1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/pci.h> 26 #include <linux/slab.h> 27 #include <linux/interrupt.h> 28 29 #include <scsi/scsi.h> 30 #include <scsi/scsi_device.h> 31 #include <scsi/scsi_host.h> 32 #include <scsi/scsi_transport_fc.h> 33 #include <scsi/fc/fc_fs.h> 34 35 #include "lpfc_hw4.h" 36 #include "lpfc_hw.h" 37 #include "lpfc_sli.h" 38 #include "lpfc_sli4.h" 39 #include "lpfc_nl.h" 40 #include "lpfc_disc.h" 41 #include "lpfc.h" 42 #include "lpfc_scsi.h" 43 #include "lpfc_nvme.h" 44 #include "lpfc_logmsg.h" 45 #include "lpfc_crtn.h" 46 #include "lpfc_vport.h" 47 #include "lpfc_debugfs.h" 48 49 50 /* Called to verify a rcv'ed ADISC was intended for us. */ 51 static int 52 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 53 struct lpfc_name *nn, struct lpfc_name *pn) 54 { 55 /* First, we MUST have a RPI registered */ 56 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) 57 return 0; 58 59 /* Compare the ADISC rsp WWNN / WWPN matches our internal node 60 * table entry for that node. 61 */ 62 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) 63 return 0; 64 65 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) 66 return 0; 67 68 /* we match, return success */ 69 return 1; 70 } 71 72 int 73 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 74 struct serv_parm *sp, uint32_t class, int flogi) 75 { 76 volatile struct serv_parm *hsp = &vport->fc_sparam; 77 uint16_t hsp_value, ssp_value = 0; 78 79 /* 80 * The receive data field size and buffer-to-buffer receive data field 81 * size entries are 16 bits but are represented as two 8-bit fields in 82 * the driver data structure to account for rsvd bits and other control 83 * bits. Reconstruct and compare the fields as a 16-bit values before 84 * correcting the byte values. 85 */ 86 if (sp->cls1.classValid) { 87 if (!flogi) { 88 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) | 89 hsp->cls1.rcvDataSizeLsb); 90 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) | 91 sp->cls1.rcvDataSizeLsb); 92 if (!ssp_value) 93 goto bad_service_param; 94 if (ssp_value > hsp_value) { 95 sp->cls1.rcvDataSizeLsb = 96 hsp->cls1.rcvDataSizeLsb; 97 sp->cls1.rcvDataSizeMsb = 98 hsp->cls1.rcvDataSizeMsb; 99 } 100 } 101 } else if (class == CLASS1) 102 goto bad_service_param; 103 if (sp->cls2.classValid) { 104 if (!flogi) { 105 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) | 106 hsp->cls2.rcvDataSizeLsb); 107 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) | 108 sp->cls2.rcvDataSizeLsb); 109 if (!ssp_value) 110 goto bad_service_param; 111 if (ssp_value > hsp_value) { 112 sp->cls2.rcvDataSizeLsb = 113 hsp->cls2.rcvDataSizeLsb; 114 sp->cls2.rcvDataSizeMsb = 115 hsp->cls2.rcvDataSizeMsb; 116 } 117 } 118 } else if (class == CLASS2) 119 goto bad_service_param; 120 if (sp->cls3.classValid) { 121 if (!flogi) { 122 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) | 123 hsp->cls3.rcvDataSizeLsb); 124 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) | 125 sp->cls3.rcvDataSizeLsb); 126 if (!ssp_value) 127 goto bad_service_param; 128 if (ssp_value > hsp_value) { 129 sp->cls3.rcvDataSizeLsb = 130 hsp->cls3.rcvDataSizeLsb; 131 sp->cls3.rcvDataSizeMsb = 132 hsp->cls3.rcvDataSizeMsb; 133 } 134 } 135 } else if (class == CLASS3) 136 goto bad_service_param; 137 138 /* 139 * Preserve the upper four bits of the MSB from the PLOGI response. 140 * These bits contain the Buffer-to-Buffer State Change Number 141 * from the target and need to be passed to the FW. 142 */ 143 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; 144 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; 145 if (ssp_value > hsp_value) { 146 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; 147 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | 148 (hsp->cmn.bbRcvSizeMsb & 0x0F); 149 } 150 151 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); 152 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); 153 return 1; 154 bad_service_param: 155 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 156 "0207 Device %x " 157 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 158 "invalid service parameters. Ignoring device.\n", 159 ndlp->nlp_DID, 160 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 161 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 162 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 163 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 164 return 0; 165 } 166 167 static void * 168 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 169 struct lpfc_iocbq *rspiocb) 170 { 171 struct lpfc_dmabuf *pcmd, *prsp; 172 uint32_t *lp; 173 void *ptr = NULL; 174 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 175 176 pcmd = cmdiocb->cmd_dmabuf; 177 178 /* For lpfc_els_abort, cmd_dmabuf could be zero'ed to delay 179 * freeing associated memory till after ABTS completes. 180 */ 181 if (pcmd) { 182 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, 183 list); 184 if (prsp) { 185 lp = (uint32_t *) prsp->virt; 186 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); 187 } 188 } else { 189 /* Force ulp_status error since we are returning NULL ptr */ 190 if (!(ulp_status)) { 191 if (phba->sli_rev == LPFC_SLI_REV4) { 192 bf_set(lpfc_wcqe_c_status, &rspiocb->wcqe_cmpl, 193 IOSTAT_LOCAL_REJECT); 194 rspiocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED; 195 } else { 196 rspiocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; 197 rspiocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED; 198 } 199 } 200 ptr = NULL; 201 } 202 return ptr; 203 } 204 205 206 207 /* 208 * Free resources / clean up outstanding I/Os 209 * associated with a LPFC_NODELIST entry. This 210 * routine effectively results in a "software abort". 211 */ 212 void 213 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 214 { 215 LIST_HEAD(abort_list); 216 struct lpfc_sli_ring *pring; 217 struct lpfc_iocbq *iocb, *next_iocb; 218 219 pring = lpfc_phba_elsring(phba); 220 221 /* In case of error recovery path, we might have a NULL pring here */ 222 if (unlikely(!pring)) 223 return; 224 225 /* Abort outstanding I/O on NPort <nlp_DID> */ 226 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, 227 "2819 Abort outstanding I/O on NPort x%x " 228 "Data: x%x x%x x%x\n", 229 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 230 ndlp->nlp_rpi); 231 /* Clean up all fabric IOs first.*/ 232 lpfc_fabric_abort_nport(ndlp); 233 234 /* 235 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list 236 * of all ELS IOs that need an ABTS. The IOs need to stay on the 237 * txcmplq so that the abort operation completes them successfully. 238 */ 239 spin_lock_irq(&phba->hbalock); 240 if (phba->sli_rev == LPFC_SLI_REV4) 241 spin_lock(&pring->ring_lock); 242 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 243 /* Add to abort_list on on NDLP match. */ 244 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 245 list_add_tail(&iocb->dlist, &abort_list); 246 } 247 if (phba->sli_rev == LPFC_SLI_REV4) 248 spin_unlock(&pring->ring_lock); 249 spin_unlock_irq(&phba->hbalock); 250 251 /* Abort the targeted IOs and remove them from the abort list. */ 252 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) { 253 spin_lock_irq(&phba->hbalock); 254 list_del_init(&iocb->dlist); 255 lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL); 256 spin_unlock_irq(&phba->hbalock); 257 } 258 /* Make sure HBA is alive */ 259 lpfc_issue_hb_tmo(phba); 260 261 INIT_LIST_HEAD(&abort_list); 262 263 /* Now process the txq */ 264 spin_lock_irq(&phba->hbalock); 265 if (phba->sli_rev == LPFC_SLI_REV4) 266 spin_lock(&pring->ring_lock); 267 268 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 269 /* Check to see if iocb matches the nport we are looking for */ 270 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 271 list_del_init(&iocb->list); 272 list_add_tail(&iocb->list, &abort_list); 273 } 274 } 275 276 if (phba->sli_rev == LPFC_SLI_REV4) 277 spin_unlock(&pring->ring_lock); 278 spin_unlock_irq(&phba->hbalock); 279 280 /* Cancel all the IOCBs from the completions list */ 281 lpfc_sli_cancel_iocbs(phba, &abort_list, 282 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 283 284 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 285 } 286 287 /* lpfc_defer_plogi_acc - Issue PLOGI ACC after reg_login completes 288 * @phba: pointer to lpfc hba data structure. 289 * @login_mbox: pointer to REG_RPI mailbox object 290 * 291 * The ACC for a rcv'ed PLOGI is deferred until AFTER the REG_RPI completes 292 */ 293 static void 294 lpfc_defer_plogi_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *login_mbox) 295 { 296 struct lpfc_iocbq *save_iocb; 297 struct lpfc_nodelist *ndlp; 298 MAILBOX_t *mb = &login_mbox->u.mb; 299 300 int rc; 301 302 ndlp = login_mbox->ctx_ndlp; 303 save_iocb = login_mbox->context3; 304 305 if (mb->mbxStatus == MBX_SUCCESS) { 306 /* Now that REG_RPI completed successfully, 307 * we can now proceed with sending the PLOGI ACC. 308 */ 309 rc = lpfc_els_rsp_acc(login_mbox->vport, ELS_CMD_PLOGI, 310 save_iocb, ndlp, NULL); 311 if (rc) { 312 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 313 "4576 PLOGI ACC fails pt2pt discovery: " 314 "DID %x Data: %x\n", ndlp->nlp_DID, rc); 315 } 316 } 317 318 /* Now process the REG_RPI cmpl */ 319 lpfc_mbx_cmpl_reg_login(phba, login_mbox); 320 ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN; 321 kfree(save_iocb); 322 } 323 324 static int 325 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 326 struct lpfc_iocbq *cmdiocb) 327 { 328 struct lpfc_hba *phba = vport->phba; 329 struct lpfc_dmabuf *pcmd; 330 uint64_t nlp_portwwn = 0; 331 uint32_t *lp; 332 union lpfc_wqe128 *wqe; 333 IOCB_t *icmd; 334 struct serv_parm *sp; 335 uint32_t ed_tov; 336 LPFC_MBOXQ_t *link_mbox; 337 LPFC_MBOXQ_t *login_mbox; 338 struct lpfc_iocbq *save_iocb; 339 struct ls_rjt stat; 340 uint32_t vid, flag; 341 int rc; 342 u32 remote_did; 343 344 memset(&stat, 0, sizeof (struct ls_rjt)); 345 pcmd = cmdiocb->cmd_dmabuf; 346 lp = (uint32_t *) pcmd->virt; 347 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 348 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 349 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 350 "0140 PLOGI Reject: invalid pname\n"); 351 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 352 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 353 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 354 NULL); 355 return 0; 356 } 357 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 358 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 359 "0141 PLOGI Reject: invalid nname\n"); 360 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 361 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 362 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 363 NULL); 364 return 0; 365 } 366 367 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 368 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 369 /* Reject this request because invalid parameters */ 370 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 371 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 372 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 373 NULL); 374 return 0; 375 } 376 377 if (phba->sli_rev == LPFC_SLI_REV4) 378 wqe = &cmdiocb->wqe; 379 else 380 icmd = &cmdiocb->iocb; 381 382 /* PLOGI chkparm OK */ 383 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 384 "0114 PLOGI chkparm OK Data: x%x x%x x%x " 385 "x%x x%x x%x\n", 386 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 387 ndlp->nlp_rpi, vport->port_state, 388 vport->fc_flag); 389 390 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 391 ndlp->nlp_fcp_info |= CLASS2; 392 else 393 ndlp->nlp_fcp_info |= CLASS3; 394 395 ndlp->nlp_class_sup = 0; 396 if (sp->cls1.classValid) 397 ndlp->nlp_class_sup |= FC_COS_CLASS1; 398 if (sp->cls2.classValid) 399 ndlp->nlp_class_sup |= FC_COS_CLASS2; 400 if (sp->cls3.classValid) 401 ndlp->nlp_class_sup |= FC_COS_CLASS3; 402 if (sp->cls4.classValid) 403 ndlp->nlp_class_sup |= FC_COS_CLASS4; 404 ndlp->nlp_maxframe = 405 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 406 /* if already logged in, do implicit logout */ 407 switch (ndlp->nlp_state) { 408 case NLP_STE_NPR_NODE: 409 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 410 break; 411 fallthrough; 412 case NLP_STE_REG_LOGIN_ISSUE: 413 case NLP_STE_PRLI_ISSUE: 414 case NLP_STE_UNMAPPED_NODE: 415 case NLP_STE_MAPPED_NODE: 416 /* For initiators, lpfc_plogi_confirm_nport skips fabric did. 417 * For target mode, execute implicit logo. 418 * Fabric nodes go into NPR. 419 */ 420 if (!(ndlp->nlp_type & NLP_FABRIC) && 421 !(phba->nvmet_support)) { 422 /* Clear ndlp info, since follow up PRLI may have 423 * updated ndlp information 424 */ 425 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 426 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 427 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 428 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 429 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 430 431 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 432 ndlp, NULL); 433 return 1; 434 } 435 if (nlp_portwwn != 0 && 436 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 437 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 438 "0143 PLOGI recv'd from DID: x%x " 439 "WWPN changed: old %llx new %llx\n", 440 ndlp->nlp_DID, 441 (unsigned long long)nlp_portwwn, 442 (unsigned long long) 443 wwn_to_u64(sp->portName.u.wwn)); 444 445 /* Notify transport of connectivity loss to trigger cleanup. */ 446 if (phba->nvmet_support && 447 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 448 lpfc_nvmet_invalidate_host(phba, ndlp); 449 450 ndlp->nlp_prev_state = ndlp->nlp_state; 451 /* rport needs to be unregistered first */ 452 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 453 break; 454 } 455 456 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 457 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 458 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 459 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 460 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 461 462 login_mbox = NULL; 463 link_mbox = NULL; 464 save_iocb = NULL; 465 466 /* Check for Nport to NPort pt2pt protocol */ 467 if ((vport->fc_flag & FC_PT2PT) && 468 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 469 /* rcv'ed PLOGI decides what our NPortId will be */ 470 if (phba->sli_rev == LPFC_SLI_REV4) { 471 vport->fc_myDID = bf_get(els_rsp64_sid, 472 &cmdiocb->wqe.xmit_els_rsp); 473 } else { 474 vport->fc_myDID = icmd->un.rcvels.parmRo; 475 } 476 477 /* If there is an outstanding FLOGI, abort it now. 478 * The remote NPort is not going to ACC our FLOGI 479 * if its already issuing a PLOGI for pt2pt mode. 480 * This indicates our FLOGI was dropped; however, we 481 * must have ACCed the remote NPorts FLOGI to us 482 * to make it here. 483 */ 484 if (phba->hba_flag & HBA_FLOGI_OUTSTANDING) 485 lpfc_els_abort_flogi(phba); 486 487 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 488 if (sp->cmn.edtovResolution) { 489 /* E_D_TOV ticks are in nanoseconds */ 490 ed_tov = (phba->fc_edtov + 999999) / 1000000; 491 } 492 493 /* 494 * For pt-to-pt, use the larger EDTOV 495 * RATOV = 2 * EDTOV 496 */ 497 if (ed_tov > phba->fc_edtov) 498 phba->fc_edtov = ed_tov; 499 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 500 501 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 502 503 /* Issue CONFIG_LINK for SLI3 or REG_VFI for SLI4, 504 * to account for updated TOV's / parameters 505 */ 506 if (phba->sli_rev == LPFC_SLI_REV4) 507 lpfc_issue_reg_vfi(vport); 508 else { 509 link_mbox = mempool_alloc(phba->mbox_mem_pool, 510 GFP_KERNEL); 511 if (!link_mbox) 512 goto out; 513 lpfc_config_link(phba, link_mbox); 514 link_mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 515 link_mbox->vport = vport; 516 517 /* The default completion handling for CONFIG_LINK 518 * does not require the ndlp so no reference is needed. 519 */ 520 link_mbox->ctx_ndlp = ndlp; 521 522 rc = lpfc_sli_issue_mbox(phba, link_mbox, MBX_NOWAIT); 523 if (rc == MBX_NOT_FINISHED) { 524 mempool_free(link_mbox, phba->mbox_mem_pool); 525 goto out; 526 } 527 } 528 529 lpfc_can_disctmo(vport); 530 } 531 532 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 533 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 534 sp->cmn.valid_vendor_ver_level) { 535 vid = be32_to_cpu(sp->un.vv.vid); 536 flag = be32_to_cpu(sp->un.vv.flags); 537 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) 538 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 539 } 540 541 login_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 542 if (!login_mbox) 543 goto out; 544 545 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL); 546 if (!save_iocb) 547 goto out; 548 549 /* Save info from cmd IOCB to be used in rsp after all mbox completes */ 550 memcpy((uint8_t *)save_iocb, (uint8_t *)cmdiocb, 551 sizeof(struct lpfc_iocbq)); 552 553 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 554 if (phba->sli_rev == LPFC_SLI_REV4) 555 lpfc_unreg_rpi(vport, ndlp); 556 557 /* Issue REG_LOGIN first, before ACCing the PLOGI, thus we will 558 * always be deferring the ACC. 559 */ 560 if (phba->sli_rev == LPFC_SLI_REV4) 561 remote_did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest); 562 else 563 remote_did = icmd->un.rcvels.remoteID; 564 rc = lpfc_reg_rpi(phba, vport->vpi, remote_did, 565 (uint8_t *)sp, login_mbox, ndlp->nlp_rpi); 566 if (rc) 567 goto out; 568 569 login_mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 570 login_mbox->vport = vport; 571 572 /* 573 * If there is an outstanding PLOGI issued, abort it before 574 * sending ACC rsp for received PLOGI. If pending plogi 575 * is not canceled here, the plogi will be rejected by 576 * remote port and will be retried. On a configuration with 577 * single discovery thread, this will cause a huge delay in 578 * discovery. Also this will cause multiple state machines 579 * running in parallel for this node. 580 * This only applies to a fabric environment. 581 */ 582 if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) && 583 (vport->fc_flag & FC_FABRIC)) { 584 /* software abort outstanding PLOGI */ 585 lpfc_els_abort(phba, ndlp); 586 } 587 588 if ((vport->port_type == LPFC_NPIV_PORT && 589 vport->cfg_restrict_login)) { 590 591 /* no deferred ACC */ 592 kfree(save_iocb); 593 594 /* This is an NPIV SLI4 instance that does not need to register 595 * a default RPI. 596 */ 597 if (phba->sli_rev == LPFC_SLI_REV4) { 598 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 599 MBOX_THD_UNLOCKED); 600 login_mbox = NULL; 601 } else { 602 /* In order to preserve RPIs, we want to cleanup 603 * the default RPI the firmware created to rcv 604 * this ELS request. The only way to do this is 605 * to register, then unregister the RPI. 606 */ 607 spin_lock_irq(&ndlp->lock); 608 ndlp->nlp_flag |= (NLP_RM_DFLT_RPI | NLP_ACC_REGLOGIN | 609 NLP_RCV_PLOGI); 610 spin_unlock_irq(&ndlp->lock); 611 } 612 613 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 614 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 615 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 616 ndlp, login_mbox); 617 if (rc && login_mbox) 618 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 619 MBOX_THD_UNLOCKED); 620 return 1; 621 } 622 623 /* So the order here should be: 624 * SLI3 pt2pt 625 * Issue CONFIG_LINK mbox 626 * CONFIG_LINK cmpl 627 * SLI4 pt2pt 628 * Issue REG_VFI mbox 629 * REG_VFI cmpl 630 * SLI4 631 * Issue UNREG RPI mbx 632 * UNREG RPI cmpl 633 * Issue REG_RPI mbox 634 * REG RPI cmpl 635 * Issue PLOGI ACC 636 * PLOGI ACC cmpl 637 */ 638 login_mbox->mbox_cmpl = lpfc_defer_plogi_acc; 639 login_mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 640 if (!login_mbox->ctx_ndlp) 641 goto out; 642 643 login_mbox->context3 = save_iocb; /* For PLOGI ACC */ 644 645 spin_lock_irq(&ndlp->lock); 646 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 647 spin_unlock_irq(&ndlp->lock); 648 649 /* Start the ball rolling by issuing REG_LOGIN here */ 650 rc = lpfc_sli_issue_mbox(phba, login_mbox, MBX_NOWAIT); 651 if (rc == MBX_NOT_FINISHED) { 652 lpfc_nlp_put(ndlp); 653 goto out; 654 } 655 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); 656 657 return 1; 658 out: 659 kfree(save_iocb); 660 if (login_mbox) 661 mempool_free(login_mbox, phba->mbox_mem_pool); 662 663 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 664 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 665 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 666 return 0; 667 } 668 669 /** 670 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 671 * @phba: pointer to lpfc hba data structure. 672 * @mboxq: pointer to mailbox object 673 * 674 * This routine is invoked to issue a completion to a rcv'ed 675 * ADISC or PDISC after the paused RPI has been resumed. 676 **/ 677 static void 678 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 679 { 680 struct lpfc_vport *vport; 681 struct lpfc_iocbq *elsiocb; 682 struct lpfc_nodelist *ndlp; 683 uint32_t cmd; 684 685 elsiocb = (struct lpfc_iocbq *)mboxq->ctx_buf; 686 ndlp = (struct lpfc_nodelist *)mboxq->ctx_ndlp; 687 vport = mboxq->vport; 688 cmd = elsiocb->drvrTimeout; 689 690 if (cmd == ELS_CMD_ADISC) { 691 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 692 } else { 693 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 694 ndlp, NULL); 695 } 696 697 /* This nlp_put pairs with lpfc_sli4_resume_rpi */ 698 lpfc_nlp_put(ndlp); 699 700 kfree(elsiocb); 701 mempool_free(mboxq, phba->mbox_mem_pool); 702 } 703 704 static int 705 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 706 struct lpfc_iocbq *cmdiocb) 707 { 708 struct lpfc_hba *phba = vport->phba; 709 struct lpfc_iocbq *elsiocb; 710 struct lpfc_dmabuf *pcmd; 711 struct serv_parm *sp; 712 struct lpfc_name *pnn, *ppn; 713 struct ls_rjt stat; 714 ADISC *ap; 715 uint32_t *lp; 716 uint32_t cmd; 717 718 pcmd = cmdiocb->cmd_dmabuf; 719 lp = (uint32_t *) pcmd->virt; 720 721 cmd = *lp++; 722 if (cmd == ELS_CMD_ADISC) { 723 ap = (ADISC *) lp; 724 pnn = (struct lpfc_name *) & ap->nodeName; 725 ppn = (struct lpfc_name *) & ap->portName; 726 } else { 727 sp = (struct serv_parm *) lp; 728 pnn = (struct lpfc_name *) & sp->nodeName; 729 ppn = (struct lpfc_name *) & sp->portName; 730 } 731 732 if (get_job_ulpstatus(phba, cmdiocb) == 0 && 733 lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 734 735 /* 736 * As soon as we send ACC, the remote NPort can 737 * start sending us data. Thus, for SLI4 we must 738 * resume the RPI before the ACC goes out. 739 */ 740 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 741 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 742 GFP_KERNEL); 743 if (elsiocb) { 744 /* Save info from cmd IOCB used in rsp */ 745 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 746 sizeof(struct lpfc_iocbq)); 747 748 /* Save the ELS cmd */ 749 elsiocb->drvrTimeout = cmd; 750 751 lpfc_sli4_resume_rpi(ndlp, 752 lpfc_mbx_cmpl_resume_rpi, elsiocb); 753 goto out; 754 } 755 } 756 757 if (cmd == ELS_CMD_ADISC) { 758 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 759 } else { 760 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 761 ndlp, NULL); 762 } 763 out: 764 /* If we are authenticated, move to the proper state. 765 * It is possible an ADISC arrived and the remote nport 766 * is already in MAPPED or UNMAPPED state. Catch this 767 * condition and don't set the nlp_state again because 768 * it causes an unnecessary transport unregister/register. 769 * 770 * Nodes marked for ADISC will move MAPPED or UNMAPPED state 771 * after issuing ADISC 772 */ 773 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 774 if ((ndlp->nlp_state != NLP_STE_MAPPED_NODE) && 775 !(ndlp->nlp_flag & NLP_NPR_ADISC)) 776 lpfc_nlp_set_state(vport, ndlp, 777 NLP_STE_MAPPED_NODE); 778 } 779 780 return 1; 781 } 782 /* Reject this request because invalid parameters */ 783 stat.un.b.lsRjtRsvd0 = 0; 784 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 785 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 786 stat.un.b.vendorUnique = 0; 787 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 788 789 /* 1 sec timeout */ 790 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 791 792 spin_lock_irq(&ndlp->lock); 793 ndlp->nlp_flag |= NLP_DELAY_TMO; 794 spin_unlock_irq(&ndlp->lock); 795 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 796 ndlp->nlp_prev_state = ndlp->nlp_state; 797 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 798 return 0; 799 } 800 801 static int 802 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 803 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 804 { 805 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 806 struct lpfc_hba *phba = vport->phba; 807 struct lpfc_vport **vports; 808 int i, active_vlink_present = 0 ; 809 810 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 811 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 812 * PLOGIs during LOGO storms from a device. 813 */ 814 spin_lock_irq(&ndlp->lock); 815 ndlp->nlp_flag |= NLP_LOGO_ACC; 816 spin_unlock_irq(&ndlp->lock); 817 if (els_cmd == ELS_CMD_PRLO) 818 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 819 else 820 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 821 822 /* This clause allows the initiator to ACC the LOGO back to the 823 * Fabric Domain Controller. It does deliberately skip all other 824 * steps because some fabrics send RDP requests after logging out 825 * from the initiator. 826 */ 827 if (ndlp->nlp_type & NLP_FABRIC && 828 ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK)) 829 return 0; 830 831 /* Notify transport of connectivity loss to trigger cleanup. */ 832 if (phba->nvmet_support && 833 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 834 lpfc_nvmet_invalidate_host(phba, ndlp); 835 836 if (ndlp->nlp_DID == Fabric_DID) { 837 if (vport->port_state <= LPFC_FDISC || 838 vport->fc_flag & FC_PT2PT) 839 goto out; 840 lpfc_linkdown_port(vport); 841 spin_lock_irq(shost->host_lock); 842 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 843 spin_unlock_irq(shost->host_lock); 844 vports = lpfc_create_vport_work_array(phba); 845 if (vports) { 846 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 847 i++) { 848 if ((!(vports[i]->fc_flag & 849 FC_VPORT_LOGO_RCVD)) && 850 (vports[i]->port_state > LPFC_FDISC)) { 851 active_vlink_present = 1; 852 break; 853 } 854 } 855 lpfc_destroy_vport_work_array(phba, vports); 856 } 857 858 /* 859 * Don't re-instantiate if vport is marked for deletion. 860 * If we are here first then vport_delete is going to wait 861 * for discovery to complete. 862 */ 863 if (!(vport->load_flag & FC_UNLOADING) && 864 active_vlink_present) { 865 /* 866 * If there are other active VLinks present, 867 * re-instantiate the Vlink using FDISC. 868 */ 869 mod_timer(&ndlp->nlp_delayfunc, 870 jiffies + msecs_to_jiffies(1000)); 871 spin_lock_irq(&ndlp->lock); 872 ndlp->nlp_flag |= NLP_DELAY_TMO; 873 spin_unlock_irq(&ndlp->lock); 874 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 875 vport->port_state = LPFC_FDISC; 876 } else { 877 spin_lock_irq(shost->host_lock); 878 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 879 spin_unlock_irq(shost->host_lock); 880 lpfc_retry_pport_discovery(phba); 881 } 882 } else { 883 lpfc_printf_vlog(vport, KERN_INFO, 884 LOG_NODE | LOG_ELS | LOG_DISCOVERY, 885 "3203 LOGO recover nport x%06x state x%x " 886 "ntype x%x fc_flag x%x\n", 887 ndlp->nlp_DID, ndlp->nlp_state, 888 ndlp->nlp_type, vport->fc_flag); 889 890 /* Special cases for rports that recover post LOGO. */ 891 if ((!(ndlp->nlp_type == NLP_FABRIC) && 892 (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) || 893 vport->fc_flag & FC_PT2PT)) || 894 (ndlp->nlp_state >= NLP_STE_ADISC_ISSUE || 895 ndlp->nlp_state <= NLP_STE_PRLI_ISSUE)) { 896 mod_timer(&ndlp->nlp_delayfunc, 897 jiffies + msecs_to_jiffies(1000 * 1)); 898 spin_lock_irq(&ndlp->lock); 899 ndlp->nlp_flag |= NLP_DELAY_TMO; 900 spin_unlock_irq(&ndlp->lock); 901 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 902 lpfc_printf_vlog(vport, KERN_INFO, 903 LOG_NODE | LOG_ELS | LOG_DISCOVERY, 904 "3204 Start nlpdelay on DID x%06x " 905 "nflag x%x lastels x%x ref cnt %u", 906 ndlp->nlp_DID, ndlp->nlp_flag, 907 ndlp->nlp_last_elscmd, 908 kref_read(&ndlp->kref)); 909 } 910 } 911 out: 912 /* Unregister from backend, could have been skipped due to ADISC */ 913 lpfc_nlp_unreg_node(vport, ndlp); 914 915 ndlp->nlp_prev_state = ndlp->nlp_state; 916 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 917 918 spin_lock_irq(&ndlp->lock); 919 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 920 spin_unlock_irq(&ndlp->lock); 921 /* The driver has to wait until the ACC completes before it continues 922 * processing the LOGO. The action will resume in 923 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 924 * unreg_login, the driver waits so the ACC does not get aborted. 925 */ 926 return 0; 927 } 928 929 static uint32_t 930 lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 931 struct lpfc_nodelist *ndlp, 932 struct lpfc_iocbq *cmdiocb) 933 { 934 struct ls_rjt stat; 935 uint32_t *payload; 936 uint32_t cmd; 937 PRLI *npr; 938 939 payload = cmdiocb->cmd_dmabuf->virt; 940 cmd = *payload; 941 npr = (PRLI *)((uint8_t *)payload + sizeof(uint32_t)); 942 943 if (vport->phba->nvmet_support) { 944 /* Must be a NVME PRLI */ 945 if (cmd == ELS_CMD_PRLI) 946 goto out; 947 } else { 948 /* Initiator mode. */ 949 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 950 goto out; 951 952 /* NPIV ports will RJT initiator only functions */ 953 if (vport->port_type == LPFC_NPIV_PORT && 954 npr->initiatorFunc && !npr->targetFunc) 955 goto out; 956 } 957 return 1; 958 out: 959 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 960 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 961 "state x%x flags x%x port_type: x%x " 962 "npr->initfcn: x%x npr->tgtfcn: x%x\n", 963 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 964 ndlp->nlp_flag, vport->port_type, 965 npr->initiatorFunc, npr->targetFunc); 966 memset(&stat, 0, sizeof(struct ls_rjt)); 967 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 968 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 969 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 970 ndlp, NULL); 971 return 0; 972 } 973 974 static void 975 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 976 struct lpfc_iocbq *cmdiocb) 977 { 978 struct lpfc_hba *phba = vport->phba; 979 struct lpfc_dmabuf *pcmd; 980 uint32_t *lp; 981 PRLI *npr; 982 struct fc_rport *rport = ndlp->rport; 983 u32 roles; 984 985 pcmd = cmdiocb->cmd_dmabuf; 986 lp = (uint32_t *)pcmd->virt; 987 npr = (PRLI *)((uint8_t *)lp + sizeof(uint32_t)); 988 989 if ((npr->prliType == PRLI_FCP_TYPE) || 990 (npr->prliType == PRLI_NVME_TYPE)) { 991 if (npr->initiatorFunc) { 992 if (npr->prliType == PRLI_FCP_TYPE) 993 ndlp->nlp_type |= NLP_FCP_INITIATOR; 994 if (npr->prliType == PRLI_NVME_TYPE) 995 ndlp->nlp_type |= NLP_NVME_INITIATOR; 996 } 997 if (npr->targetFunc) { 998 if (npr->prliType == PRLI_FCP_TYPE) 999 ndlp->nlp_type |= NLP_FCP_TARGET; 1000 if (npr->prliType == PRLI_NVME_TYPE) 1001 ndlp->nlp_type |= NLP_NVME_TARGET; 1002 if (npr->writeXferRdyDis) 1003 ndlp->nlp_flag |= NLP_FIRSTBURST; 1004 } 1005 if (npr->Retry && ndlp->nlp_type & 1006 (NLP_FCP_INITIATOR | NLP_FCP_TARGET)) 1007 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 1008 1009 if (npr->Retry && phba->nsler && 1010 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET)) 1011 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 1012 1013 1014 /* If this driver is in nvme target mode, set the ndlp's fc4 1015 * type to NVME provided the PRLI response claims NVME FC4 1016 * type. Target mode does not issue gft_id so doesn't get 1017 * the fc4 type set until now. 1018 */ 1019 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 1020 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1021 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1022 } 1023 1024 /* Fabric Controllers send FCP PRLI as an initiator but should 1025 * not get recognized as FCP type and registered with transport. 1026 */ 1027 if (npr->prliType == PRLI_FCP_TYPE && 1028 !(ndlp->nlp_type & NLP_FABRIC)) 1029 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1030 } 1031 if (rport) { 1032 /* We need to update the rport role values */ 1033 roles = FC_RPORT_ROLE_UNKNOWN; 1034 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 1035 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 1036 if (ndlp->nlp_type & NLP_FCP_TARGET) 1037 roles |= FC_RPORT_ROLE_FCP_TARGET; 1038 1039 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 1040 "rport rolechg: role:x%x did:x%x flg:x%x", 1041 roles, ndlp->nlp_DID, ndlp->nlp_flag); 1042 1043 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1044 fc_remote_port_rolechg(rport, roles); 1045 } 1046 } 1047 1048 static uint32_t 1049 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 1050 { 1051 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 1052 spin_lock_irq(&ndlp->lock); 1053 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1054 spin_unlock_irq(&ndlp->lock); 1055 return 0; 1056 } 1057 1058 if (!(vport->fc_flag & FC_PT2PT)) { 1059 /* Check config parameter use-adisc or FCP-2 */ 1060 if (vport->cfg_use_adisc && ((vport->fc_flag & FC_RSCN_MODE) || 1061 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 1062 (ndlp->nlp_type & NLP_FCP_TARGET)))) { 1063 spin_lock_irq(&ndlp->lock); 1064 ndlp->nlp_flag |= NLP_NPR_ADISC; 1065 spin_unlock_irq(&ndlp->lock); 1066 return 1; 1067 } 1068 } 1069 1070 spin_lock_irq(&ndlp->lock); 1071 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1072 spin_unlock_irq(&ndlp->lock); 1073 lpfc_unreg_rpi(vport, ndlp); 1074 return 0; 1075 } 1076 1077 /** 1078 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 1079 * @phba : Pointer to lpfc_hba structure. 1080 * @vport: Pointer to lpfc_vport structure. 1081 * @ndlp: Pointer to lpfc_nodelist structure. 1082 * @rpi : rpi to be release. 1083 * 1084 * This function will send a unreg_login mailbox command to the firmware 1085 * to release a rpi. 1086 **/ 1087 static void 1088 lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, 1089 struct lpfc_nodelist *ndlp, uint16_t rpi) 1090 { 1091 LPFC_MBOXQ_t *pmb; 1092 int rc; 1093 1094 /* If there is already an UNREG in progress for this ndlp, 1095 * no need to queue up another one. 1096 */ 1097 if (ndlp->nlp_flag & NLP_UNREG_INP) { 1098 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1099 "1435 release_rpi SKIP UNREG x%x on " 1100 "NPort x%x deferred x%x flg x%x " 1101 "Data: x%px\n", 1102 ndlp->nlp_rpi, ndlp->nlp_DID, 1103 ndlp->nlp_defer_did, 1104 ndlp->nlp_flag, ndlp); 1105 return; 1106 } 1107 1108 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 1109 GFP_KERNEL); 1110 if (!pmb) 1111 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1112 "2796 mailbox memory allocation failed \n"); 1113 else { 1114 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 1115 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1116 pmb->vport = vport; 1117 pmb->ctx_ndlp = lpfc_nlp_get(ndlp); 1118 if (!pmb->ctx_ndlp) { 1119 mempool_free(pmb, phba->mbox_mem_pool); 1120 return; 1121 } 1122 1123 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 1124 (!(vport->fc_flag & FC_OFFLINE_MODE))) 1125 ndlp->nlp_flag |= NLP_UNREG_INP; 1126 1127 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1128 "1437 release_rpi UNREG x%x " 1129 "on NPort x%x flg x%x\n", 1130 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); 1131 1132 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 1133 if (rc == MBX_NOT_FINISHED) { 1134 lpfc_nlp_put(ndlp); 1135 mempool_free(pmb, phba->mbox_mem_pool); 1136 } 1137 } 1138 } 1139 1140 static uint32_t 1141 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1142 void *arg, uint32_t evt) 1143 { 1144 struct lpfc_hba *phba; 1145 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1146 uint16_t rpi; 1147 1148 phba = vport->phba; 1149 /* Release the RPI if reglogin completing */ 1150 if (!(phba->pport->load_flag & FC_UNLOADING) && 1151 (evt == NLP_EVT_CMPL_REG_LOGIN) && 1152 (!pmb->u.mb.mbxStatus)) { 1153 rpi = pmb->u.mb.un.varWords[0]; 1154 lpfc_release_rpi(phba, vport, ndlp, rpi); 1155 } 1156 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1157 "0271 Illegal State Transition: node x%x " 1158 "event x%x, state x%x Data: x%x x%x\n", 1159 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1160 ndlp->nlp_flag); 1161 return ndlp->nlp_state; 1162 } 1163 1164 static uint32_t 1165 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1166 void *arg, uint32_t evt) 1167 { 1168 /* This transition is only legal if we previously 1169 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 1170 * working on the same NPortID, do nothing for this thread 1171 * to stop it. 1172 */ 1173 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 1174 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1175 "0272 Illegal State Transition: node x%x " 1176 "event x%x, state x%x Data: x%x x%x\n", 1177 ndlp->nlp_DID, evt, ndlp->nlp_state, 1178 ndlp->nlp_rpi, ndlp->nlp_flag); 1179 } 1180 return ndlp->nlp_state; 1181 } 1182 1183 /* Start of Discovery State Machine routines */ 1184 1185 static uint32_t 1186 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1187 void *arg, uint32_t evt) 1188 { 1189 struct lpfc_iocbq *cmdiocb; 1190 1191 cmdiocb = (struct lpfc_iocbq *) arg; 1192 1193 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1194 return ndlp->nlp_state; 1195 } 1196 return NLP_STE_FREED_NODE; 1197 } 1198 1199 static uint32_t 1200 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1201 void *arg, uint32_t evt) 1202 { 1203 lpfc_issue_els_logo(vport, ndlp, 0); 1204 return ndlp->nlp_state; 1205 } 1206 1207 static uint32_t 1208 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1209 void *arg, uint32_t evt) 1210 { 1211 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1212 1213 spin_lock_irq(&ndlp->lock); 1214 ndlp->nlp_flag |= NLP_LOGO_ACC; 1215 spin_unlock_irq(&ndlp->lock); 1216 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1217 1218 return ndlp->nlp_state; 1219 } 1220 1221 static uint32_t 1222 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1223 void *arg, uint32_t evt) 1224 { 1225 return NLP_STE_FREED_NODE; 1226 } 1227 1228 static uint32_t 1229 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1230 void *arg, uint32_t evt) 1231 { 1232 return NLP_STE_FREED_NODE; 1233 } 1234 1235 static uint32_t 1236 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 1237 struct lpfc_nodelist *ndlp, 1238 void *arg, uint32_t evt) 1239 { 1240 return ndlp->nlp_state; 1241 } 1242 1243 static uint32_t 1244 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1245 void *arg, uint32_t evt) 1246 { 1247 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1248 struct lpfc_hba *phba = vport->phba; 1249 struct lpfc_iocbq *cmdiocb = arg; 1250 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 1251 uint32_t *lp = (uint32_t *) pcmd->virt; 1252 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1253 struct ls_rjt stat; 1254 int port_cmp; 1255 1256 memset(&stat, 0, sizeof (struct ls_rjt)); 1257 1258 /* For a PLOGI, we only accept if our portname is less 1259 * than the remote portname. 1260 */ 1261 phba->fc_stat.elsLogiCol++; 1262 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1263 sizeof(struct lpfc_name)); 1264 1265 if (port_cmp >= 0) { 1266 /* Reject this request because the remote node will accept 1267 ours */ 1268 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1269 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1270 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1271 NULL); 1272 } else { 1273 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1274 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 1275 (vport->num_disc_nodes)) { 1276 spin_lock_irq(&ndlp->lock); 1277 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1278 spin_unlock_irq(&ndlp->lock); 1279 /* Check if there are more PLOGIs to be sent */ 1280 lpfc_more_plogi(vport); 1281 if (vport->num_disc_nodes == 0) { 1282 spin_lock_irq(shost->host_lock); 1283 vport->fc_flag &= ~FC_NDISC_ACTIVE; 1284 spin_unlock_irq(shost->host_lock); 1285 lpfc_can_disctmo(vport); 1286 lpfc_end_rscn(vport); 1287 } 1288 } 1289 } /* If our portname was less */ 1290 1291 return ndlp->nlp_state; 1292 } 1293 1294 static uint32_t 1295 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1296 void *arg, uint32_t evt) 1297 { 1298 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1299 struct ls_rjt stat; 1300 1301 memset(&stat, 0, sizeof (struct ls_rjt)); 1302 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1303 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1304 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1305 return ndlp->nlp_state; 1306 } 1307 1308 static uint32_t 1309 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1310 void *arg, uint32_t evt) 1311 { 1312 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1313 1314 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1315 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1316 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1317 /* software abort outstanding PLOGI */ 1318 lpfc_els_abort(vport->phba, ndlp); 1319 1320 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1321 return ndlp->nlp_state; 1322 } 1323 1324 static uint32_t 1325 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1326 void *arg, uint32_t evt) 1327 { 1328 struct lpfc_hba *phba = vport->phba; 1329 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1330 1331 /* software abort outstanding PLOGI */ 1332 lpfc_els_abort(phba, ndlp); 1333 1334 if (evt == NLP_EVT_RCV_LOGO) { 1335 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1336 } else { 1337 lpfc_issue_els_logo(vport, ndlp, 0); 1338 } 1339 1340 /* Put ndlp in npr state set plogi timer for 1 sec */ 1341 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1342 spin_lock_irq(&ndlp->lock); 1343 ndlp->nlp_flag |= NLP_DELAY_TMO; 1344 spin_unlock_irq(&ndlp->lock); 1345 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1346 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1347 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1348 1349 return ndlp->nlp_state; 1350 } 1351 1352 static uint32_t 1353 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1354 struct lpfc_nodelist *ndlp, 1355 void *arg, 1356 uint32_t evt) 1357 { 1358 struct lpfc_hba *phba = vport->phba; 1359 struct lpfc_iocbq *cmdiocb, *rspiocb; 1360 struct lpfc_dmabuf *pcmd, *prsp; 1361 uint32_t *lp; 1362 uint32_t vid, flag; 1363 struct serv_parm *sp; 1364 uint32_t ed_tov; 1365 LPFC_MBOXQ_t *mbox; 1366 int rc; 1367 u32 ulp_status; 1368 u32 did; 1369 1370 cmdiocb = (struct lpfc_iocbq *) arg; 1371 rspiocb = cmdiocb->rsp_iocb; 1372 1373 ulp_status = get_job_ulpstatus(phba, rspiocb); 1374 1375 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1376 /* Recovery from PLOGI collision logic */ 1377 return ndlp->nlp_state; 1378 } 1379 1380 if (ulp_status) 1381 goto out; 1382 1383 pcmd = cmdiocb->cmd_dmabuf; 1384 1385 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1386 if (!prsp) 1387 goto out; 1388 1389 lp = (uint32_t *) prsp->virt; 1390 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1391 1392 /* Some switches have FDMI servers returning 0 for WWN */ 1393 if ((ndlp->nlp_DID != FDMI_DID) && 1394 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1395 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1396 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1397 "0142 PLOGI RSP: Invalid WWN.\n"); 1398 goto out; 1399 } 1400 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1401 goto out; 1402 /* PLOGI chkparm OK */ 1403 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1404 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1405 ndlp->nlp_DID, ndlp->nlp_state, 1406 ndlp->nlp_flag, ndlp->nlp_rpi); 1407 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1408 ndlp->nlp_fcp_info |= CLASS2; 1409 else 1410 ndlp->nlp_fcp_info |= CLASS3; 1411 1412 ndlp->nlp_class_sup = 0; 1413 if (sp->cls1.classValid) 1414 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1415 if (sp->cls2.classValid) 1416 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1417 if (sp->cls3.classValid) 1418 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1419 if (sp->cls4.classValid) 1420 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1421 ndlp->nlp_maxframe = 1422 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1423 1424 if ((vport->fc_flag & FC_PT2PT) && 1425 (vport->fc_flag & FC_PT2PT_PLOGI)) { 1426 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1427 if (sp->cmn.edtovResolution) { 1428 /* E_D_TOV ticks are in nanoseconds */ 1429 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1430 } 1431 1432 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 1433 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1434 sp->cmn.valid_vendor_ver_level) { 1435 vid = be32_to_cpu(sp->un.vv.vid); 1436 flag = be32_to_cpu(sp->un.vv.flags); 1437 if ((vid == LPFC_VV_EMLX_ID) && 1438 (flag & LPFC_VV_SUPPRESS_RSP)) 1439 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 1440 } 1441 1442 /* 1443 * Use the larger EDTOV 1444 * RATOV = 2 * EDTOV for pt-to-pt 1445 */ 1446 if (ed_tov > phba->fc_edtov) 1447 phba->fc_edtov = ed_tov; 1448 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1449 1450 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1451 1452 /* Issue config_link / reg_vfi to account for updated TOV's */ 1453 if (phba->sli_rev == LPFC_SLI_REV4) { 1454 lpfc_issue_reg_vfi(vport); 1455 } else { 1456 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1457 if (!mbox) { 1458 lpfc_printf_vlog(vport, KERN_ERR, 1459 LOG_TRACE_EVENT, 1460 "0133 PLOGI: no memory " 1461 "for config_link " 1462 "Data: x%x x%x x%x x%x\n", 1463 ndlp->nlp_DID, ndlp->nlp_state, 1464 ndlp->nlp_flag, ndlp->nlp_rpi); 1465 goto out; 1466 } 1467 1468 lpfc_config_link(phba, mbox); 1469 1470 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1471 mbox->vport = vport; 1472 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1473 if (rc == MBX_NOT_FINISHED) { 1474 mempool_free(mbox, phba->mbox_mem_pool); 1475 goto out; 1476 } 1477 } 1478 } 1479 1480 lpfc_unreg_rpi(vport, ndlp); 1481 1482 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1483 if (!mbox) { 1484 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1485 "0018 PLOGI: no memory for reg_login " 1486 "Data: x%x x%x x%x x%x\n", 1487 ndlp->nlp_DID, ndlp->nlp_state, 1488 ndlp->nlp_flag, ndlp->nlp_rpi); 1489 goto out; 1490 } 1491 1492 did = get_job_els_rsp64_did(phba, cmdiocb); 1493 1494 if (lpfc_reg_rpi(phba, vport->vpi, did, 1495 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1496 switch (ndlp->nlp_DID) { 1497 case NameServer_DID: 1498 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1499 /* Fabric Controller Node needs these parameters. */ 1500 memcpy(&ndlp->fc_sparam, sp, sizeof(struct serv_parm)); 1501 break; 1502 case FDMI_DID: 1503 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1504 break; 1505 default: 1506 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1507 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1508 } 1509 1510 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1511 if (!mbox->ctx_ndlp) 1512 goto out; 1513 1514 mbox->vport = vport; 1515 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1516 != MBX_NOT_FINISHED) { 1517 lpfc_nlp_set_state(vport, ndlp, 1518 NLP_STE_REG_LOGIN_ISSUE); 1519 return ndlp->nlp_state; 1520 } 1521 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1522 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1523 /* decrement node reference count to the failed mbox 1524 * command 1525 */ 1526 lpfc_nlp_put(ndlp); 1527 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 1528 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1529 "0134 PLOGI: cannot issue reg_login " 1530 "Data: x%x x%x x%x x%x\n", 1531 ndlp->nlp_DID, ndlp->nlp_state, 1532 ndlp->nlp_flag, ndlp->nlp_rpi); 1533 } else { 1534 mempool_free(mbox, phba->mbox_mem_pool); 1535 1536 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1537 "0135 PLOGI: cannot format reg_login " 1538 "Data: x%x x%x x%x x%x\n", 1539 ndlp->nlp_DID, ndlp->nlp_state, 1540 ndlp->nlp_flag, ndlp->nlp_rpi); 1541 } 1542 1543 1544 out: 1545 if (ndlp->nlp_DID == NameServer_DID) { 1546 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1547 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1548 "0261 Cannot Register NameServer login\n"); 1549 } 1550 1551 /* 1552 ** In case the node reference counter does not go to zero, ensure that 1553 ** the stale state for the node is not processed. 1554 */ 1555 1556 ndlp->nlp_prev_state = ndlp->nlp_state; 1557 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1558 return NLP_STE_FREED_NODE; 1559 } 1560 1561 static uint32_t 1562 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1563 void *arg, uint32_t evt) 1564 { 1565 return ndlp->nlp_state; 1566 } 1567 1568 static uint32_t 1569 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1570 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1571 { 1572 struct lpfc_hba *phba; 1573 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1574 MAILBOX_t *mb = &pmb->u.mb; 1575 uint16_t rpi; 1576 1577 phba = vport->phba; 1578 /* Release the RPI */ 1579 if (!(phba->pport->load_flag & FC_UNLOADING) && 1580 !mb->mbxStatus) { 1581 rpi = pmb->u.mb.un.varWords[0]; 1582 lpfc_release_rpi(phba, vport, ndlp, rpi); 1583 } 1584 return ndlp->nlp_state; 1585 } 1586 1587 static uint32_t 1588 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1589 void *arg, uint32_t evt) 1590 { 1591 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1592 spin_lock_irq(&ndlp->lock); 1593 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1594 spin_unlock_irq(&ndlp->lock); 1595 return ndlp->nlp_state; 1596 } else { 1597 /* software abort outstanding PLOGI */ 1598 lpfc_els_abort(vport->phba, ndlp); 1599 1600 lpfc_drop_node(vport, ndlp); 1601 return NLP_STE_FREED_NODE; 1602 } 1603 } 1604 1605 static uint32_t 1606 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1607 struct lpfc_nodelist *ndlp, 1608 void *arg, 1609 uint32_t evt) 1610 { 1611 struct lpfc_hba *phba = vport->phba; 1612 1613 /* Don't do anything that will mess up processing of the 1614 * previous RSCN. 1615 */ 1616 if (vport->fc_flag & FC_RSCN_DEFERRED) 1617 return ndlp->nlp_state; 1618 1619 /* software abort outstanding PLOGI */ 1620 lpfc_els_abort(phba, ndlp); 1621 1622 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1623 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1624 spin_lock_irq(&ndlp->lock); 1625 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1626 spin_unlock_irq(&ndlp->lock); 1627 1628 return ndlp->nlp_state; 1629 } 1630 1631 static uint32_t 1632 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1633 void *arg, uint32_t evt) 1634 { 1635 struct lpfc_hba *phba = vport->phba; 1636 struct lpfc_iocbq *cmdiocb; 1637 1638 /* software abort outstanding ADISC */ 1639 lpfc_els_abort(phba, ndlp); 1640 1641 cmdiocb = (struct lpfc_iocbq *) arg; 1642 1643 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1644 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1645 spin_lock_irq(&ndlp->lock); 1646 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1647 spin_unlock_irq(&ndlp->lock); 1648 if (vport->num_disc_nodes) 1649 lpfc_more_adisc(vport); 1650 } 1651 return ndlp->nlp_state; 1652 } 1653 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1654 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1655 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1656 1657 return ndlp->nlp_state; 1658 } 1659 1660 static uint32_t 1661 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1662 void *arg, uint32_t evt) 1663 { 1664 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1665 1666 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1667 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1668 return ndlp->nlp_state; 1669 } 1670 1671 static uint32_t 1672 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1673 void *arg, uint32_t evt) 1674 { 1675 struct lpfc_hba *phba = vport->phba; 1676 struct lpfc_iocbq *cmdiocb; 1677 1678 cmdiocb = (struct lpfc_iocbq *) arg; 1679 1680 /* software abort outstanding ADISC */ 1681 lpfc_els_abort(phba, ndlp); 1682 1683 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1684 return ndlp->nlp_state; 1685 } 1686 1687 static uint32_t 1688 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1689 struct lpfc_nodelist *ndlp, 1690 void *arg, uint32_t evt) 1691 { 1692 struct lpfc_iocbq *cmdiocb; 1693 1694 cmdiocb = (struct lpfc_iocbq *) arg; 1695 1696 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1697 return ndlp->nlp_state; 1698 } 1699 1700 static uint32_t 1701 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1702 void *arg, uint32_t evt) 1703 { 1704 struct lpfc_iocbq *cmdiocb; 1705 1706 cmdiocb = (struct lpfc_iocbq *) arg; 1707 1708 /* Treat like rcv logo */ 1709 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1710 return ndlp->nlp_state; 1711 } 1712 1713 static uint32_t 1714 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1715 struct lpfc_nodelist *ndlp, 1716 void *arg, uint32_t evt) 1717 { 1718 struct lpfc_hba *phba = vport->phba; 1719 struct lpfc_iocbq *cmdiocb, *rspiocb; 1720 ADISC *ap; 1721 int rc; 1722 u32 ulp_status; 1723 1724 cmdiocb = (struct lpfc_iocbq *) arg; 1725 rspiocb = cmdiocb->rsp_iocb; 1726 1727 ulp_status = get_job_ulpstatus(phba, rspiocb); 1728 1729 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1730 1731 if ((ulp_status) || 1732 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1733 /* 1 sec timeout */ 1734 mod_timer(&ndlp->nlp_delayfunc, 1735 jiffies + msecs_to_jiffies(1000)); 1736 spin_lock_irq(&ndlp->lock); 1737 ndlp->nlp_flag |= NLP_DELAY_TMO; 1738 spin_unlock_irq(&ndlp->lock); 1739 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1740 1741 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1742 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1743 lpfc_unreg_rpi(vport, ndlp); 1744 return ndlp->nlp_state; 1745 } 1746 1747 if (phba->sli_rev == LPFC_SLI_REV4) { 1748 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1749 if (rc) { 1750 /* Stay in state and retry. */ 1751 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1752 return ndlp->nlp_state; 1753 } 1754 } 1755 1756 if (ndlp->nlp_type & NLP_FCP_TARGET) 1757 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1758 1759 if (ndlp->nlp_type & NLP_NVME_TARGET) 1760 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1761 1762 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 1763 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1764 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1765 } else { 1766 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1767 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1768 } 1769 1770 return ndlp->nlp_state; 1771 } 1772 1773 static uint32_t 1774 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1775 void *arg, uint32_t evt) 1776 { 1777 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1778 spin_lock_irq(&ndlp->lock); 1779 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1780 spin_unlock_irq(&ndlp->lock); 1781 return ndlp->nlp_state; 1782 } else { 1783 /* software abort outstanding ADISC */ 1784 lpfc_els_abort(vport->phba, ndlp); 1785 1786 lpfc_drop_node(vport, ndlp); 1787 return NLP_STE_FREED_NODE; 1788 } 1789 } 1790 1791 static uint32_t 1792 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1793 struct lpfc_nodelist *ndlp, 1794 void *arg, 1795 uint32_t evt) 1796 { 1797 struct lpfc_hba *phba = vport->phba; 1798 1799 /* Don't do anything that will mess up processing of the 1800 * previous RSCN. 1801 */ 1802 if (vport->fc_flag & FC_RSCN_DEFERRED) 1803 return ndlp->nlp_state; 1804 1805 /* software abort outstanding ADISC */ 1806 lpfc_els_abort(phba, ndlp); 1807 1808 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1809 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1810 spin_lock_irq(&ndlp->lock); 1811 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1812 spin_unlock_irq(&ndlp->lock); 1813 lpfc_disc_set_adisc(vport, ndlp); 1814 return ndlp->nlp_state; 1815 } 1816 1817 static uint32_t 1818 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1819 struct lpfc_nodelist *ndlp, 1820 void *arg, 1821 uint32_t evt) 1822 { 1823 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1824 1825 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1826 return ndlp->nlp_state; 1827 } 1828 1829 static uint32_t 1830 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1831 struct lpfc_nodelist *ndlp, 1832 void *arg, 1833 uint32_t evt) 1834 { 1835 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1836 struct ls_rjt stat; 1837 1838 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1839 return ndlp->nlp_state; 1840 } 1841 if (vport->phba->nvmet_support) { 1842 /* NVME Target mode. Handle and respond to the PRLI and 1843 * transition to UNMAPPED provided the RPI has completed 1844 * registration. 1845 */ 1846 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 1847 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1848 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1849 } else { 1850 /* RPI registration has not completed. Reject the PRLI 1851 * to prevent an illegal state transition when the 1852 * rpi registration does complete. 1853 */ 1854 memset(&stat, 0, sizeof(struct ls_rjt)); 1855 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1856 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1857 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1858 ndlp, NULL); 1859 return ndlp->nlp_state; 1860 } 1861 } else { 1862 /* Initiator mode. */ 1863 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1864 } 1865 return ndlp->nlp_state; 1866 } 1867 1868 static uint32_t 1869 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1870 struct lpfc_nodelist *ndlp, 1871 void *arg, 1872 uint32_t evt) 1873 { 1874 struct lpfc_hba *phba = vport->phba; 1875 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1876 LPFC_MBOXQ_t *mb; 1877 LPFC_MBOXQ_t *nextmb; 1878 1879 cmdiocb = (struct lpfc_iocbq *) arg; 1880 1881 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1882 if ((mb = phba->sli.mbox_active)) { 1883 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1884 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1885 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1886 lpfc_nlp_put(ndlp); 1887 mb->ctx_ndlp = NULL; 1888 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1889 } 1890 } 1891 1892 spin_lock_irq(&phba->hbalock); 1893 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1894 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1895 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1896 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1897 lpfc_nlp_put(ndlp); 1898 list_del(&mb->list); 1899 phba->sli.mboxq_cnt--; 1900 lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_LOCKED); 1901 } 1902 } 1903 spin_unlock_irq(&phba->hbalock); 1904 1905 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1906 return ndlp->nlp_state; 1907 } 1908 1909 static uint32_t 1910 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1911 struct lpfc_nodelist *ndlp, 1912 void *arg, 1913 uint32_t evt) 1914 { 1915 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1916 1917 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1918 return ndlp->nlp_state; 1919 } 1920 1921 static uint32_t 1922 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1923 struct lpfc_nodelist *ndlp, 1924 void *arg, 1925 uint32_t evt) 1926 { 1927 struct lpfc_iocbq *cmdiocb; 1928 1929 cmdiocb = (struct lpfc_iocbq *) arg; 1930 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1931 return ndlp->nlp_state; 1932 } 1933 1934 static uint32_t 1935 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1936 struct lpfc_nodelist *ndlp, 1937 void *arg, 1938 uint32_t evt) 1939 { 1940 struct lpfc_hba *phba = vport->phba; 1941 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1942 MAILBOX_t *mb = &pmb->u.mb; 1943 uint32_t did = mb->un.varWords[1]; 1944 1945 if (mb->mbxStatus) { 1946 /* RegLogin failed */ 1947 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1948 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1949 "x%x\n", 1950 did, mb->mbxStatus, vport->port_state, 1951 mb->un.varRegLogin.vpi, 1952 mb->un.varRegLogin.rpi); 1953 /* 1954 * If RegLogin failed due to lack of HBA resources do not 1955 * retry discovery. 1956 */ 1957 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1958 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1959 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1960 return ndlp->nlp_state; 1961 } 1962 1963 /* Put ndlp in npr state set plogi timer for 1 sec */ 1964 mod_timer(&ndlp->nlp_delayfunc, 1965 jiffies + msecs_to_jiffies(1000 * 1)); 1966 spin_lock_irq(&ndlp->lock); 1967 ndlp->nlp_flag |= NLP_DELAY_TMO; 1968 spin_unlock_irq(&ndlp->lock); 1969 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1970 1971 lpfc_issue_els_logo(vport, ndlp, 0); 1972 return ndlp->nlp_state; 1973 } 1974 1975 /* SLI4 ports have preallocated logical rpis. */ 1976 if (phba->sli_rev < LPFC_SLI_REV4) 1977 ndlp->nlp_rpi = mb->un.varWords[0]; 1978 1979 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1980 1981 /* Only if we are not a fabric nport do we issue PRLI */ 1982 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1983 "3066 RegLogin Complete on x%x x%x x%x\n", 1984 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 1985 if (!(ndlp->nlp_type & NLP_FABRIC) && 1986 (phba->nvmet_support == 0)) { 1987 /* The driver supports FCP and NVME concurrently. If the 1988 * ndlp's nlp_fc4_type is still zero, the driver doesn't 1989 * know what PRLI to send yet. Figure that out now and 1990 * call PRLI depending on the outcome. 1991 */ 1992 if (vport->fc_flag & FC_PT2PT) { 1993 /* If we are pt2pt, there is no Fabric to determine 1994 * the FC4 type of the remote nport. So if NVME 1995 * is configured try it. 1996 */ 1997 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1998 if ((!(vport->fc_flag & FC_PT2PT_NO_NVME)) && 1999 (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH || 2000 vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 2001 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 2002 /* We need to update the localport also */ 2003 lpfc_nvme_update_localport(vport); 2004 } 2005 2006 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2007 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 2008 2009 } else if (ndlp->nlp_fc4_type == 0) { 2010 /* If we are only configured for FCP, the driver 2011 * should just issue PRLI for FCP. Otherwise issue 2012 * GFT_ID to determine if remote port supports NVME. 2013 */ 2014 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 2015 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0, 2016 ndlp->nlp_DID); 2017 return ndlp->nlp_state; 2018 } 2019 ndlp->nlp_fc4_type = NLP_FC4_FCP; 2020 } 2021 2022 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2023 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 2024 if (lpfc_issue_els_prli(vport, ndlp, 0)) { 2025 lpfc_issue_els_logo(vport, ndlp, 0); 2026 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2027 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2028 } 2029 } else { 2030 if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support) 2031 phba->targetport->port_id = vport->fc_myDID; 2032 2033 /* Only Fabric ports should transition. NVME target 2034 * must complete PRLI. 2035 */ 2036 if (ndlp->nlp_type & NLP_FABRIC) { 2037 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2038 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2039 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2040 } 2041 } 2042 return ndlp->nlp_state; 2043 } 2044 2045 static uint32_t 2046 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 2047 struct lpfc_nodelist *ndlp, 2048 void *arg, 2049 uint32_t evt) 2050 { 2051 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2052 spin_lock_irq(&ndlp->lock); 2053 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2054 spin_unlock_irq(&ndlp->lock); 2055 return ndlp->nlp_state; 2056 } else { 2057 lpfc_drop_node(vport, ndlp); 2058 return NLP_STE_FREED_NODE; 2059 } 2060 } 2061 2062 static uint32_t 2063 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 2064 struct lpfc_nodelist *ndlp, 2065 void *arg, 2066 uint32_t evt) 2067 { 2068 /* Don't do anything that will mess up processing of the 2069 * previous RSCN. 2070 */ 2071 if (vport->fc_flag & FC_RSCN_DEFERRED) 2072 return ndlp->nlp_state; 2073 2074 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2075 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2076 spin_lock_irq(&ndlp->lock); 2077 2078 /* If we are a target we won't immediately transition into PRLI, 2079 * so if REG_LOGIN already completed we don't need to ignore it. 2080 */ 2081 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) || 2082 !vport->phba->nvmet_support) 2083 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 2084 2085 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2086 spin_unlock_irq(&ndlp->lock); 2087 lpfc_disc_set_adisc(vport, ndlp); 2088 return ndlp->nlp_state; 2089 } 2090 2091 static uint32_t 2092 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2093 void *arg, uint32_t evt) 2094 { 2095 struct lpfc_iocbq *cmdiocb; 2096 2097 cmdiocb = (struct lpfc_iocbq *) arg; 2098 2099 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2100 return ndlp->nlp_state; 2101 } 2102 2103 static uint32_t 2104 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2105 void *arg, uint32_t evt) 2106 { 2107 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2108 2109 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2110 return ndlp->nlp_state; 2111 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2112 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2113 return ndlp->nlp_state; 2114 } 2115 2116 static uint32_t 2117 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2118 void *arg, uint32_t evt) 2119 { 2120 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2121 2122 /* Software abort outstanding PRLI before sending acc */ 2123 lpfc_els_abort(vport->phba, ndlp); 2124 2125 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2126 return ndlp->nlp_state; 2127 } 2128 2129 static uint32_t 2130 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2131 void *arg, uint32_t evt) 2132 { 2133 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2134 2135 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2136 return ndlp->nlp_state; 2137 } 2138 2139 /* This routine is envoked when we rcv a PRLO request from a nport 2140 * we are logged into. We should send back a PRLO rsp setting the 2141 * appropriate bits. 2142 * NEXT STATE = PRLI_ISSUE 2143 */ 2144 static uint32_t 2145 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2146 void *arg, uint32_t evt) 2147 { 2148 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2149 2150 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2151 return ndlp->nlp_state; 2152 } 2153 2154 static uint32_t 2155 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2156 void *arg, uint32_t evt) 2157 { 2158 struct lpfc_iocbq *cmdiocb, *rspiocb; 2159 struct lpfc_hba *phba = vport->phba; 2160 PRLI *npr; 2161 struct lpfc_nvme_prli *nvpr; 2162 void *temp_ptr; 2163 u32 ulp_status; 2164 bool acc_imode_sps = false; 2165 2166 cmdiocb = (struct lpfc_iocbq *) arg; 2167 rspiocb = cmdiocb->rsp_iocb; 2168 2169 ulp_status = get_job_ulpstatus(phba, rspiocb); 2170 2171 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 2172 * format is different so NULL the two PRLI types so that the 2173 * driver correctly gets the correct context. 2174 */ 2175 npr = NULL; 2176 nvpr = NULL; 2177 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 2178 if (cmdiocb->cmd_flag & LPFC_PRLI_FCP_REQ) 2179 npr = (PRLI *) temp_ptr; 2180 else if (cmdiocb->cmd_flag & LPFC_PRLI_NVME_REQ) 2181 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 2182 2183 if (ulp_status) { 2184 if ((vport->port_type == LPFC_NPIV_PORT) && 2185 vport->cfg_restrict_login) { 2186 goto out; 2187 } 2188 2189 /* Adjust the nlp_type accordingly if the PRLI failed */ 2190 if (npr) 2191 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2192 if (nvpr) 2193 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 2194 2195 /* We can't set the DSM state till BOTH PRLIs complete */ 2196 goto out_err; 2197 } 2198 2199 if (npr && npr->prliType == PRLI_FCP_TYPE) { 2200 lpfc_printf_vlog(vport, KERN_INFO, 2201 LOG_ELS | LOG_NODE | LOG_DISCOVERY, 2202 "6028 FCP NPR PRLI Cmpl Init %d Target %d " 2203 "EIP %d AccCode x%x\n", 2204 npr->initiatorFunc, npr->targetFunc, 2205 npr->estabImagePair, npr->acceptRspCode); 2206 2207 if (npr->acceptRspCode == PRLI_INV_SRV_PARM) { 2208 /* Strict initiators don't establish an image pair. */ 2209 if (npr->initiatorFunc && !npr->targetFunc && 2210 !npr->estabImagePair) 2211 acc_imode_sps = true; 2212 } 2213 2214 if (npr->acceptRspCode == PRLI_REQ_EXECUTED || acc_imode_sps) { 2215 if (npr->initiatorFunc) 2216 ndlp->nlp_type |= NLP_FCP_INITIATOR; 2217 if (npr->targetFunc) { 2218 ndlp->nlp_type |= NLP_FCP_TARGET; 2219 if (npr->writeXferRdyDis) 2220 ndlp->nlp_flag |= NLP_FIRSTBURST; 2221 } 2222 if (npr->Retry) 2223 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 2224 } 2225 } else if (nvpr && 2226 (bf_get_be32(prli_acc_rsp_code, nvpr) == 2227 PRLI_REQ_EXECUTED) && 2228 (bf_get_be32(prli_type_code, nvpr) == 2229 PRLI_NVME_TYPE)) { 2230 2231 /* Complete setting up the remote ndlp personality. */ 2232 if (bf_get_be32(prli_init, nvpr)) 2233 ndlp->nlp_type |= NLP_NVME_INITIATOR; 2234 2235 if (phba->nsler && bf_get_be32(prli_nsler, nvpr) && 2236 bf_get_be32(prli_conf, nvpr)) 2237 2238 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 2239 else 2240 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 2241 2242 /* Target driver cannot solicit NVME FB. */ 2243 if (bf_get_be32(prli_tgt, nvpr)) { 2244 /* Complete the nvme target roles. The transport 2245 * needs to know if the rport is capable of 2246 * discovery in addition to its role. 2247 */ 2248 ndlp->nlp_type |= NLP_NVME_TARGET; 2249 if (bf_get_be32(prli_disc, nvpr)) 2250 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 2251 2252 /* 2253 * If prli_fba is set, the Target supports FirstBurst. 2254 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 2255 * otherwise it defines the actual size supported by 2256 * the NVME Target. 2257 */ 2258 if ((bf_get_be32(prli_fba, nvpr) == 1) && 2259 (phba->cfg_nvme_enable_fb) && 2260 (!phba->nvmet_support)) { 2261 /* Both sides support FB. The target's first 2262 * burst size is a 512 byte encoded value. 2263 */ 2264 ndlp->nlp_flag |= NLP_FIRSTBURST; 2265 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2266 nvpr); 2267 2268 /* Expressed in units of 512 bytes */ 2269 if (ndlp->nvme_fb_size) 2270 ndlp->nvme_fb_size <<= 2271 LPFC_NVME_FB_SHIFT; 2272 else 2273 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2274 } 2275 } 2276 2277 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2278 "6029 NVME PRLI Cmpl w1 x%08x " 2279 "w4 x%08x w5 x%08x flag x%x, " 2280 "fcp_info x%x nlp_type x%x\n", 2281 be32_to_cpu(nvpr->word1), 2282 be32_to_cpu(nvpr->word4), 2283 be32_to_cpu(nvpr->word5), 2284 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2285 ndlp->nlp_type); 2286 } 2287 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2288 (vport->port_type == LPFC_NPIV_PORT) && 2289 vport->cfg_restrict_login) { 2290 out: 2291 spin_lock_irq(&ndlp->lock); 2292 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 2293 spin_unlock_irq(&ndlp->lock); 2294 lpfc_issue_els_logo(vport, ndlp, 0); 2295 2296 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2297 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2298 return ndlp->nlp_state; 2299 } 2300 2301 out_err: 2302 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2303 * are complete. 2304 */ 2305 if (ndlp->fc4_prli_sent == 0) { 2306 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2307 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2308 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2309 else if (ndlp->nlp_type & 2310 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2311 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2312 } else 2313 lpfc_printf_vlog(vport, 2314 KERN_INFO, LOG_ELS, 2315 "3067 PRLI's still outstanding " 2316 "on x%06x - count %d, Pend Node Mode " 2317 "transition...\n", 2318 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2319 2320 return ndlp->nlp_state; 2321 } 2322 2323 /*! lpfc_device_rm_prli_issue 2324 * 2325 * \pre 2326 * \post 2327 * \param phba 2328 * \param ndlp 2329 * \param arg 2330 * \param evt 2331 * \return uint32_t 2332 * 2333 * \b Description: 2334 * This routine is envoked when we a request to remove a nport we are in the 2335 * process of PRLIing. We should software abort outstanding prli, unreg 2336 * login, send a logout. We will change node state to UNUSED_NODE, put it 2337 * on plogi list so it can be freed when LOGO completes. 2338 * 2339 */ 2340 2341 static uint32_t 2342 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2343 void *arg, uint32_t evt) 2344 { 2345 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2346 spin_lock_irq(&ndlp->lock); 2347 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2348 spin_unlock_irq(&ndlp->lock); 2349 return ndlp->nlp_state; 2350 } else { 2351 /* software abort outstanding PLOGI */ 2352 lpfc_els_abort(vport->phba, ndlp); 2353 2354 lpfc_drop_node(vport, ndlp); 2355 return NLP_STE_FREED_NODE; 2356 } 2357 } 2358 2359 2360 /*! lpfc_device_recov_prli_issue 2361 * 2362 * \pre 2363 * \post 2364 * \param phba 2365 * \param ndlp 2366 * \param arg 2367 * \param evt 2368 * \return uint32_t 2369 * 2370 * \b Description: 2371 * The routine is envoked when the state of a device is unknown, like 2372 * during a link down. We should remove the nodelist entry from the 2373 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2374 * outstanding PRLI command, then free the node entry. 2375 */ 2376 static uint32_t 2377 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2378 struct lpfc_nodelist *ndlp, 2379 void *arg, 2380 uint32_t evt) 2381 { 2382 struct lpfc_hba *phba = vport->phba; 2383 2384 /* Don't do anything that will mess up processing of the 2385 * previous RSCN. 2386 */ 2387 if (vport->fc_flag & FC_RSCN_DEFERRED) 2388 return ndlp->nlp_state; 2389 2390 /* software abort outstanding PRLI */ 2391 lpfc_els_abort(phba, ndlp); 2392 2393 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2394 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2395 spin_lock_irq(&ndlp->lock); 2396 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2397 spin_unlock_irq(&ndlp->lock); 2398 lpfc_disc_set_adisc(vport, ndlp); 2399 return ndlp->nlp_state; 2400 } 2401 2402 static uint32_t 2403 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2404 void *arg, uint32_t evt) 2405 { 2406 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2407 struct ls_rjt stat; 2408 2409 memset(&stat, 0, sizeof(struct ls_rjt)); 2410 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2411 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2412 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2413 return ndlp->nlp_state; 2414 } 2415 2416 static uint32_t 2417 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2418 void *arg, uint32_t evt) 2419 { 2420 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2421 struct ls_rjt stat; 2422 2423 memset(&stat, 0, sizeof(struct ls_rjt)); 2424 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2425 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2426 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2427 return ndlp->nlp_state; 2428 } 2429 2430 static uint32_t 2431 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2432 void *arg, uint32_t evt) 2433 { 2434 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2435 2436 spin_lock_irq(&ndlp->lock); 2437 ndlp->nlp_flag |= NLP_LOGO_ACC; 2438 spin_unlock_irq(&ndlp->lock); 2439 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2440 return ndlp->nlp_state; 2441 } 2442 2443 static uint32_t 2444 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2445 void *arg, uint32_t evt) 2446 { 2447 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2448 struct ls_rjt stat; 2449 2450 memset(&stat, 0, sizeof(struct ls_rjt)); 2451 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2452 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2453 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2454 return ndlp->nlp_state; 2455 } 2456 2457 static uint32_t 2458 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2459 void *arg, uint32_t evt) 2460 { 2461 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2462 struct ls_rjt stat; 2463 2464 memset(&stat, 0, sizeof(struct ls_rjt)); 2465 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2466 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2467 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2468 return ndlp->nlp_state; 2469 } 2470 2471 static uint32_t 2472 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2473 void *arg, uint32_t evt) 2474 { 2475 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2476 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2477 spin_lock_irq(&ndlp->lock); 2478 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2479 spin_unlock_irq(&ndlp->lock); 2480 lpfc_disc_set_adisc(vport, ndlp); 2481 return ndlp->nlp_state; 2482 } 2483 2484 static uint32_t 2485 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2486 void *arg, uint32_t evt) 2487 { 2488 /* 2489 * DevLoss has timed out and is calling for Device Remove. 2490 * In this case, abort the LOGO and cleanup the ndlp 2491 */ 2492 2493 lpfc_unreg_rpi(vport, ndlp); 2494 /* software abort outstanding PLOGI */ 2495 lpfc_els_abort(vport->phba, ndlp); 2496 lpfc_drop_node(vport, ndlp); 2497 return NLP_STE_FREED_NODE; 2498 } 2499 2500 static uint32_t 2501 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2502 struct lpfc_nodelist *ndlp, 2503 void *arg, uint32_t evt) 2504 { 2505 /* 2506 * Device Recovery events have no meaning for a node with a LOGO 2507 * outstanding. The LOGO has to complete first and handle the 2508 * node from that point. 2509 */ 2510 return ndlp->nlp_state; 2511 } 2512 2513 static uint32_t 2514 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2515 void *arg, uint32_t evt) 2516 { 2517 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2518 2519 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2520 return ndlp->nlp_state; 2521 } 2522 2523 static uint32_t 2524 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2525 void *arg, uint32_t evt) 2526 { 2527 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2528 2529 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2530 return ndlp->nlp_state; 2531 2532 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2533 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2534 return ndlp->nlp_state; 2535 } 2536 2537 static uint32_t 2538 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2539 void *arg, uint32_t evt) 2540 { 2541 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2542 2543 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2544 return ndlp->nlp_state; 2545 } 2546 2547 static uint32_t 2548 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2549 void *arg, uint32_t evt) 2550 { 2551 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2552 2553 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2554 return ndlp->nlp_state; 2555 } 2556 2557 static uint32_t 2558 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2559 void *arg, uint32_t evt) 2560 { 2561 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2562 2563 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2564 return ndlp->nlp_state; 2565 } 2566 2567 static uint32_t 2568 lpfc_device_rm_unmap_node(struct lpfc_vport *vport, 2569 struct lpfc_nodelist *ndlp, 2570 void *arg, 2571 uint32_t evt) 2572 { 2573 lpfc_drop_node(vport, ndlp); 2574 return NLP_STE_FREED_NODE; 2575 } 2576 2577 static uint32_t 2578 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2579 struct lpfc_nodelist *ndlp, 2580 void *arg, 2581 uint32_t evt) 2582 { 2583 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2584 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2585 spin_lock_irq(&ndlp->lock); 2586 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2587 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2588 spin_unlock_irq(&ndlp->lock); 2589 lpfc_disc_set_adisc(vport, ndlp); 2590 2591 return ndlp->nlp_state; 2592 } 2593 2594 static uint32_t 2595 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2596 void *arg, uint32_t evt) 2597 { 2598 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2599 2600 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2601 return ndlp->nlp_state; 2602 } 2603 2604 static uint32_t 2605 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2606 void *arg, uint32_t evt) 2607 { 2608 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2609 2610 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2611 return ndlp->nlp_state; 2612 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2613 return ndlp->nlp_state; 2614 } 2615 2616 static uint32_t 2617 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2618 void *arg, uint32_t evt) 2619 { 2620 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2621 2622 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2623 return ndlp->nlp_state; 2624 } 2625 2626 static uint32_t 2627 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2628 struct lpfc_nodelist *ndlp, 2629 void *arg, uint32_t evt) 2630 { 2631 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2632 2633 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2634 return ndlp->nlp_state; 2635 } 2636 2637 static uint32_t 2638 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2639 void *arg, uint32_t evt) 2640 { 2641 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2642 2643 /* flush the target */ 2644 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2645 2646 /* Treat like rcv logo */ 2647 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2648 return ndlp->nlp_state; 2649 } 2650 2651 static uint32_t 2652 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2653 struct lpfc_nodelist *ndlp, 2654 void *arg, 2655 uint32_t evt) 2656 { 2657 lpfc_disc_set_adisc(vport, ndlp); 2658 2659 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2660 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2661 spin_lock_irq(&ndlp->lock); 2662 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2663 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2664 spin_unlock_irq(&ndlp->lock); 2665 return ndlp->nlp_state; 2666 } 2667 2668 static uint32_t 2669 lpfc_rcv_plogi_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 2674 /* Ignore PLOGI if we have an outstanding LOGO */ 2675 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2676 return ndlp->nlp_state; 2677 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2678 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2679 spin_lock_irq(&ndlp->lock); 2680 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2681 spin_unlock_irq(&ndlp->lock); 2682 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2683 /* send PLOGI immediately, move to PLOGI issue state */ 2684 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2685 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2686 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2687 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2688 } 2689 } 2690 return ndlp->nlp_state; 2691 } 2692 2693 static uint32_t 2694 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2695 void *arg, uint32_t evt) 2696 { 2697 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2698 struct ls_rjt stat; 2699 2700 memset(&stat, 0, sizeof (struct ls_rjt)); 2701 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2702 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2703 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2704 2705 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2706 /* 2707 * ADISC nodes will be handled in regular discovery path after 2708 * receiving response from NS. 2709 * 2710 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2711 */ 2712 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2713 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2714 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2715 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2716 } 2717 } 2718 return ndlp->nlp_state; 2719 } 2720 2721 static uint32_t 2722 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2723 void *arg, uint32_t evt) 2724 { 2725 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2726 2727 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2728 return ndlp->nlp_state; 2729 } 2730 2731 static uint32_t 2732 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2733 void *arg, uint32_t evt) 2734 { 2735 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2736 2737 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2738 /* 2739 * Do not start discovery if discovery is about to start 2740 * or discovery in progress for this node. Starting discovery 2741 * here will affect the counting of discovery threads. 2742 */ 2743 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2744 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2745 /* 2746 * ADISC nodes will be handled in regular discovery path after 2747 * receiving response from NS. 2748 * 2749 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2750 */ 2751 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2752 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2753 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2754 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2755 } 2756 } 2757 return ndlp->nlp_state; 2758 } 2759 2760 static uint32_t 2761 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2762 void *arg, uint32_t evt) 2763 { 2764 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2765 2766 spin_lock_irq(&ndlp->lock); 2767 ndlp->nlp_flag |= NLP_LOGO_ACC; 2768 spin_unlock_irq(&ndlp->lock); 2769 2770 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2771 2772 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2773 mod_timer(&ndlp->nlp_delayfunc, 2774 jiffies + msecs_to_jiffies(1000 * 1)); 2775 spin_lock_irq(&ndlp->lock); 2776 ndlp->nlp_flag |= NLP_DELAY_TMO; 2777 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2778 spin_unlock_irq(&ndlp->lock); 2779 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2780 } else { 2781 spin_lock_irq(&ndlp->lock); 2782 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2783 spin_unlock_irq(&ndlp->lock); 2784 } 2785 return ndlp->nlp_state; 2786 } 2787 2788 static uint32_t 2789 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2790 void *arg, uint32_t evt) 2791 { 2792 struct lpfc_hba *phba = vport->phba; 2793 struct lpfc_iocbq *cmdiocb, *rspiocb; 2794 u32 ulp_status; 2795 2796 cmdiocb = (struct lpfc_iocbq *) arg; 2797 rspiocb = cmdiocb->rsp_iocb; 2798 2799 ulp_status = get_job_ulpstatus(phba, rspiocb); 2800 2801 if (ulp_status) 2802 return NLP_STE_FREED_NODE; 2803 2804 return ndlp->nlp_state; 2805 } 2806 2807 static uint32_t 2808 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2809 void *arg, uint32_t evt) 2810 { 2811 struct lpfc_hba *phba = vport->phba; 2812 struct lpfc_iocbq *cmdiocb, *rspiocb; 2813 u32 ulp_status; 2814 2815 cmdiocb = (struct lpfc_iocbq *) arg; 2816 rspiocb = cmdiocb->rsp_iocb; 2817 2818 ulp_status = get_job_ulpstatus(phba, rspiocb); 2819 2820 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2821 lpfc_drop_node(vport, ndlp); 2822 return NLP_STE_FREED_NODE; 2823 } 2824 return ndlp->nlp_state; 2825 } 2826 2827 static uint32_t 2828 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2829 void *arg, uint32_t evt) 2830 { 2831 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2832 2833 /* For the fabric port just clear the fc flags. */ 2834 if (ndlp->nlp_DID == Fabric_DID) { 2835 spin_lock_irq(shost->host_lock); 2836 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2837 spin_unlock_irq(shost->host_lock); 2838 } 2839 lpfc_unreg_rpi(vport, ndlp); 2840 return ndlp->nlp_state; 2841 } 2842 2843 static uint32_t 2844 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2845 void *arg, uint32_t evt) 2846 { 2847 struct lpfc_hba *phba = vport->phba; 2848 struct lpfc_iocbq *cmdiocb, *rspiocb; 2849 u32 ulp_status; 2850 2851 cmdiocb = (struct lpfc_iocbq *) arg; 2852 rspiocb = cmdiocb->rsp_iocb; 2853 2854 ulp_status = get_job_ulpstatus(phba, rspiocb); 2855 2856 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2857 lpfc_drop_node(vport, ndlp); 2858 return NLP_STE_FREED_NODE; 2859 } 2860 return ndlp->nlp_state; 2861 } 2862 2863 static uint32_t 2864 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2865 struct lpfc_nodelist *ndlp, 2866 void *arg, uint32_t evt) 2867 { 2868 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2869 MAILBOX_t *mb = &pmb->u.mb; 2870 2871 if (!mb->mbxStatus) { 2872 /* SLI4 ports have preallocated logical rpis. */ 2873 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2874 ndlp->nlp_rpi = mb->un.varWords[0]; 2875 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2876 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 2877 lpfc_unreg_rpi(vport, ndlp); 2878 } 2879 } else { 2880 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2881 lpfc_drop_node(vport, ndlp); 2882 return NLP_STE_FREED_NODE; 2883 } 2884 } 2885 return ndlp->nlp_state; 2886 } 2887 2888 static uint32_t 2889 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2890 void *arg, uint32_t evt) 2891 { 2892 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2893 spin_lock_irq(&ndlp->lock); 2894 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2895 spin_unlock_irq(&ndlp->lock); 2896 return ndlp->nlp_state; 2897 } 2898 lpfc_drop_node(vport, ndlp); 2899 return NLP_STE_FREED_NODE; 2900 } 2901 2902 static uint32_t 2903 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2904 void *arg, uint32_t evt) 2905 { 2906 /* Don't do anything that will mess up processing of the 2907 * previous RSCN. 2908 */ 2909 if (vport->fc_flag & FC_RSCN_DEFERRED) 2910 return ndlp->nlp_state; 2911 2912 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2913 spin_lock_irq(&ndlp->lock); 2914 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2915 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2916 spin_unlock_irq(&ndlp->lock); 2917 return ndlp->nlp_state; 2918 } 2919 2920 2921 /* This next section defines the NPort Discovery State Machine */ 2922 2923 /* There are 4 different double linked lists nodelist entries can reside on. 2924 * The plogi list and adisc list are used when Link Up discovery or RSCN 2925 * processing is needed. Each list holds the nodes that we will send PLOGI 2926 * or ADISC on. These lists will keep track of what nodes will be effected 2927 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2928 * The unmapped_list will contain all nodes that we have successfully logged 2929 * into at the Fibre Channel level. The mapped_list will contain all nodes 2930 * that are mapped FCP targets. 2931 */ 2932 /* 2933 * The bind list is a list of undiscovered (potentially non-existent) nodes 2934 * that we have saved binding information on. This information is used when 2935 * nodes transition from the unmapped to the mapped list. 2936 */ 2937 /* For UNUSED_NODE state, the node has just been allocated . 2938 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2939 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2940 * and put on the unmapped list. For ADISC processing, the node is taken off 2941 * the ADISC list and placed on either the mapped or unmapped list (depending 2942 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2943 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2944 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2945 * node, the node is taken off the unmapped list. The binding list is checked 2946 * for a valid binding, or a binding is automatically assigned. If binding 2947 * assignment is unsuccessful, the node is left on the unmapped list. If 2948 * binding assignment is successful, the associated binding list entry (if 2949 * any) is removed, and the node is placed on the mapped list. 2950 */ 2951 /* 2952 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2953 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2954 * expire, all effected nodes will receive a DEVICE_RM event. 2955 */ 2956 /* 2957 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2958 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2959 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2960 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2961 * we will first process the ADISC list. 32 entries are processed initially and 2962 * ADISC is initited for each one. Completions / Events for each node are 2963 * funnelled thru the state machine. As each node finishes ADISC processing, it 2964 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2965 * waiting, and the ADISC list count is identically 0, then we are done. For 2966 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2967 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2968 * list. 32 entries are processed initially and PLOGI is initited for each one. 2969 * Completions / Events for each node are funnelled thru the state machine. As 2970 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2971 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2972 * indentically 0, then we are done. We have now completed discovery / RSCN 2973 * handling. Upon completion, ALL nodes should be on either the mapped or 2974 * unmapped lists. 2975 */ 2976 2977 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2978 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2979 /* Action routine Event Current State */ 2980 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2981 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2982 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2983 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2984 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2985 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2986 lpfc_disc_illegal, /* CMPL_PLOGI */ 2987 lpfc_disc_illegal, /* CMPL_PRLI */ 2988 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2989 lpfc_disc_illegal, /* CMPL_ADISC */ 2990 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2991 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2992 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2993 2994 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2995 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2996 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2997 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2998 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2999 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 3000 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 3001 lpfc_disc_illegal, /* CMPL_PRLI */ 3002 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 3003 lpfc_disc_illegal, /* CMPL_ADISC */ 3004 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 3005 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 3006 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 3007 3008 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 3009 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 3010 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 3011 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 3012 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 3013 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 3014 lpfc_disc_illegal, /* CMPL_PLOGI */ 3015 lpfc_disc_illegal, /* CMPL_PRLI */ 3016 lpfc_disc_illegal, /* CMPL_LOGO */ 3017 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 3018 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3019 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 3020 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 3021 3022 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 3023 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 3024 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 3025 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 3026 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 3027 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 3028 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3029 lpfc_disc_illegal, /* CMPL_PRLI */ 3030 lpfc_disc_illegal, /* CMPL_LOGO */ 3031 lpfc_disc_illegal, /* CMPL_ADISC */ 3032 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 3033 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 3034 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 3035 3036 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 3037 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 3038 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 3039 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 3040 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 3041 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 3042 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3043 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 3044 lpfc_disc_illegal, /* CMPL_LOGO */ 3045 lpfc_disc_illegal, /* CMPL_ADISC */ 3046 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3047 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 3048 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 3049 3050 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 3051 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 3052 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 3053 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 3054 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 3055 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 3056 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3057 lpfc_disc_illegal, /* CMPL_PRLI */ 3058 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 3059 lpfc_disc_illegal, /* CMPL_ADISC */ 3060 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3061 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 3062 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 3063 3064 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 3065 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 3066 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 3067 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 3068 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 3069 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 3070 lpfc_disc_illegal, /* CMPL_PLOGI */ 3071 lpfc_disc_illegal, /* CMPL_PRLI */ 3072 lpfc_disc_illegal, /* CMPL_LOGO */ 3073 lpfc_disc_illegal, /* CMPL_ADISC */ 3074 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3075 lpfc_device_rm_unmap_node, /* DEVICE_RM */ 3076 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 3077 3078 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 3079 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 3080 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 3081 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 3082 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 3083 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 3084 lpfc_disc_illegal, /* CMPL_PLOGI */ 3085 lpfc_disc_illegal, /* CMPL_PRLI */ 3086 lpfc_disc_illegal, /* CMPL_LOGO */ 3087 lpfc_disc_illegal, /* CMPL_ADISC */ 3088 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3089 lpfc_disc_illegal, /* DEVICE_RM */ 3090 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 3091 3092 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 3093 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 3094 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 3095 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 3096 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 3097 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 3098 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 3099 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 3100 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 3101 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 3102 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 3103 lpfc_device_rm_npr_node, /* DEVICE_RM */ 3104 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 3105 }; 3106 3107 int 3108 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3109 void *arg, uint32_t evt) 3110 { 3111 uint32_t cur_state, rc; 3112 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 3113 uint32_t); 3114 uint32_t got_ndlp = 0; 3115 uint32_t data1; 3116 3117 if (lpfc_nlp_get(ndlp)) 3118 got_ndlp = 1; 3119 3120 cur_state = ndlp->nlp_state; 3121 3122 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3123 ((uint32_t)ndlp->nlp_type)); 3124 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 3125 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3126 "0211 DSM in event x%x on NPort x%x in " 3127 "state %d rpi x%x Data: x%x x%x\n", 3128 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, 3129 ndlp->nlp_flag, data1); 3130 3131 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3132 "DSM in: evt:%d ste:%d did:x%x", 3133 evt, cur_state, ndlp->nlp_DID); 3134 3135 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 3136 rc = (func) (vport, ndlp, arg, evt); 3137 3138 /* DSM out state <rc> on NPort <nlp_DID> */ 3139 if (got_ndlp) { 3140 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3141 ((uint32_t)ndlp->nlp_type)); 3142 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3143 "0212 DSM out state %d on NPort x%x " 3144 "rpi x%x Data: x%x x%x\n", 3145 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag, 3146 data1); 3147 3148 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3149 "DSM out: ste:%d did:x%x flg:x%x", 3150 rc, ndlp->nlp_DID, ndlp->nlp_flag); 3151 /* Decrement the ndlp reference count held for this function */ 3152 lpfc_nlp_put(ndlp); 3153 } else { 3154 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3155 "0213 DSM out state %d on NPort free\n", rc); 3156 3157 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3158 "DSM out: ste:%d did:x%x flg:x%x", 3159 rc, 0, 0); 3160 } 3161 3162 return rc; 3163 } 3164