1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2022 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/pci.h> 26 #include <linux/slab.h> 27 #include <linux/interrupt.h> 28 29 #include <scsi/scsi.h> 30 #include <scsi/scsi_device.h> 31 #include <scsi/scsi_host.h> 32 #include <scsi/scsi_transport_fc.h> 33 #include <scsi/fc/fc_fs.h> 34 35 #include "lpfc_hw4.h" 36 #include "lpfc_hw.h" 37 #include "lpfc_sli.h" 38 #include "lpfc_sli4.h" 39 #include "lpfc_nl.h" 40 #include "lpfc_disc.h" 41 #include "lpfc.h" 42 #include "lpfc_scsi.h" 43 #include "lpfc_nvme.h" 44 #include "lpfc_logmsg.h" 45 #include "lpfc_crtn.h" 46 #include "lpfc_vport.h" 47 #include "lpfc_debugfs.h" 48 49 50 /* Called to verify a rcv'ed ADISC was intended for us. */ 51 static int 52 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 53 struct lpfc_name *nn, struct lpfc_name *pn) 54 { 55 /* First, we MUST have a RPI registered */ 56 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) 57 return 0; 58 59 /* Compare the ADISC rsp WWNN / WWPN matches our internal node 60 * table entry for that node. 61 */ 62 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) 63 return 0; 64 65 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) 66 return 0; 67 68 /* we match, return success */ 69 return 1; 70 } 71 72 int 73 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 74 struct serv_parm *sp, uint32_t class, int flogi) 75 { 76 volatile struct serv_parm *hsp = &vport->fc_sparam; 77 uint16_t hsp_value, ssp_value = 0; 78 79 /* 80 * The receive data field size and buffer-to-buffer receive data field 81 * size entries are 16 bits but are represented as two 8-bit fields in 82 * the driver data structure to account for rsvd bits and other control 83 * bits. Reconstruct and compare the fields as a 16-bit values before 84 * correcting the byte values. 85 */ 86 if (sp->cls1.classValid) { 87 if (!flogi) { 88 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) | 89 hsp->cls1.rcvDataSizeLsb); 90 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) | 91 sp->cls1.rcvDataSizeLsb); 92 if (!ssp_value) 93 goto bad_service_param; 94 if (ssp_value > hsp_value) { 95 sp->cls1.rcvDataSizeLsb = 96 hsp->cls1.rcvDataSizeLsb; 97 sp->cls1.rcvDataSizeMsb = 98 hsp->cls1.rcvDataSizeMsb; 99 } 100 } 101 } else if (class == CLASS1) 102 goto bad_service_param; 103 if (sp->cls2.classValid) { 104 if (!flogi) { 105 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) | 106 hsp->cls2.rcvDataSizeLsb); 107 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) | 108 sp->cls2.rcvDataSizeLsb); 109 if (!ssp_value) 110 goto bad_service_param; 111 if (ssp_value > hsp_value) { 112 sp->cls2.rcvDataSizeLsb = 113 hsp->cls2.rcvDataSizeLsb; 114 sp->cls2.rcvDataSizeMsb = 115 hsp->cls2.rcvDataSizeMsb; 116 } 117 } 118 } else if (class == CLASS2) 119 goto bad_service_param; 120 if (sp->cls3.classValid) { 121 if (!flogi) { 122 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) | 123 hsp->cls3.rcvDataSizeLsb); 124 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) | 125 sp->cls3.rcvDataSizeLsb); 126 if (!ssp_value) 127 goto bad_service_param; 128 if (ssp_value > hsp_value) { 129 sp->cls3.rcvDataSizeLsb = 130 hsp->cls3.rcvDataSizeLsb; 131 sp->cls3.rcvDataSizeMsb = 132 hsp->cls3.rcvDataSizeMsb; 133 } 134 } 135 } else if (class == CLASS3) 136 goto bad_service_param; 137 138 /* 139 * Preserve the upper four bits of the MSB from the PLOGI response. 140 * These bits contain the Buffer-to-Buffer State Change Number 141 * from the target and need to be passed to the FW. 142 */ 143 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; 144 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; 145 if (ssp_value > hsp_value) { 146 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; 147 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | 148 (hsp->cmn.bbRcvSizeMsb & 0x0F); 149 } 150 151 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); 152 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); 153 return 1; 154 bad_service_param: 155 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 156 "0207 Device %x " 157 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 158 "invalid service parameters. Ignoring device.\n", 159 ndlp->nlp_DID, 160 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 161 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 162 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 163 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 164 return 0; 165 } 166 167 static void * 168 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 169 struct lpfc_iocbq *rspiocb) 170 { 171 struct lpfc_dmabuf *pcmd, *prsp; 172 uint32_t *lp; 173 void *ptr = NULL; 174 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 175 176 pcmd = cmdiocb->cmd_dmabuf; 177 178 /* For lpfc_els_abort, cmd_dmabuf could be zero'ed to delay 179 * freeing associated memory till after ABTS completes. 180 */ 181 if (pcmd) { 182 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, 183 list); 184 if (prsp) { 185 lp = (uint32_t *) prsp->virt; 186 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); 187 } 188 } else { 189 /* Force ulp_status error since we are returning NULL ptr */ 190 if (!(ulp_status)) { 191 if (phba->sli_rev == LPFC_SLI_REV4) { 192 bf_set(lpfc_wcqe_c_status, &rspiocb->wcqe_cmpl, 193 IOSTAT_LOCAL_REJECT); 194 rspiocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED; 195 } else { 196 rspiocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; 197 rspiocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED; 198 } 199 } 200 ptr = NULL; 201 } 202 return ptr; 203 } 204 205 206 207 /* 208 * Free resources / clean up outstanding I/Os 209 * associated with a LPFC_NODELIST entry. This 210 * routine effectively results in a "software abort". 211 */ 212 void 213 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 214 { 215 LIST_HEAD(abort_list); 216 struct lpfc_sli_ring *pring; 217 struct lpfc_iocbq *iocb, *next_iocb; 218 219 pring = lpfc_phba_elsring(phba); 220 221 /* In case of error recovery path, we might have a NULL pring here */ 222 if (unlikely(!pring)) 223 return; 224 225 /* Abort outstanding I/O on NPort <nlp_DID> */ 226 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, 227 "2819 Abort outstanding I/O on NPort x%x " 228 "Data: x%x x%x x%x\n", 229 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 230 ndlp->nlp_rpi); 231 /* Clean up all fabric IOs first.*/ 232 lpfc_fabric_abort_nport(ndlp); 233 234 /* 235 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list 236 * of all ELS IOs that need an ABTS. The IOs need to stay on the 237 * txcmplq so that the abort operation completes them successfully. 238 */ 239 spin_lock_irq(&phba->hbalock); 240 if (phba->sli_rev == LPFC_SLI_REV4) 241 spin_lock(&pring->ring_lock); 242 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 243 /* Add to abort_list on on NDLP match. */ 244 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 245 list_add_tail(&iocb->dlist, &abort_list); 246 } 247 if (phba->sli_rev == LPFC_SLI_REV4) 248 spin_unlock(&pring->ring_lock); 249 spin_unlock_irq(&phba->hbalock); 250 251 /* Abort the targeted IOs and remove them from the abort list. */ 252 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) { 253 spin_lock_irq(&phba->hbalock); 254 list_del_init(&iocb->dlist); 255 lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL); 256 spin_unlock_irq(&phba->hbalock); 257 } 258 /* Make sure HBA is alive */ 259 lpfc_issue_hb_tmo(phba); 260 261 INIT_LIST_HEAD(&abort_list); 262 263 /* Now process the txq */ 264 spin_lock_irq(&phba->hbalock); 265 if (phba->sli_rev == LPFC_SLI_REV4) 266 spin_lock(&pring->ring_lock); 267 268 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 269 /* Check to see if iocb matches the nport we are looking for */ 270 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 271 list_del_init(&iocb->list); 272 list_add_tail(&iocb->list, &abort_list); 273 } 274 } 275 276 if (phba->sli_rev == LPFC_SLI_REV4) 277 spin_unlock(&pring->ring_lock); 278 spin_unlock_irq(&phba->hbalock); 279 280 /* Cancel all the IOCBs from the completions list */ 281 lpfc_sli_cancel_iocbs(phba, &abort_list, 282 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 283 284 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 285 } 286 287 /* lpfc_defer_plogi_acc - Issue PLOGI ACC after reg_login completes 288 * @phba: pointer to lpfc hba data structure. 289 * @login_mbox: pointer to REG_RPI mailbox object 290 * 291 * The ACC for a rcv'ed PLOGI is deferred until AFTER the REG_RPI completes 292 */ 293 static void 294 lpfc_defer_plogi_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *login_mbox) 295 { 296 struct lpfc_iocbq *save_iocb; 297 struct lpfc_nodelist *ndlp; 298 MAILBOX_t *mb = &login_mbox->u.mb; 299 300 int rc; 301 302 ndlp = login_mbox->ctx_ndlp; 303 save_iocb = login_mbox->context3; 304 305 if (mb->mbxStatus == MBX_SUCCESS) { 306 /* Now that REG_RPI completed successfully, 307 * we can now proceed with sending the PLOGI ACC. 308 */ 309 rc = lpfc_els_rsp_acc(login_mbox->vport, ELS_CMD_PLOGI, 310 save_iocb, ndlp, NULL); 311 if (rc) { 312 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 313 "4576 PLOGI ACC fails pt2pt discovery: " 314 "DID %x Data: %x\n", ndlp->nlp_DID, rc); 315 } 316 } 317 318 /* Now process the REG_RPI cmpl */ 319 lpfc_mbx_cmpl_reg_login(phba, login_mbox); 320 ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN; 321 kfree(save_iocb); 322 } 323 324 static int 325 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 326 struct lpfc_iocbq *cmdiocb) 327 { 328 struct lpfc_hba *phba = vport->phba; 329 struct lpfc_dmabuf *pcmd; 330 uint64_t nlp_portwwn = 0; 331 uint32_t *lp; 332 union lpfc_wqe128 *wqe; 333 IOCB_t *icmd; 334 struct serv_parm *sp; 335 uint32_t ed_tov; 336 LPFC_MBOXQ_t *link_mbox; 337 LPFC_MBOXQ_t *login_mbox; 338 struct lpfc_iocbq *save_iocb; 339 struct ls_rjt stat; 340 uint32_t vid, flag; 341 int rc; 342 u32 remote_did; 343 344 memset(&stat, 0, sizeof (struct ls_rjt)); 345 pcmd = cmdiocb->cmd_dmabuf; 346 lp = (uint32_t *) pcmd->virt; 347 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 348 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 349 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 350 "0140 PLOGI Reject: invalid pname\n"); 351 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 352 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 353 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 354 NULL); 355 return 0; 356 } 357 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 358 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 359 "0141 PLOGI Reject: invalid nname\n"); 360 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 361 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 362 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 363 NULL); 364 return 0; 365 } 366 367 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 368 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 369 /* Reject this request because invalid parameters */ 370 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 371 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 372 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 373 NULL); 374 return 0; 375 } 376 377 if (phba->sli_rev == LPFC_SLI_REV4) 378 wqe = &cmdiocb->wqe; 379 else 380 icmd = &cmdiocb->iocb; 381 382 /* PLOGI chkparm OK */ 383 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 384 "0114 PLOGI chkparm OK Data: x%x x%x x%x " 385 "x%x x%x x%x\n", 386 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 387 ndlp->nlp_rpi, vport->port_state, 388 vport->fc_flag); 389 390 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 391 ndlp->nlp_fcp_info |= CLASS2; 392 else 393 ndlp->nlp_fcp_info |= CLASS3; 394 395 ndlp->nlp_class_sup = 0; 396 if (sp->cls1.classValid) 397 ndlp->nlp_class_sup |= FC_COS_CLASS1; 398 if (sp->cls2.classValid) 399 ndlp->nlp_class_sup |= FC_COS_CLASS2; 400 if (sp->cls3.classValid) 401 ndlp->nlp_class_sup |= FC_COS_CLASS3; 402 if (sp->cls4.classValid) 403 ndlp->nlp_class_sup |= FC_COS_CLASS4; 404 ndlp->nlp_maxframe = 405 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 406 /* if already logged in, do implicit logout */ 407 switch (ndlp->nlp_state) { 408 case NLP_STE_NPR_NODE: 409 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 410 break; 411 fallthrough; 412 case NLP_STE_REG_LOGIN_ISSUE: 413 case NLP_STE_PRLI_ISSUE: 414 case NLP_STE_UNMAPPED_NODE: 415 case NLP_STE_MAPPED_NODE: 416 /* For initiators, lpfc_plogi_confirm_nport skips fabric did. 417 * For target mode, execute implicit logo. 418 * Fabric nodes go into NPR. 419 */ 420 if (!(ndlp->nlp_type & NLP_FABRIC) && 421 !(phba->nvmet_support)) { 422 /* Clear ndlp info, since follow up PRLI may have 423 * updated ndlp information 424 */ 425 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 426 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 427 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 428 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 429 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 430 431 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 432 ndlp, NULL); 433 return 1; 434 } 435 if (nlp_portwwn != 0 && 436 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 437 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 438 "0143 PLOGI recv'd from DID: x%x " 439 "WWPN changed: old %llx new %llx\n", 440 ndlp->nlp_DID, 441 (unsigned long long)nlp_portwwn, 442 (unsigned long long) 443 wwn_to_u64(sp->portName.u.wwn)); 444 445 /* Notify transport of connectivity loss to trigger cleanup. */ 446 if (phba->nvmet_support && 447 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 448 lpfc_nvmet_invalidate_host(phba, ndlp); 449 450 ndlp->nlp_prev_state = ndlp->nlp_state; 451 /* rport needs to be unregistered first */ 452 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 453 break; 454 } 455 456 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 457 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 458 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 459 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 460 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 461 462 login_mbox = NULL; 463 link_mbox = NULL; 464 save_iocb = NULL; 465 466 /* Check for Nport to NPort pt2pt protocol */ 467 if ((vport->fc_flag & FC_PT2PT) && 468 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 469 /* rcv'ed PLOGI decides what our NPortId will be */ 470 if (phba->sli_rev == LPFC_SLI_REV4) { 471 vport->fc_myDID = bf_get(els_rsp64_sid, 472 &cmdiocb->wqe.xmit_els_rsp); 473 } else { 474 vport->fc_myDID = icmd->un.rcvels.parmRo; 475 } 476 477 /* If there is an outstanding FLOGI, abort it now. 478 * The remote NPort is not going to ACC our FLOGI 479 * if its already issuing a PLOGI for pt2pt mode. 480 * This indicates our FLOGI was dropped; however, we 481 * must have ACCed the remote NPorts FLOGI to us 482 * to make it here. 483 */ 484 if (phba->hba_flag & HBA_FLOGI_OUTSTANDING) 485 lpfc_els_abort_flogi(phba); 486 487 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 488 if (sp->cmn.edtovResolution) { 489 /* E_D_TOV ticks are in nanoseconds */ 490 ed_tov = (phba->fc_edtov + 999999) / 1000000; 491 } 492 493 /* 494 * For pt-to-pt, use the larger EDTOV 495 * RATOV = 2 * EDTOV 496 */ 497 if (ed_tov > phba->fc_edtov) 498 phba->fc_edtov = ed_tov; 499 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 500 501 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 502 503 /* Issue CONFIG_LINK for SLI3 or REG_VFI for SLI4, 504 * to account for updated TOV's / parameters 505 */ 506 if (phba->sli_rev == LPFC_SLI_REV4) 507 lpfc_issue_reg_vfi(vport); 508 else { 509 link_mbox = mempool_alloc(phba->mbox_mem_pool, 510 GFP_KERNEL); 511 if (!link_mbox) 512 goto out; 513 lpfc_config_link(phba, link_mbox); 514 link_mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 515 link_mbox->vport = vport; 516 517 /* The default completion handling for CONFIG_LINK 518 * does not require the ndlp so no reference is needed. 519 */ 520 link_mbox->ctx_ndlp = ndlp; 521 522 rc = lpfc_sli_issue_mbox(phba, link_mbox, MBX_NOWAIT); 523 if (rc == MBX_NOT_FINISHED) { 524 mempool_free(link_mbox, phba->mbox_mem_pool); 525 goto out; 526 } 527 } 528 529 lpfc_can_disctmo(vport); 530 } 531 532 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 533 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 534 sp->cmn.valid_vendor_ver_level) { 535 vid = be32_to_cpu(sp->un.vv.vid); 536 flag = be32_to_cpu(sp->un.vv.flags); 537 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) 538 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 539 } 540 541 login_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 542 if (!login_mbox) 543 goto out; 544 545 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL); 546 if (!save_iocb) 547 goto out; 548 549 /* Save info from cmd IOCB to be used in rsp after all mbox completes */ 550 memcpy((uint8_t *)save_iocb, (uint8_t *)cmdiocb, 551 sizeof(struct lpfc_iocbq)); 552 553 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 554 if (phba->sli_rev == LPFC_SLI_REV4) 555 lpfc_unreg_rpi(vport, ndlp); 556 557 /* Issue REG_LOGIN first, before ACCing the PLOGI, thus we will 558 * always be deferring the ACC. 559 */ 560 if (phba->sli_rev == LPFC_SLI_REV4) 561 remote_did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest); 562 else 563 remote_did = icmd->un.rcvels.remoteID; 564 rc = lpfc_reg_rpi(phba, vport->vpi, remote_did, 565 (uint8_t *)sp, login_mbox, ndlp->nlp_rpi); 566 if (rc) 567 goto out; 568 569 login_mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 570 login_mbox->vport = vport; 571 572 /* 573 * If there is an outstanding PLOGI issued, abort it before 574 * sending ACC rsp for received PLOGI. If pending plogi 575 * is not canceled here, the plogi will be rejected by 576 * remote port and will be retried. On a configuration with 577 * single discovery thread, this will cause a huge delay in 578 * discovery. Also this will cause multiple state machines 579 * running in parallel for this node. 580 * This only applies to a fabric environment. 581 */ 582 if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) && 583 (vport->fc_flag & FC_FABRIC)) { 584 /* software abort outstanding PLOGI */ 585 lpfc_els_abort(phba, ndlp); 586 } 587 588 if ((vport->port_type == LPFC_NPIV_PORT && 589 vport->cfg_restrict_login)) { 590 591 /* no deferred ACC */ 592 kfree(save_iocb); 593 594 /* This is an NPIV SLI4 instance that does not need to register 595 * a default RPI. 596 */ 597 if (phba->sli_rev == LPFC_SLI_REV4) { 598 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 599 MBOX_THD_UNLOCKED); 600 login_mbox = NULL; 601 } else { 602 /* In order to preserve RPIs, we want to cleanup 603 * the default RPI the firmware created to rcv 604 * this ELS request. The only way to do this is 605 * to register, then unregister the RPI. 606 */ 607 spin_lock_irq(&ndlp->lock); 608 ndlp->nlp_flag |= (NLP_RM_DFLT_RPI | NLP_ACC_REGLOGIN | 609 NLP_RCV_PLOGI); 610 spin_unlock_irq(&ndlp->lock); 611 } 612 613 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 614 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 615 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 616 ndlp, login_mbox); 617 if (rc && login_mbox) 618 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 619 MBOX_THD_UNLOCKED); 620 return 1; 621 } 622 623 /* So the order here should be: 624 * SLI3 pt2pt 625 * Issue CONFIG_LINK mbox 626 * CONFIG_LINK cmpl 627 * SLI4 pt2pt 628 * Issue REG_VFI mbox 629 * REG_VFI cmpl 630 * SLI4 631 * Issue UNREG RPI mbx 632 * UNREG RPI cmpl 633 * Issue REG_RPI mbox 634 * REG RPI cmpl 635 * Issue PLOGI ACC 636 * PLOGI ACC cmpl 637 */ 638 login_mbox->mbox_cmpl = lpfc_defer_plogi_acc; 639 login_mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 640 if (!login_mbox->ctx_ndlp) 641 goto out; 642 643 login_mbox->context3 = save_iocb; /* For PLOGI ACC */ 644 645 spin_lock_irq(&ndlp->lock); 646 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 647 spin_unlock_irq(&ndlp->lock); 648 649 /* Start the ball rolling by issuing REG_LOGIN here */ 650 rc = lpfc_sli_issue_mbox(phba, login_mbox, MBX_NOWAIT); 651 if (rc == MBX_NOT_FINISHED) { 652 lpfc_nlp_put(ndlp); 653 goto out; 654 } 655 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); 656 657 return 1; 658 out: 659 kfree(save_iocb); 660 if (login_mbox) 661 mempool_free(login_mbox, phba->mbox_mem_pool); 662 663 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 664 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 665 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 666 return 0; 667 } 668 669 /** 670 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 671 * @phba: pointer to lpfc hba data structure. 672 * @mboxq: pointer to mailbox object 673 * 674 * This routine is invoked to issue a completion to a rcv'ed 675 * ADISC or PDISC after the paused RPI has been resumed. 676 **/ 677 static void 678 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 679 { 680 struct lpfc_vport *vport; 681 struct lpfc_iocbq *elsiocb; 682 struct lpfc_nodelist *ndlp; 683 uint32_t cmd; 684 685 elsiocb = (struct lpfc_iocbq *)mboxq->ctx_buf; 686 ndlp = (struct lpfc_nodelist *)mboxq->ctx_ndlp; 687 vport = mboxq->vport; 688 cmd = elsiocb->drvrTimeout; 689 690 if (cmd == ELS_CMD_ADISC) { 691 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 692 } else { 693 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 694 ndlp, NULL); 695 } 696 697 /* This nlp_put pairs with lpfc_sli4_resume_rpi */ 698 lpfc_nlp_put(ndlp); 699 700 kfree(elsiocb); 701 mempool_free(mboxq, phba->mbox_mem_pool); 702 } 703 704 static int 705 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 706 struct lpfc_iocbq *cmdiocb) 707 { 708 struct lpfc_hba *phba = vport->phba; 709 struct lpfc_iocbq *elsiocb; 710 struct lpfc_dmabuf *pcmd; 711 struct serv_parm *sp; 712 struct lpfc_name *pnn, *ppn; 713 struct ls_rjt stat; 714 ADISC *ap; 715 uint32_t *lp; 716 uint32_t cmd; 717 718 pcmd = cmdiocb->cmd_dmabuf; 719 lp = (uint32_t *) pcmd->virt; 720 721 cmd = *lp++; 722 if (cmd == ELS_CMD_ADISC) { 723 ap = (ADISC *) lp; 724 pnn = (struct lpfc_name *) & ap->nodeName; 725 ppn = (struct lpfc_name *) & ap->portName; 726 } else { 727 sp = (struct serv_parm *) lp; 728 pnn = (struct lpfc_name *) & sp->nodeName; 729 ppn = (struct lpfc_name *) & sp->portName; 730 } 731 732 if (get_job_ulpstatus(phba, cmdiocb) == 0 && 733 lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 734 735 /* 736 * As soon as we send ACC, the remote NPort can 737 * start sending us data. Thus, for SLI4 we must 738 * resume the RPI before the ACC goes out. 739 */ 740 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 741 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 742 GFP_KERNEL); 743 if (elsiocb) { 744 /* Save info from cmd IOCB used in rsp */ 745 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 746 sizeof(struct lpfc_iocbq)); 747 748 /* Save the ELS cmd */ 749 elsiocb->drvrTimeout = cmd; 750 751 lpfc_sli4_resume_rpi(ndlp, 752 lpfc_mbx_cmpl_resume_rpi, elsiocb); 753 goto out; 754 } 755 } 756 757 if (cmd == ELS_CMD_ADISC) { 758 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 759 } else { 760 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 761 ndlp, NULL); 762 } 763 out: 764 /* If we are authenticated, move to the proper state. 765 * It is possible an ADISC arrived and the remote nport 766 * is already in MAPPED or UNMAPPED state. Catch this 767 * condition and don't set the nlp_state again because 768 * it causes an unnecessary transport unregister/register. 769 * 770 * Nodes marked for ADISC will move MAPPED or UNMAPPED state 771 * after issuing ADISC 772 */ 773 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 774 if ((ndlp->nlp_state != NLP_STE_MAPPED_NODE) && 775 !(ndlp->nlp_flag & NLP_NPR_ADISC)) 776 lpfc_nlp_set_state(vport, ndlp, 777 NLP_STE_MAPPED_NODE); 778 } 779 780 return 1; 781 } 782 /* Reject this request because invalid parameters */ 783 stat.un.b.lsRjtRsvd0 = 0; 784 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 785 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 786 stat.un.b.vendorUnique = 0; 787 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 788 789 /* 1 sec timeout */ 790 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 791 792 spin_lock_irq(&ndlp->lock); 793 ndlp->nlp_flag |= NLP_DELAY_TMO; 794 spin_unlock_irq(&ndlp->lock); 795 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 796 ndlp->nlp_prev_state = ndlp->nlp_state; 797 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 798 return 0; 799 } 800 801 static int 802 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 803 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 804 { 805 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 806 struct lpfc_hba *phba = vport->phba; 807 struct lpfc_vport **vports; 808 int i, active_vlink_present = 0 ; 809 810 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 811 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 812 * PLOGIs during LOGO storms from a device. 813 */ 814 spin_lock_irq(&ndlp->lock); 815 ndlp->nlp_flag |= NLP_LOGO_ACC; 816 spin_unlock_irq(&ndlp->lock); 817 if (els_cmd == ELS_CMD_PRLO) 818 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 819 else 820 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 821 822 /* This clause allows the initiator to ACC the LOGO back to the 823 * Fabric Domain Controller. It does deliberately skip all other 824 * steps because some fabrics send RDP requests after logging out 825 * from the initiator. 826 */ 827 if (ndlp->nlp_type & NLP_FABRIC && 828 ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK)) 829 return 0; 830 831 /* Notify transport of connectivity loss to trigger cleanup. */ 832 if (phba->nvmet_support && 833 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 834 lpfc_nvmet_invalidate_host(phba, ndlp); 835 836 if (ndlp->nlp_DID == Fabric_DID) { 837 if (vport->port_state <= LPFC_FDISC) 838 goto out; 839 lpfc_linkdown_port(vport); 840 spin_lock_irq(shost->host_lock); 841 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 842 spin_unlock_irq(shost->host_lock); 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 ((!(vports[i]->fc_flag & 848 FC_VPORT_LOGO_RCVD)) && 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 (!(vport->load_flag & FC_UNLOADING) && 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 spin_lock_irq(shost->host_lock); 877 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 878 spin_unlock_irq(shost->host_lock); 879 lpfc_retry_pport_discovery(phba); 880 } 881 } else if ((!(ndlp->nlp_type & NLP_FABRIC) && 882 ((ndlp->nlp_type & NLP_FCP_TARGET) || 883 (ndlp->nlp_type & NLP_NVME_TARGET) || 884 (vport->fc_flag & FC_PT2PT))) || 885 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { 886 /* Only try to re-login if this is NOT a Fabric Node 887 * AND the remote NPORT is a FCP/NVME Target or we 888 * are in pt2pt mode. NLP_STE_ADISC_ISSUE is a special 889 * case for LOGO as a response to ADISC behavior. 890 */ 891 mod_timer(&ndlp->nlp_delayfunc, 892 jiffies + msecs_to_jiffies(1000 * 1)); 893 spin_lock_irq(&ndlp->lock); 894 ndlp->nlp_flag |= NLP_DELAY_TMO; 895 spin_unlock_irq(&ndlp->lock); 896 897 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 898 } 899 out: 900 /* Unregister from backend, could have been skipped due to ADISC */ 901 lpfc_nlp_unreg_node(vport, ndlp); 902 903 ndlp->nlp_prev_state = ndlp->nlp_state; 904 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 905 906 spin_lock_irq(&ndlp->lock); 907 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 908 spin_unlock_irq(&ndlp->lock); 909 /* The driver has to wait until the ACC completes before it continues 910 * processing the LOGO. The action will resume in 911 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 912 * unreg_login, the driver waits so the ACC does not get aborted. 913 */ 914 return 0; 915 } 916 917 static uint32_t 918 lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 919 struct lpfc_nodelist *ndlp, 920 struct lpfc_iocbq *cmdiocb) 921 { 922 struct ls_rjt stat; 923 uint32_t *payload; 924 uint32_t cmd; 925 926 payload = cmdiocb->cmd_dmabuf->virt; 927 cmd = *payload; 928 if (vport->phba->nvmet_support) { 929 /* Must be a NVME PRLI */ 930 if (cmd == ELS_CMD_PRLI) 931 goto out; 932 } else { 933 /* Initiator mode. */ 934 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 935 goto out; 936 } 937 return 1; 938 out: 939 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC, 940 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 941 "state x%x flags x%x\n", 942 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 943 ndlp->nlp_flag); 944 memset(&stat, 0, sizeof(struct ls_rjt)); 945 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 946 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 947 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 948 ndlp, NULL); 949 return 0; 950 } 951 952 static void 953 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 954 struct lpfc_iocbq *cmdiocb) 955 { 956 struct lpfc_hba *phba = vport->phba; 957 struct lpfc_dmabuf *pcmd; 958 uint32_t *lp; 959 PRLI *npr; 960 struct fc_rport *rport = ndlp->rport; 961 u32 roles; 962 963 pcmd = cmdiocb->cmd_dmabuf; 964 lp = (uint32_t *)pcmd->virt; 965 npr = (PRLI *)((uint8_t *)lp + sizeof(uint32_t)); 966 967 if ((npr->prliType == PRLI_FCP_TYPE) || 968 (npr->prliType == PRLI_NVME_TYPE)) { 969 if (npr->initiatorFunc) { 970 if (npr->prliType == PRLI_FCP_TYPE) 971 ndlp->nlp_type |= NLP_FCP_INITIATOR; 972 if (npr->prliType == PRLI_NVME_TYPE) 973 ndlp->nlp_type |= NLP_NVME_INITIATOR; 974 } 975 if (npr->targetFunc) { 976 if (npr->prliType == PRLI_FCP_TYPE) 977 ndlp->nlp_type |= NLP_FCP_TARGET; 978 if (npr->prliType == PRLI_NVME_TYPE) 979 ndlp->nlp_type |= NLP_NVME_TARGET; 980 if (npr->writeXferRdyDis) 981 ndlp->nlp_flag |= NLP_FIRSTBURST; 982 } 983 if (npr->Retry && ndlp->nlp_type & 984 (NLP_FCP_INITIATOR | NLP_FCP_TARGET)) 985 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 986 987 if (npr->Retry && phba->nsler && 988 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET)) 989 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 990 991 992 /* If this driver is in nvme target mode, set the ndlp's fc4 993 * type to NVME provided the PRLI response claims NVME FC4 994 * type. Target mode does not issue gft_id so doesn't get 995 * the fc4 type set until now. 996 */ 997 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 998 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 999 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1000 } 1001 1002 /* Fabric Controllers send FCP PRLI as an initiator but should 1003 * not get recognized as FCP type and registered with transport. 1004 */ 1005 if (npr->prliType == PRLI_FCP_TYPE && 1006 !(ndlp->nlp_type & NLP_FABRIC)) 1007 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1008 } 1009 if (rport) { 1010 /* We need to update the rport role values */ 1011 roles = FC_RPORT_ROLE_UNKNOWN; 1012 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 1013 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 1014 if (ndlp->nlp_type & NLP_FCP_TARGET) 1015 roles |= FC_RPORT_ROLE_FCP_TARGET; 1016 1017 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 1018 "rport rolechg: role:x%x did:x%x flg:x%x", 1019 roles, ndlp->nlp_DID, ndlp->nlp_flag); 1020 1021 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1022 fc_remote_port_rolechg(rport, roles); 1023 } 1024 } 1025 1026 static uint32_t 1027 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 1028 { 1029 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 1030 spin_lock_irq(&ndlp->lock); 1031 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1032 spin_unlock_irq(&ndlp->lock); 1033 return 0; 1034 } 1035 1036 if (!(vport->fc_flag & FC_PT2PT)) { 1037 /* Check config parameter use-adisc or FCP-2 */ 1038 if (vport->cfg_use_adisc && ((vport->fc_flag & FC_RSCN_MODE) || 1039 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 1040 (ndlp->nlp_type & NLP_FCP_TARGET)))) { 1041 spin_lock_irq(&ndlp->lock); 1042 ndlp->nlp_flag |= NLP_NPR_ADISC; 1043 spin_unlock_irq(&ndlp->lock); 1044 return 1; 1045 } 1046 } 1047 1048 spin_lock_irq(&ndlp->lock); 1049 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1050 spin_unlock_irq(&ndlp->lock); 1051 lpfc_unreg_rpi(vport, ndlp); 1052 return 0; 1053 } 1054 1055 /** 1056 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 1057 * @phba : Pointer to lpfc_hba structure. 1058 * @vport: Pointer to lpfc_vport structure. 1059 * @ndlp: Pointer to lpfc_nodelist structure. 1060 * @rpi : rpi to be release. 1061 * 1062 * This function will send a unreg_login mailbox command to the firmware 1063 * to release a rpi. 1064 **/ 1065 static void 1066 lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, 1067 struct lpfc_nodelist *ndlp, uint16_t rpi) 1068 { 1069 LPFC_MBOXQ_t *pmb; 1070 int rc; 1071 1072 /* If there is already an UNREG in progress for this ndlp, 1073 * no need to queue up another one. 1074 */ 1075 if (ndlp->nlp_flag & NLP_UNREG_INP) { 1076 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1077 "1435 release_rpi SKIP UNREG x%x on " 1078 "NPort x%x deferred x%x flg x%x " 1079 "Data: x%px\n", 1080 ndlp->nlp_rpi, ndlp->nlp_DID, 1081 ndlp->nlp_defer_did, 1082 ndlp->nlp_flag, ndlp); 1083 return; 1084 } 1085 1086 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 1087 GFP_KERNEL); 1088 if (!pmb) 1089 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1090 "2796 mailbox memory allocation failed \n"); 1091 else { 1092 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 1093 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1094 pmb->vport = vport; 1095 pmb->ctx_ndlp = lpfc_nlp_get(ndlp); 1096 if (!pmb->ctx_ndlp) { 1097 mempool_free(pmb, phba->mbox_mem_pool); 1098 return; 1099 } 1100 1101 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 1102 (!(vport->fc_flag & FC_OFFLINE_MODE))) 1103 ndlp->nlp_flag |= NLP_UNREG_INP; 1104 1105 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1106 "1437 release_rpi UNREG x%x " 1107 "on NPort x%x flg x%x\n", 1108 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); 1109 1110 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 1111 if (rc == MBX_NOT_FINISHED) { 1112 lpfc_nlp_put(ndlp); 1113 mempool_free(pmb, phba->mbox_mem_pool); 1114 } 1115 } 1116 } 1117 1118 static uint32_t 1119 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1120 void *arg, uint32_t evt) 1121 { 1122 struct lpfc_hba *phba; 1123 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1124 uint16_t rpi; 1125 1126 phba = vport->phba; 1127 /* Release the RPI if reglogin completing */ 1128 if (!(phba->pport->load_flag & FC_UNLOADING) && 1129 (evt == NLP_EVT_CMPL_REG_LOGIN) && 1130 (!pmb->u.mb.mbxStatus)) { 1131 rpi = pmb->u.mb.un.varWords[0]; 1132 lpfc_release_rpi(phba, vport, ndlp, rpi); 1133 } 1134 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1135 "0271 Illegal State Transition: node x%x " 1136 "event x%x, state x%x Data: x%x x%x\n", 1137 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1138 ndlp->nlp_flag); 1139 return ndlp->nlp_state; 1140 } 1141 1142 static uint32_t 1143 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1144 void *arg, uint32_t evt) 1145 { 1146 /* This transition is only legal if we previously 1147 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 1148 * working on the same NPortID, do nothing for this thread 1149 * to stop it. 1150 */ 1151 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 1152 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1153 "0272 Illegal State Transition: node x%x " 1154 "event x%x, state x%x Data: x%x x%x\n", 1155 ndlp->nlp_DID, evt, ndlp->nlp_state, 1156 ndlp->nlp_rpi, ndlp->nlp_flag); 1157 } 1158 return ndlp->nlp_state; 1159 } 1160 1161 /* Start of Discovery State Machine routines */ 1162 1163 static uint32_t 1164 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1165 void *arg, uint32_t evt) 1166 { 1167 struct lpfc_iocbq *cmdiocb; 1168 1169 cmdiocb = (struct lpfc_iocbq *) arg; 1170 1171 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1172 return ndlp->nlp_state; 1173 } 1174 return NLP_STE_FREED_NODE; 1175 } 1176 1177 static uint32_t 1178 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1179 void *arg, uint32_t evt) 1180 { 1181 lpfc_issue_els_logo(vport, ndlp, 0); 1182 return ndlp->nlp_state; 1183 } 1184 1185 static uint32_t 1186 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1187 void *arg, uint32_t evt) 1188 { 1189 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1190 1191 spin_lock_irq(&ndlp->lock); 1192 ndlp->nlp_flag |= NLP_LOGO_ACC; 1193 spin_unlock_irq(&ndlp->lock); 1194 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1195 1196 return ndlp->nlp_state; 1197 } 1198 1199 static uint32_t 1200 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1201 void *arg, uint32_t evt) 1202 { 1203 return NLP_STE_FREED_NODE; 1204 } 1205 1206 static uint32_t 1207 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1208 void *arg, uint32_t evt) 1209 { 1210 return NLP_STE_FREED_NODE; 1211 } 1212 1213 static uint32_t 1214 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 1215 struct lpfc_nodelist *ndlp, 1216 void *arg, uint32_t evt) 1217 { 1218 return ndlp->nlp_state; 1219 } 1220 1221 static uint32_t 1222 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1223 void *arg, uint32_t evt) 1224 { 1225 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1226 struct lpfc_hba *phba = vport->phba; 1227 struct lpfc_iocbq *cmdiocb = arg; 1228 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 1229 uint32_t *lp = (uint32_t *) pcmd->virt; 1230 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1231 struct ls_rjt stat; 1232 int port_cmp; 1233 1234 memset(&stat, 0, sizeof (struct ls_rjt)); 1235 1236 /* For a PLOGI, we only accept if our portname is less 1237 * than the remote portname. 1238 */ 1239 phba->fc_stat.elsLogiCol++; 1240 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1241 sizeof(struct lpfc_name)); 1242 1243 if (port_cmp >= 0) { 1244 /* Reject this request because the remote node will accept 1245 ours */ 1246 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1247 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1248 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1249 NULL); 1250 } else { 1251 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1252 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 1253 (vport->num_disc_nodes)) { 1254 spin_lock_irq(&ndlp->lock); 1255 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1256 spin_unlock_irq(&ndlp->lock); 1257 /* Check if there are more PLOGIs to be sent */ 1258 lpfc_more_plogi(vport); 1259 if (vport->num_disc_nodes == 0) { 1260 spin_lock_irq(shost->host_lock); 1261 vport->fc_flag &= ~FC_NDISC_ACTIVE; 1262 spin_unlock_irq(shost->host_lock); 1263 lpfc_can_disctmo(vport); 1264 lpfc_end_rscn(vport); 1265 } 1266 } 1267 } /* If our portname was less */ 1268 1269 return ndlp->nlp_state; 1270 } 1271 1272 static uint32_t 1273 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1274 void *arg, uint32_t evt) 1275 { 1276 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1277 struct ls_rjt stat; 1278 1279 memset(&stat, 0, sizeof (struct ls_rjt)); 1280 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1281 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1282 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1283 return ndlp->nlp_state; 1284 } 1285 1286 static uint32_t 1287 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1288 void *arg, uint32_t evt) 1289 { 1290 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1291 1292 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1293 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1294 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1295 /* software abort outstanding PLOGI */ 1296 lpfc_els_abort(vport->phba, ndlp); 1297 1298 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1299 return ndlp->nlp_state; 1300 } 1301 1302 static uint32_t 1303 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1304 void *arg, uint32_t evt) 1305 { 1306 struct lpfc_hba *phba = vport->phba; 1307 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1308 1309 /* software abort outstanding PLOGI */ 1310 lpfc_els_abort(phba, ndlp); 1311 1312 if (evt == NLP_EVT_RCV_LOGO) { 1313 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1314 } else { 1315 lpfc_issue_els_logo(vport, ndlp, 0); 1316 } 1317 1318 /* Put ndlp in npr state set plogi timer for 1 sec */ 1319 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1320 spin_lock_irq(&ndlp->lock); 1321 ndlp->nlp_flag |= NLP_DELAY_TMO; 1322 spin_unlock_irq(&ndlp->lock); 1323 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1324 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1325 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1326 1327 return ndlp->nlp_state; 1328 } 1329 1330 static uint32_t 1331 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1332 struct lpfc_nodelist *ndlp, 1333 void *arg, 1334 uint32_t evt) 1335 { 1336 struct lpfc_hba *phba = vport->phba; 1337 struct lpfc_iocbq *cmdiocb, *rspiocb; 1338 struct lpfc_dmabuf *pcmd, *prsp; 1339 uint32_t *lp; 1340 uint32_t vid, flag; 1341 struct serv_parm *sp; 1342 uint32_t ed_tov; 1343 LPFC_MBOXQ_t *mbox; 1344 int rc; 1345 u32 ulp_status; 1346 u32 did; 1347 1348 cmdiocb = (struct lpfc_iocbq *) arg; 1349 rspiocb = cmdiocb->rsp_iocb; 1350 1351 ulp_status = get_job_ulpstatus(phba, rspiocb); 1352 1353 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1354 /* Recovery from PLOGI collision logic */ 1355 return ndlp->nlp_state; 1356 } 1357 1358 if (ulp_status) 1359 goto out; 1360 1361 pcmd = cmdiocb->cmd_dmabuf; 1362 1363 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1364 if (!prsp) 1365 goto out; 1366 1367 lp = (uint32_t *) prsp->virt; 1368 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1369 1370 /* Some switches have FDMI servers returning 0 for WWN */ 1371 if ((ndlp->nlp_DID != FDMI_DID) && 1372 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1373 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1374 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1375 "0142 PLOGI RSP: Invalid WWN.\n"); 1376 goto out; 1377 } 1378 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1379 goto out; 1380 /* PLOGI chkparm OK */ 1381 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1382 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1383 ndlp->nlp_DID, ndlp->nlp_state, 1384 ndlp->nlp_flag, ndlp->nlp_rpi); 1385 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1386 ndlp->nlp_fcp_info |= CLASS2; 1387 else 1388 ndlp->nlp_fcp_info |= CLASS3; 1389 1390 ndlp->nlp_class_sup = 0; 1391 if (sp->cls1.classValid) 1392 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1393 if (sp->cls2.classValid) 1394 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1395 if (sp->cls3.classValid) 1396 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1397 if (sp->cls4.classValid) 1398 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1399 ndlp->nlp_maxframe = 1400 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1401 1402 if ((vport->fc_flag & FC_PT2PT) && 1403 (vport->fc_flag & FC_PT2PT_PLOGI)) { 1404 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1405 if (sp->cmn.edtovResolution) { 1406 /* E_D_TOV ticks are in nanoseconds */ 1407 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1408 } 1409 1410 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 1411 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1412 sp->cmn.valid_vendor_ver_level) { 1413 vid = be32_to_cpu(sp->un.vv.vid); 1414 flag = be32_to_cpu(sp->un.vv.flags); 1415 if ((vid == LPFC_VV_EMLX_ID) && 1416 (flag & LPFC_VV_SUPPRESS_RSP)) 1417 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 1418 } 1419 1420 /* 1421 * Use the larger EDTOV 1422 * RATOV = 2 * EDTOV for pt-to-pt 1423 */ 1424 if (ed_tov > phba->fc_edtov) 1425 phba->fc_edtov = ed_tov; 1426 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1427 1428 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1429 1430 /* Issue config_link / reg_vfi to account for updated TOV's */ 1431 if (phba->sli_rev == LPFC_SLI_REV4) { 1432 lpfc_issue_reg_vfi(vport); 1433 } else { 1434 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1435 if (!mbox) { 1436 lpfc_printf_vlog(vport, KERN_ERR, 1437 LOG_TRACE_EVENT, 1438 "0133 PLOGI: no memory " 1439 "for config_link " 1440 "Data: x%x x%x x%x x%x\n", 1441 ndlp->nlp_DID, ndlp->nlp_state, 1442 ndlp->nlp_flag, ndlp->nlp_rpi); 1443 goto out; 1444 } 1445 1446 lpfc_config_link(phba, mbox); 1447 1448 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1449 mbox->vport = vport; 1450 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1451 if (rc == MBX_NOT_FINISHED) { 1452 mempool_free(mbox, phba->mbox_mem_pool); 1453 goto out; 1454 } 1455 } 1456 } 1457 1458 lpfc_unreg_rpi(vport, ndlp); 1459 1460 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1461 if (!mbox) { 1462 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1463 "0018 PLOGI: no memory for reg_login " 1464 "Data: x%x x%x x%x x%x\n", 1465 ndlp->nlp_DID, ndlp->nlp_state, 1466 ndlp->nlp_flag, ndlp->nlp_rpi); 1467 goto out; 1468 } 1469 1470 did = get_job_els_rsp64_did(phba, cmdiocb); 1471 1472 if (lpfc_reg_rpi(phba, vport->vpi, did, 1473 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1474 switch (ndlp->nlp_DID) { 1475 case NameServer_DID: 1476 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1477 /* Fabric Controller Node needs these parameters. */ 1478 memcpy(&ndlp->fc_sparam, sp, sizeof(struct serv_parm)); 1479 break; 1480 case FDMI_DID: 1481 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1482 break; 1483 default: 1484 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1485 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1486 } 1487 1488 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1489 if (!mbox->ctx_ndlp) 1490 goto out; 1491 1492 mbox->vport = vport; 1493 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1494 != MBX_NOT_FINISHED) { 1495 lpfc_nlp_set_state(vport, ndlp, 1496 NLP_STE_REG_LOGIN_ISSUE); 1497 return ndlp->nlp_state; 1498 } 1499 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1500 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1501 /* decrement node reference count to the failed mbox 1502 * command 1503 */ 1504 lpfc_nlp_put(ndlp); 1505 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 1506 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1507 "0134 PLOGI: cannot issue reg_login " 1508 "Data: x%x x%x x%x x%x\n", 1509 ndlp->nlp_DID, ndlp->nlp_state, 1510 ndlp->nlp_flag, ndlp->nlp_rpi); 1511 } else { 1512 mempool_free(mbox, phba->mbox_mem_pool); 1513 1514 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1515 "0135 PLOGI: cannot format reg_login " 1516 "Data: x%x x%x x%x x%x\n", 1517 ndlp->nlp_DID, ndlp->nlp_state, 1518 ndlp->nlp_flag, ndlp->nlp_rpi); 1519 } 1520 1521 1522 out: 1523 if (ndlp->nlp_DID == NameServer_DID) { 1524 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1525 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1526 "0261 Cannot Register NameServer login\n"); 1527 } 1528 1529 /* 1530 ** In case the node reference counter does not go to zero, ensure that 1531 ** the stale state for the node is not processed. 1532 */ 1533 1534 ndlp->nlp_prev_state = ndlp->nlp_state; 1535 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1536 return NLP_STE_FREED_NODE; 1537 } 1538 1539 static uint32_t 1540 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1541 void *arg, uint32_t evt) 1542 { 1543 return ndlp->nlp_state; 1544 } 1545 1546 static uint32_t 1547 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1548 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1549 { 1550 struct lpfc_hba *phba; 1551 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1552 MAILBOX_t *mb = &pmb->u.mb; 1553 uint16_t rpi; 1554 1555 phba = vport->phba; 1556 /* Release the RPI */ 1557 if (!(phba->pport->load_flag & FC_UNLOADING) && 1558 !mb->mbxStatus) { 1559 rpi = pmb->u.mb.un.varWords[0]; 1560 lpfc_release_rpi(phba, vport, ndlp, rpi); 1561 } 1562 return ndlp->nlp_state; 1563 } 1564 1565 static uint32_t 1566 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1567 void *arg, uint32_t evt) 1568 { 1569 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1570 spin_lock_irq(&ndlp->lock); 1571 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1572 spin_unlock_irq(&ndlp->lock); 1573 return ndlp->nlp_state; 1574 } else { 1575 /* software abort outstanding PLOGI */ 1576 lpfc_els_abort(vport->phba, ndlp); 1577 1578 lpfc_drop_node(vport, ndlp); 1579 return NLP_STE_FREED_NODE; 1580 } 1581 } 1582 1583 static uint32_t 1584 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1585 struct lpfc_nodelist *ndlp, 1586 void *arg, 1587 uint32_t evt) 1588 { 1589 struct lpfc_hba *phba = vport->phba; 1590 1591 /* Don't do anything that will mess up processing of the 1592 * previous RSCN. 1593 */ 1594 if (vport->fc_flag & FC_RSCN_DEFERRED) 1595 return ndlp->nlp_state; 1596 1597 /* software abort outstanding PLOGI */ 1598 lpfc_els_abort(phba, ndlp); 1599 1600 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1601 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1602 spin_lock_irq(&ndlp->lock); 1603 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1604 spin_unlock_irq(&ndlp->lock); 1605 1606 return ndlp->nlp_state; 1607 } 1608 1609 static uint32_t 1610 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1611 void *arg, uint32_t evt) 1612 { 1613 struct lpfc_hba *phba = vport->phba; 1614 struct lpfc_iocbq *cmdiocb; 1615 1616 /* software abort outstanding ADISC */ 1617 lpfc_els_abort(phba, ndlp); 1618 1619 cmdiocb = (struct lpfc_iocbq *) arg; 1620 1621 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1622 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1623 spin_lock_irq(&ndlp->lock); 1624 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1625 spin_unlock_irq(&ndlp->lock); 1626 if (vport->num_disc_nodes) 1627 lpfc_more_adisc(vport); 1628 } 1629 return ndlp->nlp_state; 1630 } 1631 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1632 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1633 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1634 1635 return ndlp->nlp_state; 1636 } 1637 1638 static uint32_t 1639 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1640 void *arg, uint32_t evt) 1641 { 1642 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1643 1644 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1645 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1646 return ndlp->nlp_state; 1647 } 1648 1649 static uint32_t 1650 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1651 void *arg, uint32_t evt) 1652 { 1653 struct lpfc_hba *phba = vport->phba; 1654 struct lpfc_iocbq *cmdiocb; 1655 1656 cmdiocb = (struct lpfc_iocbq *) arg; 1657 1658 /* software abort outstanding ADISC */ 1659 lpfc_els_abort(phba, ndlp); 1660 1661 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1662 return ndlp->nlp_state; 1663 } 1664 1665 static uint32_t 1666 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1667 struct lpfc_nodelist *ndlp, 1668 void *arg, uint32_t evt) 1669 { 1670 struct lpfc_iocbq *cmdiocb; 1671 1672 cmdiocb = (struct lpfc_iocbq *) arg; 1673 1674 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1675 return ndlp->nlp_state; 1676 } 1677 1678 static uint32_t 1679 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1680 void *arg, uint32_t evt) 1681 { 1682 struct lpfc_iocbq *cmdiocb; 1683 1684 cmdiocb = (struct lpfc_iocbq *) arg; 1685 1686 /* Treat like rcv logo */ 1687 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1688 return ndlp->nlp_state; 1689 } 1690 1691 static uint32_t 1692 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1693 struct lpfc_nodelist *ndlp, 1694 void *arg, uint32_t evt) 1695 { 1696 struct lpfc_hba *phba = vport->phba; 1697 struct lpfc_iocbq *cmdiocb, *rspiocb; 1698 ADISC *ap; 1699 int rc; 1700 u32 ulp_status; 1701 1702 cmdiocb = (struct lpfc_iocbq *) arg; 1703 rspiocb = cmdiocb->rsp_iocb; 1704 1705 ulp_status = get_job_ulpstatus(phba, rspiocb); 1706 1707 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1708 1709 if ((ulp_status) || 1710 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1711 /* 1 sec timeout */ 1712 mod_timer(&ndlp->nlp_delayfunc, 1713 jiffies + msecs_to_jiffies(1000)); 1714 spin_lock_irq(&ndlp->lock); 1715 ndlp->nlp_flag |= NLP_DELAY_TMO; 1716 spin_unlock_irq(&ndlp->lock); 1717 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1718 1719 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1720 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1721 lpfc_unreg_rpi(vport, ndlp); 1722 return ndlp->nlp_state; 1723 } 1724 1725 if (phba->sli_rev == LPFC_SLI_REV4) { 1726 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1727 if (rc) { 1728 /* Stay in state and retry. */ 1729 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1730 return ndlp->nlp_state; 1731 } 1732 } 1733 1734 if (ndlp->nlp_type & NLP_FCP_TARGET) 1735 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1736 1737 if (ndlp->nlp_type & NLP_NVME_TARGET) 1738 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1739 1740 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 1741 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1742 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1743 } else { 1744 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1745 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1746 } 1747 1748 return ndlp->nlp_state; 1749 } 1750 1751 static uint32_t 1752 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1753 void *arg, uint32_t evt) 1754 { 1755 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1756 spin_lock_irq(&ndlp->lock); 1757 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1758 spin_unlock_irq(&ndlp->lock); 1759 return ndlp->nlp_state; 1760 } else { 1761 /* software abort outstanding ADISC */ 1762 lpfc_els_abort(vport->phba, ndlp); 1763 1764 lpfc_drop_node(vport, ndlp); 1765 return NLP_STE_FREED_NODE; 1766 } 1767 } 1768 1769 static uint32_t 1770 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1771 struct lpfc_nodelist *ndlp, 1772 void *arg, 1773 uint32_t evt) 1774 { 1775 struct lpfc_hba *phba = vport->phba; 1776 1777 /* Don't do anything that will mess up processing of the 1778 * previous RSCN. 1779 */ 1780 if (vport->fc_flag & FC_RSCN_DEFERRED) 1781 return ndlp->nlp_state; 1782 1783 /* software abort outstanding ADISC */ 1784 lpfc_els_abort(phba, ndlp); 1785 1786 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1787 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1788 spin_lock_irq(&ndlp->lock); 1789 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1790 spin_unlock_irq(&ndlp->lock); 1791 lpfc_disc_set_adisc(vport, ndlp); 1792 return ndlp->nlp_state; 1793 } 1794 1795 static uint32_t 1796 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1797 struct lpfc_nodelist *ndlp, 1798 void *arg, 1799 uint32_t evt) 1800 { 1801 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1802 1803 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1804 return ndlp->nlp_state; 1805 } 1806 1807 static uint32_t 1808 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1809 struct lpfc_nodelist *ndlp, 1810 void *arg, 1811 uint32_t evt) 1812 { 1813 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1814 struct ls_rjt stat; 1815 1816 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1817 return ndlp->nlp_state; 1818 } 1819 if (vport->phba->nvmet_support) { 1820 /* NVME Target mode. Handle and respond to the PRLI and 1821 * transition to UNMAPPED provided the RPI has completed 1822 * registration. 1823 */ 1824 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 1825 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1826 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1827 } else { 1828 /* RPI registration has not completed. Reject the PRLI 1829 * to prevent an illegal state transition when the 1830 * rpi registration does complete. 1831 */ 1832 memset(&stat, 0, sizeof(struct ls_rjt)); 1833 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1834 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1835 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1836 ndlp, NULL); 1837 return ndlp->nlp_state; 1838 } 1839 } else { 1840 /* Initiator mode. */ 1841 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1842 } 1843 return ndlp->nlp_state; 1844 } 1845 1846 static uint32_t 1847 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1848 struct lpfc_nodelist *ndlp, 1849 void *arg, 1850 uint32_t evt) 1851 { 1852 struct lpfc_hba *phba = vport->phba; 1853 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1854 LPFC_MBOXQ_t *mb; 1855 LPFC_MBOXQ_t *nextmb; 1856 struct lpfc_nodelist *ns_ndlp; 1857 1858 cmdiocb = (struct lpfc_iocbq *) arg; 1859 1860 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1861 if ((mb = phba->sli.mbox_active)) { 1862 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1863 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1864 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1865 lpfc_nlp_put(ndlp); 1866 mb->ctx_ndlp = NULL; 1867 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1868 } 1869 } 1870 1871 spin_lock_irq(&phba->hbalock); 1872 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1873 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1874 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1875 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1876 lpfc_nlp_put(ndlp); 1877 list_del(&mb->list); 1878 phba->sli.mboxq_cnt--; 1879 lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_LOCKED); 1880 } 1881 } 1882 spin_unlock_irq(&phba->hbalock); 1883 1884 /* software abort if any GID_FT is outstanding */ 1885 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 1886 ns_ndlp = lpfc_findnode_did(vport, NameServer_DID); 1887 if (ns_ndlp) 1888 lpfc_els_abort(phba, ns_ndlp); 1889 } 1890 1891 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1892 return ndlp->nlp_state; 1893 } 1894 1895 static uint32_t 1896 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1897 struct lpfc_nodelist *ndlp, 1898 void *arg, 1899 uint32_t evt) 1900 { 1901 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1902 1903 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1904 return ndlp->nlp_state; 1905 } 1906 1907 static uint32_t 1908 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1909 struct lpfc_nodelist *ndlp, 1910 void *arg, 1911 uint32_t evt) 1912 { 1913 struct lpfc_iocbq *cmdiocb; 1914 1915 cmdiocb = (struct lpfc_iocbq *) arg; 1916 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1917 return ndlp->nlp_state; 1918 } 1919 1920 static uint32_t 1921 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1922 struct lpfc_nodelist *ndlp, 1923 void *arg, 1924 uint32_t evt) 1925 { 1926 struct lpfc_hba *phba = vport->phba; 1927 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1928 MAILBOX_t *mb = &pmb->u.mb; 1929 uint32_t did = mb->un.varWords[1]; 1930 1931 if (mb->mbxStatus) { 1932 /* RegLogin failed */ 1933 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1934 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1935 "x%x\n", 1936 did, mb->mbxStatus, vport->port_state, 1937 mb->un.varRegLogin.vpi, 1938 mb->un.varRegLogin.rpi); 1939 /* 1940 * If RegLogin failed due to lack of HBA resources do not 1941 * retry discovery. 1942 */ 1943 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1944 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1945 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1946 return ndlp->nlp_state; 1947 } 1948 1949 /* Put ndlp in npr state set plogi timer for 1 sec */ 1950 mod_timer(&ndlp->nlp_delayfunc, 1951 jiffies + msecs_to_jiffies(1000 * 1)); 1952 spin_lock_irq(&ndlp->lock); 1953 ndlp->nlp_flag |= NLP_DELAY_TMO; 1954 spin_unlock_irq(&ndlp->lock); 1955 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1956 1957 lpfc_issue_els_logo(vport, ndlp, 0); 1958 return ndlp->nlp_state; 1959 } 1960 1961 /* SLI4 ports have preallocated logical rpis. */ 1962 if (phba->sli_rev < LPFC_SLI_REV4) 1963 ndlp->nlp_rpi = mb->un.varWords[0]; 1964 1965 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1966 1967 /* Only if we are not a fabric nport do we issue PRLI */ 1968 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1969 "3066 RegLogin Complete on x%x x%x x%x\n", 1970 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 1971 if (!(ndlp->nlp_type & NLP_FABRIC) && 1972 (phba->nvmet_support == 0)) { 1973 /* The driver supports FCP and NVME concurrently. If the 1974 * ndlp's nlp_fc4_type is still zero, the driver doesn't 1975 * know what PRLI to send yet. Figure that out now and 1976 * call PRLI depending on the outcome. 1977 */ 1978 if (vport->fc_flag & FC_PT2PT) { 1979 /* If we are pt2pt, there is no Fabric to determine 1980 * the FC4 type of the remote nport. So if NVME 1981 * is configured try it. 1982 */ 1983 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1984 if ((!(vport->fc_flag & FC_PT2PT_NO_NVME)) && 1985 (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH || 1986 vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1987 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1988 /* We need to update the localport also */ 1989 lpfc_nvme_update_localport(vport); 1990 } 1991 1992 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 1993 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1994 1995 } else if (ndlp->nlp_fc4_type == 0) { 1996 /* If we are only configured for FCP, the driver 1997 * should just issue PRLI for FCP. Otherwise issue 1998 * GFT_ID to determine if remote port supports NVME. 1999 */ 2000 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 2001 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0, 2002 ndlp->nlp_DID); 2003 return ndlp->nlp_state; 2004 } 2005 ndlp->nlp_fc4_type = NLP_FC4_FCP; 2006 } 2007 2008 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2009 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 2010 if (lpfc_issue_els_prli(vport, ndlp, 0)) { 2011 lpfc_issue_els_logo(vport, ndlp, 0); 2012 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2013 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2014 } 2015 } else { 2016 if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support) 2017 phba->targetport->port_id = vport->fc_myDID; 2018 2019 /* Only Fabric ports should transition. NVME target 2020 * must complete PRLI. 2021 */ 2022 if (ndlp->nlp_type & NLP_FABRIC) { 2023 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2024 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2025 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2026 } 2027 } 2028 return ndlp->nlp_state; 2029 } 2030 2031 static uint32_t 2032 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 2033 struct lpfc_nodelist *ndlp, 2034 void *arg, 2035 uint32_t evt) 2036 { 2037 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2038 spin_lock_irq(&ndlp->lock); 2039 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2040 spin_unlock_irq(&ndlp->lock); 2041 return ndlp->nlp_state; 2042 } else { 2043 lpfc_drop_node(vport, ndlp); 2044 return NLP_STE_FREED_NODE; 2045 } 2046 } 2047 2048 static uint32_t 2049 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 2050 struct lpfc_nodelist *ndlp, 2051 void *arg, 2052 uint32_t evt) 2053 { 2054 /* Don't do anything that will mess up processing of the 2055 * previous RSCN. 2056 */ 2057 if (vport->fc_flag & FC_RSCN_DEFERRED) 2058 return ndlp->nlp_state; 2059 2060 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2061 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2062 spin_lock_irq(&ndlp->lock); 2063 2064 /* If we are a target we won't immediately transition into PRLI, 2065 * so if REG_LOGIN already completed we don't need to ignore it. 2066 */ 2067 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) || 2068 !vport->phba->nvmet_support) 2069 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 2070 2071 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2072 spin_unlock_irq(&ndlp->lock); 2073 lpfc_disc_set_adisc(vport, ndlp); 2074 return ndlp->nlp_state; 2075 } 2076 2077 static uint32_t 2078 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2079 void *arg, uint32_t evt) 2080 { 2081 struct lpfc_iocbq *cmdiocb; 2082 2083 cmdiocb = (struct lpfc_iocbq *) arg; 2084 2085 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2086 return ndlp->nlp_state; 2087 } 2088 2089 static uint32_t 2090 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2091 void *arg, uint32_t evt) 2092 { 2093 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2094 2095 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2096 return ndlp->nlp_state; 2097 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2098 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2099 return ndlp->nlp_state; 2100 } 2101 2102 static uint32_t 2103 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2104 void *arg, uint32_t evt) 2105 { 2106 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2107 2108 /* Software abort outstanding PRLI before sending acc */ 2109 lpfc_els_abort(vport->phba, ndlp); 2110 2111 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2112 return ndlp->nlp_state; 2113 } 2114 2115 static uint32_t 2116 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2117 void *arg, uint32_t evt) 2118 { 2119 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2120 2121 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2122 return ndlp->nlp_state; 2123 } 2124 2125 /* This routine is envoked when we rcv a PRLO request from a nport 2126 * we are logged into. We should send back a PRLO rsp setting the 2127 * appropriate bits. 2128 * NEXT STATE = PRLI_ISSUE 2129 */ 2130 static uint32_t 2131 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2132 void *arg, uint32_t evt) 2133 { 2134 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2135 2136 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2137 return ndlp->nlp_state; 2138 } 2139 2140 static uint32_t 2141 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2142 void *arg, uint32_t evt) 2143 { 2144 struct lpfc_iocbq *cmdiocb, *rspiocb; 2145 struct lpfc_hba *phba = vport->phba; 2146 PRLI *npr; 2147 struct lpfc_nvme_prli *nvpr; 2148 void *temp_ptr; 2149 u32 ulp_status; 2150 2151 cmdiocb = (struct lpfc_iocbq *) arg; 2152 rspiocb = cmdiocb->rsp_iocb; 2153 2154 ulp_status = get_job_ulpstatus(phba, rspiocb); 2155 2156 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 2157 * format is different so NULL the two PRLI types so that the 2158 * driver correctly gets the correct context. 2159 */ 2160 npr = NULL; 2161 nvpr = NULL; 2162 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 2163 if (cmdiocb->cmd_flag & LPFC_PRLI_FCP_REQ) 2164 npr = (PRLI *) temp_ptr; 2165 else if (cmdiocb->cmd_flag & LPFC_PRLI_NVME_REQ) 2166 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 2167 2168 if (ulp_status) { 2169 if ((vport->port_type == LPFC_NPIV_PORT) && 2170 vport->cfg_restrict_login) { 2171 goto out; 2172 } 2173 2174 /* Adjust the nlp_type accordingly if the PRLI failed */ 2175 if (npr) 2176 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2177 if (nvpr) 2178 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 2179 2180 /* We can't set the DSM state till BOTH PRLIs complete */ 2181 goto out_err; 2182 } 2183 2184 if (npr && (npr->acceptRspCode == PRLI_REQ_EXECUTED) && 2185 (npr->prliType == PRLI_FCP_TYPE)) { 2186 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2187 "6028 FCP NPR PRLI Cmpl Init %d Target %d\n", 2188 npr->initiatorFunc, 2189 npr->targetFunc); 2190 if (npr->initiatorFunc) 2191 ndlp->nlp_type |= NLP_FCP_INITIATOR; 2192 if (npr->targetFunc) { 2193 ndlp->nlp_type |= NLP_FCP_TARGET; 2194 if (npr->writeXferRdyDis) 2195 ndlp->nlp_flag |= NLP_FIRSTBURST; 2196 } 2197 if (npr->Retry) 2198 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 2199 2200 } else if (nvpr && 2201 (bf_get_be32(prli_acc_rsp_code, nvpr) == 2202 PRLI_REQ_EXECUTED) && 2203 (bf_get_be32(prli_type_code, nvpr) == 2204 PRLI_NVME_TYPE)) { 2205 2206 /* Complete setting up the remote ndlp personality. */ 2207 if (bf_get_be32(prli_init, nvpr)) 2208 ndlp->nlp_type |= NLP_NVME_INITIATOR; 2209 2210 if (phba->nsler && bf_get_be32(prli_nsler, nvpr) && 2211 bf_get_be32(prli_conf, nvpr)) 2212 2213 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 2214 else 2215 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 2216 2217 /* Target driver cannot solicit NVME FB. */ 2218 if (bf_get_be32(prli_tgt, nvpr)) { 2219 /* Complete the nvme target roles. The transport 2220 * needs to know if the rport is capable of 2221 * discovery in addition to its role. 2222 */ 2223 ndlp->nlp_type |= NLP_NVME_TARGET; 2224 if (bf_get_be32(prli_disc, nvpr)) 2225 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 2226 2227 /* 2228 * If prli_fba is set, the Target supports FirstBurst. 2229 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 2230 * otherwise it defines the actual size supported by 2231 * the NVME Target. 2232 */ 2233 if ((bf_get_be32(prli_fba, nvpr) == 1) && 2234 (phba->cfg_nvme_enable_fb) && 2235 (!phba->nvmet_support)) { 2236 /* Both sides support FB. The target's first 2237 * burst size is a 512 byte encoded value. 2238 */ 2239 ndlp->nlp_flag |= NLP_FIRSTBURST; 2240 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2241 nvpr); 2242 2243 /* Expressed in units of 512 bytes */ 2244 if (ndlp->nvme_fb_size) 2245 ndlp->nvme_fb_size <<= 2246 LPFC_NVME_FB_SHIFT; 2247 else 2248 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2249 } 2250 } 2251 2252 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2253 "6029 NVME PRLI Cmpl w1 x%08x " 2254 "w4 x%08x w5 x%08x flag x%x, " 2255 "fcp_info x%x nlp_type x%x\n", 2256 be32_to_cpu(nvpr->word1), 2257 be32_to_cpu(nvpr->word4), 2258 be32_to_cpu(nvpr->word5), 2259 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2260 ndlp->nlp_type); 2261 } 2262 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2263 (vport->port_type == LPFC_NPIV_PORT) && 2264 vport->cfg_restrict_login) { 2265 out: 2266 spin_lock_irq(&ndlp->lock); 2267 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 2268 spin_unlock_irq(&ndlp->lock); 2269 lpfc_issue_els_logo(vport, ndlp, 0); 2270 2271 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2272 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2273 return ndlp->nlp_state; 2274 } 2275 2276 out_err: 2277 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2278 * are complete. 2279 */ 2280 if (ndlp->fc4_prli_sent == 0) { 2281 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2282 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2283 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2284 else if (ndlp->nlp_type & 2285 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2286 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2287 } else 2288 lpfc_printf_vlog(vport, 2289 KERN_INFO, LOG_ELS, 2290 "3067 PRLI's still outstanding " 2291 "on x%06x - count %d, Pend Node Mode " 2292 "transition...\n", 2293 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2294 2295 return ndlp->nlp_state; 2296 } 2297 2298 /*! lpfc_device_rm_prli_issue 2299 * 2300 * \pre 2301 * \post 2302 * \param phba 2303 * \param ndlp 2304 * \param arg 2305 * \param evt 2306 * \return uint32_t 2307 * 2308 * \b Description: 2309 * This routine is envoked when we a request to remove a nport we are in the 2310 * process of PRLIing. We should software abort outstanding prli, unreg 2311 * login, send a logout. We will change node state to UNUSED_NODE, put it 2312 * on plogi list so it can be freed when LOGO completes. 2313 * 2314 */ 2315 2316 static uint32_t 2317 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2318 void *arg, uint32_t evt) 2319 { 2320 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2321 spin_lock_irq(&ndlp->lock); 2322 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2323 spin_unlock_irq(&ndlp->lock); 2324 return ndlp->nlp_state; 2325 } else { 2326 /* software abort outstanding PLOGI */ 2327 lpfc_els_abort(vport->phba, ndlp); 2328 2329 lpfc_drop_node(vport, ndlp); 2330 return NLP_STE_FREED_NODE; 2331 } 2332 } 2333 2334 2335 /*! lpfc_device_recov_prli_issue 2336 * 2337 * \pre 2338 * \post 2339 * \param phba 2340 * \param ndlp 2341 * \param arg 2342 * \param evt 2343 * \return uint32_t 2344 * 2345 * \b Description: 2346 * The routine is envoked when the state of a device is unknown, like 2347 * during a link down. We should remove the nodelist entry from the 2348 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2349 * outstanding PRLI command, then free the node entry. 2350 */ 2351 static uint32_t 2352 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2353 struct lpfc_nodelist *ndlp, 2354 void *arg, 2355 uint32_t evt) 2356 { 2357 struct lpfc_hba *phba = vport->phba; 2358 2359 /* Don't do anything that will mess up processing of the 2360 * previous RSCN. 2361 */ 2362 if (vport->fc_flag & FC_RSCN_DEFERRED) 2363 return ndlp->nlp_state; 2364 2365 /* software abort outstanding PRLI */ 2366 lpfc_els_abort(phba, ndlp); 2367 2368 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2369 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2370 spin_lock_irq(&ndlp->lock); 2371 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2372 spin_unlock_irq(&ndlp->lock); 2373 lpfc_disc_set_adisc(vport, ndlp); 2374 return ndlp->nlp_state; 2375 } 2376 2377 static uint32_t 2378 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2379 void *arg, uint32_t evt) 2380 { 2381 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2382 struct ls_rjt stat; 2383 2384 memset(&stat, 0, sizeof(struct ls_rjt)); 2385 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2386 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2387 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2388 return ndlp->nlp_state; 2389 } 2390 2391 static uint32_t 2392 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2393 void *arg, uint32_t evt) 2394 { 2395 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2396 struct ls_rjt stat; 2397 2398 memset(&stat, 0, sizeof(struct ls_rjt)); 2399 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2400 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2401 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2402 return ndlp->nlp_state; 2403 } 2404 2405 static uint32_t 2406 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2407 void *arg, uint32_t evt) 2408 { 2409 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2410 2411 spin_lock_irq(&ndlp->lock); 2412 ndlp->nlp_flag |= NLP_LOGO_ACC; 2413 spin_unlock_irq(&ndlp->lock); 2414 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2415 return ndlp->nlp_state; 2416 } 2417 2418 static uint32_t 2419 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2420 void *arg, uint32_t evt) 2421 { 2422 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2423 struct ls_rjt stat; 2424 2425 memset(&stat, 0, sizeof(struct ls_rjt)); 2426 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2427 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2428 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2429 return ndlp->nlp_state; 2430 } 2431 2432 static uint32_t 2433 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2434 void *arg, uint32_t evt) 2435 { 2436 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2437 struct ls_rjt stat; 2438 2439 memset(&stat, 0, sizeof(struct ls_rjt)); 2440 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2441 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2442 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2443 return ndlp->nlp_state; 2444 } 2445 2446 static uint32_t 2447 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2448 void *arg, uint32_t evt) 2449 { 2450 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2451 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2452 spin_lock_irq(&ndlp->lock); 2453 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2454 spin_unlock_irq(&ndlp->lock); 2455 lpfc_disc_set_adisc(vport, ndlp); 2456 return ndlp->nlp_state; 2457 } 2458 2459 static uint32_t 2460 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2461 void *arg, uint32_t evt) 2462 { 2463 /* 2464 * DevLoss has timed out and is calling for Device Remove. 2465 * In this case, abort the LOGO and cleanup the ndlp 2466 */ 2467 2468 lpfc_unreg_rpi(vport, ndlp); 2469 /* software abort outstanding PLOGI */ 2470 lpfc_els_abort(vport->phba, ndlp); 2471 lpfc_drop_node(vport, ndlp); 2472 return NLP_STE_FREED_NODE; 2473 } 2474 2475 static uint32_t 2476 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2477 struct lpfc_nodelist *ndlp, 2478 void *arg, uint32_t evt) 2479 { 2480 /* 2481 * Device Recovery events have no meaning for a node with a LOGO 2482 * outstanding. The LOGO has to complete first and handle the 2483 * node from that point. 2484 */ 2485 return ndlp->nlp_state; 2486 } 2487 2488 static uint32_t 2489 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2490 void *arg, uint32_t evt) 2491 { 2492 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2493 2494 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2495 return ndlp->nlp_state; 2496 } 2497 2498 static uint32_t 2499 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2500 void *arg, uint32_t evt) 2501 { 2502 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2503 2504 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2505 return ndlp->nlp_state; 2506 2507 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2508 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2509 return ndlp->nlp_state; 2510 } 2511 2512 static uint32_t 2513 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2514 void *arg, uint32_t evt) 2515 { 2516 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2517 2518 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2519 return ndlp->nlp_state; 2520 } 2521 2522 static uint32_t 2523 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2524 void *arg, uint32_t evt) 2525 { 2526 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2527 2528 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2529 return ndlp->nlp_state; 2530 } 2531 2532 static uint32_t 2533 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2534 void *arg, uint32_t evt) 2535 { 2536 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2537 2538 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2539 return ndlp->nlp_state; 2540 } 2541 2542 static uint32_t 2543 lpfc_device_rm_unmap_node(struct lpfc_vport *vport, 2544 struct lpfc_nodelist *ndlp, 2545 void *arg, 2546 uint32_t evt) 2547 { 2548 lpfc_drop_node(vport, ndlp); 2549 return NLP_STE_FREED_NODE; 2550 } 2551 2552 static uint32_t 2553 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2554 struct lpfc_nodelist *ndlp, 2555 void *arg, 2556 uint32_t evt) 2557 { 2558 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2559 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2560 spin_lock_irq(&ndlp->lock); 2561 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2562 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2563 spin_unlock_irq(&ndlp->lock); 2564 lpfc_disc_set_adisc(vport, ndlp); 2565 2566 return ndlp->nlp_state; 2567 } 2568 2569 static uint32_t 2570 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2571 void *arg, uint32_t evt) 2572 { 2573 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2574 2575 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2576 return ndlp->nlp_state; 2577 } 2578 2579 static uint32_t 2580 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2581 void *arg, uint32_t evt) 2582 { 2583 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2584 2585 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2586 return ndlp->nlp_state; 2587 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2588 return ndlp->nlp_state; 2589 } 2590 2591 static uint32_t 2592 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2593 void *arg, uint32_t evt) 2594 { 2595 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2596 2597 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2598 return ndlp->nlp_state; 2599 } 2600 2601 static uint32_t 2602 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2603 struct lpfc_nodelist *ndlp, 2604 void *arg, uint32_t evt) 2605 { 2606 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2607 2608 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2609 return ndlp->nlp_state; 2610 } 2611 2612 static uint32_t 2613 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2614 void *arg, uint32_t evt) 2615 { 2616 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2617 2618 /* flush the target */ 2619 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2620 2621 /* Treat like rcv logo */ 2622 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2623 return ndlp->nlp_state; 2624 } 2625 2626 static uint32_t 2627 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2628 struct lpfc_nodelist *ndlp, 2629 void *arg, 2630 uint32_t evt) 2631 { 2632 lpfc_disc_set_adisc(vport, ndlp); 2633 2634 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2635 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2636 spin_lock_irq(&ndlp->lock); 2637 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2638 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2639 spin_unlock_irq(&ndlp->lock); 2640 return ndlp->nlp_state; 2641 } 2642 2643 static uint32_t 2644 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2645 void *arg, uint32_t evt) 2646 { 2647 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2648 2649 /* Ignore PLOGI if we have an outstanding LOGO */ 2650 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2651 return ndlp->nlp_state; 2652 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2653 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2654 spin_lock_irq(&ndlp->lock); 2655 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2656 spin_unlock_irq(&ndlp->lock); 2657 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2658 /* send PLOGI immediately, move to PLOGI issue state */ 2659 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2660 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2661 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2662 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2663 } 2664 } 2665 return ndlp->nlp_state; 2666 } 2667 2668 static uint32_t 2669 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2670 void *arg, uint32_t evt) 2671 { 2672 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2673 struct ls_rjt stat; 2674 2675 memset(&stat, 0, sizeof (struct ls_rjt)); 2676 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2677 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2678 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2679 2680 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2681 /* 2682 * ADISC nodes will be handled in regular discovery path after 2683 * receiving response from NS. 2684 * 2685 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2686 */ 2687 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2688 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2689 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2690 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2691 } 2692 } 2693 return ndlp->nlp_state; 2694 } 2695 2696 static uint32_t 2697 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2698 void *arg, uint32_t evt) 2699 { 2700 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2701 2702 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2703 return ndlp->nlp_state; 2704 } 2705 2706 static uint32_t 2707 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2708 void *arg, uint32_t evt) 2709 { 2710 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2711 2712 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2713 /* 2714 * Do not start discovery if discovery is about to start 2715 * or discovery in progress for this node. Starting discovery 2716 * here will affect the counting of discovery threads. 2717 */ 2718 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2719 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2720 /* 2721 * ADISC nodes will be handled in regular discovery path after 2722 * receiving response from NS. 2723 * 2724 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2725 */ 2726 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2727 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2728 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2729 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2730 } 2731 } 2732 return ndlp->nlp_state; 2733 } 2734 2735 static uint32_t 2736 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2737 void *arg, uint32_t evt) 2738 { 2739 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2740 2741 spin_lock_irq(&ndlp->lock); 2742 ndlp->nlp_flag |= NLP_LOGO_ACC; 2743 spin_unlock_irq(&ndlp->lock); 2744 2745 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2746 2747 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2748 mod_timer(&ndlp->nlp_delayfunc, 2749 jiffies + msecs_to_jiffies(1000 * 1)); 2750 spin_lock_irq(&ndlp->lock); 2751 ndlp->nlp_flag |= NLP_DELAY_TMO; 2752 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2753 spin_unlock_irq(&ndlp->lock); 2754 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2755 } else { 2756 spin_lock_irq(&ndlp->lock); 2757 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2758 spin_unlock_irq(&ndlp->lock); 2759 } 2760 return ndlp->nlp_state; 2761 } 2762 2763 static uint32_t 2764 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2765 void *arg, uint32_t evt) 2766 { 2767 struct lpfc_hba *phba = vport->phba; 2768 struct lpfc_iocbq *cmdiocb, *rspiocb; 2769 u32 ulp_status; 2770 2771 cmdiocb = (struct lpfc_iocbq *) arg; 2772 rspiocb = cmdiocb->rsp_iocb; 2773 2774 ulp_status = get_job_ulpstatus(phba, rspiocb); 2775 2776 if (ulp_status) 2777 return NLP_STE_FREED_NODE; 2778 2779 return ndlp->nlp_state; 2780 } 2781 2782 static uint32_t 2783 lpfc_cmpl_prli_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 && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2796 lpfc_drop_node(vport, ndlp); 2797 return NLP_STE_FREED_NODE; 2798 } 2799 return ndlp->nlp_state; 2800 } 2801 2802 static uint32_t 2803 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2804 void *arg, uint32_t evt) 2805 { 2806 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2807 2808 /* For the fabric port just clear the fc flags. */ 2809 if (ndlp->nlp_DID == Fabric_DID) { 2810 spin_lock_irq(shost->host_lock); 2811 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2812 spin_unlock_irq(shost->host_lock); 2813 } 2814 lpfc_unreg_rpi(vport, ndlp); 2815 return ndlp->nlp_state; 2816 } 2817 2818 static uint32_t 2819 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2820 void *arg, uint32_t evt) 2821 { 2822 struct lpfc_hba *phba = vport->phba; 2823 struct lpfc_iocbq *cmdiocb, *rspiocb; 2824 u32 ulp_status; 2825 2826 cmdiocb = (struct lpfc_iocbq *) arg; 2827 rspiocb = cmdiocb->rsp_iocb; 2828 2829 ulp_status = get_job_ulpstatus(phba, rspiocb); 2830 2831 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2832 lpfc_drop_node(vport, ndlp); 2833 return NLP_STE_FREED_NODE; 2834 } 2835 return ndlp->nlp_state; 2836 } 2837 2838 static uint32_t 2839 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2840 struct lpfc_nodelist *ndlp, 2841 void *arg, uint32_t evt) 2842 { 2843 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2844 MAILBOX_t *mb = &pmb->u.mb; 2845 2846 if (!mb->mbxStatus) { 2847 /* SLI4 ports have preallocated logical rpis. */ 2848 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2849 ndlp->nlp_rpi = mb->un.varWords[0]; 2850 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2851 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 2852 lpfc_unreg_rpi(vport, ndlp); 2853 } 2854 } else { 2855 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2856 lpfc_drop_node(vport, ndlp); 2857 return NLP_STE_FREED_NODE; 2858 } 2859 } 2860 return ndlp->nlp_state; 2861 } 2862 2863 static uint32_t 2864 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2865 void *arg, uint32_t evt) 2866 { 2867 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2868 spin_lock_irq(&ndlp->lock); 2869 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2870 spin_unlock_irq(&ndlp->lock); 2871 return ndlp->nlp_state; 2872 } 2873 lpfc_drop_node(vport, ndlp); 2874 return NLP_STE_FREED_NODE; 2875 } 2876 2877 static uint32_t 2878 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2879 void *arg, uint32_t evt) 2880 { 2881 /* Don't do anything that will mess up processing of the 2882 * previous RSCN. 2883 */ 2884 if (vport->fc_flag & FC_RSCN_DEFERRED) 2885 return ndlp->nlp_state; 2886 2887 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2888 spin_lock_irq(&ndlp->lock); 2889 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2890 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2891 spin_unlock_irq(&ndlp->lock); 2892 return ndlp->nlp_state; 2893 } 2894 2895 2896 /* This next section defines the NPort Discovery State Machine */ 2897 2898 /* There are 4 different double linked lists nodelist entries can reside on. 2899 * The plogi list and adisc list are used when Link Up discovery or RSCN 2900 * processing is needed. Each list holds the nodes that we will send PLOGI 2901 * or ADISC on. These lists will keep track of what nodes will be effected 2902 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2903 * The unmapped_list will contain all nodes that we have successfully logged 2904 * into at the Fibre Channel level. The mapped_list will contain all nodes 2905 * that are mapped FCP targets. 2906 */ 2907 /* 2908 * The bind list is a list of undiscovered (potentially non-existent) nodes 2909 * that we have saved binding information on. This information is used when 2910 * nodes transition from the unmapped to the mapped list. 2911 */ 2912 /* For UNUSED_NODE state, the node has just been allocated . 2913 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2914 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2915 * and put on the unmapped list. For ADISC processing, the node is taken off 2916 * the ADISC list and placed on either the mapped or unmapped list (depending 2917 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2918 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2919 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2920 * node, the node is taken off the unmapped list. The binding list is checked 2921 * for a valid binding, or a binding is automatically assigned. If binding 2922 * assignment is unsuccessful, the node is left on the unmapped list. If 2923 * binding assignment is successful, the associated binding list entry (if 2924 * any) is removed, and the node is placed on the mapped list. 2925 */ 2926 /* 2927 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2928 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2929 * expire, all effected nodes will receive a DEVICE_RM event. 2930 */ 2931 /* 2932 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2933 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2934 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2935 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2936 * we will first process the ADISC list. 32 entries are processed initially and 2937 * ADISC is initited for each one. Completions / Events for each node are 2938 * funnelled thru the state machine. As each node finishes ADISC processing, it 2939 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2940 * waiting, and the ADISC list count is identically 0, then we are done. For 2941 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2942 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2943 * list. 32 entries are processed initially and PLOGI is initited for each one. 2944 * Completions / Events for each node are funnelled thru the state machine. As 2945 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2946 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2947 * indentically 0, then we are done. We have now completed discovery / RSCN 2948 * handling. Upon completion, ALL nodes should be on either the mapped or 2949 * unmapped lists. 2950 */ 2951 2952 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2953 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2954 /* Action routine Event Current State */ 2955 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2956 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2957 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2958 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2959 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2960 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2961 lpfc_disc_illegal, /* CMPL_PLOGI */ 2962 lpfc_disc_illegal, /* CMPL_PRLI */ 2963 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2964 lpfc_disc_illegal, /* CMPL_ADISC */ 2965 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2966 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2967 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2968 2969 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2970 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2971 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2972 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2973 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2974 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2975 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2976 lpfc_disc_illegal, /* CMPL_PRLI */ 2977 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2978 lpfc_disc_illegal, /* CMPL_ADISC */ 2979 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2980 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2981 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2982 2983 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2984 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 2985 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 2986 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 2987 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 2988 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 2989 lpfc_disc_illegal, /* CMPL_PLOGI */ 2990 lpfc_disc_illegal, /* CMPL_PRLI */ 2991 lpfc_disc_illegal, /* CMPL_LOGO */ 2992 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 2993 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2994 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 2995 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 2996 2997 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 2998 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 2999 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 3000 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 3001 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 3002 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 3003 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3004 lpfc_disc_illegal, /* CMPL_PRLI */ 3005 lpfc_disc_illegal, /* CMPL_LOGO */ 3006 lpfc_disc_illegal, /* CMPL_ADISC */ 3007 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 3008 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 3009 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 3010 3011 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 3012 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 3013 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 3014 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 3015 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 3016 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 3017 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3018 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 3019 lpfc_disc_illegal, /* CMPL_LOGO */ 3020 lpfc_disc_illegal, /* CMPL_ADISC */ 3021 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3022 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 3023 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 3024 3025 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 3026 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 3027 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 3028 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 3029 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 3030 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 3031 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3032 lpfc_disc_illegal, /* CMPL_PRLI */ 3033 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 3034 lpfc_disc_illegal, /* CMPL_ADISC */ 3035 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3036 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 3037 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 3038 3039 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 3040 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 3041 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 3042 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 3043 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 3044 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 3045 lpfc_disc_illegal, /* CMPL_PLOGI */ 3046 lpfc_disc_illegal, /* CMPL_PRLI */ 3047 lpfc_disc_illegal, /* CMPL_LOGO */ 3048 lpfc_disc_illegal, /* CMPL_ADISC */ 3049 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3050 lpfc_device_rm_unmap_node, /* DEVICE_RM */ 3051 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 3052 3053 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 3054 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 3055 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 3056 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 3057 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 3058 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 3059 lpfc_disc_illegal, /* CMPL_PLOGI */ 3060 lpfc_disc_illegal, /* CMPL_PRLI */ 3061 lpfc_disc_illegal, /* CMPL_LOGO */ 3062 lpfc_disc_illegal, /* CMPL_ADISC */ 3063 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3064 lpfc_disc_illegal, /* DEVICE_RM */ 3065 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 3066 3067 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 3068 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 3069 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 3070 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 3071 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 3072 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 3073 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 3074 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 3075 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 3076 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 3077 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 3078 lpfc_device_rm_npr_node, /* DEVICE_RM */ 3079 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 3080 }; 3081 3082 int 3083 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3084 void *arg, uint32_t evt) 3085 { 3086 uint32_t cur_state, rc; 3087 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 3088 uint32_t); 3089 uint32_t got_ndlp = 0; 3090 uint32_t data1; 3091 3092 if (lpfc_nlp_get(ndlp)) 3093 got_ndlp = 1; 3094 3095 cur_state = ndlp->nlp_state; 3096 3097 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3098 ((uint32_t)ndlp->nlp_type)); 3099 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 3100 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3101 "0211 DSM in event x%x on NPort x%x in " 3102 "state %d rpi x%x Data: x%x x%x\n", 3103 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, 3104 ndlp->nlp_flag, data1); 3105 3106 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3107 "DSM in: evt:%d ste:%d did:x%x", 3108 evt, cur_state, ndlp->nlp_DID); 3109 3110 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 3111 rc = (func) (vport, ndlp, arg, evt); 3112 3113 /* DSM out state <rc> on NPort <nlp_DID> */ 3114 if (got_ndlp) { 3115 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3116 ((uint32_t)ndlp->nlp_type)); 3117 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3118 "0212 DSM out state %d on NPort x%x " 3119 "rpi x%x Data: x%x x%x\n", 3120 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag, 3121 data1); 3122 3123 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3124 "DSM out: ste:%d did:x%x flg:x%x", 3125 rc, ndlp->nlp_DID, ndlp->nlp_flag); 3126 /* Decrement the ndlp reference count held for this function */ 3127 lpfc_nlp_put(ndlp); 3128 } else { 3129 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3130 "0213 DSM out state %d on NPort free\n", rc); 3131 3132 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3133 "DSM out: ste:%d did:x%x flg:x%x", 3134 rc, 0, 0); 3135 } 3136 3137 return rc; 3138 } 3139