1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2022 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/pci.h> 26 #include <linux/slab.h> 27 #include <linux/interrupt.h> 28 29 #include <scsi/scsi.h> 30 #include <scsi/scsi_device.h> 31 #include <scsi/scsi_host.h> 32 #include <scsi/scsi_transport_fc.h> 33 #include <scsi/fc/fc_fs.h> 34 35 #include "lpfc_hw4.h" 36 #include "lpfc_hw.h" 37 #include "lpfc_sli.h" 38 #include "lpfc_sli4.h" 39 #include "lpfc_nl.h" 40 #include "lpfc_disc.h" 41 #include "lpfc.h" 42 #include "lpfc_scsi.h" 43 #include "lpfc_nvme.h" 44 #include "lpfc_logmsg.h" 45 #include "lpfc_crtn.h" 46 #include "lpfc_vport.h" 47 #include "lpfc_debugfs.h" 48 49 50 /* Called to verify a rcv'ed ADISC was intended for us. */ 51 static int 52 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 53 struct lpfc_name *nn, struct lpfc_name *pn) 54 { 55 /* First, we MUST have a RPI registered */ 56 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) 57 return 0; 58 59 /* Compare the ADISC rsp WWNN / WWPN matches our internal node 60 * table entry for that node. 61 */ 62 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) 63 return 0; 64 65 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) 66 return 0; 67 68 /* we match, return success */ 69 return 1; 70 } 71 72 int 73 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 74 struct serv_parm *sp, uint32_t class, int flogi) 75 { 76 volatile struct serv_parm *hsp = &vport->fc_sparam; 77 uint16_t hsp_value, ssp_value = 0; 78 79 /* 80 * The receive data field size and buffer-to-buffer receive data field 81 * size entries are 16 bits but are represented as two 8-bit fields in 82 * the driver data structure to account for rsvd bits and other control 83 * bits. Reconstruct and compare the fields as a 16-bit values before 84 * correcting the byte values. 85 */ 86 if (sp->cls1.classValid) { 87 if (!flogi) { 88 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) | 89 hsp->cls1.rcvDataSizeLsb); 90 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) | 91 sp->cls1.rcvDataSizeLsb); 92 if (!ssp_value) 93 goto bad_service_param; 94 if (ssp_value > hsp_value) { 95 sp->cls1.rcvDataSizeLsb = 96 hsp->cls1.rcvDataSizeLsb; 97 sp->cls1.rcvDataSizeMsb = 98 hsp->cls1.rcvDataSizeMsb; 99 } 100 } 101 } else if (class == CLASS1) 102 goto bad_service_param; 103 if (sp->cls2.classValid) { 104 if (!flogi) { 105 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) | 106 hsp->cls2.rcvDataSizeLsb); 107 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) | 108 sp->cls2.rcvDataSizeLsb); 109 if (!ssp_value) 110 goto bad_service_param; 111 if (ssp_value > hsp_value) { 112 sp->cls2.rcvDataSizeLsb = 113 hsp->cls2.rcvDataSizeLsb; 114 sp->cls2.rcvDataSizeMsb = 115 hsp->cls2.rcvDataSizeMsb; 116 } 117 } 118 } else if (class == CLASS2) 119 goto bad_service_param; 120 if (sp->cls3.classValid) { 121 if (!flogi) { 122 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) | 123 hsp->cls3.rcvDataSizeLsb); 124 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) | 125 sp->cls3.rcvDataSizeLsb); 126 if (!ssp_value) 127 goto bad_service_param; 128 if (ssp_value > hsp_value) { 129 sp->cls3.rcvDataSizeLsb = 130 hsp->cls3.rcvDataSizeLsb; 131 sp->cls3.rcvDataSizeMsb = 132 hsp->cls3.rcvDataSizeMsb; 133 } 134 } 135 } else if (class == CLASS3) 136 goto bad_service_param; 137 138 /* 139 * Preserve the upper four bits of the MSB from the PLOGI response. 140 * These bits contain the Buffer-to-Buffer State Change Number 141 * from the target and need to be passed to the FW. 142 */ 143 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; 144 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; 145 if (ssp_value > hsp_value) { 146 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; 147 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | 148 (hsp->cmn.bbRcvSizeMsb & 0x0F); 149 } 150 151 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); 152 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); 153 return 1; 154 bad_service_param: 155 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 156 "0207 Device %x " 157 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 158 "invalid service parameters. Ignoring device.\n", 159 ndlp->nlp_DID, 160 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 161 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 162 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 163 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 164 return 0; 165 } 166 167 static void * 168 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 169 struct lpfc_iocbq *rspiocb) 170 { 171 struct lpfc_dmabuf *pcmd, *prsp; 172 uint32_t *lp; 173 void *ptr = NULL; 174 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 175 176 pcmd = cmdiocb->cmd_dmabuf; 177 178 /* For lpfc_els_abort, cmd_dmabuf could be zero'ed to delay 179 * freeing associated memory till after ABTS completes. 180 */ 181 if (pcmd) { 182 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, 183 list); 184 if (prsp) { 185 lp = (uint32_t *) prsp->virt; 186 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); 187 } 188 } else { 189 /* Force ulp_status error since we are returning NULL ptr */ 190 if (!(ulp_status)) { 191 if (phba->sli_rev == LPFC_SLI_REV4) { 192 bf_set(lpfc_wcqe_c_status, &rspiocb->wcqe_cmpl, 193 IOSTAT_LOCAL_REJECT); 194 rspiocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED; 195 } else { 196 rspiocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; 197 rspiocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED; 198 } 199 } 200 ptr = NULL; 201 } 202 return ptr; 203 } 204 205 206 207 /* 208 * Free resources / clean up outstanding I/Os 209 * associated with a LPFC_NODELIST entry. This 210 * routine effectively results in a "software abort". 211 */ 212 void 213 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 214 { 215 LIST_HEAD(abort_list); 216 struct lpfc_sli_ring *pring; 217 struct lpfc_iocbq *iocb, *next_iocb; 218 219 pring = lpfc_phba_elsring(phba); 220 221 /* In case of error recovery path, we might have a NULL pring here */ 222 if (unlikely(!pring)) 223 return; 224 225 /* Abort outstanding I/O on NPort <nlp_DID> */ 226 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, 227 "2819 Abort outstanding I/O on NPort x%x " 228 "Data: x%x x%x x%x\n", 229 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 230 ndlp->nlp_rpi); 231 /* Clean up all fabric IOs first.*/ 232 lpfc_fabric_abort_nport(ndlp); 233 234 /* 235 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list 236 * of all ELS IOs that need an ABTS. The IOs need to stay on the 237 * txcmplq so that the abort operation completes them successfully. 238 */ 239 spin_lock_irq(&phba->hbalock); 240 if (phba->sli_rev == LPFC_SLI_REV4) 241 spin_lock(&pring->ring_lock); 242 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 243 /* Add to abort_list on on NDLP match. */ 244 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 245 list_add_tail(&iocb->dlist, &abort_list); 246 } 247 if (phba->sli_rev == LPFC_SLI_REV4) 248 spin_unlock(&pring->ring_lock); 249 spin_unlock_irq(&phba->hbalock); 250 251 /* Abort the targeted IOs and remove them from the abort list. */ 252 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) { 253 spin_lock_irq(&phba->hbalock); 254 list_del_init(&iocb->dlist); 255 lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL); 256 spin_unlock_irq(&phba->hbalock); 257 } 258 /* Make sure HBA is alive */ 259 lpfc_issue_hb_tmo(phba); 260 261 INIT_LIST_HEAD(&abort_list); 262 263 /* Now process the txq */ 264 spin_lock_irq(&phba->hbalock); 265 if (phba->sli_rev == LPFC_SLI_REV4) 266 spin_lock(&pring->ring_lock); 267 268 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 269 /* Check to see if iocb matches the nport we are looking for */ 270 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 271 list_del_init(&iocb->list); 272 list_add_tail(&iocb->list, &abort_list); 273 } 274 } 275 276 if (phba->sli_rev == LPFC_SLI_REV4) 277 spin_unlock(&pring->ring_lock); 278 spin_unlock_irq(&phba->hbalock); 279 280 /* Cancel all the IOCBs from the completions list */ 281 lpfc_sli_cancel_iocbs(phba, &abort_list, 282 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 283 284 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 285 } 286 287 /* lpfc_defer_plogi_acc - Issue PLOGI ACC after reg_login completes 288 * @phba: pointer to lpfc hba data structure. 289 * @login_mbox: pointer to REG_RPI mailbox object 290 * 291 * The ACC for a rcv'ed PLOGI is deferred until AFTER the REG_RPI completes 292 */ 293 static void 294 lpfc_defer_plogi_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *login_mbox) 295 { 296 struct lpfc_iocbq *save_iocb; 297 struct lpfc_nodelist *ndlp; 298 MAILBOX_t *mb = &login_mbox->u.mb; 299 300 int rc; 301 302 ndlp = login_mbox->ctx_ndlp; 303 save_iocb = login_mbox->context3; 304 305 if (mb->mbxStatus == MBX_SUCCESS) { 306 /* Now that REG_RPI completed successfully, 307 * we can now proceed with sending the PLOGI ACC. 308 */ 309 rc = lpfc_els_rsp_acc(login_mbox->vport, ELS_CMD_PLOGI, 310 save_iocb, ndlp, NULL); 311 if (rc) { 312 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 313 "4576 PLOGI ACC fails pt2pt discovery: " 314 "DID %x Data: %x\n", ndlp->nlp_DID, rc); 315 } 316 } 317 318 /* Now process the REG_RPI cmpl */ 319 lpfc_mbx_cmpl_reg_login(phba, login_mbox); 320 ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN; 321 kfree(save_iocb); 322 } 323 324 static int 325 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 326 struct lpfc_iocbq *cmdiocb) 327 { 328 struct lpfc_hba *phba = vport->phba; 329 struct lpfc_dmabuf *pcmd; 330 uint64_t nlp_portwwn = 0; 331 uint32_t *lp; 332 union lpfc_wqe128 *wqe; 333 IOCB_t *icmd; 334 struct serv_parm *sp; 335 uint32_t ed_tov; 336 LPFC_MBOXQ_t *link_mbox; 337 LPFC_MBOXQ_t *login_mbox; 338 struct lpfc_iocbq *save_iocb; 339 struct ls_rjt stat; 340 uint32_t vid, flag; 341 int rc; 342 u32 remote_did; 343 344 memset(&stat, 0, sizeof (struct ls_rjt)); 345 pcmd = cmdiocb->cmd_dmabuf; 346 lp = (uint32_t *) pcmd->virt; 347 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 348 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 349 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 350 "0140 PLOGI Reject: invalid pname\n"); 351 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 352 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 353 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 354 NULL); 355 return 0; 356 } 357 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 358 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 359 "0141 PLOGI Reject: invalid nname\n"); 360 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 361 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 362 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 363 NULL); 364 return 0; 365 } 366 367 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 368 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 369 /* Reject this request because invalid parameters */ 370 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 371 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 372 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 373 NULL); 374 return 0; 375 } 376 377 if (phba->sli_rev == LPFC_SLI_REV4) 378 wqe = &cmdiocb->wqe; 379 else 380 icmd = &cmdiocb->iocb; 381 382 /* PLOGI chkparm OK */ 383 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 384 "0114 PLOGI chkparm OK Data: x%x x%x x%x " 385 "x%x x%x x%x\n", 386 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 387 ndlp->nlp_rpi, vport->port_state, 388 vport->fc_flag); 389 390 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 391 ndlp->nlp_fcp_info |= CLASS2; 392 else 393 ndlp->nlp_fcp_info |= CLASS3; 394 395 ndlp->nlp_class_sup = 0; 396 if (sp->cls1.classValid) 397 ndlp->nlp_class_sup |= FC_COS_CLASS1; 398 if (sp->cls2.classValid) 399 ndlp->nlp_class_sup |= FC_COS_CLASS2; 400 if (sp->cls3.classValid) 401 ndlp->nlp_class_sup |= FC_COS_CLASS3; 402 if (sp->cls4.classValid) 403 ndlp->nlp_class_sup |= FC_COS_CLASS4; 404 ndlp->nlp_maxframe = 405 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 406 /* if already logged in, do implicit logout */ 407 switch (ndlp->nlp_state) { 408 case NLP_STE_NPR_NODE: 409 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 410 break; 411 fallthrough; 412 case NLP_STE_REG_LOGIN_ISSUE: 413 case NLP_STE_PRLI_ISSUE: 414 case NLP_STE_UNMAPPED_NODE: 415 case NLP_STE_MAPPED_NODE: 416 /* For initiators, lpfc_plogi_confirm_nport skips fabric did. 417 * For target mode, execute implicit logo. 418 * Fabric nodes go into NPR. 419 */ 420 if (!(ndlp->nlp_type & NLP_FABRIC) && 421 !(phba->nvmet_support)) { 422 /* Clear ndlp info, since follow up PRLI may have 423 * updated ndlp information 424 */ 425 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 426 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 427 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 428 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 429 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 430 431 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 432 ndlp, NULL); 433 return 1; 434 } 435 if (nlp_portwwn != 0 && 436 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 437 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 438 "0143 PLOGI recv'd from DID: x%x " 439 "WWPN changed: old %llx new %llx\n", 440 ndlp->nlp_DID, 441 (unsigned long long)nlp_portwwn, 442 (unsigned long long) 443 wwn_to_u64(sp->portName.u.wwn)); 444 445 /* Notify transport of connectivity loss to trigger cleanup. */ 446 if (phba->nvmet_support && 447 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 448 lpfc_nvmet_invalidate_host(phba, ndlp); 449 450 ndlp->nlp_prev_state = ndlp->nlp_state; 451 /* rport needs to be unregistered first */ 452 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 453 break; 454 } 455 456 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 457 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 458 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 459 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 460 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 461 462 login_mbox = NULL; 463 link_mbox = NULL; 464 save_iocb = NULL; 465 466 /* Check for Nport to NPort pt2pt protocol */ 467 if ((vport->fc_flag & FC_PT2PT) && 468 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 469 /* rcv'ed PLOGI decides what our NPortId will be */ 470 if (phba->sli_rev == LPFC_SLI_REV4) { 471 vport->fc_myDID = bf_get(els_rsp64_sid, 472 &cmdiocb->wqe.xmit_els_rsp); 473 } else { 474 vport->fc_myDID = icmd->un.rcvels.parmRo; 475 } 476 477 /* If there is an outstanding FLOGI, abort it now. 478 * The remote NPort is not going to ACC our FLOGI 479 * if its already issuing a PLOGI for pt2pt mode. 480 * This indicates our FLOGI was dropped; however, we 481 * must have ACCed the remote NPorts FLOGI to us 482 * to make it here. 483 */ 484 if (phba->hba_flag & HBA_FLOGI_OUTSTANDING) 485 lpfc_els_abort_flogi(phba); 486 487 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 488 if (sp->cmn.edtovResolution) { 489 /* E_D_TOV ticks are in nanoseconds */ 490 ed_tov = (phba->fc_edtov + 999999) / 1000000; 491 } 492 493 /* 494 * For pt-to-pt, use the larger EDTOV 495 * RATOV = 2 * EDTOV 496 */ 497 if (ed_tov > phba->fc_edtov) 498 phba->fc_edtov = ed_tov; 499 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 500 501 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 502 503 /* Issue CONFIG_LINK for SLI3 or REG_VFI for SLI4, 504 * to account for updated TOV's / parameters 505 */ 506 if (phba->sli_rev == LPFC_SLI_REV4) 507 lpfc_issue_reg_vfi(vport); 508 else { 509 link_mbox = mempool_alloc(phba->mbox_mem_pool, 510 GFP_KERNEL); 511 if (!link_mbox) 512 goto out; 513 lpfc_config_link(phba, link_mbox); 514 link_mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 515 link_mbox->vport = vport; 516 link_mbox->ctx_ndlp = ndlp; 517 518 rc = lpfc_sli_issue_mbox(phba, link_mbox, MBX_NOWAIT); 519 if (rc == MBX_NOT_FINISHED) { 520 mempool_free(link_mbox, phba->mbox_mem_pool); 521 goto out; 522 } 523 } 524 525 lpfc_can_disctmo(vport); 526 } 527 528 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 529 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 530 sp->cmn.valid_vendor_ver_level) { 531 vid = be32_to_cpu(sp->un.vv.vid); 532 flag = be32_to_cpu(sp->un.vv.flags); 533 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) 534 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 535 } 536 537 login_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 538 if (!login_mbox) 539 goto out; 540 541 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL); 542 if (!save_iocb) 543 goto out; 544 545 /* Save info from cmd IOCB to be used in rsp after all mbox completes */ 546 memcpy((uint8_t *)save_iocb, (uint8_t *)cmdiocb, 547 sizeof(struct lpfc_iocbq)); 548 549 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 550 if (phba->sli_rev == LPFC_SLI_REV4) 551 lpfc_unreg_rpi(vport, ndlp); 552 553 /* Issue REG_LOGIN first, before ACCing the PLOGI, thus we will 554 * always be deferring the ACC. 555 */ 556 if (phba->sli_rev == LPFC_SLI_REV4) 557 remote_did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest); 558 else 559 remote_did = icmd->un.rcvels.remoteID; 560 rc = lpfc_reg_rpi(phba, vport->vpi, remote_did, 561 (uint8_t *)sp, login_mbox, ndlp->nlp_rpi); 562 if (rc) 563 goto out; 564 565 login_mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 566 login_mbox->vport = vport; 567 568 /* 569 * If there is an outstanding PLOGI issued, abort it before 570 * sending ACC rsp for received PLOGI. If pending plogi 571 * is not canceled here, the plogi will be rejected by 572 * remote port and will be retried. On a configuration with 573 * single discovery thread, this will cause a huge delay in 574 * discovery. Also this will cause multiple state machines 575 * running in parallel for this node. 576 * This only applies to a fabric environment. 577 */ 578 if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) && 579 (vport->fc_flag & FC_FABRIC)) { 580 /* software abort outstanding PLOGI */ 581 lpfc_els_abort(phba, ndlp); 582 } 583 584 if ((vport->port_type == LPFC_NPIV_PORT && 585 vport->cfg_restrict_login)) { 586 587 /* no deferred ACC */ 588 kfree(save_iocb); 589 590 /* This is an NPIV SLI4 instance that does not need to register 591 * a default RPI. 592 */ 593 if (phba->sli_rev == LPFC_SLI_REV4) { 594 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 595 MBOX_THD_UNLOCKED); 596 login_mbox = NULL; 597 } else { 598 /* In order to preserve RPIs, we want to cleanup 599 * the default RPI the firmware created to rcv 600 * this ELS request. The only way to do this is 601 * to register, then unregister the RPI. 602 */ 603 spin_lock_irq(&ndlp->lock); 604 ndlp->nlp_flag |= (NLP_RM_DFLT_RPI | NLP_ACC_REGLOGIN | 605 NLP_RCV_PLOGI); 606 spin_unlock_irq(&ndlp->lock); 607 } 608 609 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 610 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 611 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 612 ndlp, login_mbox); 613 if (rc && login_mbox) 614 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 615 MBOX_THD_UNLOCKED); 616 return 1; 617 } 618 619 /* So the order here should be: 620 * SLI3 pt2pt 621 * Issue CONFIG_LINK mbox 622 * CONFIG_LINK cmpl 623 * SLI4 pt2pt 624 * Issue REG_VFI mbox 625 * REG_VFI cmpl 626 * SLI4 627 * Issue UNREG RPI mbx 628 * UNREG RPI cmpl 629 * Issue REG_RPI mbox 630 * REG RPI cmpl 631 * Issue PLOGI ACC 632 * PLOGI ACC cmpl 633 */ 634 login_mbox->mbox_cmpl = lpfc_defer_plogi_acc; 635 login_mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 636 login_mbox->context3 = save_iocb; /* For PLOGI ACC */ 637 638 spin_lock_irq(&ndlp->lock); 639 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 640 spin_unlock_irq(&ndlp->lock); 641 642 /* Start the ball rolling by issuing REG_LOGIN here */ 643 rc = lpfc_sli_issue_mbox(phba, login_mbox, MBX_NOWAIT); 644 if (rc == MBX_NOT_FINISHED) 645 goto out; 646 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); 647 648 return 1; 649 out: 650 kfree(save_iocb); 651 if (login_mbox) 652 mempool_free(login_mbox, phba->mbox_mem_pool); 653 654 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 655 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 656 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 657 return 0; 658 } 659 660 /** 661 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 662 * @phba: pointer to lpfc hba data structure. 663 * @mboxq: pointer to mailbox object 664 * 665 * This routine is invoked to issue a completion to a rcv'ed 666 * ADISC or PDISC after the paused RPI has been resumed. 667 **/ 668 static void 669 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 670 { 671 struct lpfc_vport *vport; 672 struct lpfc_iocbq *elsiocb; 673 struct lpfc_nodelist *ndlp; 674 uint32_t cmd; 675 676 elsiocb = (struct lpfc_iocbq *)mboxq->ctx_buf; 677 ndlp = (struct lpfc_nodelist *)mboxq->ctx_ndlp; 678 vport = mboxq->vport; 679 cmd = elsiocb->drvrTimeout; 680 681 if (cmd == ELS_CMD_ADISC) { 682 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 683 } else { 684 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 685 ndlp, NULL); 686 } 687 688 /* This nlp_put pairs with lpfc_sli4_resume_rpi */ 689 lpfc_nlp_put(ndlp); 690 691 kfree(elsiocb); 692 mempool_free(mboxq, phba->mbox_mem_pool); 693 } 694 695 static int 696 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 697 struct lpfc_iocbq *cmdiocb) 698 { 699 struct lpfc_hba *phba = vport->phba; 700 struct lpfc_iocbq *elsiocb; 701 struct lpfc_dmabuf *pcmd; 702 struct serv_parm *sp; 703 struct lpfc_name *pnn, *ppn; 704 struct ls_rjt stat; 705 ADISC *ap; 706 uint32_t *lp; 707 uint32_t cmd; 708 709 pcmd = cmdiocb->cmd_dmabuf; 710 lp = (uint32_t *) pcmd->virt; 711 712 cmd = *lp++; 713 if (cmd == ELS_CMD_ADISC) { 714 ap = (ADISC *) lp; 715 pnn = (struct lpfc_name *) & ap->nodeName; 716 ppn = (struct lpfc_name *) & ap->portName; 717 } else { 718 sp = (struct serv_parm *) lp; 719 pnn = (struct lpfc_name *) & sp->nodeName; 720 ppn = (struct lpfc_name *) & sp->portName; 721 } 722 723 if (get_job_ulpstatus(phba, cmdiocb) == 0 && 724 lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 725 726 /* 727 * As soon as we send ACC, the remote NPort can 728 * start sending us data. Thus, for SLI4 we must 729 * resume the RPI before the ACC goes out. 730 */ 731 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 732 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 733 GFP_KERNEL); 734 if (elsiocb) { 735 /* Save info from cmd IOCB used in rsp */ 736 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 737 sizeof(struct lpfc_iocbq)); 738 739 /* Save the ELS cmd */ 740 elsiocb->drvrTimeout = cmd; 741 742 lpfc_sli4_resume_rpi(ndlp, 743 lpfc_mbx_cmpl_resume_rpi, elsiocb); 744 goto out; 745 } 746 } 747 748 if (cmd == ELS_CMD_ADISC) { 749 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 750 } else { 751 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 752 ndlp, NULL); 753 } 754 out: 755 /* If we are authenticated, move to the proper state. 756 * It is possible an ADISC arrived and the remote nport 757 * is already in MAPPED or UNMAPPED state. Catch this 758 * condition and don't set the nlp_state again because 759 * it causes an unnecessary transport unregister/register. 760 * 761 * Nodes marked for ADISC will move MAPPED or UNMAPPED state 762 * after issuing ADISC 763 */ 764 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 765 if ((ndlp->nlp_state != NLP_STE_MAPPED_NODE) && 766 !(ndlp->nlp_flag & NLP_NPR_ADISC)) 767 lpfc_nlp_set_state(vport, ndlp, 768 NLP_STE_MAPPED_NODE); 769 } 770 771 return 1; 772 } 773 /* Reject this request because invalid parameters */ 774 stat.un.b.lsRjtRsvd0 = 0; 775 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 776 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 777 stat.un.b.vendorUnique = 0; 778 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 779 780 /* 1 sec timeout */ 781 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 782 783 spin_lock_irq(&ndlp->lock); 784 ndlp->nlp_flag |= NLP_DELAY_TMO; 785 spin_unlock_irq(&ndlp->lock); 786 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 787 ndlp->nlp_prev_state = ndlp->nlp_state; 788 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 789 return 0; 790 } 791 792 static int 793 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 794 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 795 { 796 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 797 struct lpfc_hba *phba = vport->phba; 798 struct lpfc_vport **vports; 799 int i, active_vlink_present = 0 ; 800 801 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 802 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 803 * PLOGIs during LOGO storms from a device. 804 */ 805 spin_lock_irq(&ndlp->lock); 806 ndlp->nlp_flag |= NLP_LOGO_ACC; 807 spin_unlock_irq(&ndlp->lock); 808 if (els_cmd == ELS_CMD_PRLO) 809 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 810 else 811 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 812 813 /* This clause allows the initiator to ACC the LOGO back to the 814 * Fabric Domain Controller. It does deliberately skip all other 815 * steps because some fabrics send RDP requests after logging out 816 * from the initiator. 817 */ 818 if (ndlp->nlp_type & NLP_FABRIC && 819 ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK)) 820 return 0; 821 822 /* Notify transport of connectivity loss to trigger cleanup. */ 823 if (phba->nvmet_support && 824 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 825 lpfc_nvmet_invalidate_host(phba, ndlp); 826 827 if (ndlp->nlp_DID == Fabric_DID) { 828 if (vport->port_state <= LPFC_FDISC) 829 goto out; 830 lpfc_linkdown_port(vport); 831 spin_lock_irq(shost->host_lock); 832 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 833 spin_unlock_irq(shost->host_lock); 834 vports = lpfc_create_vport_work_array(phba); 835 if (vports) { 836 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 837 i++) { 838 if ((!(vports[i]->fc_flag & 839 FC_VPORT_LOGO_RCVD)) && 840 (vports[i]->port_state > LPFC_FDISC)) { 841 active_vlink_present = 1; 842 break; 843 } 844 } 845 lpfc_destroy_vport_work_array(phba, vports); 846 } 847 848 /* 849 * Don't re-instantiate if vport is marked for deletion. 850 * If we are here first then vport_delete is going to wait 851 * for discovery to complete. 852 */ 853 if (!(vport->load_flag & FC_UNLOADING) && 854 active_vlink_present) { 855 /* 856 * If there are other active VLinks present, 857 * re-instantiate the Vlink using FDISC. 858 */ 859 mod_timer(&ndlp->nlp_delayfunc, 860 jiffies + msecs_to_jiffies(1000)); 861 spin_lock_irq(&ndlp->lock); 862 ndlp->nlp_flag |= NLP_DELAY_TMO; 863 spin_unlock_irq(&ndlp->lock); 864 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 865 vport->port_state = LPFC_FDISC; 866 } else { 867 spin_lock_irq(shost->host_lock); 868 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 869 spin_unlock_irq(shost->host_lock); 870 lpfc_retry_pport_discovery(phba); 871 } 872 } else if ((!(ndlp->nlp_type & NLP_FABRIC) && 873 ((ndlp->nlp_type & NLP_FCP_TARGET) || 874 (ndlp->nlp_type & NLP_NVME_TARGET) || 875 (vport->fc_flag & FC_PT2PT))) || 876 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { 877 /* Only try to re-login if this is NOT a Fabric Node 878 * AND the remote NPORT is a FCP/NVME Target or we 879 * are in pt2pt mode. NLP_STE_ADISC_ISSUE is a special 880 * case for LOGO as a response to ADISC behavior. 881 */ 882 mod_timer(&ndlp->nlp_delayfunc, 883 jiffies + msecs_to_jiffies(1000 * 1)); 884 spin_lock_irq(&ndlp->lock); 885 ndlp->nlp_flag |= NLP_DELAY_TMO; 886 spin_unlock_irq(&ndlp->lock); 887 888 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 889 } 890 out: 891 /* Unregister from backend, could have been skipped due to ADISC */ 892 lpfc_nlp_unreg_node(vport, ndlp); 893 894 ndlp->nlp_prev_state = ndlp->nlp_state; 895 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 896 897 spin_lock_irq(&ndlp->lock); 898 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 899 spin_unlock_irq(&ndlp->lock); 900 /* The driver has to wait until the ACC completes before it continues 901 * processing the LOGO. The action will resume in 902 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 903 * unreg_login, the driver waits so the ACC does not get aborted. 904 */ 905 return 0; 906 } 907 908 static uint32_t 909 lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 910 struct lpfc_nodelist *ndlp, 911 struct lpfc_iocbq *cmdiocb) 912 { 913 struct ls_rjt stat; 914 uint32_t *payload; 915 uint32_t cmd; 916 917 payload = cmdiocb->cmd_dmabuf->virt; 918 cmd = *payload; 919 if (vport->phba->nvmet_support) { 920 /* Must be a NVME PRLI */ 921 if (cmd == ELS_CMD_PRLI) 922 goto out; 923 } else { 924 /* Initiator mode. */ 925 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 926 goto out; 927 } 928 return 1; 929 out: 930 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC, 931 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 932 "state x%x flags x%x\n", 933 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 934 ndlp->nlp_flag); 935 memset(&stat, 0, sizeof(struct ls_rjt)); 936 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 937 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 938 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 939 ndlp, NULL); 940 return 0; 941 } 942 943 static void 944 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 945 struct lpfc_iocbq *cmdiocb) 946 { 947 struct lpfc_hba *phba = vport->phba; 948 struct lpfc_dmabuf *pcmd; 949 uint32_t *lp; 950 PRLI *npr; 951 struct fc_rport *rport = ndlp->rport; 952 u32 roles; 953 954 pcmd = cmdiocb->cmd_dmabuf; 955 lp = (uint32_t *)pcmd->virt; 956 npr = (PRLI *)((uint8_t *)lp + sizeof(uint32_t)); 957 958 if ((npr->prliType == PRLI_FCP_TYPE) || 959 (npr->prliType == PRLI_NVME_TYPE)) { 960 if (npr->initiatorFunc) { 961 if (npr->prliType == PRLI_FCP_TYPE) 962 ndlp->nlp_type |= NLP_FCP_INITIATOR; 963 if (npr->prliType == PRLI_NVME_TYPE) 964 ndlp->nlp_type |= NLP_NVME_INITIATOR; 965 } 966 if (npr->targetFunc) { 967 if (npr->prliType == PRLI_FCP_TYPE) 968 ndlp->nlp_type |= NLP_FCP_TARGET; 969 if (npr->prliType == PRLI_NVME_TYPE) 970 ndlp->nlp_type |= NLP_NVME_TARGET; 971 if (npr->writeXferRdyDis) 972 ndlp->nlp_flag |= NLP_FIRSTBURST; 973 } 974 if (npr->Retry && ndlp->nlp_type & 975 (NLP_FCP_INITIATOR | NLP_FCP_TARGET)) 976 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 977 978 if (npr->Retry && phba->nsler && 979 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET)) 980 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 981 982 983 /* If this driver is in nvme target mode, set the ndlp's fc4 984 * type to NVME provided the PRLI response claims NVME FC4 985 * type. Target mode does not issue gft_id so doesn't get 986 * the fc4 type set until now. 987 */ 988 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 989 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 990 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 991 } 992 993 /* Fabric Controllers send FCP PRLI as an initiator but should 994 * not get recognized as FCP type and registered with transport. 995 */ 996 if (npr->prliType == PRLI_FCP_TYPE && 997 !(ndlp->nlp_type & NLP_FABRIC)) 998 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 999 } 1000 if (rport) { 1001 /* We need to update the rport role values */ 1002 roles = FC_RPORT_ROLE_UNKNOWN; 1003 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 1004 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 1005 if (ndlp->nlp_type & NLP_FCP_TARGET) 1006 roles |= FC_RPORT_ROLE_FCP_TARGET; 1007 1008 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 1009 "rport rolechg: role:x%x did:x%x flg:x%x", 1010 roles, ndlp->nlp_DID, ndlp->nlp_flag); 1011 1012 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1013 fc_remote_port_rolechg(rport, roles); 1014 } 1015 } 1016 1017 static uint32_t 1018 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 1019 { 1020 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 1021 spin_lock_irq(&ndlp->lock); 1022 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1023 spin_unlock_irq(&ndlp->lock); 1024 return 0; 1025 } 1026 1027 if (!(vport->fc_flag & FC_PT2PT)) { 1028 /* Check config parameter use-adisc or FCP-2 */ 1029 if (vport->cfg_use_adisc && ((vport->fc_flag & FC_RSCN_MODE) || 1030 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 1031 (ndlp->nlp_type & NLP_FCP_TARGET)))) { 1032 spin_lock_irq(&ndlp->lock); 1033 ndlp->nlp_flag |= NLP_NPR_ADISC; 1034 spin_unlock_irq(&ndlp->lock); 1035 return 1; 1036 } 1037 } 1038 1039 spin_lock_irq(&ndlp->lock); 1040 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1041 spin_unlock_irq(&ndlp->lock); 1042 lpfc_unreg_rpi(vport, ndlp); 1043 return 0; 1044 } 1045 1046 /** 1047 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 1048 * @phba : Pointer to lpfc_hba structure. 1049 * @vport: Pointer to lpfc_vport structure. 1050 * @ndlp: Pointer to lpfc_nodelist structure. 1051 * @rpi : rpi to be release. 1052 * 1053 * This function will send a unreg_login mailbox command to the firmware 1054 * to release a rpi. 1055 **/ 1056 static void 1057 lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, 1058 struct lpfc_nodelist *ndlp, uint16_t rpi) 1059 { 1060 LPFC_MBOXQ_t *pmb; 1061 int rc; 1062 1063 /* If there is already an UNREG in progress for this ndlp, 1064 * no need to queue up another one. 1065 */ 1066 if (ndlp->nlp_flag & NLP_UNREG_INP) { 1067 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1068 "1435 release_rpi SKIP UNREG x%x on " 1069 "NPort x%x deferred x%x flg x%x " 1070 "Data: x%px\n", 1071 ndlp->nlp_rpi, ndlp->nlp_DID, 1072 ndlp->nlp_defer_did, 1073 ndlp->nlp_flag, ndlp); 1074 return; 1075 } 1076 1077 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 1078 GFP_KERNEL); 1079 if (!pmb) 1080 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1081 "2796 mailbox memory allocation failed \n"); 1082 else { 1083 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 1084 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1085 pmb->vport = vport; 1086 pmb->ctx_ndlp = lpfc_nlp_get(ndlp); 1087 if (!pmb->ctx_ndlp) { 1088 mempool_free(pmb, phba->mbox_mem_pool); 1089 return; 1090 } 1091 1092 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 1093 (!(vport->fc_flag & FC_OFFLINE_MODE))) 1094 ndlp->nlp_flag |= NLP_UNREG_INP; 1095 1096 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1097 "1437 release_rpi UNREG x%x " 1098 "on NPort x%x flg x%x\n", 1099 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); 1100 1101 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 1102 if (rc == MBX_NOT_FINISHED) 1103 mempool_free(pmb, phba->mbox_mem_pool); 1104 } 1105 } 1106 1107 static uint32_t 1108 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1109 void *arg, uint32_t evt) 1110 { 1111 struct lpfc_hba *phba; 1112 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1113 uint16_t rpi; 1114 1115 phba = vport->phba; 1116 /* Release the RPI if reglogin completing */ 1117 if (!(phba->pport->load_flag & FC_UNLOADING) && 1118 (evt == NLP_EVT_CMPL_REG_LOGIN) && 1119 (!pmb->u.mb.mbxStatus)) { 1120 rpi = pmb->u.mb.un.varWords[0]; 1121 lpfc_release_rpi(phba, vport, ndlp, rpi); 1122 } 1123 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1124 "0271 Illegal State Transition: node x%x " 1125 "event x%x, state x%x Data: x%x x%x\n", 1126 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1127 ndlp->nlp_flag); 1128 return ndlp->nlp_state; 1129 } 1130 1131 static uint32_t 1132 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1133 void *arg, uint32_t evt) 1134 { 1135 /* This transition is only legal if we previously 1136 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 1137 * working on the same NPortID, do nothing for this thread 1138 * to stop it. 1139 */ 1140 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 1141 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1142 "0272 Illegal State Transition: node x%x " 1143 "event x%x, state x%x Data: x%x x%x\n", 1144 ndlp->nlp_DID, evt, ndlp->nlp_state, 1145 ndlp->nlp_rpi, ndlp->nlp_flag); 1146 } 1147 return ndlp->nlp_state; 1148 } 1149 1150 /* Start of Discovery State Machine routines */ 1151 1152 static uint32_t 1153 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1154 void *arg, uint32_t evt) 1155 { 1156 struct lpfc_iocbq *cmdiocb; 1157 1158 cmdiocb = (struct lpfc_iocbq *) arg; 1159 1160 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1161 return ndlp->nlp_state; 1162 } 1163 return NLP_STE_FREED_NODE; 1164 } 1165 1166 static uint32_t 1167 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1168 void *arg, uint32_t evt) 1169 { 1170 lpfc_issue_els_logo(vport, ndlp, 0); 1171 return ndlp->nlp_state; 1172 } 1173 1174 static uint32_t 1175 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1176 void *arg, uint32_t evt) 1177 { 1178 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1179 1180 spin_lock_irq(&ndlp->lock); 1181 ndlp->nlp_flag |= NLP_LOGO_ACC; 1182 spin_unlock_irq(&ndlp->lock); 1183 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1184 1185 return ndlp->nlp_state; 1186 } 1187 1188 static uint32_t 1189 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1190 void *arg, uint32_t evt) 1191 { 1192 return NLP_STE_FREED_NODE; 1193 } 1194 1195 static uint32_t 1196 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1197 void *arg, uint32_t evt) 1198 { 1199 return NLP_STE_FREED_NODE; 1200 } 1201 1202 static uint32_t 1203 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 1204 struct lpfc_nodelist *ndlp, 1205 void *arg, uint32_t evt) 1206 { 1207 return ndlp->nlp_state; 1208 } 1209 1210 static uint32_t 1211 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1212 void *arg, uint32_t evt) 1213 { 1214 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1215 struct lpfc_hba *phba = vport->phba; 1216 struct lpfc_iocbq *cmdiocb = arg; 1217 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 1218 uint32_t *lp = (uint32_t *) pcmd->virt; 1219 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1220 struct ls_rjt stat; 1221 int port_cmp; 1222 1223 memset(&stat, 0, sizeof (struct ls_rjt)); 1224 1225 /* For a PLOGI, we only accept if our portname is less 1226 * than the remote portname. 1227 */ 1228 phba->fc_stat.elsLogiCol++; 1229 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1230 sizeof(struct lpfc_name)); 1231 1232 if (port_cmp >= 0) { 1233 /* Reject this request because the remote node will accept 1234 ours */ 1235 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1236 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1237 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1238 NULL); 1239 } else { 1240 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1241 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 1242 (vport->num_disc_nodes)) { 1243 spin_lock_irq(&ndlp->lock); 1244 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1245 spin_unlock_irq(&ndlp->lock); 1246 /* Check if there are more PLOGIs to be sent */ 1247 lpfc_more_plogi(vport); 1248 if (vport->num_disc_nodes == 0) { 1249 spin_lock_irq(shost->host_lock); 1250 vport->fc_flag &= ~FC_NDISC_ACTIVE; 1251 spin_unlock_irq(shost->host_lock); 1252 lpfc_can_disctmo(vport); 1253 lpfc_end_rscn(vport); 1254 } 1255 } 1256 } /* If our portname was less */ 1257 1258 return ndlp->nlp_state; 1259 } 1260 1261 static uint32_t 1262 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1263 void *arg, uint32_t evt) 1264 { 1265 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1266 struct ls_rjt stat; 1267 1268 memset(&stat, 0, sizeof (struct ls_rjt)); 1269 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1270 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1271 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1272 return ndlp->nlp_state; 1273 } 1274 1275 static uint32_t 1276 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1277 void *arg, uint32_t evt) 1278 { 1279 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1280 1281 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1282 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1283 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1284 /* software abort outstanding PLOGI */ 1285 lpfc_els_abort(vport->phba, ndlp); 1286 1287 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1288 return ndlp->nlp_state; 1289 } 1290 1291 static uint32_t 1292 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1293 void *arg, uint32_t evt) 1294 { 1295 struct lpfc_hba *phba = vport->phba; 1296 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1297 1298 /* software abort outstanding PLOGI */ 1299 lpfc_els_abort(phba, ndlp); 1300 1301 if (evt == NLP_EVT_RCV_LOGO) { 1302 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1303 } else { 1304 lpfc_issue_els_logo(vport, ndlp, 0); 1305 } 1306 1307 /* Put ndlp in npr state set plogi timer for 1 sec */ 1308 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1309 spin_lock_irq(&ndlp->lock); 1310 ndlp->nlp_flag |= NLP_DELAY_TMO; 1311 spin_unlock_irq(&ndlp->lock); 1312 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1313 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1314 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1315 1316 return ndlp->nlp_state; 1317 } 1318 1319 static uint32_t 1320 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1321 struct lpfc_nodelist *ndlp, 1322 void *arg, 1323 uint32_t evt) 1324 { 1325 struct lpfc_hba *phba = vport->phba; 1326 struct lpfc_iocbq *cmdiocb, *rspiocb; 1327 struct lpfc_dmabuf *pcmd, *prsp; 1328 uint32_t *lp; 1329 uint32_t vid, flag; 1330 struct serv_parm *sp; 1331 uint32_t ed_tov; 1332 LPFC_MBOXQ_t *mbox; 1333 int rc; 1334 u32 ulp_status; 1335 u32 did; 1336 1337 cmdiocb = (struct lpfc_iocbq *) arg; 1338 rspiocb = cmdiocb->rsp_iocb; 1339 1340 ulp_status = get_job_ulpstatus(phba, rspiocb); 1341 1342 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1343 /* Recovery from PLOGI collision logic */ 1344 return ndlp->nlp_state; 1345 } 1346 1347 if (ulp_status) 1348 goto out; 1349 1350 pcmd = cmdiocb->cmd_dmabuf; 1351 1352 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1353 if (!prsp) 1354 goto out; 1355 1356 lp = (uint32_t *) prsp->virt; 1357 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1358 1359 /* Some switches have FDMI servers returning 0 for WWN */ 1360 if ((ndlp->nlp_DID != FDMI_DID) && 1361 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1362 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1363 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1364 "0142 PLOGI RSP: Invalid WWN.\n"); 1365 goto out; 1366 } 1367 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1368 goto out; 1369 /* PLOGI chkparm OK */ 1370 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1371 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1372 ndlp->nlp_DID, ndlp->nlp_state, 1373 ndlp->nlp_flag, ndlp->nlp_rpi); 1374 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1375 ndlp->nlp_fcp_info |= CLASS2; 1376 else 1377 ndlp->nlp_fcp_info |= CLASS3; 1378 1379 ndlp->nlp_class_sup = 0; 1380 if (sp->cls1.classValid) 1381 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1382 if (sp->cls2.classValid) 1383 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1384 if (sp->cls3.classValid) 1385 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1386 if (sp->cls4.classValid) 1387 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1388 ndlp->nlp_maxframe = 1389 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1390 1391 if ((vport->fc_flag & FC_PT2PT) && 1392 (vport->fc_flag & FC_PT2PT_PLOGI)) { 1393 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1394 if (sp->cmn.edtovResolution) { 1395 /* E_D_TOV ticks are in nanoseconds */ 1396 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1397 } 1398 1399 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 1400 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1401 sp->cmn.valid_vendor_ver_level) { 1402 vid = be32_to_cpu(sp->un.vv.vid); 1403 flag = be32_to_cpu(sp->un.vv.flags); 1404 if ((vid == LPFC_VV_EMLX_ID) && 1405 (flag & LPFC_VV_SUPPRESS_RSP)) 1406 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 1407 } 1408 1409 /* 1410 * Use the larger EDTOV 1411 * RATOV = 2 * EDTOV for pt-to-pt 1412 */ 1413 if (ed_tov > phba->fc_edtov) 1414 phba->fc_edtov = ed_tov; 1415 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1416 1417 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1418 1419 /* Issue config_link / reg_vfi to account for updated TOV's */ 1420 if (phba->sli_rev == LPFC_SLI_REV4) { 1421 lpfc_issue_reg_vfi(vport); 1422 } else { 1423 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1424 if (!mbox) { 1425 lpfc_printf_vlog(vport, KERN_ERR, 1426 LOG_TRACE_EVENT, 1427 "0133 PLOGI: no memory " 1428 "for config_link " 1429 "Data: x%x x%x x%x x%x\n", 1430 ndlp->nlp_DID, ndlp->nlp_state, 1431 ndlp->nlp_flag, ndlp->nlp_rpi); 1432 goto out; 1433 } 1434 1435 lpfc_config_link(phba, mbox); 1436 1437 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1438 mbox->vport = vport; 1439 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1440 if (rc == MBX_NOT_FINISHED) { 1441 mempool_free(mbox, phba->mbox_mem_pool); 1442 goto out; 1443 } 1444 } 1445 } 1446 1447 lpfc_unreg_rpi(vport, ndlp); 1448 1449 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1450 if (!mbox) { 1451 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1452 "0018 PLOGI: no memory for reg_login " 1453 "Data: x%x x%x x%x x%x\n", 1454 ndlp->nlp_DID, ndlp->nlp_state, 1455 ndlp->nlp_flag, ndlp->nlp_rpi); 1456 goto out; 1457 } 1458 1459 did = get_job_els_rsp64_did(phba, cmdiocb); 1460 1461 if (lpfc_reg_rpi(phba, vport->vpi, did, 1462 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1463 switch (ndlp->nlp_DID) { 1464 case NameServer_DID: 1465 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1466 /* Fabric Controller Node needs these parameters. */ 1467 memcpy(&ndlp->fc_sparam, sp, sizeof(struct serv_parm)); 1468 break; 1469 case FDMI_DID: 1470 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1471 break; 1472 default: 1473 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1474 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1475 } 1476 1477 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1478 if (!mbox->ctx_ndlp) 1479 goto out; 1480 1481 mbox->vport = vport; 1482 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1483 != MBX_NOT_FINISHED) { 1484 lpfc_nlp_set_state(vport, ndlp, 1485 NLP_STE_REG_LOGIN_ISSUE); 1486 return ndlp->nlp_state; 1487 } 1488 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1489 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1490 /* decrement node reference count to the failed mbox 1491 * command 1492 */ 1493 lpfc_nlp_put(ndlp); 1494 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 1495 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1496 "0134 PLOGI: cannot issue reg_login " 1497 "Data: x%x x%x x%x x%x\n", 1498 ndlp->nlp_DID, ndlp->nlp_state, 1499 ndlp->nlp_flag, ndlp->nlp_rpi); 1500 } else { 1501 mempool_free(mbox, phba->mbox_mem_pool); 1502 1503 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1504 "0135 PLOGI: cannot format reg_login " 1505 "Data: x%x x%x x%x x%x\n", 1506 ndlp->nlp_DID, ndlp->nlp_state, 1507 ndlp->nlp_flag, ndlp->nlp_rpi); 1508 } 1509 1510 1511 out: 1512 if (ndlp->nlp_DID == NameServer_DID) { 1513 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1514 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1515 "0261 Cannot Register NameServer login\n"); 1516 } 1517 1518 /* 1519 ** In case the node reference counter does not go to zero, ensure that 1520 ** the stale state for the node is not processed. 1521 */ 1522 1523 ndlp->nlp_prev_state = ndlp->nlp_state; 1524 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1525 return NLP_STE_FREED_NODE; 1526 } 1527 1528 static uint32_t 1529 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1530 void *arg, uint32_t evt) 1531 { 1532 return ndlp->nlp_state; 1533 } 1534 1535 static uint32_t 1536 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1537 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1538 { 1539 struct lpfc_hba *phba; 1540 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1541 MAILBOX_t *mb = &pmb->u.mb; 1542 uint16_t rpi; 1543 1544 phba = vport->phba; 1545 /* Release the RPI */ 1546 if (!(phba->pport->load_flag & FC_UNLOADING) && 1547 !mb->mbxStatus) { 1548 rpi = pmb->u.mb.un.varWords[0]; 1549 lpfc_release_rpi(phba, vport, ndlp, rpi); 1550 } 1551 return ndlp->nlp_state; 1552 } 1553 1554 static uint32_t 1555 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1556 void *arg, uint32_t evt) 1557 { 1558 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1559 spin_lock_irq(&ndlp->lock); 1560 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1561 spin_unlock_irq(&ndlp->lock); 1562 return ndlp->nlp_state; 1563 } else { 1564 /* software abort outstanding PLOGI */ 1565 lpfc_els_abort(vport->phba, ndlp); 1566 1567 lpfc_drop_node(vport, ndlp); 1568 return NLP_STE_FREED_NODE; 1569 } 1570 } 1571 1572 static uint32_t 1573 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1574 struct lpfc_nodelist *ndlp, 1575 void *arg, 1576 uint32_t evt) 1577 { 1578 struct lpfc_hba *phba = vport->phba; 1579 1580 /* Don't do anything that will mess up processing of the 1581 * previous RSCN. 1582 */ 1583 if (vport->fc_flag & FC_RSCN_DEFERRED) 1584 return ndlp->nlp_state; 1585 1586 /* software abort outstanding PLOGI */ 1587 lpfc_els_abort(phba, ndlp); 1588 1589 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1590 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1591 spin_lock_irq(&ndlp->lock); 1592 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1593 spin_unlock_irq(&ndlp->lock); 1594 1595 return ndlp->nlp_state; 1596 } 1597 1598 static uint32_t 1599 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1600 void *arg, uint32_t evt) 1601 { 1602 struct lpfc_hba *phba = vport->phba; 1603 struct lpfc_iocbq *cmdiocb; 1604 1605 /* software abort outstanding ADISC */ 1606 lpfc_els_abort(phba, ndlp); 1607 1608 cmdiocb = (struct lpfc_iocbq *) arg; 1609 1610 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1611 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1612 spin_lock_irq(&ndlp->lock); 1613 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1614 spin_unlock_irq(&ndlp->lock); 1615 if (vport->num_disc_nodes) 1616 lpfc_more_adisc(vport); 1617 } 1618 return ndlp->nlp_state; 1619 } 1620 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1621 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1622 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1623 1624 return ndlp->nlp_state; 1625 } 1626 1627 static uint32_t 1628 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1629 void *arg, uint32_t evt) 1630 { 1631 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1632 1633 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1634 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1635 return ndlp->nlp_state; 1636 } 1637 1638 static uint32_t 1639 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1640 void *arg, uint32_t evt) 1641 { 1642 struct lpfc_hba *phba = vport->phba; 1643 struct lpfc_iocbq *cmdiocb; 1644 1645 cmdiocb = (struct lpfc_iocbq *) arg; 1646 1647 /* software abort outstanding ADISC */ 1648 lpfc_els_abort(phba, ndlp); 1649 1650 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1651 return ndlp->nlp_state; 1652 } 1653 1654 static uint32_t 1655 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1656 struct lpfc_nodelist *ndlp, 1657 void *arg, uint32_t evt) 1658 { 1659 struct lpfc_iocbq *cmdiocb; 1660 1661 cmdiocb = (struct lpfc_iocbq *) arg; 1662 1663 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1664 return ndlp->nlp_state; 1665 } 1666 1667 static uint32_t 1668 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1669 void *arg, uint32_t evt) 1670 { 1671 struct lpfc_iocbq *cmdiocb; 1672 1673 cmdiocb = (struct lpfc_iocbq *) arg; 1674 1675 /* Treat like rcv logo */ 1676 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1677 return ndlp->nlp_state; 1678 } 1679 1680 static uint32_t 1681 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1682 struct lpfc_nodelist *ndlp, 1683 void *arg, uint32_t evt) 1684 { 1685 struct lpfc_hba *phba = vport->phba; 1686 struct lpfc_iocbq *cmdiocb, *rspiocb; 1687 ADISC *ap; 1688 int rc; 1689 u32 ulp_status; 1690 1691 cmdiocb = (struct lpfc_iocbq *) arg; 1692 rspiocb = cmdiocb->rsp_iocb; 1693 1694 ulp_status = get_job_ulpstatus(phba, rspiocb); 1695 1696 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1697 1698 if ((ulp_status) || 1699 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1700 /* 1 sec timeout */ 1701 mod_timer(&ndlp->nlp_delayfunc, 1702 jiffies + msecs_to_jiffies(1000)); 1703 spin_lock_irq(&ndlp->lock); 1704 ndlp->nlp_flag |= NLP_DELAY_TMO; 1705 spin_unlock_irq(&ndlp->lock); 1706 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1707 1708 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1709 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1710 lpfc_unreg_rpi(vport, ndlp); 1711 return ndlp->nlp_state; 1712 } 1713 1714 if (phba->sli_rev == LPFC_SLI_REV4) { 1715 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1716 if (rc) { 1717 /* Stay in state and retry. */ 1718 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1719 return ndlp->nlp_state; 1720 } 1721 } 1722 1723 if (ndlp->nlp_type & NLP_FCP_TARGET) 1724 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1725 1726 if (ndlp->nlp_type & NLP_NVME_TARGET) 1727 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1728 1729 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 1730 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1731 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1732 } else { 1733 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1734 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1735 } 1736 1737 return ndlp->nlp_state; 1738 } 1739 1740 static uint32_t 1741 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1742 void *arg, uint32_t evt) 1743 { 1744 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1745 spin_lock_irq(&ndlp->lock); 1746 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1747 spin_unlock_irq(&ndlp->lock); 1748 return ndlp->nlp_state; 1749 } else { 1750 /* software abort outstanding ADISC */ 1751 lpfc_els_abort(vport->phba, ndlp); 1752 1753 lpfc_drop_node(vport, ndlp); 1754 return NLP_STE_FREED_NODE; 1755 } 1756 } 1757 1758 static uint32_t 1759 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1760 struct lpfc_nodelist *ndlp, 1761 void *arg, 1762 uint32_t evt) 1763 { 1764 struct lpfc_hba *phba = vport->phba; 1765 1766 /* Don't do anything that will mess up processing of the 1767 * previous RSCN. 1768 */ 1769 if (vport->fc_flag & FC_RSCN_DEFERRED) 1770 return ndlp->nlp_state; 1771 1772 /* software abort outstanding ADISC */ 1773 lpfc_els_abort(phba, ndlp); 1774 1775 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1776 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1777 spin_lock_irq(&ndlp->lock); 1778 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1779 spin_unlock_irq(&ndlp->lock); 1780 lpfc_disc_set_adisc(vport, ndlp); 1781 return ndlp->nlp_state; 1782 } 1783 1784 static uint32_t 1785 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1786 struct lpfc_nodelist *ndlp, 1787 void *arg, 1788 uint32_t evt) 1789 { 1790 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1791 1792 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1793 return ndlp->nlp_state; 1794 } 1795 1796 static uint32_t 1797 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1798 struct lpfc_nodelist *ndlp, 1799 void *arg, 1800 uint32_t evt) 1801 { 1802 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1803 struct ls_rjt stat; 1804 1805 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1806 return ndlp->nlp_state; 1807 } 1808 if (vport->phba->nvmet_support) { 1809 /* NVME Target mode. Handle and respond to the PRLI and 1810 * transition to UNMAPPED provided the RPI has completed 1811 * registration. 1812 */ 1813 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 1814 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1815 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1816 } else { 1817 /* RPI registration has not completed. Reject the PRLI 1818 * to prevent an illegal state transition when the 1819 * rpi registration does complete. 1820 */ 1821 memset(&stat, 0, sizeof(struct ls_rjt)); 1822 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1823 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1824 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1825 ndlp, NULL); 1826 return ndlp->nlp_state; 1827 } 1828 } else { 1829 /* Initiator mode. */ 1830 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1831 } 1832 return ndlp->nlp_state; 1833 } 1834 1835 static uint32_t 1836 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1837 struct lpfc_nodelist *ndlp, 1838 void *arg, 1839 uint32_t evt) 1840 { 1841 struct lpfc_hba *phba = vport->phba; 1842 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1843 LPFC_MBOXQ_t *mb; 1844 LPFC_MBOXQ_t *nextmb; 1845 struct lpfc_nodelist *ns_ndlp; 1846 1847 cmdiocb = (struct lpfc_iocbq *) arg; 1848 1849 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1850 if ((mb = phba->sli.mbox_active)) { 1851 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1852 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1853 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1854 lpfc_nlp_put(ndlp); 1855 mb->ctx_ndlp = NULL; 1856 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1857 } 1858 } 1859 1860 spin_lock_irq(&phba->hbalock); 1861 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1862 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1863 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1864 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1865 lpfc_nlp_put(ndlp); 1866 list_del(&mb->list); 1867 phba->sli.mboxq_cnt--; 1868 lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_LOCKED); 1869 } 1870 } 1871 spin_unlock_irq(&phba->hbalock); 1872 1873 /* software abort if any GID_FT is outstanding */ 1874 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 1875 ns_ndlp = lpfc_findnode_did(vport, NameServer_DID); 1876 if (ns_ndlp) 1877 lpfc_els_abort(phba, ns_ndlp); 1878 } 1879 1880 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1881 return ndlp->nlp_state; 1882 } 1883 1884 static uint32_t 1885 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1886 struct lpfc_nodelist *ndlp, 1887 void *arg, 1888 uint32_t evt) 1889 { 1890 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1891 1892 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1893 return ndlp->nlp_state; 1894 } 1895 1896 static uint32_t 1897 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1898 struct lpfc_nodelist *ndlp, 1899 void *arg, 1900 uint32_t evt) 1901 { 1902 struct lpfc_iocbq *cmdiocb; 1903 1904 cmdiocb = (struct lpfc_iocbq *) arg; 1905 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1906 return ndlp->nlp_state; 1907 } 1908 1909 static uint32_t 1910 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1911 struct lpfc_nodelist *ndlp, 1912 void *arg, 1913 uint32_t evt) 1914 { 1915 struct lpfc_hba *phba = vport->phba; 1916 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1917 MAILBOX_t *mb = &pmb->u.mb; 1918 uint32_t did = mb->un.varWords[1]; 1919 1920 if (mb->mbxStatus) { 1921 /* RegLogin failed */ 1922 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1923 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1924 "x%x\n", 1925 did, mb->mbxStatus, vport->port_state, 1926 mb->un.varRegLogin.vpi, 1927 mb->un.varRegLogin.rpi); 1928 /* 1929 * If RegLogin failed due to lack of HBA resources do not 1930 * retry discovery. 1931 */ 1932 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1933 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1934 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1935 return ndlp->nlp_state; 1936 } 1937 1938 /* Put ndlp in npr state set plogi timer for 1 sec */ 1939 mod_timer(&ndlp->nlp_delayfunc, 1940 jiffies + msecs_to_jiffies(1000 * 1)); 1941 spin_lock_irq(&ndlp->lock); 1942 ndlp->nlp_flag |= NLP_DELAY_TMO; 1943 spin_unlock_irq(&ndlp->lock); 1944 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1945 1946 lpfc_issue_els_logo(vport, ndlp, 0); 1947 return ndlp->nlp_state; 1948 } 1949 1950 /* SLI4 ports have preallocated logical rpis. */ 1951 if (phba->sli_rev < LPFC_SLI_REV4) 1952 ndlp->nlp_rpi = mb->un.varWords[0]; 1953 1954 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1955 1956 /* Only if we are not a fabric nport do we issue PRLI */ 1957 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1958 "3066 RegLogin Complete on x%x x%x x%x\n", 1959 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 1960 if (!(ndlp->nlp_type & NLP_FABRIC) && 1961 (phba->nvmet_support == 0)) { 1962 /* The driver supports FCP and NVME concurrently. If the 1963 * ndlp's nlp_fc4_type is still zero, the driver doesn't 1964 * know what PRLI to send yet. Figure that out now and 1965 * call PRLI depending on the outcome. 1966 */ 1967 if (vport->fc_flag & FC_PT2PT) { 1968 /* If we are pt2pt, there is no Fabric to determine 1969 * the FC4 type of the remote nport. So if NVME 1970 * is configured try it. 1971 */ 1972 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1973 if ((!(vport->fc_flag & FC_PT2PT_NO_NVME)) && 1974 (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH || 1975 vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1976 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1977 /* We need to update the localport also */ 1978 lpfc_nvme_update_localport(vport); 1979 } 1980 1981 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 1982 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1983 1984 } else if (ndlp->nlp_fc4_type == 0) { 1985 /* If we are only configured for FCP, the driver 1986 * should just issue PRLI for FCP. Otherwise issue 1987 * GFT_ID to determine if remote port supports NVME. 1988 */ 1989 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 1990 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0, 1991 ndlp->nlp_DID); 1992 return ndlp->nlp_state; 1993 } 1994 ndlp->nlp_fc4_type = NLP_FC4_FCP; 1995 } 1996 1997 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1998 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 1999 if (lpfc_issue_els_prli(vport, ndlp, 0)) { 2000 lpfc_issue_els_logo(vport, ndlp, 0); 2001 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2002 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2003 } 2004 } else { 2005 if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support) 2006 phba->targetport->port_id = vport->fc_myDID; 2007 2008 /* Only Fabric ports should transition. NVME target 2009 * must complete PRLI. 2010 */ 2011 if (ndlp->nlp_type & NLP_FABRIC) { 2012 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2013 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2014 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2015 } 2016 } 2017 return ndlp->nlp_state; 2018 } 2019 2020 static uint32_t 2021 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 2022 struct lpfc_nodelist *ndlp, 2023 void *arg, 2024 uint32_t evt) 2025 { 2026 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2027 spin_lock_irq(&ndlp->lock); 2028 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2029 spin_unlock_irq(&ndlp->lock); 2030 return ndlp->nlp_state; 2031 } else { 2032 lpfc_drop_node(vport, ndlp); 2033 return NLP_STE_FREED_NODE; 2034 } 2035 } 2036 2037 static uint32_t 2038 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 2039 struct lpfc_nodelist *ndlp, 2040 void *arg, 2041 uint32_t evt) 2042 { 2043 /* Don't do anything that will mess up processing of the 2044 * previous RSCN. 2045 */ 2046 if (vport->fc_flag & FC_RSCN_DEFERRED) 2047 return ndlp->nlp_state; 2048 2049 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2050 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2051 spin_lock_irq(&ndlp->lock); 2052 2053 /* If we are a target we won't immediately transition into PRLI, 2054 * so if REG_LOGIN already completed we don't need to ignore it. 2055 */ 2056 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) || 2057 !vport->phba->nvmet_support) 2058 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 2059 2060 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2061 spin_unlock_irq(&ndlp->lock); 2062 lpfc_disc_set_adisc(vport, ndlp); 2063 return ndlp->nlp_state; 2064 } 2065 2066 static uint32_t 2067 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2068 void *arg, uint32_t evt) 2069 { 2070 struct lpfc_iocbq *cmdiocb; 2071 2072 cmdiocb = (struct lpfc_iocbq *) arg; 2073 2074 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2075 return ndlp->nlp_state; 2076 } 2077 2078 static uint32_t 2079 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2080 void *arg, uint32_t evt) 2081 { 2082 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2083 2084 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2085 return ndlp->nlp_state; 2086 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2087 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2088 return ndlp->nlp_state; 2089 } 2090 2091 static uint32_t 2092 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2093 void *arg, uint32_t evt) 2094 { 2095 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2096 2097 /* Software abort outstanding PRLI before sending acc */ 2098 lpfc_els_abort(vport->phba, ndlp); 2099 2100 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2101 return ndlp->nlp_state; 2102 } 2103 2104 static uint32_t 2105 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2106 void *arg, uint32_t evt) 2107 { 2108 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2109 2110 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2111 return ndlp->nlp_state; 2112 } 2113 2114 /* This routine is envoked when we rcv a PRLO request from a nport 2115 * we are logged into. We should send back a PRLO rsp setting the 2116 * appropriate bits. 2117 * NEXT STATE = PRLI_ISSUE 2118 */ 2119 static uint32_t 2120 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2121 void *arg, uint32_t evt) 2122 { 2123 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2124 2125 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2126 return ndlp->nlp_state; 2127 } 2128 2129 static uint32_t 2130 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2131 void *arg, uint32_t evt) 2132 { 2133 struct lpfc_iocbq *cmdiocb, *rspiocb; 2134 struct lpfc_hba *phba = vport->phba; 2135 PRLI *npr; 2136 struct lpfc_nvme_prli *nvpr; 2137 void *temp_ptr; 2138 u32 ulp_status; 2139 2140 cmdiocb = (struct lpfc_iocbq *) arg; 2141 rspiocb = cmdiocb->rsp_iocb; 2142 2143 ulp_status = get_job_ulpstatus(phba, rspiocb); 2144 2145 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 2146 * format is different so NULL the two PRLI types so that the 2147 * driver correctly gets the correct context. 2148 */ 2149 npr = NULL; 2150 nvpr = NULL; 2151 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 2152 if (cmdiocb->cmd_flag & LPFC_PRLI_FCP_REQ) 2153 npr = (PRLI *) temp_ptr; 2154 else if (cmdiocb->cmd_flag & LPFC_PRLI_NVME_REQ) 2155 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 2156 2157 if (ulp_status) { 2158 if ((vport->port_type == LPFC_NPIV_PORT) && 2159 vport->cfg_restrict_login) { 2160 goto out; 2161 } 2162 2163 /* Adjust the nlp_type accordingly if the PRLI failed */ 2164 if (npr) 2165 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2166 if (nvpr) 2167 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 2168 2169 /* We can't set the DSM state till BOTH PRLIs complete */ 2170 goto out_err; 2171 } 2172 2173 if (npr && (npr->acceptRspCode == PRLI_REQ_EXECUTED) && 2174 (npr->prliType == PRLI_FCP_TYPE)) { 2175 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2176 "6028 FCP NPR PRLI Cmpl Init %d Target %d\n", 2177 npr->initiatorFunc, 2178 npr->targetFunc); 2179 if (npr->initiatorFunc) 2180 ndlp->nlp_type |= NLP_FCP_INITIATOR; 2181 if (npr->targetFunc) { 2182 ndlp->nlp_type |= NLP_FCP_TARGET; 2183 if (npr->writeXferRdyDis) 2184 ndlp->nlp_flag |= NLP_FIRSTBURST; 2185 } 2186 if (npr->Retry) 2187 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 2188 2189 } else if (nvpr && 2190 (bf_get_be32(prli_acc_rsp_code, nvpr) == 2191 PRLI_REQ_EXECUTED) && 2192 (bf_get_be32(prli_type_code, nvpr) == 2193 PRLI_NVME_TYPE)) { 2194 2195 /* Complete setting up the remote ndlp personality. */ 2196 if (bf_get_be32(prli_init, nvpr)) 2197 ndlp->nlp_type |= NLP_NVME_INITIATOR; 2198 2199 if (phba->nsler && bf_get_be32(prli_nsler, nvpr) && 2200 bf_get_be32(prli_conf, nvpr)) 2201 2202 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 2203 else 2204 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 2205 2206 /* Target driver cannot solicit NVME FB. */ 2207 if (bf_get_be32(prli_tgt, nvpr)) { 2208 /* Complete the nvme target roles. The transport 2209 * needs to know if the rport is capable of 2210 * discovery in addition to its role. 2211 */ 2212 ndlp->nlp_type |= NLP_NVME_TARGET; 2213 if (bf_get_be32(prli_disc, nvpr)) 2214 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 2215 2216 /* 2217 * If prli_fba is set, the Target supports FirstBurst. 2218 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 2219 * otherwise it defines the actual size supported by 2220 * the NVME Target. 2221 */ 2222 if ((bf_get_be32(prli_fba, nvpr) == 1) && 2223 (phba->cfg_nvme_enable_fb) && 2224 (!phba->nvmet_support)) { 2225 /* Both sides support FB. The target's first 2226 * burst size is a 512 byte encoded value. 2227 */ 2228 ndlp->nlp_flag |= NLP_FIRSTBURST; 2229 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2230 nvpr); 2231 2232 /* Expressed in units of 512 bytes */ 2233 if (ndlp->nvme_fb_size) 2234 ndlp->nvme_fb_size <<= 2235 LPFC_NVME_FB_SHIFT; 2236 else 2237 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2238 } 2239 } 2240 2241 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2242 "6029 NVME PRLI Cmpl w1 x%08x " 2243 "w4 x%08x w5 x%08x flag x%x, " 2244 "fcp_info x%x nlp_type x%x\n", 2245 be32_to_cpu(nvpr->word1), 2246 be32_to_cpu(nvpr->word4), 2247 be32_to_cpu(nvpr->word5), 2248 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2249 ndlp->nlp_type); 2250 } 2251 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2252 (vport->port_type == LPFC_NPIV_PORT) && 2253 vport->cfg_restrict_login) { 2254 out: 2255 spin_lock_irq(&ndlp->lock); 2256 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 2257 spin_unlock_irq(&ndlp->lock); 2258 lpfc_issue_els_logo(vport, ndlp, 0); 2259 2260 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2261 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2262 return ndlp->nlp_state; 2263 } 2264 2265 out_err: 2266 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2267 * are complete. 2268 */ 2269 if (ndlp->fc4_prli_sent == 0) { 2270 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2271 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2272 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2273 else if (ndlp->nlp_type & 2274 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2275 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2276 } else 2277 lpfc_printf_vlog(vport, 2278 KERN_INFO, LOG_ELS, 2279 "3067 PRLI's still outstanding " 2280 "on x%06x - count %d, Pend Node Mode " 2281 "transition...\n", 2282 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2283 2284 return ndlp->nlp_state; 2285 } 2286 2287 /*! lpfc_device_rm_prli_issue 2288 * 2289 * \pre 2290 * \post 2291 * \param phba 2292 * \param ndlp 2293 * \param arg 2294 * \param evt 2295 * \return uint32_t 2296 * 2297 * \b Description: 2298 * This routine is envoked when we a request to remove a nport we are in the 2299 * process of PRLIing. We should software abort outstanding prli, unreg 2300 * login, send a logout. We will change node state to UNUSED_NODE, put it 2301 * on plogi list so it can be freed when LOGO completes. 2302 * 2303 */ 2304 2305 static uint32_t 2306 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2307 void *arg, uint32_t evt) 2308 { 2309 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2310 spin_lock_irq(&ndlp->lock); 2311 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2312 spin_unlock_irq(&ndlp->lock); 2313 return ndlp->nlp_state; 2314 } else { 2315 /* software abort outstanding PLOGI */ 2316 lpfc_els_abort(vport->phba, ndlp); 2317 2318 lpfc_drop_node(vport, ndlp); 2319 return NLP_STE_FREED_NODE; 2320 } 2321 } 2322 2323 2324 /*! lpfc_device_recov_prli_issue 2325 * 2326 * \pre 2327 * \post 2328 * \param phba 2329 * \param ndlp 2330 * \param arg 2331 * \param evt 2332 * \return uint32_t 2333 * 2334 * \b Description: 2335 * The routine is envoked when the state of a device is unknown, like 2336 * during a link down. We should remove the nodelist entry from the 2337 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2338 * outstanding PRLI command, then free the node entry. 2339 */ 2340 static uint32_t 2341 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2342 struct lpfc_nodelist *ndlp, 2343 void *arg, 2344 uint32_t evt) 2345 { 2346 struct lpfc_hba *phba = vport->phba; 2347 2348 /* Don't do anything that will mess up processing of the 2349 * previous RSCN. 2350 */ 2351 if (vport->fc_flag & FC_RSCN_DEFERRED) 2352 return ndlp->nlp_state; 2353 2354 /* software abort outstanding PRLI */ 2355 lpfc_els_abort(phba, ndlp); 2356 2357 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2358 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2359 spin_lock_irq(&ndlp->lock); 2360 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2361 spin_unlock_irq(&ndlp->lock); 2362 lpfc_disc_set_adisc(vport, ndlp); 2363 return ndlp->nlp_state; 2364 } 2365 2366 static uint32_t 2367 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2368 void *arg, uint32_t evt) 2369 { 2370 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2371 struct ls_rjt stat; 2372 2373 memset(&stat, 0, sizeof(struct ls_rjt)); 2374 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2375 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2376 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2377 return ndlp->nlp_state; 2378 } 2379 2380 static uint32_t 2381 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2382 void *arg, uint32_t evt) 2383 { 2384 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2385 struct ls_rjt stat; 2386 2387 memset(&stat, 0, sizeof(struct ls_rjt)); 2388 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2389 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2390 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2391 return ndlp->nlp_state; 2392 } 2393 2394 static uint32_t 2395 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2396 void *arg, uint32_t evt) 2397 { 2398 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2399 2400 spin_lock_irq(&ndlp->lock); 2401 ndlp->nlp_flag |= NLP_LOGO_ACC; 2402 spin_unlock_irq(&ndlp->lock); 2403 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2404 return ndlp->nlp_state; 2405 } 2406 2407 static uint32_t 2408 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2409 void *arg, uint32_t evt) 2410 { 2411 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2412 struct ls_rjt stat; 2413 2414 memset(&stat, 0, sizeof(struct ls_rjt)); 2415 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2416 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2417 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2418 return ndlp->nlp_state; 2419 } 2420 2421 static uint32_t 2422 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2423 void *arg, uint32_t evt) 2424 { 2425 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2426 struct ls_rjt stat; 2427 2428 memset(&stat, 0, sizeof(struct ls_rjt)); 2429 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2430 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2431 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2432 return ndlp->nlp_state; 2433 } 2434 2435 static uint32_t 2436 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2437 void *arg, uint32_t evt) 2438 { 2439 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2440 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2441 spin_lock_irq(&ndlp->lock); 2442 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2443 spin_unlock_irq(&ndlp->lock); 2444 lpfc_disc_set_adisc(vport, ndlp); 2445 return ndlp->nlp_state; 2446 } 2447 2448 static uint32_t 2449 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2450 void *arg, uint32_t evt) 2451 { 2452 /* 2453 * DevLoss has timed out and is calling for Device Remove. 2454 * In this case, abort the LOGO and cleanup the ndlp 2455 */ 2456 2457 lpfc_unreg_rpi(vport, ndlp); 2458 /* software abort outstanding PLOGI */ 2459 lpfc_els_abort(vport->phba, ndlp); 2460 lpfc_drop_node(vport, ndlp); 2461 return NLP_STE_FREED_NODE; 2462 } 2463 2464 static uint32_t 2465 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2466 struct lpfc_nodelist *ndlp, 2467 void *arg, uint32_t evt) 2468 { 2469 /* 2470 * Device Recovery events have no meaning for a node with a LOGO 2471 * outstanding. The LOGO has to complete first and handle the 2472 * node from that point. 2473 */ 2474 return ndlp->nlp_state; 2475 } 2476 2477 static uint32_t 2478 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2479 void *arg, uint32_t evt) 2480 { 2481 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2482 2483 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2484 return ndlp->nlp_state; 2485 } 2486 2487 static uint32_t 2488 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2489 void *arg, uint32_t evt) 2490 { 2491 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2492 2493 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2494 return ndlp->nlp_state; 2495 2496 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2497 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2498 return ndlp->nlp_state; 2499 } 2500 2501 static uint32_t 2502 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2503 void *arg, uint32_t evt) 2504 { 2505 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2506 2507 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2508 return ndlp->nlp_state; 2509 } 2510 2511 static uint32_t 2512 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2513 void *arg, uint32_t evt) 2514 { 2515 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2516 2517 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2518 return ndlp->nlp_state; 2519 } 2520 2521 static uint32_t 2522 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2523 void *arg, uint32_t evt) 2524 { 2525 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2526 2527 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2528 return ndlp->nlp_state; 2529 } 2530 2531 static uint32_t 2532 lpfc_device_rm_unmap_node(struct lpfc_vport *vport, 2533 struct lpfc_nodelist *ndlp, 2534 void *arg, 2535 uint32_t evt) 2536 { 2537 lpfc_drop_node(vport, ndlp); 2538 return NLP_STE_FREED_NODE; 2539 } 2540 2541 static uint32_t 2542 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2543 struct lpfc_nodelist *ndlp, 2544 void *arg, 2545 uint32_t evt) 2546 { 2547 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2548 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2549 spin_lock_irq(&ndlp->lock); 2550 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2551 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2552 spin_unlock_irq(&ndlp->lock); 2553 lpfc_disc_set_adisc(vport, ndlp); 2554 2555 return ndlp->nlp_state; 2556 } 2557 2558 static uint32_t 2559 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2560 void *arg, uint32_t evt) 2561 { 2562 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2563 2564 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2565 return ndlp->nlp_state; 2566 } 2567 2568 static uint32_t 2569 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2570 void *arg, uint32_t evt) 2571 { 2572 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2573 2574 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2575 return ndlp->nlp_state; 2576 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2577 return ndlp->nlp_state; 2578 } 2579 2580 static uint32_t 2581 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2582 void *arg, uint32_t evt) 2583 { 2584 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2585 2586 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2587 return ndlp->nlp_state; 2588 } 2589 2590 static uint32_t 2591 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2592 struct lpfc_nodelist *ndlp, 2593 void *arg, uint32_t evt) 2594 { 2595 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2596 2597 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2598 return ndlp->nlp_state; 2599 } 2600 2601 static uint32_t 2602 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2603 void *arg, uint32_t evt) 2604 { 2605 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2606 2607 /* flush the target */ 2608 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2609 2610 /* Treat like rcv logo */ 2611 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2612 return ndlp->nlp_state; 2613 } 2614 2615 static uint32_t 2616 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2617 struct lpfc_nodelist *ndlp, 2618 void *arg, 2619 uint32_t evt) 2620 { 2621 lpfc_disc_set_adisc(vport, ndlp); 2622 2623 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2624 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2625 spin_lock_irq(&ndlp->lock); 2626 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2627 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2628 spin_unlock_irq(&ndlp->lock); 2629 return ndlp->nlp_state; 2630 } 2631 2632 static uint32_t 2633 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2634 void *arg, uint32_t evt) 2635 { 2636 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2637 2638 /* Ignore PLOGI if we have an outstanding LOGO */ 2639 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2640 return ndlp->nlp_state; 2641 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2642 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2643 spin_lock_irq(&ndlp->lock); 2644 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2645 spin_unlock_irq(&ndlp->lock); 2646 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2647 /* send PLOGI immediately, move to PLOGI issue state */ 2648 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2649 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2650 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2651 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2652 } 2653 } 2654 return ndlp->nlp_state; 2655 } 2656 2657 static uint32_t 2658 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2659 void *arg, uint32_t evt) 2660 { 2661 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2662 struct ls_rjt stat; 2663 2664 memset(&stat, 0, sizeof (struct ls_rjt)); 2665 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2666 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2667 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2668 2669 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2670 /* 2671 * ADISC nodes will be handled in regular discovery path after 2672 * receiving response from NS. 2673 * 2674 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2675 */ 2676 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2677 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2678 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2679 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2680 } 2681 } 2682 return ndlp->nlp_state; 2683 } 2684 2685 static uint32_t 2686 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2687 void *arg, uint32_t evt) 2688 { 2689 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2690 2691 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2692 return ndlp->nlp_state; 2693 } 2694 2695 static uint32_t 2696 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2697 void *arg, uint32_t evt) 2698 { 2699 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2700 2701 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2702 /* 2703 * Do not start discovery if discovery is about to start 2704 * or discovery in progress for this node. Starting discovery 2705 * here will affect the counting of discovery threads. 2706 */ 2707 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2708 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2709 /* 2710 * ADISC nodes will be handled in regular discovery path after 2711 * receiving response from NS. 2712 * 2713 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2714 */ 2715 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2716 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2717 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2718 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2719 } 2720 } 2721 return ndlp->nlp_state; 2722 } 2723 2724 static uint32_t 2725 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2726 void *arg, uint32_t evt) 2727 { 2728 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2729 2730 spin_lock_irq(&ndlp->lock); 2731 ndlp->nlp_flag |= NLP_LOGO_ACC; 2732 spin_unlock_irq(&ndlp->lock); 2733 2734 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2735 2736 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2737 mod_timer(&ndlp->nlp_delayfunc, 2738 jiffies + msecs_to_jiffies(1000 * 1)); 2739 spin_lock_irq(&ndlp->lock); 2740 ndlp->nlp_flag |= NLP_DELAY_TMO; 2741 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2742 spin_unlock_irq(&ndlp->lock); 2743 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2744 } else { 2745 spin_lock_irq(&ndlp->lock); 2746 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2747 spin_unlock_irq(&ndlp->lock); 2748 } 2749 return ndlp->nlp_state; 2750 } 2751 2752 static uint32_t 2753 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2754 void *arg, uint32_t evt) 2755 { 2756 struct lpfc_hba *phba = vport->phba; 2757 struct lpfc_iocbq *cmdiocb, *rspiocb; 2758 u32 ulp_status; 2759 2760 cmdiocb = (struct lpfc_iocbq *) arg; 2761 rspiocb = cmdiocb->rsp_iocb; 2762 2763 ulp_status = get_job_ulpstatus(phba, rspiocb); 2764 2765 if (ulp_status) 2766 return NLP_STE_FREED_NODE; 2767 2768 return ndlp->nlp_state; 2769 } 2770 2771 static uint32_t 2772 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2773 void *arg, uint32_t evt) 2774 { 2775 struct lpfc_hba *phba = vport->phba; 2776 struct lpfc_iocbq *cmdiocb, *rspiocb; 2777 u32 ulp_status; 2778 2779 cmdiocb = (struct lpfc_iocbq *) arg; 2780 rspiocb = cmdiocb->rsp_iocb; 2781 2782 ulp_status = get_job_ulpstatus(phba, rspiocb); 2783 2784 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2785 lpfc_drop_node(vport, ndlp); 2786 return NLP_STE_FREED_NODE; 2787 } 2788 return ndlp->nlp_state; 2789 } 2790 2791 static uint32_t 2792 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2793 void *arg, uint32_t evt) 2794 { 2795 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2796 2797 /* For the fabric port just clear the fc flags. */ 2798 if (ndlp->nlp_DID == Fabric_DID) { 2799 spin_lock_irq(shost->host_lock); 2800 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2801 spin_unlock_irq(shost->host_lock); 2802 } 2803 lpfc_unreg_rpi(vport, ndlp); 2804 return ndlp->nlp_state; 2805 } 2806 2807 static uint32_t 2808 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2809 void *arg, uint32_t evt) 2810 { 2811 struct lpfc_hba *phba = vport->phba; 2812 struct lpfc_iocbq *cmdiocb, *rspiocb; 2813 u32 ulp_status; 2814 2815 cmdiocb = (struct lpfc_iocbq *) arg; 2816 rspiocb = cmdiocb->rsp_iocb; 2817 2818 ulp_status = get_job_ulpstatus(phba, rspiocb); 2819 2820 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2821 lpfc_drop_node(vport, ndlp); 2822 return NLP_STE_FREED_NODE; 2823 } 2824 return ndlp->nlp_state; 2825 } 2826 2827 static uint32_t 2828 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2829 struct lpfc_nodelist *ndlp, 2830 void *arg, uint32_t evt) 2831 { 2832 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2833 MAILBOX_t *mb = &pmb->u.mb; 2834 2835 if (!mb->mbxStatus) { 2836 /* SLI4 ports have preallocated logical rpis. */ 2837 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2838 ndlp->nlp_rpi = mb->un.varWords[0]; 2839 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2840 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 2841 lpfc_unreg_rpi(vport, ndlp); 2842 } 2843 } else { 2844 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2845 lpfc_drop_node(vport, ndlp); 2846 return NLP_STE_FREED_NODE; 2847 } 2848 } 2849 return ndlp->nlp_state; 2850 } 2851 2852 static uint32_t 2853 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2854 void *arg, uint32_t evt) 2855 { 2856 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2857 spin_lock_irq(&ndlp->lock); 2858 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2859 spin_unlock_irq(&ndlp->lock); 2860 return ndlp->nlp_state; 2861 } 2862 lpfc_drop_node(vport, ndlp); 2863 return NLP_STE_FREED_NODE; 2864 } 2865 2866 static uint32_t 2867 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2868 void *arg, uint32_t evt) 2869 { 2870 /* Don't do anything that will mess up processing of the 2871 * previous RSCN. 2872 */ 2873 if (vport->fc_flag & FC_RSCN_DEFERRED) 2874 return ndlp->nlp_state; 2875 2876 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2877 spin_lock_irq(&ndlp->lock); 2878 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2879 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2880 spin_unlock_irq(&ndlp->lock); 2881 return ndlp->nlp_state; 2882 } 2883 2884 2885 /* This next section defines the NPort Discovery State Machine */ 2886 2887 /* There are 4 different double linked lists nodelist entries can reside on. 2888 * The plogi list and adisc list are used when Link Up discovery or RSCN 2889 * processing is needed. Each list holds the nodes that we will send PLOGI 2890 * or ADISC on. These lists will keep track of what nodes will be effected 2891 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2892 * The unmapped_list will contain all nodes that we have successfully logged 2893 * into at the Fibre Channel level. The mapped_list will contain all nodes 2894 * that are mapped FCP targets. 2895 */ 2896 /* 2897 * The bind list is a list of undiscovered (potentially non-existent) nodes 2898 * that we have saved binding information on. This information is used when 2899 * nodes transition from the unmapped to the mapped list. 2900 */ 2901 /* For UNUSED_NODE state, the node has just been allocated . 2902 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2903 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2904 * and put on the unmapped list. For ADISC processing, the node is taken off 2905 * the ADISC list and placed on either the mapped or unmapped list (depending 2906 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2907 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2908 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2909 * node, the node is taken off the unmapped list. The binding list is checked 2910 * for a valid binding, or a binding is automatically assigned. If binding 2911 * assignment is unsuccessful, the node is left on the unmapped list. If 2912 * binding assignment is successful, the associated binding list entry (if 2913 * any) is removed, and the node is placed on the mapped list. 2914 */ 2915 /* 2916 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2917 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2918 * expire, all effected nodes will receive a DEVICE_RM event. 2919 */ 2920 /* 2921 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2922 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2923 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2924 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2925 * we will first process the ADISC list. 32 entries are processed initially and 2926 * ADISC is initited for each one. Completions / Events for each node are 2927 * funnelled thru the state machine. As each node finishes ADISC processing, it 2928 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2929 * waiting, and the ADISC list count is identically 0, then we are done. For 2930 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2931 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2932 * list. 32 entries are processed initially and PLOGI is initited for each one. 2933 * Completions / Events for each node are funnelled thru the state machine. As 2934 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2935 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2936 * indentically 0, then we are done. We have now completed discovery / RSCN 2937 * handling. Upon completion, ALL nodes should be on either the mapped or 2938 * unmapped lists. 2939 */ 2940 2941 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2942 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2943 /* Action routine Event Current State */ 2944 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2945 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2946 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2947 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2948 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2949 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2950 lpfc_disc_illegal, /* CMPL_PLOGI */ 2951 lpfc_disc_illegal, /* CMPL_PRLI */ 2952 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2953 lpfc_disc_illegal, /* CMPL_ADISC */ 2954 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2955 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2956 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2957 2958 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2959 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2960 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2961 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2962 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2963 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2964 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2965 lpfc_disc_illegal, /* CMPL_PRLI */ 2966 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2967 lpfc_disc_illegal, /* CMPL_ADISC */ 2968 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2969 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2970 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2971 2972 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2973 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 2974 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 2975 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 2976 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 2977 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 2978 lpfc_disc_illegal, /* CMPL_PLOGI */ 2979 lpfc_disc_illegal, /* CMPL_PRLI */ 2980 lpfc_disc_illegal, /* CMPL_LOGO */ 2981 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 2982 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2983 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 2984 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 2985 2986 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 2987 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 2988 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 2989 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 2990 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 2991 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 2992 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2993 lpfc_disc_illegal, /* CMPL_PRLI */ 2994 lpfc_disc_illegal, /* CMPL_LOGO */ 2995 lpfc_disc_illegal, /* CMPL_ADISC */ 2996 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 2997 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 2998 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 2999 3000 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 3001 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 3002 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 3003 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 3004 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 3005 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 3006 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3007 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 3008 lpfc_disc_illegal, /* CMPL_LOGO */ 3009 lpfc_disc_illegal, /* CMPL_ADISC */ 3010 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3011 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 3012 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 3013 3014 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 3015 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 3016 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 3017 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 3018 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 3019 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 3020 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3021 lpfc_disc_illegal, /* CMPL_PRLI */ 3022 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 3023 lpfc_disc_illegal, /* CMPL_ADISC */ 3024 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3025 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 3026 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 3027 3028 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 3029 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 3030 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 3031 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 3032 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 3033 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 3034 lpfc_disc_illegal, /* CMPL_PLOGI */ 3035 lpfc_disc_illegal, /* CMPL_PRLI */ 3036 lpfc_disc_illegal, /* CMPL_LOGO */ 3037 lpfc_disc_illegal, /* CMPL_ADISC */ 3038 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3039 lpfc_device_rm_unmap_node, /* DEVICE_RM */ 3040 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 3041 3042 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 3043 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 3044 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 3045 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 3046 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 3047 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 3048 lpfc_disc_illegal, /* CMPL_PLOGI */ 3049 lpfc_disc_illegal, /* CMPL_PRLI */ 3050 lpfc_disc_illegal, /* CMPL_LOGO */ 3051 lpfc_disc_illegal, /* CMPL_ADISC */ 3052 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3053 lpfc_disc_illegal, /* DEVICE_RM */ 3054 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 3055 3056 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 3057 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 3058 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 3059 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 3060 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 3061 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 3062 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 3063 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 3064 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 3065 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 3066 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 3067 lpfc_device_rm_npr_node, /* DEVICE_RM */ 3068 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 3069 }; 3070 3071 int 3072 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3073 void *arg, uint32_t evt) 3074 { 3075 uint32_t cur_state, rc; 3076 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 3077 uint32_t); 3078 uint32_t got_ndlp = 0; 3079 uint32_t data1; 3080 3081 if (lpfc_nlp_get(ndlp)) 3082 got_ndlp = 1; 3083 3084 cur_state = ndlp->nlp_state; 3085 3086 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3087 ((uint32_t)ndlp->nlp_type)); 3088 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 3089 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3090 "0211 DSM in event x%x on NPort x%x in " 3091 "state %d rpi x%x Data: x%x x%x\n", 3092 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, 3093 ndlp->nlp_flag, data1); 3094 3095 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3096 "DSM in: evt:%d ste:%d did:x%x", 3097 evt, cur_state, ndlp->nlp_DID); 3098 3099 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 3100 rc = (func) (vport, ndlp, arg, evt); 3101 3102 /* DSM out state <rc> on NPort <nlp_DID> */ 3103 if (got_ndlp) { 3104 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3105 ((uint32_t)ndlp->nlp_type)); 3106 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3107 "0212 DSM out state %d on NPort x%x " 3108 "rpi x%x Data: x%x x%x\n", 3109 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag, 3110 data1); 3111 3112 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3113 "DSM out: ste:%d did:x%x flg:x%x", 3114 rc, ndlp->nlp_DID, ndlp->nlp_flag); 3115 /* Decrement the ndlp reference count held for this function */ 3116 lpfc_nlp_put(ndlp); 3117 } else { 3118 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3119 "0213 DSM out state %d on NPort free\n", rc); 3120 3121 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3122 "DSM out: ste:%d did:x%x flg:x%x", 3123 rc, 0, 0); 3124 } 3125 3126 return rc; 3127 } 3128