1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2022 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/pci.h> 26 #include <linux/slab.h> 27 #include <linux/interrupt.h> 28 29 #include <scsi/scsi.h> 30 #include <scsi/scsi_device.h> 31 #include <scsi/scsi_host.h> 32 #include <scsi/scsi_transport_fc.h> 33 #include <scsi/fc/fc_fs.h> 34 35 #include "lpfc_hw4.h" 36 #include "lpfc_hw.h" 37 #include "lpfc_sli.h" 38 #include "lpfc_sli4.h" 39 #include "lpfc_nl.h" 40 #include "lpfc_disc.h" 41 #include "lpfc.h" 42 #include "lpfc_scsi.h" 43 #include "lpfc_nvme.h" 44 #include "lpfc_logmsg.h" 45 #include "lpfc_crtn.h" 46 #include "lpfc_vport.h" 47 #include "lpfc_debugfs.h" 48 49 50 /* Called to verify a rcv'ed ADISC was intended for us. */ 51 static int 52 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 53 struct lpfc_name *nn, struct lpfc_name *pn) 54 { 55 /* First, we MUST have a RPI registered */ 56 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) 57 return 0; 58 59 /* Compare the ADISC rsp WWNN / WWPN matches our internal node 60 * table entry for that node. 61 */ 62 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) 63 return 0; 64 65 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) 66 return 0; 67 68 /* we match, return success */ 69 return 1; 70 } 71 72 int 73 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 74 struct serv_parm *sp, uint32_t class, int flogi) 75 { 76 volatile struct serv_parm *hsp = &vport->fc_sparam; 77 uint16_t hsp_value, ssp_value = 0; 78 79 /* 80 * The receive data field size and buffer-to-buffer receive data field 81 * size entries are 16 bits but are represented as two 8-bit fields in 82 * the driver data structure to account for rsvd bits and other control 83 * bits. Reconstruct and compare the fields as a 16-bit values before 84 * correcting the byte values. 85 */ 86 if (sp->cls1.classValid) { 87 if (!flogi) { 88 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) | 89 hsp->cls1.rcvDataSizeLsb); 90 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) | 91 sp->cls1.rcvDataSizeLsb); 92 if (!ssp_value) 93 goto bad_service_param; 94 if (ssp_value > hsp_value) { 95 sp->cls1.rcvDataSizeLsb = 96 hsp->cls1.rcvDataSizeLsb; 97 sp->cls1.rcvDataSizeMsb = 98 hsp->cls1.rcvDataSizeMsb; 99 } 100 } 101 } else if (class == CLASS1) 102 goto bad_service_param; 103 if (sp->cls2.classValid) { 104 if (!flogi) { 105 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) | 106 hsp->cls2.rcvDataSizeLsb); 107 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) | 108 sp->cls2.rcvDataSizeLsb); 109 if (!ssp_value) 110 goto bad_service_param; 111 if (ssp_value > hsp_value) { 112 sp->cls2.rcvDataSizeLsb = 113 hsp->cls2.rcvDataSizeLsb; 114 sp->cls2.rcvDataSizeMsb = 115 hsp->cls2.rcvDataSizeMsb; 116 } 117 } 118 } else if (class == CLASS2) 119 goto bad_service_param; 120 if (sp->cls3.classValid) { 121 if (!flogi) { 122 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) | 123 hsp->cls3.rcvDataSizeLsb); 124 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) | 125 sp->cls3.rcvDataSizeLsb); 126 if (!ssp_value) 127 goto bad_service_param; 128 if (ssp_value > hsp_value) { 129 sp->cls3.rcvDataSizeLsb = 130 hsp->cls3.rcvDataSizeLsb; 131 sp->cls3.rcvDataSizeMsb = 132 hsp->cls3.rcvDataSizeMsb; 133 } 134 } 135 } else if (class == CLASS3) 136 goto bad_service_param; 137 138 /* 139 * Preserve the upper four bits of the MSB from the PLOGI response. 140 * These bits contain the Buffer-to-Buffer State Change Number 141 * from the target and need to be passed to the FW. 142 */ 143 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; 144 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; 145 if (ssp_value > hsp_value) { 146 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; 147 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | 148 (hsp->cmn.bbRcvSizeMsb & 0x0F); 149 } 150 151 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); 152 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); 153 return 1; 154 bad_service_param: 155 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 156 "0207 Device %x " 157 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 158 "invalid service parameters. Ignoring device.\n", 159 ndlp->nlp_DID, 160 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 161 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 162 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 163 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 164 return 0; 165 } 166 167 static void * 168 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 169 struct lpfc_iocbq *rspiocb) 170 { 171 struct lpfc_dmabuf *pcmd, *prsp; 172 uint32_t *lp; 173 void *ptr = NULL; 174 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 175 176 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 177 178 /* For lpfc_els_abort, context2 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 struct lpfc_dmabuf *mp; 331 uint64_t nlp_portwwn = 0; 332 uint32_t *lp; 333 union lpfc_wqe128 *wqe; 334 IOCB_t *icmd; 335 struct serv_parm *sp; 336 uint32_t ed_tov; 337 LPFC_MBOXQ_t *link_mbox; 338 LPFC_MBOXQ_t *login_mbox; 339 struct lpfc_iocbq *save_iocb; 340 struct ls_rjt stat; 341 uint32_t vid, flag; 342 int rc; 343 u32 remote_did; 344 345 memset(&stat, 0, sizeof (struct ls_rjt)); 346 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 347 lp = (uint32_t *) pcmd->virt; 348 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 349 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 350 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 351 "0140 PLOGI Reject: invalid pname\n"); 352 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 353 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 354 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 355 NULL); 356 return 0; 357 } 358 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 359 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 360 "0141 PLOGI Reject: invalid nname\n"); 361 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 362 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 363 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 364 NULL); 365 return 0; 366 } 367 368 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 369 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 370 /* Reject this request because invalid parameters */ 371 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 372 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 373 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 374 NULL); 375 return 0; 376 } 377 378 if (phba->sli_rev == LPFC_SLI_REV4) 379 wqe = &cmdiocb->wqe; 380 else 381 icmd = &cmdiocb->iocb; 382 383 /* PLOGI chkparm OK */ 384 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 385 "0114 PLOGI chkparm OK Data: x%x x%x x%x " 386 "x%x x%x x%x\n", 387 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 388 ndlp->nlp_rpi, vport->port_state, 389 vport->fc_flag); 390 391 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 392 ndlp->nlp_fcp_info |= CLASS2; 393 else 394 ndlp->nlp_fcp_info |= CLASS3; 395 396 ndlp->nlp_class_sup = 0; 397 if (sp->cls1.classValid) 398 ndlp->nlp_class_sup |= FC_COS_CLASS1; 399 if (sp->cls2.classValid) 400 ndlp->nlp_class_sup |= FC_COS_CLASS2; 401 if (sp->cls3.classValid) 402 ndlp->nlp_class_sup |= FC_COS_CLASS3; 403 if (sp->cls4.classValid) 404 ndlp->nlp_class_sup |= FC_COS_CLASS4; 405 ndlp->nlp_maxframe = 406 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 407 /* if already logged in, do implicit logout */ 408 switch (ndlp->nlp_state) { 409 case NLP_STE_NPR_NODE: 410 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 411 break; 412 fallthrough; 413 case NLP_STE_REG_LOGIN_ISSUE: 414 case NLP_STE_PRLI_ISSUE: 415 case NLP_STE_UNMAPPED_NODE: 416 case NLP_STE_MAPPED_NODE: 417 /* For initiators, lpfc_plogi_confirm_nport skips fabric did. 418 * For target mode, execute implicit logo. 419 * Fabric nodes go into NPR. 420 */ 421 if (!(ndlp->nlp_type & NLP_FABRIC) && 422 !(phba->nvmet_support)) { 423 /* Clear ndlp info, since follow up PRLI may have 424 * updated ndlp information 425 */ 426 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 427 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 428 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 429 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 430 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 431 432 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 433 ndlp, NULL); 434 return 1; 435 } 436 if (nlp_portwwn != 0 && 437 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 438 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 439 "0143 PLOGI recv'd from DID: x%x " 440 "WWPN changed: old %llx new %llx\n", 441 ndlp->nlp_DID, 442 (unsigned long long)nlp_portwwn, 443 (unsigned long long) 444 wwn_to_u64(sp->portName.u.wwn)); 445 446 /* Notify transport of connectivity loss to trigger cleanup. */ 447 if (phba->nvmet_support && 448 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 449 lpfc_nvmet_invalidate_host(phba, ndlp); 450 451 ndlp->nlp_prev_state = ndlp->nlp_state; 452 /* rport needs to be unregistered first */ 453 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 454 break; 455 } 456 457 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 458 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 459 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 460 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 461 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 462 463 login_mbox = NULL; 464 link_mbox = NULL; 465 save_iocb = NULL; 466 467 /* Check for Nport to NPort pt2pt protocol */ 468 if ((vport->fc_flag & FC_PT2PT) && 469 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 470 /* rcv'ed PLOGI decides what our NPortId will be */ 471 if (phba->sli_rev == LPFC_SLI_REV4) { 472 vport->fc_myDID = bf_get(els_rsp64_sid, 473 &cmdiocb->wqe.xmit_els_rsp); 474 } else { 475 vport->fc_myDID = icmd->un.rcvels.parmRo; 476 } 477 478 /* If there is an outstanding FLOGI, abort it now. 479 * The remote NPort is not going to ACC our FLOGI 480 * if its already issuing a PLOGI for pt2pt mode. 481 * This indicates our FLOGI was dropped; however, we 482 * must have ACCed the remote NPorts FLOGI to us 483 * to make it here. 484 */ 485 if (phba->hba_flag & HBA_FLOGI_OUTSTANDING) 486 lpfc_els_abort_flogi(phba); 487 488 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 489 if (sp->cmn.edtovResolution) { 490 /* E_D_TOV ticks are in nanoseconds */ 491 ed_tov = (phba->fc_edtov + 999999) / 1000000; 492 } 493 494 /* 495 * For pt-to-pt, use the larger EDTOV 496 * RATOV = 2 * EDTOV 497 */ 498 if (ed_tov > phba->fc_edtov) 499 phba->fc_edtov = ed_tov; 500 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 501 502 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 503 504 /* Issue CONFIG_LINK for SLI3 or REG_VFI for SLI4, 505 * to account for updated TOV's / parameters 506 */ 507 if (phba->sli_rev == LPFC_SLI_REV4) 508 lpfc_issue_reg_vfi(vport); 509 else { 510 link_mbox = mempool_alloc(phba->mbox_mem_pool, 511 GFP_KERNEL); 512 if (!link_mbox) 513 goto out; 514 lpfc_config_link(phba, link_mbox); 515 link_mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 516 link_mbox->vport = vport; 517 link_mbox->ctx_ndlp = ndlp; 518 519 rc = lpfc_sli_issue_mbox(phba, link_mbox, MBX_NOWAIT); 520 if (rc == MBX_NOT_FINISHED) { 521 mempool_free(link_mbox, phba->mbox_mem_pool); 522 goto out; 523 } 524 } 525 526 lpfc_can_disctmo(vport); 527 } 528 529 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 530 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 531 sp->cmn.valid_vendor_ver_level) { 532 vid = be32_to_cpu(sp->un.vv.vid); 533 flag = be32_to_cpu(sp->un.vv.flags); 534 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) 535 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 536 } 537 538 login_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 539 if (!login_mbox) 540 goto out; 541 542 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL); 543 if (!save_iocb) 544 goto out; 545 546 /* Save info from cmd IOCB to be used in rsp after all mbox completes */ 547 memcpy((uint8_t *)save_iocb, (uint8_t *)cmdiocb, 548 sizeof(struct lpfc_iocbq)); 549 550 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 551 if (phba->sli_rev == LPFC_SLI_REV4) 552 lpfc_unreg_rpi(vport, ndlp); 553 554 /* Issue REG_LOGIN first, before ACCing the PLOGI, thus we will 555 * always be deferring the ACC. 556 */ 557 if (phba->sli_rev == LPFC_SLI_REV4) 558 remote_did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest); 559 else 560 remote_did = icmd->un.rcvels.remoteID; 561 rc = lpfc_reg_rpi(phba, vport->vpi, remote_did, 562 (uint8_t *)sp, login_mbox, ndlp->nlp_rpi); 563 if (rc) 564 goto out; 565 566 login_mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 567 login_mbox->vport = vport; 568 569 /* 570 * If there is an outstanding PLOGI issued, abort it before 571 * sending ACC rsp for received PLOGI. If pending plogi 572 * is not canceled here, the plogi will be rejected by 573 * remote port and will be retried. On a configuration with 574 * single discovery thread, this will cause a huge delay in 575 * discovery. Also this will cause multiple state machines 576 * running in parallel for this node. 577 * This only applies to a fabric environment. 578 */ 579 if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) && 580 (vport->fc_flag & FC_FABRIC)) { 581 /* software abort outstanding PLOGI */ 582 lpfc_els_abort(phba, ndlp); 583 } 584 585 if ((vport->port_type == LPFC_NPIV_PORT && 586 vport->cfg_restrict_login)) { 587 588 /* no deferred ACC */ 589 kfree(save_iocb); 590 591 /* This is an NPIV SLI4 instance that does not need to register 592 * a default RPI. 593 */ 594 if (phba->sli_rev == LPFC_SLI_REV4) { 595 mp = (struct lpfc_dmabuf *)login_mbox->ctx_buf; 596 if (mp) { 597 lpfc_mbuf_free(phba, mp->virt, mp->phys); 598 kfree(mp); 599 } 600 mempool_free(login_mbox, phba->mbox_mem_pool); 601 login_mbox = NULL; 602 } else { 603 /* In order to preserve RPIs, we want to cleanup 604 * the default RPI the firmware created to rcv 605 * this ELS request. The only way to do this is 606 * to register, then unregister the RPI. 607 */ 608 spin_lock_irq(&ndlp->lock); 609 ndlp->nlp_flag |= (NLP_RM_DFLT_RPI | NLP_ACC_REGLOGIN | 610 NLP_RCV_PLOGI); 611 spin_unlock_irq(&ndlp->lock); 612 } 613 614 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 615 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 616 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 617 ndlp, login_mbox); 618 if (rc) 619 mempool_free(login_mbox, phba->mbox_mem_pool); 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 login_mbox->context3 = save_iocb; /* For PLOGI ACC */ 641 642 spin_lock_irq(&ndlp->lock); 643 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 644 spin_unlock_irq(&ndlp->lock); 645 646 /* Start the ball rolling by issuing REG_LOGIN here */ 647 rc = lpfc_sli_issue_mbox(phba, login_mbox, MBX_NOWAIT); 648 if (rc == MBX_NOT_FINISHED) 649 goto out; 650 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); 651 652 return 1; 653 out: 654 kfree(save_iocb); 655 if (login_mbox) 656 mempool_free(login_mbox, phba->mbox_mem_pool); 657 658 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 659 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 660 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 661 return 0; 662 } 663 664 /** 665 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 666 * @phba: pointer to lpfc hba data structure. 667 * @mboxq: pointer to mailbox object 668 * 669 * This routine is invoked to issue a completion to a rcv'ed 670 * ADISC or PDISC after the paused RPI has been resumed. 671 **/ 672 static void 673 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 674 { 675 struct lpfc_vport *vport; 676 struct lpfc_iocbq *elsiocb; 677 struct lpfc_nodelist *ndlp; 678 uint32_t cmd; 679 680 elsiocb = (struct lpfc_iocbq *)mboxq->ctx_buf; 681 ndlp = (struct lpfc_nodelist *)mboxq->ctx_ndlp; 682 vport = mboxq->vport; 683 cmd = elsiocb->drvrTimeout; 684 685 if (cmd == ELS_CMD_ADISC) { 686 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 687 } else { 688 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 689 ndlp, NULL); 690 } 691 692 /* This nlp_put pairs with lpfc_sli4_resume_rpi */ 693 lpfc_nlp_put(ndlp); 694 695 kfree(elsiocb); 696 mempool_free(mboxq, phba->mbox_mem_pool); 697 } 698 699 static int 700 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 701 struct lpfc_iocbq *cmdiocb) 702 { 703 struct lpfc_hba *phba = vport->phba; 704 struct lpfc_iocbq *elsiocb; 705 struct lpfc_dmabuf *pcmd; 706 struct serv_parm *sp; 707 struct lpfc_name *pnn, *ppn; 708 struct ls_rjt stat; 709 ADISC *ap; 710 uint32_t *lp; 711 uint32_t cmd; 712 713 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 714 lp = (uint32_t *) pcmd->virt; 715 716 cmd = *lp++; 717 if (cmd == ELS_CMD_ADISC) { 718 ap = (ADISC *) lp; 719 pnn = (struct lpfc_name *) & ap->nodeName; 720 ppn = (struct lpfc_name *) & ap->portName; 721 } else { 722 sp = (struct serv_parm *) lp; 723 pnn = (struct lpfc_name *) & sp->nodeName; 724 ppn = (struct lpfc_name *) & sp->portName; 725 } 726 727 if (get_job_ulpstatus(phba, cmdiocb) == 0 && 728 lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 729 730 /* 731 * As soon as we send ACC, the remote NPort can 732 * start sending us data. Thus, for SLI4 we must 733 * resume the RPI before the ACC goes out. 734 */ 735 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 736 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 737 GFP_KERNEL); 738 if (elsiocb) { 739 /* Save info from cmd IOCB used in rsp */ 740 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 741 sizeof(struct lpfc_iocbq)); 742 743 /* Save the ELS cmd */ 744 elsiocb->drvrTimeout = cmd; 745 746 lpfc_sli4_resume_rpi(ndlp, 747 lpfc_mbx_cmpl_resume_rpi, elsiocb); 748 goto out; 749 } 750 } 751 752 if (cmd == ELS_CMD_ADISC) { 753 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 754 } else { 755 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 756 ndlp, NULL); 757 } 758 out: 759 /* If we are authenticated, move to the proper state. 760 * It is possible an ADISC arrived and the remote nport 761 * is already in MAPPED or UNMAPPED state. Catch this 762 * condition and don't set the nlp_state again because 763 * it causes an unnecessary transport unregister/register. 764 * 765 * Nodes marked for ADISC will move MAPPED or UNMAPPED state 766 * after issuing ADISC 767 */ 768 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 769 if ((ndlp->nlp_state != NLP_STE_MAPPED_NODE) && 770 !(ndlp->nlp_flag & NLP_NPR_ADISC)) 771 lpfc_nlp_set_state(vport, ndlp, 772 NLP_STE_MAPPED_NODE); 773 } 774 775 return 1; 776 } 777 /* Reject this request because invalid parameters */ 778 stat.un.b.lsRjtRsvd0 = 0; 779 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 780 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 781 stat.un.b.vendorUnique = 0; 782 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 783 784 /* 1 sec timeout */ 785 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 786 787 spin_lock_irq(&ndlp->lock); 788 ndlp->nlp_flag |= NLP_DELAY_TMO; 789 spin_unlock_irq(&ndlp->lock); 790 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 791 ndlp->nlp_prev_state = ndlp->nlp_state; 792 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 793 return 0; 794 } 795 796 static int 797 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 798 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 799 { 800 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 801 struct lpfc_hba *phba = vport->phba; 802 struct lpfc_vport **vports; 803 int i, active_vlink_present = 0 ; 804 805 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 806 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 807 * PLOGIs during LOGO storms from a device. 808 */ 809 spin_lock_irq(&ndlp->lock); 810 ndlp->nlp_flag |= NLP_LOGO_ACC; 811 spin_unlock_irq(&ndlp->lock); 812 if (els_cmd == ELS_CMD_PRLO) 813 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 814 else 815 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 816 817 /* This clause allows the initiator to ACC the LOGO back to the 818 * Fabric Domain Controller. It does deliberately skip all other 819 * steps because some fabrics send RDP requests after logging out 820 * from the initiator. 821 */ 822 if (ndlp->nlp_type & NLP_FABRIC && 823 ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK)) 824 return 0; 825 826 /* Notify transport of connectivity loss to trigger cleanup. */ 827 if (phba->nvmet_support && 828 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 829 lpfc_nvmet_invalidate_host(phba, ndlp); 830 831 if (ndlp->nlp_DID == Fabric_DID) { 832 if (vport->port_state <= LPFC_FDISC) 833 goto out; 834 lpfc_linkdown_port(vport); 835 spin_lock_irq(shost->host_lock); 836 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 837 spin_unlock_irq(shost->host_lock); 838 vports = lpfc_create_vport_work_array(phba); 839 if (vports) { 840 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 841 i++) { 842 if ((!(vports[i]->fc_flag & 843 FC_VPORT_LOGO_RCVD)) && 844 (vports[i]->port_state > LPFC_FDISC)) { 845 active_vlink_present = 1; 846 break; 847 } 848 } 849 lpfc_destroy_vport_work_array(phba, vports); 850 } 851 852 /* 853 * Don't re-instantiate if vport is marked for deletion. 854 * If we are here first then vport_delete is going to wait 855 * for discovery to complete. 856 */ 857 if (!(vport->load_flag & FC_UNLOADING) && 858 active_vlink_present) { 859 /* 860 * If there are other active VLinks present, 861 * re-instantiate the Vlink using FDISC. 862 */ 863 mod_timer(&ndlp->nlp_delayfunc, 864 jiffies + msecs_to_jiffies(1000)); 865 spin_lock_irq(&ndlp->lock); 866 ndlp->nlp_flag |= NLP_DELAY_TMO; 867 spin_unlock_irq(&ndlp->lock); 868 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 869 vport->port_state = LPFC_FDISC; 870 } else { 871 spin_lock_irq(shost->host_lock); 872 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 873 spin_unlock_irq(shost->host_lock); 874 lpfc_retry_pport_discovery(phba); 875 } 876 } else if ((!(ndlp->nlp_type & NLP_FABRIC) && 877 ((ndlp->nlp_type & NLP_FCP_TARGET) || 878 (ndlp->nlp_type & NLP_NVME_TARGET) || 879 (vport->fc_flag & FC_PT2PT))) || 880 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { 881 /* Only try to re-login if this is NOT a Fabric Node 882 * AND the remote NPORT is a FCP/NVME Target or we 883 * are in pt2pt mode. NLP_STE_ADISC_ISSUE is a special 884 * case for LOGO as a response to ADISC behavior. 885 */ 886 mod_timer(&ndlp->nlp_delayfunc, 887 jiffies + msecs_to_jiffies(1000 * 1)); 888 spin_lock_irq(&ndlp->lock); 889 ndlp->nlp_flag |= NLP_DELAY_TMO; 890 spin_unlock_irq(&ndlp->lock); 891 892 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 893 } 894 out: 895 /* Unregister from backend, could have been skipped due to ADISC */ 896 lpfc_nlp_unreg_node(vport, ndlp); 897 898 ndlp->nlp_prev_state = ndlp->nlp_state; 899 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 900 901 spin_lock_irq(&ndlp->lock); 902 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 903 spin_unlock_irq(&ndlp->lock); 904 /* The driver has to wait until the ACC completes before it continues 905 * processing the LOGO. The action will resume in 906 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 907 * unreg_login, the driver waits so the ACC does not get aborted. 908 */ 909 return 0; 910 } 911 912 static uint32_t 913 lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 914 struct lpfc_nodelist *ndlp, 915 struct lpfc_iocbq *cmdiocb) 916 { 917 struct ls_rjt stat; 918 uint32_t *payload; 919 uint32_t cmd; 920 921 payload = ((struct lpfc_dmabuf *)cmdiocb->context2)->virt; 922 cmd = *payload; 923 if (vport->phba->nvmet_support) { 924 /* Must be a NVME PRLI */ 925 if (cmd == ELS_CMD_PRLI) 926 goto out; 927 } else { 928 /* Initiator mode. */ 929 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 930 goto out; 931 } 932 return 1; 933 out: 934 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC, 935 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 936 "state x%x flags x%x\n", 937 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 938 ndlp->nlp_flag); 939 memset(&stat, 0, sizeof(struct ls_rjt)); 940 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 941 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 942 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 943 ndlp, NULL); 944 return 0; 945 } 946 947 static void 948 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 949 struct lpfc_iocbq *cmdiocb) 950 { 951 struct lpfc_hba *phba = vport->phba; 952 struct lpfc_dmabuf *pcmd; 953 uint32_t *lp; 954 PRLI *npr; 955 struct fc_rport *rport = ndlp->rport; 956 u32 roles; 957 958 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 959 lp = (uint32_t *) pcmd->virt; 960 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t)); 961 962 if ((npr->prliType == PRLI_FCP_TYPE) || 963 (npr->prliType == PRLI_NVME_TYPE)) { 964 if (npr->initiatorFunc) { 965 if (npr->prliType == PRLI_FCP_TYPE) 966 ndlp->nlp_type |= NLP_FCP_INITIATOR; 967 if (npr->prliType == PRLI_NVME_TYPE) 968 ndlp->nlp_type |= NLP_NVME_INITIATOR; 969 } 970 if (npr->targetFunc) { 971 if (npr->prliType == PRLI_FCP_TYPE) 972 ndlp->nlp_type |= NLP_FCP_TARGET; 973 if (npr->prliType == PRLI_NVME_TYPE) 974 ndlp->nlp_type |= NLP_NVME_TARGET; 975 if (npr->writeXferRdyDis) 976 ndlp->nlp_flag |= NLP_FIRSTBURST; 977 } 978 if (npr->Retry && ndlp->nlp_type & 979 (NLP_FCP_INITIATOR | NLP_FCP_TARGET)) 980 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 981 982 if (npr->Retry && phba->nsler && 983 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET)) 984 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 985 986 987 /* If this driver is in nvme target mode, set the ndlp's fc4 988 * type to NVME provided the PRLI response claims NVME FC4 989 * type. Target mode does not issue gft_id so doesn't get 990 * the fc4 type set until now. 991 */ 992 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 993 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 994 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 995 } 996 997 /* Fabric Controllers send FCP PRLI as an initiator but should 998 * not get recognized as FCP type and registered with transport. 999 */ 1000 if (npr->prliType == PRLI_FCP_TYPE && 1001 !(ndlp->nlp_type & NLP_FABRIC)) 1002 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1003 } 1004 if (rport) { 1005 /* We need to update the rport role values */ 1006 roles = FC_RPORT_ROLE_UNKNOWN; 1007 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 1008 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 1009 if (ndlp->nlp_type & NLP_FCP_TARGET) 1010 roles |= FC_RPORT_ROLE_FCP_TARGET; 1011 1012 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 1013 "rport rolechg: role:x%x did:x%x flg:x%x", 1014 roles, ndlp->nlp_DID, ndlp->nlp_flag); 1015 1016 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1017 fc_remote_port_rolechg(rport, roles); 1018 } 1019 } 1020 1021 static uint32_t 1022 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 1023 { 1024 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 1025 spin_lock_irq(&ndlp->lock); 1026 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1027 spin_unlock_irq(&ndlp->lock); 1028 return 0; 1029 } 1030 1031 if (!(vport->fc_flag & FC_PT2PT)) { 1032 /* Check config parameter use-adisc or FCP-2 */ 1033 if (vport->cfg_use_adisc && ((vport->fc_flag & FC_RSCN_MODE) || 1034 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 1035 (ndlp->nlp_type & NLP_FCP_TARGET)))) { 1036 spin_lock_irq(&ndlp->lock); 1037 ndlp->nlp_flag |= NLP_NPR_ADISC; 1038 spin_unlock_irq(&ndlp->lock); 1039 return 1; 1040 } 1041 } 1042 1043 spin_lock_irq(&ndlp->lock); 1044 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1045 spin_unlock_irq(&ndlp->lock); 1046 lpfc_unreg_rpi(vport, ndlp); 1047 return 0; 1048 } 1049 1050 /** 1051 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 1052 * @phba : Pointer to lpfc_hba structure. 1053 * @vport: Pointer to lpfc_vport structure. 1054 * @ndlp: Pointer to lpfc_nodelist structure. 1055 * @rpi : rpi to be release. 1056 * 1057 * This function will send a unreg_login mailbox command to the firmware 1058 * to release a rpi. 1059 **/ 1060 static void 1061 lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, 1062 struct lpfc_nodelist *ndlp, uint16_t rpi) 1063 { 1064 LPFC_MBOXQ_t *pmb; 1065 int rc; 1066 1067 /* If there is already an UNREG in progress for this ndlp, 1068 * no need to queue up another one. 1069 */ 1070 if (ndlp->nlp_flag & NLP_UNREG_INP) { 1071 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1072 "1435 release_rpi SKIP UNREG x%x on " 1073 "NPort x%x deferred x%x flg x%x " 1074 "Data: x%px\n", 1075 ndlp->nlp_rpi, ndlp->nlp_DID, 1076 ndlp->nlp_defer_did, 1077 ndlp->nlp_flag, ndlp); 1078 return; 1079 } 1080 1081 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 1082 GFP_KERNEL); 1083 if (!pmb) 1084 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1085 "2796 mailbox memory allocation failed \n"); 1086 else { 1087 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 1088 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1089 pmb->vport = vport; 1090 pmb->ctx_ndlp = lpfc_nlp_get(ndlp); 1091 if (!pmb->ctx_ndlp) { 1092 mempool_free(pmb, phba->mbox_mem_pool); 1093 return; 1094 } 1095 1096 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 1097 (!(vport->fc_flag & FC_OFFLINE_MODE))) 1098 ndlp->nlp_flag |= NLP_UNREG_INP; 1099 1100 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1101 "1437 release_rpi UNREG x%x " 1102 "on NPort x%x flg x%x\n", 1103 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); 1104 1105 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 1106 if (rc == MBX_NOT_FINISHED) 1107 mempool_free(pmb, phba->mbox_mem_pool); 1108 } 1109 } 1110 1111 static uint32_t 1112 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1113 void *arg, uint32_t evt) 1114 { 1115 struct lpfc_hba *phba; 1116 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1117 uint16_t rpi; 1118 1119 phba = vport->phba; 1120 /* Release the RPI if reglogin completing */ 1121 if (!(phba->pport->load_flag & FC_UNLOADING) && 1122 (evt == NLP_EVT_CMPL_REG_LOGIN) && 1123 (!pmb->u.mb.mbxStatus)) { 1124 rpi = pmb->u.mb.un.varWords[0]; 1125 lpfc_release_rpi(phba, vport, ndlp, rpi); 1126 } 1127 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1128 "0271 Illegal State Transition: node x%x " 1129 "event x%x, state x%x Data: x%x x%x\n", 1130 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1131 ndlp->nlp_flag); 1132 return ndlp->nlp_state; 1133 } 1134 1135 static uint32_t 1136 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1137 void *arg, uint32_t evt) 1138 { 1139 /* This transition is only legal if we previously 1140 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 1141 * working on the same NPortID, do nothing for this thread 1142 * to stop it. 1143 */ 1144 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 1145 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1146 "0272 Illegal State Transition: node x%x " 1147 "event x%x, state x%x Data: x%x x%x\n", 1148 ndlp->nlp_DID, evt, ndlp->nlp_state, 1149 ndlp->nlp_rpi, ndlp->nlp_flag); 1150 } 1151 return ndlp->nlp_state; 1152 } 1153 1154 /* Start of Discovery State Machine routines */ 1155 1156 static uint32_t 1157 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1158 void *arg, uint32_t evt) 1159 { 1160 struct lpfc_iocbq *cmdiocb; 1161 1162 cmdiocb = (struct lpfc_iocbq *) arg; 1163 1164 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1165 return ndlp->nlp_state; 1166 } 1167 return NLP_STE_FREED_NODE; 1168 } 1169 1170 static uint32_t 1171 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1172 void *arg, uint32_t evt) 1173 { 1174 lpfc_issue_els_logo(vport, ndlp, 0); 1175 return ndlp->nlp_state; 1176 } 1177 1178 static uint32_t 1179 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1180 void *arg, uint32_t evt) 1181 { 1182 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1183 1184 spin_lock_irq(&ndlp->lock); 1185 ndlp->nlp_flag |= NLP_LOGO_ACC; 1186 spin_unlock_irq(&ndlp->lock); 1187 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1188 1189 return ndlp->nlp_state; 1190 } 1191 1192 static uint32_t 1193 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1194 void *arg, uint32_t evt) 1195 { 1196 return NLP_STE_FREED_NODE; 1197 } 1198 1199 static uint32_t 1200 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1201 void *arg, uint32_t evt) 1202 { 1203 return NLP_STE_FREED_NODE; 1204 } 1205 1206 static uint32_t 1207 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 1208 struct lpfc_nodelist *ndlp, 1209 void *arg, uint32_t evt) 1210 { 1211 return ndlp->nlp_state; 1212 } 1213 1214 static uint32_t 1215 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1216 void *arg, uint32_t evt) 1217 { 1218 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1219 struct lpfc_hba *phba = vport->phba; 1220 struct lpfc_iocbq *cmdiocb = arg; 1221 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1222 uint32_t *lp = (uint32_t *) pcmd->virt; 1223 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1224 struct ls_rjt stat; 1225 int port_cmp; 1226 1227 memset(&stat, 0, sizeof (struct ls_rjt)); 1228 1229 /* For a PLOGI, we only accept if our portname is less 1230 * than the remote portname. 1231 */ 1232 phba->fc_stat.elsLogiCol++; 1233 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1234 sizeof(struct lpfc_name)); 1235 1236 if (port_cmp >= 0) { 1237 /* Reject this request because the remote node will accept 1238 ours */ 1239 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1240 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1241 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1242 NULL); 1243 } else { 1244 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1245 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 1246 (vport->num_disc_nodes)) { 1247 spin_lock_irq(&ndlp->lock); 1248 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1249 spin_unlock_irq(&ndlp->lock); 1250 /* Check if there are more PLOGIs to be sent */ 1251 lpfc_more_plogi(vport); 1252 if (vport->num_disc_nodes == 0) { 1253 spin_lock_irq(shost->host_lock); 1254 vport->fc_flag &= ~FC_NDISC_ACTIVE; 1255 spin_unlock_irq(shost->host_lock); 1256 lpfc_can_disctmo(vport); 1257 lpfc_end_rscn(vport); 1258 } 1259 } 1260 } /* If our portname was less */ 1261 1262 return ndlp->nlp_state; 1263 } 1264 1265 static uint32_t 1266 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1267 void *arg, uint32_t evt) 1268 { 1269 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1270 struct ls_rjt stat; 1271 1272 memset(&stat, 0, sizeof (struct ls_rjt)); 1273 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1274 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1275 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1276 return ndlp->nlp_state; 1277 } 1278 1279 static uint32_t 1280 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1281 void *arg, uint32_t evt) 1282 { 1283 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1284 1285 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1286 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1287 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1288 /* software abort outstanding PLOGI */ 1289 lpfc_els_abort(vport->phba, ndlp); 1290 1291 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1292 return ndlp->nlp_state; 1293 } 1294 1295 static uint32_t 1296 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1297 void *arg, uint32_t evt) 1298 { 1299 struct lpfc_hba *phba = vport->phba; 1300 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1301 1302 /* software abort outstanding PLOGI */ 1303 lpfc_els_abort(phba, ndlp); 1304 1305 if (evt == NLP_EVT_RCV_LOGO) { 1306 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1307 } else { 1308 lpfc_issue_els_logo(vport, ndlp, 0); 1309 } 1310 1311 /* Put ndlp in npr state set plogi timer for 1 sec */ 1312 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1313 spin_lock_irq(&ndlp->lock); 1314 ndlp->nlp_flag |= NLP_DELAY_TMO; 1315 spin_unlock_irq(&ndlp->lock); 1316 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1317 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1318 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1319 1320 return ndlp->nlp_state; 1321 } 1322 1323 static uint32_t 1324 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1325 struct lpfc_nodelist *ndlp, 1326 void *arg, 1327 uint32_t evt) 1328 { 1329 struct lpfc_hba *phba = vport->phba; 1330 struct lpfc_iocbq *cmdiocb, *rspiocb; 1331 struct lpfc_dmabuf *pcmd, *prsp, *mp; 1332 uint32_t *lp; 1333 uint32_t vid, flag; 1334 struct serv_parm *sp; 1335 uint32_t ed_tov; 1336 LPFC_MBOXQ_t *mbox; 1337 int rc; 1338 u32 ulp_status; 1339 u32 did; 1340 1341 cmdiocb = (struct lpfc_iocbq *) arg; 1342 rspiocb = cmdiocb->context_un.rsp_iocb; 1343 1344 ulp_status = get_job_ulpstatus(phba, rspiocb); 1345 1346 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1347 /* Recovery from PLOGI collision logic */ 1348 return ndlp->nlp_state; 1349 } 1350 1351 if (ulp_status) 1352 goto out; 1353 1354 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1355 1356 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1357 if (!prsp) 1358 goto out; 1359 1360 lp = (uint32_t *) prsp->virt; 1361 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1362 1363 /* Some switches have FDMI servers returning 0 for WWN */ 1364 if ((ndlp->nlp_DID != FDMI_DID) && 1365 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1366 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1367 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1368 "0142 PLOGI RSP: Invalid WWN.\n"); 1369 goto out; 1370 } 1371 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1372 goto out; 1373 /* PLOGI chkparm OK */ 1374 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1375 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1376 ndlp->nlp_DID, ndlp->nlp_state, 1377 ndlp->nlp_flag, ndlp->nlp_rpi); 1378 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1379 ndlp->nlp_fcp_info |= CLASS2; 1380 else 1381 ndlp->nlp_fcp_info |= CLASS3; 1382 1383 ndlp->nlp_class_sup = 0; 1384 if (sp->cls1.classValid) 1385 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1386 if (sp->cls2.classValid) 1387 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1388 if (sp->cls3.classValid) 1389 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1390 if (sp->cls4.classValid) 1391 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1392 ndlp->nlp_maxframe = 1393 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1394 1395 if ((vport->fc_flag & FC_PT2PT) && 1396 (vport->fc_flag & FC_PT2PT_PLOGI)) { 1397 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1398 if (sp->cmn.edtovResolution) { 1399 /* E_D_TOV ticks are in nanoseconds */ 1400 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1401 } 1402 1403 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 1404 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1405 sp->cmn.valid_vendor_ver_level) { 1406 vid = be32_to_cpu(sp->un.vv.vid); 1407 flag = be32_to_cpu(sp->un.vv.flags); 1408 if ((vid == LPFC_VV_EMLX_ID) && 1409 (flag & LPFC_VV_SUPPRESS_RSP)) 1410 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 1411 } 1412 1413 /* 1414 * Use the larger EDTOV 1415 * RATOV = 2 * EDTOV for pt-to-pt 1416 */ 1417 if (ed_tov > phba->fc_edtov) 1418 phba->fc_edtov = ed_tov; 1419 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1420 1421 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1422 1423 /* Issue config_link / reg_vfi to account for updated TOV's */ 1424 if (phba->sli_rev == LPFC_SLI_REV4) { 1425 lpfc_issue_reg_vfi(vport); 1426 } else { 1427 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1428 if (!mbox) { 1429 lpfc_printf_vlog(vport, KERN_ERR, 1430 LOG_TRACE_EVENT, 1431 "0133 PLOGI: no memory " 1432 "for config_link " 1433 "Data: x%x x%x x%x x%x\n", 1434 ndlp->nlp_DID, ndlp->nlp_state, 1435 ndlp->nlp_flag, ndlp->nlp_rpi); 1436 goto out; 1437 } 1438 1439 lpfc_config_link(phba, mbox); 1440 1441 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1442 mbox->vport = vport; 1443 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1444 if (rc == MBX_NOT_FINISHED) { 1445 mempool_free(mbox, phba->mbox_mem_pool); 1446 goto out; 1447 } 1448 } 1449 } 1450 1451 lpfc_unreg_rpi(vport, ndlp); 1452 1453 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1454 if (!mbox) { 1455 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1456 "0018 PLOGI: no memory for reg_login " 1457 "Data: x%x x%x x%x x%x\n", 1458 ndlp->nlp_DID, ndlp->nlp_state, 1459 ndlp->nlp_flag, ndlp->nlp_rpi); 1460 goto out; 1461 } 1462 1463 did = get_job_els_rsp64_did(phba, cmdiocb); 1464 1465 if (lpfc_reg_rpi(phba, vport->vpi, did, 1466 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1467 switch (ndlp->nlp_DID) { 1468 case NameServer_DID: 1469 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1470 /* Fabric Controller Node needs these parameters. */ 1471 memcpy(&ndlp->fc_sparam, sp, sizeof(struct serv_parm)); 1472 break; 1473 case FDMI_DID: 1474 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1475 break; 1476 default: 1477 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1478 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1479 } 1480 1481 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1482 if (!mbox->ctx_ndlp) 1483 goto out; 1484 1485 mbox->vport = vport; 1486 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1487 != MBX_NOT_FINISHED) { 1488 lpfc_nlp_set_state(vport, ndlp, 1489 NLP_STE_REG_LOGIN_ISSUE); 1490 return ndlp->nlp_state; 1491 } 1492 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1493 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1494 /* decrement node reference count to the failed mbox 1495 * command 1496 */ 1497 lpfc_nlp_put(ndlp); 1498 mp = (struct lpfc_dmabuf *)mbox->ctx_buf; 1499 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1500 kfree(mp); 1501 mempool_free(mbox, phba->mbox_mem_pool); 1502 1503 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1504 "0134 PLOGI: cannot issue reg_login " 1505 "Data: x%x x%x x%x x%x\n", 1506 ndlp->nlp_DID, ndlp->nlp_state, 1507 ndlp->nlp_flag, ndlp->nlp_rpi); 1508 } else { 1509 mempool_free(mbox, phba->mbox_mem_pool); 1510 1511 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1512 "0135 PLOGI: cannot format reg_login " 1513 "Data: x%x x%x x%x x%x\n", 1514 ndlp->nlp_DID, ndlp->nlp_state, 1515 ndlp->nlp_flag, ndlp->nlp_rpi); 1516 } 1517 1518 1519 out: 1520 if (ndlp->nlp_DID == NameServer_DID) { 1521 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1522 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1523 "0261 Cannot Register NameServer login\n"); 1524 } 1525 1526 /* 1527 ** In case the node reference counter does not go to zero, ensure that 1528 ** the stale state for the node is not processed. 1529 */ 1530 1531 ndlp->nlp_prev_state = ndlp->nlp_state; 1532 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1533 return NLP_STE_FREED_NODE; 1534 } 1535 1536 static uint32_t 1537 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1538 void *arg, uint32_t evt) 1539 { 1540 return ndlp->nlp_state; 1541 } 1542 1543 static uint32_t 1544 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1545 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1546 { 1547 struct lpfc_hba *phba; 1548 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1549 MAILBOX_t *mb = &pmb->u.mb; 1550 uint16_t rpi; 1551 1552 phba = vport->phba; 1553 /* Release the RPI */ 1554 if (!(phba->pport->load_flag & FC_UNLOADING) && 1555 !mb->mbxStatus) { 1556 rpi = pmb->u.mb.un.varWords[0]; 1557 lpfc_release_rpi(phba, vport, ndlp, rpi); 1558 } 1559 return ndlp->nlp_state; 1560 } 1561 1562 static uint32_t 1563 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1564 void *arg, uint32_t evt) 1565 { 1566 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1567 spin_lock_irq(&ndlp->lock); 1568 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1569 spin_unlock_irq(&ndlp->lock); 1570 return ndlp->nlp_state; 1571 } else { 1572 /* software abort outstanding PLOGI */ 1573 lpfc_els_abort(vport->phba, ndlp); 1574 1575 lpfc_drop_node(vport, ndlp); 1576 return NLP_STE_FREED_NODE; 1577 } 1578 } 1579 1580 static uint32_t 1581 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1582 struct lpfc_nodelist *ndlp, 1583 void *arg, 1584 uint32_t evt) 1585 { 1586 struct lpfc_hba *phba = vport->phba; 1587 1588 /* Don't do anything that will mess up processing of the 1589 * previous RSCN. 1590 */ 1591 if (vport->fc_flag & FC_RSCN_DEFERRED) 1592 return ndlp->nlp_state; 1593 1594 /* software abort outstanding PLOGI */ 1595 lpfc_els_abort(phba, ndlp); 1596 1597 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1598 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1599 spin_lock_irq(&ndlp->lock); 1600 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1601 spin_unlock_irq(&ndlp->lock); 1602 1603 return ndlp->nlp_state; 1604 } 1605 1606 static uint32_t 1607 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1608 void *arg, uint32_t evt) 1609 { 1610 struct lpfc_hba *phba = vport->phba; 1611 struct lpfc_iocbq *cmdiocb; 1612 1613 /* software abort outstanding ADISC */ 1614 lpfc_els_abort(phba, ndlp); 1615 1616 cmdiocb = (struct lpfc_iocbq *) arg; 1617 1618 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1619 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1620 spin_lock_irq(&ndlp->lock); 1621 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1622 spin_unlock_irq(&ndlp->lock); 1623 if (vport->num_disc_nodes) 1624 lpfc_more_adisc(vport); 1625 } 1626 return ndlp->nlp_state; 1627 } 1628 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1629 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1630 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1631 1632 return ndlp->nlp_state; 1633 } 1634 1635 static uint32_t 1636 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1637 void *arg, uint32_t evt) 1638 { 1639 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1640 1641 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1642 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1643 return ndlp->nlp_state; 1644 } 1645 1646 static uint32_t 1647 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1648 void *arg, uint32_t evt) 1649 { 1650 struct lpfc_hba *phba = vport->phba; 1651 struct lpfc_iocbq *cmdiocb; 1652 1653 cmdiocb = (struct lpfc_iocbq *) arg; 1654 1655 /* software abort outstanding ADISC */ 1656 lpfc_els_abort(phba, ndlp); 1657 1658 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1659 return ndlp->nlp_state; 1660 } 1661 1662 static uint32_t 1663 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1664 struct lpfc_nodelist *ndlp, 1665 void *arg, uint32_t evt) 1666 { 1667 struct lpfc_iocbq *cmdiocb; 1668 1669 cmdiocb = (struct lpfc_iocbq *) arg; 1670 1671 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1672 return ndlp->nlp_state; 1673 } 1674 1675 static uint32_t 1676 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1677 void *arg, uint32_t evt) 1678 { 1679 struct lpfc_iocbq *cmdiocb; 1680 1681 cmdiocb = (struct lpfc_iocbq *) arg; 1682 1683 /* Treat like rcv logo */ 1684 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1685 return ndlp->nlp_state; 1686 } 1687 1688 static uint32_t 1689 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1690 struct lpfc_nodelist *ndlp, 1691 void *arg, uint32_t evt) 1692 { 1693 struct lpfc_hba *phba = vport->phba; 1694 struct lpfc_iocbq *cmdiocb, *rspiocb; 1695 ADISC *ap; 1696 int rc; 1697 u32 ulp_status; 1698 1699 cmdiocb = (struct lpfc_iocbq *) arg; 1700 rspiocb = cmdiocb->context_un.rsp_iocb; 1701 1702 ulp_status = get_job_ulpstatus(phba, rspiocb); 1703 1704 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1705 1706 if ((ulp_status) || 1707 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1708 /* 1 sec timeout */ 1709 mod_timer(&ndlp->nlp_delayfunc, 1710 jiffies + msecs_to_jiffies(1000)); 1711 spin_lock_irq(&ndlp->lock); 1712 ndlp->nlp_flag |= NLP_DELAY_TMO; 1713 spin_unlock_irq(&ndlp->lock); 1714 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1715 1716 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1717 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1718 lpfc_unreg_rpi(vport, ndlp); 1719 return ndlp->nlp_state; 1720 } 1721 1722 if (phba->sli_rev == LPFC_SLI_REV4) { 1723 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1724 if (rc) { 1725 /* Stay in state and retry. */ 1726 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1727 return ndlp->nlp_state; 1728 } 1729 } 1730 1731 if (ndlp->nlp_type & NLP_FCP_TARGET) 1732 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1733 1734 if (ndlp->nlp_type & NLP_NVME_TARGET) 1735 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1736 1737 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 1738 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1739 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1740 } else { 1741 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1742 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1743 } 1744 1745 return ndlp->nlp_state; 1746 } 1747 1748 static uint32_t 1749 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1750 void *arg, uint32_t evt) 1751 { 1752 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1753 spin_lock_irq(&ndlp->lock); 1754 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1755 spin_unlock_irq(&ndlp->lock); 1756 return ndlp->nlp_state; 1757 } else { 1758 /* software abort outstanding ADISC */ 1759 lpfc_els_abort(vport->phba, ndlp); 1760 1761 lpfc_drop_node(vport, ndlp); 1762 return NLP_STE_FREED_NODE; 1763 } 1764 } 1765 1766 static uint32_t 1767 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1768 struct lpfc_nodelist *ndlp, 1769 void *arg, 1770 uint32_t evt) 1771 { 1772 struct lpfc_hba *phba = vport->phba; 1773 1774 /* Don't do anything that will mess up processing of the 1775 * previous RSCN. 1776 */ 1777 if (vport->fc_flag & FC_RSCN_DEFERRED) 1778 return ndlp->nlp_state; 1779 1780 /* software abort outstanding ADISC */ 1781 lpfc_els_abort(phba, ndlp); 1782 1783 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1784 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1785 spin_lock_irq(&ndlp->lock); 1786 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1787 spin_unlock_irq(&ndlp->lock); 1788 lpfc_disc_set_adisc(vport, ndlp); 1789 return ndlp->nlp_state; 1790 } 1791 1792 static uint32_t 1793 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1794 struct lpfc_nodelist *ndlp, 1795 void *arg, 1796 uint32_t evt) 1797 { 1798 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1799 1800 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1801 return ndlp->nlp_state; 1802 } 1803 1804 static uint32_t 1805 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1806 struct lpfc_nodelist *ndlp, 1807 void *arg, 1808 uint32_t evt) 1809 { 1810 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1811 struct ls_rjt stat; 1812 1813 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1814 return ndlp->nlp_state; 1815 } 1816 if (vport->phba->nvmet_support) { 1817 /* NVME Target mode. Handle and respond to the PRLI and 1818 * transition to UNMAPPED provided the RPI has completed 1819 * registration. 1820 */ 1821 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 1822 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1823 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1824 } else { 1825 /* RPI registration has not completed. Reject the PRLI 1826 * to prevent an illegal state transition when the 1827 * rpi registration does complete. 1828 */ 1829 memset(&stat, 0, sizeof(struct ls_rjt)); 1830 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1831 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1832 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1833 ndlp, NULL); 1834 return ndlp->nlp_state; 1835 } 1836 } else { 1837 /* Initiator mode. */ 1838 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1839 } 1840 return ndlp->nlp_state; 1841 } 1842 1843 static uint32_t 1844 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1845 struct lpfc_nodelist *ndlp, 1846 void *arg, 1847 uint32_t evt) 1848 { 1849 struct lpfc_hba *phba = vport->phba; 1850 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1851 LPFC_MBOXQ_t *mb; 1852 LPFC_MBOXQ_t *nextmb; 1853 struct lpfc_dmabuf *mp; 1854 struct lpfc_nodelist *ns_ndlp; 1855 1856 cmdiocb = (struct lpfc_iocbq *) arg; 1857 1858 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1859 if ((mb = phba->sli.mbox_active)) { 1860 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1861 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1862 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1863 lpfc_nlp_put(ndlp); 1864 mb->ctx_ndlp = NULL; 1865 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1866 } 1867 } 1868 1869 spin_lock_irq(&phba->hbalock); 1870 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1871 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1872 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1873 mp = (struct lpfc_dmabuf *)(mb->ctx_buf); 1874 if (mp) { 1875 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 1876 kfree(mp); 1877 } 1878 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1879 lpfc_nlp_put(ndlp); 1880 list_del(&mb->list); 1881 phba->sli.mboxq_cnt--; 1882 mempool_free(mb, phba->mbox_mem_pool); 1883 } 1884 } 1885 spin_unlock_irq(&phba->hbalock); 1886 1887 /* software abort if any GID_FT is outstanding */ 1888 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 1889 ns_ndlp = lpfc_findnode_did(vport, NameServer_DID); 1890 if (ns_ndlp) 1891 lpfc_els_abort(phba, ns_ndlp); 1892 } 1893 1894 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1895 return ndlp->nlp_state; 1896 } 1897 1898 static uint32_t 1899 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1900 struct lpfc_nodelist *ndlp, 1901 void *arg, 1902 uint32_t evt) 1903 { 1904 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1905 1906 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1907 return ndlp->nlp_state; 1908 } 1909 1910 static uint32_t 1911 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1912 struct lpfc_nodelist *ndlp, 1913 void *arg, 1914 uint32_t evt) 1915 { 1916 struct lpfc_iocbq *cmdiocb; 1917 1918 cmdiocb = (struct lpfc_iocbq *) arg; 1919 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1920 return ndlp->nlp_state; 1921 } 1922 1923 static uint32_t 1924 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1925 struct lpfc_nodelist *ndlp, 1926 void *arg, 1927 uint32_t evt) 1928 { 1929 struct lpfc_hba *phba = vport->phba; 1930 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1931 MAILBOX_t *mb = &pmb->u.mb; 1932 uint32_t did = mb->un.varWords[1]; 1933 1934 if (mb->mbxStatus) { 1935 /* RegLogin failed */ 1936 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1937 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1938 "x%x\n", 1939 did, mb->mbxStatus, vport->port_state, 1940 mb->un.varRegLogin.vpi, 1941 mb->un.varRegLogin.rpi); 1942 /* 1943 * If RegLogin failed due to lack of HBA resources do not 1944 * retry discovery. 1945 */ 1946 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1947 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1948 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1949 return ndlp->nlp_state; 1950 } 1951 1952 /* Put ndlp in npr state set plogi timer for 1 sec */ 1953 mod_timer(&ndlp->nlp_delayfunc, 1954 jiffies + msecs_to_jiffies(1000 * 1)); 1955 spin_lock_irq(&ndlp->lock); 1956 ndlp->nlp_flag |= NLP_DELAY_TMO; 1957 spin_unlock_irq(&ndlp->lock); 1958 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1959 1960 lpfc_issue_els_logo(vport, ndlp, 0); 1961 return ndlp->nlp_state; 1962 } 1963 1964 /* SLI4 ports have preallocated logical rpis. */ 1965 if (phba->sli_rev < LPFC_SLI_REV4) 1966 ndlp->nlp_rpi = mb->un.varWords[0]; 1967 1968 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1969 1970 /* Only if we are not a fabric nport do we issue PRLI */ 1971 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1972 "3066 RegLogin Complete on x%x x%x x%x\n", 1973 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 1974 if (!(ndlp->nlp_type & NLP_FABRIC) && 1975 (phba->nvmet_support == 0)) { 1976 /* The driver supports FCP and NVME concurrently. If the 1977 * ndlp's nlp_fc4_type is still zero, the driver doesn't 1978 * know what PRLI to send yet. Figure that out now and 1979 * call PRLI depending on the outcome. 1980 */ 1981 if (vport->fc_flag & FC_PT2PT) { 1982 /* If we are pt2pt, there is no Fabric to determine 1983 * the FC4 type of the remote nport. So if NVME 1984 * is configured try it. 1985 */ 1986 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1987 if ((!(vport->fc_flag & FC_PT2PT_NO_NVME)) && 1988 (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH || 1989 vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1990 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1991 /* We need to update the localport also */ 1992 lpfc_nvme_update_localport(vport); 1993 } 1994 1995 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 1996 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1997 1998 } else if (ndlp->nlp_fc4_type == 0) { 1999 /* If we are only configured for FCP, the driver 2000 * should just issue PRLI for FCP. Otherwise issue 2001 * GFT_ID to determine if remote port supports NVME. 2002 */ 2003 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 2004 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0, 2005 ndlp->nlp_DID); 2006 return ndlp->nlp_state; 2007 } 2008 ndlp->nlp_fc4_type = NLP_FC4_FCP; 2009 } 2010 2011 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2012 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 2013 if (lpfc_issue_els_prli(vport, ndlp, 0)) { 2014 lpfc_issue_els_logo(vport, ndlp, 0); 2015 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2016 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2017 } 2018 } else { 2019 if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support) 2020 phba->targetport->port_id = vport->fc_myDID; 2021 2022 /* Only Fabric ports should transition. NVME target 2023 * must complete PRLI. 2024 */ 2025 if (ndlp->nlp_type & NLP_FABRIC) { 2026 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2027 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2028 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2029 } 2030 } 2031 return ndlp->nlp_state; 2032 } 2033 2034 static uint32_t 2035 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 2036 struct lpfc_nodelist *ndlp, 2037 void *arg, 2038 uint32_t evt) 2039 { 2040 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2041 spin_lock_irq(&ndlp->lock); 2042 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2043 spin_unlock_irq(&ndlp->lock); 2044 return ndlp->nlp_state; 2045 } else { 2046 lpfc_drop_node(vport, ndlp); 2047 return NLP_STE_FREED_NODE; 2048 } 2049 } 2050 2051 static uint32_t 2052 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 2053 struct lpfc_nodelist *ndlp, 2054 void *arg, 2055 uint32_t evt) 2056 { 2057 /* Don't do anything that will mess up processing of the 2058 * previous RSCN. 2059 */ 2060 if (vport->fc_flag & FC_RSCN_DEFERRED) 2061 return ndlp->nlp_state; 2062 2063 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2064 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2065 spin_lock_irq(&ndlp->lock); 2066 2067 /* If we are a target we won't immediately transition into PRLI, 2068 * so if REG_LOGIN already completed we don't need to ignore it. 2069 */ 2070 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) || 2071 !vport->phba->nvmet_support) 2072 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 2073 2074 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2075 spin_unlock_irq(&ndlp->lock); 2076 lpfc_disc_set_adisc(vport, ndlp); 2077 return ndlp->nlp_state; 2078 } 2079 2080 static uint32_t 2081 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2082 void *arg, uint32_t evt) 2083 { 2084 struct lpfc_iocbq *cmdiocb; 2085 2086 cmdiocb = (struct lpfc_iocbq *) arg; 2087 2088 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2089 return ndlp->nlp_state; 2090 } 2091 2092 static uint32_t 2093 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2094 void *arg, uint32_t evt) 2095 { 2096 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2097 2098 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2099 return ndlp->nlp_state; 2100 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2101 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2102 return ndlp->nlp_state; 2103 } 2104 2105 static uint32_t 2106 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2107 void *arg, uint32_t evt) 2108 { 2109 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2110 2111 /* Software abort outstanding PRLI before sending acc */ 2112 lpfc_els_abort(vport->phba, ndlp); 2113 2114 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2115 return ndlp->nlp_state; 2116 } 2117 2118 static uint32_t 2119 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2120 void *arg, uint32_t evt) 2121 { 2122 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2123 2124 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2125 return ndlp->nlp_state; 2126 } 2127 2128 /* This routine is envoked when we rcv a PRLO request from a nport 2129 * we are logged into. We should send back a PRLO rsp setting the 2130 * appropriate bits. 2131 * NEXT STATE = PRLI_ISSUE 2132 */ 2133 static uint32_t 2134 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2135 void *arg, uint32_t evt) 2136 { 2137 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2138 2139 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2140 return ndlp->nlp_state; 2141 } 2142 2143 static uint32_t 2144 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2145 void *arg, uint32_t evt) 2146 { 2147 struct lpfc_iocbq *cmdiocb, *rspiocb; 2148 struct lpfc_hba *phba = vport->phba; 2149 PRLI *npr; 2150 struct lpfc_nvme_prli *nvpr; 2151 void *temp_ptr; 2152 u32 ulp_status; 2153 2154 cmdiocb = (struct lpfc_iocbq *) arg; 2155 rspiocb = cmdiocb->context_un.rsp_iocb; 2156 2157 ulp_status = get_job_ulpstatus(phba, rspiocb); 2158 2159 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 2160 * format is different so NULL the two PRLI types so that the 2161 * driver correctly gets the correct context. 2162 */ 2163 npr = NULL; 2164 nvpr = NULL; 2165 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 2166 if (cmdiocb->cmd_flag & LPFC_PRLI_FCP_REQ) 2167 npr = (PRLI *) temp_ptr; 2168 else if (cmdiocb->cmd_flag & LPFC_PRLI_NVME_REQ) 2169 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 2170 2171 if (ulp_status) { 2172 if ((vport->port_type == LPFC_NPIV_PORT) && 2173 vport->cfg_restrict_login) { 2174 goto out; 2175 } 2176 2177 /* Adjust the nlp_type accordingly if the PRLI failed */ 2178 if (npr) 2179 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2180 if (nvpr) 2181 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 2182 2183 /* We can't set the DSM state till BOTH PRLIs complete */ 2184 goto out_err; 2185 } 2186 2187 if (npr && (npr->acceptRspCode == PRLI_REQ_EXECUTED) && 2188 (npr->prliType == PRLI_FCP_TYPE)) { 2189 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2190 "6028 FCP NPR PRLI Cmpl Init %d Target %d\n", 2191 npr->initiatorFunc, 2192 npr->targetFunc); 2193 if (npr->initiatorFunc) 2194 ndlp->nlp_type |= NLP_FCP_INITIATOR; 2195 if (npr->targetFunc) { 2196 ndlp->nlp_type |= NLP_FCP_TARGET; 2197 if (npr->writeXferRdyDis) 2198 ndlp->nlp_flag |= NLP_FIRSTBURST; 2199 } 2200 if (npr->Retry) 2201 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 2202 2203 } else if (nvpr && 2204 (bf_get_be32(prli_acc_rsp_code, nvpr) == 2205 PRLI_REQ_EXECUTED) && 2206 (bf_get_be32(prli_type_code, nvpr) == 2207 PRLI_NVME_TYPE)) { 2208 2209 /* Complete setting up the remote ndlp personality. */ 2210 if (bf_get_be32(prli_init, nvpr)) 2211 ndlp->nlp_type |= NLP_NVME_INITIATOR; 2212 2213 if (phba->nsler && bf_get_be32(prli_nsler, nvpr) && 2214 bf_get_be32(prli_conf, nvpr)) 2215 2216 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 2217 else 2218 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 2219 2220 /* Target driver cannot solicit NVME FB. */ 2221 if (bf_get_be32(prli_tgt, nvpr)) { 2222 /* Complete the nvme target roles. The transport 2223 * needs to know if the rport is capable of 2224 * discovery in addition to its role. 2225 */ 2226 ndlp->nlp_type |= NLP_NVME_TARGET; 2227 if (bf_get_be32(prli_disc, nvpr)) 2228 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 2229 2230 /* 2231 * If prli_fba is set, the Target supports FirstBurst. 2232 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 2233 * otherwise it defines the actual size supported by 2234 * the NVME Target. 2235 */ 2236 if ((bf_get_be32(prli_fba, nvpr) == 1) && 2237 (phba->cfg_nvme_enable_fb) && 2238 (!phba->nvmet_support)) { 2239 /* Both sides support FB. The target's first 2240 * burst size is a 512 byte encoded value. 2241 */ 2242 ndlp->nlp_flag |= NLP_FIRSTBURST; 2243 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2244 nvpr); 2245 2246 /* Expressed in units of 512 bytes */ 2247 if (ndlp->nvme_fb_size) 2248 ndlp->nvme_fb_size <<= 2249 LPFC_NVME_FB_SHIFT; 2250 else 2251 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2252 } 2253 } 2254 2255 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2256 "6029 NVME PRLI Cmpl w1 x%08x " 2257 "w4 x%08x w5 x%08x flag x%x, " 2258 "fcp_info x%x nlp_type x%x\n", 2259 be32_to_cpu(nvpr->word1), 2260 be32_to_cpu(nvpr->word4), 2261 be32_to_cpu(nvpr->word5), 2262 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2263 ndlp->nlp_type); 2264 } 2265 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2266 (vport->port_type == LPFC_NPIV_PORT) && 2267 vport->cfg_restrict_login) { 2268 out: 2269 spin_lock_irq(&ndlp->lock); 2270 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 2271 spin_unlock_irq(&ndlp->lock); 2272 lpfc_issue_els_logo(vport, ndlp, 0); 2273 2274 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2275 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2276 return ndlp->nlp_state; 2277 } 2278 2279 out_err: 2280 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2281 * are complete. 2282 */ 2283 if (ndlp->fc4_prli_sent == 0) { 2284 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2285 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2286 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2287 else if (ndlp->nlp_type & 2288 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2289 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2290 } else 2291 lpfc_printf_vlog(vport, 2292 KERN_INFO, LOG_ELS, 2293 "3067 PRLI's still outstanding " 2294 "on x%06x - count %d, Pend Node Mode " 2295 "transition...\n", 2296 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2297 2298 return ndlp->nlp_state; 2299 } 2300 2301 /*! lpfc_device_rm_prli_issue 2302 * 2303 * \pre 2304 * \post 2305 * \param phba 2306 * \param ndlp 2307 * \param arg 2308 * \param evt 2309 * \return uint32_t 2310 * 2311 * \b Description: 2312 * This routine is envoked when we a request to remove a nport we are in the 2313 * process of PRLIing. We should software abort outstanding prli, unreg 2314 * login, send a logout. We will change node state to UNUSED_NODE, put it 2315 * on plogi list so it can be freed when LOGO completes. 2316 * 2317 */ 2318 2319 static uint32_t 2320 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2321 void *arg, uint32_t evt) 2322 { 2323 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2324 spin_lock_irq(&ndlp->lock); 2325 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2326 spin_unlock_irq(&ndlp->lock); 2327 return ndlp->nlp_state; 2328 } else { 2329 /* software abort outstanding PLOGI */ 2330 lpfc_els_abort(vport->phba, ndlp); 2331 2332 lpfc_drop_node(vport, ndlp); 2333 return NLP_STE_FREED_NODE; 2334 } 2335 } 2336 2337 2338 /*! lpfc_device_recov_prli_issue 2339 * 2340 * \pre 2341 * \post 2342 * \param phba 2343 * \param ndlp 2344 * \param arg 2345 * \param evt 2346 * \return uint32_t 2347 * 2348 * \b Description: 2349 * The routine is envoked when the state of a device is unknown, like 2350 * during a link down. We should remove the nodelist entry from the 2351 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2352 * outstanding PRLI command, then free the node entry. 2353 */ 2354 static uint32_t 2355 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2356 struct lpfc_nodelist *ndlp, 2357 void *arg, 2358 uint32_t evt) 2359 { 2360 struct lpfc_hba *phba = vport->phba; 2361 2362 /* Don't do anything that will mess up processing of the 2363 * previous RSCN. 2364 */ 2365 if (vport->fc_flag & FC_RSCN_DEFERRED) 2366 return ndlp->nlp_state; 2367 2368 /* software abort outstanding PRLI */ 2369 lpfc_els_abort(phba, ndlp); 2370 2371 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2372 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2373 spin_lock_irq(&ndlp->lock); 2374 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2375 spin_unlock_irq(&ndlp->lock); 2376 lpfc_disc_set_adisc(vport, ndlp); 2377 return ndlp->nlp_state; 2378 } 2379 2380 static uint32_t 2381 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2382 void *arg, uint32_t evt) 2383 { 2384 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2385 struct ls_rjt stat; 2386 2387 memset(&stat, 0, sizeof(struct ls_rjt)); 2388 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2389 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2390 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2391 return ndlp->nlp_state; 2392 } 2393 2394 static uint32_t 2395 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2396 void *arg, uint32_t evt) 2397 { 2398 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2399 struct ls_rjt stat; 2400 2401 memset(&stat, 0, sizeof(struct ls_rjt)); 2402 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2403 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2404 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2405 return ndlp->nlp_state; 2406 } 2407 2408 static uint32_t 2409 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2410 void *arg, uint32_t evt) 2411 { 2412 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2413 2414 spin_lock_irq(&ndlp->lock); 2415 ndlp->nlp_flag |= NLP_LOGO_ACC; 2416 spin_unlock_irq(&ndlp->lock); 2417 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2418 return ndlp->nlp_state; 2419 } 2420 2421 static uint32_t 2422 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2423 void *arg, uint32_t evt) 2424 { 2425 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2426 struct ls_rjt stat; 2427 2428 memset(&stat, 0, sizeof(struct ls_rjt)); 2429 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2430 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2431 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2432 return ndlp->nlp_state; 2433 } 2434 2435 static uint32_t 2436 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2437 void *arg, uint32_t evt) 2438 { 2439 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2440 struct ls_rjt stat; 2441 2442 memset(&stat, 0, sizeof(struct ls_rjt)); 2443 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2444 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2445 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2446 return ndlp->nlp_state; 2447 } 2448 2449 static uint32_t 2450 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2451 void *arg, uint32_t evt) 2452 { 2453 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2454 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2455 spin_lock_irq(&ndlp->lock); 2456 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2457 spin_unlock_irq(&ndlp->lock); 2458 lpfc_disc_set_adisc(vport, ndlp); 2459 return ndlp->nlp_state; 2460 } 2461 2462 static uint32_t 2463 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2464 void *arg, uint32_t evt) 2465 { 2466 /* 2467 * DevLoss has timed out and is calling for Device Remove. 2468 * In this case, abort the LOGO and cleanup the ndlp 2469 */ 2470 2471 lpfc_unreg_rpi(vport, ndlp); 2472 /* software abort outstanding PLOGI */ 2473 lpfc_els_abort(vport->phba, ndlp); 2474 lpfc_drop_node(vport, ndlp); 2475 return NLP_STE_FREED_NODE; 2476 } 2477 2478 static uint32_t 2479 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2480 struct lpfc_nodelist *ndlp, 2481 void *arg, uint32_t evt) 2482 { 2483 /* 2484 * Device Recovery events have no meaning for a node with a LOGO 2485 * outstanding. The LOGO has to complete first and handle the 2486 * node from that point. 2487 */ 2488 return ndlp->nlp_state; 2489 } 2490 2491 static uint32_t 2492 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2493 void *arg, uint32_t evt) 2494 { 2495 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2496 2497 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2498 return ndlp->nlp_state; 2499 } 2500 2501 static uint32_t 2502 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2503 void *arg, uint32_t evt) 2504 { 2505 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2506 2507 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2508 return ndlp->nlp_state; 2509 2510 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2511 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2512 return ndlp->nlp_state; 2513 } 2514 2515 static uint32_t 2516 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2517 void *arg, uint32_t evt) 2518 { 2519 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2520 2521 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2522 return ndlp->nlp_state; 2523 } 2524 2525 static uint32_t 2526 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2527 void *arg, uint32_t evt) 2528 { 2529 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2530 2531 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2532 return ndlp->nlp_state; 2533 } 2534 2535 static uint32_t 2536 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2537 void *arg, uint32_t evt) 2538 { 2539 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2540 2541 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2542 return ndlp->nlp_state; 2543 } 2544 2545 static uint32_t 2546 lpfc_device_rm_unmap_node(struct lpfc_vport *vport, 2547 struct lpfc_nodelist *ndlp, 2548 void *arg, 2549 uint32_t evt) 2550 { 2551 lpfc_drop_node(vport, ndlp); 2552 return NLP_STE_FREED_NODE; 2553 } 2554 2555 static uint32_t 2556 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2557 struct lpfc_nodelist *ndlp, 2558 void *arg, 2559 uint32_t evt) 2560 { 2561 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2562 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2563 spin_lock_irq(&ndlp->lock); 2564 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2565 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2566 spin_unlock_irq(&ndlp->lock); 2567 lpfc_disc_set_adisc(vport, ndlp); 2568 2569 return ndlp->nlp_state; 2570 } 2571 2572 static uint32_t 2573 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2574 void *arg, uint32_t evt) 2575 { 2576 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2577 2578 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2579 return ndlp->nlp_state; 2580 } 2581 2582 static uint32_t 2583 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2584 void *arg, uint32_t evt) 2585 { 2586 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2587 2588 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2589 return ndlp->nlp_state; 2590 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2591 return ndlp->nlp_state; 2592 } 2593 2594 static uint32_t 2595 lpfc_rcv_logo_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 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2601 return ndlp->nlp_state; 2602 } 2603 2604 static uint32_t 2605 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2606 struct lpfc_nodelist *ndlp, 2607 void *arg, uint32_t evt) 2608 { 2609 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2610 2611 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2612 return ndlp->nlp_state; 2613 } 2614 2615 static uint32_t 2616 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2617 void *arg, uint32_t evt) 2618 { 2619 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2620 2621 /* flush the target */ 2622 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2623 2624 /* Treat like rcv logo */ 2625 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2626 return ndlp->nlp_state; 2627 } 2628 2629 static uint32_t 2630 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2631 struct lpfc_nodelist *ndlp, 2632 void *arg, 2633 uint32_t evt) 2634 { 2635 lpfc_disc_set_adisc(vport, ndlp); 2636 2637 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2638 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2639 spin_lock_irq(&ndlp->lock); 2640 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2641 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2642 spin_unlock_irq(&ndlp->lock); 2643 return ndlp->nlp_state; 2644 } 2645 2646 static uint32_t 2647 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2648 void *arg, uint32_t evt) 2649 { 2650 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2651 2652 /* Ignore PLOGI if we have an outstanding LOGO */ 2653 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2654 return ndlp->nlp_state; 2655 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2656 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2657 spin_lock_irq(&ndlp->lock); 2658 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2659 spin_unlock_irq(&ndlp->lock); 2660 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2661 /* send PLOGI immediately, move to PLOGI issue state */ 2662 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2663 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2664 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2665 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2666 } 2667 } 2668 return ndlp->nlp_state; 2669 } 2670 2671 static uint32_t 2672 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2673 void *arg, uint32_t evt) 2674 { 2675 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2676 struct ls_rjt stat; 2677 2678 memset(&stat, 0, sizeof (struct ls_rjt)); 2679 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2680 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2681 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2682 2683 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2684 /* 2685 * ADISC nodes will be handled in regular discovery path after 2686 * receiving response from NS. 2687 * 2688 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2689 */ 2690 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2691 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2692 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2693 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2694 } 2695 } 2696 return ndlp->nlp_state; 2697 } 2698 2699 static uint32_t 2700 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2701 void *arg, uint32_t evt) 2702 { 2703 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2704 2705 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2706 return ndlp->nlp_state; 2707 } 2708 2709 static uint32_t 2710 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2711 void *arg, uint32_t evt) 2712 { 2713 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2714 2715 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2716 /* 2717 * Do not start discovery if discovery is about to start 2718 * or discovery in progress for this node. Starting discovery 2719 * here will affect the counting of discovery threads. 2720 */ 2721 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2722 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2723 /* 2724 * ADISC nodes will be handled in regular discovery path after 2725 * receiving response from NS. 2726 * 2727 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2728 */ 2729 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2730 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2731 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2732 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2733 } 2734 } 2735 return ndlp->nlp_state; 2736 } 2737 2738 static uint32_t 2739 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2740 void *arg, uint32_t evt) 2741 { 2742 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2743 2744 spin_lock_irq(&ndlp->lock); 2745 ndlp->nlp_flag |= NLP_LOGO_ACC; 2746 spin_unlock_irq(&ndlp->lock); 2747 2748 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2749 2750 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2751 mod_timer(&ndlp->nlp_delayfunc, 2752 jiffies + msecs_to_jiffies(1000 * 1)); 2753 spin_lock_irq(&ndlp->lock); 2754 ndlp->nlp_flag |= NLP_DELAY_TMO; 2755 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2756 spin_unlock_irq(&ndlp->lock); 2757 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2758 } else { 2759 spin_lock_irq(&ndlp->lock); 2760 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2761 spin_unlock_irq(&ndlp->lock); 2762 } 2763 return ndlp->nlp_state; 2764 } 2765 2766 static uint32_t 2767 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2768 void *arg, uint32_t evt) 2769 { 2770 struct lpfc_hba *phba = vport->phba; 2771 struct lpfc_iocbq *cmdiocb, *rspiocb; 2772 u32 ulp_status; 2773 2774 cmdiocb = (struct lpfc_iocbq *) arg; 2775 rspiocb = cmdiocb->context_un.rsp_iocb; 2776 2777 ulp_status = get_job_ulpstatus(phba, rspiocb); 2778 2779 if (ulp_status) 2780 return NLP_STE_FREED_NODE; 2781 2782 return ndlp->nlp_state; 2783 } 2784 2785 static uint32_t 2786 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2787 void *arg, uint32_t evt) 2788 { 2789 struct lpfc_hba *phba = vport->phba; 2790 struct lpfc_iocbq *cmdiocb, *rspiocb; 2791 u32 ulp_status; 2792 2793 cmdiocb = (struct lpfc_iocbq *) arg; 2794 rspiocb = cmdiocb->context_un.rsp_iocb; 2795 2796 ulp_status = get_job_ulpstatus(phba, rspiocb); 2797 2798 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2799 lpfc_drop_node(vport, ndlp); 2800 return NLP_STE_FREED_NODE; 2801 } 2802 return ndlp->nlp_state; 2803 } 2804 2805 static uint32_t 2806 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2807 void *arg, uint32_t evt) 2808 { 2809 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2810 2811 /* For the fabric port just clear the fc flags. */ 2812 if (ndlp->nlp_DID == Fabric_DID) { 2813 spin_lock_irq(shost->host_lock); 2814 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2815 spin_unlock_irq(shost->host_lock); 2816 } 2817 lpfc_unreg_rpi(vport, ndlp); 2818 return ndlp->nlp_state; 2819 } 2820 2821 static uint32_t 2822 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2823 void *arg, uint32_t evt) 2824 { 2825 struct lpfc_hba *phba = vport->phba; 2826 struct lpfc_iocbq *cmdiocb, *rspiocb; 2827 u32 ulp_status; 2828 2829 cmdiocb = (struct lpfc_iocbq *) arg; 2830 rspiocb = cmdiocb->context_un.rsp_iocb; 2831 2832 ulp_status = get_job_ulpstatus(phba, rspiocb); 2833 2834 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2835 lpfc_drop_node(vport, ndlp); 2836 return NLP_STE_FREED_NODE; 2837 } 2838 return ndlp->nlp_state; 2839 } 2840 2841 static uint32_t 2842 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2843 struct lpfc_nodelist *ndlp, 2844 void *arg, uint32_t evt) 2845 { 2846 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2847 MAILBOX_t *mb = &pmb->u.mb; 2848 2849 if (!mb->mbxStatus) { 2850 /* SLI4 ports have preallocated logical rpis. */ 2851 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2852 ndlp->nlp_rpi = mb->un.varWords[0]; 2853 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2854 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 2855 lpfc_unreg_rpi(vport, ndlp); 2856 } 2857 } else { 2858 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2859 lpfc_drop_node(vport, ndlp); 2860 return NLP_STE_FREED_NODE; 2861 } 2862 } 2863 return ndlp->nlp_state; 2864 } 2865 2866 static uint32_t 2867 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2868 void *arg, uint32_t evt) 2869 { 2870 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2871 spin_lock_irq(&ndlp->lock); 2872 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2873 spin_unlock_irq(&ndlp->lock); 2874 return ndlp->nlp_state; 2875 } 2876 lpfc_drop_node(vport, ndlp); 2877 return NLP_STE_FREED_NODE; 2878 } 2879 2880 static uint32_t 2881 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2882 void *arg, uint32_t evt) 2883 { 2884 /* Don't do anything that will mess up processing of the 2885 * previous RSCN. 2886 */ 2887 if (vport->fc_flag & FC_RSCN_DEFERRED) 2888 return ndlp->nlp_state; 2889 2890 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2891 spin_lock_irq(&ndlp->lock); 2892 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2893 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2894 spin_unlock_irq(&ndlp->lock); 2895 return ndlp->nlp_state; 2896 } 2897 2898 2899 /* This next section defines the NPort Discovery State Machine */ 2900 2901 /* There are 4 different double linked lists nodelist entries can reside on. 2902 * The plogi list and adisc list are used when Link Up discovery or RSCN 2903 * processing is needed. Each list holds the nodes that we will send PLOGI 2904 * or ADISC on. These lists will keep track of what nodes will be effected 2905 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2906 * The unmapped_list will contain all nodes that we have successfully logged 2907 * into at the Fibre Channel level. The mapped_list will contain all nodes 2908 * that are mapped FCP targets. 2909 */ 2910 /* 2911 * The bind list is a list of undiscovered (potentially non-existent) nodes 2912 * that we have saved binding information on. This information is used when 2913 * nodes transition from the unmapped to the mapped list. 2914 */ 2915 /* For UNUSED_NODE state, the node has just been allocated . 2916 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2917 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2918 * and put on the unmapped list. For ADISC processing, the node is taken off 2919 * the ADISC list and placed on either the mapped or unmapped list (depending 2920 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2921 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2922 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2923 * node, the node is taken off the unmapped list. The binding list is checked 2924 * for a valid binding, or a binding is automatically assigned. If binding 2925 * assignment is unsuccessful, the node is left on the unmapped list. If 2926 * binding assignment is successful, the associated binding list entry (if 2927 * any) is removed, and the node is placed on the mapped list. 2928 */ 2929 /* 2930 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2931 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2932 * expire, all effected nodes will receive a DEVICE_RM event. 2933 */ 2934 /* 2935 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2936 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2937 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2938 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2939 * we will first process the ADISC list. 32 entries are processed initially and 2940 * ADISC is initited for each one. Completions / Events for each node are 2941 * funnelled thru the state machine. As each node finishes ADISC processing, it 2942 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2943 * waiting, and the ADISC list count is identically 0, then we are done. For 2944 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2945 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2946 * list. 32 entries are processed initially and PLOGI is initited for each one. 2947 * Completions / Events for each node are funnelled thru the state machine. As 2948 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2949 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2950 * indentically 0, then we are done. We have now completed discovery / RSCN 2951 * handling. Upon completion, ALL nodes should be on either the mapped or 2952 * unmapped lists. 2953 */ 2954 2955 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2956 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2957 /* Action routine Event Current State */ 2958 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2959 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2960 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2961 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2962 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2963 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2964 lpfc_disc_illegal, /* CMPL_PLOGI */ 2965 lpfc_disc_illegal, /* CMPL_PRLI */ 2966 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2967 lpfc_disc_illegal, /* CMPL_ADISC */ 2968 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2969 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2970 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2971 2972 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2973 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2974 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2975 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2976 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2977 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2978 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2979 lpfc_disc_illegal, /* CMPL_PRLI */ 2980 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2981 lpfc_disc_illegal, /* CMPL_ADISC */ 2982 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2983 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2984 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2985 2986 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2987 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 2988 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 2989 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 2990 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 2991 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 2992 lpfc_disc_illegal, /* CMPL_PLOGI */ 2993 lpfc_disc_illegal, /* CMPL_PRLI */ 2994 lpfc_disc_illegal, /* CMPL_LOGO */ 2995 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 2996 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2997 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 2998 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 2999 3000 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 3001 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 3002 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 3003 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 3004 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 3005 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 3006 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3007 lpfc_disc_illegal, /* CMPL_PRLI */ 3008 lpfc_disc_illegal, /* CMPL_LOGO */ 3009 lpfc_disc_illegal, /* CMPL_ADISC */ 3010 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 3011 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 3012 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 3013 3014 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 3015 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 3016 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 3017 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 3018 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 3019 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 3020 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3021 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 3022 lpfc_disc_illegal, /* CMPL_LOGO */ 3023 lpfc_disc_illegal, /* CMPL_ADISC */ 3024 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3025 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 3026 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 3027 3028 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 3029 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 3030 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 3031 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 3032 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 3033 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 3034 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3035 lpfc_disc_illegal, /* CMPL_PRLI */ 3036 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 3037 lpfc_disc_illegal, /* CMPL_ADISC */ 3038 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3039 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 3040 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 3041 3042 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 3043 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 3044 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 3045 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 3046 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 3047 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 3048 lpfc_disc_illegal, /* CMPL_PLOGI */ 3049 lpfc_disc_illegal, /* CMPL_PRLI */ 3050 lpfc_disc_illegal, /* CMPL_LOGO */ 3051 lpfc_disc_illegal, /* CMPL_ADISC */ 3052 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3053 lpfc_device_rm_unmap_node, /* DEVICE_RM */ 3054 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 3055 3056 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 3057 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 3058 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 3059 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 3060 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 3061 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 3062 lpfc_disc_illegal, /* CMPL_PLOGI */ 3063 lpfc_disc_illegal, /* CMPL_PRLI */ 3064 lpfc_disc_illegal, /* CMPL_LOGO */ 3065 lpfc_disc_illegal, /* CMPL_ADISC */ 3066 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3067 lpfc_disc_illegal, /* DEVICE_RM */ 3068 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 3069 3070 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 3071 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 3072 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 3073 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 3074 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 3075 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 3076 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 3077 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 3078 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 3079 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 3080 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 3081 lpfc_device_rm_npr_node, /* DEVICE_RM */ 3082 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 3083 }; 3084 3085 int 3086 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3087 void *arg, uint32_t evt) 3088 { 3089 uint32_t cur_state, rc; 3090 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 3091 uint32_t); 3092 uint32_t got_ndlp = 0; 3093 uint32_t data1; 3094 3095 if (lpfc_nlp_get(ndlp)) 3096 got_ndlp = 1; 3097 3098 cur_state = ndlp->nlp_state; 3099 3100 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3101 ((uint32_t)ndlp->nlp_type)); 3102 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 3103 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3104 "0211 DSM in event x%x on NPort x%x in " 3105 "state %d rpi x%x Data: x%x x%x\n", 3106 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, 3107 ndlp->nlp_flag, data1); 3108 3109 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3110 "DSM in: evt:%d ste:%d did:x%x", 3111 evt, cur_state, ndlp->nlp_DID); 3112 3113 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 3114 rc = (func) (vport, ndlp, arg, evt); 3115 3116 /* DSM out state <rc> on NPort <nlp_DID> */ 3117 if (got_ndlp) { 3118 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3119 ((uint32_t)ndlp->nlp_type)); 3120 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3121 "0212 DSM out state %d on NPort x%x " 3122 "rpi x%x Data: x%x x%x\n", 3123 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag, 3124 data1); 3125 3126 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3127 "DSM out: ste:%d did:x%x flg:x%x", 3128 rc, ndlp->nlp_DID, ndlp->nlp_flag); 3129 /* Decrement the ndlp reference count held for this function */ 3130 lpfc_nlp_put(ndlp); 3131 } else { 3132 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3133 "0213 DSM out state %d on NPort free\n", rc); 3134 3135 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3136 "DSM out: ste:%d did:x%x flg:x%x", 3137 rc, 0, 0); 3138 } 3139 3140 return rc; 3141 } 3142