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_TRACE_EVENT, 156 "0207 Device %x " 157 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 158 "invalid service parameters. Ignoring device.\n", 159 ndlp->nlp_DID, 160 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 161 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 162 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 163 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 164 return 0; 165 } 166 167 static void * 168 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 169 struct lpfc_iocbq *rspiocb) 170 { 171 struct lpfc_dmabuf *pcmd, *prsp; 172 uint32_t *lp; 173 void *ptr = NULL; 174 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_TRACE_EVENT, 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_TRACE_EVENT, 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_TRACE_EVENT, 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_TRACE_EVENT, 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_TRACE_EVENT, 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_TRACE_EVENT, 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 fallthrough; 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_TRACE_EVENT, 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_TRACE_EVENT, 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 * It is possible an ADISC arrived and the remote nport 802 * is already in MAPPED or UNMAPPED state. Catch this 803 * condition and don't set the nlp_state again because 804 * it causes an unnecessary transport unregister/register. 805 */ 806 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 807 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) 808 lpfc_nlp_set_state(vport, ndlp, 809 NLP_STE_MAPPED_NODE); 810 } 811 812 return 1; 813 } 814 /* Reject this request because invalid parameters */ 815 stat.un.b.lsRjtRsvd0 = 0; 816 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 817 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 818 stat.un.b.vendorUnique = 0; 819 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 820 821 /* 1 sec timeout */ 822 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 823 824 spin_lock_irq(shost->host_lock); 825 ndlp->nlp_flag |= NLP_DELAY_TMO; 826 spin_unlock_irq(shost->host_lock); 827 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 828 ndlp->nlp_prev_state = ndlp->nlp_state; 829 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 830 return 0; 831 } 832 833 static int 834 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 835 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 836 { 837 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 838 struct lpfc_hba *phba = vport->phba; 839 struct lpfc_vport **vports; 840 int i, active_vlink_present = 0 ; 841 842 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 843 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 844 * PLOGIs during LOGO storms from a device. 845 */ 846 spin_lock_irq(shost->host_lock); 847 ndlp->nlp_flag |= NLP_LOGO_ACC; 848 spin_unlock_irq(shost->host_lock); 849 if (els_cmd == ELS_CMD_PRLO) 850 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 851 else 852 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 853 854 /* Notify transport of connectivity loss to trigger cleanup. */ 855 if (phba->nvmet_support && 856 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 857 lpfc_nvmet_invalidate_host(phba, ndlp); 858 859 if (ndlp->nlp_DID == Fabric_DID) { 860 if (vport->port_state <= LPFC_FDISC) 861 goto out; 862 lpfc_linkdown_port(vport); 863 spin_lock_irq(shost->host_lock); 864 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 865 spin_unlock_irq(shost->host_lock); 866 vports = lpfc_create_vport_work_array(phba); 867 if (vports) { 868 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 869 i++) { 870 if ((!(vports[i]->fc_flag & 871 FC_VPORT_LOGO_RCVD)) && 872 (vports[i]->port_state > LPFC_FDISC)) { 873 active_vlink_present = 1; 874 break; 875 } 876 } 877 lpfc_destroy_vport_work_array(phba, vports); 878 } 879 880 /* 881 * Don't re-instantiate if vport is marked for deletion. 882 * If we are here first then vport_delete is going to wait 883 * for discovery to complete. 884 */ 885 if (!(vport->load_flag & FC_UNLOADING) && 886 active_vlink_present) { 887 /* 888 * If there are other active VLinks present, 889 * re-instantiate the Vlink using FDISC. 890 */ 891 mod_timer(&ndlp->nlp_delayfunc, 892 jiffies + msecs_to_jiffies(1000)); 893 spin_lock_irq(shost->host_lock); 894 ndlp->nlp_flag |= NLP_DELAY_TMO; 895 spin_unlock_irq(shost->host_lock); 896 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 897 vport->port_state = LPFC_FDISC; 898 } else { 899 spin_lock_irq(shost->host_lock); 900 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 901 spin_unlock_irq(shost->host_lock); 902 lpfc_retry_pport_discovery(phba); 903 } 904 } else if ((!(ndlp->nlp_type & NLP_FABRIC) && 905 ((ndlp->nlp_type & NLP_FCP_TARGET) || 906 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) || 907 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { 908 /* Only try to re-login if this is NOT a Fabric Node */ 909 mod_timer(&ndlp->nlp_delayfunc, 910 jiffies + msecs_to_jiffies(1000 * 1)); 911 spin_lock_irq(shost->host_lock); 912 ndlp->nlp_flag |= NLP_DELAY_TMO; 913 spin_unlock_irq(shost->host_lock); 914 915 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 916 } 917 out: 918 ndlp->nlp_prev_state = ndlp->nlp_state; 919 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 920 921 spin_lock_irq(shost->host_lock); 922 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 923 spin_unlock_irq(shost->host_lock); 924 /* The driver has to wait until the ACC completes before it continues 925 * processing the LOGO. The action will resume in 926 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 927 * unreg_login, the driver waits so the ACC does not get aborted. 928 */ 929 return 0; 930 } 931 932 static uint32_t 933 lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 934 struct lpfc_nodelist *ndlp, 935 struct lpfc_iocbq *cmdiocb) 936 { 937 struct ls_rjt stat; 938 uint32_t *payload; 939 uint32_t cmd; 940 941 payload = ((struct lpfc_dmabuf *)cmdiocb->context2)->virt; 942 cmd = *payload; 943 if (vport->phba->nvmet_support) { 944 /* Must be a NVME PRLI */ 945 if (cmd == ELS_CMD_PRLI) 946 goto out; 947 } else { 948 /* Initiator mode. */ 949 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 950 goto out; 951 } 952 return 1; 953 out: 954 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC, 955 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 956 "state x%x flags x%x\n", 957 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 958 ndlp->nlp_flag); 959 memset(&stat, 0, sizeof(struct ls_rjt)); 960 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 961 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 962 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 963 ndlp, NULL); 964 return 0; 965 } 966 967 static void 968 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 969 struct lpfc_iocbq *cmdiocb) 970 { 971 struct lpfc_hba *phba = vport->phba; 972 struct lpfc_dmabuf *pcmd; 973 uint32_t *lp; 974 PRLI *npr; 975 struct fc_rport *rport = ndlp->rport; 976 u32 roles; 977 978 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 979 lp = (uint32_t *) pcmd->virt; 980 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t)); 981 982 if ((npr->prliType == PRLI_FCP_TYPE) || 983 (npr->prliType == PRLI_NVME_TYPE)) { 984 if (npr->initiatorFunc) { 985 if (npr->prliType == PRLI_FCP_TYPE) 986 ndlp->nlp_type |= NLP_FCP_INITIATOR; 987 if (npr->prliType == PRLI_NVME_TYPE) 988 ndlp->nlp_type |= NLP_NVME_INITIATOR; 989 } 990 if (npr->targetFunc) { 991 if (npr->prliType == PRLI_FCP_TYPE) 992 ndlp->nlp_type |= NLP_FCP_TARGET; 993 if (npr->prliType == PRLI_NVME_TYPE) 994 ndlp->nlp_type |= NLP_NVME_TARGET; 995 if (npr->writeXferRdyDis) 996 ndlp->nlp_flag |= NLP_FIRSTBURST; 997 } 998 if (npr->Retry && ndlp->nlp_type & 999 (NLP_FCP_INITIATOR | NLP_FCP_TARGET)) 1000 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 1001 1002 if (npr->Retry && phba->nsler && 1003 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET)) 1004 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 1005 1006 1007 /* If this driver is in nvme target mode, set the ndlp's fc4 1008 * type to NVME provided the PRLI response claims NVME FC4 1009 * type. Target mode does not issue gft_id so doesn't get 1010 * the fc4 type set until now. 1011 */ 1012 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 1013 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1014 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1015 } 1016 if (npr->prliType == PRLI_FCP_TYPE) 1017 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1018 } 1019 if (rport) { 1020 /* We need to update the rport role values */ 1021 roles = FC_RPORT_ROLE_UNKNOWN; 1022 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 1023 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 1024 if (ndlp->nlp_type & NLP_FCP_TARGET) 1025 roles |= FC_RPORT_ROLE_FCP_TARGET; 1026 1027 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 1028 "rport rolechg: role:x%x did:x%x flg:x%x", 1029 roles, ndlp->nlp_DID, ndlp->nlp_flag); 1030 1031 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1032 fc_remote_port_rolechg(rport, roles); 1033 } 1034 } 1035 1036 static uint32_t 1037 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 1038 { 1039 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1040 1041 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 1042 spin_lock_irq(shost->host_lock); 1043 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1044 spin_unlock_irq(shost->host_lock); 1045 return 0; 1046 } 1047 1048 if (!(vport->fc_flag & FC_PT2PT)) { 1049 /* Check config parameter use-adisc or FCP-2 */ 1050 if (vport->cfg_use_adisc && ((vport->fc_flag & FC_RSCN_MODE) || 1051 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 1052 (ndlp->nlp_type & NLP_FCP_TARGET)))) { 1053 spin_lock_irq(shost->host_lock); 1054 ndlp->nlp_flag |= NLP_NPR_ADISC; 1055 spin_unlock_irq(shost->host_lock); 1056 return 1; 1057 } 1058 } 1059 1060 spin_lock_irq(shost->host_lock); 1061 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1062 spin_unlock_irq(shost->host_lock); 1063 lpfc_unreg_rpi(vport, ndlp); 1064 return 0; 1065 } 1066 1067 /** 1068 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 1069 * @phba : Pointer to lpfc_hba structure. 1070 * @vport: Pointer to lpfc_vport structure. 1071 * @ndlp: Pointer to lpfc_nodelist structure. 1072 * @rpi : rpi to be release. 1073 * 1074 * This function will send a unreg_login mailbox command to the firmware 1075 * to release a rpi. 1076 **/ 1077 static void 1078 lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, 1079 struct lpfc_nodelist *ndlp, uint16_t rpi) 1080 { 1081 LPFC_MBOXQ_t *pmb; 1082 int rc; 1083 1084 /* If there is already an UNREG in progress for this ndlp, 1085 * no need to queue up another one. 1086 */ 1087 if (ndlp->nlp_flag & NLP_UNREG_INP) { 1088 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1089 "1435 release_rpi SKIP UNREG x%x on " 1090 "NPort x%x deferred x%x flg x%x " 1091 "Data: x%px\n", 1092 ndlp->nlp_rpi, ndlp->nlp_DID, 1093 ndlp->nlp_defer_did, 1094 ndlp->nlp_flag, ndlp); 1095 return; 1096 } 1097 1098 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 1099 GFP_KERNEL); 1100 if (!pmb) 1101 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1102 "2796 mailbox memory allocation failed \n"); 1103 else { 1104 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 1105 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1106 pmb->vport = vport; 1107 pmb->ctx_ndlp = ndlp; 1108 1109 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 1110 (!(vport->fc_flag & FC_OFFLINE_MODE))) 1111 ndlp->nlp_flag |= NLP_UNREG_INP; 1112 1113 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1114 "1437 release_rpi UNREG x%x " 1115 "on NPort x%x flg x%x\n", 1116 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); 1117 1118 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 1119 if (rc == MBX_NOT_FINISHED) 1120 mempool_free(pmb, phba->mbox_mem_pool); 1121 } 1122 } 1123 1124 static uint32_t 1125 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1126 void *arg, uint32_t evt) 1127 { 1128 struct lpfc_hba *phba; 1129 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1130 uint16_t rpi; 1131 1132 phba = vport->phba; 1133 /* Release the RPI if reglogin completing */ 1134 if (!(phba->pport->load_flag & FC_UNLOADING) && 1135 (evt == NLP_EVT_CMPL_REG_LOGIN) && 1136 (!pmb->u.mb.mbxStatus)) { 1137 rpi = pmb->u.mb.un.varWords[0]; 1138 lpfc_release_rpi(phba, vport, ndlp, rpi); 1139 } 1140 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1141 "0271 Illegal State Transition: node x%x " 1142 "event x%x, state x%x Data: x%x x%x\n", 1143 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1144 ndlp->nlp_flag); 1145 return ndlp->nlp_state; 1146 } 1147 1148 static uint32_t 1149 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1150 void *arg, uint32_t evt) 1151 { 1152 /* This transition is only legal if we previously 1153 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 1154 * working on the same NPortID, do nothing for this thread 1155 * to stop it. 1156 */ 1157 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 1158 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1159 "0272 Illegal State Transition: node x%x " 1160 "event x%x, state x%x Data: x%x x%x\n", 1161 ndlp->nlp_DID, evt, ndlp->nlp_state, 1162 ndlp->nlp_rpi, ndlp->nlp_flag); 1163 } 1164 return ndlp->nlp_state; 1165 } 1166 1167 /* Start of Discovery State Machine routines */ 1168 1169 static uint32_t 1170 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1171 void *arg, uint32_t evt) 1172 { 1173 struct lpfc_iocbq *cmdiocb; 1174 1175 cmdiocb = (struct lpfc_iocbq *) arg; 1176 1177 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1178 return ndlp->nlp_state; 1179 } 1180 return NLP_STE_FREED_NODE; 1181 } 1182 1183 static uint32_t 1184 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1185 void *arg, uint32_t evt) 1186 { 1187 lpfc_issue_els_logo(vport, ndlp, 0); 1188 return ndlp->nlp_state; 1189 } 1190 1191 static uint32_t 1192 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1193 void *arg, uint32_t evt) 1194 { 1195 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1196 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1197 1198 spin_lock_irq(shost->host_lock); 1199 ndlp->nlp_flag |= NLP_LOGO_ACC; 1200 spin_unlock_irq(shost->host_lock); 1201 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1202 1203 return ndlp->nlp_state; 1204 } 1205 1206 static uint32_t 1207 lpfc_cmpl_logo_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_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1215 void *arg, uint32_t evt) 1216 { 1217 return NLP_STE_FREED_NODE; 1218 } 1219 1220 static uint32_t 1221 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 1222 struct lpfc_nodelist *ndlp, 1223 void *arg, uint32_t evt) 1224 { 1225 return ndlp->nlp_state; 1226 } 1227 1228 static uint32_t 1229 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1230 void *arg, uint32_t evt) 1231 { 1232 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1233 struct lpfc_hba *phba = vport->phba; 1234 struct lpfc_iocbq *cmdiocb = arg; 1235 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1236 uint32_t *lp = (uint32_t *) pcmd->virt; 1237 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1238 struct ls_rjt stat; 1239 int port_cmp; 1240 1241 memset(&stat, 0, sizeof (struct ls_rjt)); 1242 1243 /* For a PLOGI, we only accept if our portname is less 1244 * than the remote portname. 1245 */ 1246 phba->fc_stat.elsLogiCol++; 1247 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1248 sizeof(struct lpfc_name)); 1249 1250 if (port_cmp >= 0) { 1251 /* Reject this request because the remote node will accept 1252 ours */ 1253 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1254 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1255 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1256 NULL); 1257 } else { 1258 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1259 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 1260 (vport->num_disc_nodes)) { 1261 spin_lock_irq(shost->host_lock); 1262 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1263 spin_unlock_irq(shost->host_lock); 1264 /* Check if there are more PLOGIs to be sent */ 1265 lpfc_more_plogi(vport); 1266 if (vport->num_disc_nodes == 0) { 1267 spin_lock_irq(shost->host_lock); 1268 vport->fc_flag &= ~FC_NDISC_ACTIVE; 1269 spin_unlock_irq(shost->host_lock); 1270 lpfc_can_disctmo(vport); 1271 lpfc_end_rscn(vport); 1272 } 1273 } 1274 } /* If our portname was less */ 1275 1276 return ndlp->nlp_state; 1277 } 1278 1279 static uint32_t 1280 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1281 void *arg, uint32_t evt) 1282 { 1283 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1284 struct ls_rjt stat; 1285 1286 memset(&stat, 0, sizeof (struct ls_rjt)); 1287 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1288 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1289 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1290 return ndlp->nlp_state; 1291 } 1292 1293 static uint32_t 1294 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1295 void *arg, uint32_t evt) 1296 { 1297 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1298 1299 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1300 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1301 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1302 /* software abort outstanding PLOGI */ 1303 lpfc_els_abort(vport->phba, ndlp); 1304 1305 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1306 return ndlp->nlp_state; 1307 } 1308 1309 static uint32_t 1310 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1311 void *arg, uint32_t evt) 1312 { 1313 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1314 struct lpfc_hba *phba = vport->phba; 1315 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1316 1317 /* software abort outstanding PLOGI */ 1318 lpfc_els_abort(phba, ndlp); 1319 1320 if (evt == NLP_EVT_RCV_LOGO) { 1321 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1322 } else { 1323 lpfc_issue_els_logo(vport, ndlp, 0); 1324 } 1325 1326 /* Put ndlp in npr state set plogi timer for 1 sec */ 1327 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1328 spin_lock_irq(shost->host_lock); 1329 ndlp->nlp_flag |= NLP_DELAY_TMO; 1330 spin_unlock_irq(shost->host_lock); 1331 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1332 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1333 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1334 1335 return ndlp->nlp_state; 1336 } 1337 1338 static uint32_t 1339 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1340 struct lpfc_nodelist *ndlp, 1341 void *arg, 1342 uint32_t evt) 1343 { 1344 struct lpfc_hba *phba = vport->phba; 1345 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1346 struct lpfc_iocbq *cmdiocb, *rspiocb; 1347 struct lpfc_dmabuf *pcmd, *prsp, *mp; 1348 uint32_t *lp; 1349 uint32_t vid, flag; 1350 IOCB_t *irsp; 1351 struct serv_parm *sp; 1352 uint32_t ed_tov; 1353 LPFC_MBOXQ_t *mbox; 1354 int rc; 1355 1356 cmdiocb = (struct lpfc_iocbq *) arg; 1357 rspiocb = cmdiocb->context_un.rsp_iocb; 1358 1359 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1360 /* Recovery from PLOGI collision logic */ 1361 return ndlp->nlp_state; 1362 } 1363 1364 irsp = &rspiocb->iocb; 1365 1366 if (irsp->ulpStatus) 1367 goto out; 1368 1369 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1370 1371 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1372 if (!prsp) 1373 goto out; 1374 1375 lp = (uint32_t *) prsp->virt; 1376 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1377 1378 /* Some switches have FDMI servers returning 0 for WWN */ 1379 if ((ndlp->nlp_DID != FDMI_DID) && 1380 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1381 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1382 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1383 "0142 PLOGI RSP: Invalid WWN.\n"); 1384 goto out; 1385 } 1386 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1387 goto out; 1388 /* PLOGI chkparm OK */ 1389 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1390 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1391 ndlp->nlp_DID, ndlp->nlp_state, 1392 ndlp->nlp_flag, ndlp->nlp_rpi); 1393 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1394 ndlp->nlp_fcp_info |= CLASS2; 1395 else 1396 ndlp->nlp_fcp_info |= CLASS3; 1397 1398 ndlp->nlp_class_sup = 0; 1399 if (sp->cls1.classValid) 1400 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1401 if (sp->cls2.classValid) 1402 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1403 if (sp->cls3.classValid) 1404 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1405 if (sp->cls4.classValid) 1406 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1407 ndlp->nlp_maxframe = 1408 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1409 1410 if ((vport->fc_flag & FC_PT2PT) && 1411 (vport->fc_flag & FC_PT2PT_PLOGI)) { 1412 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1413 if (sp->cmn.edtovResolution) { 1414 /* E_D_TOV ticks are in nanoseconds */ 1415 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1416 } 1417 1418 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 1419 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1420 sp->cmn.valid_vendor_ver_level) { 1421 vid = be32_to_cpu(sp->un.vv.vid); 1422 flag = be32_to_cpu(sp->un.vv.flags); 1423 if ((vid == LPFC_VV_EMLX_ID) && 1424 (flag & LPFC_VV_SUPPRESS_RSP)) 1425 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 1426 } 1427 1428 /* 1429 * Use the larger EDTOV 1430 * RATOV = 2 * EDTOV for pt-to-pt 1431 */ 1432 if (ed_tov > phba->fc_edtov) 1433 phba->fc_edtov = ed_tov; 1434 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1435 1436 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1437 1438 /* Issue config_link / reg_vfi to account for updated TOV's */ 1439 if (phba->sli_rev == LPFC_SLI_REV4) { 1440 lpfc_issue_reg_vfi(vport); 1441 } else { 1442 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1443 if (!mbox) { 1444 lpfc_printf_vlog(vport, KERN_ERR, 1445 LOG_TRACE_EVENT, 1446 "0133 PLOGI: no memory " 1447 "for config_link " 1448 "Data: x%x x%x x%x x%x\n", 1449 ndlp->nlp_DID, ndlp->nlp_state, 1450 ndlp->nlp_flag, ndlp->nlp_rpi); 1451 goto out; 1452 } 1453 1454 lpfc_config_link(phba, mbox); 1455 1456 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1457 mbox->vport = vport; 1458 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1459 if (rc == MBX_NOT_FINISHED) { 1460 mempool_free(mbox, phba->mbox_mem_pool); 1461 goto out; 1462 } 1463 } 1464 } 1465 1466 lpfc_unreg_rpi(vport, ndlp); 1467 1468 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1469 if (!mbox) { 1470 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1471 "0018 PLOGI: no memory for reg_login " 1472 "Data: x%x x%x x%x x%x\n", 1473 ndlp->nlp_DID, ndlp->nlp_state, 1474 ndlp->nlp_flag, ndlp->nlp_rpi); 1475 goto out; 1476 } 1477 1478 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID, 1479 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1480 switch (ndlp->nlp_DID) { 1481 case NameServer_DID: 1482 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1483 break; 1484 case FDMI_DID: 1485 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1486 break; 1487 default: 1488 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1489 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1490 } 1491 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1492 mbox->vport = vport; 1493 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1494 != MBX_NOT_FINISHED) { 1495 lpfc_nlp_set_state(vport, ndlp, 1496 NLP_STE_REG_LOGIN_ISSUE); 1497 return ndlp->nlp_state; 1498 } 1499 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1500 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1501 /* decrement node reference count to the failed mbox 1502 * command 1503 */ 1504 lpfc_nlp_put(ndlp); 1505 mp = (struct lpfc_dmabuf *)mbox->ctx_buf; 1506 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1507 kfree(mp); 1508 mempool_free(mbox, phba->mbox_mem_pool); 1509 1510 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1511 "0134 PLOGI: cannot issue 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 } else { 1516 mempool_free(mbox, phba->mbox_mem_pool); 1517 1518 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1519 "0135 PLOGI: cannot format reg_login " 1520 "Data: x%x x%x x%x x%x\n", 1521 ndlp->nlp_DID, ndlp->nlp_state, 1522 ndlp->nlp_flag, ndlp->nlp_rpi); 1523 } 1524 1525 1526 out: 1527 if (ndlp->nlp_DID == NameServer_DID) { 1528 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1529 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1530 "0261 Cannot Register NameServer login\n"); 1531 } 1532 1533 /* 1534 ** In case the node reference counter does not go to zero, ensure that 1535 ** the stale state for the node is not processed. 1536 */ 1537 1538 ndlp->nlp_prev_state = ndlp->nlp_state; 1539 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1540 spin_lock_irq(shost->host_lock); 1541 ndlp->nlp_flag |= NLP_DEFER_RM; 1542 spin_unlock_irq(shost->host_lock); 1543 return NLP_STE_FREED_NODE; 1544 } 1545 1546 static uint32_t 1547 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1548 void *arg, uint32_t evt) 1549 { 1550 return ndlp->nlp_state; 1551 } 1552 1553 static uint32_t 1554 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1555 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1556 { 1557 struct lpfc_hba *phba; 1558 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1559 MAILBOX_t *mb = &pmb->u.mb; 1560 uint16_t rpi; 1561 1562 phba = vport->phba; 1563 /* Release the RPI */ 1564 if (!(phba->pport->load_flag & FC_UNLOADING) && 1565 !mb->mbxStatus) { 1566 rpi = pmb->u.mb.un.varWords[0]; 1567 lpfc_release_rpi(phba, vport, ndlp, rpi); 1568 } 1569 return ndlp->nlp_state; 1570 } 1571 1572 static uint32_t 1573 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1574 void *arg, uint32_t evt) 1575 { 1576 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1577 1578 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1579 spin_lock_irq(shost->host_lock); 1580 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1581 spin_unlock_irq(shost->host_lock); 1582 return ndlp->nlp_state; 1583 } else { 1584 /* software abort outstanding PLOGI */ 1585 lpfc_els_abort(vport->phba, ndlp); 1586 1587 lpfc_drop_node(vport, ndlp); 1588 return NLP_STE_FREED_NODE; 1589 } 1590 } 1591 1592 static uint32_t 1593 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1594 struct lpfc_nodelist *ndlp, 1595 void *arg, 1596 uint32_t evt) 1597 { 1598 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1599 struct lpfc_hba *phba = vport->phba; 1600 1601 /* Don't do anything that will mess up processing of the 1602 * previous RSCN. 1603 */ 1604 if (vport->fc_flag & FC_RSCN_DEFERRED) 1605 return ndlp->nlp_state; 1606 1607 /* software abort outstanding PLOGI */ 1608 lpfc_els_abort(phba, ndlp); 1609 1610 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1611 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1612 spin_lock_irq(shost->host_lock); 1613 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1614 spin_unlock_irq(shost->host_lock); 1615 1616 return ndlp->nlp_state; 1617 } 1618 1619 static uint32_t 1620 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1621 void *arg, uint32_t evt) 1622 { 1623 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1624 struct lpfc_hba *phba = vport->phba; 1625 struct lpfc_iocbq *cmdiocb; 1626 1627 /* software abort outstanding ADISC */ 1628 lpfc_els_abort(phba, ndlp); 1629 1630 cmdiocb = (struct lpfc_iocbq *) arg; 1631 1632 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1633 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1634 spin_lock_irq(shost->host_lock); 1635 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1636 spin_unlock_irq(shost->host_lock); 1637 if (vport->num_disc_nodes) 1638 lpfc_more_adisc(vport); 1639 } 1640 return ndlp->nlp_state; 1641 } 1642 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1643 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1644 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1645 1646 return ndlp->nlp_state; 1647 } 1648 1649 static uint32_t 1650 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1651 void *arg, uint32_t evt) 1652 { 1653 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1654 1655 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1656 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1657 return ndlp->nlp_state; 1658 } 1659 1660 static uint32_t 1661 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1662 void *arg, uint32_t evt) 1663 { 1664 struct lpfc_hba *phba = vport->phba; 1665 struct lpfc_iocbq *cmdiocb; 1666 1667 cmdiocb = (struct lpfc_iocbq *) arg; 1668 1669 /* software abort outstanding ADISC */ 1670 lpfc_els_abort(phba, ndlp); 1671 1672 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1673 return ndlp->nlp_state; 1674 } 1675 1676 static uint32_t 1677 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1678 struct lpfc_nodelist *ndlp, 1679 void *arg, uint32_t evt) 1680 { 1681 struct lpfc_iocbq *cmdiocb; 1682 1683 cmdiocb = (struct lpfc_iocbq *) arg; 1684 1685 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1686 return ndlp->nlp_state; 1687 } 1688 1689 static uint32_t 1690 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1691 void *arg, uint32_t evt) 1692 { 1693 struct lpfc_iocbq *cmdiocb; 1694 1695 cmdiocb = (struct lpfc_iocbq *) arg; 1696 1697 /* Treat like rcv logo */ 1698 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1699 return ndlp->nlp_state; 1700 } 1701 1702 static uint32_t 1703 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1704 struct lpfc_nodelist *ndlp, 1705 void *arg, uint32_t evt) 1706 { 1707 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1708 struct lpfc_hba *phba = vport->phba; 1709 struct lpfc_iocbq *cmdiocb, *rspiocb; 1710 IOCB_t *irsp; 1711 ADISC *ap; 1712 int rc; 1713 1714 cmdiocb = (struct lpfc_iocbq *) arg; 1715 rspiocb = cmdiocb->context_un.rsp_iocb; 1716 1717 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1718 irsp = &rspiocb->iocb; 1719 1720 if ((irsp->ulpStatus) || 1721 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1722 /* 1 sec timeout */ 1723 mod_timer(&ndlp->nlp_delayfunc, 1724 jiffies + msecs_to_jiffies(1000)); 1725 spin_lock_irq(shost->host_lock); 1726 ndlp->nlp_flag |= NLP_DELAY_TMO; 1727 spin_unlock_irq(shost->host_lock); 1728 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1729 1730 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name)); 1731 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name)); 1732 1733 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1734 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1735 lpfc_unreg_rpi(vport, ndlp); 1736 return ndlp->nlp_state; 1737 } 1738 1739 if (phba->sli_rev == LPFC_SLI_REV4) { 1740 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1741 if (rc) { 1742 /* Stay in state and retry. */ 1743 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1744 return ndlp->nlp_state; 1745 } 1746 } 1747 1748 if (ndlp->nlp_type & NLP_FCP_TARGET) 1749 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1750 1751 if (ndlp->nlp_type & NLP_NVME_TARGET) 1752 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1753 1754 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 1755 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1756 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1757 } else { 1758 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1759 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1760 } 1761 1762 return ndlp->nlp_state; 1763 } 1764 1765 static uint32_t 1766 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1767 void *arg, uint32_t evt) 1768 { 1769 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1770 1771 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1772 spin_lock_irq(shost->host_lock); 1773 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1774 spin_unlock_irq(shost->host_lock); 1775 return ndlp->nlp_state; 1776 } else { 1777 /* software abort outstanding ADISC */ 1778 lpfc_els_abort(vport->phba, ndlp); 1779 1780 lpfc_drop_node(vport, ndlp); 1781 return NLP_STE_FREED_NODE; 1782 } 1783 } 1784 1785 static uint32_t 1786 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1787 struct lpfc_nodelist *ndlp, 1788 void *arg, 1789 uint32_t evt) 1790 { 1791 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1792 struct lpfc_hba *phba = vport->phba; 1793 1794 /* Don't do anything that will mess up processing of the 1795 * previous RSCN. 1796 */ 1797 if (vport->fc_flag & FC_RSCN_DEFERRED) 1798 return ndlp->nlp_state; 1799 1800 /* software abort outstanding ADISC */ 1801 lpfc_els_abort(phba, ndlp); 1802 1803 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1804 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1805 spin_lock_irq(shost->host_lock); 1806 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1807 spin_unlock_irq(shost->host_lock); 1808 lpfc_disc_set_adisc(vport, ndlp); 1809 return ndlp->nlp_state; 1810 } 1811 1812 static uint32_t 1813 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1814 struct lpfc_nodelist *ndlp, 1815 void *arg, 1816 uint32_t evt) 1817 { 1818 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1819 1820 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1821 return ndlp->nlp_state; 1822 } 1823 1824 static uint32_t 1825 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1826 struct lpfc_nodelist *ndlp, 1827 void *arg, 1828 uint32_t evt) 1829 { 1830 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1831 struct ls_rjt stat; 1832 1833 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1834 return ndlp->nlp_state; 1835 } 1836 if (vport->phba->nvmet_support) { 1837 /* NVME Target mode. Handle and respond to the PRLI and 1838 * transition to UNMAPPED provided the RPI has completed 1839 * registration. 1840 */ 1841 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 1842 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1843 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1844 } else { 1845 /* RPI registration has not completed. Reject the PRLI 1846 * to prevent an illegal state transition when the 1847 * rpi registration does complete. 1848 */ 1849 memset(&stat, 0, sizeof(struct ls_rjt)); 1850 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1851 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1852 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1853 ndlp, NULL); 1854 return ndlp->nlp_state; 1855 } 1856 } else { 1857 /* Initiator mode. */ 1858 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1859 } 1860 return ndlp->nlp_state; 1861 } 1862 1863 static uint32_t 1864 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1865 struct lpfc_nodelist *ndlp, 1866 void *arg, 1867 uint32_t evt) 1868 { 1869 struct lpfc_hba *phba = vport->phba; 1870 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1871 LPFC_MBOXQ_t *mb; 1872 LPFC_MBOXQ_t *nextmb; 1873 struct lpfc_dmabuf *mp; 1874 struct lpfc_nodelist *ns_ndlp; 1875 1876 cmdiocb = (struct lpfc_iocbq *) arg; 1877 1878 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1879 if ((mb = phba->sli.mbox_active)) { 1880 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1881 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1882 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1883 lpfc_nlp_put(ndlp); 1884 mb->ctx_ndlp = NULL; 1885 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1886 } 1887 } 1888 1889 spin_lock_irq(&phba->hbalock); 1890 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1891 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1892 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1893 mp = (struct lpfc_dmabuf *)(mb->ctx_buf); 1894 if (mp) { 1895 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 1896 kfree(mp); 1897 } 1898 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1899 lpfc_nlp_put(ndlp); 1900 list_del(&mb->list); 1901 phba->sli.mboxq_cnt--; 1902 mempool_free(mb, phba->mbox_mem_pool); 1903 } 1904 } 1905 spin_unlock_irq(&phba->hbalock); 1906 1907 /* software abort if any GID_FT is outstanding */ 1908 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 1909 ns_ndlp = lpfc_findnode_did(vport, NameServer_DID); 1910 if (ns_ndlp && NLP_CHK_NODE_ACT(ns_ndlp)) 1911 lpfc_els_abort(phba, ns_ndlp); 1912 } 1913 1914 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1915 return ndlp->nlp_state; 1916 } 1917 1918 static uint32_t 1919 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1920 struct lpfc_nodelist *ndlp, 1921 void *arg, 1922 uint32_t evt) 1923 { 1924 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1925 1926 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1927 return ndlp->nlp_state; 1928 } 1929 1930 static uint32_t 1931 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1932 struct lpfc_nodelist *ndlp, 1933 void *arg, 1934 uint32_t evt) 1935 { 1936 struct lpfc_iocbq *cmdiocb; 1937 1938 cmdiocb = (struct lpfc_iocbq *) arg; 1939 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1940 return ndlp->nlp_state; 1941 } 1942 1943 static uint32_t 1944 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1945 struct lpfc_nodelist *ndlp, 1946 void *arg, 1947 uint32_t evt) 1948 { 1949 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1950 struct lpfc_hba *phba = vport->phba; 1951 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1952 MAILBOX_t *mb = &pmb->u.mb; 1953 uint32_t did = mb->un.varWords[1]; 1954 1955 if (mb->mbxStatus) { 1956 /* RegLogin failed */ 1957 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1958 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1959 "x%x\n", 1960 did, mb->mbxStatus, vport->port_state, 1961 mb->un.varRegLogin.vpi, 1962 mb->un.varRegLogin.rpi); 1963 /* 1964 * If RegLogin failed due to lack of HBA resources do not 1965 * retry discovery. 1966 */ 1967 if (mb->mbxStatus == MBXERR_RPI_FULL) { 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 /* Put ndlp in npr state set plogi timer for 1 sec */ 1974 mod_timer(&ndlp->nlp_delayfunc, 1975 jiffies + msecs_to_jiffies(1000 * 1)); 1976 spin_lock_irq(shost->host_lock); 1977 ndlp->nlp_flag |= NLP_DELAY_TMO; 1978 spin_unlock_irq(shost->host_lock); 1979 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1980 1981 lpfc_issue_els_logo(vport, ndlp, 0); 1982 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1983 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1984 return ndlp->nlp_state; 1985 } 1986 1987 /* SLI4 ports have preallocated logical rpis. */ 1988 if (phba->sli_rev < LPFC_SLI_REV4) 1989 ndlp->nlp_rpi = mb->un.varWords[0]; 1990 1991 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1992 1993 /* Only if we are not a fabric nport do we issue PRLI */ 1994 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1995 "3066 RegLogin Complete on x%x x%x x%x\n", 1996 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 1997 if (!(ndlp->nlp_type & NLP_FABRIC) && 1998 (phba->nvmet_support == 0)) { 1999 /* The driver supports FCP and NVME concurrently. If the 2000 * ndlp's nlp_fc4_type is still zero, the driver doesn't 2001 * know what PRLI to send yet. Figure that out now and 2002 * call PRLI depending on the outcome. 2003 */ 2004 if (vport->fc_flag & FC_PT2PT) { 2005 /* If we are pt2pt, there is no Fabric to determine 2006 * the FC4 type of the remote nport. So if NVME 2007 * is configured try it. 2008 */ 2009 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 2010 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 2011 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 2012 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 2013 /* We need to update the localport also */ 2014 lpfc_nvme_update_localport(vport); 2015 } 2016 2017 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2018 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 2019 2020 } else if (ndlp->nlp_fc4_type == 0) { 2021 /* If we are only configured for FCP, the driver 2022 * should just issue PRLI for FCP. Otherwise issue 2023 * GFT_ID to determine if remote port supports NVME. 2024 */ 2025 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 2026 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0, 2027 ndlp->nlp_DID); 2028 return ndlp->nlp_state; 2029 } 2030 ndlp->nlp_fc4_type = NLP_FC4_FCP; 2031 } 2032 2033 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2034 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 2035 if (lpfc_issue_els_prli(vport, ndlp, 0)) { 2036 lpfc_issue_els_logo(vport, ndlp, 0); 2037 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2038 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2039 } 2040 } else { 2041 if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support) 2042 phba->targetport->port_id = vport->fc_myDID; 2043 2044 /* Only Fabric ports should transition. NVME target 2045 * must complete PRLI. 2046 */ 2047 if (ndlp->nlp_type & NLP_FABRIC) { 2048 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2049 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2050 } 2051 } 2052 return ndlp->nlp_state; 2053 } 2054 2055 static uint32_t 2056 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 2057 struct lpfc_nodelist *ndlp, 2058 void *arg, 2059 uint32_t evt) 2060 { 2061 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2062 2063 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2064 spin_lock_irq(shost->host_lock); 2065 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2066 spin_unlock_irq(shost->host_lock); 2067 return ndlp->nlp_state; 2068 } else { 2069 lpfc_drop_node(vport, ndlp); 2070 return NLP_STE_FREED_NODE; 2071 } 2072 } 2073 2074 static uint32_t 2075 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 2076 struct lpfc_nodelist *ndlp, 2077 void *arg, 2078 uint32_t evt) 2079 { 2080 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2081 2082 /* Don't do anything that will mess up processing of the 2083 * previous RSCN. 2084 */ 2085 if (vport->fc_flag & FC_RSCN_DEFERRED) 2086 return ndlp->nlp_state; 2087 2088 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2089 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2090 spin_lock_irq(shost->host_lock); 2091 2092 /* If we are a target we won't immediately transition into PRLI, 2093 * so if REG_LOGIN already completed we don't need to ignore it. 2094 */ 2095 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) || 2096 !vport->phba->nvmet_support) 2097 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 2098 2099 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2100 spin_unlock_irq(shost->host_lock); 2101 lpfc_disc_set_adisc(vport, ndlp); 2102 return ndlp->nlp_state; 2103 } 2104 2105 static uint32_t 2106 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2107 void *arg, uint32_t evt) 2108 { 2109 struct lpfc_iocbq *cmdiocb; 2110 2111 cmdiocb = (struct lpfc_iocbq *) arg; 2112 2113 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2114 return ndlp->nlp_state; 2115 } 2116 2117 static uint32_t 2118 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2119 void *arg, uint32_t evt) 2120 { 2121 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2122 2123 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2124 return ndlp->nlp_state; 2125 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2126 return ndlp->nlp_state; 2127 } 2128 2129 static uint32_t 2130 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2131 void *arg, uint32_t evt) 2132 { 2133 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2134 2135 /* Software abort outstanding PRLI before sending acc */ 2136 lpfc_els_abort(vport->phba, ndlp); 2137 2138 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2139 return ndlp->nlp_state; 2140 } 2141 2142 static uint32_t 2143 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2144 void *arg, uint32_t evt) 2145 { 2146 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2147 2148 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2149 return ndlp->nlp_state; 2150 } 2151 2152 /* This routine is envoked when we rcv a PRLO request from a nport 2153 * we are logged into. We should send back a PRLO rsp setting the 2154 * appropriate bits. 2155 * NEXT STATE = PRLI_ISSUE 2156 */ 2157 static uint32_t 2158 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2159 void *arg, uint32_t evt) 2160 { 2161 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2162 2163 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2164 return ndlp->nlp_state; 2165 } 2166 2167 static uint32_t 2168 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2169 void *arg, uint32_t evt) 2170 { 2171 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2172 struct lpfc_iocbq *cmdiocb, *rspiocb; 2173 struct lpfc_hba *phba = vport->phba; 2174 IOCB_t *irsp; 2175 PRLI *npr; 2176 struct lpfc_nvme_prli *nvpr; 2177 void *temp_ptr; 2178 2179 cmdiocb = (struct lpfc_iocbq *) arg; 2180 rspiocb = cmdiocb->context_un.rsp_iocb; 2181 2182 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 2183 * format is different so NULL the two PRLI types so that the 2184 * driver correctly gets the correct context. 2185 */ 2186 npr = NULL; 2187 nvpr = NULL; 2188 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 2189 if (cmdiocb->iocb_flag & LPFC_PRLI_FCP_REQ) 2190 npr = (PRLI *) temp_ptr; 2191 else if (cmdiocb->iocb_flag & LPFC_PRLI_NVME_REQ) 2192 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 2193 2194 irsp = &rspiocb->iocb; 2195 if (irsp->ulpStatus) { 2196 if ((vport->port_type == LPFC_NPIV_PORT) && 2197 vport->cfg_restrict_login) { 2198 goto out; 2199 } 2200 2201 /* Adjust the nlp_type accordingly if the PRLI failed */ 2202 if (npr) 2203 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2204 if (nvpr) 2205 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 2206 2207 /* We can't set the DSM state till BOTH PRLIs complete */ 2208 goto out_err; 2209 } 2210 2211 if (npr && (npr->acceptRspCode == PRLI_REQ_EXECUTED) && 2212 (npr->prliType == PRLI_FCP_TYPE)) { 2213 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2214 "6028 FCP NPR PRLI Cmpl Init %d Target %d\n", 2215 npr->initiatorFunc, 2216 npr->targetFunc); 2217 if (npr->initiatorFunc) 2218 ndlp->nlp_type |= NLP_FCP_INITIATOR; 2219 if (npr->targetFunc) { 2220 ndlp->nlp_type |= NLP_FCP_TARGET; 2221 if (npr->writeXferRdyDis) 2222 ndlp->nlp_flag |= NLP_FIRSTBURST; 2223 } 2224 if (npr->Retry) 2225 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 2226 2227 } else if (nvpr && 2228 (bf_get_be32(prli_acc_rsp_code, nvpr) == 2229 PRLI_REQ_EXECUTED) && 2230 (bf_get_be32(prli_type_code, nvpr) == 2231 PRLI_NVME_TYPE)) { 2232 2233 /* Complete setting up the remote ndlp personality. */ 2234 if (bf_get_be32(prli_init, nvpr)) 2235 ndlp->nlp_type |= NLP_NVME_INITIATOR; 2236 2237 if (phba->nsler && bf_get_be32(prli_nsler, nvpr) && 2238 bf_get_be32(prli_conf, nvpr)) 2239 2240 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 2241 else 2242 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 2243 2244 /* Target driver cannot solicit NVME FB. */ 2245 if (bf_get_be32(prli_tgt, nvpr)) { 2246 /* Complete the nvme target roles. The transport 2247 * needs to know if the rport is capable of 2248 * discovery in addition to its role. 2249 */ 2250 ndlp->nlp_type |= NLP_NVME_TARGET; 2251 if (bf_get_be32(prli_disc, nvpr)) 2252 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 2253 2254 /* 2255 * If prli_fba is set, the Target supports FirstBurst. 2256 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 2257 * otherwise it defines the actual size supported by 2258 * the NVME Target. 2259 */ 2260 if ((bf_get_be32(prli_fba, nvpr) == 1) && 2261 (phba->cfg_nvme_enable_fb) && 2262 (!phba->nvmet_support)) { 2263 /* Both sides support FB. The target's first 2264 * burst size is a 512 byte encoded value. 2265 */ 2266 ndlp->nlp_flag |= NLP_FIRSTBURST; 2267 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2268 nvpr); 2269 2270 /* Expressed in units of 512 bytes */ 2271 if (ndlp->nvme_fb_size) 2272 ndlp->nvme_fb_size <<= 2273 LPFC_NVME_FB_SHIFT; 2274 else 2275 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2276 } 2277 } 2278 2279 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2280 "6029 NVME PRLI Cmpl w1 x%08x " 2281 "w4 x%08x w5 x%08x flag x%x, " 2282 "fcp_info x%x nlp_type x%x\n", 2283 be32_to_cpu(nvpr->word1), 2284 be32_to_cpu(nvpr->word4), 2285 be32_to_cpu(nvpr->word5), 2286 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2287 ndlp->nlp_type); 2288 } 2289 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2290 (vport->port_type == LPFC_NPIV_PORT) && 2291 vport->cfg_restrict_login) { 2292 out: 2293 spin_lock_irq(shost->host_lock); 2294 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 2295 spin_unlock_irq(shost->host_lock); 2296 lpfc_issue_els_logo(vport, ndlp, 0); 2297 2298 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2299 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2300 return ndlp->nlp_state; 2301 } 2302 2303 out_err: 2304 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2305 * are complete. 2306 */ 2307 if (ndlp->fc4_prli_sent == 0) { 2308 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2309 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2310 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2311 else if (ndlp->nlp_type & 2312 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2313 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2314 } else 2315 lpfc_printf_vlog(vport, 2316 KERN_INFO, LOG_ELS, 2317 "3067 PRLI's still outstanding " 2318 "on x%06x - count %d, Pend Node Mode " 2319 "transition...\n", 2320 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2321 2322 return ndlp->nlp_state; 2323 } 2324 2325 /*! lpfc_device_rm_prli_issue 2326 * 2327 * \pre 2328 * \post 2329 * \param phba 2330 * \param ndlp 2331 * \param arg 2332 * \param evt 2333 * \return uint32_t 2334 * 2335 * \b Description: 2336 * This routine is envoked when we a request to remove a nport we are in the 2337 * process of PRLIing. We should software abort outstanding prli, unreg 2338 * login, send a logout. We will change node state to UNUSED_NODE, put it 2339 * on plogi list so it can be freed when LOGO completes. 2340 * 2341 */ 2342 2343 static uint32_t 2344 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2345 void *arg, uint32_t evt) 2346 { 2347 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2348 2349 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2350 spin_lock_irq(shost->host_lock); 2351 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2352 spin_unlock_irq(shost->host_lock); 2353 return ndlp->nlp_state; 2354 } else { 2355 /* software abort outstanding PLOGI */ 2356 lpfc_els_abort(vport->phba, ndlp); 2357 2358 lpfc_drop_node(vport, ndlp); 2359 return NLP_STE_FREED_NODE; 2360 } 2361 } 2362 2363 2364 /*! lpfc_device_recov_prli_issue 2365 * 2366 * \pre 2367 * \post 2368 * \param phba 2369 * \param ndlp 2370 * \param arg 2371 * \param evt 2372 * \return uint32_t 2373 * 2374 * \b Description: 2375 * The routine is envoked when the state of a device is unknown, like 2376 * during a link down. We should remove the nodelist entry from the 2377 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2378 * outstanding PRLI command, then free the node entry. 2379 */ 2380 static uint32_t 2381 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2382 struct lpfc_nodelist *ndlp, 2383 void *arg, 2384 uint32_t evt) 2385 { 2386 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2387 struct lpfc_hba *phba = vport->phba; 2388 2389 /* Don't do anything that will mess up processing of the 2390 * previous RSCN. 2391 */ 2392 if (vport->fc_flag & FC_RSCN_DEFERRED) 2393 return ndlp->nlp_state; 2394 2395 /* software abort outstanding PRLI */ 2396 lpfc_els_abort(phba, ndlp); 2397 2398 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2399 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2400 spin_lock_irq(shost->host_lock); 2401 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2402 spin_unlock_irq(shost->host_lock); 2403 lpfc_disc_set_adisc(vport, ndlp); 2404 return ndlp->nlp_state; 2405 } 2406 2407 static uint32_t 2408 lpfc_rcv_plogi_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_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2423 void *arg, uint32_t evt) 2424 { 2425 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2426 struct ls_rjt stat; 2427 2428 memset(&stat, 0, sizeof(struct ls_rjt)); 2429 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2430 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2431 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2432 return ndlp->nlp_state; 2433 } 2434 2435 static uint32_t 2436 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2437 void *arg, uint32_t evt) 2438 { 2439 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2440 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2441 2442 spin_lock_irq(shost->host_lock); 2443 ndlp->nlp_flag |= NLP_LOGO_ACC; 2444 spin_unlock_irq(shost->host_lock); 2445 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2446 return ndlp->nlp_state; 2447 } 2448 2449 static uint32_t 2450 lpfc_rcv_padisc_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_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2465 void *arg, uint32_t evt) 2466 { 2467 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2468 struct ls_rjt stat; 2469 2470 memset(&stat, 0, sizeof(struct ls_rjt)); 2471 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2472 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2473 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2474 return ndlp->nlp_state; 2475 } 2476 2477 static uint32_t 2478 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2479 void *arg, uint32_t evt) 2480 { 2481 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2482 2483 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2484 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2485 spin_lock_irq(shost->host_lock); 2486 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2487 spin_unlock_irq(shost->host_lock); 2488 lpfc_disc_set_adisc(vport, ndlp); 2489 return ndlp->nlp_state; 2490 } 2491 2492 static uint32_t 2493 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2494 void *arg, uint32_t evt) 2495 { 2496 /* 2497 * DevLoss has timed out and is calling for Device Remove. 2498 * In this case, abort the LOGO and cleanup the ndlp 2499 */ 2500 2501 lpfc_unreg_rpi(vport, ndlp); 2502 /* software abort outstanding PLOGI */ 2503 lpfc_els_abort(vport->phba, ndlp); 2504 lpfc_drop_node(vport, ndlp); 2505 return NLP_STE_FREED_NODE; 2506 } 2507 2508 static uint32_t 2509 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2510 struct lpfc_nodelist *ndlp, 2511 void *arg, uint32_t evt) 2512 { 2513 /* 2514 * Device Recovery events have no meaning for a node with a LOGO 2515 * outstanding. The LOGO has to complete first and handle the 2516 * node from that point. 2517 */ 2518 return ndlp->nlp_state; 2519 } 2520 2521 static uint32_t 2522 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2523 void *arg, uint32_t evt) 2524 { 2525 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2526 2527 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2528 return ndlp->nlp_state; 2529 } 2530 2531 static uint32_t 2532 lpfc_rcv_prli_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 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2538 return ndlp->nlp_state; 2539 2540 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2541 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2542 return ndlp->nlp_state; 2543 } 2544 2545 static uint32_t 2546 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2547 void *arg, uint32_t evt) 2548 { 2549 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2550 2551 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2552 return ndlp->nlp_state; 2553 } 2554 2555 static uint32_t 2556 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2557 void *arg, uint32_t evt) 2558 { 2559 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2560 2561 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2562 return ndlp->nlp_state; 2563 } 2564 2565 static uint32_t 2566 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2567 void *arg, uint32_t evt) 2568 { 2569 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2570 2571 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2572 return ndlp->nlp_state; 2573 } 2574 2575 static uint32_t 2576 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2577 struct lpfc_nodelist *ndlp, 2578 void *arg, 2579 uint32_t evt) 2580 { 2581 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2582 2583 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2584 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2585 spin_lock_irq(shost->host_lock); 2586 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2587 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2588 spin_unlock_irq(shost->host_lock); 2589 lpfc_disc_set_adisc(vport, ndlp); 2590 2591 return ndlp->nlp_state; 2592 } 2593 2594 static uint32_t 2595 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2596 void *arg, uint32_t evt) 2597 { 2598 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2599 2600 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2601 return ndlp->nlp_state; 2602 } 2603 2604 static uint32_t 2605 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2606 void *arg, uint32_t evt) 2607 { 2608 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2609 2610 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2611 return ndlp->nlp_state; 2612 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2613 return ndlp->nlp_state; 2614 } 2615 2616 static uint32_t 2617 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2618 void *arg, uint32_t evt) 2619 { 2620 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2621 2622 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2623 return ndlp->nlp_state; 2624 } 2625 2626 static uint32_t 2627 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2628 struct lpfc_nodelist *ndlp, 2629 void *arg, uint32_t evt) 2630 { 2631 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2632 2633 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2634 return ndlp->nlp_state; 2635 } 2636 2637 static uint32_t 2638 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2639 void *arg, uint32_t evt) 2640 { 2641 struct lpfc_hba *phba = vport->phba; 2642 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2643 2644 /* flush the target */ 2645 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], 2646 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2647 2648 /* Treat like rcv logo */ 2649 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2650 return ndlp->nlp_state; 2651 } 2652 2653 static uint32_t 2654 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2655 struct lpfc_nodelist *ndlp, 2656 void *arg, 2657 uint32_t evt) 2658 { 2659 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2660 2661 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2662 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2663 spin_lock_irq(shost->host_lock); 2664 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2665 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2666 spin_unlock_irq(shost->host_lock); 2667 lpfc_disc_set_adisc(vport, ndlp); 2668 return ndlp->nlp_state; 2669 } 2670 2671 static uint32_t 2672 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2673 void *arg, uint32_t evt) 2674 { 2675 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2676 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2677 2678 /* Ignore PLOGI if we have an outstanding LOGO */ 2679 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2680 return ndlp->nlp_state; 2681 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2682 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2683 spin_lock_irq(shost->host_lock); 2684 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2685 spin_unlock_irq(shost->host_lock); 2686 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2687 /* send PLOGI immediately, move to PLOGI issue state */ 2688 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2689 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2690 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2691 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2692 } 2693 } 2694 return ndlp->nlp_state; 2695 } 2696 2697 static uint32_t 2698 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2699 void *arg, uint32_t evt) 2700 { 2701 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2702 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2703 struct ls_rjt stat; 2704 2705 memset(&stat, 0, sizeof (struct ls_rjt)); 2706 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2707 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2708 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2709 2710 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2711 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2712 spin_lock_irq(shost->host_lock); 2713 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2714 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2715 spin_unlock_irq(shost->host_lock); 2716 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2717 lpfc_issue_els_adisc(vport, ndlp, 0); 2718 } else { 2719 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2720 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2721 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2722 } 2723 } 2724 return ndlp->nlp_state; 2725 } 2726 2727 static uint32_t 2728 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2729 void *arg, uint32_t evt) 2730 { 2731 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2732 2733 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2734 return ndlp->nlp_state; 2735 } 2736 2737 static uint32_t 2738 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2739 void *arg, uint32_t evt) 2740 { 2741 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2742 2743 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2744 /* 2745 * Do not start discovery if discovery is about to start 2746 * or discovery in progress for this node. Starting discovery 2747 * here will affect the counting of discovery threads. 2748 */ 2749 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2750 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2751 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2752 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2753 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2754 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2755 lpfc_issue_els_adisc(vport, ndlp, 0); 2756 } else { 2757 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2758 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2759 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2760 } 2761 } 2762 return ndlp->nlp_state; 2763 } 2764 2765 static uint32_t 2766 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2767 void *arg, uint32_t evt) 2768 { 2769 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2770 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2771 2772 spin_lock_irq(shost->host_lock); 2773 ndlp->nlp_flag |= NLP_LOGO_ACC; 2774 spin_unlock_irq(shost->host_lock); 2775 2776 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2777 2778 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2779 mod_timer(&ndlp->nlp_delayfunc, 2780 jiffies + msecs_to_jiffies(1000 * 1)); 2781 spin_lock_irq(shost->host_lock); 2782 ndlp->nlp_flag |= NLP_DELAY_TMO; 2783 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2784 spin_unlock_irq(shost->host_lock); 2785 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2786 } else { 2787 spin_lock_irq(shost->host_lock); 2788 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2789 spin_unlock_irq(shost->host_lock); 2790 } 2791 return ndlp->nlp_state; 2792 } 2793 2794 static uint32_t 2795 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2796 void *arg, uint32_t evt) 2797 { 2798 struct lpfc_iocbq *cmdiocb, *rspiocb; 2799 IOCB_t *irsp; 2800 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2801 2802 cmdiocb = (struct lpfc_iocbq *) arg; 2803 rspiocb = cmdiocb->context_un.rsp_iocb; 2804 2805 irsp = &rspiocb->iocb; 2806 if (irsp->ulpStatus) { 2807 spin_lock_irq(shost->host_lock); 2808 ndlp->nlp_flag |= NLP_DEFER_RM; 2809 spin_unlock_irq(shost->host_lock); 2810 return NLP_STE_FREED_NODE; 2811 } 2812 return ndlp->nlp_state; 2813 } 2814 2815 static uint32_t 2816 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2817 void *arg, uint32_t evt) 2818 { 2819 struct lpfc_iocbq *cmdiocb, *rspiocb; 2820 IOCB_t *irsp; 2821 2822 cmdiocb = (struct lpfc_iocbq *) arg; 2823 rspiocb = cmdiocb->context_un.rsp_iocb; 2824 2825 irsp = &rspiocb->iocb; 2826 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2827 lpfc_drop_node(vport, ndlp); 2828 return NLP_STE_FREED_NODE; 2829 } 2830 return ndlp->nlp_state; 2831 } 2832 2833 static uint32_t 2834 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2835 void *arg, uint32_t evt) 2836 { 2837 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2838 2839 /* For the fabric port just clear the fc flags. */ 2840 if (ndlp->nlp_DID == Fabric_DID) { 2841 spin_lock_irq(shost->host_lock); 2842 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2843 spin_unlock_irq(shost->host_lock); 2844 } 2845 lpfc_unreg_rpi(vport, ndlp); 2846 return ndlp->nlp_state; 2847 } 2848 2849 static uint32_t 2850 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2851 void *arg, uint32_t evt) 2852 { 2853 struct lpfc_iocbq *cmdiocb, *rspiocb; 2854 IOCB_t *irsp; 2855 2856 cmdiocb = (struct lpfc_iocbq *) arg; 2857 rspiocb = cmdiocb->context_un.rsp_iocb; 2858 2859 irsp = &rspiocb->iocb; 2860 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2861 lpfc_drop_node(vport, ndlp); 2862 return NLP_STE_FREED_NODE; 2863 } 2864 return ndlp->nlp_state; 2865 } 2866 2867 static uint32_t 2868 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2869 struct lpfc_nodelist *ndlp, 2870 void *arg, uint32_t evt) 2871 { 2872 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2873 MAILBOX_t *mb = &pmb->u.mb; 2874 2875 if (!mb->mbxStatus) { 2876 /* SLI4 ports have preallocated logical rpis. */ 2877 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2878 ndlp->nlp_rpi = mb->un.varWords[0]; 2879 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2880 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 2881 lpfc_unreg_rpi(vport, ndlp); 2882 } 2883 } else { 2884 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2885 lpfc_drop_node(vport, ndlp); 2886 return NLP_STE_FREED_NODE; 2887 } 2888 } 2889 return ndlp->nlp_state; 2890 } 2891 2892 static uint32_t 2893 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2894 void *arg, uint32_t evt) 2895 { 2896 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2897 2898 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2899 spin_lock_irq(shost->host_lock); 2900 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2901 spin_unlock_irq(shost->host_lock); 2902 return ndlp->nlp_state; 2903 } 2904 lpfc_drop_node(vport, ndlp); 2905 return NLP_STE_FREED_NODE; 2906 } 2907 2908 static uint32_t 2909 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2910 void *arg, uint32_t evt) 2911 { 2912 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2913 2914 /* Don't do anything that will mess up processing of the 2915 * previous RSCN. 2916 */ 2917 if (vport->fc_flag & FC_RSCN_DEFERRED) 2918 return ndlp->nlp_state; 2919 2920 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2921 spin_lock_irq(shost->host_lock); 2922 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2923 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2924 spin_unlock_irq(shost->host_lock); 2925 return ndlp->nlp_state; 2926 } 2927 2928 2929 /* This next section defines the NPort Discovery State Machine */ 2930 2931 /* There are 4 different double linked lists nodelist entries can reside on. 2932 * The plogi list and adisc list are used when Link Up discovery or RSCN 2933 * processing is needed. Each list holds the nodes that we will send PLOGI 2934 * or ADISC on. These lists will keep track of what nodes will be effected 2935 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2936 * The unmapped_list will contain all nodes that we have successfully logged 2937 * into at the Fibre Channel level. The mapped_list will contain all nodes 2938 * that are mapped FCP targets. 2939 */ 2940 /* 2941 * The bind list is a list of undiscovered (potentially non-existent) nodes 2942 * that we have saved binding information on. This information is used when 2943 * nodes transition from the unmapped to the mapped list. 2944 */ 2945 /* For UNUSED_NODE state, the node has just been allocated . 2946 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2947 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2948 * and put on the unmapped list. For ADISC processing, the node is taken off 2949 * the ADISC list and placed on either the mapped or unmapped list (depending 2950 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2951 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2952 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2953 * node, the node is taken off the unmapped list. The binding list is checked 2954 * for a valid binding, or a binding is automatically assigned. If binding 2955 * assignment is unsuccessful, the node is left on the unmapped list. If 2956 * binding assignment is successful, the associated binding list entry (if 2957 * any) is removed, and the node is placed on the mapped list. 2958 */ 2959 /* 2960 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2961 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2962 * expire, all effected nodes will receive a DEVICE_RM event. 2963 */ 2964 /* 2965 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2966 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2967 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2968 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2969 * we will first process the ADISC list. 32 entries are processed initially and 2970 * ADISC is initited for each one. Completions / Events for each node are 2971 * funnelled thru the state machine. As each node finishes ADISC processing, it 2972 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2973 * waiting, and the ADISC list count is identically 0, then we are done. For 2974 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2975 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2976 * list. 32 entries are processed initially and PLOGI is initited for each one. 2977 * Completions / Events for each node are funnelled thru the state machine. As 2978 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2979 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2980 * indentically 0, then we are done. We have now completed discovery / RSCN 2981 * handling. Upon completion, ALL nodes should be on either the mapped or 2982 * unmapped lists. 2983 */ 2984 2985 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2986 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2987 /* Action routine Event Current State */ 2988 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2989 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2990 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2991 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2992 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2993 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2994 lpfc_disc_illegal, /* CMPL_PLOGI */ 2995 lpfc_disc_illegal, /* CMPL_PRLI */ 2996 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2997 lpfc_disc_illegal, /* CMPL_ADISC */ 2998 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2999 lpfc_device_rm_unused_node, /* DEVICE_RM */ 3000 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 3001 3002 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 3003 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 3004 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 3005 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 3006 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 3007 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 3008 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 3009 lpfc_disc_illegal, /* CMPL_PRLI */ 3010 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 3011 lpfc_disc_illegal, /* CMPL_ADISC */ 3012 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 3013 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 3014 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 3015 3016 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 3017 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 3018 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 3019 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 3020 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 3021 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 3022 lpfc_disc_illegal, /* CMPL_PLOGI */ 3023 lpfc_disc_illegal, /* CMPL_PRLI */ 3024 lpfc_disc_illegal, /* CMPL_LOGO */ 3025 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 3026 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3027 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 3028 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 3029 3030 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 3031 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 3032 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 3033 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 3034 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 3035 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 3036 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3037 lpfc_disc_illegal, /* CMPL_PRLI */ 3038 lpfc_disc_illegal, /* CMPL_LOGO */ 3039 lpfc_disc_illegal, /* CMPL_ADISC */ 3040 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 3041 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 3042 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 3043 3044 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 3045 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 3046 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 3047 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 3048 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 3049 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 3050 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3051 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 3052 lpfc_disc_illegal, /* CMPL_LOGO */ 3053 lpfc_disc_illegal, /* CMPL_ADISC */ 3054 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3055 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 3056 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 3057 3058 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 3059 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 3060 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 3061 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 3062 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 3063 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 3064 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3065 lpfc_disc_illegal, /* CMPL_PRLI */ 3066 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 3067 lpfc_disc_illegal, /* CMPL_ADISC */ 3068 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3069 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 3070 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 3071 3072 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 3073 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 3074 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 3075 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 3076 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 3077 lpfc_rcv_prlo_unmap_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_unmap_node, /* DEVICE_RECOVERY */ 3085 3086 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 3087 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 3088 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 3089 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 3090 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 3091 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 3092 lpfc_disc_illegal, /* CMPL_PLOGI */ 3093 lpfc_disc_illegal, /* CMPL_PRLI */ 3094 lpfc_disc_illegal, /* CMPL_LOGO */ 3095 lpfc_disc_illegal, /* CMPL_ADISC */ 3096 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3097 lpfc_disc_illegal, /* DEVICE_RM */ 3098 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 3099 3100 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 3101 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 3102 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 3103 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 3104 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 3105 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 3106 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 3107 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 3108 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 3109 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 3110 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 3111 lpfc_device_rm_npr_node, /* DEVICE_RM */ 3112 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 3113 }; 3114 3115 int 3116 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3117 void *arg, uint32_t evt) 3118 { 3119 uint32_t cur_state, rc; 3120 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 3121 uint32_t); 3122 uint32_t got_ndlp = 0; 3123 uint32_t data1; 3124 3125 if (lpfc_nlp_get(ndlp)) 3126 got_ndlp = 1; 3127 3128 cur_state = ndlp->nlp_state; 3129 3130 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3131 ((uint32_t)ndlp->nlp_type)); 3132 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 3133 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3134 "0211 DSM in event x%x on NPort x%x in " 3135 "state %d rpi x%x Data: x%x x%x\n", 3136 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, 3137 ndlp->nlp_flag, data1); 3138 3139 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3140 "DSM in: evt:%d ste:%d did:x%x", 3141 evt, cur_state, ndlp->nlp_DID); 3142 3143 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 3144 rc = (func) (vport, ndlp, arg, evt); 3145 3146 /* DSM out state <rc> on NPort <nlp_DID> */ 3147 if (got_ndlp) { 3148 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3149 ((uint32_t)ndlp->nlp_type)); 3150 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3151 "0212 DSM out state %d on NPort x%x " 3152 "rpi x%x Data: x%x x%x\n", 3153 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag, 3154 data1); 3155 3156 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3157 "DSM out: ste:%d did:x%x flg:x%x", 3158 rc, ndlp->nlp_DID, ndlp->nlp_flag); 3159 /* Decrement the ndlp reference count held for this function */ 3160 lpfc_nlp_put(ndlp); 3161 } else { 3162 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3163 "0213 DSM out state %d on NPort free\n", rc); 3164 3165 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3166 "DSM out: ste:%d did:x%x flg:x%x", 3167 rc, 0, 0); 3168 } 3169 3170 return rc; 3171 } 3172