1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/pci.h> 26 #include <linux/slab.h> 27 #include <linux/interrupt.h> 28 29 #include <scsi/scsi.h> 30 #include <scsi/scsi_device.h> 31 #include <scsi/scsi_host.h> 32 #include <scsi/scsi_transport_fc.h> 33 #include <scsi/fc/fc_fs.h> 34 35 #include <linux/nvme-fc-driver.h> 36 37 #include "lpfc_hw4.h" 38 #include "lpfc_hw.h" 39 #include "lpfc_sli.h" 40 #include "lpfc_sli4.h" 41 #include "lpfc_nl.h" 42 #include "lpfc_disc.h" 43 #include "lpfc.h" 44 #include "lpfc_scsi.h" 45 #include "lpfc_nvme.h" 46 #include "lpfc_logmsg.h" 47 #include "lpfc_crtn.h" 48 #include "lpfc_vport.h" 49 #include "lpfc_debugfs.h" 50 51 52 /* Called to verify a rcv'ed ADISC was intended for us. */ 53 static int 54 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 55 struct lpfc_name *nn, struct lpfc_name *pn) 56 { 57 /* First, we MUST have a RPI registered */ 58 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) 59 return 0; 60 61 /* Compare the ADISC rsp WWNN / WWPN matches our internal node 62 * table entry for that node. 63 */ 64 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) 65 return 0; 66 67 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) 68 return 0; 69 70 /* we match, return success */ 71 return 1; 72 } 73 74 int 75 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 76 struct serv_parm *sp, uint32_t class, int flogi) 77 { 78 volatile struct serv_parm *hsp = &vport->fc_sparam; 79 uint16_t hsp_value, ssp_value = 0; 80 81 /* 82 * The receive data field size and buffer-to-buffer receive data field 83 * size entries are 16 bits but are represented as two 8-bit fields in 84 * the driver data structure to account for rsvd bits and other control 85 * bits. Reconstruct and compare the fields as a 16-bit values before 86 * correcting the byte values. 87 */ 88 if (sp->cls1.classValid) { 89 if (!flogi) { 90 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) | 91 hsp->cls1.rcvDataSizeLsb); 92 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) | 93 sp->cls1.rcvDataSizeLsb); 94 if (!ssp_value) 95 goto bad_service_param; 96 if (ssp_value > hsp_value) { 97 sp->cls1.rcvDataSizeLsb = 98 hsp->cls1.rcvDataSizeLsb; 99 sp->cls1.rcvDataSizeMsb = 100 hsp->cls1.rcvDataSizeMsb; 101 } 102 } 103 } else if (class == CLASS1) 104 goto bad_service_param; 105 if (sp->cls2.classValid) { 106 if (!flogi) { 107 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) | 108 hsp->cls2.rcvDataSizeLsb); 109 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) | 110 sp->cls2.rcvDataSizeLsb); 111 if (!ssp_value) 112 goto bad_service_param; 113 if (ssp_value > hsp_value) { 114 sp->cls2.rcvDataSizeLsb = 115 hsp->cls2.rcvDataSizeLsb; 116 sp->cls2.rcvDataSizeMsb = 117 hsp->cls2.rcvDataSizeMsb; 118 } 119 } 120 } else if (class == CLASS2) 121 goto bad_service_param; 122 if (sp->cls3.classValid) { 123 if (!flogi) { 124 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) | 125 hsp->cls3.rcvDataSizeLsb); 126 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) | 127 sp->cls3.rcvDataSizeLsb); 128 if (!ssp_value) 129 goto bad_service_param; 130 if (ssp_value > hsp_value) { 131 sp->cls3.rcvDataSizeLsb = 132 hsp->cls3.rcvDataSizeLsb; 133 sp->cls3.rcvDataSizeMsb = 134 hsp->cls3.rcvDataSizeMsb; 135 } 136 } 137 } else if (class == CLASS3) 138 goto bad_service_param; 139 140 /* 141 * Preserve the upper four bits of the MSB from the PLOGI response. 142 * These bits contain the Buffer-to-Buffer State Change Number 143 * from the target and need to be passed to the FW. 144 */ 145 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; 146 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; 147 if (ssp_value > hsp_value) { 148 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; 149 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | 150 (hsp->cmn.bbRcvSizeMsb & 0x0F); 151 } 152 153 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); 154 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); 155 return 1; 156 bad_service_param: 157 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 158 "0207 Device %x " 159 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 160 "invalid service parameters. Ignoring device.\n", 161 ndlp->nlp_DID, 162 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 163 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 164 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 165 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 166 return 0; 167 } 168 169 static void * 170 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 171 struct lpfc_iocbq *rspiocb) 172 { 173 struct lpfc_dmabuf *pcmd, *prsp; 174 uint32_t *lp; 175 void *ptr = NULL; 176 IOCB_t *irsp; 177 178 irsp = &rspiocb->iocb; 179 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 180 181 /* For lpfc_els_abort, context2 could be zero'ed to delay 182 * freeing associated memory till after ABTS completes. 183 */ 184 if (pcmd) { 185 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, 186 list); 187 if (prsp) { 188 lp = (uint32_t *) prsp->virt; 189 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); 190 } 191 } else { 192 /* Force ulpStatus error since we are returning NULL ptr */ 193 if (!(irsp->ulpStatus)) { 194 irsp->ulpStatus = IOSTAT_LOCAL_REJECT; 195 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED; 196 } 197 ptr = NULL; 198 } 199 return ptr; 200 } 201 202 203 204 /* 205 * Free resources / clean up outstanding I/Os 206 * associated with a LPFC_NODELIST entry. This 207 * routine effectively results in a "software abort". 208 */ 209 void 210 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 211 { 212 LIST_HEAD(abort_list); 213 struct lpfc_sli_ring *pring; 214 struct lpfc_iocbq *iocb, *next_iocb; 215 216 pring = lpfc_phba_elsring(phba); 217 218 /* In case of error recovery path, we might have a NULL pring here */ 219 if (unlikely(!pring)) 220 return; 221 222 /* Abort outstanding I/O on NPort <nlp_DID> */ 223 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, 224 "2819 Abort outstanding I/O on NPort x%x " 225 "Data: x%x x%x x%x\n", 226 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 227 ndlp->nlp_rpi); 228 /* Clean up all fabric IOs first.*/ 229 lpfc_fabric_abort_nport(ndlp); 230 231 /* 232 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list 233 * of all ELS IOs that need an ABTS. The IOs need to stay on the 234 * txcmplq so that the abort operation completes them successfully. 235 */ 236 spin_lock_irq(&phba->hbalock); 237 if (phba->sli_rev == LPFC_SLI_REV4) 238 spin_lock(&pring->ring_lock); 239 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 240 /* Add to abort_list on on NDLP match. */ 241 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 242 list_add_tail(&iocb->dlist, &abort_list); 243 } 244 if (phba->sli_rev == LPFC_SLI_REV4) 245 spin_unlock(&pring->ring_lock); 246 spin_unlock_irq(&phba->hbalock); 247 248 /* Abort the targeted IOs and remove them from the abort list. */ 249 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) { 250 spin_lock_irq(&phba->hbalock); 251 list_del_init(&iocb->dlist); 252 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 253 spin_unlock_irq(&phba->hbalock); 254 } 255 256 INIT_LIST_HEAD(&abort_list); 257 258 /* Now process the txq */ 259 spin_lock_irq(&phba->hbalock); 260 if (phba->sli_rev == LPFC_SLI_REV4) 261 spin_lock(&pring->ring_lock); 262 263 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 264 /* Check to see if iocb matches the nport we are looking for */ 265 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 266 list_del_init(&iocb->list); 267 list_add_tail(&iocb->list, &abort_list); 268 } 269 } 270 271 if (phba->sli_rev == LPFC_SLI_REV4) 272 spin_unlock(&pring->ring_lock); 273 spin_unlock_irq(&phba->hbalock); 274 275 /* Cancel all the IOCBs from the completions list */ 276 lpfc_sli_cancel_iocbs(phba, &abort_list, 277 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 278 279 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 280 } 281 282 /* lpfc_defer_pt2pt_acc - Complete SLI3 pt2pt processing on link up 283 * @phba: pointer to lpfc hba data structure. 284 * @link_mbox: pointer to CONFIG_LINK mailbox object 285 * 286 * This routine is only called if we are SLI3, direct connect pt2pt 287 * mode and the remote NPort issues the PLOGI after link up. 288 */ 289 static void 290 lpfc_defer_pt2pt_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *link_mbox) 291 { 292 LPFC_MBOXQ_t *login_mbox; 293 MAILBOX_t *mb = &link_mbox->u.mb; 294 struct lpfc_iocbq *save_iocb; 295 struct lpfc_nodelist *ndlp; 296 int rc; 297 298 ndlp = link_mbox->ctx_ndlp; 299 login_mbox = link_mbox->context3; 300 save_iocb = login_mbox->context3; 301 link_mbox->context3 = NULL; 302 login_mbox->context3 = NULL; 303 304 /* Check for CONFIG_LINK error */ 305 if (mb->mbxStatus) { 306 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 307 "4575 CONFIG_LINK fails pt2pt discovery: %x\n", 308 mb->mbxStatus); 309 mempool_free(login_mbox, phba->mbox_mem_pool); 310 mempool_free(link_mbox, phba->mbox_mem_pool); 311 lpfc_sli_release_iocbq(phba, save_iocb); 312 return; 313 } 314 315 /* Now that CONFIG_LINK completed, and our SID is configured, 316 * we can now proceed with sending the PLOGI ACC. 317 */ 318 rc = lpfc_els_rsp_acc(link_mbox->vport, ELS_CMD_PLOGI, 319 save_iocb, ndlp, login_mbox); 320 if (rc) { 321 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 322 "4576 PLOGI ACC fails pt2pt discovery: %x\n", 323 rc); 324 mempool_free(login_mbox, phba->mbox_mem_pool); 325 } 326 327 mempool_free(link_mbox, phba->mbox_mem_pool); 328 lpfc_sli_release_iocbq(phba, save_iocb); 329 } 330 331 static int 332 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 333 struct lpfc_iocbq *cmdiocb) 334 { 335 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 336 struct lpfc_hba *phba = vport->phba; 337 struct lpfc_dmabuf *pcmd; 338 uint64_t nlp_portwwn = 0; 339 uint32_t *lp; 340 IOCB_t *icmd; 341 struct serv_parm *sp; 342 uint32_t ed_tov; 343 LPFC_MBOXQ_t *link_mbox; 344 LPFC_MBOXQ_t *login_mbox; 345 struct lpfc_iocbq *save_iocb; 346 struct ls_rjt stat; 347 uint32_t vid, flag; 348 int rc, defer_acc; 349 350 memset(&stat, 0, sizeof (struct ls_rjt)); 351 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 352 lp = (uint32_t *) pcmd->virt; 353 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 354 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 355 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 356 "0140 PLOGI Reject: invalid nname\n"); 357 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 358 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 359 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 360 NULL); 361 return 0; 362 } 363 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 364 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 365 "0141 PLOGI Reject: invalid pname\n"); 366 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 367 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 368 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 369 NULL); 370 return 0; 371 } 372 373 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 374 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 375 /* Reject this request because invalid parameters */ 376 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 377 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 378 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 379 NULL); 380 return 0; 381 } 382 icmd = &cmdiocb->iocb; 383 384 /* PLOGI chkparm OK */ 385 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 386 "0114 PLOGI chkparm OK Data: x%x x%x x%x " 387 "x%x x%x x%x\n", 388 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 389 ndlp->nlp_rpi, vport->port_state, 390 vport->fc_flag); 391 392 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 393 ndlp->nlp_fcp_info |= CLASS2; 394 else 395 ndlp->nlp_fcp_info |= CLASS3; 396 397 defer_acc = 0; 398 ndlp->nlp_class_sup = 0; 399 if (sp->cls1.classValid) 400 ndlp->nlp_class_sup |= FC_COS_CLASS1; 401 if (sp->cls2.classValid) 402 ndlp->nlp_class_sup |= FC_COS_CLASS2; 403 if (sp->cls3.classValid) 404 ndlp->nlp_class_sup |= FC_COS_CLASS3; 405 if (sp->cls4.classValid) 406 ndlp->nlp_class_sup |= FC_COS_CLASS4; 407 ndlp->nlp_maxframe = 408 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 409 /* if already logged in, do implicit logout */ 410 switch (ndlp->nlp_state) { 411 case NLP_STE_NPR_NODE: 412 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 413 break; 414 /* fall through */ 415 case NLP_STE_REG_LOGIN_ISSUE: 416 case NLP_STE_PRLI_ISSUE: 417 case NLP_STE_UNMAPPED_NODE: 418 case NLP_STE_MAPPED_NODE: 419 /* For initiators, lpfc_plogi_confirm_nport skips fabric did. 420 * For target mode, execute implicit logo. 421 * Fabric nodes go into NPR. 422 */ 423 if (!(ndlp->nlp_type & NLP_FABRIC) && 424 !(phba->nvmet_support)) { 425 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 426 ndlp, NULL); 427 return 1; 428 } 429 if (nlp_portwwn != 0 && 430 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 431 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 432 "0143 PLOGI recv'd from DID: x%x " 433 "WWPN changed: old %llx new %llx\n", 434 ndlp->nlp_DID, 435 (unsigned long long)nlp_portwwn, 436 (unsigned long long) 437 wwn_to_u64(sp->portName.u.wwn)); 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_flag &= ~NLP_FIRSTBURST; 449 450 login_mbox = NULL; 451 link_mbox = NULL; 452 save_iocb = NULL; 453 454 /* Check for Nport to NPort pt2pt protocol */ 455 if ((vport->fc_flag & FC_PT2PT) && 456 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 457 /* rcv'ed PLOGI decides what our NPortId will be */ 458 vport->fc_myDID = icmd->un.rcvels.parmRo; 459 460 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 461 if (sp->cmn.edtovResolution) { 462 /* E_D_TOV ticks are in nanoseconds */ 463 ed_tov = (phba->fc_edtov + 999999) / 1000000; 464 } 465 466 /* 467 * For pt-to-pt, use the larger EDTOV 468 * RATOV = 2 * EDTOV 469 */ 470 if (ed_tov > phba->fc_edtov) 471 phba->fc_edtov = ed_tov; 472 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 473 474 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 475 476 /* Issue config_link / reg_vfi to account for updated TOV's */ 477 478 if (phba->sli_rev == LPFC_SLI_REV4) 479 lpfc_issue_reg_vfi(vport); 480 else { 481 defer_acc = 1; 482 link_mbox = mempool_alloc(phba->mbox_mem_pool, 483 GFP_KERNEL); 484 if (!link_mbox) 485 goto out; 486 lpfc_config_link(phba, link_mbox); 487 link_mbox->mbox_cmpl = lpfc_defer_pt2pt_acc; 488 link_mbox->vport = vport; 489 link_mbox->ctx_ndlp = ndlp; 490 491 save_iocb = lpfc_sli_get_iocbq(phba); 492 if (!save_iocb) 493 goto out; 494 /* Save info from cmd IOCB used in rsp */ 495 memcpy((uint8_t *)save_iocb, (uint8_t *)cmdiocb, 496 sizeof(struct lpfc_iocbq)); 497 } 498 499 lpfc_can_disctmo(vport); 500 } 501 502 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 503 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 504 sp->cmn.valid_vendor_ver_level) { 505 vid = be32_to_cpu(sp->un.vv.vid); 506 flag = be32_to_cpu(sp->un.vv.flags); 507 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) 508 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 509 } 510 511 login_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 512 if (!login_mbox) 513 goto out; 514 515 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 516 if (phba->sli_rev == LPFC_SLI_REV4) 517 lpfc_unreg_rpi(vport, ndlp); 518 519 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID, 520 (uint8_t *)sp, login_mbox, ndlp->nlp_rpi); 521 if (rc) 522 goto out; 523 524 /* ACC PLOGI rsp command needs to execute first, 525 * queue this login_mbox command to be processed later. 526 */ 527 login_mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 528 /* 529 * login_mbox->ctx_ndlp = lpfc_nlp_get(ndlp) deferred until mailbox 530 * command issued in lpfc_cmpl_els_acc(). 531 */ 532 login_mbox->vport = vport; 533 spin_lock_irq(shost->host_lock); 534 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 535 spin_unlock_irq(shost->host_lock); 536 537 /* 538 * If there is an outstanding PLOGI issued, abort it before 539 * sending ACC rsp for received PLOGI. If pending plogi 540 * is not canceled here, the plogi will be rejected by 541 * remote port and will be retried. On a configuration with 542 * single discovery thread, this will cause a huge delay in 543 * discovery. Also this will cause multiple state machines 544 * running in parallel for this node. 545 * This only applies to a fabric environment. 546 */ 547 if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) && 548 (vport->fc_flag & FC_FABRIC)) { 549 /* software abort outstanding PLOGI */ 550 lpfc_els_abort(phba, ndlp); 551 } 552 553 if ((vport->port_type == LPFC_NPIV_PORT && 554 vport->cfg_restrict_login)) { 555 556 /* In order to preserve RPIs, we want to cleanup 557 * the default RPI the firmware created to rcv 558 * this ELS request. The only way to do this is 559 * to register, then unregister the RPI. 560 */ 561 spin_lock_irq(shost->host_lock); 562 ndlp->nlp_flag |= NLP_RM_DFLT_RPI; 563 spin_unlock_irq(shost->host_lock); 564 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 565 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 566 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 567 ndlp, login_mbox); 568 if (rc) 569 mempool_free(login_mbox, phba->mbox_mem_pool); 570 return 1; 571 } 572 if (defer_acc) { 573 /* So the order here should be: 574 * Issue CONFIG_LINK mbox 575 * CONFIG_LINK cmpl 576 * Issue PLOGI ACC 577 * PLOGI ACC cmpl 578 * Issue REG_LOGIN mbox 579 */ 580 581 /* Save the REG_LOGIN mbox for and rcv IOCB copy later */ 582 link_mbox->context3 = login_mbox; 583 login_mbox->context3 = save_iocb; 584 585 /* Start the ball rolling by issuing CONFIG_LINK here */ 586 rc = lpfc_sli_issue_mbox(phba, link_mbox, MBX_NOWAIT); 587 if (rc == MBX_NOT_FINISHED) 588 goto out; 589 return 1; 590 } 591 592 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, login_mbox); 593 if (rc) 594 mempool_free(login_mbox, phba->mbox_mem_pool); 595 return 1; 596 out: 597 if (defer_acc) 598 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 599 "4577 pt2pt discovery failure: %p %p %p\n", 600 save_iocb, link_mbox, login_mbox); 601 if (save_iocb) 602 lpfc_sli_release_iocbq(phba, save_iocb); 603 if (link_mbox) 604 mempool_free(link_mbox, phba->mbox_mem_pool); 605 if (login_mbox) 606 mempool_free(login_mbox, phba->mbox_mem_pool); 607 608 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 609 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 610 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 611 return 0; 612 } 613 614 /** 615 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 616 * @phba: pointer to lpfc hba data structure. 617 * @mboxq: pointer to mailbox object 618 * 619 * This routine is invoked to issue a completion to a rcv'ed 620 * ADISC or PDISC after the paused RPI has been resumed. 621 **/ 622 static void 623 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 624 { 625 struct lpfc_vport *vport; 626 struct lpfc_iocbq *elsiocb; 627 struct lpfc_nodelist *ndlp; 628 uint32_t cmd; 629 630 elsiocb = (struct lpfc_iocbq *)mboxq->ctx_buf; 631 ndlp = (struct lpfc_nodelist *)mboxq->ctx_ndlp; 632 vport = mboxq->vport; 633 cmd = elsiocb->drvrTimeout; 634 635 if (cmd == ELS_CMD_ADISC) { 636 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 637 } else { 638 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 639 ndlp, NULL); 640 } 641 kfree(elsiocb); 642 mempool_free(mboxq, phba->mbox_mem_pool); 643 } 644 645 static int 646 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 647 struct lpfc_iocbq *cmdiocb) 648 { 649 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 650 struct lpfc_iocbq *elsiocb; 651 struct lpfc_dmabuf *pcmd; 652 struct serv_parm *sp; 653 struct lpfc_name *pnn, *ppn; 654 struct ls_rjt stat; 655 ADISC *ap; 656 IOCB_t *icmd; 657 uint32_t *lp; 658 uint32_t cmd; 659 660 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 661 lp = (uint32_t *) pcmd->virt; 662 663 cmd = *lp++; 664 if (cmd == ELS_CMD_ADISC) { 665 ap = (ADISC *) lp; 666 pnn = (struct lpfc_name *) & ap->nodeName; 667 ppn = (struct lpfc_name *) & ap->portName; 668 } else { 669 sp = (struct serv_parm *) lp; 670 pnn = (struct lpfc_name *) & sp->nodeName; 671 ppn = (struct lpfc_name *) & sp->portName; 672 } 673 674 icmd = &cmdiocb->iocb; 675 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 676 677 /* 678 * As soon as we send ACC, the remote NPort can 679 * start sending us data. Thus, for SLI4 we must 680 * resume the RPI before the ACC goes out. 681 */ 682 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 683 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 684 GFP_KERNEL); 685 if (elsiocb) { 686 687 /* Save info from cmd IOCB used in rsp */ 688 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 689 sizeof(struct lpfc_iocbq)); 690 691 /* Save the ELS cmd */ 692 elsiocb->drvrTimeout = cmd; 693 694 lpfc_sli4_resume_rpi(ndlp, 695 lpfc_mbx_cmpl_resume_rpi, elsiocb); 696 goto out; 697 } 698 } 699 700 if (cmd == ELS_CMD_ADISC) { 701 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 702 } else { 703 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 704 ndlp, NULL); 705 } 706 out: 707 /* If we are authenticated, move to the proper state */ 708 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 709 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 710 else 711 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 712 713 return 1; 714 } 715 /* Reject this request because invalid parameters */ 716 stat.un.b.lsRjtRsvd0 = 0; 717 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 718 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 719 stat.un.b.vendorUnique = 0; 720 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 721 722 /* 1 sec timeout */ 723 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 724 725 spin_lock_irq(shost->host_lock); 726 ndlp->nlp_flag |= NLP_DELAY_TMO; 727 spin_unlock_irq(shost->host_lock); 728 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 729 ndlp->nlp_prev_state = ndlp->nlp_state; 730 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 731 return 0; 732 } 733 734 static int 735 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 736 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 737 { 738 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 739 struct lpfc_hba *phba = vport->phba; 740 struct lpfc_vport **vports; 741 int i, active_vlink_present = 0 ; 742 743 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 744 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 745 * PLOGIs during LOGO storms from a device. 746 */ 747 spin_lock_irq(shost->host_lock); 748 ndlp->nlp_flag |= NLP_LOGO_ACC; 749 spin_unlock_irq(shost->host_lock); 750 if (els_cmd == ELS_CMD_PRLO) 751 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 752 else 753 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 754 if (ndlp->nlp_DID == Fabric_DID) { 755 if (vport->port_state <= LPFC_FDISC) 756 goto out; 757 lpfc_linkdown_port(vport); 758 spin_lock_irq(shost->host_lock); 759 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 760 spin_unlock_irq(shost->host_lock); 761 vports = lpfc_create_vport_work_array(phba); 762 if (vports) { 763 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 764 i++) { 765 if ((!(vports[i]->fc_flag & 766 FC_VPORT_LOGO_RCVD)) && 767 (vports[i]->port_state > LPFC_FDISC)) { 768 active_vlink_present = 1; 769 break; 770 } 771 } 772 lpfc_destroy_vport_work_array(phba, vports); 773 } 774 775 /* 776 * Don't re-instantiate if vport is marked for deletion. 777 * If we are here first then vport_delete is going to wait 778 * for discovery to complete. 779 */ 780 if (!(vport->load_flag & FC_UNLOADING) && 781 active_vlink_present) { 782 /* 783 * If there are other active VLinks present, 784 * re-instantiate the Vlink using FDISC. 785 */ 786 mod_timer(&ndlp->nlp_delayfunc, 787 jiffies + msecs_to_jiffies(1000)); 788 spin_lock_irq(shost->host_lock); 789 ndlp->nlp_flag |= NLP_DELAY_TMO; 790 spin_unlock_irq(shost->host_lock); 791 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 792 vport->port_state = LPFC_FDISC; 793 } else { 794 spin_lock_irq(shost->host_lock); 795 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 796 spin_unlock_irq(shost->host_lock); 797 lpfc_retry_pport_discovery(phba); 798 } 799 } else if ((!(ndlp->nlp_type & NLP_FABRIC) && 800 ((ndlp->nlp_type & NLP_FCP_TARGET) || 801 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) || 802 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { 803 /* Only try to re-login if this is NOT a Fabric Node */ 804 mod_timer(&ndlp->nlp_delayfunc, 805 jiffies + msecs_to_jiffies(1000 * 1)); 806 spin_lock_irq(shost->host_lock); 807 ndlp->nlp_flag |= NLP_DELAY_TMO; 808 spin_unlock_irq(shost->host_lock); 809 810 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 811 } 812 out: 813 ndlp->nlp_prev_state = ndlp->nlp_state; 814 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 815 816 spin_lock_irq(shost->host_lock); 817 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 818 spin_unlock_irq(shost->host_lock); 819 /* The driver has to wait until the ACC completes before it continues 820 * processing the LOGO. The action will resume in 821 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 822 * unreg_login, the driver waits so the ACC does not get aborted. 823 */ 824 return 0; 825 } 826 827 static uint32_t 828 lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 829 struct lpfc_nodelist *ndlp, 830 struct lpfc_iocbq *cmdiocb) 831 { 832 struct ls_rjt stat; 833 uint32_t *payload; 834 uint32_t cmd; 835 836 payload = ((struct lpfc_dmabuf *)cmdiocb->context2)->virt; 837 cmd = *payload; 838 if (vport->phba->nvmet_support) { 839 /* Must be a NVME PRLI */ 840 if (cmd == ELS_CMD_PRLI) 841 goto out; 842 } else { 843 /* Initiator mode. */ 844 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 845 goto out; 846 } 847 return 1; 848 out: 849 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC, 850 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 851 "state x%x flags x%x\n", 852 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 853 ndlp->nlp_flag); 854 memset(&stat, 0, sizeof(struct ls_rjt)); 855 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 856 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 857 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 858 ndlp, NULL); 859 return 0; 860 } 861 862 static void 863 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 864 struct lpfc_iocbq *cmdiocb) 865 { 866 struct lpfc_hba *phba = vport->phba; 867 struct lpfc_dmabuf *pcmd; 868 uint32_t *lp; 869 PRLI *npr; 870 struct fc_rport *rport = ndlp->rport; 871 u32 roles; 872 873 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 874 lp = (uint32_t *) pcmd->virt; 875 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t)); 876 877 if ((npr->prliType == PRLI_FCP_TYPE) || 878 (npr->prliType == PRLI_NVME_TYPE)) { 879 if (npr->initiatorFunc) { 880 if (npr->prliType == PRLI_FCP_TYPE) 881 ndlp->nlp_type |= NLP_FCP_INITIATOR; 882 if (npr->prliType == PRLI_NVME_TYPE) 883 ndlp->nlp_type |= NLP_NVME_INITIATOR; 884 } 885 if (npr->targetFunc) { 886 if (npr->prliType == PRLI_FCP_TYPE) 887 ndlp->nlp_type |= NLP_FCP_TARGET; 888 if (npr->prliType == PRLI_NVME_TYPE) 889 ndlp->nlp_type |= NLP_NVME_TARGET; 890 if (npr->writeXferRdyDis) 891 ndlp->nlp_flag |= NLP_FIRSTBURST; 892 } 893 if (npr->Retry && ndlp->nlp_type & 894 (NLP_FCP_INITIATOR | NLP_FCP_TARGET)) 895 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 896 897 if (npr->Retry && phba->nsler && 898 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET)) 899 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 900 901 902 /* If this driver is in nvme target mode, set the ndlp's fc4 903 * type to NVME provided the PRLI response claims NVME FC4 904 * type. Target mode does not issue gft_id so doesn't get 905 * the fc4 type set until now. 906 */ 907 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 908 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 909 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 910 } 911 if (npr->prliType == PRLI_FCP_TYPE) 912 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 913 } 914 if (rport) { 915 /* We need to update the rport role values */ 916 roles = FC_RPORT_ROLE_UNKNOWN; 917 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 918 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 919 if (ndlp->nlp_type & NLP_FCP_TARGET) 920 roles |= FC_RPORT_ROLE_FCP_TARGET; 921 922 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 923 "rport rolechg: role:x%x did:x%x flg:x%x", 924 roles, ndlp->nlp_DID, ndlp->nlp_flag); 925 926 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 927 fc_remote_port_rolechg(rport, roles); 928 } 929 } 930 931 static uint32_t 932 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 933 { 934 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 935 936 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 937 spin_lock_irq(shost->host_lock); 938 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 939 spin_unlock_irq(shost->host_lock); 940 return 0; 941 } 942 943 if (!(vport->fc_flag & FC_PT2PT)) { 944 /* Check config parameter use-adisc or FCP-2 */ 945 if (vport->cfg_use_adisc && ((vport->fc_flag & FC_RSCN_MODE) || 946 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 947 (ndlp->nlp_type & NLP_FCP_TARGET)))) { 948 spin_lock_irq(shost->host_lock); 949 ndlp->nlp_flag |= NLP_NPR_ADISC; 950 spin_unlock_irq(shost->host_lock); 951 return 1; 952 } 953 } 954 955 spin_lock_irq(shost->host_lock); 956 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 957 spin_unlock_irq(shost->host_lock); 958 lpfc_unreg_rpi(vport, ndlp); 959 return 0; 960 } 961 962 /** 963 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 964 * @phba : Pointer to lpfc_hba structure. 965 * @vport: Pointer to lpfc_vport structure. 966 * @rpi : rpi to be release. 967 * 968 * This function will send a unreg_login mailbox command to the firmware 969 * to release a rpi. 970 **/ 971 static void 972 lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, 973 struct lpfc_nodelist *ndlp, uint16_t rpi) 974 { 975 LPFC_MBOXQ_t *pmb; 976 int rc; 977 978 /* If there is already an UNREG in progress for this ndlp, 979 * no need to queue up another one. 980 */ 981 if (ndlp->nlp_flag & NLP_UNREG_INP) { 982 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 983 "1435 release_rpi SKIP UNREG x%x on " 984 "NPort x%x deferred x%x flg x%x " 985 "Data: x%px\n", 986 ndlp->nlp_rpi, ndlp->nlp_DID, 987 ndlp->nlp_defer_did, 988 ndlp->nlp_flag, ndlp); 989 return; 990 } 991 992 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 993 GFP_KERNEL); 994 if (!pmb) 995 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 996 "2796 mailbox memory allocation failed \n"); 997 else { 998 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 999 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1000 pmb->vport = vport; 1001 pmb->ctx_ndlp = ndlp; 1002 1003 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 1004 (!(vport->fc_flag & FC_OFFLINE_MODE))) 1005 ndlp->nlp_flag |= NLP_UNREG_INP; 1006 1007 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1008 "1437 release_rpi UNREG x%x " 1009 "on NPort x%x flg x%x\n", 1010 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); 1011 1012 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 1013 if (rc == MBX_NOT_FINISHED) 1014 mempool_free(pmb, phba->mbox_mem_pool); 1015 } 1016 } 1017 1018 static uint32_t 1019 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1020 void *arg, uint32_t evt) 1021 { 1022 struct lpfc_hba *phba; 1023 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1024 uint16_t rpi; 1025 1026 phba = vport->phba; 1027 /* Release the RPI if reglogin completing */ 1028 if (!(phba->pport->load_flag & FC_UNLOADING) && 1029 (evt == NLP_EVT_CMPL_REG_LOGIN) && 1030 (!pmb->u.mb.mbxStatus)) { 1031 rpi = pmb->u.mb.un.varWords[0]; 1032 lpfc_release_rpi(phba, vport, ndlp, rpi); 1033 } 1034 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1035 "0271 Illegal State Transition: node x%x " 1036 "event x%x, state x%x Data: x%x x%x\n", 1037 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1038 ndlp->nlp_flag); 1039 return ndlp->nlp_state; 1040 } 1041 1042 static uint32_t 1043 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1044 void *arg, uint32_t evt) 1045 { 1046 /* This transition is only legal if we previously 1047 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 1048 * working on the same NPortID, do nothing for this thread 1049 * to stop it. 1050 */ 1051 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 1052 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1053 "0272 Illegal State Transition: node x%x " 1054 "event x%x, state x%x Data: x%x x%x\n", 1055 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1056 ndlp->nlp_flag); 1057 } 1058 return ndlp->nlp_state; 1059 } 1060 1061 /* Start of Discovery State Machine routines */ 1062 1063 static uint32_t 1064 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1065 void *arg, uint32_t evt) 1066 { 1067 struct lpfc_iocbq *cmdiocb; 1068 1069 cmdiocb = (struct lpfc_iocbq *) arg; 1070 1071 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1072 return ndlp->nlp_state; 1073 } 1074 return NLP_STE_FREED_NODE; 1075 } 1076 1077 static uint32_t 1078 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1079 void *arg, uint32_t evt) 1080 { 1081 lpfc_issue_els_logo(vport, ndlp, 0); 1082 return ndlp->nlp_state; 1083 } 1084 1085 static uint32_t 1086 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1087 void *arg, uint32_t evt) 1088 { 1089 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1090 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1091 1092 spin_lock_irq(shost->host_lock); 1093 ndlp->nlp_flag |= NLP_LOGO_ACC; 1094 spin_unlock_irq(shost->host_lock); 1095 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1096 1097 return ndlp->nlp_state; 1098 } 1099 1100 static uint32_t 1101 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1102 void *arg, uint32_t evt) 1103 { 1104 return NLP_STE_FREED_NODE; 1105 } 1106 1107 static uint32_t 1108 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1109 void *arg, uint32_t evt) 1110 { 1111 return NLP_STE_FREED_NODE; 1112 } 1113 1114 static uint32_t 1115 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 1116 struct lpfc_nodelist *ndlp, 1117 void *arg, uint32_t evt) 1118 { 1119 return ndlp->nlp_state; 1120 } 1121 1122 static uint32_t 1123 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1124 void *arg, uint32_t evt) 1125 { 1126 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1127 struct lpfc_hba *phba = vport->phba; 1128 struct lpfc_iocbq *cmdiocb = arg; 1129 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1130 uint32_t *lp = (uint32_t *) pcmd->virt; 1131 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1132 struct ls_rjt stat; 1133 int port_cmp; 1134 1135 memset(&stat, 0, sizeof (struct ls_rjt)); 1136 1137 /* For a PLOGI, we only accept if our portname is less 1138 * than the remote portname. 1139 */ 1140 phba->fc_stat.elsLogiCol++; 1141 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1142 sizeof(struct lpfc_name)); 1143 1144 if (port_cmp >= 0) { 1145 /* Reject this request because the remote node will accept 1146 ours */ 1147 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1148 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1149 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1150 NULL); 1151 } else { 1152 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1153 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 1154 (vport->num_disc_nodes)) { 1155 spin_lock_irq(shost->host_lock); 1156 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1157 spin_unlock_irq(shost->host_lock); 1158 /* Check if there are more PLOGIs to be sent */ 1159 lpfc_more_plogi(vport); 1160 if (vport->num_disc_nodes == 0) { 1161 spin_lock_irq(shost->host_lock); 1162 vport->fc_flag &= ~FC_NDISC_ACTIVE; 1163 spin_unlock_irq(shost->host_lock); 1164 lpfc_can_disctmo(vport); 1165 lpfc_end_rscn(vport); 1166 } 1167 } 1168 } /* If our portname was less */ 1169 1170 return ndlp->nlp_state; 1171 } 1172 1173 static uint32_t 1174 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1175 void *arg, uint32_t evt) 1176 { 1177 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1178 struct ls_rjt stat; 1179 1180 memset(&stat, 0, sizeof (struct ls_rjt)); 1181 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1182 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1183 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1184 return ndlp->nlp_state; 1185 } 1186 1187 static uint32_t 1188 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1189 void *arg, uint32_t evt) 1190 { 1191 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1192 1193 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1194 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1195 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1196 /* software abort outstanding PLOGI */ 1197 lpfc_els_abort(vport->phba, ndlp); 1198 1199 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1200 return ndlp->nlp_state; 1201 } 1202 1203 static uint32_t 1204 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1205 void *arg, uint32_t evt) 1206 { 1207 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1208 struct lpfc_hba *phba = vport->phba; 1209 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1210 1211 /* software abort outstanding PLOGI */ 1212 lpfc_els_abort(phba, ndlp); 1213 1214 if (evt == NLP_EVT_RCV_LOGO) { 1215 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1216 } else { 1217 lpfc_issue_els_logo(vport, ndlp, 0); 1218 } 1219 1220 /* Put ndlp in npr state set plogi timer for 1 sec */ 1221 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1222 spin_lock_irq(shost->host_lock); 1223 ndlp->nlp_flag |= NLP_DELAY_TMO; 1224 spin_unlock_irq(shost->host_lock); 1225 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1226 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1227 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1228 1229 return ndlp->nlp_state; 1230 } 1231 1232 static uint32_t 1233 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1234 struct lpfc_nodelist *ndlp, 1235 void *arg, 1236 uint32_t evt) 1237 { 1238 struct lpfc_hba *phba = vport->phba; 1239 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1240 struct lpfc_iocbq *cmdiocb, *rspiocb; 1241 struct lpfc_dmabuf *pcmd, *prsp, *mp; 1242 uint32_t *lp; 1243 uint32_t vid, flag; 1244 IOCB_t *irsp; 1245 struct serv_parm *sp; 1246 uint32_t ed_tov; 1247 LPFC_MBOXQ_t *mbox; 1248 int rc; 1249 1250 cmdiocb = (struct lpfc_iocbq *) arg; 1251 rspiocb = cmdiocb->context_un.rsp_iocb; 1252 1253 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1254 /* Recovery from PLOGI collision logic */ 1255 return ndlp->nlp_state; 1256 } 1257 1258 irsp = &rspiocb->iocb; 1259 1260 if (irsp->ulpStatus) 1261 goto out; 1262 1263 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1264 1265 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1266 if (!prsp) 1267 goto out; 1268 1269 lp = (uint32_t *) prsp->virt; 1270 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1271 1272 /* Some switches have FDMI servers returning 0 for WWN */ 1273 if ((ndlp->nlp_DID != FDMI_DID) && 1274 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1275 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1276 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1277 "0142 PLOGI RSP: Invalid WWN.\n"); 1278 goto out; 1279 } 1280 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1281 goto out; 1282 /* PLOGI chkparm OK */ 1283 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1284 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1285 ndlp->nlp_DID, ndlp->nlp_state, 1286 ndlp->nlp_flag, ndlp->nlp_rpi); 1287 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1288 ndlp->nlp_fcp_info |= CLASS2; 1289 else 1290 ndlp->nlp_fcp_info |= CLASS3; 1291 1292 ndlp->nlp_class_sup = 0; 1293 if (sp->cls1.classValid) 1294 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1295 if (sp->cls2.classValid) 1296 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1297 if (sp->cls3.classValid) 1298 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1299 if (sp->cls4.classValid) 1300 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1301 ndlp->nlp_maxframe = 1302 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1303 1304 if ((vport->fc_flag & FC_PT2PT) && 1305 (vport->fc_flag & FC_PT2PT_PLOGI)) { 1306 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1307 if (sp->cmn.edtovResolution) { 1308 /* E_D_TOV ticks are in nanoseconds */ 1309 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1310 } 1311 1312 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 1313 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1314 sp->cmn.valid_vendor_ver_level) { 1315 vid = be32_to_cpu(sp->un.vv.vid); 1316 flag = be32_to_cpu(sp->un.vv.flags); 1317 if ((vid == LPFC_VV_EMLX_ID) && 1318 (flag & LPFC_VV_SUPPRESS_RSP)) 1319 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 1320 } 1321 1322 /* 1323 * Use the larger EDTOV 1324 * RATOV = 2 * EDTOV for pt-to-pt 1325 */ 1326 if (ed_tov > phba->fc_edtov) 1327 phba->fc_edtov = ed_tov; 1328 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1329 1330 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1331 1332 /* Issue config_link / reg_vfi to account for updated TOV's */ 1333 if (phba->sli_rev == LPFC_SLI_REV4) { 1334 lpfc_issue_reg_vfi(vport); 1335 } else { 1336 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1337 if (!mbox) { 1338 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1339 "0133 PLOGI: no memory " 1340 "for config_link " 1341 "Data: x%x x%x x%x x%x\n", 1342 ndlp->nlp_DID, ndlp->nlp_state, 1343 ndlp->nlp_flag, ndlp->nlp_rpi); 1344 goto out; 1345 } 1346 1347 lpfc_config_link(phba, mbox); 1348 1349 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1350 mbox->vport = vport; 1351 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1352 if (rc == MBX_NOT_FINISHED) { 1353 mempool_free(mbox, phba->mbox_mem_pool); 1354 goto out; 1355 } 1356 } 1357 } 1358 1359 lpfc_unreg_rpi(vport, ndlp); 1360 1361 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1362 if (!mbox) { 1363 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1364 "0018 PLOGI: no memory for reg_login " 1365 "Data: x%x x%x x%x x%x\n", 1366 ndlp->nlp_DID, ndlp->nlp_state, 1367 ndlp->nlp_flag, ndlp->nlp_rpi); 1368 goto out; 1369 } 1370 1371 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID, 1372 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1373 switch (ndlp->nlp_DID) { 1374 case NameServer_DID: 1375 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1376 break; 1377 case FDMI_DID: 1378 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1379 break; 1380 default: 1381 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1382 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1383 } 1384 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1385 mbox->vport = vport; 1386 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1387 != MBX_NOT_FINISHED) { 1388 lpfc_nlp_set_state(vport, ndlp, 1389 NLP_STE_REG_LOGIN_ISSUE); 1390 return ndlp->nlp_state; 1391 } 1392 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1393 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1394 /* decrement node reference count to the failed mbox 1395 * command 1396 */ 1397 lpfc_nlp_put(ndlp); 1398 mp = (struct lpfc_dmabuf *)mbox->ctx_buf; 1399 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1400 kfree(mp); 1401 mempool_free(mbox, phba->mbox_mem_pool); 1402 1403 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1404 "0134 PLOGI: cannot issue reg_login " 1405 "Data: x%x x%x x%x x%x\n", 1406 ndlp->nlp_DID, ndlp->nlp_state, 1407 ndlp->nlp_flag, ndlp->nlp_rpi); 1408 } else { 1409 mempool_free(mbox, phba->mbox_mem_pool); 1410 1411 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1412 "0135 PLOGI: cannot format reg_login " 1413 "Data: x%x x%x x%x x%x\n", 1414 ndlp->nlp_DID, ndlp->nlp_state, 1415 ndlp->nlp_flag, ndlp->nlp_rpi); 1416 } 1417 1418 1419 out: 1420 if (ndlp->nlp_DID == NameServer_DID) { 1421 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1422 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1423 "0261 Cannot Register NameServer login\n"); 1424 } 1425 1426 /* 1427 ** In case the node reference counter does not go to zero, ensure that 1428 ** the stale state for the node is not processed. 1429 */ 1430 1431 ndlp->nlp_prev_state = ndlp->nlp_state; 1432 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1433 spin_lock_irq(shost->host_lock); 1434 ndlp->nlp_flag |= NLP_DEFER_RM; 1435 spin_unlock_irq(shost->host_lock); 1436 return NLP_STE_FREED_NODE; 1437 } 1438 1439 static uint32_t 1440 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1441 void *arg, uint32_t evt) 1442 { 1443 return ndlp->nlp_state; 1444 } 1445 1446 static uint32_t 1447 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1448 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1449 { 1450 struct lpfc_hba *phba; 1451 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1452 MAILBOX_t *mb = &pmb->u.mb; 1453 uint16_t rpi; 1454 1455 phba = vport->phba; 1456 /* Release the RPI */ 1457 if (!(phba->pport->load_flag & FC_UNLOADING) && 1458 !mb->mbxStatus) { 1459 rpi = pmb->u.mb.un.varWords[0]; 1460 lpfc_release_rpi(phba, vport, ndlp, rpi); 1461 } 1462 return ndlp->nlp_state; 1463 } 1464 1465 static uint32_t 1466 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1467 void *arg, uint32_t evt) 1468 { 1469 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1470 1471 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1472 spin_lock_irq(shost->host_lock); 1473 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1474 spin_unlock_irq(shost->host_lock); 1475 return ndlp->nlp_state; 1476 } else { 1477 /* software abort outstanding PLOGI */ 1478 lpfc_els_abort(vport->phba, ndlp); 1479 1480 lpfc_drop_node(vport, ndlp); 1481 return NLP_STE_FREED_NODE; 1482 } 1483 } 1484 1485 static uint32_t 1486 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1487 struct lpfc_nodelist *ndlp, 1488 void *arg, 1489 uint32_t evt) 1490 { 1491 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1492 struct lpfc_hba *phba = vport->phba; 1493 1494 /* Don't do anything that will mess up processing of the 1495 * previous RSCN. 1496 */ 1497 if (vport->fc_flag & FC_RSCN_DEFERRED) 1498 return ndlp->nlp_state; 1499 1500 /* software abort outstanding PLOGI */ 1501 lpfc_els_abort(phba, ndlp); 1502 1503 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1504 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1505 spin_lock_irq(shost->host_lock); 1506 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1507 spin_unlock_irq(shost->host_lock); 1508 1509 return ndlp->nlp_state; 1510 } 1511 1512 static uint32_t 1513 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1514 void *arg, uint32_t evt) 1515 { 1516 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1517 struct lpfc_hba *phba = vport->phba; 1518 struct lpfc_iocbq *cmdiocb; 1519 1520 /* software abort outstanding ADISC */ 1521 lpfc_els_abort(phba, ndlp); 1522 1523 cmdiocb = (struct lpfc_iocbq *) arg; 1524 1525 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1526 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1527 spin_lock_irq(shost->host_lock); 1528 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1529 spin_unlock_irq(shost->host_lock); 1530 if (vport->num_disc_nodes) 1531 lpfc_more_adisc(vport); 1532 } 1533 return ndlp->nlp_state; 1534 } 1535 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1536 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1537 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1538 1539 return ndlp->nlp_state; 1540 } 1541 1542 static uint32_t 1543 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1544 void *arg, uint32_t evt) 1545 { 1546 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1547 1548 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1549 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1550 return ndlp->nlp_state; 1551 } 1552 1553 static uint32_t 1554 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1555 void *arg, uint32_t evt) 1556 { 1557 struct lpfc_hba *phba = vport->phba; 1558 struct lpfc_iocbq *cmdiocb; 1559 1560 cmdiocb = (struct lpfc_iocbq *) arg; 1561 1562 /* software abort outstanding ADISC */ 1563 lpfc_els_abort(phba, ndlp); 1564 1565 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1566 return ndlp->nlp_state; 1567 } 1568 1569 static uint32_t 1570 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1571 struct lpfc_nodelist *ndlp, 1572 void *arg, uint32_t evt) 1573 { 1574 struct lpfc_iocbq *cmdiocb; 1575 1576 cmdiocb = (struct lpfc_iocbq *) arg; 1577 1578 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1579 return ndlp->nlp_state; 1580 } 1581 1582 static uint32_t 1583 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1584 void *arg, uint32_t evt) 1585 { 1586 struct lpfc_iocbq *cmdiocb; 1587 1588 cmdiocb = (struct lpfc_iocbq *) arg; 1589 1590 /* Treat like rcv logo */ 1591 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1592 return ndlp->nlp_state; 1593 } 1594 1595 static uint32_t 1596 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1597 struct lpfc_nodelist *ndlp, 1598 void *arg, uint32_t evt) 1599 { 1600 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1601 struct lpfc_hba *phba = vport->phba; 1602 struct lpfc_iocbq *cmdiocb, *rspiocb; 1603 IOCB_t *irsp; 1604 ADISC *ap; 1605 int rc; 1606 1607 cmdiocb = (struct lpfc_iocbq *) arg; 1608 rspiocb = cmdiocb->context_un.rsp_iocb; 1609 1610 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1611 irsp = &rspiocb->iocb; 1612 1613 if ((irsp->ulpStatus) || 1614 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1615 /* 1 sec timeout */ 1616 mod_timer(&ndlp->nlp_delayfunc, 1617 jiffies + msecs_to_jiffies(1000)); 1618 spin_lock_irq(shost->host_lock); 1619 ndlp->nlp_flag |= NLP_DELAY_TMO; 1620 spin_unlock_irq(shost->host_lock); 1621 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1622 1623 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name)); 1624 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name)); 1625 1626 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1627 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1628 lpfc_unreg_rpi(vport, ndlp); 1629 return ndlp->nlp_state; 1630 } 1631 1632 if (phba->sli_rev == LPFC_SLI_REV4) { 1633 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1634 if (rc) { 1635 /* Stay in state and retry. */ 1636 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1637 return ndlp->nlp_state; 1638 } 1639 } 1640 1641 if (ndlp->nlp_type & NLP_FCP_TARGET) { 1642 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1643 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1644 } else { 1645 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1646 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1647 } 1648 1649 return ndlp->nlp_state; 1650 } 1651 1652 static uint32_t 1653 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1654 void *arg, uint32_t evt) 1655 { 1656 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1657 1658 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1659 spin_lock_irq(shost->host_lock); 1660 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1661 spin_unlock_irq(shost->host_lock); 1662 return ndlp->nlp_state; 1663 } else { 1664 /* software abort outstanding ADISC */ 1665 lpfc_els_abort(vport->phba, ndlp); 1666 1667 lpfc_drop_node(vport, ndlp); 1668 return NLP_STE_FREED_NODE; 1669 } 1670 } 1671 1672 static uint32_t 1673 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1674 struct lpfc_nodelist *ndlp, 1675 void *arg, 1676 uint32_t evt) 1677 { 1678 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1679 struct lpfc_hba *phba = vport->phba; 1680 1681 /* Don't do anything that will mess up processing of the 1682 * previous RSCN. 1683 */ 1684 if (vport->fc_flag & FC_RSCN_DEFERRED) 1685 return ndlp->nlp_state; 1686 1687 /* software abort outstanding ADISC */ 1688 lpfc_els_abort(phba, ndlp); 1689 1690 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1691 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1692 spin_lock_irq(shost->host_lock); 1693 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1694 spin_unlock_irq(shost->host_lock); 1695 lpfc_disc_set_adisc(vport, ndlp); 1696 return ndlp->nlp_state; 1697 } 1698 1699 static uint32_t 1700 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1701 struct lpfc_nodelist *ndlp, 1702 void *arg, 1703 uint32_t evt) 1704 { 1705 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1706 1707 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1708 return ndlp->nlp_state; 1709 } 1710 1711 static uint32_t 1712 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1713 struct lpfc_nodelist *ndlp, 1714 void *arg, 1715 uint32_t evt) 1716 { 1717 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1718 struct ls_rjt stat; 1719 1720 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1721 return ndlp->nlp_state; 1722 } 1723 if (vport->phba->nvmet_support) { 1724 /* NVME Target mode. Handle and respond to the PRLI and 1725 * transition to UNMAPPED provided the RPI has completed 1726 * registration. 1727 */ 1728 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 1729 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1730 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1731 } else { 1732 /* RPI registration has not completed. Reject the PRLI 1733 * to prevent an illegal state transition when the 1734 * rpi registration does complete. 1735 */ 1736 memset(&stat, 0, sizeof(struct ls_rjt)); 1737 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1738 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1739 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1740 ndlp, NULL); 1741 return ndlp->nlp_state; 1742 } 1743 } else { 1744 /* Initiator mode. */ 1745 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1746 } 1747 return ndlp->nlp_state; 1748 } 1749 1750 static uint32_t 1751 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1752 struct lpfc_nodelist *ndlp, 1753 void *arg, 1754 uint32_t evt) 1755 { 1756 struct lpfc_hba *phba = vport->phba; 1757 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1758 LPFC_MBOXQ_t *mb; 1759 LPFC_MBOXQ_t *nextmb; 1760 struct lpfc_dmabuf *mp; 1761 struct lpfc_nodelist *ns_ndlp; 1762 1763 cmdiocb = (struct lpfc_iocbq *) arg; 1764 1765 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1766 if ((mb = phba->sli.mbox_active)) { 1767 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1768 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1769 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1770 lpfc_nlp_put(ndlp); 1771 mb->ctx_ndlp = NULL; 1772 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1773 } 1774 } 1775 1776 spin_lock_irq(&phba->hbalock); 1777 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1778 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1779 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1780 mp = (struct lpfc_dmabuf *)(mb->ctx_buf); 1781 if (mp) { 1782 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 1783 kfree(mp); 1784 } 1785 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1786 lpfc_nlp_put(ndlp); 1787 list_del(&mb->list); 1788 phba->sli.mboxq_cnt--; 1789 mempool_free(mb, phba->mbox_mem_pool); 1790 } 1791 } 1792 spin_unlock_irq(&phba->hbalock); 1793 1794 /* software abort if any GID_FT is outstanding */ 1795 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 1796 ns_ndlp = lpfc_findnode_did(vport, NameServer_DID); 1797 if (ns_ndlp && NLP_CHK_NODE_ACT(ns_ndlp)) 1798 lpfc_els_abort(phba, ns_ndlp); 1799 } 1800 1801 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1802 return ndlp->nlp_state; 1803 } 1804 1805 static uint32_t 1806 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1807 struct lpfc_nodelist *ndlp, 1808 void *arg, 1809 uint32_t evt) 1810 { 1811 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1812 1813 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1814 return ndlp->nlp_state; 1815 } 1816 1817 static uint32_t 1818 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1819 struct lpfc_nodelist *ndlp, 1820 void *arg, 1821 uint32_t evt) 1822 { 1823 struct lpfc_iocbq *cmdiocb; 1824 1825 cmdiocb = (struct lpfc_iocbq *) arg; 1826 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1827 return ndlp->nlp_state; 1828 } 1829 1830 static uint32_t 1831 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1832 struct lpfc_nodelist *ndlp, 1833 void *arg, 1834 uint32_t evt) 1835 { 1836 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1837 struct lpfc_hba *phba = vport->phba; 1838 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1839 MAILBOX_t *mb = &pmb->u.mb; 1840 uint32_t did = mb->un.varWords[1]; 1841 1842 if (mb->mbxStatus) { 1843 /* RegLogin failed */ 1844 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1845 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1846 "x%x\n", 1847 did, mb->mbxStatus, vport->port_state, 1848 mb->un.varRegLogin.vpi, 1849 mb->un.varRegLogin.rpi); 1850 /* 1851 * If RegLogin failed due to lack of HBA resources do not 1852 * retry discovery. 1853 */ 1854 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1855 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1856 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1857 return ndlp->nlp_state; 1858 } 1859 1860 /* Put ndlp in npr state set plogi timer for 1 sec */ 1861 mod_timer(&ndlp->nlp_delayfunc, 1862 jiffies + msecs_to_jiffies(1000 * 1)); 1863 spin_lock_irq(shost->host_lock); 1864 ndlp->nlp_flag |= NLP_DELAY_TMO; 1865 spin_unlock_irq(shost->host_lock); 1866 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1867 1868 lpfc_issue_els_logo(vport, ndlp, 0); 1869 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1870 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1871 return ndlp->nlp_state; 1872 } 1873 1874 /* SLI4 ports have preallocated logical rpis. */ 1875 if (phba->sli_rev < LPFC_SLI_REV4) 1876 ndlp->nlp_rpi = mb->un.varWords[0]; 1877 1878 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1879 1880 /* Only if we are not a fabric nport do we issue PRLI */ 1881 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1882 "3066 RegLogin Complete on x%x x%x x%x\n", 1883 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 1884 if (!(ndlp->nlp_type & NLP_FABRIC) && 1885 (phba->nvmet_support == 0)) { 1886 /* The driver supports FCP and NVME concurrently. If the 1887 * ndlp's nlp_fc4_type is still zero, the driver doesn't 1888 * know what PRLI to send yet. Figure that out now and 1889 * call PRLI depending on the outcome. 1890 */ 1891 if (vport->fc_flag & FC_PT2PT) { 1892 /* If we are pt2pt, there is no Fabric to determine 1893 * the FC4 type of the remote nport. So if NVME 1894 * is configured try it. 1895 */ 1896 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1897 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 1898 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1899 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1900 /* We need to update the localport also */ 1901 lpfc_nvme_update_localport(vport); 1902 } 1903 1904 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 1905 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1906 1907 } else if (ndlp->nlp_fc4_type == 0) { 1908 /* If we are only configured for FCP, the driver 1909 * should just issue PRLI for FCP. Otherwise issue 1910 * GFT_ID to determine if remote port supports NVME. 1911 */ 1912 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 1913 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0, 1914 ndlp->nlp_DID); 1915 return ndlp->nlp_state; 1916 } 1917 ndlp->nlp_fc4_type = NLP_FC4_FCP; 1918 } 1919 1920 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1921 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 1922 if (lpfc_issue_els_prli(vport, ndlp, 0)) { 1923 lpfc_issue_els_logo(vport, ndlp, 0); 1924 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1925 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1926 } 1927 } else { 1928 if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support) 1929 phba->targetport->port_id = vport->fc_myDID; 1930 1931 /* Only Fabric ports should transition. NVME target 1932 * must complete PRLI. 1933 */ 1934 if (ndlp->nlp_type & NLP_FABRIC) { 1935 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1936 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1937 } 1938 } 1939 return ndlp->nlp_state; 1940 } 1941 1942 static uint32_t 1943 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 1944 struct lpfc_nodelist *ndlp, 1945 void *arg, 1946 uint32_t evt) 1947 { 1948 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1949 1950 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1951 spin_lock_irq(shost->host_lock); 1952 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1953 spin_unlock_irq(shost->host_lock); 1954 return ndlp->nlp_state; 1955 } else { 1956 lpfc_drop_node(vport, ndlp); 1957 return NLP_STE_FREED_NODE; 1958 } 1959 } 1960 1961 static uint32_t 1962 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 1963 struct lpfc_nodelist *ndlp, 1964 void *arg, 1965 uint32_t evt) 1966 { 1967 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1968 1969 /* Don't do anything that will mess up processing of the 1970 * previous RSCN. 1971 */ 1972 if (vport->fc_flag & FC_RSCN_DEFERRED) 1973 return ndlp->nlp_state; 1974 1975 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1976 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1977 spin_lock_irq(shost->host_lock); 1978 1979 /* If we are a target we won't immediately transition into PRLI, 1980 * so if REG_LOGIN already completed we don't need to ignore it. 1981 */ 1982 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) || 1983 !vport->phba->nvmet_support) 1984 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 1985 1986 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1987 spin_unlock_irq(shost->host_lock); 1988 lpfc_disc_set_adisc(vport, ndlp); 1989 return ndlp->nlp_state; 1990 } 1991 1992 static uint32_t 1993 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1994 void *arg, uint32_t evt) 1995 { 1996 struct lpfc_iocbq *cmdiocb; 1997 1998 cmdiocb = (struct lpfc_iocbq *) arg; 1999 2000 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2001 return ndlp->nlp_state; 2002 } 2003 2004 static uint32_t 2005 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2006 void *arg, uint32_t evt) 2007 { 2008 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2009 2010 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2011 return ndlp->nlp_state; 2012 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2013 return ndlp->nlp_state; 2014 } 2015 2016 static uint32_t 2017 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2018 void *arg, uint32_t evt) 2019 { 2020 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2021 2022 /* Software abort outstanding PRLI before sending acc */ 2023 lpfc_els_abort(vport->phba, ndlp); 2024 2025 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2026 return ndlp->nlp_state; 2027 } 2028 2029 static uint32_t 2030 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2031 void *arg, uint32_t evt) 2032 { 2033 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2034 2035 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2036 return ndlp->nlp_state; 2037 } 2038 2039 /* This routine is envoked when we rcv a PRLO request from a nport 2040 * we are logged into. We should send back a PRLO rsp setting the 2041 * appropriate bits. 2042 * NEXT STATE = PRLI_ISSUE 2043 */ 2044 static uint32_t 2045 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2046 void *arg, uint32_t evt) 2047 { 2048 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2049 2050 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2051 return ndlp->nlp_state; 2052 } 2053 2054 static uint32_t 2055 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2056 void *arg, uint32_t evt) 2057 { 2058 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2059 struct lpfc_iocbq *cmdiocb, *rspiocb; 2060 struct lpfc_hba *phba = vport->phba; 2061 IOCB_t *irsp; 2062 PRLI *npr; 2063 struct lpfc_nvme_prli *nvpr; 2064 void *temp_ptr; 2065 2066 cmdiocb = (struct lpfc_iocbq *) arg; 2067 rspiocb = cmdiocb->context_un.rsp_iocb; 2068 2069 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 2070 * format is different so NULL the two PRLI types so that the 2071 * driver correctly gets the correct context. 2072 */ 2073 npr = NULL; 2074 nvpr = NULL; 2075 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 2076 if (cmdiocb->iocb_flag & LPFC_PRLI_FCP_REQ) 2077 npr = (PRLI *) temp_ptr; 2078 else if (cmdiocb->iocb_flag & LPFC_PRLI_NVME_REQ) 2079 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 2080 2081 irsp = &rspiocb->iocb; 2082 if (irsp->ulpStatus) { 2083 if ((vport->port_type == LPFC_NPIV_PORT) && 2084 vport->cfg_restrict_login) { 2085 goto out; 2086 } 2087 2088 /* Adjust the nlp_type accordingly if the PRLI failed */ 2089 if (npr) 2090 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2091 if (nvpr) 2092 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 2093 2094 /* We can't set the DSM state till BOTH PRLIs complete */ 2095 goto out_err; 2096 } 2097 2098 if (npr && (npr->acceptRspCode == PRLI_REQ_EXECUTED) && 2099 (npr->prliType == PRLI_FCP_TYPE)) { 2100 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2101 "6028 FCP NPR PRLI Cmpl Init %d Target %d\n", 2102 npr->initiatorFunc, 2103 npr->targetFunc); 2104 if (npr->initiatorFunc) 2105 ndlp->nlp_type |= NLP_FCP_INITIATOR; 2106 if (npr->targetFunc) { 2107 ndlp->nlp_type |= NLP_FCP_TARGET; 2108 if (npr->writeXferRdyDis) 2109 ndlp->nlp_flag |= NLP_FIRSTBURST; 2110 } 2111 if (npr->Retry) 2112 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 2113 2114 } else if (nvpr && 2115 (bf_get_be32(prli_acc_rsp_code, nvpr) == 2116 PRLI_REQ_EXECUTED) && 2117 (bf_get_be32(prli_type_code, nvpr) == 2118 PRLI_NVME_TYPE)) { 2119 2120 /* Complete setting up the remote ndlp personality. */ 2121 if (bf_get_be32(prli_init, nvpr)) 2122 ndlp->nlp_type |= NLP_NVME_INITIATOR; 2123 2124 if (phba->nsler && bf_get_be32(prli_nsler, nvpr) && 2125 bf_get_be32(prli_conf, nvpr)) 2126 2127 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 2128 else 2129 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 2130 2131 /* Target driver cannot solicit NVME FB. */ 2132 if (bf_get_be32(prli_tgt, nvpr)) { 2133 /* Complete the nvme target roles. The transport 2134 * needs to know if the rport is capable of 2135 * discovery in addition to its role. 2136 */ 2137 ndlp->nlp_type |= NLP_NVME_TARGET; 2138 if (bf_get_be32(prli_disc, nvpr)) 2139 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 2140 2141 /* 2142 * If prli_fba is set, the Target supports FirstBurst. 2143 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 2144 * otherwise it defines the actual size supported by 2145 * the NVME Target. 2146 */ 2147 if ((bf_get_be32(prli_fba, nvpr) == 1) && 2148 (phba->cfg_nvme_enable_fb) && 2149 (!phba->nvmet_support)) { 2150 /* Both sides support FB. The target's first 2151 * burst size is a 512 byte encoded value. 2152 */ 2153 ndlp->nlp_flag |= NLP_FIRSTBURST; 2154 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2155 nvpr); 2156 2157 /* Expressed in units of 512 bytes */ 2158 if (ndlp->nvme_fb_size) 2159 ndlp->nvme_fb_size <<= 2160 LPFC_NVME_FB_SHIFT; 2161 else 2162 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2163 } 2164 } 2165 2166 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2167 "6029 NVME PRLI Cmpl w1 x%08x " 2168 "w4 x%08x w5 x%08x flag x%x, " 2169 "fcp_info x%x nlp_type x%x\n", 2170 be32_to_cpu(nvpr->word1), 2171 be32_to_cpu(nvpr->word4), 2172 be32_to_cpu(nvpr->word5), 2173 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2174 ndlp->nlp_type); 2175 } 2176 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2177 (vport->port_type == LPFC_NPIV_PORT) && 2178 vport->cfg_restrict_login) { 2179 out: 2180 spin_lock_irq(shost->host_lock); 2181 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 2182 spin_unlock_irq(shost->host_lock); 2183 lpfc_issue_els_logo(vport, ndlp, 0); 2184 2185 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2186 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2187 return ndlp->nlp_state; 2188 } 2189 2190 out_err: 2191 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2192 * are complete. 2193 */ 2194 if (ndlp->fc4_prli_sent == 0) { 2195 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2196 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2197 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2198 else if (ndlp->nlp_type & 2199 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2200 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2201 } else 2202 lpfc_printf_vlog(vport, 2203 KERN_INFO, LOG_ELS, 2204 "3067 PRLI's still outstanding " 2205 "on x%06x - count %d, Pend Node Mode " 2206 "transition...\n", 2207 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2208 2209 return ndlp->nlp_state; 2210 } 2211 2212 /*! lpfc_device_rm_prli_issue 2213 * 2214 * \pre 2215 * \post 2216 * \param phba 2217 * \param ndlp 2218 * \param arg 2219 * \param evt 2220 * \return uint32_t 2221 * 2222 * \b Description: 2223 * This routine is envoked when we a request to remove a nport we are in the 2224 * process of PRLIing. We should software abort outstanding prli, unreg 2225 * login, send a logout. We will change node state to UNUSED_NODE, put it 2226 * on plogi list so it can be freed when LOGO completes. 2227 * 2228 */ 2229 2230 static uint32_t 2231 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2232 void *arg, uint32_t evt) 2233 { 2234 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2235 2236 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2237 spin_lock_irq(shost->host_lock); 2238 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2239 spin_unlock_irq(shost->host_lock); 2240 return ndlp->nlp_state; 2241 } else { 2242 /* software abort outstanding PLOGI */ 2243 lpfc_els_abort(vport->phba, ndlp); 2244 2245 lpfc_drop_node(vport, ndlp); 2246 return NLP_STE_FREED_NODE; 2247 } 2248 } 2249 2250 2251 /*! lpfc_device_recov_prli_issue 2252 * 2253 * \pre 2254 * \post 2255 * \param phba 2256 * \param ndlp 2257 * \param arg 2258 * \param evt 2259 * \return uint32_t 2260 * 2261 * \b Description: 2262 * The routine is envoked when the state of a device is unknown, like 2263 * during a link down. We should remove the nodelist entry from the 2264 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2265 * outstanding PRLI command, then free the node entry. 2266 */ 2267 static uint32_t 2268 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2269 struct lpfc_nodelist *ndlp, 2270 void *arg, 2271 uint32_t evt) 2272 { 2273 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2274 struct lpfc_hba *phba = vport->phba; 2275 2276 /* Don't do anything that will mess up processing of the 2277 * previous RSCN. 2278 */ 2279 if (vport->fc_flag & FC_RSCN_DEFERRED) 2280 return ndlp->nlp_state; 2281 2282 /* software abort outstanding PRLI */ 2283 lpfc_els_abort(phba, ndlp); 2284 2285 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2286 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2287 spin_lock_irq(shost->host_lock); 2288 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2289 spin_unlock_irq(shost->host_lock); 2290 lpfc_disc_set_adisc(vport, ndlp); 2291 return ndlp->nlp_state; 2292 } 2293 2294 static uint32_t 2295 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2296 void *arg, uint32_t evt) 2297 { 2298 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2299 struct ls_rjt stat; 2300 2301 memset(&stat, 0, sizeof(struct ls_rjt)); 2302 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2303 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2304 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2305 return ndlp->nlp_state; 2306 } 2307 2308 static uint32_t 2309 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2310 void *arg, uint32_t evt) 2311 { 2312 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2313 struct ls_rjt stat; 2314 2315 memset(&stat, 0, sizeof(struct ls_rjt)); 2316 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2317 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2318 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2319 return ndlp->nlp_state; 2320 } 2321 2322 static uint32_t 2323 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2324 void *arg, uint32_t evt) 2325 { 2326 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2327 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2328 2329 spin_lock_irq(shost->host_lock); 2330 ndlp->nlp_flag |= NLP_LOGO_ACC; 2331 spin_unlock_irq(shost->host_lock); 2332 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2333 return ndlp->nlp_state; 2334 } 2335 2336 static uint32_t 2337 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2338 void *arg, uint32_t evt) 2339 { 2340 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2341 struct ls_rjt stat; 2342 2343 memset(&stat, 0, sizeof(struct ls_rjt)); 2344 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2345 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2346 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2347 return ndlp->nlp_state; 2348 } 2349 2350 static uint32_t 2351 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2352 void *arg, uint32_t evt) 2353 { 2354 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2355 struct ls_rjt stat; 2356 2357 memset(&stat, 0, sizeof(struct ls_rjt)); 2358 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2359 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2360 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2361 return ndlp->nlp_state; 2362 } 2363 2364 static uint32_t 2365 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2366 void *arg, uint32_t evt) 2367 { 2368 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2369 2370 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2371 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2372 spin_lock_irq(shost->host_lock); 2373 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2374 spin_unlock_irq(shost->host_lock); 2375 lpfc_disc_set_adisc(vport, ndlp); 2376 return ndlp->nlp_state; 2377 } 2378 2379 static uint32_t 2380 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2381 void *arg, uint32_t evt) 2382 { 2383 /* 2384 * DevLoss has timed out and is calling for Device Remove. 2385 * In this case, abort the LOGO and cleanup the ndlp 2386 */ 2387 2388 lpfc_unreg_rpi(vport, ndlp); 2389 /* software abort outstanding PLOGI */ 2390 lpfc_els_abort(vport->phba, ndlp); 2391 lpfc_drop_node(vport, ndlp); 2392 return NLP_STE_FREED_NODE; 2393 } 2394 2395 static uint32_t 2396 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2397 struct lpfc_nodelist *ndlp, 2398 void *arg, uint32_t evt) 2399 { 2400 /* 2401 * Device Recovery events have no meaning for a node with a LOGO 2402 * outstanding. The LOGO has to complete first and handle the 2403 * node from that point. 2404 */ 2405 return ndlp->nlp_state; 2406 } 2407 2408 static uint32_t 2409 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2410 void *arg, uint32_t evt) 2411 { 2412 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2413 2414 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2415 return ndlp->nlp_state; 2416 } 2417 2418 static uint32_t 2419 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2420 void *arg, uint32_t evt) 2421 { 2422 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2423 2424 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2425 return ndlp->nlp_state; 2426 2427 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2428 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2429 return ndlp->nlp_state; 2430 } 2431 2432 static uint32_t 2433 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2434 void *arg, uint32_t evt) 2435 { 2436 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2437 2438 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2439 return ndlp->nlp_state; 2440 } 2441 2442 static uint32_t 2443 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2444 void *arg, uint32_t evt) 2445 { 2446 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2447 2448 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2449 return ndlp->nlp_state; 2450 } 2451 2452 static uint32_t 2453 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2454 void *arg, uint32_t evt) 2455 { 2456 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2457 2458 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2459 return ndlp->nlp_state; 2460 } 2461 2462 static uint32_t 2463 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2464 struct lpfc_nodelist *ndlp, 2465 void *arg, 2466 uint32_t evt) 2467 { 2468 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2469 2470 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2471 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2472 spin_lock_irq(shost->host_lock); 2473 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2474 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2475 spin_unlock_irq(shost->host_lock); 2476 lpfc_disc_set_adisc(vport, ndlp); 2477 2478 return ndlp->nlp_state; 2479 } 2480 2481 static uint32_t 2482 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2483 void *arg, uint32_t evt) 2484 { 2485 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2486 2487 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2488 return ndlp->nlp_state; 2489 } 2490 2491 static uint32_t 2492 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2493 void *arg, uint32_t evt) 2494 { 2495 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2496 2497 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2498 return ndlp->nlp_state; 2499 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2500 return ndlp->nlp_state; 2501 } 2502 2503 static uint32_t 2504 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2505 void *arg, uint32_t evt) 2506 { 2507 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2508 2509 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2510 return ndlp->nlp_state; 2511 } 2512 2513 static uint32_t 2514 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2515 struct lpfc_nodelist *ndlp, 2516 void *arg, uint32_t evt) 2517 { 2518 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2519 2520 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2521 return ndlp->nlp_state; 2522 } 2523 2524 static uint32_t 2525 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2526 void *arg, uint32_t evt) 2527 { 2528 struct lpfc_hba *phba = vport->phba; 2529 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2530 2531 /* flush the target */ 2532 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], 2533 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2534 2535 /* Treat like rcv logo */ 2536 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2537 return ndlp->nlp_state; 2538 } 2539 2540 static uint32_t 2541 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2542 struct lpfc_nodelist *ndlp, 2543 void *arg, 2544 uint32_t evt) 2545 { 2546 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2547 2548 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2549 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2550 spin_lock_irq(shost->host_lock); 2551 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2552 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2553 spin_unlock_irq(shost->host_lock); 2554 lpfc_disc_set_adisc(vport, ndlp); 2555 return ndlp->nlp_state; 2556 } 2557 2558 static uint32_t 2559 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2560 void *arg, uint32_t evt) 2561 { 2562 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2563 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2564 2565 /* Ignore PLOGI if we have an outstanding LOGO */ 2566 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2567 return ndlp->nlp_state; 2568 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2569 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2570 spin_lock_irq(shost->host_lock); 2571 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2572 spin_unlock_irq(shost->host_lock); 2573 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2574 /* send PLOGI immediately, move to PLOGI issue state */ 2575 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2576 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2577 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2578 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2579 } 2580 } 2581 return ndlp->nlp_state; 2582 } 2583 2584 static uint32_t 2585 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2586 void *arg, uint32_t evt) 2587 { 2588 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2589 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2590 struct ls_rjt stat; 2591 2592 memset(&stat, 0, sizeof (struct ls_rjt)); 2593 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2594 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2595 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2596 2597 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2598 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2599 spin_lock_irq(shost->host_lock); 2600 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2601 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2602 spin_unlock_irq(shost->host_lock); 2603 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2604 lpfc_issue_els_adisc(vport, ndlp, 0); 2605 } else { 2606 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2607 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2608 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2609 } 2610 } 2611 return ndlp->nlp_state; 2612 } 2613 2614 static uint32_t 2615 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2616 void *arg, uint32_t evt) 2617 { 2618 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2619 2620 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2621 return ndlp->nlp_state; 2622 } 2623 2624 static uint32_t 2625 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2626 void *arg, uint32_t evt) 2627 { 2628 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2629 2630 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2631 /* 2632 * Do not start discovery if discovery is about to start 2633 * or discovery in progress for this node. Starting discovery 2634 * here will affect the counting of discovery threads. 2635 */ 2636 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2637 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2638 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2639 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2640 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2641 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2642 lpfc_issue_els_adisc(vport, ndlp, 0); 2643 } else { 2644 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2645 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2646 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2647 } 2648 } 2649 return ndlp->nlp_state; 2650 } 2651 2652 static uint32_t 2653 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2654 void *arg, uint32_t evt) 2655 { 2656 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2657 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2658 2659 spin_lock_irq(shost->host_lock); 2660 ndlp->nlp_flag |= NLP_LOGO_ACC; 2661 spin_unlock_irq(shost->host_lock); 2662 2663 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2664 2665 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2666 mod_timer(&ndlp->nlp_delayfunc, 2667 jiffies + msecs_to_jiffies(1000 * 1)); 2668 spin_lock_irq(shost->host_lock); 2669 ndlp->nlp_flag |= NLP_DELAY_TMO; 2670 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2671 spin_unlock_irq(shost->host_lock); 2672 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2673 } else { 2674 spin_lock_irq(shost->host_lock); 2675 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2676 spin_unlock_irq(shost->host_lock); 2677 } 2678 return ndlp->nlp_state; 2679 } 2680 2681 static uint32_t 2682 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2683 void *arg, uint32_t evt) 2684 { 2685 struct lpfc_iocbq *cmdiocb, *rspiocb; 2686 IOCB_t *irsp; 2687 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2688 2689 cmdiocb = (struct lpfc_iocbq *) arg; 2690 rspiocb = cmdiocb->context_un.rsp_iocb; 2691 2692 irsp = &rspiocb->iocb; 2693 if (irsp->ulpStatus) { 2694 spin_lock_irq(shost->host_lock); 2695 ndlp->nlp_flag |= NLP_DEFER_RM; 2696 spin_unlock_irq(shost->host_lock); 2697 return NLP_STE_FREED_NODE; 2698 } 2699 return ndlp->nlp_state; 2700 } 2701 2702 static uint32_t 2703 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2704 void *arg, uint32_t evt) 2705 { 2706 struct lpfc_iocbq *cmdiocb, *rspiocb; 2707 IOCB_t *irsp; 2708 2709 cmdiocb = (struct lpfc_iocbq *) arg; 2710 rspiocb = cmdiocb->context_un.rsp_iocb; 2711 2712 irsp = &rspiocb->iocb; 2713 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2714 lpfc_drop_node(vport, ndlp); 2715 return NLP_STE_FREED_NODE; 2716 } 2717 return ndlp->nlp_state; 2718 } 2719 2720 static uint32_t 2721 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2722 void *arg, uint32_t evt) 2723 { 2724 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2725 2726 /* For the fabric port just clear the fc flags. */ 2727 if (ndlp->nlp_DID == Fabric_DID) { 2728 spin_lock_irq(shost->host_lock); 2729 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2730 spin_unlock_irq(shost->host_lock); 2731 } 2732 lpfc_unreg_rpi(vport, ndlp); 2733 return ndlp->nlp_state; 2734 } 2735 2736 static uint32_t 2737 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2738 void *arg, uint32_t evt) 2739 { 2740 struct lpfc_iocbq *cmdiocb, *rspiocb; 2741 IOCB_t *irsp; 2742 2743 cmdiocb = (struct lpfc_iocbq *) arg; 2744 rspiocb = cmdiocb->context_un.rsp_iocb; 2745 2746 irsp = &rspiocb->iocb; 2747 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2748 lpfc_drop_node(vport, ndlp); 2749 return NLP_STE_FREED_NODE; 2750 } 2751 return ndlp->nlp_state; 2752 } 2753 2754 static uint32_t 2755 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2756 struct lpfc_nodelist *ndlp, 2757 void *arg, uint32_t evt) 2758 { 2759 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2760 MAILBOX_t *mb = &pmb->u.mb; 2761 2762 if (!mb->mbxStatus) { 2763 /* SLI4 ports have preallocated logical rpis. */ 2764 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2765 ndlp->nlp_rpi = mb->un.varWords[0]; 2766 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2767 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 2768 lpfc_unreg_rpi(vport, ndlp); 2769 } 2770 } else { 2771 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2772 lpfc_drop_node(vport, ndlp); 2773 return NLP_STE_FREED_NODE; 2774 } 2775 } 2776 return ndlp->nlp_state; 2777 } 2778 2779 static uint32_t 2780 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2781 void *arg, uint32_t evt) 2782 { 2783 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2784 2785 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2786 spin_lock_irq(shost->host_lock); 2787 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2788 spin_unlock_irq(shost->host_lock); 2789 return ndlp->nlp_state; 2790 } 2791 lpfc_drop_node(vport, ndlp); 2792 return NLP_STE_FREED_NODE; 2793 } 2794 2795 static uint32_t 2796 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2797 void *arg, uint32_t evt) 2798 { 2799 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2800 2801 /* Don't do anything that will mess up processing of the 2802 * previous RSCN. 2803 */ 2804 if (vport->fc_flag & FC_RSCN_DEFERRED) 2805 return ndlp->nlp_state; 2806 2807 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2808 spin_lock_irq(shost->host_lock); 2809 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2810 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2811 spin_unlock_irq(shost->host_lock); 2812 return ndlp->nlp_state; 2813 } 2814 2815 2816 /* This next section defines the NPort Discovery State Machine */ 2817 2818 /* There are 4 different double linked lists nodelist entries can reside on. 2819 * The plogi list and adisc list are used when Link Up discovery or RSCN 2820 * processing is needed. Each list holds the nodes that we will send PLOGI 2821 * or ADISC on. These lists will keep track of what nodes will be effected 2822 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2823 * The unmapped_list will contain all nodes that we have successfully logged 2824 * into at the Fibre Channel level. The mapped_list will contain all nodes 2825 * that are mapped FCP targets. 2826 */ 2827 /* 2828 * The bind list is a list of undiscovered (potentially non-existent) nodes 2829 * that we have saved binding information on. This information is used when 2830 * nodes transition from the unmapped to the mapped list. 2831 */ 2832 /* For UNUSED_NODE state, the node has just been allocated . 2833 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2834 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2835 * and put on the unmapped list. For ADISC processing, the node is taken off 2836 * the ADISC list and placed on either the mapped or unmapped list (depending 2837 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2838 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2839 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2840 * node, the node is taken off the unmapped list. The binding list is checked 2841 * for a valid binding, or a binding is automatically assigned. If binding 2842 * assignment is unsuccessful, the node is left on the unmapped list. If 2843 * binding assignment is successful, the associated binding list entry (if 2844 * any) is removed, and the node is placed on the mapped list. 2845 */ 2846 /* 2847 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2848 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2849 * expire, all effected nodes will receive a DEVICE_RM event. 2850 */ 2851 /* 2852 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2853 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2854 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2855 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2856 * we will first process the ADISC list. 32 entries are processed initially and 2857 * ADISC is initited for each one. Completions / Events for each node are 2858 * funnelled thru the state machine. As each node finishes ADISC processing, it 2859 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2860 * waiting, and the ADISC list count is identically 0, then we are done. For 2861 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2862 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2863 * list. 32 entries are processed initially and PLOGI is initited for each one. 2864 * Completions / Events for each node are funnelled thru the state machine. As 2865 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2866 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2867 * indentically 0, then we are done. We have now completed discovery / RSCN 2868 * handling. Upon completion, ALL nodes should be on either the mapped or 2869 * unmapped lists. 2870 */ 2871 2872 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2873 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2874 /* Action routine Event Current State */ 2875 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2876 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2877 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2878 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2879 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2880 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2881 lpfc_disc_illegal, /* CMPL_PLOGI */ 2882 lpfc_disc_illegal, /* CMPL_PRLI */ 2883 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2884 lpfc_disc_illegal, /* CMPL_ADISC */ 2885 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2886 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2887 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2888 2889 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2890 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2891 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2892 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2893 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2894 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2895 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2896 lpfc_disc_illegal, /* CMPL_PRLI */ 2897 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2898 lpfc_disc_illegal, /* CMPL_ADISC */ 2899 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2900 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2901 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2902 2903 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2904 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 2905 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 2906 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 2907 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 2908 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 2909 lpfc_disc_illegal, /* CMPL_PLOGI */ 2910 lpfc_disc_illegal, /* CMPL_PRLI */ 2911 lpfc_disc_illegal, /* CMPL_LOGO */ 2912 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 2913 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2914 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 2915 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 2916 2917 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 2918 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 2919 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 2920 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 2921 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 2922 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 2923 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2924 lpfc_disc_illegal, /* CMPL_PRLI */ 2925 lpfc_disc_illegal, /* CMPL_LOGO */ 2926 lpfc_disc_illegal, /* CMPL_ADISC */ 2927 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 2928 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 2929 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 2930 2931 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 2932 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 2933 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 2934 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 2935 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 2936 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 2937 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2938 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 2939 lpfc_disc_illegal, /* CMPL_LOGO */ 2940 lpfc_disc_illegal, /* CMPL_ADISC */ 2941 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2942 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 2943 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 2944 2945 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 2946 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 2947 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 2948 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 2949 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 2950 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 2951 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2952 lpfc_disc_illegal, /* CMPL_PRLI */ 2953 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 2954 lpfc_disc_illegal, /* CMPL_ADISC */ 2955 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2956 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 2957 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 2958 2959 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 2960 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 2961 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 2962 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 2963 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 2964 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 2965 lpfc_disc_illegal, /* CMPL_PLOGI */ 2966 lpfc_disc_illegal, /* CMPL_PRLI */ 2967 lpfc_disc_illegal, /* CMPL_LOGO */ 2968 lpfc_disc_illegal, /* CMPL_ADISC */ 2969 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2970 lpfc_disc_illegal, /* DEVICE_RM */ 2971 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 2972 2973 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 2974 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 2975 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 2976 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 2977 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 2978 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 2979 lpfc_disc_illegal, /* CMPL_PLOGI */ 2980 lpfc_disc_illegal, /* CMPL_PRLI */ 2981 lpfc_disc_illegal, /* CMPL_LOGO */ 2982 lpfc_disc_illegal, /* CMPL_ADISC */ 2983 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2984 lpfc_disc_illegal, /* DEVICE_RM */ 2985 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 2986 2987 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 2988 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 2989 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 2990 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 2991 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 2992 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 2993 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 2994 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 2995 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 2996 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 2997 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 2998 lpfc_device_rm_npr_node, /* DEVICE_RM */ 2999 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 3000 }; 3001 3002 int 3003 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3004 void *arg, uint32_t evt) 3005 { 3006 uint32_t cur_state, rc; 3007 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 3008 uint32_t); 3009 uint32_t got_ndlp = 0; 3010 uint32_t data1; 3011 3012 if (lpfc_nlp_get(ndlp)) 3013 got_ndlp = 1; 3014 3015 cur_state = ndlp->nlp_state; 3016 3017 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3018 ((uint32_t)ndlp->nlp_type)); 3019 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 3020 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3021 "0211 DSM in event x%x on NPort x%x in " 3022 "state %d rpi x%x Data: x%x x%x\n", 3023 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, 3024 ndlp->nlp_flag, data1); 3025 3026 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3027 "DSM in: evt:%d ste:%d did:x%x", 3028 evt, cur_state, ndlp->nlp_DID); 3029 3030 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 3031 rc = (func) (vport, ndlp, arg, evt); 3032 3033 /* DSM out state <rc> on NPort <nlp_DID> */ 3034 if (got_ndlp) { 3035 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3036 ((uint32_t)ndlp->nlp_type)); 3037 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3038 "0212 DSM out state %d on NPort x%x " 3039 "rpi x%x Data: x%x x%x\n", 3040 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag, 3041 data1); 3042 3043 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3044 "DSM out: ste:%d did:x%x flg:x%x", 3045 rc, ndlp->nlp_DID, ndlp->nlp_flag); 3046 /* Decrement the ndlp reference count held for this function */ 3047 lpfc_nlp_put(ndlp); 3048 } else { 3049 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3050 "0213 DSM out state %d on NPort free\n", rc); 3051 3052 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3053 "DSM out: ste:%d did:x%x flg:x%x", 3054 rc, 0, 0); 3055 } 3056 3057 return rc; 3058 } 3059