1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/pci.h> 26 #include <linux/slab.h> 27 #include <linux/interrupt.h> 28 29 #include <scsi/scsi.h> 30 #include <scsi/scsi_device.h> 31 #include <scsi/scsi_host.h> 32 #include <scsi/scsi_transport_fc.h> 33 #include <scsi/fc/fc_fs.h> 34 35 #include "lpfc_hw4.h" 36 #include "lpfc_hw.h" 37 #include "lpfc_sli.h" 38 #include "lpfc_sli4.h" 39 #include "lpfc_nl.h" 40 #include "lpfc_disc.h" 41 #include "lpfc.h" 42 #include "lpfc_scsi.h" 43 #include "lpfc_nvme.h" 44 #include "lpfc_logmsg.h" 45 #include "lpfc_crtn.h" 46 #include "lpfc_vport.h" 47 #include "lpfc_debugfs.h" 48 49 50 /* Called to verify a rcv'ed ADISC was intended for us. */ 51 static int 52 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 53 struct lpfc_name *nn, struct lpfc_name *pn) 54 { 55 /* First, we MUST have a RPI registered */ 56 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) 57 return 0; 58 59 /* Compare the ADISC rsp WWNN / WWPN matches our internal node 60 * table entry for that node. 61 */ 62 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) 63 return 0; 64 65 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) 66 return 0; 67 68 /* we match, return success */ 69 return 1; 70 } 71 72 int 73 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 74 struct serv_parm *sp, uint32_t class, int flogi) 75 { 76 volatile struct serv_parm *hsp = &vport->fc_sparam; 77 uint16_t hsp_value, ssp_value = 0; 78 79 /* 80 * The receive data field size and buffer-to-buffer receive data field 81 * size entries are 16 bits but are represented as two 8-bit fields in 82 * the driver data structure to account for rsvd bits and other control 83 * bits. Reconstruct and compare the fields as a 16-bit values before 84 * correcting the byte values. 85 */ 86 if (sp->cls1.classValid) { 87 if (!flogi) { 88 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) | 89 hsp->cls1.rcvDataSizeLsb); 90 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) | 91 sp->cls1.rcvDataSizeLsb); 92 if (!ssp_value) 93 goto bad_service_param; 94 if (ssp_value > hsp_value) { 95 sp->cls1.rcvDataSizeLsb = 96 hsp->cls1.rcvDataSizeLsb; 97 sp->cls1.rcvDataSizeMsb = 98 hsp->cls1.rcvDataSizeMsb; 99 } 100 } 101 } else if (class == CLASS1) 102 goto bad_service_param; 103 if (sp->cls2.classValid) { 104 if (!flogi) { 105 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) | 106 hsp->cls2.rcvDataSizeLsb); 107 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) | 108 sp->cls2.rcvDataSizeLsb); 109 if (!ssp_value) 110 goto bad_service_param; 111 if (ssp_value > hsp_value) { 112 sp->cls2.rcvDataSizeLsb = 113 hsp->cls2.rcvDataSizeLsb; 114 sp->cls2.rcvDataSizeMsb = 115 hsp->cls2.rcvDataSizeMsb; 116 } 117 } 118 } else if (class == CLASS2) 119 goto bad_service_param; 120 if (sp->cls3.classValid) { 121 if (!flogi) { 122 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) | 123 hsp->cls3.rcvDataSizeLsb); 124 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) | 125 sp->cls3.rcvDataSizeLsb); 126 if (!ssp_value) 127 goto bad_service_param; 128 if (ssp_value > hsp_value) { 129 sp->cls3.rcvDataSizeLsb = 130 hsp->cls3.rcvDataSizeLsb; 131 sp->cls3.rcvDataSizeMsb = 132 hsp->cls3.rcvDataSizeMsb; 133 } 134 } 135 } else if (class == CLASS3) 136 goto bad_service_param; 137 138 /* 139 * Preserve the upper four bits of the MSB from the PLOGI response. 140 * These bits contain the Buffer-to-Buffer State Change Number 141 * from the target and need to be passed to the FW. 142 */ 143 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; 144 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; 145 if (ssp_value > hsp_value) { 146 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; 147 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | 148 (hsp->cmn.bbRcvSizeMsb & 0x0F); 149 } 150 151 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); 152 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); 153 return 1; 154 bad_service_param: 155 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 156 "0207 Device %x " 157 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 158 "invalid service parameters. Ignoring device.\n", 159 ndlp->nlp_DID, 160 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 161 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 162 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 163 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 164 return 0; 165 } 166 167 static void * 168 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 169 struct lpfc_iocbq *rspiocb) 170 { 171 struct lpfc_dmabuf *pcmd, *prsp; 172 uint32_t *lp; 173 void *ptr = NULL; 174 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 175 176 pcmd = cmdiocb->cmd_dmabuf; 177 178 /* For lpfc_els_abort, cmd_dmabuf could be zero'ed to delay 179 * freeing associated memory till after ABTS completes. 180 */ 181 if (pcmd) { 182 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, 183 list); 184 if (prsp) { 185 lp = (uint32_t *) prsp->virt; 186 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); 187 } 188 } else { 189 /* Force ulp_status error since we are returning NULL ptr */ 190 if (!(ulp_status)) { 191 if (phba->sli_rev == LPFC_SLI_REV4) { 192 bf_set(lpfc_wcqe_c_status, &rspiocb->wcqe_cmpl, 193 IOSTAT_LOCAL_REJECT); 194 rspiocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED; 195 } else { 196 rspiocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; 197 rspiocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED; 198 } 199 } 200 ptr = NULL; 201 } 202 return ptr; 203 } 204 205 206 207 /* 208 * Free resources / clean up outstanding I/Os 209 * associated with a LPFC_NODELIST entry. This 210 * routine effectively results in a "software abort". 211 */ 212 void 213 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 214 { 215 LIST_HEAD(abort_list); 216 struct lpfc_sli_ring *pring; 217 struct lpfc_iocbq *iocb, *next_iocb; 218 219 pring = lpfc_phba_elsring(phba); 220 221 /* In case of error recovery path, we might have a NULL pring here */ 222 if (unlikely(!pring)) 223 return; 224 225 /* Abort outstanding I/O on NPort <nlp_DID> */ 226 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, 227 "2819 Abort outstanding I/O on NPort x%x " 228 "Data: x%x x%x x%x\n", 229 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 230 ndlp->nlp_rpi); 231 /* Clean up all fabric IOs first.*/ 232 lpfc_fabric_abort_nport(ndlp); 233 234 /* 235 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list 236 * of all ELS IOs that need an ABTS. The IOs need to stay on the 237 * txcmplq so that the abort operation completes them successfully. 238 */ 239 spin_lock_irq(&phba->hbalock); 240 if (phba->sli_rev == LPFC_SLI_REV4) 241 spin_lock(&pring->ring_lock); 242 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 243 /* Add to abort_list on on NDLP match. */ 244 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 245 list_add_tail(&iocb->dlist, &abort_list); 246 } 247 if (phba->sli_rev == LPFC_SLI_REV4) 248 spin_unlock(&pring->ring_lock); 249 spin_unlock_irq(&phba->hbalock); 250 251 /* Abort the targeted IOs and remove them from the abort list. */ 252 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) { 253 spin_lock_irq(&phba->hbalock); 254 list_del_init(&iocb->dlist); 255 lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL); 256 spin_unlock_irq(&phba->hbalock); 257 } 258 /* Make sure HBA is alive */ 259 lpfc_issue_hb_tmo(phba); 260 261 INIT_LIST_HEAD(&abort_list); 262 263 /* Now process the txq */ 264 spin_lock_irq(&phba->hbalock); 265 if (phba->sli_rev == LPFC_SLI_REV4) 266 spin_lock(&pring->ring_lock); 267 268 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 269 /* Check to see if iocb matches the nport we are looking for */ 270 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 271 list_del_init(&iocb->list); 272 list_add_tail(&iocb->list, &abort_list); 273 } 274 } 275 276 if (phba->sli_rev == LPFC_SLI_REV4) 277 spin_unlock(&pring->ring_lock); 278 spin_unlock_irq(&phba->hbalock); 279 280 /* Cancel all the IOCBs from the completions list */ 281 lpfc_sli_cancel_iocbs(phba, &abort_list, 282 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 283 284 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 285 } 286 287 /* lpfc_defer_plogi_acc - Issue PLOGI ACC after reg_login completes 288 * @phba: pointer to lpfc hba data structure. 289 * @login_mbox: pointer to REG_RPI mailbox object 290 * 291 * The ACC for a rcv'ed PLOGI is deferred until AFTER the REG_RPI completes 292 */ 293 static void 294 lpfc_defer_plogi_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *login_mbox) 295 { 296 struct lpfc_iocbq *save_iocb; 297 struct lpfc_nodelist *ndlp; 298 MAILBOX_t *mb = &login_mbox->u.mb; 299 300 int rc; 301 302 ndlp = login_mbox->ctx_ndlp; 303 save_iocb = login_mbox->context3; 304 305 if (mb->mbxStatus == MBX_SUCCESS) { 306 /* Now that REG_RPI completed successfully, 307 * we can now proceed with sending the PLOGI ACC. 308 */ 309 rc = lpfc_els_rsp_acc(login_mbox->vport, ELS_CMD_PLOGI, 310 save_iocb, ndlp, NULL); 311 if (rc) { 312 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 313 "4576 PLOGI ACC fails pt2pt discovery: " 314 "DID %x Data: %x\n", ndlp->nlp_DID, rc); 315 } 316 } 317 318 /* Now process the REG_RPI cmpl */ 319 lpfc_mbx_cmpl_reg_login(phba, login_mbox); 320 ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN; 321 kfree(save_iocb); 322 } 323 324 static int 325 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 326 struct lpfc_iocbq *cmdiocb) 327 { 328 struct lpfc_hba *phba = vport->phba; 329 struct lpfc_dmabuf *pcmd; 330 uint64_t nlp_portwwn = 0; 331 uint32_t *lp; 332 union lpfc_wqe128 *wqe; 333 IOCB_t *icmd; 334 struct serv_parm *sp; 335 uint32_t ed_tov; 336 LPFC_MBOXQ_t *link_mbox; 337 LPFC_MBOXQ_t *login_mbox; 338 struct lpfc_iocbq *save_iocb; 339 struct ls_rjt stat; 340 uint32_t vid, flag; 341 int rc; 342 u32 remote_did; 343 344 memset(&stat, 0, sizeof (struct ls_rjt)); 345 pcmd = cmdiocb->cmd_dmabuf; 346 lp = (uint32_t *) pcmd->virt; 347 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 348 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 349 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 350 "0140 PLOGI Reject: invalid pname\n"); 351 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 352 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 353 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 354 NULL); 355 return 0; 356 } 357 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 358 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 359 "0141 PLOGI Reject: invalid nname\n"); 360 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 361 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 362 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 363 NULL); 364 return 0; 365 } 366 367 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 368 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 369 /* Reject this request because invalid parameters */ 370 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 371 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 372 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 373 NULL); 374 return 0; 375 } 376 377 if (phba->sli_rev == LPFC_SLI_REV4) 378 wqe = &cmdiocb->wqe; 379 else 380 icmd = &cmdiocb->iocb; 381 382 /* PLOGI chkparm OK */ 383 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 384 "0114 PLOGI chkparm OK Data: x%x x%x x%x " 385 "x%x x%x x%x\n", 386 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 387 ndlp->nlp_rpi, vport->port_state, 388 vport->fc_flag); 389 390 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 391 ndlp->nlp_fcp_info |= CLASS2; 392 else 393 ndlp->nlp_fcp_info |= CLASS3; 394 395 ndlp->nlp_class_sup = 0; 396 if (sp->cls1.classValid) 397 ndlp->nlp_class_sup |= FC_COS_CLASS1; 398 if (sp->cls2.classValid) 399 ndlp->nlp_class_sup |= FC_COS_CLASS2; 400 if (sp->cls3.classValid) 401 ndlp->nlp_class_sup |= FC_COS_CLASS3; 402 if (sp->cls4.classValid) 403 ndlp->nlp_class_sup |= FC_COS_CLASS4; 404 ndlp->nlp_maxframe = 405 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 406 /* if already logged in, do implicit logout */ 407 switch (ndlp->nlp_state) { 408 case NLP_STE_NPR_NODE: 409 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 410 break; 411 fallthrough; 412 case NLP_STE_REG_LOGIN_ISSUE: 413 case NLP_STE_PRLI_ISSUE: 414 case NLP_STE_UNMAPPED_NODE: 415 case NLP_STE_MAPPED_NODE: 416 /* For initiators, lpfc_plogi_confirm_nport skips fabric did. 417 * For target mode, execute implicit logo. 418 * Fabric nodes go into NPR. 419 */ 420 if (!(ndlp->nlp_type & NLP_FABRIC) && 421 !(phba->nvmet_support)) { 422 /* Clear ndlp info, since follow up PRLI may have 423 * updated ndlp information 424 */ 425 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 426 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 427 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 428 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 429 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 430 431 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 432 ndlp, NULL); 433 return 1; 434 } 435 if (nlp_portwwn != 0 && 436 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 437 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 438 "0143 PLOGI recv'd from DID: x%x " 439 "WWPN changed: old %llx new %llx\n", 440 ndlp->nlp_DID, 441 (unsigned long long)nlp_portwwn, 442 (unsigned long long) 443 wwn_to_u64(sp->portName.u.wwn)); 444 445 /* Notify transport of connectivity loss to trigger cleanup. */ 446 if (phba->nvmet_support && 447 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 448 lpfc_nvmet_invalidate_host(phba, ndlp); 449 450 ndlp->nlp_prev_state = ndlp->nlp_state; 451 /* rport needs to be unregistered first */ 452 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 453 break; 454 } 455 456 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 457 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 458 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 459 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 460 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 461 462 login_mbox = NULL; 463 link_mbox = NULL; 464 save_iocb = NULL; 465 466 /* Check for Nport to NPort pt2pt protocol */ 467 if ((vport->fc_flag & FC_PT2PT) && 468 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 469 /* rcv'ed PLOGI decides what our NPortId will be */ 470 if (phba->sli_rev == LPFC_SLI_REV4) { 471 vport->fc_myDID = bf_get(els_rsp64_sid, 472 &cmdiocb->wqe.xmit_els_rsp); 473 } else { 474 vport->fc_myDID = icmd->un.rcvels.parmRo; 475 } 476 477 /* If there is an outstanding FLOGI, abort it now. 478 * The remote NPort is not going to ACC our FLOGI 479 * if its already issuing a PLOGI for pt2pt mode. 480 * This indicates our FLOGI was dropped; however, we 481 * must have ACCed the remote NPorts FLOGI to us 482 * to make it here. 483 */ 484 if (phba->hba_flag & HBA_FLOGI_OUTSTANDING) 485 lpfc_els_abort_flogi(phba); 486 487 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 488 if (sp->cmn.edtovResolution) { 489 /* E_D_TOV ticks are in nanoseconds */ 490 ed_tov = (phba->fc_edtov + 999999) / 1000000; 491 } 492 493 /* 494 * For pt-to-pt, use the larger EDTOV 495 * RATOV = 2 * EDTOV 496 */ 497 if (ed_tov > phba->fc_edtov) 498 phba->fc_edtov = ed_tov; 499 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 500 501 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 502 503 /* Issue CONFIG_LINK for SLI3 or REG_VFI for SLI4, 504 * to account for updated TOV's / parameters 505 */ 506 if (phba->sli_rev == LPFC_SLI_REV4) 507 lpfc_issue_reg_vfi(vport); 508 else { 509 link_mbox = mempool_alloc(phba->mbox_mem_pool, 510 GFP_KERNEL); 511 if (!link_mbox) 512 goto out; 513 lpfc_config_link(phba, link_mbox); 514 link_mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 515 link_mbox->vport = vport; 516 517 /* The default completion handling for CONFIG_LINK 518 * does not require the ndlp so no reference is needed. 519 */ 520 link_mbox->ctx_ndlp = ndlp; 521 522 rc = lpfc_sli_issue_mbox(phba, link_mbox, MBX_NOWAIT); 523 if (rc == MBX_NOT_FINISHED) { 524 mempool_free(link_mbox, phba->mbox_mem_pool); 525 goto out; 526 } 527 } 528 529 lpfc_can_disctmo(vport); 530 } 531 532 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 533 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 534 sp->cmn.valid_vendor_ver_level) { 535 vid = be32_to_cpu(sp->un.vv.vid); 536 flag = be32_to_cpu(sp->un.vv.flags); 537 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) 538 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 539 } 540 541 login_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 542 if (!login_mbox) 543 goto out; 544 545 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL); 546 if (!save_iocb) 547 goto out; 548 549 /* Save info from cmd IOCB to be used in rsp after all mbox completes */ 550 memcpy((uint8_t *)save_iocb, (uint8_t *)cmdiocb, 551 sizeof(struct lpfc_iocbq)); 552 553 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 554 if (phba->sli_rev == LPFC_SLI_REV4) 555 lpfc_unreg_rpi(vport, ndlp); 556 557 /* Issue REG_LOGIN first, before ACCing the PLOGI, thus we will 558 * always be deferring the ACC. 559 */ 560 if (phba->sli_rev == LPFC_SLI_REV4) 561 remote_did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest); 562 else 563 remote_did = icmd->un.rcvels.remoteID; 564 rc = lpfc_reg_rpi(phba, vport->vpi, remote_did, 565 (uint8_t *)sp, login_mbox, ndlp->nlp_rpi); 566 if (rc) 567 goto out; 568 569 login_mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 570 login_mbox->vport = vport; 571 572 /* 573 * If there is an outstanding PLOGI issued, abort it before 574 * sending ACC rsp for received PLOGI. If pending plogi 575 * is not canceled here, the plogi will be rejected by 576 * remote port and will be retried. On a configuration with 577 * single discovery thread, this will cause a huge delay in 578 * discovery. Also this will cause multiple state machines 579 * running in parallel for this node. 580 * This only applies to a fabric environment. 581 */ 582 if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) && 583 (vport->fc_flag & FC_FABRIC)) { 584 /* software abort outstanding PLOGI */ 585 lpfc_els_abort(phba, ndlp); 586 } 587 588 if ((vport->port_type == LPFC_NPIV_PORT && 589 vport->cfg_restrict_login)) { 590 591 /* no deferred ACC */ 592 kfree(save_iocb); 593 594 /* This is an NPIV SLI4 instance that does not need to register 595 * a default RPI. 596 */ 597 if (phba->sli_rev == LPFC_SLI_REV4) { 598 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 599 MBOX_THD_UNLOCKED); 600 login_mbox = NULL; 601 } else { 602 /* In order to preserve RPIs, we want to cleanup 603 * the default RPI the firmware created to rcv 604 * this ELS request. The only way to do this is 605 * to register, then unregister the RPI. 606 */ 607 spin_lock_irq(&ndlp->lock); 608 ndlp->nlp_flag |= (NLP_RM_DFLT_RPI | NLP_ACC_REGLOGIN | 609 NLP_RCV_PLOGI); 610 spin_unlock_irq(&ndlp->lock); 611 } 612 613 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 614 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 615 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 616 ndlp, login_mbox); 617 if (rc && login_mbox) 618 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 619 MBOX_THD_UNLOCKED); 620 return 1; 621 } 622 623 /* So the order here should be: 624 * SLI3 pt2pt 625 * Issue CONFIG_LINK mbox 626 * CONFIG_LINK cmpl 627 * SLI4 pt2pt 628 * Issue REG_VFI mbox 629 * REG_VFI cmpl 630 * SLI4 631 * Issue UNREG RPI mbx 632 * UNREG RPI cmpl 633 * Issue REG_RPI mbox 634 * REG RPI cmpl 635 * Issue PLOGI ACC 636 * PLOGI ACC cmpl 637 */ 638 login_mbox->mbox_cmpl = lpfc_defer_plogi_acc; 639 login_mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 640 if (!login_mbox->ctx_ndlp) 641 goto out; 642 643 login_mbox->context3 = save_iocb; /* For PLOGI ACC */ 644 645 spin_lock_irq(&ndlp->lock); 646 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 647 spin_unlock_irq(&ndlp->lock); 648 649 /* Start the ball rolling by issuing REG_LOGIN here */ 650 rc = lpfc_sli_issue_mbox(phba, login_mbox, MBX_NOWAIT); 651 if (rc == MBX_NOT_FINISHED) { 652 lpfc_nlp_put(ndlp); 653 goto out; 654 } 655 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); 656 657 return 1; 658 out: 659 kfree(save_iocb); 660 if (login_mbox) 661 mempool_free(login_mbox, phba->mbox_mem_pool); 662 663 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 664 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 665 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 666 return 0; 667 } 668 669 /** 670 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 671 * @phba: pointer to lpfc hba data structure. 672 * @mboxq: pointer to mailbox object 673 * 674 * This routine is invoked to issue a completion to a rcv'ed 675 * ADISC or PDISC after the paused RPI has been resumed. 676 **/ 677 static void 678 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 679 { 680 struct lpfc_vport *vport; 681 struct lpfc_iocbq *elsiocb; 682 struct lpfc_nodelist *ndlp; 683 uint32_t cmd; 684 685 elsiocb = (struct lpfc_iocbq *)mboxq->ctx_buf; 686 ndlp = (struct lpfc_nodelist *)mboxq->ctx_ndlp; 687 vport = mboxq->vport; 688 cmd = elsiocb->drvrTimeout; 689 690 if (cmd == ELS_CMD_ADISC) { 691 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 692 } else { 693 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 694 ndlp, NULL); 695 } 696 697 /* This nlp_put pairs with lpfc_sli4_resume_rpi */ 698 lpfc_nlp_put(ndlp); 699 700 kfree(elsiocb); 701 mempool_free(mboxq, phba->mbox_mem_pool); 702 } 703 704 static int 705 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 706 struct lpfc_iocbq *cmdiocb) 707 { 708 struct lpfc_hba *phba = vport->phba; 709 struct lpfc_iocbq *elsiocb; 710 struct lpfc_dmabuf *pcmd; 711 struct serv_parm *sp; 712 struct lpfc_name *pnn, *ppn; 713 struct ls_rjt stat; 714 ADISC *ap; 715 uint32_t *lp; 716 uint32_t cmd; 717 718 pcmd = cmdiocb->cmd_dmabuf; 719 lp = (uint32_t *) pcmd->virt; 720 721 cmd = *lp++; 722 if (cmd == ELS_CMD_ADISC) { 723 ap = (ADISC *) lp; 724 pnn = (struct lpfc_name *) & ap->nodeName; 725 ppn = (struct lpfc_name *) & ap->portName; 726 } else { 727 sp = (struct serv_parm *) lp; 728 pnn = (struct lpfc_name *) & sp->nodeName; 729 ppn = (struct lpfc_name *) & sp->portName; 730 } 731 732 if (get_job_ulpstatus(phba, cmdiocb) == 0 && 733 lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 734 735 /* 736 * As soon as we send ACC, the remote NPort can 737 * start sending us data. Thus, for SLI4 we must 738 * resume the RPI before the ACC goes out. 739 */ 740 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 741 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 742 GFP_KERNEL); 743 if (elsiocb) { 744 /* Save info from cmd IOCB used in rsp */ 745 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 746 sizeof(struct lpfc_iocbq)); 747 748 /* Save the ELS cmd */ 749 elsiocb->drvrTimeout = cmd; 750 751 if (lpfc_sli4_resume_rpi(ndlp, 752 lpfc_mbx_cmpl_resume_rpi, 753 elsiocb)) 754 kfree(elsiocb); 755 goto out; 756 } 757 } 758 759 if (cmd == ELS_CMD_ADISC) { 760 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 761 } else { 762 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 763 ndlp, NULL); 764 } 765 out: 766 /* If we are authenticated, move to the proper state. 767 * It is possible an ADISC arrived and the remote nport 768 * is already in MAPPED or UNMAPPED state. Catch this 769 * condition and don't set the nlp_state again because 770 * it causes an unnecessary transport unregister/register. 771 * 772 * Nodes marked for ADISC will move MAPPED or UNMAPPED state 773 * after issuing ADISC 774 */ 775 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 776 if ((ndlp->nlp_state != NLP_STE_MAPPED_NODE) && 777 !(ndlp->nlp_flag & NLP_NPR_ADISC)) 778 lpfc_nlp_set_state(vport, ndlp, 779 NLP_STE_MAPPED_NODE); 780 } 781 782 return 1; 783 } 784 /* Reject this request because invalid parameters */ 785 stat.un.b.lsRjtRsvd0 = 0; 786 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 787 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 788 stat.un.b.vendorUnique = 0; 789 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 790 791 /* 1 sec timeout */ 792 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 793 794 spin_lock_irq(&ndlp->lock); 795 ndlp->nlp_flag |= NLP_DELAY_TMO; 796 spin_unlock_irq(&ndlp->lock); 797 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 798 ndlp->nlp_prev_state = ndlp->nlp_state; 799 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 800 return 0; 801 } 802 803 static int 804 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 805 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 806 { 807 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 808 struct lpfc_hba *phba = vport->phba; 809 struct lpfc_vport **vports; 810 int i, active_vlink_present = 0 ; 811 812 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 813 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 814 * PLOGIs during LOGO storms from a device. 815 */ 816 spin_lock_irq(&ndlp->lock); 817 ndlp->nlp_flag |= NLP_LOGO_ACC; 818 spin_unlock_irq(&ndlp->lock); 819 if (els_cmd == ELS_CMD_PRLO) 820 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 821 else 822 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 823 824 /* This clause allows the initiator to ACC the LOGO back to the 825 * Fabric Domain Controller. It does deliberately skip all other 826 * steps because some fabrics send RDP requests after logging out 827 * from the initiator. 828 */ 829 if (ndlp->nlp_type & NLP_FABRIC && 830 ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK)) 831 return 0; 832 833 /* Notify transport of connectivity loss to trigger cleanup. */ 834 if (phba->nvmet_support && 835 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 836 lpfc_nvmet_invalidate_host(phba, ndlp); 837 838 if (ndlp->nlp_DID == Fabric_DID) { 839 if (vport->port_state <= LPFC_FDISC || 840 vport->fc_flag & FC_PT2PT) 841 goto out; 842 lpfc_linkdown_port(vport); 843 spin_lock_irq(shost->host_lock); 844 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 845 spin_unlock_irq(shost->host_lock); 846 vports = lpfc_create_vport_work_array(phba); 847 if (vports) { 848 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 849 i++) { 850 if ((!(vports[i]->fc_flag & 851 FC_VPORT_LOGO_RCVD)) && 852 (vports[i]->port_state > LPFC_FDISC)) { 853 active_vlink_present = 1; 854 break; 855 } 856 } 857 lpfc_destroy_vport_work_array(phba, vports); 858 } 859 860 /* 861 * Don't re-instantiate if vport is marked for deletion. 862 * If we are here first then vport_delete is going to wait 863 * for discovery to complete. 864 */ 865 if (!(vport->load_flag & FC_UNLOADING) && 866 active_vlink_present) { 867 /* 868 * If there are other active VLinks present, 869 * re-instantiate the Vlink using FDISC. 870 */ 871 mod_timer(&ndlp->nlp_delayfunc, 872 jiffies + msecs_to_jiffies(1000)); 873 spin_lock_irq(&ndlp->lock); 874 ndlp->nlp_flag |= NLP_DELAY_TMO; 875 spin_unlock_irq(&ndlp->lock); 876 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 877 vport->port_state = LPFC_FDISC; 878 } else { 879 spin_lock_irq(shost->host_lock); 880 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 881 spin_unlock_irq(shost->host_lock); 882 lpfc_retry_pport_discovery(phba); 883 } 884 } else { 885 lpfc_printf_vlog(vport, KERN_INFO, 886 LOG_NODE | LOG_ELS | LOG_DISCOVERY, 887 "3203 LOGO recover nport x%06x state x%x " 888 "ntype x%x fc_flag x%x\n", 889 ndlp->nlp_DID, ndlp->nlp_state, 890 ndlp->nlp_type, vport->fc_flag); 891 892 /* Special cases for rports that recover post LOGO. */ 893 if ((!(ndlp->nlp_type == NLP_FABRIC) && 894 (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) || 895 vport->fc_flag & FC_PT2PT)) || 896 (ndlp->nlp_state >= NLP_STE_ADISC_ISSUE || 897 ndlp->nlp_state <= NLP_STE_PRLI_ISSUE)) { 898 mod_timer(&ndlp->nlp_delayfunc, 899 jiffies + msecs_to_jiffies(1000 * 1)); 900 spin_lock_irq(&ndlp->lock); 901 ndlp->nlp_flag |= NLP_DELAY_TMO; 902 spin_unlock_irq(&ndlp->lock); 903 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 904 lpfc_printf_vlog(vport, KERN_INFO, 905 LOG_NODE | LOG_ELS | LOG_DISCOVERY, 906 "3204 Start nlpdelay on DID x%06x " 907 "nflag x%x lastels x%x ref cnt %u", 908 ndlp->nlp_DID, ndlp->nlp_flag, 909 ndlp->nlp_last_elscmd, 910 kref_read(&ndlp->kref)); 911 } 912 } 913 out: 914 /* Unregister from backend, could have been skipped due to ADISC */ 915 lpfc_nlp_unreg_node(vport, ndlp); 916 917 ndlp->nlp_prev_state = ndlp->nlp_state; 918 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 919 920 spin_lock_irq(&ndlp->lock); 921 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 922 spin_unlock_irq(&ndlp->lock); 923 /* The driver has to wait until the ACC completes before it continues 924 * processing the LOGO. The action will resume in 925 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 926 * unreg_login, the driver waits so the ACC does not get aborted. 927 */ 928 return 0; 929 } 930 931 static uint32_t 932 lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 933 struct lpfc_nodelist *ndlp, 934 struct lpfc_iocbq *cmdiocb) 935 { 936 struct ls_rjt stat; 937 uint32_t *payload; 938 uint32_t cmd; 939 940 payload = cmdiocb->cmd_dmabuf->virt; 941 cmd = *payload; 942 if (vport->phba->nvmet_support) { 943 /* Must be a NVME PRLI */ 944 if (cmd == ELS_CMD_PRLI) 945 goto out; 946 } else { 947 /* Initiator mode. */ 948 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 949 goto out; 950 } 951 return 1; 952 out: 953 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC, 954 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 955 "state x%x flags x%x\n", 956 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 957 ndlp->nlp_flag); 958 memset(&stat, 0, sizeof(struct ls_rjt)); 959 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 960 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 961 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 962 ndlp, NULL); 963 return 0; 964 } 965 966 static void 967 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 968 struct lpfc_iocbq *cmdiocb) 969 { 970 struct lpfc_hba *phba = vport->phba; 971 struct lpfc_dmabuf *pcmd; 972 uint32_t *lp; 973 PRLI *npr; 974 struct fc_rport *rport = ndlp->rport; 975 u32 roles; 976 977 pcmd = cmdiocb->cmd_dmabuf; 978 lp = (uint32_t *)pcmd->virt; 979 npr = (PRLI *)((uint8_t *)lp + sizeof(uint32_t)); 980 981 if ((npr->prliType == PRLI_FCP_TYPE) || 982 (npr->prliType == PRLI_NVME_TYPE)) { 983 if (npr->initiatorFunc) { 984 if (npr->prliType == PRLI_FCP_TYPE) 985 ndlp->nlp_type |= NLP_FCP_INITIATOR; 986 if (npr->prliType == PRLI_NVME_TYPE) 987 ndlp->nlp_type |= NLP_NVME_INITIATOR; 988 } 989 if (npr->targetFunc) { 990 if (npr->prliType == PRLI_FCP_TYPE) 991 ndlp->nlp_type |= NLP_FCP_TARGET; 992 if (npr->prliType == PRLI_NVME_TYPE) 993 ndlp->nlp_type |= NLP_NVME_TARGET; 994 if (npr->writeXferRdyDis) 995 ndlp->nlp_flag |= NLP_FIRSTBURST; 996 } 997 if (npr->Retry && ndlp->nlp_type & 998 (NLP_FCP_INITIATOR | NLP_FCP_TARGET)) 999 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 1000 1001 if (npr->Retry && phba->nsler && 1002 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET)) 1003 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 1004 1005 1006 /* If this driver is in nvme target mode, set the ndlp's fc4 1007 * type to NVME provided the PRLI response claims NVME FC4 1008 * type. Target mode does not issue gft_id so doesn't get 1009 * the fc4 type set until now. 1010 */ 1011 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 1012 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1013 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1014 } 1015 1016 /* Fabric Controllers send FCP PRLI as an initiator but should 1017 * not get recognized as FCP type and registered with transport. 1018 */ 1019 if (npr->prliType == PRLI_FCP_TYPE && 1020 !(ndlp->nlp_type & NLP_FABRIC)) 1021 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1022 } 1023 if (rport) { 1024 /* We need to update the rport role values */ 1025 roles = FC_RPORT_ROLE_UNKNOWN; 1026 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 1027 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 1028 if (ndlp->nlp_type & NLP_FCP_TARGET) 1029 roles |= FC_RPORT_ROLE_FCP_TARGET; 1030 1031 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 1032 "rport rolechg: role:x%x did:x%x flg:x%x", 1033 roles, ndlp->nlp_DID, ndlp->nlp_flag); 1034 1035 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1036 fc_remote_port_rolechg(rport, roles); 1037 } 1038 } 1039 1040 static uint32_t 1041 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 1042 { 1043 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 1044 spin_lock_irq(&ndlp->lock); 1045 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1046 spin_unlock_irq(&ndlp->lock); 1047 return 0; 1048 } 1049 1050 if (!(vport->fc_flag & FC_PT2PT)) { 1051 /* Check config parameter use-adisc or FCP-2 */ 1052 if (vport->cfg_use_adisc && ((vport->fc_flag & FC_RSCN_MODE) || 1053 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 1054 (ndlp->nlp_type & NLP_FCP_TARGET)))) { 1055 spin_lock_irq(&ndlp->lock); 1056 ndlp->nlp_flag |= NLP_NPR_ADISC; 1057 spin_unlock_irq(&ndlp->lock); 1058 return 1; 1059 } 1060 } 1061 1062 spin_lock_irq(&ndlp->lock); 1063 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1064 spin_unlock_irq(&ndlp->lock); 1065 lpfc_unreg_rpi(vport, ndlp); 1066 return 0; 1067 } 1068 1069 /** 1070 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 1071 * @phba : Pointer to lpfc_hba structure. 1072 * @vport: Pointer to lpfc_vport structure. 1073 * @ndlp: Pointer to lpfc_nodelist structure. 1074 * @rpi : rpi to be release. 1075 * 1076 * This function will send a unreg_login mailbox command to the firmware 1077 * to release a rpi. 1078 **/ 1079 static void 1080 lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, 1081 struct lpfc_nodelist *ndlp, uint16_t rpi) 1082 { 1083 LPFC_MBOXQ_t *pmb; 1084 int rc; 1085 1086 /* If there is already an UNREG in progress for this ndlp, 1087 * no need to queue up another one. 1088 */ 1089 if (ndlp->nlp_flag & NLP_UNREG_INP) { 1090 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1091 "1435 release_rpi SKIP UNREG x%x on " 1092 "NPort x%x deferred x%x flg x%x " 1093 "Data: x%px\n", 1094 ndlp->nlp_rpi, ndlp->nlp_DID, 1095 ndlp->nlp_defer_did, 1096 ndlp->nlp_flag, ndlp); 1097 return; 1098 } 1099 1100 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 1101 GFP_KERNEL); 1102 if (!pmb) 1103 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1104 "2796 mailbox memory allocation failed \n"); 1105 else { 1106 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 1107 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1108 pmb->vport = vport; 1109 pmb->ctx_ndlp = lpfc_nlp_get(ndlp); 1110 if (!pmb->ctx_ndlp) { 1111 mempool_free(pmb, phba->mbox_mem_pool); 1112 return; 1113 } 1114 1115 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 1116 (!(vport->fc_flag & FC_OFFLINE_MODE))) 1117 ndlp->nlp_flag |= NLP_UNREG_INP; 1118 1119 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1120 "1437 release_rpi UNREG x%x " 1121 "on NPort x%x flg x%x\n", 1122 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); 1123 1124 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 1125 if (rc == MBX_NOT_FINISHED) { 1126 lpfc_nlp_put(ndlp); 1127 mempool_free(pmb, phba->mbox_mem_pool); 1128 } 1129 } 1130 } 1131 1132 static uint32_t 1133 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1134 void *arg, uint32_t evt) 1135 { 1136 struct lpfc_hba *phba; 1137 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1138 uint16_t rpi; 1139 1140 phba = vport->phba; 1141 /* Release the RPI if reglogin completing */ 1142 if (!(phba->pport->load_flag & FC_UNLOADING) && 1143 (evt == NLP_EVT_CMPL_REG_LOGIN) && 1144 (!pmb->u.mb.mbxStatus)) { 1145 rpi = pmb->u.mb.un.varWords[0]; 1146 lpfc_release_rpi(phba, vport, ndlp, rpi); 1147 } 1148 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1149 "0271 Illegal State Transition: node x%x " 1150 "event x%x, state x%x Data: x%x x%x\n", 1151 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1152 ndlp->nlp_flag); 1153 return ndlp->nlp_state; 1154 } 1155 1156 static uint32_t 1157 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1158 void *arg, uint32_t evt) 1159 { 1160 /* This transition is only legal if we previously 1161 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 1162 * working on the same NPortID, do nothing for this thread 1163 * to stop it. 1164 */ 1165 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 1166 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1167 "0272 Illegal State Transition: node x%x " 1168 "event x%x, state x%x Data: x%x x%x\n", 1169 ndlp->nlp_DID, evt, ndlp->nlp_state, 1170 ndlp->nlp_rpi, ndlp->nlp_flag); 1171 } 1172 return ndlp->nlp_state; 1173 } 1174 1175 /* Start of Discovery State Machine routines */ 1176 1177 static uint32_t 1178 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1179 void *arg, uint32_t evt) 1180 { 1181 struct lpfc_iocbq *cmdiocb; 1182 1183 cmdiocb = (struct lpfc_iocbq *) arg; 1184 1185 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1186 return ndlp->nlp_state; 1187 } 1188 return NLP_STE_FREED_NODE; 1189 } 1190 1191 static uint32_t 1192 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1193 void *arg, uint32_t evt) 1194 { 1195 lpfc_issue_els_logo(vport, ndlp, 0); 1196 return ndlp->nlp_state; 1197 } 1198 1199 static uint32_t 1200 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1201 void *arg, uint32_t evt) 1202 { 1203 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1204 1205 spin_lock_irq(&ndlp->lock); 1206 ndlp->nlp_flag |= NLP_LOGO_ACC; 1207 spin_unlock_irq(&ndlp->lock); 1208 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1209 1210 return ndlp->nlp_state; 1211 } 1212 1213 static uint32_t 1214 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1215 void *arg, uint32_t evt) 1216 { 1217 return NLP_STE_FREED_NODE; 1218 } 1219 1220 static uint32_t 1221 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1222 void *arg, uint32_t evt) 1223 { 1224 return NLP_STE_FREED_NODE; 1225 } 1226 1227 static uint32_t 1228 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 1229 struct lpfc_nodelist *ndlp, 1230 void *arg, uint32_t evt) 1231 { 1232 return ndlp->nlp_state; 1233 } 1234 1235 static uint32_t 1236 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1237 void *arg, uint32_t evt) 1238 { 1239 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1240 struct lpfc_hba *phba = vport->phba; 1241 struct lpfc_iocbq *cmdiocb = arg; 1242 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 1243 uint32_t *lp = (uint32_t *) pcmd->virt; 1244 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1245 struct ls_rjt stat; 1246 int port_cmp; 1247 1248 memset(&stat, 0, sizeof (struct ls_rjt)); 1249 1250 /* For a PLOGI, we only accept if our portname is less 1251 * than the remote portname. 1252 */ 1253 phba->fc_stat.elsLogiCol++; 1254 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1255 sizeof(struct lpfc_name)); 1256 1257 if (port_cmp >= 0) { 1258 /* Reject this request because the remote node will accept 1259 ours */ 1260 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1261 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1262 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1263 NULL); 1264 } else { 1265 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1266 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 1267 (vport->num_disc_nodes)) { 1268 spin_lock_irq(&ndlp->lock); 1269 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1270 spin_unlock_irq(&ndlp->lock); 1271 /* Check if there are more PLOGIs to be sent */ 1272 lpfc_more_plogi(vport); 1273 if (vport->num_disc_nodes == 0) { 1274 spin_lock_irq(shost->host_lock); 1275 vport->fc_flag &= ~FC_NDISC_ACTIVE; 1276 spin_unlock_irq(shost->host_lock); 1277 lpfc_can_disctmo(vport); 1278 lpfc_end_rscn(vport); 1279 } 1280 } 1281 } /* If our portname was less */ 1282 1283 return ndlp->nlp_state; 1284 } 1285 1286 static uint32_t 1287 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1288 void *arg, uint32_t evt) 1289 { 1290 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1291 struct ls_rjt stat; 1292 1293 memset(&stat, 0, sizeof (struct ls_rjt)); 1294 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1295 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1296 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1297 return ndlp->nlp_state; 1298 } 1299 1300 static uint32_t 1301 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1302 void *arg, uint32_t evt) 1303 { 1304 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1305 1306 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1307 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1308 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1309 /* software abort outstanding PLOGI */ 1310 lpfc_els_abort(vport->phba, ndlp); 1311 1312 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1313 return ndlp->nlp_state; 1314 } 1315 1316 static uint32_t 1317 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1318 void *arg, uint32_t evt) 1319 { 1320 struct lpfc_hba *phba = vport->phba; 1321 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1322 1323 /* software abort outstanding PLOGI */ 1324 lpfc_els_abort(phba, ndlp); 1325 1326 if (evt == NLP_EVT_RCV_LOGO) { 1327 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1328 } else { 1329 lpfc_issue_els_logo(vport, ndlp, 0); 1330 } 1331 1332 /* Put ndlp in npr state set plogi timer for 1 sec */ 1333 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1334 spin_lock_irq(&ndlp->lock); 1335 ndlp->nlp_flag |= NLP_DELAY_TMO; 1336 spin_unlock_irq(&ndlp->lock); 1337 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1338 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1339 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1340 1341 return ndlp->nlp_state; 1342 } 1343 1344 static uint32_t 1345 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1346 struct lpfc_nodelist *ndlp, 1347 void *arg, 1348 uint32_t evt) 1349 { 1350 struct lpfc_hba *phba = vport->phba; 1351 struct lpfc_iocbq *cmdiocb, *rspiocb; 1352 struct lpfc_dmabuf *pcmd, *prsp; 1353 uint32_t *lp; 1354 uint32_t vid, flag; 1355 struct serv_parm *sp; 1356 uint32_t ed_tov; 1357 LPFC_MBOXQ_t *mbox; 1358 int rc; 1359 u32 ulp_status; 1360 u32 did; 1361 1362 cmdiocb = (struct lpfc_iocbq *) arg; 1363 rspiocb = cmdiocb->rsp_iocb; 1364 1365 ulp_status = get_job_ulpstatus(phba, rspiocb); 1366 1367 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1368 /* Recovery from PLOGI collision logic */ 1369 return ndlp->nlp_state; 1370 } 1371 1372 if (ulp_status) 1373 goto out; 1374 1375 pcmd = cmdiocb->cmd_dmabuf; 1376 1377 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1378 if (!prsp) 1379 goto out; 1380 1381 lp = (uint32_t *) prsp->virt; 1382 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1383 1384 /* Some switches have FDMI servers returning 0 for WWN */ 1385 if ((ndlp->nlp_DID != FDMI_DID) && 1386 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1387 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1388 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1389 "0142 PLOGI RSP: Invalid WWN.\n"); 1390 goto out; 1391 } 1392 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1393 goto out; 1394 /* PLOGI chkparm OK */ 1395 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1396 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1397 ndlp->nlp_DID, ndlp->nlp_state, 1398 ndlp->nlp_flag, ndlp->nlp_rpi); 1399 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1400 ndlp->nlp_fcp_info |= CLASS2; 1401 else 1402 ndlp->nlp_fcp_info |= CLASS3; 1403 1404 ndlp->nlp_class_sup = 0; 1405 if (sp->cls1.classValid) 1406 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1407 if (sp->cls2.classValid) 1408 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1409 if (sp->cls3.classValid) 1410 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1411 if (sp->cls4.classValid) 1412 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1413 ndlp->nlp_maxframe = 1414 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1415 1416 if ((vport->fc_flag & FC_PT2PT) && 1417 (vport->fc_flag & FC_PT2PT_PLOGI)) { 1418 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1419 if (sp->cmn.edtovResolution) { 1420 /* E_D_TOV ticks are in nanoseconds */ 1421 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1422 } 1423 1424 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 1425 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1426 sp->cmn.valid_vendor_ver_level) { 1427 vid = be32_to_cpu(sp->un.vv.vid); 1428 flag = be32_to_cpu(sp->un.vv.flags); 1429 if ((vid == LPFC_VV_EMLX_ID) && 1430 (flag & LPFC_VV_SUPPRESS_RSP)) 1431 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 1432 } 1433 1434 /* 1435 * Use the larger EDTOV 1436 * RATOV = 2 * EDTOV for pt-to-pt 1437 */ 1438 if (ed_tov > phba->fc_edtov) 1439 phba->fc_edtov = ed_tov; 1440 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1441 1442 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1443 1444 /* Issue config_link / reg_vfi to account for updated TOV's */ 1445 if (phba->sli_rev == LPFC_SLI_REV4) { 1446 lpfc_issue_reg_vfi(vport); 1447 } else { 1448 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1449 if (!mbox) { 1450 lpfc_printf_vlog(vport, KERN_ERR, 1451 LOG_TRACE_EVENT, 1452 "0133 PLOGI: no memory " 1453 "for config_link " 1454 "Data: x%x x%x x%x x%x\n", 1455 ndlp->nlp_DID, ndlp->nlp_state, 1456 ndlp->nlp_flag, ndlp->nlp_rpi); 1457 goto out; 1458 } 1459 1460 lpfc_config_link(phba, mbox); 1461 1462 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1463 mbox->vport = vport; 1464 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1465 if (rc == MBX_NOT_FINISHED) { 1466 mempool_free(mbox, phba->mbox_mem_pool); 1467 goto out; 1468 } 1469 } 1470 } 1471 1472 lpfc_unreg_rpi(vport, ndlp); 1473 1474 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1475 if (!mbox) { 1476 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1477 "0018 PLOGI: no memory for reg_login " 1478 "Data: x%x x%x x%x x%x\n", 1479 ndlp->nlp_DID, ndlp->nlp_state, 1480 ndlp->nlp_flag, ndlp->nlp_rpi); 1481 goto out; 1482 } 1483 1484 did = get_job_els_rsp64_did(phba, cmdiocb); 1485 1486 if (lpfc_reg_rpi(phba, vport->vpi, did, 1487 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1488 switch (ndlp->nlp_DID) { 1489 case NameServer_DID: 1490 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1491 /* Fabric Controller Node needs these parameters. */ 1492 memcpy(&ndlp->fc_sparam, sp, sizeof(struct serv_parm)); 1493 break; 1494 case FDMI_DID: 1495 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1496 break; 1497 default: 1498 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1499 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1500 } 1501 1502 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1503 if (!mbox->ctx_ndlp) 1504 goto out; 1505 1506 mbox->vport = vport; 1507 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1508 != MBX_NOT_FINISHED) { 1509 lpfc_nlp_set_state(vport, ndlp, 1510 NLP_STE_REG_LOGIN_ISSUE); 1511 return ndlp->nlp_state; 1512 } 1513 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1514 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1515 /* decrement node reference count to the failed mbox 1516 * command 1517 */ 1518 lpfc_nlp_put(ndlp); 1519 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 1520 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1521 "0134 PLOGI: cannot issue reg_login " 1522 "Data: x%x x%x x%x x%x\n", 1523 ndlp->nlp_DID, ndlp->nlp_state, 1524 ndlp->nlp_flag, ndlp->nlp_rpi); 1525 } else { 1526 mempool_free(mbox, phba->mbox_mem_pool); 1527 1528 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1529 "0135 PLOGI: cannot format reg_login " 1530 "Data: x%x x%x x%x x%x\n", 1531 ndlp->nlp_DID, ndlp->nlp_state, 1532 ndlp->nlp_flag, ndlp->nlp_rpi); 1533 } 1534 1535 1536 out: 1537 if (ndlp->nlp_DID == NameServer_DID) { 1538 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1539 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1540 "0261 Cannot Register NameServer login\n"); 1541 } 1542 1543 /* 1544 ** In case the node reference counter does not go to zero, ensure that 1545 ** the stale state for the node is not processed. 1546 */ 1547 1548 ndlp->nlp_prev_state = ndlp->nlp_state; 1549 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1550 return NLP_STE_FREED_NODE; 1551 } 1552 1553 static uint32_t 1554 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1555 void *arg, uint32_t evt) 1556 { 1557 return ndlp->nlp_state; 1558 } 1559 1560 static uint32_t 1561 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1562 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1563 { 1564 struct lpfc_hba *phba; 1565 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1566 MAILBOX_t *mb = &pmb->u.mb; 1567 uint16_t rpi; 1568 1569 phba = vport->phba; 1570 /* Release the RPI */ 1571 if (!(phba->pport->load_flag & FC_UNLOADING) && 1572 !mb->mbxStatus) { 1573 rpi = pmb->u.mb.un.varWords[0]; 1574 lpfc_release_rpi(phba, vport, ndlp, rpi); 1575 } 1576 return ndlp->nlp_state; 1577 } 1578 1579 static uint32_t 1580 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1581 void *arg, uint32_t evt) 1582 { 1583 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1584 spin_lock_irq(&ndlp->lock); 1585 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1586 spin_unlock_irq(&ndlp->lock); 1587 return ndlp->nlp_state; 1588 } else { 1589 /* software abort outstanding PLOGI */ 1590 lpfc_els_abort(vport->phba, ndlp); 1591 1592 lpfc_drop_node(vport, ndlp); 1593 return NLP_STE_FREED_NODE; 1594 } 1595 } 1596 1597 static uint32_t 1598 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1599 struct lpfc_nodelist *ndlp, 1600 void *arg, 1601 uint32_t evt) 1602 { 1603 struct lpfc_hba *phba = vport->phba; 1604 1605 /* Don't do anything that will mess up processing of the 1606 * previous RSCN. 1607 */ 1608 if (vport->fc_flag & FC_RSCN_DEFERRED) 1609 return ndlp->nlp_state; 1610 1611 /* software abort outstanding PLOGI */ 1612 lpfc_els_abort(phba, ndlp); 1613 1614 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1615 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1616 spin_lock_irq(&ndlp->lock); 1617 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1618 spin_unlock_irq(&ndlp->lock); 1619 1620 return ndlp->nlp_state; 1621 } 1622 1623 static uint32_t 1624 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1625 void *arg, uint32_t evt) 1626 { 1627 struct lpfc_hba *phba = vport->phba; 1628 struct lpfc_iocbq *cmdiocb; 1629 1630 /* software abort outstanding ADISC */ 1631 lpfc_els_abort(phba, ndlp); 1632 1633 cmdiocb = (struct lpfc_iocbq *) arg; 1634 1635 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1636 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1637 spin_lock_irq(&ndlp->lock); 1638 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1639 spin_unlock_irq(&ndlp->lock); 1640 if (vport->num_disc_nodes) 1641 lpfc_more_adisc(vport); 1642 } 1643 return ndlp->nlp_state; 1644 } 1645 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1646 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1647 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1648 1649 return ndlp->nlp_state; 1650 } 1651 1652 static uint32_t 1653 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1654 void *arg, uint32_t evt) 1655 { 1656 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1657 1658 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1659 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1660 return ndlp->nlp_state; 1661 } 1662 1663 static uint32_t 1664 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1665 void *arg, uint32_t evt) 1666 { 1667 struct lpfc_hba *phba = vport->phba; 1668 struct lpfc_iocbq *cmdiocb; 1669 1670 cmdiocb = (struct lpfc_iocbq *) arg; 1671 1672 /* software abort outstanding ADISC */ 1673 lpfc_els_abort(phba, ndlp); 1674 1675 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1676 return ndlp->nlp_state; 1677 } 1678 1679 static uint32_t 1680 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1681 struct lpfc_nodelist *ndlp, 1682 void *arg, uint32_t evt) 1683 { 1684 struct lpfc_iocbq *cmdiocb; 1685 1686 cmdiocb = (struct lpfc_iocbq *) arg; 1687 1688 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1689 return ndlp->nlp_state; 1690 } 1691 1692 static uint32_t 1693 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1694 void *arg, uint32_t evt) 1695 { 1696 struct lpfc_iocbq *cmdiocb; 1697 1698 cmdiocb = (struct lpfc_iocbq *) arg; 1699 1700 /* Treat like rcv logo */ 1701 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1702 return ndlp->nlp_state; 1703 } 1704 1705 static uint32_t 1706 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1707 struct lpfc_nodelist *ndlp, 1708 void *arg, uint32_t evt) 1709 { 1710 struct lpfc_hba *phba = vport->phba; 1711 struct lpfc_iocbq *cmdiocb, *rspiocb; 1712 ADISC *ap; 1713 int rc; 1714 u32 ulp_status; 1715 1716 cmdiocb = (struct lpfc_iocbq *) arg; 1717 rspiocb = cmdiocb->rsp_iocb; 1718 1719 ulp_status = get_job_ulpstatus(phba, rspiocb); 1720 1721 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1722 1723 if ((ulp_status) || 1724 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1725 /* 1 sec timeout */ 1726 mod_timer(&ndlp->nlp_delayfunc, 1727 jiffies + msecs_to_jiffies(1000)); 1728 spin_lock_irq(&ndlp->lock); 1729 ndlp->nlp_flag |= NLP_DELAY_TMO; 1730 spin_unlock_irq(&ndlp->lock); 1731 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1732 1733 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1734 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1735 lpfc_unreg_rpi(vport, ndlp); 1736 return ndlp->nlp_state; 1737 } 1738 1739 if (phba->sli_rev == LPFC_SLI_REV4) { 1740 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1741 if (rc) { 1742 /* Stay in state and retry. */ 1743 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1744 return ndlp->nlp_state; 1745 } 1746 } 1747 1748 if (ndlp->nlp_type & NLP_FCP_TARGET) 1749 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1750 1751 if (ndlp->nlp_type & NLP_NVME_TARGET) 1752 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1753 1754 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 1755 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1756 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1757 } else { 1758 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1759 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1760 } 1761 1762 return ndlp->nlp_state; 1763 } 1764 1765 static uint32_t 1766 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1767 void *arg, uint32_t evt) 1768 { 1769 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1770 spin_lock_irq(&ndlp->lock); 1771 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1772 spin_unlock_irq(&ndlp->lock); 1773 return ndlp->nlp_state; 1774 } else { 1775 /* software abort outstanding ADISC */ 1776 lpfc_els_abort(vport->phba, ndlp); 1777 1778 lpfc_drop_node(vport, ndlp); 1779 return NLP_STE_FREED_NODE; 1780 } 1781 } 1782 1783 static uint32_t 1784 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1785 struct lpfc_nodelist *ndlp, 1786 void *arg, 1787 uint32_t evt) 1788 { 1789 struct lpfc_hba *phba = vport->phba; 1790 1791 /* Don't do anything that will mess up processing of the 1792 * previous RSCN. 1793 */ 1794 if (vport->fc_flag & FC_RSCN_DEFERRED) 1795 return ndlp->nlp_state; 1796 1797 /* software abort outstanding ADISC */ 1798 lpfc_els_abort(phba, ndlp); 1799 1800 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1801 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1802 spin_lock_irq(&ndlp->lock); 1803 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1804 spin_unlock_irq(&ndlp->lock); 1805 lpfc_disc_set_adisc(vport, ndlp); 1806 return ndlp->nlp_state; 1807 } 1808 1809 static uint32_t 1810 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1811 struct lpfc_nodelist *ndlp, 1812 void *arg, 1813 uint32_t evt) 1814 { 1815 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1816 1817 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1818 return ndlp->nlp_state; 1819 } 1820 1821 static uint32_t 1822 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1823 struct lpfc_nodelist *ndlp, 1824 void *arg, 1825 uint32_t evt) 1826 { 1827 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1828 struct ls_rjt stat; 1829 1830 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1831 return ndlp->nlp_state; 1832 } 1833 if (vport->phba->nvmet_support) { 1834 /* NVME Target mode. Handle and respond to the PRLI and 1835 * transition to UNMAPPED provided the RPI has completed 1836 * registration. 1837 */ 1838 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 1839 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1840 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1841 } else { 1842 /* RPI registration has not completed. Reject the PRLI 1843 * to prevent an illegal state transition when the 1844 * rpi registration does complete. 1845 */ 1846 memset(&stat, 0, sizeof(struct ls_rjt)); 1847 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1848 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1849 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1850 ndlp, NULL); 1851 return ndlp->nlp_state; 1852 } 1853 } else { 1854 /* Initiator mode. */ 1855 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1856 } 1857 return ndlp->nlp_state; 1858 } 1859 1860 static uint32_t 1861 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1862 struct lpfc_nodelist *ndlp, 1863 void *arg, 1864 uint32_t evt) 1865 { 1866 struct lpfc_hba *phba = vport->phba; 1867 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1868 LPFC_MBOXQ_t *mb; 1869 LPFC_MBOXQ_t *nextmb; 1870 1871 cmdiocb = (struct lpfc_iocbq *) arg; 1872 1873 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1874 if ((mb = phba->sli.mbox_active)) { 1875 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1876 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1877 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1878 lpfc_nlp_put(ndlp); 1879 mb->ctx_ndlp = NULL; 1880 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1881 } 1882 } 1883 1884 spin_lock_irq(&phba->hbalock); 1885 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1886 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1887 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1888 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1889 lpfc_nlp_put(ndlp); 1890 list_del(&mb->list); 1891 phba->sli.mboxq_cnt--; 1892 lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_LOCKED); 1893 } 1894 } 1895 spin_unlock_irq(&phba->hbalock); 1896 1897 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1898 return ndlp->nlp_state; 1899 } 1900 1901 static uint32_t 1902 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1903 struct lpfc_nodelist *ndlp, 1904 void *arg, 1905 uint32_t evt) 1906 { 1907 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1908 1909 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1910 return ndlp->nlp_state; 1911 } 1912 1913 static uint32_t 1914 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1915 struct lpfc_nodelist *ndlp, 1916 void *arg, 1917 uint32_t evt) 1918 { 1919 struct lpfc_iocbq *cmdiocb; 1920 1921 cmdiocb = (struct lpfc_iocbq *) arg; 1922 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1923 return ndlp->nlp_state; 1924 } 1925 1926 static uint32_t 1927 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1928 struct lpfc_nodelist *ndlp, 1929 void *arg, 1930 uint32_t evt) 1931 { 1932 struct lpfc_hba *phba = vport->phba; 1933 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1934 MAILBOX_t *mb = &pmb->u.mb; 1935 uint32_t did = mb->un.varWords[1]; 1936 1937 if (mb->mbxStatus) { 1938 /* RegLogin failed */ 1939 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1940 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1941 "x%x\n", 1942 did, mb->mbxStatus, vport->port_state, 1943 mb->un.varRegLogin.vpi, 1944 mb->un.varRegLogin.rpi); 1945 /* 1946 * If RegLogin failed due to lack of HBA resources do not 1947 * retry discovery. 1948 */ 1949 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1950 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1951 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1952 return ndlp->nlp_state; 1953 } 1954 1955 /* Put ndlp in npr state set plogi timer for 1 sec */ 1956 mod_timer(&ndlp->nlp_delayfunc, 1957 jiffies + msecs_to_jiffies(1000 * 1)); 1958 spin_lock_irq(&ndlp->lock); 1959 ndlp->nlp_flag |= NLP_DELAY_TMO; 1960 spin_unlock_irq(&ndlp->lock); 1961 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1962 1963 lpfc_issue_els_logo(vport, ndlp, 0); 1964 return ndlp->nlp_state; 1965 } 1966 1967 /* SLI4 ports have preallocated logical rpis. */ 1968 if (phba->sli_rev < LPFC_SLI_REV4) 1969 ndlp->nlp_rpi = mb->un.varWords[0]; 1970 1971 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1972 1973 /* Only if we are not a fabric nport do we issue PRLI */ 1974 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1975 "3066 RegLogin Complete on x%x x%x x%x\n", 1976 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 1977 if (!(ndlp->nlp_type & NLP_FABRIC) && 1978 (phba->nvmet_support == 0)) { 1979 /* The driver supports FCP and NVME concurrently. If the 1980 * ndlp's nlp_fc4_type is still zero, the driver doesn't 1981 * know what PRLI to send yet. Figure that out now and 1982 * call PRLI depending on the outcome. 1983 */ 1984 if (vport->fc_flag & FC_PT2PT) { 1985 /* If we are pt2pt, there is no Fabric to determine 1986 * the FC4 type of the remote nport. So if NVME 1987 * is configured try it. 1988 */ 1989 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1990 if ((!(vport->fc_flag & FC_PT2PT_NO_NVME)) && 1991 (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH || 1992 vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1993 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1994 /* We need to update the localport also */ 1995 lpfc_nvme_update_localport(vport); 1996 } 1997 1998 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 1999 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 2000 2001 } else if (ndlp->nlp_fc4_type == 0) { 2002 /* If we are only configured for FCP, the driver 2003 * should just issue PRLI for FCP. Otherwise issue 2004 * GFT_ID to determine if remote port supports NVME. 2005 */ 2006 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 2007 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0, 2008 ndlp->nlp_DID); 2009 return ndlp->nlp_state; 2010 } 2011 ndlp->nlp_fc4_type = NLP_FC4_FCP; 2012 } 2013 2014 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2015 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 2016 if (lpfc_issue_els_prli(vport, ndlp, 0)) { 2017 lpfc_issue_els_logo(vport, ndlp, 0); 2018 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2019 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2020 } 2021 } else { 2022 if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support) 2023 phba->targetport->port_id = vport->fc_myDID; 2024 2025 /* Only Fabric ports should transition. NVME target 2026 * must complete PRLI. 2027 */ 2028 if (ndlp->nlp_type & NLP_FABRIC) { 2029 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2030 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2031 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2032 } 2033 } 2034 return ndlp->nlp_state; 2035 } 2036 2037 static uint32_t 2038 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 2039 struct lpfc_nodelist *ndlp, 2040 void *arg, 2041 uint32_t evt) 2042 { 2043 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2044 spin_lock_irq(&ndlp->lock); 2045 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2046 spin_unlock_irq(&ndlp->lock); 2047 return ndlp->nlp_state; 2048 } else { 2049 lpfc_drop_node(vport, ndlp); 2050 return NLP_STE_FREED_NODE; 2051 } 2052 } 2053 2054 static uint32_t 2055 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 2056 struct lpfc_nodelist *ndlp, 2057 void *arg, 2058 uint32_t evt) 2059 { 2060 /* Don't do anything that will mess up processing of the 2061 * previous RSCN. 2062 */ 2063 if (vport->fc_flag & FC_RSCN_DEFERRED) 2064 return ndlp->nlp_state; 2065 2066 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2067 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2068 spin_lock_irq(&ndlp->lock); 2069 2070 /* If we are a target we won't immediately transition into PRLI, 2071 * so if REG_LOGIN already completed we don't need to ignore it. 2072 */ 2073 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) || 2074 !vport->phba->nvmet_support) 2075 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 2076 2077 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2078 spin_unlock_irq(&ndlp->lock); 2079 lpfc_disc_set_adisc(vport, ndlp); 2080 return ndlp->nlp_state; 2081 } 2082 2083 static uint32_t 2084 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2085 void *arg, uint32_t evt) 2086 { 2087 struct lpfc_iocbq *cmdiocb; 2088 2089 cmdiocb = (struct lpfc_iocbq *) arg; 2090 2091 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2092 return ndlp->nlp_state; 2093 } 2094 2095 static uint32_t 2096 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2097 void *arg, uint32_t evt) 2098 { 2099 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2100 2101 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2102 return ndlp->nlp_state; 2103 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2104 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2105 return ndlp->nlp_state; 2106 } 2107 2108 static uint32_t 2109 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2110 void *arg, uint32_t evt) 2111 { 2112 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2113 2114 /* Software abort outstanding PRLI before sending acc */ 2115 lpfc_els_abort(vport->phba, ndlp); 2116 2117 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2118 return ndlp->nlp_state; 2119 } 2120 2121 static uint32_t 2122 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2123 void *arg, uint32_t evt) 2124 { 2125 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2126 2127 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2128 return ndlp->nlp_state; 2129 } 2130 2131 /* This routine is envoked when we rcv a PRLO request from a nport 2132 * we are logged into. We should send back a PRLO rsp setting the 2133 * appropriate bits. 2134 * NEXT STATE = PRLI_ISSUE 2135 */ 2136 static uint32_t 2137 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2138 void *arg, uint32_t evt) 2139 { 2140 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2141 2142 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2143 return ndlp->nlp_state; 2144 } 2145 2146 static uint32_t 2147 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2148 void *arg, uint32_t evt) 2149 { 2150 struct lpfc_iocbq *cmdiocb, *rspiocb; 2151 struct lpfc_hba *phba = vport->phba; 2152 PRLI *npr; 2153 struct lpfc_nvme_prli *nvpr; 2154 void *temp_ptr; 2155 u32 ulp_status; 2156 bool acc_imode_sps = false; 2157 2158 cmdiocb = (struct lpfc_iocbq *) arg; 2159 rspiocb = cmdiocb->rsp_iocb; 2160 2161 ulp_status = get_job_ulpstatus(phba, rspiocb); 2162 2163 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 2164 * format is different so NULL the two PRLI types so that the 2165 * driver correctly gets the correct context. 2166 */ 2167 npr = NULL; 2168 nvpr = NULL; 2169 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 2170 if (cmdiocb->cmd_flag & LPFC_PRLI_FCP_REQ) 2171 npr = (PRLI *) temp_ptr; 2172 else if (cmdiocb->cmd_flag & LPFC_PRLI_NVME_REQ) 2173 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 2174 2175 if (ulp_status) { 2176 if ((vport->port_type == LPFC_NPIV_PORT) && 2177 vport->cfg_restrict_login) { 2178 goto out; 2179 } 2180 2181 /* Adjust the nlp_type accordingly if the PRLI failed */ 2182 if (npr) 2183 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2184 if (nvpr) 2185 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 2186 2187 /* We can't set the DSM state till BOTH PRLIs complete */ 2188 goto out_err; 2189 } 2190 2191 if (npr && npr->prliType == PRLI_FCP_TYPE) { 2192 lpfc_printf_vlog(vport, KERN_INFO, 2193 LOG_ELS | LOG_NODE | LOG_DISCOVERY, 2194 "6028 FCP NPR PRLI Cmpl Init %d Target %d " 2195 "EIP %d AccCode x%x\n", 2196 npr->initiatorFunc, npr->targetFunc, 2197 npr->estabImagePair, npr->acceptRspCode); 2198 2199 if (npr->acceptRspCode == PRLI_INV_SRV_PARM) { 2200 /* Strict initiators don't establish an image pair. */ 2201 if (npr->initiatorFunc && !npr->targetFunc && 2202 !npr->estabImagePair) 2203 acc_imode_sps = true; 2204 } 2205 2206 if (npr->acceptRspCode == PRLI_REQ_EXECUTED || acc_imode_sps) { 2207 if (npr->initiatorFunc) 2208 ndlp->nlp_type |= NLP_FCP_INITIATOR; 2209 if (npr->targetFunc) { 2210 ndlp->nlp_type |= NLP_FCP_TARGET; 2211 if (npr->writeXferRdyDis) 2212 ndlp->nlp_flag |= NLP_FIRSTBURST; 2213 } 2214 if (npr->Retry) 2215 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 2216 } 2217 } else if (nvpr && 2218 (bf_get_be32(prli_acc_rsp_code, nvpr) == 2219 PRLI_REQ_EXECUTED) && 2220 (bf_get_be32(prli_type_code, nvpr) == 2221 PRLI_NVME_TYPE)) { 2222 2223 /* Complete setting up the remote ndlp personality. */ 2224 if (bf_get_be32(prli_init, nvpr)) 2225 ndlp->nlp_type |= NLP_NVME_INITIATOR; 2226 2227 if (phba->nsler && bf_get_be32(prli_nsler, nvpr) && 2228 bf_get_be32(prli_conf, nvpr)) 2229 2230 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 2231 else 2232 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 2233 2234 /* Target driver cannot solicit NVME FB. */ 2235 if (bf_get_be32(prli_tgt, nvpr)) { 2236 /* Complete the nvme target roles. The transport 2237 * needs to know if the rport is capable of 2238 * discovery in addition to its role. 2239 */ 2240 ndlp->nlp_type |= NLP_NVME_TARGET; 2241 if (bf_get_be32(prli_disc, nvpr)) 2242 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 2243 2244 /* 2245 * If prli_fba is set, the Target supports FirstBurst. 2246 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 2247 * otherwise it defines the actual size supported by 2248 * the NVME Target. 2249 */ 2250 if ((bf_get_be32(prli_fba, nvpr) == 1) && 2251 (phba->cfg_nvme_enable_fb) && 2252 (!phba->nvmet_support)) { 2253 /* Both sides support FB. The target's first 2254 * burst size is a 512 byte encoded value. 2255 */ 2256 ndlp->nlp_flag |= NLP_FIRSTBURST; 2257 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2258 nvpr); 2259 2260 /* Expressed in units of 512 bytes */ 2261 if (ndlp->nvme_fb_size) 2262 ndlp->nvme_fb_size <<= 2263 LPFC_NVME_FB_SHIFT; 2264 else 2265 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2266 } 2267 } 2268 2269 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2270 "6029 NVME PRLI Cmpl w1 x%08x " 2271 "w4 x%08x w5 x%08x flag x%x, " 2272 "fcp_info x%x nlp_type x%x\n", 2273 be32_to_cpu(nvpr->word1), 2274 be32_to_cpu(nvpr->word4), 2275 be32_to_cpu(nvpr->word5), 2276 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2277 ndlp->nlp_type); 2278 } 2279 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2280 (vport->port_type == LPFC_NPIV_PORT) && 2281 vport->cfg_restrict_login) { 2282 out: 2283 spin_lock_irq(&ndlp->lock); 2284 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 2285 spin_unlock_irq(&ndlp->lock); 2286 lpfc_issue_els_logo(vport, ndlp, 0); 2287 2288 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2289 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2290 return ndlp->nlp_state; 2291 } 2292 2293 out_err: 2294 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2295 * are complete. 2296 */ 2297 if (ndlp->fc4_prli_sent == 0) { 2298 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2299 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2300 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2301 else if (ndlp->nlp_type & 2302 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2303 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2304 } else 2305 lpfc_printf_vlog(vport, 2306 KERN_INFO, LOG_ELS, 2307 "3067 PRLI's still outstanding " 2308 "on x%06x - count %d, Pend Node Mode " 2309 "transition...\n", 2310 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2311 2312 return ndlp->nlp_state; 2313 } 2314 2315 /*! lpfc_device_rm_prli_issue 2316 * 2317 * \pre 2318 * \post 2319 * \param phba 2320 * \param ndlp 2321 * \param arg 2322 * \param evt 2323 * \return uint32_t 2324 * 2325 * \b Description: 2326 * This routine is envoked when we a request to remove a nport we are in the 2327 * process of PRLIing. We should software abort outstanding prli, unreg 2328 * login, send a logout. We will change node state to UNUSED_NODE, put it 2329 * on plogi list so it can be freed when LOGO completes. 2330 * 2331 */ 2332 2333 static uint32_t 2334 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2335 void *arg, uint32_t evt) 2336 { 2337 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2338 spin_lock_irq(&ndlp->lock); 2339 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2340 spin_unlock_irq(&ndlp->lock); 2341 return ndlp->nlp_state; 2342 } else { 2343 /* software abort outstanding PLOGI */ 2344 lpfc_els_abort(vport->phba, ndlp); 2345 2346 lpfc_drop_node(vport, ndlp); 2347 return NLP_STE_FREED_NODE; 2348 } 2349 } 2350 2351 2352 /*! lpfc_device_recov_prli_issue 2353 * 2354 * \pre 2355 * \post 2356 * \param phba 2357 * \param ndlp 2358 * \param arg 2359 * \param evt 2360 * \return uint32_t 2361 * 2362 * \b Description: 2363 * The routine is envoked when the state of a device is unknown, like 2364 * during a link down. We should remove the nodelist entry from the 2365 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2366 * outstanding PRLI command, then free the node entry. 2367 */ 2368 static uint32_t 2369 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2370 struct lpfc_nodelist *ndlp, 2371 void *arg, 2372 uint32_t evt) 2373 { 2374 struct lpfc_hba *phba = vport->phba; 2375 2376 /* Don't do anything that will mess up processing of the 2377 * previous RSCN. 2378 */ 2379 if (vport->fc_flag & FC_RSCN_DEFERRED) 2380 return ndlp->nlp_state; 2381 2382 /* software abort outstanding PRLI */ 2383 lpfc_els_abort(phba, ndlp); 2384 2385 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2386 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2387 spin_lock_irq(&ndlp->lock); 2388 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2389 spin_unlock_irq(&ndlp->lock); 2390 lpfc_disc_set_adisc(vport, ndlp); 2391 return ndlp->nlp_state; 2392 } 2393 2394 static uint32_t 2395 lpfc_rcv_plogi_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_prli_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 struct ls_rjt stat; 2414 2415 memset(&stat, 0, sizeof(struct ls_rjt)); 2416 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2417 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2418 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2419 return ndlp->nlp_state; 2420 } 2421 2422 static uint32_t 2423 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2424 void *arg, uint32_t evt) 2425 { 2426 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2427 2428 spin_lock_irq(&ndlp->lock); 2429 ndlp->nlp_flag |= NLP_LOGO_ACC; 2430 spin_unlock_irq(&ndlp->lock); 2431 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2432 return ndlp->nlp_state; 2433 } 2434 2435 static uint32_t 2436 lpfc_rcv_padisc_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_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2451 void *arg, uint32_t evt) 2452 { 2453 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2454 struct ls_rjt stat; 2455 2456 memset(&stat, 0, sizeof(struct ls_rjt)); 2457 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2458 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2459 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2460 return ndlp->nlp_state; 2461 } 2462 2463 static uint32_t 2464 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2465 void *arg, uint32_t evt) 2466 { 2467 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2468 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2469 spin_lock_irq(&ndlp->lock); 2470 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2471 spin_unlock_irq(&ndlp->lock); 2472 lpfc_disc_set_adisc(vport, ndlp); 2473 return ndlp->nlp_state; 2474 } 2475 2476 static uint32_t 2477 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2478 void *arg, uint32_t evt) 2479 { 2480 /* 2481 * DevLoss has timed out and is calling for Device Remove. 2482 * In this case, abort the LOGO and cleanup the ndlp 2483 */ 2484 2485 lpfc_unreg_rpi(vport, ndlp); 2486 /* software abort outstanding PLOGI */ 2487 lpfc_els_abort(vport->phba, ndlp); 2488 lpfc_drop_node(vport, ndlp); 2489 return NLP_STE_FREED_NODE; 2490 } 2491 2492 static uint32_t 2493 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2494 struct lpfc_nodelist *ndlp, 2495 void *arg, uint32_t evt) 2496 { 2497 /* 2498 * Device Recovery events have no meaning for a node with a LOGO 2499 * outstanding. The LOGO has to complete first and handle the 2500 * node from that point. 2501 */ 2502 return ndlp->nlp_state; 2503 } 2504 2505 static uint32_t 2506 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2507 void *arg, uint32_t evt) 2508 { 2509 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2510 2511 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2512 return ndlp->nlp_state; 2513 } 2514 2515 static uint32_t 2516 lpfc_rcv_prli_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 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2522 return ndlp->nlp_state; 2523 2524 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2525 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2526 return ndlp->nlp_state; 2527 } 2528 2529 static uint32_t 2530 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2531 void *arg, uint32_t evt) 2532 { 2533 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2534 2535 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2536 return ndlp->nlp_state; 2537 } 2538 2539 static uint32_t 2540 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2541 void *arg, uint32_t evt) 2542 { 2543 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2544 2545 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2546 return ndlp->nlp_state; 2547 } 2548 2549 static uint32_t 2550 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2551 void *arg, uint32_t evt) 2552 { 2553 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2554 2555 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2556 return ndlp->nlp_state; 2557 } 2558 2559 static uint32_t 2560 lpfc_device_rm_unmap_node(struct lpfc_vport *vport, 2561 struct lpfc_nodelist *ndlp, 2562 void *arg, 2563 uint32_t evt) 2564 { 2565 lpfc_drop_node(vport, ndlp); 2566 return NLP_STE_FREED_NODE; 2567 } 2568 2569 static uint32_t 2570 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2571 struct lpfc_nodelist *ndlp, 2572 void *arg, 2573 uint32_t evt) 2574 { 2575 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2576 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2577 spin_lock_irq(&ndlp->lock); 2578 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2579 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2580 spin_unlock_irq(&ndlp->lock); 2581 lpfc_disc_set_adisc(vport, ndlp); 2582 2583 return ndlp->nlp_state; 2584 } 2585 2586 static uint32_t 2587 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2588 void *arg, uint32_t evt) 2589 { 2590 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2591 2592 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2593 return ndlp->nlp_state; 2594 } 2595 2596 static uint32_t 2597 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2598 void *arg, uint32_t evt) 2599 { 2600 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2601 2602 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2603 return ndlp->nlp_state; 2604 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2605 return ndlp->nlp_state; 2606 } 2607 2608 static uint32_t 2609 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2610 void *arg, uint32_t evt) 2611 { 2612 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2613 2614 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2615 return ndlp->nlp_state; 2616 } 2617 2618 static uint32_t 2619 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2620 struct lpfc_nodelist *ndlp, 2621 void *arg, uint32_t evt) 2622 { 2623 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2624 2625 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2626 return ndlp->nlp_state; 2627 } 2628 2629 static uint32_t 2630 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2631 void *arg, uint32_t evt) 2632 { 2633 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2634 2635 /* flush the target */ 2636 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2637 2638 /* Send PRLO_ACC */ 2639 spin_lock_irq(&ndlp->lock); 2640 ndlp->nlp_flag |= NLP_LOGO_ACC; 2641 spin_unlock_irq(&ndlp->lock); 2642 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2643 2644 /* Save ELS_CMD_PRLO as the last elscmd and then set to NPR. 2645 * lpfc_cmpl_els_logo_acc is expected to restart discovery. 2646 */ 2647 ndlp->nlp_last_elscmd = ELS_CMD_PRLO; 2648 ndlp->nlp_prev_state = ndlp->nlp_state; 2649 2650 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_ELS | LOG_DISCOVERY, 2651 "3422 DID x%06x nflag x%x lastels x%x ref cnt %u\n", 2652 ndlp->nlp_DID, ndlp->nlp_flag, 2653 ndlp->nlp_last_elscmd, 2654 kref_read(&ndlp->kref)); 2655 2656 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2657 2658 return ndlp->nlp_state; 2659 } 2660 2661 static uint32_t 2662 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2663 struct lpfc_nodelist *ndlp, 2664 void *arg, 2665 uint32_t evt) 2666 { 2667 lpfc_disc_set_adisc(vport, ndlp); 2668 2669 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2670 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2671 spin_lock_irq(&ndlp->lock); 2672 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2673 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2674 spin_unlock_irq(&ndlp->lock); 2675 return ndlp->nlp_state; 2676 } 2677 2678 static uint32_t 2679 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2680 void *arg, uint32_t evt) 2681 { 2682 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2683 2684 /* Ignore PLOGI if we have an outstanding LOGO */ 2685 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2686 return ndlp->nlp_state; 2687 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2688 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2689 spin_lock_irq(&ndlp->lock); 2690 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2691 spin_unlock_irq(&ndlp->lock); 2692 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2693 /* send PLOGI immediately, move to PLOGI issue state */ 2694 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2695 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2696 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2697 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2698 } 2699 } 2700 return ndlp->nlp_state; 2701 } 2702 2703 static uint32_t 2704 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2705 void *arg, uint32_t evt) 2706 { 2707 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2708 struct ls_rjt stat; 2709 2710 memset(&stat, 0, sizeof (struct ls_rjt)); 2711 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2712 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2713 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2714 2715 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2716 /* 2717 * ADISC nodes will be handled in regular discovery path after 2718 * receiving response from NS. 2719 * 2720 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2721 */ 2722 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2723 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2724 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2725 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2726 } 2727 } 2728 return ndlp->nlp_state; 2729 } 2730 2731 static uint32_t 2732 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2733 void *arg, uint32_t evt) 2734 { 2735 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2736 2737 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2738 return ndlp->nlp_state; 2739 } 2740 2741 static uint32_t 2742 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2743 void *arg, uint32_t evt) 2744 { 2745 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2746 2747 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2748 /* 2749 * Do not start discovery if discovery is about to start 2750 * or discovery in progress for this node. Starting discovery 2751 * here will affect the counting of discovery threads. 2752 */ 2753 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2754 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2755 /* 2756 * ADISC nodes will be handled in regular discovery path after 2757 * receiving response from NS. 2758 * 2759 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2760 */ 2761 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2762 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2763 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2764 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2765 } 2766 } 2767 return ndlp->nlp_state; 2768 } 2769 2770 static uint32_t 2771 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2772 void *arg, uint32_t evt) 2773 { 2774 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2775 2776 spin_lock_irq(&ndlp->lock); 2777 ndlp->nlp_flag |= NLP_LOGO_ACC; 2778 spin_unlock_irq(&ndlp->lock); 2779 2780 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2781 2782 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2783 mod_timer(&ndlp->nlp_delayfunc, 2784 jiffies + msecs_to_jiffies(1000 * 1)); 2785 spin_lock_irq(&ndlp->lock); 2786 ndlp->nlp_flag |= NLP_DELAY_TMO; 2787 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2788 spin_unlock_irq(&ndlp->lock); 2789 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2790 } else { 2791 spin_lock_irq(&ndlp->lock); 2792 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2793 spin_unlock_irq(&ndlp->lock); 2794 } 2795 return ndlp->nlp_state; 2796 } 2797 2798 static uint32_t 2799 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2800 void *arg, uint32_t evt) 2801 { 2802 struct lpfc_hba *phba = vport->phba; 2803 struct lpfc_iocbq *cmdiocb, *rspiocb; 2804 u32 ulp_status; 2805 2806 cmdiocb = (struct lpfc_iocbq *) arg; 2807 rspiocb = cmdiocb->rsp_iocb; 2808 2809 ulp_status = get_job_ulpstatus(phba, rspiocb); 2810 2811 if (ulp_status) 2812 return NLP_STE_FREED_NODE; 2813 2814 return ndlp->nlp_state; 2815 } 2816 2817 static uint32_t 2818 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2819 void *arg, uint32_t evt) 2820 { 2821 struct lpfc_hba *phba = vport->phba; 2822 struct lpfc_iocbq *cmdiocb, *rspiocb; 2823 u32 ulp_status; 2824 2825 cmdiocb = (struct lpfc_iocbq *) arg; 2826 rspiocb = cmdiocb->rsp_iocb; 2827 2828 ulp_status = get_job_ulpstatus(phba, rspiocb); 2829 2830 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2831 lpfc_drop_node(vport, ndlp); 2832 return NLP_STE_FREED_NODE; 2833 } 2834 return ndlp->nlp_state; 2835 } 2836 2837 static uint32_t 2838 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2839 void *arg, uint32_t evt) 2840 { 2841 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2842 2843 /* For the fabric port just clear the fc flags. */ 2844 if (ndlp->nlp_DID == Fabric_DID) { 2845 spin_lock_irq(shost->host_lock); 2846 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2847 spin_unlock_irq(shost->host_lock); 2848 } 2849 lpfc_unreg_rpi(vport, ndlp); 2850 return ndlp->nlp_state; 2851 } 2852 2853 static uint32_t 2854 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2855 void *arg, uint32_t evt) 2856 { 2857 struct lpfc_hba *phba = vport->phba; 2858 struct lpfc_iocbq *cmdiocb, *rspiocb; 2859 u32 ulp_status; 2860 2861 cmdiocb = (struct lpfc_iocbq *) arg; 2862 rspiocb = cmdiocb->rsp_iocb; 2863 2864 ulp_status = get_job_ulpstatus(phba, rspiocb); 2865 2866 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2867 lpfc_drop_node(vport, ndlp); 2868 return NLP_STE_FREED_NODE; 2869 } 2870 return ndlp->nlp_state; 2871 } 2872 2873 static uint32_t 2874 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2875 struct lpfc_nodelist *ndlp, 2876 void *arg, uint32_t evt) 2877 { 2878 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2879 MAILBOX_t *mb = &pmb->u.mb; 2880 2881 if (!mb->mbxStatus) { 2882 /* SLI4 ports have preallocated logical rpis. */ 2883 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2884 ndlp->nlp_rpi = mb->un.varWords[0]; 2885 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2886 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 2887 lpfc_unreg_rpi(vport, ndlp); 2888 } 2889 } else { 2890 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2891 lpfc_drop_node(vport, ndlp); 2892 return NLP_STE_FREED_NODE; 2893 } 2894 } 2895 return ndlp->nlp_state; 2896 } 2897 2898 static uint32_t 2899 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2900 void *arg, uint32_t evt) 2901 { 2902 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2903 spin_lock_irq(&ndlp->lock); 2904 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2905 spin_unlock_irq(&ndlp->lock); 2906 return ndlp->nlp_state; 2907 } 2908 lpfc_drop_node(vport, ndlp); 2909 return NLP_STE_FREED_NODE; 2910 } 2911 2912 static uint32_t 2913 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2914 void *arg, uint32_t evt) 2915 { 2916 /* Don't do anything that will mess up processing of the 2917 * previous RSCN. 2918 */ 2919 if (vport->fc_flag & FC_RSCN_DEFERRED) 2920 return ndlp->nlp_state; 2921 2922 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2923 spin_lock_irq(&ndlp->lock); 2924 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2925 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2926 spin_unlock_irq(&ndlp->lock); 2927 return ndlp->nlp_state; 2928 } 2929 2930 2931 /* This next section defines the NPort Discovery State Machine */ 2932 2933 /* There are 4 different double linked lists nodelist entries can reside on. 2934 * The plogi list and adisc list are used when Link Up discovery or RSCN 2935 * processing is needed. Each list holds the nodes that we will send PLOGI 2936 * or ADISC on. These lists will keep track of what nodes will be effected 2937 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2938 * The unmapped_list will contain all nodes that we have successfully logged 2939 * into at the Fibre Channel level. The mapped_list will contain all nodes 2940 * that are mapped FCP targets. 2941 */ 2942 /* 2943 * The bind list is a list of undiscovered (potentially non-existent) nodes 2944 * that we have saved binding information on. This information is used when 2945 * nodes transition from the unmapped to the mapped list. 2946 */ 2947 /* For UNUSED_NODE state, the node has just been allocated . 2948 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2949 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2950 * and put on the unmapped list. For ADISC processing, the node is taken off 2951 * the ADISC list and placed on either the mapped or unmapped list (depending 2952 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2953 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2954 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2955 * node, the node is taken off the unmapped list. The binding list is checked 2956 * for a valid binding, or a binding is automatically assigned. If binding 2957 * assignment is unsuccessful, the node is left on the unmapped list. If 2958 * binding assignment is successful, the associated binding list entry (if 2959 * any) is removed, and the node is placed on the mapped list. 2960 */ 2961 /* 2962 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2963 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2964 * expire, all effected nodes will receive a DEVICE_RM event. 2965 */ 2966 /* 2967 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2968 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2969 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2970 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2971 * we will first process the ADISC list. 32 entries are processed initially and 2972 * ADISC is initited for each one. Completions / Events for each node are 2973 * funnelled thru the state machine. As each node finishes ADISC processing, it 2974 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2975 * waiting, and the ADISC list count is identically 0, then we are done. For 2976 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2977 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2978 * list. 32 entries are processed initially and PLOGI is initited for each one. 2979 * Completions / Events for each node are funnelled thru the state machine. As 2980 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2981 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2982 * indentically 0, then we are done. We have now completed discovery / RSCN 2983 * handling. Upon completion, ALL nodes should be on either the mapped or 2984 * unmapped lists. 2985 */ 2986 2987 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2988 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2989 /* Action routine Event Current State */ 2990 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2991 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2992 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2993 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2994 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2995 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2996 lpfc_disc_illegal, /* CMPL_PLOGI */ 2997 lpfc_disc_illegal, /* CMPL_PRLI */ 2998 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2999 lpfc_disc_illegal, /* CMPL_ADISC */ 3000 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3001 lpfc_device_rm_unused_node, /* DEVICE_RM */ 3002 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 3003 3004 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 3005 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 3006 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 3007 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 3008 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 3009 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 3010 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 3011 lpfc_disc_illegal, /* CMPL_PRLI */ 3012 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 3013 lpfc_disc_illegal, /* CMPL_ADISC */ 3014 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 3015 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 3016 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 3017 3018 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 3019 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 3020 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 3021 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 3022 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 3023 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 3024 lpfc_disc_illegal, /* CMPL_PLOGI */ 3025 lpfc_disc_illegal, /* CMPL_PRLI */ 3026 lpfc_disc_illegal, /* CMPL_LOGO */ 3027 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 3028 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3029 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 3030 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 3031 3032 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 3033 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 3034 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 3035 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 3036 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 3037 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 3038 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3039 lpfc_disc_illegal, /* CMPL_PRLI */ 3040 lpfc_disc_illegal, /* CMPL_LOGO */ 3041 lpfc_disc_illegal, /* CMPL_ADISC */ 3042 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 3043 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 3044 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 3045 3046 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 3047 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 3048 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 3049 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 3050 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 3051 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 3052 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3053 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 3054 lpfc_disc_illegal, /* CMPL_LOGO */ 3055 lpfc_disc_illegal, /* CMPL_ADISC */ 3056 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3057 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 3058 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 3059 3060 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 3061 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 3062 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 3063 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 3064 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 3065 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 3066 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3067 lpfc_disc_illegal, /* CMPL_PRLI */ 3068 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 3069 lpfc_disc_illegal, /* CMPL_ADISC */ 3070 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3071 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 3072 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 3073 3074 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 3075 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 3076 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 3077 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 3078 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 3079 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 3080 lpfc_disc_illegal, /* CMPL_PLOGI */ 3081 lpfc_disc_illegal, /* CMPL_PRLI */ 3082 lpfc_disc_illegal, /* CMPL_LOGO */ 3083 lpfc_disc_illegal, /* CMPL_ADISC */ 3084 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3085 lpfc_device_rm_unmap_node, /* DEVICE_RM */ 3086 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 3087 3088 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 3089 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 3090 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 3091 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 3092 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 3093 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 3094 lpfc_disc_illegal, /* CMPL_PLOGI */ 3095 lpfc_disc_illegal, /* CMPL_PRLI */ 3096 lpfc_disc_illegal, /* CMPL_LOGO */ 3097 lpfc_disc_illegal, /* CMPL_ADISC */ 3098 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3099 lpfc_disc_illegal, /* DEVICE_RM */ 3100 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 3101 3102 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 3103 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 3104 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 3105 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 3106 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 3107 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 3108 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 3109 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 3110 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 3111 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 3112 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 3113 lpfc_device_rm_npr_node, /* DEVICE_RM */ 3114 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 3115 }; 3116 3117 int 3118 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3119 void *arg, uint32_t evt) 3120 { 3121 uint32_t cur_state, rc; 3122 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 3123 uint32_t); 3124 uint32_t got_ndlp = 0; 3125 uint32_t data1; 3126 3127 if (lpfc_nlp_get(ndlp)) 3128 got_ndlp = 1; 3129 3130 cur_state = ndlp->nlp_state; 3131 3132 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3133 ((uint32_t)ndlp->nlp_type)); 3134 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 3135 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3136 "0211 DSM in event x%x on NPort x%x in " 3137 "state %d rpi x%x Data: x%x x%x\n", 3138 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, 3139 ndlp->nlp_flag, data1); 3140 3141 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3142 "DSM in: evt:%d ste:%d did:x%x", 3143 evt, cur_state, ndlp->nlp_DID); 3144 3145 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 3146 rc = (func) (vport, ndlp, arg, evt); 3147 3148 /* DSM out state <rc> on NPort <nlp_DID> */ 3149 if (got_ndlp) { 3150 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3151 ((uint32_t)ndlp->nlp_type)); 3152 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3153 "0212 DSM out state %d on NPort x%x " 3154 "rpi x%x Data: x%x x%x\n", 3155 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag, 3156 data1); 3157 3158 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3159 "DSM out: ste:%d did:x%x flg:x%x", 3160 rc, ndlp->nlp_DID, ndlp->nlp_flag); 3161 /* Decrement the ndlp reference count held for this function */ 3162 lpfc_nlp_put(ndlp); 3163 } else { 3164 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3165 "0213 DSM out state %d on NPort free\n", rc); 3166 3167 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3168 "DSM out: ste:%d did:x%x flg:x%x", 3169 rc, 0, 0); 3170 } 3171 3172 return rc; 3173 } 3174