1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2024 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/pci.h> 26 #include <linux/slab.h> 27 #include <linux/interrupt.h> 28 29 #include <scsi/scsi.h> 30 #include <scsi/scsi_device.h> 31 #include <scsi/scsi_host.h> 32 #include <scsi/scsi_transport_fc.h> 33 #include <scsi/fc/fc_fs.h> 34 35 #include "lpfc_hw4.h" 36 #include "lpfc_hw.h" 37 #include "lpfc_sli.h" 38 #include "lpfc_sli4.h" 39 #include "lpfc_nl.h" 40 #include "lpfc_disc.h" 41 #include "lpfc.h" 42 #include "lpfc_scsi.h" 43 #include "lpfc_nvme.h" 44 #include "lpfc_logmsg.h" 45 #include "lpfc_crtn.h" 46 #include "lpfc_vport.h" 47 #include "lpfc_debugfs.h" 48 49 50 /* Called to clear RSCN discovery flags when driver is unloading. */ 51 static bool 52 lpfc_check_unload_and_clr_rscn(unsigned long *fc_flag) 53 { 54 /* If unloading, then clear the FC_RSCN_DEFERRED flag */ 55 if (test_bit(FC_UNLOADING, fc_flag)) { 56 clear_bit(FC_RSCN_DEFERRED, fc_flag); 57 return false; 58 } 59 return test_bit(FC_RSCN_DEFERRED, fc_flag); 60 } 61 62 /* Called to verify a rcv'ed ADISC was intended for us. */ 63 static int 64 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 65 struct lpfc_name *nn, struct lpfc_name *pn) 66 { 67 /* First, we MUST have a RPI registered */ 68 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) 69 return 0; 70 71 /* Compare the ADISC rsp WWNN / WWPN matches our internal node 72 * table entry for that node. 73 */ 74 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) 75 return 0; 76 77 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) 78 return 0; 79 80 /* we match, return success */ 81 return 1; 82 } 83 84 int 85 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 86 struct serv_parm *sp, uint32_t class, int flogi) 87 { 88 volatile struct serv_parm *hsp = &vport->fc_sparam; 89 uint16_t hsp_value, ssp_value = 0; 90 91 /* 92 * The receive data field size and buffer-to-buffer receive data field 93 * size entries are 16 bits but are represented as two 8-bit fields in 94 * the driver data structure to account for rsvd bits and other control 95 * bits. Reconstruct and compare the fields as a 16-bit values before 96 * correcting the byte values. 97 */ 98 if (sp->cls1.classValid) { 99 if (!flogi) { 100 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) | 101 hsp->cls1.rcvDataSizeLsb); 102 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) | 103 sp->cls1.rcvDataSizeLsb); 104 if (!ssp_value) 105 goto bad_service_param; 106 if (ssp_value > hsp_value) { 107 sp->cls1.rcvDataSizeLsb = 108 hsp->cls1.rcvDataSizeLsb; 109 sp->cls1.rcvDataSizeMsb = 110 hsp->cls1.rcvDataSizeMsb; 111 } 112 } 113 } else if (class == CLASS1) 114 goto bad_service_param; 115 if (sp->cls2.classValid) { 116 if (!flogi) { 117 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) | 118 hsp->cls2.rcvDataSizeLsb); 119 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) | 120 sp->cls2.rcvDataSizeLsb); 121 if (!ssp_value) 122 goto bad_service_param; 123 if (ssp_value > hsp_value) { 124 sp->cls2.rcvDataSizeLsb = 125 hsp->cls2.rcvDataSizeLsb; 126 sp->cls2.rcvDataSizeMsb = 127 hsp->cls2.rcvDataSizeMsb; 128 } 129 } 130 } else if (class == CLASS2) 131 goto bad_service_param; 132 if (sp->cls3.classValid) { 133 if (!flogi) { 134 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) | 135 hsp->cls3.rcvDataSizeLsb); 136 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) | 137 sp->cls3.rcvDataSizeLsb); 138 if (!ssp_value) 139 goto bad_service_param; 140 if (ssp_value > hsp_value) { 141 sp->cls3.rcvDataSizeLsb = 142 hsp->cls3.rcvDataSizeLsb; 143 sp->cls3.rcvDataSizeMsb = 144 hsp->cls3.rcvDataSizeMsb; 145 } 146 } 147 } else if (class == CLASS3) 148 goto bad_service_param; 149 150 /* 151 * Preserve the upper four bits of the MSB from the PLOGI response. 152 * These bits contain the Buffer-to-Buffer State Change Number 153 * from the target and need to be passed to the FW. 154 */ 155 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; 156 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; 157 if (ssp_value > hsp_value) { 158 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; 159 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | 160 (hsp->cmn.bbRcvSizeMsb & 0x0F); 161 } 162 163 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); 164 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); 165 return 1; 166 bad_service_param: 167 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 168 "0207 Device %x " 169 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 170 "invalid service parameters. Ignoring device.\n", 171 ndlp->nlp_DID, 172 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 173 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 174 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 175 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 176 return 0; 177 } 178 179 static void * 180 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 181 struct lpfc_iocbq *rspiocb) 182 { 183 struct lpfc_dmabuf *pcmd, *prsp; 184 uint32_t *lp; 185 void *ptr = NULL; 186 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 187 188 pcmd = cmdiocb->cmd_dmabuf; 189 190 /* For lpfc_els_abort, cmd_dmabuf could be zero'ed to delay 191 * freeing associated memory till after ABTS completes. 192 */ 193 if (pcmd) { 194 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, 195 list); 196 if (prsp) { 197 lp = (uint32_t *) prsp->virt; 198 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); 199 } 200 } else { 201 /* Force ulp_status error since we are returning NULL ptr */ 202 if (!(ulp_status)) { 203 if (phba->sli_rev == LPFC_SLI_REV4) { 204 bf_set(lpfc_wcqe_c_status, &rspiocb->wcqe_cmpl, 205 IOSTAT_LOCAL_REJECT); 206 rspiocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED; 207 } else { 208 rspiocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; 209 rspiocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED; 210 } 211 } 212 ptr = NULL; 213 } 214 return ptr; 215 } 216 217 218 219 /* 220 * Free resources / clean up outstanding I/Os 221 * associated with a LPFC_NODELIST entry. This 222 * routine effectively results in a "software abort". 223 */ 224 void 225 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 226 { 227 LIST_HEAD(abort_list); 228 LIST_HEAD(drv_cmpl_list); 229 struct lpfc_sli_ring *pring; 230 struct lpfc_iocbq *iocb, *next_iocb; 231 int retval = 0; 232 233 pring = lpfc_phba_elsring(phba); 234 235 /* In case of error recovery path, we might have a NULL pring here */ 236 if (unlikely(!pring)) 237 return; 238 239 /* Abort outstanding I/O on NPort <nlp_DID> */ 240 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, 241 "2819 Abort outstanding I/O on NPort x%x " 242 "Data: x%x x%x x%x\n", 243 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 244 ndlp->nlp_rpi); 245 /* Clean up all fabric IOs first.*/ 246 lpfc_fabric_abort_nport(ndlp); 247 248 /* 249 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list 250 * of all ELS IOs that need an ABTS. The IOs need to stay on the 251 * txcmplq so that the abort operation completes them successfully. 252 */ 253 spin_lock_irq(&phba->hbalock); 254 if (phba->sli_rev == LPFC_SLI_REV4) 255 spin_lock(&pring->ring_lock); 256 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 257 /* Add to abort_list on on NDLP match. */ 258 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 259 list_add_tail(&iocb->dlist, &abort_list); 260 } 261 if (phba->sli_rev == LPFC_SLI_REV4) 262 spin_unlock(&pring->ring_lock); 263 spin_unlock_irq(&phba->hbalock); 264 265 /* Abort the targeted IOs and remove them from the abort list. */ 266 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) { 267 spin_lock_irq(&phba->hbalock); 268 list_del_init(&iocb->dlist); 269 retval = lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL); 270 spin_unlock_irq(&phba->hbalock); 271 272 if (retval && test_bit(FC_UNLOADING, &phba->pport->load_flag)) { 273 list_del_init(&iocb->list); 274 list_add_tail(&iocb->list, &drv_cmpl_list); 275 } 276 } 277 278 lpfc_sli_cancel_iocbs(phba, &drv_cmpl_list, IOSTAT_LOCAL_REJECT, 279 IOERR_SLI_ABORTED); 280 281 /* Make sure HBA is alive */ 282 lpfc_issue_hb_tmo(phba); 283 284 INIT_LIST_HEAD(&abort_list); 285 286 /* Now process the txq */ 287 spin_lock_irq(&phba->hbalock); 288 if (phba->sli_rev == LPFC_SLI_REV4) 289 spin_lock(&pring->ring_lock); 290 291 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 292 /* Check to see if iocb matches the nport we are looking for */ 293 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 294 list_del_init(&iocb->list); 295 list_add_tail(&iocb->list, &abort_list); 296 } 297 } 298 299 if (phba->sli_rev == LPFC_SLI_REV4) 300 spin_unlock(&pring->ring_lock); 301 spin_unlock_irq(&phba->hbalock); 302 303 /* Cancel all the IOCBs from the completions list */ 304 lpfc_sli_cancel_iocbs(phba, &abort_list, 305 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 306 307 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 308 } 309 310 /* lpfc_defer_plogi_acc - Issue PLOGI ACC after reg_login completes 311 * @phba: pointer to lpfc hba data structure. 312 * @login_mbox: pointer to REG_RPI mailbox object 313 * 314 * The ACC for a rcv'ed PLOGI is deferred until AFTER the REG_RPI completes 315 */ 316 static void 317 lpfc_defer_plogi_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *login_mbox) 318 { 319 struct lpfc_iocbq *save_iocb; 320 struct lpfc_nodelist *ndlp; 321 MAILBOX_t *mb = &login_mbox->u.mb; 322 323 int rc; 324 325 ndlp = login_mbox->ctx_ndlp; 326 save_iocb = login_mbox->ctx_u.save_iocb; 327 328 if (mb->mbxStatus == MBX_SUCCESS) { 329 /* Now that REG_RPI completed successfully, 330 * we can now proceed with sending the PLOGI ACC. 331 */ 332 rc = lpfc_els_rsp_acc(login_mbox->vport, ELS_CMD_PLOGI, 333 save_iocb, ndlp, NULL); 334 if (rc) { 335 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 336 "4576 PLOGI ACC fails pt2pt discovery: " 337 "DID %x Data: %x\n", ndlp->nlp_DID, rc); 338 } 339 } 340 341 /* Now process the REG_RPI cmpl */ 342 lpfc_mbx_cmpl_reg_login(phba, login_mbox); 343 ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN; 344 kfree(save_iocb); 345 } 346 347 static int 348 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 349 struct lpfc_iocbq *cmdiocb) 350 { 351 struct lpfc_hba *phba = vport->phba; 352 struct lpfc_dmabuf *pcmd; 353 uint64_t nlp_portwwn = 0; 354 uint32_t *lp; 355 union lpfc_wqe128 *wqe; 356 IOCB_t *icmd; 357 struct serv_parm *sp; 358 uint32_t ed_tov; 359 LPFC_MBOXQ_t *link_mbox; 360 LPFC_MBOXQ_t *login_mbox; 361 struct lpfc_iocbq *save_iocb; 362 struct ls_rjt stat; 363 uint32_t vid, flag; 364 int rc; 365 u32 remote_did; 366 367 memset(&stat, 0, sizeof (struct ls_rjt)); 368 pcmd = cmdiocb->cmd_dmabuf; 369 lp = (uint32_t *) pcmd->virt; 370 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 371 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 372 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 373 "0140 PLOGI Reject: invalid pname\n"); 374 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 375 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 376 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 377 NULL); 378 return 0; 379 } 380 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 381 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 382 "0141 PLOGI Reject: invalid nname\n"); 383 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 384 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 385 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 386 NULL); 387 return 0; 388 } 389 390 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 391 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 392 /* Reject this request because invalid parameters */ 393 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 394 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 395 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 396 NULL); 397 return 0; 398 } 399 400 if (phba->sli_rev == LPFC_SLI_REV4) 401 wqe = &cmdiocb->wqe; 402 else 403 icmd = &cmdiocb->iocb; 404 405 /* PLOGI chkparm OK */ 406 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 407 "0114 PLOGI chkparm OK Data: x%x x%x x%x " 408 "x%x x%x x%lx\n", 409 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 410 ndlp->nlp_rpi, vport->port_state, 411 vport->fc_flag); 412 413 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 414 ndlp->nlp_fcp_info |= CLASS2; 415 else 416 ndlp->nlp_fcp_info |= CLASS3; 417 418 ndlp->nlp_class_sup = 0; 419 if (sp->cls1.classValid) 420 ndlp->nlp_class_sup |= FC_COS_CLASS1; 421 if (sp->cls2.classValid) 422 ndlp->nlp_class_sup |= FC_COS_CLASS2; 423 if (sp->cls3.classValid) 424 ndlp->nlp_class_sup |= FC_COS_CLASS3; 425 if (sp->cls4.classValid) 426 ndlp->nlp_class_sup |= FC_COS_CLASS4; 427 ndlp->nlp_maxframe = 428 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 429 /* if already logged in, do implicit logout */ 430 switch (ndlp->nlp_state) { 431 case NLP_STE_NPR_NODE: 432 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 433 break; 434 fallthrough; 435 case NLP_STE_REG_LOGIN_ISSUE: 436 case NLP_STE_PRLI_ISSUE: 437 case NLP_STE_UNMAPPED_NODE: 438 case NLP_STE_MAPPED_NODE: 439 /* For initiators, lpfc_plogi_confirm_nport skips fabric did. 440 * For target mode, execute implicit logo. 441 * Fabric nodes go into NPR. 442 */ 443 if (!(ndlp->nlp_type & NLP_FABRIC) && 444 !(phba->nvmet_support)) { 445 /* Clear ndlp info, since follow up PRLI may have 446 * updated ndlp information 447 */ 448 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 449 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 450 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 451 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 452 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 453 454 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 455 ndlp, NULL); 456 return 1; 457 } 458 if (nlp_portwwn != 0 && 459 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 460 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 461 "0143 PLOGI recv'd from DID: x%x " 462 "WWPN changed: old %llx new %llx\n", 463 ndlp->nlp_DID, 464 (unsigned long long)nlp_portwwn, 465 (unsigned long long) 466 wwn_to_u64(sp->portName.u.wwn)); 467 468 /* Notify transport of connectivity loss to trigger cleanup. */ 469 if (phba->nvmet_support && 470 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 471 lpfc_nvmet_invalidate_host(phba, ndlp); 472 473 ndlp->nlp_prev_state = ndlp->nlp_state; 474 /* rport needs to be unregistered first */ 475 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 476 break; 477 } 478 479 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 480 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 481 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 482 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 483 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 484 485 login_mbox = NULL; 486 link_mbox = NULL; 487 save_iocb = NULL; 488 489 /* Check for Nport to NPort pt2pt protocol */ 490 if (test_bit(FC_PT2PT, &vport->fc_flag) && 491 !test_bit(FC_PT2PT_PLOGI, &vport->fc_flag)) { 492 /* rcv'ed PLOGI decides what our NPortId will be */ 493 if (phba->sli_rev == LPFC_SLI_REV4) { 494 vport->fc_myDID = bf_get(els_rsp64_sid, 495 &cmdiocb->wqe.xmit_els_rsp); 496 } else { 497 vport->fc_myDID = icmd->un.rcvels.parmRo; 498 } 499 500 /* If there is an outstanding FLOGI, abort it now. 501 * The remote NPort is not going to ACC our FLOGI 502 * if its already issuing a PLOGI for pt2pt mode. 503 * This indicates our FLOGI was dropped; however, we 504 * must have ACCed the remote NPorts FLOGI to us 505 * to make it here. 506 */ 507 if (test_bit(HBA_FLOGI_OUTSTANDING, &phba->hba_flag)) 508 lpfc_els_abort_flogi(phba); 509 510 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 511 if (sp->cmn.edtovResolution) { 512 /* E_D_TOV ticks are in nanoseconds */ 513 ed_tov = (phba->fc_edtov + 999999) / 1000000; 514 } 515 516 /* 517 * For pt-to-pt, use the larger EDTOV 518 * RATOV = 2 * EDTOV 519 */ 520 if (ed_tov > phba->fc_edtov) 521 phba->fc_edtov = ed_tov; 522 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 523 524 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 525 526 /* Issue CONFIG_LINK for SLI3 or REG_VFI for SLI4, 527 * to account for updated TOV's / parameters 528 */ 529 if (phba->sli_rev == LPFC_SLI_REV4) 530 lpfc_issue_reg_vfi(vport); 531 else { 532 link_mbox = mempool_alloc(phba->mbox_mem_pool, 533 GFP_KERNEL); 534 if (!link_mbox) 535 goto out; 536 lpfc_config_link(phba, link_mbox); 537 link_mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 538 link_mbox->vport = vport; 539 540 /* The default completion handling for CONFIG_LINK 541 * does not require the ndlp so no reference is needed. 542 */ 543 link_mbox->ctx_ndlp = ndlp; 544 545 rc = lpfc_sli_issue_mbox(phba, link_mbox, MBX_NOWAIT); 546 if (rc == MBX_NOT_FINISHED) { 547 mempool_free(link_mbox, phba->mbox_mem_pool); 548 goto out; 549 } 550 } 551 552 lpfc_can_disctmo(vport); 553 } 554 555 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 556 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 557 sp->cmn.valid_vendor_ver_level) { 558 vid = be32_to_cpu(sp->un.vv.vid); 559 flag = be32_to_cpu(sp->un.vv.flags); 560 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) 561 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 562 } 563 564 login_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 565 if (!login_mbox) 566 goto out; 567 568 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL); 569 if (!save_iocb) 570 goto out; 571 572 /* Save info from cmd IOCB to be used in rsp after all mbox completes */ 573 memcpy((uint8_t *)save_iocb, (uint8_t *)cmdiocb, 574 sizeof(struct lpfc_iocbq)); 575 576 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 577 if (phba->sli_rev == LPFC_SLI_REV4) 578 lpfc_unreg_rpi(vport, ndlp); 579 580 /* Issue REG_LOGIN first, before ACCing the PLOGI, thus we will 581 * always be deferring the ACC. 582 */ 583 if (phba->sli_rev == LPFC_SLI_REV4) 584 remote_did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest); 585 else 586 remote_did = icmd->un.rcvels.remoteID; 587 rc = lpfc_reg_rpi(phba, vport->vpi, remote_did, 588 (uint8_t *)sp, login_mbox, ndlp->nlp_rpi); 589 if (rc) 590 goto out; 591 592 login_mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 593 login_mbox->vport = vport; 594 595 /* 596 * If there is an outstanding PLOGI issued, abort it before 597 * sending ACC rsp for received PLOGI. If pending plogi 598 * is not canceled here, the plogi will be rejected by 599 * remote port and will be retried. On a configuration with 600 * single discovery thread, this will cause a huge delay in 601 * discovery. Also this will cause multiple state machines 602 * running in parallel for this node. 603 * This only applies to a fabric environment. 604 */ 605 if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) && 606 test_bit(FC_FABRIC, &vport->fc_flag)) { 607 /* software abort outstanding PLOGI */ 608 lpfc_els_abort(phba, ndlp); 609 } 610 611 if ((vport->port_type == LPFC_NPIV_PORT && 612 vport->cfg_restrict_login)) { 613 614 /* no deferred ACC */ 615 kfree(save_iocb); 616 617 /* This is an NPIV SLI4 instance that does not need to register 618 * a default RPI. 619 */ 620 if (phba->sli_rev == LPFC_SLI_REV4) { 621 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 622 MBOX_THD_UNLOCKED); 623 login_mbox = NULL; 624 } else { 625 /* In order to preserve RPIs, we want to cleanup 626 * the default RPI the firmware created to rcv 627 * this ELS request. The only way to do this is 628 * to register, then unregister the RPI. 629 */ 630 spin_lock_irq(&ndlp->lock); 631 ndlp->nlp_flag |= (NLP_RM_DFLT_RPI | NLP_ACC_REGLOGIN | 632 NLP_RCV_PLOGI); 633 spin_unlock_irq(&ndlp->lock); 634 } 635 636 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 637 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 638 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 639 ndlp, login_mbox); 640 if (rc && login_mbox) 641 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 642 MBOX_THD_UNLOCKED); 643 return 1; 644 } 645 646 /* So the order here should be: 647 * SLI3 pt2pt 648 * Issue CONFIG_LINK mbox 649 * CONFIG_LINK cmpl 650 * SLI4 pt2pt 651 * Issue REG_VFI mbox 652 * REG_VFI cmpl 653 * SLI4 654 * Issue UNREG RPI mbx 655 * UNREG RPI cmpl 656 * Issue REG_RPI mbox 657 * REG RPI cmpl 658 * Issue PLOGI ACC 659 * PLOGI ACC cmpl 660 */ 661 login_mbox->mbox_cmpl = lpfc_defer_plogi_acc; 662 login_mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 663 if (!login_mbox->ctx_ndlp) 664 goto out; 665 666 login_mbox->ctx_u.save_iocb = save_iocb; /* For PLOGI ACC */ 667 668 spin_lock_irq(&ndlp->lock); 669 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 670 spin_unlock_irq(&ndlp->lock); 671 672 /* Start the ball rolling by issuing REG_LOGIN here */ 673 rc = lpfc_sli_issue_mbox(phba, login_mbox, MBX_NOWAIT); 674 if (rc == MBX_NOT_FINISHED) { 675 lpfc_nlp_put(ndlp); 676 goto out; 677 } 678 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); 679 680 return 1; 681 out: 682 kfree(save_iocb); 683 if (login_mbox) 684 mempool_free(login_mbox, phba->mbox_mem_pool); 685 686 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 687 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 688 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 689 return 0; 690 } 691 692 /** 693 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 694 * @phba: pointer to lpfc hba data structure. 695 * @mboxq: pointer to mailbox object 696 * 697 * This routine is invoked to issue a completion to a rcv'ed 698 * ADISC or PDISC after the paused RPI has been resumed. 699 **/ 700 static void 701 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 702 { 703 struct lpfc_vport *vport; 704 struct lpfc_iocbq *elsiocb; 705 struct lpfc_nodelist *ndlp; 706 uint32_t cmd; 707 708 elsiocb = mboxq->ctx_u.save_iocb; 709 ndlp = mboxq->ctx_ndlp; 710 vport = mboxq->vport; 711 cmd = elsiocb->drvrTimeout; 712 713 if (cmd == ELS_CMD_ADISC) { 714 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 715 } else { 716 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 717 ndlp, NULL); 718 } 719 720 /* This nlp_put pairs with lpfc_sli4_resume_rpi */ 721 lpfc_nlp_put(ndlp); 722 723 kfree(elsiocb); 724 mempool_free(mboxq, phba->mbox_mem_pool); 725 } 726 727 static int 728 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 729 struct lpfc_iocbq *cmdiocb) 730 { 731 struct lpfc_hba *phba = vport->phba; 732 struct lpfc_iocbq *elsiocb; 733 struct lpfc_dmabuf *pcmd; 734 struct serv_parm *sp; 735 struct lpfc_name *pnn, *ppn; 736 struct ls_rjt stat; 737 ADISC *ap; 738 uint32_t *lp; 739 uint32_t cmd; 740 741 pcmd = cmdiocb->cmd_dmabuf; 742 lp = (uint32_t *) pcmd->virt; 743 744 cmd = *lp++; 745 if (cmd == ELS_CMD_ADISC) { 746 ap = (ADISC *) lp; 747 pnn = (struct lpfc_name *) & ap->nodeName; 748 ppn = (struct lpfc_name *) & ap->portName; 749 } else { 750 sp = (struct serv_parm *) lp; 751 pnn = (struct lpfc_name *) & sp->nodeName; 752 ppn = (struct lpfc_name *) & sp->portName; 753 } 754 755 if (get_job_ulpstatus(phba, cmdiocb) == 0 && 756 lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 757 758 /* 759 * As soon as we send ACC, the remote NPort can 760 * start sending us data. Thus, for SLI4 we must 761 * resume the RPI before the ACC goes out. 762 */ 763 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 764 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 765 GFP_KERNEL); 766 if (elsiocb) { 767 /* Save info from cmd IOCB used in rsp */ 768 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 769 sizeof(struct lpfc_iocbq)); 770 771 /* Save the ELS cmd */ 772 elsiocb->drvrTimeout = cmd; 773 774 if (lpfc_sli4_resume_rpi(ndlp, 775 lpfc_mbx_cmpl_resume_rpi, 776 elsiocb)) 777 kfree(elsiocb); 778 goto out; 779 } 780 } 781 782 if (cmd == ELS_CMD_ADISC) { 783 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 784 } else { 785 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 786 ndlp, NULL); 787 } 788 out: 789 /* If we are authenticated, move to the proper state. 790 * It is possible an ADISC arrived and the remote nport 791 * is already in MAPPED or UNMAPPED state. Catch this 792 * condition and don't set the nlp_state again because 793 * it causes an unnecessary transport unregister/register. 794 * 795 * Nodes marked for ADISC will move MAPPED or UNMAPPED state 796 * after issuing ADISC 797 */ 798 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 799 if ((ndlp->nlp_state != NLP_STE_MAPPED_NODE) && 800 !(ndlp->nlp_flag & NLP_NPR_ADISC)) 801 lpfc_nlp_set_state(vport, ndlp, 802 NLP_STE_MAPPED_NODE); 803 } 804 805 return 1; 806 } 807 /* Reject this request because invalid parameters */ 808 stat.un.b.lsRjtRsvd0 = 0; 809 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 810 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 811 stat.un.b.vendorUnique = 0; 812 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 813 814 /* 1 sec timeout */ 815 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 816 817 spin_lock_irq(&ndlp->lock); 818 ndlp->nlp_flag |= NLP_DELAY_TMO; 819 spin_unlock_irq(&ndlp->lock); 820 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 821 ndlp->nlp_prev_state = ndlp->nlp_state; 822 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 823 return 0; 824 } 825 826 static int 827 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 828 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 829 { 830 struct lpfc_hba *phba = vport->phba; 831 struct lpfc_vport **vports; 832 int i, active_vlink_present = 0 ; 833 834 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 835 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 836 * PLOGIs during LOGO storms from a device. 837 */ 838 spin_lock_irq(&ndlp->lock); 839 ndlp->nlp_flag |= NLP_LOGO_ACC; 840 spin_unlock_irq(&ndlp->lock); 841 if (els_cmd == ELS_CMD_PRLO) 842 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 843 else 844 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 845 846 /* This clause allows the initiator to ACC the LOGO back to the 847 * Fabric Domain Controller. It does deliberately skip all other 848 * steps because some fabrics send RDP requests after logging out 849 * from the initiator. 850 */ 851 if (ndlp->nlp_type & NLP_FABRIC && 852 ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK)) 853 return 0; 854 855 /* Notify transport of connectivity loss to trigger cleanup. */ 856 if (phba->nvmet_support && 857 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 858 lpfc_nvmet_invalidate_host(phba, ndlp); 859 860 if (ndlp->nlp_DID == Fabric_DID) { 861 if (vport->port_state <= LPFC_FDISC || 862 test_bit(FC_PT2PT, &vport->fc_flag)) 863 goto out; 864 lpfc_linkdown_port(vport); 865 set_bit(FC_VPORT_LOGO_RCVD, &vport->fc_flag); 866 vports = lpfc_create_vport_work_array(phba); 867 if (vports) { 868 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 869 i++) { 870 if (!test_bit(FC_VPORT_LOGO_RCVD, 871 &vports[i]->fc_flag) && 872 vports[i]->port_state > LPFC_FDISC) { 873 active_vlink_present = 1; 874 break; 875 } 876 } 877 lpfc_destroy_vport_work_array(phba, vports); 878 } 879 880 /* 881 * Don't re-instantiate if vport is marked for deletion. 882 * If we are here first then vport_delete is going to wait 883 * for discovery to complete. 884 */ 885 if (!test_bit(FC_UNLOADING, &vport->load_flag) && 886 active_vlink_present) { 887 /* 888 * If there are other active VLinks present, 889 * re-instantiate the Vlink using FDISC. 890 */ 891 mod_timer(&ndlp->nlp_delayfunc, 892 jiffies + msecs_to_jiffies(1000)); 893 spin_lock_irq(&ndlp->lock); 894 ndlp->nlp_flag |= NLP_DELAY_TMO; 895 spin_unlock_irq(&ndlp->lock); 896 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 897 vport->port_state = LPFC_FDISC; 898 } else { 899 clear_bit(FC_LOGO_RCVD_DID_CHNG, &phba->pport->fc_flag); 900 lpfc_retry_pport_discovery(phba); 901 } 902 } else { 903 lpfc_printf_vlog(vport, KERN_INFO, 904 LOG_NODE | LOG_ELS | LOG_DISCOVERY, 905 "3203 LOGO recover nport x%06x state x%x " 906 "ntype x%x fc_flag x%lx\n", 907 ndlp->nlp_DID, ndlp->nlp_state, 908 ndlp->nlp_type, vport->fc_flag); 909 910 /* Special cases for rports that recover post LOGO. */ 911 if ((!(ndlp->nlp_type == NLP_FABRIC) && 912 (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) || 913 test_bit(FC_PT2PT, &vport->fc_flag))) || 914 (ndlp->nlp_state >= NLP_STE_ADISC_ISSUE || 915 ndlp->nlp_state <= NLP_STE_PRLI_ISSUE)) { 916 mod_timer(&ndlp->nlp_delayfunc, 917 jiffies + msecs_to_jiffies(1000 * 1)); 918 spin_lock_irq(&ndlp->lock); 919 ndlp->nlp_flag |= NLP_DELAY_TMO; 920 spin_unlock_irq(&ndlp->lock); 921 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 922 lpfc_printf_vlog(vport, KERN_INFO, 923 LOG_NODE | LOG_ELS | LOG_DISCOVERY, 924 "3204 Start nlpdelay on DID x%06x " 925 "nflag x%x lastels x%x ref cnt %u", 926 ndlp->nlp_DID, ndlp->nlp_flag, 927 ndlp->nlp_last_elscmd, 928 kref_read(&ndlp->kref)); 929 } 930 } 931 out: 932 /* Unregister from backend, could have been skipped due to ADISC */ 933 lpfc_nlp_unreg_node(vport, ndlp); 934 935 ndlp->nlp_prev_state = ndlp->nlp_state; 936 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 937 938 spin_lock_irq(&ndlp->lock); 939 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 940 spin_unlock_irq(&ndlp->lock); 941 /* The driver has to wait until the ACC completes before it continues 942 * processing the LOGO. The action will resume in 943 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 944 * unreg_login, the driver waits so the ACC does not get aborted. 945 */ 946 return 0; 947 } 948 949 static uint32_t 950 lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 951 struct lpfc_nodelist *ndlp, 952 struct lpfc_iocbq *cmdiocb) 953 { 954 struct ls_rjt stat; 955 uint32_t *payload; 956 uint32_t cmd; 957 PRLI *npr; 958 959 payload = cmdiocb->cmd_dmabuf->virt; 960 cmd = *payload; 961 npr = (PRLI *)((uint8_t *)payload + sizeof(uint32_t)); 962 963 if (vport->phba->nvmet_support) { 964 /* Must be a NVME PRLI */ 965 if (cmd == ELS_CMD_PRLI) 966 goto out; 967 } else { 968 /* Initiator mode. */ 969 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 970 goto out; 971 972 /* NPIV ports will RJT initiator only functions */ 973 if (vport->port_type == LPFC_NPIV_PORT && 974 npr->initiatorFunc && !npr->targetFunc) 975 goto out; 976 } 977 return 1; 978 out: 979 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 980 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 981 "state x%x flags x%x port_type: x%x " 982 "npr->initfcn: x%x npr->tgtfcn: x%x\n", 983 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 984 ndlp->nlp_flag, vport->port_type, 985 npr->initiatorFunc, npr->targetFunc); 986 memset(&stat, 0, sizeof(struct ls_rjt)); 987 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 988 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 989 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 990 ndlp, NULL); 991 return 0; 992 } 993 994 static void 995 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 996 struct lpfc_iocbq *cmdiocb) 997 { 998 struct lpfc_hba *phba = vport->phba; 999 struct lpfc_dmabuf *pcmd; 1000 uint32_t *lp; 1001 PRLI *npr; 1002 struct fc_rport *rport = ndlp->rport; 1003 u32 roles; 1004 1005 pcmd = cmdiocb->cmd_dmabuf; 1006 lp = (uint32_t *)pcmd->virt; 1007 npr = (PRLI *)((uint8_t *)lp + sizeof(uint32_t)); 1008 1009 if ((npr->prliType == PRLI_FCP_TYPE) || 1010 (npr->prliType == PRLI_NVME_TYPE)) { 1011 if (npr->initiatorFunc) { 1012 if (npr->prliType == PRLI_FCP_TYPE) 1013 ndlp->nlp_type |= NLP_FCP_INITIATOR; 1014 if (npr->prliType == PRLI_NVME_TYPE) 1015 ndlp->nlp_type |= NLP_NVME_INITIATOR; 1016 } 1017 if (npr->targetFunc) { 1018 if (npr->prliType == PRLI_FCP_TYPE) 1019 ndlp->nlp_type |= NLP_FCP_TARGET; 1020 if (npr->prliType == PRLI_NVME_TYPE) 1021 ndlp->nlp_type |= NLP_NVME_TARGET; 1022 if (npr->writeXferRdyDis) 1023 ndlp->nlp_flag |= NLP_FIRSTBURST; 1024 } 1025 if (npr->Retry && ndlp->nlp_type & 1026 (NLP_FCP_INITIATOR | NLP_FCP_TARGET)) 1027 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 1028 1029 if (npr->Retry && phba->nsler && 1030 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET)) 1031 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 1032 1033 1034 /* If this driver is in nvme target mode, set the ndlp's fc4 1035 * type to NVME provided the PRLI response claims NVME FC4 1036 * type. Target mode does not issue gft_id so doesn't get 1037 * the fc4 type set until now. 1038 */ 1039 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 1040 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1041 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1042 } 1043 1044 /* Fabric Controllers send FCP PRLI as an initiator but should 1045 * not get recognized as FCP type and registered with transport. 1046 */ 1047 if (npr->prliType == PRLI_FCP_TYPE && 1048 !(ndlp->nlp_type & NLP_FABRIC)) 1049 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1050 } 1051 if (rport) { 1052 /* We need to update the rport role values */ 1053 roles = FC_RPORT_ROLE_UNKNOWN; 1054 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 1055 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 1056 if (ndlp->nlp_type & NLP_FCP_TARGET) 1057 roles |= FC_RPORT_ROLE_FCP_TARGET; 1058 1059 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 1060 "rport rolechg: role:x%x did:x%x flg:x%x", 1061 roles, ndlp->nlp_DID, ndlp->nlp_flag); 1062 1063 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1064 fc_remote_port_rolechg(rport, roles); 1065 } 1066 } 1067 1068 static uint32_t 1069 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 1070 { 1071 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 1072 spin_lock_irq(&ndlp->lock); 1073 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1074 spin_unlock_irq(&ndlp->lock); 1075 return 0; 1076 } 1077 1078 if (!test_bit(FC_PT2PT, &vport->fc_flag)) { 1079 /* Check config parameter use-adisc or FCP-2 */ 1080 if (vport->cfg_use_adisc && 1081 (test_bit(FC_RSCN_MODE, &vport->fc_flag) || 1082 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 1083 (ndlp->nlp_type & NLP_FCP_TARGET)))) { 1084 spin_lock_irq(&ndlp->lock); 1085 ndlp->nlp_flag |= NLP_NPR_ADISC; 1086 spin_unlock_irq(&ndlp->lock); 1087 return 1; 1088 } 1089 } 1090 1091 spin_lock_irq(&ndlp->lock); 1092 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1093 spin_unlock_irq(&ndlp->lock); 1094 lpfc_unreg_rpi(vport, ndlp); 1095 return 0; 1096 } 1097 1098 /** 1099 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 1100 * @phba : Pointer to lpfc_hba structure. 1101 * @vport: Pointer to lpfc_vport structure. 1102 * @ndlp: Pointer to lpfc_nodelist structure. 1103 * @rpi : rpi to be release. 1104 * 1105 * This function will send a unreg_login mailbox command to the firmware 1106 * to release a rpi. 1107 **/ 1108 static void 1109 lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, 1110 struct lpfc_nodelist *ndlp, uint16_t rpi) 1111 { 1112 LPFC_MBOXQ_t *pmb; 1113 int rc; 1114 1115 /* If there is already an UNREG in progress for this ndlp, 1116 * no need to queue up another one. 1117 */ 1118 if (ndlp->nlp_flag & NLP_UNREG_INP) { 1119 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1120 "1435 release_rpi SKIP UNREG x%x on " 1121 "NPort x%x deferred x%x flg x%x " 1122 "Data: x%px\n", 1123 ndlp->nlp_rpi, ndlp->nlp_DID, 1124 ndlp->nlp_defer_did, 1125 ndlp->nlp_flag, ndlp); 1126 return; 1127 } 1128 1129 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 1130 GFP_KERNEL); 1131 if (!pmb) 1132 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1133 "2796 mailbox memory allocation failed \n"); 1134 else { 1135 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 1136 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1137 pmb->vport = vport; 1138 pmb->ctx_ndlp = lpfc_nlp_get(ndlp); 1139 if (!pmb->ctx_ndlp) { 1140 mempool_free(pmb, phba->mbox_mem_pool); 1141 return; 1142 } 1143 1144 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 1145 (!test_bit(FC_OFFLINE_MODE, &vport->fc_flag))) 1146 ndlp->nlp_flag |= NLP_UNREG_INP; 1147 1148 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1149 "1437 release_rpi UNREG x%x " 1150 "on NPort x%x flg x%x\n", 1151 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); 1152 1153 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 1154 if (rc == MBX_NOT_FINISHED) { 1155 lpfc_nlp_put(ndlp); 1156 mempool_free(pmb, phba->mbox_mem_pool); 1157 } 1158 } 1159 } 1160 1161 static uint32_t 1162 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1163 void *arg, uint32_t evt) 1164 { 1165 struct lpfc_hba *phba; 1166 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1167 uint16_t rpi; 1168 1169 phba = vport->phba; 1170 /* Release the RPI if reglogin completing */ 1171 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag) && 1172 evt == NLP_EVT_CMPL_REG_LOGIN && !pmb->u.mb.mbxStatus) { 1173 rpi = pmb->u.mb.un.varWords[0]; 1174 lpfc_release_rpi(phba, vport, ndlp, rpi); 1175 } 1176 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1177 "0271 Illegal State Transition: node x%x " 1178 "event x%x, state x%x Data: x%x x%x\n", 1179 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1180 ndlp->nlp_flag); 1181 return ndlp->nlp_state; 1182 } 1183 1184 static uint32_t 1185 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1186 void *arg, uint32_t evt) 1187 { 1188 /* This transition is only legal if we previously 1189 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 1190 * working on the same NPortID, do nothing for this thread 1191 * to stop it. 1192 */ 1193 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 1194 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1195 "0272 Illegal State Transition: node x%x " 1196 "event x%x, state x%x Data: x%x x%x\n", 1197 ndlp->nlp_DID, evt, ndlp->nlp_state, 1198 ndlp->nlp_rpi, ndlp->nlp_flag); 1199 } 1200 return ndlp->nlp_state; 1201 } 1202 1203 /* Start of Discovery State Machine routines */ 1204 1205 static uint32_t 1206 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1207 void *arg, uint32_t evt) 1208 { 1209 struct lpfc_iocbq *cmdiocb; 1210 1211 cmdiocb = (struct lpfc_iocbq *) arg; 1212 1213 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1214 return ndlp->nlp_state; 1215 } 1216 return NLP_STE_FREED_NODE; 1217 } 1218 1219 static uint32_t 1220 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1221 void *arg, uint32_t evt) 1222 { 1223 lpfc_issue_els_logo(vport, ndlp, 0); 1224 return ndlp->nlp_state; 1225 } 1226 1227 static uint32_t 1228 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1229 void *arg, uint32_t evt) 1230 { 1231 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1232 1233 spin_lock_irq(&ndlp->lock); 1234 ndlp->nlp_flag |= NLP_LOGO_ACC; 1235 spin_unlock_irq(&ndlp->lock); 1236 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1237 1238 return ndlp->nlp_state; 1239 } 1240 1241 static uint32_t 1242 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1243 void *arg, uint32_t evt) 1244 { 1245 return NLP_STE_FREED_NODE; 1246 } 1247 1248 static uint32_t 1249 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1250 void *arg, uint32_t evt) 1251 { 1252 return NLP_STE_FREED_NODE; 1253 } 1254 1255 static uint32_t 1256 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 1257 struct lpfc_nodelist *ndlp, 1258 void *arg, uint32_t evt) 1259 { 1260 return ndlp->nlp_state; 1261 } 1262 1263 static uint32_t 1264 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1265 void *arg, uint32_t evt) 1266 { 1267 struct lpfc_hba *phba = vport->phba; 1268 struct lpfc_iocbq *cmdiocb = arg; 1269 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 1270 uint32_t *lp = (uint32_t *) pcmd->virt; 1271 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1272 struct ls_rjt stat; 1273 int port_cmp; 1274 1275 memset(&stat, 0, sizeof (struct ls_rjt)); 1276 1277 /* For a PLOGI, we only accept if our portname is less 1278 * than the remote portname. 1279 */ 1280 phba->fc_stat.elsLogiCol++; 1281 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1282 sizeof(struct lpfc_name)); 1283 1284 if (port_cmp >= 0) { 1285 /* Reject this request because the remote node will accept 1286 ours */ 1287 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1288 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1289 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1290 NULL); 1291 } else { 1292 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1293 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 1294 (vport->num_disc_nodes)) { 1295 spin_lock_irq(&ndlp->lock); 1296 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1297 spin_unlock_irq(&ndlp->lock); 1298 /* Check if there are more PLOGIs to be sent */ 1299 lpfc_more_plogi(vport); 1300 if (vport->num_disc_nodes == 0) { 1301 clear_bit(FC_NDISC_ACTIVE, &vport->fc_flag); 1302 lpfc_can_disctmo(vport); 1303 lpfc_end_rscn(vport); 1304 } 1305 } 1306 } /* If our portname was less */ 1307 1308 return ndlp->nlp_state; 1309 } 1310 1311 static uint32_t 1312 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1313 void *arg, uint32_t evt) 1314 { 1315 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1316 struct ls_rjt stat; 1317 1318 memset(&stat, 0, sizeof (struct ls_rjt)); 1319 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1320 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1321 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1322 return ndlp->nlp_state; 1323 } 1324 1325 static uint32_t 1326 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1327 void *arg, uint32_t evt) 1328 { 1329 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1330 1331 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1332 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1333 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1334 /* software abort outstanding PLOGI */ 1335 lpfc_els_abort(vport->phba, ndlp); 1336 1337 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1338 return ndlp->nlp_state; 1339 } 1340 1341 static uint32_t 1342 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1343 void *arg, uint32_t evt) 1344 { 1345 struct lpfc_hba *phba = vport->phba; 1346 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1347 1348 /* software abort outstanding PLOGI */ 1349 lpfc_els_abort(phba, ndlp); 1350 1351 if (evt == NLP_EVT_RCV_LOGO) { 1352 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1353 } else { 1354 lpfc_issue_els_logo(vport, ndlp, 0); 1355 } 1356 1357 /* Put ndlp in npr state set plogi timer for 1 sec */ 1358 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1359 spin_lock_irq(&ndlp->lock); 1360 ndlp->nlp_flag |= NLP_DELAY_TMO; 1361 spin_unlock_irq(&ndlp->lock); 1362 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1363 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1364 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1365 1366 return ndlp->nlp_state; 1367 } 1368 1369 static uint32_t 1370 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1371 struct lpfc_nodelist *ndlp, 1372 void *arg, 1373 uint32_t evt) 1374 { 1375 struct lpfc_hba *phba = vport->phba; 1376 struct lpfc_iocbq *cmdiocb, *rspiocb; 1377 struct lpfc_dmabuf *pcmd, *prsp; 1378 uint32_t *lp; 1379 uint32_t vid, flag; 1380 struct serv_parm *sp; 1381 uint32_t ed_tov; 1382 LPFC_MBOXQ_t *mbox; 1383 int rc; 1384 u32 ulp_status; 1385 u32 did; 1386 1387 cmdiocb = (struct lpfc_iocbq *) arg; 1388 rspiocb = cmdiocb->rsp_iocb; 1389 1390 ulp_status = get_job_ulpstatus(phba, rspiocb); 1391 1392 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1393 /* Recovery from PLOGI collision logic */ 1394 return ndlp->nlp_state; 1395 } 1396 1397 if (ulp_status) 1398 goto out; 1399 1400 pcmd = cmdiocb->cmd_dmabuf; 1401 1402 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1403 if (!prsp) 1404 goto out; 1405 1406 lp = (uint32_t *) prsp->virt; 1407 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1408 1409 /* Some switches have FDMI servers returning 0 for WWN */ 1410 if ((ndlp->nlp_DID != FDMI_DID) && 1411 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1412 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1413 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1414 "0142 PLOGI RSP: Invalid WWN.\n"); 1415 goto out; 1416 } 1417 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1418 goto out; 1419 /* PLOGI chkparm OK */ 1420 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1421 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1422 ndlp->nlp_DID, ndlp->nlp_state, 1423 ndlp->nlp_flag, ndlp->nlp_rpi); 1424 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1425 ndlp->nlp_fcp_info |= CLASS2; 1426 else 1427 ndlp->nlp_fcp_info |= CLASS3; 1428 1429 ndlp->nlp_class_sup = 0; 1430 if (sp->cls1.classValid) 1431 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1432 if (sp->cls2.classValid) 1433 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1434 if (sp->cls3.classValid) 1435 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1436 if (sp->cls4.classValid) 1437 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1438 ndlp->nlp_maxframe = 1439 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1440 1441 if (test_bit(FC_PT2PT, &vport->fc_flag) && 1442 test_bit(FC_PT2PT_PLOGI, &vport->fc_flag)) { 1443 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1444 if (sp->cmn.edtovResolution) { 1445 /* E_D_TOV ticks are in nanoseconds */ 1446 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1447 } 1448 1449 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 1450 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1451 sp->cmn.valid_vendor_ver_level) { 1452 vid = be32_to_cpu(sp->un.vv.vid); 1453 flag = be32_to_cpu(sp->un.vv.flags); 1454 if ((vid == LPFC_VV_EMLX_ID) && 1455 (flag & LPFC_VV_SUPPRESS_RSP)) 1456 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 1457 } 1458 1459 /* 1460 * Use the larger EDTOV 1461 * RATOV = 2 * EDTOV for pt-to-pt 1462 */ 1463 if (ed_tov > phba->fc_edtov) 1464 phba->fc_edtov = ed_tov; 1465 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1466 1467 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1468 1469 /* Issue config_link / reg_vfi to account for updated TOV's */ 1470 if (phba->sli_rev == LPFC_SLI_REV4) { 1471 lpfc_issue_reg_vfi(vport); 1472 } else { 1473 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1474 if (!mbox) { 1475 lpfc_printf_vlog(vport, KERN_ERR, 1476 LOG_TRACE_EVENT, 1477 "0133 PLOGI: no memory " 1478 "for config_link " 1479 "Data: x%x x%x x%x x%x\n", 1480 ndlp->nlp_DID, ndlp->nlp_state, 1481 ndlp->nlp_flag, ndlp->nlp_rpi); 1482 goto out; 1483 } 1484 1485 lpfc_config_link(phba, mbox); 1486 1487 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1488 mbox->vport = vport; 1489 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1490 if (rc == MBX_NOT_FINISHED) { 1491 mempool_free(mbox, phba->mbox_mem_pool); 1492 goto out; 1493 } 1494 } 1495 } 1496 1497 lpfc_unreg_rpi(vport, ndlp); 1498 1499 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1500 if (!mbox) { 1501 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1502 "0018 PLOGI: no memory for reg_login " 1503 "Data: x%x x%x x%x x%x\n", 1504 ndlp->nlp_DID, ndlp->nlp_state, 1505 ndlp->nlp_flag, ndlp->nlp_rpi); 1506 goto out; 1507 } 1508 1509 did = get_job_els_rsp64_did(phba, cmdiocb); 1510 1511 if (lpfc_reg_rpi(phba, vport->vpi, did, 1512 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1513 switch (ndlp->nlp_DID) { 1514 case NameServer_DID: 1515 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1516 /* Fabric Controller Node needs these parameters. */ 1517 memcpy(&ndlp->fc_sparam, sp, sizeof(struct serv_parm)); 1518 break; 1519 case FDMI_DID: 1520 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1521 break; 1522 default: 1523 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1524 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1525 } 1526 1527 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1528 if (!mbox->ctx_ndlp) 1529 goto out; 1530 1531 mbox->vport = vport; 1532 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1533 != MBX_NOT_FINISHED) { 1534 lpfc_nlp_set_state(vport, ndlp, 1535 NLP_STE_REG_LOGIN_ISSUE); 1536 return ndlp->nlp_state; 1537 } 1538 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1539 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1540 /* decrement node reference count to the failed mbox 1541 * command 1542 */ 1543 lpfc_nlp_put(ndlp); 1544 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 1545 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1546 "0134 PLOGI: cannot issue reg_login " 1547 "Data: x%x x%x x%x x%x\n", 1548 ndlp->nlp_DID, ndlp->nlp_state, 1549 ndlp->nlp_flag, ndlp->nlp_rpi); 1550 } else { 1551 mempool_free(mbox, phba->mbox_mem_pool); 1552 1553 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1554 "0135 PLOGI: cannot format reg_login " 1555 "Data: x%x x%x x%x x%x\n", 1556 ndlp->nlp_DID, ndlp->nlp_state, 1557 ndlp->nlp_flag, ndlp->nlp_rpi); 1558 } 1559 1560 1561 out: 1562 if (ndlp->nlp_DID == NameServer_DID) { 1563 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1564 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1565 "0261 Cannot Register NameServer login\n"); 1566 } 1567 1568 /* 1569 ** In case the node reference counter does not go to zero, ensure that 1570 ** the stale state for the node is not processed. 1571 */ 1572 1573 ndlp->nlp_prev_state = ndlp->nlp_state; 1574 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1575 return NLP_STE_FREED_NODE; 1576 } 1577 1578 static uint32_t 1579 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1580 void *arg, uint32_t evt) 1581 { 1582 return ndlp->nlp_state; 1583 } 1584 1585 static uint32_t 1586 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1587 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1588 { 1589 struct lpfc_hba *phba; 1590 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1591 MAILBOX_t *mb = &pmb->u.mb; 1592 uint16_t rpi; 1593 1594 phba = vport->phba; 1595 /* Release the RPI */ 1596 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag) && 1597 !mb->mbxStatus) { 1598 rpi = pmb->u.mb.un.varWords[0]; 1599 lpfc_release_rpi(phba, vport, ndlp, rpi); 1600 } 1601 return ndlp->nlp_state; 1602 } 1603 1604 static uint32_t 1605 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1606 void *arg, uint32_t evt) 1607 { 1608 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1609 spin_lock_irq(&ndlp->lock); 1610 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1611 spin_unlock_irq(&ndlp->lock); 1612 return ndlp->nlp_state; 1613 } else { 1614 /* software abort outstanding PLOGI */ 1615 lpfc_els_abort(vport->phba, ndlp); 1616 1617 lpfc_drop_node(vport, ndlp); 1618 return NLP_STE_FREED_NODE; 1619 } 1620 } 1621 1622 static uint32_t 1623 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1624 struct lpfc_nodelist *ndlp, 1625 void *arg, 1626 uint32_t evt) 1627 { 1628 struct lpfc_hba *phba = vport->phba; 1629 1630 /* Don't do anything that disrupts the RSCN unless lpfc is unloading. */ 1631 if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag)) 1632 return ndlp->nlp_state; 1633 1634 /* software abort outstanding PLOGI */ 1635 lpfc_els_abort(phba, ndlp); 1636 1637 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1638 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1639 spin_lock_irq(&ndlp->lock); 1640 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1641 spin_unlock_irq(&ndlp->lock); 1642 1643 return ndlp->nlp_state; 1644 } 1645 1646 static uint32_t 1647 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1648 void *arg, uint32_t evt) 1649 { 1650 struct lpfc_hba *phba = vport->phba; 1651 struct lpfc_iocbq *cmdiocb; 1652 1653 /* software abort outstanding ADISC */ 1654 lpfc_els_abort(phba, ndlp); 1655 1656 cmdiocb = (struct lpfc_iocbq *) arg; 1657 1658 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1659 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1660 spin_lock_irq(&ndlp->lock); 1661 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1662 spin_unlock_irq(&ndlp->lock); 1663 if (vport->num_disc_nodes) 1664 lpfc_more_adisc(vport); 1665 } 1666 return ndlp->nlp_state; 1667 } 1668 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1669 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1670 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1671 1672 return ndlp->nlp_state; 1673 } 1674 1675 static uint32_t 1676 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1677 void *arg, uint32_t evt) 1678 { 1679 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1680 1681 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1682 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1683 return ndlp->nlp_state; 1684 } 1685 1686 static uint32_t 1687 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1688 void *arg, uint32_t evt) 1689 { 1690 struct lpfc_hba *phba = vport->phba; 1691 struct lpfc_iocbq *cmdiocb; 1692 1693 cmdiocb = (struct lpfc_iocbq *) arg; 1694 1695 /* software abort outstanding ADISC */ 1696 lpfc_els_abort(phba, ndlp); 1697 1698 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1699 return ndlp->nlp_state; 1700 } 1701 1702 static uint32_t 1703 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1704 struct lpfc_nodelist *ndlp, 1705 void *arg, uint32_t evt) 1706 { 1707 struct lpfc_iocbq *cmdiocb; 1708 1709 cmdiocb = (struct lpfc_iocbq *) arg; 1710 1711 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1712 return ndlp->nlp_state; 1713 } 1714 1715 static uint32_t 1716 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1717 void *arg, uint32_t evt) 1718 { 1719 struct lpfc_iocbq *cmdiocb; 1720 1721 cmdiocb = (struct lpfc_iocbq *) arg; 1722 1723 /* Treat like rcv logo */ 1724 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1725 return ndlp->nlp_state; 1726 } 1727 1728 static uint32_t 1729 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1730 struct lpfc_nodelist *ndlp, 1731 void *arg, uint32_t evt) 1732 { 1733 struct lpfc_hba *phba = vport->phba; 1734 struct lpfc_iocbq *cmdiocb, *rspiocb; 1735 ADISC *ap; 1736 int rc; 1737 u32 ulp_status; 1738 1739 cmdiocb = (struct lpfc_iocbq *) arg; 1740 rspiocb = cmdiocb->rsp_iocb; 1741 1742 ulp_status = get_job_ulpstatus(phba, rspiocb); 1743 1744 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1745 1746 if ((ulp_status) || 1747 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1748 /* 1 sec timeout */ 1749 mod_timer(&ndlp->nlp_delayfunc, 1750 jiffies + msecs_to_jiffies(1000)); 1751 spin_lock_irq(&ndlp->lock); 1752 ndlp->nlp_flag |= NLP_DELAY_TMO; 1753 spin_unlock_irq(&ndlp->lock); 1754 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1755 1756 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1757 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1758 lpfc_unreg_rpi(vport, ndlp); 1759 return ndlp->nlp_state; 1760 } 1761 1762 if (phba->sli_rev == LPFC_SLI_REV4) { 1763 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1764 if (rc) { 1765 /* Stay in state and retry. */ 1766 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1767 return ndlp->nlp_state; 1768 } 1769 } 1770 1771 if (ndlp->nlp_type & NLP_FCP_TARGET) 1772 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1773 1774 if (ndlp->nlp_type & NLP_NVME_TARGET) 1775 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1776 1777 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 1778 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1779 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1780 } else { 1781 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1782 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1783 } 1784 1785 return ndlp->nlp_state; 1786 } 1787 1788 static uint32_t 1789 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1790 void *arg, uint32_t evt) 1791 { 1792 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1793 spin_lock_irq(&ndlp->lock); 1794 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1795 spin_unlock_irq(&ndlp->lock); 1796 return ndlp->nlp_state; 1797 } else { 1798 /* software abort outstanding ADISC */ 1799 lpfc_els_abort(vport->phba, ndlp); 1800 1801 lpfc_drop_node(vport, ndlp); 1802 return NLP_STE_FREED_NODE; 1803 } 1804 } 1805 1806 static uint32_t 1807 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1808 struct lpfc_nodelist *ndlp, 1809 void *arg, 1810 uint32_t evt) 1811 { 1812 struct lpfc_hba *phba = vport->phba; 1813 1814 /* Don't do anything that disrupts the RSCN unless lpfc is unloading. */ 1815 if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag)) 1816 return ndlp->nlp_state; 1817 1818 /* software abort outstanding ADISC */ 1819 lpfc_els_abort(phba, ndlp); 1820 1821 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1822 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1823 spin_lock_irq(&ndlp->lock); 1824 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1825 spin_unlock_irq(&ndlp->lock); 1826 lpfc_disc_set_adisc(vport, ndlp); 1827 return ndlp->nlp_state; 1828 } 1829 1830 static uint32_t 1831 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1832 struct lpfc_nodelist *ndlp, 1833 void *arg, 1834 uint32_t evt) 1835 { 1836 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1837 1838 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1839 return ndlp->nlp_state; 1840 } 1841 1842 static uint32_t 1843 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1844 struct lpfc_nodelist *ndlp, 1845 void *arg, 1846 uint32_t evt) 1847 { 1848 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1849 struct ls_rjt stat; 1850 1851 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1852 return ndlp->nlp_state; 1853 } 1854 if (vport->phba->nvmet_support) { 1855 /* NVME Target mode. Handle and respond to the PRLI and 1856 * transition to UNMAPPED provided the RPI has completed 1857 * registration. 1858 */ 1859 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 1860 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1861 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1862 } else { 1863 /* RPI registration has not completed. Reject the PRLI 1864 * to prevent an illegal state transition when the 1865 * rpi registration does complete. 1866 */ 1867 memset(&stat, 0, sizeof(struct ls_rjt)); 1868 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1869 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1870 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1871 ndlp, NULL); 1872 return ndlp->nlp_state; 1873 } 1874 } else { 1875 /* Initiator mode. */ 1876 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1877 } 1878 return ndlp->nlp_state; 1879 } 1880 1881 static uint32_t 1882 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1883 struct lpfc_nodelist *ndlp, 1884 void *arg, 1885 uint32_t evt) 1886 { 1887 struct lpfc_hba *phba = vport->phba; 1888 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1889 LPFC_MBOXQ_t *mb; 1890 LPFC_MBOXQ_t *nextmb; 1891 1892 cmdiocb = (struct lpfc_iocbq *) arg; 1893 1894 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1895 if ((mb = phba->sli.mbox_active)) { 1896 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1897 (ndlp == mb->ctx_ndlp)) { 1898 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1899 lpfc_nlp_put(ndlp); 1900 mb->ctx_ndlp = NULL; 1901 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1902 } 1903 } 1904 1905 spin_lock_irq(&phba->hbalock); 1906 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1907 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1908 (ndlp == mb->ctx_ndlp)) { 1909 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1910 lpfc_nlp_put(ndlp); 1911 list_del(&mb->list); 1912 phba->sli.mboxq_cnt--; 1913 lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_LOCKED); 1914 } 1915 } 1916 spin_unlock_irq(&phba->hbalock); 1917 1918 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1919 return ndlp->nlp_state; 1920 } 1921 1922 static uint32_t 1923 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1924 struct lpfc_nodelist *ndlp, 1925 void *arg, 1926 uint32_t evt) 1927 { 1928 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1929 1930 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1931 return ndlp->nlp_state; 1932 } 1933 1934 static uint32_t 1935 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1936 struct lpfc_nodelist *ndlp, 1937 void *arg, 1938 uint32_t evt) 1939 { 1940 struct lpfc_iocbq *cmdiocb; 1941 1942 cmdiocb = (struct lpfc_iocbq *) arg; 1943 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1944 return ndlp->nlp_state; 1945 } 1946 1947 static uint32_t 1948 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1949 struct lpfc_nodelist *ndlp, 1950 void *arg, 1951 uint32_t evt) 1952 { 1953 struct lpfc_hba *phba = vport->phba; 1954 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1955 MAILBOX_t *mb = &pmb->u.mb; 1956 uint32_t did = mb->un.varWords[1]; 1957 1958 if (mb->mbxStatus) { 1959 /* RegLogin failed */ 1960 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1961 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1962 "x%x\n", 1963 did, mb->mbxStatus, vport->port_state, 1964 mb->un.varRegLogin.vpi, 1965 mb->un.varRegLogin.rpi); 1966 /* 1967 * If RegLogin failed due to lack of HBA resources do not 1968 * retry discovery. 1969 */ 1970 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1971 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1972 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1973 return ndlp->nlp_state; 1974 } 1975 1976 /* Put ndlp in npr state set plogi timer for 1 sec */ 1977 mod_timer(&ndlp->nlp_delayfunc, 1978 jiffies + msecs_to_jiffies(1000 * 1)); 1979 spin_lock_irq(&ndlp->lock); 1980 ndlp->nlp_flag |= NLP_DELAY_TMO; 1981 spin_unlock_irq(&ndlp->lock); 1982 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1983 1984 lpfc_issue_els_logo(vport, ndlp, 0); 1985 return ndlp->nlp_state; 1986 } 1987 1988 /* SLI4 ports have preallocated logical rpis. */ 1989 if (phba->sli_rev < LPFC_SLI_REV4) 1990 ndlp->nlp_rpi = mb->un.varWords[0]; 1991 1992 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1993 1994 /* Only if we are not a fabric nport do we issue PRLI */ 1995 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1996 "3066 RegLogin Complete on x%x x%x x%x\n", 1997 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 1998 if (!(ndlp->nlp_type & NLP_FABRIC) && 1999 (phba->nvmet_support == 0)) { 2000 /* The driver supports FCP and NVME concurrently. If the 2001 * ndlp's nlp_fc4_type is still zero, the driver doesn't 2002 * know what PRLI to send yet. Figure that out now and 2003 * call PRLI depending on the outcome. 2004 */ 2005 if (test_bit(FC_PT2PT, &vport->fc_flag)) { 2006 /* If we are pt2pt, there is no Fabric to determine 2007 * the FC4 type of the remote nport. So if NVME 2008 * is configured try it. 2009 */ 2010 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 2011 if ((!test_bit(FC_PT2PT_NO_NVME, &vport->fc_flag)) && 2012 (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH || 2013 vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 2014 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 2015 /* We need to update the localport also */ 2016 lpfc_nvme_update_localport(vport); 2017 } 2018 2019 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2020 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 2021 2022 } else if (ndlp->nlp_fc4_type == 0) { 2023 /* If we are only configured for FCP, the driver 2024 * should just issue PRLI for FCP. Otherwise issue 2025 * GFT_ID to determine if remote port supports NVME. 2026 */ 2027 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 2028 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0, 2029 ndlp->nlp_DID); 2030 return ndlp->nlp_state; 2031 } 2032 ndlp->nlp_fc4_type = NLP_FC4_FCP; 2033 } 2034 2035 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2036 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 2037 if (lpfc_issue_els_prli(vport, ndlp, 0)) { 2038 lpfc_issue_els_logo(vport, ndlp, 0); 2039 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2040 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2041 } 2042 } else { 2043 if (test_bit(FC_PT2PT, &vport->fc_flag) && phba->nvmet_support) 2044 phba->targetport->port_id = vport->fc_myDID; 2045 2046 /* Only Fabric ports should transition. NVME target 2047 * must complete PRLI. 2048 */ 2049 if (ndlp->nlp_type & NLP_FABRIC) { 2050 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2051 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2052 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2053 } 2054 } 2055 return ndlp->nlp_state; 2056 } 2057 2058 static uint32_t 2059 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 2060 struct lpfc_nodelist *ndlp, 2061 void *arg, 2062 uint32_t evt) 2063 { 2064 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2065 spin_lock_irq(&ndlp->lock); 2066 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2067 spin_unlock_irq(&ndlp->lock); 2068 return ndlp->nlp_state; 2069 } else { 2070 lpfc_drop_node(vport, ndlp); 2071 return NLP_STE_FREED_NODE; 2072 } 2073 } 2074 2075 static uint32_t 2076 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 2077 struct lpfc_nodelist *ndlp, 2078 void *arg, 2079 uint32_t evt) 2080 { 2081 /* Don't do anything that disrupts the RSCN unless lpfc is unloading. */ 2082 if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag)) 2083 return ndlp->nlp_state; 2084 2085 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2086 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2087 spin_lock_irq(&ndlp->lock); 2088 2089 /* If we are a target we won't immediately transition into PRLI, 2090 * so if REG_LOGIN already completed we don't need to ignore it. 2091 */ 2092 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) || 2093 !vport->phba->nvmet_support) 2094 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 2095 2096 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2097 spin_unlock_irq(&ndlp->lock); 2098 lpfc_disc_set_adisc(vport, ndlp); 2099 return ndlp->nlp_state; 2100 } 2101 2102 static uint32_t 2103 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2104 void *arg, uint32_t evt) 2105 { 2106 struct lpfc_iocbq *cmdiocb; 2107 2108 cmdiocb = (struct lpfc_iocbq *) arg; 2109 2110 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2111 return ndlp->nlp_state; 2112 } 2113 2114 static uint32_t 2115 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2116 void *arg, uint32_t evt) 2117 { 2118 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2119 2120 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2121 return ndlp->nlp_state; 2122 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2123 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2124 return ndlp->nlp_state; 2125 } 2126 2127 static uint32_t 2128 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2129 void *arg, uint32_t evt) 2130 { 2131 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2132 2133 /* Software abort outstanding PRLI before sending acc */ 2134 lpfc_els_abort(vport->phba, ndlp); 2135 2136 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2137 return ndlp->nlp_state; 2138 } 2139 2140 static uint32_t 2141 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2142 void *arg, uint32_t evt) 2143 { 2144 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2145 2146 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2147 return ndlp->nlp_state; 2148 } 2149 2150 /* This routine is envoked when we rcv a PRLO request from a nport 2151 * we are logged into. We should send back a PRLO rsp setting the 2152 * appropriate bits. 2153 * NEXT STATE = PRLI_ISSUE 2154 */ 2155 static uint32_t 2156 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2157 void *arg, uint32_t evt) 2158 { 2159 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2160 2161 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2162 return ndlp->nlp_state; 2163 } 2164 2165 static uint32_t 2166 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2167 void *arg, uint32_t evt) 2168 { 2169 struct lpfc_iocbq *cmdiocb, *rspiocb; 2170 struct lpfc_hba *phba = vport->phba; 2171 PRLI *npr; 2172 struct lpfc_nvme_prli *nvpr; 2173 void *temp_ptr; 2174 u32 ulp_status; 2175 bool acc_imode_sps = false; 2176 2177 cmdiocb = (struct lpfc_iocbq *) arg; 2178 rspiocb = cmdiocb->rsp_iocb; 2179 2180 ulp_status = get_job_ulpstatus(phba, rspiocb); 2181 2182 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 2183 * format is different so NULL the two PRLI types so that the 2184 * driver correctly gets the correct context. 2185 */ 2186 npr = NULL; 2187 nvpr = NULL; 2188 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 2189 if (cmdiocb->cmd_flag & LPFC_PRLI_FCP_REQ) 2190 npr = (PRLI *) temp_ptr; 2191 else if (cmdiocb->cmd_flag & LPFC_PRLI_NVME_REQ) 2192 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 2193 2194 if (ulp_status) { 2195 if ((vport->port_type == LPFC_NPIV_PORT) && 2196 vport->cfg_restrict_login) { 2197 goto out; 2198 } 2199 2200 /* Adjust the nlp_type accordingly if the PRLI failed */ 2201 if (npr) 2202 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2203 if (nvpr) 2204 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 2205 2206 /* We can't set the DSM state till BOTH PRLIs complete */ 2207 goto out_err; 2208 } 2209 2210 if (npr && npr->prliType == PRLI_FCP_TYPE) { 2211 lpfc_printf_vlog(vport, KERN_INFO, 2212 LOG_ELS | LOG_NODE | LOG_DISCOVERY, 2213 "6028 FCP NPR PRLI Cmpl Init %d Target %d " 2214 "EIP %d AccCode x%x\n", 2215 npr->initiatorFunc, npr->targetFunc, 2216 npr->estabImagePair, npr->acceptRspCode); 2217 2218 if (npr->acceptRspCode == PRLI_INV_SRV_PARM) { 2219 /* Strict initiators don't establish an image pair. */ 2220 if (npr->initiatorFunc && !npr->targetFunc && 2221 !npr->estabImagePair) 2222 acc_imode_sps = true; 2223 } 2224 2225 if (npr->acceptRspCode == PRLI_REQ_EXECUTED || acc_imode_sps) { 2226 if (npr->initiatorFunc) 2227 ndlp->nlp_type |= NLP_FCP_INITIATOR; 2228 if (npr->targetFunc) { 2229 ndlp->nlp_type |= NLP_FCP_TARGET; 2230 if (npr->writeXferRdyDis) 2231 ndlp->nlp_flag |= NLP_FIRSTBURST; 2232 } 2233 if (npr->Retry) 2234 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 2235 } 2236 } else if (nvpr && 2237 (bf_get_be32(prli_acc_rsp_code, nvpr) == 2238 PRLI_REQ_EXECUTED) && 2239 (bf_get_be32(prli_type_code, nvpr) == 2240 PRLI_NVME_TYPE)) { 2241 2242 /* Complete setting up the remote ndlp personality. */ 2243 if (bf_get_be32(prli_init, nvpr)) 2244 ndlp->nlp_type |= NLP_NVME_INITIATOR; 2245 2246 if (phba->nsler && bf_get_be32(prli_nsler, nvpr) && 2247 bf_get_be32(prli_conf, nvpr)) 2248 2249 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 2250 else 2251 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 2252 2253 /* Target driver cannot solicit NVME FB. */ 2254 if (bf_get_be32(prli_tgt, nvpr)) { 2255 /* Complete the nvme target roles. The transport 2256 * needs to know if the rport is capable of 2257 * discovery in addition to its role. 2258 */ 2259 ndlp->nlp_type |= NLP_NVME_TARGET; 2260 if (bf_get_be32(prli_disc, nvpr)) 2261 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 2262 2263 /* 2264 * If prli_fba is set, the Target supports FirstBurst. 2265 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 2266 * otherwise it defines the actual size supported by 2267 * the NVME Target. 2268 */ 2269 if ((bf_get_be32(prli_fba, nvpr) == 1) && 2270 (phba->cfg_nvme_enable_fb) && 2271 (!phba->nvmet_support)) { 2272 /* Both sides support FB. The target's first 2273 * burst size is a 512 byte encoded value. 2274 */ 2275 ndlp->nlp_flag |= NLP_FIRSTBURST; 2276 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2277 nvpr); 2278 2279 /* Expressed in units of 512 bytes */ 2280 if (ndlp->nvme_fb_size) 2281 ndlp->nvme_fb_size <<= 2282 LPFC_NVME_FB_SHIFT; 2283 else 2284 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2285 } 2286 } 2287 2288 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2289 "6029 NVME PRLI Cmpl w1 x%08x " 2290 "w4 x%08x w5 x%08x flag x%x, " 2291 "fcp_info x%x nlp_type x%x\n", 2292 be32_to_cpu(nvpr->word1), 2293 be32_to_cpu(nvpr->word4), 2294 be32_to_cpu(nvpr->word5), 2295 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2296 ndlp->nlp_type); 2297 } 2298 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2299 (vport->port_type == LPFC_NPIV_PORT) && 2300 vport->cfg_restrict_login) { 2301 out: 2302 spin_lock_irq(&ndlp->lock); 2303 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 2304 spin_unlock_irq(&ndlp->lock); 2305 lpfc_issue_els_logo(vport, ndlp, 0); 2306 2307 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2308 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2309 return ndlp->nlp_state; 2310 } 2311 2312 out_err: 2313 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2314 * are complete. 2315 */ 2316 if (ndlp->fc4_prli_sent == 0) { 2317 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2318 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2319 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2320 else if (ndlp->nlp_type & 2321 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2322 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2323 } else 2324 lpfc_printf_vlog(vport, 2325 KERN_INFO, LOG_ELS, 2326 "3067 PRLI's still outstanding " 2327 "on x%06x - count %d, Pend Node Mode " 2328 "transition...\n", 2329 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2330 2331 return ndlp->nlp_state; 2332 } 2333 2334 /*! lpfc_device_rm_prli_issue 2335 * 2336 * \pre 2337 * \post 2338 * \param phba 2339 * \param ndlp 2340 * \param arg 2341 * \param evt 2342 * \return uint32_t 2343 * 2344 * \b Description: 2345 * This routine is envoked when we a request to remove a nport we are in the 2346 * process of PRLIing. We should software abort outstanding prli, unreg 2347 * login, send a logout. We will change node state to UNUSED_NODE, put it 2348 * on plogi list so it can be freed when LOGO completes. 2349 * 2350 */ 2351 2352 static uint32_t 2353 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2354 void *arg, uint32_t evt) 2355 { 2356 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2357 spin_lock_irq(&ndlp->lock); 2358 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2359 spin_unlock_irq(&ndlp->lock); 2360 return ndlp->nlp_state; 2361 } else { 2362 /* software abort outstanding PLOGI */ 2363 lpfc_els_abort(vport->phba, ndlp); 2364 2365 lpfc_drop_node(vport, ndlp); 2366 return NLP_STE_FREED_NODE; 2367 } 2368 } 2369 2370 2371 /*! lpfc_device_recov_prli_issue 2372 * 2373 * \pre 2374 * \post 2375 * \param phba 2376 * \param ndlp 2377 * \param arg 2378 * \param evt 2379 * \return uint32_t 2380 * 2381 * \b Description: 2382 * The routine is envoked when the state of a device is unknown, like 2383 * during a link down. We should remove the nodelist entry from the 2384 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2385 * outstanding PRLI command, then free the node entry. 2386 */ 2387 static uint32_t 2388 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2389 struct lpfc_nodelist *ndlp, 2390 void *arg, 2391 uint32_t evt) 2392 { 2393 struct lpfc_hba *phba = vport->phba; 2394 2395 /* Don't do anything that disrupts the RSCN unless lpfc is unloading. */ 2396 if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag)) 2397 return ndlp->nlp_state; 2398 2399 /* software abort outstanding PRLI */ 2400 lpfc_els_abort(phba, ndlp); 2401 2402 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2403 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2404 spin_lock_irq(&ndlp->lock); 2405 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2406 spin_unlock_irq(&ndlp->lock); 2407 lpfc_disc_set_adisc(vport, ndlp); 2408 return ndlp->nlp_state; 2409 } 2410 2411 static uint32_t 2412 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2413 void *arg, uint32_t evt) 2414 { 2415 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2416 struct ls_rjt stat; 2417 2418 memset(&stat, 0, sizeof(struct ls_rjt)); 2419 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2420 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2421 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2422 return ndlp->nlp_state; 2423 } 2424 2425 static uint32_t 2426 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2427 void *arg, uint32_t evt) 2428 { 2429 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2430 struct ls_rjt stat; 2431 2432 memset(&stat, 0, sizeof(struct ls_rjt)); 2433 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2434 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2435 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2436 return ndlp->nlp_state; 2437 } 2438 2439 static uint32_t 2440 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2441 void *arg, uint32_t evt) 2442 { 2443 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2444 2445 spin_lock_irq(&ndlp->lock); 2446 ndlp->nlp_flag |= NLP_LOGO_ACC; 2447 spin_unlock_irq(&ndlp->lock); 2448 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2449 return ndlp->nlp_state; 2450 } 2451 2452 static uint32_t 2453 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2454 void *arg, uint32_t evt) 2455 { 2456 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2457 struct ls_rjt stat; 2458 2459 memset(&stat, 0, sizeof(struct ls_rjt)); 2460 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2461 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2462 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2463 return ndlp->nlp_state; 2464 } 2465 2466 static uint32_t 2467 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2468 void *arg, uint32_t evt) 2469 { 2470 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2471 struct ls_rjt stat; 2472 2473 memset(&stat, 0, sizeof(struct ls_rjt)); 2474 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2475 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2476 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2477 return ndlp->nlp_state; 2478 } 2479 2480 static uint32_t 2481 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2482 void *arg, uint32_t evt) 2483 { 2484 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2485 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2486 spin_lock_irq(&ndlp->lock); 2487 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2488 spin_unlock_irq(&ndlp->lock); 2489 lpfc_disc_set_adisc(vport, ndlp); 2490 return ndlp->nlp_state; 2491 } 2492 2493 static uint32_t 2494 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2495 void *arg, uint32_t evt) 2496 { 2497 /* 2498 * DevLoss has timed out and is calling for Device Remove. 2499 * In this case, abort the LOGO and cleanup the ndlp 2500 */ 2501 2502 lpfc_unreg_rpi(vport, ndlp); 2503 /* software abort outstanding PLOGI */ 2504 lpfc_els_abort(vport->phba, ndlp); 2505 lpfc_drop_node(vport, ndlp); 2506 return NLP_STE_FREED_NODE; 2507 } 2508 2509 static uint32_t 2510 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2511 struct lpfc_nodelist *ndlp, 2512 void *arg, uint32_t evt) 2513 { 2514 /* 2515 * Device Recovery events have no meaning for a node with a LOGO 2516 * outstanding. The LOGO has to complete first and handle the 2517 * node from that point. 2518 */ 2519 return ndlp->nlp_state; 2520 } 2521 2522 static uint32_t 2523 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2524 void *arg, uint32_t evt) 2525 { 2526 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2527 2528 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2529 return ndlp->nlp_state; 2530 } 2531 2532 static uint32_t 2533 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2534 void *arg, uint32_t evt) 2535 { 2536 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2537 2538 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2539 return ndlp->nlp_state; 2540 2541 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2542 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2543 return ndlp->nlp_state; 2544 } 2545 2546 static uint32_t 2547 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2548 void *arg, uint32_t evt) 2549 { 2550 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2551 2552 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2553 return ndlp->nlp_state; 2554 } 2555 2556 static uint32_t 2557 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2558 void *arg, uint32_t evt) 2559 { 2560 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2561 2562 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2563 return ndlp->nlp_state; 2564 } 2565 2566 static uint32_t 2567 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2568 void *arg, uint32_t evt) 2569 { 2570 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2571 2572 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2573 return ndlp->nlp_state; 2574 } 2575 2576 static uint32_t 2577 lpfc_device_rm_unmap_node(struct lpfc_vport *vport, 2578 struct lpfc_nodelist *ndlp, 2579 void *arg, 2580 uint32_t evt) 2581 { 2582 lpfc_drop_node(vport, ndlp); 2583 return NLP_STE_FREED_NODE; 2584 } 2585 2586 static uint32_t 2587 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2588 struct lpfc_nodelist *ndlp, 2589 void *arg, 2590 uint32_t evt) 2591 { 2592 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2593 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2594 spin_lock_irq(&ndlp->lock); 2595 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2596 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2597 spin_unlock_irq(&ndlp->lock); 2598 lpfc_disc_set_adisc(vport, ndlp); 2599 2600 return ndlp->nlp_state; 2601 } 2602 2603 static uint32_t 2604 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2605 void *arg, uint32_t evt) 2606 { 2607 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2608 2609 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2610 return ndlp->nlp_state; 2611 } 2612 2613 static uint32_t 2614 lpfc_rcv_prli_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 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2620 return ndlp->nlp_state; 2621 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2622 return ndlp->nlp_state; 2623 } 2624 2625 static uint32_t 2626 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2627 void *arg, uint32_t evt) 2628 { 2629 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2630 2631 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2632 return ndlp->nlp_state; 2633 } 2634 2635 static uint32_t 2636 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2637 struct lpfc_nodelist *ndlp, 2638 void *arg, uint32_t evt) 2639 { 2640 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2641 2642 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2643 return ndlp->nlp_state; 2644 } 2645 2646 static uint32_t 2647 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2648 void *arg, uint32_t evt) 2649 { 2650 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2651 2652 /* flush the target */ 2653 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2654 2655 /* Send PRLO_ACC */ 2656 spin_lock_irq(&ndlp->lock); 2657 ndlp->nlp_flag |= NLP_LOGO_ACC; 2658 spin_unlock_irq(&ndlp->lock); 2659 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2660 2661 /* Save ELS_CMD_PRLO as the last elscmd and then set to NPR. 2662 * lpfc_cmpl_els_logo_acc is expected to restart discovery. 2663 */ 2664 ndlp->nlp_last_elscmd = ELS_CMD_PRLO; 2665 ndlp->nlp_prev_state = ndlp->nlp_state; 2666 2667 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_ELS | LOG_DISCOVERY, 2668 "3422 DID x%06x nflag x%x lastels x%x ref cnt %u\n", 2669 ndlp->nlp_DID, ndlp->nlp_flag, 2670 ndlp->nlp_last_elscmd, 2671 kref_read(&ndlp->kref)); 2672 2673 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2674 2675 return ndlp->nlp_state; 2676 } 2677 2678 static uint32_t 2679 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2680 struct lpfc_nodelist *ndlp, 2681 void *arg, 2682 uint32_t evt) 2683 { 2684 lpfc_disc_set_adisc(vport, ndlp); 2685 2686 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2687 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2688 spin_lock_irq(&ndlp->lock); 2689 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2690 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2691 spin_unlock_irq(&ndlp->lock); 2692 return ndlp->nlp_state; 2693 } 2694 2695 static uint32_t 2696 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2697 void *arg, uint32_t evt) 2698 { 2699 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2700 2701 /* Ignore PLOGI if we have an outstanding LOGO */ 2702 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2703 return ndlp->nlp_state; 2704 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2705 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2706 spin_lock_irq(&ndlp->lock); 2707 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2708 spin_unlock_irq(&ndlp->lock); 2709 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2710 /* send PLOGI immediately, move to PLOGI issue state */ 2711 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2712 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2713 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2714 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2715 } 2716 } 2717 return ndlp->nlp_state; 2718 } 2719 2720 static uint32_t 2721 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2722 void *arg, uint32_t evt) 2723 { 2724 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2725 struct ls_rjt stat; 2726 2727 memset(&stat, 0, sizeof (struct ls_rjt)); 2728 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2729 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2730 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2731 2732 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2733 /* 2734 * ADISC nodes will be handled in regular discovery path after 2735 * receiving response from NS. 2736 * 2737 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2738 */ 2739 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2740 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2741 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2742 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2743 } 2744 } 2745 return ndlp->nlp_state; 2746 } 2747 2748 static uint32_t 2749 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2750 void *arg, uint32_t evt) 2751 { 2752 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2753 2754 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2755 return ndlp->nlp_state; 2756 } 2757 2758 static uint32_t 2759 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2760 void *arg, uint32_t evt) 2761 { 2762 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2763 2764 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2765 /* 2766 * Do not start discovery if discovery is about to start 2767 * or discovery in progress for this node. Starting discovery 2768 * here will affect the counting of discovery threads. 2769 */ 2770 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2771 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2772 /* 2773 * ADISC nodes will be handled in regular discovery path after 2774 * receiving response from NS. 2775 * 2776 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2777 */ 2778 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2779 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2780 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2781 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2782 } 2783 } 2784 return ndlp->nlp_state; 2785 } 2786 2787 static uint32_t 2788 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2789 void *arg, uint32_t evt) 2790 { 2791 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2792 2793 spin_lock_irq(&ndlp->lock); 2794 ndlp->nlp_flag |= NLP_LOGO_ACC; 2795 spin_unlock_irq(&ndlp->lock); 2796 2797 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2798 2799 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2800 mod_timer(&ndlp->nlp_delayfunc, 2801 jiffies + msecs_to_jiffies(1000 * 1)); 2802 spin_lock_irq(&ndlp->lock); 2803 ndlp->nlp_flag |= NLP_DELAY_TMO; 2804 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2805 spin_unlock_irq(&ndlp->lock); 2806 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2807 } else { 2808 spin_lock_irq(&ndlp->lock); 2809 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2810 spin_unlock_irq(&ndlp->lock); 2811 } 2812 return ndlp->nlp_state; 2813 } 2814 2815 static uint32_t 2816 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2817 void *arg, uint32_t evt) 2818 { 2819 struct lpfc_hba *phba = vport->phba; 2820 struct lpfc_iocbq *cmdiocb, *rspiocb; 2821 u32 ulp_status; 2822 2823 cmdiocb = (struct lpfc_iocbq *) arg; 2824 rspiocb = cmdiocb->rsp_iocb; 2825 2826 ulp_status = get_job_ulpstatus(phba, rspiocb); 2827 2828 if (ulp_status) 2829 return NLP_STE_FREED_NODE; 2830 2831 return ndlp->nlp_state; 2832 } 2833 2834 static uint32_t 2835 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2836 void *arg, uint32_t evt) 2837 { 2838 struct lpfc_hba *phba = vport->phba; 2839 struct lpfc_iocbq *cmdiocb, *rspiocb; 2840 u32 ulp_status; 2841 2842 cmdiocb = (struct lpfc_iocbq *) arg; 2843 rspiocb = cmdiocb->rsp_iocb; 2844 2845 ulp_status = get_job_ulpstatus(phba, rspiocb); 2846 2847 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2848 lpfc_drop_node(vport, ndlp); 2849 return NLP_STE_FREED_NODE; 2850 } 2851 return ndlp->nlp_state; 2852 } 2853 2854 static uint32_t 2855 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2856 void *arg, uint32_t evt) 2857 { 2858 /* For the fabric port just clear the fc flags. */ 2859 if (ndlp->nlp_DID == Fabric_DID) { 2860 clear_bit(FC_FABRIC, &vport->fc_flag); 2861 clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag); 2862 } 2863 lpfc_unreg_rpi(vport, ndlp); 2864 return ndlp->nlp_state; 2865 } 2866 2867 static uint32_t 2868 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2869 void *arg, uint32_t evt) 2870 { 2871 struct lpfc_hba *phba = vport->phba; 2872 struct lpfc_iocbq *cmdiocb, *rspiocb; 2873 u32 ulp_status; 2874 2875 cmdiocb = (struct lpfc_iocbq *) arg; 2876 rspiocb = cmdiocb->rsp_iocb; 2877 2878 ulp_status = get_job_ulpstatus(phba, rspiocb); 2879 2880 if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2881 lpfc_drop_node(vport, ndlp); 2882 return NLP_STE_FREED_NODE; 2883 } 2884 return ndlp->nlp_state; 2885 } 2886 2887 static uint32_t 2888 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2889 struct lpfc_nodelist *ndlp, 2890 void *arg, uint32_t evt) 2891 { 2892 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2893 MAILBOX_t *mb = &pmb->u.mb; 2894 2895 if (!mb->mbxStatus) { 2896 /* SLI4 ports have preallocated logical rpis. */ 2897 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2898 ndlp->nlp_rpi = mb->un.varWords[0]; 2899 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2900 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 2901 lpfc_unreg_rpi(vport, ndlp); 2902 } 2903 } else { 2904 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2905 lpfc_drop_node(vport, ndlp); 2906 return NLP_STE_FREED_NODE; 2907 } 2908 } 2909 return ndlp->nlp_state; 2910 } 2911 2912 static uint32_t 2913 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2914 void *arg, uint32_t evt) 2915 { 2916 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2917 spin_lock_irq(&ndlp->lock); 2918 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2919 spin_unlock_irq(&ndlp->lock); 2920 return ndlp->nlp_state; 2921 } 2922 lpfc_drop_node(vport, ndlp); 2923 return NLP_STE_FREED_NODE; 2924 } 2925 2926 static uint32_t 2927 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2928 void *arg, uint32_t evt) 2929 { 2930 /* Don't do anything that disrupts the RSCN unless lpfc is unloading. */ 2931 if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag)) 2932 return ndlp->nlp_state; 2933 2934 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2935 spin_lock_irq(&ndlp->lock); 2936 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2937 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2938 spin_unlock_irq(&ndlp->lock); 2939 return ndlp->nlp_state; 2940 } 2941 2942 2943 /* This next section defines the NPort Discovery State Machine */ 2944 2945 /* There are 4 different double linked lists nodelist entries can reside on. 2946 * The plogi list and adisc list are used when Link Up discovery or RSCN 2947 * processing is needed. Each list holds the nodes that we will send PLOGI 2948 * or ADISC on. These lists will keep track of what nodes will be effected 2949 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2950 * The unmapped_list will contain all nodes that we have successfully logged 2951 * into at the Fibre Channel level. The mapped_list will contain all nodes 2952 * that are mapped FCP targets. 2953 */ 2954 /* 2955 * The bind list is a list of undiscovered (potentially non-existent) nodes 2956 * that we have saved binding information on. This information is used when 2957 * nodes transition from the unmapped to the mapped list. 2958 */ 2959 /* For UNUSED_NODE state, the node has just been allocated . 2960 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2961 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2962 * and put on the unmapped list. For ADISC processing, the node is taken off 2963 * the ADISC list and placed on either the mapped or unmapped list (depending 2964 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2965 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2966 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2967 * node, the node is taken off the unmapped list. The binding list is checked 2968 * for a valid binding, or a binding is automatically assigned. If binding 2969 * assignment is unsuccessful, the node is left on the unmapped list. If 2970 * binding assignment is successful, the associated binding list entry (if 2971 * any) is removed, and the node is placed on the mapped list. 2972 */ 2973 /* 2974 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2975 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2976 * expire, all effected nodes will receive a DEVICE_RM event. 2977 */ 2978 /* 2979 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2980 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2981 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2982 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2983 * we will first process the ADISC list. 32 entries are processed initially and 2984 * ADISC is initited for each one. Completions / Events for each node are 2985 * funnelled thru the state machine. As each node finishes ADISC processing, it 2986 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2987 * waiting, and the ADISC list count is identically 0, then we are done. For 2988 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2989 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2990 * list. 32 entries are processed initially and PLOGI is initited for each one. 2991 * Completions / Events for each node are funnelled thru the state machine. As 2992 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2993 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2994 * indentically 0, then we are done. We have now completed discovery / RSCN 2995 * handling. Upon completion, ALL nodes should be on either the mapped or 2996 * unmapped lists. 2997 */ 2998 2999 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 3000 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 3001 /* Action routine Event Current State */ 3002 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 3003 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 3004 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 3005 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 3006 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 3007 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 3008 lpfc_disc_illegal, /* CMPL_PLOGI */ 3009 lpfc_disc_illegal, /* CMPL_PRLI */ 3010 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 3011 lpfc_disc_illegal, /* CMPL_ADISC */ 3012 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3013 lpfc_device_rm_unused_node, /* DEVICE_RM */ 3014 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 3015 3016 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 3017 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 3018 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 3019 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 3020 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 3021 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 3022 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 3023 lpfc_disc_illegal, /* CMPL_PRLI */ 3024 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 3025 lpfc_disc_illegal, /* CMPL_ADISC */ 3026 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 3027 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 3028 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 3029 3030 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 3031 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 3032 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 3033 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 3034 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 3035 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 3036 lpfc_disc_illegal, /* CMPL_PLOGI */ 3037 lpfc_disc_illegal, /* CMPL_PRLI */ 3038 lpfc_disc_illegal, /* CMPL_LOGO */ 3039 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 3040 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3041 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 3042 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 3043 3044 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 3045 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 3046 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 3047 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 3048 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 3049 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 3050 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3051 lpfc_disc_illegal, /* CMPL_PRLI */ 3052 lpfc_disc_illegal, /* CMPL_LOGO */ 3053 lpfc_disc_illegal, /* CMPL_ADISC */ 3054 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 3055 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 3056 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 3057 3058 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 3059 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 3060 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 3061 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 3062 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 3063 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 3064 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3065 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 3066 lpfc_disc_illegal, /* CMPL_LOGO */ 3067 lpfc_disc_illegal, /* CMPL_ADISC */ 3068 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3069 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 3070 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 3071 3072 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 3073 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 3074 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 3075 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 3076 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 3077 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 3078 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3079 lpfc_disc_illegal, /* CMPL_PRLI */ 3080 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 3081 lpfc_disc_illegal, /* CMPL_ADISC */ 3082 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3083 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 3084 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 3085 3086 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 3087 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 3088 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 3089 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 3090 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 3091 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 3092 lpfc_disc_illegal, /* CMPL_PLOGI */ 3093 lpfc_disc_illegal, /* CMPL_PRLI */ 3094 lpfc_disc_illegal, /* CMPL_LOGO */ 3095 lpfc_disc_illegal, /* CMPL_ADISC */ 3096 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3097 lpfc_device_rm_unmap_node, /* DEVICE_RM */ 3098 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 3099 3100 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 3101 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 3102 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 3103 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 3104 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 3105 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 3106 lpfc_disc_illegal, /* CMPL_PLOGI */ 3107 lpfc_disc_illegal, /* CMPL_PRLI */ 3108 lpfc_disc_illegal, /* CMPL_LOGO */ 3109 lpfc_disc_illegal, /* CMPL_ADISC */ 3110 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3111 lpfc_disc_illegal, /* DEVICE_RM */ 3112 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 3113 3114 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 3115 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 3116 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 3117 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 3118 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 3119 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 3120 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 3121 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 3122 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 3123 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 3124 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 3125 lpfc_device_rm_npr_node, /* DEVICE_RM */ 3126 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 3127 }; 3128 3129 int 3130 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3131 void *arg, uint32_t evt) 3132 { 3133 uint32_t cur_state, rc; 3134 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 3135 uint32_t); 3136 uint32_t got_ndlp = 0; 3137 uint32_t data1; 3138 3139 if (lpfc_nlp_get(ndlp)) 3140 got_ndlp = 1; 3141 3142 cur_state = ndlp->nlp_state; 3143 3144 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3145 ((uint32_t)ndlp->nlp_type)); 3146 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 3147 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3148 "0211 DSM in event x%x on NPort x%x in " 3149 "state %d rpi x%x Data: x%x x%x\n", 3150 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, 3151 ndlp->nlp_flag, data1); 3152 3153 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3154 "DSM in: evt:%d ste:%d did:x%x", 3155 evt, cur_state, ndlp->nlp_DID); 3156 3157 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 3158 rc = (func) (vport, ndlp, arg, evt); 3159 3160 /* DSM out state <rc> on NPort <nlp_DID> */ 3161 if (got_ndlp) { 3162 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3163 ((uint32_t)ndlp->nlp_type)); 3164 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3165 "0212 DSM out state %d on NPort x%x " 3166 "rpi x%x Data: x%x x%x\n", 3167 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag, 3168 data1); 3169 3170 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3171 "DSM out: ste:%d did:x%x flg:x%x", 3172 rc, ndlp->nlp_DID, ndlp->nlp_flag); 3173 /* Decrement the ndlp reference count held for this function */ 3174 lpfc_nlp_put(ndlp); 3175 } else { 3176 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3177 "0213 DSM out state %d on NPort free\n", rc); 3178 3179 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3180 "DSM out: ste:%d did:x%x flg:x%x", 3181 rc, 0, 0); 3182 } 3183 3184 return rc; 3185 } 3186