1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2024 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->ctx_u.save_iocb; 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%lx\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_INFO, LOG_ELS, 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 (test_bit(FC_PT2PT, &vport->fc_flag) && 468 !test_bit(FC_PT2PT_PLOGI, &vport->fc_flag)) { 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 test_bit(FC_FABRIC, &vport->fc_flag)) { 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->ctx_u.save_iocb = 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 = mboxq->ctx_u.save_iocb; 686 ndlp = 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 lpfc_hba *phba = vport->phba; 808 struct lpfc_vport **vports; 809 int i, active_vlink_present = 0 ; 810 811 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 812 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 813 * PLOGIs during LOGO storms from a device. 814 */ 815 spin_lock_irq(&ndlp->lock); 816 ndlp->nlp_flag |= NLP_LOGO_ACC; 817 spin_unlock_irq(&ndlp->lock); 818 if (els_cmd == ELS_CMD_PRLO) 819 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 820 else 821 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 822 823 /* This clause allows the initiator to ACC the LOGO back to the 824 * Fabric Domain Controller. It does deliberately skip all other 825 * steps because some fabrics send RDP requests after logging out 826 * from the initiator. 827 */ 828 if (ndlp->nlp_type & NLP_FABRIC && 829 ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK)) 830 return 0; 831 832 /* Notify transport of connectivity loss to trigger cleanup. */ 833 if (phba->nvmet_support && 834 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 835 lpfc_nvmet_invalidate_host(phba, ndlp); 836 837 if (ndlp->nlp_DID == Fabric_DID) { 838 if (vport->port_state <= LPFC_FDISC || 839 test_bit(FC_PT2PT, &vport->fc_flag)) 840 goto out; 841 lpfc_linkdown_port(vport); 842 set_bit(FC_VPORT_LOGO_RCVD, &vport->fc_flag); 843 vports = lpfc_create_vport_work_array(phba); 844 if (vports) { 845 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 846 i++) { 847 if (!test_bit(FC_VPORT_LOGO_RCVD, 848 &vports[i]->fc_flag) && 849 vports[i]->port_state > LPFC_FDISC) { 850 active_vlink_present = 1; 851 break; 852 } 853 } 854 lpfc_destroy_vport_work_array(phba, vports); 855 } 856 857 /* 858 * Don't re-instantiate if vport is marked for deletion. 859 * If we are here first then vport_delete is going to wait 860 * for discovery to complete. 861 */ 862 if (!test_bit(FC_UNLOADING, &vport->load_flag) && 863 active_vlink_present) { 864 /* 865 * If there are other active VLinks present, 866 * re-instantiate the Vlink using FDISC. 867 */ 868 mod_timer(&ndlp->nlp_delayfunc, 869 jiffies + msecs_to_jiffies(1000)); 870 spin_lock_irq(&ndlp->lock); 871 ndlp->nlp_flag |= NLP_DELAY_TMO; 872 spin_unlock_irq(&ndlp->lock); 873 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 874 vport->port_state = LPFC_FDISC; 875 } else { 876 clear_bit(FC_LOGO_RCVD_DID_CHNG, &phba->pport->fc_flag); 877 lpfc_retry_pport_discovery(phba); 878 } 879 } else { 880 lpfc_printf_vlog(vport, KERN_INFO, 881 LOG_NODE | LOG_ELS | LOG_DISCOVERY, 882 "3203 LOGO recover nport x%06x state x%x " 883 "ntype x%x fc_flag x%lx\n", 884 ndlp->nlp_DID, ndlp->nlp_state, 885 ndlp->nlp_type, vport->fc_flag); 886 887 /* Special cases for rports that recover post LOGO. */ 888 if ((!(ndlp->nlp_type == NLP_FABRIC) && 889 (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) || 890 test_bit(FC_PT2PT, &vport->fc_flag))) || 891 (ndlp->nlp_state >= NLP_STE_ADISC_ISSUE || 892 ndlp->nlp_state <= NLP_STE_PRLI_ISSUE)) { 893 mod_timer(&ndlp->nlp_delayfunc, 894 jiffies + msecs_to_jiffies(1000 * 1)); 895 spin_lock_irq(&ndlp->lock); 896 ndlp->nlp_flag |= NLP_DELAY_TMO; 897 spin_unlock_irq(&ndlp->lock); 898 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 899 lpfc_printf_vlog(vport, KERN_INFO, 900 LOG_NODE | LOG_ELS | LOG_DISCOVERY, 901 "3204 Start nlpdelay on DID x%06x " 902 "nflag x%x lastels x%x ref cnt %u", 903 ndlp->nlp_DID, ndlp->nlp_flag, 904 ndlp->nlp_last_elscmd, 905 kref_read(&ndlp->kref)); 906 } 907 } 908 out: 909 /* Unregister from backend, could have been skipped due to ADISC */ 910 lpfc_nlp_unreg_node(vport, ndlp); 911 912 ndlp->nlp_prev_state = ndlp->nlp_state; 913 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 914 915 spin_lock_irq(&ndlp->lock); 916 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 917 spin_unlock_irq(&ndlp->lock); 918 /* The driver has to wait until the ACC completes before it continues 919 * processing the LOGO. The action will resume in 920 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 921 * unreg_login, the driver waits so the ACC does not get aborted. 922 */ 923 return 0; 924 } 925 926 static uint32_t 927 lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 928 struct lpfc_nodelist *ndlp, 929 struct lpfc_iocbq *cmdiocb) 930 { 931 struct ls_rjt stat; 932 uint32_t *payload; 933 uint32_t cmd; 934 PRLI *npr; 935 936 payload = cmdiocb->cmd_dmabuf->virt; 937 cmd = *payload; 938 npr = (PRLI *)((uint8_t *)payload + sizeof(uint32_t)); 939 940 if (vport->phba->nvmet_support) { 941 /* Must be a NVME PRLI */ 942 if (cmd == ELS_CMD_PRLI) 943 goto out; 944 } else { 945 /* Initiator mode. */ 946 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 947 goto out; 948 949 /* NPIV ports will RJT initiator only functions */ 950 if (vport->port_type == LPFC_NPIV_PORT && 951 npr->initiatorFunc && !npr->targetFunc) 952 goto out; 953 } 954 return 1; 955 out: 956 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 957 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 958 "state x%x flags x%x port_type: x%x " 959 "npr->initfcn: x%x npr->tgtfcn: x%x\n", 960 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 961 ndlp->nlp_flag, vport->port_type, 962 npr->initiatorFunc, npr->targetFunc); 963 memset(&stat, 0, sizeof(struct ls_rjt)); 964 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 965 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 966 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 967 ndlp, NULL); 968 return 0; 969 } 970 971 static void 972 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 973 struct lpfc_iocbq *cmdiocb) 974 { 975 struct lpfc_hba *phba = vport->phba; 976 struct lpfc_dmabuf *pcmd; 977 uint32_t *lp; 978 PRLI *npr; 979 struct fc_rport *rport = ndlp->rport; 980 u32 roles; 981 982 pcmd = cmdiocb->cmd_dmabuf; 983 lp = (uint32_t *)pcmd->virt; 984 npr = (PRLI *)((uint8_t *)lp + sizeof(uint32_t)); 985 986 if ((npr->prliType == PRLI_FCP_TYPE) || 987 (npr->prliType == PRLI_NVME_TYPE)) { 988 if (npr->initiatorFunc) { 989 if (npr->prliType == PRLI_FCP_TYPE) 990 ndlp->nlp_type |= NLP_FCP_INITIATOR; 991 if (npr->prliType == PRLI_NVME_TYPE) 992 ndlp->nlp_type |= NLP_NVME_INITIATOR; 993 } 994 if (npr->targetFunc) { 995 if (npr->prliType == PRLI_FCP_TYPE) 996 ndlp->nlp_type |= NLP_FCP_TARGET; 997 if (npr->prliType == PRLI_NVME_TYPE) 998 ndlp->nlp_type |= NLP_NVME_TARGET; 999 if (npr->writeXferRdyDis) 1000 ndlp->nlp_flag |= NLP_FIRSTBURST; 1001 } 1002 if (npr->Retry && ndlp->nlp_type & 1003 (NLP_FCP_INITIATOR | NLP_FCP_TARGET)) 1004 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 1005 1006 if (npr->Retry && phba->nsler && 1007 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET)) 1008 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 1009 1010 1011 /* If this driver is in nvme target mode, set the ndlp's fc4 1012 * type to NVME provided the PRLI response claims NVME FC4 1013 * type. Target mode does not issue gft_id so doesn't get 1014 * the fc4 type set until now. 1015 */ 1016 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 1017 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1018 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1019 } 1020 1021 /* Fabric Controllers send FCP PRLI as an initiator but should 1022 * not get recognized as FCP type and registered with transport. 1023 */ 1024 if (npr->prliType == PRLI_FCP_TYPE && 1025 !(ndlp->nlp_type & NLP_FABRIC)) 1026 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1027 } 1028 if (rport) { 1029 /* We need to update the rport role values */ 1030 roles = FC_RPORT_ROLE_UNKNOWN; 1031 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 1032 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 1033 if (ndlp->nlp_type & NLP_FCP_TARGET) 1034 roles |= FC_RPORT_ROLE_FCP_TARGET; 1035 1036 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 1037 "rport rolechg: role:x%x did:x%x flg:x%x", 1038 roles, ndlp->nlp_DID, ndlp->nlp_flag); 1039 1040 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1041 fc_remote_port_rolechg(rport, roles); 1042 } 1043 } 1044 1045 static uint32_t 1046 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 1047 { 1048 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 1049 spin_lock_irq(&ndlp->lock); 1050 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1051 spin_unlock_irq(&ndlp->lock); 1052 return 0; 1053 } 1054 1055 if (!test_bit(FC_PT2PT, &vport->fc_flag)) { 1056 /* Check config parameter use-adisc or FCP-2 */ 1057 if (vport->cfg_use_adisc && 1058 (test_bit(FC_RSCN_MODE, &vport->fc_flag) || 1059 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 1060 (ndlp->nlp_type & NLP_FCP_TARGET)))) { 1061 spin_lock_irq(&ndlp->lock); 1062 ndlp->nlp_flag |= NLP_NPR_ADISC; 1063 spin_unlock_irq(&ndlp->lock); 1064 return 1; 1065 } 1066 } 1067 1068 spin_lock_irq(&ndlp->lock); 1069 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1070 spin_unlock_irq(&ndlp->lock); 1071 lpfc_unreg_rpi(vport, ndlp); 1072 return 0; 1073 } 1074 1075 /** 1076 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 1077 * @phba : Pointer to lpfc_hba structure. 1078 * @vport: Pointer to lpfc_vport structure. 1079 * @ndlp: Pointer to lpfc_nodelist structure. 1080 * @rpi : rpi to be release. 1081 * 1082 * This function will send a unreg_login mailbox command to the firmware 1083 * to release a rpi. 1084 **/ 1085 static void 1086 lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, 1087 struct lpfc_nodelist *ndlp, uint16_t rpi) 1088 { 1089 LPFC_MBOXQ_t *pmb; 1090 int rc; 1091 1092 /* If there is already an UNREG in progress for this ndlp, 1093 * no need to queue up another one. 1094 */ 1095 if (ndlp->nlp_flag & NLP_UNREG_INP) { 1096 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1097 "1435 release_rpi SKIP UNREG x%x on " 1098 "NPort x%x deferred x%x flg x%x " 1099 "Data: x%px\n", 1100 ndlp->nlp_rpi, ndlp->nlp_DID, 1101 ndlp->nlp_defer_did, 1102 ndlp->nlp_flag, ndlp); 1103 return; 1104 } 1105 1106 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 1107 GFP_KERNEL); 1108 if (!pmb) 1109 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1110 "2796 mailbox memory allocation failed \n"); 1111 else { 1112 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 1113 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1114 pmb->vport = vport; 1115 pmb->ctx_ndlp = lpfc_nlp_get(ndlp); 1116 if (!pmb->ctx_ndlp) { 1117 mempool_free(pmb, phba->mbox_mem_pool); 1118 return; 1119 } 1120 1121 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 1122 (!test_bit(FC_OFFLINE_MODE, &vport->fc_flag))) 1123 ndlp->nlp_flag |= NLP_UNREG_INP; 1124 1125 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1126 "1437 release_rpi UNREG x%x " 1127 "on NPort x%x flg x%x\n", 1128 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); 1129 1130 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 1131 if (rc == MBX_NOT_FINISHED) { 1132 lpfc_nlp_put(ndlp); 1133 mempool_free(pmb, phba->mbox_mem_pool); 1134 } 1135 } 1136 } 1137 1138 static uint32_t 1139 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1140 void *arg, uint32_t evt) 1141 { 1142 struct lpfc_hba *phba; 1143 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1144 uint16_t rpi; 1145 1146 phba = vport->phba; 1147 /* Release the RPI if reglogin completing */ 1148 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag) && 1149 evt == NLP_EVT_CMPL_REG_LOGIN && !pmb->u.mb.mbxStatus) { 1150 rpi = pmb->u.mb.un.varWords[0]; 1151 lpfc_release_rpi(phba, vport, ndlp, rpi); 1152 } 1153 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1154 "0271 Illegal State Transition: node x%x " 1155 "event x%x, state x%x Data: x%x x%x\n", 1156 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1157 ndlp->nlp_flag); 1158 return ndlp->nlp_state; 1159 } 1160 1161 static uint32_t 1162 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1163 void *arg, uint32_t evt) 1164 { 1165 /* This transition is only legal if we previously 1166 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 1167 * working on the same NPortID, do nothing for this thread 1168 * to stop it. 1169 */ 1170 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 1171 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1172 "0272 Illegal State Transition: node x%x " 1173 "event x%x, state x%x Data: x%x x%x\n", 1174 ndlp->nlp_DID, evt, ndlp->nlp_state, 1175 ndlp->nlp_rpi, ndlp->nlp_flag); 1176 } 1177 return ndlp->nlp_state; 1178 } 1179 1180 /* Start of Discovery State Machine routines */ 1181 1182 static uint32_t 1183 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1184 void *arg, uint32_t evt) 1185 { 1186 struct lpfc_iocbq *cmdiocb; 1187 1188 cmdiocb = (struct lpfc_iocbq *) arg; 1189 1190 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1191 return ndlp->nlp_state; 1192 } 1193 return NLP_STE_FREED_NODE; 1194 } 1195 1196 static uint32_t 1197 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1198 void *arg, uint32_t evt) 1199 { 1200 lpfc_issue_els_logo(vport, ndlp, 0); 1201 return ndlp->nlp_state; 1202 } 1203 1204 static uint32_t 1205 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1206 void *arg, uint32_t evt) 1207 { 1208 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1209 1210 spin_lock_irq(&ndlp->lock); 1211 ndlp->nlp_flag |= NLP_LOGO_ACC; 1212 spin_unlock_irq(&ndlp->lock); 1213 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1214 1215 return ndlp->nlp_state; 1216 } 1217 1218 static uint32_t 1219 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1220 void *arg, uint32_t evt) 1221 { 1222 return NLP_STE_FREED_NODE; 1223 } 1224 1225 static uint32_t 1226 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1227 void *arg, uint32_t evt) 1228 { 1229 return NLP_STE_FREED_NODE; 1230 } 1231 1232 static uint32_t 1233 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 1234 struct lpfc_nodelist *ndlp, 1235 void *arg, uint32_t evt) 1236 { 1237 return ndlp->nlp_state; 1238 } 1239 1240 static uint32_t 1241 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1242 void *arg, uint32_t evt) 1243 { 1244 struct lpfc_hba *phba = vport->phba; 1245 struct lpfc_iocbq *cmdiocb = arg; 1246 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 1247 uint32_t *lp = (uint32_t *) pcmd->virt; 1248 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1249 struct ls_rjt stat; 1250 int port_cmp; 1251 1252 memset(&stat, 0, sizeof (struct ls_rjt)); 1253 1254 /* For a PLOGI, we only accept if our portname is less 1255 * than the remote portname. 1256 */ 1257 phba->fc_stat.elsLogiCol++; 1258 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1259 sizeof(struct lpfc_name)); 1260 1261 if (port_cmp >= 0) { 1262 /* Reject this request because the remote node will accept 1263 ours */ 1264 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1265 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1266 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1267 NULL); 1268 } else { 1269 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1270 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 1271 (vport->num_disc_nodes)) { 1272 spin_lock_irq(&ndlp->lock); 1273 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1274 spin_unlock_irq(&ndlp->lock); 1275 /* Check if there are more PLOGIs to be sent */ 1276 lpfc_more_plogi(vport); 1277 if (vport->num_disc_nodes == 0) { 1278 clear_bit(FC_NDISC_ACTIVE, &vport->fc_flag); 1279 lpfc_can_disctmo(vport); 1280 lpfc_end_rscn(vport); 1281 } 1282 } 1283 } /* If our portname was less */ 1284 1285 return ndlp->nlp_state; 1286 } 1287 1288 static uint32_t 1289 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1290 void *arg, uint32_t evt) 1291 { 1292 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1293 struct ls_rjt stat; 1294 1295 memset(&stat, 0, sizeof (struct ls_rjt)); 1296 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1297 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1298 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1299 return ndlp->nlp_state; 1300 } 1301 1302 static uint32_t 1303 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1304 void *arg, uint32_t evt) 1305 { 1306 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1307 1308 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1309 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1310 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1311 /* software abort outstanding PLOGI */ 1312 lpfc_els_abort(vport->phba, ndlp); 1313 1314 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1315 return ndlp->nlp_state; 1316 } 1317 1318 static uint32_t 1319 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1320 void *arg, uint32_t evt) 1321 { 1322 struct lpfc_hba *phba = vport->phba; 1323 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1324 1325 /* software abort outstanding PLOGI */ 1326 lpfc_els_abort(phba, ndlp); 1327 1328 if (evt == NLP_EVT_RCV_LOGO) { 1329 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1330 } else { 1331 lpfc_issue_els_logo(vport, ndlp, 0); 1332 } 1333 1334 /* Put ndlp in npr state set plogi timer for 1 sec */ 1335 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1336 spin_lock_irq(&ndlp->lock); 1337 ndlp->nlp_flag |= NLP_DELAY_TMO; 1338 spin_unlock_irq(&ndlp->lock); 1339 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1340 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1341 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1342 1343 return ndlp->nlp_state; 1344 } 1345 1346 static uint32_t 1347 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1348 struct lpfc_nodelist *ndlp, 1349 void *arg, 1350 uint32_t evt) 1351 { 1352 struct lpfc_hba *phba = vport->phba; 1353 struct lpfc_iocbq *cmdiocb, *rspiocb; 1354 struct lpfc_dmabuf *pcmd, *prsp; 1355 uint32_t *lp; 1356 uint32_t vid, flag; 1357 struct serv_parm *sp; 1358 uint32_t ed_tov; 1359 LPFC_MBOXQ_t *mbox; 1360 int rc; 1361 u32 ulp_status; 1362 u32 did; 1363 1364 cmdiocb = (struct lpfc_iocbq *) arg; 1365 rspiocb = cmdiocb->rsp_iocb; 1366 1367 ulp_status = get_job_ulpstatus(phba, rspiocb); 1368 1369 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1370 /* Recovery from PLOGI collision logic */ 1371 return ndlp->nlp_state; 1372 } 1373 1374 if (ulp_status) 1375 goto out; 1376 1377 pcmd = cmdiocb->cmd_dmabuf; 1378 1379 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1380 if (!prsp) 1381 goto out; 1382 1383 lp = (uint32_t *) prsp->virt; 1384 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1385 1386 /* Some switches have FDMI servers returning 0 for WWN */ 1387 if ((ndlp->nlp_DID != FDMI_DID) && 1388 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1389 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1390 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1391 "0142 PLOGI RSP: Invalid WWN.\n"); 1392 goto out; 1393 } 1394 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1395 goto out; 1396 /* PLOGI chkparm OK */ 1397 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1398 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1399 ndlp->nlp_DID, ndlp->nlp_state, 1400 ndlp->nlp_flag, ndlp->nlp_rpi); 1401 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1402 ndlp->nlp_fcp_info |= CLASS2; 1403 else 1404 ndlp->nlp_fcp_info |= CLASS3; 1405 1406 ndlp->nlp_class_sup = 0; 1407 if (sp->cls1.classValid) 1408 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1409 if (sp->cls2.classValid) 1410 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1411 if (sp->cls3.classValid) 1412 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1413 if (sp->cls4.classValid) 1414 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1415 ndlp->nlp_maxframe = 1416 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1417 1418 if (test_bit(FC_PT2PT, &vport->fc_flag) && 1419 test_bit(FC_PT2PT_PLOGI, &vport->fc_flag)) { 1420 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1421 if (sp->cmn.edtovResolution) { 1422 /* E_D_TOV ticks are in nanoseconds */ 1423 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1424 } 1425 1426 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 1427 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1428 sp->cmn.valid_vendor_ver_level) { 1429 vid = be32_to_cpu(sp->un.vv.vid); 1430 flag = be32_to_cpu(sp->un.vv.flags); 1431 if ((vid == LPFC_VV_EMLX_ID) && 1432 (flag & LPFC_VV_SUPPRESS_RSP)) 1433 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 1434 } 1435 1436 /* 1437 * Use the larger EDTOV 1438 * RATOV = 2 * EDTOV for pt-to-pt 1439 */ 1440 if (ed_tov > phba->fc_edtov) 1441 phba->fc_edtov = ed_tov; 1442 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1443 1444 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1445 1446 /* Issue config_link / reg_vfi to account for updated TOV's */ 1447 if (phba->sli_rev == LPFC_SLI_REV4) { 1448 lpfc_issue_reg_vfi(vport); 1449 } else { 1450 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1451 if (!mbox) { 1452 lpfc_printf_vlog(vport, KERN_ERR, 1453 LOG_TRACE_EVENT, 1454 "0133 PLOGI: no memory " 1455 "for config_link " 1456 "Data: x%x x%x x%x x%x\n", 1457 ndlp->nlp_DID, ndlp->nlp_state, 1458 ndlp->nlp_flag, ndlp->nlp_rpi); 1459 goto out; 1460 } 1461 1462 lpfc_config_link(phba, mbox); 1463 1464 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1465 mbox->vport = vport; 1466 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1467 if (rc == MBX_NOT_FINISHED) { 1468 mempool_free(mbox, phba->mbox_mem_pool); 1469 goto out; 1470 } 1471 } 1472 } 1473 1474 lpfc_unreg_rpi(vport, ndlp); 1475 1476 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1477 if (!mbox) { 1478 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1479 "0018 PLOGI: no memory for reg_login " 1480 "Data: x%x x%x x%x x%x\n", 1481 ndlp->nlp_DID, ndlp->nlp_state, 1482 ndlp->nlp_flag, ndlp->nlp_rpi); 1483 goto out; 1484 } 1485 1486 did = get_job_els_rsp64_did(phba, cmdiocb); 1487 1488 if (lpfc_reg_rpi(phba, vport->vpi, did, 1489 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1490 switch (ndlp->nlp_DID) { 1491 case NameServer_DID: 1492 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1493 /* Fabric Controller Node needs these parameters. */ 1494 memcpy(&ndlp->fc_sparam, sp, sizeof(struct serv_parm)); 1495 break; 1496 case FDMI_DID: 1497 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1498 break; 1499 default: 1500 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1501 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1502 } 1503 1504 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1505 if (!mbox->ctx_ndlp) 1506 goto out; 1507 1508 mbox->vport = vport; 1509 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1510 != MBX_NOT_FINISHED) { 1511 lpfc_nlp_set_state(vport, ndlp, 1512 NLP_STE_REG_LOGIN_ISSUE); 1513 return ndlp->nlp_state; 1514 } 1515 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1516 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1517 /* decrement node reference count to the failed mbox 1518 * command 1519 */ 1520 lpfc_nlp_put(ndlp); 1521 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 1522 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1523 "0134 PLOGI: cannot issue reg_login " 1524 "Data: x%x x%x x%x x%x\n", 1525 ndlp->nlp_DID, ndlp->nlp_state, 1526 ndlp->nlp_flag, ndlp->nlp_rpi); 1527 } else { 1528 mempool_free(mbox, phba->mbox_mem_pool); 1529 1530 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1531 "0135 PLOGI: cannot format reg_login " 1532 "Data: x%x x%x x%x x%x\n", 1533 ndlp->nlp_DID, ndlp->nlp_state, 1534 ndlp->nlp_flag, ndlp->nlp_rpi); 1535 } 1536 1537 1538 out: 1539 if (ndlp->nlp_DID == NameServer_DID) { 1540 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1541 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1542 "0261 Cannot Register NameServer login\n"); 1543 } 1544 1545 /* 1546 ** In case the node reference counter does not go to zero, ensure that 1547 ** the stale state for the node is not processed. 1548 */ 1549 1550 ndlp->nlp_prev_state = ndlp->nlp_state; 1551 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1552 return NLP_STE_FREED_NODE; 1553 } 1554 1555 static uint32_t 1556 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1557 void *arg, uint32_t evt) 1558 { 1559 return ndlp->nlp_state; 1560 } 1561 1562 static uint32_t 1563 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1564 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1565 { 1566 struct lpfc_hba *phba; 1567 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1568 MAILBOX_t *mb = &pmb->u.mb; 1569 uint16_t rpi; 1570 1571 phba = vport->phba; 1572 /* Release the RPI */ 1573 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag) && 1574 !mb->mbxStatus) { 1575 rpi = pmb->u.mb.un.varWords[0]; 1576 lpfc_release_rpi(phba, vport, ndlp, rpi); 1577 } 1578 return ndlp->nlp_state; 1579 } 1580 1581 static uint32_t 1582 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1583 void *arg, uint32_t evt) 1584 { 1585 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1586 spin_lock_irq(&ndlp->lock); 1587 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1588 spin_unlock_irq(&ndlp->lock); 1589 return ndlp->nlp_state; 1590 } else { 1591 /* software abort outstanding PLOGI */ 1592 lpfc_els_abort(vport->phba, ndlp); 1593 1594 lpfc_drop_node(vport, ndlp); 1595 return NLP_STE_FREED_NODE; 1596 } 1597 } 1598 1599 static uint32_t 1600 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1601 struct lpfc_nodelist *ndlp, 1602 void *arg, 1603 uint32_t evt) 1604 { 1605 struct lpfc_hba *phba = vport->phba; 1606 1607 /* Don't do anything that will mess up processing of the 1608 * previous RSCN. 1609 */ 1610 if (test_bit(FC_RSCN_DEFERRED, &vport->fc_flag)) 1611 return ndlp->nlp_state; 1612 1613 /* software abort outstanding PLOGI */ 1614 lpfc_els_abort(phba, ndlp); 1615 1616 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1617 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1618 spin_lock_irq(&ndlp->lock); 1619 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1620 spin_unlock_irq(&ndlp->lock); 1621 1622 return ndlp->nlp_state; 1623 } 1624 1625 static uint32_t 1626 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1627 void *arg, uint32_t evt) 1628 { 1629 struct lpfc_hba *phba = vport->phba; 1630 struct lpfc_iocbq *cmdiocb; 1631 1632 /* software abort outstanding ADISC */ 1633 lpfc_els_abort(phba, ndlp); 1634 1635 cmdiocb = (struct lpfc_iocbq *) arg; 1636 1637 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1638 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1639 spin_lock_irq(&ndlp->lock); 1640 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1641 spin_unlock_irq(&ndlp->lock); 1642 if (vport->num_disc_nodes) 1643 lpfc_more_adisc(vport); 1644 } 1645 return ndlp->nlp_state; 1646 } 1647 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1648 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1649 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1650 1651 return ndlp->nlp_state; 1652 } 1653 1654 static uint32_t 1655 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1656 void *arg, uint32_t evt) 1657 { 1658 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1659 1660 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1661 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1662 return ndlp->nlp_state; 1663 } 1664 1665 static uint32_t 1666 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1667 void *arg, uint32_t evt) 1668 { 1669 struct lpfc_hba *phba = vport->phba; 1670 struct lpfc_iocbq *cmdiocb; 1671 1672 cmdiocb = (struct lpfc_iocbq *) arg; 1673 1674 /* software abort outstanding ADISC */ 1675 lpfc_els_abort(phba, ndlp); 1676 1677 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1678 return ndlp->nlp_state; 1679 } 1680 1681 static uint32_t 1682 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1683 struct lpfc_nodelist *ndlp, 1684 void *arg, uint32_t evt) 1685 { 1686 struct lpfc_iocbq *cmdiocb; 1687 1688 cmdiocb = (struct lpfc_iocbq *) arg; 1689 1690 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1691 return ndlp->nlp_state; 1692 } 1693 1694 static uint32_t 1695 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1696 void *arg, uint32_t evt) 1697 { 1698 struct lpfc_iocbq *cmdiocb; 1699 1700 cmdiocb = (struct lpfc_iocbq *) arg; 1701 1702 /* Treat like rcv logo */ 1703 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1704 return ndlp->nlp_state; 1705 } 1706 1707 static uint32_t 1708 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1709 struct lpfc_nodelist *ndlp, 1710 void *arg, uint32_t evt) 1711 { 1712 struct lpfc_hba *phba = vport->phba; 1713 struct lpfc_iocbq *cmdiocb, *rspiocb; 1714 ADISC *ap; 1715 int rc; 1716 u32 ulp_status; 1717 1718 cmdiocb = (struct lpfc_iocbq *) arg; 1719 rspiocb = cmdiocb->rsp_iocb; 1720 1721 ulp_status = get_job_ulpstatus(phba, rspiocb); 1722 1723 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1724 1725 if ((ulp_status) || 1726 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1727 /* 1 sec timeout */ 1728 mod_timer(&ndlp->nlp_delayfunc, 1729 jiffies + msecs_to_jiffies(1000)); 1730 spin_lock_irq(&ndlp->lock); 1731 ndlp->nlp_flag |= NLP_DELAY_TMO; 1732 spin_unlock_irq(&ndlp->lock); 1733 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1734 1735 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1736 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1737 lpfc_unreg_rpi(vport, ndlp); 1738 return ndlp->nlp_state; 1739 } 1740 1741 if (phba->sli_rev == LPFC_SLI_REV4) { 1742 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1743 if (rc) { 1744 /* Stay in state and retry. */ 1745 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1746 return ndlp->nlp_state; 1747 } 1748 } 1749 1750 if (ndlp->nlp_type & NLP_FCP_TARGET) 1751 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1752 1753 if (ndlp->nlp_type & NLP_NVME_TARGET) 1754 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1755 1756 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 1757 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1758 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1759 } else { 1760 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1761 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1762 } 1763 1764 return ndlp->nlp_state; 1765 } 1766 1767 static uint32_t 1768 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1769 void *arg, uint32_t evt) 1770 { 1771 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1772 spin_lock_irq(&ndlp->lock); 1773 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1774 spin_unlock_irq(&ndlp->lock); 1775 return ndlp->nlp_state; 1776 } else { 1777 /* software abort outstanding ADISC */ 1778 lpfc_els_abort(vport->phba, ndlp); 1779 1780 lpfc_drop_node(vport, ndlp); 1781 return NLP_STE_FREED_NODE; 1782 } 1783 } 1784 1785 static uint32_t 1786 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1787 struct lpfc_nodelist *ndlp, 1788 void *arg, 1789 uint32_t evt) 1790 { 1791 struct lpfc_hba *phba = vport->phba; 1792 1793 /* Don't do anything that will mess up processing of the 1794 * previous RSCN. 1795 */ 1796 if (test_bit(FC_RSCN_DEFERRED, &vport->fc_flag)) 1797 return ndlp->nlp_state; 1798 1799 /* software abort outstanding ADISC */ 1800 lpfc_els_abort(phba, ndlp); 1801 1802 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1803 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1804 spin_lock_irq(&ndlp->lock); 1805 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1806 spin_unlock_irq(&ndlp->lock); 1807 lpfc_disc_set_adisc(vport, ndlp); 1808 return ndlp->nlp_state; 1809 } 1810 1811 static uint32_t 1812 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1813 struct lpfc_nodelist *ndlp, 1814 void *arg, 1815 uint32_t evt) 1816 { 1817 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1818 1819 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1820 return ndlp->nlp_state; 1821 } 1822 1823 static uint32_t 1824 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1825 struct lpfc_nodelist *ndlp, 1826 void *arg, 1827 uint32_t evt) 1828 { 1829 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1830 struct ls_rjt stat; 1831 1832 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1833 return ndlp->nlp_state; 1834 } 1835 if (vport->phba->nvmet_support) { 1836 /* NVME Target mode. Handle and respond to the PRLI and 1837 * transition to UNMAPPED provided the RPI has completed 1838 * registration. 1839 */ 1840 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 1841 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1842 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1843 } else { 1844 /* RPI registration has not completed. Reject the PRLI 1845 * to prevent an illegal state transition when the 1846 * rpi registration does complete. 1847 */ 1848 memset(&stat, 0, sizeof(struct ls_rjt)); 1849 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1850 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1851 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1852 ndlp, NULL); 1853 return ndlp->nlp_state; 1854 } 1855 } else { 1856 /* Initiator mode. */ 1857 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1858 } 1859 return ndlp->nlp_state; 1860 } 1861 1862 static uint32_t 1863 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1864 struct lpfc_nodelist *ndlp, 1865 void *arg, 1866 uint32_t evt) 1867 { 1868 struct lpfc_hba *phba = vport->phba; 1869 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1870 LPFC_MBOXQ_t *mb; 1871 LPFC_MBOXQ_t *nextmb; 1872 1873 cmdiocb = (struct lpfc_iocbq *) arg; 1874 1875 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1876 if ((mb = phba->sli.mbox_active)) { 1877 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1878 (ndlp == mb->ctx_ndlp)) { 1879 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1880 lpfc_nlp_put(ndlp); 1881 mb->ctx_ndlp = NULL; 1882 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1883 } 1884 } 1885 1886 spin_lock_irq(&phba->hbalock); 1887 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1888 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1889 (ndlp == mb->ctx_ndlp)) { 1890 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1891 lpfc_nlp_put(ndlp); 1892 list_del(&mb->list); 1893 phba->sli.mboxq_cnt--; 1894 lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_LOCKED); 1895 } 1896 } 1897 spin_unlock_irq(&phba->hbalock); 1898 1899 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1900 return ndlp->nlp_state; 1901 } 1902 1903 static uint32_t 1904 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1905 struct lpfc_nodelist *ndlp, 1906 void *arg, 1907 uint32_t evt) 1908 { 1909 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1910 1911 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1912 return ndlp->nlp_state; 1913 } 1914 1915 static uint32_t 1916 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1917 struct lpfc_nodelist *ndlp, 1918 void *arg, 1919 uint32_t evt) 1920 { 1921 struct lpfc_iocbq *cmdiocb; 1922 1923 cmdiocb = (struct lpfc_iocbq *) arg; 1924 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1925 return ndlp->nlp_state; 1926 } 1927 1928 static uint32_t 1929 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1930 struct lpfc_nodelist *ndlp, 1931 void *arg, 1932 uint32_t evt) 1933 { 1934 struct lpfc_hba *phba = vport->phba; 1935 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1936 MAILBOX_t *mb = &pmb->u.mb; 1937 uint32_t did = mb->un.varWords[1]; 1938 1939 if (mb->mbxStatus) { 1940 /* RegLogin failed */ 1941 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1942 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1943 "x%x\n", 1944 did, mb->mbxStatus, vport->port_state, 1945 mb->un.varRegLogin.vpi, 1946 mb->un.varRegLogin.rpi); 1947 /* 1948 * If RegLogin failed due to lack of HBA resources do not 1949 * retry discovery. 1950 */ 1951 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1952 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1953 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1954 return ndlp->nlp_state; 1955 } 1956 1957 /* Put ndlp in npr state set plogi timer for 1 sec */ 1958 mod_timer(&ndlp->nlp_delayfunc, 1959 jiffies + msecs_to_jiffies(1000 * 1)); 1960 spin_lock_irq(&ndlp->lock); 1961 ndlp->nlp_flag |= NLP_DELAY_TMO; 1962 spin_unlock_irq(&ndlp->lock); 1963 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1964 1965 lpfc_issue_els_logo(vport, ndlp, 0); 1966 return ndlp->nlp_state; 1967 } 1968 1969 /* SLI4 ports have preallocated logical rpis. */ 1970 if (phba->sli_rev < LPFC_SLI_REV4) 1971 ndlp->nlp_rpi = mb->un.varWords[0]; 1972 1973 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1974 1975 /* Only if we are not a fabric nport do we issue PRLI */ 1976 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1977 "3066 RegLogin Complete on x%x x%x x%x\n", 1978 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 1979 if (!(ndlp->nlp_type & NLP_FABRIC) && 1980 (phba->nvmet_support == 0)) { 1981 /* The driver supports FCP and NVME concurrently. If the 1982 * ndlp's nlp_fc4_type is still zero, the driver doesn't 1983 * know what PRLI to send yet. Figure that out now and 1984 * call PRLI depending on the outcome. 1985 */ 1986 if (test_bit(FC_PT2PT, &vport->fc_flag)) { 1987 /* If we are pt2pt, there is no Fabric to determine 1988 * the FC4 type of the remote nport. So if NVME 1989 * is configured try it. 1990 */ 1991 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1992 if ((!test_bit(FC_PT2PT_NO_NVME, &vport->fc_flag)) && 1993 (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH || 1994 vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1995 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1996 /* We need to update the localport also */ 1997 lpfc_nvme_update_localport(vport); 1998 } 1999 2000 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2001 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 2002 2003 } else if (ndlp->nlp_fc4_type == 0) { 2004 /* If we are only configured for FCP, the driver 2005 * should just issue PRLI for FCP. Otherwise issue 2006 * GFT_ID to determine if remote port supports NVME. 2007 */ 2008 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 2009 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0, 2010 ndlp->nlp_DID); 2011 return ndlp->nlp_state; 2012 } 2013 ndlp->nlp_fc4_type = NLP_FC4_FCP; 2014 } 2015 2016 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2017 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 2018 if (lpfc_issue_els_prli(vport, ndlp, 0)) { 2019 lpfc_issue_els_logo(vport, ndlp, 0); 2020 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2021 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2022 } 2023 } else { 2024 if (test_bit(FC_PT2PT, &vport->fc_flag) && phba->nvmet_support) 2025 phba->targetport->port_id = vport->fc_myDID; 2026 2027 /* Only Fabric ports should transition. NVME target 2028 * must complete PRLI. 2029 */ 2030 if (ndlp->nlp_type & NLP_FABRIC) { 2031 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2032 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2033 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2034 } 2035 } 2036 return ndlp->nlp_state; 2037 } 2038 2039 static uint32_t 2040 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 2041 struct lpfc_nodelist *ndlp, 2042 void *arg, 2043 uint32_t evt) 2044 { 2045 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2046 spin_lock_irq(&ndlp->lock); 2047 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2048 spin_unlock_irq(&ndlp->lock); 2049 return ndlp->nlp_state; 2050 } else { 2051 lpfc_drop_node(vport, ndlp); 2052 return NLP_STE_FREED_NODE; 2053 } 2054 } 2055 2056 static uint32_t 2057 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 2058 struct lpfc_nodelist *ndlp, 2059 void *arg, 2060 uint32_t evt) 2061 { 2062 /* Don't do anything that will mess up processing of the 2063 * previous RSCN. 2064 */ 2065 if (test_bit(FC_RSCN_DEFERRED, &vport->fc_flag)) 2066 return ndlp->nlp_state; 2067 2068 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2069 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2070 spin_lock_irq(&ndlp->lock); 2071 2072 /* If we are a target we won't immediately transition into PRLI, 2073 * so if REG_LOGIN already completed we don't need to ignore it. 2074 */ 2075 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) || 2076 !vport->phba->nvmet_support) 2077 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 2078 2079 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2080 spin_unlock_irq(&ndlp->lock); 2081 lpfc_disc_set_adisc(vport, ndlp); 2082 return ndlp->nlp_state; 2083 } 2084 2085 static uint32_t 2086 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2087 void *arg, uint32_t evt) 2088 { 2089 struct lpfc_iocbq *cmdiocb; 2090 2091 cmdiocb = (struct lpfc_iocbq *) arg; 2092 2093 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2094 return ndlp->nlp_state; 2095 } 2096 2097 static uint32_t 2098 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2099 void *arg, uint32_t evt) 2100 { 2101 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2102 2103 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2104 return ndlp->nlp_state; 2105 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2106 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2107 return ndlp->nlp_state; 2108 } 2109 2110 static uint32_t 2111 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2112 void *arg, uint32_t evt) 2113 { 2114 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2115 2116 /* Software abort outstanding PRLI before sending acc */ 2117 lpfc_els_abort(vport->phba, ndlp); 2118 2119 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2120 return ndlp->nlp_state; 2121 } 2122 2123 static uint32_t 2124 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2125 void *arg, uint32_t evt) 2126 { 2127 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2128 2129 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2130 return ndlp->nlp_state; 2131 } 2132 2133 /* This routine is envoked when we rcv a PRLO request from a nport 2134 * we are logged into. We should send back a PRLO rsp setting the 2135 * appropriate bits. 2136 * NEXT STATE = PRLI_ISSUE 2137 */ 2138 static uint32_t 2139 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2140 void *arg, uint32_t evt) 2141 { 2142 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2143 2144 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2145 return ndlp->nlp_state; 2146 } 2147 2148 static uint32_t 2149 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2150 void *arg, uint32_t evt) 2151 { 2152 struct lpfc_iocbq *cmdiocb, *rspiocb; 2153 struct lpfc_hba *phba = vport->phba; 2154 PRLI *npr; 2155 struct lpfc_nvme_prli *nvpr; 2156 void *temp_ptr; 2157 u32 ulp_status; 2158 bool acc_imode_sps = false; 2159 2160 cmdiocb = (struct lpfc_iocbq *) arg; 2161 rspiocb = cmdiocb->rsp_iocb; 2162 2163 ulp_status = get_job_ulpstatus(phba, rspiocb); 2164 2165 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 2166 * format is different so NULL the two PRLI types so that the 2167 * driver correctly gets the correct context. 2168 */ 2169 npr = NULL; 2170 nvpr = NULL; 2171 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 2172 if (cmdiocb->cmd_flag & LPFC_PRLI_FCP_REQ) 2173 npr = (PRLI *) temp_ptr; 2174 else if (cmdiocb->cmd_flag & LPFC_PRLI_NVME_REQ) 2175 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 2176 2177 if (ulp_status) { 2178 if ((vport->port_type == LPFC_NPIV_PORT) && 2179 vport->cfg_restrict_login) { 2180 goto out; 2181 } 2182 2183 /* Adjust the nlp_type accordingly if the PRLI failed */ 2184 if (npr) 2185 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2186 if (nvpr) 2187 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 2188 2189 /* We can't set the DSM state till BOTH PRLIs complete */ 2190 goto out_err; 2191 } 2192 2193 if (npr && npr->prliType == PRLI_FCP_TYPE) { 2194 lpfc_printf_vlog(vport, KERN_INFO, 2195 LOG_ELS | LOG_NODE | LOG_DISCOVERY, 2196 "6028 FCP NPR PRLI Cmpl Init %d Target %d " 2197 "EIP %d AccCode x%x\n", 2198 npr->initiatorFunc, npr->targetFunc, 2199 npr->estabImagePair, npr->acceptRspCode); 2200 2201 if (npr->acceptRspCode == PRLI_INV_SRV_PARM) { 2202 /* Strict initiators don't establish an image pair. */ 2203 if (npr->initiatorFunc && !npr->targetFunc && 2204 !npr->estabImagePair) 2205 acc_imode_sps = true; 2206 } 2207 2208 if (npr->acceptRspCode == PRLI_REQ_EXECUTED || acc_imode_sps) { 2209 if (npr->initiatorFunc) 2210 ndlp->nlp_type |= NLP_FCP_INITIATOR; 2211 if (npr->targetFunc) { 2212 ndlp->nlp_type |= NLP_FCP_TARGET; 2213 if (npr->writeXferRdyDis) 2214 ndlp->nlp_flag |= NLP_FIRSTBURST; 2215 } 2216 if (npr->Retry) 2217 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 2218 } 2219 } else if (nvpr && 2220 (bf_get_be32(prli_acc_rsp_code, nvpr) == 2221 PRLI_REQ_EXECUTED) && 2222 (bf_get_be32(prli_type_code, nvpr) == 2223 PRLI_NVME_TYPE)) { 2224 2225 /* Complete setting up the remote ndlp personality. */ 2226 if (bf_get_be32(prli_init, nvpr)) 2227 ndlp->nlp_type |= NLP_NVME_INITIATOR; 2228 2229 if (phba->nsler && bf_get_be32(prli_nsler, nvpr) && 2230 bf_get_be32(prli_conf, nvpr)) 2231 2232 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 2233 else 2234 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 2235 2236 /* Target driver cannot solicit NVME FB. */ 2237 if (bf_get_be32(prli_tgt, nvpr)) { 2238 /* Complete the nvme target roles. The transport 2239 * needs to know if the rport is capable of 2240 * discovery in addition to its role. 2241 */ 2242 ndlp->nlp_type |= NLP_NVME_TARGET; 2243 if (bf_get_be32(prli_disc, nvpr)) 2244 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 2245 2246 /* 2247 * If prli_fba is set, the Target supports FirstBurst. 2248 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 2249 * otherwise it defines the actual size supported by 2250 * the NVME Target. 2251 */ 2252 if ((bf_get_be32(prli_fba, nvpr) == 1) && 2253 (phba->cfg_nvme_enable_fb) && 2254 (!phba->nvmet_support)) { 2255 /* Both sides support FB. The target's first 2256 * burst size is a 512 byte encoded value. 2257 */ 2258 ndlp->nlp_flag |= NLP_FIRSTBURST; 2259 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2260 nvpr); 2261 2262 /* Expressed in units of 512 bytes */ 2263 if (ndlp->nvme_fb_size) 2264 ndlp->nvme_fb_size <<= 2265 LPFC_NVME_FB_SHIFT; 2266 else 2267 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2268 } 2269 } 2270 2271 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2272 "6029 NVME PRLI Cmpl w1 x%08x " 2273 "w4 x%08x w5 x%08x flag x%x, " 2274 "fcp_info x%x nlp_type x%x\n", 2275 be32_to_cpu(nvpr->word1), 2276 be32_to_cpu(nvpr->word4), 2277 be32_to_cpu(nvpr->word5), 2278 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2279 ndlp->nlp_type); 2280 } 2281 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2282 (vport->port_type == LPFC_NPIV_PORT) && 2283 vport->cfg_restrict_login) { 2284 out: 2285 spin_lock_irq(&ndlp->lock); 2286 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 2287 spin_unlock_irq(&ndlp->lock); 2288 lpfc_issue_els_logo(vport, ndlp, 0); 2289 2290 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2291 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2292 return ndlp->nlp_state; 2293 } 2294 2295 out_err: 2296 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2297 * are complete. 2298 */ 2299 if (ndlp->fc4_prli_sent == 0) { 2300 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2301 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2302 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2303 else if (ndlp->nlp_type & 2304 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2305 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2306 } else 2307 lpfc_printf_vlog(vport, 2308 KERN_INFO, LOG_ELS, 2309 "3067 PRLI's still outstanding " 2310 "on x%06x - count %d, Pend Node Mode " 2311 "transition...\n", 2312 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2313 2314 return ndlp->nlp_state; 2315 } 2316 2317 /*! lpfc_device_rm_prli_issue 2318 * 2319 * \pre 2320 * \post 2321 * \param phba 2322 * \param ndlp 2323 * \param arg 2324 * \param evt 2325 * \return uint32_t 2326 * 2327 * \b Description: 2328 * This routine is envoked when we a request to remove a nport we are in the 2329 * process of PRLIing. We should software abort outstanding prli, unreg 2330 * login, send a logout. We will change node state to UNUSED_NODE, put it 2331 * on plogi list so it can be freed when LOGO completes. 2332 * 2333 */ 2334 2335 static uint32_t 2336 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2337 void *arg, uint32_t evt) 2338 { 2339 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2340 spin_lock_irq(&ndlp->lock); 2341 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2342 spin_unlock_irq(&ndlp->lock); 2343 return ndlp->nlp_state; 2344 } else { 2345 /* software abort outstanding PLOGI */ 2346 lpfc_els_abort(vport->phba, ndlp); 2347 2348 lpfc_drop_node(vport, ndlp); 2349 return NLP_STE_FREED_NODE; 2350 } 2351 } 2352 2353 2354 /*! lpfc_device_recov_prli_issue 2355 * 2356 * \pre 2357 * \post 2358 * \param phba 2359 * \param ndlp 2360 * \param arg 2361 * \param evt 2362 * \return uint32_t 2363 * 2364 * \b Description: 2365 * The routine is envoked when the state of a device is unknown, like 2366 * during a link down. We should remove the nodelist entry from the 2367 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2368 * outstanding PRLI command, then free the node entry. 2369 */ 2370 static uint32_t 2371 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2372 struct lpfc_nodelist *ndlp, 2373 void *arg, 2374 uint32_t evt) 2375 { 2376 struct lpfc_hba *phba = vport->phba; 2377 2378 /* Don't do anything that will mess up processing of the 2379 * previous RSCN. 2380 */ 2381 if (test_bit(FC_RSCN_DEFERRED, &vport->fc_flag)) 2382 return ndlp->nlp_state; 2383 2384 /* software abort outstanding PRLI */ 2385 lpfc_els_abort(phba, ndlp); 2386 2387 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2388 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2389 spin_lock_irq(&ndlp->lock); 2390 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2391 spin_unlock_irq(&ndlp->lock); 2392 lpfc_disc_set_adisc(vport, ndlp); 2393 return ndlp->nlp_state; 2394 } 2395 2396 static uint32_t 2397 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2398 void *arg, uint32_t evt) 2399 { 2400 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2401 struct ls_rjt stat; 2402 2403 memset(&stat, 0, sizeof(struct ls_rjt)); 2404 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2405 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2406 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2407 return ndlp->nlp_state; 2408 } 2409 2410 static uint32_t 2411 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2412 void *arg, uint32_t evt) 2413 { 2414 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2415 struct ls_rjt stat; 2416 2417 memset(&stat, 0, sizeof(struct ls_rjt)); 2418 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2419 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2420 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2421 return ndlp->nlp_state; 2422 } 2423 2424 static uint32_t 2425 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2426 void *arg, uint32_t evt) 2427 { 2428 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2429 2430 spin_lock_irq(&ndlp->lock); 2431 ndlp->nlp_flag |= NLP_LOGO_ACC; 2432 spin_unlock_irq(&ndlp->lock); 2433 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2434 return ndlp->nlp_state; 2435 } 2436 2437 static uint32_t 2438 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2439 void *arg, uint32_t evt) 2440 { 2441 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2442 struct ls_rjt stat; 2443 2444 memset(&stat, 0, sizeof(struct ls_rjt)); 2445 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2446 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2447 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2448 return ndlp->nlp_state; 2449 } 2450 2451 static uint32_t 2452 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2453 void *arg, uint32_t evt) 2454 { 2455 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2456 struct ls_rjt stat; 2457 2458 memset(&stat, 0, sizeof(struct ls_rjt)); 2459 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2460 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2461 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2462 return ndlp->nlp_state; 2463 } 2464 2465 static uint32_t 2466 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2467 void *arg, uint32_t evt) 2468 { 2469 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2470 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2471 spin_lock_irq(&ndlp->lock); 2472 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2473 spin_unlock_irq(&ndlp->lock); 2474 lpfc_disc_set_adisc(vport, ndlp); 2475 return ndlp->nlp_state; 2476 } 2477 2478 static uint32_t 2479 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2480 void *arg, uint32_t evt) 2481 { 2482 /* 2483 * DevLoss has timed out and is calling for Device Remove. 2484 * In this case, abort the LOGO and cleanup the ndlp 2485 */ 2486 2487 lpfc_unreg_rpi(vport, ndlp); 2488 /* software abort outstanding PLOGI */ 2489 lpfc_els_abort(vport->phba, ndlp); 2490 lpfc_drop_node(vport, ndlp); 2491 return NLP_STE_FREED_NODE; 2492 } 2493 2494 static uint32_t 2495 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2496 struct lpfc_nodelist *ndlp, 2497 void *arg, uint32_t evt) 2498 { 2499 /* 2500 * Device Recovery events have no meaning for a node with a LOGO 2501 * outstanding. The LOGO has to complete first and handle the 2502 * node from that point. 2503 */ 2504 return ndlp->nlp_state; 2505 } 2506 2507 static uint32_t 2508 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2509 void *arg, uint32_t evt) 2510 { 2511 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2512 2513 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2514 return ndlp->nlp_state; 2515 } 2516 2517 static uint32_t 2518 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2519 void *arg, uint32_t evt) 2520 { 2521 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2522 2523 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2524 return ndlp->nlp_state; 2525 2526 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2527 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2528 return ndlp->nlp_state; 2529 } 2530 2531 static uint32_t 2532 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2533 void *arg, uint32_t evt) 2534 { 2535 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2536 2537 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2538 return ndlp->nlp_state; 2539 } 2540 2541 static uint32_t 2542 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2543 void *arg, uint32_t evt) 2544 { 2545 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2546 2547 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2548 return ndlp->nlp_state; 2549 } 2550 2551 static uint32_t 2552 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2553 void *arg, uint32_t evt) 2554 { 2555 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2556 2557 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2558 return ndlp->nlp_state; 2559 } 2560 2561 static uint32_t 2562 lpfc_device_rm_unmap_node(struct lpfc_vport *vport, 2563 struct lpfc_nodelist *ndlp, 2564 void *arg, 2565 uint32_t evt) 2566 { 2567 lpfc_drop_node(vport, ndlp); 2568 return NLP_STE_FREED_NODE; 2569 } 2570 2571 static uint32_t 2572 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2573 struct lpfc_nodelist *ndlp, 2574 void *arg, 2575 uint32_t evt) 2576 { 2577 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2578 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2579 spin_lock_irq(&ndlp->lock); 2580 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2581 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2582 spin_unlock_irq(&ndlp->lock); 2583 lpfc_disc_set_adisc(vport, ndlp); 2584 2585 return ndlp->nlp_state; 2586 } 2587 2588 static uint32_t 2589 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2590 void *arg, uint32_t evt) 2591 { 2592 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2593 2594 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2595 return ndlp->nlp_state; 2596 } 2597 2598 static uint32_t 2599 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2600 void *arg, uint32_t evt) 2601 { 2602 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2603 2604 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2605 return ndlp->nlp_state; 2606 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2607 return ndlp->nlp_state; 2608 } 2609 2610 static uint32_t 2611 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2612 void *arg, uint32_t evt) 2613 { 2614 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2615 2616 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2617 return ndlp->nlp_state; 2618 } 2619 2620 static uint32_t 2621 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2622 struct lpfc_nodelist *ndlp, 2623 void *arg, uint32_t evt) 2624 { 2625 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2626 2627 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2628 return ndlp->nlp_state; 2629 } 2630 2631 static uint32_t 2632 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2633 void *arg, uint32_t evt) 2634 { 2635 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2636 2637 /* flush the target */ 2638 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2639 2640 /* Treat like rcv logo */ 2641 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2642 return ndlp->nlp_state; 2643 } 2644 2645 static uint32_t 2646 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2647 struct lpfc_nodelist *ndlp, 2648 void *arg, 2649 uint32_t evt) 2650 { 2651 lpfc_disc_set_adisc(vport, ndlp); 2652 2653 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2654 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2655 spin_lock_irq(&ndlp->lock); 2656 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2657 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2658 spin_unlock_irq(&ndlp->lock); 2659 return ndlp->nlp_state; 2660 } 2661 2662 static uint32_t 2663 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2664 void *arg, uint32_t evt) 2665 { 2666 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2667 2668 /* Ignore PLOGI if we have an outstanding LOGO */ 2669 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2670 return ndlp->nlp_state; 2671 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2672 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2673 spin_lock_irq(&ndlp->lock); 2674 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2675 spin_unlock_irq(&ndlp->lock); 2676 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2677 /* send PLOGI immediately, move to PLOGI issue state */ 2678 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2679 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2680 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2681 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2682 } 2683 } 2684 return ndlp->nlp_state; 2685 } 2686 2687 static uint32_t 2688 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2689 void *arg, uint32_t evt) 2690 { 2691 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2692 struct ls_rjt stat; 2693 2694 memset(&stat, 0, sizeof (struct ls_rjt)); 2695 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2696 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2697 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2698 2699 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2700 /* 2701 * ADISC nodes will be handled in regular discovery path after 2702 * receiving response from NS. 2703 * 2704 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2705 */ 2706 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2707 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2708 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2709 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2710 } 2711 } 2712 return ndlp->nlp_state; 2713 } 2714 2715 static uint32_t 2716 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2717 void *arg, uint32_t evt) 2718 { 2719 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2720 2721 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2722 return ndlp->nlp_state; 2723 } 2724 2725 static uint32_t 2726 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2727 void *arg, uint32_t evt) 2728 { 2729 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2730 2731 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2732 /* 2733 * Do not start discovery if discovery is about to start 2734 * or discovery in progress for this node. Starting discovery 2735 * here will affect the counting of discovery threads. 2736 */ 2737 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2738 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2739 /* 2740 * ADISC nodes will be handled in regular discovery path after 2741 * receiving response from NS. 2742 * 2743 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2744 */ 2745 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2746 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2747 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2748 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2749 } 2750 } 2751 return ndlp->nlp_state; 2752 } 2753 2754 static uint32_t 2755 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2756 void *arg, uint32_t evt) 2757 { 2758 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2759 2760 spin_lock_irq(&ndlp->lock); 2761 ndlp->nlp_flag |= NLP_LOGO_ACC; 2762 spin_unlock_irq(&ndlp->lock); 2763 2764 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2765 2766 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2767 mod_timer(&ndlp->nlp_delayfunc, 2768 jiffies + msecs_to_jiffies(1000 * 1)); 2769 spin_lock_irq(&ndlp->lock); 2770 ndlp->nlp_flag |= NLP_DELAY_TMO; 2771 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2772 spin_unlock_irq(&ndlp->lock); 2773 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2774 } else { 2775 spin_lock_irq(&ndlp->lock); 2776 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2777 spin_unlock_irq(&ndlp->lock); 2778 } 2779 return ndlp->nlp_state; 2780 } 2781 2782 static uint32_t 2783 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2784 void *arg, uint32_t evt) 2785 { 2786 struct lpfc_hba *phba = vport->phba; 2787 struct lpfc_iocbq *cmdiocb, *rspiocb; 2788 u32 ulp_status; 2789 2790 cmdiocb = (struct lpfc_iocbq *) arg; 2791 rspiocb = cmdiocb->rsp_iocb; 2792 2793 ulp_status = get_job_ulpstatus(phba, rspiocb); 2794 2795 if (ulp_status) 2796 return NLP_STE_FREED_NODE; 2797 2798 return ndlp->nlp_state; 2799 } 2800 2801 static uint32_t 2802 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2803 void *arg, uint32_t evt) 2804 { 2805 struct lpfc_hba *phba = vport->phba; 2806 struct lpfc_iocbq *cmdiocb, *rspiocb; 2807 u32 ulp_status; 2808 2809 cmdiocb = (struct lpfc_iocbq *) arg; 2810 rspiocb = cmdiocb->rsp_iocb; 2811 2812 ulp_status = get_job_ulpstatus(phba, rspiocb); 2813 2814 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2815 lpfc_drop_node(vport, ndlp); 2816 return NLP_STE_FREED_NODE; 2817 } 2818 return ndlp->nlp_state; 2819 } 2820 2821 static uint32_t 2822 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2823 void *arg, uint32_t evt) 2824 { 2825 /* For the fabric port just clear the fc flags. */ 2826 if (ndlp->nlp_DID == Fabric_DID) { 2827 clear_bit(FC_FABRIC, &vport->fc_flag); 2828 clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag); 2829 } 2830 lpfc_unreg_rpi(vport, ndlp); 2831 return ndlp->nlp_state; 2832 } 2833 2834 static uint32_t 2835 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2836 void *arg, uint32_t evt) 2837 { 2838 struct lpfc_hba *phba = vport->phba; 2839 struct lpfc_iocbq *cmdiocb, *rspiocb; 2840 u32 ulp_status; 2841 2842 cmdiocb = (struct lpfc_iocbq *) arg; 2843 rspiocb = cmdiocb->rsp_iocb; 2844 2845 ulp_status = get_job_ulpstatus(phba, rspiocb); 2846 2847 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2848 lpfc_drop_node(vport, ndlp); 2849 return NLP_STE_FREED_NODE; 2850 } 2851 return ndlp->nlp_state; 2852 } 2853 2854 static uint32_t 2855 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2856 struct lpfc_nodelist *ndlp, 2857 void *arg, uint32_t evt) 2858 { 2859 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2860 MAILBOX_t *mb = &pmb->u.mb; 2861 2862 if (!mb->mbxStatus) { 2863 /* SLI4 ports have preallocated logical rpis. */ 2864 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2865 ndlp->nlp_rpi = mb->un.varWords[0]; 2866 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2867 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 2868 lpfc_unreg_rpi(vport, ndlp); 2869 } 2870 } else { 2871 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2872 lpfc_drop_node(vport, ndlp); 2873 return NLP_STE_FREED_NODE; 2874 } 2875 } 2876 return ndlp->nlp_state; 2877 } 2878 2879 static uint32_t 2880 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2881 void *arg, uint32_t evt) 2882 { 2883 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2884 spin_lock_irq(&ndlp->lock); 2885 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2886 spin_unlock_irq(&ndlp->lock); 2887 return ndlp->nlp_state; 2888 } 2889 lpfc_drop_node(vport, ndlp); 2890 return NLP_STE_FREED_NODE; 2891 } 2892 2893 static uint32_t 2894 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2895 void *arg, uint32_t evt) 2896 { 2897 /* Don't do anything that will mess up processing of the 2898 * previous RSCN. 2899 */ 2900 if (test_bit(FC_RSCN_DEFERRED, &vport->fc_flag)) 2901 return ndlp->nlp_state; 2902 2903 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2904 spin_lock_irq(&ndlp->lock); 2905 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2906 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2907 spin_unlock_irq(&ndlp->lock); 2908 return ndlp->nlp_state; 2909 } 2910 2911 2912 /* This next section defines the NPort Discovery State Machine */ 2913 2914 /* There are 4 different double linked lists nodelist entries can reside on. 2915 * The plogi list and adisc list are used when Link Up discovery or RSCN 2916 * processing is needed. Each list holds the nodes that we will send PLOGI 2917 * or ADISC on. These lists will keep track of what nodes will be effected 2918 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2919 * The unmapped_list will contain all nodes that we have successfully logged 2920 * into at the Fibre Channel level. The mapped_list will contain all nodes 2921 * that are mapped FCP targets. 2922 */ 2923 /* 2924 * The bind list is a list of undiscovered (potentially non-existent) nodes 2925 * that we have saved binding information on. This information is used when 2926 * nodes transition from the unmapped to the mapped list. 2927 */ 2928 /* For UNUSED_NODE state, the node has just been allocated . 2929 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2930 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2931 * and put on the unmapped list. For ADISC processing, the node is taken off 2932 * the ADISC list and placed on either the mapped or unmapped list (depending 2933 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2934 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2935 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2936 * node, the node is taken off the unmapped list. The binding list is checked 2937 * for a valid binding, or a binding is automatically assigned. If binding 2938 * assignment is unsuccessful, the node is left on the unmapped list. If 2939 * binding assignment is successful, the associated binding list entry (if 2940 * any) is removed, and the node is placed on the mapped list. 2941 */ 2942 /* 2943 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2944 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2945 * expire, all effected nodes will receive a DEVICE_RM event. 2946 */ 2947 /* 2948 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2949 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2950 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2951 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2952 * we will first process the ADISC list. 32 entries are processed initially and 2953 * ADISC is initited for each one. Completions / Events for each node are 2954 * funnelled thru the state machine. As each node finishes ADISC processing, it 2955 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2956 * waiting, and the ADISC list count is identically 0, then we are done. For 2957 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2958 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2959 * list. 32 entries are processed initially and PLOGI is initited for each one. 2960 * Completions / Events for each node are funnelled thru the state machine. As 2961 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2962 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2963 * indentically 0, then we are done. We have now completed discovery / RSCN 2964 * handling. Upon completion, ALL nodes should be on either the mapped or 2965 * unmapped lists. 2966 */ 2967 2968 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2969 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2970 /* Action routine Event Current State */ 2971 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2972 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2973 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2974 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2975 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2976 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2977 lpfc_disc_illegal, /* CMPL_PLOGI */ 2978 lpfc_disc_illegal, /* CMPL_PRLI */ 2979 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2980 lpfc_disc_illegal, /* CMPL_ADISC */ 2981 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2982 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2983 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2984 2985 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2986 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2987 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2988 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2989 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2990 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2991 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2992 lpfc_disc_illegal, /* CMPL_PRLI */ 2993 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2994 lpfc_disc_illegal, /* CMPL_ADISC */ 2995 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2996 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2997 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2998 2999 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 3000 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 3001 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 3002 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 3003 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 3004 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 3005 lpfc_disc_illegal, /* CMPL_PLOGI */ 3006 lpfc_disc_illegal, /* CMPL_PRLI */ 3007 lpfc_disc_illegal, /* CMPL_LOGO */ 3008 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 3009 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3010 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 3011 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 3012 3013 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 3014 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 3015 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 3016 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 3017 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 3018 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 3019 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3020 lpfc_disc_illegal, /* CMPL_PRLI */ 3021 lpfc_disc_illegal, /* CMPL_LOGO */ 3022 lpfc_disc_illegal, /* CMPL_ADISC */ 3023 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 3024 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 3025 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 3026 3027 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 3028 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 3029 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 3030 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 3031 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 3032 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 3033 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3034 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 3035 lpfc_disc_illegal, /* CMPL_LOGO */ 3036 lpfc_disc_illegal, /* CMPL_ADISC */ 3037 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3038 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 3039 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 3040 3041 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 3042 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 3043 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 3044 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 3045 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 3046 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 3047 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3048 lpfc_disc_illegal, /* CMPL_PRLI */ 3049 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 3050 lpfc_disc_illegal, /* CMPL_ADISC */ 3051 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3052 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 3053 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 3054 3055 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 3056 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 3057 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 3058 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 3059 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 3060 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 3061 lpfc_disc_illegal, /* CMPL_PLOGI */ 3062 lpfc_disc_illegal, /* CMPL_PRLI */ 3063 lpfc_disc_illegal, /* CMPL_LOGO */ 3064 lpfc_disc_illegal, /* CMPL_ADISC */ 3065 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3066 lpfc_device_rm_unmap_node, /* DEVICE_RM */ 3067 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 3068 3069 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 3070 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 3071 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 3072 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 3073 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 3074 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 3075 lpfc_disc_illegal, /* CMPL_PLOGI */ 3076 lpfc_disc_illegal, /* CMPL_PRLI */ 3077 lpfc_disc_illegal, /* CMPL_LOGO */ 3078 lpfc_disc_illegal, /* CMPL_ADISC */ 3079 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3080 lpfc_disc_illegal, /* DEVICE_RM */ 3081 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 3082 3083 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 3084 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 3085 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 3086 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 3087 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 3088 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 3089 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 3090 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 3091 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 3092 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 3093 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 3094 lpfc_device_rm_npr_node, /* DEVICE_RM */ 3095 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 3096 }; 3097 3098 int 3099 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3100 void *arg, uint32_t evt) 3101 { 3102 uint32_t cur_state, rc; 3103 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 3104 uint32_t); 3105 uint32_t got_ndlp = 0; 3106 uint32_t data1; 3107 3108 if (lpfc_nlp_get(ndlp)) 3109 got_ndlp = 1; 3110 3111 cur_state = ndlp->nlp_state; 3112 3113 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3114 ((uint32_t)ndlp->nlp_type)); 3115 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 3116 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3117 "0211 DSM in event x%x on NPort x%x in " 3118 "state %d rpi x%x Data: x%x x%x\n", 3119 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, 3120 ndlp->nlp_flag, data1); 3121 3122 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3123 "DSM in: evt:%d ste:%d did:x%x", 3124 evt, cur_state, ndlp->nlp_DID); 3125 3126 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 3127 rc = (func) (vport, ndlp, arg, evt); 3128 3129 /* DSM out state <rc> on NPort <nlp_DID> */ 3130 if (got_ndlp) { 3131 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3132 ((uint32_t)ndlp->nlp_type)); 3133 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3134 "0212 DSM out state %d on NPort x%x " 3135 "rpi x%x Data: x%x x%x\n", 3136 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag, 3137 data1); 3138 3139 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3140 "DSM out: ste:%d did:x%x flg:x%x", 3141 rc, ndlp->nlp_DID, ndlp->nlp_flag); 3142 /* Decrement the ndlp reference count held for this function */ 3143 lpfc_nlp_put(ndlp); 3144 } else { 3145 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3146 "0213 DSM out state %d on NPort free\n", rc); 3147 3148 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3149 "DSM out: ste:%d did:x%x flg:x%x", 3150 rc, 0, 0); 3151 } 3152 3153 return rc; 3154 } 3155