1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2024 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/pci.h> 26 #include <linux/slab.h> 27 #include <linux/interrupt.h> 28 29 #include <scsi/scsi.h> 30 #include <scsi/scsi_device.h> 31 #include <scsi/scsi_host.h> 32 #include <scsi/scsi_transport_fc.h> 33 #include <scsi/fc/fc_fs.h> 34 35 #include "lpfc_hw4.h" 36 #include "lpfc_hw.h" 37 #include "lpfc_sli.h" 38 #include "lpfc_sli4.h" 39 #include "lpfc_nl.h" 40 #include "lpfc_disc.h" 41 #include "lpfc.h" 42 #include "lpfc_scsi.h" 43 #include "lpfc_nvme.h" 44 #include "lpfc_logmsg.h" 45 #include "lpfc_crtn.h" 46 #include "lpfc_vport.h" 47 #include "lpfc_debugfs.h" 48 49 50 /* Called to clear RSCN discovery flags when driver is unloading. */ 51 static bool 52 lpfc_check_unload_and_clr_rscn(unsigned long *fc_flag) 53 { 54 /* If unloading, then clear the FC_RSCN_DEFERRED flag */ 55 if (test_bit(FC_UNLOADING, fc_flag)) { 56 clear_bit(FC_RSCN_DEFERRED, fc_flag); 57 return false; 58 } 59 return test_bit(FC_RSCN_DEFERRED, fc_flag); 60 } 61 62 /* Called to verify a rcv'ed ADISC was intended for us. */ 63 static int 64 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 65 struct lpfc_name *nn, struct lpfc_name *pn) 66 { 67 /* First, we MUST have a RPI registered */ 68 if (!test_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag)) 69 return 0; 70 71 /* Compare the ADISC rsp WWNN / WWPN matches our internal node 72 * table entry for that node. 73 */ 74 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) 75 return 0; 76 77 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) 78 return 0; 79 80 /* we match, return success */ 81 return 1; 82 } 83 84 int 85 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 86 struct serv_parm *sp, uint32_t class, int flogi) 87 { 88 volatile struct serv_parm *hsp = &vport->fc_sparam; 89 uint16_t hsp_value, ssp_value = 0; 90 91 /* 92 * The receive data field size and buffer-to-buffer receive data field 93 * size entries are 16 bits but are represented as two 8-bit fields in 94 * the driver data structure to account for rsvd bits and other control 95 * bits. Reconstruct and compare the fields as a 16-bit values before 96 * correcting the byte values. 97 */ 98 if (sp->cls1.classValid) { 99 if (!flogi) { 100 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) | 101 hsp->cls1.rcvDataSizeLsb); 102 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) | 103 sp->cls1.rcvDataSizeLsb); 104 if (!ssp_value) 105 goto bad_service_param; 106 if (ssp_value > hsp_value) { 107 sp->cls1.rcvDataSizeLsb = 108 hsp->cls1.rcvDataSizeLsb; 109 sp->cls1.rcvDataSizeMsb = 110 hsp->cls1.rcvDataSizeMsb; 111 } 112 } 113 } else if (class == CLASS1) 114 goto bad_service_param; 115 if (sp->cls2.classValid) { 116 if (!flogi) { 117 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) | 118 hsp->cls2.rcvDataSizeLsb); 119 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) | 120 sp->cls2.rcvDataSizeLsb); 121 if (!ssp_value) 122 goto bad_service_param; 123 if (ssp_value > hsp_value) { 124 sp->cls2.rcvDataSizeLsb = 125 hsp->cls2.rcvDataSizeLsb; 126 sp->cls2.rcvDataSizeMsb = 127 hsp->cls2.rcvDataSizeMsb; 128 } 129 } 130 } else if (class == CLASS2) 131 goto bad_service_param; 132 if (sp->cls3.classValid) { 133 if (!flogi) { 134 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) | 135 hsp->cls3.rcvDataSizeLsb); 136 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) | 137 sp->cls3.rcvDataSizeLsb); 138 if (!ssp_value) 139 goto bad_service_param; 140 if (ssp_value > hsp_value) { 141 sp->cls3.rcvDataSizeLsb = 142 hsp->cls3.rcvDataSizeLsb; 143 sp->cls3.rcvDataSizeMsb = 144 hsp->cls3.rcvDataSizeMsb; 145 } 146 } 147 } else if (class == CLASS3) 148 goto bad_service_param; 149 150 /* 151 * Preserve the upper four bits of the MSB from the PLOGI response. 152 * These bits contain the Buffer-to-Buffer State Change Number 153 * from the target and need to be passed to the FW. 154 */ 155 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; 156 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; 157 if (ssp_value > hsp_value) { 158 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; 159 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | 160 (hsp->cmn.bbRcvSizeMsb & 0x0F); 161 } 162 163 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); 164 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); 165 return 1; 166 bad_service_param: 167 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 168 "0207 Device %x " 169 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 170 "invalid service parameters. Ignoring device.\n", 171 ndlp->nlp_DID, 172 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 173 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 174 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 175 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 176 return 0; 177 } 178 179 static void * 180 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 181 struct lpfc_iocbq *rspiocb) 182 { 183 struct lpfc_dmabuf *pcmd, *prsp; 184 uint32_t *lp; 185 void *ptr = NULL; 186 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 187 188 pcmd = cmdiocb->cmd_dmabuf; 189 190 /* For lpfc_els_abort, cmd_dmabuf could be zero'ed to delay 191 * freeing associated memory till after ABTS completes. 192 */ 193 if (pcmd) { 194 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, 195 list); 196 if (prsp) { 197 lp = (uint32_t *) prsp->virt; 198 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); 199 } 200 } else { 201 /* Force ulp_status error since we are returning NULL ptr */ 202 if (!(ulp_status)) { 203 if (phba->sli_rev == LPFC_SLI_REV4) { 204 bf_set(lpfc_wcqe_c_status, &rspiocb->wcqe_cmpl, 205 IOSTAT_LOCAL_REJECT); 206 rspiocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED; 207 } else { 208 rspiocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; 209 rspiocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED; 210 } 211 } 212 ptr = NULL; 213 } 214 return ptr; 215 } 216 217 218 219 /* 220 * Free resources / clean up outstanding I/Os 221 * associated with a LPFC_NODELIST entry. This 222 * routine effectively results in a "software abort". 223 */ 224 void 225 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 226 { 227 LIST_HEAD(abort_list); 228 LIST_HEAD(drv_cmpl_list); 229 struct lpfc_sli_ring *pring; 230 struct lpfc_iocbq *iocb, *next_iocb; 231 int retval = 0; 232 233 pring = lpfc_phba_elsring(phba); 234 235 /* In case of error recovery path, we might have a NULL pring here */ 236 if (unlikely(!pring)) 237 return; 238 239 /* Abort outstanding I/O on NPort <nlp_DID> */ 240 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, 241 "2819 Abort outstanding I/O on NPort x%x " 242 "Data: x%lx x%x x%x\n", 243 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 244 ndlp->nlp_rpi); 245 /* Clean up all fabric IOs first.*/ 246 lpfc_fabric_abort_nport(ndlp); 247 248 /* 249 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list 250 * of all ELS IOs that need an ABTS. The IOs need to stay on the 251 * txcmplq so that the abort operation completes them successfully. 252 */ 253 spin_lock_irq(&phba->hbalock); 254 if (phba->sli_rev == LPFC_SLI_REV4) 255 spin_lock(&pring->ring_lock); 256 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 257 /* Add to abort_list on on NDLP match. */ 258 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 259 list_add_tail(&iocb->dlist, &abort_list); 260 } 261 if (phba->sli_rev == LPFC_SLI_REV4) 262 spin_unlock(&pring->ring_lock); 263 spin_unlock_irq(&phba->hbalock); 264 265 /* Abort the targeted IOs and remove them from the abort list. */ 266 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) { 267 spin_lock_irq(&phba->hbalock); 268 list_del_init(&iocb->dlist); 269 retval = lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL); 270 spin_unlock_irq(&phba->hbalock); 271 272 if (retval && test_bit(FC_UNLOADING, &phba->pport->load_flag)) { 273 list_del_init(&iocb->list); 274 list_add_tail(&iocb->list, &drv_cmpl_list); 275 } 276 } 277 278 lpfc_sli_cancel_iocbs(phba, &drv_cmpl_list, IOSTAT_LOCAL_REJECT, 279 IOERR_SLI_ABORTED); 280 281 /* Make sure HBA is alive */ 282 lpfc_issue_hb_tmo(phba); 283 284 INIT_LIST_HEAD(&abort_list); 285 286 /* Now process the txq */ 287 spin_lock_irq(&phba->hbalock); 288 if (phba->sli_rev == LPFC_SLI_REV4) 289 spin_lock(&pring->ring_lock); 290 291 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 292 /* Check to see if iocb matches the nport we are looking for */ 293 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 294 list_del_init(&iocb->list); 295 list_add_tail(&iocb->list, &abort_list); 296 } 297 } 298 299 if (phba->sli_rev == LPFC_SLI_REV4) 300 spin_unlock(&pring->ring_lock); 301 spin_unlock_irq(&phba->hbalock); 302 303 /* Cancel all the IOCBs from the completions list */ 304 lpfc_sli_cancel_iocbs(phba, &abort_list, 305 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 306 307 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 308 } 309 310 /* lpfc_defer_plogi_acc - Issue PLOGI ACC after reg_login completes 311 * @phba: pointer to lpfc hba data structure. 312 * @login_mbox: pointer to REG_RPI mailbox object 313 * 314 * The ACC for a rcv'ed PLOGI is deferred until AFTER the REG_RPI completes 315 */ 316 static void 317 lpfc_defer_plogi_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *login_mbox) 318 { 319 struct lpfc_iocbq *save_iocb; 320 struct lpfc_nodelist *ndlp; 321 MAILBOX_t *mb = &login_mbox->u.mb; 322 323 int rc; 324 325 ndlp = login_mbox->ctx_ndlp; 326 save_iocb = login_mbox->ctx_u.save_iocb; 327 328 if (mb->mbxStatus == MBX_SUCCESS) { 329 /* Now that REG_RPI completed successfully, 330 * we can now proceed with sending the PLOGI ACC. 331 */ 332 rc = lpfc_els_rsp_acc(login_mbox->vport, ELS_CMD_PLOGI, 333 save_iocb, ndlp, NULL); 334 if (rc) { 335 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 336 "4576 PLOGI ACC fails pt2pt discovery: " 337 "DID %x Data: %x\n", ndlp->nlp_DID, rc); 338 } 339 } 340 341 /* Now process the REG_RPI cmpl */ 342 lpfc_mbx_cmpl_reg_login(phba, login_mbox); 343 clear_bit(NLP_ACC_REGLOGIN, &ndlp->nlp_flag); 344 kfree(save_iocb); 345 } 346 347 static int 348 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 349 struct lpfc_iocbq *cmdiocb) 350 { 351 struct lpfc_hba *phba = vport->phba; 352 struct lpfc_dmabuf *pcmd; 353 uint64_t nlp_portwwn = 0; 354 uint32_t *lp; 355 union lpfc_wqe128 *wqe; 356 IOCB_t *icmd; 357 struct serv_parm *sp; 358 uint32_t ed_tov; 359 LPFC_MBOXQ_t *link_mbox; 360 LPFC_MBOXQ_t *login_mbox; 361 struct lpfc_iocbq *save_iocb; 362 struct ls_rjt stat; 363 uint32_t vid, flag; 364 int rc; 365 u32 remote_did; 366 367 memset(&stat, 0, sizeof (struct ls_rjt)); 368 pcmd = cmdiocb->cmd_dmabuf; 369 lp = (uint32_t *) pcmd->virt; 370 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 371 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 372 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 373 "0140 PLOGI Reject: invalid pname\n"); 374 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 375 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 376 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 377 NULL); 378 return 0; 379 } 380 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 381 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 382 "0141 PLOGI Reject: invalid nname\n"); 383 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 384 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 385 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 386 NULL); 387 return 0; 388 } 389 390 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 391 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 392 /* Reject this request because invalid parameters */ 393 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 394 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 395 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 396 NULL); 397 return 0; 398 } 399 400 if (phba->sli_rev == LPFC_SLI_REV4) 401 wqe = &cmdiocb->wqe; 402 else 403 icmd = &cmdiocb->iocb; 404 405 /* PLOGI chkparm OK */ 406 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 407 "0114 PLOGI chkparm OK Data: x%x x%x x%lx " 408 "x%x x%x x%lx\n", 409 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 410 ndlp->nlp_rpi, vport->port_state, 411 vport->fc_flag); 412 413 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 414 ndlp->nlp_fcp_info |= CLASS2; 415 else 416 ndlp->nlp_fcp_info |= CLASS3; 417 418 ndlp->nlp_class_sup = 0; 419 if (sp->cls1.classValid) 420 ndlp->nlp_class_sup |= FC_COS_CLASS1; 421 if (sp->cls2.classValid) 422 ndlp->nlp_class_sup |= FC_COS_CLASS2; 423 if (sp->cls3.classValid) 424 ndlp->nlp_class_sup |= FC_COS_CLASS3; 425 if (sp->cls4.classValid) 426 ndlp->nlp_class_sup |= FC_COS_CLASS4; 427 ndlp->nlp_maxframe = 428 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 429 /* if already logged in, do implicit logout */ 430 switch (ndlp->nlp_state) { 431 case NLP_STE_NPR_NODE: 432 if (!test_bit(NLP_NPR_ADISC, &ndlp->nlp_flag)) 433 break; 434 fallthrough; 435 case NLP_STE_REG_LOGIN_ISSUE: 436 case NLP_STE_PRLI_ISSUE: 437 case NLP_STE_UNMAPPED_NODE: 438 case NLP_STE_MAPPED_NODE: 439 /* For initiators, lpfc_plogi_confirm_nport skips fabric did. 440 * For target mode, execute implicit logo. 441 * Fabric nodes go into NPR. 442 */ 443 if (!(ndlp->nlp_type & NLP_FABRIC) && 444 !(phba->nvmet_support)) { 445 /* Clear ndlp info, since follow up PRLI may have 446 * updated ndlp information 447 */ 448 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 449 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 450 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 451 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 452 clear_bit(NLP_FIRSTBURST, &ndlp->nlp_flag); 453 454 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 455 ndlp, NULL); 456 return 1; 457 } 458 if (nlp_portwwn != 0 && 459 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 460 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 461 "0143 PLOGI recv'd from DID: x%x " 462 "WWPN changed: old %llx new %llx\n", 463 ndlp->nlp_DID, 464 (unsigned long long)nlp_portwwn, 465 (unsigned long long) 466 wwn_to_u64(sp->portName.u.wwn)); 467 468 /* Notify transport of connectivity loss to trigger cleanup. */ 469 if (phba->nvmet_support && 470 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 471 lpfc_nvmet_invalidate_host(phba, ndlp); 472 473 ndlp->nlp_prev_state = ndlp->nlp_state; 474 /* rport needs to be unregistered first */ 475 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 476 break; 477 } 478 479 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 480 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 481 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 482 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 483 clear_bit(NLP_FIRSTBURST, &ndlp->nlp_flag); 484 485 login_mbox = NULL; 486 link_mbox = NULL; 487 save_iocb = NULL; 488 489 /* Check for Nport to NPort pt2pt protocol */ 490 if (test_bit(FC_PT2PT, &vport->fc_flag) && 491 !test_bit(FC_PT2PT_PLOGI, &vport->fc_flag)) { 492 /* rcv'ed PLOGI decides what our NPortId will be */ 493 if (phba->sli_rev == LPFC_SLI_REV4) { 494 vport->fc_myDID = bf_get(els_rsp64_sid, 495 &cmdiocb->wqe.xmit_els_rsp); 496 } else { 497 vport->fc_myDID = icmd->un.rcvels.parmRo; 498 } 499 500 /* If there is an outstanding FLOGI, abort it now. 501 * The remote NPort is not going to ACC our FLOGI 502 * if its already issuing a PLOGI for pt2pt mode. 503 * This indicates our FLOGI was dropped; however, we 504 * must have ACCed the remote NPorts FLOGI to us 505 * to make it here. 506 */ 507 if (test_bit(HBA_FLOGI_OUTSTANDING, &phba->hba_flag)) 508 lpfc_els_abort_flogi(phba); 509 510 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 511 if (sp->cmn.edtovResolution) { 512 /* E_D_TOV ticks are in nanoseconds */ 513 ed_tov = (phba->fc_edtov + 999999) / 1000000; 514 } 515 516 /* 517 * For pt-to-pt, use the larger EDTOV 518 * RATOV = 2 * EDTOV 519 */ 520 if (ed_tov > phba->fc_edtov) 521 phba->fc_edtov = ed_tov; 522 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 523 524 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 525 526 /* Issue CONFIG_LINK for SLI3 or REG_VFI for SLI4, 527 * to account for updated TOV's / parameters 528 */ 529 if (phba->sli_rev == LPFC_SLI_REV4) 530 lpfc_issue_reg_vfi(vport); 531 else { 532 link_mbox = mempool_alloc(phba->mbox_mem_pool, 533 GFP_KERNEL); 534 if (!link_mbox) 535 goto out; 536 lpfc_config_link(phba, link_mbox); 537 link_mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 538 link_mbox->vport = vport; 539 540 /* The default completion handling for CONFIG_LINK 541 * does not require the ndlp so no reference is needed. 542 */ 543 link_mbox->ctx_ndlp = ndlp; 544 545 rc = lpfc_sli_issue_mbox(phba, link_mbox, MBX_NOWAIT); 546 if (rc == MBX_NOT_FINISHED) { 547 mempool_free(link_mbox, phba->mbox_mem_pool); 548 goto out; 549 } 550 } 551 552 lpfc_can_disctmo(vport); 553 } 554 555 clear_bit(NLP_SUPPRESS_RSP, &ndlp->nlp_flag); 556 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 557 sp->cmn.valid_vendor_ver_level) { 558 vid = be32_to_cpu(sp->un.vv.vid); 559 flag = be32_to_cpu(sp->un.vv.flags); 560 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) 561 set_bit(NLP_SUPPRESS_RSP, &ndlp->nlp_flag); 562 } 563 564 login_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 565 if (!login_mbox) 566 goto out; 567 568 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL); 569 if (!save_iocb) 570 goto out; 571 572 /* Save info from cmd IOCB to be used in rsp after all mbox completes */ 573 memcpy((uint8_t *)save_iocb, (uint8_t *)cmdiocb, 574 sizeof(struct lpfc_iocbq)); 575 576 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 577 if (phba->sli_rev == LPFC_SLI_REV4) 578 lpfc_unreg_rpi(vport, ndlp); 579 580 /* Issue REG_LOGIN first, before ACCing the PLOGI, thus we will 581 * always be deferring the ACC. 582 */ 583 if (phba->sli_rev == LPFC_SLI_REV4) 584 remote_did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest); 585 else 586 remote_did = icmd->un.rcvels.remoteID; 587 rc = lpfc_reg_rpi(phba, vport->vpi, remote_did, 588 (uint8_t *)sp, login_mbox, ndlp->nlp_rpi); 589 if (rc) 590 goto out; 591 592 login_mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 593 login_mbox->vport = vport; 594 595 /* 596 * If there is an outstanding PLOGI issued, abort it before 597 * sending ACC rsp for received PLOGI. If pending plogi 598 * is not canceled here, the plogi will be rejected by 599 * remote port and will be retried. On a configuration with 600 * single discovery thread, this will cause a huge delay in 601 * discovery. Also this will cause multiple state machines 602 * running in parallel for this node. 603 * This only applies to a fabric environment. 604 */ 605 if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) && 606 test_bit(FC_FABRIC, &vport->fc_flag)) { 607 /* software abort outstanding PLOGI */ 608 lpfc_els_abort(phba, ndlp); 609 } 610 611 if ((vport->port_type == LPFC_NPIV_PORT && 612 vport->cfg_restrict_login)) { 613 614 /* no deferred ACC */ 615 kfree(save_iocb); 616 617 /* This is an NPIV SLI4 instance that does not need to register 618 * a default RPI. 619 */ 620 if (phba->sli_rev == LPFC_SLI_REV4) { 621 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 622 MBOX_THD_UNLOCKED); 623 login_mbox = NULL; 624 } else { 625 /* In order to preserve RPIs, we want to cleanup 626 * the default RPI the firmware created to rcv 627 * this ELS request. The only way to do this is 628 * to register, then unregister the RPI. 629 */ 630 set_bit(NLP_RM_DFLT_RPI, &ndlp->nlp_flag); 631 set_bit(NLP_ACC_REGLOGIN, &ndlp->nlp_flag); 632 set_bit(NLP_RCV_PLOGI, &ndlp->nlp_flag); 633 } 634 635 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 636 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 637 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 638 ndlp, login_mbox); 639 if (rc && login_mbox) 640 lpfc_mbox_rsrc_cleanup(phba, login_mbox, 641 MBOX_THD_UNLOCKED); 642 return 1; 643 } 644 645 /* So the order here should be: 646 * SLI3 pt2pt 647 * Issue CONFIG_LINK mbox 648 * CONFIG_LINK cmpl 649 * SLI4 pt2pt 650 * Issue REG_VFI mbox 651 * REG_VFI cmpl 652 * SLI4 653 * Issue UNREG RPI mbx 654 * UNREG RPI cmpl 655 * Issue REG_RPI mbox 656 * REG RPI cmpl 657 * Issue PLOGI ACC 658 * PLOGI ACC cmpl 659 */ 660 login_mbox->mbox_cmpl = lpfc_defer_plogi_acc; 661 login_mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 662 if (!login_mbox->ctx_ndlp) 663 goto out; 664 665 login_mbox->ctx_u.save_iocb = save_iocb; /* For PLOGI ACC */ 666 667 set_bit(NLP_ACC_REGLOGIN, &ndlp->nlp_flag); 668 set_bit(NLP_RCV_PLOGI, &ndlp->nlp_flag); 669 670 /* Start the ball rolling by issuing REG_LOGIN here */ 671 rc = lpfc_sli_issue_mbox(phba, login_mbox, MBX_NOWAIT); 672 if (rc == MBX_NOT_FINISHED) { 673 lpfc_nlp_put(ndlp); 674 goto out; 675 } 676 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); 677 678 return 1; 679 out: 680 kfree(save_iocb); 681 if (login_mbox) 682 mempool_free(login_mbox, phba->mbox_mem_pool); 683 684 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 685 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 686 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 687 return 0; 688 } 689 690 /** 691 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 692 * @phba: pointer to lpfc hba data structure. 693 * @mboxq: pointer to mailbox object 694 * 695 * This routine is invoked to issue a completion to a rcv'ed 696 * ADISC or PDISC after the paused RPI has been resumed. 697 **/ 698 static void 699 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 700 { 701 struct lpfc_vport *vport; 702 struct lpfc_iocbq *elsiocb; 703 struct lpfc_nodelist *ndlp; 704 uint32_t cmd; 705 706 elsiocb = mboxq->ctx_u.save_iocb; 707 ndlp = mboxq->ctx_ndlp; 708 vport = mboxq->vport; 709 cmd = elsiocb->drvrTimeout; 710 711 if (cmd == ELS_CMD_ADISC) { 712 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 713 } else { 714 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 715 ndlp, NULL); 716 } 717 718 /* This nlp_put pairs with lpfc_sli4_resume_rpi */ 719 lpfc_nlp_put(ndlp); 720 721 kfree(elsiocb); 722 mempool_free(mboxq, phba->mbox_mem_pool); 723 } 724 725 static int 726 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 727 struct lpfc_iocbq *cmdiocb) 728 { 729 struct lpfc_hba *phba = vport->phba; 730 struct lpfc_iocbq *elsiocb; 731 struct lpfc_dmabuf *pcmd; 732 struct serv_parm *sp; 733 struct lpfc_name *pnn, *ppn; 734 struct ls_rjt stat; 735 ADISC *ap; 736 uint32_t *lp; 737 uint32_t cmd; 738 739 pcmd = cmdiocb->cmd_dmabuf; 740 lp = (uint32_t *) pcmd->virt; 741 742 cmd = *lp++; 743 if (cmd == ELS_CMD_ADISC) { 744 ap = (ADISC *) lp; 745 pnn = (struct lpfc_name *) & ap->nodeName; 746 ppn = (struct lpfc_name *) & ap->portName; 747 } else { 748 sp = (struct serv_parm *) lp; 749 pnn = (struct lpfc_name *) & sp->nodeName; 750 ppn = (struct lpfc_name *) & sp->portName; 751 } 752 753 if (get_job_ulpstatus(phba, cmdiocb) == 0 && 754 lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 755 756 /* 757 * As soon as we send ACC, the remote NPort can 758 * start sending us data. Thus, for SLI4 we must 759 * resume the RPI before the ACC goes out. 760 */ 761 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 762 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 763 GFP_KERNEL); 764 if (elsiocb) { 765 /* Save info from cmd IOCB used in rsp */ 766 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 767 sizeof(struct lpfc_iocbq)); 768 769 /* Save the ELS cmd */ 770 elsiocb->drvrTimeout = cmd; 771 772 if (lpfc_sli4_resume_rpi(ndlp, 773 lpfc_mbx_cmpl_resume_rpi, 774 elsiocb)) 775 kfree(elsiocb); 776 goto out; 777 } 778 } 779 780 if (cmd == ELS_CMD_ADISC) { 781 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 782 } else { 783 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 784 ndlp, NULL); 785 } 786 out: 787 /* If we are authenticated, move to the proper state. 788 * It is possible an ADISC arrived and the remote nport 789 * is already in MAPPED or UNMAPPED state. Catch this 790 * condition and don't set the nlp_state again because 791 * it causes an unnecessary transport unregister/register. 792 * 793 * Nodes marked for ADISC will move MAPPED or UNMAPPED state 794 * after issuing ADISC 795 */ 796 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 797 if ((ndlp->nlp_state != NLP_STE_MAPPED_NODE) && 798 !test_bit(NLP_NPR_ADISC, &ndlp->nlp_flag)) 799 lpfc_nlp_set_state(vport, ndlp, 800 NLP_STE_MAPPED_NODE); 801 } 802 803 return 1; 804 } 805 /* Reject this request because invalid parameters */ 806 stat.un.b.lsRjtRsvd0 = 0; 807 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 808 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 809 stat.un.b.vendorUnique = 0; 810 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 811 812 /* 1 sec timeout */ 813 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 814 815 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 816 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 817 ndlp->nlp_prev_state = ndlp->nlp_state; 818 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 819 return 0; 820 } 821 822 static int 823 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 824 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 825 { 826 struct lpfc_hba *phba = vport->phba; 827 struct lpfc_vport **vports; 828 int i, active_vlink_present = 0 ; 829 830 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 831 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 832 * PLOGIs during LOGO storms from a device. 833 */ 834 set_bit(NLP_LOGO_ACC, &ndlp->nlp_flag); 835 if (els_cmd == ELS_CMD_PRLO) 836 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 837 else 838 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 839 840 /* This clause allows the initiator to ACC the LOGO back to the 841 * Fabric Domain Controller. It does deliberately skip all other 842 * steps because some fabrics send RDP requests after logging out 843 * from the initiator. 844 */ 845 if (ndlp->nlp_type & NLP_FABRIC && 846 ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK)) 847 return 0; 848 849 /* Notify transport of connectivity loss to trigger cleanup. */ 850 if (phba->nvmet_support && 851 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 852 lpfc_nvmet_invalidate_host(phba, ndlp); 853 854 if (ndlp->nlp_DID == Fabric_DID) { 855 if (vport->port_state <= LPFC_FDISC || 856 test_bit(FC_PT2PT, &vport->fc_flag)) 857 goto out; 858 lpfc_linkdown_port(vport); 859 set_bit(FC_VPORT_LOGO_RCVD, &vport->fc_flag); 860 vports = lpfc_create_vport_work_array(phba); 861 if (vports) { 862 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 863 i++) { 864 if (!test_bit(FC_VPORT_LOGO_RCVD, 865 &vports[i]->fc_flag) && 866 vports[i]->port_state > LPFC_FDISC) { 867 active_vlink_present = 1; 868 break; 869 } 870 } 871 lpfc_destroy_vport_work_array(phba, vports); 872 } 873 874 /* 875 * Don't re-instantiate if vport is marked for deletion. 876 * If we are here first then vport_delete is going to wait 877 * for discovery to complete. 878 */ 879 if (!test_bit(FC_UNLOADING, &vport->load_flag) && 880 active_vlink_present) { 881 /* 882 * If there are other active VLinks present, 883 * re-instantiate the Vlink using FDISC. 884 */ 885 mod_timer(&ndlp->nlp_delayfunc, 886 jiffies + msecs_to_jiffies(1000)); 887 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 888 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 889 vport->port_state = LPFC_FDISC; 890 } else { 891 clear_bit(FC_LOGO_RCVD_DID_CHNG, &phba->pport->fc_flag); 892 lpfc_retry_pport_discovery(phba); 893 } 894 } else { 895 lpfc_printf_vlog(vport, KERN_INFO, 896 LOG_NODE | LOG_ELS | LOG_DISCOVERY, 897 "3203 LOGO recover nport x%06x state x%x " 898 "ntype x%x fc_flag x%lx\n", 899 ndlp->nlp_DID, ndlp->nlp_state, 900 ndlp->nlp_type, vport->fc_flag); 901 902 /* Special cases for rports that recover post LOGO. */ 903 if ((!(ndlp->nlp_type == NLP_FABRIC) && 904 (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) || 905 test_bit(FC_PT2PT, &vport->fc_flag))) || 906 (ndlp->nlp_state >= NLP_STE_ADISC_ISSUE || 907 ndlp->nlp_state <= NLP_STE_PRLI_ISSUE)) { 908 mod_timer(&ndlp->nlp_delayfunc, 909 jiffies + msecs_to_jiffies(1000 * 1)); 910 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 911 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 912 lpfc_printf_vlog(vport, KERN_INFO, 913 LOG_NODE | LOG_ELS | LOG_DISCOVERY, 914 "3204 Start nlpdelay on DID x%06x " 915 "nflag x%lx lastels x%x ref cnt %u", 916 ndlp->nlp_DID, ndlp->nlp_flag, 917 ndlp->nlp_last_elscmd, 918 kref_read(&ndlp->kref)); 919 } 920 } 921 out: 922 /* Unregister from backend, could have been skipped due to ADISC */ 923 lpfc_nlp_unreg_node(vport, ndlp); 924 925 ndlp->nlp_prev_state = ndlp->nlp_state; 926 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 927 928 clear_bit(NLP_NPR_ADISC, &ndlp->nlp_flag); 929 /* The driver has to wait until the ACC completes before it continues 930 * processing the LOGO. The action will resume in 931 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 932 * unreg_login, the driver waits so the ACC does not get aborted. 933 */ 934 return 0; 935 } 936 937 static uint32_t 938 lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 939 struct lpfc_nodelist *ndlp, 940 struct lpfc_iocbq *cmdiocb) 941 { 942 struct ls_rjt stat; 943 uint32_t *payload; 944 uint32_t cmd; 945 PRLI *npr; 946 947 payload = cmdiocb->cmd_dmabuf->virt; 948 cmd = *payload; 949 npr = (PRLI *)((uint8_t *)payload + sizeof(uint32_t)); 950 951 if (vport->phba->nvmet_support) { 952 /* Must be a NVME PRLI */ 953 if (cmd == ELS_CMD_PRLI) 954 goto out; 955 } else { 956 /* Initiator mode. */ 957 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 958 goto out; 959 960 /* NPIV ports will RJT initiator only functions */ 961 if (vport->port_type == LPFC_NPIV_PORT && 962 npr->initiatorFunc && !npr->targetFunc) 963 goto out; 964 } 965 return 1; 966 out: 967 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 968 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 969 "state x%x flags x%lx port_type: x%x " 970 "npr->initfcn: x%x npr->tgtfcn: x%x\n", 971 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 972 ndlp->nlp_flag, vport->port_type, 973 npr->initiatorFunc, npr->targetFunc); 974 memset(&stat, 0, sizeof(struct ls_rjt)); 975 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 976 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 977 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 978 ndlp, NULL); 979 return 0; 980 } 981 982 static void 983 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 984 struct lpfc_iocbq *cmdiocb) 985 { 986 struct lpfc_hba *phba = vport->phba; 987 struct lpfc_dmabuf *pcmd; 988 uint32_t *lp; 989 PRLI *npr; 990 struct fc_rport *rport = ndlp->rport; 991 u32 roles; 992 993 pcmd = cmdiocb->cmd_dmabuf; 994 lp = (uint32_t *)pcmd->virt; 995 npr = (PRLI *)((uint8_t *)lp + sizeof(uint32_t)); 996 997 if ((npr->prliType == PRLI_FCP_TYPE) || 998 (npr->prliType == PRLI_NVME_TYPE)) { 999 if (npr->initiatorFunc) { 1000 if (npr->prliType == PRLI_FCP_TYPE) 1001 ndlp->nlp_type |= NLP_FCP_INITIATOR; 1002 if (npr->prliType == PRLI_NVME_TYPE) 1003 ndlp->nlp_type |= NLP_NVME_INITIATOR; 1004 } 1005 if (npr->targetFunc) { 1006 if (npr->prliType == PRLI_FCP_TYPE) 1007 ndlp->nlp_type |= NLP_FCP_TARGET; 1008 if (npr->prliType == PRLI_NVME_TYPE) 1009 ndlp->nlp_type |= NLP_NVME_TARGET; 1010 if (npr->writeXferRdyDis) 1011 set_bit(NLP_FIRSTBURST, &ndlp->nlp_flag); 1012 } 1013 if (npr->Retry && ndlp->nlp_type & 1014 (NLP_FCP_INITIATOR | NLP_FCP_TARGET)) 1015 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 1016 1017 if (npr->Retry && phba->nsler && 1018 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET)) 1019 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 1020 1021 1022 /* If this driver is in nvme target mode, set the ndlp's fc4 1023 * type to NVME provided the PRLI response claims NVME FC4 1024 * type. Target mode does not issue gft_id so doesn't get 1025 * the fc4 type set until now. 1026 */ 1027 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 1028 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1029 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1030 } 1031 1032 /* Fabric Controllers send FCP PRLI as an initiator but should 1033 * not get recognized as FCP type and registered with transport. 1034 */ 1035 if (npr->prliType == PRLI_FCP_TYPE && 1036 !(ndlp->nlp_type & NLP_FABRIC)) 1037 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1038 } 1039 if (rport) { 1040 /* We need to update the rport role values */ 1041 roles = FC_RPORT_ROLE_UNKNOWN; 1042 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 1043 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 1044 if (ndlp->nlp_type & NLP_FCP_TARGET) 1045 roles |= FC_RPORT_ROLE_FCP_TARGET; 1046 1047 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 1048 "rport rolechg: role:x%x did:x%x flg:x%lx", 1049 roles, ndlp->nlp_DID, ndlp->nlp_flag); 1050 1051 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1052 fc_remote_port_rolechg(rport, roles); 1053 } 1054 } 1055 1056 static uint32_t 1057 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 1058 { 1059 if (!test_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag)) { 1060 clear_bit(NLP_NPR_ADISC, &ndlp->nlp_flag); 1061 return 0; 1062 } 1063 1064 if (!test_bit(FC_PT2PT, &vport->fc_flag)) { 1065 /* Check config parameter use-adisc or FCP-2 */ 1066 if (vport->cfg_use_adisc && 1067 (test_bit(FC_RSCN_MODE, &vport->fc_flag) || 1068 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 1069 (ndlp->nlp_type & NLP_FCP_TARGET)))) { 1070 set_bit(NLP_NPR_ADISC, &ndlp->nlp_flag); 1071 return 1; 1072 } 1073 } 1074 1075 clear_bit(NLP_NPR_ADISC, &ndlp->nlp_flag); 1076 lpfc_unreg_rpi(vport, ndlp); 1077 return 0; 1078 } 1079 1080 /** 1081 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 1082 * @phba : Pointer to lpfc_hba structure. 1083 * @vport: Pointer to lpfc_vport structure. 1084 * @ndlp: Pointer to lpfc_nodelist structure. 1085 * @rpi : rpi to be release. 1086 * 1087 * This function will send a unreg_login mailbox command to the firmware 1088 * to release a rpi. 1089 **/ 1090 static void 1091 lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, 1092 struct lpfc_nodelist *ndlp, uint16_t rpi) 1093 { 1094 LPFC_MBOXQ_t *pmb; 1095 int rc; 1096 1097 /* If there is already an UNREG in progress for this ndlp, 1098 * no need to queue up another one. 1099 */ 1100 if (test_bit(NLP_UNREG_INP, &ndlp->nlp_flag)) { 1101 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1102 "1435 release_rpi SKIP UNREG x%x on " 1103 "NPort x%x deferred x%x flg x%lx " 1104 "Data: x%px\n", 1105 ndlp->nlp_rpi, ndlp->nlp_DID, 1106 ndlp->nlp_defer_did, 1107 ndlp->nlp_flag, ndlp); 1108 return; 1109 } 1110 1111 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 1112 GFP_KERNEL); 1113 if (!pmb) 1114 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1115 "2796 mailbox memory allocation failed \n"); 1116 else { 1117 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 1118 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1119 pmb->vport = vport; 1120 pmb->ctx_ndlp = lpfc_nlp_get(ndlp); 1121 if (!pmb->ctx_ndlp) { 1122 mempool_free(pmb, phba->mbox_mem_pool); 1123 return; 1124 } 1125 1126 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 1127 (!test_bit(FC_OFFLINE_MODE, &vport->fc_flag))) 1128 set_bit(NLP_UNREG_INP, &ndlp->nlp_flag); 1129 1130 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1131 "1437 release_rpi UNREG x%x " 1132 "on NPort x%x flg x%lx\n", 1133 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); 1134 1135 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 1136 if (rc == MBX_NOT_FINISHED) { 1137 lpfc_nlp_put(ndlp); 1138 mempool_free(pmb, phba->mbox_mem_pool); 1139 } 1140 } 1141 } 1142 1143 static uint32_t 1144 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1145 void *arg, uint32_t evt) 1146 { 1147 struct lpfc_hba *phba; 1148 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1149 uint16_t rpi; 1150 1151 phba = vport->phba; 1152 /* Release the RPI if reglogin completing */ 1153 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag) && 1154 evt == NLP_EVT_CMPL_REG_LOGIN && !pmb->u.mb.mbxStatus) { 1155 rpi = pmb->u.mb.un.varWords[0]; 1156 lpfc_release_rpi(phba, vport, ndlp, rpi); 1157 } 1158 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1159 "0271 Illegal State Transition: node x%x " 1160 "event x%x, state x%x Data: x%x x%lx\n", 1161 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1162 ndlp->nlp_flag); 1163 return ndlp->nlp_state; 1164 } 1165 1166 static uint32_t 1167 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1168 void *arg, uint32_t evt) 1169 { 1170 /* This transition is only legal if we previously 1171 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 1172 * working on the same NPortID, do nothing for this thread 1173 * to stop it. 1174 */ 1175 if (!test_bit(NLP_RCV_PLOGI, &ndlp->nlp_flag)) 1176 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1177 "0272 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, 1180 ndlp->nlp_rpi, ndlp->nlp_flag); 1181 return ndlp->nlp_state; 1182 } 1183 1184 /* Start of Discovery State Machine routines */ 1185 1186 static uint32_t 1187 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1188 void *arg, uint32_t evt) 1189 { 1190 struct lpfc_iocbq *cmdiocb; 1191 1192 cmdiocb = (struct lpfc_iocbq *) arg; 1193 1194 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1195 return ndlp->nlp_state; 1196 } 1197 return NLP_STE_FREED_NODE; 1198 } 1199 1200 static uint32_t 1201 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1202 void *arg, uint32_t evt) 1203 { 1204 lpfc_issue_els_logo(vport, ndlp, 0); 1205 return ndlp->nlp_state; 1206 } 1207 1208 static uint32_t 1209 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1210 void *arg, uint32_t evt) 1211 { 1212 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1213 1214 set_bit(NLP_LOGO_ACC, &ndlp->nlp_flag); 1215 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1216 1217 return ndlp->nlp_state; 1218 } 1219 1220 static uint32_t 1221 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1222 void *arg, uint32_t evt) 1223 { 1224 return NLP_STE_FREED_NODE; 1225 } 1226 1227 static uint32_t 1228 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1229 void *arg, uint32_t evt) 1230 { 1231 return NLP_STE_FREED_NODE; 1232 } 1233 1234 static uint32_t 1235 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 1236 struct lpfc_nodelist *ndlp, 1237 void *arg, uint32_t evt) 1238 { 1239 return ndlp->nlp_state; 1240 } 1241 1242 static uint32_t 1243 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1244 void *arg, uint32_t evt) 1245 { 1246 struct lpfc_hba *phba = vport->phba; 1247 struct lpfc_iocbq *cmdiocb = arg; 1248 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 1249 uint32_t *lp = (uint32_t *) pcmd->virt; 1250 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1251 struct ls_rjt stat; 1252 int port_cmp; 1253 1254 memset(&stat, 0, sizeof (struct ls_rjt)); 1255 1256 /* For a PLOGI, we only accept if our portname is less 1257 * than the remote portname. 1258 */ 1259 phba->fc_stat.elsLogiCol++; 1260 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1261 sizeof(struct lpfc_name)); 1262 1263 if (port_cmp >= 0) { 1264 /* Reject this request because the remote node will accept 1265 ours */ 1266 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1267 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1268 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1269 NULL); 1270 } else { 1271 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1272 test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag) && 1273 vport->num_disc_nodes) { 1274 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 1275 /* Check if there are more PLOGIs to be sent */ 1276 lpfc_more_plogi(vport); 1277 if (vport->num_disc_nodes == 0) { 1278 clear_bit(FC_NDISC_ACTIVE, &vport->fc_flag); 1279 lpfc_can_disctmo(vport); 1280 lpfc_end_rscn(vport); 1281 } 1282 } 1283 } /* If our portname was less */ 1284 1285 return ndlp->nlp_state; 1286 } 1287 1288 static uint32_t 1289 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1290 void *arg, uint32_t evt) 1291 { 1292 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1293 struct ls_rjt stat; 1294 1295 memset(&stat, 0, sizeof (struct ls_rjt)); 1296 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1297 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1298 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1299 return ndlp->nlp_state; 1300 } 1301 1302 static uint32_t 1303 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1304 void *arg, uint32_t evt) 1305 { 1306 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1307 1308 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1309 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1310 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1311 /* software abort outstanding PLOGI */ 1312 lpfc_els_abort(vport->phba, ndlp); 1313 1314 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1315 return ndlp->nlp_state; 1316 } 1317 1318 static uint32_t 1319 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1320 void *arg, uint32_t evt) 1321 { 1322 struct lpfc_hba *phba = vport->phba; 1323 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1324 1325 /* software abort outstanding PLOGI */ 1326 lpfc_els_abort(phba, ndlp); 1327 1328 if (evt == NLP_EVT_RCV_LOGO) { 1329 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1330 } else { 1331 lpfc_issue_els_logo(vport, ndlp, 0); 1332 } 1333 1334 /* Put ndlp in npr state set plogi timer for 1 sec */ 1335 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1336 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 1337 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1338 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1339 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1340 1341 return ndlp->nlp_state; 1342 } 1343 1344 static uint32_t 1345 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1346 struct lpfc_nodelist *ndlp, 1347 void *arg, 1348 uint32_t evt) 1349 { 1350 struct lpfc_hba *phba = vport->phba; 1351 struct lpfc_iocbq *cmdiocb, *rspiocb; 1352 struct lpfc_dmabuf *pcmd, *prsp; 1353 uint32_t *lp; 1354 uint32_t vid, flag; 1355 struct serv_parm *sp; 1356 uint32_t ed_tov; 1357 LPFC_MBOXQ_t *mbox; 1358 int rc; 1359 u32 ulp_status; 1360 u32 did; 1361 1362 cmdiocb = (struct lpfc_iocbq *) arg; 1363 rspiocb = cmdiocb->rsp_iocb; 1364 1365 ulp_status = get_job_ulpstatus(phba, rspiocb); 1366 1367 if (test_bit(NLP_ACC_REGLOGIN, &ndlp->nlp_flag)) { 1368 /* Recovery from PLOGI collision logic */ 1369 return ndlp->nlp_state; 1370 } 1371 1372 if (ulp_status) 1373 goto out; 1374 1375 pcmd = cmdiocb->cmd_dmabuf; 1376 1377 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1378 if (!prsp) 1379 goto out; 1380 1381 lp = (uint32_t *) prsp->virt; 1382 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1383 1384 /* Some switches have FDMI servers returning 0 for WWN */ 1385 if ((ndlp->nlp_DID != FDMI_DID) && 1386 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1387 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1388 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1389 "0142 PLOGI RSP: Invalid WWN.\n"); 1390 goto out; 1391 } 1392 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1393 goto out; 1394 /* PLOGI chkparm OK */ 1395 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1396 "0121 PLOGI chkparm OK Data: x%x x%x x%lx x%x\n", 1397 ndlp->nlp_DID, ndlp->nlp_state, 1398 ndlp->nlp_flag, ndlp->nlp_rpi); 1399 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1400 ndlp->nlp_fcp_info |= CLASS2; 1401 else 1402 ndlp->nlp_fcp_info |= CLASS3; 1403 1404 ndlp->nlp_class_sup = 0; 1405 if (sp->cls1.classValid) 1406 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1407 if (sp->cls2.classValid) 1408 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1409 if (sp->cls3.classValid) 1410 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1411 if (sp->cls4.classValid) 1412 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1413 ndlp->nlp_maxframe = 1414 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1415 1416 if (test_bit(FC_PT2PT, &vport->fc_flag) && 1417 test_bit(FC_PT2PT_PLOGI, &vport->fc_flag)) { 1418 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1419 if (sp->cmn.edtovResolution) { 1420 /* E_D_TOV ticks are in nanoseconds */ 1421 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1422 } 1423 1424 clear_bit(NLP_SUPPRESS_RSP, &ndlp->nlp_flag); 1425 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1426 sp->cmn.valid_vendor_ver_level) { 1427 vid = be32_to_cpu(sp->un.vv.vid); 1428 flag = be32_to_cpu(sp->un.vv.flags); 1429 if ((vid == LPFC_VV_EMLX_ID) && 1430 (flag & LPFC_VV_SUPPRESS_RSP)) 1431 set_bit(NLP_SUPPRESS_RSP, &ndlp->nlp_flag); 1432 } 1433 1434 /* 1435 * Use the larger EDTOV 1436 * RATOV = 2 * EDTOV for pt-to-pt 1437 */ 1438 if (ed_tov > phba->fc_edtov) 1439 phba->fc_edtov = ed_tov; 1440 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1441 1442 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1443 1444 /* Issue config_link / reg_vfi to account for updated TOV's */ 1445 if (phba->sli_rev == LPFC_SLI_REV4) { 1446 lpfc_issue_reg_vfi(vport); 1447 } else { 1448 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1449 if (!mbox) { 1450 lpfc_printf_vlog(vport, KERN_ERR, 1451 LOG_TRACE_EVENT, 1452 "0133 PLOGI: no memory " 1453 "for config_link " 1454 "Data: x%x x%x x%lx x%x\n", 1455 ndlp->nlp_DID, ndlp->nlp_state, 1456 ndlp->nlp_flag, ndlp->nlp_rpi); 1457 goto out; 1458 } 1459 1460 lpfc_config_link(phba, mbox); 1461 1462 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1463 mbox->vport = vport; 1464 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1465 if (rc == MBX_NOT_FINISHED) { 1466 mempool_free(mbox, phba->mbox_mem_pool); 1467 goto out; 1468 } 1469 } 1470 } 1471 1472 lpfc_unreg_rpi(vport, ndlp); 1473 1474 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1475 if (!mbox) { 1476 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1477 "0018 PLOGI: no memory for reg_login " 1478 "Data: x%x x%x x%lx x%x\n", 1479 ndlp->nlp_DID, ndlp->nlp_state, 1480 ndlp->nlp_flag, ndlp->nlp_rpi); 1481 goto out; 1482 } 1483 1484 did = get_job_els_rsp64_did(phba, cmdiocb); 1485 1486 if (lpfc_reg_rpi(phba, vport->vpi, did, 1487 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1488 switch (ndlp->nlp_DID) { 1489 case NameServer_DID: 1490 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1491 /* Fabric Controller Node needs these parameters. */ 1492 memcpy(&ndlp->fc_sparam, sp, sizeof(struct serv_parm)); 1493 break; 1494 case FDMI_DID: 1495 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1496 break; 1497 default: 1498 set_bit(NLP_REG_LOGIN_SEND, &ndlp->nlp_flag); 1499 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1500 } 1501 1502 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1503 if (!mbox->ctx_ndlp) 1504 goto out; 1505 1506 mbox->vport = vport; 1507 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1508 != MBX_NOT_FINISHED) { 1509 lpfc_nlp_set_state(vport, ndlp, 1510 NLP_STE_REG_LOGIN_ISSUE); 1511 return ndlp->nlp_state; 1512 } 1513 clear_bit(NLP_REG_LOGIN_SEND, &ndlp->nlp_flag); 1514 /* decrement node reference count to the failed mbox 1515 * command 1516 */ 1517 lpfc_nlp_put(ndlp); 1518 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 1519 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1520 "0134 PLOGI: cannot issue reg_login " 1521 "Data: x%x x%x x%lx x%x\n", 1522 ndlp->nlp_DID, ndlp->nlp_state, 1523 ndlp->nlp_flag, ndlp->nlp_rpi); 1524 } else { 1525 mempool_free(mbox, phba->mbox_mem_pool); 1526 1527 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1528 "0135 PLOGI: cannot format reg_login " 1529 "Data: x%x x%x x%lx x%x\n", 1530 ndlp->nlp_DID, ndlp->nlp_state, 1531 ndlp->nlp_flag, ndlp->nlp_rpi); 1532 } 1533 1534 1535 out: 1536 if (ndlp->nlp_DID == NameServer_DID) { 1537 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1538 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1539 "0261 Cannot Register NameServer login\n"); 1540 } 1541 1542 /* 1543 ** In case the node reference counter does not go to zero, ensure that 1544 ** the stale state for the node is not processed. 1545 */ 1546 1547 ndlp->nlp_prev_state = ndlp->nlp_state; 1548 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1549 return NLP_STE_FREED_NODE; 1550 } 1551 1552 static uint32_t 1553 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1554 void *arg, uint32_t evt) 1555 { 1556 return ndlp->nlp_state; 1557 } 1558 1559 static uint32_t 1560 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1561 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1562 { 1563 struct lpfc_hba *phba; 1564 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1565 MAILBOX_t *mb = &pmb->u.mb; 1566 uint16_t rpi; 1567 1568 phba = vport->phba; 1569 /* Release the RPI */ 1570 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag) && 1571 !mb->mbxStatus) { 1572 rpi = pmb->u.mb.un.varWords[0]; 1573 lpfc_release_rpi(phba, vport, ndlp, rpi); 1574 } 1575 return ndlp->nlp_state; 1576 } 1577 1578 static uint32_t 1579 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1580 void *arg, uint32_t evt) 1581 { 1582 if (test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 1583 set_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 1584 return ndlp->nlp_state; 1585 } 1586 /* software abort outstanding PLOGI */ 1587 lpfc_els_abort(vport->phba, ndlp); 1588 1589 lpfc_drop_node(vport, ndlp); 1590 return NLP_STE_FREED_NODE; 1591 } 1592 1593 static uint32_t 1594 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1595 struct lpfc_nodelist *ndlp, 1596 void *arg, 1597 uint32_t evt) 1598 { 1599 struct lpfc_hba *phba = vport->phba; 1600 1601 /* Don't do anything that disrupts the RSCN unless lpfc is unloading. */ 1602 if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag)) 1603 return ndlp->nlp_state; 1604 1605 /* software abort outstanding PLOGI */ 1606 lpfc_els_abort(phba, ndlp); 1607 1608 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1609 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1610 clear_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 1611 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 1612 1613 return ndlp->nlp_state; 1614 } 1615 1616 static uint32_t 1617 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1618 void *arg, uint32_t evt) 1619 { 1620 struct lpfc_hba *phba = vport->phba; 1621 struct lpfc_iocbq *cmdiocb; 1622 1623 /* software abort outstanding ADISC */ 1624 lpfc_els_abort(phba, ndlp); 1625 1626 cmdiocb = (struct lpfc_iocbq *) arg; 1627 1628 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1629 if (test_and_clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 1630 if (vport->num_disc_nodes) 1631 lpfc_more_adisc(vport); 1632 } 1633 return ndlp->nlp_state; 1634 } 1635 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1636 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1637 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1638 1639 return ndlp->nlp_state; 1640 } 1641 1642 static uint32_t 1643 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1644 void *arg, uint32_t evt) 1645 { 1646 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1647 1648 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1649 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1650 return ndlp->nlp_state; 1651 } 1652 1653 static uint32_t 1654 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1655 void *arg, uint32_t evt) 1656 { 1657 struct lpfc_hba *phba = vport->phba; 1658 struct lpfc_iocbq *cmdiocb; 1659 1660 cmdiocb = (struct lpfc_iocbq *) arg; 1661 1662 /* software abort outstanding ADISC */ 1663 lpfc_els_abort(phba, ndlp); 1664 1665 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1666 return ndlp->nlp_state; 1667 } 1668 1669 static uint32_t 1670 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1671 struct lpfc_nodelist *ndlp, 1672 void *arg, uint32_t evt) 1673 { 1674 struct lpfc_iocbq *cmdiocb; 1675 1676 cmdiocb = (struct lpfc_iocbq *) arg; 1677 1678 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1679 return ndlp->nlp_state; 1680 } 1681 1682 static uint32_t 1683 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1684 void *arg, uint32_t evt) 1685 { 1686 struct lpfc_iocbq *cmdiocb; 1687 1688 cmdiocb = (struct lpfc_iocbq *) arg; 1689 1690 /* Treat like rcv logo */ 1691 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1692 return ndlp->nlp_state; 1693 } 1694 1695 static uint32_t 1696 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1697 struct lpfc_nodelist *ndlp, 1698 void *arg, uint32_t evt) 1699 { 1700 struct lpfc_hba *phba = vport->phba; 1701 struct lpfc_iocbq *cmdiocb, *rspiocb; 1702 ADISC *ap; 1703 int rc; 1704 u32 ulp_status; 1705 1706 cmdiocb = (struct lpfc_iocbq *) arg; 1707 rspiocb = cmdiocb->rsp_iocb; 1708 1709 ulp_status = get_job_ulpstatus(phba, rspiocb); 1710 1711 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1712 1713 if ((ulp_status) || 1714 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1715 /* 1 sec timeout */ 1716 mod_timer(&ndlp->nlp_delayfunc, 1717 jiffies + msecs_to_jiffies(1000)); 1718 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 1719 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1720 1721 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1722 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1723 lpfc_unreg_rpi(vport, ndlp); 1724 return ndlp->nlp_state; 1725 } 1726 1727 if (phba->sli_rev == LPFC_SLI_REV4) { 1728 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1729 if (rc) { 1730 /* Stay in state and retry. */ 1731 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1732 return ndlp->nlp_state; 1733 } 1734 } 1735 1736 if (ndlp->nlp_type & NLP_FCP_TARGET) 1737 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1738 1739 if (ndlp->nlp_type & NLP_NVME_TARGET) 1740 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1741 1742 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 1743 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1744 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1745 } else { 1746 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1747 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1748 } 1749 1750 return ndlp->nlp_state; 1751 } 1752 1753 static uint32_t 1754 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1755 void *arg, uint32_t evt) 1756 { 1757 if (test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 1758 set_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 1759 return ndlp->nlp_state; 1760 } 1761 /* software abort outstanding ADISC */ 1762 lpfc_els_abort(vport->phba, ndlp); 1763 1764 lpfc_drop_node(vport, ndlp); 1765 return NLP_STE_FREED_NODE; 1766 } 1767 1768 static uint32_t 1769 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1770 struct lpfc_nodelist *ndlp, 1771 void *arg, 1772 uint32_t evt) 1773 { 1774 struct lpfc_hba *phba = vport->phba; 1775 1776 /* Don't do anything that disrupts the RSCN unless lpfc is unloading. */ 1777 if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag)) 1778 return ndlp->nlp_state; 1779 1780 /* software abort outstanding ADISC */ 1781 lpfc_els_abort(phba, ndlp); 1782 1783 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1784 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1785 clear_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 1786 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 1787 lpfc_disc_set_adisc(vport, ndlp); 1788 return ndlp->nlp_state; 1789 } 1790 1791 static uint32_t 1792 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1793 struct lpfc_nodelist *ndlp, 1794 void *arg, 1795 uint32_t evt) 1796 { 1797 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1798 1799 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1800 return ndlp->nlp_state; 1801 } 1802 1803 static uint32_t 1804 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1805 struct lpfc_nodelist *ndlp, 1806 void *arg, 1807 uint32_t evt) 1808 { 1809 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1810 struct ls_rjt stat; 1811 1812 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1813 return ndlp->nlp_state; 1814 } 1815 if (vport->phba->nvmet_support) { 1816 /* NVME Target mode. Handle and respond to the PRLI and 1817 * transition to UNMAPPED provided the RPI has completed 1818 * registration. 1819 */ 1820 if (test_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag)) { 1821 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1822 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1823 } else { 1824 /* RPI registration has not completed. Reject the PRLI 1825 * to prevent an illegal state transition when the 1826 * rpi registration does complete. 1827 */ 1828 memset(&stat, 0, sizeof(struct ls_rjt)); 1829 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1830 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1831 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1832 ndlp, NULL); 1833 return ndlp->nlp_state; 1834 } 1835 } else { 1836 /* Initiator mode. */ 1837 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1838 } 1839 return ndlp->nlp_state; 1840 } 1841 1842 static uint32_t 1843 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1844 struct lpfc_nodelist *ndlp, 1845 void *arg, 1846 uint32_t evt) 1847 { 1848 struct lpfc_hba *phba = vport->phba; 1849 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1850 LPFC_MBOXQ_t *mb; 1851 LPFC_MBOXQ_t *nextmb; 1852 1853 cmdiocb = (struct lpfc_iocbq *) arg; 1854 1855 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1856 if ((mb = phba->sli.mbox_active)) { 1857 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1858 (ndlp == mb->ctx_ndlp)) { 1859 clear_bit(NLP_REG_LOGIN_SEND, &ndlp->nlp_flag); 1860 lpfc_nlp_put(ndlp); 1861 mb->ctx_ndlp = NULL; 1862 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1863 } 1864 } 1865 1866 spin_lock_irq(&phba->hbalock); 1867 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1868 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1869 (ndlp == mb->ctx_ndlp)) { 1870 clear_bit(NLP_REG_LOGIN_SEND, &ndlp->nlp_flag); 1871 lpfc_nlp_put(ndlp); 1872 list_del(&mb->list); 1873 phba->sli.mboxq_cnt--; 1874 lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_LOCKED); 1875 } 1876 } 1877 spin_unlock_irq(&phba->hbalock); 1878 1879 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1880 return ndlp->nlp_state; 1881 } 1882 1883 static uint32_t 1884 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1885 struct lpfc_nodelist *ndlp, 1886 void *arg, 1887 uint32_t evt) 1888 { 1889 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1890 1891 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1892 return ndlp->nlp_state; 1893 } 1894 1895 static uint32_t 1896 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1897 struct lpfc_nodelist *ndlp, 1898 void *arg, 1899 uint32_t evt) 1900 { 1901 struct lpfc_iocbq *cmdiocb; 1902 1903 cmdiocb = (struct lpfc_iocbq *) arg; 1904 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1905 return ndlp->nlp_state; 1906 } 1907 1908 static uint32_t 1909 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1910 struct lpfc_nodelist *ndlp, 1911 void *arg, 1912 uint32_t evt) 1913 { 1914 struct lpfc_hba *phba = vport->phba; 1915 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1916 MAILBOX_t *mb = &pmb->u.mb; 1917 uint32_t did = mb->un.varWords[1]; 1918 1919 if (mb->mbxStatus) { 1920 /* RegLogin failed */ 1921 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1922 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1923 "x%x\n", 1924 did, mb->mbxStatus, vport->port_state, 1925 mb->un.varRegLogin.vpi, 1926 mb->un.varRegLogin.rpi); 1927 /* 1928 * If RegLogin failed due to lack of HBA resources do not 1929 * retry discovery. 1930 */ 1931 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1932 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1933 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1934 return ndlp->nlp_state; 1935 } 1936 1937 /* Put ndlp in npr state set plogi timer for 1 sec */ 1938 mod_timer(&ndlp->nlp_delayfunc, 1939 jiffies + msecs_to_jiffies(1000 * 1)); 1940 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 1941 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1942 1943 lpfc_issue_els_logo(vport, ndlp, 0); 1944 return ndlp->nlp_state; 1945 } 1946 1947 /* SLI4 ports have preallocated logical rpis. */ 1948 if (phba->sli_rev < LPFC_SLI_REV4) 1949 ndlp->nlp_rpi = mb->un.varWords[0]; 1950 1951 set_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag); 1952 1953 /* Only if we are not a fabric nport do we issue PRLI */ 1954 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1955 "3066 RegLogin Complete on x%x x%x x%x\n", 1956 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 1957 if (!(ndlp->nlp_type & NLP_FABRIC) && 1958 (phba->nvmet_support == 0)) { 1959 /* The driver supports FCP and NVME concurrently. If the 1960 * ndlp's nlp_fc4_type is still zero, the driver doesn't 1961 * know what PRLI to send yet. Figure that out now and 1962 * call PRLI depending on the outcome. 1963 */ 1964 if (test_bit(FC_PT2PT, &vport->fc_flag)) { 1965 /* If we are pt2pt, there is no Fabric to determine 1966 * the FC4 type of the remote nport. So if NVME 1967 * is configured try it. 1968 */ 1969 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1970 if ((!test_bit(FC_PT2PT_NO_NVME, &vport->fc_flag)) && 1971 (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH || 1972 vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1973 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1974 /* We need to update the localport also */ 1975 lpfc_nvme_update_localport(vport); 1976 } 1977 1978 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 1979 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1980 1981 } else if (ndlp->nlp_fc4_type == 0) { 1982 /* If we are only configured for FCP, the driver 1983 * should just issue PRLI for FCP. Otherwise issue 1984 * GFT_ID to determine if remote port supports NVME. 1985 */ 1986 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 1987 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0, 1988 ndlp->nlp_DID); 1989 return ndlp->nlp_state; 1990 } 1991 ndlp->nlp_fc4_type = NLP_FC4_FCP; 1992 } 1993 1994 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1995 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 1996 if (lpfc_issue_els_prli(vport, ndlp, 0)) { 1997 lpfc_issue_els_logo(vport, ndlp, 0); 1998 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1999 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2000 } 2001 } else { 2002 if (test_bit(FC_PT2PT, &vport->fc_flag) && phba->nvmet_support) 2003 phba->targetport->port_id = vport->fc_myDID; 2004 2005 /* Only Fabric ports should transition. NVME target 2006 * must complete PRLI. 2007 */ 2008 if (ndlp->nlp_type & NLP_FABRIC) { 2009 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2010 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2011 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2012 } 2013 } 2014 return ndlp->nlp_state; 2015 } 2016 2017 static uint32_t 2018 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 2019 struct lpfc_nodelist *ndlp, 2020 void *arg, 2021 uint32_t evt) 2022 { 2023 if (test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 2024 set_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2025 return ndlp->nlp_state; 2026 } 2027 lpfc_drop_node(vport, ndlp); 2028 return NLP_STE_FREED_NODE; 2029 } 2030 2031 static uint32_t 2032 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 2033 struct lpfc_nodelist *ndlp, 2034 void *arg, 2035 uint32_t evt) 2036 { 2037 /* Don't do anything that disrupts the RSCN unless lpfc is unloading. */ 2038 if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag)) 2039 return ndlp->nlp_state; 2040 2041 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2042 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2043 2044 /* If we are a target we won't immediately transition into PRLI, 2045 * so if REG_LOGIN already completed we don't need to ignore it. 2046 */ 2047 if (!test_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag) || 2048 !vport->phba->nvmet_support) 2049 set_bit(NLP_IGNR_REG_CMPL, &ndlp->nlp_flag); 2050 2051 clear_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2052 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2053 lpfc_disc_set_adisc(vport, ndlp); 2054 return ndlp->nlp_state; 2055 } 2056 2057 static uint32_t 2058 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2059 void *arg, uint32_t evt) 2060 { 2061 struct lpfc_iocbq *cmdiocb; 2062 2063 cmdiocb = (struct lpfc_iocbq *) arg; 2064 2065 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2066 return ndlp->nlp_state; 2067 } 2068 2069 static uint32_t 2070 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2071 void *arg, uint32_t evt) 2072 { 2073 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2074 2075 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2076 return ndlp->nlp_state; 2077 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2078 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2079 return ndlp->nlp_state; 2080 } 2081 2082 static uint32_t 2083 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2084 void *arg, uint32_t evt) 2085 { 2086 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2087 2088 /* Software abort outstanding PRLI before sending acc */ 2089 lpfc_els_abort(vport->phba, ndlp); 2090 2091 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2092 return ndlp->nlp_state; 2093 } 2094 2095 static uint32_t 2096 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2097 void *arg, uint32_t evt) 2098 { 2099 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2100 2101 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2102 return ndlp->nlp_state; 2103 } 2104 2105 /* This routine is envoked when we rcv a PRLO request from a nport 2106 * we are logged into. We should send back a PRLO rsp setting the 2107 * appropriate bits. 2108 * NEXT STATE = PRLI_ISSUE 2109 */ 2110 static uint32_t 2111 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2112 void *arg, uint32_t evt) 2113 { 2114 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2115 2116 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2117 return ndlp->nlp_state; 2118 } 2119 2120 static uint32_t 2121 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2122 void *arg, uint32_t evt) 2123 { 2124 struct lpfc_iocbq *cmdiocb, *rspiocb; 2125 struct lpfc_hba *phba = vport->phba; 2126 PRLI *npr; 2127 struct lpfc_nvme_prli *nvpr; 2128 void *temp_ptr; 2129 u32 ulp_status; 2130 bool acc_imode_sps = false; 2131 2132 cmdiocb = (struct lpfc_iocbq *) arg; 2133 rspiocb = cmdiocb->rsp_iocb; 2134 2135 ulp_status = get_job_ulpstatus(phba, rspiocb); 2136 2137 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 2138 * format is different so NULL the two PRLI types so that the 2139 * driver correctly gets the correct context. 2140 */ 2141 npr = NULL; 2142 nvpr = NULL; 2143 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 2144 if (cmdiocb->cmd_flag & LPFC_PRLI_FCP_REQ) 2145 npr = (PRLI *) temp_ptr; 2146 else if (cmdiocb->cmd_flag & LPFC_PRLI_NVME_REQ) 2147 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 2148 2149 if (ulp_status) { 2150 if ((vport->port_type == LPFC_NPIV_PORT) && 2151 vport->cfg_restrict_login) { 2152 goto out; 2153 } 2154 2155 /* Adjust the nlp_type accordingly if the PRLI failed */ 2156 if (npr) 2157 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2158 if (nvpr) 2159 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 2160 2161 /* We can't set the DSM state till BOTH PRLIs complete */ 2162 goto out_err; 2163 } 2164 2165 if (npr && npr->prliType == PRLI_FCP_TYPE) { 2166 lpfc_printf_vlog(vport, KERN_INFO, 2167 LOG_ELS | LOG_NODE | LOG_DISCOVERY, 2168 "6028 FCP NPR PRLI Cmpl Init %d Target %d " 2169 "EIP %d AccCode x%x\n", 2170 npr->initiatorFunc, npr->targetFunc, 2171 npr->estabImagePair, npr->acceptRspCode); 2172 2173 if (npr->acceptRspCode == PRLI_INV_SRV_PARM) { 2174 /* Strict initiators don't establish an image pair. */ 2175 if (npr->initiatorFunc && !npr->targetFunc && 2176 !npr->estabImagePair) 2177 acc_imode_sps = true; 2178 } 2179 2180 if (npr->acceptRspCode == PRLI_REQ_EXECUTED || acc_imode_sps) { 2181 if (npr->initiatorFunc) 2182 ndlp->nlp_type |= NLP_FCP_INITIATOR; 2183 if (npr->targetFunc) { 2184 ndlp->nlp_type |= NLP_FCP_TARGET; 2185 if (npr->writeXferRdyDis) 2186 set_bit(NLP_FIRSTBURST, 2187 &ndlp->nlp_flag); 2188 } 2189 if (npr->Retry) 2190 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 2191 } 2192 } else if (nvpr && 2193 (bf_get_be32(prli_acc_rsp_code, nvpr) == 2194 PRLI_REQ_EXECUTED) && 2195 (bf_get_be32(prli_type_code, nvpr) == 2196 PRLI_NVME_TYPE)) { 2197 2198 /* Complete setting up the remote ndlp personality. */ 2199 if (bf_get_be32(prli_init, nvpr)) 2200 ndlp->nlp_type |= NLP_NVME_INITIATOR; 2201 2202 if (phba->nsler && bf_get_be32(prli_nsler, nvpr) && 2203 bf_get_be32(prli_conf, nvpr)) 2204 2205 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 2206 else 2207 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 2208 2209 /* Target driver cannot solicit NVME FB. */ 2210 if (bf_get_be32(prli_tgt, nvpr)) { 2211 /* Complete the nvme target roles. The transport 2212 * needs to know if the rport is capable of 2213 * discovery in addition to its role. 2214 */ 2215 ndlp->nlp_type |= NLP_NVME_TARGET; 2216 if (bf_get_be32(prli_disc, nvpr)) 2217 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 2218 2219 /* 2220 * If prli_fba is set, the Target supports FirstBurst. 2221 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 2222 * otherwise it defines the actual size supported by 2223 * the NVME Target. 2224 */ 2225 if ((bf_get_be32(prli_fba, nvpr) == 1) && 2226 (phba->cfg_nvme_enable_fb) && 2227 (!phba->nvmet_support)) { 2228 /* Both sides support FB. The target's first 2229 * burst size is a 512 byte encoded value. 2230 */ 2231 set_bit(NLP_FIRSTBURST, &ndlp->nlp_flag); 2232 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2233 nvpr); 2234 2235 /* Expressed in units of 512 bytes */ 2236 if (ndlp->nvme_fb_size) 2237 ndlp->nvme_fb_size <<= 2238 LPFC_NVME_FB_SHIFT; 2239 else 2240 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2241 } 2242 } 2243 2244 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2245 "6029 NVME PRLI Cmpl w1 x%08x " 2246 "w4 x%08x w5 x%08x flag x%lx, " 2247 "fcp_info x%x nlp_type x%x\n", 2248 be32_to_cpu(nvpr->word1), 2249 be32_to_cpu(nvpr->word4), 2250 be32_to_cpu(nvpr->word5), 2251 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2252 ndlp->nlp_type); 2253 } 2254 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2255 (vport->port_type == LPFC_NPIV_PORT) && 2256 vport->cfg_restrict_login) { 2257 out: 2258 set_bit(NLP_TARGET_REMOVE, &ndlp->nlp_flag); 2259 lpfc_issue_els_logo(vport, ndlp, 0); 2260 2261 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2262 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2263 return ndlp->nlp_state; 2264 } 2265 2266 out_err: 2267 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2268 * are complete. 2269 */ 2270 if (ndlp->fc4_prli_sent == 0) { 2271 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2272 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2273 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2274 else if (ndlp->nlp_type & 2275 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2276 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2277 } else 2278 lpfc_printf_vlog(vport, 2279 KERN_INFO, LOG_ELS, 2280 "3067 PRLI's still outstanding " 2281 "on x%06x - count %d, Pend Node Mode " 2282 "transition...\n", 2283 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2284 2285 return ndlp->nlp_state; 2286 } 2287 2288 /*! lpfc_device_rm_prli_issue 2289 * 2290 * \pre 2291 * \post 2292 * \param phba 2293 * \param ndlp 2294 * \param arg 2295 * \param evt 2296 * \return uint32_t 2297 * 2298 * \b Description: 2299 * This routine is envoked when we a request to remove a nport we are in the 2300 * process of PRLIing. We should software abort outstanding prli, unreg 2301 * login, send a logout. We will change node state to UNUSED_NODE, put it 2302 * on plogi list so it can be freed when LOGO completes. 2303 * 2304 */ 2305 2306 static uint32_t 2307 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2308 void *arg, uint32_t evt) 2309 { 2310 if (test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 2311 set_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2312 return ndlp->nlp_state; 2313 } 2314 /* software abort outstanding PLOGI */ 2315 lpfc_els_abort(vport->phba, ndlp); 2316 2317 lpfc_drop_node(vport, ndlp); 2318 return NLP_STE_FREED_NODE; 2319 } 2320 2321 2322 /*! lpfc_device_recov_prli_issue 2323 * 2324 * \pre 2325 * \post 2326 * \param phba 2327 * \param ndlp 2328 * \param arg 2329 * \param evt 2330 * \return uint32_t 2331 * 2332 * \b Description: 2333 * The routine is envoked when the state of a device is unknown, like 2334 * during a link down. We should remove the nodelist entry from the 2335 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2336 * outstanding PRLI command, then free the node entry. 2337 */ 2338 static uint32_t 2339 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2340 struct lpfc_nodelist *ndlp, 2341 void *arg, 2342 uint32_t evt) 2343 { 2344 struct lpfc_hba *phba = vport->phba; 2345 2346 /* Don't do anything that disrupts the RSCN unless lpfc is unloading. */ 2347 if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag)) 2348 return ndlp->nlp_state; 2349 2350 /* software abort outstanding PRLI */ 2351 lpfc_els_abort(phba, ndlp); 2352 2353 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2354 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2355 clear_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2356 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2357 lpfc_disc_set_adisc(vport, ndlp); 2358 return ndlp->nlp_state; 2359 } 2360 2361 static uint32_t 2362 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2363 void *arg, uint32_t evt) 2364 { 2365 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2366 struct ls_rjt stat; 2367 2368 memset(&stat, 0, sizeof(struct ls_rjt)); 2369 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2370 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2371 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2372 return ndlp->nlp_state; 2373 } 2374 2375 static uint32_t 2376 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2377 void *arg, uint32_t evt) 2378 { 2379 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2380 struct ls_rjt stat; 2381 2382 memset(&stat, 0, sizeof(struct ls_rjt)); 2383 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2384 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2385 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2386 return ndlp->nlp_state; 2387 } 2388 2389 static uint32_t 2390 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2391 void *arg, uint32_t evt) 2392 { 2393 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2394 2395 set_bit(NLP_LOGO_ACC, &ndlp->nlp_flag); 2396 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2397 return ndlp->nlp_state; 2398 } 2399 2400 static uint32_t 2401 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2402 void *arg, uint32_t evt) 2403 { 2404 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2405 struct ls_rjt stat; 2406 2407 memset(&stat, 0, sizeof(struct ls_rjt)); 2408 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2409 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2410 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2411 return ndlp->nlp_state; 2412 } 2413 2414 static uint32_t 2415 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2416 void *arg, uint32_t evt) 2417 { 2418 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2419 struct ls_rjt stat; 2420 2421 memset(&stat, 0, sizeof(struct ls_rjt)); 2422 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2423 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2424 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2425 return ndlp->nlp_state; 2426 } 2427 2428 static uint32_t 2429 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2430 void *arg, uint32_t evt) 2431 { 2432 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2433 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2434 clear_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2435 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2436 lpfc_disc_set_adisc(vport, ndlp); 2437 return ndlp->nlp_state; 2438 } 2439 2440 static uint32_t 2441 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2442 void *arg, uint32_t evt) 2443 { 2444 /* 2445 * DevLoss has timed out and is calling for Device Remove. 2446 * In this case, abort the LOGO and cleanup the ndlp 2447 */ 2448 2449 lpfc_unreg_rpi(vport, ndlp); 2450 /* software abort outstanding PLOGI */ 2451 lpfc_els_abort(vport->phba, ndlp); 2452 lpfc_drop_node(vport, ndlp); 2453 return NLP_STE_FREED_NODE; 2454 } 2455 2456 static uint32_t 2457 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2458 struct lpfc_nodelist *ndlp, 2459 void *arg, uint32_t evt) 2460 { 2461 /* 2462 * Device Recovery events have no meaning for a node with a LOGO 2463 * outstanding. The LOGO has to complete first and handle the 2464 * node from that point. 2465 */ 2466 return ndlp->nlp_state; 2467 } 2468 2469 static uint32_t 2470 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2471 void *arg, uint32_t evt) 2472 { 2473 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2474 2475 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2476 return ndlp->nlp_state; 2477 } 2478 2479 static uint32_t 2480 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2481 void *arg, uint32_t evt) 2482 { 2483 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2484 2485 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2486 return ndlp->nlp_state; 2487 2488 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2489 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2490 return ndlp->nlp_state; 2491 } 2492 2493 static uint32_t 2494 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2495 void *arg, uint32_t evt) 2496 { 2497 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2498 2499 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2500 return ndlp->nlp_state; 2501 } 2502 2503 static uint32_t 2504 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2505 void *arg, uint32_t evt) 2506 { 2507 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2508 2509 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2510 return ndlp->nlp_state; 2511 } 2512 2513 static uint32_t 2514 lpfc_rcv_prlo_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_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2520 return ndlp->nlp_state; 2521 } 2522 2523 static uint32_t 2524 lpfc_device_rm_unmap_node(struct lpfc_vport *vport, 2525 struct lpfc_nodelist *ndlp, 2526 void *arg, 2527 uint32_t evt) 2528 { 2529 lpfc_drop_node(vport, ndlp); 2530 return NLP_STE_FREED_NODE; 2531 } 2532 2533 static uint32_t 2534 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2535 struct lpfc_nodelist *ndlp, 2536 void *arg, 2537 uint32_t evt) 2538 { 2539 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2540 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2541 clear_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2542 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2543 spin_lock_irq(&ndlp->lock); 2544 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2545 spin_unlock_irq(&ndlp->lock); 2546 lpfc_disc_set_adisc(vport, ndlp); 2547 2548 return ndlp->nlp_state; 2549 } 2550 2551 static uint32_t 2552 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2553 void *arg, uint32_t evt) 2554 { 2555 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2556 2557 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2558 return ndlp->nlp_state; 2559 } 2560 2561 static uint32_t 2562 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2563 void *arg, uint32_t evt) 2564 { 2565 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2566 2567 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2568 return ndlp->nlp_state; 2569 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2570 return ndlp->nlp_state; 2571 } 2572 2573 static uint32_t 2574 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2575 void *arg, uint32_t evt) 2576 { 2577 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2578 2579 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2580 return ndlp->nlp_state; 2581 } 2582 2583 static uint32_t 2584 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2585 struct lpfc_nodelist *ndlp, 2586 void *arg, uint32_t evt) 2587 { 2588 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2589 2590 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2591 return ndlp->nlp_state; 2592 } 2593 2594 static uint32_t 2595 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2596 void *arg, uint32_t evt) 2597 { 2598 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2599 2600 /* flush the target */ 2601 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2602 2603 /* Send PRLO_ACC */ 2604 set_bit(NLP_LOGO_ACC, &ndlp->nlp_flag); 2605 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2606 2607 /* Save ELS_CMD_PRLO as the last elscmd and then set to NPR. 2608 * lpfc_cmpl_els_logo_acc is expected to restart discovery. 2609 */ 2610 ndlp->nlp_last_elscmd = ELS_CMD_PRLO; 2611 ndlp->nlp_prev_state = ndlp->nlp_state; 2612 2613 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_ELS | LOG_DISCOVERY, 2614 "3422 DID x%06x nflag x%lx lastels x%x ref cnt %u\n", 2615 ndlp->nlp_DID, ndlp->nlp_flag, 2616 ndlp->nlp_last_elscmd, 2617 kref_read(&ndlp->kref)); 2618 2619 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2620 2621 return ndlp->nlp_state; 2622 } 2623 2624 static uint32_t 2625 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2626 struct lpfc_nodelist *ndlp, 2627 void *arg, 2628 uint32_t evt) 2629 { 2630 lpfc_disc_set_adisc(vport, ndlp); 2631 2632 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2633 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2634 clear_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2635 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2636 spin_lock_irq(&ndlp->lock); 2637 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2638 spin_unlock_irq(&ndlp->lock); 2639 return ndlp->nlp_state; 2640 } 2641 2642 static uint32_t 2643 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2644 void *arg, uint32_t evt) 2645 { 2646 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2647 2648 /* Ignore PLOGI if we have an outstanding LOGO */ 2649 if (test_bit(NLP_LOGO_SND, &ndlp->nlp_flag) || 2650 test_bit(NLP_LOGO_ACC, &ndlp->nlp_flag)) 2651 return ndlp->nlp_state; 2652 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2653 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2654 clear_bit(NLP_NPR_ADISC, &ndlp->nlp_flag); 2655 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2656 } else if (!test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 2657 /* send PLOGI immediately, move to PLOGI issue state */ 2658 if (!test_bit(NLP_DELAY_TMO, &ndlp->nlp_flag)) { 2659 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2660 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2661 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2662 } 2663 } 2664 return ndlp->nlp_state; 2665 } 2666 2667 static uint32_t 2668 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2669 void *arg, uint32_t evt) 2670 { 2671 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2672 struct ls_rjt stat; 2673 2674 memset(&stat, 0, sizeof (struct ls_rjt)); 2675 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2676 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2677 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2678 2679 if (!test_bit(NLP_DELAY_TMO, &ndlp->nlp_flag)) { 2680 /* 2681 * ADISC nodes will be handled in regular discovery path after 2682 * receiving response from NS. 2683 * 2684 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2685 */ 2686 if (!test_bit(NLP_NPR_ADISC, &ndlp->nlp_flag)) { 2687 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2688 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2689 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2690 } 2691 } 2692 return ndlp->nlp_state; 2693 } 2694 2695 static uint32_t 2696 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2697 void *arg, uint32_t evt) 2698 { 2699 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2700 2701 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2702 return ndlp->nlp_state; 2703 } 2704 2705 static uint32_t 2706 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2707 void *arg, uint32_t evt) 2708 { 2709 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2710 2711 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2712 /* 2713 * Do not start discovery if discovery is about to start 2714 * or discovery in progress for this node. Starting discovery 2715 * here will affect the counting of discovery threads. 2716 */ 2717 if (!test_bit(NLP_DELAY_TMO, &ndlp->nlp_flag) && 2718 !test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 2719 /* 2720 * ADISC nodes will be handled in regular discovery path after 2721 * receiving response from NS. 2722 * 2723 * For other nodes, Send PLOGI to trigger an implicit LOGO. 2724 */ 2725 if (!test_bit(NLP_NPR_ADISC, &ndlp->nlp_flag)) { 2726 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2727 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2728 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2729 } 2730 } 2731 return ndlp->nlp_state; 2732 } 2733 2734 static uint32_t 2735 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2736 void *arg, uint32_t evt) 2737 { 2738 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2739 2740 set_bit(NLP_LOGO_ACC, &ndlp->nlp_flag); 2741 2742 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2743 2744 if (!test_bit(NLP_DELAY_TMO, &ndlp->nlp_flag)) { 2745 mod_timer(&ndlp->nlp_delayfunc, 2746 jiffies + msecs_to_jiffies(1000 * 1)); 2747 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 2748 clear_bit(NLP_NPR_ADISC, &ndlp->nlp_flag); 2749 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2750 } else { 2751 clear_bit(NLP_NPR_ADISC, &ndlp->nlp_flag); 2752 } 2753 return ndlp->nlp_state; 2754 } 2755 2756 static uint32_t 2757 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2758 void *arg, uint32_t evt) 2759 { 2760 struct lpfc_hba *phba = vport->phba; 2761 struct lpfc_iocbq *cmdiocb, *rspiocb; 2762 u32 ulp_status; 2763 2764 cmdiocb = (struct lpfc_iocbq *) arg; 2765 rspiocb = cmdiocb->rsp_iocb; 2766 2767 ulp_status = get_job_ulpstatus(phba, rspiocb); 2768 2769 if (ulp_status) 2770 return NLP_STE_FREED_NODE; 2771 2772 return ndlp->nlp_state; 2773 } 2774 2775 static uint32_t 2776 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2777 void *arg, uint32_t evt) 2778 { 2779 struct lpfc_hba *phba = vport->phba; 2780 struct lpfc_iocbq *cmdiocb, *rspiocb; 2781 u32 ulp_status; 2782 2783 cmdiocb = (struct lpfc_iocbq *) arg; 2784 rspiocb = cmdiocb->rsp_iocb; 2785 2786 ulp_status = get_job_ulpstatus(phba, rspiocb); 2787 2788 if (ulp_status && test_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag)) { 2789 lpfc_drop_node(vport, ndlp); 2790 return NLP_STE_FREED_NODE; 2791 } 2792 return ndlp->nlp_state; 2793 } 2794 2795 static uint32_t 2796 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2797 void *arg, uint32_t evt) 2798 { 2799 /* For the fabric port just clear the fc flags. */ 2800 if (ndlp->nlp_DID == Fabric_DID) { 2801 clear_bit(FC_FABRIC, &vport->fc_flag); 2802 clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag); 2803 } 2804 lpfc_unreg_rpi(vport, ndlp); 2805 return ndlp->nlp_state; 2806 } 2807 2808 static uint32_t 2809 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2810 void *arg, uint32_t evt) 2811 { 2812 struct lpfc_hba *phba = vport->phba; 2813 struct lpfc_iocbq *cmdiocb, *rspiocb; 2814 u32 ulp_status; 2815 2816 cmdiocb = (struct lpfc_iocbq *) arg; 2817 rspiocb = cmdiocb->rsp_iocb; 2818 2819 ulp_status = get_job_ulpstatus(phba, rspiocb); 2820 2821 if (ulp_status && test_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag)) { 2822 lpfc_drop_node(vport, ndlp); 2823 return NLP_STE_FREED_NODE; 2824 } 2825 return ndlp->nlp_state; 2826 } 2827 2828 static uint32_t 2829 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2830 struct lpfc_nodelist *ndlp, 2831 void *arg, uint32_t evt) 2832 { 2833 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2834 MAILBOX_t *mb = &pmb->u.mb; 2835 2836 if (!mb->mbxStatus) { 2837 /* SLI4 ports have preallocated logical rpis. */ 2838 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2839 ndlp->nlp_rpi = mb->un.varWords[0]; 2840 set_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag); 2841 if (test_bit(NLP_LOGO_ACC, &ndlp->nlp_flag)) 2842 lpfc_unreg_rpi(vport, ndlp); 2843 } else { 2844 if (test_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag)) { 2845 lpfc_drop_node(vport, ndlp); 2846 return NLP_STE_FREED_NODE; 2847 } 2848 } 2849 return ndlp->nlp_state; 2850 } 2851 2852 static uint32_t 2853 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2854 void *arg, uint32_t evt) 2855 { 2856 if (test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 2857 set_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2858 return ndlp->nlp_state; 2859 } 2860 lpfc_drop_node(vport, ndlp); 2861 return NLP_STE_FREED_NODE; 2862 } 2863 2864 static uint32_t 2865 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2866 void *arg, uint32_t evt) 2867 { 2868 /* Don't do anything that disrupts the RSCN unless lpfc is unloading. */ 2869 if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag)) 2870 return ndlp->nlp_state; 2871 2872 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2873 clear_bit(NLP_NODEV_REMOVE, &ndlp->nlp_flag); 2874 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2875 spin_lock_irq(&ndlp->lock); 2876 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2877 spin_unlock_irq(&ndlp->lock); 2878 return ndlp->nlp_state; 2879 } 2880 2881 2882 /* This next section defines the NPort Discovery State Machine */ 2883 2884 /* There are 4 different double linked lists nodelist entries can reside on. 2885 * The plogi list and adisc list are used when Link Up discovery or RSCN 2886 * processing is needed. Each list holds the nodes that we will send PLOGI 2887 * or ADISC on. These lists will keep track of what nodes will be effected 2888 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2889 * The unmapped_list will contain all nodes that we have successfully logged 2890 * into at the Fibre Channel level. The mapped_list will contain all nodes 2891 * that are mapped FCP targets. 2892 */ 2893 /* 2894 * The bind list is a list of undiscovered (potentially non-existent) nodes 2895 * that we have saved binding information on. This information is used when 2896 * nodes transition from the unmapped to the mapped list. 2897 */ 2898 /* For UNUSED_NODE state, the node has just been allocated . 2899 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2900 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2901 * and put on the unmapped list. For ADISC processing, the node is taken off 2902 * the ADISC list and placed on either the mapped or unmapped list (depending 2903 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2904 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2905 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2906 * node, the node is taken off the unmapped list. The binding list is checked 2907 * for a valid binding, or a binding is automatically assigned. If binding 2908 * assignment is unsuccessful, the node is left on the unmapped list. If 2909 * binding assignment is successful, the associated binding list entry (if 2910 * any) is removed, and the node is placed on the mapped list. 2911 */ 2912 /* 2913 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2914 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2915 * expire, all effected nodes will receive a DEVICE_RM event. 2916 */ 2917 /* 2918 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2919 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2920 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2921 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2922 * we will first process the ADISC list. 32 entries are processed initially and 2923 * ADISC is initited for each one. Completions / Events for each node are 2924 * funnelled thru the state machine. As each node finishes ADISC processing, it 2925 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2926 * waiting, and the ADISC list count is identically 0, then we are done. For 2927 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2928 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2929 * list. 32 entries are processed initially and PLOGI is initited for each one. 2930 * Completions / Events for each node are funnelled thru the state machine. As 2931 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2932 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2933 * indentically 0, then we are done. We have now completed discovery / RSCN 2934 * handling. Upon completion, ALL nodes should be on either the mapped or 2935 * unmapped lists. 2936 */ 2937 2938 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2939 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2940 /* Action routine Event Current State */ 2941 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2942 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2943 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2944 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2945 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2946 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2947 lpfc_disc_illegal, /* CMPL_PLOGI */ 2948 lpfc_disc_illegal, /* CMPL_PRLI */ 2949 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2950 lpfc_disc_illegal, /* CMPL_ADISC */ 2951 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2952 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2953 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2954 2955 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2956 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2957 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2958 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2959 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2960 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2961 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2962 lpfc_disc_illegal, /* CMPL_PRLI */ 2963 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2964 lpfc_disc_illegal, /* CMPL_ADISC */ 2965 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2966 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2967 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2968 2969 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2970 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 2971 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 2972 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 2973 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 2974 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 2975 lpfc_disc_illegal, /* CMPL_PLOGI */ 2976 lpfc_disc_illegal, /* CMPL_PRLI */ 2977 lpfc_disc_illegal, /* CMPL_LOGO */ 2978 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 2979 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2980 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 2981 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 2982 2983 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 2984 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 2985 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 2986 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 2987 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 2988 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 2989 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2990 lpfc_disc_illegal, /* CMPL_PRLI */ 2991 lpfc_disc_illegal, /* CMPL_LOGO */ 2992 lpfc_disc_illegal, /* CMPL_ADISC */ 2993 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 2994 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 2995 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 2996 2997 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 2998 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 2999 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 3000 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 3001 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 3002 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 3003 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3004 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 3005 lpfc_disc_illegal, /* CMPL_LOGO */ 3006 lpfc_disc_illegal, /* CMPL_ADISC */ 3007 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3008 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 3009 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 3010 3011 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 3012 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 3013 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 3014 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 3015 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 3016 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 3017 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3018 lpfc_disc_illegal, /* CMPL_PRLI */ 3019 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 3020 lpfc_disc_illegal, /* CMPL_ADISC */ 3021 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3022 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 3023 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 3024 3025 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 3026 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 3027 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 3028 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 3029 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 3030 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 3031 lpfc_disc_illegal, /* CMPL_PLOGI */ 3032 lpfc_disc_illegal, /* CMPL_PRLI */ 3033 lpfc_disc_illegal, /* CMPL_LOGO */ 3034 lpfc_disc_illegal, /* CMPL_ADISC */ 3035 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3036 lpfc_device_rm_unmap_node, /* DEVICE_RM */ 3037 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 3038 3039 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 3040 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 3041 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 3042 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 3043 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 3044 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 3045 lpfc_disc_illegal, /* CMPL_PLOGI */ 3046 lpfc_disc_illegal, /* CMPL_PRLI */ 3047 lpfc_disc_illegal, /* CMPL_LOGO */ 3048 lpfc_disc_illegal, /* CMPL_ADISC */ 3049 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3050 lpfc_disc_illegal, /* DEVICE_RM */ 3051 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 3052 3053 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 3054 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 3055 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 3056 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 3057 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 3058 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 3059 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 3060 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 3061 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 3062 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 3063 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 3064 lpfc_device_rm_npr_node, /* DEVICE_RM */ 3065 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 3066 }; 3067 3068 int 3069 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3070 void *arg, uint32_t evt) 3071 { 3072 uint32_t cur_state, rc; 3073 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 3074 uint32_t); 3075 uint32_t got_ndlp = 0; 3076 uint32_t data1; 3077 3078 if (lpfc_nlp_get(ndlp)) 3079 got_ndlp = 1; 3080 3081 cur_state = ndlp->nlp_state; 3082 3083 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3084 ((uint32_t)ndlp->nlp_type)); 3085 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 3086 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3087 "0211 DSM in event x%x on NPort x%x in " 3088 "state %d rpi x%x Data: x%lx x%x\n", 3089 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, 3090 ndlp->nlp_flag, data1); 3091 3092 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3093 "DSM in: evt:%d ste:%d did:x%x", 3094 evt, cur_state, ndlp->nlp_DID); 3095 3096 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 3097 rc = (func) (vport, ndlp, arg, evt); 3098 3099 /* DSM out state <rc> on NPort <nlp_DID> */ 3100 if (got_ndlp) { 3101 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3102 ((uint32_t)ndlp->nlp_type)); 3103 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3104 "0212 DSM out state %d on NPort x%x " 3105 "rpi x%x Data: x%lx x%x\n", 3106 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag, 3107 data1); 3108 3109 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3110 "DSM out: ste:%d did:x%x flg:x%lx", 3111 rc, ndlp->nlp_DID, ndlp->nlp_flag); 3112 /* Decrement the ndlp reference count held for this function */ 3113 lpfc_nlp_put(ndlp); 3114 } else { 3115 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3116 "0213 DSM out state %d on NPort free\n", rc); 3117 3118 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3119 "DSM out: ste:%d did:x%x flg:x%x", 3120 rc, 0, 0); 3121 } 3122 3123 return rc; 3124 } 3125