1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/pci.h> 26 #include <linux/slab.h> 27 #include <linux/interrupt.h> 28 29 #include <scsi/scsi.h> 30 #include <scsi/scsi_device.h> 31 #include <scsi/scsi_host.h> 32 #include <scsi/scsi_transport_fc.h> 33 #include <scsi/fc/fc_fs.h> 34 35 #include "lpfc_hw4.h" 36 #include "lpfc_hw.h" 37 #include "lpfc_sli.h" 38 #include "lpfc_sli4.h" 39 #include "lpfc_nl.h" 40 #include "lpfc_disc.h" 41 #include "lpfc.h" 42 #include "lpfc_scsi.h" 43 #include "lpfc_nvme.h" 44 #include "lpfc_logmsg.h" 45 #include "lpfc_crtn.h" 46 #include "lpfc_vport.h" 47 #include "lpfc_debugfs.h" 48 49 50 /* Called to verify a rcv'ed ADISC was intended for us. */ 51 static int 52 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 53 struct lpfc_name *nn, struct lpfc_name *pn) 54 { 55 /* First, we MUST have a RPI registered */ 56 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) 57 return 0; 58 59 /* Compare the ADISC rsp WWNN / WWPN matches our internal node 60 * table entry for that node. 61 */ 62 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) 63 return 0; 64 65 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) 66 return 0; 67 68 /* we match, return success */ 69 return 1; 70 } 71 72 int 73 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 74 struct serv_parm *sp, uint32_t class, int flogi) 75 { 76 volatile struct serv_parm *hsp = &vport->fc_sparam; 77 uint16_t hsp_value, ssp_value = 0; 78 79 /* 80 * The receive data field size and buffer-to-buffer receive data field 81 * size entries are 16 bits but are represented as two 8-bit fields in 82 * the driver data structure to account for rsvd bits and other control 83 * bits. Reconstruct and compare the fields as a 16-bit values before 84 * correcting the byte values. 85 */ 86 if (sp->cls1.classValid) { 87 if (!flogi) { 88 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) | 89 hsp->cls1.rcvDataSizeLsb); 90 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) | 91 sp->cls1.rcvDataSizeLsb); 92 if (!ssp_value) 93 goto bad_service_param; 94 if (ssp_value > hsp_value) { 95 sp->cls1.rcvDataSizeLsb = 96 hsp->cls1.rcvDataSizeLsb; 97 sp->cls1.rcvDataSizeMsb = 98 hsp->cls1.rcvDataSizeMsb; 99 } 100 } 101 } else if (class == CLASS1) 102 goto bad_service_param; 103 if (sp->cls2.classValid) { 104 if (!flogi) { 105 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) | 106 hsp->cls2.rcvDataSizeLsb); 107 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) | 108 sp->cls2.rcvDataSizeLsb); 109 if (!ssp_value) 110 goto bad_service_param; 111 if (ssp_value > hsp_value) { 112 sp->cls2.rcvDataSizeLsb = 113 hsp->cls2.rcvDataSizeLsb; 114 sp->cls2.rcvDataSizeMsb = 115 hsp->cls2.rcvDataSizeMsb; 116 } 117 } 118 } else if (class == CLASS2) 119 goto bad_service_param; 120 if (sp->cls3.classValid) { 121 if (!flogi) { 122 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) | 123 hsp->cls3.rcvDataSizeLsb); 124 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) | 125 sp->cls3.rcvDataSizeLsb); 126 if (!ssp_value) 127 goto bad_service_param; 128 if (ssp_value > hsp_value) { 129 sp->cls3.rcvDataSizeLsb = 130 hsp->cls3.rcvDataSizeLsb; 131 sp->cls3.rcvDataSizeMsb = 132 hsp->cls3.rcvDataSizeMsb; 133 } 134 } 135 } else if (class == CLASS3) 136 goto bad_service_param; 137 138 /* 139 * Preserve the upper four bits of the MSB from the PLOGI response. 140 * These bits contain the Buffer-to-Buffer State Change Number 141 * from the target and need to be passed to the FW. 142 */ 143 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; 144 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; 145 if (ssp_value > hsp_value) { 146 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; 147 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | 148 (hsp->cmn.bbRcvSizeMsb & 0x0F); 149 } 150 151 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); 152 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); 153 return 1; 154 bad_service_param: 155 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 156 "0207 Device %x " 157 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 158 "invalid service parameters. Ignoring device.\n", 159 ndlp->nlp_DID, 160 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 161 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 162 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 163 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 164 return 0; 165 } 166 167 static void * 168 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 169 struct lpfc_iocbq *rspiocb) 170 { 171 struct lpfc_dmabuf *pcmd, *prsp; 172 uint32_t *lp; 173 void *ptr = NULL; 174 IOCB_t *irsp; 175 176 irsp = &rspiocb->iocb; 177 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 178 179 /* For lpfc_els_abort, context2 could be zero'ed to delay 180 * freeing associated memory till after ABTS completes. 181 */ 182 if (pcmd) { 183 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, 184 list); 185 if (prsp) { 186 lp = (uint32_t *) prsp->virt; 187 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); 188 } 189 } else { 190 /* Force ulpStatus error since we are returning NULL ptr */ 191 if (!(irsp->ulpStatus)) { 192 irsp->ulpStatus = IOSTAT_LOCAL_REJECT; 193 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED; 194 } 195 ptr = NULL; 196 } 197 return ptr; 198 } 199 200 201 202 /* 203 * Free resources / clean up outstanding I/Os 204 * associated with a LPFC_NODELIST entry. This 205 * routine effectively results in a "software abort". 206 */ 207 void 208 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 209 { 210 LIST_HEAD(abort_list); 211 struct lpfc_sli_ring *pring; 212 struct lpfc_iocbq *iocb, *next_iocb; 213 214 pring = lpfc_phba_elsring(phba); 215 216 /* In case of error recovery path, we might have a NULL pring here */ 217 if (unlikely(!pring)) 218 return; 219 220 /* Abort outstanding I/O on NPort <nlp_DID> */ 221 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, 222 "2819 Abort outstanding I/O on NPort x%x " 223 "Data: x%x x%x x%x\n", 224 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 225 ndlp->nlp_rpi); 226 /* Clean up all fabric IOs first.*/ 227 lpfc_fabric_abort_nport(ndlp); 228 229 /* 230 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list 231 * of all ELS IOs that need an ABTS. The IOs need to stay on the 232 * txcmplq so that the abort operation completes them successfully. 233 */ 234 spin_lock_irq(&phba->hbalock); 235 if (phba->sli_rev == LPFC_SLI_REV4) 236 spin_lock(&pring->ring_lock); 237 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 238 /* Add to abort_list on on NDLP match. */ 239 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 240 list_add_tail(&iocb->dlist, &abort_list); 241 } 242 if (phba->sli_rev == LPFC_SLI_REV4) 243 spin_unlock(&pring->ring_lock); 244 spin_unlock_irq(&phba->hbalock); 245 246 /* Abort the targeted IOs and remove them from the abort list. */ 247 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) { 248 spin_lock_irq(&phba->hbalock); 249 list_del_init(&iocb->dlist); 250 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 251 spin_unlock_irq(&phba->hbalock); 252 } 253 254 INIT_LIST_HEAD(&abort_list); 255 256 /* Now process the txq */ 257 spin_lock_irq(&phba->hbalock); 258 if (phba->sli_rev == LPFC_SLI_REV4) 259 spin_lock(&pring->ring_lock); 260 261 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 262 /* Check to see if iocb matches the nport we are looking for */ 263 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 264 list_del_init(&iocb->list); 265 list_add_tail(&iocb->list, &abort_list); 266 } 267 } 268 269 if (phba->sli_rev == LPFC_SLI_REV4) 270 spin_unlock(&pring->ring_lock); 271 spin_unlock_irq(&phba->hbalock); 272 273 /* Cancel all the IOCBs from the completions list */ 274 lpfc_sli_cancel_iocbs(phba, &abort_list, 275 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 276 277 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 278 } 279 280 /* lpfc_defer_pt2pt_acc - Complete SLI3 pt2pt processing on link up 281 * @phba: pointer to lpfc hba data structure. 282 * @link_mbox: pointer to CONFIG_LINK mailbox object 283 * 284 * This routine is only called if we are SLI3, direct connect pt2pt 285 * mode and the remote NPort issues the PLOGI after link up. 286 */ 287 static void 288 lpfc_defer_pt2pt_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *link_mbox) 289 { 290 LPFC_MBOXQ_t *login_mbox; 291 MAILBOX_t *mb = &link_mbox->u.mb; 292 struct lpfc_iocbq *save_iocb; 293 struct lpfc_nodelist *ndlp; 294 int rc; 295 296 ndlp = link_mbox->ctx_ndlp; 297 login_mbox = link_mbox->context3; 298 save_iocb = login_mbox->context3; 299 link_mbox->context3 = NULL; 300 login_mbox->context3 = NULL; 301 302 /* Check for CONFIG_LINK error */ 303 if (mb->mbxStatus) { 304 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 305 "4575 CONFIG_LINK fails pt2pt discovery: %x\n", 306 mb->mbxStatus); 307 mempool_free(login_mbox, phba->mbox_mem_pool); 308 mempool_free(link_mbox, phba->mbox_mem_pool); 309 kfree(save_iocb); 310 return; 311 } 312 313 /* Now that CONFIG_LINK completed, and our SID is configured, 314 * we can now proceed with sending the PLOGI ACC. 315 */ 316 rc = lpfc_els_rsp_acc(link_mbox->vport, ELS_CMD_PLOGI, 317 save_iocb, ndlp, login_mbox); 318 if (rc) { 319 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 320 "4576 PLOGI ACC fails pt2pt discovery: %x\n", 321 rc); 322 mempool_free(login_mbox, phba->mbox_mem_pool); 323 } 324 325 mempool_free(link_mbox, phba->mbox_mem_pool); 326 kfree(save_iocb); 327 } 328 329 /** 330 * lpfc_defer_tgt_acc - Progress SLI4 target rcv PLOGI handler 331 * @phba: Pointer to HBA context object. 332 * @pmb: Pointer to mailbox object. 333 * 334 * This function provides the unreg rpi mailbox completion handler for a tgt. 335 * The routine frees the memory resources associated with the completed 336 * mailbox command and transmits the ELS ACC. 337 * 338 * This routine is only called if we are SLI4, acting in target 339 * mode and the remote NPort issues the PLOGI after link up. 340 **/ 341 static void 342 lpfc_defer_acc_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 343 { 344 struct lpfc_vport *vport = pmb->vport; 345 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; 346 LPFC_MBOXQ_t *mbox = pmb->context3; 347 struct lpfc_iocbq *piocb = NULL; 348 int rc; 349 350 if (mbox) { 351 pmb->context3 = NULL; 352 piocb = mbox->context3; 353 mbox->context3 = NULL; 354 } 355 356 /* 357 * Complete the unreg rpi mbx request, and update flags. 358 * This will also restart any deferred events. 359 */ 360 lpfc_nlp_get(ndlp); 361 lpfc_sli4_unreg_rpi_cmpl_clr(phba, pmb); 362 363 if (!piocb) { 364 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY | LOG_ELS, 365 "4578 PLOGI ACC fail\n"); 366 if (mbox) 367 mempool_free(mbox, phba->mbox_mem_pool); 368 goto out; 369 } 370 371 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, piocb, ndlp, mbox); 372 if (rc) { 373 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY | LOG_ELS, 374 "4579 PLOGI ACC fail %x\n", rc); 375 if (mbox) 376 mempool_free(mbox, phba->mbox_mem_pool); 377 } 378 kfree(piocb); 379 out: 380 lpfc_nlp_put(ndlp); 381 } 382 383 static int 384 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 385 struct lpfc_iocbq *cmdiocb) 386 { 387 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 388 struct lpfc_hba *phba = vport->phba; 389 struct lpfc_dmabuf *pcmd; 390 uint64_t nlp_portwwn = 0; 391 uint32_t *lp; 392 IOCB_t *icmd; 393 struct serv_parm *sp; 394 uint32_t ed_tov; 395 LPFC_MBOXQ_t *link_mbox; 396 LPFC_MBOXQ_t *login_mbox; 397 struct lpfc_iocbq *save_iocb; 398 struct ls_rjt stat; 399 uint32_t vid, flag; 400 u16 rpi; 401 int rc, defer_acc; 402 403 memset(&stat, 0, sizeof (struct ls_rjt)); 404 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 405 lp = (uint32_t *) pcmd->virt; 406 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 407 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 408 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 409 "0140 PLOGI Reject: invalid nname\n"); 410 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 411 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 412 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 413 NULL); 414 return 0; 415 } 416 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 417 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 418 "0141 PLOGI Reject: invalid pname\n"); 419 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 420 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 421 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 422 NULL); 423 return 0; 424 } 425 426 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 427 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 428 /* Reject this request because invalid parameters */ 429 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 430 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 431 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 432 NULL); 433 return 0; 434 } 435 icmd = &cmdiocb->iocb; 436 437 /* PLOGI chkparm OK */ 438 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 439 "0114 PLOGI chkparm OK Data: x%x x%x x%x " 440 "x%x x%x x%x\n", 441 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 442 ndlp->nlp_rpi, vport->port_state, 443 vport->fc_flag); 444 445 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 446 ndlp->nlp_fcp_info |= CLASS2; 447 else 448 ndlp->nlp_fcp_info |= CLASS3; 449 450 defer_acc = 0; 451 ndlp->nlp_class_sup = 0; 452 if (sp->cls1.classValid) 453 ndlp->nlp_class_sup |= FC_COS_CLASS1; 454 if (sp->cls2.classValid) 455 ndlp->nlp_class_sup |= FC_COS_CLASS2; 456 if (sp->cls3.classValid) 457 ndlp->nlp_class_sup |= FC_COS_CLASS3; 458 if (sp->cls4.classValid) 459 ndlp->nlp_class_sup |= FC_COS_CLASS4; 460 ndlp->nlp_maxframe = 461 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 462 /* if already logged in, do implicit logout */ 463 switch (ndlp->nlp_state) { 464 case NLP_STE_NPR_NODE: 465 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 466 break; 467 /* fall through */ 468 case NLP_STE_REG_LOGIN_ISSUE: 469 case NLP_STE_PRLI_ISSUE: 470 case NLP_STE_UNMAPPED_NODE: 471 case NLP_STE_MAPPED_NODE: 472 /* For initiators, lpfc_plogi_confirm_nport skips fabric did. 473 * For target mode, execute implicit logo. 474 * Fabric nodes go into NPR. 475 */ 476 if (!(ndlp->nlp_type & NLP_FABRIC) && 477 !(phba->nvmet_support)) { 478 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 479 ndlp, NULL); 480 return 1; 481 } 482 if (nlp_portwwn != 0 && 483 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 484 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 485 "0143 PLOGI recv'd from DID: x%x " 486 "WWPN changed: old %llx new %llx\n", 487 ndlp->nlp_DID, 488 (unsigned long long)nlp_portwwn, 489 (unsigned long long) 490 wwn_to_u64(sp->portName.u.wwn)); 491 492 /* Notify transport of connectivity loss to trigger cleanup. */ 493 if (phba->nvmet_support && 494 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 495 lpfc_nvmet_invalidate_host(phba, ndlp); 496 497 ndlp->nlp_prev_state = ndlp->nlp_state; 498 /* rport needs to be unregistered first */ 499 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 500 break; 501 } 502 503 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 504 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 505 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 506 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 507 508 login_mbox = NULL; 509 link_mbox = NULL; 510 save_iocb = NULL; 511 512 /* Check for Nport to NPort pt2pt protocol */ 513 if ((vport->fc_flag & FC_PT2PT) && 514 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 515 /* rcv'ed PLOGI decides what our NPortId will be */ 516 vport->fc_myDID = icmd->un.rcvels.parmRo; 517 518 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 519 if (sp->cmn.edtovResolution) { 520 /* E_D_TOV ticks are in nanoseconds */ 521 ed_tov = (phba->fc_edtov + 999999) / 1000000; 522 } 523 524 /* 525 * For pt-to-pt, use the larger EDTOV 526 * RATOV = 2 * EDTOV 527 */ 528 if (ed_tov > phba->fc_edtov) 529 phba->fc_edtov = ed_tov; 530 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 531 532 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 533 534 /* Issue config_link / reg_vfi to account for updated TOV's */ 535 536 if (phba->sli_rev == LPFC_SLI_REV4) 537 lpfc_issue_reg_vfi(vport); 538 else { 539 defer_acc = 1; 540 link_mbox = mempool_alloc(phba->mbox_mem_pool, 541 GFP_KERNEL); 542 if (!link_mbox) 543 goto out; 544 lpfc_config_link(phba, link_mbox); 545 link_mbox->mbox_cmpl = lpfc_defer_pt2pt_acc; 546 link_mbox->vport = vport; 547 link_mbox->ctx_ndlp = ndlp; 548 549 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL); 550 if (!save_iocb) 551 goto out; 552 /* Save info from cmd IOCB used in rsp */ 553 memcpy((uint8_t *)save_iocb, (uint8_t *)cmdiocb, 554 sizeof(struct lpfc_iocbq)); 555 } 556 557 lpfc_can_disctmo(vport); 558 } 559 560 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 561 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 562 sp->cmn.valid_vendor_ver_level) { 563 vid = be32_to_cpu(sp->un.vv.vid); 564 flag = be32_to_cpu(sp->un.vv.flags); 565 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) 566 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 567 } 568 569 login_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 570 if (!login_mbox) 571 goto out; 572 573 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 574 if (phba->nvmet_support && !defer_acc) { 575 link_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 576 if (!link_mbox) 577 goto out; 578 579 /* As unique identifiers such as iotag would be overwritten 580 * with those from the cmdiocb, allocate separate temporary 581 * storage for the copy. 582 */ 583 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL); 584 if (!save_iocb) 585 goto out; 586 587 /* Unreg RPI is required for SLI4. */ 588 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 589 lpfc_unreg_login(phba, vport->vpi, rpi, link_mbox); 590 link_mbox->vport = vport; 591 link_mbox->ctx_ndlp = ndlp; 592 link_mbox->mbox_cmpl = lpfc_defer_acc_rsp; 593 594 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 595 (!(vport->fc_flag & FC_OFFLINE_MODE))) 596 ndlp->nlp_flag |= NLP_UNREG_INP; 597 598 /* Save info from cmd IOCB used in rsp */ 599 memcpy(save_iocb, cmdiocb, sizeof(*save_iocb)); 600 601 /* Delay sending ACC till unreg RPI completes. */ 602 defer_acc = 1; 603 } else if (phba->sli_rev == LPFC_SLI_REV4) 604 lpfc_unreg_rpi(vport, ndlp); 605 606 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID, 607 (uint8_t *)sp, login_mbox, ndlp->nlp_rpi); 608 if (rc) 609 goto out; 610 611 /* ACC PLOGI rsp command needs to execute first, 612 * queue this login_mbox command to be processed later. 613 */ 614 login_mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 615 /* 616 * login_mbox->ctx_ndlp = lpfc_nlp_get(ndlp) deferred until mailbox 617 * command issued in lpfc_cmpl_els_acc(). 618 */ 619 login_mbox->vport = vport; 620 spin_lock_irq(shost->host_lock); 621 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 622 spin_unlock_irq(shost->host_lock); 623 624 /* 625 * If there is an outstanding PLOGI issued, abort it before 626 * sending ACC rsp for received PLOGI. If pending plogi 627 * is not canceled here, the plogi will be rejected by 628 * remote port and will be retried. On a configuration with 629 * single discovery thread, this will cause a huge delay in 630 * discovery. Also this will cause multiple state machines 631 * running in parallel for this node. 632 * This only applies to a fabric environment. 633 */ 634 if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) && 635 (vport->fc_flag & FC_FABRIC)) { 636 /* software abort outstanding PLOGI */ 637 lpfc_els_abort(phba, ndlp); 638 } 639 640 if ((vport->port_type == LPFC_NPIV_PORT && 641 vport->cfg_restrict_login)) { 642 643 /* no deferred ACC */ 644 kfree(save_iocb); 645 646 /* In order to preserve RPIs, we want to cleanup 647 * the default RPI the firmware created to rcv 648 * this ELS request. The only way to do this is 649 * to register, then unregister the RPI. 650 */ 651 spin_lock_irq(shost->host_lock); 652 ndlp->nlp_flag |= NLP_RM_DFLT_RPI; 653 spin_unlock_irq(shost->host_lock); 654 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 655 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 656 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 657 ndlp, login_mbox); 658 if (rc) 659 mempool_free(login_mbox, phba->mbox_mem_pool); 660 return 1; 661 } 662 if (defer_acc) { 663 /* So the order here should be: 664 * SLI3 pt2pt 665 * Issue CONFIG_LINK mbox 666 * CONFIG_LINK cmpl 667 * SLI4 tgt 668 * Issue UNREG RPI mbx 669 * UNREG RPI cmpl 670 * Issue PLOGI ACC 671 * PLOGI ACC cmpl 672 * Issue REG_LOGIN mbox 673 */ 674 675 /* Save the REG_LOGIN mbox for and rcv IOCB copy later */ 676 link_mbox->context3 = login_mbox; 677 login_mbox->context3 = save_iocb; 678 679 /* Start the ball rolling by issuing CONFIG_LINK here */ 680 rc = lpfc_sli_issue_mbox(phba, link_mbox, MBX_NOWAIT); 681 if (rc == MBX_NOT_FINISHED) 682 goto out; 683 return 1; 684 } 685 686 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, login_mbox); 687 if (rc) 688 mempool_free(login_mbox, phba->mbox_mem_pool); 689 return 1; 690 out: 691 if (defer_acc) 692 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 693 "4577 discovery failure: %p %p %p\n", 694 save_iocb, link_mbox, login_mbox); 695 kfree(save_iocb); 696 if (link_mbox) 697 mempool_free(link_mbox, phba->mbox_mem_pool); 698 if (login_mbox) 699 mempool_free(login_mbox, phba->mbox_mem_pool); 700 701 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 702 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 703 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 704 return 0; 705 } 706 707 /** 708 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 709 * @phba: pointer to lpfc hba data structure. 710 * @mboxq: pointer to mailbox object 711 * 712 * This routine is invoked to issue a completion to a rcv'ed 713 * ADISC or PDISC after the paused RPI has been resumed. 714 **/ 715 static void 716 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 717 { 718 struct lpfc_vport *vport; 719 struct lpfc_iocbq *elsiocb; 720 struct lpfc_nodelist *ndlp; 721 uint32_t cmd; 722 723 elsiocb = (struct lpfc_iocbq *)mboxq->ctx_buf; 724 ndlp = (struct lpfc_nodelist *)mboxq->ctx_ndlp; 725 vport = mboxq->vport; 726 cmd = elsiocb->drvrTimeout; 727 728 if (cmd == ELS_CMD_ADISC) { 729 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 730 } else { 731 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 732 ndlp, NULL); 733 } 734 kfree(elsiocb); 735 mempool_free(mboxq, phba->mbox_mem_pool); 736 } 737 738 static int 739 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 740 struct lpfc_iocbq *cmdiocb) 741 { 742 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 743 struct lpfc_iocbq *elsiocb; 744 struct lpfc_dmabuf *pcmd; 745 struct serv_parm *sp; 746 struct lpfc_name *pnn, *ppn; 747 struct ls_rjt stat; 748 ADISC *ap; 749 IOCB_t *icmd; 750 uint32_t *lp; 751 uint32_t cmd; 752 753 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 754 lp = (uint32_t *) pcmd->virt; 755 756 cmd = *lp++; 757 if (cmd == ELS_CMD_ADISC) { 758 ap = (ADISC *) lp; 759 pnn = (struct lpfc_name *) & ap->nodeName; 760 ppn = (struct lpfc_name *) & ap->portName; 761 } else { 762 sp = (struct serv_parm *) lp; 763 pnn = (struct lpfc_name *) & sp->nodeName; 764 ppn = (struct lpfc_name *) & sp->portName; 765 } 766 767 icmd = &cmdiocb->iocb; 768 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 769 770 /* 771 * As soon as we send ACC, the remote NPort can 772 * start sending us data. Thus, for SLI4 we must 773 * resume the RPI before the ACC goes out. 774 */ 775 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 776 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 777 GFP_KERNEL); 778 if (elsiocb) { 779 780 /* Save info from cmd IOCB used in rsp */ 781 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 782 sizeof(struct lpfc_iocbq)); 783 784 /* Save the ELS cmd */ 785 elsiocb->drvrTimeout = cmd; 786 787 lpfc_sli4_resume_rpi(ndlp, 788 lpfc_mbx_cmpl_resume_rpi, elsiocb); 789 goto out; 790 } 791 } 792 793 if (cmd == ELS_CMD_ADISC) { 794 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 795 } else { 796 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 797 ndlp, NULL); 798 } 799 out: 800 /* If we are authenticated, move to the proper state */ 801 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 802 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 803 else 804 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 805 806 return 1; 807 } 808 /* Reject this request because invalid parameters */ 809 stat.un.b.lsRjtRsvd0 = 0; 810 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 811 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 812 stat.un.b.vendorUnique = 0; 813 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 814 815 /* 1 sec timeout */ 816 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 817 818 spin_lock_irq(shost->host_lock); 819 ndlp->nlp_flag |= NLP_DELAY_TMO; 820 spin_unlock_irq(shost->host_lock); 821 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 822 ndlp->nlp_prev_state = ndlp->nlp_state; 823 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 824 return 0; 825 } 826 827 static int 828 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 829 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 830 { 831 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 832 struct lpfc_hba *phba = vport->phba; 833 struct lpfc_vport **vports; 834 int i, active_vlink_present = 0 ; 835 836 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 837 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 838 * PLOGIs during LOGO storms from a device. 839 */ 840 spin_lock_irq(shost->host_lock); 841 ndlp->nlp_flag |= NLP_LOGO_ACC; 842 spin_unlock_irq(shost->host_lock); 843 if (els_cmd == ELS_CMD_PRLO) 844 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 845 else 846 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 847 848 /* Notify transport of connectivity loss to trigger cleanup. */ 849 if (phba->nvmet_support && 850 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 851 lpfc_nvmet_invalidate_host(phba, ndlp); 852 853 if (ndlp->nlp_DID == Fabric_DID) { 854 if (vport->port_state <= LPFC_FDISC) 855 goto out; 856 lpfc_linkdown_port(vport); 857 spin_lock_irq(shost->host_lock); 858 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 859 spin_unlock_irq(shost->host_lock); 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 ((!(vports[i]->fc_flag & 865 FC_VPORT_LOGO_RCVD)) && 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 (!(vport->load_flag & FC_UNLOADING) && 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 spin_lock_irq(shost->host_lock); 888 ndlp->nlp_flag |= NLP_DELAY_TMO; 889 spin_unlock_irq(shost->host_lock); 890 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 891 vport->port_state = LPFC_FDISC; 892 } else { 893 spin_lock_irq(shost->host_lock); 894 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 895 spin_unlock_irq(shost->host_lock); 896 lpfc_retry_pport_discovery(phba); 897 } 898 } else if ((!(ndlp->nlp_type & NLP_FABRIC) && 899 ((ndlp->nlp_type & NLP_FCP_TARGET) || 900 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) || 901 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { 902 /* Only try to re-login if this is NOT a Fabric Node */ 903 mod_timer(&ndlp->nlp_delayfunc, 904 jiffies + msecs_to_jiffies(1000 * 1)); 905 spin_lock_irq(shost->host_lock); 906 ndlp->nlp_flag |= NLP_DELAY_TMO; 907 spin_unlock_irq(shost->host_lock); 908 909 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 910 } 911 out: 912 ndlp->nlp_prev_state = ndlp->nlp_state; 913 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 914 915 spin_lock_irq(shost->host_lock); 916 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 917 spin_unlock_irq(shost->host_lock); 918 /* The driver has to wait until the ACC completes before it continues 919 * processing the LOGO. The action will resume in 920 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 921 * unreg_login, the driver waits so the ACC does not get aborted. 922 */ 923 return 0; 924 } 925 926 static uint32_t 927 lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 928 struct lpfc_nodelist *ndlp, 929 struct lpfc_iocbq *cmdiocb) 930 { 931 struct ls_rjt stat; 932 uint32_t *payload; 933 uint32_t cmd; 934 935 payload = ((struct lpfc_dmabuf *)cmdiocb->context2)->virt; 936 cmd = *payload; 937 if (vport->phba->nvmet_support) { 938 /* Must be a NVME PRLI */ 939 if (cmd == ELS_CMD_PRLI) 940 goto out; 941 } else { 942 /* Initiator mode. */ 943 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 944 goto out; 945 } 946 return 1; 947 out: 948 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC, 949 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 950 "state x%x flags x%x\n", 951 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 952 ndlp->nlp_flag); 953 memset(&stat, 0, sizeof(struct ls_rjt)); 954 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 955 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 956 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 957 ndlp, NULL); 958 return 0; 959 } 960 961 static void 962 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 963 struct lpfc_iocbq *cmdiocb) 964 { 965 struct lpfc_hba *phba = vport->phba; 966 struct lpfc_dmabuf *pcmd; 967 uint32_t *lp; 968 PRLI *npr; 969 struct fc_rport *rport = ndlp->rport; 970 u32 roles; 971 972 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 973 lp = (uint32_t *) pcmd->virt; 974 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t)); 975 976 if ((npr->prliType == PRLI_FCP_TYPE) || 977 (npr->prliType == PRLI_NVME_TYPE)) { 978 if (npr->initiatorFunc) { 979 if (npr->prliType == PRLI_FCP_TYPE) 980 ndlp->nlp_type |= NLP_FCP_INITIATOR; 981 if (npr->prliType == PRLI_NVME_TYPE) 982 ndlp->nlp_type |= NLP_NVME_INITIATOR; 983 } 984 if (npr->targetFunc) { 985 if (npr->prliType == PRLI_FCP_TYPE) 986 ndlp->nlp_type |= NLP_FCP_TARGET; 987 if (npr->prliType == PRLI_NVME_TYPE) 988 ndlp->nlp_type |= NLP_NVME_TARGET; 989 if (npr->writeXferRdyDis) 990 ndlp->nlp_flag |= NLP_FIRSTBURST; 991 } 992 if (npr->Retry && ndlp->nlp_type & 993 (NLP_FCP_INITIATOR | NLP_FCP_TARGET)) 994 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 995 996 if (npr->Retry && phba->nsler && 997 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET)) 998 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 999 1000 1001 /* If this driver is in nvme target mode, set the ndlp's fc4 1002 * type to NVME provided the PRLI response claims NVME FC4 1003 * type. Target mode does not issue gft_id so doesn't get 1004 * the fc4 type set until now. 1005 */ 1006 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 1007 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1008 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1009 } 1010 if (npr->prliType == PRLI_FCP_TYPE) 1011 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1012 } 1013 if (rport) { 1014 /* We need to update the rport role values */ 1015 roles = FC_RPORT_ROLE_UNKNOWN; 1016 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 1017 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 1018 if (ndlp->nlp_type & NLP_FCP_TARGET) 1019 roles |= FC_RPORT_ROLE_FCP_TARGET; 1020 1021 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 1022 "rport rolechg: role:x%x did:x%x flg:x%x", 1023 roles, ndlp->nlp_DID, ndlp->nlp_flag); 1024 1025 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1026 fc_remote_port_rolechg(rport, roles); 1027 } 1028 } 1029 1030 static uint32_t 1031 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 1032 { 1033 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1034 1035 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 1036 spin_lock_irq(shost->host_lock); 1037 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1038 spin_unlock_irq(shost->host_lock); 1039 return 0; 1040 } 1041 1042 if (!(vport->fc_flag & FC_PT2PT)) { 1043 /* Check config parameter use-adisc or FCP-2 */ 1044 if (vport->cfg_use_adisc && ((vport->fc_flag & FC_RSCN_MODE) || 1045 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 1046 (ndlp->nlp_type & NLP_FCP_TARGET)))) { 1047 spin_lock_irq(shost->host_lock); 1048 ndlp->nlp_flag |= NLP_NPR_ADISC; 1049 spin_unlock_irq(shost->host_lock); 1050 return 1; 1051 } 1052 } 1053 1054 spin_lock_irq(shost->host_lock); 1055 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1056 spin_unlock_irq(shost->host_lock); 1057 lpfc_unreg_rpi(vport, ndlp); 1058 return 0; 1059 } 1060 1061 /** 1062 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 1063 * @phba : Pointer to lpfc_hba structure. 1064 * @vport: Pointer to lpfc_vport structure. 1065 * @rpi : rpi to be release. 1066 * 1067 * This function will send a unreg_login mailbox command to the firmware 1068 * to release a rpi. 1069 **/ 1070 static void 1071 lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, 1072 struct lpfc_nodelist *ndlp, uint16_t rpi) 1073 { 1074 LPFC_MBOXQ_t *pmb; 1075 int rc; 1076 1077 /* If there is already an UNREG in progress for this ndlp, 1078 * no need to queue up another one. 1079 */ 1080 if (ndlp->nlp_flag & NLP_UNREG_INP) { 1081 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1082 "1435 release_rpi SKIP UNREG x%x on " 1083 "NPort x%x deferred x%x flg x%x " 1084 "Data: x%px\n", 1085 ndlp->nlp_rpi, ndlp->nlp_DID, 1086 ndlp->nlp_defer_did, 1087 ndlp->nlp_flag, ndlp); 1088 return; 1089 } 1090 1091 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 1092 GFP_KERNEL); 1093 if (!pmb) 1094 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1095 "2796 mailbox memory allocation failed \n"); 1096 else { 1097 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 1098 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1099 pmb->vport = vport; 1100 pmb->ctx_ndlp = ndlp; 1101 1102 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 1103 (!(vport->fc_flag & FC_OFFLINE_MODE))) 1104 ndlp->nlp_flag |= NLP_UNREG_INP; 1105 1106 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1107 "1437 release_rpi UNREG x%x " 1108 "on NPort x%x flg x%x\n", 1109 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); 1110 1111 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 1112 if (rc == MBX_NOT_FINISHED) 1113 mempool_free(pmb, phba->mbox_mem_pool); 1114 } 1115 } 1116 1117 static uint32_t 1118 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1119 void *arg, uint32_t evt) 1120 { 1121 struct lpfc_hba *phba; 1122 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1123 uint16_t rpi; 1124 1125 phba = vport->phba; 1126 /* Release the RPI if reglogin completing */ 1127 if (!(phba->pport->load_flag & FC_UNLOADING) && 1128 (evt == NLP_EVT_CMPL_REG_LOGIN) && 1129 (!pmb->u.mb.mbxStatus)) { 1130 rpi = pmb->u.mb.un.varWords[0]; 1131 lpfc_release_rpi(phba, vport, ndlp, rpi); 1132 } 1133 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1134 "0271 Illegal State Transition: node x%x " 1135 "event x%x, state x%x Data: x%x x%x\n", 1136 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1137 ndlp->nlp_flag); 1138 return ndlp->nlp_state; 1139 } 1140 1141 static uint32_t 1142 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1143 void *arg, uint32_t evt) 1144 { 1145 /* This transition is only legal if we previously 1146 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 1147 * working on the same NPortID, do nothing for this thread 1148 * to stop it. 1149 */ 1150 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 1151 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1152 "0272 Illegal State Transition: node x%x " 1153 "event x%x, state x%x Data: x%x x%x\n", 1154 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1155 ndlp->nlp_flag); 1156 } 1157 return ndlp->nlp_state; 1158 } 1159 1160 /* Start of Discovery State Machine routines */ 1161 1162 static uint32_t 1163 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1164 void *arg, uint32_t evt) 1165 { 1166 struct lpfc_iocbq *cmdiocb; 1167 1168 cmdiocb = (struct lpfc_iocbq *) arg; 1169 1170 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1171 return ndlp->nlp_state; 1172 } 1173 return NLP_STE_FREED_NODE; 1174 } 1175 1176 static uint32_t 1177 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1178 void *arg, uint32_t evt) 1179 { 1180 lpfc_issue_els_logo(vport, ndlp, 0); 1181 return ndlp->nlp_state; 1182 } 1183 1184 static uint32_t 1185 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1186 void *arg, uint32_t evt) 1187 { 1188 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1189 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1190 1191 spin_lock_irq(shost->host_lock); 1192 ndlp->nlp_flag |= NLP_LOGO_ACC; 1193 spin_unlock_irq(shost->host_lock); 1194 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1195 1196 return ndlp->nlp_state; 1197 } 1198 1199 static uint32_t 1200 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1201 void *arg, uint32_t evt) 1202 { 1203 return NLP_STE_FREED_NODE; 1204 } 1205 1206 static uint32_t 1207 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1208 void *arg, uint32_t evt) 1209 { 1210 return NLP_STE_FREED_NODE; 1211 } 1212 1213 static uint32_t 1214 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 1215 struct lpfc_nodelist *ndlp, 1216 void *arg, uint32_t evt) 1217 { 1218 return ndlp->nlp_state; 1219 } 1220 1221 static uint32_t 1222 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1223 void *arg, uint32_t evt) 1224 { 1225 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1226 struct lpfc_hba *phba = vport->phba; 1227 struct lpfc_iocbq *cmdiocb = arg; 1228 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1229 uint32_t *lp = (uint32_t *) pcmd->virt; 1230 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1231 struct ls_rjt stat; 1232 int port_cmp; 1233 1234 memset(&stat, 0, sizeof (struct ls_rjt)); 1235 1236 /* For a PLOGI, we only accept if our portname is less 1237 * than the remote portname. 1238 */ 1239 phba->fc_stat.elsLogiCol++; 1240 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1241 sizeof(struct lpfc_name)); 1242 1243 if (port_cmp >= 0) { 1244 /* Reject this request because the remote node will accept 1245 ours */ 1246 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1247 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1248 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1249 NULL); 1250 } else { 1251 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1252 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 1253 (vport->num_disc_nodes)) { 1254 spin_lock_irq(shost->host_lock); 1255 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1256 spin_unlock_irq(shost->host_lock); 1257 /* Check if there are more PLOGIs to be sent */ 1258 lpfc_more_plogi(vport); 1259 if (vport->num_disc_nodes == 0) { 1260 spin_lock_irq(shost->host_lock); 1261 vport->fc_flag &= ~FC_NDISC_ACTIVE; 1262 spin_unlock_irq(shost->host_lock); 1263 lpfc_can_disctmo(vport); 1264 lpfc_end_rscn(vport); 1265 } 1266 } 1267 } /* If our portname was less */ 1268 1269 return ndlp->nlp_state; 1270 } 1271 1272 static uint32_t 1273 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1274 void *arg, uint32_t evt) 1275 { 1276 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1277 struct ls_rjt stat; 1278 1279 memset(&stat, 0, sizeof (struct ls_rjt)); 1280 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1281 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1282 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1283 return ndlp->nlp_state; 1284 } 1285 1286 static uint32_t 1287 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1288 void *arg, uint32_t evt) 1289 { 1290 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1291 1292 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1293 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1294 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1295 /* software abort outstanding PLOGI */ 1296 lpfc_els_abort(vport->phba, ndlp); 1297 1298 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1299 return ndlp->nlp_state; 1300 } 1301 1302 static uint32_t 1303 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1304 void *arg, uint32_t evt) 1305 { 1306 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1307 struct lpfc_hba *phba = vport->phba; 1308 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1309 1310 /* software abort outstanding PLOGI */ 1311 lpfc_els_abort(phba, ndlp); 1312 1313 if (evt == NLP_EVT_RCV_LOGO) { 1314 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1315 } else { 1316 lpfc_issue_els_logo(vport, ndlp, 0); 1317 } 1318 1319 /* Put ndlp in npr state set plogi timer for 1 sec */ 1320 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1321 spin_lock_irq(shost->host_lock); 1322 ndlp->nlp_flag |= NLP_DELAY_TMO; 1323 spin_unlock_irq(shost->host_lock); 1324 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1325 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1326 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1327 1328 return ndlp->nlp_state; 1329 } 1330 1331 static uint32_t 1332 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1333 struct lpfc_nodelist *ndlp, 1334 void *arg, 1335 uint32_t evt) 1336 { 1337 struct lpfc_hba *phba = vport->phba; 1338 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1339 struct lpfc_iocbq *cmdiocb, *rspiocb; 1340 struct lpfc_dmabuf *pcmd, *prsp, *mp; 1341 uint32_t *lp; 1342 uint32_t vid, flag; 1343 IOCB_t *irsp; 1344 struct serv_parm *sp; 1345 uint32_t ed_tov; 1346 LPFC_MBOXQ_t *mbox; 1347 int rc; 1348 1349 cmdiocb = (struct lpfc_iocbq *) arg; 1350 rspiocb = cmdiocb->context_un.rsp_iocb; 1351 1352 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1353 /* Recovery from PLOGI collision logic */ 1354 return ndlp->nlp_state; 1355 } 1356 1357 irsp = &rspiocb->iocb; 1358 1359 if (irsp->ulpStatus) 1360 goto out; 1361 1362 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1363 1364 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1365 if (!prsp) 1366 goto out; 1367 1368 lp = (uint32_t *) prsp->virt; 1369 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1370 1371 /* Some switches have FDMI servers returning 0 for WWN */ 1372 if ((ndlp->nlp_DID != FDMI_DID) && 1373 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1374 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1375 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1376 "0142 PLOGI RSP: Invalid WWN.\n"); 1377 goto out; 1378 } 1379 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1380 goto out; 1381 /* PLOGI chkparm OK */ 1382 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1383 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1384 ndlp->nlp_DID, ndlp->nlp_state, 1385 ndlp->nlp_flag, ndlp->nlp_rpi); 1386 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1387 ndlp->nlp_fcp_info |= CLASS2; 1388 else 1389 ndlp->nlp_fcp_info |= CLASS3; 1390 1391 ndlp->nlp_class_sup = 0; 1392 if (sp->cls1.classValid) 1393 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1394 if (sp->cls2.classValid) 1395 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1396 if (sp->cls3.classValid) 1397 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1398 if (sp->cls4.classValid) 1399 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1400 ndlp->nlp_maxframe = 1401 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1402 1403 if ((vport->fc_flag & FC_PT2PT) && 1404 (vport->fc_flag & FC_PT2PT_PLOGI)) { 1405 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1406 if (sp->cmn.edtovResolution) { 1407 /* E_D_TOV ticks are in nanoseconds */ 1408 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1409 } 1410 1411 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 1412 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1413 sp->cmn.valid_vendor_ver_level) { 1414 vid = be32_to_cpu(sp->un.vv.vid); 1415 flag = be32_to_cpu(sp->un.vv.flags); 1416 if ((vid == LPFC_VV_EMLX_ID) && 1417 (flag & LPFC_VV_SUPPRESS_RSP)) 1418 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 1419 } 1420 1421 /* 1422 * Use the larger EDTOV 1423 * RATOV = 2 * EDTOV for pt-to-pt 1424 */ 1425 if (ed_tov > phba->fc_edtov) 1426 phba->fc_edtov = ed_tov; 1427 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1428 1429 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1430 1431 /* Issue config_link / reg_vfi to account for updated TOV's */ 1432 if (phba->sli_rev == LPFC_SLI_REV4) { 1433 lpfc_issue_reg_vfi(vport); 1434 } else { 1435 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1436 if (!mbox) { 1437 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1438 "0133 PLOGI: no memory " 1439 "for config_link " 1440 "Data: x%x x%x x%x x%x\n", 1441 ndlp->nlp_DID, ndlp->nlp_state, 1442 ndlp->nlp_flag, ndlp->nlp_rpi); 1443 goto out; 1444 } 1445 1446 lpfc_config_link(phba, mbox); 1447 1448 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1449 mbox->vport = vport; 1450 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1451 if (rc == MBX_NOT_FINISHED) { 1452 mempool_free(mbox, phba->mbox_mem_pool); 1453 goto out; 1454 } 1455 } 1456 } 1457 1458 lpfc_unreg_rpi(vport, ndlp); 1459 1460 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1461 if (!mbox) { 1462 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1463 "0018 PLOGI: no memory for reg_login " 1464 "Data: x%x x%x x%x x%x\n", 1465 ndlp->nlp_DID, ndlp->nlp_state, 1466 ndlp->nlp_flag, ndlp->nlp_rpi); 1467 goto out; 1468 } 1469 1470 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID, 1471 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1472 switch (ndlp->nlp_DID) { 1473 case NameServer_DID: 1474 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1475 break; 1476 case FDMI_DID: 1477 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1478 break; 1479 default: 1480 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1481 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1482 } 1483 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1484 mbox->vport = vport; 1485 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1486 != MBX_NOT_FINISHED) { 1487 lpfc_nlp_set_state(vport, ndlp, 1488 NLP_STE_REG_LOGIN_ISSUE); 1489 return ndlp->nlp_state; 1490 } 1491 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1492 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1493 /* decrement node reference count to the failed mbox 1494 * command 1495 */ 1496 lpfc_nlp_put(ndlp); 1497 mp = (struct lpfc_dmabuf *)mbox->ctx_buf; 1498 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1499 kfree(mp); 1500 mempool_free(mbox, phba->mbox_mem_pool); 1501 1502 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1503 "0134 PLOGI: cannot issue reg_login " 1504 "Data: x%x x%x x%x x%x\n", 1505 ndlp->nlp_DID, ndlp->nlp_state, 1506 ndlp->nlp_flag, ndlp->nlp_rpi); 1507 } else { 1508 mempool_free(mbox, phba->mbox_mem_pool); 1509 1510 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1511 "0135 PLOGI: cannot format reg_login " 1512 "Data: x%x x%x x%x x%x\n", 1513 ndlp->nlp_DID, ndlp->nlp_state, 1514 ndlp->nlp_flag, ndlp->nlp_rpi); 1515 } 1516 1517 1518 out: 1519 if (ndlp->nlp_DID == NameServer_DID) { 1520 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1521 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1522 "0261 Cannot Register NameServer login\n"); 1523 } 1524 1525 /* 1526 ** In case the node reference counter does not go to zero, ensure that 1527 ** the stale state for the node is not processed. 1528 */ 1529 1530 ndlp->nlp_prev_state = ndlp->nlp_state; 1531 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1532 spin_lock_irq(shost->host_lock); 1533 ndlp->nlp_flag |= NLP_DEFER_RM; 1534 spin_unlock_irq(shost->host_lock); 1535 return NLP_STE_FREED_NODE; 1536 } 1537 1538 static uint32_t 1539 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1540 void *arg, uint32_t evt) 1541 { 1542 return ndlp->nlp_state; 1543 } 1544 1545 static uint32_t 1546 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1547 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1548 { 1549 struct lpfc_hba *phba; 1550 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1551 MAILBOX_t *mb = &pmb->u.mb; 1552 uint16_t rpi; 1553 1554 phba = vport->phba; 1555 /* Release the RPI */ 1556 if (!(phba->pport->load_flag & FC_UNLOADING) && 1557 !mb->mbxStatus) { 1558 rpi = pmb->u.mb.un.varWords[0]; 1559 lpfc_release_rpi(phba, vport, ndlp, rpi); 1560 } 1561 return ndlp->nlp_state; 1562 } 1563 1564 static uint32_t 1565 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1566 void *arg, uint32_t evt) 1567 { 1568 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1569 1570 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1571 spin_lock_irq(shost->host_lock); 1572 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1573 spin_unlock_irq(shost->host_lock); 1574 return ndlp->nlp_state; 1575 } else { 1576 /* software abort outstanding PLOGI */ 1577 lpfc_els_abort(vport->phba, ndlp); 1578 1579 lpfc_drop_node(vport, ndlp); 1580 return NLP_STE_FREED_NODE; 1581 } 1582 } 1583 1584 static uint32_t 1585 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1586 struct lpfc_nodelist *ndlp, 1587 void *arg, 1588 uint32_t evt) 1589 { 1590 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1591 struct lpfc_hba *phba = vport->phba; 1592 1593 /* Don't do anything that will mess up processing of the 1594 * previous RSCN. 1595 */ 1596 if (vport->fc_flag & FC_RSCN_DEFERRED) 1597 return ndlp->nlp_state; 1598 1599 /* software abort outstanding PLOGI */ 1600 lpfc_els_abort(phba, ndlp); 1601 1602 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1603 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1604 spin_lock_irq(shost->host_lock); 1605 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1606 spin_unlock_irq(shost->host_lock); 1607 1608 return ndlp->nlp_state; 1609 } 1610 1611 static uint32_t 1612 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1613 void *arg, uint32_t evt) 1614 { 1615 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1616 struct lpfc_hba *phba = vport->phba; 1617 struct lpfc_iocbq *cmdiocb; 1618 1619 /* software abort outstanding ADISC */ 1620 lpfc_els_abort(phba, ndlp); 1621 1622 cmdiocb = (struct lpfc_iocbq *) arg; 1623 1624 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1625 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1626 spin_lock_irq(shost->host_lock); 1627 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1628 spin_unlock_irq(shost->host_lock); 1629 if (vport->num_disc_nodes) 1630 lpfc_more_adisc(vport); 1631 } 1632 return ndlp->nlp_state; 1633 } 1634 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1635 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1636 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1637 1638 return ndlp->nlp_state; 1639 } 1640 1641 static uint32_t 1642 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1643 void *arg, uint32_t evt) 1644 { 1645 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1646 1647 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1648 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1649 return ndlp->nlp_state; 1650 } 1651 1652 static uint32_t 1653 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1654 void *arg, uint32_t evt) 1655 { 1656 struct lpfc_hba *phba = vport->phba; 1657 struct lpfc_iocbq *cmdiocb; 1658 1659 cmdiocb = (struct lpfc_iocbq *) arg; 1660 1661 /* software abort outstanding ADISC */ 1662 lpfc_els_abort(phba, ndlp); 1663 1664 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1665 return ndlp->nlp_state; 1666 } 1667 1668 static uint32_t 1669 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1670 struct lpfc_nodelist *ndlp, 1671 void *arg, uint32_t evt) 1672 { 1673 struct lpfc_iocbq *cmdiocb; 1674 1675 cmdiocb = (struct lpfc_iocbq *) arg; 1676 1677 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1678 return ndlp->nlp_state; 1679 } 1680 1681 static uint32_t 1682 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1683 void *arg, uint32_t evt) 1684 { 1685 struct lpfc_iocbq *cmdiocb; 1686 1687 cmdiocb = (struct lpfc_iocbq *) arg; 1688 1689 /* Treat like rcv logo */ 1690 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1691 return ndlp->nlp_state; 1692 } 1693 1694 static uint32_t 1695 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1696 struct lpfc_nodelist *ndlp, 1697 void *arg, uint32_t evt) 1698 { 1699 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1700 struct lpfc_hba *phba = vport->phba; 1701 struct lpfc_iocbq *cmdiocb, *rspiocb; 1702 IOCB_t *irsp; 1703 ADISC *ap; 1704 int rc; 1705 1706 cmdiocb = (struct lpfc_iocbq *) arg; 1707 rspiocb = cmdiocb->context_un.rsp_iocb; 1708 1709 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1710 irsp = &rspiocb->iocb; 1711 1712 if ((irsp->ulpStatus) || 1713 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1714 /* 1 sec timeout */ 1715 mod_timer(&ndlp->nlp_delayfunc, 1716 jiffies + msecs_to_jiffies(1000)); 1717 spin_lock_irq(shost->host_lock); 1718 ndlp->nlp_flag |= NLP_DELAY_TMO; 1719 spin_unlock_irq(shost->host_lock); 1720 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1721 1722 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name)); 1723 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name)); 1724 1725 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1726 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1727 lpfc_unreg_rpi(vport, ndlp); 1728 return ndlp->nlp_state; 1729 } 1730 1731 if (phba->sli_rev == LPFC_SLI_REV4) { 1732 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1733 if (rc) { 1734 /* Stay in state and retry. */ 1735 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1736 return ndlp->nlp_state; 1737 } 1738 } 1739 1740 if (ndlp->nlp_type & NLP_FCP_TARGET) { 1741 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1742 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1743 } else { 1744 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1745 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1746 } 1747 1748 return ndlp->nlp_state; 1749 } 1750 1751 static uint32_t 1752 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1753 void *arg, uint32_t evt) 1754 { 1755 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1756 1757 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1758 spin_lock_irq(shost->host_lock); 1759 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1760 spin_unlock_irq(shost->host_lock); 1761 return ndlp->nlp_state; 1762 } else { 1763 /* software abort outstanding ADISC */ 1764 lpfc_els_abort(vport->phba, ndlp); 1765 1766 lpfc_drop_node(vport, ndlp); 1767 return NLP_STE_FREED_NODE; 1768 } 1769 } 1770 1771 static uint32_t 1772 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1773 struct lpfc_nodelist *ndlp, 1774 void *arg, 1775 uint32_t evt) 1776 { 1777 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1778 struct lpfc_hba *phba = vport->phba; 1779 1780 /* Don't do anything that will mess up processing of the 1781 * previous RSCN. 1782 */ 1783 if (vport->fc_flag & FC_RSCN_DEFERRED) 1784 return ndlp->nlp_state; 1785 1786 /* software abort outstanding ADISC */ 1787 lpfc_els_abort(phba, ndlp); 1788 1789 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1790 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1791 spin_lock_irq(shost->host_lock); 1792 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1793 spin_unlock_irq(shost->host_lock); 1794 lpfc_disc_set_adisc(vport, ndlp); 1795 return ndlp->nlp_state; 1796 } 1797 1798 static uint32_t 1799 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1800 struct lpfc_nodelist *ndlp, 1801 void *arg, 1802 uint32_t evt) 1803 { 1804 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1805 1806 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1807 return ndlp->nlp_state; 1808 } 1809 1810 static uint32_t 1811 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1812 struct lpfc_nodelist *ndlp, 1813 void *arg, 1814 uint32_t evt) 1815 { 1816 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1817 struct ls_rjt stat; 1818 1819 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1820 return ndlp->nlp_state; 1821 } 1822 if (vport->phba->nvmet_support) { 1823 /* NVME Target mode. Handle and respond to the PRLI and 1824 * transition to UNMAPPED provided the RPI has completed 1825 * registration. 1826 */ 1827 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 1828 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1829 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1830 } else { 1831 /* RPI registration has not completed. Reject the PRLI 1832 * to prevent an illegal state transition when the 1833 * rpi registration does complete. 1834 */ 1835 memset(&stat, 0, sizeof(struct ls_rjt)); 1836 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1837 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1838 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1839 ndlp, NULL); 1840 return ndlp->nlp_state; 1841 } 1842 } else { 1843 /* Initiator mode. */ 1844 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1845 } 1846 return ndlp->nlp_state; 1847 } 1848 1849 static uint32_t 1850 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1851 struct lpfc_nodelist *ndlp, 1852 void *arg, 1853 uint32_t evt) 1854 { 1855 struct lpfc_hba *phba = vport->phba; 1856 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1857 LPFC_MBOXQ_t *mb; 1858 LPFC_MBOXQ_t *nextmb; 1859 struct lpfc_dmabuf *mp; 1860 struct lpfc_nodelist *ns_ndlp; 1861 1862 cmdiocb = (struct lpfc_iocbq *) arg; 1863 1864 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1865 if ((mb = phba->sli.mbox_active)) { 1866 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1867 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1868 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1869 lpfc_nlp_put(ndlp); 1870 mb->ctx_ndlp = NULL; 1871 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1872 } 1873 } 1874 1875 spin_lock_irq(&phba->hbalock); 1876 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1877 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1878 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1879 mp = (struct lpfc_dmabuf *)(mb->ctx_buf); 1880 if (mp) { 1881 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 1882 kfree(mp); 1883 } 1884 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1885 lpfc_nlp_put(ndlp); 1886 list_del(&mb->list); 1887 phba->sli.mboxq_cnt--; 1888 mempool_free(mb, phba->mbox_mem_pool); 1889 } 1890 } 1891 spin_unlock_irq(&phba->hbalock); 1892 1893 /* software abort if any GID_FT is outstanding */ 1894 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 1895 ns_ndlp = lpfc_findnode_did(vport, NameServer_DID); 1896 if (ns_ndlp && NLP_CHK_NODE_ACT(ns_ndlp)) 1897 lpfc_els_abort(phba, ns_ndlp); 1898 } 1899 1900 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1901 return ndlp->nlp_state; 1902 } 1903 1904 static uint32_t 1905 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1906 struct lpfc_nodelist *ndlp, 1907 void *arg, 1908 uint32_t evt) 1909 { 1910 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1911 1912 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1913 return ndlp->nlp_state; 1914 } 1915 1916 static uint32_t 1917 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1918 struct lpfc_nodelist *ndlp, 1919 void *arg, 1920 uint32_t evt) 1921 { 1922 struct lpfc_iocbq *cmdiocb; 1923 1924 cmdiocb = (struct lpfc_iocbq *) arg; 1925 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1926 return ndlp->nlp_state; 1927 } 1928 1929 static uint32_t 1930 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1931 struct lpfc_nodelist *ndlp, 1932 void *arg, 1933 uint32_t evt) 1934 { 1935 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1936 struct lpfc_hba *phba = vport->phba; 1937 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1938 MAILBOX_t *mb = &pmb->u.mb; 1939 uint32_t did = mb->un.varWords[1]; 1940 1941 if (mb->mbxStatus) { 1942 /* RegLogin failed */ 1943 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1944 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1945 "x%x\n", 1946 did, mb->mbxStatus, vport->port_state, 1947 mb->un.varRegLogin.vpi, 1948 mb->un.varRegLogin.rpi); 1949 /* 1950 * If RegLogin failed due to lack of HBA resources do not 1951 * retry discovery. 1952 */ 1953 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1954 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1955 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1956 return ndlp->nlp_state; 1957 } 1958 1959 /* Put ndlp in npr state set plogi timer for 1 sec */ 1960 mod_timer(&ndlp->nlp_delayfunc, 1961 jiffies + msecs_to_jiffies(1000 * 1)); 1962 spin_lock_irq(shost->host_lock); 1963 ndlp->nlp_flag |= NLP_DELAY_TMO; 1964 spin_unlock_irq(shost->host_lock); 1965 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1966 1967 lpfc_issue_els_logo(vport, ndlp, 0); 1968 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1969 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1970 return ndlp->nlp_state; 1971 } 1972 1973 /* SLI4 ports have preallocated logical rpis. */ 1974 if (phba->sli_rev < LPFC_SLI_REV4) 1975 ndlp->nlp_rpi = mb->un.varWords[0]; 1976 1977 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1978 1979 /* Only if we are not a fabric nport do we issue PRLI */ 1980 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1981 "3066 RegLogin Complete on x%x x%x x%x\n", 1982 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 1983 if (!(ndlp->nlp_type & NLP_FABRIC) && 1984 (phba->nvmet_support == 0)) { 1985 /* The driver supports FCP and NVME concurrently. If the 1986 * ndlp's nlp_fc4_type is still zero, the driver doesn't 1987 * know what PRLI to send yet. Figure that out now and 1988 * call PRLI depending on the outcome. 1989 */ 1990 if (vport->fc_flag & FC_PT2PT) { 1991 /* If we are pt2pt, there is no Fabric to determine 1992 * the FC4 type of the remote nport. So if NVME 1993 * is configured try it. 1994 */ 1995 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1996 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 1997 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1998 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1999 /* We need to update the localport also */ 2000 lpfc_nvme_update_localport(vport); 2001 } 2002 2003 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2004 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 2005 2006 } else if (ndlp->nlp_fc4_type == 0) { 2007 /* If we are only configured for FCP, the driver 2008 * should just issue PRLI for FCP. Otherwise issue 2009 * GFT_ID to determine if remote port supports NVME. 2010 */ 2011 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 2012 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0, 2013 ndlp->nlp_DID); 2014 return ndlp->nlp_state; 2015 } 2016 ndlp->nlp_fc4_type = NLP_FC4_FCP; 2017 } 2018 2019 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2020 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 2021 if (lpfc_issue_els_prli(vport, ndlp, 0)) { 2022 lpfc_issue_els_logo(vport, ndlp, 0); 2023 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2024 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2025 } 2026 } else { 2027 if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support) 2028 phba->targetport->port_id = vport->fc_myDID; 2029 2030 /* Only Fabric ports should transition. NVME target 2031 * must complete PRLI. 2032 */ 2033 if (ndlp->nlp_type & NLP_FABRIC) { 2034 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2035 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2036 } 2037 } 2038 return ndlp->nlp_state; 2039 } 2040 2041 static uint32_t 2042 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 2043 struct lpfc_nodelist *ndlp, 2044 void *arg, 2045 uint32_t evt) 2046 { 2047 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2048 2049 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2050 spin_lock_irq(shost->host_lock); 2051 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2052 spin_unlock_irq(shost->host_lock); 2053 return ndlp->nlp_state; 2054 } else { 2055 lpfc_drop_node(vport, ndlp); 2056 return NLP_STE_FREED_NODE; 2057 } 2058 } 2059 2060 static uint32_t 2061 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 2062 struct lpfc_nodelist *ndlp, 2063 void *arg, 2064 uint32_t evt) 2065 { 2066 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2067 2068 /* Don't do anything that will mess up processing of the 2069 * previous RSCN. 2070 */ 2071 if (vport->fc_flag & FC_RSCN_DEFERRED) 2072 return ndlp->nlp_state; 2073 2074 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2075 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2076 spin_lock_irq(shost->host_lock); 2077 2078 /* If we are a target we won't immediately transition into PRLI, 2079 * so if REG_LOGIN already completed we don't need to ignore it. 2080 */ 2081 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) || 2082 !vport->phba->nvmet_support) 2083 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 2084 2085 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2086 spin_unlock_irq(shost->host_lock); 2087 lpfc_disc_set_adisc(vport, ndlp); 2088 return ndlp->nlp_state; 2089 } 2090 2091 static uint32_t 2092 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2093 void *arg, uint32_t evt) 2094 { 2095 struct lpfc_iocbq *cmdiocb; 2096 2097 cmdiocb = (struct lpfc_iocbq *) arg; 2098 2099 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2100 return ndlp->nlp_state; 2101 } 2102 2103 static uint32_t 2104 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2105 void *arg, uint32_t evt) 2106 { 2107 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2108 2109 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2110 return ndlp->nlp_state; 2111 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2112 return ndlp->nlp_state; 2113 } 2114 2115 static uint32_t 2116 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2117 void *arg, uint32_t evt) 2118 { 2119 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2120 2121 /* Software abort outstanding PRLI before sending acc */ 2122 lpfc_els_abort(vport->phba, ndlp); 2123 2124 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2125 return ndlp->nlp_state; 2126 } 2127 2128 static uint32_t 2129 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2130 void *arg, uint32_t evt) 2131 { 2132 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2133 2134 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2135 return ndlp->nlp_state; 2136 } 2137 2138 /* This routine is envoked when we rcv a PRLO request from a nport 2139 * we are logged into. We should send back a PRLO rsp setting the 2140 * appropriate bits. 2141 * NEXT STATE = PRLI_ISSUE 2142 */ 2143 static uint32_t 2144 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2145 void *arg, uint32_t evt) 2146 { 2147 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2148 2149 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2150 return ndlp->nlp_state; 2151 } 2152 2153 static uint32_t 2154 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2155 void *arg, uint32_t evt) 2156 { 2157 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2158 struct lpfc_iocbq *cmdiocb, *rspiocb; 2159 struct lpfc_hba *phba = vport->phba; 2160 IOCB_t *irsp; 2161 PRLI *npr; 2162 struct lpfc_nvme_prli *nvpr; 2163 void *temp_ptr; 2164 2165 cmdiocb = (struct lpfc_iocbq *) arg; 2166 rspiocb = cmdiocb->context_un.rsp_iocb; 2167 2168 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 2169 * format is different so NULL the two PRLI types so that the 2170 * driver correctly gets the correct context. 2171 */ 2172 npr = NULL; 2173 nvpr = NULL; 2174 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 2175 if (cmdiocb->iocb_flag & LPFC_PRLI_FCP_REQ) 2176 npr = (PRLI *) temp_ptr; 2177 else if (cmdiocb->iocb_flag & LPFC_PRLI_NVME_REQ) 2178 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 2179 2180 irsp = &rspiocb->iocb; 2181 if (irsp->ulpStatus) { 2182 if ((vport->port_type == LPFC_NPIV_PORT) && 2183 vport->cfg_restrict_login) { 2184 goto out; 2185 } 2186 2187 /* Adjust the nlp_type accordingly if the PRLI failed */ 2188 if (npr) 2189 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2190 if (nvpr) 2191 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 2192 2193 /* We can't set the DSM state till BOTH PRLIs complete */ 2194 goto out_err; 2195 } 2196 2197 if (npr && (npr->acceptRspCode == PRLI_REQ_EXECUTED) && 2198 (npr->prliType == PRLI_FCP_TYPE)) { 2199 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2200 "6028 FCP NPR PRLI Cmpl Init %d Target %d\n", 2201 npr->initiatorFunc, 2202 npr->targetFunc); 2203 if (npr->initiatorFunc) 2204 ndlp->nlp_type |= NLP_FCP_INITIATOR; 2205 if (npr->targetFunc) { 2206 ndlp->nlp_type |= NLP_FCP_TARGET; 2207 if (npr->writeXferRdyDis) 2208 ndlp->nlp_flag |= NLP_FIRSTBURST; 2209 } 2210 if (npr->Retry) 2211 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 2212 2213 } else if (nvpr && 2214 (bf_get_be32(prli_acc_rsp_code, nvpr) == 2215 PRLI_REQ_EXECUTED) && 2216 (bf_get_be32(prli_type_code, nvpr) == 2217 PRLI_NVME_TYPE)) { 2218 2219 /* Complete setting up the remote ndlp personality. */ 2220 if (bf_get_be32(prli_init, nvpr)) 2221 ndlp->nlp_type |= NLP_NVME_INITIATOR; 2222 2223 if (phba->nsler && bf_get_be32(prli_nsler, nvpr) && 2224 bf_get_be32(prli_conf, nvpr)) 2225 2226 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 2227 else 2228 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 2229 2230 /* Target driver cannot solicit NVME FB. */ 2231 if (bf_get_be32(prli_tgt, nvpr)) { 2232 /* Complete the nvme target roles. The transport 2233 * needs to know if the rport is capable of 2234 * discovery in addition to its role. 2235 */ 2236 ndlp->nlp_type |= NLP_NVME_TARGET; 2237 if (bf_get_be32(prli_disc, nvpr)) 2238 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 2239 2240 /* 2241 * If prli_fba is set, the Target supports FirstBurst. 2242 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 2243 * otherwise it defines the actual size supported by 2244 * the NVME Target. 2245 */ 2246 if ((bf_get_be32(prli_fba, nvpr) == 1) && 2247 (phba->cfg_nvme_enable_fb) && 2248 (!phba->nvmet_support)) { 2249 /* Both sides support FB. The target's first 2250 * burst size is a 512 byte encoded value. 2251 */ 2252 ndlp->nlp_flag |= NLP_FIRSTBURST; 2253 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2254 nvpr); 2255 2256 /* Expressed in units of 512 bytes */ 2257 if (ndlp->nvme_fb_size) 2258 ndlp->nvme_fb_size <<= 2259 LPFC_NVME_FB_SHIFT; 2260 else 2261 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2262 } 2263 } 2264 2265 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2266 "6029 NVME PRLI Cmpl w1 x%08x " 2267 "w4 x%08x w5 x%08x flag x%x, " 2268 "fcp_info x%x nlp_type x%x\n", 2269 be32_to_cpu(nvpr->word1), 2270 be32_to_cpu(nvpr->word4), 2271 be32_to_cpu(nvpr->word5), 2272 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2273 ndlp->nlp_type); 2274 } 2275 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2276 (vport->port_type == LPFC_NPIV_PORT) && 2277 vport->cfg_restrict_login) { 2278 out: 2279 spin_lock_irq(shost->host_lock); 2280 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 2281 spin_unlock_irq(shost->host_lock); 2282 lpfc_issue_els_logo(vport, ndlp, 0); 2283 2284 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2285 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2286 return ndlp->nlp_state; 2287 } 2288 2289 out_err: 2290 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2291 * are complete. 2292 */ 2293 if (ndlp->fc4_prli_sent == 0) { 2294 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2295 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2296 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2297 else if (ndlp->nlp_type & 2298 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2299 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2300 } else 2301 lpfc_printf_vlog(vport, 2302 KERN_INFO, LOG_ELS, 2303 "3067 PRLI's still outstanding " 2304 "on x%06x - count %d, Pend Node Mode " 2305 "transition...\n", 2306 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2307 2308 return ndlp->nlp_state; 2309 } 2310 2311 /*! lpfc_device_rm_prli_issue 2312 * 2313 * \pre 2314 * \post 2315 * \param phba 2316 * \param ndlp 2317 * \param arg 2318 * \param evt 2319 * \return uint32_t 2320 * 2321 * \b Description: 2322 * This routine is envoked when we a request to remove a nport we are in the 2323 * process of PRLIing. We should software abort outstanding prli, unreg 2324 * login, send a logout. We will change node state to UNUSED_NODE, put it 2325 * on plogi list so it can be freed when LOGO completes. 2326 * 2327 */ 2328 2329 static uint32_t 2330 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2331 void *arg, uint32_t evt) 2332 { 2333 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2334 2335 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2336 spin_lock_irq(shost->host_lock); 2337 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2338 spin_unlock_irq(shost->host_lock); 2339 return ndlp->nlp_state; 2340 } else { 2341 /* software abort outstanding PLOGI */ 2342 lpfc_els_abort(vport->phba, ndlp); 2343 2344 lpfc_drop_node(vport, ndlp); 2345 return NLP_STE_FREED_NODE; 2346 } 2347 } 2348 2349 2350 /*! lpfc_device_recov_prli_issue 2351 * 2352 * \pre 2353 * \post 2354 * \param phba 2355 * \param ndlp 2356 * \param arg 2357 * \param evt 2358 * \return uint32_t 2359 * 2360 * \b Description: 2361 * The routine is envoked when the state of a device is unknown, like 2362 * during a link down. We should remove the nodelist entry from the 2363 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2364 * outstanding PRLI command, then free the node entry. 2365 */ 2366 static uint32_t 2367 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2368 struct lpfc_nodelist *ndlp, 2369 void *arg, 2370 uint32_t evt) 2371 { 2372 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2373 struct lpfc_hba *phba = vport->phba; 2374 2375 /* Don't do anything that will mess up processing of the 2376 * previous RSCN. 2377 */ 2378 if (vport->fc_flag & FC_RSCN_DEFERRED) 2379 return ndlp->nlp_state; 2380 2381 /* software abort outstanding PRLI */ 2382 lpfc_els_abort(phba, ndlp); 2383 2384 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2385 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2386 spin_lock_irq(shost->host_lock); 2387 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2388 spin_unlock_irq(shost->host_lock); 2389 lpfc_disc_set_adisc(vport, ndlp); 2390 return ndlp->nlp_state; 2391 } 2392 2393 static uint32_t 2394 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2395 void *arg, uint32_t evt) 2396 { 2397 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2398 struct ls_rjt stat; 2399 2400 memset(&stat, 0, sizeof(struct ls_rjt)); 2401 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2402 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2403 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2404 return ndlp->nlp_state; 2405 } 2406 2407 static uint32_t 2408 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2409 void *arg, uint32_t evt) 2410 { 2411 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2412 struct ls_rjt stat; 2413 2414 memset(&stat, 0, sizeof(struct ls_rjt)); 2415 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2416 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2417 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2418 return ndlp->nlp_state; 2419 } 2420 2421 static uint32_t 2422 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2423 void *arg, uint32_t evt) 2424 { 2425 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2426 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2427 2428 spin_lock_irq(shost->host_lock); 2429 ndlp->nlp_flag |= NLP_LOGO_ACC; 2430 spin_unlock_irq(shost->host_lock); 2431 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2432 return ndlp->nlp_state; 2433 } 2434 2435 static uint32_t 2436 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2437 void *arg, uint32_t evt) 2438 { 2439 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2440 struct ls_rjt stat; 2441 2442 memset(&stat, 0, sizeof(struct ls_rjt)); 2443 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2444 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2445 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2446 return ndlp->nlp_state; 2447 } 2448 2449 static uint32_t 2450 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2451 void *arg, uint32_t evt) 2452 { 2453 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2454 struct ls_rjt stat; 2455 2456 memset(&stat, 0, sizeof(struct ls_rjt)); 2457 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2458 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2459 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2460 return ndlp->nlp_state; 2461 } 2462 2463 static uint32_t 2464 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2465 void *arg, uint32_t evt) 2466 { 2467 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2468 2469 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2470 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2471 spin_lock_irq(shost->host_lock); 2472 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2473 spin_unlock_irq(shost->host_lock); 2474 lpfc_disc_set_adisc(vport, ndlp); 2475 return ndlp->nlp_state; 2476 } 2477 2478 static uint32_t 2479 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2480 void *arg, uint32_t evt) 2481 { 2482 /* 2483 * DevLoss has timed out and is calling for Device Remove. 2484 * In this case, abort the LOGO and cleanup the ndlp 2485 */ 2486 2487 lpfc_unreg_rpi(vport, ndlp); 2488 /* software abort outstanding PLOGI */ 2489 lpfc_els_abort(vport->phba, ndlp); 2490 lpfc_drop_node(vport, ndlp); 2491 return NLP_STE_FREED_NODE; 2492 } 2493 2494 static uint32_t 2495 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2496 struct lpfc_nodelist *ndlp, 2497 void *arg, uint32_t evt) 2498 { 2499 /* 2500 * Device Recovery events have no meaning for a node with a LOGO 2501 * outstanding. The LOGO has to complete first and handle the 2502 * node from that point. 2503 */ 2504 return ndlp->nlp_state; 2505 } 2506 2507 static uint32_t 2508 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2509 void *arg, uint32_t evt) 2510 { 2511 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2512 2513 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2514 return ndlp->nlp_state; 2515 } 2516 2517 static uint32_t 2518 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2519 void *arg, uint32_t evt) 2520 { 2521 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2522 2523 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2524 return ndlp->nlp_state; 2525 2526 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2527 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2528 return ndlp->nlp_state; 2529 } 2530 2531 static uint32_t 2532 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2533 void *arg, uint32_t evt) 2534 { 2535 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2536 2537 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2538 return ndlp->nlp_state; 2539 } 2540 2541 static uint32_t 2542 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2543 void *arg, uint32_t evt) 2544 { 2545 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2546 2547 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2548 return ndlp->nlp_state; 2549 } 2550 2551 static uint32_t 2552 lpfc_rcv_prlo_unmap_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_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2558 return ndlp->nlp_state; 2559 } 2560 2561 static uint32_t 2562 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2563 struct lpfc_nodelist *ndlp, 2564 void *arg, 2565 uint32_t evt) 2566 { 2567 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2568 2569 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2570 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2571 spin_lock_irq(shost->host_lock); 2572 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2573 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2574 spin_unlock_irq(shost->host_lock); 2575 lpfc_disc_set_adisc(vport, ndlp); 2576 2577 return ndlp->nlp_state; 2578 } 2579 2580 static uint32_t 2581 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2582 void *arg, uint32_t evt) 2583 { 2584 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2585 2586 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2587 return ndlp->nlp_state; 2588 } 2589 2590 static uint32_t 2591 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2592 void *arg, uint32_t evt) 2593 { 2594 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2595 2596 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2597 return ndlp->nlp_state; 2598 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2599 return ndlp->nlp_state; 2600 } 2601 2602 static uint32_t 2603 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2604 void *arg, uint32_t evt) 2605 { 2606 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2607 2608 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2609 return ndlp->nlp_state; 2610 } 2611 2612 static uint32_t 2613 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2614 struct lpfc_nodelist *ndlp, 2615 void *arg, uint32_t evt) 2616 { 2617 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2618 2619 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2620 return ndlp->nlp_state; 2621 } 2622 2623 static uint32_t 2624 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2625 void *arg, uint32_t evt) 2626 { 2627 struct lpfc_hba *phba = vport->phba; 2628 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2629 2630 /* flush the target */ 2631 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], 2632 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2633 2634 /* Treat like rcv logo */ 2635 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2636 return ndlp->nlp_state; 2637 } 2638 2639 static uint32_t 2640 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2641 struct lpfc_nodelist *ndlp, 2642 void *arg, 2643 uint32_t evt) 2644 { 2645 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2646 2647 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2648 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2649 spin_lock_irq(shost->host_lock); 2650 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2651 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2652 spin_unlock_irq(shost->host_lock); 2653 lpfc_disc_set_adisc(vport, ndlp); 2654 return ndlp->nlp_state; 2655 } 2656 2657 static uint32_t 2658 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2659 void *arg, uint32_t evt) 2660 { 2661 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2662 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2663 2664 /* Ignore PLOGI if we have an outstanding LOGO */ 2665 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2666 return ndlp->nlp_state; 2667 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2668 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2669 spin_lock_irq(shost->host_lock); 2670 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2671 spin_unlock_irq(shost->host_lock); 2672 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2673 /* send PLOGI immediately, move to PLOGI issue state */ 2674 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2675 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2676 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2677 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2678 } 2679 } 2680 return ndlp->nlp_state; 2681 } 2682 2683 static uint32_t 2684 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2685 void *arg, uint32_t evt) 2686 { 2687 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2688 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2689 struct ls_rjt stat; 2690 2691 memset(&stat, 0, sizeof (struct ls_rjt)); 2692 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2693 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2694 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2695 2696 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2697 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2698 spin_lock_irq(shost->host_lock); 2699 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2700 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2701 spin_unlock_irq(shost->host_lock); 2702 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2703 lpfc_issue_els_adisc(vport, ndlp, 0); 2704 } else { 2705 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2706 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2707 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2708 } 2709 } 2710 return ndlp->nlp_state; 2711 } 2712 2713 static uint32_t 2714 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2715 void *arg, uint32_t evt) 2716 { 2717 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2718 2719 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2720 return ndlp->nlp_state; 2721 } 2722 2723 static uint32_t 2724 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2725 void *arg, uint32_t evt) 2726 { 2727 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2728 2729 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2730 /* 2731 * Do not start discovery if discovery is about to start 2732 * or discovery in progress for this node. Starting discovery 2733 * here will affect the counting of discovery threads. 2734 */ 2735 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2736 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2737 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2738 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2739 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2740 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2741 lpfc_issue_els_adisc(vport, ndlp, 0); 2742 } else { 2743 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2744 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2745 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2746 } 2747 } 2748 return ndlp->nlp_state; 2749 } 2750 2751 static uint32_t 2752 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2753 void *arg, uint32_t evt) 2754 { 2755 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2756 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2757 2758 spin_lock_irq(shost->host_lock); 2759 ndlp->nlp_flag |= NLP_LOGO_ACC; 2760 spin_unlock_irq(shost->host_lock); 2761 2762 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2763 2764 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2765 mod_timer(&ndlp->nlp_delayfunc, 2766 jiffies + msecs_to_jiffies(1000 * 1)); 2767 spin_lock_irq(shost->host_lock); 2768 ndlp->nlp_flag |= NLP_DELAY_TMO; 2769 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2770 spin_unlock_irq(shost->host_lock); 2771 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2772 } else { 2773 spin_lock_irq(shost->host_lock); 2774 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2775 spin_unlock_irq(shost->host_lock); 2776 } 2777 return ndlp->nlp_state; 2778 } 2779 2780 static uint32_t 2781 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2782 void *arg, uint32_t evt) 2783 { 2784 struct lpfc_iocbq *cmdiocb, *rspiocb; 2785 IOCB_t *irsp; 2786 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2787 2788 cmdiocb = (struct lpfc_iocbq *) arg; 2789 rspiocb = cmdiocb->context_un.rsp_iocb; 2790 2791 irsp = &rspiocb->iocb; 2792 if (irsp->ulpStatus) { 2793 spin_lock_irq(shost->host_lock); 2794 ndlp->nlp_flag |= NLP_DEFER_RM; 2795 spin_unlock_irq(shost->host_lock); 2796 return NLP_STE_FREED_NODE; 2797 } 2798 return ndlp->nlp_state; 2799 } 2800 2801 static uint32_t 2802 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2803 void *arg, uint32_t evt) 2804 { 2805 struct lpfc_iocbq *cmdiocb, *rspiocb; 2806 IOCB_t *irsp; 2807 2808 cmdiocb = (struct lpfc_iocbq *) arg; 2809 rspiocb = cmdiocb->context_un.rsp_iocb; 2810 2811 irsp = &rspiocb->iocb; 2812 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2813 lpfc_drop_node(vport, ndlp); 2814 return NLP_STE_FREED_NODE; 2815 } 2816 return ndlp->nlp_state; 2817 } 2818 2819 static uint32_t 2820 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2821 void *arg, uint32_t evt) 2822 { 2823 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2824 2825 /* For the fabric port just clear the fc flags. */ 2826 if (ndlp->nlp_DID == Fabric_DID) { 2827 spin_lock_irq(shost->host_lock); 2828 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2829 spin_unlock_irq(shost->host_lock); 2830 } 2831 lpfc_unreg_rpi(vport, ndlp); 2832 return ndlp->nlp_state; 2833 } 2834 2835 static uint32_t 2836 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2837 void *arg, uint32_t evt) 2838 { 2839 struct lpfc_iocbq *cmdiocb, *rspiocb; 2840 IOCB_t *irsp; 2841 2842 cmdiocb = (struct lpfc_iocbq *) arg; 2843 rspiocb = cmdiocb->context_un.rsp_iocb; 2844 2845 irsp = &rspiocb->iocb; 2846 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2847 lpfc_drop_node(vport, ndlp); 2848 return NLP_STE_FREED_NODE; 2849 } 2850 return ndlp->nlp_state; 2851 } 2852 2853 static uint32_t 2854 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2855 struct lpfc_nodelist *ndlp, 2856 void *arg, uint32_t evt) 2857 { 2858 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2859 MAILBOX_t *mb = &pmb->u.mb; 2860 2861 if (!mb->mbxStatus) { 2862 /* SLI4 ports have preallocated logical rpis. */ 2863 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2864 ndlp->nlp_rpi = mb->un.varWords[0]; 2865 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2866 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 2867 lpfc_unreg_rpi(vport, ndlp); 2868 } 2869 } else { 2870 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2871 lpfc_drop_node(vport, ndlp); 2872 return NLP_STE_FREED_NODE; 2873 } 2874 } 2875 return ndlp->nlp_state; 2876 } 2877 2878 static uint32_t 2879 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2880 void *arg, uint32_t evt) 2881 { 2882 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2883 2884 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2885 spin_lock_irq(shost->host_lock); 2886 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2887 spin_unlock_irq(shost->host_lock); 2888 return ndlp->nlp_state; 2889 } 2890 lpfc_drop_node(vport, ndlp); 2891 return NLP_STE_FREED_NODE; 2892 } 2893 2894 static uint32_t 2895 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2896 void *arg, uint32_t evt) 2897 { 2898 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2899 2900 /* Don't do anything that will mess up processing of the 2901 * previous RSCN. 2902 */ 2903 if (vport->fc_flag & FC_RSCN_DEFERRED) 2904 return ndlp->nlp_state; 2905 2906 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2907 spin_lock_irq(shost->host_lock); 2908 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2909 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2910 spin_unlock_irq(shost->host_lock); 2911 return ndlp->nlp_state; 2912 } 2913 2914 2915 /* This next section defines the NPort Discovery State Machine */ 2916 2917 /* There are 4 different double linked lists nodelist entries can reside on. 2918 * The plogi list and adisc list are used when Link Up discovery or RSCN 2919 * processing is needed. Each list holds the nodes that we will send PLOGI 2920 * or ADISC on. These lists will keep track of what nodes will be effected 2921 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2922 * The unmapped_list will contain all nodes that we have successfully logged 2923 * into at the Fibre Channel level. The mapped_list will contain all nodes 2924 * that are mapped FCP targets. 2925 */ 2926 /* 2927 * The bind list is a list of undiscovered (potentially non-existent) nodes 2928 * that we have saved binding information on. This information is used when 2929 * nodes transition from the unmapped to the mapped list. 2930 */ 2931 /* For UNUSED_NODE state, the node has just been allocated . 2932 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2933 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2934 * and put on the unmapped list. For ADISC processing, the node is taken off 2935 * the ADISC list and placed on either the mapped or unmapped list (depending 2936 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2937 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2938 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2939 * node, the node is taken off the unmapped list. The binding list is checked 2940 * for a valid binding, or a binding is automatically assigned. If binding 2941 * assignment is unsuccessful, the node is left on the unmapped list. If 2942 * binding assignment is successful, the associated binding list entry (if 2943 * any) is removed, and the node is placed on the mapped list. 2944 */ 2945 /* 2946 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2947 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2948 * expire, all effected nodes will receive a DEVICE_RM event. 2949 */ 2950 /* 2951 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2952 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2953 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2954 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2955 * we will first process the ADISC list. 32 entries are processed initially and 2956 * ADISC is initited for each one. Completions / Events for each node are 2957 * funnelled thru the state machine. As each node finishes ADISC processing, it 2958 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2959 * waiting, and the ADISC list count is identically 0, then we are done. For 2960 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2961 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2962 * list. 32 entries are processed initially and PLOGI is initited for each one. 2963 * Completions / Events for each node are funnelled thru the state machine. As 2964 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2965 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2966 * indentically 0, then we are done. We have now completed discovery / RSCN 2967 * handling. Upon completion, ALL nodes should be on either the mapped or 2968 * unmapped lists. 2969 */ 2970 2971 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2972 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2973 /* Action routine Event Current State */ 2974 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2975 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2976 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2977 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2978 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2979 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2980 lpfc_disc_illegal, /* CMPL_PLOGI */ 2981 lpfc_disc_illegal, /* CMPL_PRLI */ 2982 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2983 lpfc_disc_illegal, /* CMPL_ADISC */ 2984 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2985 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2986 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2987 2988 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2989 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2990 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2991 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2992 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2993 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2994 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2995 lpfc_disc_illegal, /* CMPL_PRLI */ 2996 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2997 lpfc_disc_illegal, /* CMPL_ADISC */ 2998 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2999 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 3000 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 3001 3002 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 3003 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 3004 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 3005 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 3006 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 3007 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 3008 lpfc_disc_illegal, /* CMPL_PLOGI */ 3009 lpfc_disc_illegal, /* CMPL_PRLI */ 3010 lpfc_disc_illegal, /* CMPL_LOGO */ 3011 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 3012 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3013 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 3014 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 3015 3016 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 3017 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 3018 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 3019 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 3020 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 3021 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 3022 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3023 lpfc_disc_illegal, /* CMPL_PRLI */ 3024 lpfc_disc_illegal, /* CMPL_LOGO */ 3025 lpfc_disc_illegal, /* CMPL_ADISC */ 3026 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 3027 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 3028 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 3029 3030 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 3031 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 3032 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 3033 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 3034 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 3035 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 3036 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3037 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 3038 lpfc_disc_illegal, /* CMPL_LOGO */ 3039 lpfc_disc_illegal, /* CMPL_ADISC */ 3040 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3041 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 3042 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 3043 3044 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 3045 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 3046 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 3047 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 3048 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 3049 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 3050 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3051 lpfc_disc_illegal, /* CMPL_PRLI */ 3052 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 3053 lpfc_disc_illegal, /* CMPL_ADISC */ 3054 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3055 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 3056 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 3057 3058 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 3059 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 3060 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 3061 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 3062 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 3063 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 3064 lpfc_disc_illegal, /* CMPL_PLOGI */ 3065 lpfc_disc_illegal, /* CMPL_PRLI */ 3066 lpfc_disc_illegal, /* CMPL_LOGO */ 3067 lpfc_disc_illegal, /* CMPL_ADISC */ 3068 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3069 lpfc_disc_illegal, /* DEVICE_RM */ 3070 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 3071 3072 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 3073 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 3074 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 3075 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 3076 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 3077 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 3078 lpfc_disc_illegal, /* CMPL_PLOGI */ 3079 lpfc_disc_illegal, /* CMPL_PRLI */ 3080 lpfc_disc_illegal, /* CMPL_LOGO */ 3081 lpfc_disc_illegal, /* CMPL_ADISC */ 3082 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3083 lpfc_disc_illegal, /* DEVICE_RM */ 3084 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 3085 3086 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 3087 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 3088 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 3089 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 3090 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 3091 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 3092 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 3093 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 3094 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 3095 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 3096 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 3097 lpfc_device_rm_npr_node, /* DEVICE_RM */ 3098 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 3099 }; 3100 3101 int 3102 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3103 void *arg, uint32_t evt) 3104 { 3105 uint32_t cur_state, rc; 3106 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 3107 uint32_t); 3108 uint32_t got_ndlp = 0; 3109 uint32_t data1; 3110 3111 if (lpfc_nlp_get(ndlp)) 3112 got_ndlp = 1; 3113 3114 cur_state = ndlp->nlp_state; 3115 3116 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3117 ((uint32_t)ndlp->nlp_type)); 3118 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 3119 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3120 "0211 DSM in event x%x on NPort x%x in " 3121 "state %d rpi x%x Data: x%x x%x\n", 3122 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, 3123 ndlp->nlp_flag, data1); 3124 3125 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3126 "DSM in: evt:%d ste:%d did:x%x", 3127 evt, cur_state, ndlp->nlp_DID); 3128 3129 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 3130 rc = (func) (vport, ndlp, arg, evt); 3131 3132 /* DSM out state <rc> on NPort <nlp_DID> */ 3133 if (got_ndlp) { 3134 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3135 ((uint32_t)ndlp->nlp_type)); 3136 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3137 "0212 DSM out state %d on NPort x%x " 3138 "rpi x%x Data: x%x x%x\n", 3139 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag, 3140 data1); 3141 3142 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3143 "DSM out: ste:%d did:x%x flg:x%x", 3144 rc, ndlp->nlp_DID, ndlp->nlp_flag); 3145 /* Decrement the ndlp reference count held for this function */ 3146 lpfc_nlp_put(ndlp); 3147 } else { 3148 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3149 "0213 DSM out state %d on NPort free\n", rc); 3150 3151 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3152 "DSM out: ste:%d did:x%x flg:x%x", 3153 rc, 0, 0); 3154 } 3155 3156 return rc; 3157 } 3158