1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2023 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; 516 517 /* The default completion handling for CONFIG_LINK 518 * does not require the ndlp so no reference is needed. 519 */ 520 link_mbox->ctx_ndlp = ndlp; 521 522 rc = lpfc_sli_issue_mbox(phba, link_mbox, MBX_NOWAIT); 523 if (rc == MBX_NOT_FINISHED) { 524 mempool_free(link_mbox, phba->mbox_mem_pool); 525 goto out; 526 } 527 } 528 529 lpfc_can_disctmo(vport); 530 } 531 532 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 533 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 534 sp->cmn.valid_vendor_ver_level) { 535 vid = be32_to_cpu(sp->un.vv.vid); 536 flag = be32_to_cpu(sp->un.vv.flags); 537 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) 538 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 539 } 540 541 login_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 542 if (!login_mbox) 543 goto out; 544 545 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL); 546 if (!save_iocb) 547 goto out; 548 549 /* Save info from cmd IOCB to be used in rsp after all mbox completes */ 550 memcpy((uint8_t *)save_iocb, (uint8_t *)cmdiocb, 551 sizeof(struct lpfc_iocbq)); 552 553 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 554 if (phba->sli_rev == LPFC_SLI_REV4) 555 lpfc_unreg_rpi(vport, ndlp); 556 557 /* Issue REG_LOGIN first, before ACCing the PLOGI, thus we will 558 * always be deferring the ACC. 559 */ 560 if (phba->sli_rev == LPFC_SLI_REV4) 561 remote_did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest); 562 else 563 remote_did = icmd->un.rcvels.remoteID; 564 rc = lpfc_reg_rpi(phba, vport->vpi, remote_did, 565 (uint8_t *)sp, login_mbox, ndlp->nlp_rpi); 566 if (rc) 567 goto out; 568 569 login_mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 570 login_mbox->vport = vport; 571 572 /* 573 * If there is an outstanding PLOGI issued, abort it before 574 * sending ACC rsp for received PLOGI. If pending plogi 575 * is not canceled here, the plogi will be rejected by 576 * remote port and will be retried. On a configuration with 577 * single discovery thread, this will cause a huge delay in 578 * discovery. Also this will cause multiple state machines 579 * running in parallel for this node. 580 * This only applies to a fabric environment. 581 */ 582 if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) && 583 (vport->fc_flag & FC_FABRIC)) { 584 /* software abort outstanding PLOGI */ 585 lpfc_els_abort(phba, ndlp); 586 } 587 588 if ((vport->port_type == LPFC_NPIV_PORT && 589 vport->cfg_restrict_login)) { 590 591 /* no deferred ACC */ 592 kfree(save_iocb); 593 594 /* This is an NPIV SLI4 instance that does not need to register 595 * a default RPI. 596 */ 597 if (phba->sli_rev == LPFC_SLI_REV4) { 598 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 599 MBOX_THD_UNLOCKED); 600 login_mbox = NULL; 601 } else { 602 /* In order to preserve RPIs, we want to cleanup 603 * the default RPI the firmware created to rcv 604 * this ELS request. The only way to do this is 605 * to register, then unregister the RPI. 606 */ 607 spin_lock_irq(&ndlp->lock); 608 ndlp->nlp_flag |= (NLP_RM_DFLT_RPI | NLP_ACC_REGLOGIN | 609 NLP_RCV_PLOGI); 610 spin_unlock_irq(&ndlp->lock); 611 } 612 613 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 614 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 615 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 616 ndlp, login_mbox); 617 if (rc && login_mbox) 618 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 619 MBOX_THD_UNLOCKED); 620 return 1; 621 } 622 623 /* So the order here should be: 624 * SLI3 pt2pt 625 * Issue CONFIG_LINK mbox 626 * CONFIG_LINK cmpl 627 * SLI4 pt2pt 628 * Issue REG_VFI mbox 629 * REG_VFI cmpl 630 * SLI4 631 * Issue UNREG RPI mbx 632 * UNREG RPI cmpl 633 * Issue REG_RPI mbox 634 * REG RPI cmpl 635 * Issue PLOGI ACC 636 * PLOGI ACC cmpl 637 */ 638 login_mbox->mbox_cmpl = lpfc_defer_plogi_acc; 639 login_mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 640 if (!login_mbox->ctx_ndlp) 641 goto out; 642 643 login_mbox->context3 = save_iocb; /* For PLOGI ACC */ 644 645 spin_lock_irq(&ndlp->lock); 646 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 647 spin_unlock_irq(&ndlp->lock); 648 649 /* Start the ball rolling by issuing REG_LOGIN here */ 650 rc = lpfc_sli_issue_mbox(phba, login_mbox, MBX_NOWAIT); 651 if (rc == MBX_NOT_FINISHED) { 652 lpfc_nlp_put(ndlp); 653 goto out; 654 } 655 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); 656 657 return 1; 658 out: 659 kfree(save_iocb); 660 if (login_mbox) 661 mempool_free(login_mbox, phba->mbox_mem_pool); 662 663 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 664 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 665 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 666 return 0; 667 } 668 669 /** 670 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 671 * @phba: pointer to lpfc hba data structure. 672 * @mboxq: pointer to mailbox object 673 * 674 * This routine is invoked to issue a completion to a rcv'ed 675 * ADISC or PDISC after the paused RPI has been resumed. 676 **/ 677 static void 678 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 679 { 680 struct lpfc_vport *vport; 681 struct lpfc_iocbq *elsiocb; 682 struct lpfc_nodelist *ndlp; 683 uint32_t cmd; 684 685 elsiocb = (struct lpfc_iocbq *)mboxq->ctx_buf; 686 ndlp = (struct lpfc_nodelist *)mboxq->ctx_ndlp; 687 vport = mboxq->vport; 688 cmd = elsiocb->drvrTimeout; 689 690 if (cmd == ELS_CMD_ADISC) { 691 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 692 } else { 693 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 694 ndlp, NULL); 695 } 696 697 /* This nlp_put pairs with lpfc_sli4_resume_rpi */ 698 lpfc_nlp_put(ndlp); 699 700 kfree(elsiocb); 701 mempool_free(mboxq, phba->mbox_mem_pool); 702 } 703 704 static int 705 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 706 struct lpfc_iocbq *cmdiocb) 707 { 708 struct lpfc_hba *phba = vport->phba; 709 struct lpfc_iocbq *elsiocb; 710 struct lpfc_dmabuf *pcmd; 711 struct serv_parm *sp; 712 struct lpfc_name *pnn, *ppn; 713 struct ls_rjt stat; 714 ADISC *ap; 715 uint32_t *lp; 716 uint32_t cmd; 717 718 pcmd = cmdiocb->cmd_dmabuf; 719 lp = (uint32_t *) pcmd->virt; 720 721 cmd = *lp++; 722 if (cmd == ELS_CMD_ADISC) { 723 ap = (ADISC *) lp; 724 pnn = (struct lpfc_name *) & ap->nodeName; 725 ppn = (struct lpfc_name *) & ap->portName; 726 } else { 727 sp = (struct serv_parm *) lp; 728 pnn = (struct lpfc_name *) & sp->nodeName; 729 ppn = (struct lpfc_name *) & sp->portName; 730 } 731 732 if (get_job_ulpstatus(phba, cmdiocb) == 0 && 733 lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 734 735 /* 736 * As soon as we send ACC, the remote NPort can 737 * start sending us data. Thus, for SLI4 we must 738 * resume the RPI before the ACC goes out. 739 */ 740 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 741 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 742 GFP_KERNEL); 743 if (elsiocb) { 744 /* Save info from cmd IOCB used in rsp */ 745 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 746 sizeof(struct lpfc_iocbq)); 747 748 /* Save the ELS cmd */ 749 elsiocb->drvrTimeout = cmd; 750 751 lpfc_sli4_resume_rpi(ndlp, 752 lpfc_mbx_cmpl_resume_rpi, elsiocb); 753 goto out; 754 } 755 } 756 757 if (cmd == ELS_CMD_ADISC) { 758 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 759 } else { 760 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 761 ndlp, NULL); 762 } 763 out: 764 /* If we are authenticated, move to the proper state. 765 * It is possible an ADISC arrived and the remote nport 766 * is already in MAPPED or UNMAPPED state. Catch this 767 * condition and don't set the nlp_state again because 768 * it causes an unnecessary transport unregister/register. 769 * 770 * Nodes marked for ADISC will move MAPPED or UNMAPPED state 771 * after issuing ADISC 772 */ 773 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 774 if ((ndlp->nlp_state != NLP_STE_MAPPED_NODE) && 775 !(ndlp->nlp_flag & NLP_NPR_ADISC)) 776 lpfc_nlp_set_state(vport, ndlp, 777 NLP_STE_MAPPED_NODE); 778 } 779 780 return 1; 781 } 782 /* Reject this request because invalid parameters */ 783 stat.un.b.lsRjtRsvd0 = 0; 784 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 785 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 786 stat.un.b.vendorUnique = 0; 787 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 788 789 /* 1 sec timeout */ 790 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 791 792 spin_lock_irq(&ndlp->lock); 793 ndlp->nlp_flag |= NLP_DELAY_TMO; 794 spin_unlock_irq(&ndlp->lock); 795 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 796 ndlp->nlp_prev_state = ndlp->nlp_state; 797 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 798 return 0; 799 } 800 801 static int 802 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 803 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 804 { 805 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 806 struct lpfc_hba *phba = vport->phba; 807 struct lpfc_vport **vports; 808 int i, active_vlink_present = 0 ; 809 810 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 811 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 812 * PLOGIs during LOGO storms from a device. 813 */ 814 spin_lock_irq(&ndlp->lock); 815 ndlp->nlp_flag |= NLP_LOGO_ACC; 816 spin_unlock_irq(&ndlp->lock); 817 if (els_cmd == ELS_CMD_PRLO) 818 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 819 else 820 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 821 822 /* This clause allows the initiator to ACC the LOGO back to the 823 * Fabric Domain Controller. It does deliberately skip all other 824 * steps because some fabrics send RDP requests after logging out 825 * from the initiator. 826 */ 827 if (ndlp->nlp_type & NLP_FABRIC && 828 ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK)) 829 return 0; 830 831 /* Notify transport of connectivity loss to trigger cleanup. */ 832 if (phba->nvmet_support && 833 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 834 lpfc_nvmet_invalidate_host(phba, ndlp); 835 836 if (ndlp->nlp_DID == Fabric_DID) { 837 if (vport->port_state <= LPFC_FDISC || 838 vport->fc_flag & FC_PT2PT) 839 goto out; 840 lpfc_linkdown_port(vport); 841 spin_lock_irq(shost->host_lock); 842 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 843 spin_unlock_irq(shost->host_lock); 844 vports = lpfc_create_vport_work_array(phba); 845 if (vports) { 846 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 847 i++) { 848 if ((!(vports[i]->fc_flag & 849 FC_VPORT_LOGO_RCVD)) && 850 (vports[i]->port_state > LPFC_FDISC)) { 851 active_vlink_present = 1; 852 break; 853 } 854 } 855 lpfc_destroy_vport_work_array(phba, vports); 856 } 857 858 /* 859 * Don't re-instantiate if vport is marked for deletion. 860 * If we are here first then vport_delete is going to wait 861 * for discovery to complete. 862 */ 863 if (!(vport->load_flag & FC_UNLOADING) && 864 active_vlink_present) { 865 /* 866 * If there are other active VLinks present, 867 * re-instantiate the Vlink using FDISC. 868 */ 869 mod_timer(&ndlp->nlp_delayfunc, 870 jiffies + msecs_to_jiffies(1000)); 871 spin_lock_irq(&ndlp->lock); 872 ndlp->nlp_flag |= NLP_DELAY_TMO; 873 spin_unlock_irq(&ndlp->lock); 874 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 875 vport->port_state = LPFC_FDISC; 876 } else { 877 spin_lock_irq(shost->host_lock); 878 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 879 spin_unlock_irq(shost->host_lock); 880 lpfc_retry_pport_discovery(phba); 881 } 882 } else { 883 lpfc_printf_vlog(vport, KERN_INFO, 884 LOG_NODE | LOG_ELS | LOG_DISCOVERY, 885 "3203 LOGO recover nport x%06x state x%x " 886 "ntype x%x fc_flag x%x\n", 887 ndlp->nlp_DID, ndlp->nlp_state, 888 ndlp->nlp_type, vport->fc_flag); 889 890 /* Special cases for rports that recover post LOGO. */ 891 if ((!(ndlp->nlp_type == NLP_FABRIC) && 892 (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) || 893 vport->fc_flag & FC_PT2PT)) || 894 (ndlp->nlp_state >= NLP_STE_ADISC_ISSUE || 895 ndlp->nlp_state <= NLP_STE_PRLI_ISSUE)) { 896 mod_timer(&ndlp->nlp_delayfunc, 897 jiffies + msecs_to_jiffies(1000 * 1)); 898 spin_lock_irq(&ndlp->lock); 899 ndlp->nlp_flag |= NLP_DELAY_TMO; 900 spin_unlock_irq(&ndlp->lock); 901 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 902 lpfc_printf_vlog(vport, KERN_INFO, 903 LOG_NODE | LOG_ELS | LOG_DISCOVERY, 904 "3204 Start nlpdelay on DID x%06x " 905 "nflag x%x lastels x%x ref cnt %u", 906 ndlp->nlp_DID, ndlp->nlp_flag, 907 ndlp->nlp_last_elscmd, 908 kref_read(&ndlp->kref)); 909 } 910 } 911 out: 912 /* Unregister from backend, could have been skipped due to ADISC */ 913 lpfc_nlp_unreg_node(vport, ndlp); 914 915 ndlp->nlp_prev_state = ndlp->nlp_state; 916 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 917 918 spin_lock_irq(&ndlp->lock); 919 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 920 spin_unlock_irq(&ndlp->lock); 921 /* The driver has to wait until the ACC completes before it continues 922 * processing the LOGO. The action will resume in 923 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 924 * unreg_login, the driver waits so the ACC does not get aborted. 925 */ 926 return 0; 927 } 928 929 static uint32_t 930 lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 931 struct lpfc_nodelist *ndlp, 932 struct lpfc_iocbq *cmdiocb) 933 { 934 struct ls_rjt stat; 935 uint32_t *payload; 936 uint32_t cmd; 937 938 payload = cmdiocb->cmd_dmabuf->virt; 939 cmd = *payload; 940 if (vport->phba->nvmet_support) { 941 /* Must be a NVME PRLI */ 942 if (cmd == ELS_CMD_PRLI) 943 goto out; 944 } else { 945 /* Initiator mode. */ 946 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 947 goto out; 948 } 949 return 1; 950 out: 951 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC, 952 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 953 "state x%x flags x%x\n", 954 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 955 ndlp->nlp_flag); 956 memset(&stat, 0, sizeof(struct ls_rjt)); 957 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 958 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 959 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 960 ndlp, NULL); 961 return 0; 962 } 963 964 static void 965 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 966 struct lpfc_iocbq *cmdiocb) 967 { 968 struct lpfc_hba *phba = vport->phba; 969 struct lpfc_dmabuf *pcmd; 970 uint32_t *lp; 971 PRLI *npr; 972 struct fc_rport *rport = ndlp->rport; 973 u32 roles; 974 975 pcmd = cmdiocb->cmd_dmabuf; 976 lp = (uint32_t *)pcmd->virt; 977 npr = (PRLI *)((uint8_t *)lp + sizeof(uint32_t)); 978 979 if ((npr->prliType == PRLI_FCP_TYPE) || 980 (npr->prliType == PRLI_NVME_TYPE)) { 981 if (npr->initiatorFunc) { 982 if (npr->prliType == PRLI_FCP_TYPE) 983 ndlp->nlp_type |= NLP_FCP_INITIATOR; 984 if (npr->prliType == PRLI_NVME_TYPE) 985 ndlp->nlp_type |= NLP_NVME_INITIATOR; 986 } 987 if (npr->targetFunc) { 988 if (npr->prliType == PRLI_FCP_TYPE) 989 ndlp->nlp_type |= NLP_FCP_TARGET; 990 if (npr->prliType == PRLI_NVME_TYPE) 991 ndlp->nlp_type |= NLP_NVME_TARGET; 992 if (npr->writeXferRdyDis) 993 ndlp->nlp_flag |= NLP_FIRSTBURST; 994 } 995 if (npr->Retry && ndlp->nlp_type & 996 (NLP_FCP_INITIATOR | NLP_FCP_TARGET)) 997 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 998 999 if (npr->Retry && phba->nsler && 1000 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET)) 1001 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 1002 1003 1004 /* If this driver is in nvme target mode, set the ndlp's fc4 1005 * type to NVME provided the PRLI response claims NVME FC4 1006 * type. Target mode does not issue gft_id so doesn't get 1007 * the fc4 type set until now. 1008 */ 1009 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 1010 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1011 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1012 } 1013 1014 /* Fabric Controllers send FCP PRLI as an initiator but should 1015 * not get recognized as FCP type and registered with transport. 1016 */ 1017 if (npr->prliType == PRLI_FCP_TYPE && 1018 !(ndlp->nlp_type & NLP_FABRIC)) 1019 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1020 } 1021 if (rport) { 1022 /* We need to update the rport role values */ 1023 roles = FC_RPORT_ROLE_UNKNOWN; 1024 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 1025 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 1026 if (ndlp->nlp_type & NLP_FCP_TARGET) 1027 roles |= FC_RPORT_ROLE_FCP_TARGET; 1028 1029 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 1030 "rport rolechg: role:x%x did:x%x flg:x%x", 1031 roles, ndlp->nlp_DID, ndlp->nlp_flag); 1032 1033 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1034 fc_remote_port_rolechg(rport, roles); 1035 } 1036 } 1037 1038 static uint32_t 1039 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 1040 { 1041 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 1042 spin_lock_irq(&ndlp->lock); 1043 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1044 spin_unlock_irq(&ndlp->lock); 1045 return 0; 1046 } 1047 1048 if (!(vport->fc_flag & FC_PT2PT)) { 1049 /* Check config parameter use-adisc or FCP-2 */ 1050 if (vport->cfg_use_adisc && ((vport->fc_flag & FC_RSCN_MODE) || 1051 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 1052 (ndlp->nlp_type & NLP_FCP_TARGET)))) { 1053 spin_lock_irq(&ndlp->lock); 1054 ndlp->nlp_flag |= NLP_NPR_ADISC; 1055 spin_unlock_irq(&ndlp->lock); 1056 return 1; 1057 } 1058 } 1059 1060 spin_lock_irq(&ndlp->lock); 1061 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1062 spin_unlock_irq(&ndlp->lock); 1063 lpfc_unreg_rpi(vport, ndlp); 1064 return 0; 1065 } 1066 1067 /** 1068 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 1069 * @phba : Pointer to lpfc_hba structure. 1070 * @vport: Pointer to lpfc_vport structure. 1071 * @ndlp: Pointer to lpfc_nodelist structure. 1072 * @rpi : rpi to be release. 1073 * 1074 * This function will send a unreg_login mailbox command to the firmware 1075 * to release a rpi. 1076 **/ 1077 static void 1078 lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, 1079 struct lpfc_nodelist *ndlp, uint16_t rpi) 1080 { 1081 LPFC_MBOXQ_t *pmb; 1082 int rc; 1083 1084 /* If there is already an UNREG in progress for this ndlp, 1085 * no need to queue up another one. 1086 */ 1087 if (ndlp->nlp_flag & NLP_UNREG_INP) { 1088 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1089 "1435 release_rpi SKIP UNREG x%x on " 1090 "NPort x%x deferred x%x flg x%x " 1091 "Data: x%px\n", 1092 ndlp->nlp_rpi, ndlp->nlp_DID, 1093 ndlp->nlp_defer_did, 1094 ndlp->nlp_flag, ndlp); 1095 return; 1096 } 1097 1098 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 1099 GFP_KERNEL); 1100 if (!pmb) 1101 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1102 "2796 mailbox memory allocation failed \n"); 1103 else { 1104 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 1105 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1106 pmb->vport = vport; 1107 pmb->ctx_ndlp = lpfc_nlp_get(ndlp); 1108 if (!pmb->ctx_ndlp) { 1109 mempool_free(pmb, phba->mbox_mem_pool); 1110 return; 1111 } 1112 1113 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 1114 (!(vport->fc_flag & FC_OFFLINE_MODE))) 1115 ndlp->nlp_flag |= NLP_UNREG_INP; 1116 1117 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1118 "1437 release_rpi UNREG x%x " 1119 "on NPort x%x flg x%x\n", 1120 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); 1121 1122 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 1123 if (rc == MBX_NOT_FINISHED) { 1124 lpfc_nlp_put(ndlp); 1125 mempool_free(pmb, phba->mbox_mem_pool); 1126 } 1127 } 1128 } 1129 1130 static uint32_t 1131 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1132 void *arg, uint32_t evt) 1133 { 1134 struct lpfc_hba *phba; 1135 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1136 uint16_t rpi; 1137 1138 phba = vport->phba; 1139 /* Release the RPI if reglogin completing */ 1140 if (!(phba->pport->load_flag & FC_UNLOADING) && 1141 (evt == NLP_EVT_CMPL_REG_LOGIN) && 1142 (!pmb->u.mb.mbxStatus)) { 1143 rpi = pmb->u.mb.un.varWords[0]; 1144 lpfc_release_rpi(phba, vport, ndlp, rpi); 1145 } 1146 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1147 "0271 Illegal State Transition: node x%x " 1148 "event x%x, state x%x Data: x%x x%x\n", 1149 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1150 ndlp->nlp_flag); 1151 return ndlp->nlp_state; 1152 } 1153 1154 static uint32_t 1155 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1156 void *arg, uint32_t evt) 1157 { 1158 /* This transition is only legal if we previously 1159 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 1160 * working on the same NPortID, do nothing for this thread 1161 * to stop it. 1162 */ 1163 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 1164 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1165 "0272 Illegal State Transition: node x%x " 1166 "event x%x, state x%x Data: x%x x%x\n", 1167 ndlp->nlp_DID, evt, ndlp->nlp_state, 1168 ndlp->nlp_rpi, ndlp->nlp_flag); 1169 } 1170 return ndlp->nlp_state; 1171 } 1172 1173 /* Start of Discovery State Machine routines */ 1174 1175 static uint32_t 1176 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1177 void *arg, uint32_t evt) 1178 { 1179 struct lpfc_iocbq *cmdiocb; 1180 1181 cmdiocb = (struct lpfc_iocbq *) arg; 1182 1183 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1184 return ndlp->nlp_state; 1185 } 1186 return NLP_STE_FREED_NODE; 1187 } 1188 1189 static uint32_t 1190 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1191 void *arg, uint32_t evt) 1192 { 1193 lpfc_issue_els_logo(vport, ndlp, 0); 1194 return ndlp->nlp_state; 1195 } 1196 1197 static uint32_t 1198 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1199 void *arg, uint32_t evt) 1200 { 1201 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1202 1203 spin_lock_irq(&ndlp->lock); 1204 ndlp->nlp_flag |= NLP_LOGO_ACC; 1205 spin_unlock_irq(&ndlp->lock); 1206 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1207 1208 return ndlp->nlp_state; 1209 } 1210 1211 static uint32_t 1212 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1213 void *arg, uint32_t evt) 1214 { 1215 return NLP_STE_FREED_NODE; 1216 } 1217 1218 static uint32_t 1219 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1220 void *arg, uint32_t evt) 1221 { 1222 return NLP_STE_FREED_NODE; 1223 } 1224 1225 static uint32_t 1226 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 1227 struct lpfc_nodelist *ndlp, 1228 void *arg, uint32_t evt) 1229 { 1230 return ndlp->nlp_state; 1231 } 1232 1233 static uint32_t 1234 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1235 void *arg, uint32_t evt) 1236 { 1237 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1238 struct lpfc_hba *phba = vport->phba; 1239 struct lpfc_iocbq *cmdiocb = arg; 1240 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 1241 uint32_t *lp = (uint32_t *) pcmd->virt; 1242 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1243 struct ls_rjt stat; 1244 int port_cmp; 1245 1246 memset(&stat, 0, sizeof (struct ls_rjt)); 1247 1248 /* For a PLOGI, we only accept if our portname is less 1249 * than the remote portname. 1250 */ 1251 phba->fc_stat.elsLogiCol++; 1252 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1253 sizeof(struct lpfc_name)); 1254 1255 if (port_cmp >= 0) { 1256 /* Reject this request because the remote node will accept 1257 ours */ 1258 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1259 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1260 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1261 NULL); 1262 } else { 1263 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1264 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 1265 (vport->num_disc_nodes)) { 1266 spin_lock_irq(&ndlp->lock); 1267 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1268 spin_unlock_irq(&ndlp->lock); 1269 /* Check if there are more PLOGIs to be sent */ 1270 lpfc_more_plogi(vport); 1271 if (vport->num_disc_nodes == 0) { 1272 spin_lock_irq(shost->host_lock); 1273 vport->fc_flag &= ~FC_NDISC_ACTIVE; 1274 spin_unlock_irq(shost->host_lock); 1275 lpfc_can_disctmo(vport); 1276 lpfc_end_rscn(vport); 1277 } 1278 } 1279 } /* If our portname was less */ 1280 1281 return ndlp->nlp_state; 1282 } 1283 1284 static uint32_t 1285 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1286 void *arg, uint32_t evt) 1287 { 1288 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1289 struct ls_rjt stat; 1290 1291 memset(&stat, 0, sizeof (struct ls_rjt)); 1292 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1293 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1294 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1295 return ndlp->nlp_state; 1296 } 1297 1298 static uint32_t 1299 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1300 void *arg, uint32_t evt) 1301 { 1302 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1303 1304 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1305 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1306 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1307 /* software abort outstanding PLOGI */ 1308 lpfc_els_abort(vport->phba, ndlp); 1309 1310 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1311 return ndlp->nlp_state; 1312 } 1313 1314 static uint32_t 1315 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1316 void *arg, uint32_t evt) 1317 { 1318 struct lpfc_hba *phba = vport->phba; 1319 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1320 1321 /* software abort outstanding PLOGI */ 1322 lpfc_els_abort(phba, ndlp); 1323 1324 if (evt == NLP_EVT_RCV_LOGO) { 1325 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1326 } else { 1327 lpfc_issue_els_logo(vport, ndlp, 0); 1328 } 1329 1330 /* Put ndlp in npr state set plogi timer for 1 sec */ 1331 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1332 spin_lock_irq(&ndlp->lock); 1333 ndlp->nlp_flag |= NLP_DELAY_TMO; 1334 spin_unlock_irq(&ndlp->lock); 1335 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1336 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1337 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1338 1339 return ndlp->nlp_state; 1340 } 1341 1342 static uint32_t 1343 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1344 struct lpfc_nodelist *ndlp, 1345 void *arg, 1346 uint32_t evt) 1347 { 1348 struct lpfc_hba *phba = vport->phba; 1349 struct lpfc_iocbq *cmdiocb, *rspiocb; 1350 struct lpfc_dmabuf *pcmd, *prsp; 1351 uint32_t *lp; 1352 uint32_t vid, flag; 1353 struct serv_parm *sp; 1354 uint32_t ed_tov; 1355 LPFC_MBOXQ_t *mbox; 1356 int rc; 1357 u32 ulp_status; 1358 u32 did; 1359 1360 cmdiocb = (struct lpfc_iocbq *) arg; 1361 rspiocb = cmdiocb->rsp_iocb; 1362 1363 ulp_status = get_job_ulpstatus(phba, rspiocb); 1364 1365 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1366 /* Recovery from PLOGI collision logic */ 1367 return ndlp->nlp_state; 1368 } 1369 1370 if (ulp_status) 1371 goto out; 1372 1373 pcmd = cmdiocb->cmd_dmabuf; 1374 1375 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1376 if (!prsp) 1377 goto out; 1378 1379 lp = (uint32_t *) prsp->virt; 1380 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1381 1382 /* Some switches have FDMI servers returning 0 for WWN */ 1383 if ((ndlp->nlp_DID != FDMI_DID) && 1384 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1385 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1386 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1387 "0142 PLOGI RSP: Invalid WWN.\n"); 1388 goto out; 1389 } 1390 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1391 goto out; 1392 /* PLOGI chkparm OK */ 1393 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1394 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1395 ndlp->nlp_DID, ndlp->nlp_state, 1396 ndlp->nlp_flag, ndlp->nlp_rpi); 1397 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1398 ndlp->nlp_fcp_info |= CLASS2; 1399 else 1400 ndlp->nlp_fcp_info |= CLASS3; 1401 1402 ndlp->nlp_class_sup = 0; 1403 if (sp->cls1.classValid) 1404 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1405 if (sp->cls2.classValid) 1406 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1407 if (sp->cls3.classValid) 1408 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1409 if (sp->cls4.classValid) 1410 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1411 ndlp->nlp_maxframe = 1412 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1413 1414 if ((vport->fc_flag & FC_PT2PT) && 1415 (vport->fc_flag & FC_PT2PT_PLOGI)) { 1416 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1417 if (sp->cmn.edtovResolution) { 1418 /* E_D_TOV ticks are in nanoseconds */ 1419 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1420 } 1421 1422 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 1423 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1424 sp->cmn.valid_vendor_ver_level) { 1425 vid = be32_to_cpu(sp->un.vv.vid); 1426 flag = be32_to_cpu(sp->un.vv.flags); 1427 if ((vid == LPFC_VV_EMLX_ID) && 1428 (flag & LPFC_VV_SUPPRESS_RSP)) 1429 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 1430 } 1431 1432 /* 1433 * Use the larger EDTOV 1434 * RATOV = 2 * EDTOV for pt-to-pt 1435 */ 1436 if (ed_tov > phba->fc_edtov) 1437 phba->fc_edtov = ed_tov; 1438 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1439 1440 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1441 1442 /* Issue config_link / reg_vfi to account for updated TOV's */ 1443 if (phba->sli_rev == LPFC_SLI_REV4) { 1444 lpfc_issue_reg_vfi(vport); 1445 } else { 1446 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1447 if (!mbox) { 1448 lpfc_printf_vlog(vport, KERN_ERR, 1449 LOG_TRACE_EVENT, 1450 "0133 PLOGI: no memory " 1451 "for config_link " 1452 "Data: x%x x%x x%x x%x\n", 1453 ndlp->nlp_DID, ndlp->nlp_state, 1454 ndlp->nlp_flag, ndlp->nlp_rpi); 1455 goto out; 1456 } 1457 1458 lpfc_config_link(phba, mbox); 1459 1460 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1461 mbox->vport = vport; 1462 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1463 if (rc == MBX_NOT_FINISHED) { 1464 mempool_free(mbox, phba->mbox_mem_pool); 1465 goto out; 1466 } 1467 } 1468 } 1469 1470 lpfc_unreg_rpi(vport, ndlp); 1471 1472 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1473 if (!mbox) { 1474 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1475 "0018 PLOGI: no memory for reg_login " 1476 "Data: x%x x%x x%x x%x\n", 1477 ndlp->nlp_DID, ndlp->nlp_state, 1478 ndlp->nlp_flag, ndlp->nlp_rpi); 1479 goto out; 1480 } 1481 1482 did = get_job_els_rsp64_did(phba, cmdiocb); 1483 1484 if (lpfc_reg_rpi(phba, vport->vpi, did, 1485 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1486 switch (ndlp->nlp_DID) { 1487 case NameServer_DID: 1488 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1489 /* Fabric Controller Node needs these parameters. */ 1490 memcpy(&ndlp->fc_sparam, sp, sizeof(struct serv_parm)); 1491 break; 1492 case FDMI_DID: 1493 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1494 break; 1495 default: 1496 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1497 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1498 } 1499 1500 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1501 if (!mbox->ctx_ndlp) 1502 goto out; 1503 1504 mbox->vport = vport; 1505 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1506 != MBX_NOT_FINISHED) { 1507 lpfc_nlp_set_state(vport, ndlp, 1508 NLP_STE_REG_LOGIN_ISSUE); 1509 return ndlp->nlp_state; 1510 } 1511 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1512 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1513 /* decrement node reference count to the failed mbox 1514 * command 1515 */ 1516 lpfc_nlp_put(ndlp); 1517 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 1518 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1519 "0134 PLOGI: cannot issue reg_login " 1520 "Data: x%x x%x x%x x%x\n", 1521 ndlp->nlp_DID, ndlp->nlp_state, 1522 ndlp->nlp_flag, ndlp->nlp_rpi); 1523 } else { 1524 mempool_free(mbox, phba->mbox_mem_pool); 1525 1526 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1527 "0135 PLOGI: cannot format reg_login " 1528 "Data: x%x x%x x%x x%x\n", 1529 ndlp->nlp_DID, ndlp->nlp_state, 1530 ndlp->nlp_flag, ndlp->nlp_rpi); 1531 } 1532 1533 1534 out: 1535 if (ndlp->nlp_DID == NameServer_DID) { 1536 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1537 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1538 "0261 Cannot Register NameServer login\n"); 1539 } 1540 1541 /* 1542 ** In case the node reference counter does not go to zero, ensure that 1543 ** the stale state for the node is not processed. 1544 */ 1545 1546 ndlp->nlp_prev_state = ndlp->nlp_state; 1547 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1548 return NLP_STE_FREED_NODE; 1549 } 1550 1551 static uint32_t 1552 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1553 void *arg, uint32_t evt) 1554 { 1555 return ndlp->nlp_state; 1556 } 1557 1558 static uint32_t 1559 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1560 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1561 { 1562 struct lpfc_hba *phba; 1563 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1564 MAILBOX_t *mb = &pmb->u.mb; 1565 uint16_t rpi; 1566 1567 phba = vport->phba; 1568 /* Release the RPI */ 1569 if (!(phba->pport->load_flag & FC_UNLOADING) && 1570 !mb->mbxStatus) { 1571 rpi = pmb->u.mb.un.varWords[0]; 1572 lpfc_release_rpi(phba, vport, ndlp, rpi); 1573 } 1574 return ndlp->nlp_state; 1575 } 1576 1577 static uint32_t 1578 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1579 void *arg, uint32_t evt) 1580 { 1581 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1582 spin_lock_irq(&ndlp->lock); 1583 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1584 spin_unlock_irq(&ndlp->lock); 1585 return ndlp->nlp_state; 1586 } else { 1587 /* software abort outstanding PLOGI */ 1588 lpfc_els_abort(vport->phba, ndlp); 1589 1590 lpfc_drop_node(vport, ndlp); 1591 return NLP_STE_FREED_NODE; 1592 } 1593 } 1594 1595 static uint32_t 1596 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1597 struct lpfc_nodelist *ndlp, 1598 void *arg, 1599 uint32_t evt) 1600 { 1601 struct lpfc_hba *phba = vport->phba; 1602 1603 /* Don't do anything that will mess up processing of the 1604 * previous RSCN. 1605 */ 1606 if (vport->fc_flag & FC_RSCN_DEFERRED) 1607 return ndlp->nlp_state; 1608 1609 /* software abort outstanding PLOGI */ 1610 lpfc_els_abort(phba, ndlp); 1611 1612 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1613 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1614 spin_lock_irq(&ndlp->lock); 1615 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1616 spin_unlock_irq(&ndlp->lock); 1617 1618 return ndlp->nlp_state; 1619 } 1620 1621 static uint32_t 1622 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1623 void *arg, uint32_t evt) 1624 { 1625 struct lpfc_hba *phba = vport->phba; 1626 struct lpfc_iocbq *cmdiocb; 1627 1628 /* software abort outstanding ADISC */ 1629 lpfc_els_abort(phba, ndlp); 1630 1631 cmdiocb = (struct lpfc_iocbq *) arg; 1632 1633 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1634 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1635 spin_lock_irq(&ndlp->lock); 1636 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1637 spin_unlock_irq(&ndlp->lock); 1638 if (vport->num_disc_nodes) 1639 lpfc_more_adisc(vport); 1640 } 1641 return ndlp->nlp_state; 1642 } 1643 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1644 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1645 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1646 1647 return ndlp->nlp_state; 1648 } 1649 1650 static uint32_t 1651 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1652 void *arg, uint32_t evt) 1653 { 1654 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1655 1656 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1657 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1658 return ndlp->nlp_state; 1659 } 1660 1661 static uint32_t 1662 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1663 void *arg, uint32_t evt) 1664 { 1665 struct lpfc_hba *phba = vport->phba; 1666 struct lpfc_iocbq *cmdiocb; 1667 1668 cmdiocb = (struct lpfc_iocbq *) arg; 1669 1670 /* software abort outstanding ADISC */ 1671 lpfc_els_abort(phba, ndlp); 1672 1673 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1674 return ndlp->nlp_state; 1675 } 1676 1677 static uint32_t 1678 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1679 struct lpfc_nodelist *ndlp, 1680 void *arg, uint32_t evt) 1681 { 1682 struct lpfc_iocbq *cmdiocb; 1683 1684 cmdiocb = (struct lpfc_iocbq *) arg; 1685 1686 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1687 return ndlp->nlp_state; 1688 } 1689 1690 static uint32_t 1691 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1692 void *arg, uint32_t evt) 1693 { 1694 struct lpfc_iocbq *cmdiocb; 1695 1696 cmdiocb = (struct lpfc_iocbq *) arg; 1697 1698 /* Treat like rcv logo */ 1699 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1700 return ndlp->nlp_state; 1701 } 1702 1703 static uint32_t 1704 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1705 struct lpfc_nodelist *ndlp, 1706 void *arg, uint32_t evt) 1707 { 1708 struct lpfc_hba *phba = vport->phba; 1709 struct lpfc_iocbq *cmdiocb, *rspiocb; 1710 ADISC *ap; 1711 int rc; 1712 u32 ulp_status; 1713 1714 cmdiocb = (struct lpfc_iocbq *) arg; 1715 rspiocb = cmdiocb->rsp_iocb; 1716 1717 ulp_status = get_job_ulpstatus(phba, rspiocb); 1718 1719 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1720 1721 if ((ulp_status) || 1722 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1723 /* 1 sec timeout */ 1724 mod_timer(&ndlp->nlp_delayfunc, 1725 jiffies + msecs_to_jiffies(1000)); 1726 spin_lock_irq(&ndlp->lock); 1727 ndlp->nlp_flag |= NLP_DELAY_TMO; 1728 spin_unlock_irq(&ndlp->lock); 1729 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1730 1731 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1732 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1733 lpfc_unreg_rpi(vport, ndlp); 1734 return ndlp->nlp_state; 1735 } 1736 1737 if (phba->sli_rev == LPFC_SLI_REV4) { 1738 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1739 if (rc) { 1740 /* Stay in state and retry. */ 1741 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1742 return ndlp->nlp_state; 1743 } 1744 } 1745 1746 if (ndlp->nlp_type & NLP_FCP_TARGET) 1747 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1748 1749 if (ndlp->nlp_type & NLP_NVME_TARGET) 1750 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1751 1752 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 1753 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1754 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1755 } else { 1756 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1757 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1758 } 1759 1760 return ndlp->nlp_state; 1761 } 1762 1763 static uint32_t 1764 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1765 void *arg, uint32_t evt) 1766 { 1767 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1768 spin_lock_irq(&ndlp->lock); 1769 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1770 spin_unlock_irq(&ndlp->lock); 1771 return ndlp->nlp_state; 1772 } else { 1773 /* software abort outstanding ADISC */ 1774 lpfc_els_abort(vport->phba, ndlp); 1775 1776 lpfc_drop_node(vport, ndlp); 1777 return NLP_STE_FREED_NODE; 1778 } 1779 } 1780 1781 static uint32_t 1782 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1783 struct lpfc_nodelist *ndlp, 1784 void *arg, 1785 uint32_t evt) 1786 { 1787 struct lpfc_hba *phba = vport->phba; 1788 1789 /* Don't do anything that will mess up processing of the 1790 * previous RSCN. 1791 */ 1792 if (vport->fc_flag & FC_RSCN_DEFERRED) 1793 return ndlp->nlp_state; 1794 1795 /* software abort outstanding ADISC */ 1796 lpfc_els_abort(phba, ndlp); 1797 1798 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1799 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1800 spin_lock_irq(&ndlp->lock); 1801 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1802 spin_unlock_irq(&ndlp->lock); 1803 lpfc_disc_set_adisc(vport, ndlp); 1804 return ndlp->nlp_state; 1805 } 1806 1807 static uint32_t 1808 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1809 struct lpfc_nodelist *ndlp, 1810 void *arg, 1811 uint32_t evt) 1812 { 1813 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1814 1815 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1816 return ndlp->nlp_state; 1817 } 1818 1819 static uint32_t 1820 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1821 struct lpfc_nodelist *ndlp, 1822 void *arg, 1823 uint32_t evt) 1824 { 1825 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1826 struct ls_rjt stat; 1827 1828 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1829 return ndlp->nlp_state; 1830 } 1831 if (vport->phba->nvmet_support) { 1832 /* NVME Target mode. Handle and respond to the PRLI and 1833 * transition to UNMAPPED provided the RPI has completed 1834 * registration. 1835 */ 1836 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 1837 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1838 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1839 } else { 1840 /* RPI registration has not completed. Reject the PRLI 1841 * to prevent an illegal state transition when the 1842 * rpi registration does complete. 1843 */ 1844 memset(&stat, 0, sizeof(struct ls_rjt)); 1845 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1846 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1847 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1848 ndlp, NULL); 1849 return ndlp->nlp_state; 1850 } 1851 } else { 1852 /* Initiator mode. */ 1853 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1854 } 1855 return ndlp->nlp_state; 1856 } 1857 1858 static uint32_t 1859 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1860 struct lpfc_nodelist *ndlp, 1861 void *arg, 1862 uint32_t evt) 1863 { 1864 struct lpfc_hba *phba = vport->phba; 1865 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1866 LPFC_MBOXQ_t *mb; 1867 LPFC_MBOXQ_t *nextmb; 1868 1869 cmdiocb = (struct lpfc_iocbq *) arg; 1870 1871 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1872 if ((mb = phba->sli.mbox_active)) { 1873 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1874 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1875 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1876 lpfc_nlp_put(ndlp); 1877 mb->ctx_ndlp = NULL; 1878 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1879 } 1880 } 1881 1882 spin_lock_irq(&phba->hbalock); 1883 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1884 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1885 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1886 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1887 lpfc_nlp_put(ndlp); 1888 list_del(&mb->list); 1889 phba->sli.mboxq_cnt--; 1890 lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_LOCKED); 1891 } 1892 } 1893 spin_unlock_irq(&phba->hbalock); 1894 1895 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1896 return ndlp->nlp_state; 1897 } 1898 1899 static uint32_t 1900 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1901 struct lpfc_nodelist *ndlp, 1902 void *arg, 1903 uint32_t evt) 1904 { 1905 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1906 1907 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1908 return ndlp->nlp_state; 1909 } 1910 1911 static uint32_t 1912 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1913 struct lpfc_nodelist *ndlp, 1914 void *arg, 1915 uint32_t evt) 1916 { 1917 struct lpfc_iocbq *cmdiocb; 1918 1919 cmdiocb = (struct lpfc_iocbq *) arg; 1920 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1921 return ndlp->nlp_state; 1922 } 1923 1924 static uint32_t 1925 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1926 struct lpfc_nodelist *ndlp, 1927 void *arg, 1928 uint32_t evt) 1929 { 1930 struct lpfc_hba *phba = vport->phba; 1931 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1932 MAILBOX_t *mb = &pmb->u.mb; 1933 uint32_t did = mb->un.varWords[1]; 1934 1935 if (mb->mbxStatus) { 1936 /* RegLogin failed */ 1937 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1938 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1939 "x%x\n", 1940 did, mb->mbxStatus, vport->port_state, 1941 mb->un.varRegLogin.vpi, 1942 mb->un.varRegLogin.rpi); 1943 /* 1944 * If RegLogin failed due to lack of HBA resources do not 1945 * retry discovery. 1946 */ 1947 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1948 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1949 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1950 return ndlp->nlp_state; 1951 } 1952 1953 /* Put ndlp in npr state set plogi timer for 1 sec */ 1954 mod_timer(&ndlp->nlp_delayfunc, 1955 jiffies + msecs_to_jiffies(1000 * 1)); 1956 spin_lock_irq(&ndlp->lock); 1957 ndlp->nlp_flag |= NLP_DELAY_TMO; 1958 spin_unlock_irq(&ndlp->lock); 1959 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1960 1961 lpfc_issue_els_logo(vport, ndlp, 0); 1962 return ndlp->nlp_state; 1963 } 1964 1965 /* SLI4 ports have preallocated logical rpis. */ 1966 if (phba->sli_rev < LPFC_SLI_REV4) 1967 ndlp->nlp_rpi = mb->un.varWords[0]; 1968 1969 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1970 1971 /* Only if we are not a fabric nport do we issue PRLI */ 1972 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1973 "3066 RegLogin Complete on x%x x%x x%x\n", 1974 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 1975 if (!(ndlp->nlp_type & NLP_FABRIC) && 1976 (phba->nvmet_support == 0)) { 1977 /* The driver supports FCP and NVME concurrently. If the 1978 * ndlp's nlp_fc4_type is still zero, the driver doesn't 1979 * know what PRLI to send yet. Figure that out now and 1980 * call PRLI depending on the outcome. 1981 */ 1982 if (vport->fc_flag & FC_PT2PT) { 1983 /* If we are pt2pt, there is no Fabric to determine 1984 * the FC4 type of the remote nport. So if NVME 1985 * is configured try it. 1986 */ 1987 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1988 if ((!(vport->fc_flag & FC_PT2PT_NO_NVME)) && 1989 (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH || 1990 vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1991 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1992 /* We need to update the localport also */ 1993 lpfc_nvme_update_localport(vport); 1994 } 1995 1996 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 1997 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1998 1999 } else if (ndlp->nlp_fc4_type == 0) { 2000 /* If we are only configured for FCP, the driver 2001 * should just issue PRLI for FCP. Otherwise issue 2002 * GFT_ID to determine if remote port supports NVME. 2003 */ 2004 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 2005 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0, 2006 ndlp->nlp_DID); 2007 return ndlp->nlp_state; 2008 } 2009 ndlp->nlp_fc4_type = NLP_FC4_FCP; 2010 } 2011 2012 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2013 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 2014 if (lpfc_issue_els_prli(vport, ndlp, 0)) { 2015 lpfc_issue_els_logo(vport, ndlp, 0); 2016 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2017 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2018 } 2019 } else { 2020 if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support) 2021 phba->targetport->port_id = vport->fc_myDID; 2022 2023 /* Only Fabric ports should transition. NVME target 2024 * must complete PRLI. 2025 */ 2026 if (ndlp->nlp_type & NLP_FABRIC) { 2027 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2028 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2029 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2030 } 2031 } 2032 return ndlp->nlp_state; 2033 } 2034 2035 static uint32_t 2036 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 2037 struct lpfc_nodelist *ndlp, 2038 void *arg, 2039 uint32_t evt) 2040 { 2041 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2042 spin_lock_irq(&ndlp->lock); 2043 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2044 spin_unlock_irq(&ndlp->lock); 2045 return ndlp->nlp_state; 2046 } else { 2047 lpfc_drop_node(vport, ndlp); 2048 return NLP_STE_FREED_NODE; 2049 } 2050 } 2051 2052 static uint32_t 2053 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 2054 struct lpfc_nodelist *ndlp, 2055 void *arg, 2056 uint32_t evt) 2057 { 2058 /* Don't do anything that will mess up processing of the 2059 * previous RSCN. 2060 */ 2061 if (vport->fc_flag & FC_RSCN_DEFERRED) 2062 return ndlp->nlp_state; 2063 2064 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2065 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2066 spin_lock_irq(&ndlp->lock); 2067 2068 /* If we are a target we won't immediately transition into PRLI, 2069 * so if REG_LOGIN already completed we don't need to ignore it. 2070 */ 2071 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) || 2072 !vport->phba->nvmet_support) 2073 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 2074 2075 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2076 spin_unlock_irq(&ndlp->lock); 2077 lpfc_disc_set_adisc(vport, ndlp); 2078 return ndlp->nlp_state; 2079 } 2080 2081 static uint32_t 2082 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2083 void *arg, uint32_t evt) 2084 { 2085 struct lpfc_iocbq *cmdiocb; 2086 2087 cmdiocb = (struct lpfc_iocbq *) arg; 2088 2089 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2090 return ndlp->nlp_state; 2091 } 2092 2093 static uint32_t 2094 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2095 void *arg, uint32_t evt) 2096 { 2097 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2098 2099 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2100 return ndlp->nlp_state; 2101 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2102 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2103 return ndlp->nlp_state; 2104 } 2105 2106 static uint32_t 2107 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2108 void *arg, uint32_t evt) 2109 { 2110 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2111 2112 /* Software abort outstanding PRLI before sending acc */ 2113 lpfc_els_abort(vport->phba, ndlp); 2114 2115 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2116 return ndlp->nlp_state; 2117 } 2118 2119 static uint32_t 2120 lpfc_rcv_padisc_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_rcv_padisc(vport, ndlp, cmdiocb); 2126 return ndlp->nlp_state; 2127 } 2128 2129 /* This routine is envoked when we rcv a PRLO request from a nport 2130 * we are logged into. We should send back a PRLO rsp setting the 2131 * appropriate bits. 2132 * NEXT STATE = PRLI_ISSUE 2133 */ 2134 static uint32_t 2135 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2136 void *arg, uint32_t evt) 2137 { 2138 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2139 2140 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2141 return ndlp->nlp_state; 2142 } 2143 2144 static uint32_t 2145 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2146 void *arg, uint32_t evt) 2147 { 2148 struct lpfc_iocbq *cmdiocb, *rspiocb; 2149 struct lpfc_hba *phba = vport->phba; 2150 PRLI *npr; 2151 struct lpfc_nvme_prli *nvpr; 2152 void *temp_ptr; 2153 u32 ulp_status; 2154 bool acc_imode_sps = false; 2155 2156 cmdiocb = (struct lpfc_iocbq *) arg; 2157 rspiocb = cmdiocb->rsp_iocb; 2158 2159 ulp_status = get_job_ulpstatus(phba, rspiocb); 2160 2161 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 2162 * format is different so NULL the two PRLI types so that the 2163 * driver correctly gets the correct context. 2164 */ 2165 npr = NULL; 2166 nvpr = NULL; 2167 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 2168 if (cmdiocb->cmd_flag & LPFC_PRLI_FCP_REQ) 2169 npr = (PRLI *) temp_ptr; 2170 else if (cmdiocb->cmd_flag & LPFC_PRLI_NVME_REQ) 2171 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 2172 2173 if (ulp_status) { 2174 if ((vport->port_type == LPFC_NPIV_PORT) && 2175 vport->cfg_restrict_login) { 2176 goto out; 2177 } 2178 2179 /* Adjust the nlp_type accordingly if the PRLI failed */ 2180 if (npr) 2181 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2182 if (nvpr) 2183 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 2184 2185 /* We can't set the DSM state till BOTH PRLIs complete */ 2186 goto out_err; 2187 } 2188 2189 if (npr && npr->prliType == PRLI_FCP_TYPE) { 2190 lpfc_printf_vlog(vport, KERN_INFO, 2191 LOG_ELS | LOG_NODE | LOG_DISCOVERY, 2192 "6028 FCP NPR PRLI Cmpl Init %d Target %d " 2193 "EIP %d AccCode x%x\n", 2194 npr->initiatorFunc, npr->targetFunc, 2195 npr->estabImagePair, npr->acceptRspCode); 2196 2197 if (npr->acceptRspCode == PRLI_INV_SRV_PARM) { 2198 /* Strict initiators don't establish an image pair. */ 2199 if (npr->initiatorFunc && !npr->targetFunc && 2200 !npr->estabImagePair) 2201 acc_imode_sps = true; 2202 } 2203 2204 if (npr->acceptRspCode == PRLI_REQ_EXECUTED || acc_imode_sps) { 2205 if (npr->initiatorFunc) 2206 ndlp->nlp_type |= NLP_FCP_INITIATOR; 2207 if (npr->targetFunc) { 2208 ndlp->nlp_type |= NLP_FCP_TARGET; 2209 if (npr->writeXferRdyDis) 2210 ndlp->nlp_flag |= NLP_FIRSTBURST; 2211 } 2212 if (npr->Retry) 2213 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 2214 } 2215 } else if (nvpr && 2216 (bf_get_be32(prli_acc_rsp_code, nvpr) == 2217 PRLI_REQ_EXECUTED) && 2218 (bf_get_be32(prli_type_code, nvpr) == 2219 PRLI_NVME_TYPE)) { 2220 2221 /* Complete setting up the remote ndlp personality. */ 2222 if (bf_get_be32(prli_init, nvpr)) 2223 ndlp->nlp_type |= NLP_NVME_INITIATOR; 2224 2225 if (phba->nsler && bf_get_be32(prli_nsler, nvpr) && 2226 bf_get_be32(prli_conf, nvpr)) 2227 2228 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 2229 else 2230 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 2231 2232 /* Target driver cannot solicit NVME FB. */ 2233 if (bf_get_be32(prli_tgt, nvpr)) { 2234 /* Complete the nvme target roles. The transport 2235 * needs to know if the rport is capable of 2236 * discovery in addition to its role. 2237 */ 2238 ndlp->nlp_type |= NLP_NVME_TARGET; 2239 if (bf_get_be32(prli_disc, nvpr)) 2240 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 2241 2242 /* 2243 * If prli_fba is set, the Target supports FirstBurst. 2244 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 2245 * otherwise it defines the actual size supported by 2246 * the NVME Target. 2247 */ 2248 if ((bf_get_be32(prli_fba, nvpr) == 1) && 2249 (phba->cfg_nvme_enable_fb) && 2250 (!phba->nvmet_support)) { 2251 /* Both sides support FB. The target's first 2252 * burst size is a 512 byte encoded value. 2253 */ 2254 ndlp->nlp_flag |= NLP_FIRSTBURST; 2255 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2256 nvpr); 2257 2258 /* Expressed in units of 512 bytes */ 2259 if (ndlp->nvme_fb_size) 2260 ndlp->nvme_fb_size <<= 2261 LPFC_NVME_FB_SHIFT; 2262 else 2263 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2264 } 2265 } 2266 2267 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2268 "6029 NVME PRLI Cmpl w1 x%08x " 2269 "w4 x%08x w5 x%08x flag x%x, " 2270 "fcp_info x%x nlp_type x%x\n", 2271 be32_to_cpu(nvpr->word1), 2272 be32_to_cpu(nvpr->word4), 2273 be32_to_cpu(nvpr->word5), 2274 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2275 ndlp->nlp_type); 2276 } 2277 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2278 (vport->port_type == LPFC_NPIV_PORT) && 2279 vport->cfg_restrict_login) { 2280 out: 2281 spin_lock_irq(&ndlp->lock); 2282 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 2283 spin_unlock_irq(&ndlp->lock); 2284 lpfc_issue_els_logo(vport, ndlp, 0); 2285 2286 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2287 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2288 return ndlp->nlp_state; 2289 } 2290 2291 out_err: 2292 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2293 * are complete. 2294 */ 2295 if (ndlp->fc4_prli_sent == 0) { 2296 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2297 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2298 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2299 else if (ndlp->nlp_type & 2300 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2301 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2302 } else 2303 lpfc_printf_vlog(vport, 2304 KERN_INFO, LOG_ELS, 2305 "3067 PRLI's still outstanding " 2306 "on x%06x - count %d, Pend Node Mode " 2307 "transition...\n", 2308 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2309 2310 return ndlp->nlp_state; 2311 } 2312 2313 /*! lpfc_device_rm_prli_issue 2314 * 2315 * \pre 2316 * \post 2317 * \param phba 2318 * \param ndlp 2319 * \param arg 2320 * \param evt 2321 * \return uint32_t 2322 * 2323 * \b Description: 2324 * This routine is envoked when we a request to remove a nport we are in the 2325 * process of PRLIing. We should software abort outstanding prli, unreg 2326 * login, send a logout. We will change node state to UNUSED_NODE, put it 2327 * on plogi list so it can be freed when LOGO completes. 2328 * 2329 */ 2330 2331 static uint32_t 2332 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2333 void *arg, uint32_t evt) 2334 { 2335 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2336 spin_lock_irq(&ndlp->lock); 2337 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2338 spin_unlock_irq(&ndlp->lock); 2339 return ndlp->nlp_state; 2340 } else { 2341 /* software abort outstanding PLOGI */ 2342 lpfc_els_abort(vport->phba, ndlp); 2343 2344 lpfc_drop_node(vport, ndlp); 2345 return NLP_STE_FREED_NODE; 2346 } 2347 } 2348 2349 2350 /*! lpfc_device_recov_prli_issue 2351 * 2352 * \pre 2353 * \post 2354 * \param phba 2355 * \param ndlp 2356 * \param arg 2357 * \param evt 2358 * \return uint32_t 2359 * 2360 * \b Description: 2361 * The routine is envoked when the state of a device is unknown, like 2362 * during a link down. We should remove the nodelist entry from the 2363 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2364 * outstanding PRLI command, then free the node entry. 2365 */ 2366 static uint32_t 2367 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2368 struct lpfc_nodelist *ndlp, 2369 void *arg, 2370 uint32_t evt) 2371 { 2372 struct lpfc_hba *phba = vport->phba; 2373 2374 /* Don't do anything that will mess up processing of the 2375 * previous RSCN. 2376 */ 2377 if (vport->fc_flag & FC_RSCN_DEFERRED) 2378 return ndlp->nlp_state; 2379 2380 /* software abort outstanding PRLI */ 2381 lpfc_els_abort(phba, ndlp); 2382 2383 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2384 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2385 spin_lock_irq(&ndlp->lock); 2386 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2387 spin_unlock_irq(&ndlp->lock); 2388 lpfc_disc_set_adisc(vport, ndlp); 2389 return ndlp->nlp_state; 2390 } 2391 2392 static uint32_t 2393 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2394 void *arg, uint32_t evt) 2395 { 2396 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2397 struct ls_rjt stat; 2398 2399 memset(&stat, 0, sizeof(struct ls_rjt)); 2400 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2401 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2402 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2403 return ndlp->nlp_state; 2404 } 2405 2406 static uint32_t 2407 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2408 void *arg, uint32_t evt) 2409 { 2410 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2411 struct ls_rjt stat; 2412 2413 memset(&stat, 0, sizeof(struct ls_rjt)); 2414 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2415 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2416 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2417 return ndlp->nlp_state; 2418 } 2419 2420 static uint32_t 2421 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2422 void *arg, uint32_t evt) 2423 { 2424 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2425 2426 spin_lock_irq(&ndlp->lock); 2427 ndlp->nlp_flag |= NLP_LOGO_ACC; 2428 spin_unlock_irq(&ndlp->lock); 2429 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2430 return ndlp->nlp_state; 2431 } 2432 2433 static uint32_t 2434 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2435 void *arg, uint32_t evt) 2436 { 2437 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2438 struct ls_rjt stat; 2439 2440 memset(&stat, 0, sizeof(struct ls_rjt)); 2441 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2442 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2443 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2444 return ndlp->nlp_state; 2445 } 2446 2447 static uint32_t 2448 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2449 void *arg, uint32_t evt) 2450 { 2451 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2452 struct ls_rjt stat; 2453 2454 memset(&stat, 0, sizeof(struct ls_rjt)); 2455 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2456 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2457 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2458 return ndlp->nlp_state; 2459 } 2460 2461 static uint32_t 2462 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2463 void *arg, uint32_t evt) 2464 { 2465 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2466 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2467 spin_lock_irq(&ndlp->lock); 2468 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2469 spin_unlock_irq(&ndlp->lock); 2470 lpfc_disc_set_adisc(vport, ndlp); 2471 return ndlp->nlp_state; 2472 } 2473 2474 static uint32_t 2475 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2476 void *arg, uint32_t evt) 2477 { 2478 /* 2479 * DevLoss has timed out and is calling for Device Remove. 2480 * In this case, abort the LOGO and cleanup the ndlp 2481 */ 2482 2483 lpfc_unreg_rpi(vport, ndlp); 2484 /* software abort outstanding PLOGI */ 2485 lpfc_els_abort(vport->phba, ndlp); 2486 lpfc_drop_node(vport, ndlp); 2487 return NLP_STE_FREED_NODE; 2488 } 2489 2490 static uint32_t 2491 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2492 struct lpfc_nodelist *ndlp, 2493 void *arg, uint32_t evt) 2494 { 2495 /* 2496 * Device Recovery events have no meaning for a node with a LOGO 2497 * outstanding. The LOGO has to complete first and handle the 2498 * node from that point. 2499 */ 2500 return ndlp->nlp_state; 2501 } 2502 2503 static uint32_t 2504 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2505 void *arg, uint32_t evt) 2506 { 2507 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2508 2509 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2510 return ndlp->nlp_state; 2511 } 2512 2513 static uint32_t 2514 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2515 void *arg, uint32_t evt) 2516 { 2517 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2518 2519 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2520 return ndlp->nlp_state; 2521 2522 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2523 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2524 return ndlp->nlp_state; 2525 } 2526 2527 static uint32_t 2528 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2529 void *arg, uint32_t evt) 2530 { 2531 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2532 2533 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2534 return ndlp->nlp_state; 2535 } 2536 2537 static uint32_t 2538 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2539 void *arg, uint32_t evt) 2540 { 2541 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2542 2543 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2544 return ndlp->nlp_state; 2545 } 2546 2547 static uint32_t 2548 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2549 void *arg, uint32_t evt) 2550 { 2551 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2552 2553 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2554 return ndlp->nlp_state; 2555 } 2556 2557 static uint32_t 2558 lpfc_device_rm_unmap_node(struct lpfc_vport *vport, 2559 struct lpfc_nodelist *ndlp, 2560 void *arg, 2561 uint32_t evt) 2562 { 2563 lpfc_drop_node(vport, ndlp); 2564 return NLP_STE_FREED_NODE; 2565 } 2566 2567 static uint32_t 2568 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2569 struct lpfc_nodelist *ndlp, 2570 void *arg, 2571 uint32_t evt) 2572 { 2573 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2574 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2575 spin_lock_irq(&ndlp->lock); 2576 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2577 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2578 spin_unlock_irq(&ndlp->lock); 2579 lpfc_disc_set_adisc(vport, ndlp); 2580 2581 return ndlp->nlp_state; 2582 } 2583 2584 static uint32_t 2585 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2586 void *arg, uint32_t evt) 2587 { 2588 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2589 2590 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2591 return ndlp->nlp_state; 2592 } 2593 2594 static uint32_t 2595 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2596 void *arg, uint32_t evt) 2597 { 2598 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2599 2600 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2601 return ndlp->nlp_state; 2602 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2603 return ndlp->nlp_state; 2604 } 2605 2606 static uint32_t 2607 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2608 void *arg, uint32_t evt) 2609 { 2610 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2611 2612 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2613 return ndlp->nlp_state; 2614 } 2615 2616 static uint32_t 2617 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2618 struct lpfc_nodelist *ndlp, 2619 void *arg, uint32_t evt) 2620 { 2621 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2622 2623 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2624 return ndlp->nlp_state; 2625 } 2626 2627 static uint32_t 2628 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2629 void *arg, uint32_t evt) 2630 { 2631 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2632 2633 /* flush the target */ 2634 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2635 2636 /* Treat like rcv logo */ 2637 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2638 return ndlp->nlp_state; 2639 } 2640 2641 static uint32_t 2642 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2643 struct lpfc_nodelist *ndlp, 2644 void *arg, 2645 uint32_t evt) 2646 { 2647 lpfc_disc_set_adisc(vport, ndlp); 2648 2649 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2650 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2651 spin_lock_irq(&ndlp->lock); 2652 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2653 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2654 spin_unlock_irq(&ndlp->lock); 2655 return ndlp->nlp_state; 2656 } 2657 2658 static uint32_t 2659 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2660 void *arg, uint32_t evt) 2661 { 2662 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2663 2664 /* Ignore PLOGI if we have an outstanding LOGO */ 2665 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2666 return ndlp->nlp_state; 2667 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2668 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2669 spin_lock_irq(&ndlp->lock); 2670 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2671 spin_unlock_irq(&ndlp->lock); 2672 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2673 /* send PLOGI immediately, move to PLOGI issue state */ 2674 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2675 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2676 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2677 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2678 } 2679 } 2680 return ndlp->nlp_state; 2681 } 2682 2683 static uint32_t 2684 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2685 void *arg, uint32_t evt) 2686 { 2687 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2688 struct ls_rjt stat; 2689 2690 memset(&stat, 0, sizeof (struct ls_rjt)); 2691 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2692 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2693 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2694 2695 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2696 /* 2697 * ADISC nodes will be handled in regular discovery path after 2698 * receiving response from NS. 2699 * 2700 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2701 */ 2702 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2703 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2704 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2705 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2706 } 2707 } 2708 return ndlp->nlp_state; 2709 } 2710 2711 static uint32_t 2712 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2713 void *arg, uint32_t evt) 2714 { 2715 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2716 2717 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2718 return ndlp->nlp_state; 2719 } 2720 2721 static uint32_t 2722 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2723 void *arg, uint32_t evt) 2724 { 2725 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2726 2727 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2728 /* 2729 * Do not start discovery if discovery is about to start 2730 * or discovery in progress for this node. Starting discovery 2731 * here will affect the counting of discovery threads. 2732 */ 2733 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2734 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2735 /* 2736 * ADISC nodes will be handled in regular discovery path after 2737 * receiving response from NS. 2738 * 2739 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2740 */ 2741 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2742 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2743 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2744 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2745 } 2746 } 2747 return ndlp->nlp_state; 2748 } 2749 2750 static uint32_t 2751 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2752 void *arg, uint32_t evt) 2753 { 2754 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2755 2756 spin_lock_irq(&ndlp->lock); 2757 ndlp->nlp_flag |= NLP_LOGO_ACC; 2758 spin_unlock_irq(&ndlp->lock); 2759 2760 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2761 2762 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2763 mod_timer(&ndlp->nlp_delayfunc, 2764 jiffies + msecs_to_jiffies(1000 * 1)); 2765 spin_lock_irq(&ndlp->lock); 2766 ndlp->nlp_flag |= NLP_DELAY_TMO; 2767 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2768 spin_unlock_irq(&ndlp->lock); 2769 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2770 } else { 2771 spin_lock_irq(&ndlp->lock); 2772 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2773 spin_unlock_irq(&ndlp->lock); 2774 } 2775 return ndlp->nlp_state; 2776 } 2777 2778 static uint32_t 2779 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2780 void *arg, uint32_t evt) 2781 { 2782 struct lpfc_hba *phba = vport->phba; 2783 struct lpfc_iocbq *cmdiocb, *rspiocb; 2784 u32 ulp_status; 2785 2786 cmdiocb = (struct lpfc_iocbq *) arg; 2787 rspiocb = cmdiocb->rsp_iocb; 2788 2789 ulp_status = get_job_ulpstatus(phba, rspiocb); 2790 2791 if (ulp_status) 2792 return NLP_STE_FREED_NODE; 2793 2794 return ndlp->nlp_state; 2795 } 2796 2797 static uint32_t 2798 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2799 void *arg, uint32_t evt) 2800 { 2801 struct lpfc_hba *phba = vport->phba; 2802 struct lpfc_iocbq *cmdiocb, *rspiocb; 2803 u32 ulp_status; 2804 2805 cmdiocb = (struct lpfc_iocbq *) arg; 2806 rspiocb = cmdiocb->rsp_iocb; 2807 2808 ulp_status = get_job_ulpstatus(phba, rspiocb); 2809 2810 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2811 lpfc_drop_node(vport, ndlp); 2812 return NLP_STE_FREED_NODE; 2813 } 2814 return ndlp->nlp_state; 2815 } 2816 2817 static uint32_t 2818 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2819 void *arg, uint32_t evt) 2820 { 2821 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2822 2823 /* For the fabric port just clear the fc flags. */ 2824 if (ndlp->nlp_DID == Fabric_DID) { 2825 spin_lock_irq(shost->host_lock); 2826 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2827 spin_unlock_irq(shost->host_lock); 2828 } 2829 lpfc_unreg_rpi(vport, ndlp); 2830 return ndlp->nlp_state; 2831 } 2832 2833 static uint32_t 2834 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2835 void *arg, uint32_t evt) 2836 { 2837 struct lpfc_hba *phba = vport->phba; 2838 struct lpfc_iocbq *cmdiocb, *rspiocb; 2839 u32 ulp_status; 2840 2841 cmdiocb = (struct lpfc_iocbq *) arg; 2842 rspiocb = cmdiocb->rsp_iocb; 2843 2844 ulp_status = get_job_ulpstatus(phba, rspiocb); 2845 2846 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2847 lpfc_drop_node(vport, ndlp); 2848 return NLP_STE_FREED_NODE; 2849 } 2850 return ndlp->nlp_state; 2851 } 2852 2853 static uint32_t 2854 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2855 struct lpfc_nodelist *ndlp, 2856 void *arg, uint32_t evt) 2857 { 2858 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2859 MAILBOX_t *mb = &pmb->u.mb; 2860 2861 if (!mb->mbxStatus) { 2862 /* SLI4 ports have preallocated logical rpis. */ 2863 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2864 ndlp->nlp_rpi = mb->un.varWords[0]; 2865 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2866 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 2867 lpfc_unreg_rpi(vport, ndlp); 2868 } 2869 } else { 2870 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2871 lpfc_drop_node(vport, ndlp); 2872 return NLP_STE_FREED_NODE; 2873 } 2874 } 2875 return ndlp->nlp_state; 2876 } 2877 2878 static uint32_t 2879 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2880 void *arg, uint32_t evt) 2881 { 2882 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2883 spin_lock_irq(&ndlp->lock); 2884 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2885 spin_unlock_irq(&ndlp->lock); 2886 return ndlp->nlp_state; 2887 } 2888 lpfc_drop_node(vport, ndlp); 2889 return NLP_STE_FREED_NODE; 2890 } 2891 2892 static uint32_t 2893 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2894 void *arg, uint32_t evt) 2895 { 2896 /* Don't do anything that will mess up processing of the 2897 * previous RSCN. 2898 */ 2899 if (vport->fc_flag & FC_RSCN_DEFERRED) 2900 return ndlp->nlp_state; 2901 2902 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2903 spin_lock_irq(&ndlp->lock); 2904 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2905 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2906 spin_unlock_irq(&ndlp->lock); 2907 return ndlp->nlp_state; 2908 } 2909 2910 2911 /* This next section defines the NPort Discovery State Machine */ 2912 2913 /* There are 4 different double linked lists nodelist entries can reside on. 2914 * The plogi list and adisc list are used when Link Up discovery or RSCN 2915 * processing is needed. Each list holds the nodes that we will send PLOGI 2916 * or ADISC on. These lists will keep track of what nodes will be effected 2917 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2918 * The unmapped_list will contain all nodes that we have successfully logged 2919 * into at the Fibre Channel level. The mapped_list will contain all nodes 2920 * that are mapped FCP targets. 2921 */ 2922 /* 2923 * The bind list is a list of undiscovered (potentially non-existent) nodes 2924 * that we have saved binding information on. This information is used when 2925 * nodes transition from the unmapped to the mapped list. 2926 */ 2927 /* For UNUSED_NODE state, the node has just been allocated . 2928 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2929 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2930 * and put on the unmapped list. For ADISC processing, the node is taken off 2931 * the ADISC list and placed on either the mapped or unmapped list (depending 2932 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2933 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2934 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2935 * node, the node is taken off the unmapped list. The binding list is checked 2936 * for a valid binding, or a binding is automatically assigned. If binding 2937 * assignment is unsuccessful, the node is left on the unmapped list. If 2938 * binding assignment is successful, the associated binding list entry (if 2939 * any) is removed, and the node is placed on the mapped list. 2940 */ 2941 /* 2942 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2943 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2944 * expire, all effected nodes will receive a DEVICE_RM event. 2945 */ 2946 /* 2947 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2948 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2949 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2950 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2951 * we will first process the ADISC list. 32 entries are processed initially and 2952 * ADISC is initited for each one. Completions / Events for each node are 2953 * funnelled thru the state machine. As each node finishes ADISC processing, it 2954 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2955 * waiting, and the ADISC list count is identically 0, then we are done. For 2956 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2957 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2958 * list. 32 entries are processed initially and PLOGI is initited for each one. 2959 * Completions / Events for each node are funnelled thru the state machine. As 2960 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2961 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2962 * indentically 0, then we are done. We have now completed discovery / RSCN 2963 * handling. Upon completion, ALL nodes should be on either the mapped or 2964 * unmapped lists. 2965 */ 2966 2967 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2968 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2969 /* Action routine Event Current State */ 2970 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2971 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2972 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2973 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2974 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2975 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2976 lpfc_disc_illegal, /* CMPL_PLOGI */ 2977 lpfc_disc_illegal, /* CMPL_PRLI */ 2978 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2979 lpfc_disc_illegal, /* CMPL_ADISC */ 2980 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2981 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2982 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2983 2984 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2985 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2986 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2987 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2988 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2989 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2990 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2991 lpfc_disc_illegal, /* CMPL_PRLI */ 2992 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2993 lpfc_disc_illegal, /* CMPL_ADISC */ 2994 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2995 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2996 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2997 2998 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2999 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 3000 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 3001 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 3002 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 3003 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 3004 lpfc_disc_illegal, /* CMPL_PLOGI */ 3005 lpfc_disc_illegal, /* CMPL_PRLI */ 3006 lpfc_disc_illegal, /* CMPL_LOGO */ 3007 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 3008 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3009 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 3010 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 3011 3012 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 3013 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 3014 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 3015 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 3016 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 3017 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 3018 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3019 lpfc_disc_illegal, /* CMPL_PRLI */ 3020 lpfc_disc_illegal, /* CMPL_LOGO */ 3021 lpfc_disc_illegal, /* CMPL_ADISC */ 3022 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 3023 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 3024 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 3025 3026 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 3027 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 3028 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 3029 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 3030 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 3031 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 3032 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3033 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 3034 lpfc_disc_illegal, /* CMPL_LOGO */ 3035 lpfc_disc_illegal, /* CMPL_ADISC */ 3036 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3037 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 3038 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 3039 3040 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 3041 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 3042 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 3043 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 3044 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 3045 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 3046 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3047 lpfc_disc_illegal, /* CMPL_PRLI */ 3048 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 3049 lpfc_disc_illegal, /* CMPL_ADISC */ 3050 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3051 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 3052 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 3053 3054 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 3055 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 3056 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 3057 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 3058 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 3059 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 3060 lpfc_disc_illegal, /* CMPL_PLOGI */ 3061 lpfc_disc_illegal, /* CMPL_PRLI */ 3062 lpfc_disc_illegal, /* CMPL_LOGO */ 3063 lpfc_disc_illegal, /* CMPL_ADISC */ 3064 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3065 lpfc_device_rm_unmap_node, /* DEVICE_RM */ 3066 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 3067 3068 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 3069 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 3070 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 3071 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 3072 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 3073 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 3074 lpfc_disc_illegal, /* CMPL_PLOGI */ 3075 lpfc_disc_illegal, /* CMPL_PRLI */ 3076 lpfc_disc_illegal, /* CMPL_LOGO */ 3077 lpfc_disc_illegal, /* CMPL_ADISC */ 3078 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3079 lpfc_disc_illegal, /* DEVICE_RM */ 3080 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 3081 3082 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 3083 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 3084 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 3085 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 3086 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 3087 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 3088 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 3089 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 3090 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 3091 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 3092 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 3093 lpfc_device_rm_npr_node, /* DEVICE_RM */ 3094 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 3095 }; 3096 3097 int 3098 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3099 void *arg, uint32_t evt) 3100 { 3101 uint32_t cur_state, rc; 3102 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 3103 uint32_t); 3104 uint32_t got_ndlp = 0; 3105 uint32_t data1; 3106 3107 if (lpfc_nlp_get(ndlp)) 3108 got_ndlp = 1; 3109 3110 cur_state = ndlp->nlp_state; 3111 3112 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3113 ((uint32_t)ndlp->nlp_type)); 3114 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 3115 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3116 "0211 DSM in event x%x on NPort x%x in " 3117 "state %d rpi x%x Data: x%x x%x\n", 3118 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, 3119 ndlp->nlp_flag, data1); 3120 3121 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3122 "DSM in: evt:%d ste:%d did:x%x", 3123 evt, cur_state, ndlp->nlp_DID); 3124 3125 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 3126 rc = (func) (vport, ndlp, arg, evt); 3127 3128 /* DSM out state <rc> on NPort <nlp_DID> */ 3129 if (got_ndlp) { 3130 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3131 ((uint32_t)ndlp->nlp_type)); 3132 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3133 "0212 DSM out state %d on NPort x%x " 3134 "rpi x%x Data: x%x x%x\n", 3135 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag, 3136 data1); 3137 3138 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3139 "DSM out: ste:%d did:x%x flg:x%x", 3140 rc, ndlp->nlp_DID, ndlp->nlp_flag); 3141 /* Decrement the ndlp reference count held for this function */ 3142 lpfc_nlp_put(ndlp); 3143 } else { 3144 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3145 "0213 DSM out state %d on NPort free\n", rc); 3146 3147 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3148 "DSM out: ste:%d did:x%x flg:x%x", 3149 rc, 0, 0); 3150 } 3151 3152 return rc; 3153 } 3154