1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2018 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Limited 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->context2 = 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->context1; 539 ndlp = (struct lpfc_nodelist *) mboxq->context2; 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 (phba->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 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 840 return 0; 841 } 842 843 if (!(vport->fc_flag & FC_PT2PT)) { 844 /* Check config parameter use-adisc or FCP-2 */ 845 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) || 846 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 847 (ndlp->nlp_type & NLP_FCP_TARGET))) { 848 spin_lock_irq(shost->host_lock); 849 ndlp->nlp_flag |= NLP_NPR_ADISC; 850 spin_unlock_irq(shost->host_lock); 851 return 1; 852 } 853 } 854 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 855 lpfc_unreg_rpi(vport, ndlp); 856 return 0; 857 } 858 859 /** 860 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 861 * @phba : Pointer to lpfc_hba structure. 862 * @vport: Pointer to lpfc_vport structure. 863 * @rpi : rpi to be release. 864 * 865 * This function will send a unreg_login mailbox command to the firmware 866 * to release a rpi. 867 **/ 868 void 869 lpfc_release_rpi(struct lpfc_hba *phba, 870 struct lpfc_vport *vport, 871 uint16_t rpi) 872 { 873 LPFC_MBOXQ_t *pmb; 874 int rc; 875 876 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 877 GFP_KERNEL); 878 if (!pmb) 879 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 880 "2796 mailbox memory allocation failed \n"); 881 else { 882 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 883 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 884 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 885 if (rc == MBX_NOT_FINISHED) 886 mempool_free(pmb, phba->mbox_mem_pool); 887 } 888 } 889 890 static uint32_t 891 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 892 void *arg, uint32_t evt) 893 { 894 struct lpfc_hba *phba; 895 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 896 uint16_t rpi; 897 898 phba = vport->phba; 899 /* Release the RPI if reglogin completing */ 900 if (!(phba->pport->load_flag & FC_UNLOADING) && 901 (evt == NLP_EVT_CMPL_REG_LOGIN) && 902 (!pmb->u.mb.mbxStatus)) { 903 rpi = pmb->u.mb.un.varWords[0]; 904 lpfc_release_rpi(phba, vport, rpi); 905 } 906 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 907 "0271 Illegal State Transition: node x%x " 908 "event x%x, state x%x Data: x%x x%x\n", 909 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 910 ndlp->nlp_flag); 911 return ndlp->nlp_state; 912 } 913 914 static uint32_t 915 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 916 void *arg, uint32_t evt) 917 { 918 /* This transition is only legal if we previously 919 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 920 * working on the same NPortID, do nothing for this thread 921 * to stop it. 922 */ 923 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 924 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 925 "0272 Illegal State Transition: node x%x " 926 "event x%x, state x%x Data: x%x x%x\n", 927 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 928 ndlp->nlp_flag); 929 } 930 return ndlp->nlp_state; 931 } 932 933 /* Start of Discovery State Machine routines */ 934 935 static uint32_t 936 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 937 void *arg, uint32_t evt) 938 { 939 struct lpfc_iocbq *cmdiocb; 940 941 cmdiocb = (struct lpfc_iocbq *) arg; 942 943 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 944 return ndlp->nlp_state; 945 } 946 return NLP_STE_FREED_NODE; 947 } 948 949 static uint32_t 950 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 951 void *arg, uint32_t evt) 952 { 953 lpfc_issue_els_logo(vport, ndlp, 0); 954 return ndlp->nlp_state; 955 } 956 957 static uint32_t 958 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 959 void *arg, uint32_t evt) 960 { 961 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 962 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 963 964 spin_lock_irq(shost->host_lock); 965 ndlp->nlp_flag |= NLP_LOGO_ACC; 966 spin_unlock_irq(shost->host_lock); 967 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 968 969 return ndlp->nlp_state; 970 } 971 972 static uint32_t 973 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 974 void *arg, uint32_t evt) 975 { 976 return NLP_STE_FREED_NODE; 977 } 978 979 static uint32_t 980 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 981 void *arg, uint32_t evt) 982 { 983 return NLP_STE_FREED_NODE; 984 } 985 986 static uint32_t 987 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 988 struct lpfc_nodelist *ndlp, 989 void *arg, uint32_t evt) 990 { 991 return ndlp->nlp_state; 992 } 993 994 static uint32_t 995 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 996 void *arg, uint32_t evt) 997 { 998 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 999 struct lpfc_hba *phba = vport->phba; 1000 struct lpfc_iocbq *cmdiocb = arg; 1001 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1002 uint32_t *lp = (uint32_t *) pcmd->virt; 1003 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1004 struct ls_rjt stat; 1005 int port_cmp; 1006 1007 memset(&stat, 0, sizeof (struct ls_rjt)); 1008 1009 /* For a PLOGI, we only accept if our portname is less 1010 * than the remote portname. 1011 */ 1012 phba->fc_stat.elsLogiCol++; 1013 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1014 sizeof(struct lpfc_name)); 1015 1016 if (port_cmp >= 0) { 1017 /* Reject this request because the remote node will accept 1018 ours */ 1019 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1020 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1021 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1022 NULL); 1023 } else { 1024 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1025 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 1026 (vport->num_disc_nodes)) { 1027 spin_lock_irq(shost->host_lock); 1028 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1029 spin_unlock_irq(shost->host_lock); 1030 /* Check if there are more PLOGIs to be sent */ 1031 lpfc_more_plogi(vport); 1032 if (vport->num_disc_nodes == 0) { 1033 spin_lock_irq(shost->host_lock); 1034 vport->fc_flag &= ~FC_NDISC_ACTIVE; 1035 spin_unlock_irq(shost->host_lock); 1036 lpfc_can_disctmo(vport); 1037 lpfc_end_rscn(vport); 1038 } 1039 } 1040 } /* If our portname was less */ 1041 1042 return ndlp->nlp_state; 1043 } 1044 1045 static uint32_t 1046 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1047 void *arg, uint32_t evt) 1048 { 1049 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1050 struct ls_rjt stat; 1051 1052 memset(&stat, 0, sizeof (struct ls_rjt)); 1053 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1054 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1055 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1056 return ndlp->nlp_state; 1057 } 1058 1059 static uint32_t 1060 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1061 void *arg, uint32_t evt) 1062 { 1063 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1064 1065 /* software abort outstanding PLOGI */ 1066 lpfc_els_abort(vport->phba, ndlp); 1067 1068 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1069 return ndlp->nlp_state; 1070 } 1071 1072 static uint32_t 1073 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1074 void *arg, uint32_t evt) 1075 { 1076 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1077 struct lpfc_hba *phba = vport->phba; 1078 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1079 1080 /* software abort outstanding PLOGI */ 1081 lpfc_els_abort(phba, ndlp); 1082 1083 if (evt == NLP_EVT_RCV_LOGO) { 1084 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1085 } else { 1086 lpfc_issue_els_logo(vport, ndlp, 0); 1087 } 1088 1089 /* Put ndlp in npr state set plogi timer for 1 sec */ 1090 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1091 spin_lock_irq(shost->host_lock); 1092 ndlp->nlp_flag |= NLP_DELAY_TMO; 1093 spin_unlock_irq(shost->host_lock); 1094 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1095 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1096 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1097 1098 return ndlp->nlp_state; 1099 } 1100 1101 static uint32_t 1102 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1103 struct lpfc_nodelist *ndlp, 1104 void *arg, 1105 uint32_t evt) 1106 { 1107 struct lpfc_hba *phba = vport->phba; 1108 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1109 struct lpfc_iocbq *cmdiocb, *rspiocb; 1110 struct lpfc_dmabuf *pcmd, *prsp, *mp; 1111 uint32_t *lp; 1112 uint32_t vid, flag; 1113 IOCB_t *irsp; 1114 struct serv_parm *sp; 1115 uint32_t ed_tov; 1116 LPFC_MBOXQ_t *mbox; 1117 int rc; 1118 1119 cmdiocb = (struct lpfc_iocbq *) arg; 1120 rspiocb = cmdiocb->context_un.rsp_iocb; 1121 1122 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1123 /* Recovery from PLOGI collision logic */ 1124 return ndlp->nlp_state; 1125 } 1126 1127 irsp = &rspiocb->iocb; 1128 1129 if (irsp->ulpStatus) 1130 goto out; 1131 1132 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1133 1134 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1135 if (!prsp) 1136 goto out; 1137 1138 lp = (uint32_t *) prsp->virt; 1139 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1140 1141 /* Some switches have FDMI servers returning 0 for WWN */ 1142 if ((ndlp->nlp_DID != FDMI_DID) && 1143 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1144 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1145 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1146 "0142 PLOGI RSP: Invalid WWN.\n"); 1147 goto out; 1148 } 1149 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1150 goto out; 1151 /* PLOGI chkparm OK */ 1152 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1153 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1154 ndlp->nlp_DID, ndlp->nlp_state, 1155 ndlp->nlp_flag, ndlp->nlp_rpi); 1156 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1157 ndlp->nlp_fcp_info |= CLASS2; 1158 else 1159 ndlp->nlp_fcp_info |= CLASS3; 1160 1161 ndlp->nlp_class_sup = 0; 1162 if (sp->cls1.classValid) 1163 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1164 if (sp->cls2.classValid) 1165 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1166 if (sp->cls3.classValid) 1167 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1168 if (sp->cls4.classValid) 1169 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1170 ndlp->nlp_maxframe = 1171 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1172 1173 if ((vport->fc_flag & FC_PT2PT) && 1174 (vport->fc_flag & FC_PT2PT_PLOGI)) { 1175 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1176 if (sp->cmn.edtovResolution) { 1177 /* E_D_TOV ticks are in nanoseconds */ 1178 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1179 } 1180 1181 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 1182 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1183 sp->cmn.valid_vendor_ver_level) { 1184 vid = be32_to_cpu(sp->un.vv.vid); 1185 flag = be32_to_cpu(sp->un.vv.flags); 1186 if ((vid == LPFC_VV_EMLX_ID) && 1187 (flag & LPFC_VV_SUPPRESS_RSP)) 1188 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 1189 } 1190 1191 /* 1192 * Use the larger EDTOV 1193 * RATOV = 2 * EDTOV for pt-to-pt 1194 */ 1195 if (ed_tov > phba->fc_edtov) 1196 phba->fc_edtov = ed_tov; 1197 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1198 1199 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1200 1201 /* Issue config_link / reg_vfi to account for updated TOV's */ 1202 if (phba->sli_rev == LPFC_SLI_REV4) { 1203 lpfc_issue_reg_vfi(vport); 1204 } else { 1205 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1206 if (!mbox) { 1207 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1208 "0133 PLOGI: no memory " 1209 "for config_link " 1210 "Data: x%x x%x x%x x%x\n", 1211 ndlp->nlp_DID, ndlp->nlp_state, 1212 ndlp->nlp_flag, ndlp->nlp_rpi); 1213 goto out; 1214 } 1215 1216 lpfc_config_link(phba, mbox); 1217 1218 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1219 mbox->vport = vport; 1220 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1221 if (rc == MBX_NOT_FINISHED) { 1222 mempool_free(mbox, phba->mbox_mem_pool); 1223 goto out; 1224 } 1225 } 1226 } 1227 1228 lpfc_unreg_rpi(vport, ndlp); 1229 1230 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1231 if (!mbox) { 1232 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1233 "0018 PLOGI: no memory for reg_login " 1234 "Data: x%x x%x x%x x%x\n", 1235 ndlp->nlp_DID, ndlp->nlp_state, 1236 ndlp->nlp_flag, ndlp->nlp_rpi); 1237 goto out; 1238 } 1239 1240 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID, 1241 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1242 switch (ndlp->nlp_DID) { 1243 case NameServer_DID: 1244 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1245 break; 1246 case FDMI_DID: 1247 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1248 break; 1249 default: 1250 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1251 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1252 } 1253 mbox->context2 = lpfc_nlp_get(ndlp); 1254 mbox->vport = vport; 1255 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1256 != MBX_NOT_FINISHED) { 1257 lpfc_nlp_set_state(vport, ndlp, 1258 NLP_STE_REG_LOGIN_ISSUE); 1259 return ndlp->nlp_state; 1260 } 1261 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1262 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1263 /* decrement node reference count to the failed mbox 1264 * command 1265 */ 1266 lpfc_nlp_put(ndlp); 1267 mp = (struct lpfc_dmabuf *) mbox->context1; 1268 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1269 kfree(mp); 1270 mempool_free(mbox, phba->mbox_mem_pool); 1271 1272 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1273 "0134 PLOGI: cannot issue reg_login " 1274 "Data: x%x x%x x%x x%x\n", 1275 ndlp->nlp_DID, ndlp->nlp_state, 1276 ndlp->nlp_flag, ndlp->nlp_rpi); 1277 } else { 1278 mempool_free(mbox, phba->mbox_mem_pool); 1279 1280 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1281 "0135 PLOGI: cannot format reg_login " 1282 "Data: x%x x%x x%x x%x\n", 1283 ndlp->nlp_DID, ndlp->nlp_state, 1284 ndlp->nlp_flag, ndlp->nlp_rpi); 1285 } 1286 1287 1288 out: 1289 if (ndlp->nlp_DID == NameServer_DID) { 1290 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1291 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1292 "0261 Cannot Register NameServer login\n"); 1293 } 1294 1295 /* 1296 ** In case the node reference counter does not go to zero, ensure that 1297 ** the stale state for the node is not processed. 1298 */ 1299 1300 ndlp->nlp_prev_state = ndlp->nlp_state; 1301 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1302 spin_lock_irq(shost->host_lock); 1303 ndlp->nlp_flag |= NLP_DEFER_RM; 1304 spin_unlock_irq(shost->host_lock); 1305 return NLP_STE_FREED_NODE; 1306 } 1307 1308 static uint32_t 1309 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1310 void *arg, uint32_t evt) 1311 { 1312 return ndlp->nlp_state; 1313 } 1314 1315 static uint32_t 1316 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1317 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1318 { 1319 struct lpfc_hba *phba; 1320 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1321 MAILBOX_t *mb = &pmb->u.mb; 1322 uint16_t rpi; 1323 1324 phba = vport->phba; 1325 /* Release the RPI */ 1326 if (!(phba->pport->load_flag & FC_UNLOADING) && 1327 !mb->mbxStatus) { 1328 rpi = pmb->u.mb.un.varWords[0]; 1329 lpfc_release_rpi(phba, vport, rpi); 1330 } 1331 return ndlp->nlp_state; 1332 } 1333 1334 static uint32_t 1335 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1336 void *arg, uint32_t evt) 1337 { 1338 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1339 1340 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1341 spin_lock_irq(shost->host_lock); 1342 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1343 spin_unlock_irq(shost->host_lock); 1344 return ndlp->nlp_state; 1345 } else { 1346 /* software abort outstanding PLOGI */ 1347 lpfc_els_abort(vport->phba, ndlp); 1348 1349 lpfc_drop_node(vport, ndlp); 1350 return NLP_STE_FREED_NODE; 1351 } 1352 } 1353 1354 static uint32_t 1355 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1356 struct lpfc_nodelist *ndlp, 1357 void *arg, 1358 uint32_t evt) 1359 { 1360 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1361 struct lpfc_hba *phba = vport->phba; 1362 1363 /* Don't do anything that will mess up processing of the 1364 * previous RSCN. 1365 */ 1366 if (vport->fc_flag & FC_RSCN_DEFERRED) 1367 return ndlp->nlp_state; 1368 1369 /* software abort outstanding PLOGI */ 1370 lpfc_els_abort(phba, ndlp); 1371 1372 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1373 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1374 spin_lock_irq(shost->host_lock); 1375 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1376 spin_unlock_irq(shost->host_lock); 1377 1378 return ndlp->nlp_state; 1379 } 1380 1381 static uint32_t 1382 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1383 void *arg, uint32_t evt) 1384 { 1385 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1386 struct lpfc_hba *phba = vport->phba; 1387 struct lpfc_iocbq *cmdiocb; 1388 1389 /* software abort outstanding ADISC */ 1390 lpfc_els_abort(phba, ndlp); 1391 1392 cmdiocb = (struct lpfc_iocbq *) arg; 1393 1394 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1395 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1396 spin_lock_irq(shost->host_lock); 1397 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1398 spin_unlock_irq(shost->host_lock); 1399 if (vport->num_disc_nodes) 1400 lpfc_more_adisc(vport); 1401 } 1402 return ndlp->nlp_state; 1403 } 1404 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1405 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1406 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1407 1408 return ndlp->nlp_state; 1409 } 1410 1411 static uint32_t 1412 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1413 void *arg, uint32_t evt) 1414 { 1415 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1416 1417 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1418 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1419 return ndlp->nlp_state; 1420 } 1421 1422 static uint32_t 1423 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1424 void *arg, uint32_t evt) 1425 { 1426 struct lpfc_hba *phba = vport->phba; 1427 struct lpfc_iocbq *cmdiocb; 1428 1429 cmdiocb = (struct lpfc_iocbq *) arg; 1430 1431 /* software abort outstanding ADISC */ 1432 lpfc_els_abort(phba, ndlp); 1433 1434 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1435 return ndlp->nlp_state; 1436 } 1437 1438 static uint32_t 1439 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1440 struct lpfc_nodelist *ndlp, 1441 void *arg, uint32_t evt) 1442 { 1443 struct lpfc_iocbq *cmdiocb; 1444 1445 cmdiocb = (struct lpfc_iocbq *) arg; 1446 1447 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1448 return ndlp->nlp_state; 1449 } 1450 1451 static uint32_t 1452 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1453 void *arg, uint32_t evt) 1454 { 1455 struct lpfc_iocbq *cmdiocb; 1456 1457 cmdiocb = (struct lpfc_iocbq *) arg; 1458 1459 /* Treat like rcv logo */ 1460 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1461 return ndlp->nlp_state; 1462 } 1463 1464 static uint32_t 1465 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1466 struct lpfc_nodelist *ndlp, 1467 void *arg, uint32_t evt) 1468 { 1469 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1470 struct lpfc_hba *phba = vport->phba; 1471 struct lpfc_iocbq *cmdiocb, *rspiocb; 1472 IOCB_t *irsp; 1473 ADISC *ap; 1474 int rc; 1475 1476 cmdiocb = (struct lpfc_iocbq *) arg; 1477 rspiocb = cmdiocb->context_un.rsp_iocb; 1478 1479 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1480 irsp = &rspiocb->iocb; 1481 1482 if ((irsp->ulpStatus) || 1483 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1484 /* 1 sec timeout */ 1485 mod_timer(&ndlp->nlp_delayfunc, 1486 jiffies + msecs_to_jiffies(1000)); 1487 spin_lock_irq(shost->host_lock); 1488 ndlp->nlp_flag |= NLP_DELAY_TMO; 1489 spin_unlock_irq(shost->host_lock); 1490 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1491 1492 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name)); 1493 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name)); 1494 1495 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1496 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1497 lpfc_unreg_rpi(vport, ndlp); 1498 return ndlp->nlp_state; 1499 } 1500 1501 if (phba->sli_rev == LPFC_SLI_REV4) { 1502 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1503 if (rc) { 1504 /* Stay in state and retry. */ 1505 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1506 return ndlp->nlp_state; 1507 } 1508 } 1509 1510 if (ndlp->nlp_type & NLP_FCP_TARGET) { 1511 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1512 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1513 } else { 1514 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1515 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1516 } 1517 1518 return ndlp->nlp_state; 1519 } 1520 1521 static uint32_t 1522 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1523 void *arg, uint32_t evt) 1524 { 1525 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1526 1527 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1528 spin_lock_irq(shost->host_lock); 1529 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1530 spin_unlock_irq(shost->host_lock); 1531 return ndlp->nlp_state; 1532 } else { 1533 /* software abort outstanding ADISC */ 1534 lpfc_els_abort(vport->phba, ndlp); 1535 1536 lpfc_drop_node(vport, ndlp); 1537 return NLP_STE_FREED_NODE; 1538 } 1539 } 1540 1541 static uint32_t 1542 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1543 struct lpfc_nodelist *ndlp, 1544 void *arg, 1545 uint32_t evt) 1546 { 1547 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1548 struct lpfc_hba *phba = vport->phba; 1549 1550 /* Don't do anything that will mess up processing of the 1551 * previous RSCN. 1552 */ 1553 if (vport->fc_flag & FC_RSCN_DEFERRED) 1554 return ndlp->nlp_state; 1555 1556 /* software abort outstanding ADISC */ 1557 lpfc_els_abort(phba, ndlp); 1558 1559 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1560 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1561 spin_lock_irq(shost->host_lock); 1562 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1563 spin_unlock_irq(shost->host_lock); 1564 lpfc_disc_set_adisc(vport, ndlp); 1565 return ndlp->nlp_state; 1566 } 1567 1568 static uint32_t 1569 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1570 struct lpfc_nodelist *ndlp, 1571 void *arg, 1572 uint32_t evt) 1573 { 1574 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1575 1576 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1577 return ndlp->nlp_state; 1578 } 1579 1580 static uint32_t 1581 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1582 struct lpfc_nodelist *ndlp, 1583 void *arg, 1584 uint32_t evt) 1585 { 1586 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1587 struct ls_rjt stat; 1588 1589 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1590 return ndlp->nlp_state; 1591 } 1592 if (vport->phba->nvmet_support) { 1593 /* NVME Target mode. Handle and respond to the PRLI and 1594 * transition to UNMAPPED provided the RPI has completed 1595 * registration. 1596 */ 1597 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 1598 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1599 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1600 } else { 1601 /* RPI registration has not completed. Reject the PRLI 1602 * to prevent an illegal state transition when the 1603 * rpi registration does complete. 1604 */ 1605 memset(&stat, 0, sizeof(struct ls_rjt)); 1606 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1607 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1608 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1609 ndlp, NULL); 1610 return ndlp->nlp_state; 1611 } 1612 } else { 1613 /* Initiator mode. */ 1614 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1615 } 1616 return ndlp->nlp_state; 1617 } 1618 1619 static uint32_t 1620 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1621 struct lpfc_nodelist *ndlp, 1622 void *arg, 1623 uint32_t evt) 1624 { 1625 struct lpfc_hba *phba = vport->phba; 1626 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1627 LPFC_MBOXQ_t *mb; 1628 LPFC_MBOXQ_t *nextmb; 1629 struct lpfc_dmabuf *mp; 1630 1631 cmdiocb = (struct lpfc_iocbq *) arg; 1632 1633 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1634 if ((mb = phba->sli.mbox_active)) { 1635 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1636 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1637 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1638 lpfc_nlp_put(ndlp); 1639 mb->context2 = NULL; 1640 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1641 } 1642 } 1643 1644 spin_lock_irq(&phba->hbalock); 1645 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1646 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1647 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1648 mp = (struct lpfc_dmabuf *) (mb->context1); 1649 if (mp) { 1650 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 1651 kfree(mp); 1652 } 1653 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1654 lpfc_nlp_put(ndlp); 1655 list_del(&mb->list); 1656 phba->sli.mboxq_cnt--; 1657 mempool_free(mb, phba->mbox_mem_pool); 1658 } 1659 } 1660 spin_unlock_irq(&phba->hbalock); 1661 1662 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1663 return ndlp->nlp_state; 1664 } 1665 1666 static uint32_t 1667 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1668 struct lpfc_nodelist *ndlp, 1669 void *arg, 1670 uint32_t evt) 1671 { 1672 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1673 1674 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1675 return ndlp->nlp_state; 1676 } 1677 1678 static uint32_t 1679 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1680 struct lpfc_nodelist *ndlp, 1681 void *arg, 1682 uint32_t evt) 1683 { 1684 struct lpfc_iocbq *cmdiocb; 1685 1686 cmdiocb = (struct lpfc_iocbq *) arg; 1687 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1688 return ndlp->nlp_state; 1689 } 1690 1691 static uint32_t 1692 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1693 struct lpfc_nodelist *ndlp, 1694 void *arg, 1695 uint32_t evt) 1696 { 1697 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1698 struct lpfc_hba *phba = vport->phba; 1699 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1700 MAILBOX_t *mb = &pmb->u.mb; 1701 uint32_t did = mb->un.varWords[1]; 1702 int rc = 0; 1703 1704 if (mb->mbxStatus) { 1705 /* RegLogin failed */ 1706 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1707 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1708 "x%x\n", 1709 did, mb->mbxStatus, vport->port_state, 1710 mb->un.varRegLogin.vpi, 1711 mb->un.varRegLogin.rpi); 1712 /* 1713 * If RegLogin failed due to lack of HBA resources do not 1714 * retry discovery. 1715 */ 1716 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1717 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1718 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1719 return ndlp->nlp_state; 1720 } 1721 1722 /* Put ndlp in npr state set plogi timer for 1 sec */ 1723 mod_timer(&ndlp->nlp_delayfunc, 1724 jiffies + msecs_to_jiffies(1000 * 1)); 1725 spin_lock_irq(shost->host_lock); 1726 ndlp->nlp_flag |= NLP_DELAY_TMO; 1727 spin_unlock_irq(shost->host_lock); 1728 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1729 1730 lpfc_issue_els_logo(vport, ndlp, 0); 1731 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1732 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1733 return ndlp->nlp_state; 1734 } 1735 1736 /* SLI4 ports have preallocated logical rpis. */ 1737 if (phba->sli_rev < LPFC_SLI_REV4) 1738 ndlp->nlp_rpi = mb->un.varWords[0]; 1739 1740 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1741 1742 /* Only if we are not a fabric nport do we issue PRLI */ 1743 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1744 "3066 RegLogin Complete on x%x x%x x%x\n", 1745 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 1746 if (!(ndlp->nlp_type & NLP_FABRIC) && 1747 (phba->nvmet_support == 0)) { 1748 /* The driver supports FCP and NVME concurrently. If the 1749 * ndlp's nlp_fc4_type is still zero, the driver doesn't 1750 * know what PRLI to send yet. Figure that out now and 1751 * call PRLI depending on the outcome. 1752 */ 1753 if (vport->fc_flag & FC_PT2PT) { 1754 /* If we are pt2pt, there is no Fabric to determine 1755 * the FC4 type of the remote nport. So if NVME 1756 * is configured try it. 1757 */ 1758 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1759 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 1760 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1761 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1762 /* We need to update the localport also */ 1763 lpfc_nvme_update_localport(vport); 1764 } 1765 1766 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 1767 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1768 1769 } else if (ndlp->nlp_fc4_type == 0) { 1770 rc = lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 1771 0, ndlp->nlp_DID); 1772 return ndlp->nlp_state; 1773 } 1774 1775 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1776 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 1777 lpfc_issue_els_prli(vport, ndlp, 0); 1778 } else { 1779 if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support) 1780 phba->targetport->port_id = vport->fc_myDID; 1781 1782 /* Only Fabric ports should transition. NVME target 1783 * must complete PRLI. 1784 */ 1785 if (ndlp->nlp_type & NLP_FABRIC) { 1786 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1787 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1788 } 1789 } 1790 return ndlp->nlp_state; 1791 } 1792 1793 static uint32_t 1794 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 1795 struct lpfc_nodelist *ndlp, 1796 void *arg, 1797 uint32_t evt) 1798 { 1799 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1800 1801 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1802 spin_lock_irq(shost->host_lock); 1803 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1804 spin_unlock_irq(shost->host_lock); 1805 return ndlp->nlp_state; 1806 } else { 1807 lpfc_drop_node(vport, ndlp); 1808 return NLP_STE_FREED_NODE; 1809 } 1810 } 1811 1812 static uint32_t 1813 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 1814 struct lpfc_nodelist *ndlp, 1815 void *arg, 1816 uint32_t evt) 1817 { 1818 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1819 1820 /* Don't do anything that will mess up processing of the 1821 * previous RSCN. 1822 */ 1823 if (vport->fc_flag & FC_RSCN_DEFERRED) 1824 return ndlp->nlp_state; 1825 1826 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1827 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1828 spin_lock_irq(shost->host_lock); 1829 1830 /* If we are a target we won't immediately transition into PRLI, 1831 * so if REG_LOGIN already completed we don't need to ignore it. 1832 */ 1833 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) || 1834 !vport->phba->nvmet_support) 1835 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 1836 1837 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1838 spin_unlock_irq(shost->host_lock); 1839 lpfc_disc_set_adisc(vport, ndlp); 1840 return ndlp->nlp_state; 1841 } 1842 1843 static uint32_t 1844 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1845 void *arg, uint32_t evt) 1846 { 1847 struct lpfc_iocbq *cmdiocb; 1848 1849 cmdiocb = (struct lpfc_iocbq *) arg; 1850 1851 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1852 return ndlp->nlp_state; 1853 } 1854 1855 static uint32_t 1856 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1857 void *arg, uint32_t evt) 1858 { 1859 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1860 1861 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1862 return ndlp->nlp_state; 1863 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1864 return ndlp->nlp_state; 1865 } 1866 1867 static uint32_t 1868 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1869 void *arg, uint32_t evt) 1870 { 1871 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1872 1873 /* Software abort outstanding PRLI before sending acc */ 1874 lpfc_els_abort(vport->phba, ndlp); 1875 1876 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1877 return ndlp->nlp_state; 1878 } 1879 1880 static uint32_t 1881 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1882 void *arg, uint32_t evt) 1883 { 1884 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1885 1886 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1887 return ndlp->nlp_state; 1888 } 1889 1890 /* This routine is envoked when we rcv a PRLO request from a nport 1891 * we are logged into. We should send back a PRLO rsp setting the 1892 * appropriate bits. 1893 * NEXT STATE = PRLI_ISSUE 1894 */ 1895 static uint32_t 1896 lpfc_rcv_prlo_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 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1902 return ndlp->nlp_state; 1903 } 1904 1905 static uint32_t 1906 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1907 void *arg, uint32_t evt) 1908 { 1909 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1910 struct lpfc_iocbq *cmdiocb, *rspiocb; 1911 struct lpfc_hba *phba = vport->phba; 1912 IOCB_t *irsp; 1913 PRLI *npr; 1914 struct lpfc_nvme_prli *nvpr; 1915 void *temp_ptr; 1916 1917 cmdiocb = (struct lpfc_iocbq *) arg; 1918 rspiocb = cmdiocb->context_un.rsp_iocb; 1919 1920 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 1921 * format is different so NULL the two PRLI types so that the 1922 * driver correctly gets the correct context. 1923 */ 1924 npr = NULL; 1925 nvpr = NULL; 1926 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1927 if (cmdiocb->iocb_flag & LPFC_PRLI_FCP_REQ) 1928 npr = (PRLI *) temp_ptr; 1929 else if (cmdiocb->iocb_flag & LPFC_PRLI_NVME_REQ) 1930 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 1931 1932 irsp = &rspiocb->iocb; 1933 if (irsp->ulpStatus) { 1934 if ((vport->port_type == LPFC_NPIV_PORT) && 1935 vport->cfg_restrict_login) { 1936 goto out; 1937 } 1938 1939 /* Adjust the nlp_type accordingly if the PRLI failed */ 1940 if (npr) 1941 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 1942 if (nvpr) 1943 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 1944 1945 /* We can't set the DSM state till BOTH PRLIs complete */ 1946 goto out_err; 1947 } 1948 1949 if (npr && (npr->acceptRspCode == PRLI_REQ_EXECUTED) && 1950 (npr->prliType == PRLI_FCP_TYPE)) { 1951 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 1952 "6028 FCP NPR PRLI Cmpl Init %d Target %d\n", 1953 npr->initiatorFunc, 1954 npr->targetFunc); 1955 if (npr->initiatorFunc) 1956 ndlp->nlp_type |= NLP_FCP_INITIATOR; 1957 if (npr->targetFunc) { 1958 ndlp->nlp_type |= NLP_FCP_TARGET; 1959 if (npr->writeXferRdyDis) 1960 ndlp->nlp_flag |= NLP_FIRSTBURST; 1961 } 1962 if (npr->Retry) 1963 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 1964 1965 } else if (nvpr && 1966 (bf_get_be32(prli_acc_rsp_code, nvpr) == 1967 PRLI_REQ_EXECUTED) && 1968 (bf_get_be32(prli_type_code, nvpr) == 1969 PRLI_NVME_TYPE)) { 1970 1971 /* Complete setting up the remote ndlp personality. */ 1972 if (bf_get_be32(prli_init, nvpr)) 1973 ndlp->nlp_type |= NLP_NVME_INITIATOR; 1974 1975 /* Target driver cannot solicit NVME FB. */ 1976 if (bf_get_be32(prli_tgt, nvpr)) { 1977 /* Complete the nvme target roles. The transport 1978 * needs to know if the rport is capable of 1979 * discovery in addition to its role. 1980 */ 1981 ndlp->nlp_type |= NLP_NVME_TARGET; 1982 if (bf_get_be32(prli_disc, nvpr)) 1983 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 1984 1985 /* This node is an NVME target. Adjust the command 1986 * queue depth on this node to not exceed the available 1987 * xris. 1988 */ 1989 ndlp->cmd_qdepth = phba->sli4_hba.nvme_xri_max; 1990 1991 /* 1992 * If prli_fba is set, the Target supports FirstBurst. 1993 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 1994 * otherwise it defines the actual size supported by 1995 * the NVME Target. 1996 */ 1997 if ((bf_get_be32(prli_fba, nvpr) == 1) && 1998 (phba->cfg_nvme_enable_fb) && 1999 (!phba->nvmet_support)) { 2000 /* Both sides support FB. The target's first 2001 * burst size is a 512 byte encoded value. 2002 */ 2003 ndlp->nlp_flag |= NLP_FIRSTBURST; 2004 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2005 nvpr); 2006 2007 /* Expressed in units of 512 bytes */ 2008 if (ndlp->nvme_fb_size) 2009 ndlp->nvme_fb_size <<= 2010 LPFC_NVME_FB_SHIFT; 2011 else 2012 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2013 } 2014 } 2015 2016 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2017 "6029 NVME PRLI Cmpl w1 x%08x " 2018 "w4 x%08x w5 x%08x flag x%x, " 2019 "fcp_info x%x nlp_type x%x\n", 2020 be32_to_cpu(nvpr->word1), 2021 be32_to_cpu(nvpr->word4), 2022 be32_to_cpu(nvpr->word5), 2023 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2024 ndlp->nlp_type); 2025 } 2026 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2027 (vport->port_type == LPFC_NPIV_PORT) && 2028 vport->cfg_restrict_login) { 2029 out: 2030 spin_lock_irq(shost->host_lock); 2031 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 2032 spin_unlock_irq(shost->host_lock); 2033 lpfc_issue_els_logo(vport, ndlp, 0); 2034 2035 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2036 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2037 return ndlp->nlp_state; 2038 } 2039 2040 out_err: 2041 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2042 * are complete. 2043 */ 2044 if (ndlp->fc4_prli_sent == 0) { 2045 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2046 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2047 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2048 else if (ndlp->nlp_type & 2049 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2050 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2051 } else 2052 lpfc_printf_vlog(vport, 2053 KERN_INFO, LOG_ELS, 2054 "3067 PRLI's still outstanding " 2055 "on x%06x - count %d, Pend Node Mode " 2056 "transition...\n", 2057 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2058 2059 return ndlp->nlp_state; 2060 } 2061 2062 /*! lpfc_device_rm_prli_issue 2063 * 2064 * \pre 2065 * \post 2066 * \param phba 2067 * \param ndlp 2068 * \param arg 2069 * \param evt 2070 * \return uint32_t 2071 * 2072 * \b Description: 2073 * This routine is envoked when we a request to remove a nport we are in the 2074 * process of PRLIing. We should software abort outstanding prli, unreg 2075 * login, send a logout. We will change node state to UNUSED_NODE, put it 2076 * on plogi list so it can be freed when LOGO completes. 2077 * 2078 */ 2079 2080 static uint32_t 2081 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2082 void *arg, uint32_t evt) 2083 { 2084 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2085 2086 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2087 spin_lock_irq(shost->host_lock); 2088 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2089 spin_unlock_irq(shost->host_lock); 2090 return ndlp->nlp_state; 2091 } else { 2092 /* software abort outstanding PLOGI */ 2093 lpfc_els_abort(vport->phba, ndlp); 2094 2095 lpfc_drop_node(vport, ndlp); 2096 return NLP_STE_FREED_NODE; 2097 } 2098 } 2099 2100 2101 /*! lpfc_device_recov_prli_issue 2102 * 2103 * \pre 2104 * \post 2105 * \param phba 2106 * \param ndlp 2107 * \param arg 2108 * \param evt 2109 * \return uint32_t 2110 * 2111 * \b Description: 2112 * The routine is envoked when the state of a device is unknown, like 2113 * during a link down. We should remove the nodelist entry from the 2114 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2115 * outstanding PRLI command, then free the node entry. 2116 */ 2117 static uint32_t 2118 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2119 struct lpfc_nodelist *ndlp, 2120 void *arg, 2121 uint32_t evt) 2122 { 2123 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2124 struct lpfc_hba *phba = vport->phba; 2125 2126 /* Don't do anything that will mess up processing of the 2127 * previous RSCN. 2128 */ 2129 if (vport->fc_flag & FC_RSCN_DEFERRED) 2130 return ndlp->nlp_state; 2131 2132 /* software abort outstanding PRLI */ 2133 lpfc_els_abort(phba, ndlp); 2134 2135 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2136 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2137 spin_lock_irq(shost->host_lock); 2138 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2139 spin_unlock_irq(shost->host_lock); 2140 lpfc_disc_set_adisc(vport, ndlp); 2141 return ndlp->nlp_state; 2142 } 2143 2144 static uint32_t 2145 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2146 void *arg, uint32_t evt) 2147 { 2148 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2149 struct ls_rjt stat; 2150 2151 memset(&stat, 0, sizeof(struct ls_rjt)); 2152 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2153 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2154 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2155 return ndlp->nlp_state; 2156 } 2157 2158 static uint32_t 2159 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2160 void *arg, uint32_t evt) 2161 { 2162 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2163 struct ls_rjt stat; 2164 2165 memset(&stat, 0, sizeof(struct ls_rjt)); 2166 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2167 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2168 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2169 return ndlp->nlp_state; 2170 } 2171 2172 static uint32_t 2173 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2174 void *arg, uint32_t evt) 2175 { 2176 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2177 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2178 2179 spin_lock_irq(shost->host_lock); 2180 ndlp->nlp_flag |= NLP_LOGO_ACC; 2181 spin_unlock_irq(shost->host_lock); 2182 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2183 return ndlp->nlp_state; 2184 } 2185 2186 static uint32_t 2187 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2188 void *arg, uint32_t evt) 2189 { 2190 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2191 struct ls_rjt stat; 2192 2193 memset(&stat, 0, sizeof(struct ls_rjt)); 2194 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2195 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2196 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2197 return ndlp->nlp_state; 2198 } 2199 2200 static uint32_t 2201 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2202 void *arg, uint32_t evt) 2203 { 2204 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2205 struct ls_rjt stat; 2206 2207 memset(&stat, 0, sizeof(struct ls_rjt)); 2208 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2209 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2210 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2211 return ndlp->nlp_state; 2212 } 2213 2214 static uint32_t 2215 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2216 void *arg, uint32_t evt) 2217 { 2218 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2219 2220 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2221 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2222 spin_lock_irq(shost->host_lock); 2223 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2224 spin_unlock_irq(shost->host_lock); 2225 lpfc_disc_set_adisc(vport, ndlp); 2226 return ndlp->nlp_state; 2227 } 2228 2229 static uint32_t 2230 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2231 void *arg, uint32_t evt) 2232 { 2233 /* 2234 * DevLoss has timed out and is calling for Device Remove. 2235 * In this case, abort the LOGO and cleanup the ndlp 2236 */ 2237 2238 lpfc_unreg_rpi(vport, ndlp); 2239 /* software abort outstanding PLOGI */ 2240 lpfc_els_abort(vport->phba, ndlp); 2241 lpfc_drop_node(vport, ndlp); 2242 return NLP_STE_FREED_NODE; 2243 } 2244 2245 static uint32_t 2246 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2247 struct lpfc_nodelist *ndlp, 2248 void *arg, uint32_t evt) 2249 { 2250 /* 2251 * Device Recovery events have no meaning for a node with a LOGO 2252 * outstanding. The LOGO has to complete first and handle the 2253 * node from that point. 2254 */ 2255 return ndlp->nlp_state; 2256 } 2257 2258 static uint32_t 2259 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2260 void *arg, uint32_t evt) 2261 { 2262 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2263 2264 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2265 return ndlp->nlp_state; 2266 } 2267 2268 static uint32_t 2269 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2270 void *arg, uint32_t evt) 2271 { 2272 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2273 2274 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2275 return ndlp->nlp_state; 2276 2277 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2278 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2279 return ndlp->nlp_state; 2280 } 2281 2282 static uint32_t 2283 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2284 void *arg, uint32_t evt) 2285 { 2286 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2287 2288 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2289 return ndlp->nlp_state; 2290 } 2291 2292 static uint32_t 2293 lpfc_rcv_padisc_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_padisc(vport, ndlp, cmdiocb); 2299 return ndlp->nlp_state; 2300 } 2301 2302 static uint32_t 2303 lpfc_rcv_prlo_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 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2309 return ndlp->nlp_state; 2310 } 2311 2312 static uint32_t 2313 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2314 struct lpfc_nodelist *ndlp, 2315 void *arg, 2316 uint32_t evt) 2317 { 2318 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2319 2320 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2321 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2322 spin_lock_irq(shost->host_lock); 2323 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2324 spin_unlock_irq(shost->host_lock); 2325 lpfc_disc_set_adisc(vport, ndlp); 2326 2327 return ndlp->nlp_state; 2328 } 2329 2330 static uint32_t 2331 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2332 void *arg, uint32_t evt) 2333 { 2334 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2335 2336 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2337 return ndlp->nlp_state; 2338 } 2339 2340 static uint32_t 2341 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2342 void *arg, uint32_t evt) 2343 { 2344 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2345 2346 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2347 return ndlp->nlp_state; 2348 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2349 return ndlp->nlp_state; 2350 } 2351 2352 static uint32_t 2353 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2354 void *arg, uint32_t evt) 2355 { 2356 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2357 2358 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2359 return ndlp->nlp_state; 2360 } 2361 2362 static uint32_t 2363 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2364 struct lpfc_nodelist *ndlp, 2365 void *arg, uint32_t evt) 2366 { 2367 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2368 2369 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2370 return ndlp->nlp_state; 2371 } 2372 2373 static uint32_t 2374 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2375 void *arg, uint32_t evt) 2376 { 2377 struct lpfc_hba *phba = vport->phba; 2378 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2379 2380 /* flush the target */ 2381 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], 2382 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2383 2384 /* Treat like rcv logo */ 2385 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2386 return ndlp->nlp_state; 2387 } 2388 2389 static uint32_t 2390 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2391 struct lpfc_nodelist *ndlp, 2392 void *arg, 2393 uint32_t evt) 2394 { 2395 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2396 2397 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2398 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2399 spin_lock_irq(shost->host_lock); 2400 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2401 spin_unlock_irq(shost->host_lock); 2402 lpfc_disc_set_adisc(vport, ndlp); 2403 return ndlp->nlp_state; 2404 } 2405 2406 static uint32_t 2407 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2408 void *arg, uint32_t evt) 2409 { 2410 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2411 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2412 2413 /* Ignore PLOGI if we have an outstanding LOGO */ 2414 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2415 return ndlp->nlp_state; 2416 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2417 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2418 spin_lock_irq(shost->host_lock); 2419 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2420 spin_unlock_irq(shost->host_lock); 2421 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2422 /* send PLOGI immediately, move to PLOGI issue state */ 2423 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2424 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2425 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2426 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2427 } 2428 } 2429 return ndlp->nlp_state; 2430 } 2431 2432 static uint32_t 2433 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2434 void *arg, uint32_t evt) 2435 { 2436 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2437 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2438 struct ls_rjt stat; 2439 2440 memset(&stat, 0, sizeof (struct ls_rjt)); 2441 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2442 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2443 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2444 2445 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2446 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2447 spin_lock_irq(shost->host_lock); 2448 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2449 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2450 spin_unlock_irq(shost->host_lock); 2451 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2452 lpfc_issue_els_adisc(vport, ndlp, 0); 2453 } else { 2454 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2455 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2456 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2457 } 2458 } 2459 return ndlp->nlp_state; 2460 } 2461 2462 static uint32_t 2463 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2464 void *arg, uint32_t evt) 2465 { 2466 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2467 2468 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2469 return ndlp->nlp_state; 2470 } 2471 2472 static uint32_t 2473 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2474 void *arg, uint32_t evt) 2475 { 2476 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2477 2478 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2479 /* 2480 * Do not start discovery if discovery is about to start 2481 * or discovery in progress for this node. Starting discovery 2482 * here will affect the counting of discovery threads. 2483 */ 2484 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2485 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2486 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2487 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2488 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2489 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2490 lpfc_issue_els_adisc(vport, ndlp, 0); 2491 } else { 2492 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2493 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2494 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2495 } 2496 } 2497 return ndlp->nlp_state; 2498 } 2499 2500 static uint32_t 2501 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2502 void *arg, uint32_t evt) 2503 { 2504 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2505 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2506 2507 spin_lock_irq(shost->host_lock); 2508 ndlp->nlp_flag |= NLP_LOGO_ACC; 2509 spin_unlock_irq(shost->host_lock); 2510 2511 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2512 2513 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2514 mod_timer(&ndlp->nlp_delayfunc, 2515 jiffies + msecs_to_jiffies(1000 * 1)); 2516 spin_lock_irq(shost->host_lock); 2517 ndlp->nlp_flag |= NLP_DELAY_TMO; 2518 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2519 spin_unlock_irq(shost->host_lock); 2520 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2521 } else { 2522 spin_lock_irq(shost->host_lock); 2523 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2524 spin_unlock_irq(shost->host_lock); 2525 } 2526 return ndlp->nlp_state; 2527 } 2528 2529 static uint32_t 2530 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2531 void *arg, uint32_t evt) 2532 { 2533 struct lpfc_iocbq *cmdiocb, *rspiocb; 2534 IOCB_t *irsp; 2535 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2536 2537 cmdiocb = (struct lpfc_iocbq *) arg; 2538 rspiocb = cmdiocb->context_un.rsp_iocb; 2539 2540 irsp = &rspiocb->iocb; 2541 if (irsp->ulpStatus) { 2542 spin_lock_irq(shost->host_lock); 2543 ndlp->nlp_flag |= NLP_DEFER_RM; 2544 spin_unlock_irq(shost->host_lock); 2545 return NLP_STE_FREED_NODE; 2546 } 2547 return ndlp->nlp_state; 2548 } 2549 2550 static uint32_t 2551 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2552 void *arg, uint32_t evt) 2553 { 2554 struct lpfc_iocbq *cmdiocb, *rspiocb; 2555 IOCB_t *irsp; 2556 2557 cmdiocb = (struct lpfc_iocbq *) arg; 2558 rspiocb = cmdiocb->context_un.rsp_iocb; 2559 2560 irsp = &rspiocb->iocb; 2561 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2562 lpfc_drop_node(vport, ndlp); 2563 return NLP_STE_FREED_NODE; 2564 } 2565 return ndlp->nlp_state; 2566 } 2567 2568 static uint32_t 2569 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2570 void *arg, uint32_t evt) 2571 { 2572 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2573 2574 /* For the fabric port just clear the fc flags. */ 2575 if (ndlp->nlp_DID == Fabric_DID) { 2576 spin_lock_irq(shost->host_lock); 2577 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2578 spin_unlock_irq(shost->host_lock); 2579 } 2580 lpfc_unreg_rpi(vport, ndlp); 2581 return ndlp->nlp_state; 2582 } 2583 2584 static uint32_t 2585 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2586 void *arg, uint32_t evt) 2587 { 2588 struct lpfc_iocbq *cmdiocb, *rspiocb; 2589 IOCB_t *irsp; 2590 2591 cmdiocb = (struct lpfc_iocbq *) arg; 2592 rspiocb = cmdiocb->context_un.rsp_iocb; 2593 2594 irsp = &rspiocb->iocb; 2595 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2596 lpfc_drop_node(vport, ndlp); 2597 return NLP_STE_FREED_NODE; 2598 } 2599 return ndlp->nlp_state; 2600 } 2601 2602 static uint32_t 2603 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2604 struct lpfc_nodelist *ndlp, 2605 void *arg, uint32_t evt) 2606 { 2607 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2608 MAILBOX_t *mb = &pmb->u.mb; 2609 2610 if (!mb->mbxStatus) { 2611 /* SLI4 ports have preallocated logical rpis. */ 2612 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2613 ndlp->nlp_rpi = mb->un.varWords[0]; 2614 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2615 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 2616 lpfc_unreg_rpi(vport, ndlp); 2617 } 2618 } else { 2619 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2620 lpfc_drop_node(vport, ndlp); 2621 return NLP_STE_FREED_NODE; 2622 } 2623 } 2624 return ndlp->nlp_state; 2625 } 2626 2627 static uint32_t 2628 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2629 void *arg, uint32_t evt) 2630 { 2631 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2632 2633 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2634 spin_lock_irq(shost->host_lock); 2635 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2636 spin_unlock_irq(shost->host_lock); 2637 return ndlp->nlp_state; 2638 } 2639 lpfc_drop_node(vport, ndlp); 2640 return NLP_STE_FREED_NODE; 2641 } 2642 2643 static uint32_t 2644 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2645 void *arg, uint32_t evt) 2646 { 2647 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2648 2649 /* Don't do anything that will mess up processing of the 2650 * previous RSCN. 2651 */ 2652 if (vport->fc_flag & FC_RSCN_DEFERRED) 2653 return ndlp->nlp_state; 2654 2655 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2656 spin_lock_irq(shost->host_lock); 2657 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2658 spin_unlock_irq(shost->host_lock); 2659 return ndlp->nlp_state; 2660 } 2661 2662 2663 /* This next section defines the NPort Discovery State Machine */ 2664 2665 /* There are 4 different double linked lists nodelist entries can reside on. 2666 * The plogi list and adisc list are used when Link Up discovery or RSCN 2667 * processing is needed. Each list holds the nodes that we will send PLOGI 2668 * or ADISC on. These lists will keep track of what nodes will be effected 2669 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2670 * The unmapped_list will contain all nodes that we have successfully logged 2671 * into at the Fibre Channel level. The mapped_list will contain all nodes 2672 * that are mapped FCP targets. 2673 */ 2674 /* 2675 * The bind list is a list of undiscovered (potentially non-existent) nodes 2676 * that we have saved binding information on. This information is used when 2677 * nodes transition from the unmapped to the mapped list. 2678 */ 2679 /* For UNUSED_NODE state, the node has just been allocated . 2680 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2681 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2682 * and put on the unmapped list. For ADISC processing, the node is taken off 2683 * the ADISC list and placed on either the mapped or unmapped list (depending 2684 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2685 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2686 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2687 * node, the node is taken off the unmapped list. The binding list is checked 2688 * for a valid binding, or a binding is automatically assigned. If binding 2689 * assignment is unsuccessful, the node is left on the unmapped list. If 2690 * binding assignment is successful, the associated binding list entry (if 2691 * any) is removed, and the node is placed on the mapped list. 2692 */ 2693 /* 2694 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2695 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2696 * expire, all effected nodes will receive a DEVICE_RM event. 2697 */ 2698 /* 2699 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2700 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2701 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2702 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2703 * we will first process the ADISC list. 32 entries are processed initially and 2704 * ADISC is initited for each one. Completions / Events for each node are 2705 * funnelled thru the state machine. As each node finishes ADISC processing, it 2706 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2707 * waiting, and the ADISC list count is identically 0, then we are done. For 2708 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2709 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2710 * list. 32 entries are processed initially and PLOGI is initited for each one. 2711 * Completions / Events for each node are funnelled thru the state machine. As 2712 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2713 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2714 * indentically 0, then we are done. We have now completed discovery / RSCN 2715 * handling. Upon completion, ALL nodes should be on either the mapped or 2716 * unmapped lists. 2717 */ 2718 2719 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2720 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2721 /* Action routine Event Current State */ 2722 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2723 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2724 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2725 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2726 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2727 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2728 lpfc_disc_illegal, /* CMPL_PLOGI */ 2729 lpfc_disc_illegal, /* CMPL_PRLI */ 2730 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2731 lpfc_disc_illegal, /* CMPL_ADISC */ 2732 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2733 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2734 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2735 2736 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2737 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2738 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2739 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2740 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2741 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2742 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2743 lpfc_disc_illegal, /* CMPL_PRLI */ 2744 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2745 lpfc_disc_illegal, /* CMPL_ADISC */ 2746 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2747 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2748 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2749 2750 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2751 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 2752 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 2753 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 2754 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 2755 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 2756 lpfc_disc_illegal, /* CMPL_PLOGI */ 2757 lpfc_disc_illegal, /* CMPL_PRLI */ 2758 lpfc_disc_illegal, /* CMPL_LOGO */ 2759 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 2760 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2761 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 2762 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 2763 2764 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 2765 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 2766 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 2767 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 2768 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 2769 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 2770 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2771 lpfc_disc_illegal, /* CMPL_PRLI */ 2772 lpfc_disc_illegal, /* CMPL_LOGO */ 2773 lpfc_disc_illegal, /* CMPL_ADISC */ 2774 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 2775 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 2776 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 2777 2778 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 2779 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 2780 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 2781 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 2782 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 2783 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 2784 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2785 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 2786 lpfc_disc_illegal, /* CMPL_LOGO */ 2787 lpfc_disc_illegal, /* CMPL_ADISC */ 2788 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2789 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 2790 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 2791 2792 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 2793 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 2794 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 2795 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 2796 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 2797 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 2798 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2799 lpfc_disc_illegal, /* CMPL_PRLI */ 2800 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 2801 lpfc_disc_illegal, /* CMPL_ADISC */ 2802 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2803 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 2804 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 2805 2806 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 2807 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 2808 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 2809 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 2810 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 2811 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 2812 lpfc_disc_illegal, /* CMPL_PLOGI */ 2813 lpfc_disc_illegal, /* CMPL_PRLI */ 2814 lpfc_disc_illegal, /* CMPL_LOGO */ 2815 lpfc_disc_illegal, /* CMPL_ADISC */ 2816 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2817 lpfc_disc_illegal, /* DEVICE_RM */ 2818 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 2819 2820 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 2821 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 2822 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 2823 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 2824 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 2825 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 2826 lpfc_disc_illegal, /* CMPL_PLOGI */ 2827 lpfc_disc_illegal, /* CMPL_PRLI */ 2828 lpfc_disc_illegal, /* CMPL_LOGO */ 2829 lpfc_disc_illegal, /* CMPL_ADISC */ 2830 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2831 lpfc_disc_illegal, /* DEVICE_RM */ 2832 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 2833 2834 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 2835 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 2836 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 2837 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 2838 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 2839 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 2840 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 2841 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 2842 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 2843 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 2844 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 2845 lpfc_device_rm_npr_node, /* DEVICE_RM */ 2846 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 2847 }; 2848 2849 int 2850 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2851 void *arg, uint32_t evt) 2852 { 2853 uint32_t cur_state, rc; 2854 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 2855 uint32_t); 2856 uint32_t got_ndlp = 0; 2857 2858 if (lpfc_nlp_get(ndlp)) 2859 got_ndlp = 1; 2860 2861 cur_state = ndlp->nlp_state; 2862 2863 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 2864 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2865 "0211 DSM in event x%x on NPort x%x in " 2866 "state %d Data: x%x\n", 2867 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag); 2868 2869 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2870 "DSM in: evt:%d ste:%d did:x%x", 2871 evt, cur_state, ndlp->nlp_DID); 2872 2873 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 2874 rc = (func) (vport, ndlp, arg, evt); 2875 2876 /* DSM out state <rc> on NPort <nlp_DID> */ 2877 if (got_ndlp) { 2878 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2879 "0212 DSM out state %d on NPort x%x Data: x%x\n", 2880 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2881 2882 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2883 "DSM out: ste:%d did:x%x flg:x%x", 2884 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2885 /* Decrement the ndlp reference count held for this function */ 2886 lpfc_nlp_put(ndlp); 2887 } else { 2888 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2889 "0213 DSM out state %d on NPort free\n", rc); 2890 2891 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2892 "DSM out: ste:%d did:x%x flg:x%x", 2893 rc, 0, 0); 2894 } 2895 2896 return rc; 2897 } 2898