1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2022 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/pci.h> 26 #include <linux/slab.h> 27 #include <linux/interrupt.h> 28 29 #include <scsi/scsi.h> 30 #include <scsi/scsi_device.h> 31 #include <scsi/scsi_host.h> 32 #include <scsi/scsi_transport_fc.h> 33 #include <scsi/fc/fc_fs.h> 34 35 #include "lpfc_hw4.h" 36 #include "lpfc_hw.h" 37 #include "lpfc_sli.h" 38 #include "lpfc_sli4.h" 39 #include "lpfc_nl.h" 40 #include "lpfc_disc.h" 41 #include "lpfc.h" 42 #include "lpfc_scsi.h" 43 #include "lpfc_nvme.h" 44 #include "lpfc_logmsg.h" 45 #include "lpfc_crtn.h" 46 #include "lpfc_vport.h" 47 #include "lpfc_debugfs.h" 48 49 50 /* Called to verify a rcv'ed ADISC was intended for us. */ 51 static int 52 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 53 struct lpfc_name *nn, struct lpfc_name *pn) 54 { 55 /* First, we MUST have a RPI registered */ 56 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) 57 return 0; 58 59 /* Compare the ADISC rsp WWNN / WWPN matches our internal node 60 * table entry for that node. 61 */ 62 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) 63 return 0; 64 65 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) 66 return 0; 67 68 /* we match, return success */ 69 return 1; 70 } 71 72 int 73 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 74 struct serv_parm *sp, uint32_t class, int flogi) 75 { 76 volatile struct serv_parm *hsp = &vport->fc_sparam; 77 uint16_t hsp_value, ssp_value = 0; 78 79 /* 80 * The receive data field size and buffer-to-buffer receive data field 81 * size entries are 16 bits but are represented as two 8-bit fields in 82 * the driver data structure to account for rsvd bits and other control 83 * bits. Reconstruct and compare the fields as a 16-bit values before 84 * correcting the byte values. 85 */ 86 if (sp->cls1.classValid) { 87 if (!flogi) { 88 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) | 89 hsp->cls1.rcvDataSizeLsb); 90 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) | 91 sp->cls1.rcvDataSizeLsb); 92 if (!ssp_value) 93 goto bad_service_param; 94 if (ssp_value > hsp_value) { 95 sp->cls1.rcvDataSizeLsb = 96 hsp->cls1.rcvDataSizeLsb; 97 sp->cls1.rcvDataSizeMsb = 98 hsp->cls1.rcvDataSizeMsb; 99 } 100 } 101 } else if (class == CLASS1) 102 goto bad_service_param; 103 if (sp->cls2.classValid) { 104 if (!flogi) { 105 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) | 106 hsp->cls2.rcvDataSizeLsb); 107 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) | 108 sp->cls2.rcvDataSizeLsb); 109 if (!ssp_value) 110 goto bad_service_param; 111 if (ssp_value > hsp_value) { 112 sp->cls2.rcvDataSizeLsb = 113 hsp->cls2.rcvDataSizeLsb; 114 sp->cls2.rcvDataSizeMsb = 115 hsp->cls2.rcvDataSizeMsb; 116 } 117 } 118 } else if (class == CLASS2) 119 goto bad_service_param; 120 if (sp->cls3.classValid) { 121 if (!flogi) { 122 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) | 123 hsp->cls3.rcvDataSizeLsb); 124 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) | 125 sp->cls3.rcvDataSizeLsb); 126 if (!ssp_value) 127 goto bad_service_param; 128 if (ssp_value > hsp_value) { 129 sp->cls3.rcvDataSizeLsb = 130 hsp->cls3.rcvDataSizeLsb; 131 sp->cls3.rcvDataSizeMsb = 132 hsp->cls3.rcvDataSizeMsb; 133 } 134 } 135 } else if (class == CLASS3) 136 goto bad_service_param; 137 138 /* 139 * Preserve the upper four bits of the MSB from the PLOGI response. 140 * These bits contain the Buffer-to-Buffer State Change Number 141 * from the target and need to be passed to the FW. 142 */ 143 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; 144 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; 145 if (ssp_value > hsp_value) { 146 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; 147 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | 148 (hsp->cmn.bbRcvSizeMsb & 0x0F); 149 } 150 151 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); 152 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); 153 return 1; 154 bad_service_param: 155 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 156 "0207 Device %x " 157 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 158 "invalid service parameters. Ignoring device.\n", 159 ndlp->nlp_DID, 160 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 161 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 162 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 163 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 164 return 0; 165 } 166 167 static void * 168 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 169 struct lpfc_iocbq *rspiocb) 170 { 171 struct lpfc_dmabuf *pcmd, *prsp; 172 uint32_t *lp; 173 void *ptr = NULL; 174 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 175 176 pcmd = cmdiocb->cmd_dmabuf; 177 178 /* For lpfc_els_abort, cmd_dmabuf could be zero'ed to delay 179 * freeing associated memory till after ABTS completes. 180 */ 181 if (pcmd) { 182 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, 183 list); 184 if (prsp) { 185 lp = (uint32_t *) prsp->virt; 186 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); 187 } 188 } else { 189 /* Force ulp_status error since we are returning NULL ptr */ 190 if (!(ulp_status)) { 191 if (phba->sli_rev == LPFC_SLI_REV4) { 192 bf_set(lpfc_wcqe_c_status, &rspiocb->wcqe_cmpl, 193 IOSTAT_LOCAL_REJECT); 194 rspiocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED; 195 } else { 196 rspiocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; 197 rspiocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED; 198 } 199 } 200 ptr = NULL; 201 } 202 return ptr; 203 } 204 205 206 207 /* 208 * Free resources / clean up outstanding I/Os 209 * associated with a LPFC_NODELIST entry. This 210 * routine effectively results in a "software abort". 211 */ 212 void 213 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 214 { 215 LIST_HEAD(abort_list); 216 struct lpfc_sli_ring *pring; 217 struct lpfc_iocbq *iocb, *next_iocb; 218 219 pring = lpfc_phba_elsring(phba); 220 221 /* In case of error recovery path, we might have a NULL pring here */ 222 if (unlikely(!pring)) 223 return; 224 225 /* Abort outstanding I/O on NPort <nlp_DID> */ 226 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, 227 "2819 Abort outstanding I/O on NPort x%x " 228 "Data: x%x x%x x%x\n", 229 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 230 ndlp->nlp_rpi); 231 /* Clean up all fabric IOs first.*/ 232 lpfc_fabric_abort_nport(ndlp); 233 234 /* 235 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list 236 * of all ELS IOs that need an ABTS. The IOs need to stay on the 237 * txcmplq so that the abort operation completes them successfully. 238 */ 239 spin_lock_irq(&phba->hbalock); 240 if (phba->sli_rev == LPFC_SLI_REV4) 241 spin_lock(&pring->ring_lock); 242 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 243 /* Add to abort_list on on NDLP match. */ 244 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 245 list_add_tail(&iocb->dlist, &abort_list); 246 } 247 if (phba->sli_rev == LPFC_SLI_REV4) 248 spin_unlock(&pring->ring_lock); 249 spin_unlock_irq(&phba->hbalock); 250 251 /* Abort the targeted IOs and remove them from the abort list. */ 252 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) { 253 spin_lock_irq(&phba->hbalock); 254 list_del_init(&iocb->dlist); 255 lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL); 256 spin_unlock_irq(&phba->hbalock); 257 } 258 /* Make sure HBA is alive */ 259 lpfc_issue_hb_tmo(phba); 260 261 INIT_LIST_HEAD(&abort_list); 262 263 /* Now process the txq */ 264 spin_lock_irq(&phba->hbalock); 265 if (phba->sli_rev == LPFC_SLI_REV4) 266 spin_lock(&pring->ring_lock); 267 268 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 269 /* Check to see if iocb matches the nport we are looking for */ 270 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 271 list_del_init(&iocb->list); 272 list_add_tail(&iocb->list, &abort_list); 273 } 274 } 275 276 if (phba->sli_rev == LPFC_SLI_REV4) 277 spin_unlock(&pring->ring_lock); 278 spin_unlock_irq(&phba->hbalock); 279 280 /* Cancel all the IOCBs from the completions list */ 281 lpfc_sli_cancel_iocbs(phba, &abort_list, 282 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 283 284 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 285 } 286 287 /* lpfc_defer_plogi_acc - Issue PLOGI ACC after reg_login completes 288 * @phba: pointer to lpfc hba data structure. 289 * @login_mbox: pointer to REG_RPI mailbox object 290 * 291 * The ACC for a rcv'ed PLOGI is deferred until AFTER the REG_RPI completes 292 */ 293 static void 294 lpfc_defer_plogi_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *login_mbox) 295 { 296 struct lpfc_iocbq *save_iocb; 297 struct lpfc_nodelist *ndlp; 298 MAILBOX_t *mb = &login_mbox->u.mb; 299 300 int rc; 301 302 ndlp = login_mbox->ctx_ndlp; 303 save_iocb = login_mbox->context3; 304 305 if (mb->mbxStatus == MBX_SUCCESS) { 306 /* Now that REG_RPI completed successfully, 307 * we can now proceed with sending the PLOGI ACC. 308 */ 309 rc = lpfc_els_rsp_acc(login_mbox->vport, ELS_CMD_PLOGI, 310 save_iocb, ndlp, NULL); 311 if (rc) { 312 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 313 "4576 PLOGI ACC fails pt2pt discovery: " 314 "DID %x Data: %x\n", ndlp->nlp_DID, rc); 315 } 316 } 317 318 /* Now process the REG_RPI cmpl */ 319 lpfc_mbx_cmpl_reg_login(phba, login_mbox); 320 ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN; 321 kfree(save_iocb); 322 } 323 324 static int 325 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 326 struct lpfc_iocbq *cmdiocb) 327 { 328 struct lpfc_hba *phba = vport->phba; 329 struct lpfc_dmabuf *pcmd; 330 uint64_t nlp_portwwn = 0; 331 uint32_t *lp; 332 union lpfc_wqe128 *wqe; 333 IOCB_t *icmd; 334 struct serv_parm *sp; 335 uint32_t ed_tov; 336 LPFC_MBOXQ_t *link_mbox; 337 LPFC_MBOXQ_t *login_mbox; 338 struct lpfc_iocbq *save_iocb; 339 struct ls_rjt stat; 340 uint32_t vid, flag; 341 int rc; 342 u32 remote_did; 343 344 memset(&stat, 0, sizeof (struct ls_rjt)); 345 pcmd = cmdiocb->cmd_dmabuf; 346 lp = (uint32_t *) pcmd->virt; 347 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 348 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 349 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 350 "0140 PLOGI Reject: invalid pname\n"); 351 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 352 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 353 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 354 NULL); 355 return 0; 356 } 357 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 358 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 359 "0141 PLOGI Reject: invalid nname\n"); 360 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 361 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 362 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 363 NULL); 364 return 0; 365 } 366 367 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 368 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 369 /* Reject this request because invalid parameters */ 370 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 371 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 372 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 373 NULL); 374 return 0; 375 } 376 377 if (phba->sli_rev == LPFC_SLI_REV4) 378 wqe = &cmdiocb->wqe; 379 else 380 icmd = &cmdiocb->iocb; 381 382 /* PLOGI chkparm OK */ 383 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 384 "0114 PLOGI chkparm OK Data: x%x x%x x%x " 385 "x%x x%x x%x\n", 386 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 387 ndlp->nlp_rpi, vport->port_state, 388 vport->fc_flag); 389 390 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 391 ndlp->nlp_fcp_info |= CLASS2; 392 else 393 ndlp->nlp_fcp_info |= CLASS3; 394 395 ndlp->nlp_class_sup = 0; 396 if (sp->cls1.classValid) 397 ndlp->nlp_class_sup |= FC_COS_CLASS1; 398 if (sp->cls2.classValid) 399 ndlp->nlp_class_sup |= FC_COS_CLASS2; 400 if (sp->cls3.classValid) 401 ndlp->nlp_class_sup |= FC_COS_CLASS3; 402 if (sp->cls4.classValid) 403 ndlp->nlp_class_sup |= FC_COS_CLASS4; 404 ndlp->nlp_maxframe = 405 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 406 /* if already logged in, do implicit logout */ 407 switch (ndlp->nlp_state) { 408 case NLP_STE_NPR_NODE: 409 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 410 break; 411 fallthrough; 412 case NLP_STE_REG_LOGIN_ISSUE: 413 case NLP_STE_PRLI_ISSUE: 414 case NLP_STE_UNMAPPED_NODE: 415 case NLP_STE_MAPPED_NODE: 416 /* For initiators, lpfc_plogi_confirm_nport skips fabric did. 417 * For target mode, execute implicit logo. 418 * Fabric nodes go into NPR. 419 */ 420 if (!(ndlp->nlp_type & NLP_FABRIC) && 421 !(phba->nvmet_support)) { 422 /* Clear ndlp info, since follow up PRLI may have 423 * updated ndlp information 424 */ 425 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 426 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 427 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 428 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 429 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 430 431 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 432 ndlp, NULL); 433 return 1; 434 } 435 if (nlp_portwwn != 0 && 436 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 437 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 438 "0143 PLOGI recv'd from DID: x%x " 439 "WWPN changed: old %llx new %llx\n", 440 ndlp->nlp_DID, 441 (unsigned long long)nlp_portwwn, 442 (unsigned long long) 443 wwn_to_u64(sp->portName.u.wwn)); 444 445 /* Notify transport of connectivity loss to trigger cleanup. */ 446 if (phba->nvmet_support && 447 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 448 lpfc_nvmet_invalidate_host(phba, ndlp); 449 450 ndlp->nlp_prev_state = ndlp->nlp_state; 451 /* rport needs to be unregistered first */ 452 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 453 break; 454 } 455 456 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 457 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 458 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 459 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 460 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 461 462 login_mbox = NULL; 463 link_mbox = NULL; 464 save_iocb = NULL; 465 466 /* Check for Nport to NPort pt2pt protocol */ 467 if ((vport->fc_flag & FC_PT2PT) && 468 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 469 /* rcv'ed PLOGI decides what our NPortId will be */ 470 if (phba->sli_rev == LPFC_SLI_REV4) { 471 vport->fc_myDID = bf_get(els_rsp64_sid, 472 &cmdiocb->wqe.xmit_els_rsp); 473 } else { 474 vport->fc_myDID = icmd->un.rcvels.parmRo; 475 } 476 477 /* If there is an outstanding FLOGI, abort it now. 478 * The remote NPort is not going to ACC our FLOGI 479 * if its already issuing a PLOGI for pt2pt mode. 480 * This indicates our FLOGI was dropped; however, we 481 * must have ACCed the remote NPorts FLOGI to us 482 * to make it here. 483 */ 484 if (phba->hba_flag & HBA_FLOGI_OUTSTANDING) 485 lpfc_els_abort_flogi(phba); 486 487 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 488 if (sp->cmn.edtovResolution) { 489 /* E_D_TOV ticks are in nanoseconds */ 490 ed_tov = (phba->fc_edtov + 999999) / 1000000; 491 } 492 493 /* 494 * For pt-to-pt, use the larger EDTOV 495 * RATOV = 2 * EDTOV 496 */ 497 if (ed_tov > phba->fc_edtov) 498 phba->fc_edtov = ed_tov; 499 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 500 501 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 502 503 /* Issue CONFIG_LINK for SLI3 or REG_VFI for SLI4, 504 * to account for updated TOV's / parameters 505 */ 506 if (phba->sli_rev == LPFC_SLI_REV4) 507 lpfc_issue_reg_vfi(vport); 508 else { 509 link_mbox = mempool_alloc(phba->mbox_mem_pool, 510 GFP_KERNEL); 511 if (!link_mbox) 512 goto out; 513 lpfc_config_link(phba, link_mbox); 514 link_mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 515 link_mbox->vport = vport; 516 517 /* The default completion handling for CONFIG_LINK 518 * does not require the ndlp so no reference is needed. 519 */ 520 link_mbox->ctx_ndlp = ndlp; 521 522 rc = lpfc_sli_issue_mbox(phba, link_mbox, MBX_NOWAIT); 523 if (rc == MBX_NOT_FINISHED) { 524 mempool_free(link_mbox, phba->mbox_mem_pool); 525 goto out; 526 } 527 } 528 529 lpfc_can_disctmo(vport); 530 } 531 532 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 533 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 534 sp->cmn.valid_vendor_ver_level) { 535 vid = be32_to_cpu(sp->un.vv.vid); 536 flag = be32_to_cpu(sp->un.vv.flags); 537 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) 538 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 539 } 540 541 login_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 542 if (!login_mbox) 543 goto out; 544 545 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL); 546 if (!save_iocb) 547 goto out; 548 549 /* Save info from cmd IOCB to be used in rsp after all mbox completes */ 550 memcpy((uint8_t *)save_iocb, (uint8_t *)cmdiocb, 551 sizeof(struct lpfc_iocbq)); 552 553 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 554 if (phba->sli_rev == LPFC_SLI_REV4) 555 lpfc_unreg_rpi(vport, ndlp); 556 557 /* Issue REG_LOGIN first, before ACCing the PLOGI, thus we will 558 * always be deferring the ACC. 559 */ 560 if (phba->sli_rev == LPFC_SLI_REV4) 561 remote_did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest); 562 else 563 remote_did = icmd->un.rcvels.remoteID; 564 rc = lpfc_reg_rpi(phba, vport->vpi, remote_did, 565 (uint8_t *)sp, login_mbox, ndlp->nlp_rpi); 566 if (rc) 567 goto out; 568 569 login_mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 570 login_mbox->vport = vport; 571 572 /* 573 * If there is an outstanding PLOGI issued, abort it before 574 * sending ACC rsp for received PLOGI. If pending plogi 575 * is not canceled here, the plogi will be rejected by 576 * remote port and will be retried. On a configuration with 577 * single discovery thread, this will cause a huge delay in 578 * discovery. Also this will cause multiple state machines 579 * running in parallel for this node. 580 * This only applies to a fabric environment. 581 */ 582 if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) && 583 (vport->fc_flag & FC_FABRIC)) { 584 /* software abort outstanding PLOGI */ 585 lpfc_els_abort(phba, ndlp); 586 } 587 588 if ((vport->port_type == LPFC_NPIV_PORT && 589 vport->cfg_restrict_login)) { 590 591 /* no deferred ACC */ 592 kfree(save_iocb); 593 594 /* This is an NPIV SLI4 instance that does not need to register 595 * a default RPI. 596 */ 597 if (phba->sli_rev == LPFC_SLI_REV4) { 598 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 599 MBOX_THD_UNLOCKED); 600 login_mbox = NULL; 601 } else { 602 /* In order to preserve RPIs, we want to cleanup 603 * the default RPI the firmware created to rcv 604 * this ELS request. The only way to do this is 605 * to register, then unregister the RPI. 606 */ 607 spin_lock_irq(&ndlp->lock); 608 ndlp->nlp_flag |= (NLP_RM_DFLT_RPI | NLP_ACC_REGLOGIN | 609 NLP_RCV_PLOGI); 610 spin_unlock_irq(&ndlp->lock); 611 } 612 613 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 614 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 615 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 616 ndlp, login_mbox); 617 if (rc && login_mbox) 618 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 619 MBOX_THD_UNLOCKED); 620 return 1; 621 } 622 623 /* So the order here should be: 624 * SLI3 pt2pt 625 * Issue CONFIG_LINK mbox 626 * CONFIG_LINK cmpl 627 * SLI4 pt2pt 628 * Issue REG_VFI mbox 629 * REG_VFI cmpl 630 * SLI4 631 * Issue UNREG RPI mbx 632 * UNREG RPI cmpl 633 * Issue REG_RPI mbox 634 * REG RPI cmpl 635 * Issue PLOGI ACC 636 * PLOGI ACC cmpl 637 */ 638 login_mbox->mbox_cmpl = lpfc_defer_plogi_acc; 639 login_mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 640 if (!login_mbox->ctx_ndlp) 641 goto out; 642 643 login_mbox->context3 = save_iocb; /* For PLOGI ACC */ 644 645 spin_lock_irq(&ndlp->lock); 646 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 647 spin_unlock_irq(&ndlp->lock); 648 649 /* Start the ball rolling by issuing REG_LOGIN here */ 650 rc = lpfc_sli_issue_mbox(phba, login_mbox, MBX_NOWAIT); 651 if (rc == MBX_NOT_FINISHED) { 652 lpfc_nlp_put(ndlp); 653 goto out; 654 } 655 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); 656 657 return 1; 658 out: 659 kfree(save_iocb); 660 if (login_mbox) 661 mempool_free(login_mbox, phba->mbox_mem_pool); 662 663 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 664 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 665 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 666 return 0; 667 } 668 669 /** 670 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 671 * @phba: pointer to lpfc hba data structure. 672 * @mboxq: pointer to mailbox object 673 * 674 * This routine is invoked to issue a completion to a rcv'ed 675 * ADISC or PDISC after the paused RPI has been resumed. 676 **/ 677 static void 678 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 679 { 680 struct lpfc_vport *vport; 681 struct lpfc_iocbq *elsiocb; 682 struct lpfc_nodelist *ndlp; 683 uint32_t cmd; 684 685 elsiocb = (struct lpfc_iocbq *)mboxq->ctx_buf; 686 ndlp = (struct lpfc_nodelist *)mboxq->ctx_ndlp; 687 vport = mboxq->vport; 688 cmd = elsiocb->drvrTimeout; 689 690 if (cmd == ELS_CMD_ADISC) { 691 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 692 } else { 693 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 694 ndlp, NULL); 695 } 696 697 /* This nlp_put pairs with lpfc_sli4_resume_rpi */ 698 lpfc_nlp_put(ndlp); 699 700 kfree(elsiocb); 701 mempool_free(mboxq, phba->mbox_mem_pool); 702 } 703 704 static int 705 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 706 struct lpfc_iocbq *cmdiocb) 707 { 708 struct lpfc_hba *phba = vport->phba; 709 struct lpfc_iocbq *elsiocb; 710 struct lpfc_dmabuf *pcmd; 711 struct serv_parm *sp; 712 struct lpfc_name *pnn, *ppn; 713 struct ls_rjt stat; 714 ADISC *ap; 715 uint32_t *lp; 716 uint32_t cmd; 717 718 pcmd = cmdiocb->cmd_dmabuf; 719 lp = (uint32_t *) pcmd->virt; 720 721 cmd = *lp++; 722 if (cmd == ELS_CMD_ADISC) { 723 ap = (ADISC *) lp; 724 pnn = (struct lpfc_name *) & ap->nodeName; 725 ppn = (struct lpfc_name *) & ap->portName; 726 } else { 727 sp = (struct serv_parm *) lp; 728 pnn = (struct lpfc_name *) & sp->nodeName; 729 ppn = (struct lpfc_name *) & sp->portName; 730 } 731 732 if (get_job_ulpstatus(phba, cmdiocb) == 0 && 733 lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 734 735 /* 736 * As soon as we send ACC, the remote NPort can 737 * start sending us data. Thus, for SLI4 we must 738 * resume the RPI before the ACC goes out. 739 */ 740 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 741 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 742 GFP_KERNEL); 743 if (elsiocb) { 744 /* Save info from cmd IOCB used in rsp */ 745 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 746 sizeof(struct lpfc_iocbq)); 747 748 /* Save the ELS cmd */ 749 elsiocb->drvrTimeout = cmd; 750 751 lpfc_sli4_resume_rpi(ndlp, 752 lpfc_mbx_cmpl_resume_rpi, elsiocb); 753 goto out; 754 } 755 } 756 757 if (cmd == ELS_CMD_ADISC) { 758 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 759 } else { 760 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 761 ndlp, NULL); 762 } 763 out: 764 /* If we are authenticated, move to the proper state. 765 * It is possible an ADISC arrived and the remote nport 766 * is already in MAPPED or UNMAPPED state. Catch this 767 * condition and don't set the nlp_state again because 768 * it causes an unnecessary transport unregister/register. 769 * 770 * Nodes marked for ADISC will move MAPPED or UNMAPPED state 771 * after issuing ADISC 772 */ 773 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 774 if ((ndlp->nlp_state != NLP_STE_MAPPED_NODE) && 775 !(ndlp->nlp_flag & NLP_NPR_ADISC)) 776 lpfc_nlp_set_state(vport, ndlp, 777 NLP_STE_MAPPED_NODE); 778 } 779 780 return 1; 781 } 782 /* Reject this request because invalid parameters */ 783 stat.un.b.lsRjtRsvd0 = 0; 784 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 785 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 786 stat.un.b.vendorUnique = 0; 787 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 788 789 /* 1 sec timeout */ 790 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 791 792 spin_lock_irq(&ndlp->lock); 793 ndlp->nlp_flag |= NLP_DELAY_TMO; 794 spin_unlock_irq(&ndlp->lock); 795 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 796 ndlp->nlp_prev_state = ndlp->nlp_state; 797 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 798 return 0; 799 } 800 801 static int 802 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 803 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 804 { 805 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 806 struct lpfc_hba *phba = vport->phba; 807 struct lpfc_vport **vports; 808 int i, active_vlink_present = 0 ; 809 810 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 811 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 812 * PLOGIs during LOGO storms from a device. 813 */ 814 spin_lock_irq(&ndlp->lock); 815 ndlp->nlp_flag |= NLP_LOGO_ACC; 816 spin_unlock_irq(&ndlp->lock); 817 if (els_cmd == ELS_CMD_PRLO) 818 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 819 else 820 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 821 822 /* This clause allows the initiator to ACC the LOGO back to the 823 * Fabric Domain Controller. It does deliberately skip all other 824 * steps because some fabrics send RDP requests after logging out 825 * from the initiator. 826 */ 827 if (ndlp->nlp_type & NLP_FABRIC && 828 ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK)) 829 return 0; 830 831 /* Notify transport of connectivity loss to trigger cleanup. */ 832 if (phba->nvmet_support && 833 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 834 lpfc_nvmet_invalidate_host(phba, ndlp); 835 836 if (ndlp->nlp_DID == Fabric_DID) { 837 if (vport->port_state <= LPFC_FDISC || 838 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 if ((!(ndlp->nlp_type & NLP_FABRIC) && 883 ((ndlp->nlp_type & NLP_FCP_TARGET) || 884 (ndlp->nlp_type & NLP_NVME_TARGET) || 885 (vport->fc_flag & FC_PT2PT))) || 886 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { 887 /* Only try to re-login if this is NOT a Fabric Node 888 * AND the remote NPORT is a FCP/NVME Target or we 889 * are in pt2pt mode. NLP_STE_ADISC_ISSUE is a special 890 * case for LOGO as a response to ADISC behavior. 891 */ 892 mod_timer(&ndlp->nlp_delayfunc, 893 jiffies + msecs_to_jiffies(1000 * 1)); 894 spin_lock_irq(&ndlp->lock); 895 ndlp->nlp_flag |= NLP_DELAY_TMO; 896 spin_unlock_irq(&ndlp->lock); 897 898 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 899 } 900 out: 901 /* Unregister from backend, could have been skipped due to ADISC */ 902 lpfc_nlp_unreg_node(vport, ndlp); 903 904 ndlp->nlp_prev_state = ndlp->nlp_state; 905 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 906 907 spin_lock_irq(&ndlp->lock); 908 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 909 spin_unlock_irq(&ndlp->lock); 910 /* The driver has to wait until the ACC completes before it continues 911 * processing the LOGO. The action will resume in 912 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 913 * unreg_login, the driver waits so the ACC does not get aborted. 914 */ 915 return 0; 916 } 917 918 static uint32_t 919 lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 920 struct lpfc_nodelist *ndlp, 921 struct lpfc_iocbq *cmdiocb) 922 { 923 struct ls_rjt stat; 924 uint32_t *payload; 925 uint32_t cmd; 926 927 payload = cmdiocb->cmd_dmabuf->virt; 928 cmd = *payload; 929 if (vport->phba->nvmet_support) { 930 /* Must be a NVME PRLI */ 931 if (cmd == ELS_CMD_PRLI) 932 goto out; 933 } else { 934 /* Initiator mode. */ 935 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 936 goto out; 937 } 938 return 1; 939 out: 940 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC, 941 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 942 "state x%x flags x%x\n", 943 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 944 ndlp->nlp_flag); 945 memset(&stat, 0, sizeof(struct ls_rjt)); 946 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 947 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 948 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 949 ndlp, NULL); 950 return 0; 951 } 952 953 static void 954 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 955 struct lpfc_iocbq *cmdiocb) 956 { 957 struct lpfc_hba *phba = vport->phba; 958 struct lpfc_dmabuf *pcmd; 959 uint32_t *lp; 960 PRLI *npr; 961 struct fc_rport *rport = ndlp->rport; 962 u32 roles; 963 964 pcmd = cmdiocb->cmd_dmabuf; 965 lp = (uint32_t *)pcmd->virt; 966 npr = (PRLI *)((uint8_t *)lp + sizeof(uint32_t)); 967 968 if ((npr->prliType == PRLI_FCP_TYPE) || 969 (npr->prliType == PRLI_NVME_TYPE)) { 970 if (npr->initiatorFunc) { 971 if (npr->prliType == PRLI_FCP_TYPE) 972 ndlp->nlp_type |= NLP_FCP_INITIATOR; 973 if (npr->prliType == PRLI_NVME_TYPE) 974 ndlp->nlp_type |= NLP_NVME_INITIATOR; 975 } 976 if (npr->targetFunc) { 977 if (npr->prliType == PRLI_FCP_TYPE) 978 ndlp->nlp_type |= NLP_FCP_TARGET; 979 if (npr->prliType == PRLI_NVME_TYPE) 980 ndlp->nlp_type |= NLP_NVME_TARGET; 981 if (npr->writeXferRdyDis) 982 ndlp->nlp_flag |= NLP_FIRSTBURST; 983 } 984 if (npr->Retry && ndlp->nlp_type & 985 (NLP_FCP_INITIATOR | NLP_FCP_TARGET)) 986 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 987 988 if (npr->Retry && phba->nsler && 989 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET)) 990 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 991 992 993 /* If this driver is in nvme target mode, set the ndlp's fc4 994 * type to NVME provided the PRLI response claims NVME FC4 995 * type. Target mode does not issue gft_id so doesn't get 996 * the fc4 type set until now. 997 */ 998 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 999 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1000 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1001 } 1002 1003 /* Fabric Controllers send FCP PRLI as an initiator but should 1004 * not get recognized as FCP type and registered with transport. 1005 */ 1006 if (npr->prliType == PRLI_FCP_TYPE && 1007 !(ndlp->nlp_type & NLP_FABRIC)) 1008 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1009 } 1010 if (rport) { 1011 /* We need to update the rport role values */ 1012 roles = FC_RPORT_ROLE_UNKNOWN; 1013 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 1014 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 1015 if (ndlp->nlp_type & NLP_FCP_TARGET) 1016 roles |= FC_RPORT_ROLE_FCP_TARGET; 1017 1018 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 1019 "rport rolechg: role:x%x did:x%x flg:x%x", 1020 roles, ndlp->nlp_DID, ndlp->nlp_flag); 1021 1022 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1023 fc_remote_port_rolechg(rport, roles); 1024 } 1025 } 1026 1027 static uint32_t 1028 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 1029 { 1030 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 1031 spin_lock_irq(&ndlp->lock); 1032 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1033 spin_unlock_irq(&ndlp->lock); 1034 return 0; 1035 } 1036 1037 if (!(vport->fc_flag & FC_PT2PT)) { 1038 /* Check config parameter use-adisc or FCP-2 */ 1039 if (vport->cfg_use_adisc && ((vport->fc_flag & FC_RSCN_MODE) || 1040 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 1041 (ndlp->nlp_type & NLP_FCP_TARGET)))) { 1042 spin_lock_irq(&ndlp->lock); 1043 ndlp->nlp_flag |= NLP_NPR_ADISC; 1044 spin_unlock_irq(&ndlp->lock); 1045 return 1; 1046 } 1047 } 1048 1049 spin_lock_irq(&ndlp->lock); 1050 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1051 spin_unlock_irq(&ndlp->lock); 1052 lpfc_unreg_rpi(vport, ndlp); 1053 return 0; 1054 } 1055 1056 /** 1057 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 1058 * @phba : Pointer to lpfc_hba structure. 1059 * @vport: Pointer to lpfc_vport structure. 1060 * @ndlp: Pointer to lpfc_nodelist structure. 1061 * @rpi : rpi to be release. 1062 * 1063 * This function will send a unreg_login mailbox command to the firmware 1064 * to release a rpi. 1065 **/ 1066 static void 1067 lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, 1068 struct lpfc_nodelist *ndlp, uint16_t rpi) 1069 { 1070 LPFC_MBOXQ_t *pmb; 1071 int rc; 1072 1073 /* If there is already an UNREG in progress for this ndlp, 1074 * no need to queue up another one. 1075 */ 1076 if (ndlp->nlp_flag & NLP_UNREG_INP) { 1077 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1078 "1435 release_rpi SKIP UNREG x%x on " 1079 "NPort x%x deferred x%x flg x%x " 1080 "Data: x%px\n", 1081 ndlp->nlp_rpi, ndlp->nlp_DID, 1082 ndlp->nlp_defer_did, 1083 ndlp->nlp_flag, ndlp); 1084 return; 1085 } 1086 1087 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 1088 GFP_KERNEL); 1089 if (!pmb) 1090 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1091 "2796 mailbox memory allocation failed \n"); 1092 else { 1093 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 1094 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1095 pmb->vport = vport; 1096 pmb->ctx_ndlp = lpfc_nlp_get(ndlp); 1097 if (!pmb->ctx_ndlp) { 1098 mempool_free(pmb, phba->mbox_mem_pool); 1099 return; 1100 } 1101 1102 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 1103 (!(vport->fc_flag & FC_OFFLINE_MODE))) 1104 ndlp->nlp_flag |= NLP_UNREG_INP; 1105 1106 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1107 "1437 release_rpi UNREG x%x " 1108 "on NPort x%x flg x%x\n", 1109 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); 1110 1111 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 1112 if (rc == MBX_NOT_FINISHED) { 1113 lpfc_nlp_put(ndlp); 1114 mempool_free(pmb, phba->mbox_mem_pool); 1115 } 1116 } 1117 } 1118 1119 static uint32_t 1120 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1121 void *arg, uint32_t evt) 1122 { 1123 struct lpfc_hba *phba; 1124 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1125 uint16_t rpi; 1126 1127 phba = vport->phba; 1128 /* Release the RPI if reglogin completing */ 1129 if (!(phba->pport->load_flag & FC_UNLOADING) && 1130 (evt == NLP_EVT_CMPL_REG_LOGIN) && 1131 (!pmb->u.mb.mbxStatus)) { 1132 rpi = pmb->u.mb.un.varWords[0]; 1133 lpfc_release_rpi(phba, vport, ndlp, rpi); 1134 } 1135 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1136 "0271 Illegal State Transition: node x%x " 1137 "event x%x, state x%x Data: x%x x%x\n", 1138 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1139 ndlp->nlp_flag); 1140 return ndlp->nlp_state; 1141 } 1142 1143 static uint32_t 1144 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1145 void *arg, uint32_t evt) 1146 { 1147 /* This transition is only legal if we previously 1148 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 1149 * working on the same NPortID, do nothing for this thread 1150 * to stop it. 1151 */ 1152 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 1153 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1154 "0272 Illegal State Transition: node x%x " 1155 "event x%x, state x%x Data: x%x x%x\n", 1156 ndlp->nlp_DID, evt, ndlp->nlp_state, 1157 ndlp->nlp_rpi, ndlp->nlp_flag); 1158 } 1159 return ndlp->nlp_state; 1160 } 1161 1162 /* Start of Discovery State Machine routines */ 1163 1164 static uint32_t 1165 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1166 void *arg, uint32_t evt) 1167 { 1168 struct lpfc_iocbq *cmdiocb; 1169 1170 cmdiocb = (struct lpfc_iocbq *) arg; 1171 1172 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1173 return ndlp->nlp_state; 1174 } 1175 return NLP_STE_FREED_NODE; 1176 } 1177 1178 static uint32_t 1179 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1180 void *arg, uint32_t evt) 1181 { 1182 lpfc_issue_els_logo(vport, ndlp, 0); 1183 return ndlp->nlp_state; 1184 } 1185 1186 static uint32_t 1187 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1188 void *arg, uint32_t evt) 1189 { 1190 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1191 1192 spin_lock_irq(&ndlp->lock); 1193 ndlp->nlp_flag |= NLP_LOGO_ACC; 1194 spin_unlock_irq(&ndlp->lock); 1195 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1196 1197 return ndlp->nlp_state; 1198 } 1199 1200 static uint32_t 1201 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1202 void *arg, uint32_t evt) 1203 { 1204 return NLP_STE_FREED_NODE; 1205 } 1206 1207 static uint32_t 1208 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1209 void *arg, uint32_t evt) 1210 { 1211 return NLP_STE_FREED_NODE; 1212 } 1213 1214 static uint32_t 1215 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 1216 struct lpfc_nodelist *ndlp, 1217 void *arg, uint32_t evt) 1218 { 1219 return ndlp->nlp_state; 1220 } 1221 1222 static uint32_t 1223 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1224 void *arg, uint32_t evt) 1225 { 1226 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1227 struct lpfc_hba *phba = vport->phba; 1228 struct lpfc_iocbq *cmdiocb = arg; 1229 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 1230 uint32_t *lp = (uint32_t *) pcmd->virt; 1231 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1232 struct ls_rjt stat; 1233 int port_cmp; 1234 1235 memset(&stat, 0, sizeof (struct ls_rjt)); 1236 1237 /* For a PLOGI, we only accept if our portname is less 1238 * than the remote portname. 1239 */ 1240 phba->fc_stat.elsLogiCol++; 1241 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1242 sizeof(struct lpfc_name)); 1243 1244 if (port_cmp >= 0) { 1245 /* Reject this request because the remote node will accept 1246 ours */ 1247 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1248 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1249 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1250 NULL); 1251 } else { 1252 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1253 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 1254 (vport->num_disc_nodes)) { 1255 spin_lock_irq(&ndlp->lock); 1256 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1257 spin_unlock_irq(&ndlp->lock); 1258 /* Check if there are more PLOGIs to be sent */ 1259 lpfc_more_plogi(vport); 1260 if (vport->num_disc_nodes == 0) { 1261 spin_lock_irq(shost->host_lock); 1262 vport->fc_flag &= ~FC_NDISC_ACTIVE; 1263 spin_unlock_irq(shost->host_lock); 1264 lpfc_can_disctmo(vport); 1265 lpfc_end_rscn(vport); 1266 } 1267 } 1268 } /* If our portname was less */ 1269 1270 return ndlp->nlp_state; 1271 } 1272 1273 static uint32_t 1274 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1275 void *arg, uint32_t evt) 1276 { 1277 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1278 struct ls_rjt stat; 1279 1280 memset(&stat, 0, sizeof (struct ls_rjt)); 1281 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1282 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1283 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1284 return ndlp->nlp_state; 1285 } 1286 1287 static uint32_t 1288 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1289 void *arg, uint32_t evt) 1290 { 1291 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1292 1293 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1294 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1295 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1296 /* software abort outstanding PLOGI */ 1297 lpfc_els_abort(vport->phba, ndlp); 1298 1299 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1300 return ndlp->nlp_state; 1301 } 1302 1303 static uint32_t 1304 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1305 void *arg, uint32_t evt) 1306 { 1307 struct lpfc_hba *phba = vport->phba; 1308 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1309 1310 /* software abort outstanding PLOGI */ 1311 lpfc_els_abort(phba, ndlp); 1312 1313 if (evt == NLP_EVT_RCV_LOGO) { 1314 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1315 } else { 1316 lpfc_issue_els_logo(vport, ndlp, 0); 1317 } 1318 1319 /* Put ndlp in npr state set plogi timer for 1 sec */ 1320 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1321 spin_lock_irq(&ndlp->lock); 1322 ndlp->nlp_flag |= NLP_DELAY_TMO; 1323 spin_unlock_irq(&ndlp->lock); 1324 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1325 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1326 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1327 1328 return ndlp->nlp_state; 1329 } 1330 1331 static uint32_t 1332 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1333 struct lpfc_nodelist *ndlp, 1334 void *arg, 1335 uint32_t evt) 1336 { 1337 struct lpfc_hba *phba = vport->phba; 1338 struct lpfc_iocbq *cmdiocb, *rspiocb; 1339 struct lpfc_dmabuf *pcmd, *prsp; 1340 uint32_t *lp; 1341 uint32_t vid, flag; 1342 struct serv_parm *sp; 1343 uint32_t ed_tov; 1344 LPFC_MBOXQ_t *mbox; 1345 int rc; 1346 u32 ulp_status; 1347 u32 did; 1348 1349 cmdiocb = (struct lpfc_iocbq *) arg; 1350 rspiocb = cmdiocb->rsp_iocb; 1351 1352 ulp_status = get_job_ulpstatus(phba, rspiocb); 1353 1354 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1355 /* Recovery from PLOGI collision logic */ 1356 return ndlp->nlp_state; 1357 } 1358 1359 if (ulp_status) 1360 goto out; 1361 1362 pcmd = cmdiocb->cmd_dmabuf; 1363 1364 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1365 if (!prsp) 1366 goto out; 1367 1368 lp = (uint32_t *) prsp->virt; 1369 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1370 1371 /* Some switches have FDMI servers returning 0 for WWN */ 1372 if ((ndlp->nlp_DID != FDMI_DID) && 1373 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1374 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1375 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1376 "0142 PLOGI RSP: Invalid WWN.\n"); 1377 goto out; 1378 } 1379 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1380 goto out; 1381 /* PLOGI chkparm OK */ 1382 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1383 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1384 ndlp->nlp_DID, ndlp->nlp_state, 1385 ndlp->nlp_flag, ndlp->nlp_rpi); 1386 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1387 ndlp->nlp_fcp_info |= CLASS2; 1388 else 1389 ndlp->nlp_fcp_info |= CLASS3; 1390 1391 ndlp->nlp_class_sup = 0; 1392 if (sp->cls1.classValid) 1393 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1394 if (sp->cls2.classValid) 1395 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1396 if (sp->cls3.classValid) 1397 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1398 if (sp->cls4.classValid) 1399 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1400 ndlp->nlp_maxframe = 1401 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1402 1403 if ((vport->fc_flag & FC_PT2PT) && 1404 (vport->fc_flag & FC_PT2PT_PLOGI)) { 1405 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1406 if (sp->cmn.edtovResolution) { 1407 /* E_D_TOV ticks are in nanoseconds */ 1408 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1409 } 1410 1411 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 1412 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1413 sp->cmn.valid_vendor_ver_level) { 1414 vid = be32_to_cpu(sp->un.vv.vid); 1415 flag = be32_to_cpu(sp->un.vv.flags); 1416 if ((vid == LPFC_VV_EMLX_ID) && 1417 (flag & LPFC_VV_SUPPRESS_RSP)) 1418 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 1419 } 1420 1421 /* 1422 * Use the larger EDTOV 1423 * RATOV = 2 * EDTOV for pt-to-pt 1424 */ 1425 if (ed_tov > phba->fc_edtov) 1426 phba->fc_edtov = ed_tov; 1427 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1428 1429 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1430 1431 /* Issue config_link / reg_vfi to account for updated TOV's */ 1432 if (phba->sli_rev == LPFC_SLI_REV4) { 1433 lpfc_issue_reg_vfi(vport); 1434 } else { 1435 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1436 if (!mbox) { 1437 lpfc_printf_vlog(vport, KERN_ERR, 1438 LOG_TRACE_EVENT, 1439 "0133 PLOGI: no memory " 1440 "for config_link " 1441 "Data: x%x x%x x%x x%x\n", 1442 ndlp->nlp_DID, ndlp->nlp_state, 1443 ndlp->nlp_flag, ndlp->nlp_rpi); 1444 goto out; 1445 } 1446 1447 lpfc_config_link(phba, mbox); 1448 1449 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1450 mbox->vport = vport; 1451 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1452 if (rc == MBX_NOT_FINISHED) { 1453 mempool_free(mbox, phba->mbox_mem_pool); 1454 goto out; 1455 } 1456 } 1457 } 1458 1459 lpfc_unreg_rpi(vport, ndlp); 1460 1461 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1462 if (!mbox) { 1463 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1464 "0018 PLOGI: no memory for reg_login " 1465 "Data: x%x x%x x%x x%x\n", 1466 ndlp->nlp_DID, ndlp->nlp_state, 1467 ndlp->nlp_flag, ndlp->nlp_rpi); 1468 goto out; 1469 } 1470 1471 did = get_job_els_rsp64_did(phba, cmdiocb); 1472 1473 if (lpfc_reg_rpi(phba, vport->vpi, did, 1474 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1475 switch (ndlp->nlp_DID) { 1476 case NameServer_DID: 1477 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1478 /* Fabric Controller Node needs these parameters. */ 1479 memcpy(&ndlp->fc_sparam, sp, sizeof(struct serv_parm)); 1480 break; 1481 case FDMI_DID: 1482 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1483 break; 1484 default: 1485 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1486 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1487 } 1488 1489 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1490 if (!mbox->ctx_ndlp) 1491 goto out; 1492 1493 mbox->vport = vport; 1494 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1495 != MBX_NOT_FINISHED) { 1496 lpfc_nlp_set_state(vport, ndlp, 1497 NLP_STE_REG_LOGIN_ISSUE); 1498 return ndlp->nlp_state; 1499 } 1500 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1501 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1502 /* decrement node reference count to the failed mbox 1503 * command 1504 */ 1505 lpfc_nlp_put(ndlp); 1506 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 1507 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1508 "0134 PLOGI: cannot issue reg_login " 1509 "Data: x%x x%x x%x x%x\n", 1510 ndlp->nlp_DID, ndlp->nlp_state, 1511 ndlp->nlp_flag, ndlp->nlp_rpi); 1512 } else { 1513 mempool_free(mbox, phba->mbox_mem_pool); 1514 1515 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1516 "0135 PLOGI: cannot format reg_login " 1517 "Data: x%x x%x x%x x%x\n", 1518 ndlp->nlp_DID, ndlp->nlp_state, 1519 ndlp->nlp_flag, ndlp->nlp_rpi); 1520 } 1521 1522 1523 out: 1524 if (ndlp->nlp_DID == NameServer_DID) { 1525 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1526 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1527 "0261 Cannot Register NameServer login\n"); 1528 } 1529 1530 /* 1531 ** In case the node reference counter does not go to zero, ensure that 1532 ** the stale state for the node is not processed. 1533 */ 1534 1535 ndlp->nlp_prev_state = ndlp->nlp_state; 1536 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1537 return NLP_STE_FREED_NODE; 1538 } 1539 1540 static uint32_t 1541 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1542 void *arg, uint32_t evt) 1543 { 1544 return ndlp->nlp_state; 1545 } 1546 1547 static uint32_t 1548 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1549 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1550 { 1551 struct lpfc_hba *phba; 1552 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1553 MAILBOX_t *mb = &pmb->u.mb; 1554 uint16_t rpi; 1555 1556 phba = vport->phba; 1557 /* Release the RPI */ 1558 if (!(phba->pport->load_flag & FC_UNLOADING) && 1559 !mb->mbxStatus) { 1560 rpi = pmb->u.mb.un.varWords[0]; 1561 lpfc_release_rpi(phba, vport, ndlp, rpi); 1562 } 1563 return ndlp->nlp_state; 1564 } 1565 1566 static uint32_t 1567 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1568 void *arg, uint32_t evt) 1569 { 1570 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1571 spin_lock_irq(&ndlp->lock); 1572 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1573 spin_unlock_irq(&ndlp->lock); 1574 return ndlp->nlp_state; 1575 } else { 1576 /* software abort outstanding PLOGI */ 1577 lpfc_els_abort(vport->phba, ndlp); 1578 1579 lpfc_drop_node(vport, ndlp); 1580 return NLP_STE_FREED_NODE; 1581 } 1582 } 1583 1584 static uint32_t 1585 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1586 struct lpfc_nodelist *ndlp, 1587 void *arg, 1588 uint32_t evt) 1589 { 1590 struct lpfc_hba *phba = vport->phba; 1591 1592 /* Don't do anything that will mess up processing of the 1593 * previous RSCN. 1594 */ 1595 if (vport->fc_flag & FC_RSCN_DEFERRED) 1596 return ndlp->nlp_state; 1597 1598 /* software abort outstanding PLOGI */ 1599 lpfc_els_abort(phba, ndlp); 1600 1601 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1602 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1603 spin_lock_irq(&ndlp->lock); 1604 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1605 spin_unlock_irq(&ndlp->lock); 1606 1607 return ndlp->nlp_state; 1608 } 1609 1610 static uint32_t 1611 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1612 void *arg, uint32_t evt) 1613 { 1614 struct lpfc_hba *phba = vport->phba; 1615 struct lpfc_iocbq *cmdiocb; 1616 1617 /* software abort outstanding ADISC */ 1618 lpfc_els_abort(phba, ndlp); 1619 1620 cmdiocb = (struct lpfc_iocbq *) arg; 1621 1622 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1623 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1624 spin_lock_irq(&ndlp->lock); 1625 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1626 spin_unlock_irq(&ndlp->lock); 1627 if (vport->num_disc_nodes) 1628 lpfc_more_adisc(vport); 1629 } 1630 return ndlp->nlp_state; 1631 } 1632 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1633 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1634 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1635 1636 return ndlp->nlp_state; 1637 } 1638 1639 static uint32_t 1640 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1641 void *arg, uint32_t evt) 1642 { 1643 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1644 1645 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1646 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1647 return ndlp->nlp_state; 1648 } 1649 1650 static uint32_t 1651 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1652 void *arg, uint32_t evt) 1653 { 1654 struct lpfc_hba *phba = vport->phba; 1655 struct lpfc_iocbq *cmdiocb; 1656 1657 cmdiocb = (struct lpfc_iocbq *) arg; 1658 1659 /* software abort outstanding ADISC */ 1660 lpfc_els_abort(phba, ndlp); 1661 1662 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1663 return ndlp->nlp_state; 1664 } 1665 1666 static uint32_t 1667 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1668 struct lpfc_nodelist *ndlp, 1669 void *arg, uint32_t evt) 1670 { 1671 struct lpfc_iocbq *cmdiocb; 1672 1673 cmdiocb = (struct lpfc_iocbq *) arg; 1674 1675 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1676 return ndlp->nlp_state; 1677 } 1678 1679 static uint32_t 1680 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1681 void *arg, uint32_t evt) 1682 { 1683 struct lpfc_iocbq *cmdiocb; 1684 1685 cmdiocb = (struct lpfc_iocbq *) arg; 1686 1687 /* Treat like rcv logo */ 1688 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1689 return ndlp->nlp_state; 1690 } 1691 1692 static uint32_t 1693 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1694 struct lpfc_nodelist *ndlp, 1695 void *arg, uint32_t evt) 1696 { 1697 struct lpfc_hba *phba = vport->phba; 1698 struct lpfc_iocbq *cmdiocb, *rspiocb; 1699 ADISC *ap; 1700 int rc; 1701 u32 ulp_status; 1702 1703 cmdiocb = (struct lpfc_iocbq *) arg; 1704 rspiocb = cmdiocb->rsp_iocb; 1705 1706 ulp_status = get_job_ulpstatus(phba, rspiocb); 1707 1708 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1709 1710 if ((ulp_status) || 1711 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1712 /* 1 sec timeout */ 1713 mod_timer(&ndlp->nlp_delayfunc, 1714 jiffies + msecs_to_jiffies(1000)); 1715 spin_lock_irq(&ndlp->lock); 1716 ndlp->nlp_flag |= NLP_DELAY_TMO; 1717 spin_unlock_irq(&ndlp->lock); 1718 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1719 1720 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1721 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1722 lpfc_unreg_rpi(vport, ndlp); 1723 return ndlp->nlp_state; 1724 } 1725 1726 if (phba->sli_rev == LPFC_SLI_REV4) { 1727 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1728 if (rc) { 1729 /* Stay in state and retry. */ 1730 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1731 return ndlp->nlp_state; 1732 } 1733 } 1734 1735 if (ndlp->nlp_type & NLP_FCP_TARGET) 1736 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1737 1738 if (ndlp->nlp_type & NLP_NVME_TARGET) 1739 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1740 1741 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 1742 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1743 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1744 } else { 1745 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1746 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1747 } 1748 1749 return ndlp->nlp_state; 1750 } 1751 1752 static uint32_t 1753 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1754 void *arg, uint32_t evt) 1755 { 1756 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1757 spin_lock_irq(&ndlp->lock); 1758 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1759 spin_unlock_irq(&ndlp->lock); 1760 return ndlp->nlp_state; 1761 } else { 1762 /* software abort outstanding ADISC */ 1763 lpfc_els_abort(vport->phba, ndlp); 1764 1765 lpfc_drop_node(vport, ndlp); 1766 return NLP_STE_FREED_NODE; 1767 } 1768 } 1769 1770 static uint32_t 1771 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1772 struct lpfc_nodelist *ndlp, 1773 void *arg, 1774 uint32_t evt) 1775 { 1776 struct lpfc_hba *phba = vport->phba; 1777 1778 /* Don't do anything that will mess up processing of the 1779 * previous RSCN. 1780 */ 1781 if (vport->fc_flag & FC_RSCN_DEFERRED) 1782 return ndlp->nlp_state; 1783 1784 /* software abort outstanding ADISC */ 1785 lpfc_els_abort(phba, ndlp); 1786 1787 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1788 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1789 spin_lock_irq(&ndlp->lock); 1790 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1791 spin_unlock_irq(&ndlp->lock); 1792 lpfc_disc_set_adisc(vport, ndlp); 1793 return ndlp->nlp_state; 1794 } 1795 1796 static uint32_t 1797 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1798 struct lpfc_nodelist *ndlp, 1799 void *arg, 1800 uint32_t evt) 1801 { 1802 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1803 1804 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1805 return ndlp->nlp_state; 1806 } 1807 1808 static uint32_t 1809 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1810 struct lpfc_nodelist *ndlp, 1811 void *arg, 1812 uint32_t evt) 1813 { 1814 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1815 struct ls_rjt stat; 1816 1817 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1818 return ndlp->nlp_state; 1819 } 1820 if (vport->phba->nvmet_support) { 1821 /* NVME Target mode. Handle and respond to the PRLI and 1822 * transition to UNMAPPED provided the RPI has completed 1823 * registration. 1824 */ 1825 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 1826 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1827 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1828 } else { 1829 /* RPI registration has not completed. Reject the PRLI 1830 * to prevent an illegal state transition when the 1831 * rpi registration does complete. 1832 */ 1833 memset(&stat, 0, sizeof(struct ls_rjt)); 1834 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1835 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1836 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1837 ndlp, NULL); 1838 return ndlp->nlp_state; 1839 } 1840 } else { 1841 /* Initiator mode. */ 1842 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1843 } 1844 return ndlp->nlp_state; 1845 } 1846 1847 static uint32_t 1848 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1849 struct lpfc_nodelist *ndlp, 1850 void *arg, 1851 uint32_t evt) 1852 { 1853 struct lpfc_hba *phba = vport->phba; 1854 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1855 LPFC_MBOXQ_t *mb; 1856 LPFC_MBOXQ_t *nextmb; 1857 struct lpfc_nodelist *ns_ndlp; 1858 1859 cmdiocb = (struct lpfc_iocbq *) arg; 1860 1861 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1862 if ((mb = phba->sli.mbox_active)) { 1863 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1864 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1865 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1866 lpfc_nlp_put(ndlp); 1867 mb->ctx_ndlp = NULL; 1868 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1869 } 1870 } 1871 1872 spin_lock_irq(&phba->hbalock); 1873 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1874 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1875 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1876 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1877 lpfc_nlp_put(ndlp); 1878 list_del(&mb->list); 1879 phba->sli.mboxq_cnt--; 1880 lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_LOCKED); 1881 } 1882 } 1883 spin_unlock_irq(&phba->hbalock); 1884 1885 /* software abort if any GID_FT is outstanding */ 1886 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 1887 ns_ndlp = lpfc_findnode_did(vport, NameServer_DID); 1888 if (ns_ndlp) 1889 lpfc_els_abort(phba, ns_ndlp); 1890 } 1891 1892 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1893 return ndlp->nlp_state; 1894 } 1895 1896 static uint32_t 1897 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1898 struct lpfc_nodelist *ndlp, 1899 void *arg, 1900 uint32_t evt) 1901 { 1902 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1903 1904 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1905 return ndlp->nlp_state; 1906 } 1907 1908 static uint32_t 1909 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1910 struct lpfc_nodelist *ndlp, 1911 void *arg, 1912 uint32_t evt) 1913 { 1914 struct lpfc_iocbq *cmdiocb; 1915 1916 cmdiocb = (struct lpfc_iocbq *) arg; 1917 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1918 return ndlp->nlp_state; 1919 } 1920 1921 static uint32_t 1922 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1923 struct lpfc_nodelist *ndlp, 1924 void *arg, 1925 uint32_t evt) 1926 { 1927 struct lpfc_hba *phba = vport->phba; 1928 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1929 MAILBOX_t *mb = &pmb->u.mb; 1930 uint32_t did = mb->un.varWords[1]; 1931 1932 if (mb->mbxStatus) { 1933 /* RegLogin failed */ 1934 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1935 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1936 "x%x\n", 1937 did, mb->mbxStatus, vport->port_state, 1938 mb->un.varRegLogin.vpi, 1939 mb->un.varRegLogin.rpi); 1940 /* 1941 * If RegLogin failed due to lack of HBA resources do not 1942 * retry discovery. 1943 */ 1944 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1945 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1946 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1947 return ndlp->nlp_state; 1948 } 1949 1950 /* Put ndlp in npr state set plogi timer for 1 sec */ 1951 mod_timer(&ndlp->nlp_delayfunc, 1952 jiffies + msecs_to_jiffies(1000 * 1)); 1953 spin_lock_irq(&ndlp->lock); 1954 ndlp->nlp_flag |= NLP_DELAY_TMO; 1955 spin_unlock_irq(&ndlp->lock); 1956 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1957 1958 lpfc_issue_els_logo(vport, ndlp, 0); 1959 return ndlp->nlp_state; 1960 } 1961 1962 /* SLI4 ports have preallocated logical rpis. */ 1963 if (phba->sli_rev < LPFC_SLI_REV4) 1964 ndlp->nlp_rpi = mb->un.varWords[0]; 1965 1966 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1967 1968 /* Only if we are not a fabric nport do we issue PRLI */ 1969 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1970 "3066 RegLogin Complete on x%x x%x x%x\n", 1971 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 1972 if (!(ndlp->nlp_type & NLP_FABRIC) && 1973 (phba->nvmet_support == 0)) { 1974 /* The driver supports FCP and NVME concurrently. If the 1975 * ndlp's nlp_fc4_type is still zero, the driver doesn't 1976 * know what PRLI to send yet. Figure that out now and 1977 * call PRLI depending on the outcome. 1978 */ 1979 if (vport->fc_flag & FC_PT2PT) { 1980 /* If we are pt2pt, there is no Fabric to determine 1981 * the FC4 type of the remote nport. So if NVME 1982 * is configured try it. 1983 */ 1984 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1985 if ((!(vport->fc_flag & FC_PT2PT_NO_NVME)) && 1986 (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH || 1987 vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1988 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1989 /* We need to update the localport also */ 1990 lpfc_nvme_update_localport(vport); 1991 } 1992 1993 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 1994 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1995 1996 } else if (ndlp->nlp_fc4_type == 0) { 1997 /* If we are only configured for FCP, the driver 1998 * should just issue PRLI for FCP. Otherwise issue 1999 * GFT_ID to determine if remote port supports NVME. 2000 */ 2001 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 2002 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0, 2003 ndlp->nlp_DID); 2004 return ndlp->nlp_state; 2005 } 2006 ndlp->nlp_fc4_type = NLP_FC4_FCP; 2007 } 2008 2009 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2010 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 2011 if (lpfc_issue_els_prli(vport, ndlp, 0)) { 2012 lpfc_issue_els_logo(vport, ndlp, 0); 2013 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2014 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2015 } 2016 } else { 2017 if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support) 2018 phba->targetport->port_id = vport->fc_myDID; 2019 2020 /* Only Fabric ports should transition. NVME target 2021 * must complete PRLI. 2022 */ 2023 if (ndlp->nlp_type & NLP_FABRIC) { 2024 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2025 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2026 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2027 } 2028 } 2029 return ndlp->nlp_state; 2030 } 2031 2032 static uint32_t 2033 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 2034 struct lpfc_nodelist *ndlp, 2035 void *arg, 2036 uint32_t evt) 2037 { 2038 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2039 spin_lock_irq(&ndlp->lock); 2040 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2041 spin_unlock_irq(&ndlp->lock); 2042 return ndlp->nlp_state; 2043 } else { 2044 lpfc_drop_node(vport, ndlp); 2045 return NLP_STE_FREED_NODE; 2046 } 2047 } 2048 2049 static uint32_t 2050 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 2051 struct lpfc_nodelist *ndlp, 2052 void *arg, 2053 uint32_t evt) 2054 { 2055 /* Don't do anything that will mess up processing of the 2056 * previous RSCN. 2057 */ 2058 if (vport->fc_flag & FC_RSCN_DEFERRED) 2059 return ndlp->nlp_state; 2060 2061 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2062 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2063 spin_lock_irq(&ndlp->lock); 2064 2065 /* If we are a target we won't immediately transition into PRLI, 2066 * so if REG_LOGIN already completed we don't need to ignore it. 2067 */ 2068 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) || 2069 !vport->phba->nvmet_support) 2070 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 2071 2072 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2073 spin_unlock_irq(&ndlp->lock); 2074 lpfc_disc_set_adisc(vport, ndlp); 2075 return ndlp->nlp_state; 2076 } 2077 2078 static uint32_t 2079 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2080 void *arg, uint32_t evt) 2081 { 2082 struct lpfc_iocbq *cmdiocb; 2083 2084 cmdiocb = (struct lpfc_iocbq *) arg; 2085 2086 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2087 return ndlp->nlp_state; 2088 } 2089 2090 static uint32_t 2091 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2092 void *arg, uint32_t evt) 2093 { 2094 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2095 2096 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2097 return ndlp->nlp_state; 2098 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2099 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2100 return ndlp->nlp_state; 2101 } 2102 2103 static uint32_t 2104 lpfc_rcv_logo_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 /* Software abort outstanding PRLI before sending acc */ 2110 lpfc_els_abort(vport->phba, ndlp); 2111 2112 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2113 return ndlp->nlp_state; 2114 } 2115 2116 static uint32_t 2117 lpfc_rcv_padisc_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 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2123 return ndlp->nlp_state; 2124 } 2125 2126 /* This routine is envoked when we rcv a PRLO request from a nport 2127 * we are logged into. We should send back a PRLO rsp setting the 2128 * appropriate bits. 2129 * NEXT STATE = PRLI_ISSUE 2130 */ 2131 static uint32_t 2132 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2133 void *arg, uint32_t evt) 2134 { 2135 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2136 2137 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2138 return ndlp->nlp_state; 2139 } 2140 2141 static uint32_t 2142 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2143 void *arg, uint32_t evt) 2144 { 2145 struct lpfc_iocbq *cmdiocb, *rspiocb; 2146 struct lpfc_hba *phba = vport->phba; 2147 PRLI *npr; 2148 struct lpfc_nvme_prli *nvpr; 2149 void *temp_ptr; 2150 u32 ulp_status; 2151 2152 cmdiocb = (struct lpfc_iocbq *) arg; 2153 rspiocb = cmdiocb->rsp_iocb; 2154 2155 ulp_status = get_job_ulpstatus(phba, rspiocb); 2156 2157 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 2158 * format is different so NULL the two PRLI types so that the 2159 * driver correctly gets the correct context. 2160 */ 2161 npr = NULL; 2162 nvpr = NULL; 2163 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 2164 if (cmdiocb->cmd_flag & LPFC_PRLI_FCP_REQ) 2165 npr = (PRLI *) temp_ptr; 2166 else if (cmdiocb->cmd_flag & LPFC_PRLI_NVME_REQ) 2167 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 2168 2169 if (ulp_status) { 2170 if ((vport->port_type == LPFC_NPIV_PORT) && 2171 vport->cfg_restrict_login) { 2172 goto out; 2173 } 2174 2175 /* Adjust the nlp_type accordingly if the PRLI failed */ 2176 if (npr) 2177 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2178 if (nvpr) 2179 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 2180 2181 /* We can't set the DSM state till BOTH PRLIs complete */ 2182 goto out_err; 2183 } 2184 2185 if (npr && (npr->acceptRspCode == PRLI_REQ_EXECUTED) && 2186 (npr->prliType == PRLI_FCP_TYPE)) { 2187 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2188 "6028 FCP NPR PRLI Cmpl Init %d Target %d\n", 2189 npr->initiatorFunc, 2190 npr->targetFunc); 2191 if (npr->initiatorFunc) 2192 ndlp->nlp_type |= NLP_FCP_INITIATOR; 2193 if (npr->targetFunc) { 2194 ndlp->nlp_type |= NLP_FCP_TARGET; 2195 if (npr->writeXferRdyDis) 2196 ndlp->nlp_flag |= NLP_FIRSTBURST; 2197 } 2198 if (npr->Retry) 2199 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 2200 2201 } else if (nvpr && 2202 (bf_get_be32(prli_acc_rsp_code, nvpr) == 2203 PRLI_REQ_EXECUTED) && 2204 (bf_get_be32(prli_type_code, nvpr) == 2205 PRLI_NVME_TYPE)) { 2206 2207 /* Complete setting up the remote ndlp personality. */ 2208 if (bf_get_be32(prli_init, nvpr)) 2209 ndlp->nlp_type |= NLP_NVME_INITIATOR; 2210 2211 if (phba->nsler && bf_get_be32(prli_nsler, nvpr) && 2212 bf_get_be32(prli_conf, nvpr)) 2213 2214 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 2215 else 2216 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 2217 2218 /* Target driver cannot solicit NVME FB. */ 2219 if (bf_get_be32(prli_tgt, nvpr)) { 2220 /* Complete the nvme target roles. The transport 2221 * needs to know if the rport is capable of 2222 * discovery in addition to its role. 2223 */ 2224 ndlp->nlp_type |= NLP_NVME_TARGET; 2225 if (bf_get_be32(prli_disc, nvpr)) 2226 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 2227 2228 /* 2229 * If prli_fba is set, the Target supports FirstBurst. 2230 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 2231 * otherwise it defines the actual size supported by 2232 * the NVME Target. 2233 */ 2234 if ((bf_get_be32(prli_fba, nvpr) == 1) && 2235 (phba->cfg_nvme_enable_fb) && 2236 (!phba->nvmet_support)) { 2237 /* Both sides support FB. The target's first 2238 * burst size is a 512 byte encoded value. 2239 */ 2240 ndlp->nlp_flag |= NLP_FIRSTBURST; 2241 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2242 nvpr); 2243 2244 /* Expressed in units of 512 bytes */ 2245 if (ndlp->nvme_fb_size) 2246 ndlp->nvme_fb_size <<= 2247 LPFC_NVME_FB_SHIFT; 2248 else 2249 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2250 } 2251 } 2252 2253 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2254 "6029 NVME PRLI Cmpl w1 x%08x " 2255 "w4 x%08x w5 x%08x flag x%x, " 2256 "fcp_info x%x nlp_type x%x\n", 2257 be32_to_cpu(nvpr->word1), 2258 be32_to_cpu(nvpr->word4), 2259 be32_to_cpu(nvpr->word5), 2260 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2261 ndlp->nlp_type); 2262 } 2263 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2264 (vport->port_type == LPFC_NPIV_PORT) && 2265 vport->cfg_restrict_login) { 2266 out: 2267 spin_lock_irq(&ndlp->lock); 2268 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 2269 spin_unlock_irq(&ndlp->lock); 2270 lpfc_issue_els_logo(vport, ndlp, 0); 2271 2272 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2273 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2274 return ndlp->nlp_state; 2275 } 2276 2277 out_err: 2278 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2279 * are complete. 2280 */ 2281 if (ndlp->fc4_prli_sent == 0) { 2282 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2283 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2284 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2285 else if (ndlp->nlp_type & 2286 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2287 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2288 } else 2289 lpfc_printf_vlog(vport, 2290 KERN_INFO, LOG_ELS, 2291 "3067 PRLI's still outstanding " 2292 "on x%06x - count %d, Pend Node Mode " 2293 "transition...\n", 2294 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2295 2296 return ndlp->nlp_state; 2297 } 2298 2299 /*! lpfc_device_rm_prli_issue 2300 * 2301 * \pre 2302 * \post 2303 * \param phba 2304 * \param ndlp 2305 * \param arg 2306 * \param evt 2307 * \return uint32_t 2308 * 2309 * \b Description: 2310 * This routine is envoked when we a request to remove a nport we are in the 2311 * process of PRLIing. We should software abort outstanding prli, unreg 2312 * login, send a logout. We will change node state to UNUSED_NODE, put it 2313 * on plogi list so it can be freed when LOGO completes. 2314 * 2315 */ 2316 2317 static uint32_t 2318 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2319 void *arg, uint32_t evt) 2320 { 2321 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2322 spin_lock_irq(&ndlp->lock); 2323 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2324 spin_unlock_irq(&ndlp->lock); 2325 return ndlp->nlp_state; 2326 } else { 2327 /* software abort outstanding PLOGI */ 2328 lpfc_els_abort(vport->phba, ndlp); 2329 2330 lpfc_drop_node(vport, ndlp); 2331 return NLP_STE_FREED_NODE; 2332 } 2333 } 2334 2335 2336 /*! lpfc_device_recov_prli_issue 2337 * 2338 * \pre 2339 * \post 2340 * \param phba 2341 * \param ndlp 2342 * \param arg 2343 * \param evt 2344 * \return uint32_t 2345 * 2346 * \b Description: 2347 * The routine is envoked when the state of a device is unknown, like 2348 * during a link down. We should remove the nodelist entry from the 2349 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2350 * outstanding PRLI command, then free the node entry. 2351 */ 2352 static uint32_t 2353 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2354 struct lpfc_nodelist *ndlp, 2355 void *arg, 2356 uint32_t evt) 2357 { 2358 struct lpfc_hba *phba = vport->phba; 2359 2360 /* Don't do anything that will mess up processing of the 2361 * previous RSCN. 2362 */ 2363 if (vport->fc_flag & FC_RSCN_DEFERRED) 2364 return ndlp->nlp_state; 2365 2366 /* software abort outstanding PRLI */ 2367 lpfc_els_abort(phba, ndlp); 2368 2369 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2370 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2371 spin_lock_irq(&ndlp->lock); 2372 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2373 spin_unlock_irq(&ndlp->lock); 2374 lpfc_disc_set_adisc(vport, ndlp); 2375 return ndlp->nlp_state; 2376 } 2377 2378 static uint32_t 2379 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2380 void *arg, uint32_t evt) 2381 { 2382 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2383 struct ls_rjt stat; 2384 2385 memset(&stat, 0, sizeof(struct ls_rjt)); 2386 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2387 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2388 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2389 return ndlp->nlp_state; 2390 } 2391 2392 static uint32_t 2393 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2394 void *arg, uint32_t evt) 2395 { 2396 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2397 struct ls_rjt stat; 2398 2399 memset(&stat, 0, sizeof(struct ls_rjt)); 2400 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2401 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2402 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2403 return ndlp->nlp_state; 2404 } 2405 2406 static uint32_t 2407 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2408 void *arg, uint32_t evt) 2409 { 2410 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2411 2412 spin_lock_irq(&ndlp->lock); 2413 ndlp->nlp_flag |= NLP_LOGO_ACC; 2414 spin_unlock_irq(&ndlp->lock); 2415 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2416 return ndlp->nlp_state; 2417 } 2418 2419 static uint32_t 2420 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2421 void *arg, uint32_t evt) 2422 { 2423 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2424 struct ls_rjt stat; 2425 2426 memset(&stat, 0, sizeof(struct ls_rjt)); 2427 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2428 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2429 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2430 return ndlp->nlp_state; 2431 } 2432 2433 static uint32_t 2434 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2435 void *arg, uint32_t evt) 2436 { 2437 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2438 struct ls_rjt stat; 2439 2440 memset(&stat, 0, sizeof(struct ls_rjt)); 2441 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2442 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2443 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2444 return ndlp->nlp_state; 2445 } 2446 2447 static uint32_t 2448 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2449 void *arg, uint32_t evt) 2450 { 2451 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2452 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2453 spin_lock_irq(&ndlp->lock); 2454 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2455 spin_unlock_irq(&ndlp->lock); 2456 lpfc_disc_set_adisc(vport, ndlp); 2457 return ndlp->nlp_state; 2458 } 2459 2460 static uint32_t 2461 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2462 void *arg, uint32_t evt) 2463 { 2464 /* 2465 * DevLoss has timed out and is calling for Device Remove. 2466 * In this case, abort the LOGO and cleanup the ndlp 2467 */ 2468 2469 lpfc_unreg_rpi(vport, ndlp); 2470 /* software abort outstanding PLOGI */ 2471 lpfc_els_abort(vport->phba, ndlp); 2472 lpfc_drop_node(vport, ndlp); 2473 return NLP_STE_FREED_NODE; 2474 } 2475 2476 static uint32_t 2477 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2478 struct lpfc_nodelist *ndlp, 2479 void *arg, uint32_t evt) 2480 { 2481 /* 2482 * Device Recovery events have no meaning for a node with a LOGO 2483 * outstanding. The LOGO has to complete first and handle the 2484 * node from that point. 2485 */ 2486 return ndlp->nlp_state; 2487 } 2488 2489 static uint32_t 2490 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2491 void *arg, uint32_t evt) 2492 { 2493 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2494 2495 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2496 return ndlp->nlp_state; 2497 } 2498 2499 static uint32_t 2500 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2501 void *arg, uint32_t evt) 2502 { 2503 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2504 2505 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2506 return ndlp->nlp_state; 2507 2508 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2509 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2510 return ndlp->nlp_state; 2511 } 2512 2513 static uint32_t 2514 lpfc_rcv_logo_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_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2520 return ndlp->nlp_state; 2521 } 2522 2523 static uint32_t 2524 lpfc_rcv_padisc_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 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2530 return ndlp->nlp_state; 2531 } 2532 2533 static uint32_t 2534 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2535 void *arg, uint32_t evt) 2536 { 2537 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2538 2539 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2540 return ndlp->nlp_state; 2541 } 2542 2543 static uint32_t 2544 lpfc_device_rm_unmap_node(struct lpfc_vport *vport, 2545 struct lpfc_nodelist *ndlp, 2546 void *arg, 2547 uint32_t evt) 2548 { 2549 lpfc_drop_node(vport, ndlp); 2550 return NLP_STE_FREED_NODE; 2551 } 2552 2553 static uint32_t 2554 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2555 struct lpfc_nodelist *ndlp, 2556 void *arg, 2557 uint32_t evt) 2558 { 2559 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2560 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2561 spin_lock_irq(&ndlp->lock); 2562 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2563 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2564 spin_unlock_irq(&ndlp->lock); 2565 lpfc_disc_set_adisc(vport, ndlp); 2566 2567 return ndlp->nlp_state; 2568 } 2569 2570 static uint32_t 2571 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2572 void *arg, uint32_t evt) 2573 { 2574 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2575 2576 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2577 return ndlp->nlp_state; 2578 } 2579 2580 static uint32_t 2581 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2582 void *arg, uint32_t evt) 2583 { 2584 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2585 2586 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2587 return ndlp->nlp_state; 2588 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2589 return ndlp->nlp_state; 2590 } 2591 2592 static uint32_t 2593 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2594 void *arg, uint32_t evt) 2595 { 2596 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2597 2598 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2599 return ndlp->nlp_state; 2600 } 2601 2602 static uint32_t 2603 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2604 struct lpfc_nodelist *ndlp, 2605 void *arg, uint32_t evt) 2606 { 2607 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2608 2609 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2610 return ndlp->nlp_state; 2611 } 2612 2613 static uint32_t 2614 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2615 void *arg, uint32_t evt) 2616 { 2617 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2618 2619 /* flush the target */ 2620 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2621 2622 /* Treat like rcv logo */ 2623 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2624 return ndlp->nlp_state; 2625 } 2626 2627 static uint32_t 2628 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2629 struct lpfc_nodelist *ndlp, 2630 void *arg, 2631 uint32_t evt) 2632 { 2633 lpfc_disc_set_adisc(vport, ndlp); 2634 2635 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2636 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2637 spin_lock_irq(&ndlp->lock); 2638 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2639 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2640 spin_unlock_irq(&ndlp->lock); 2641 return ndlp->nlp_state; 2642 } 2643 2644 static uint32_t 2645 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2646 void *arg, uint32_t evt) 2647 { 2648 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2649 2650 /* Ignore PLOGI if we have an outstanding LOGO */ 2651 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2652 return ndlp->nlp_state; 2653 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2654 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2655 spin_lock_irq(&ndlp->lock); 2656 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2657 spin_unlock_irq(&ndlp->lock); 2658 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2659 /* send PLOGI immediately, move to PLOGI issue state */ 2660 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2661 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2662 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2663 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2664 } 2665 } 2666 return ndlp->nlp_state; 2667 } 2668 2669 static uint32_t 2670 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2671 void *arg, uint32_t evt) 2672 { 2673 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2674 struct ls_rjt stat; 2675 2676 memset(&stat, 0, sizeof (struct ls_rjt)); 2677 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2678 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2679 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2680 2681 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2682 /* 2683 * ADISC nodes will be handled in regular discovery path after 2684 * receiving response from NS. 2685 * 2686 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2687 */ 2688 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2689 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2690 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2691 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2692 } 2693 } 2694 return ndlp->nlp_state; 2695 } 2696 2697 static uint32_t 2698 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2699 void *arg, uint32_t evt) 2700 { 2701 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2702 2703 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2704 return ndlp->nlp_state; 2705 } 2706 2707 static uint32_t 2708 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2709 void *arg, uint32_t evt) 2710 { 2711 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2712 2713 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2714 /* 2715 * Do not start discovery if discovery is about to start 2716 * or discovery in progress for this node. Starting discovery 2717 * here will affect the counting of discovery threads. 2718 */ 2719 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2720 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2721 /* 2722 * ADISC nodes will be handled in regular discovery path after 2723 * receiving response from NS. 2724 * 2725 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2726 */ 2727 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2728 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2729 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2730 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2731 } 2732 } 2733 return ndlp->nlp_state; 2734 } 2735 2736 static uint32_t 2737 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2738 void *arg, uint32_t evt) 2739 { 2740 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2741 2742 spin_lock_irq(&ndlp->lock); 2743 ndlp->nlp_flag |= NLP_LOGO_ACC; 2744 spin_unlock_irq(&ndlp->lock); 2745 2746 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2747 2748 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2749 mod_timer(&ndlp->nlp_delayfunc, 2750 jiffies + msecs_to_jiffies(1000 * 1)); 2751 spin_lock_irq(&ndlp->lock); 2752 ndlp->nlp_flag |= NLP_DELAY_TMO; 2753 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2754 spin_unlock_irq(&ndlp->lock); 2755 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2756 } else { 2757 spin_lock_irq(&ndlp->lock); 2758 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2759 spin_unlock_irq(&ndlp->lock); 2760 } 2761 return ndlp->nlp_state; 2762 } 2763 2764 static uint32_t 2765 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2766 void *arg, uint32_t evt) 2767 { 2768 struct lpfc_hba *phba = vport->phba; 2769 struct lpfc_iocbq *cmdiocb, *rspiocb; 2770 u32 ulp_status; 2771 2772 cmdiocb = (struct lpfc_iocbq *) arg; 2773 rspiocb = cmdiocb->rsp_iocb; 2774 2775 ulp_status = get_job_ulpstatus(phba, rspiocb); 2776 2777 if (ulp_status) 2778 return NLP_STE_FREED_NODE; 2779 2780 return ndlp->nlp_state; 2781 } 2782 2783 static uint32_t 2784 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2785 void *arg, uint32_t evt) 2786 { 2787 struct lpfc_hba *phba = vport->phba; 2788 struct lpfc_iocbq *cmdiocb, *rspiocb; 2789 u32 ulp_status; 2790 2791 cmdiocb = (struct lpfc_iocbq *) arg; 2792 rspiocb = cmdiocb->rsp_iocb; 2793 2794 ulp_status = get_job_ulpstatus(phba, rspiocb); 2795 2796 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2797 lpfc_drop_node(vport, ndlp); 2798 return NLP_STE_FREED_NODE; 2799 } 2800 return ndlp->nlp_state; 2801 } 2802 2803 static uint32_t 2804 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2805 void *arg, uint32_t evt) 2806 { 2807 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2808 2809 /* For the fabric port just clear the fc flags. */ 2810 if (ndlp->nlp_DID == Fabric_DID) { 2811 spin_lock_irq(shost->host_lock); 2812 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2813 spin_unlock_irq(shost->host_lock); 2814 } 2815 lpfc_unreg_rpi(vport, ndlp); 2816 return ndlp->nlp_state; 2817 } 2818 2819 static uint32_t 2820 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2821 void *arg, uint32_t evt) 2822 { 2823 struct lpfc_hba *phba = vport->phba; 2824 struct lpfc_iocbq *cmdiocb, *rspiocb; 2825 u32 ulp_status; 2826 2827 cmdiocb = (struct lpfc_iocbq *) arg; 2828 rspiocb = cmdiocb->rsp_iocb; 2829 2830 ulp_status = get_job_ulpstatus(phba, rspiocb); 2831 2832 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2833 lpfc_drop_node(vport, ndlp); 2834 return NLP_STE_FREED_NODE; 2835 } 2836 return ndlp->nlp_state; 2837 } 2838 2839 static uint32_t 2840 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2841 struct lpfc_nodelist *ndlp, 2842 void *arg, uint32_t evt) 2843 { 2844 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2845 MAILBOX_t *mb = &pmb->u.mb; 2846 2847 if (!mb->mbxStatus) { 2848 /* SLI4 ports have preallocated logical rpis. */ 2849 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2850 ndlp->nlp_rpi = mb->un.varWords[0]; 2851 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2852 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 2853 lpfc_unreg_rpi(vport, ndlp); 2854 } 2855 } else { 2856 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2857 lpfc_drop_node(vport, ndlp); 2858 return NLP_STE_FREED_NODE; 2859 } 2860 } 2861 return ndlp->nlp_state; 2862 } 2863 2864 static uint32_t 2865 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2866 void *arg, uint32_t evt) 2867 { 2868 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2869 spin_lock_irq(&ndlp->lock); 2870 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2871 spin_unlock_irq(&ndlp->lock); 2872 return ndlp->nlp_state; 2873 } 2874 lpfc_drop_node(vport, ndlp); 2875 return NLP_STE_FREED_NODE; 2876 } 2877 2878 static uint32_t 2879 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2880 void *arg, uint32_t evt) 2881 { 2882 /* Don't do anything that will mess up processing of the 2883 * previous RSCN. 2884 */ 2885 if (vport->fc_flag & FC_RSCN_DEFERRED) 2886 return ndlp->nlp_state; 2887 2888 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2889 spin_lock_irq(&ndlp->lock); 2890 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2891 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2892 spin_unlock_irq(&ndlp->lock); 2893 return ndlp->nlp_state; 2894 } 2895 2896 2897 /* This next section defines the NPort Discovery State Machine */ 2898 2899 /* There are 4 different double linked lists nodelist entries can reside on. 2900 * The plogi list and adisc list are used when Link Up discovery or RSCN 2901 * processing is needed. Each list holds the nodes that we will send PLOGI 2902 * or ADISC on. These lists will keep track of what nodes will be effected 2903 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2904 * The unmapped_list will contain all nodes that we have successfully logged 2905 * into at the Fibre Channel level. The mapped_list will contain all nodes 2906 * that are mapped FCP targets. 2907 */ 2908 /* 2909 * The bind list is a list of undiscovered (potentially non-existent) nodes 2910 * that we have saved binding information on. This information is used when 2911 * nodes transition from the unmapped to the mapped list. 2912 */ 2913 /* For UNUSED_NODE state, the node has just been allocated . 2914 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2915 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2916 * and put on the unmapped list. For ADISC processing, the node is taken off 2917 * the ADISC list and placed on either the mapped or unmapped list (depending 2918 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2919 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2920 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2921 * node, the node is taken off the unmapped list. The binding list is checked 2922 * for a valid binding, or a binding is automatically assigned. If binding 2923 * assignment is unsuccessful, the node is left on the unmapped list. If 2924 * binding assignment is successful, the associated binding list entry (if 2925 * any) is removed, and the node is placed on the mapped list. 2926 */ 2927 /* 2928 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2929 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2930 * expire, all effected nodes will receive a DEVICE_RM event. 2931 */ 2932 /* 2933 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2934 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2935 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2936 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2937 * we will first process the ADISC list. 32 entries are processed initially and 2938 * ADISC is initited for each one. Completions / Events for each node are 2939 * funnelled thru the state machine. As each node finishes ADISC processing, it 2940 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2941 * waiting, and the ADISC list count is identically 0, then we are done. For 2942 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2943 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2944 * list. 32 entries are processed initially and PLOGI is initited for each one. 2945 * Completions / Events for each node are funnelled thru the state machine. As 2946 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2947 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2948 * indentically 0, then we are done. We have now completed discovery / RSCN 2949 * handling. Upon completion, ALL nodes should be on either the mapped or 2950 * unmapped lists. 2951 */ 2952 2953 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2954 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2955 /* Action routine Event Current State */ 2956 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2957 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2958 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2959 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2960 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2961 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2962 lpfc_disc_illegal, /* CMPL_PLOGI */ 2963 lpfc_disc_illegal, /* CMPL_PRLI */ 2964 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2965 lpfc_disc_illegal, /* CMPL_ADISC */ 2966 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2967 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2968 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2969 2970 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2971 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2972 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2973 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2974 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2975 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2976 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2977 lpfc_disc_illegal, /* CMPL_PRLI */ 2978 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2979 lpfc_disc_illegal, /* CMPL_ADISC */ 2980 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2981 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2982 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2983 2984 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2985 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 2986 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 2987 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 2988 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 2989 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 2990 lpfc_disc_illegal, /* CMPL_PLOGI */ 2991 lpfc_disc_illegal, /* CMPL_PRLI */ 2992 lpfc_disc_illegal, /* CMPL_LOGO */ 2993 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 2994 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2995 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 2996 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 2997 2998 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 2999 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 3000 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 3001 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 3002 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 3003 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 3004 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3005 lpfc_disc_illegal, /* CMPL_PRLI */ 3006 lpfc_disc_illegal, /* CMPL_LOGO */ 3007 lpfc_disc_illegal, /* CMPL_ADISC */ 3008 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 3009 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 3010 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 3011 3012 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 3013 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 3014 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 3015 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 3016 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 3017 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 3018 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3019 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 3020 lpfc_disc_illegal, /* CMPL_LOGO */ 3021 lpfc_disc_illegal, /* CMPL_ADISC */ 3022 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3023 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 3024 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 3025 3026 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 3027 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 3028 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 3029 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 3030 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 3031 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 3032 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3033 lpfc_disc_illegal, /* CMPL_PRLI */ 3034 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 3035 lpfc_disc_illegal, /* CMPL_ADISC */ 3036 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3037 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 3038 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 3039 3040 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 3041 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 3042 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 3043 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 3044 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 3045 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 3046 lpfc_disc_illegal, /* CMPL_PLOGI */ 3047 lpfc_disc_illegal, /* CMPL_PRLI */ 3048 lpfc_disc_illegal, /* CMPL_LOGO */ 3049 lpfc_disc_illegal, /* CMPL_ADISC */ 3050 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3051 lpfc_device_rm_unmap_node, /* DEVICE_RM */ 3052 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 3053 3054 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 3055 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 3056 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 3057 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 3058 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 3059 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 3060 lpfc_disc_illegal, /* CMPL_PLOGI */ 3061 lpfc_disc_illegal, /* CMPL_PRLI */ 3062 lpfc_disc_illegal, /* CMPL_LOGO */ 3063 lpfc_disc_illegal, /* CMPL_ADISC */ 3064 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3065 lpfc_disc_illegal, /* DEVICE_RM */ 3066 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 3067 3068 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 3069 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 3070 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 3071 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 3072 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 3073 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 3074 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 3075 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 3076 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 3077 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 3078 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 3079 lpfc_device_rm_npr_node, /* DEVICE_RM */ 3080 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 3081 }; 3082 3083 int 3084 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3085 void *arg, uint32_t evt) 3086 { 3087 uint32_t cur_state, rc; 3088 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 3089 uint32_t); 3090 uint32_t got_ndlp = 0; 3091 uint32_t data1; 3092 3093 if (lpfc_nlp_get(ndlp)) 3094 got_ndlp = 1; 3095 3096 cur_state = ndlp->nlp_state; 3097 3098 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3099 ((uint32_t)ndlp->nlp_type)); 3100 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 3101 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3102 "0211 DSM in event x%x on NPort x%x in " 3103 "state %d rpi x%x Data: x%x x%x\n", 3104 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, 3105 ndlp->nlp_flag, data1); 3106 3107 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3108 "DSM in: evt:%d ste:%d did:x%x", 3109 evt, cur_state, ndlp->nlp_DID); 3110 3111 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 3112 rc = (func) (vport, ndlp, arg, evt); 3113 3114 /* DSM out state <rc> on NPort <nlp_DID> */ 3115 if (got_ndlp) { 3116 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3117 ((uint32_t)ndlp->nlp_type)); 3118 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3119 "0212 DSM out state %d on NPort x%x " 3120 "rpi x%x Data: x%x x%x\n", 3121 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag, 3122 data1); 3123 3124 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3125 "DSM out: ste:%d did:x%x flg:x%x", 3126 rc, ndlp->nlp_DID, ndlp->nlp_flag); 3127 /* Decrement the ndlp reference count held for this function */ 3128 lpfc_nlp_put(ndlp); 3129 } else { 3130 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3131 "0213 DSM out state %d on NPort free\n", rc); 3132 3133 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3134 "DSM out: ste:%d did:x%x flg:x%x", 3135 rc, 0, 0); 3136 } 3137 3138 return rc; 3139 } 3140