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 <linux/nvme-fc-driver.h> 36 37 #include "lpfc_hw4.h" 38 #include "lpfc_hw.h" 39 #include "lpfc_sli.h" 40 #include "lpfc_sli4.h" 41 #include "lpfc_nl.h" 42 #include "lpfc_disc.h" 43 #include "lpfc.h" 44 #include "lpfc_scsi.h" 45 #include "lpfc_nvme.h" 46 #include "lpfc_logmsg.h" 47 #include "lpfc_crtn.h" 48 #include "lpfc_vport.h" 49 #include "lpfc_debugfs.h" 50 51 52 /* Called to verify a rcv'ed ADISC was intended for us. */ 53 static int 54 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 55 struct lpfc_name *nn, struct lpfc_name *pn) 56 { 57 /* First, we MUST have a RPI registered */ 58 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) 59 return 0; 60 61 /* Compare the ADISC rsp WWNN / WWPN matches our internal node 62 * table entry for that node. 63 */ 64 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) 65 return 0; 66 67 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) 68 return 0; 69 70 /* we match, return success */ 71 return 1; 72 } 73 74 int 75 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 76 struct serv_parm *sp, uint32_t class, int flogi) 77 { 78 volatile struct serv_parm *hsp = &vport->fc_sparam; 79 uint16_t hsp_value, ssp_value = 0; 80 81 /* 82 * The receive data field size and buffer-to-buffer receive data field 83 * size entries are 16 bits but are represented as two 8-bit fields in 84 * the driver data structure to account for rsvd bits and other control 85 * bits. Reconstruct and compare the fields as a 16-bit values before 86 * correcting the byte values. 87 */ 88 if (sp->cls1.classValid) { 89 if (!flogi) { 90 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) | 91 hsp->cls1.rcvDataSizeLsb); 92 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) | 93 sp->cls1.rcvDataSizeLsb); 94 if (!ssp_value) 95 goto bad_service_param; 96 if (ssp_value > hsp_value) { 97 sp->cls1.rcvDataSizeLsb = 98 hsp->cls1.rcvDataSizeLsb; 99 sp->cls1.rcvDataSizeMsb = 100 hsp->cls1.rcvDataSizeMsb; 101 } 102 } 103 } else if (class == CLASS1) 104 goto bad_service_param; 105 if (sp->cls2.classValid) { 106 if (!flogi) { 107 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) | 108 hsp->cls2.rcvDataSizeLsb); 109 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) | 110 sp->cls2.rcvDataSizeLsb); 111 if (!ssp_value) 112 goto bad_service_param; 113 if (ssp_value > hsp_value) { 114 sp->cls2.rcvDataSizeLsb = 115 hsp->cls2.rcvDataSizeLsb; 116 sp->cls2.rcvDataSizeMsb = 117 hsp->cls2.rcvDataSizeMsb; 118 } 119 } 120 } else if (class == CLASS2) 121 goto bad_service_param; 122 if (sp->cls3.classValid) { 123 if (!flogi) { 124 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) | 125 hsp->cls3.rcvDataSizeLsb); 126 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) | 127 sp->cls3.rcvDataSizeLsb); 128 if (!ssp_value) 129 goto bad_service_param; 130 if (ssp_value > hsp_value) { 131 sp->cls3.rcvDataSizeLsb = 132 hsp->cls3.rcvDataSizeLsb; 133 sp->cls3.rcvDataSizeMsb = 134 hsp->cls3.rcvDataSizeMsb; 135 } 136 } 137 } else if (class == CLASS3) 138 goto bad_service_param; 139 140 /* 141 * Preserve the upper four bits of the MSB from the PLOGI response. 142 * These bits contain the Buffer-to-Buffer State Change Number 143 * from the target and need to be passed to the FW. 144 */ 145 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; 146 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; 147 if (ssp_value > hsp_value) { 148 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; 149 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | 150 (hsp->cmn.bbRcvSizeMsb & 0x0F); 151 } 152 153 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); 154 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); 155 return 1; 156 bad_service_param: 157 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 158 "0207 Device %x " 159 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 160 "invalid service parameters. Ignoring device.\n", 161 ndlp->nlp_DID, 162 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 163 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 164 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 165 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 166 return 0; 167 } 168 169 static void * 170 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 171 struct lpfc_iocbq *rspiocb) 172 { 173 struct lpfc_dmabuf *pcmd, *prsp; 174 uint32_t *lp; 175 void *ptr = NULL; 176 IOCB_t *irsp; 177 178 irsp = &rspiocb->iocb; 179 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 180 181 /* For lpfc_els_abort, context2 could be zero'ed to delay 182 * freeing associated memory till after ABTS completes. 183 */ 184 if (pcmd) { 185 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, 186 list); 187 if (prsp) { 188 lp = (uint32_t *) prsp->virt; 189 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); 190 } 191 } else { 192 /* Force ulpStatus error since we are returning NULL ptr */ 193 if (!(irsp->ulpStatus)) { 194 irsp->ulpStatus = IOSTAT_LOCAL_REJECT; 195 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED; 196 } 197 ptr = NULL; 198 } 199 return ptr; 200 } 201 202 203 204 /* 205 * Free resources / clean up outstanding I/Os 206 * associated with a LPFC_NODELIST entry. This 207 * routine effectively results in a "software abort". 208 */ 209 void 210 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 211 { 212 LIST_HEAD(abort_list); 213 struct lpfc_sli_ring *pring; 214 struct lpfc_iocbq *iocb, *next_iocb; 215 216 pring = lpfc_phba_elsring(phba); 217 218 /* In case of error recovery path, we might have a NULL pring here */ 219 if (unlikely(!pring)) 220 return; 221 222 /* Abort outstanding I/O on NPort <nlp_DID> */ 223 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, 224 "2819 Abort outstanding I/O on NPort x%x " 225 "Data: x%x x%x x%x\n", 226 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 227 ndlp->nlp_rpi); 228 /* Clean up all fabric IOs first.*/ 229 lpfc_fabric_abort_nport(ndlp); 230 231 /* 232 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list 233 * of all ELS IOs that need an ABTS. The IOs need to stay on the 234 * txcmplq so that the abort operation completes them successfully. 235 */ 236 spin_lock_irq(&phba->hbalock); 237 if (phba->sli_rev == LPFC_SLI_REV4) 238 spin_lock(&pring->ring_lock); 239 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 240 /* Add to abort_list on on NDLP match. */ 241 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 242 list_add_tail(&iocb->dlist, &abort_list); 243 } 244 if (phba->sli_rev == LPFC_SLI_REV4) 245 spin_unlock(&pring->ring_lock); 246 spin_unlock_irq(&phba->hbalock); 247 248 /* Abort the targeted IOs and remove them from the abort list. */ 249 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) { 250 spin_lock_irq(&phba->hbalock); 251 list_del_init(&iocb->dlist); 252 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 253 spin_unlock_irq(&phba->hbalock); 254 } 255 256 INIT_LIST_HEAD(&abort_list); 257 258 /* Now process the txq */ 259 spin_lock_irq(&phba->hbalock); 260 if (phba->sli_rev == LPFC_SLI_REV4) 261 spin_lock(&pring->ring_lock); 262 263 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 264 /* Check to see if iocb matches the nport we are looking for */ 265 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 266 list_del_init(&iocb->list); 267 list_add_tail(&iocb->list, &abort_list); 268 } 269 } 270 271 if (phba->sli_rev == LPFC_SLI_REV4) 272 spin_unlock(&pring->ring_lock); 273 spin_unlock_irq(&phba->hbalock); 274 275 /* Cancel all the IOCBs from the completions list */ 276 lpfc_sli_cancel_iocbs(phba, &abort_list, 277 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 278 279 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 280 } 281 282 static int 283 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 284 struct lpfc_iocbq *cmdiocb) 285 { 286 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 287 struct lpfc_hba *phba = vport->phba; 288 struct lpfc_dmabuf *pcmd; 289 uint64_t nlp_portwwn = 0; 290 uint32_t *lp; 291 IOCB_t *icmd; 292 struct serv_parm *sp; 293 uint32_t ed_tov; 294 LPFC_MBOXQ_t *mbox; 295 struct ls_rjt stat; 296 uint32_t vid, flag; 297 int rc; 298 299 memset(&stat, 0, sizeof (struct ls_rjt)); 300 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 301 lp = (uint32_t *) pcmd->virt; 302 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 303 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 304 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 305 "0140 PLOGI Reject: invalid nname\n"); 306 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 307 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 308 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 309 NULL); 310 return 0; 311 } 312 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 313 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 314 "0141 PLOGI Reject: invalid pname\n"); 315 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 316 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 317 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 318 NULL); 319 return 0; 320 } 321 322 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 323 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 324 /* Reject this request because invalid parameters */ 325 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 326 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 327 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 328 NULL); 329 return 0; 330 } 331 icmd = &cmdiocb->iocb; 332 333 /* PLOGI chkparm OK */ 334 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 335 "0114 PLOGI chkparm OK Data: x%x x%x x%x " 336 "x%x x%x x%x\n", 337 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 338 ndlp->nlp_rpi, vport->port_state, 339 vport->fc_flag); 340 341 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 342 ndlp->nlp_fcp_info |= CLASS2; 343 else 344 ndlp->nlp_fcp_info |= CLASS3; 345 346 ndlp->nlp_class_sup = 0; 347 if (sp->cls1.classValid) 348 ndlp->nlp_class_sup |= FC_COS_CLASS1; 349 if (sp->cls2.classValid) 350 ndlp->nlp_class_sup |= FC_COS_CLASS2; 351 if (sp->cls3.classValid) 352 ndlp->nlp_class_sup |= FC_COS_CLASS3; 353 if (sp->cls4.classValid) 354 ndlp->nlp_class_sup |= FC_COS_CLASS4; 355 ndlp->nlp_maxframe = 356 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 357 358 /* if already logged in, do implicit logout */ 359 switch (ndlp->nlp_state) { 360 case NLP_STE_NPR_NODE: 361 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 362 break; 363 /* fall through */ 364 case NLP_STE_REG_LOGIN_ISSUE: 365 case NLP_STE_PRLI_ISSUE: 366 case NLP_STE_UNMAPPED_NODE: 367 case NLP_STE_MAPPED_NODE: 368 /* For initiators, lpfc_plogi_confirm_nport skips fabric did. 369 * For target mode, execute implicit logo. 370 * Fabric nodes go into NPR. 371 */ 372 if (!(ndlp->nlp_type & NLP_FABRIC) && 373 !(phba->nvmet_support)) { 374 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 375 ndlp, NULL); 376 return 1; 377 } 378 if (nlp_portwwn != 0 && 379 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 380 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 381 "0143 PLOGI recv'd from DID: x%x " 382 "WWPN changed: old %llx new %llx\n", 383 ndlp->nlp_DID, 384 (unsigned long long)nlp_portwwn, 385 (unsigned long long) 386 wwn_to_u64(sp->portName.u.wwn)); 387 388 ndlp->nlp_prev_state = ndlp->nlp_state; 389 /* rport needs to be unregistered first */ 390 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 391 break; 392 } 393 394 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 395 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 396 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 397 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 398 399 /* Check for Nport to NPort pt2pt protocol */ 400 if ((vport->fc_flag & FC_PT2PT) && 401 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 402 /* rcv'ed PLOGI decides what our NPortId will be */ 403 vport->fc_myDID = icmd->un.rcvels.parmRo; 404 405 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 406 if (sp->cmn.edtovResolution) { 407 /* E_D_TOV ticks are in nanoseconds */ 408 ed_tov = (phba->fc_edtov + 999999) / 1000000; 409 } 410 411 /* 412 * For pt-to-pt, use the larger EDTOV 413 * RATOV = 2 * EDTOV 414 */ 415 if (ed_tov > phba->fc_edtov) 416 phba->fc_edtov = ed_tov; 417 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 418 419 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 420 421 /* Issue config_link / reg_vfi to account for updated TOV's */ 422 423 if (phba->sli_rev == LPFC_SLI_REV4) 424 lpfc_issue_reg_vfi(vport); 425 else { 426 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 427 if (mbox == NULL) 428 goto out; 429 lpfc_config_link(phba, mbox); 430 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 431 mbox->vport = vport; 432 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 433 if (rc == MBX_NOT_FINISHED) { 434 mempool_free(mbox, phba->mbox_mem_pool); 435 goto out; 436 } 437 } 438 439 lpfc_can_disctmo(vport); 440 } 441 442 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 443 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 444 sp->cmn.valid_vendor_ver_level) { 445 vid = be32_to_cpu(sp->un.vv.vid); 446 flag = be32_to_cpu(sp->un.vv.flags); 447 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) 448 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 449 } 450 451 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 452 if (!mbox) 453 goto out; 454 455 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 456 if (phba->sli_rev == LPFC_SLI_REV4) 457 lpfc_unreg_rpi(vport, ndlp); 458 459 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID, 460 (uint8_t *) sp, mbox, ndlp->nlp_rpi); 461 if (rc) { 462 mempool_free(mbox, phba->mbox_mem_pool); 463 goto out; 464 } 465 466 /* ACC PLOGI rsp command needs to execute first, 467 * queue this mbox command to be processed later. 468 */ 469 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 470 /* 471 * mbox->ctx_ndlp = lpfc_nlp_get(ndlp) deferred until mailbox 472 * command issued in lpfc_cmpl_els_acc(). 473 */ 474 mbox->vport = vport; 475 spin_lock_irq(shost->host_lock); 476 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 477 spin_unlock_irq(shost->host_lock); 478 479 /* 480 * If there is an outstanding PLOGI issued, abort it before 481 * sending ACC rsp for received PLOGI. If pending plogi 482 * is not canceled here, the plogi will be rejected by 483 * remote port and will be retried. On a configuration with 484 * single discovery thread, this will cause a huge delay in 485 * discovery. Also this will cause multiple state machines 486 * running in parallel for this node. 487 */ 488 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) { 489 /* software abort outstanding PLOGI */ 490 lpfc_els_abort(phba, ndlp); 491 } 492 493 if ((vport->port_type == LPFC_NPIV_PORT && 494 vport->cfg_restrict_login)) { 495 496 /* In order to preserve RPIs, we want to cleanup 497 * the default RPI the firmware created to rcv 498 * this ELS request. The only way to do this is 499 * to register, then unregister the RPI. 500 */ 501 spin_lock_irq(shost->host_lock); 502 ndlp->nlp_flag |= NLP_RM_DFLT_RPI; 503 spin_unlock_irq(shost->host_lock); 504 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 505 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 506 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 507 ndlp, mbox); 508 if (rc) 509 mempool_free(mbox, phba->mbox_mem_pool); 510 return 1; 511 } 512 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox); 513 if (rc) 514 mempool_free(mbox, phba->mbox_mem_pool); 515 return 1; 516 out: 517 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 518 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 519 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 520 return 0; 521 } 522 523 /** 524 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 525 * @phba: pointer to lpfc hba data structure. 526 * @mboxq: pointer to mailbox object 527 * 528 * This routine is invoked to issue a completion to a rcv'ed 529 * ADISC or PDISC after the paused RPI has been resumed. 530 **/ 531 static void 532 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 533 { 534 struct lpfc_vport *vport; 535 struct lpfc_iocbq *elsiocb; 536 struct lpfc_nodelist *ndlp; 537 uint32_t cmd; 538 539 elsiocb = (struct lpfc_iocbq *)mboxq->ctx_buf; 540 ndlp = (struct lpfc_nodelist *)mboxq->ctx_ndlp; 541 vport = mboxq->vport; 542 cmd = elsiocb->drvrTimeout; 543 544 if (cmd == ELS_CMD_ADISC) { 545 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 546 } else { 547 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 548 ndlp, NULL); 549 } 550 kfree(elsiocb); 551 mempool_free(mboxq, phba->mbox_mem_pool); 552 } 553 554 static int 555 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 556 struct lpfc_iocbq *cmdiocb) 557 { 558 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 559 struct lpfc_iocbq *elsiocb; 560 struct lpfc_dmabuf *pcmd; 561 struct serv_parm *sp; 562 struct lpfc_name *pnn, *ppn; 563 struct ls_rjt stat; 564 ADISC *ap; 565 IOCB_t *icmd; 566 uint32_t *lp; 567 uint32_t cmd; 568 569 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 570 lp = (uint32_t *) pcmd->virt; 571 572 cmd = *lp++; 573 if (cmd == ELS_CMD_ADISC) { 574 ap = (ADISC *) lp; 575 pnn = (struct lpfc_name *) & ap->nodeName; 576 ppn = (struct lpfc_name *) & ap->portName; 577 } else { 578 sp = (struct serv_parm *) lp; 579 pnn = (struct lpfc_name *) & sp->nodeName; 580 ppn = (struct lpfc_name *) & sp->portName; 581 } 582 583 icmd = &cmdiocb->iocb; 584 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 585 586 /* 587 * As soon as we send ACC, the remote NPort can 588 * start sending us data. Thus, for SLI4 we must 589 * resume the RPI before the ACC goes out. 590 */ 591 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 592 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 593 GFP_KERNEL); 594 if (elsiocb) { 595 596 /* Save info from cmd IOCB used in rsp */ 597 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 598 sizeof(struct lpfc_iocbq)); 599 600 /* Save the ELS cmd */ 601 elsiocb->drvrTimeout = cmd; 602 603 lpfc_sli4_resume_rpi(ndlp, 604 lpfc_mbx_cmpl_resume_rpi, elsiocb); 605 goto out; 606 } 607 } 608 609 if (cmd == ELS_CMD_ADISC) { 610 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 611 } else { 612 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 613 ndlp, NULL); 614 } 615 out: 616 /* If we are authenticated, move to the proper state */ 617 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 618 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 619 else 620 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 621 622 return 1; 623 } 624 /* Reject this request because invalid parameters */ 625 stat.un.b.lsRjtRsvd0 = 0; 626 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 627 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 628 stat.un.b.vendorUnique = 0; 629 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 630 631 /* 1 sec timeout */ 632 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 633 634 spin_lock_irq(shost->host_lock); 635 ndlp->nlp_flag |= NLP_DELAY_TMO; 636 spin_unlock_irq(shost->host_lock); 637 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 638 ndlp->nlp_prev_state = ndlp->nlp_state; 639 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 640 return 0; 641 } 642 643 static int 644 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 645 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 646 { 647 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 648 struct lpfc_hba *phba = vport->phba; 649 struct lpfc_vport **vports; 650 int i, active_vlink_present = 0 ; 651 652 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 653 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 654 * PLOGIs during LOGO storms from a device. 655 */ 656 spin_lock_irq(shost->host_lock); 657 ndlp->nlp_flag |= NLP_LOGO_ACC; 658 spin_unlock_irq(shost->host_lock); 659 if (els_cmd == ELS_CMD_PRLO) 660 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 661 else 662 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 663 if (ndlp->nlp_DID == Fabric_DID) { 664 if (vport->port_state <= LPFC_FDISC) 665 goto out; 666 lpfc_linkdown_port(vport); 667 spin_lock_irq(shost->host_lock); 668 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 669 spin_unlock_irq(shost->host_lock); 670 vports = lpfc_create_vport_work_array(phba); 671 if (vports) { 672 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 673 i++) { 674 if ((!(vports[i]->fc_flag & 675 FC_VPORT_LOGO_RCVD)) && 676 (vports[i]->port_state > LPFC_FDISC)) { 677 active_vlink_present = 1; 678 break; 679 } 680 } 681 lpfc_destroy_vport_work_array(phba, vports); 682 } 683 684 /* 685 * Don't re-instantiate if vport is marked for deletion. 686 * If we are here first then vport_delete is going to wait 687 * for discovery to complete. 688 */ 689 if (!(vport->load_flag & FC_UNLOADING) && 690 active_vlink_present) { 691 /* 692 * If there are other active VLinks present, 693 * re-instantiate the Vlink using FDISC. 694 */ 695 mod_timer(&ndlp->nlp_delayfunc, 696 jiffies + msecs_to_jiffies(1000)); 697 spin_lock_irq(shost->host_lock); 698 ndlp->nlp_flag |= NLP_DELAY_TMO; 699 spin_unlock_irq(shost->host_lock); 700 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 701 vport->port_state = LPFC_FDISC; 702 } else { 703 spin_lock_irq(shost->host_lock); 704 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 705 spin_unlock_irq(shost->host_lock); 706 lpfc_retry_pport_discovery(phba); 707 } 708 } else if ((!(ndlp->nlp_type & NLP_FABRIC) && 709 ((ndlp->nlp_type & NLP_FCP_TARGET) || 710 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) || 711 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { 712 /* Only try to re-login if this is NOT a Fabric Node */ 713 mod_timer(&ndlp->nlp_delayfunc, 714 jiffies + msecs_to_jiffies(1000 * 1)); 715 spin_lock_irq(shost->host_lock); 716 ndlp->nlp_flag |= NLP_DELAY_TMO; 717 spin_unlock_irq(shost->host_lock); 718 719 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 720 } 721 out: 722 ndlp->nlp_prev_state = ndlp->nlp_state; 723 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 724 725 spin_lock_irq(shost->host_lock); 726 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 727 spin_unlock_irq(shost->host_lock); 728 /* The driver has to wait until the ACC completes before it continues 729 * processing the LOGO. The action will resume in 730 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 731 * unreg_login, the driver waits so the ACC does not get aborted. 732 */ 733 return 0; 734 } 735 736 static uint32_t 737 lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 738 struct lpfc_nodelist *ndlp, 739 struct lpfc_iocbq *cmdiocb) 740 { 741 struct ls_rjt stat; 742 uint32_t *payload; 743 uint32_t cmd; 744 745 payload = ((struct lpfc_dmabuf *)cmdiocb->context2)->virt; 746 cmd = *payload; 747 if (vport->phba->nvmet_support) { 748 /* Must be a NVME PRLI */ 749 if (cmd == ELS_CMD_PRLI) 750 goto out; 751 } else { 752 /* Initiator mode. */ 753 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 754 goto out; 755 } 756 return 1; 757 out: 758 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC, 759 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 760 "state x%x flags x%x\n", 761 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 762 ndlp->nlp_flag); 763 memset(&stat, 0, sizeof(struct ls_rjt)); 764 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 765 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 766 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 767 ndlp, NULL); 768 return 0; 769 } 770 771 static void 772 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 773 struct lpfc_iocbq *cmdiocb) 774 { 775 struct lpfc_hba *phba = vport->phba; 776 struct lpfc_dmabuf *pcmd; 777 uint32_t *lp; 778 PRLI *npr; 779 struct fc_rport *rport = ndlp->rport; 780 u32 roles; 781 782 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 783 lp = (uint32_t *) pcmd->virt; 784 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t)); 785 786 if ((npr->prliType == PRLI_FCP_TYPE) || 787 (npr->prliType == PRLI_NVME_TYPE)) { 788 if (npr->initiatorFunc) { 789 if (npr->prliType == PRLI_FCP_TYPE) 790 ndlp->nlp_type |= NLP_FCP_INITIATOR; 791 if (npr->prliType == PRLI_NVME_TYPE) 792 ndlp->nlp_type |= NLP_NVME_INITIATOR; 793 } 794 if (npr->targetFunc) { 795 if (npr->prliType == PRLI_FCP_TYPE) 796 ndlp->nlp_type |= NLP_FCP_TARGET; 797 if (npr->prliType == PRLI_NVME_TYPE) 798 ndlp->nlp_type |= NLP_NVME_TARGET; 799 if (npr->writeXferRdyDis) 800 ndlp->nlp_flag |= NLP_FIRSTBURST; 801 } 802 if (npr->Retry && ndlp->nlp_type & 803 (NLP_FCP_INITIATOR | NLP_FCP_TARGET)) 804 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 805 806 if (npr->Retry && phba->nsler && 807 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET)) 808 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 809 810 811 /* If this driver is in nvme target mode, set the ndlp's fc4 812 * type to NVME provided the PRLI response claims NVME FC4 813 * type. Target mode does not issue gft_id so doesn't get 814 * the fc4 type set until now. 815 */ 816 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 817 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 818 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 819 } 820 if (npr->prliType == PRLI_FCP_TYPE) 821 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 822 } 823 if (rport) { 824 /* We need to update the rport role values */ 825 roles = FC_RPORT_ROLE_UNKNOWN; 826 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 827 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 828 if (ndlp->nlp_type & NLP_FCP_TARGET) 829 roles |= FC_RPORT_ROLE_FCP_TARGET; 830 831 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 832 "rport rolechg: role:x%x did:x%x flg:x%x", 833 roles, ndlp->nlp_DID, ndlp->nlp_flag); 834 835 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 836 fc_remote_port_rolechg(rport, roles); 837 } 838 } 839 840 static uint32_t 841 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 842 { 843 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 844 845 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 846 spin_lock_irq(shost->host_lock); 847 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 848 spin_unlock_irq(shost->host_lock); 849 return 0; 850 } 851 852 if (!(vport->fc_flag & FC_PT2PT)) { 853 /* Check config parameter use-adisc or FCP-2 */ 854 if (vport->cfg_use_adisc && ((vport->fc_flag & FC_RSCN_MODE) || 855 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 856 (ndlp->nlp_type & NLP_FCP_TARGET)))) { 857 spin_lock_irq(shost->host_lock); 858 ndlp->nlp_flag |= NLP_NPR_ADISC; 859 spin_unlock_irq(shost->host_lock); 860 return 1; 861 } 862 } 863 864 spin_lock_irq(shost->host_lock); 865 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 866 spin_unlock_irq(shost->host_lock); 867 lpfc_unreg_rpi(vport, ndlp); 868 return 0; 869 } 870 871 /** 872 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 873 * @phba : Pointer to lpfc_hba structure. 874 * @vport: Pointer to lpfc_vport structure. 875 * @rpi : rpi to be release. 876 * 877 * This function will send a unreg_login mailbox command to the firmware 878 * to release a rpi. 879 **/ 880 static void 881 lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, 882 struct lpfc_nodelist *ndlp, uint16_t rpi) 883 { 884 LPFC_MBOXQ_t *pmb; 885 int rc; 886 887 /* If there is already an UNREG in progress for this ndlp, 888 * no need to queue up another one. 889 */ 890 if (ndlp->nlp_flag & NLP_UNREG_INP) { 891 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 892 "1435 release_rpi SKIP UNREG x%x on " 893 "NPort x%x deferred x%x flg x%x " 894 "Data: x%px\n", 895 ndlp->nlp_rpi, ndlp->nlp_DID, 896 ndlp->nlp_defer_did, 897 ndlp->nlp_flag, ndlp); 898 return; 899 } 900 901 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 902 GFP_KERNEL); 903 if (!pmb) 904 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 905 "2796 mailbox memory allocation failed \n"); 906 else { 907 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 908 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 909 pmb->vport = vport; 910 pmb->ctx_ndlp = ndlp; 911 912 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 913 (!(vport->fc_flag & FC_OFFLINE_MODE))) 914 ndlp->nlp_flag |= NLP_UNREG_INP; 915 916 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 917 "1437 release_rpi UNREG x%x " 918 "on NPort x%x flg x%x\n", 919 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); 920 921 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 922 if (rc == MBX_NOT_FINISHED) 923 mempool_free(pmb, phba->mbox_mem_pool); 924 } 925 } 926 927 static uint32_t 928 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 929 void *arg, uint32_t evt) 930 { 931 struct lpfc_hba *phba; 932 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 933 uint16_t rpi; 934 935 phba = vport->phba; 936 /* Release the RPI if reglogin completing */ 937 if (!(phba->pport->load_flag & FC_UNLOADING) && 938 (evt == NLP_EVT_CMPL_REG_LOGIN) && 939 (!pmb->u.mb.mbxStatus)) { 940 rpi = pmb->u.mb.un.varWords[0]; 941 lpfc_release_rpi(phba, vport, ndlp, rpi); 942 } 943 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 944 "0271 Illegal State Transition: node x%x " 945 "event x%x, state x%x Data: x%x x%x\n", 946 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 947 ndlp->nlp_flag); 948 return ndlp->nlp_state; 949 } 950 951 static uint32_t 952 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 953 void *arg, uint32_t evt) 954 { 955 /* This transition is only legal if we previously 956 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 957 * working on the same NPortID, do nothing for this thread 958 * to stop it. 959 */ 960 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 961 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 962 "0272 Illegal State Transition: node x%x " 963 "event x%x, state x%x Data: x%x x%x\n", 964 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 965 ndlp->nlp_flag); 966 } 967 return ndlp->nlp_state; 968 } 969 970 /* Start of Discovery State Machine routines */ 971 972 static uint32_t 973 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 974 void *arg, uint32_t evt) 975 { 976 struct lpfc_iocbq *cmdiocb; 977 978 cmdiocb = (struct lpfc_iocbq *) arg; 979 980 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 981 return ndlp->nlp_state; 982 } 983 return NLP_STE_FREED_NODE; 984 } 985 986 static uint32_t 987 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 988 void *arg, uint32_t evt) 989 { 990 lpfc_issue_els_logo(vport, ndlp, 0); 991 return ndlp->nlp_state; 992 } 993 994 static uint32_t 995 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 996 void *arg, uint32_t evt) 997 { 998 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 999 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1000 1001 spin_lock_irq(shost->host_lock); 1002 ndlp->nlp_flag |= NLP_LOGO_ACC; 1003 spin_unlock_irq(shost->host_lock); 1004 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1005 1006 return ndlp->nlp_state; 1007 } 1008 1009 static uint32_t 1010 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1011 void *arg, uint32_t evt) 1012 { 1013 return NLP_STE_FREED_NODE; 1014 } 1015 1016 static uint32_t 1017 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1018 void *arg, uint32_t evt) 1019 { 1020 return NLP_STE_FREED_NODE; 1021 } 1022 1023 static uint32_t 1024 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 1025 struct lpfc_nodelist *ndlp, 1026 void *arg, uint32_t evt) 1027 { 1028 return ndlp->nlp_state; 1029 } 1030 1031 static uint32_t 1032 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1033 void *arg, uint32_t evt) 1034 { 1035 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1036 struct lpfc_hba *phba = vport->phba; 1037 struct lpfc_iocbq *cmdiocb = arg; 1038 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1039 uint32_t *lp = (uint32_t *) pcmd->virt; 1040 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1041 struct ls_rjt stat; 1042 int port_cmp; 1043 1044 memset(&stat, 0, sizeof (struct ls_rjt)); 1045 1046 /* For a PLOGI, we only accept if our portname is less 1047 * than the remote portname. 1048 */ 1049 phba->fc_stat.elsLogiCol++; 1050 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1051 sizeof(struct lpfc_name)); 1052 1053 if (port_cmp >= 0) { 1054 /* Reject this request because the remote node will accept 1055 ours */ 1056 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1057 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1058 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1059 NULL); 1060 } else { 1061 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1062 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 1063 (vport->num_disc_nodes)) { 1064 spin_lock_irq(shost->host_lock); 1065 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1066 spin_unlock_irq(shost->host_lock); 1067 /* Check if there are more PLOGIs to be sent */ 1068 lpfc_more_plogi(vport); 1069 if (vport->num_disc_nodes == 0) { 1070 spin_lock_irq(shost->host_lock); 1071 vport->fc_flag &= ~FC_NDISC_ACTIVE; 1072 spin_unlock_irq(shost->host_lock); 1073 lpfc_can_disctmo(vport); 1074 lpfc_end_rscn(vport); 1075 } 1076 } 1077 } /* If our portname was less */ 1078 1079 return ndlp->nlp_state; 1080 } 1081 1082 static uint32_t 1083 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1084 void *arg, uint32_t evt) 1085 { 1086 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1087 struct ls_rjt stat; 1088 1089 memset(&stat, 0, sizeof (struct ls_rjt)); 1090 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1091 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1092 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1093 return ndlp->nlp_state; 1094 } 1095 1096 static uint32_t 1097 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1098 void *arg, uint32_t evt) 1099 { 1100 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1101 1102 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1103 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1104 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1105 /* software abort outstanding PLOGI */ 1106 lpfc_els_abort(vport->phba, ndlp); 1107 1108 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1109 return ndlp->nlp_state; 1110 } 1111 1112 static uint32_t 1113 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1114 void *arg, uint32_t evt) 1115 { 1116 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1117 struct lpfc_hba *phba = vport->phba; 1118 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1119 1120 /* software abort outstanding PLOGI */ 1121 lpfc_els_abort(phba, ndlp); 1122 1123 if (evt == NLP_EVT_RCV_LOGO) { 1124 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1125 } else { 1126 lpfc_issue_els_logo(vport, ndlp, 0); 1127 } 1128 1129 /* Put ndlp in npr state set plogi timer for 1 sec */ 1130 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1131 spin_lock_irq(shost->host_lock); 1132 ndlp->nlp_flag |= NLP_DELAY_TMO; 1133 spin_unlock_irq(shost->host_lock); 1134 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1135 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1136 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1137 1138 return ndlp->nlp_state; 1139 } 1140 1141 static uint32_t 1142 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1143 struct lpfc_nodelist *ndlp, 1144 void *arg, 1145 uint32_t evt) 1146 { 1147 struct lpfc_hba *phba = vport->phba; 1148 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1149 struct lpfc_iocbq *cmdiocb, *rspiocb; 1150 struct lpfc_dmabuf *pcmd, *prsp, *mp; 1151 uint32_t *lp; 1152 uint32_t vid, flag; 1153 IOCB_t *irsp; 1154 struct serv_parm *sp; 1155 uint32_t ed_tov; 1156 LPFC_MBOXQ_t *mbox; 1157 int rc; 1158 1159 cmdiocb = (struct lpfc_iocbq *) arg; 1160 rspiocb = cmdiocb->context_un.rsp_iocb; 1161 1162 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1163 /* Recovery from PLOGI collision logic */ 1164 return ndlp->nlp_state; 1165 } 1166 1167 irsp = &rspiocb->iocb; 1168 1169 if (irsp->ulpStatus) 1170 goto out; 1171 1172 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1173 1174 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1175 if (!prsp) 1176 goto out; 1177 1178 lp = (uint32_t *) prsp->virt; 1179 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1180 1181 /* Some switches have FDMI servers returning 0 for WWN */ 1182 if ((ndlp->nlp_DID != FDMI_DID) && 1183 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1184 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1185 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1186 "0142 PLOGI RSP: Invalid WWN.\n"); 1187 goto out; 1188 } 1189 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1190 goto out; 1191 /* PLOGI chkparm OK */ 1192 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1193 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1194 ndlp->nlp_DID, ndlp->nlp_state, 1195 ndlp->nlp_flag, ndlp->nlp_rpi); 1196 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1197 ndlp->nlp_fcp_info |= CLASS2; 1198 else 1199 ndlp->nlp_fcp_info |= CLASS3; 1200 1201 ndlp->nlp_class_sup = 0; 1202 if (sp->cls1.classValid) 1203 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1204 if (sp->cls2.classValid) 1205 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1206 if (sp->cls3.classValid) 1207 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1208 if (sp->cls4.classValid) 1209 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1210 ndlp->nlp_maxframe = 1211 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1212 1213 if ((vport->fc_flag & FC_PT2PT) && 1214 (vport->fc_flag & FC_PT2PT_PLOGI)) { 1215 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1216 if (sp->cmn.edtovResolution) { 1217 /* E_D_TOV ticks are in nanoseconds */ 1218 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1219 } 1220 1221 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 1222 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1223 sp->cmn.valid_vendor_ver_level) { 1224 vid = be32_to_cpu(sp->un.vv.vid); 1225 flag = be32_to_cpu(sp->un.vv.flags); 1226 if ((vid == LPFC_VV_EMLX_ID) && 1227 (flag & LPFC_VV_SUPPRESS_RSP)) 1228 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 1229 } 1230 1231 /* 1232 * Use the larger EDTOV 1233 * RATOV = 2 * EDTOV for pt-to-pt 1234 */ 1235 if (ed_tov > phba->fc_edtov) 1236 phba->fc_edtov = ed_tov; 1237 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1238 1239 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1240 1241 /* Issue config_link / reg_vfi to account for updated TOV's */ 1242 if (phba->sli_rev == LPFC_SLI_REV4) { 1243 lpfc_issue_reg_vfi(vport); 1244 } else { 1245 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1246 if (!mbox) { 1247 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1248 "0133 PLOGI: no memory " 1249 "for config_link " 1250 "Data: x%x x%x x%x x%x\n", 1251 ndlp->nlp_DID, ndlp->nlp_state, 1252 ndlp->nlp_flag, ndlp->nlp_rpi); 1253 goto out; 1254 } 1255 1256 lpfc_config_link(phba, mbox); 1257 1258 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1259 mbox->vport = vport; 1260 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1261 if (rc == MBX_NOT_FINISHED) { 1262 mempool_free(mbox, phba->mbox_mem_pool); 1263 goto out; 1264 } 1265 } 1266 } 1267 1268 lpfc_unreg_rpi(vport, ndlp); 1269 1270 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1271 if (!mbox) { 1272 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1273 "0018 PLOGI: no memory for reg_login " 1274 "Data: x%x x%x x%x x%x\n", 1275 ndlp->nlp_DID, ndlp->nlp_state, 1276 ndlp->nlp_flag, ndlp->nlp_rpi); 1277 goto out; 1278 } 1279 1280 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID, 1281 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1282 switch (ndlp->nlp_DID) { 1283 case NameServer_DID: 1284 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1285 break; 1286 case FDMI_DID: 1287 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1288 break; 1289 default: 1290 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1291 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1292 } 1293 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1294 mbox->vport = vport; 1295 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1296 != MBX_NOT_FINISHED) { 1297 lpfc_nlp_set_state(vport, ndlp, 1298 NLP_STE_REG_LOGIN_ISSUE); 1299 return ndlp->nlp_state; 1300 } 1301 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1302 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1303 /* decrement node reference count to the failed mbox 1304 * command 1305 */ 1306 lpfc_nlp_put(ndlp); 1307 mp = (struct lpfc_dmabuf *)mbox->ctx_buf; 1308 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1309 kfree(mp); 1310 mempool_free(mbox, phba->mbox_mem_pool); 1311 1312 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1313 "0134 PLOGI: cannot issue reg_login " 1314 "Data: x%x x%x x%x x%x\n", 1315 ndlp->nlp_DID, ndlp->nlp_state, 1316 ndlp->nlp_flag, ndlp->nlp_rpi); 1317 } else { 1318 mempool_free(mbox, phba->mbox_mem_pool); 1319 1320 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1321 "0135 PLOGI: cannot format reg_login " 1322 "Data: x%x x%x x%x x%x\n", 1323 ndlp->nlp_DID, ndlp->nlp_state, 1324 ndlp->nlp_flag, ndlp->nlp_rpi); 1325 } 1326 1327 1328 out: 1329 if (ndlp->nlp_DID == NameServer_DID) { 1330 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1331 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1332 "0261 Cannot Register NameServer login\n"); 1333 } 1334 1335 /* 1336 ** In case the node reference counter does not go to zero, ensure that 1337 ** the stale state for the node is not processed. 1338 */ 1339 1340 ndlp->nlp_prev_state = ndlp->nlp_state; 1341 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1342 spin_lock_irq(shost->host_lock); 1343 ndlp->nlp_flag |= NLP_DEFER_RM; 1344 spin_unlock_irq(shost->host_lock); 1345 return NLP_STE_FREED_NODE; 1346 } 1347 1348 static uint32_t 1349 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1350 void *arg, uint32_t evt) 1351 { 1352 return ndlp->nlp_state; 1353 } 1354 1355 static uint32_t 1356 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1357 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1358 { 1359 struct lpfc_hba *phba; 1360 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1361 MAILBOX_t *mb = &pmb->u.mb; 1362 uint16_t rpi; 1363 1364 phba = vport->phba; 1365 /* Release the RPI */ 1366 if (!(phba->pport->load_flag & FC_UNLOADING) && 1367 !mb->mbxStatus) { 1368 rpi = pmb->u.mb.un.varWords[0]; 1369 lpfc_release_rpi(phba, vport, ndlp, rpi); 1370 } 1371 return ndlp->nlp_state; 1372 } 1373 1374 static uint32_t 1375 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1376 void *arg, uint32_t evt) 1377 { 1378 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1379 1380 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1381 spin_lock_irq(shost->host_lock); 1382 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1383 spin_unlock_irq(shost->host_lock); 1384 return ndlp->nlp_state; 1385 } else { 1386 /* software abort outstanding PLOGI */ 1387 lpfc_els_abort(vport->phba, ndlp); 1388 1389 lpfc_drop_node(vport, ndlp); 1390 return NLP_STE_FREED_NODE; 1391 } 1392 } 1393 1394 static uint32_t 1395 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1396 struct lpfc_nodelist *ndlp, 1397 void *arg, 1398 uint32_t evt) 1399 { 1400 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1401 struct lpfc_hba *phba = vport->phba; 1402 1403 /* Don't do anything that will mess up processing of the 1404 * previous RSCN. 1405 */ 1406 if (vport->fc_flag & FC_RSCN_DEFERRED) 1407 return ndlp->nlp_state; 1408 1409 /* software abort outstanding PLOGI */ 1410 lpfc_els_abort(phba, ndlp); 1411 1412 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1413 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1414 spin_lock_irq(shost->host_lock); 1415 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1416 spin_unlock_irq(shost->host_lock); 1417 1418 return ndlp->nlp_state; 1419 } 1420 1421 static uint32_t 1422 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1423 void *arg, uint32_t evt) 1424 { 1425 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1426 struct lpfc_hba *phba = vport->phba; 1427 struct lpfc_iocbq *cmdiocb; 1428 1429 /* software abort outstanding ADISC */ 1430 lpfc_els_abort(phba, ndlp); 1431 1432 cmdiocb = (struct lpfc_iocbq *) arg; 1433 1434 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1435 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1436 spin_lock_irq(shost->host_lock); 1437 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1438 spin_unlock_irq(shost->host_lock); 1439 if (vport->num_disc_nodes) 1440 lpfc_more_adisc(vport); 1441 } 1442 return ndlp->nlp_state; 1443 } 1444 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1445 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1446 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1447 1448 return ndlp->nlp_state; 1449 } 1450 1451 static uint32_t 1452 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1453 void *arg, uint32_t evt) 1454 { 1455 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1456 1457 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1458 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1459 return ndlp->nlp_state; 1460 } 1461 1462 static uint32_t 1463 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1464 void *arg, uint32_t evt) 1465 { 1466 struct lpfc_hba *phba = vport->phba; 1467 struct lpfc_iocbq *cmdiocb; 1468 1469 cmdiocb = (struct lpfc_iocbq *) arg; 1470 1471 /* software abort outstanding ADISC */ 1472 lpfc_els_abort(phba, ndlp); 1473 1474 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1475 return ndlp->nlp_state; 1476 } 1477 1478 static uint32_t 1479 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1480 struct lpfc_nodelist *ndlp, 1481 void *arg, uint32_t evt) 1482 { 1483 struct lpfc_iocbq *cmdiocb; 1484 1485 cmdiocb = (struct lpfc_iocbq *) arg; 1486 1487 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1488 return ndlp->nlp_state; 1489 } 1490 1491 static uint32_t 1492 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1493 void *arg, uint32_t evt) 1494 { 1495 struct lpfc_iocbq *cmdiocb; 1496 1497 cmdiocb = (struct lpfc_iocbq *) arg; 1498 1499 /* Treat like rcv logo */ 1500 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1501 return ndlp->nlp_state; 1502 } 1503 1504 static uint32_t 1505 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1506 struct lpfc_nodelist *ndlp, 1507 void *arg, uint32_t evt) 1508 { 1509 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1510 struct lpfc_hba *phba = vport->phba; 1511 struct lpfc_iocbq *cmdiocb, *rspiocb; 1512 IOCB_t *irsp; 1513 ADISC *ap; 1514 int rc; 1515 1516 cmdiocb = (struct lpfc_iocbq *) arg; 1517 rspiocb = cmdiocb->context_un.rsp_iocb; 1518 1519 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1520 irsp = &rspiocb->iocb; 1521 1522 if ((irsp->ulpStatus) || 1523 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1524 /* 1 sec timeout */ 1525 mod_timer(&ndlp->nlp_delayfunc, 1526 jiffies + msecs_to_jiffies(1000)); 1527 spin_lock_irq(shost->host_lock); 1528 ndlp->nlp_flag |= NLP_DELAY_TMO; 1529 spin_unlock_irq(shost->host_lock); 1530 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1531 1532 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name)); 1533 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name)); 1534 1535 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1536 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1537 lpfc_unreg_rpi(vport, ndlp); 1538 return ndlp->nlp_state; 1539 } 1540 1541 if (phba->sli_rev == LPFC_SLI_REV4) { 1542 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1543 if (rc) { 1544 /* Stay in state and retry. */ 1545 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1546 return ndlp->nlp_state; 1547 } 1548 } 1549 1550 if (ndlp->nlp_type & NLP_FCP_TARGET) { 1551 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1552 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1553 } else { 1554 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1555 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1556 } 1557 1558 return ndlp->nlp_state; 1559 } 1560 1561 static uint32_t 1562 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1563 void *arg, uint32_t evt) 1564 { 1565 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1566 1567 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1568 spin_lock_irq(shost->host_lock); 1569 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1570 spin_unlock_irq(shost->host_lock); 1571 return ndlp->nlp_state; 1572 } else { 1573 /* software abort outstanding ADISC */ 1574 lpfc_els_abort(vport->phba, ndlp); 1575 1576 lpfc_drop_node(vport, ndlp); 1577 return NLP_STE_FREED_NODE; 1578 } 1579 } 1580 1581 static uint32_t 1582 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1583 struct lpfc_nodelist *ndlp, 1584 void *arg, 1585 uint32_t evt) 1586 { 1587 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1588 struct lpfc_hba *phba = vport->phba; 1589 1590 /* Don't do anything that will mess up processing of the 1591 * previous RSCN. 1592 */ 1593 if (vport->fc_flag & FC_RSCN_DEFERRED) 1594 return ndlp->nlp_state; 1595 1596 /* software abort outstanding ADISC */ 1597 lpfc_els_abort(phba, ndlp); 1598 1599 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1600 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1601 spin_lock_irq(shost->host_lock); 1602 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1603 spin_unlock_irq(shost->host_lock); 1604 lpfc_disc_set_adisc(vport, ndlp); 1605 return ndlp->nlp_state; 1606 } 1607 1608 static uint32_t 1609 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1610 struct lpfc_nodelist *ndlp, 1611 void *arg, 1612 uint32_t evt) 1613 { 1614 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1615 1616 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1617 return ndlp->nlp_state; 1618 } 1619 1620 static uint32_t 1621 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1622 struct lpfc_nodelist *ndlp, 1623 void *arg, 1624 uint32_t evt) 1625 { 1626 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1627 struct ls_rjt stat; 1628 1629 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1630 return ndlp->nlp_state; 1631 } 1632 if (vport->phba->nvmet_support) { 1633 /* NVME Target mode. Handle and respond to the PRLI and 1634 * transition to UNMAPPED provided the RPI has completed 1635 * registration. 1636 */ 1637 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 1638 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1639 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1640 } else { 1641 /* RPI registration has not completed. Reject the PRLI 1642 * to prevent an illegal state transition when the 1643 * rpi registration does complete. 1644 */ 1645 memset(&stat, 0, sizeof(struct ls_rjt)); 1646 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1647 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1648 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1649 ndlp, NULL); 1650 return ndlp->nlp_state; 1651 } 1652 } else { 1653 /* Initiator mode. */ 1654 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1655 } 1656 return ndlp->nlp_state; 1657 } 1658 1659 static uint32_t 1660 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1661 struct lpfc_nodelist *ndlp, 1662 void *arg, 1663 uint32_t evt) 1664 { 1665 struct lpfc_hba *phba = vport->phba; 1666 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1667 LPFC_MBOXQ_t *mb; 1668 LPFC_MBOXQ_t *nextmb; 1669 struct lpfc_dmabuf *mp; 1670 struct lpfc_nodelist *ns_ndlp; 1671 1672 cmdiocb = (struct lpfc_iocbq *) arg; 1673 1674 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1675 if ((mb = phba->sli.mbox_active)) { 1676 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1677 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1678 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1679 lpfc_nlp_put(ndlp); 1680 mb->ctx_ndlp = NULL; 1681 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1682 } 1683 } 1684 1685 spin_lock_irq(&phba->hbalock); 1686 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1687 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1688 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1689 mp = (struct lpfc_dmabuf *)(mb->ctx_buf); 1690 if (mp) { 1691 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 1692 kfree(mp); 1693 } 1694 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1695 lpfc_nlp_put(ndlp); 1696 list_del(&mb->list); 1697 phba->sli.mboxq_cnt--; 1698 mempool_free(mb, phba->mbox_mem_pool); 1699 } 1700 } 1701 spin_unlock_irq(&phba->hbalock); 1702 1703 /* software abort if any GID_FT is outstanding */ 1704 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 1705 ns_ndlp = lpfc_findnode_did(vport, NameServer_DID); 1706 if (ns_ndlp && NLP_CHK_NODE_ACT(ns_ndlp)) 1707 lpfc_els_abort(phba, ns_ndlp); 1708 } 1709 1710 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1711 return ndlp->nlp_state; 1712 } 1713 1714 static uint32_t 1715 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1716 struct lpfc_nodelist *ndlp, 1717 void *arg, 1718 uint32_t evt) 1719 { 1720 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1721 1722 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1723 return ndlp->nlp_state; 1724 } 1725 1726 static uint32_t 1727 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1728 struct lpfc_nodelist *ndlp, 1729 void *arg, 1730 uint32_t evt) 1731 { 1732 struct lpfc_iocbq *cmdiocb; 1733 1734 cmdiocb = (struct lpfc_iocbq *) arg; 1735 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1736 return ndlp->nlp_state; 1737 } 1738 1739 static uint32_t 1740 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1741 struct lpfc_nodelist *ndlp, 1742 void *arg, 1743 uint32_t evt) 1744 { 1745 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1746 struct lpfc_hba *phba = vport->phba; 1747 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1748 MAILBOX_t *mb = &pmb->u.mb; 1749 uint32_t did = mb->un.varWords[1]; 1750 1751 if (mb->mbxStatus) { 1752 /* RegLogin failed */ 1753 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1754 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1755 "x%x\n", 1756 did, mb->mbxStatus, vport->port_state, 1757 mb->un.varRegLogin.vpi, 1758 mb->un.varRegLogin.rpi); 1759 /* 1760 * If RegLogin failed due to lack of HBA resources do not 1761 * retry discovery. 1762 */ 1763 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1764 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1765 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1766 return ndlp->nlp_state; 1767 } 1768 1769 /* Put ndlp in npr state set plogi timer for 1 sec */ 1770 mod_timer(&ndlp->nlp_delayfunc, 1771 jiffies + msecs_to_jiffies(1000 * 1)); 1772 spin_lock_irq(shost->host_lock); 1773 ndlp->nlp_flag |= NLP_DELAY_TMO; 1774 spin_unlock_irq(shost->host_lock); 1775 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1776 1777 lpfc_issue_els_logo(vport, ndlp, 0); 1778 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1779 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1780 return ndlp->nlp_state; 1781 } 1782 1783 /* SLI4 ports have preallocated logical rpis. */ 1784 if (phba->sli_rev < LPFC_SLI_REV4) 1785 ndlp->nlp_rpi = mb->un.varWords[0]; 1786 1787 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1788 1789 /* Only if we are not a fabric nport do we issue PRLI */ 1790 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1791 "3066 RegLogin Complete on x%x x%x x%x\n", 1792 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 1793 if (!(ndlp->nlp_type & NLP_FABRIC) && 1794 (phba->nvmet_support == 0)) { 1795 /* The driver supports FCP and NVME concurrently. If the 1796 * ndlp's nlp_fc4_type is still zero, the driver doesn't 1797 * know what PRLI to send yet. Figure that out now and 1798 * call PRLI depending on the outcome. 1799 */ 1800 if (vport->fc_flag & FC_PT2PT) { 1801 /* If we are pt2pt, there is no Fabric to determine 1802 * the FC4 type of the remote nport. So if NVME 1803 * is configured try it. 1804 */ 1805 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1806 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 1807 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1808 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1809 /* We need to update the localport also */ 1810 lpfc_nvme_update_localport(vport); 1811 } 1812 1813 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 1814 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1815 1816 } else if (ndlp->nlp_fc4_type == 0) { 1817 /* If we are only configured for FCP, the driver 1818 * should just issue PRLI for FCP. Otherwise issue 1819 * GFT_ID to determine if remote port supports NVME. 1820 */ 1821 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 1822 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0, 1823 ndlp->nlp_DID); 1824 return ndlp->nlp_state; 1825 } 1826 ndlp->nlp_fc4_type = NLP_FC4_FCP; 1827 } 1828 1829 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1830 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 1831 if (lpfc_issue_els_prli(vport, ndlp, 0)) { 1832 lpfc_issue_els_logo(vport, ndlp, 0); 1833 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1834 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1835 } 1836 } else { 1837 if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support) 1838 phba->targetport->port_id = vport->fc_myDID; 1839 1840 /* Only Fabric ports should transition. NVME target 1841 * must complete PRLI. 1842 */ 1843 if (ndlp->nlp_type & NLP_FABRIC) { 1844 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1845 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1846 } 1847 } 1848 return ndlp->nlp_state; 1849 } 1850 1851 static uint32_t 1852 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 1853 struct lpfc_nodelist *ndlp, 1854 void *arg, 1855 uint32_t evt) 1856 { 1857 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1858 1859 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1860 spin_lock_irq(shost->host_lock); 1861 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1862 spin_unlock_irq(shost->host_lock); 1863 return ndlp->nlp_state; 1864 } else { 1865 lpfc_drop_node(vport, ndlp); 1866 return NLP_STE_FREED_NODE; 1867 } 1868 } 1869 1870 static uint32_t 1871 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 1872 struct lpfc_nodelist *ndlp, 1873 void *arg, 1874 uint32_t evt) 1875 { 1876 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1877 1878 /* Don't do anything that will mess up processing of the 1879 * previous RSCN. 1880 */ 1881 if (vport->fc_flag & FC_RSCN_DEFERRED) 1882 return ndlp->nlp_state; 1883 1884 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1885 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1886 spin_lock_irq(shost->host_lock); 1887 1888 /* If we are a target we won't immediately transition into PRLI, 1889 * so if REG_LOGIN already completed we don't need to ignore it. 1890 */ 1891 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) || 1892 !vport->phba->nvmet_support) 1893 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 1894 1895 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1896 spin_unlock_irq(shost->host_lock); 1897 lpfc_disc_set_adisc(vport, ndlp); 1898 return ndlp->nlp_state; 1899 } 1900 1901 static uint32_t 1902 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1903 void *arg, uint32_t evt) 1904 { 1905 struct lpfc_iocbq *cmdiocb; 1906 1907 cmdiocb = (struct lpfc_iocbq *) arg; 1908 1909 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1910 return ndlp->nlp_state; 1911 } 1912 1913 static uint32_t 1914 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1915 void *arg, uint32_t evt) 1916 { 1917 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1918 1919 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1920 return ndlp->nlp_state; 1921 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1922 return ndlp->nlp_state; 1923 } 1924 1925 static uint32_t 1926 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1927 void *arg, uint32_t evt) 1928 { 1929 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1930 1931 /* Software abort outstanding PRLI before sending acc */ 1932 lpfc_els_abort(vport->phba, ndlp); 1933 1934 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1935 return ndlp->nlp_state; 1936 } 1937 1938 static uint32_t 1939 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1940 void *arg, uint32_t evt) 1941 { 1942 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1943 1944 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1945 return ndlp->nlp_state; 1946 } 1947 1948 /* This routine is envoked when we rcv a PRLO request from a nport 1949 * we are logged into. We should send back a PRLO rsp setting the 1950 * appropriate bits. 1951 * NEXT STATE = PRLI_ISSUE 1952 */ 1953 static uint32_t 1954 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1955 void *arg, uint32_t evt) 1956 { 1957 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1958 1959 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1960 return ndlp->nlp_state; 1961 } 1962 1963 static uint32_t 1964 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1965 void *arg, uint32_t evt) 1966 { 1967 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1968 struct lpfc_iocbq *cmdiocb, *rspiocb; 1969 struct lpfc_hba *phba = vport->phba; 1970 IOCB_t *irsp; 1971 PRLI *npr; 1972 struct lpfc_nvme_prli *nvpr; 1973 void *temp_ptr; 1974 1975 cmdiocb = (struct lpfc_iocbq *) arg; 1976 rspiocb = cmdiocb->context_un.rsp_iocb; 1977 1978 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 1979 * format is different so NULL the two PRLI types so that the 1980 * driver correctly gets the correct context. 1981 */ 1982 npr = NULL; 1983 nvpr = NULL; 1984 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1985 if (cmdiocb->iocb_flag & LPFC_PRLI_FCP_REQ) 1986 npr = (PRLI *) temp_ptr; 1987 else if (cmdiocb->iocb_flag & LPFC_PRLI_NVME_REQ) 1988 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 1989 1990 irsp = &rspiocb->iocb; 1991 if (irsp->ulpStatus) { 1992 if ((vport->port_type == LPFC_NPIV_PORT) && 1993 vport->cfg_restrict_login) { 1994 goto out; 1995 } 1996 1997 /* Adjust the nlp_type accordingly if the PRLI failed */ 1998 if (npr) 1999 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2000 if (nvpr) 2001 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 2002 2003 /* We can't set the DSM state till BOTH PRLIs complete */ 2004 goto out_err; 2005 } 2006 2007 if (npr && (npr->acceptRspCode == PRLI_REQ_EXECUTED) && 2008 (npr->prliType == PRLI_FCP_TYPE)) { 2009 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2010 "6028 FCP NPR PRLI Cmpl Init %d Target %d\n", 2011 npr->initiatorFunc, 2012 npr->targetFunc); 2013 if (npr->initiatorFunc) 2014 ndlp->nlp_type |= NLP_FCP_INITIATOR; 2015 if (npr->targetFunc) { 2016 ndlp->nlp_type |= NLP_FCP_TARGET; 2017 if (npr->writeXferRdyDis) 2018 ndlp->nlp_flag |= NLP_FIRSTBURST; 2019 } 2020 if (npr->Retry) 2021 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 2022 2023 } else if (nvpr && 2024 (bf_get_be32(prli_acc_rsp_code, nvpr) == 2025 PRLI_REQ_EXECUTED) && 2026 (bf_get_be32(prli_type_code, nvpr) == 2027 PRLI_NVME_TYPE)) { 2028 2029 /* Complete setting up the remote ndlp personality. */ 2030 if (bf_get_be32(prli_init, nvpr)) 2031 ndlp->nlp_type |= NLP_NVME_INITIATOR; 2032 2033 if (phba->nsler && bf_get_be32(prli_nsler, nvpr)) 2034 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 2035 else 2036 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 2037 2038 /* Target driver cannot solicit NVME FB. */ 2039 if (bf_get_be32(prli_tgt, nvpr)) { 2040 /* Complete the nvme target roles. The transport 2041 * needs to know if the rport is capable of 2042 * discovery in addition to its role. 2043 */ 2044 ndlp->nlp_type |= NLP_NVME_TARGET; 2045 if (bf_get_be32(prli_disc, nvpr)) 2046 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 2047 2048 /* 2049 * If prli_fba is set, the Target supports FirstBurst. 2050 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 2051 * otherwise it defines the actual size supported by 2052 * the NVME Target. 2053 */ 2054 if ((bf_get_be32(prli_fba, nvpr) == 1) && 2055 (phba->cfg_nvme_enable_fb) && 2056 (!phba->nvmet_support)) { 2057 /* Both sides support FB. The target's first 2058 * burst size is a 512 byte encoded value. 2059 */ 2060 ndlp->nlp_flag |= NLP_FIRSTBURST; 2061 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2062 nvpr); 2063 2064 /* Expressed in units of 512 bytes */ 2065 if (ndlp->nvme_fb_size) 2066 ndlp->nvme_fb_size <<= 2067 LPFC_NVME_FB_SHIFT; 2068 else 2069 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2070 } 2071 } 2072 2073 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2074 "6029 NVME PRLI Cmpl w1 x%08x " 2075 "w4 x%08x w5 x%08x flag x%x, " 2076 "fcp_info x%x nlp_type x%x\n", 2077 be32_to_cpu(nvpr->word1), 2078 be32_to_cpu(nvpr->word4), 2079 be32_to_cpu(nvpr->word5), 2080 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2081 ndlp->nlp_type); 2082 } 2083 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2084 (vport->port_type == LPFC_NPIV_PORT) && 2085 vport->cfg_restrict_login) { 2086 out: 2087 spin_lock_irq(shost->host_lock); 2088 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 2089 spin_unlock_irq(shost->host_lock); 2090 lpfc_issue_els_logo(vport, ndlp, 0); 2091 2092 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2093 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2094 return ndlp->nlp_state; 2095 } 2096 2097 out_err: 2098 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2099 * are complete. 2100 */ 2101 if (ndlp->fc4_prli_sent == 0) { 2102 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2103 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2104 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2105 else if (ndlp->nlp_type & 2106 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2107 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2108 } else 2109 lpfc_printf_vlog(vport, 2110 KERN_INFO, LOG_ELS, 2111 "3067 PRLI's still outstanding " 2112 "on x%06x - count %d, Pend Node Mode " 2113 "transition...\n", 2114 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2115 2116 return ndlp->nlp_state; 2117 } 2118 2119 /*! lpfc_device_rm_prli_issue 2120 * 2121 * \pre 2122 * \post 2123 * \param phba 2124 * \param ndlp 2125 * \param arg 2126 * \param evt 2127 * \return uint32_t 2128 * 2129 * \b Description: 2130 * This routine is envoked when we a request to remove a nport we are in the 2131 * process of PRLIing. We should software abort outstanding prli, unreg 2132 * login, send a logout. We will change node state to UNUSED_NODE, put it 2133 * on plogi list so it can be freed when LOGO completes. 2134 * 2135 */ 2136 2137 static uint32_t 2138 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2139 void *arg, uint32_t evt) 2140 { 2141 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2142 2143 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2144 spin_lock_irq(shost->host_lock); 2145 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2146 spin_unlock_irq(shost->host_lock); 2147 return ndlp->nlp_state; 2148 } else { 2149 /* software abort outstanding PLOGI */ 2150 lpfc_els_abort(vport->phba, ndlp); 2151 2152 lpfc_drop_node(vport, ndlp); 2153 return NLP_STE_FREED_NODE; 2154 } 2155 } 2156 2157 2158 /*! lpfc_device_recov_prli_issue 2159 * 2160 * \pre 2161 * \post 2162 * \param phba 2163 * \param ndlp 2164 * \param arg 2165 * \param evt 2166 * \return uint32_t 2167 * 2168 * \b Description: 2169 * The routine is envoked when the state of a device is unknown, like 2170 * during a link down. We should remove the nodelist entry from the 2171 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2172 * outstanding PRLI command, then free the node entry. 2173 */ 2174 static uint32_t 2175 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2176 struct lpfc_nodelist *ndlp, 2177 void *arg, 2178 uint32_t evt) 2179 { 2180 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2181 struct lpfc_hba *phba = vport->phba; 2182 2183 /* Don't do anything that will mess up processing of the 2184 * previous RSCN. 2185 */ 2186 if (vport->fc_flag & FC_RSCN_DEFERRED) 2187 return ndlp->nlp_state; 2188 2189 /* software abort outstanding PRLI */ 2190 lpfc_els_abort(phba, ndlp); 2191 2192 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2193 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2194 spin_lock_irq(shost->host_lock); 2195 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2196 spin_unlock_irq(shost->host_lock); 2197 lpfc_disc_set_adisc(vport, ndlp); 2198 return ndlp->nlp_state; 2199 } 2200 2201 static uint32_t 2202 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2203 void *arg, uint32_t evt) 2204 { 2205 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2206 struct ls_rjt stat; 2207 2208 memset(&stat, 0, sizeof(struct ls_rjt)); 2209 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2210 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2211 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2212 return ndlp->nlp_state; 2213 } 2214 2215 static uint32_t 2216 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2217 void *arg, uint32_t evt) 2218 { 2219 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2220 struct ls_rjt stat; 2221 2222 memset(&stat, 0, sizeof(struct ls_rjt)); 2223 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2224 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2225 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2226 return ndlp->nlp_state; 2227 } 2228 2229 static uint32_t 2230 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2231 void *arg, uint32_t evt) 2232 { 2233 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2234 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2235 2236 spin_lock_irq(shost->host_lock); 2237 ndlp->nlp_flag |= NLP_LOGO_ACC; 2238 spin_unlock_irq(shost->host_lock); 2239 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2240 return ndlp->nlp_state; 2241 } 2242 2243 static uint32_t 2244 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2245 void *arg, uint32_t evt) 2246 { 2247 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2248 struct ls_rjt stat; 2249 2250 memset(&stat, 0, sizeof(struct ls_rjt)); 2251 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2252 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2253 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2254 return ndlp->nlp_state; 2255 } 2256 2257 static uint32_t 2258 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2259 void *arg, uint32_t evt) 2260 { 2261 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2262 struct ls_rjt stat; 2263 2264 memset(&stat, 0, sizeof(struct ls_rjt)); 2265 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2266 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2267 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2268 return ndlp->nlp_state; 2269 } 2270 2271 static uint32_t 2272 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2273 void *arg, uint32_t evt) 2274 { 2275 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2276 2277 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2278 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2279 spin_lock_irq(shost->host_lock); 2280 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2281 spin_unlock_irq(shost->host_lock); 2282 lpfc_disc_set_adisc(vport, ndlp); 2283 return ndlp->nlp_state; 2284 } 2285 2286 static uint32_t 2287 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2288 void *arg, uint32_t evt) 2289 { 2290 /* 2291 * DevLoss has timed out and is calling for Device Remove. 2292 * In this case, abort the LOGO and cleanup the ndlp 2293 */ 2294 2295 lpfc_unreg_rpi(vport, ndlp); 2296 /* software abort outstanding PLOGI */ 2297 lpfc_els_abort(vport->phba, ndlp); 2298 lpfc_drop_node(vport, ndlp); 2299 return NLP_STE_FREED_NODE; 2300 } 2301 2302 static uint32_t 2303 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2304 struct lpfc_nodelist *ndlp, 2305 void *arg, uint32_t evt) 2306 { 2307 /* 2308 * Device Recovery events have no meaning for a node with a LOGO 2309 * outstanding. The LOGO has to complete first and handle the 2310 * node from that point. 2311 */ 2312 return ndlp->nlp_state; 2313 } 2314 2315 static uint32_t 2316 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2317 void *arg, uint32_t evt) 2318 { 2319 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2320 2321 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2322 return ndlp->nlp_state; 2323 } 2324 2325 static uint32_t 2326 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2327 void *arg, uint32_t evt) 2328 { 2329 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2330 2331 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2332 return ndlp->nlp_state; 2333 2334 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2335 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2336 return ndlp->nlp_state; 2337 } 2338 2339 static uint32_t 2340 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2341 void *arg, uint32_t evt) 2342 { 2343 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2344 2345 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2346 return ndlp->nlp_state; 2347 } 2348 2349 static uint32_t 2350 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2351 void *arg, uint32_t evt) 2352 { 2353 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2354 2355 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2356 return ndlp->nlp_state; 2357 } 2358 2359 static uint32_t 2360 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2361 void *arg, uint32_t evt) 2362 { 2363 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2364 2365 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2366 return ndlp->nlp_state; 2367 } 2368 2369 static uint32_t 2370 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2371 struct lpfc_nodelist *ndlp, 2372 void *arg, 2373 uint32_t evt) 2374 { 2375 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2376 2377 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2378 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2379 spin_lock_irq(shost->host_lock); 2380 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2381 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2382 spin_unlock_irq(shost->host_lock); 2383 lpfc_disc_set_adisc(vport, ndlp); 2384 2385 return ndlp->nlp_state; 2386 } 2387 2388 static uint32_t 2389 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2390 void *arg, uint32_t evt) 2391 { 2392 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2393 2394 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2395 return ndlp->nlp_state; 2396 } 2397 2398 static uint32_t 2399 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2400 void *arg, uint32_t evt) 2401 { 2402 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2403 2404 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2405 return ndlp->nlp_state; 2406 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2407 return ndlp->nlp_state; 2408 } 2409 2410 static uint32_t 2411 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2412 void *arg, uint32_t evt) 2413 { 2414 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2415 2416 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2417 return ndlp->nlp_state; 2418 } 2419 2420 static uint32_t 2421 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2422 struct lpfc_nodelist *ndlp, 2423 void *arg, uint32_t evt) 2424 { 2425 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2426 2427 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2428 return ndlp->nlp_state; 2429 } 2430 2431 static uint32_t 2432 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2433 void *arg, uint32_t evt) 2434 { 2435 struct lpfc_hba *phba = vport->phba; 2436 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2437 2438 /* flush the target */ 2439 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], 2440 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2441 2442 /* Treat like rcv logo */ 2443 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2444 return ndlp->nlp_state; 2445 } 2446 2447 static uint32_t 2448 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2449 struct lpfc_nodelist *ndlp, 2450 void *arg, 2451 uint32_t evt) 2452 { 2453 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2454 2455 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2456 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2457 spin_lock_irq(shost->host_lock); 2458 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2459 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2460 spin_unlock_irq(shost->host_lock); 2461 lpfc_disc_set_adisc(vport, ndlp); 2462 return ndlp->nlp_state; 2463 } 2464 2465 static uint32_t 2466 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2467 void *arg, uint32_t evt) 2468 { 2469 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2470 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2471 2472 /* Ignore PLOGI if we have an outstanding LOGO */ 2473 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2474 return ndlp->nlp_state; 2475 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2476 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2477 spin_lock_irq(shost->host_lock); 2478 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2479 spin_unlock_irq(shost->host_lock); 2480 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2481 /* send PLOGI immediately, move to PLOGI issue state */ 2482 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2483 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2484 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2485 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2486 } 2487 } 2488 return ndlp->nlp_state; 2489 } 2490 2491 static uint32_t 2492 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2493 void *arg, uint32_t evt) 2494 { 2495 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2496 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2497 struct ls_rjt stat; 2498 2499 memset(&stat, 0, sizeof (struct ls_rjt)); 2500 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2501 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2502 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2503 2504 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2505 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2506 spin_lock_irq(shost->host_lock); 2507 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2508 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2509 spin_unlock_irq(shost->host_lock); 2510 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2511 lpfc_issue_els_adisc(vport, ndlp, 0); 2512 } else { 2513 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2514 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2515 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2516 } 2517 } 2518 return ndlp->nlp_state; 2519 } 2520 2521 static uint32_t 2522 lpfc_rcv_logo_npr_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_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2528 return ndlp->nlp_state; 2529 } 2530 2531 static uint32_t 2532 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2533 void *arg, uint32_t evt) 2534 { 2535 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2536 2537 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2538 /* 2539 * Do not start discovery if discovery is about to start 2540 * or discovery in progress for this node. Starting discovery 2541 * here will affect the counting of discovery threads. 2542 */ 2543 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2544 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2545 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2546 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2547 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2548 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2549 lpfc_issue_els_adisc(vport, ndlp, 0); 2550 } else { 2551 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2552 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2553 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2554 } 2555 } 2556 return ndlp->nlp_state; 2557 } 2558 2559 static uint32_t 2560 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2561 void *arg, uint32_t evt) 2562 { 2563 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2564 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2565 2566 spin_lock_irq(shost->host_lock); 2567 ndlp->nlp_flag |= NLP_LOGO_ACC; 2568 spin_unlock_irq(shost->host_lock); 2569 2570 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2571 2572 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2573 mod_timer(&ndlp->nlp_delayfunc, 2574 jiffies + msecs_to_jiffies(1000 * 1)); 2575 spin_lock_irq(shost->host_lock); 2576 ndlp->nlp_flag |= NLP_DELAY_TMO; 2577 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2578 spin_unlock_irq(shost->host_lock); 2579 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2580 } else { 2581 spin_lock_irq(shost->host_lock); 2582 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2583 spin_unlock_irq(shost->host_lock); 2584 } 2585 return ndlp->nlp_state; 2586 } 2587 2588 static uint32_t 2589 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2590 void *arg, uint32_t evt) 2591 { 2592 struct lpfc_iocbq *cmdiocb, *rspiocb; 2593 IOCB_t *irsp; 2594 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2595 2596 cmdiocb = (struct lpfc_iocbq *) arg; 2597 rspiocb = cmdiocb->context_un.rsp_iocb; 2598 2599 irsp = &rspiocb->iocb; 2600 if (irsp->ulpStatus) { 2601 spin_lock_irq(shost->host_lock); 2602 ndlp->nlp_flag |= NLP_DEFER_RM; 2603 spin_unlock_irq(shost->host_lock); 2604 return NLP_STE_FREED_NODE; 2605 } 2606 return ndlp->nlp_state; 2607 } 2608 2609 static uint32_t 2610 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2611 void *arg, uint32_t evt) 2612 { 2613 struct lpfc_iocbq *cmdiocb, *rspiocb; 2614 IOCB_t *irsp; 2615 2616 cmdiocb = (struct lpfc_iocbq *) arg; 2617 rspiocb = cmdiocb->context_un.rsp_iocb; 2618 2619 irsp = &rspiocb->iocb; 2620 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2621 lpfc_drop_node(vport, ndlp); 2622 return NLP_STE_FREED_NODE; 2623 } 2624 return ndlp->nlp_state; 2625 } 2626 2627 static uint32_t 2628 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2629 void *arg, uint32_t evt) 2630 { 2631 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2632 2633 /* For the fabric port just clear the fc flags. */ 2634 if (ndlp->nlp_DID == Fabric_DID) { 2635 spin_lock_irq(shost->host_lock); 2636 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2637 spin_unlock_irq(shost->host_lock); 2638 } 2639 lpfc_unreg_rpi(vport, ndlp); 2640 return ndlp->nlp_state; 2641 } 2642 2643 static uint32_t 2644 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2645 void *arg, uint32_t evt) 2646 { 2647 struct lpfc_iocbq *cmdiocb, *rspiocb; 2648 IOCB_t *irsp; 2649 2650 cmdiocb = (struct lpfc_iocbq *) arg; 2651 rspiocb = cmdiocb->context_un.rsp_iocb; 2652 2653 irsp = &rspiocb->iocb; 2654 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2655 lpfc_drop_node(vport, ndlp); 2656 return NLP_STE_FREED_NODE; 2657 } 2658 return ndlp->nlp_state; 2659 } 2660 2661 static uint32_t 2662 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2663 struct lpfc_nodelist *ndlp, 2664 void *arg, uint32_t evt) 2665 { 2666 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2667 MAILBOX_t *mb = &pmb->u.mb; 2668 2669 if (!mb->mbxStatus) { 2670 /* SLI4 ports have preallocated logical rpis. */ 2671 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2672 ndlp->nlp_rpi = mb->un.varWords[0]; 2673 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2674 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 2675 lpfc_unreg_rpi(vport, ndlp); 2676 } 2677 } else { 2678 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2679 lpfc_drop_node(vport, ndlp); 2680 return NLP_STE_FREED_NODE; 2681 } 2682 } 2683 return ndlp->nlp_state; 2684 } 2685 2686 static uint32_t 2687 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2688 void *arg, uint32_t evt) 2689 { 2690 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2691 2692 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2693 spin_lock_irq(shost->host_lock); 2694 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2695 spin_unlock_irq(shost->host_lock); 2696 return ndlp->nlp_state; 2697 } 2698 lpfc_drop_node(vport, ndlp); 2699 return NLP_STE_FREED_NODE; 2700 } 2701 2702 static uint32_t 2703 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2704 void *arg, uint32_t evt) 2705 { 2706 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2707 2708 /* Don't do anything that will mess up processing of the 2709 * previous RSCN. 2710 */ 2711 if (vport->fc_flag & FC_RSCN_DEFERRED) 2712 return ndlp->nlp_state; 2713 2714 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2715 spin_lock_irq(shost->host_lock); 2716 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2717 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2718 spin_unlock_irq(shost->host_lock); 2719 return ndlp->nlp_state; 2720 } 2721 2722 2723 /* This next section defines the NPort Discovery State Machine */ 2724 2725 /* There are 4 different double linked lists nodelist entries can reside on. 2726 * The plogi list and adisc list are used when Link Up discovery or RSCN 2727 * processing is needed. Each list holds the nodes that we will send PLOGI 2728 * or ADISC on. These lists will keep track of what nodes will be effected 2729 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2730 * The unmapped_list will contain all nodes that we have successfully logged 2731 * into at the Fibre Channel level. The mapped_list will contain all nodes 2732 * that are mapped FCP targets. 2733 */ 2734 /* 2735 * The bind list is a list of undiscovered (potentially non-existent) nodes 2736 * that we have saved binding information on. This information is used when 2737 * nodes transition from the unmapped to the mapped list. 2738 */ 2739 /* For UNUSED_NODE state, the node has just been allocated . 2740 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2741 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2742 * and put on the unmapped list. For ADISC processing, the node is taken off 2743 * the ADISC list and placed on either the mapped or unmapped list (depending 2744 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2745 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2746 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2747 * node, the node is taken off the unmapped list. The binding list is checked 2748 * for a valid binding, or a binding is automatically assigned. If binding 2749 * assignment is unsuccessful, the node is left on the unmapped list. If 2750 * binding assignment is successful, the associated binding list entry (if 2751 * any) is removed, and the node is placed on the mapped list. 2752 */ 2753 /* 2754 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2755 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2756 * expire, all effected nodes will receive a DEVICE_RM event. 2757 */ 2758 /* 2759 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2760 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2761 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2762 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2763 * we will first process the ADISC list. 32 entries are processed initially and 2764 * ADISC is initited for each one. Completions / Events for each node are 2765 * funnelled thru the state machine. As each node finishes ADISC processing, it 2766 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2767 * waiting, and the ADISC list count is identically 0, then we are done. For 2768 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2769 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2770 * list. 32 entries are processed initially and PLOGI is initited for each one. 2771 * Completions / Events for each node are funnelled thru the state machine. As 2772 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2773 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2774 * indentically 0, then we are done. We have now completed discovery / RSCN 2775 * handling. Upon completion, ALL nodes should be on either the mapped or 2776 * unmapped lists. 2777 */ 2778 2779 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2780 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2781 /* Action routine Event Current State */ 2782 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2783 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2784 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2785 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2786 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2787 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2788 lpfc_disc_illegal, /* CMPL_PLOGI */ 2789 lpfc_disc_illegal, /* CMPL_PRLI */ 2790 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2791 lpfc_disc_illegal, /* CMPL_ADISC */ 2792 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2793 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2794 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2795 2796 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2797 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2798 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2799 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2800 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2801 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2802 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2803 lpfc_disc_illegal, /* CMPL_PRLI */ 2804 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2805 lpfc_disc_illegal, /* CMPL_ADISC */ 2806 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2807 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2808 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2809 2810 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2811 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 2812 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 2813 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 2814 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 2815 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 2816 lpfc_disc_illegal, /* CMPL_PLOGI */ 2817 lpfc_disc_illegal, /* CMPL_PRLI */ 2818 lpfc_disc_illegal, /* CMPL_LOGO */ 2819 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 2820 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2821 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 2822 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 2823 2824 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 2825 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 2826 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 2827 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 2828 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 2829 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 2830 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2831 lpfc_disc_illegal, /* CMPL_PRLI */ 2832 lpfc_disc_illegal, /* CMPL_LOGO */ 2833 lpfc_disc_illegal, /* CMPL_ADISC */ 2834 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 2835 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 2836 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 2837 2838 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 2839 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 2840 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 2841 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 2842 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 2843 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 2844 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2845 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 2846 lpfc_disc_illegal, /* CMPL_LOGO */ 2847 lpfc_disc_illegal, /* CMPL_ADISC */ 2848 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2849 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 2850 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 2851 2852 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 2853 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 2854 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 2855 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 2856 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 2857 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 2858 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2859 lpfc_disc_illegal, /* CMPL_PRLI */ 2860 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 2861 lpfc_disc_illegal, /* CMPL_ADISC */ 2862 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2863 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 2864 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 2865 2866 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 2867 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 2868 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 2869 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 2870 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 2871 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 2872 lpfc_disc_illegal, /* CMPL_PLOGI */ 2873 lpfc_disc_illegal, /* CMPL_PRLI */ 2874 lpfc_disc_illegal, /* CMPL_LOGO */ 2875 lpfc_disc_illegal, /* CMPL_ADISC */ 2876 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2877 lpfc_disc_illegal, /* DEVICE_RM */ 2878 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 2879 2880 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 2881 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 2882 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 2883 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 2884 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 2885 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 2886 lpfc_disc_illegal, /* CMPL_PLOGI */ 2887 lpfc_disc_illegal, /* CMPL_PRLI */ 2888 lpfc_disc_illegal, /* CMPL_LOGO */ 2889 lpfc_disc_illegal, /* CMPL_ADISC */ 2890 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2891 lpfc_disc_illegal, /* DEVICE_RM */ 2892 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 2893 2894 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 2895 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 2896 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 2897 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 2898 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 2899 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 2900 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 2901 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 2902 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 2903 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 2904 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 2905 lpfc_device_rm_npr_node, /* DEVICE_RM */ 2906 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 2907 }; 2908 2909 int 2910 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2911 void *arg, uint32_t evt) 2912 { 2913 uint32_t cur_state, rc; 2914 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 2915 uint32_t); 2916 uint32_t got_ndlp = 0; 2917 uint32_t data1; 2918 2919 if (lpfc_nlp_get(ndlp)) 2920 got_ndlp = 1; 2921 2922 cur_state = ndlp->nlp_state; 2923 2924 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 2925 ((uint32_t)ndlp->nlp_type)); 2926 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 2927 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2928 "0211 DSM in event x%x on NPort x%x in " 2929 "state %d rpi x%x Data: x%x x%x\n", 2930 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, 2931 ndlp->nlp_flag, data1); 2932 2933 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2934 "DSM in: evt:%d ste:%d did:x%x", 2935 evt, cur_state, ndlp->nlp_DID); 2936 2937 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 2938 rc = (func) (vport, ndlp, arg, evt); 2939 2940 /* DSM out state <rc> on NPort <nlp_DID> */ 2941 if (got_ndlp) { 2942 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 2943 ((uint32_t)ndlp->nlp_type)); 2944 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2945 "0212 DSM out state %d on NPort x%x " 2946 "rpi x%x Data: x%x x%x\n", 2947 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag, 2948 data1); 2949 2950 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2951 "DSM out: ste:%d did:x%x flg:x%x", 2952 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2953 /* Decrement the ndlp reference count held for this function */ 2954 lpfc_nlp_put(ndlp); 2955 } else { 2956 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2957 "0213 DSM out state %d on NPort free\n", rc); 2958 2959 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2960 "DSM out: ste:%d did:x%x flg:x%x", 2961 rc, 0, 0); 2962 } 2963 2964 return rc; 2965 } 2966