1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2025 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 68 /* Compare the ADISC rsp WWNN / WWPN matches our internal node 69 * table entry for that node. 70 */ 71 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) 72 return 0; 73 74 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) 75 return 0; 76 77 /* we match, return success */ 78 return 1; 79 } 80 81 int 82 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 83 struct serv_parm *sp, uint32_t class, int flogi) 84 { 85 volatile struct serv_parm *hsp = &vport->fc_sparam; 86 uint16_t hsp_value, ssp_value = 0; 87 88 /* 89 * The receive data field size and buffer-to-buffer receive data field 90 * size entries are 16 bits but are represented as two 8-bit fields in 91 * the driver data structure to account for rsvd bits and other control 92 * bits. Reconstruct and compare the fields as a 16-bit values before 93 * correcting the byte values. 94 */ 95 if (sp->cls1.classValid) { 96 if (!flogi) { 97 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) | 98 hsp->cls1.rcvDataSizeLsb); 99 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) | 100 sp->cls1.rcvDataSizeLsb); 101 if (!ssp_value) 102 goto bad_service_param; 103 if (ssp_value > hsp_value) { 104 sp->cls1.rcvDataSizeLsb = 105 hsp->cls1.rcvDataSizeLsb; 106 sp->cls1.rcvDataSizeMsb = 107 hsp->cls1.rcvDataSizeMsb; 108 } 109 } 110 } else if (class == CLASS1) 111 goto bad_service_param; 112 if (sp->cls2.classValid) { 113 if (!flogi) { 114 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) | 115 hsp->cls2.rcvDataSizeLsb); 116 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) | 117 sp->cls2.rcvDataSizeLsb); 118 if (!ssp_value) 119 goto bad_service_param; 120 if (ssp_value > hsp_value) { 121 sp->cls2.rcvDataSizeLsb = 122 hsp->cls2.rcvDataSizeLsb; 123 sp->cls2.rcvDataSizeMsb = 124 hsp->cls2.rcvDataSizeMsb; 125 } 126 } 127 } else if (class == CLASS2) 128 goto bad_service_param; 129 if (sp->cls3.classValid) { 130 if (!flogi) { 131 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) | 132 hsp->cls3.rcvDataSizeLsb); 133 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) | 134 sp->cls3.rcvDataSizeLsb); 135 if (!ssp_value) 136 goto bad_service_param; 137 if (ssp_value > hsp_value) { 138 sp->cls3.rcvDataSizeLsb = 139 hsp->cls3.rcvDataSizeLsb; 140 sp->cls3.rcvDataSizeMsb = 141 hsp->cls3.rcvDataSizeMsb; 142 } 143 } 144 } else if (class == CLASS3) 145 goto bad_service_param; 146 147 /* 148 * Preserve the upper four bits of the MSB from the PLOGI response. 149 * These bits contain the Buffer-to-Buffer State Change Number 150 * from the target and need to be passed to the FW. 151 */ 152 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; 153 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; 154 if (ssp_value > hsp_value) { 155 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; 156 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | 157 (hsp->cmn.bbRcvSizeMsb & 0x0F); 158 } 159 160 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); 161 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); 162 return 1; 163 bad_service_param: 164 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 165 "0207 Device %x " 166 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 167 "invalid service parameters. Ignoring device.\n", 168 ndlp->nlp_DID, 169 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 170 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 171 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 172 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 173 return 0; 174 } 175 176 static void * 177 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 178 struct lpfc_iocbq *rspiocb) 179 { 180 struct lpfc_dmabuf *pcmd, *prsp; 181 uint32_t *lp; 182 void *ptr = NULL; 183 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 184 185 pcmd = cmdiocb->cmd_dmabuf; 186 187 /* For lpfc_els_abort, cmd_dmabuf could be zero'ed to delay 188 * freeing associated memory till after ABTS completes. 189 */ 190 if (pcmd) { 191 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, 192 list); 193 if (prsp) { 194 lp = (uint32_t *) prsp->virt; 195 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); 196 } 197 } else { 198 /* Force ulp_status error since we are returning NULL ptr */ 199 if (!(ulp_status)) { 200 if (phba->sli_rev == LPFC_SLI_REV4) { 201 bf_set(lpfc_wcqe_c_status, &rspiocb->wcqe_cmpl, 202 IOSTAT_LOCAL_REJECT); 203 rspiocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED; 204 } else { 205 rspiocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; 206 rspiocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED; 207 } 208 } 209 ptr = NULL; 210 } 211 return ptr; 212 } 213 214 215 216 /* 217 * Free resources / clean up outstanding I/Os 218 * associated with a LPFC_NODELIST entry. This 219 * routine effectively results in a "software abort". 220 */ 221 void 222 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 223 { 224 LIST_HEAD(abort_list); 225 LIST_HEAD(drv_cmpl_list); 226 struct lpfc_sli_ring *pring; 227 struct lpfc_iocbq *iocb, *next_iocb; 228 int retval = 0; 229 230 pring = lpfc_phba_elsring(phba); 231 232 /* In case of error recovery path, we might have a NULL pring here */ 233 if (unlikely(!pring)) 234 return; 235 236 /* Abort outstanding I/O on NPort <nlp_DID> */ 237 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, 238 "2819 Abort outstanding I/O on NPort x%x " 239 "Data: x%lx x%x x%x\n", 240 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 241 ndlp->nlp_rpi); 242 /* Clean up all fabric IOs first.*/ 243 lpfc_fabric_abort_nport(ndlp); 244 245 /* 246 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list 247 * of all ELS IOs that need an ABTS. The IOs need to stay on the 248 * txcmplq so that the abort operation completes them successfully. 249 */ 250 spin_lock_irq(&phba->hbalock); 251 if (phba->sli_rev == LPFC_SLI_REV4) 252 spin_lock(&pring->ring_lock); 253 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 254 /* Add to abort_list on on NDLP match. */ 255 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 256 list_add_tail(&iocb->dlist, &abort_list); 257 } 258 if (phba->sli_rev == LPFC_SLI_REV4) 259 spin_unlock(&pring->ring_lock); 260 spin_unlock_irq(&phba->hbalock); 261 262 /* Abort the targeted IOs and remove them from the abort list. */ 263 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) { 264 spin_lock_irq(&phba->hbalock); 265 list_del_init(&iocb->dlist); 266 retval = lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL); 267 spin_unlock_irq(&phba->hbalock); 268 269 if (retval && test_bit(FC_UNLOADING, &phba->pport->load_flag)) { 270 list_del_init(&iocb->list); 271 list_add_tail(&iocb->list, &drv_cmpl_list); 272 } 273 } 274 275 lpfc_sli_cancel_iocbs(phba, &drv_cmpl_list, IOSTAT_LOCAL_REJECT, 276 IOERR_SLI_ABORTED); 277 278 /* Make sure HBA is alive */ 279 lpfc_issue_hb_tmo(phba); 280 281 INIT_LIST_HEAD(&abort_list); 282 283 /* Now process the txq */ 284 spin_lock_irq(&phba->hbalock); 285 if (phba->sli_rev == LPFC_SLI_REV4) 286 spin_lock(&pring->ring_lock); 287 288 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 289 /* Check to see if iocb matches the nport we are looking for */ 290 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 291 list_del_init(&iocb->list); 292 list_add_tail(&iocb->list, &abort_list); 293 } 294 } 295 296 if (phba->sli_rev == LPFC_SLI_REV4) 297 spin_unlock(&pring->ring_lock); 298 spin_unlock_irq(&phba->hbalock); 299 300 /* Cancel all the IOCBs from the completions list */ 301 lpfc_sli_cancel_iocbs(phba, &abort_list, 302 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 303 304 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 305 } 306 307 /* lpfc_defer_plogi_acc - Issue PLOGI ACC after reg_login completes 308 * @phba: pointer to lpfc hba data structure. 309 * @login_mbox: pointer to REG_RPI mailbox object 310 * 311 * The ACC for a rcv'ed PLOGI is deferred until AFTER the REG_RPI completes 312 */ 313 static void 314 lpfc_defer_plogi_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *login_mbox) 315 { 316 struct lpfc_iocbq *save_iocb; 317 struct lpfc_nodelist *ndlp; 318 MAILBOX_t *mb = &login_mbox->u.mb; 319 320 int rc; 321 322 ndlp = login_mbox->ctx_ndlp; 323 save_iocb = login_mbox->ctx_u.save_iocb; 324 325 if (mb->mbxStatus == MBX_SUCCESS) { 326 /* Now that REG_RPI completed successfully, 327 * we can now proceed with sending the PLOGI ACC. 328 */ 329 if (test_bit(FC_PT2PT, &ndlp->vport->fc_flag)) { 330 rc = lpfc_els_rsp_acc(login_mbox->vport, ELS_CMD_PLOGI, 331 save_iocb, ndlp, login_mbox); 332 } else { 333 rc = lpfc_els_rsp_acc(login_mbox->vport, ELS_CMD_PLOGI, 334 save_iocb, ndlp, NULL); 335 } 336 337 if (rc) { 338 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 339 "4576 PLOGI ACC fails pt2pt discovery: " 340 "DID %x Data: %x\n", ndlp->nlp_DID, rc); 341 } 342 } 343 344 /* If this is a fabric topology, complete the reg_rpi and prli now. 345 * For Pt2Pt, the reg_rpi and PRLI are deferred until after the LS_ACC 346 * completes. This ensures, in Pt2Pt, that the PLOGI LS_ACC is sent 347 * before the PRLI. 348 */ 349 if (!test_bit(FC_PT2PT, &ndlp->vport->fc_flag)) { 350 /* Now process the REG_RPI cmpl */ 351 lpfc_mbx_cmpl_reg_login(phba, login_mbox); 352 clear_bit(NLP_ACC_REGLOGIN, &ndlp->nlp_flag); 353 } 354 kfree(save_iocb); 355 } 356 357 static int 358 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 359 struct lpfc_iocbq *cmdiocb) 360 { 361 struct lpfc_hba *phba = vport->phba; 362 struct lpfc_dmabuf *pcmd; 363 uint64_t nlp_portwwn = 0; 364 uint32_t *lp; 365 union lpfc_wqe128 *wqe; 366 IOCB_t *icmd; 367 struct serv_parm *sp; 368 uint32_t ed_tov; 369 LPFC_MBOXQ_t *link_mbox; 370 LPFC_MBOXQ_t *login_mbox; 371 struct lpfc_iocbq *save_iocb; 372 struct ls_rjt stat; 373 uint32_t vid, flag; 374 int rc; 375 u32 remote_did; 376 377 memset(&stat, 0, sizeof (struct ls_rjt)); 378 pcmd = cmdiocb->cmd_dmabuf; 379 lp = (uint32_t *) pcmd->virt; 380 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 381 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 382 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 383 "0140 PLOGI Reject: invalid pname\n"); 384 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 385 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 386 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 387 NULL); 388 return 0; 389 } 390 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 391 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 392 "0141 PLOGI Reject: invalid nname\n"); 393 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 394 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 395 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 396 NULL); 397 return 0; 398 } 399 400 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 401 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 402 /* Reject this request because invalid parameters */ 403 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 404 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 405 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 406 NULL); 407 return 0; 408 } 409 410 if (phba->sli_rev == LPFC_SLI_REV4) 411 wqe = &cmdiocb->wqe; 412 else 413 icmd = &cmdiocb->iocb; 414 415 /* PLOGI chkparm OK */ 416 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 417 "0114 PLOGI chkparm OK Data: x%x x%x x%lx " 418 "x%x x%x x%lx\n", 419 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 420 ndlp->nlp_rpi, vport->port_state, 421 vport->fc_flag); 422 423 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 424 ndlp->nlp_fcp_info |= CLASS2; 425 else 426 ndlp->nlp_fcp_info |= CLASS3; 427 428 ndlp->nlp_class_sup = 0; 429 if (sp->cls1.classValid) 430 ndlp->nlp_class_sup |= FC_COS_CLASS1; 431 if (sp->cls2.classValid) 432 ndlp->nlp_class_sup |= FC_COS_CLASS2; 433 if (sp->cls3.classValid) 434 ndlp->nlp_class_sup |= FC_COS_CLASS3; 435 if (sp->cls4.classValid) 436 ndlp->nlp_class_sup |= FC_COS_CLASS4; 437 ndlp->nlp_maxframe = 438 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 439 /* if already logged in, do implicit logout */ 440 switch (ndlp->nlp_state) { 441 case NLP_STE_NPR_NODE: 442 if (!test_bit(NLP_NPR_ADISC, &ndlp->nlp_flag)) 443 break; 444 fallthrough; 445 case NLP_STE_REG_LOGIN_ISSUE: 446 case NLP_STE_PRLI_ISSUE: 447 case NLP_STE_UNMAPPED_NODE: 448 case NLP_STE_MAPPED_NODE: 449 /* For initiators, lpfc_plogi_confirm_nport skips fabric did. 450 * For target mode, execute implicit logo. 451 * Fabric nodes go into NPR. 452 */ 453 if (!(ndlp->nlp_type & NLP_FABRIC) && 454 !(phba->nvmet_support)) { 455 /* Clear ndlp info, since follow up PRLI may have 456 * updated ndlp information 457 */ 458 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 459 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 460 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 461 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 462 clear_bit(NLP_FIRSTBURST, &ndlp->nlp_flag); 463 464 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 465 ndlp, NULL); 466 return 1; 467 } 468 if (nlp_portwwn != 0 && 469 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 470 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 471 "0143 PLOGI recv'd from DID: x%x " 472 "WWPN changed: old %llx new %llx\n", 473 ndlp->nlp_DID, 474 (unsigned long long)nlp_portwwn, 475 (unsigned long long) 476 wwn_to_u64(sp->portName.u.wwn)); 477 478 /* Notify transport of connectivity loss to trigger cleanup. */ 479 if (phba->nvmet_support && 480 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 481 lpfc_nvmet_invalidate_host(phba, ndlp); 482 483 ndlp->nlp_prev_state = ndlp->nlp_state; 484 /* rport needs to be unregistered first */ 485 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 486 break; 487 } 488 489 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 490 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 491 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 492 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 493 clear_bit(NLP_FIRSTBURST, &ndlp->nlp_flag); 494 495 login_mbox = NULL; 496 link_mbox = NULL; 497 save_iocb = NULL; 498 499 /* Check for Nport to NPort pt2pt protocol */ 500 if (test_bit(FC_PT2PT, &vport->fc_flag) && 501 !test_bit(FC_PT2PT_PLOGI, &vport->fc_flag)) { 502 /* rcv'ed PLOGI decides what our NPortId will be */ 503 if (phba->sli_rev == LPFC_SLI_REV4) { 504 vport->fc_myDID = bf_get(els_rsp64_sid, 505 &cmdiocb->wqe.xmit_els_rsp); 506 } else { 507 vport->fc_myDID = icmd->un.rcvels.parmRo; 508 } 509 510 /* If there is an outstanding FLOGI, abort it now. 511 * The remote NPort is not going to ACC our FLOGI 512 * if its already issuing a PLOGI for pt2pt mode. 513 * This indicates our FLOGI was dropped; however, we 514 * must have ACCed the remote NPorts FLOGI to us 515 * to make it here. 516 */ 517 if (test_bit(HBA_FLOGI_OUTSTANDING, &phba->hba_flag)) 518 lpfc_els_abort_flogi(phba); 519 520 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 521 if (sp->cmn.edtovResolution) { 522 /* E_D_TOV ticks are in nanoseconds */ 523 ed_tov = (phba->fc_edtov + 999999) / 1000000; 524 } 525 526 /* 527 * For pt-to-pt, use the larger EDTOV 528 * RATOV = 2 * EDTOV 529 */ 530 if (ed_tov > phba->fc_edtov) 531 phba->fc_edtov = ed_tov; 532 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 533 534 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 535 536 /* Issue CONFIG_LINK for SLI3 or REG_VFI for SLI4, 537 * to account for updated TOV's / parameters 538 */ 539 if (phba->sli_rev == LPFC_SLI_REV4) 540 lpfc_issue_reg_vfi(vport); 541 else { 542 link_mbox = mempool_alloc(phba->mbox_mem_pool, 543 GFP_KERNEL); 544 if (!link_mbox) 545 goto out; 546 lpfc_config_link(phba, link_mbox); 547 link_mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 548 link_mbox->vport = vport; 549 550 /* The default completion handling for CONFIG_LINK 551 * does not require the ndlp so no reference is needed. 552 */ 553 link_mbox->ctx_ndlp = ndlp; 554 555 rc = lpfc_sli_issue_mbox(phba, link_mbox, MBX_NOWAIT); 556 if (rc == MBX_NOT_FINISHED) { 557 mempool_free(link_mbox, phba->mbox_mem_pool); 558 goto out; 559 } 560 } 561 562 lpfc_can_disctmo(vport); 563 } 564 565 clear_bit(NLP_SUPPRESS_RSP, &ndlp->nlp_flag); 566 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 567 sp->cmn.valid_vendor_ver_level) { 568 vid = be32_to_cpu(sp->un.vv.vid); 569 flag = be32_to_cpu(sp->un.vv.flags); 570 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) 571 set_bit(NLP_SUPPRESS_RSP, &ndlp->nlp_flag); 572 } 573 574 login_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 575 if (!login_mbox) 576 goto out; 577 578 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL); 579 if (!save_iocb) 580 goto out; 581 582 /* Save info from cmd IOCB to be used in rsp after all mbox completes */ 583 memcpy((uint8_t *)save_iocb, (uint8_t *)cmdiocb, 584 sizeof(struct lpfc_iocbq)); 585 586 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 587 if (phba->sli_rev == LPFC_SLI_REV4) 588 lpfc_unreg_rpi(vport, ndlp); 589 590 /* Issue REG_LOGIN first, before ACCing the PLOGI, thus we will 591 * always be deferring the ACC. 592 */ 593 if (phba->sli_rev == LPFC_SLI_REV4) 594 remote_did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest); 595 else 596 remote_did = icmd->un.rcvels.remoteID; 597 rc = lpfc_reg_rpi(phba, vport->vpi, remote_did, 598 (uint8_t *)sp, login_mbox, ndlp->nlp_rpi); 599 if (rc) 600 goto out; 601 602 login_mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 603 login_mbox->vport = vport; 604 605 /* 606 * If there is an outstanding PLOGI issued, abort it before 607 * sending ACC rsp for received PLOGI. If pending plogi 608 * is not canceled here, the plogi will be rejected by 609 * remote port and will be retried. On a configuration with 610 * single discovery thread, this will cause a huge delay in 611 * discovery. Also this will cause multiple state machines 612 * running in parallel for this node. 613 * This only applies to a fabric environment. 614 */ 615 if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) && 616 test_bit(FC_FABRIC, &vport->fc_flag)) { 617 /* software abort outstanding PLOGI */ 618 lpfc_els_abort(phba, ndlp); 619 } 620 621 if ((vport->port_type == LPFC_NPIV_PORT && 622 vport->cfg_restrict_login)) { 623 624 /* no deferred ACC */ 625 kfree(save_iocb); 626 627 /* This is an NPIV SLI4 instance that does not need to register 628 * a default RPI. 629 */ 630 if (phba->sli_rev == LPFC_SLI_REV4) { 631 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 632 MBOX_THD_UNLOCKED); 633 login_mbox = NULL; 634 } else { 635 /* In order to preserve RPIs, we want to cleanup 636 * the default RPI the firmware created to rcv 637 * this ELS request. The only way to do this is 638 * to register, then unregister the RPI. 639 */ 640 set_bit(NLP_RM_DFLT_RPI, &ndlp->nlp_flag); 641 set_bit(NLP_ACC_REGLOGIN, &ndlp->nlp_flag); 642 set_bit(NLP_RCV_PLOGI, &ndlp->nlp_flag); 643 } 644 645 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 646 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 647 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 648 ndlp, login_mbox); 649 if (rc && login_mbox) 650 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 651 MBOX_THD_UNLOCKED); 652 return 1; 653 } 654 655 /* So the order here should be: 656 * SLI3 pt2pt 657 * Issue CONFIG_LINK mbox 658 * CONFIG_LINK cmpl 659 * SLI4 pt2pt 660 * Issue REG_VFI mbox 661 * REG_VFI cmpl 662 * SLI4 663 * Issue UNREG RPI mbx 664 * UNREG RPI cmpl 665 * Issue REG_RPI mbox 666 * REG RPI cmpl 667 * Issue PLOGI ACC 668 * PLOGI ACC cmpl 669 */ 670 login_mbox->mbox_cmpl = lpfc_defer_plogi_acc; 671 login_mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 672 if (!login_mbox->ctx_ndlp) 673 goto out; 674 675 login_mbox->ctx_u.save_iocb = save_iocb; /* For PLOGI ACC */ 676 677 set_bit(NLP_ACC_REGLOGIN, &ndlp->nlp_flag); 678 set_bit(NLP_RCV_PLOGI, &ndlp->nlp_flag); 679 680 /* Start the ball rolling by issuing REG_LOGIN here */ 681 rc = lpfc_sli_issue_mbox(phba, login_mbox, MBX_NOWAIT); 682 if (rc == MBX_NOT_FINISHED) { 683 lpfc_nlp_put(ndlp); 684 goto out; 685 } 686 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); 687 688 return 1; 689 out: 690 kfree(save_iocb); 691 if (login_mbox) 692 mempool_free(login_mbox, phba->mbox_mem_pool); 693 694 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 695 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 696 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 697 return 0; 698 } 699 700 /** 701 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 702 * @phba: pointer to lpfc hba data structure. 703 * @mboxq: pointer to mailbox object 704 * 705 * This routine is invoked to issue a completion to a rcv'ed 706 * ADISC or PDISC after the paused RPI has been resumed. 707 **/ 708 static void 709 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 710 { 711 struct lpfc_vport *vport; 712 struct lpfc_iocbq *elsiocb; 713 struct lpfc_nodelist *ndlp; 714 uint32_t cmd; 715 716 elsiocb = mboxq->ctx_u.save_iocb; 717 ndlp = mboxq->ctx_ndlp; 718 vport = mboxq->vport; 719 cmd = elsiocb->drvrTimeout; 720 721 if (cmd == ELS_CMD_ADISC) { 722 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 723 } else { 724 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 725 ndlp, NULL); 726 } 727 728 /* This nlp_put pairs with lpfc_sli4_resume_rpi */ 729 lpfc_nlp_put(ndlp); 730 731 kfree(elsiocb); 732 mempool_free(mboxq, phba->mbox_mem_pool); 733 } 734 735 static int 736 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 737 struct lpfc_iocbq *cmdiocb) 738 { 739 struct lpfc_hba *phba = vport->phba; 740 struct lpfc_iocbq *elsiocb; 741 struct lpfc_dmabuf *pcmd; 742 struct serv_parm *sp; 743 struct lpfc_name *pnn, *ppn; 744 struct ls_rjt stat; 745 ADISC *ap; 746 uint32_t *lp; 747 uint32_t cmd; 748 int rc; 749 750 pcmd = cmdiocb->cmd_dmabuf; 751 lp = (uint32_t *) pcmd->virt; 752 753 cmd = *lp++; 754 if (cmd == ELS_CMD_ADISC) { 755 ap = (ADISC *) lp; 756 pnn = (struct lpfc_name *) & ap->nodeName; 757 ppn = (struct lpfc_name *) & ap->portName; 758 } else { 759 sp = (struct serv_parm *) lp; 760 pnn = (struct lpfc_name *) & sp->nodeName; 761 ppn = (struct lpfc_name *) & sp->portName; 762 } 763 764 if (get_job_ulpstatus(phba, cmdiocb) == 0 && 765 lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 766 767 /* 768 * As soon as we send ACC, the remote NPort can 769 * start sending us data. Thus, for SLI4 we must 770 * resume the RPI before the ACC goes out. 771 */ 772 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 773 /* Don't resume an unregistered RPI - unnecessary 774 * mailbox. Just send the ACC when the RPI is not 775 * registered. 776 */ 777 if (test_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag)) { 778 elsiocb = kmalloc(sizeof(*elsiocb), GFP_KERNEL); 779 if (elsiocb) { 780 /* Save info from cmd IOCB used in 781 * rsp 782 */ 783 memcpy(elsiocb, cmdiocb, 784 sizeof(*elsiocb)); 785 786 elsiocb->drvrTimeout = cmd; 787 788 rc = lpfc_sli4_resume_rpi(ndlp, 789 lpfc_mbx_cmpl_resume_rpi, 790 elsiocb); 791 if (rc) 792 kfree(elsiocb); 793 794 goto out; 795 } 796 } 797 } 798 799 if (cmd == ELS_CMD_ADISC) { 800 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 801 } else { 802 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 803 ndlp, NULL); 804 } 805 out: 806 /* If we are authenticated, move to the proper state. 807 * It is possible an ADISC arrived and the remote nport 808 * is already in MAPPED or UNMAPPED state. Catch this 809 * condition and don't set the nlp_state again because 810 * it causes an unnecessary transport unregister/register. 811 * 812 * Nodes marked for ADISC will move MAPPED or UNMAPPED state 813 * after issuing ADISC 814 */ 815 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 816 if ((ndlp->nlp_state != NLP_STE_MAPPED_NODE) && 817 !test_bit(NLP_NPR_ADISC, &ndlp->nlp_flag)) 818 lpfc_nlp_set_state(vport, ndlp, 819 NLP_STE_MAPPED_NODE); 820 } 821 822 return 1; 823 } 824 /* Reject this request because invalid parameters */ 825 stat.un.b.lsRjtRsvd0 = 0; 826 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 827 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 828 stat.un.b.vendorUnique = 0; 829 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 830 831 /* 1 sec timeout */ 832 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 833 834 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 835 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 836 ndlp->nlp_prev_state = ndlp->nlp_state; 837 return 0; 838 } 839 840 static int 841 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 842 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 843 { 844 struct lpfc_hba *phba = vport->phba; 845 struct lpfc_vport **vports; 846 int i, active_vlink_present = 0 ; 847 848 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 849 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 850 * PLOGIs during LOGO storms from a device. 851 */ 852 set_bit(NLP_LOGO_ACC, &ndlp->nlp_flag); 853 if (els_cmd == ELS_CMD_PRLO) 854 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 855 else 856 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 857 858 /* This clause allows the initiator to ACC the LOGO back to the 859 * Fabric Domain Controller. It does deliberately skip all other 860 * steps because some fabrics send RDP requests after logging out 861 * from the initiator. 862 */ 863 if (ndlp->nlp_type & NLP_FABRIC && 864 ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK)) 865 return 0; 866 867 /* Notify transport of connectivity loss to trigger cleanup. */ 868 if (phba->nvmet_support && 869 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 870 lpfc_nvmet_invalidate_host(phba, ndlp); 871 872 if (ndlp->nlp_DID == Fabric_DID) { 873 if (vport->port_state <= LPFC_FDISC || 874 test_bit(FC_PT2PT, &vport->fc_flag)) 875 goto out; 876 lpfc_linkdown_port(vport); 877 set_bit(FC_VPORT_LOGO_RCVD, &vport->fc_flag); 878 vports = lpfc_create_vport_work_array(phba); 879 if (vports) { 880 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 881 i++) { 882 if (!test_bit(FC_VPORT_LOGO_RCVD, 883 &vports[i]->fc_flag) && 884 vports[i]->port_state > LPFC_FDISC) { 885 active_vlink_present = 1; 886 break; 887 } 888 } 889 lpfc_destroy_vport_work_array(phba, vports); 890 } 891 892 /* 893 * Don't re-instantiate if vport is marked for deletion. 894 * If we are here first then vport_delete is going to wait 895 * for discovery to complete. 896 */ 897 if (!test_bit(FC_UNLOADING, &vport->load_flag) && 898 active_vlink_present) { 899 /* 900 * If there are other active VLinks present, 901 * re-instantiate the Vlink using FDISC. 902 */ 903 mod_timer(&ndlp->nlp_delayfunc, 904 jiffies + msecs_to_jiffies(1000)); 905 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 906 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 907 vport->port_state = LPFC_FDISC; 908 } else { 909 clear_bit(FC_LOGO_RCVD_DID_CHNG, &phba->pport->fc_flag); 910 lpfc_retry_pport_discovery(phba); 911 } 912 } else { 913 lpfc_printf_vlog(vport, KERN_INFO, 914 LOG_NODE | LOG_ELS | LOG_DISCOVERY, 915 "3203 LOGO recover nport x%06x state x%x " 916 "ntype x%x fc_flag x%lx\n", 917 ndlp->nlp_DID, ndlp->nlp_state, 918 ndlp->nlp_type, vport->fc_flag); 919 920 /* Special cases for rports that recover post LOGO. */ 921 if ((!(ndlp->nlp_type == NLP_FABRIC) && 922 (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) || 923 test_bit(FC_PT2PT, &vport->fc_flag))) || 924 (ndlp->nlp_state >= NLP_STE_ADISC_ISSUE || 925 ndlp->nlp_state <= NLP_STE_PRLI_ISSUE)) { 926 mod_timer(&ndlp->nlp_delayfunc, 927 jiffies + secs_to_jiffies(1)); 928 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 929 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 930 lpfc_printf_vlog(vport, KERN_INFO, 931 LOG_NODE | LOG_ELS | LOG_DISCOVERY, 932 "3204 Start nlpdelay on DID x%06x " 933 "nflag x%lx lastels x%x ref cnt %u", 934 ndlp->nlp_DID, ndlp->nlp_flag, 935 ndlp->nlp_last_elscmd, 936 kref_read(&ndlp->kref)); 937 } 938 } 939 out: 940 /* Unregister from backend, could have been skipped due to ADISC */ 941 lpfc_nlp_unreg_node(vport, ndlp); 942 943 ndlp->nlp_prev_state = ndlp->nlp_state; 944 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 945 946 clear_bit(NLP_NPR_ADISC, &ndlp->nlp_flag); 947 /* The driver has to wait until the ACC completes before it continues 948 * processing the LOGO. The action will resume in 949 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 950 * unreg_login, the driver waits so the ACC does not get aborted. 951 */ 952 return 0; 953 } 954 955 static uint32_t 956 lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 957 struct lpfc_nodelist *ndlp, 958 struct lpfc_iocbq *cmdiocb) 959 { 960 struct ls_rjt stat; 961 uint32_t *payload; 962 uint32_t cmd; 963 PRLI *npr; 964 965 payload = cmdiocb->cmd_dmabuf->virt; 966 cmd = *payload; 967 npr = (PRLI *)((uint8_t *)payload + sizeof(uint32_t)); 968 969 if (vport->phba->nvmet_support) { 970 /* Must be a NVME PRLI */ 971 if (cmd == ELS_CMD_PRLI) 972 goto out; 973 } else { 974 /* Initiator mode. */ 975 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 976 goto out; 977 978 /* NPIV ports will RJT initiator only functions */ 979 if (vport->port_type == LPFC_NPIV_PORT && 980 npr->initiatorFunc && !npr->targetFunc) 981 goto out; 982 } 983 return 1; 984 out: 985 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 986 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 987 "state x%x flags x%lx port_type: x%x " 988 "npr->initfcn: x%x npr->tgtfcn: x%x\n", 989 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 990 ndlp->nlp_flag, vport->port_type, 991 npr->initiatorFunc, npr->targetFunc); 992 memset(&stat, 0, sizeof(struct ls_rjt)); 993 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 994 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 995 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 996 ndlp, NULL); 997 return 0; 998 } 999 1000 static void 1001 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1002 struct lpfc_iocbq *cmdiocb) 1003 { 1004 struct lpfc_hba *phba = vport->phba; 1005 struct lpfc_dmabuf *pcmd; 1006 uint32_t *lp; 1007 PRLI *npr; 1008 struct fc_rport *rport = ndlp->rport; 1009 u32 roles; 1010 1011 pcmd = cmdiocb->cmd_dmabuf; 1012 lp = (uint32_t *)pcmd->virt; 1013 npr = (PRLI *)((uint8_t *)lp + sizeof(uint32_t)); 1014 1015 if ((npr->prliType == PRLI_FCP_TYPE) || 1016 (npr->prliType == PRLI_NVME_TYPE)) { 1017 if (npr->initiatorFunc) { 1018 if (npr->prliType == PRLI_FCP_TYPE) 1019 ndlp->nlp_type |= NLP_FCP_INITIATOR; 1020 if (npr->prliType == PRLI_NVME_TYPE) 1021 ndlp->nlp_type |= NLP_NVME_INITIATOR; 1022 } 1023 if (npr->targetFunc) { 1024 if (npr->prliType == PRLI_FCP_TYPE) 1025 ndlp->nlp_type |= NLP_FCP_TARGET; 1026 if (npr->prliType == PRLI_NVME_TYPE) 1027 ndlp->nlp_type |= NLP_NVME_TARGET; 1028 if (npr->writeXferRdyDis) 1029 set_bit(NLP_FIRSTBURST, &ndlp->nlp_flag); 1030 } 1031 if (npr->Retry && ndlp->nlp_type & 1032 (NLP_FCP_INITIATOR | NLP_FCP_TARGET)) 1033 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 1034 1035 if (npr->Retry && phba->nsler && 1036 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET)) 1037 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 1038 1039 1040 /* If this driver is in nvme target mode, set the ndlp's fc4 1041 * type to NVME provided the PRLI response claims NVME FC4 1042 * type. Target mode does not issue gft_id so doesn't get 1043 * the fc4 type set until now. 1044 */ 1045 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 1046 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1047 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1048 } 1049 1050 /* Fabric Controllers send FCP PRLI as an initiator but should 1051 * not get recognized as FCP type and registered with transport. 1052 */ 1053 if (npr->prliType == PRLI_FCP_TYPE && 1054 !(ndlp->nlp_type & NLP_FABRIC)) 1055 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1056 } 1057 if (rport) { 1058 /* We need to update the rport role values */ 1059 roles = FC_RPORT_ROLE_UNKNOWN; 1060 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 1061 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 1062 if (ndlp->nlp_type & NLP_FCP_TARGET) 1063 roles |= FC_RPORT_ROLE_FCP_TARGET; 1064 1065 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 1066 "rport rolechg: role:x%x did:x%x flg:x%lx", 1067 roles, ndlp->nlp_DID, ndlp->nlp_flag); 1068 1069 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1070 fc_remote_port_rolechg(rport, roles); 1071 } 1072 } 1073 1074 static uint32_t 1075 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 1076 { 1077 if (!test_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag)) { 1078 clear_bit(NLP_NPR_ADISC, &ndlp->nlp_flag); 1079 return 0; 1080 } 1081 1082 if (!test_bit(FC_PT2PT, &vport->fc_flag)) { 1083 /* Check config parameter use-adisc or FCP-2 */ 1084 if (vport->cfg_use_adisc && 1085 (test_bit(FC_RSCN_MODE, &vport->fc_flag) || 1086 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 1087 (ndlp->nlp_type & NLP_FCP_TARGET)))) { 1088 set_bit(NLP_NPR_ADISC, &ndlp->nlp_flag); 1089 return 1; 1090 } 1091 } 1092 1093 clear_bit(NLP_NPR_ADISC, &ndlp->nlp_flag); 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 (test_bit(NLP_UNREG_INP, &ndlp->nlp_flag)) { 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%lx " 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 set_bit(NLP_UNREG_INP, &ndlp->nlp_flag); 1147 1148 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1149 "1437 release_rpi UNREG x%x " 1150 "on NPort x%x flg x%lx\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%lx\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 (!test_bit(NLP_RCV_PLOGI, &ndlp->nlp_flag)) 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%lx\n", 1197 ndlp->nlp_DID, evt, ndlp->nlp_state, 1198 ndlp->nlp_rpi, ndlp->nlp_flag); 1199 return ndlp->nlp_state; 1200 } 1201 1202 /* Start of Discovery State Machine routines */ 1203 1204 static uint32_t 1205 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1206 void *arg, uint32_t evt) 1207 { 1208 struct lpfc_iocbq *cmdiocb; 1209 1210 cmdiocb = (struct lpfc_iocbq *) arg; 1211 1212 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1213 return ndlp->nlp_state; 1214 } 1215 return NLP_STE_FREED_NODE; 1216 } 1217 1218 static uint32_t 1219 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1220 void *arg, uint32_t evt) 1221 { 1222 lpfc_issue_els_logo(vport, ndlp, 0); 1223 return ndlp->nlp_state; 1224 } 1225 1226 static uint32_t 1227 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1228 void *arg, uint32_t evt) 1229 { 1230 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1231 1232 set_bit(NLP_LOGO_ACC, &ndlp->nlp_flag); 1233 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1234 1235 return ndlp->nlp_state; 1236 } 1237 1238 static uint32_t 1239 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1240 void *arg, uint32_t evt) 1241 { 1242 return NLP_STE_FREED_NODE; 1243 } 1244 1245 static uint32_t 1246 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1247 void *arg, uint32_t evt) 1248 { 1249 return NLP_STE_FREED_NODE; 1250 } 1251 1252 static uint32_t 1253 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 1254 struct lpfc_nodelist *ndlp, 1255 void *arg, uint32_t evt) 1256 { 1257 return ndlp->nlp_state; 1258 } 1259 1260 static uint32_t 1261 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1262 void *arg, uint32_t evt) 1263 { 1264 struct lpfc_hba *phba = vport->phba; 1265 struct lpfc_iocbq *cmdiocb = arg; 1266 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 1267 uint32_t *lp = (uint32_t *) pcmd->virt; 1268 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1269 struct ls_rjt stat; 1270 int port_cmp; 1271 1272 memset(&stat, 0, sizeof (struct ls_rjt)); 1273 1274 /* For a PLOGI, we only accept if our portname is less 1275 * than the remote portname. 1276 */ 1277 phba->fc_stat.elsLogiCol++; 1278 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1279 sizeof(struct lpfc_name)); 1280 1281 if (port_cmp >= 0) { 1282 /* Reject this request because the remote node will accept 1283 ours */ 1284 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1285 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1286 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1287 NULL); 1288 } else { 1289 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1290 test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag) && 1291 vport->num_disc_nodes) { 1292 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 1293 /* Check if there are more PLOGIs to be sent */ 1294 lpfc_more_plogi(vport); 1295 if (vport->num_disc_nodes == 0) { 1296 clear_bit(FC_NDISC_ACTIVE, &vport->fc_flag); 1297 lpfc_can_disctmo(vport); 1298 lpfc_end_rscn(vport); 1299 } 1300 } 1301 } /* If our portname was less */ 1302 1303 return ndlp->nlp_state; 1304 } 1305 1306 static uint32_t 1307 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1308 void *arg, uint32_t evt) 1309 { 1310 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1311 struct ls_rjt stat; 1312 1313 memset(&stat, 0, sizeof (struct ls_rjt)); 1314 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1315 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1316 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1317 return ndlp->nlp_state; 1318 } 1319 1320 static uint32_t 1321 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1322 void *arg, uint32_t evt) 1323 { 1324 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1325 1326 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1327 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1328 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1329 /* software abort outstanding PLOGI */ 1330 lpfc_els_abort(vport->phba, ndlp); 1331 1332 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1333 return ndlp->nlp_state; 1334 } 1335 1336 static uint32_t 1337 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1338 void *arg, uint32_t evt) 1339 { 1340 struct lpfc_hba *phba = vport->phba; 1341 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1342 1343 /* software abort outstanding PLOGI */ 1344 lpfc_els_abort(phba, ndlp); 1345 1346 if (evt == NLP_EVT_RCV_LOGO) { 1347 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1348 } else { 1349 lpfc_issue_els_logo(vport, ndlp, 0); 1350 } 1351 1352 /* Put ndlp in npr state set plogi timer for 1 sec */ 1353 mod_timer(&ndlp->nlp_delayfunc, jiffies + secs_to_jiffies(1)); 1354 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 1355 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1356 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1357 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1358 1359 return ndlp->nlp_state; 1360 } 1361 1362 static uint32_t 1363 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1364 struct lpfc_nodelist *ndlp, 1365 void *arg, 1366 uint32_t evt) 1367 { 1368 struct lpfc_hba *phba = vport->phba; 1369 struct lpfc_iocbq *cmdiocb, *rspiocb; 1370 struct lpfc_dmabuf *pcmd, *prsp; 1371 uint32_t *lp; 1372 uint32_t vid, flag; 1373 struct serv_parm *sp; 1374 uint32_t ed_tov; 1375 LPFC_MBOXQ_t *mbox; 1376 int rc; 1377 u32 ulp_status; 1378 u32 did; 1379 1380 cmdiocb = (struct lpfc_iocbq *) arg; 1381 rspiocb = cmdiocb->rsp_iocb; 1382 1383 ulp_status = get_job_ulpstatus(phba, rspiocb); 1384 1385 if (test_bit(NLP_ACC_REGLOGIN, &ndlp->nlp_flag)) { 1386 /* Recovery from PLOGI collision logic */ 1387 return ndlp->nlp_state; 1388 } 1389 1390 if (ulp_status) 1391 goto out; 1392 1393 pcmd = cmdiocb->cmd_dmabuf; 1394 1395 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1396 if (!prsp) 1397 goto out; 1398 1399 lp = (uint32_t *) prsp->virt; 1400 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1401 1402 /* Some switches have FDMI servers returning 0 for WWN */ 1403 if ((ndlp->nlp_DID != FDMI_DID) && 1404 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1405 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1406 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1407 "0142 PLOGI RSP: Invalid WWN.\n"); 1408 goto out; 1409 } 1410 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1411 goto out; 1412 /* PLOGI chkparm OK */ 1413 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1414 "0121 PLOGI chkparm OK Data: x%x x%x x%lx x%x\n", 1415 ndlp->nlp_DID, ndlp->nlp_state, 1416 ndlp->nlp_flag, ndlp->nlp_rpi); 1417 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1418 ndlp->nlp_fcp_info |= CLASS2; 1419 else 1420 ndlp->nlp_fcp_info |= CLASS3; 1421 1422 ndlp->nlp_class_sup = 0; 1423 if (sp->cls1.classValid) 1424 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1425 if (sp->cls2.classValid) 1426 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1427 if (sp->cls3.classValid) 1428 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1429 if (sp->cls4.classValid) 1430 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1431 ndlp->nlp_maxframe = 1432 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1433 1434 if (test_bit(FC_PT2PT, &vport->fc_flag) && 1435 test_bit(FC_PT2PT_PLOGI, &vport->fc_flag)) { 1436 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1437 if (sp->cmn.edtovResolution) { 1438 /* E_D_TOV ticks are in nanoseconds */ 1439 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1440 } 1441 1442 clear_bit(NLP_SUPPRESS_RSP, &ndlp->nlp_flag); 1443 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1444 sp->cmn.valid_vendor_ver_level) { 1445 vid = be32_to_cpu(sp->un.vv.vid); 1446 flag = be32_to_cpu(sp->un.vv.flags); 1447 if ((vid == LPFC_VV_EMLX_ID) && 1448 (flag & LPFC_VV_SUPPRESS_RSP)) 1449 set_bit(NLP_SUPPRESS_RSP, &ndlp->nlp_flag); 1450 } 1451 1452 /* 1453 * Use the larger EDTOV 1454 * RATOV = 2 * EDTOV for pt-to-pt 1455 */ 1456 if (ed_tov > phba->fc_edtov) 1457 phba->fc_edtov = ed_tov; 1458 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1459 1460 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1461 1462 /* Issue config_link / reg_vfi to account for updated TOV's */ 1463 if (phba->sli_rev == LPFC_SLI_REV4) { 1464 lpfc_issue_reg_vfi(vport); 1465 } else { 1466 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1467 if (!mbox) { 1468 lpfc_printf_vlog(vport, KERN_ERR, 1469 LOG_TRACE_EVENT, 1470 "0133 PLOGI: no memory " 1471 "for config_link " 1472 "Data: x%x x%x x%lx x%x\n", 1473 ndlp->nlp_DID, ndlp->nlp_state, 1474 ndlp->nlp_flag, ndlp->nlp_rpi); 1475 goto out; 1476 } 1477 1478 lpfc_config_link(phba, mbox); 1479 1480 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1481 mbox->vport = vport; 1482 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1483 if (rc == MBX_NOT_FINISHED) { 1484 mempool_free(mbox, phba->mbox_mem_pool); 1485 goto out; 1486 } 1487 } 1488 } 1489 1490 lpfc_unreg_rpi(vport, ndlp); 1491 1492 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1493 if (!mbox) { 1494 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1495 "0018 PLOGI: no memory for reg_login " 1496 "Data: x%x x%x x%lx x%x\n", 1497 ndlp->nlp_DID, ndlp->nlp_state, 1498 ndlp->nlp_flag, ndlp->nlp_rpi); 1499 goto out; 1500 } 1501 1502 did = get_job_els_rsp64_did(phba, cmdiocb); 1503 1504 if (lpfc_reg_rpi(phba, vport->vpi, did, 1505 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1506 switch (ndlp->nlp_DID) { 1507 case NameServer_DID: 1508 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1509 /* Fabric Controller Node needs these parameters. */ 1510 memcpy(&ndlp->fc_sparam, sp, sizeof(struct serv_parm)); 1511 break; 1512 case FDMI_DID: 1513 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1514 break; 1515 default: 1516 set_bit(NLP_REG_LOGIN_SEND, &ndlp->nlp_flag); 1517 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1518 } 1519 1520 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1521 if (!mbox->ctx_ndlp) 1522 goto out; 1523 1524 mbox->vport = vport; 1525 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1526 != MBX_NOT_FINISHED) { 1527 lpfc_nlp_set_state(vport, ndlp, 1528 NLP_STE_REG_LOGIN_ISSUE); 1529 return ndlp->nlp_state; 1530 } 1531 clear_bit(NLP_REG_LOGIN_SEND, &ndlp->nlp_flag); 1532 /* decrement node reference count to the failed mbox 1533 * command 1534 */ 1535 lpfc_nlp_put(ndlp); 1536 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 1537 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1538 "0134 PLOGI: cannot issue reg_login " 1539 "Data: x%x x%x x%lx x%x\n", 1540 ndlp->nlp_DID, ndlp->nlp_state, 1541 ndlp->nlp_flag, ndlp->nlp_rpi); 1542 } else { 1543 mempool_free(mbox, phba->mbox_mem_pool); 1544 1545 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1546 "0135 PLOGI: cannot format reg_login " 1547 "Data: x%x x%x x%lx x%x\n", 1548 ndlp->nlp_DID, ndlp->nlp_state, 1549 ndlp->nlp_flag, ndlp->nlp_rpi); 1550 } 1551 1552 1553 out: 1554 if (ndlp->nlp_DID == NameServer_DID) { 1555 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1556 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1557 "0261 Cannot Register NameServer login\n"); 1558 } 1559 1560 /* 1561 ** In case the node reference counter does not go to zero, ensure that 1562 ** the stale state for the node is not processed. 1563 */ 1564 1565 ndlp->nlp_prev_state = ndlp->nlp_state; 1566 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1567 return NLP_STE_FREED_NODE; 1568 } 1569 1570 static uint32_t 1571 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1572 void *arg, uint32_t evt) 1573 { 1574 return ndlp->nlp_state; 1575 } 1576 1577 static uint32_t 1578 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1579 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1580 { 1581 struct lpfc_hba *phba; 1582 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1583 MAILBOX_t *mb = &pmb->u.mb; 1584 uint16_t rpi; 1585 1586 phba = vport->phba; 1587 /* Release the RPI */ 1588 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag) && 1589 !mb->mbxStatus) { 1590 rpi = pmb->u.mb.un.varWords[0]; 1591 lpfc_release_rpi(phba, vport, ndlp, rpi); 1592 } 1593 return ndlp->nlp_state; 1594 } 1595 1596 static uint32_t 1597 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1598 void *arg, uint32_t evt) 1599 { 1600 if (test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 1601 set_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 1602 return ndlp->nlp_state; 1603 } 1604 /* software abort outstanding PLOGI */ 1605 lpfc_els_abort(vport->phba, ndlp); 1606 1607 lpfc_drop_node(vport, ndlp); 1608 return NLP_STE_FREED_NODE; 1609 } 1610 1611 static uint32_t 1612 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1613 struct lpfc_nodelist *ndlp, 1614 void *arg, 1615 uint32_t evt) 1616 { 1617 struct lpfc_hba *phba = vport->phba; 1618 1619 /* Don't do anything that disrupts the RSCN unless lpfc is unloading. */ 1620 if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag)) 1621 return ndlp->nlp_state; 1622 1623 /* software abort outstanding PLOGI */ 1624 lpfc_els_abort(phba, ndlp); 1625 1626 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1627 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1628 clear_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 1629 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 1630 1631 return ndlp->nlp_state; 1632 } 1633 1634 static uint32_t 1635 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1636 void *arg, uint32_t evt) 1637 { 1638 struct lpfc_hba *phba = vport->phba; 1639 struct lpfc_iocbq *cmdiocb; 1640 1641 /* software abort outstanding ADISC */ 1642 lpfc_els_abort(phba, ndlp); 1643 1644 cmdiocb = (struct lpfc_iocbq *) arg; 1645 1646 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1647 if (test_and_clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 1648 if (vport->num_disc_nodes) 1649 lpfc_more_adisc(vport); 1650 } 1651 return ndlp->nlp_state; 1652 } 1653 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1654 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1655 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1656 1657 return ndlp->nlp_state; 1658 } 1659 1660 static uint32_t 1661 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1662 void *arg, uint32_t evt) 1663 { 1664 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1665 1666 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1667 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1668 return ndlp->nlp_state; 1669 } 1670 1671 static uint32_t 1672 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1673 void *arg, uint32_t evt) 1674 { 1675 struct lpfc_hba *phba = vport->phba; 1676 struct lpfc_iocbq *cmdiocb; 1677 1678 cmdiocb = (struct lpfc_iocbq *) arg; 1679 1680 /* software abort outstanding ADISC */ 1681 lpfc_els_abort(phba, ndlp); 1682 1683 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1684 return ndlp->nlp_state; 1685 } 1686 1687 static uint32_t 1688 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1689 struct lpfc_nodelist *ndlp, 1690 void *arg, uint32_t evt) 1691 { 1692 struct lpfc_iocbq *cmdiocb; 1693 1694 cmdiocb = (struct lpfc_iocbq *) arg; 1695 1696 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1697 return ndlp->nlp_state; 1698 } 1699 1700 static uint32_t 1701 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1702 void *arg, uint32_t evt) 1703 { 1704 struct lpfc_iocbq *cmdiocb; 1705 1706 cmdiocb = (struct lpfc_iocbq *) arg; 1707 1708 /* Treat like rcv logo */ 1709 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1710 return ndlp->nlp_state; 1711 } 1712 1713 static uint32_t 1714 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1715 struct lpfc_nodelist *ndlp, 1716 void *arg, uint32_t evt) 1717 { 1718 struct lpfc_hba *phba = vport->phba; 1719 struct lpfc_iocbq *cmdiocb, *rspiocb; 1720 ADISC *ap; 1721 int rc; 1722 u32 ulp_status; 1723 1724 cmdiocb = (struct lpfc_iocbq *) arg; 1725 rspiocb = cmdiocb->rsp_iocb; 1726 1727 ulp_status = get_job_ulpstatus(phba, rspiocb); 1728 1729 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1730 1731 if ((ulp_status) || 1732 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1733 /* 1 sec timeout */ 1734 mod_timer(&ndlp->nlp_delayfunc, 1735 jiffies + msecs_to_jiffies(1000)); 1736 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 1737 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1738 1739 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1740 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1741 lpfc_unreg_rpi(vport, ndlp); 1742 return ndlp->nlp_state; 1743 } 1744 1745 if (phba->sli_rev == LPFC_SLI_REV4) { 1746 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1747 if (rc) { 1748 /* Stay in state and retry. */ 1749 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1750 return ndlp->nlp_state; 1751 } 1752 } 1753 1754 if (ndlp->nlp_type & NLP_FCP_TARGET) 1755 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1756 1757 if (ndlp->nlp_type & NLP_NVME_TARGET) 1758 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1759 1760 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 1761 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1762 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1763 } else { 1764 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1765 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1766 } 1767 1768 return ndlp->nlp_state; 1769 } 1770 1771 static uint32_t 1772 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1773 void *arg, uint32_t evt) 1774 { 1775 if (test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 1776 set_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 1777 return ndlp->nlp_state; 1778 } 1779 /* software abort outstanding ADISC */ 1780 lpfc_els_abort(vport->phba, ndlp); 1781 1782 lpfc_drop_node(vport, ndlp); 1783 return NLP_STE_FREED_NODE; 1784 } 1785 1786 static uint32_t 1787 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1788 struct lpfc_nodelist *ndlp, 1789 void *arg, 1790 uint32_t evt) 1791 { 1792 struct lpfc_hba *phba = vport->phba; 1793 1794 /* Don't do anything that disrupts the RSCN unless lpfc is unloading. */ 1795 if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag)) 1796 return ndlp->nlp_state; 1797 1798 /* software abort outstanding ADISC */ 1799 lpfc_els_abort(phba, ndlp); 1800 1801 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1802 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1803 clear_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 1804 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 1805 lpfc_disc_set_adisc(vport, ndlp); 1806 return ndlp->nlp_state; 1807 } 1808 1809 static uint32_t 1810 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1811 struct lpfc_nodelist *ndlp, 1812 void *arg, 1813 uint32_t evt) 1814 { 1815 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1816 1817 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1818 return ndlp->nlp_state; 1819 } 1820 1821 static uint32_t 1822 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1823 struct lpfc_nodelist *ndlp, 1824 void *arg, 1825 uint32_t evt) 1826 { 1827 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1828 struct ls_rjt stat; 1829 1830 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1831 return ndlp->nlp_state; 1832 } 1833 if (vport->phba->nvmet_support) { 1834 /* NVME Target mode. Handle and respond to the PRLI and 1835 * transition to UNMAPPED provided the RPI has completed 1836 * registration. 1837 */ 1838 if (test_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag)) { 1839 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1840 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1841 } else { 1842 /* RPI registration has not completed. Reject the PRLI 1843 * to prevent an illegal state transition when the 1844 * rpi registration does complete. 1845 */ 1846 memset(&stat, 0, sizeof(struct ls_rjt)); 1847 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1848 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1849 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1850 ndlp, NULL); 1851 return ndlp->nlp_state; 1852 } 1853 } else { 1854 /* Initiator mode. */ 1855 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1856 } 1857 return ndlp->nlp_state; 1858 } 1859 1860 static uint32_t 1861 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1862 struct lpfc_nodelist *ndlp, 1863 void *arg, 1864 uint32_t evt) 1865 { 1866 struct lpfc_hba *phba = vport->phba; 1867 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1868 LPFC_MBOXQ_t *mb; 1869 LPFC_MBOXQ_t *nextmb; 1870 1871 cmdiocb = (struct lpfc_iocbq *) arg; 1872 1873 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1874 if ((mb = phba->sli.mbox_active)) { 1875 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1876 (ndlp == mb->ctx_ndlp)) { 1877 clear_bit(NLP_REG_LOGIN_SEND, &ndlp->nlp_flag); 1878 lpfc_nlp_put(ndlp); 1879 mb->ctx_ndlp = NULL; 1880 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1881 } 1882 } 1883 1884 spin_lock_irq(&phba->hbalock); 1885 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1886 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1887 (ndlp == mb->ctx_ndlp)) { 1888 clear_bit(NLP_REG_LOGIN_SEND, &ndlp->nlp_flag); 1889 lpfc_nlp_put(ndlp); 1890 list_del(&mb->list); 1891 phba->sli.mboxq_cnt--; 1892 lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_LOCKED); 1893 } 1894 } 1895 spin_unlock_irq(&phba->hbalock); 1896 1897 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1898 return ndlp->nlp_state; 1899 } 1900 1901 static uint32_t 1902 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1903 struct lpfc_nodelist *ndlp, 1904 void *arg, 1905 uint32_t evt) 1906 { 1907 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1908 1909 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1910 return ndlp->nlp_state; 1911 } 1912 1913 static uint32_t 1914 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1915 struct lpfc_nodelist *ndlp, 1916 void *arg, 1917 uint32_t evt) 1918 { 1919 struct lpfc_iocbq *cmdiocb; 1920 1921 cmdiocb = (struct lpfc_iocbq *) arg; 1922 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1923 return ndlp->nlp_state; 1924 } 1925 1926 static uint32_t 1927 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1928 struct lpfc_nodelist *ndlp, 1929 void *arg, 1930 uint32_t evt) 1931 { 1932 struct lpfc_hba *phba = vport->phba; 1933 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1934 MAILBOX_t *mb = &pmb->u.mb; 1935 uint32_t did = mb->un.varWords[1]; 1936 1937 if (mb->mbxStatus) { 1938 /* RegLogin failed */ 1939 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1940 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1941 "x%x\n", 1942 did, mb->mbxStatus, vport->port_state, 1943 mb->un.varRegLogin.vpi, 1944 mb->un.varRegLogin.rpi); 1945 /* 1946 * If RegLogin failed due to lack of HBA resources do not 1947 * retry discovery. 1948 */ 1949 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1950 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1951 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1952 return ndlp->nlp_state; 1953 } 1954 1955 /* Put ndlp in npr state set plogi timer for 1 sec */ 1956 mod_timer(&ndlp->nlp_delayfunc, 1957 jiffies + secs_to_jiffies(1)); 1958 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 1959 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1960 1961 lpfc_issue_els_logo(vport, ndlp, 0); 1962 return ndlp->nlp_state; 1963 } 1964 1965 /* SLI4 ports have preallocated logical rpis. */ 1966 if (phba->sli_rev < LPFC_SLI_REV4) 1967 ndlp->nlp_rpi = mb->un.varWords[0]; 1968 1969 set_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag); 1970 1971 /* Only if we are not a fabric nport do we issue PRLI */ 1972 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1973 "3066 RegLogin Complete on x%x x%x x%x\n", 1974 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 1975 if (!(ndlp->nlp_type & NLP_FABRIC) && 1976 (phba->nvmet_support == 0)) { 1977 /* The driver supports FCP and NVME concurrently. If the 1978 * ndlp's nlp_fc4_type is still zero, the driver doesn't 1979 * know what PRLI to send yet. Figure that out now and 1980 * call PRLI depending on the outcome. 1981 */ 1982 if (test_bit(FC_PT2PT, &vport->fc_flag)) { 1983 /* If we are pt2pt, there is no Fabric to determine 1984 * the FC4 type of the remote nport. So if NVME 1985 * is configured try it. 1986 */ 1987 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1988 if ((!test_bit(FC_PT2PT_NO_NVME, &vport->fc_flag)) && 1989 (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH || 1990 vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1991 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1992 /* We need to update the localport also */ 1993 lpfc_nvme_update_localport(vport); 1994 } 1995 1996 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 1997 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1998 1999 } else if (ndlp->nlp_fc4_type == 0) { 2000 /* If we are only configured for FCP, the driver 2001 * should just issue PRLI for FCP. Otherwise issue 2002 * GFT_ID to determine if remote port supports NVME. 2003 */ 2004 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 2005 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0, 2006 ndlp->nlp_DID); 2007 return ndlp->nlp_state; 2008 } 2009 ndlp->nlp_fc4_type = NLP_FC4_FCP; 2010 } 2011 2012 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2013 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 2014 if (lpfc_issue_els_prli(vport, ndlp, 0)) { 2015 lpfc_issue_els_logo(vport, ndlp, 0); 2016 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2017 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2018 } 2019 } else { 2020 if (test_bit(FC_PT2PT, &vport->fc_flag) && phba->nvmet_support) 2021 phba->targetport->port_id = vport->fc_myDID; 2022 2023 /* Only Fabric ports should transition. NVME target 2024 * must complete PRLI. 2025 */ 2026 if (ndlp->nlp_type & NLP_FABRIC) { 2027 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2028 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2029 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2030 } 2031 } 2032 return ndlp->nlp_state; 2033 } 2034 2035 static uint32_t 2036 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 2037 struct lpfc_nodelist *ndlp, 2038 void *arg, 2039 uint32_t evt) 2040 { 2041 if (test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 2042 set_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2043 return ndlp->nlp_state; 2044 } 2045 lpfc_drop_node(vport, ndlp); 2046 return NLP_STE_FREED_NODE; 2047 } 2048 2049 static uint32_t 2050 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 2051 struct lpfc_nodelist *ndlp, 2052 void *arg, 2053 uint32_t evt) 2054 { 2055 /* Don't do anything that disrupts the RSCN unless lpfc is unloading. */ 2056 if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag)) 2057 return ndlp->nlp_state; 2058 2059 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2060 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2061 2062 /* If we are a target we won't immediately transition into PRLI, 2063 * so if REG_LOGIN already completed we don't need to ignore it. 2064 */ 2065 if (!test_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag) || 2066 !vport->phba->nvmet_support) 2067 set_bit(NLP_IGNR_REG_CMPL, &ndlp->nlp_flag); 2068 2069 clear_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2070 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2071 lpfc_disc_set_adisc(vport, ndlp); 2072 return ndlp->nlp_state; 2073 } 2074 2075 static uint32_t 2076 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2077 void *arg, uint32_t evt) 2078 { 2079 struct lpfc_iocbq *cmdiocb; 2080 2081 cmdiocb = (struct lpfc_iocbq *) arg; 2082 2083 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2084 return ndlp->nlp_state; 2085 } 2086 2087 static uint32_t 2088 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2089 void *arg, uint32_t evt) 2090 { 2091 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2092 2093 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2094 return ndlp->nlp_state; 2095 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2096 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2097 return ndlp->nlp_state; 2098 } 2099 2100 static uint32_t 2101 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2102 void *arg, uint32_t evt) 2103 { 2104 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2105 2106 /* Software abort outstanding PRLI before sending acc */ 2107 lpfc_els_abort(vport->phba, ndlp); 2108 2109 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2110 return ndlp->nlp_state; 2111 } 2112 2113 static uint32_t 2114 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2115 void *arg, uint32_t evt) 2116 { 2117 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2118 2119 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2120 return ndlp->nlp_state; 2121 } 2122 2123 /* This routine is envoked when we rcv a PRLO request from a nport 2124 * we are logged into. We should send back a PRLO rsp setting the 2125 * appropriate bits. 2126 * NEXT STATE = PRLI_ISSUE 2127 */ 2128 static uint32_t 2129 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2130 void *arg, uint32_t evt) 2131 { 2132 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2133 2134 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2135 return ndlp->nlp_state; 2136 } 2137 2138 static uint32_t 2139 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2140 void *arg, uint32_t evt) 2141 { 2142 struct lpfc_iocbq *cmdiocb, *rspiocb; 2143 struct lpfc_hba *phba = vport->phba; 2144 PRLI *npr; 2145 struct lpfc_nvme_prli *nvpr; 2146 void *temp_ptr; 2147 u32 ulp_status; 2148 bool acc_imode_sps = false; 2149 2150 cmdiocb = (struct lpfc_iocbq *) arg; 2151 rspiocb = cmdiocb->rsp_iocb; 2152 2153 ulp_status = get_job_ulpstatus(phba, rspiocb); 2154 2155 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 2156 * format is different so NULL the two PRLI types so that the 2157 * driver correctly gets the correct context. 2158 */ 2159 npr = NULL; 2160 nvpr = NULL; 2161 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 2162 if (cmdiocb->cmd_flag & LPFC_PRLI_FCP_REQ) 2163 npr = (PRLI *) temp_ptr; 2164 else if (cmdiocb->cmd_flag & LPFC_PRLI_NVME_REQ) 2165 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 2166 2167 if (ulp_status) { 2168 if ((vport->port_type == LPFC_NPIV_PORT) && 2169 vport->cfg_restrict_login) { 2170 goto out; 2171 } 2172 2173 /* Adjust the nlp_type accordingly if the PRLI failed */ 2174 if (npr) 2175 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2176 if (nvpr) 2177 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 2178 2179 /* We can't set the DSM state till BOTH PRLIs complete */ 2180 goto out_err; 2181 } 2182 2183 if (npr && npr->prliType == PRLI_FCP_TYPE) { 2184 lpfc_printf_vlog(vport, KERN_INFO, 2185 LOG_ELS | LOG_NODE | LOG_DISCOVERY, 2186 "6028 FCP NPR PRLI Cmpl Init %d Target %d " 2187 "EIP %d AccCode x%x\n", 2188 npr->initiatorFunc, npr->targetFunc, 2189 npr->estabImagePair, npr->acceptRspCode); 2190 2191 if (npr->acceptRspCode == PRLI_INV_SRV_PARM) { 2192 /* Strict initiators don't establish an image pair. */ 2193 if (npr->initiatorFunc && !npr->targetFunc && 2194 !npr->estabImagePair) 2195 acc_imode_sps = true; 2196 } 2197 2198 if (npr->acceptRspCode == PRLI_REQ_EXECUTED || acc_imode_sps) { 2199 if (npr->initiatorFunc) 2200 ndlp->nlp_type |= NLP_FCP_INITIATOR; 2201 if (npr->targetFunc) { 2202 ndlp->nlp_type |= NLP_FCP_TARGET; 2203 if (npr->writeXferRdyDis) 2204 set_bit(NLP_FIRSTBURST, 2205 &ndlp->nlp_flag); 2206 } 2207 if (npr->Retry) 2208 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 2209 } 2210 } else if (nvpr && 2211 (bf_get_be32(prli_acc_rsp_code, nvpr) == 2212 PRLI_REQ_EXECUTED) && 2213 (bf_get_be32(prli_type_code, nvpr) == 2214 PRLI_NVME_TYPE)) { 2215 2216 /* Complete setting up the remote ndlp personality. */ 2217 if (bf_get_be32(prli_init, nvpr)) 2218 ndlp->nlp_type |= NLP_NVME_INITIATOR; 2219 2220 if (phba->nsler && bf_get_be32(prli_nsler, nvpr) && 2221 bf_get_be32(prli_conf, nvpr)) 2222 2223 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 2224 else 2225 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 2226 2227 /* Target driver cannot solicit NVME FB. */ 2228 if (bf_get_be32(prli_tgt, nvpr)) { 2229 /* Complete the nvme target roles. The transport 2230 * needs to know if the rport is capable of 2231 * discovery in addition to its role. 2232 */ 2233 ndlp->nlp_type |= NLP_NVME_TARGET; 2234 if (bf_get_be32(prli_disc, nvpr)) 2235 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 2236 2237 /* 2238 * If prli_fba is set, the Target supports FirstBurst. 2239 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 2240 * otherwise it defines the actual size supported by 2241 * the NVME Target. 2242 */ 2243 if ((bf_get_be32(prli_fba, nvpr) == 1) && 2244 (phba->cfg_nvme_enable_fb) && 2245 (!phba->nvmet_support)) { 2246 /* Both sides support FB. The target's first 2247 * burst size is a 512 byte encoded value. 2248 */ 2249 set_bit(NLP_FIRSTBURST, &ndlp->nlp_flag); 2250 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2251 nvpr); 2252 2253 /* Expressed in units of 512 bytes */ 2254 if (ndlp->nvme_fb_size) 2255 ndlp->nvme_fb_size <<= 2256 LPFC_NVME_FB_SHIFT; 2257 else 2258 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2259 } 2260 } 2261 2262 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2263 "6029 NVME PRLI Cmpl w1 x%08x " 2264 "w4 x%08x w5 x%08x flag x%lx, " 2265 "fcp_info x%x nlp_type x%x\n", 2266 be32_to_cpu(nvpr->word1), 2267 be32_to_cpu(nvpr->word4), 2268 be32_to_cpu(nvpr->word5), 2269 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2270 ndlp->nlp_type); 2271 } 2272 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2273 (vport->port_type == LPFC_NPIV_PORT) && 2274 vport->cfg_restrict_login) { 2275 out: 2276 lpfc_printf_vlog(vport, KERN_INFO, 2277 LOG_ELS | LOG_DISCOVERY | LOG_NODE, 2278 "6228 Sending LOGO, determined nlp_type " 2279 "0x%x nlp_flag x%lx refcnt %u\n", 2280 ndlp->nlp_type, ndlp->nlp_flag, 2281 kref_read(&ndlp->kref)); 2282 lpfc_issue_els_logo(vport, ndlp, 0); 2283 return ndlp->nlp_state; 2284 } 2285 2286 out_err: 2287 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2288 * are complete. 2289 */ 2290 if (ndlp->fc4_prli_sent == 0) { 2291 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2292 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2293 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2294 else if (ndlp->nlp_type & 2295 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2296 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2297 } else 2298 lpfc_printf_vlog(vport, 2299 KERN_INFO, LOG_ELS, 2300 "3067 PRLI's still outstanding " 2301 "on x%06x - count %d, Pend Node Mode " 2302 "transition...\n", 2303 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2304 2305 return ndlp->nlp_state; 2306 } 2307 2308 /*! lpfc_device_rm_prli_issue 2309 * 2310 * \pre 2311 * \post 2312 * \param phba 2313 * \param ndlp 2314 * \param arg 2315 * \param evt 2316 * \return uint32_t 2317 * 2318 * \b Description: 2319 * This routine is envoked when we a request to remove a nport we are in the 2320 * process of PRLIing. We should software abort outstanding prli, unreg 2321 * login, send a logout. We will change node state to UNUSED_NODE, put it 2322 * on plogi list so it can be freed when LOGO completes. 2323 * 2324 */ 2325 2326 static uint32_t 2327 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2328 void *arg, uint32_t evt) 2329 { 2330 if (test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 2331 set_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2332 return ndlp->nlp_state; 2333 } 2334 /* software abort outstanding PLOGI */ 2335 lpfc_els_abort(vport->phba, ndlp); 2336 2337 lpfc_drop_node(vport, ndlp); 2338 return NLP_STE_FREED_NODE; 2339 } 2340 2341 2342 /*! lpfc_device_recov_prli_issue 2343 * 2344 * \pre 2345 * \post 2346 * \param phba 2347 * \param ndlp 2348 * \param arg 2349 * \param evt 2350 * \return uint32_t 2351 * 2352 * \b Description: 2353 * The routine is envoked when the state of a device is unknown, like 2354 * during a link down. We should remove the nodelist entry from the 2355 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2356 * outstanding PRLI command, then free the node entry. 2357 */ 2358 static uint32_t 2359 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2360 struct lpfc_nodelist *ndlp, 2361 void *arg, 2362 uint32_t evt) 2363 { 2364 struct lpfc_hba *phba = vport->phba; 2365 2366 /* Don't do anything that disrupts the RSCN unless lpfc is unloading. */ 2367 if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag)) 2368 return ndlp->nlp_state; 2369 2370 /* software abort outstanding PRLI */ 2371 lpfc_els_abort(phba, ndlp); 2372 2373 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2374 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2375 clear_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2376 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2377 lpfc_disc_set_adisc(vport, ndlp); 2378 return ndlp->nlp_state; 2379 } 2380 2381 static uint32_t 2382 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2383 void *arg, uint32_t evt) 2384 { 2385 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2386 struct ls_rjt stat; 2387 2388 memset(&stat, 0, sizeof(struct ls_rjt)); 2389 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2390 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2391 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2392 return ndlp->nlp_state; 2393 } 2394 2395 static uint32_t 2396 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2397 void *arg, uint32_t evt) 2398 { 2399 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2400 struct ls_rjt stat; 2401 2402 memset(&stat, 0, sizeof(struct ls_rjt)); 2403 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2404 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2405 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2406 return ndlp->nlp_state; 2407 } 2408 2409 static uint32_t 2410 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2411 void *arg, uint32_t evt) 2412 { 2413 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2414 2415 set_bit(NLP_LOGO_ACC, &ndlp->nlp_flag); 2416 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2417 return ndlp->nlp_state; 2418 } 2419 2420 static uint32_t 2421 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2422 void *arg, uint32_t evt) 2423 { 2424 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2425 struct ls_rjt stat; 2426 2427 memset(&stat, 0, sizeof(struct ls_rjt)); 2428 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2429 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2430 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2431 return ndlp->nlp_state; 2432 } 2433 2434 static uint32_t 2435 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2436 void *arg, uint32_t evt) 2437 { 2438 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2439 struct ls_rjt stat; 2440 2441 memset(&stat, 0, sizeof(struct ls_rjt)); 2442 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2443 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2444 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2445 return ndlp->nlp_state; 2446 } 2447 2448 static uint32_t 2449 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2450 void *arg, uint32_t evt) 2451 { 2452 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2453 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2454 clear_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2455 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2456 lpfc_disc_set_adisc(vport, ndlp); 2457 return ndlp->nlp_state; 2458 } 2459 2460 static uint32_t 2461 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2462 void *arg, uint32_t evt) 2463 { 2464 /* 2465 * DevLoss has timed out and is calling for Device Remove. 2466 * In this case, abort the LOGO and cleanup the ndlp 2467 */ 2468 2469 lpfc_unreg_rpi(vport, ndlp); 2470 /* software abort outstanding PLOGI */ 2471 lpfc_els_abort(vport->phba, ndlp); 2472 lpfc_drop_node(vport, ndlp); 2473 return NLP_STE_FREED_NODE; 2474 } 2475 2476 static uint32_t 2477 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2478 struct lpfc_nodelist *ndlp, 2479 void *arg, uint32_t evt) 2480 { 2481 /* 2482 * Device Recovery events have no meaning for a node with a LOGO 2483 * outstanding. The LOGO has to complete first and handle the 2484 * node from that point. 2485 */ 2486 return ndlp->nlp_state; 2487 } 2488 2489 static uint32_t 2490 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2491 void *arg, uint32_t evt) 2492 { 2493 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2494 2495 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2496 return ndlp->nlp_state; 2497 } 2498 2499 static uint32_t 2500 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2501 void *arg, uint32_t evt) 2502 { 2503 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2504 2505 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2506 return ndlp->nlp_state; 2507 2508 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2509 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2510 return ndlp->nlp_state; 2511 } 2512 2513 static uint32_t 2514 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2515 void *arg, uint32_t evt) 2516 { 2517 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2518 2519 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2520 return ndlp->nlp_state; 2521 } 2522 2523 static uint32_t 2524 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2525 void *arg, uint32_t evt) 2526 { 2527 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2528 2529 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2530 return ndlp->nlp_state; 2531 } 2532 2533 static uint32_t 2534 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2535 void *arg, uint32_t evt) 2536 { 2537 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2538 2539 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2540 return ndlp->nlp_state; 2541 } 2542 2543 static uint32_t 2544 lpfc_device_rm_unmap_node(struct lpfc_vport *vport, 2545 struct lpfc_nodelist *ndlp, 2546 void *arg, 2547 uint32_t evt) 2548 { 2549 lpfc_drop_node(vport, ndlp); 2550 return NLP_STE_FREED_NODE; 2551 } 2552 2553 static uint32_t 2554 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2555 struct lpfc_nodelist *ndlp, 2556 void *arg, 2557 uint32_t evt) 2558 { 2559 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2560 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2561 clear_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2562 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2563 spin_lock_irq(&ndlp->lock); 2564 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2565 spin_unlock_irq(&ndlp->lock); 2566 lpfc_disc_set_adisc(vport, ndlp); 2567 2568 return ndlp->nlp_state; 2569 } 2570 2571 static uint32_t 2572 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2573 void *arg, uint32_t evt) 2574 { 2575 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2576 2577 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2578 return ndlp->nlp_state; 2579 } 2580 2581 static uint32_t 2582 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2583 void *arg, uint32_t evt) 2584 { 2585 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2586 2587 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2588 return ndlp->nlp_state; 2589 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2590 return ndlp->nlp_state; 2591 } 2592 2593 static uint32_t 2594 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2595 void *arg, uint32_t evt) 2596 { 2597 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2598 2599 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2600 return ndlp->nlp_state; 2601 } 2602 2603 static uint32_t 2604 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2605 struct lpfc_nodelist *ndlp, 2606 void *arg, uint32_t evt) 2607 { 2608 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2609 2610 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2611 return ndlp->nlp_state; 2612 } 2613 2614 static uint32_t 2615 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2616 void *arg, uint32_t evt) 2617 { 2618 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2619 2620 /* flush the target */ 2621 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2622 2623 /* Send PRLO_ACC */ 2624 set_bit(NLP_LOGO_ACC, &ndlp->nlp_flag); 2625 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2626 2627 /* Save ELS_CMD_PRLO as the last elscmd and then set to NPR. 2628 * lpfc_cmpl_els_logo_acc is expected to restart discovery. 2629 */ 2630 ndlp->nlp_last_elscmd = ELS_CMD_PRLO; 2631 ndlp->nlp_prev_state = ndlp->nlp_state; 2632 2633 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_ELS | LOG_DISCOVERY, 2634 "3422 DID x%06x nflag x%lx lastels x%x ref cnt %u\n", 2635 ndlp->nlp_DID, ndlp->nlp_flag, 2636 ndlp->nlp_last_elscmd, 2637 kref_read(&ndlp->kref)); 2638 2639 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2640 2641 return ndlp->nlp_state; 2642 } 2643 2644 static uint32_t 2645 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2646 struct lpfc_nodelist *ndlp, 2647 void *arg, 2648 uint32_t evt) 2649 { 2650 lpfc_disc_set_adisc(vport, ndlp); 2651 2652 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2653 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2654 clear_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2655 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2656 spin_lock_irq(&ndlp->lock); 2657 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2658 spin_unlock_irq(&ndlp->lock); 2659 return ndlp->nlp_state; 2660 } 2661 2662 static uint32_t 2663 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2664 void *arg, uint32_t evt) 2665 { 2666 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2667 2668 /* Ignore PLOGI if we have an outstanding LOGO */ 2669 if (test_bit(NLP_LOGO_SND, &ndlp->nlp_flag) || 2670 test_bit(NLP_LOGO_ACC, &ndlp->nlp_flag)) 2671 return ndlp->nlp_state; 2672 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2673 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2674 clear_bit(NLP_NPR_ADISC, &ndlp->nlp_flag); 2675 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2676 } else if (!test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 2677 /* send PLOGI immediately, move to PLOGI issue state */ 2678 if (!test_bit(NLP_DELAY_TMO, &ndlp->nlp_flag)) { 2679 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2680 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2681 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2682 } 2683 } 2684 return ndlp->nlp_state; 2685 } 2686 2687 static uint32_t 2688 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2689 void *arg, uint32_t evt) 2690 { 2691 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2692 struct ls_rjt stat; 2693 2694 memset(&stat, 0, sizeof (struct ls_rjt)); 2695 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2696 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2697 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2698 2699 if (!test_bit(NLP_DELAY_TMO, &ndlp->nlp_flag)) { 2700 /* 2701 * ADISC nodes will be handled in regular discovery path after 2702 * receiving response from NS. 2703 * 2704 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2705 */ 2706 if (!test_bit(NLP_NPR_ADISC, &ndlp->nlp_flag)) { 2707 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2708 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2709 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2710 } 2711 } 2712 return ndlp->nlp_state; 2713 } 2714 2715 static uint32_t 2716 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2717 void *arg, uint32_t evt) 2718 { 2719 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2720 2721 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2722 return ndlp->nlp_state; 2723 } 2724 2725 static uint32_t 2726 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2727 void *arg, uint32_t evt) 2728 { 2729 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2730 2731 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2732 /* 2733 * Do not start discovery if discovery is about to start 2734 * or discovery in progress for this node. Starting discovery 2735 * here will affect the counting of discovery threads. 2736 */ 2737 if (!test_bit(NLP_DELAY_TMO, &ndlp->nlp_flag) && 2738 !test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 2739 /* 2740 * ADISC nodes will be handled in regular discovery path after 2741 * receiving response from NS. 2742 * 2743 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2744 */ 2745 if (!test_bit(NLP_NPR_ADISC, &ndlp->nlp_flag)) { 2746 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2747 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2748 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2749 } 2750 } 2751 return ndlp->nlp_state; 2752 } 2753 2754 static uint32_t 2755 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2756 void *arg, uint32_t evt) 2757 { 2758 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2759 2760 set_bit(NLP_LOGO_ACC, &ndlp->nlp_flag); 2761 2762 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2763 2764 if (!test_bit(NLP_DELAY_TMO, &ndlp->nlp_flag)) { 2765 mod_timer(&ndlp->nlp_delayfunc, 2766 jiffies + secs_to_jiffies(1)); 2767 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 2768 clear_bit(NLP_NPR_ADISC, &ndlp->nlp_flag); 2769 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2770 } else { 2771 clear_bit(NLP_NPR_ADISC, &ndlp->nlp_flag); 2772 } 2773 return ndlp->nlp_state; 2774 } 2775 2776 static uint32_t 2777 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2778 void *arg, uint32_t evt) 2779 { 2780 struct lpfc_hba *phba = vport->phba; 2781 struct lpfc_iocbq *cmdiocb, *rspiocb; 2782 u32 ulp_status; 2783 2784 cmdiocb = (struct lpfc_iocbq *) arg; 2785 rspiocb = cmdiocb->rsp_iocb; 2786 2787 ulp_status = get_job_ulpstatus(phba, rspiocb); 2788 2789 if (ulp_status) 2790 return NLP_STE_FREED_NODE; 2791 2792 return ndlp->nlp_state; 2793 } 2794 2795 static uint32_t 2796 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2797 void *arg, uint32_t evt) 2798 { 2799 struct lpfc_hba *phba = vport->phba; 2800 struct lpfc_iocbq *cmdiocb, *rspiocb; 2801 u32 ulp_status; 2802 2803 cmdiocb = (struct lpfc_iocbq *) arg; 2804 rspiocb = cmdiocb->rsp_iocb; 2805 2806 ulp_status = get_job_ulpstatus(phba, rspiocb); 2807 2808 if (ulp_status && test_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag)) { 2809 lpfc_drop_node(vport, ndlp); 2810 return NLP_STE_FREED_NODE; 2811 } 2812 return ndlp->nlp_state; 2813 } 2814 2815 static uint32_t 2816 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2817 void *arg, uint32_t evt) 2818 { 2819 /* For the fabric port just clear the fc flags. */ 2820 if (ndlp->nlp_DID == Fabric_DID) { 2821 clear_bit(FC_FABRIC, &vport->fc_flag); 2822 clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag); 2823 } 2824 lpfc_unreg_rpi(vport, ndlp); 2825 return ndlp->nlp_state; 2826 } 2827 2828 static uint32_t 2829 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2830 void *arg, uint32_t evt) 2831 { 2832 struct lpfc_hba *phba = vport->phba; 2833 struct lpfc_iocbq *cmdiocb, *rspiocb; 2834 u32 ulp_status; 2835 2836 cmdiocb = (struct lpfc_iocbq *) arg; 2837 rspiocb = cmdiocb->rsp_iocb; 2838 2839 ulp_status = get_job_ulpstatus(phba, rspiocb); 2840 2841 if (ulp_status && test_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag)) { 2842 lpfc_drop_node(vport, ndlp); 2843 return NLP_STE_FREED_NODE; 2844 } 2845 return ndlp->nlp_state; 2846 } 2847 2848 static uint32_t 2849 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2850 struct lpfc_nodelist *ndlp, 2851 void *arg, uint32_t evt) 2852 { 2853 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2854 MAILBOX_t *mb = &pmb->u.mb; 2855 2856 if (!mb->mbxStatus) { 2857 /* SLI4 ports have preallocated logical rpis. */ 2858 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2859 ndlp->nlp_rpi = mb->un.varWords[0]; 2860 set_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag); 2861 if (test_bit(NLP_LOGO_ACC, &ndlp->nlp_flag)) 2862 lpfc_unreg_rpi(vport, ndlp); 2863 } else { 2864 if (test_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag)) { 2865 lpfc_drop_node(vport, ndlp); 2866 return NLP_STE_FREED_NODE; 2867 } 2868 } 2869 return ndlp->nlp_state; 2870 } 2871 2872 static uint32_t 2873 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2874 void *arg, uint32_t evt) 2875 { 2876 if (test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 2877 set_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2878 return ndlp->nlp_state; 2879 } 2880 lpfc_drop_node(vport, ndlp); 2881 return NLP_STE_FREED_NODE; 2882 } 2883 2884 static uint32_t 2885 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2886 void *arg, uint32_t evt) 2887 { 2888 /* Don't do anything that disrupts the RSCN unless lpfc is unloading. */ 2889 if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag)) 2890 return ndlp->nlp_state; 2891 2892 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2893 clear_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2894 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2895 spin_lock_irq(&ndlp->lock); 2896 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2897 spin_unlock_irq(&ndlp->lock); 2898 return ndlp->nlp_state; 2899 } 2900 2901 2902 /* This next section defines the NPort Discovery State Machine */ 2903 2904 /* There are 4 different double linked lists nodelist entries can reside on. 2905 * The plogi list and adisc list are used when Link Up discovery or RSCN 2906 * processing is needed. Each list holds the nodes that we will send PLOGI 2907 * or ADISC on. These lists will keep track of what nodes will be effected 2908 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2909 * The unmapped_list will contain all nodes that we have successfully logged 2910 * into at the Fibre Channel level. The mapped_list will contain all nodes 2911 * that are mapped FCP targets. 2912 */ 2913 /* 2914 * The bind list is a list of undiscovered (potentially non-existent) nodes 2915 * that we have saved binding information on. This information is used when 2916 * nodes transition from the unmapped to the mapped list. 2917 */ 2918 /* For UNUSED_NODE state, the node has just been allocated . 2919 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2920 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2921 * and put on the unmapped list. For ADISC processing, the node is taken off 2922 * the ADISC list and placed on either the mapped or unmapped list (depending 2923 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2924 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2925 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2926 * node, the node is taken off the unmapped list. The binding list is checked 2927 * for a valid binding, or a binding is automatically assigned. If binding 2928 * assignment is unsuccessful, the node is left on the unmapped list. If 2929 * binding assignment is successful, the associated binding list entry (if 2930 * any) is removed, and the node is placed on the mapped list. 2931 */ 2932 /* 2933 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2934 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2935 * expire, all effected nodes will receive a DEVICE_RM event. 2936 */ 2937 /* 2938 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2939 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2940 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2941 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2942 * we will first process the ADISC list. 32 entries are processed initially and 2943 * ADISC is initited for each one. Completions / Events for each node are 2944 * funnelled thru the state machine. As each node finishes ADISC processing, it 2945 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2946 * waiting, and the ADISC list count is identically 0, then we are done. For 2947 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2948 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2949 * list. 32 entries are processed initially and PLOGI is initited for each one. 2950 * Completions / Events for each node are funnelled thru the state machine. As 2951 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2952 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2953 * indentically 0, then we are done. We have now completed discovery / RSCN 2954 * handling. Upon completion, ALL nodes should be on either the mapped or 2955 * unmapped lists. 2956 */ 2957 2958 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2959 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2960 /* Action routine Event Current State */ 2961 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2962 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2963 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2964 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2965 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2966 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2967 lpfc_disc_illegal, /* CMPL_PLOGI */ 2968 lpfc_disc_illegal, /* CMPL_PRLI */ 2969 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2970 lpfc_disc_illegal, /* CMPL_ADISC */ 2971 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2972 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2973 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2974 2975 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2976 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2977 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2978 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2979 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2980 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2981 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2982 lpfc_disc_illegal, /* CMPL_PRLI */ 2983 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2984 lpfc_disc_illegal, /* CMPL_ADISC */ 2985 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2986 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2987 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2988 2989 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2990 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 2991 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 2992 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 2993 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 2994 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 2995 lpfc_disc_illegal, /* CMPL_PLOGI */ 2996 lpfc_disc_illegal, /* CMPL_PRLI */ 2997 lpfc_disc_illegal, /* CMPL_LOGO */ 2998 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 2999 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3000 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 3001 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 3002 3003 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 3004 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 3005 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 3006 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 3007 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 3008 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 3009 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3010 lpfc_disc_illegal, /* CMPL_PRLI */ 3011 lpfc_disc_illegal, /* CMPL_LOGO */ 3012 lpfc_disc_illegal, /* CMPL_ADISC */ 3013 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 3014 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 3015 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 3016 3017 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 3018 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 3019 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 3020 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 3021 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 3022 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 3023 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3024 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 3025 lpfc_disc_illegal, /* CMPL_LOGO */ 3026 lpfc_disc_illegal, /* CMPL_ADISC */ 3027 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3028 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 3029 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 3030 3031 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 3032 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 3033 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 3034 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 3035 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 3036 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 3037 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3038 lpfc_disc_illegal, /* CMPL_PRLI */ 3039 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 3040 lpfc_disc_illegal, /* CMPL_ADISC */ 3041 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3042 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 3043 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 3044 3045 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 3046 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 3047 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 3048 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 3049 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 3050 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 3051 lpfc_disc_illegal, /* CMPL_PLOGI */ 3052 lpfc_disc_illegal, /* CMPL_PRLI */ 3053 lpfc_disc_illegal, /* CMPL_LOGO */ 3054 lpfc_disc_illegal, /* CMPL_ADISC */ 3055 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3056 lpfc_device_rm_unmap_node, /* DEVICE_RM */ 3057 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 3058 3059 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 3060 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 3061 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 3062 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 3063 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 3064 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 3065 lpfc_disc_illegal, /* CMPL_PLOGI */ 3066 lpfc_disc_illegal, /* CMPL_PRLI */ 3067 lpfc_disc_illegal, /* CMPL_LOGO */ 3068 lpfc_disc_illegal, /* CMPL_ADISC */ 3069 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3070 lpfc_disc_illegal, /* DEVICE_RM */ 3071 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 3072 3073 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 3074 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 3075 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 3076 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 3077 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 3078 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 3079 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 3080 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 3081 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 3082 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 3083 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 3084 lpfc_device_rm_npr_node, /* DEVICE_RM */ 3085 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 3086 }; 3087 3088 int 3089 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3090 void *arg, uint32_t evt) 3091 { 3092 uint32_t cur_state, rc; 3093 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 3094 uint32_t); 3095 uint32_t got_ndlp = 0; 3096 uint32_t data1; 3097 3098 if (lpfc_nlp_get(ndlp)) 3099 got_ndlp = 1; 3100 3101 cur_state = ndlp->nlp_state; 3102 3103 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3104 ((uint32_t)ndlp->nlp_type)); 3105 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 3106 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3107 "0211 DSM in event x%x on NPort x%x in " 3108 "state %d rpi x%x Data: x%lx x%x\n", 3109 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, 3110 ndlp->nlp_flag, data1); 3111 3112 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3113 "DSM in: evt:%d ste:%d did:x%x", 3114 evt, cur_state, ndlp->nlp_DID); 3115 3116 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 3117 rc = (func) (vport, ndlp, arg, evt); 3118 3119 /* DSM out state <rc> on NPort <nlp_DID> */ 3120 if (got_ndlp) { 3121 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3122 ((uint32_t)ndlp->nlp_type)); 3123 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3124 "0212 DSM out state %d on NPort x%x " 3125 "rpi x%x Data: x%lx x%x\n", 3126 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag, 3127 data1); 3128 3129 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3130 "DSM out: ste:%d did:x%x flg:x%lx", 3131 rc, ndlp->nlp_DID, ndlp->nlp_flag); 3132 /* Decrement the ndlp reference count held for this function */ 3133 lpfc_nlp_put(ndlp); 3134 } else { 3135 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3136 "0213 DSM out state %d on NPort free\n", rc); 3137 3138 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3139 "DSM out: ste:%d did:x%x flg:x%x", 3140 rc, 0, 0); 3141 } 3142 3143 return rc; 3144 } 3145