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 case NLP_STE_REG_LOGIN_ISSUE: 364 case NLP_STE_PRLI_ISSUE: 365 case NLP_STE_UNMAPPED_NODE: 366 case NLP_STE_MAPPED_NODE: 367 /* For initiators, lpfc_plogi_confirm_nport skips fabric did. 368 * For target mode, execute implicit logo. 369 * Fabric nodes go into NPR. 370 */ 371 if (!(ndlp->nlp_type & NLP_FABRIC) && 372 !(phba->nvmet_support)) { 373 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 374 ndlp, NULL); 375 return 1; 376 } 377 if (nlp_portwwn != 0 && 378 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 379 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 380 "0143 PLOGI recv'd from DID: x%x " 381 "WWPN changed: old %llx new %llx\n", 382 ndlp->nlp_DID, 383 (unsigned long long)nlp_portwwn, 384 (unsigned long long) 385 wwn_to_u64(sp->portName.u.wwn)); 386 387 ndlp->nlp_prev_state = ndlp->nlp_state; 388 /* rport needs to be unregistered first */ 389 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 390 break; 391 } 392 393 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 394 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 395 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 396 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 397 398 /* Check for Nport to NPort pt2pt protocol */ 399 if ((vport->fc_flag & FC_PT2PT) && 400 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 401 /* rcv'ed PLOGI decides what our NPortId will be */ 402 vport->fc_myDID = icmd->un.rcvels.parmRo; 403 404 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 405 if (sp->cmn.edtovResolution) { 406 /* E_D_TOV ticks are in nanoseconds */ 407 ed_tov = (phba->fc_edtov + 999999) / 1000000; 408 } 409 410 /* 411 * For pt-to-pt, use the larger EDTOV 412 * RATOV = 2 * EDTOV 413 */ 414 if (ed_tov > phba->fc_edtov) 415 phba->fc_edtov = ed_tov; 416 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 417 418 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 419 420 /* Issue config_link / reg_vfi to account for updated TOV's */ 421 422 if (phba->sli_rev == LPFC_SLI_REV4) 423 lpfc_issue_reg_vfi(vport); 424 else { 425 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 426 if (mbox == NULL) 427 goto out; 428 lpfc_config_link(phba, mbox); 429 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 430 mbox->vport = vport; 431 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 432 if (rc == MBX_NOT_FINISHED) { 433 mempool_free(mbox, phba->mbox_mem_pool); 434 goto out; 435 } 436 } 437 438 lpfc_can_disctmo(vport); 439 } 440 441 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 442 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 443 sp->cmn.valid_vendor_ver_level) { 444 vid = be32_to_cpu(sp->un.vv.vid); 445 flag = be32_to_cpu(sp->un.vv.flags); 446 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) 447 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 448 } 449 450 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 451 if (!mbox) 452 goto out; 453 454 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 455 if (phba->sli_rev == LPFC_SLI_REV4) 456 lpfc_unreg_rpi(vport, ndlp); 457 458 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID, 459 (uint8_t *) sp, mbox, ndlp->nlp_rpi); 460 if (rc) { 461 mempool_free(mbox, phba->mbox_mem_pool); 462 goto out; 463 } 464 465 /* ACC PLOGI rsp command needs to execute first, 466 * queue this mbox command to be processed later. 467 */ 468 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 469 /* 470 * mbox->ctx_ndlp = lpfc_nlp_get(ndlp) deferred until mailbox 471 * command issued in lpfc_cmpl_els_acc(). 472 */ 473 mbox->vport = vport; 474 spin_lock_irq(shost->host_lock); 475 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 476 spin_unlock_irq(shost->host_lock); 477 478 /* 479 * If there is an outstanding PLOGI issued, abort it before 480 * sending ACC rsp for received PLOGI. If pending plogi 481 * is not canceled here, the plogi will be rejected by 482 * remote port and will be retried. On a configuration with 483 * single discovery thread, this will cause a huge delay in 484 * discovery. Also this will cause multiple state machines 485 * running in parallel for this node. 486 */ 487 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) { 488 /* software abort outstanding PLOGI */ 489 lpfc_els_abort(phba, ndlp); 490 } 491 492 if ((vport->port_type == LPFC_NPIV_PORT && 493 vport->cfg_restrict_login)) { 494 495 /* In order to preserve RPIs, we want to cleanup 496 * the default RPI the firmware created to rcv 497 * this ELS request. The only way to do this is 498 * to register, then unregister the RPI. 499 */ 500 spin_lock_irq(shost->host_lock); 501 ndlp->nlp_flag |= NLP_RM_DFLT_RPI; 502 spin_unlock_irq(shost->host_lock); 503 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 504 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 505 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 506 ndlp, mbox); 507 if (rc) 508 mempool_free(mbox, phba->mbox_mem_pool); 509 return 1; 510 } 511 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox); 512 if (rc) 513 mempool_free(mbox, phba->mbox_mem_pool); 514 return 1; 515 out: 516 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 517 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 518 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 519 return 0; 520 } 521 522 /** 523 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 524 * @phba: pointer to lpfc hba data structure. 525 * @mboxq: pointer to mailbox object 526 * 527 * This routine is invoked to issue a completion to a rcv'ed 528 * ADISC or PDISC after the paused RPI has been resumed. 529 **/ 530 static void 531 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 532 { 533 struct lpfc_vport *vport; 534 struct lpfc_iocbq *elsiocb; 535 struct lpfc_nodelist *ndlp; 536 uint32_t cmd; 537 538 elsiocb = (struct lpfc_iocbq *)mboxq->ctx_buf; 539 ndlp = (struct lpfc_nodelist *)mboxq->ctx_ndlp; 540 vport = mboxq->vport; 541 cmd = elsiocb->drvrTimeout; 542 543 if (cmd == ELS_CMD_ADISC) { 544 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 545 } else { 546 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 547 ndlp, NULL); 548 } 549 kfree(elsiocb); 550 mempool_free(mboxq, phba->mbox_mem_pool); 551 } 552 553 static int 554 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 555 struct lpfc_iocbq *cmdiocb) 556 { 557 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 558 struct lpfc_iocbq *elsiocb; 559 struct lpfc_dmabuf *pcmd; 560 struct serv_parm *sp; 561 struct lpfc_name *pnn, *ppn; 562 struct ls_rjt stat; 563 ADISC *ap; 564 IOCB_t *icmd; 565 uint32_t *lp; 566 uint32_t cmd; 567 568 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 569 lp = (uint32_t *) pcmd->virt; 570 571 cmd = *lp++; 572 if (cmd == ELS_CMD_ADISC) { 573 ap = (ADISC *) lp; 574 pnn = (struct lpfc_name *) & ap->nodeName; 575 ppn = (struct lpfc_name *) & ap->portName; 576 } else { 577 sp = (struct serv_parm *) lp; 578 pnn = (struct lpfc_name *) & sp->nodeName; 579 ppn = (struct lpfc_name *) & sp->portName; 580 } 581 582 icmd = &cmdiocb->iocb; 583 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 584 585 /* 586 * As soon as we send ACC, the remote NPort can 587 * start sending us data. Thus, for SLI4 we must 588 * resume the RPI before the ACC goes out. 589 */ 590 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 591 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 592 GFP_KERNEL); 593 if (elsiocb) { 594 595 /* Save info from cmd IOCB used in rsp */ 596 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 597 sizeof(struct lpfc_iocbq)); 598 599 /* Save the ELS cmd */ 600 elsiocb->drvrTimeout = cmd; 601 602 lpfc_sli4_resume_rpi(ndlp, 603 lpfc_mbx_cmpl_resume_rpi, elsiocb); 604 goto out; 605 } 606 } 607 608 if (cmd == ELS_CMD_ADISC) { 609 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 610 } else { 611 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 612 ndlp, NULL); 613 } 614 out: 615 /* If we are authenticated, move to the proper state */ 616 if (ndlp->nlp_type & NLP_FCP_TARGET) 617 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 618 else 619 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 620 621 return 1; 622 } 623 /* Reject this request because invalid parameters */ 624 stat.un.b.lsRjtRsvd0 = 0; 625 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 626 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 627 stat.un.b.vendorUnique = 0; 628 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 629 630 /* 1 sec timeout */ 631 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 632 633 spin_lock_irq(shost->host_lock); 634 ndlp->nlp_flag |= NLP_DELAY_TMO; 635 spin_unlock_irq(shost->host_lock); 636 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 637 ndlp->nlp_prev_state = ndlp->nlp_state; 638 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 639 return 0; 640 } 641 642 static int 643 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 644 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 645 { 646 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 647 struct lpfc_hba *phba = vport->phba; 648 struct lpfc_vport **vports; 649 int i, active_vlink_present = 0 ; 650 651 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 652 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 653 * PLOGIs during LOGO storms from a device. 654 */ 655 spin_lock_irq(shost->host_lock); 656 ndlp->nlp_flag |= NLP_LOGO_ACC; 657 spin_unlock_irq(shost->host_lock); 658 if (els_cmd == ELS_CMD_PRLO) 659 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 660 else 661 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 662 if (ndlp->nlp_DID == Fabric_DID) { 663 if (vport->port_state <= LPFC_FDISC) 664 goto out; 665 lpfc_linkdown_port(vport); 666 spin_lock_irq(shost->host_lock); 667 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 668 spin_unlock_irq(shost->host_lock); 669 vports = lpfc_create_vport_work_array(phba); 670 if (vports) { 671 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 672 i++) { 673 if ((!(vports[i]->fc_flag & 674 FC_VPORT_LOGO_RCVD)) && 675 (vports[i]->port_state > LPFC_FDISC)) { 676 active_vlink_present = 1; 677 break; 678 } 679 } 680 lpfc_destroy_vport_work_array(phba, vports); 681 } 682 683 /* 684 * Don't re-instantiate if vport is marked for deletion. 685 * If we are here first then vport_delete is going to wait 686 * for discovery to complete. 687 */ 688 if (!(vport->load_flag & FC_UNLOADING) && 689 active_vlink_present) { 690 /* 691 * If there are other active VLinks present, 692 * re-instantiate the Vlink using FDISC. 693 */ 694 mod_timer(&ndlp->nlp_delayfunc, 695 jiffies + msecs_to_jiffies(1000)); 696 spin_lock_irq(shost->host_lock); 697 ndlp->nlp_flag |= NLP_DELAY_TMO; 698 spin_unlock_irq(shost->host_lock); 699 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 700 vport->port_state = LPFC_FDISC; 701 } else { 702 spin_lock_irq(shost->host_lock); 703 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 704 spin_unlock_irq(shost->host_lock); 705 lpfc_retry_pport_discovery(phba); 706 } 707 } else if ((!(ndlp->nlp_type & NLP_FABRIC) && 708 ((ndlp->nlp_type & NLP_FCP_TARGET) || 709 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) || 710 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { 711 /* Only try to re-login if this is NOT a Fabric Node */ 712 mod_timer(&ndlp->nlp_delayfunc, 713 jiffies + msecs_to_jiffies(1000 * 1)); 714 spin_lock_irq(shost->host_lock); 715 ndlp->nlp_flag |= NLP_DELAY_TMO; 716 spin_unlock_irq(shost->host_lock); 717 718 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 719 } 720 out: 721 ndlp->nlp_prev_state = ndlp->nlp_state; 722 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 723 724 spin_lock_irq(shost->host_lock); 725 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 726 spin_unlock_irq(shost->host_lock); 727 /* The driver has to wait until the ACC completes before it continues 728 * processing the LOGO. The action will resume in 729 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 730 * unreg_login, the driver waits so the ACC does not get aborted. 731 */ 732 return 0; 733 } 734 735 static uint32_t 736 lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 737 struct lpfc_nodelist *ndlp, 738 struct lpfc_iocbq *cmdiocb) 739 { 740 struct ls_rjt stat; 741 uint32_t *payload; 742 uint32_t cmd; 743 744 payload = ((struct lpfc_dmabuf *)cmdiocb->context2)->virt; 745 cmd = *payload; 746 if (vport->phba->nvmet_support) { 747 /* Must be a NVME PRLI */ 748 if (cmd == ELS_CMD_PRLI) 749 goto out; 750 } else { 751 /* Initiator mode. */ 752 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 753 goto out; 754 } 755 return 1; 756 out: 757 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC, 758 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 759 "state x%x flags x%x\n", 760 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 761 ndlp->nlp_flag); 762 memset(&stat, 0, sizeof(struct ls_rjt)); 763 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 764 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 765 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 766 ndlp, NULL); 767 return 0; 768 } 769 770 static void 771 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 772 struct lpfc_iocbq *cmdiocb) 773 { 774 struct lpfc_hba *phba = vport->phba; 775 struct lpfc_dmabuf *pcmd; 776 uint32_t *lp; 777 PRLI *npr; 778 struct fc_rport *rport = ndlp->rport; 779 u32 roles; 780 781 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 782 lp = (uint32_t *) pcmd->virt; 783 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t)); 784 785 if ((npr->prliType == PRLI_FCP_TYPE) || 786 (npr->prliType == PRLI_NVME_TYPE)) { 787 if (npr->initiatorFunc) { 788 if (npr->prliType == PRLI_FCP_TYPE) 789 ndlp->nlp_type |= NLP_FCP_INITIATOR; 790 if (npr->prliType == PRLI_NVME_TYPE) 791 ndlp->nlp_type |= NLP_NVME_INITIATOR; 792 } 793 if (npr->targetFunc) { 794 if (npr->prliType == PRLI_FCP_TYPE) 795 ndlp->nlp_type |= NLP_FCP_TARGET; 796 if (npr->prliType == PRLI_NVME_TYPE) 797 ndlp->nlp_type |= NLP_NVME_TARGET; 798 if (npr->writeXferRdyDis) 799 ndlp->nlp_flag |= NLP_FIRSTBURST; 800 } 801 if (npr->Retry) 802 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 803 804 /* If this driver is in nvme target mode, set the ndlp's fc4 805 * type to NVME provided the PRLI response claims NVME FC4 806 * type. Target mode does not issue gft_id so doesn't get 807 * the fc4 type set until now. 808 */ 809 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 810 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 811 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 812 } 813 if (npr->prliType == PRLI_FCP_TYPE) 814 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 815 } 816 if (rport) { 817 /* We need to update the rport role values */ 818 roles = FC_RPORT_ROLE_UNKNOWN; 819 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 820 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 821 if (ndlp->nlp_type & NLP_FCP_TARGET) 822 roles |= FC_RPORT_ROLE_FCP_TARGET; 823 824 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 825 "rport rolechg: role:x%x did:x%x flg:x%x", 826 roles, ndlp->nlp_DID, ndlp->nlp_flag); 827 828 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 829 fc_remote_port_rolechg(rport, roles); 830 } 831 } 832 833 static uint32_t 834 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 835 { 836 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 837 838 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 839 spin_lock_irq(shost->host_lock); 840 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 841 spin_unlock_irq(shost->host_lock); 842 return 0; 843 } 844 845 if (!(vport->fc_flag & FC_PT2PT)) { 846 /* Check config parameter use-adisc or FCP-2 */ 847 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) || 848 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 849 (ndlp->nlp_type & NLP_FCP_TARGET))) { 850 spin_lock_irq(shost->host_lock); 851 ndlp->nlp_flag |= NLP_NPR_ADISC; 852 spin_unlock_irq(shost->host_lock); 853 return 1; 854 } 855 } 856 857 spin_lock_irq(shost->host_lock); 858 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 859 spin_unlock_irq(shost->host_lock); 860 lpfc_unreg_rpi(vport, ndlp); 861 return 0; 862 } 863 864 /** 865 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 866 * @phba : Pointer to lpfc_hba structure. 867 * @vport: Pointer to lpfc_vport structure. 868 * @rpi : rpi to be release. 869 * 870 * This function will send a unreg_login mailbox command to the firmware 871 * to release a rpi. 872 **/ 873 void 874 lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, 875 struct lpfc_nodelist *ndlp, uint16_t rpi) 876 { 877 LPFC_MBOXQ_t *pmb; 878 int rc; 879 880 /* If there is already an UNREG in progress for this ndlp, 881 * no need to queue up another one. 882 */ 883 if (ndlp->nlp_flag & NLP_UNREG_INP) { 884 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 885 "1435 release_rpi SKIP UNREG x%x on " 886 "NPort x%x deferred x%x flg x%x " 887 "Data: %p\n", 888 ndlp->nlp_rpi, ndlp->nlp_DID, 889 ndlp->nlp_defer_did, 890 ndlp->nlp_flag, ndlp); 891 return; 892 } 893 894 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 895 GFP_KERNEL); 896 if (!pmb) 897 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 898 "2796 mailbox memory allocation failed \n"); 899 else { 900 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 901 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 902 pmb->vport = vport; 903 pmb->ctx_ndlp = ndlp; 904 905 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 906 (!(vport->fc_flag & FC_OFFLINE_MODE))) 907 ndlp->nlp_flag |= NLP_UNREG_INP; 908 909 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 910 "1437 release_rpi UNREG x%x " 911 "on NPort x%x flg x%x\n", 912 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); 913 914 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 915 if (rc == MBX_NOT_FINISHED) 916 mempool_free(pmb, phba->mbox_mem_pool); 917 } 918 } 919 920 static uint32_t 921 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 922 void *arg, uint32_t evt) 923 { 924 struct lpfc_hba *phba; 925 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 926 uint16_t rpi; 927 928 phba = vport->phba; 929 /* Release the RPI if reglogin completing */ 930 if (!(phba->pport->load_flag & FC_UNLOADING) && 931 (evt == NLP_EVT_CMPL_REG_LOGIN) && 932 (!pmb->u.mb.mbxStatus)) { 933 rpi = pmb->u.mb.un.varWords[0]; 934 lpfc_release_rpi(phba, vport, ndlp, rpi); 935 } 936 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 937 "0271 Illegal State Transition: node x%x " 938 "event x%x, state x%x Data: x%x x%x\n", 939 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 940 ndlp->nlp_flag); 941 return ndlp->nlp_state; 942 } 943 944 static uint32_t 945 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 946 void *arg, uint32_t evt) 947 { 948 /* This transition is only legal if we previously 949 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 950 * working on the same NPortID, do nothing for this thread 951 * to stop it. 952 */ 953 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 954 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 955 "0272 Illegal State Transition: node x%x " 956 "event x%x, state x%x Data: x%x x%x\n", 957 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 958 ndlp->nlp_flag); 959 } 960 return ndlp->nlp_state; 961 } 962 963 /* Start of Discovery State Machine routines */ 964 965 static uint32_t 966 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 967 void *arg, uint32_t evt) 968 { 969 struct lpfc_iocbq *cmdiocb; 970 971 cmdiocb = (struct lpfc_iocbq *) arg; 972 973 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 974 return ndlp->nlp_state; 975 } 976 return NLP_STE_FREED_NODE; 977 } 978 979 static uint32_t 980 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 981 void *arg, uint32_t evt) 982 { 983 lpfc_issue_els_logo(vport, ndlp, 0); 984 return ndlp->nlp_state; 985 } 986 987 static uint32_t 988 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 989 void *arg, uint32_t evt) 990 { 991 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 992 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 993 994 spin_lock_irq(shost->host_lock); 995 ndlp->nlp_flag |= NLP_LOGO_ACC; 996 spin_unlock_irq(shost->host_lock); 997 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 998 999 return ndlp->nlp_state; 1000 } 1001 1002 static uint32_t 1003 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1004 void *arg, uint32_t evt) 1005 { 1006 return NLP_STE_FREED_NODE; 1007 } 1008 1009 static uint32_t 1010 lpfc_device_rm_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_recov_unused_node(struct lpfc_vport *vport, 1018 struct lpfc_nodelist *ndlp, 1019 void *arg, uint32_t evt) 1020 { 1021 return ndlp->nlp_state; 1022 } 1023 1024 static uint32_t 1025 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1026 void *arg, uint32_t evt) 1027 { 1028 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1029 struct lpfc_hba *phba = vport->phba; 1030 struct lpfc_iocbq *cmdiocb = arg; 1031 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1032 uint32_t *lp = (uint32_t *) pcmd->virt; 1033 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1034 struct ls_rjt stat; 1035 int port_cmp; 1036 1037 memset(&stat, 0, sizeof (struct ls_rjt)); 1038 1039 /* For a PLOGI, we only accept if our portname is less 1040 * than the remote portname. 1041 */ 1042 phba->fc_stat.elsLogiCol++; 1043 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1044 sizeof(struct lpfc_name)); 1045 1046 if (port_cmp >= 0) { 1047 /* Reject this request because the remote node will accept 1048 ours */ 1049 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1050 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1051 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1052 NULL); 1053 } else { 1054 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1055 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 1056 (vport->num_disc_nodes)) { 1057 spin_lock_irq(shost->host_lock); 1058 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1059 spin_unlock_irq(shost->host_lock); 1060 /* Check if there are more PLOGIs to be sent */ 1061 lpfc_more_plogi(vport); 1062 if (vport->num_disc_nodes == 0) { 1063 spin_lock_irq(shost->host_lock); 1064 vport->fc_flag &= ~FC_NDISC_ACTIVE; 1065 spin_unlock_irq(shost->host_lock); 1066 lpfc_can_disctmo(vport); 1067 lpfc_end_rscn(vport); 1068 } 1069 } 1070 } /* If our portname was less */ 1071 1072 return ndlp->nlp_state; 1073 } 1074 1075 static uint32_t 1076 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1077 void *arg, uint32_t evt) 1078 { 1079 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1080 struct ls_rjt stat; 1081 1082 memset(&stat, 0, sizeof (struct ls_rjt)); 1083 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1084 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1085 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1086 return ndlp->nlp_state; 1087 } 1088 1089 static uint32_t 1090 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1091 void *arg, uint32_t evt) 1092 { 1093 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1094 1095 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1096 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1097 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1098 /* software abort outstanding PLOGI */ 1099 lpfc_els_abort(vport->phba, ndlp); 1100 1101 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1102 return ndlp->nlp_state; 1103 } 1104 1105 static uint32_t 1106 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1107 void *arg, uint32_t evt) 1108 { 1109 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1110 struct lpfc_hba *phba = vport->phba; 1111 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1112 1113 /* software abort outstanding PLOGI */ 1114 lpfc_els_abort(phba, ndlp); 1115 1116 if (evt == NLP_EVT_RCV_LOGO) { 1117 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1118 } else { 1119 lpfc_issue_els_logo(vport, ndlp, 0); 1120 } 1121 1122 /* Put ndlp in npr state set plogi timer for 1 sec */ 1123 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1124 spin_lock_irq(shost->host_lock); 1125 ndlp->nlp_flag |= NLP_DELAY_TMO; 1126 spin_unlock_irq(shost->host_lock); 1127 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1128 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1129 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1130 1131 return ndlp->nlp_state; 1132 } 1133 1134 static uint32_t 1135 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1136 struct lpfc_nodelist *ndlp, 1137 void *arg, 1138 uint32_t evt) 1139 { 1140 struct lpfc_hba *phba = vport->phba; 1141 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1142 struct lpfc_iocbq *cmdiocb, *rspiocb; 1143 struct lpfc_dmabuf *pcmd, *prsp, *mp; 1144 uint32_t *lp; 1145 uint32_t vid, flag; 1146 IOCB_t *irsp; 1147 struct serv_parm *sp; 1148 uint32_t ed_tov; 1149 LPFC_MBOXQ_t *mbox; 1150 int rc; 1151 1152 cmdiocb = (struct lpfc_iocbq *) arg; 1153 rspiocb = cmdiocb->context_un.rsp_iocb; 1154 1155 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1156 /* Recovery from PLOGI collision logic */ 1157 return ndlp->nlp_state; 1158 } 1159 1160 irsp = &rspiocb->iocb; 1161 1162 if (irsp->ulpStatus) 1163 goto out; 1164 1165 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1166 1167 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1168 if (!prsp) 1169 goto out; 1170 1171 lp = (uint32_t *) prsp->virt; 1172 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1173 1174 /* Some switches have FDMI servers returning 0 for WWN */ 1175 if ((ndlp->nlp_DID != FDMI_DID) && 1176 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1177 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1178 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1179 "0142 PLOGI RSP: Invalid WWN.\n"); 1180 goto out; 1181 } 1182 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1183 goto out; 1184 /* PLOGI chkparm OK */ 1185 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1186 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1187 ndlp->nlp_DID, ndlp->nlp_state, 1188 ndlp->nlp_flag, ndlp->nlp_rpi); 1189 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1190 ndlp->nlp_fcp_info |= CLASS2; 1191 else 1192 ndlp->nlp_fcp_info |= CLASS3; 1193 1194 ndlp->nlp_class_sup = 0; 1195 if (sp->cls1.classValid) 1196 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1197 if (sp->cls2.classValid) 1198 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1199 if (sp->cls3.classValid) 1200 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1201 if (sp->cls4.classValid) 1202 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1203 ndlp->nlp_maxframe = 1204 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1205 1206 if ((vport->fc_flag & FC_PT2PT) && 1207 (vport->fc_flag & FC_PT2PT_PLOGI)) { 1208 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1209 if (sp->cmn.edtovResolution) { 1210 /* E_D_TOV ticks are in nanoseconds */ 1211 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1212 } 1213 1214 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 1215 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1216 sp->cmn.valid_vendor_ver_level) { 1217 vid = be32_to_cpu(sp->un.vv.vid); 1218 flag = be32_to_cpu(sp->un.vv.flags); 1219 if ((vid == LPFC_VV_EMLX_ID) && 1220 (flag & LPFC_VV_SUPPRESS_RSP)) 1221 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 1222 } 1223 1224 /* 1225 * Use the larger EDTOV 1226 * RATOV = 2 * EDTOV for pt-to-pt 1227 */ 1228 if (ed_tov > phba->fc_edtov) 1229 phba->fc_edtov = ed_tov; 1230 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1231 1232 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1233 1234 /* Issue config_link / reg_vfi to account for updated TOV's */ 1235 if (phba->sli_rev == LPFC_SLI_REV4) { 1236 lpfc_issue_reg_vfi(vport); 1237 } else { 1238 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1239 if (!mbox) { 1240 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1241 "0133 PLOGI: no memory " 1242 "for config_link " 1243 "Data: x%x x%x x%x x%x\n", 1244 ndlp->nlp_DID, ndlp->nlp_state, 1245 ndlp->nlp_flag, ndlp->nlp_rpi); 1246 goto out; 1247 } 1248 1249 lpfc_config_link(phba, mbox); 1250 1251 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1252 mbox->vport = vport; 1253 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1254 if (rc == MBX_NOT_FINISHED) { 1255 mempool_free(mbox, phba->mbox_mem_pool); 1256 goto out; 1257 } 1258 } 1259 } 1260 1261 lpfc_unreg_rpi(vport, ndlp); 1262 1263 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1264 if (!mbox) { 1265 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1266 "0018 PLOGI: no memory for reg_login " 1267 "Data: x%x x%x x%x x%x\n", 1268 ndlp->nlp_DID, ndlp->nlp_state, 1269 ndlp->nlp_flag, ndlp->nlp_rpi); 1270 goto out; 1271 } 1272 1273 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID, 1274 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1275 switch (ndlp->nlp_DID) { 1276 case NameServer_DID: 1277 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1278 break; 1279 case FDMI_DID: 1280 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1281 break; 1282 default: 1283 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1284 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1285 } 1286 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1287 mbox->vport = vport; 1288 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1289 != MBX_NOT_FINISHED) { 1290 lpfc_nlp_set_state(vport, ndlp, 1291 NLP_STE_REG_LOGIN_ISSUE); 1292 return ndlp->nlp_state; 1293 } 1294 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1295 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1296 /* decrement node reference count to the failed mbox 1297 * command 1298 */ 1299 lpfc_nlp_put(ndlp); 1300 mp = (struct lpfc_dmabuf *)mbox->ctx_buf; 1301 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1302 kfree(mp); 1303 mempool_free(mbox, phba->mbox_mem_pool); 1304 1305 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1306 "0134 PLOGI: cannot issue reg_login " 1307 "Data: x%x x%x x%x x%x\n", 1308 ndlp->nlp_DID, ndlp->nlp_state, 1309 ndlp->nlp_flag, ndlp->nlp_rpi); 1310 } else { 1311 mempool_free(mbox, phba->mbox_mem_pool); 1312 1313 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1314 "0135 PLOGI: cannot format reg_login " 1315 "Data: x%x x%x x%x x%x\n", 1316 ndlp->nlp_DID, ndlp->nlp_state, 1317 ndlp->nlp_flag, ndlp->nlp_rpi); 1318 } 1319 1320 1321 out: 1322 if (ndlp->nlp_DID == NameServer_DID) { 1323 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1324 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1325 "0261 Cannot Register NameServer login\n"); 1326 } 1327 1328 /* 1329 ** In case the node reference counter does not go to zero, ensure that 1330 ** the stale state for the node is not processed. 1331 */ 1332 1333 ndlp->nlp_prev_state = ndlp->nlp_state; 1334 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1335 spin_lock_irq(shost->host_lock); 1336 ndlp->nlp_flag |= NLP_DEFER_RM; 1337 spin_unlock_irq(shost->host_lock); 1338 return NLP_STE_FREED_NODE; 1339 } 1340 1341 static uint32_t 1342 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1343 void *arg, uint32_t evt) 1344 { 1345 return ndlp->nlp_state; 1346 } 1347 1348 static uint32_t 1349 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1350 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1351 { 1352 struct lpfc_hba *phba; 1353 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1354 MAILBOX_t *mb = &pmb->u.mb; 1355 uint16_t rpi; 1356 1357 phba = vport->phba; 1358 /* Release the RPI */ 1359 if (!(phba->pport->load_flag & FC_UNLOADING) && 1360 !mb->mbxStatus) { 1361 rpi = pmb->u.mb.un.varWords[0]; 1362 lpfc_release_rpi(phba, vport, ndlp, rpi); 1363 } 1364 return ndlp->nlp_state; 1365 } 1366 1367 static uint32_t 1368 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1369 void *arg, uint32_t evt) 1370 { 1371 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1372 1373 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1374 spin_lock_irq(shost->host_lock); 1375 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1376 spin_unlock_irq(shost->host_lock); 1377 return ndlp->nlp_state; 1378 } else { 1379 /* software abort outstanding PLOGI */ 1380 lpfc_els_abort(vport->phba, ndlp); 1381 1382 lpfc_drop_node(vport, ndlp); 1383 return NLP_STE_FREED_NODE; 1384 } 1385 } 1386 1387 static uint32_t 1388 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1389 struct lpfc_nodelist *ndlp, 1390 void *arg, 1391 uint32_t evt) 1392 { 1393 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1394 struct lpfc_hba *phba = vport->phba; 1395 1396 /* Don't do anything that will mess up processing of the 1397 * previous RSCN. 1398 */ 1399 if (vport->fc_flag & FC_RSCN_DEFERRED) 1400 return ndlp->nlp_state; 1401 1402 /* software abort outstanding PLOGI */ 1403 lpfc_els_abort(phba, ndlp); 1404 1405 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1406 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1407 spin_lock_irq(shost->host_lock); 1408 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1409 spin_unlock_irq(shost->host_lock); 1410 1411 return ndlp->nlp_state; 1412 } 1413 1414 static uint32_t 1415 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1416 void *arg, uint32_t evt) 1417 { 1418 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1419 struct lpfc_hba *phba = vport->phba; 1420 struct lpfc_iocbq *cmdiocb; 1421 1422 /* software abort outstanding ADISC */ 1423 lpfc_els_abort(phba, ndlp); 1424 1425 cmdiocb = (struct lpfc_iocbq *) arg; 1426 1427 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1428 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1429 spin_lock_irq(shost->host_lock); 1430 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1431 spin_unlock_irq(shost->host_lock); 1432 if (vport->num_disc_nodes) 1433 lpfc_more_adisc(vport); 1434 } 1435 return ndlp->nlp_state; 1436 } 1437 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1438 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1439 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1440 1441 return ndlp->nlp_state; 1442 } 1443 1444 static uint32_t 1445 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1446 void *arg, uint32_t evt) 1447 { 1448 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1449 1450 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1451 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1452 return ndlp->nlp_state; 1453 } 1454 1455 static uint32_t 1456 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1457 void *arg, uint32_t evt) 1458 { 1459 struct lpfc_hba *phba = vport->phba; 1460 struct lpfc_iocbq *cmdiocb; 1461 1462 cmdiocb = (struct lpfc_iocbq *) arg; 1463 1464 /* software abort outstanding ADISC */ 1465 lpfc_els_abort(phba, ndlp); 1466 1467 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1468 return ndlp->nlp_state; 1469 } 1470 1471 static uint32_t 1472 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1473 struct lpfc_nodelist *ndlp, 1474 void *arg, uint32_t evt) 1475 { 1476 struct lpfc_iocbq *cmdiocb; 1477 1478 cmdiocb = (struct lpfc_iocbq *) arg; 1479 1480 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1481 return ndlp->nlp_state; 1482 } 1483 1484 static uint32_t 1485 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1486 void *arg, uint32_t evt) 1487 { 1488 struct lpfc_iocbq *cmdiocb; 1489 1490 cmdiocb = (struct lpfc_iocbq *) arg; 1491 1492 /* Treat like rcv logo */ 1493 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1494 return ndlp->nlp_state; 1495 } 1496 1497 static uint32_t 1498 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1499 struct lpfc_nodelist *ndlp, 1500 void *arg, uint32_t evt) 1501 { 1502 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1503 struct lpfc_hba *phba = vport->phba; 1504 struct lpfc_iocbq *cmdiocb, *rspiocb; 1505 IOCB_t *irsp; 1506 ADISC *ap; 1507 int rc; 1508 1509 cmdiocb = (struct lpfc_iocbq *) arg; 1510 rspiocb = cmdiocb->context_un.rsp_iocb; 1511 1512 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1513 irsp = &rspiocb->iocb; 1514 1515 if ((irsp->ulpStatus) || 1516 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1517 /* 1 sec timeout */ 1518 mod_timer(&ndlp->nlp_delayfunc, 1519 jiffies + msecs_to_jiffies(1000)); 1520 spin_lock_irq(shost->host_lock); 1521 ndlp->nlp_flag |= NLP_DELAY_TMO; 1522 spin_unlock_irq(shost->host_lock); 1523 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1524 1525 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name)); 1526 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name)); 1527 1528 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1529 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1530 lpfc_unreg_rpi(vport, ndlp); 1531 return ndlp->nlp_state; 1532 } 1533 1534 if (phba->sli_rev == LPFC_SLI_REV4) { 1535 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1536 if (rc) { 1537 /* Stay in state and retry. */ 1538 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1539 return ndlp->nlp_state; 1540 } 1541 } 1542 1543 if (ndlp->nlp_type & NLP_FCP_TARGET) { 1544 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1545 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1546 } else { 1547 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1548 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1549 } 1550 1551 return ndlp->nlp_state; 1552 } 1553 1554 static uint32_t 1555 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1556 void *arg, uint32_t evt) 1557 { 1558 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1559 1560 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1561 spin_lock_irq(shost->host_lock); 1562 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1563 spin_unlock_irq(shost->host_lock); 1564 return ndlp->nlp_state; 1565 } else { 1566 /* software abort outstanding ADISC */ 1567 lpfc_els_abort(vport->phba, ndlp); 1568 1569 lpfc_drop_node(vport, ndlp); 1570 return NLP_STE_FREED_NODE; 1571 } 1572 } 1573 1574 static uint32_t 1575 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1576 struct lpfc_nodelist *ndlp, 1577 void *arg, 1578 uint32_t evt) 1579 { 1580 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1581 struct lpfc_hba *phba = vport->phba; 1582 1583 /* Don't do anything that will mess up processing of the 1584 * previous RSCN. 1585 */ 1586 if (vport->fc_flag & FC_RSCN_DEFERRED) 1587 return ndlp->nlp_state; 1588 1589 /* software abort outstanding ADISC */ 1590 lpfc_els_abort(phba, ndlp); 1591 1592 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1593 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1594 spin_lock_irq(shost->host_lock); 1595 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1596 spin_unlock_irq(shost->host_lock); 1597 lpfc_disc_set_adisc(vport, ndlp); 1598 return ndlp->nlp_state; 1599 } 1600 1601 static uint32_t 1602 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1603 struct lpfc_nodelist *ndlp, 1604 void *arg, 1605 uint32_t evt) 1606 { 1607 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1608 1609 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1610 return ndlp->nlp_state; 1611 } 1612 1613 static uint32_t 1614 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1615 struct lpfc_nodelist *ndlp, 1616 void *arg, 1617 uint32_t evt) 1618 { 1619 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1620 struct ls_rjt stat; 1621 1622 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1623 return ndlp->nlp_state; 1624 } 1625 if (vport->phba->nvmet_support) { 1626 /* NVME Target mode. Handle and respond to the PRLI and 1627 * transition to UNMAPPED provided the RPI has completed 1628 * registration. 1629 */ 1630 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 1631 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1632 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1633 } else { 1634 /* RPI registration has not completed. Reject the PRLI 1635 * to prevent an illegal state transition when the 1636 * rpi registration does complete. 1637 */ 1638 memset(&stat, 0, sizeof(struct ls_rjt)); 1639 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1640 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1641 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1642 ndlp, NULL); 1643 return ndlp->nlp_state; 1644 } 1645 } else { 1646 /* Initiator mode. */ 1647 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1648 } 1649 return ndlp->nlp_state; 1650 } 1651 1652 static uint32_t 1653 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1654 struct lpfc_nodelist *ndlp, 1655 void *arg, 1656 uint32_t evt) 1657 { 1658 struct lpfc_hba *phba = vport->phba; 1659 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1660 LPFC_MBOXQ_t *mb; 1661 LPFC_MBOXQ_t *nextmb; 1662 struct lpfc_dmabuf *mp; 1663 1664 cmdiocb = (struct lpfc_iocbq *) arg; 1665 1666 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1667 if ((mb = phba->sli.mbox_active)) { 1668 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1669 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1670 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1671 lpfc_nlp_put(ndlp); 1672 mb->ctx_ndlp = NULL; 1673 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1674 } 1675 } 1676 1677 spin_lock_irq(&phba->hbalock); 1678 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1679 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1680 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1681 mp = (struct lpfc_dmabuf *)(mb->ctx_buf); 1682 if (mp) { 1683 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 1684 kfree(mp); 1685 } 1686 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1687 lpfc_nlp_put(ndlp); 1688 list_del(&mb->list); 1689 phba->sli.mboxq_cnt--; 1690 mempool_free(mb, phba->mbox_mem_pool); 1691 } 1692 } 1693 spin_unlock_irq(&phba->hbalock); 1694 1695 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1696 return ndlp->nlp_state; 1697 } 1698 1699 static uint32_t 1700 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1701 struct lpfc_nodelist *ndlp, 1702 void *arg, 1703 uint32_t evt) 1704 { 1705 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1706 1707 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1708 return ndlp->nlp_state; 1709 } 1710 1711 static uint32_t 1712 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1713 struct lpfc_nodelist *ndlp, 1714 void *arg, 1715 uint32_t evt) 1716 { 1717 struct lpfc_iocbq *cmdiocb; 1718 1719 cmdiocb = (struct lpfc_iocbq *) arg; 1720 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1721 return ndlp->nlp_state; 1722 } 1723 1724 static uint32_t 1725 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1726 struct lpfc_nodelist *ndlp, 1727 void *arg, 1728 uint32_t evt) 1729 { 1730 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1731 struct lpfc_hba *phba = vport->phba; 1732 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1733 MAILBOX_t *mb = &pmb->u.mb; 1734 uint32_t did = mb->un.varWords[1]; 1735 int rc = 0; 1736 1737 if (mb->mbxStatus) { 1738 /* RegLogin failed */ 1739 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1740 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1741 "x%x\n", 1742 did, mb->mbxStatus, vport->port_state, 1743 mb->un.varRegLogin.vpi, 1744 mb->un.varRegLogin.rpi); 1745 /* 1746 * If RegLogin failed due to lack of HBA resources do not 1747 * retry discovery. 1748 */ 1749 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1750 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1751 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1752 return ndlp->nlp_state; 1753 } 1754 1755 /* Put ndlp in npr state set plogi timer for 1 sec */ 1756 mod_timer(&ndlp->nlp_delayfunc, 1757 jiffies + msecs_to_jiffies(1000 * 1)); 1758 spin_lock_irq(shost->host_lock); 1759 ndlp->nlp_flag |= NLP_DELAY_TMO; 1760 spin_unlock_irq(shost->host_lock); 1761 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1762 1763 lpfc_issue_els_logo(vport, ndlp, 0); 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 /* SLI4 ports have preallocated logical rpis. */ 1770 if (phba->sli_rev < LPFC_SLI_REV4) 1771 ndlp->nlp_rpi = mb->un.varWords[0]; 1772 1773 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1774 1775 /* Only if we are not a fabric nport do we issue PRLI */ 1776 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1777 "3066 RegLogin Complete on x%x x%x x%x\n", 1778 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 1779 if (!(ndlp->nlp_type & NLP_FABRIC) && 1780 (phba->nvmet_support == 0)) { 1781 /* The driver supports FCP and NVME concurrently. If the 1782 * ndlp's nlp_fc4_type is still zero, the driver doesn't 1783 * know what PRLI to send yet. Figure that out now and 1784 * call PRLI depending on the outcome. 1785 */ 1786 if (vport->fc_flag & FC_PT2PT) { 1787 /* If we are pt2pt, there is no Fabric to determine 1788 * the FC4 type of the remote nport. So if NVME 1789 * is configured try it. 1790 */ 1791 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1792 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 1793 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1794 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1795 /* We need to update the localport also */ 1796 lpfc_nvme_update_localport(vport); 1797 } 1798 1799 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 1800 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1801 1802 } else if (ndlp->nlp_fc4_type == 0) { 1803 /* If we are only configured for FCP, the driver 1804 * should just issue PRLI for FCP. Otherwise issue 1805 * GFT_ID to determine if remote port supports NVME. 1806 */ 1807 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 1808 rc = lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 1809 0, ndlp->nlp_DID); 1810 return ndlp->nlp_state; 1811 } 1812 ndlp->nlp_fc4_type = NLP_FC4_FCP; 1813 } 1814 1815 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1816 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 1817 lpfc_issue_els_prli(vport, ndlp, 0); 1818 } else { 1819 if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support) 1820 phba->targetport->port_id = vport->fc_myDID; 1821 1822 /* Only Fabric ports should transition. NVME target 1823 * must complete PRLI. 1824 */ 1825 if (ndlp->nlp_type & NLP_FABRIC) { 1826 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1827 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1828 } 1829 } 1830 return ndlp->nlp_state; 1831 } 1832 1833 static uint32_t 1834 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 1835 struct lpfc_nodelist *ndlp, 1836 void *arg, 1837 uint32_t evt) 1838 { 1839 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1840 1841 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1842 spin_lock_irq(shost->host_lock); 1843 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1844 spin_unlock_irq(shost->host_lock); 1845 return ndlp->nlp_state; 1846 } else { 1847 lpfc_drop_node(vport, ndlp); 1848 return NLP_STE_FREED_NODE; 1849 } 1850 } 1851 1852 static uint32_t 1853 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 1854 struct lpfc_nodelist *ndlp, 1855 void *arg, 1856 uint32_t evt) 1857 { 1858 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1859 1860 /* Don't do anything that will mess up processing of the 1861 * previous RSCN. 1862 */ 1863 if (vport->fc_flag & FC_RSCN_DEFERRED) 1864 return ndlp->nlp_state; 1865 1866 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1867 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1868 spin_lock_irq(shost->host_lock); 1869 1870 /* If we are a target we won't immediately transition into PRLI, 1871 * so if REG_LOGIN already completed we don't need to ignore it. 1872 */ 1873 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) || 1874 !vport->phba->nvmet_support) 1875 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 1876 1877 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1878 spin_unlock_irq(shost->host_lock); 1879 lpfc_disc_set_adisc(vport, ndlp); 1880 return ndlp->nlp_state; 1881 } 1882 1883 static uint32_t 1884 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1885 void *arg, uint32_t evt) 1886 { 1887 struct lpfc_iocbq *cmdiocb; 1888 1889 cmdiocb = (struct lpfc_iocbq *) arg; 1890 1891 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1892 return ndlp->nlp_state; 1893 } 1894 1895 static uint32_t 1896 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1897 void *arg, uint32_t evt) 1898 { 1899 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1900 1901 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1902 return ndlp->nlp_state; 1903 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1904 return ndlp->nlp_state; 1905 } 1906 1907 static uint32_t 1908 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1909 void *arg, uint32_t evt) 1910 { 1911 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1912 1913 /* Software abort outstanding PRLI before sending acc */ 1914 lpfc_els_abort(vport->phba, ndlp); 1915 1916 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1917 return ndlp->nlp_state; 1918 } 1919 1920 static uint32_t 1921 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1922 void *arg, uint32_t evt) 1923 { 1924 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1925 1926 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1927 return ndlp->nlp_state; 1928 } 1929 1930 /* This routine is envoked when we rcv a PRLO request from a nport 1931 * we are logged into. We should send back a PRLO rsp setting the 1932 * appropriate bits. 1933 * NEXT STATE = PRLI_ISSUE 1934 */ 1935 static uint32_t 1936 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1937 void *arg, uint32_t evt) 1938 { 1939 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1940 1941 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1942 return ndlp->nlp_state; 1943 } 1944 1945 static uint32_t 1946 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1947 void *arg, uint32_t evt) 1948 { 1949 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1950 struct lpfc_iocbq *cmdiocb, *rspiocb; 1951 struct lpfc_hba *phba = vport->phba; 1952 IOCB_t *irsp; 1953 PRLI *npr; 1954 struct lpfc_nvme_prli *nvpr; 1955 void *temp_ptr; 1956 1957 cmdiocb = (struct lpfc_iocbq *) arg; 1958 rspiocb = cmdiocb->context_un.rsp_iocb; 1959 1960 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 1961 * format is different so NULL the two PRLI types so that the 1962 * driver correctly gets the correct context. 1963 */ 1964 npr = NULL; 1965 nvpr = NULL; 1966 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1967 if (cmdiocb->iocb_flag & LPFC_PRLI_FCP_REQ) 1968 npr = (PRLI *) temp_ptr; 1969 else if (cmdiocb->iocb_flag & LPFC_PRLI_NVME_REQ) 1970 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 1971 1972 irsp = &rspiocb->iocb; 1973 if (irsp->ulpStatus) { 1974 if ((vport->port_type == LPFC_NPIV_PORT) && 1975 vport->cfg_restrict_login) { 1976 goto out; 1977 } 1978 1979 /* Adjust the nlp_type accordingly if the PRLI failed */ 1980 if (npr) 1981 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 1982 if (nvpr) 1983 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 1984 1985 /* We can't set the DSM state till BOTH PRLIs complete */ 1986 goto out_err; 1987 } 1988 1989 if (npr && (npr->acceptRspCode == PRLI_REQ_EXECUTED) && 1990 (npr->prliType == PRLI_FCP_TYPE)) { 1991 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 1992 "6028 FCP NPR PRLI Cmpl Init %d Target %d\n", 1993 npr->initiatorFunc, 1994 npr->targetFunc); 1995 if (npr->initiatorFunc) 1996 ndlp->nlp_type |= NLP_FCP_INITIATOR; 1997 if (npr->targetFunc) { 1998 ndlp->nlp_type |= NLP_FCP_TARGET; 1999 if (npr->writeXferRdyDis) 2000 ndlp->nlp_flag |= NLP_FIRSTBURST; 2001 } 2002 if (npr->Retry) 2003 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 2004 2005 } else if (nvpr && 2006 (bf_get_be32(prli_acc_rsp_code, nvpr) == 2007 PRLI_REQ_EXECUTED) && 2008 (bf_get_be32(prli_type_code, nvpr) == 2009 PRLI_NVME_TYPE)) { 2010 2011 /* Complete setting up the remote ndlp personality. */ 2012 if (bf_get_be32(prli_init, nvpr)) 2013 ndlp->nlp_type |= NLP_NVME_INITIATOR; 2014 2015 /* Target driver cannot solicit NVME FB. */ 2016 if (bf_get_be32(prli_tgt, nvpr)) { 2017 /* Complete the nvme target roles. The transport 2018 * needs to know if the rport is capable of 2019 * discovery in addition to its role. 2020 */ 2021 ndlp->nlp_type |= NLP_NVME_TARGET; 2022 if (bf_get_be32(prli_disc, nvpr)) 2023 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 2024 2025 /* 2026 * If prli_fba is set, the Target supports FirstBurst. 2027 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 2028 * otherwise it defines the actual size supported by 2029 * the NVME Target. 2030 */ 2031 if ((bf_get_be32(prli_fba, nvpr) == 1) && 2032 (phba->cfg_nvme_enable_fb) && 2033 (!phba->nvmet_support)) { 2034 /* Both sides support FB. The target's first 2035 * burst size is a 512 byte encoded value. 2036 */ 2037 ndlp->nlp_flag |= NLP_FIRSTBURST; 2038 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2039 nvpr); 2040 2041 /* Expressed in units of 512 bytes */ 2042 if (ndlp->nvme_fb_size) 2043 ndlp->nvme_fb_size <<= 2044 LPFC_NVME_FB_SHIFT; 2045 else 2046 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2047 } 2048 } 2049 2050 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2051 "6029 NVME PRLI Cmpl w1 x%08x " 2052 "w4 x%08x w5 x%08x flag x%x, " 2053 "fcp_info x%x nlp_type x%x\n", 2054 be32_to_cpu(nvpr->word1), 2055 be32_to_cpu(nvpr->word4), 2056 be32_to_cpu(nvpr->word5), 2057 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2058 ndlp->nlp_type); 2059 } 2060 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2061 (vport->port_type == LPFC_NPIV_PORT) && 2062 vport->cfg_restrict_login) { 2063 out: 2064 spin_lock_irq(shost->host_lock); 2065 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 2066 spin_unlock_irq(shost->host_lock); 2067 lpfc_issue_els_logo(vport, ndlp, 0); 2068 2069 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2070 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2071 return ndlp->nlp_state; 2072 } 2073 2074 out_err: 2075 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2076 * are complete. 2077 */ 2078 if (ndlp->fc4_prli_sent == 0) { 2079 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2080 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2081 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2082 else if (ndlp->nlp_type & 2083 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2084 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2085 } else 2086 lpfc_printf_vlog(vport, 2087 KERN_INFO, LOG_ELS, 2088 "3067 PRLI's still outstanding " 2089 "on x%06x - count %d, Pend Node Mode " 2090 "transition...\n", 2091 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2092 2093 return ndlp->nlp_state; 2094 } 2095 2096 /*! lpfc_device_rm_prli_issue 2097 * 2098 * \pre 2099 * \post 2100 * \param phba 2101 * \param ndlp 2102 * \param arg 2103 * \param evt 2104 * \return uint32_t 2105 * 2106 * \b Description: 2107 * This routine is envoked when we a request to remove a nport we are in the 2108 * process of PRLIing. We should software abort outstanding prli, unreg 2109 * login, send a logout. We will change node state to UNUSED_NODE, put it 2110 * on plogi list so it can be freed when LOGO completes. 2111 * 2112 */ 2113 2114 static uint32_t 2115 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2116 void *arg, uint32_t evt) 2117 { 2118 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2119 2120 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2121 spin_lock_irq(shost->host_lock); 2122 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2123 spin_unlock_irq(shost->host_lock); 2124 return ndlp->nlp_state; 2125 } else { 2126 /* software abort outstanding PLOGI */ 2127 lpfc_els_abort(vport->phba, ndlp); 2128 2129 lpfc_drop_node(vport, ndlp); 2130 return NLP_STE_FREED_NODE; 2131 } 2132 } 2133 2134 2135 /*! lpfc_device_recov_prli_issue 2136 * 2137 * \pre 2138 * \post 2139 * \param phba 2140 * \param ndlp 2141 * \param arg 2142 * \param evt 2143 * \return uint32_t 2144 * 2145 * \b Description: 2146 * The routine is envoked when the state of a device is unknown, like 2147 * during a link down. We should remove the nodelist entry from the 2148 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2149 * outstanding PRLI command, then free the node entry. 2150 */ 2151 static uint32_t 2152 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2153 struct lpfc_nodelist *ndlp, 2154 void *arg, 2155 uint32_t evt) 2156 { 2157 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2158 struct lpfc_hba *phba = vport->phba; 2159 2160 /* Don't do anything that will mess up processing of the 2161 * previous RSCN. 2162 */ 2163 if (vport->fc_flag & FC_RSCN_DEFERRED) 2164 return ndlp->nlp_state; 2165 2166 /* software abort outstanding PRLI */ 2167 lpfc_els_abort(phba, ndlp); 2168 2169 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2170 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2171 spin_lock_irq(shost->host_lock); 2172 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2173 spin_unlock_irq(shost->host_lock); 2174 lpfc_disc_set_adisc(vport, ndlp); 2175 return ndlp->nlp_state; 2176 } 2177 2178 static uint32_t 2179 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2180 void *arg, uint32_t evt) 2181 { 2182 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2183 struct ls_rjt stat; 2184 2185 memset(&stat, 0, sizeof(struct ls_rjt)); 2186 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2187 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2188 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2189 return ndlp->nlp_state; 2190 } 2191 2192 static uint32_t 2193 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2194 void *arg, uint32_t evt) 2195 { 2196 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2197 struct ls_rjt stat; 2198 2199 memset(&stat, 0, sizeof(struct ls_rjt)); 2200 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2201 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2202 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2203 return ndlp->nlp_state; 2204 } 2205 2206 static uint32_t 2207 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2208 void *arg, uint32_t evt) 2209 { 2210 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2211 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2212 2213 spin_lock_irq(shost->host_lock); 2214 ndlp->nlp_flag |= NLP_LOGO_ACC; 2215 spin_unlock_irq(shost->host_lock); 2216 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2217 return ndlp->nlp_state; 2218 } 2219 2220 static uint32_t 2221 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2222 void *arg, uint32_t evt) 2223 { 2224 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2225 struct ls_rjt stat; 2226 2227 memset(&stat, 0, sizeof(struct ls_rjt)); 2228 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2229 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2230 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2231 return ndlp->nlp_state; 2232 } 2233 2234 static uint32_t 2235 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2236 void *arg, uint32_t evt) 2237 { 2238 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2239 struct ls_rjt stat; 2240 2241 memset(&stat, 0, sizeof(struct ls_rjt)); 2242 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2243 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2244 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2245 return ndlp->nlp_state; 2246 } 2247 2248 static uint32_t 2249 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2250 void *arg, uint32_t evt) 2251 { 2252 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2253 2254 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2255 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2256 spin_lock_irq(shost->host_lock); 2257 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2258 spin_unlock_irq(shost->host_lock); 2259 lpfc_disc_set_adisc(vport, ndlp); 2260 return ndlp->nlp_state; 2261 } 2262 2263 static uint32_t 2264 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2265 void *arg, uint32_t evt) 2266 { 2267 /* 2268 * DevLoss has timed out and is calling for Device Remove. 2269 * In this case, abort the LOGO and cleanup the ndlp 2270 */ 2271 2272 lpfc_unreg_rpi(vport, ndlp); 2273 /* software abort outstanding PLOGI */ 2274 lpfc_els_abort(vport->phba, ndlp); 2275 lpfc_drop_node(vport, ndlp); 2276 return NLP_STE_FREED_NODE; 2277 } 2278 2279 static uint32_t 2280 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2281 struct lpfc_nodelist *ndlp, 2282 void *arg, uint32_t evt) 2283 { 2284 /* 2285 * Device Recovery events have no meaning for a node with a LOGO 2286 * outstanding. The LOGO has to complete first and handle the 2287 * node from that point. 2288 */ 2289 return ndlp->nlp_state; 2290 } 2291 2292 static uint32_t 2293 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2294 void *arg, uint32_t evt) 2295 { 2296 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2297 2298 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2299 return ndlp->nlp_state; 2300 } 2301 2302 static uint32_t 2303 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2304 void *arg, uint32_t evt) 2305 { 2306 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2307 2308 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2309 return ndlp->nlp_state; 2310 2311 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2312 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2313 return ndlp->nlp_state; 2314 } 2315 2316 static uint32_t 2317 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2318 void *arg, uint32_t evt) 2319 { 2320 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2321 2322 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2323 return ndlp->nlp_state; 2324 } 2325 2326 static uint32_t 2327 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2328 void *arg, uint32_t evt) 2329 { 2330 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2331 2332 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2333 return ndlp->nlp_state; 2334 } 2335 2336 static uint32_t 2337 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2338 void *arg, uint32_t evt) 2339 { 2340 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2341 2342 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2343 return ndlp->nlp_state; 2344 } 2345 2346 static uint32_t 2347 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2348 struct lpfc_nodelist *ndlp, 2349 void *arg, 2350 uint32_t evt) 2351 { 2352 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2353 2354 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2355 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2356 spin_lock_irq(shost->host_lock); 2357 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2358 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2359 spin_unlock_irq(shost->host_lock); 2360 lpfc_disc_set_adisc(vport, ndlp); 2361 2362 return ndlp->nlp_state; 2363 } 2364 2365 static uint32_t 2366 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2367 void *arg, uint32_t evt) 2368 { 2369 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2370 2371 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2372 return ndlp->nlp_state; 2373 } 2374 2375 static uint32_t 2376 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2377 void *arg, uint32_t evt) 2378 { 2379 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2380 2381 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2382 return ndlp->nlp_state; 2383 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2384 return ndlp->nlp_state; 2385 } 2386 2387 static uint32_t 2388 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2389 void *arg, uint32_t evt) 2390 { 2391 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2392 2393 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2394 return ndlp->nlp_state; 2395 } 2396 2397 static uint32_t 2398 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2399 struct lpfc_nodelist *ndlp, 2400 void *arg, uint32_t evt) 2401 { 2402 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2403 2404 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2405 return ndlp->nlp_state; 2406 } 2407 2408 static uint32_t 2409 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2410 void *arg, uint32_t evt) 2411 { 2412 struct lpfc_hba *phba = vport->phba; 2413 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2414 2415 /* flush the target */ 2416 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], 2417 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2418 2419 /* Treat like rcv logo */ 2420 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2421 return ndlp->nlp_state; 2422 } 2423 2424 static uint32_t 2425 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2426 struct lpfc_nodelist *ndlp, 2427 void *arg, 2428 uint32_t evt) 2429 { 2430 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2431 2432 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2433 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2434 spin_lock_irq(shost->host_lock); 2435 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2436 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2437 spin_unlock_irq(shost->host_lock); 2438 lpfc_disc_set_adisc(vport, ndlp); 2439 return ndlp->nlp_state; 2440 } 2441 2442 static uint32_t 2443 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2444 void *arg, uint32_t evt) 2445 { 2446 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2447 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2448 2449 /* Ignore PLOGI if we have an outstanding LOGO */ 2450 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2451 return ndlp->nlp_state; 2452 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2453 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2454 spin_lock_irq(shost->host_lock); 2455 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2456 spin_unlock_irq(shost->host_lock); 2457 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2458 /* send PLOGI immediately, move to PLOGI issue state */ 2459 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2460 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2461 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2462 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2463 } 2464 } 2465 return ndlp->nlp_state; 2466 } 2467 2468 static uint32_t 2469 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2470 void *arg, uint32_t evt) 2471 { 2472 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2473 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2474 struct ls_rjt stat; 2475 2476 memset(&stat, 0, sizeof (struct ls_rjt)); 2477 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2478 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2479 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2480 2481 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2482 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2483 spin_lock_irq(shost->host_lock); 2484 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2485 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2486 spin_unlock_irq(shost->host_lock); 2487 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2488 lpfc_issue_els_adisc(vport, ndlp, 0); 2489 } else { 2490 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2491 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2492 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2493 } 2494 } 2495 return ndlp->nlp_state; 2496 } 2497 2498 static uint32_t 2499 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2500 void *arg, uint32_t evt) 2501 { 2502 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2503 2504 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2505 return ndlp->nlp_state; 2506 } 2507 2508 static uint32_t 2509 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2510 void *arg, uint32_t evt) 2511 { 2512 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2513 2514 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2515 /* 2516 * Do not start discovery if discovery is about to start 2517 * or discovery in progress for this node. Starting discovery 2518 * here will affect the counting of discovery threads. 2519 */ 2520 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2521 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2522 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2523 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2524 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2525 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2526 lpfc_issue_els_adisc(vport, ndlp, 0); 2527 } else { 2528 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2529 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2530 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2531 } 2532 } 2533 return ndlp->nlp_state; 2534 } 2535 2536 static uint32_t 2537 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2538 void *arg, uint32_t evt) 2539 { 2540 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2541 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2542 2543 spin_lock_irq(shost->host_lock); 2544 ndlp->nlp_flag |= NLP_LOGO_ACC; 2545 spin_unlock_irq(shost->host_lock); 2546 2547 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2548 2549 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2550 mod_timer(&ndlp->nlp_delayfunc, 2551 jiffies + msecs_to_jiffies(1000 * 1)); 2552 spin_lock_irq(shost->host_lock); 2553 ndlp->nlp_flag |= NLP_DELAY_TMO; 2554 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2555 spin_unlock_irq(shost->host_lock); 2556 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2557 } else { 2558 spin_lock_irq(shost->host_lock); 2559 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2560 spin_unlock_irq(shost->host_lock); 2561 } 2562 return ndlp->nlp_state; 2563 } 2564 2565 static uint32_t 2566 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2567 void *arg, uint32_t evt) 2568 { 2569 struct lpfc_iocbq *cmdiocb, *rspiocb; 2570 IOCB_t *irsp; 2571 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2572 2573 cmdiocb = (struct lpfc_iocbq *) arg; 2574 rspiocb = cmdiocb->context_un.rsp_iocb; 2575 2576 irsp = &rspiocb->iocb; 2577 if (irsp->ulpStatus) { 2578 spin_lock_irq(shost->host_lock); 2579 ndlp->nlp_flag |= NLP_DEFER_RM; 2580 spin_unlock_irq(shost->host_lock); 2581 return NLP_STE_FREED_NODE; 2582 } 2583 return ndlp->nlp_state; 2584 } 2585 2586 static uint32_t 2587 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2588 void *arg, uint32_t evt) 2589 { 2590 struct lpfc_iocbq *cmdiocb, *rspiocb; 2591 IOCB_t *irsp; 2592 2593 cmdiocb = (struct lpfc_iocbq *) arg; 2594 rspiocb = cmdiocb->context_un.rsp_iocb; 2595 2596 irsp = &rspiocb->iocb; 2597 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2598 lpfc_drop_node(vport, ndlp); 2599 return NLP_STE_FREED_NODE; 2600 } 2601 return ndlp->nlp_state; 2602 } 2603 2604 static uint32_t 2605 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2606 void *arg, uint32_t evt) 2607 { 2608 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2609 2610 /* For the fabric port just clear the fc flags. */ 2611 if (ndlp->nlp_DID == Fabric_DID) { 2612 spin_lock_irq(shost->host_lock); 2613 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2614 spin_unlock_irq(shost->host_lock); 2615 } 2616 lpfc_unreg_rpi(vport, ndlp); 2617 return ndlp->nlp_state; 2618 } 2619 2620 static uint32_t 2621 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2622 void *arg, uint32_t evt) 2623 { 2624 struct lpfc_iocbq *cmdiocb, *rspiocb; 2625 IOCB_t *irsp; 2626 2627 cmdiocb = (struct lpfc_iocbq *) arg; 2628 rspiocb = cmdiocb->context_un.rsp_iocb; 2629 2630 irsp = &rspiocb->iocb; 2631 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2632 lpfc_drop_node(vport, ndlp); 2633 return NLP_STE_FREED_NODE; 2634 } 2635 return ndlp->nlp_state; 2636 } 2637 2638 static uint32_t 2639 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2640 struct lpfc_nodelist *ndlp, 2641 void *arg, uint32_t evt) 2642 { 2643 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2644 MAILBOX_t *mb = &pmb->u.mb; 2645 2646 if (!mb->mbxStatus) { 2647 /* SLI4 ports have preallocated logical rpis. */ 2648 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2649 ndlp->nlp_rpi = mb->un.varWords[0]; 2650 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2651 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 2652 lpfc_unreg_rpi(vport, ndlp); 2653 } 2654 } else { 2655 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2656 lpfc_drop_node(vport, ndlp); 2657 return NLP_STE_FREED_NODE; 2658 } 2659 } 2660 return ndlp->nlp_state; 2661 } 2662 2663 static uint32_t 2664 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2665 void *arg, uint32_t evt) 2666 { 2667 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2668 2669 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2670 spin_lock_irq(shost->host_lock); 2671 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2672 spin_unlock_irq(shost->host_lock); 2673 return ndlp->nlp_state; 2674 } 2675 lpfc_drop_node(vport, ndlp); 2676 return NLP_STE_FREED_NODE; 2677 } 2678 2679 static uint32_t 2680 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2681 void *arg, uint32_t evt) 2682 { 2683 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2684 2685 /* Don't do anything that will mess up processing of the 2686 * previous RSCN. 2687 */ 2688 if (vport->fc_flag & FC_RSCN_DEFERRED) 2689 return ndlp->nlp_state; 2690 2691 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2692 spin_lock_irq(shost->host_lock); 2693 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2694 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2695 spin_unlock_irq(shost->host_lock); 2696 return ndlp->nlp_state; 2697 } 2698 2699 2700 /* This next section defines the NPort Discovery State Machine */ 2701 2702 /* There are 4 different double linked lists nodelist entries can reside on. 2703 * The plogi list and adisc list are used when Link Up discovery or RSCN 2704 * processing is needed. Each list holds the nodes that we will send PLOGI 2705 * or ADISC on. These lists will keep track of what nodes will be effected 2706 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2707 * The unmapped_list will contain all nodes that we have successfully logged 2708 * into at the Fibre Channel level. The mapped_list will contain all nodes 2709 * that are mapped FCP targets. 2710 */ 2711 /* 2712 * The bind list is a list of undiscovered (potentially non-existent) nodes 2713 * that we have saved binding information on. This information is used when 2714 * nodes transition from the unmapped to the mapped list. 2715 */ 2716 /* For UNUSED_NODE state, the node has just been allocated . 2717 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2718 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2719 * and put on the unmapped list. For ADISC processing, the node is taken off 2720 * the ADISC list and placed on either the mapped or unmapped list (depending 2721 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2722 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2723 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2724 * node, the node is taken off the unmapped list. The binding list is checked 2725 * for a valid binding, or a binding is automatically assigned. If binding 2726 * assignment is unsuccessful, the node is left on the unmapped list. If 2727 * binding assignment is successful, the associated binding list entry (if 2728 * any) is removed, and the node is placed on the mapped list. 2729 */ 2730 /* 2731 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2732 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2733 * expire, all effected nodes will receive a DEVICE_RM event. 2734 */ 2735 /* 2736 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2737 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2738 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2739 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2740 * we will first process the ADISC list. 32 entries are processed initially and 2741 * ADISC is initited for each one. Completions / Events for each node are 2742 * funnelled thru the state machine. As each node finishes ADISC processing, it 2743 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2744 * waiting, and the ADISC list count is identically 0, then we are done. For 2745 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2746 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2747 * list. 32 entries are processed initially and PLOGI is initited for each one. 2748 * Completions / Events for each node are funnelled thru the state machine. As 2749 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2750 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2751 * indentically 0, then we are done. We have now completed discovery / RSCN 2752 * handling. Upon completion, ALL nodes should be on either the mapped or 2753 * unmapped lists. 2754 */ 2755 2756 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2757 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2758 /* Action routine Event Current State */ 2759 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2760 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2761 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2762 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2763 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2764 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2765 lpfc_disc_illegal, /* CMPL_PLOGI */ 2766 lpfc_disc_illegal, /* CMPL_PRLI */ 2767 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2768 lpfc_disc_illegal, /* CMPL_ADISC */ 2769 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2770 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2771 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2772 2773 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2774 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2775 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2776 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2777 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2778 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2779 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2780 lpfc_disc_illegal, /* CMPL_PRLI */ 2781 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2782 lpfc_disc_illegal, /* CMPL_ADISC */ 2783 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2784 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2785 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2786 2787 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2788 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 2789 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 2790 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 2791 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 2792 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 2793 lpfc_disc_illegal, /* CMPL_PLOGI */ 2794 lpfc_disc_illegal, /* CMPL_PRLI */ 2795 lpfc_disc_illegal, /* CMPL_LOGO */ 2796 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 2797 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2798 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 2799 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 2800 2801 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 2802 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 2803 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 2804 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 2805 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 2806 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 2807 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2808 lpfc_disc_illegal, /* CMPL_PRLI */ 2809 lpfc_disc_illegal, /* CMPL_LOGO */ 2810 lpfc_disc_illegal, /* CMPL_ADISC */ 2811 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 2812 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 2813 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 2814 2815 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 2816 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 2817 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 2818 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 2819 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 2820 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 2821 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2822 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 2823 lpfc_disc_illegal, /* CMPL_LOGO */ 2824 lpfc_disc_illegal, /* CMPL_ADISC */ 2825 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2826 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 2827 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 2828 2829 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 2830 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 2831 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 2832 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 2833 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 2834 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 2835 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2836 lpfc_disc_illegal, /* CMPL_PRLI */ 2837 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 2838 lpfc_disc_illegal, /* CMPL_ADISC */ 2839 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2840 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 2841 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 2842 2843 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 2844 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 2845 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 2846 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 2847 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 2848 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 2849 lpfc_disc_illegal, /* CMPL_PLOGI */ 2850 lpfc_disc_illegal, /* CMPL_PRLI */ 2851 lpfc_disc_illegal, /* CMPL_LOGO */ 2852 lpfc_disc_illegal, /* CMPL_ADISC */ 2853 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2854 lpfc_disc_illegal, /* DEVICE_RM */ 2855 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 2856 2857 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 2858 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 2859 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 2860 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 2861 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 2862 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 2863 lpfc_disc_illegal, /* CMPL_PLOGI */ 2864 lpfc_disc_illegal, /* CMPL_PRLI */ 2865 lpfc_disc_illegal, /* CMPL_LOGO */ 2866 lpfc_disc_illegal, /* CMPL_ADISC */ 2867 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2868 lpfc_disc_illegal, /* DEVICE_RM */ 2869 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 2870 2871 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 2872 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 2873 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 2874 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 2875 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 2876 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 2877 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 2878 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 2879 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 2880 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 2881 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 2882 lpfc_device_rm_npr_node, /* DEVICE_RM */ 2883 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 2884 }; 2885 2886 int 2887 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2888 void *arg, uint32_t evt) 2889 { 2890 uint32_t cur_state, rc; 2891 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 2892 uint32_t); 2893 uint32_t got_ndlp = 0; 2894 2895 if (lpfc_nlp_get(ndlp)) 2896 got_ndlp = 1; 2897 2898 cur_state = ndlp->nlp_state; 2899 2900 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 2901 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2902 "0211 DSM in event x%x on NPort x%x in " 2903 "state %d rpi x%x Data: x%x x%x\n", 2904 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, 2905 ndlp->nlp_flag, ndlp->nlp_fc4_type); 2906 2907 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2908 "DSM in: evt:%d ste:%d did:x%x", 2909 evt, cur_state, ndlp->nlp_DID); 2910 2911 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 2912 rc = (func) (vport, ndlp, arg, evt); 2913 2914 /* DSM out state <rc> on NPort <nlp_DID> */ 2915 if (got_ndlp) { 2916 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2917 "0212 DSM out state %d on NPort x%x " 2918 "rpi x%x Data: x%x\n", 2919 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag); 2920 2921 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2922 "DSM out: ste:%d did:x%x flg:x%x", 2923 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2924 /* Decrement the ndlp reference count held for this function */ 2925 lpfc_nlp_put(ndlp); 2926 } else { 2927 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2928 "0213 DSM out state %d on NPort free\n", rc); 2929 2930 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2931 "DSM out: ste:%d did:x%x flg:x%x", 2932 rc, 0, 0); 2933 } 2934 2935 return rc; 2936 } 2937