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lpfc_els.c
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linux-6.19.14/drivers/scsi/lpfc/lpfc_els.c
1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2025 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23/* See Fibre Channel protocol T11 FC-LS for details */ 24#include <linux/blkdev.h> 25#include <linux/pci.h> 26#include <linux/slab.h> 27#include <linux/interrupt.h> 28#include <linux/delay.h> 29 30#include <scsi/scsi.h> 31#include <scsi/scsi_device.h> 32#include <scsi/scsi_host.h> 33#include <scsi/scsi_transport_fc.h> 34#include <uapi/scsi/fc/fc_fs.h> 35#include <uapi/scsi/fc/fc_els.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_scsi.h" 44#include "lpfc.h" 45#include "lpfc_logmsg.h" 46#include "lpfc_crtn.h" 47#include "lpfc_vport.h" 48#include "lpfc_debugfs.h" 49 50static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *, 51 struct lpfc_iocbq *); 52static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *, 53 struct lpfc_iocbq *); 54static void lpfc_fabric_abort_vport(struct lpfc_vport *vport); 55static int lpfc_issue_els_fdisc(struct lpfc_vport *vport, 56 struct lpfc_nodelist *ndlp, uint8_t retry); 57static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba, 58 struct lpfc_iocbq *iocb); 59static void lpfc_cmpl_els_edc(struct lpfc_hba *phba, 60 struct lpfc_iocbq *cmdiocb, 61 struct lpfc_iocbq *rspiocb); 62static void lpfc_cmpl_els_uvem(struct lpfc_hba *, struct lpfc_iocbq *, 63 struct lpfc_iocbq *); 64 65static int lpfc_max_els_tries = 3; 66 67static void lpfc_init_cs_ctl_bitmap(struct lpfc_vport *vport); 68static void lpfc_vmid_set_cs_ctl_range(struct lpfc_vport *vport, u32 min, u32 max); 69static void lpfc_vmid_put_cs_ctl(struct lpfc_vport *vport, u32 ctcl_vmid); 70 71/** 72 * lpfc_els_chk_latt - Check host link attention event for a vport 73 * @vport: pointer to a host virtual N_Port data structure. 74 * 75 * This routine checks whether there is an outstanding host link 76 * attention event during the discovery process with the @vport. It is done 77 * by reading the HBA's Host Attention (HA) register. If there is any host 78 * link attention events during this @vport's discovery process, the @vport 79 * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall 80 * be issued if the link state is not already in host link cleared state, 81 * and a return code shall indicate whether the host link attention event 82 * had happened. 83 * 84 * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport 85 * state in LPFC_VPORT_READY, the request for checking host link attention 86 * event will be ignored and a return code shall indicate no host link 87 * attention event had happened. 88 * 89 * Return codes 90 * 0 - no host link attention event happened 91 * 1 - host link attention event happened 92 **/ 93int 94lpfc_els_chk_latt(struct lpfc_vport *vport) 95{ 96 struct lpfc_hba *phba = vport->phba; 97 uint32_t ha_copy; 98 99 if (vport->port_state >= LPFC_VPORT_READY || 100 phba->link_state == LPFC_LINK_DOWN || 101 phba->sli_rev > LPFC_SLI_REV3) 102 return 0; 103 104 /* Read the HBA Host Attention Register */ 105 if (lpfc_readl(phba->HAregaddr, &ha_copy)) 106 return 1; 107 108 if (!(ha_copy & HA_LATT)) 109 return 0; 110 111 /* Pending Link Event during Discovery */ 112 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 113 "0237 Pending Link Event during " 114 "Discovery: State x%x\n", 115 phba->pport->port_state); 116 117 /* CLEAR_LA should re-enable link attention events and 118 * we should then immediately take a LATT event. The 119 * LATT processing should call lpfc_linkdown() which 120 * will cleanup any left over in-progress discovery 121 * events. 122 */ 123 set_bit(FC_ABORT_DISCOVERY, &vport->fc_flag); 124 125 if (phba->link_state != LPFC_CLEAR_LA) 126 lpfc_issue_clear_la(phba, vport); 127 128 return 1; 129} 130 131static bool lpfc_is_els_acc_rsp(struct lpfc_dmabuf *buf) 132{ 133 struct fc_els_ls_acc *rsp = buf->virt; 134 135 if (rsp && rsp->la_cmd == ELS_LS_ACC) 136 return true; 137 return false; 138} 139 140/** 141 * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure 142 * @vport: pointer to a host virtual N_Port data structure. 143 * @expect_rsp: flag indicating whether response is expected. 144 * @cmd_size: size of the ELS command. 145 * @retry: number of retries to the command when it fails. 146 * @ndlp: pointer to a node-list data structure. 147 * @did: destination identifier. 148 * @elscmd: the ELS command code. 149 * 150 * This routine is used for allocating a lpfc-IOCB data structure from 151 * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters 152 * passed into the routine for discovery state machine to issue an Extended 153 * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation 154 * and preparation routine that is used by all the discovery state machine 155 * routines and the ELS command-specific fields will be later set up by 156 * the individual discovery machine routines after calling this routine 157 * allocating and preparing a generic IOCB data structure. It fills in the 158 * Buffer Descriptor Entries (BDEs), allocates buffers for both command 159 * payload and response payload (if expected). The reference count on the 160 * ndlp is incremented by 1 and the reference to the ndlp is put into 161 * ndlp of the IOCB data structure for this IOCB to hold the ndlp 162 * reference for the command's callback function to access later. 163 * 164 * Return code 165 * Pointer to the newly allocated/prepared els iocb data structure 166 * NULL - when els iocb data structure allocation/preparation failed 167 **/ 168struct lpfc_iocbq * 169lpfc_prep_els_iocb(struct lpfc_vport *vport, u8 expect_rsp, 170 u16 cmd_size, u8 retry, 171 struct lpfc_nodelist *ndlp, u32 did, 172 u32 elscmd) 173{ 174 struct lpfc_hba *phba = vport->phba; 175 struct lpfc_iocbq *elsiocb; 176 struct lpfc_dmabuf *pcmd, *prsp, *pbuflist, *bmp; 177 struct ulp_bde64_le *bpl; 178 u32 timeout = 0; 179 180 if (!lpfc_is_link_up(phba)) 181 return NULL; 182 183 /* Allocate buffer for command iocb */ 184 elsiocb = lpfc_sli_get_iocbq(phba); 185 if (!elsiocb) 186 return NULL; 187 188 /* 189 * If this command is for fabric controller and HBA running 190 * in FIP mode send FLOGI, FDISC and LOGO as FIP frames. 191 */ 192 if (did == Fabric_DID && 193 test_bit(HBA_FIP_SUPPORT, &phba->hba_flag) && 194 (elscmd == ELS_CMD_FLOGI || 195 elscmd == ELS_CMD_FDISC || 196 elscmd == ELS_CMD_LOGO)) 197 switch (elscmd) { 198 case ELS_CMD_FLOGI: 199 elsiocb->cmd_flag |= 200 ((LPFC_ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT) 201 & LPFC_FIP_ELS_ID_MASK); 202 break; 203 case ELS_CMD_FDISC: 204 elsiocb->cmd_flag |= 205 ((LPFC_ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT) 206 & LPFC_FIP_ELS_ID_MASK); 207 break; 208 case ELS_CMD_LOGO: 209 elsiocb->cmd_flag |= 210 ((LPFC_ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT) 211 & LPFC_FIP_ELS_ID_MASK); 212 break; 213 } 214 else 215 elsiocb->cmd_flag &= ~LPFC_FIP_ELS_ID_MASK; 216 217 /* fill in BDEs for command */ 218 /* Allocate buffer for command payload */ 219 pcmd = kmalloc(sizeof(*pcmd), GFP_KERNEL); 220 if (pcmd) 221 pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys); 222 if (!pcmd || !pcmd->virt) 223 goto els_iocb_free_pcmb_exit; 224 225 INIT_LIST_HEAD(&pcmd->list); 226 227 /* Allocate buffer for response payload */ 228 if (expect_rsp) { 229 prsp = kmalloc(sizeof(*prsp), GFP_KERNEL); 230 if (prsp) 231 prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 232 &prsp->phys); 233 if (!prsp || !prsp->virt) 234 goto els_iocb_free_prsp_exit; 235 INIT_LIST_HEAD(&prsp->list); 236 } else { 237 prsp = NULL; 238 } 239 240 /* Allocate buffer for Buffer ptr list */ 241 pbuflist = kmalloc(sizeof(*pbuflist), GFP_KERNEL); 242 if (pbuflist) 243 pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 244 &pbuflist->phys); 245 if (!pbuflist || !pbuflist->virt) 246 goto els_iocb_free_pbuf_exit; 247 248 INIT_LIST_HEAD(&pbuflist->list); 249 250 if (expect_rsp) { 251 switch (elscmd) { 252 case ELS_CMD_FLOGI: 253 timeout = FF_DEF_RATOV * 2; 254 break; 255 case ELS_CMD_LOGO: 256 timeout = phba->fc_ratov; 257 break; 258 default: 259 timeout = phba->fc_ratov * 2; 260 } 261 262 /* Fill SGE for the num bde count */ 263 elsiocb->num_bdes = 2; 264 } 265 266 if (phba->sli_rev == LPFC_SLI_REV4) 267 bmp = pcmd; 268 else 269 bmp = pbuflist; 270 271 lpfc_sli_prep_els_req_rsp(phba, elsiocb, vport, bmp, cmd_size, did, 272 elscmd, timeout, expect_rsp); 273 274 bpl = (struct ulp_bde64_le *)pbuflist->virt; 275 bpl->addr_low = cpu_to_le32(putPaddrLow(pcmd->phys)); 276 bpl->addr_high = cpu_to_le32(putPaddrHigh(pcmd->phys)); 277 bpl->type_size = cpu_to_le32(cmd_size); 278 bpl->type_size |= cpu_to_le32(ULP_BDE64_TYPE_BDE_64); 279 280 if (expect_rsp) { 281 bpl++; 282 bpl->addr_low = cpu_to_le32(putPaddrLow(prsp->phys)); 283 bpl->addr_high = cpu_to_le32(putPaddrHigh(prsp->phys)); 284 bpl->type_size = cpu_to_le32(FCELSSIZE); 285 bpl->type_size |= cpu_to_le32(ULP_BDE64_TYPE_BDE_64); 286 } 287 288 elsiocb->cmd_dmabuf = pcmd; 289 elsiocb->bpl_dmabuf = pbuflist; 290 elsiocb->retry = retry; 291 elsiocb->vport = vport; 292 elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT; 293 294 if (prsp) 295 list_add(&prsp->list, &pcmd->list); 296 if (expect_rsp) { 297 /* Xmit ELS command <elsCmd> to remote NPORT <did> */ 298 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 299 "0116 Xmit ELS command x%x to remote " 300 "NPORT x%x I/O tag: x%x, port state:x%x " 301 "rpi x%x fc_flag:x%lx\n", 302 elscmd, did, elsiocb->iotag, 303 vport->port_state, ndlp->nlp_rpi, 304 vport->fc_flag); 305 } else { 306 /* Xmit ELS response <elsCmd> to remote NPORT <did> */ 307 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 308 "0117 Xmit ELS response x%x to remote " 309 "NPORT x%x I/O tag: x%x, size: x%x " 310 "port_state x%x rpi x%x fc_flag x%lx\n", 311 elscmd, ndlp->nlp_DID, elsiocb->iotag, 312 cmd_size, vport->port_state, 313 ndlp->nlp_rpi, vport->fc_flag); 314 } 315 316 return elsiocb; 317 318els_iocb_free_pbuf_exit: 319 if (expect_rsp) 320 lpfc_mbuf_free(phba, prsp->virt, prsp->phys); 321 kfree(pbuflist); 322 323els_iocb_free_prsp_exit: 324 lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); 325 kfree(prsp); 326 327els_iocb_free_pcmb_exit: 328 kfree(pcmd); 329 lpfc_sli_release_iocbq(phba, elsiocb); 330 return NULL; 331} 332 333/** 334 * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport 335 * @vport: pointer to a host virtual N_Port data structure. 336 * 337 * This routine issues a fabric registration login for a @vport. An 338 * active ndlp node with Fabric_DID must already exist for this @vport. 339 * The routine invokes two mailbox commands to carry out fabric registration 340 * login through the HBA firmware: the first mailbox command requests the 341 * HBA to perform link configuration for the @vport; and the second mailbox 342 * command requests the HBA to perform the actual fabric registration login 343 * with the @vport. 344 * 345 * Return code 346 * 0 - successfully issued fabric registration login for @vport 347 * -ENXIO -- failed to issue fabric registration login for @vport 348 **/ 349int 350lpfc_issue_fabric_reglogin(struct lpfc_vport *vport) 351{ 352 struct lpfc_hba *phba = vport->phba; 353 LPFC_MBOXQ_t *mbox; 354 struct lpfc_nodelist *ndlp; 355 struct serv_parm *sp; 356 int rc; 357 int err = 0; 358 359 sp = &phba->fc_fabparam; 360 ndlp = lpfc_findnode_did(vport, Fabric_DID); 361 if (!ndlp) { 362 err = 1; 363 goto fail; 364 } 365 366 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 367 if (!mbox) { 368 err = 2; 369 goto fail; 370 } 371 372 vport->port_state = LPFC_FABRIC_CFG_LINK; 373 lpfc_config_link(phba, mbox); 374 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 375 mbox->vport = vport; 376 377 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 378 if (rc == MBX_NOT_FINISHED) { 379 err = 3; 380 goto fail_free_mbox; 381 } 382 383 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 384 if (!mbox) { 385 err = 4; 386 goto fail; 387 } 388 rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox, 389 ndlp->nlp_rpi); 390 if (rc) { 391 err = 5; 392 goto fail_free_mbox; 393 } 394 395 mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login; 396 mbox->vport = vport; 397 /* increment the reference count on ndlp to hold reference 398 * for the callback routine. 399 */ 400 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 401 if (!mbox->ctx_ndlp) { 402 err = 6; 403 goto fail_free_mbox; 404 } 405 406 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 407 if (rc == MBX_NOT_FINISHED) { 408 err = 7; 409 goto fail_issue_reg_login; 410 } 411 412 return 0; 413 414fail_issue_reg_login: 415 /* decrement the reference count on ndlp just incremented 416 * for the failed mbox command. 417 */ 418 lpfc_nlp_put(ndlp); 419fail_free_mbox: 420 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 421fail: 422 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 423 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 424 "0249 Cannot issue Register Fabric login: Err %d\n", 425 err); 426 return -ENXIO; 427} 428 429/** 430 * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login 431 * @vport: pointer to a host virtual N_Port data structure. 432 * 433 * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for 434 * the @vport. This mailbox command is necessary for SLI4 port only. 435 * 436 * Return code 437 * 0 - successfully issued REG_VFI for @vport 438 * A failure code otherwise. 439 **/ 440int 441lpfc_issue_reg_vfi(struct lpfc_vport *vport) 442{ 443 struct lpfc_hba *phba = vport->phba; 444 LPFC_MBOXQ_t *mboxq = NULL; 445 struct lpfc_nodelist *ndlp; 446 struct lpfc_dmabuf *dmabuf = NULL; 447 int rc = 0; 448 449 /* move forward in case of SLI4 FC port loopback test and pt2pt mode */ 450 if ((phba->sli_rev == LPFC_SLI_REV4) && 451 !(phba->link_flag & LS_LOOPBACK_MODE) && 452 !test_bit(FC_PT2PT, &vport->fc_flag)) { 453 ndlp = lpfc_findnode_did(vport, Fabric_DID); 454 if (!ndlp) { 455 rc = -ENODEV; 456 goto fail; 457 } 458 } 459 460 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 461 if (!mboxq) { 462 rc = -ENOMEM; 463 goto fail; 464 } 465 466 /* Supply CSP's only if we are fabric connect or pt-to-pt connect */ 467 if (test_bit(FC_FABRIC, &vport->fc_flag) || 468 test_bit(FC_PT2PT, &vport->fc_flag)) { 469 rc = lpfc_mbox_rsrc_prep(phba, mboxq); 470 if (rc) { 471 rc = -ENOMEM; 472 goto fail_mbox; 473 } 474 dmabuf = mboxq->ctx_buf; 475 memcpy(dmabuf->virt, &phba->fc_fabparam, 476 sizeof(struct serv_parm)); 477 } 478 479 vport->port_state = LPFC_FABRIC_CFG_LINK; 480 if (dmabuf) { 481 lpfc_reg_vfi(mboxq, vport, dmabuf->phys); 482 /* lpfc_reg_vfi memsets the mailbox. Restore the ctx_buf. */ 483 mboxq->ctx_buf = dmabuf; 484 } else { 485 lpfc_reg_vfi(mboxq, vport, 0); 486 } 487 488 mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi; 489 mboxq->vport = vport; 490 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 491 if (rc == MBX_NOT_FINISHED) { 492 rc = -ENXIO; 493 goto fail_mbox; 494 } 495 return 0; 496 497fail_mbox: 498 lpfc_mbox_rsrc_cleanup(phba, mboxq, MBOX_THD_UNLOCKED); 499fail: 500 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 501 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 502 "0289 Issue Register VFI failed: Err %d\n", rc); 503 return rc; 504} 505 506/** 507 * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login 508 * @vport: pointer to a host virtual N_Port data structure. 509 * 510 * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for 511 * the @vport. This mailbox command is necessary for SLI4 port only. 512 * 513 * Return code 514 * 0 - successfully issued REG_VFI for @vport 515 * A failure code otherwise. 516 **/ 517int 518lpfc_issue_unreg_vfi(struct lpfc_vport *vport) 519{ 520 struct lpfc_hba *phba = vport->phba; 521 LPFC_MBOXQ_t *mboxq; 522 int rc; 523 524 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 525 if (!mboxq) { 526 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 527 "2556 UNREG_VFI mbox allocation failed" 528 "HBA state x%x\n", phba->pport->port_state); 529 return -ENOMEM; 530 } 531 532 lpfc_unreg_vfi(mboxq, vport); 533 mboxq->vport = vport; 534 mboxq->mbox_cmpl = lpfc_unregister_vfi_cmpl; 535 536 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 537 if (rc == MBX_NOT_FINISHED) { 538 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 539 "2557 UNREG_VFI issue mbox failed rc x%x " 540 "HBA state x%x\n", 541 rc, phba->pport->port_state); 542 mempool_free(mboxq, phba->mbox_mem_pool); 543 return -EIO; 544 } 545 546 clear_bit(FC_VFI_REGISTERED, &vport->fc_flag); 547 return 0; 548} 549 550/** 551 * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean. 552 * @vport: pointer to a host virtual N_Port data structure. 553 * @sp: pointer to service parameter data structure. 554 * 555 * This routine is called from FLOGI/FDISC completion handler functions. 556 * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric 557 * node nodename is changed in the completion service parameter else return 558 * 0. This function also set flag in the vport data structure to delay 559 * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit 560 * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric 561 * node nodename is changed in the completion service parameter. 562 * 563 * Return code 564 * 0 - FCID and Fabric Nodename and Fabric portname is not changed. 565 * 1 - FCID or Fabric Nodename or Fabric portname is changed. 566 * 567 **/ 568static uint8_t 569lpfc_check_clean_addr_bit(struct lpfc_vport *vport, 570 struct serv_parm *sp) 571{ 572 struct lpfc_hba *phba = vport->phba; 573 uint8_t fabric_param_changed = 0; 574 575 if ((vport->fc_prevDID != vport->fc_myDID) || 576 memcmp(&vport->fabric_portname, &sp->portName, 577 sizeof(struct lpfc_name)) || 578 memcmp(&vport->fabric_nodename, &sp->nodeName, 579 sizeof(struct lpfc_name)) || 580 (vport->vport_flag & FAWWPN_PARAM_CHG)) { 581 fabric_param_changed = 1; 582 vport->vport_flag &= ~FAWWPN_PARAM_CHG; 583 } 584 /* 585 * Word 1 Bit 31 in common service parameter is overloaded. 586 * Word 1 Bit 31 in FLOGI request is multiple NPort request 587 * Word 1 Bit 31 in FLOGI response is clean address bit 588 * 589 * If fabric parameter is changed and clean address bit is 590 * cleared delay nport discovery if 591 * - vport->fc_prevDID != 0 (not initial discovery) OR 592 * - lpfc_delay_discovery module parameter is set. 593 */ 594 if (fabric_param_changed && !sp->cmn.clean_address_bit && 595 (vport->fc_prevDID || phba->cfg_delay_discovery)) 596 set_bit(FC_DISC_DELAYED, &vport->fc_flag); 597 598 return fabric_param_changed; 599} 600 601 602/** 603 * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port 604 * @vport: pointer to a host virtual N_Port data structure. 605 * @ndlp: pointer to a node-list data structure. 606 * @sp: pointer to service parameter data structure. 607 * @ulp_word4: command response value 608 * 609 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback 610 * function to handle the completion of a Fabric Login (FLOGI) into a fabric 611 * port in a fabric topology. It properly sets up the parameters to the @ndlp 612 * from the IOCB response. It also check the newly assigned N_Port ID to the 613 * @vport against the previously assigned N_Port ID. If it is different from 614 * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine 615 * is invoked on all the remaining nodes with the @vport to unregister the 616 * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin() 617 * is invoked to register login to the fabric. 618 * 619 * Return code 620 * 0 - Success (currently, always return 0) 621 **/ 622static int 623lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 624 struct serv_parm *sp, uint32_t ulp_word4) 625{ 626 struct lpfc_hba *phba = vport->phba; 627 struct lpfc_nodelist *np; 628 struct lpfc_nodelist *next_np; 629 uint8_t fabric_param_changed; 630 631 set_bit(FC_FABRIC, &vport->fc_flag); 632 633 phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov); 634 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 635 phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000; 636 637 phba->fc_edtovResol = sp->cmn.edtovResolution; 638 phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000; 639 640 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) 641 set_bit(FC_PUBLIC_LOOP, &vport->fc_flag); 642 643 vport->fc_myDID = ulp_word4 & Mask_DID; 644 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); 645 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name)); 646 ndlp->nlp_class_sup = 0; 647 if (sp->cls1.classValid) 648 ndlp->nlp_class_sup |= FC_COS_CLASS1; 649 if (sp->cls2.classValid) 650 ndlp->nlp_class_sup |= FC_COS_CLASS2; 651 if (sp->cls3.classValid) 652 ndlp->nlp_class_sup |= FC_COS_CLASS3; 653 ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | 654 sp->cmn.bbRcvSizeLsb; 655 656 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); 657 if (fabric_param_changed) { 658 /* Reset FDMI attribute masks based on config parameter */ 659 if (phba->cfg_enable_SmartSAN || 660 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { 661 /* Setup appropriate attribute masks */ 662 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR; 663 if (phba->cfg_enable_SmartSAN) 664 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR; 665 else 666 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR; 667 } else { 668 vport->fdmi_hba_mask = 0; 669 vport->fdmi_port_mask = 0; 670 } 671 672 } 673 memcpy(&vport->fabric_portname, &sp->portName, 674 sizeof(struct lpfc_name)); 675 memcpy(&vport->fabric_nodename, &sp->nodeName, 676 sizeof(struct lpfc_name)); 677 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 678 679 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { 680 if (sp->cmn.response_multiple_NPort) { 681 lpfc_printf_vlog(vport, KERN_WARNING, 682 LOG_ELS | LOG_VPORT, 683 "1816 FLOGI NPIV supported, " 684 "response data 0x%x\n", 685 sp->cmn.response_multiple_NPort); 686 spin_lock_irq(&phba->hbalock); 687 phba->link_flag |= LS_NPIV_FAB_SUPPORTED; 688 spin_unlock_irq(&phba->hbalock); 689 } else { 690 /* Because we asked f/w for NPIV it still expects us 691 to call reg_vnpid at least for the physical host */ 692 lpfc_printf_vlog(vport, KERN_WARNING, 693 LOG_ELS | LOG_VPORT, 694 "1817 Fabric does not support NPIV " 695 "- configuring single port mode.\n"); 696 spin_lock_irq(&phba->hbalock); 697 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 698 spin_unlock_irq(&phba->hbalock); 699 } 700 } 701 702 /* 703 * For FC we need to do some special processing because of the SLI 704 * Port's default settings of the Common Service Parameters. 705 */ 706 if ((phba->sli_rev == LPFC_SLI_REV4) && 707 (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)) { 708 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */ 709 if (fabric_param_changed) 710 lpfc_unregister_fcf_prep(phba); 711 712 /* This should just update the VFI CSPs*/ 713 if (test_bit(FC_VFI_REGISTERED, &vport->fc_flag)) 714 lpfc_issue_reg_vfi(vport); 715 } 716 717 if (fabric_param_changed && 718 !test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) { 719 720 /* If our NportID changed, we need to ensure all 721 * remaining NPORTs get unreg_login'ed. 722 */ 723 list_for_each_entry_safe(np, next_np, 724 &vport->fc_nodes, nlp_listp) { 725 if ((np->nlp_state != NLP_STE_NPR_NODE) || 726 !test_bit(NLP_NPR_ADISC, &np->nlp_flag)) 727 continue; 728 clear_bit(NLP_NPR_ADISC, &np->nlp_flag); 729 lpfc_unreg_rpi(vport, np); 730 } 731 lpfc_cleanup_pending_mbox(vport); 732 733 if (phba->sli_rev == LPFC_SLI_REV4) { 734 lpfc_sli4_unreg_all_rpis(vport); 735 lpfc_mbx_unreg_vpi(vport); 736 set_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag); 737 } 738 739 /* 740 * For SLI3 and SLI4, the VPI needs to be reregistered in 741 * response to this fabric parameter change event. 742 */ 743 set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); 744 } else if ((phba->sli_rev == LPFC_SLI_REV4) && 745 !test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) { 746 /* 747 * Driver needs to re-reg VPI in order for f/w 748 * to update the MAC address. 749 */ 750 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 751 lpfc_register_new_vport(phba, vport, ndlp); 752 return 0; 753 } 754 755 if (phba->sli_rev < LPFC_SLI_REV4) { 756 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); 757 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED && 758 test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) 759 lpfc_register_new_vport(phba, vport, ndlp); 760 else 761 lpfc_issue_fabric_reglogin(vport); 762 } else { 763 ndlp->nlp_type |= NLP_FABRIC; 764 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 765 if ((!test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) && 766 (vport->vpi_state & LPFC_VPI_REGISTERED)) { 767 lpfc_start_fdiscs(phba); 768 lpfc_do_scr_ns_plogi(phba, vport); 769 } else if (test_bit(FC_VFI_REGISTERED, &vport->fc_flag)) 770 lpfc_issue_init_vpi(vport); 771 else { 772 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 773 "3135 Need register VFI: (x%x/%x)\n", 774 vport->fc_prevDID, vport->fc_myDID); 775 lpfc_issue_reg_vfi(vport); 776 } 777 } 778 return 0; 779} 780 781/** 782 * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port 783 * @vport: pointer to a host virtual N_Port data structure. 784 * @ndlp: pointer to a node-list data structure. 785 * @sp: pointer to service parameter data structure. 786 * 787 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback 788 * function to handle the completion of a Fabric Login (FLOGI) into an N_Port 789 * in a point-to-point topology. First, the @vport's N_Port Name is compared 790 * with the received N_Port Name: if the @vport's N_Port Name is greater than 791 * the received N_Port Name lexicographically, this node shall assign local 792 * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and 793 * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise, 794 * this node shall just wait for the remote node to issue PLOGI and assign 795 * N_Port IDs. 796 * 797 * Return code 798 * 0 - Success 799 * -ENXIO - Fail 800 **/ 801static int 802lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 803 struct serv_parm *sp) 804{ 805 struct lpfc_hba *phba = vport->phba; 806 LPFC_MBOXQ_t *mbox; 807 int rc; 808 809 clear_bit(FC_FABRIC, &vport->fc_flag); 810 clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag); 811 set_bit(FC_PT2PT, &vport->fc_flag); 812 813 /* If we are pt2pt with another NPort, force NPIV off! */ 814 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 815 816 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */ 817 if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) { 818 lpfc_unregister_fcf_prep(phba); 819 clear_bit(FC_VFI_REGISTERED, &vport->fc_flag); 820 phba->fc_topology_changed = 0; 821 } 822 823 rc = memcmp(&vport->fc_portname, &sp->portName, 824 sizeof(vport->fc_portname)); 825 826 if (rc >= 0) { 827 /* This side will initiate the PLOGI */ 828 set_bit(FC_PT2PT_PLOGI, &vport->fc_flag); 829 830 /* 831 * N_Port ID cannot be 0, set our Id to LocalID 832 * the other side will be RemoteID. 833 */ 834 835 /* not equal */ 836 if (rc) 837 vport->fc_myDID = PT2PT_LocalID; 838 839 /* If not registered with a transport, decrement ndlp reference 840 * count indicating that ndlp can be safely released when other 841 * references are removed. 842 */ 843 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) 844 lpfc_nlp_put(ndlp); 845 846 ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID); 847 if (!ndlp) { 848 /* 849 * Cannot find existing Fabric ndlp, so allocate a 850 * new one 851 */ 852 ndlp = lpfc_nlp_init(vport, PT2PT_RemoteID); 853 if (!ndlp) 854 goto fail; 855 } 856 857 memcpy(&ndlp->nlp_portname, &sp->portName, 858 sizeof(struct lpfc_name)); 859 memcpy(&ndlp->nlp_nodename, &sp->nodeName, 860 sizeof(struct lpfc_name)); 861 /* Set state will put ndlp onto node list if not already done */ 862 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 863 set_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 864 865 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 866 if (!mbox) 867 goto fail; 868 869 lpfc_config_link(phba, mbox); 870 871 mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 872 mbox->vport = vport; 873 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 874 if (rc == MBX_NOT_FINISHED) { 875 mempool_free(mbox, phba->mbox_mem_pool); 876 goto fail; 877 } 878 } else { 879 /* This side will wait for the PLOGI. If not registered with 880 * a transport, decrement node reference count indicating that 881 * ndlp can be released when other references are removed. 882 */ 883 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) 884 lpfc_nlp_put(ndlp); 885 886 /* Start discovery - this should just do CLEAR_LA */ 887 lpfc_disc_start(vport); 888 } 889 890 return 0; 891fail: 892 return -ENXIO; 893} 894 895/** 896 * lpfc_cmpl_els_flogi - Completion callback function for flogi 897 * @phba: pointer to lpfc hba data structure. 898 * @cmdiocb: pointer to lpfc command iocb data structure. 899 * @rspiocb: pointer to lpfc response iocb data structure. 900 * 901 * This routine is the top-level completion callback function for issuing 902 * a Fabric Login (FLOGI) command. If the response IOCB reported error, 903 * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If 904 * retry has been made (either immediately or delayed with lpfc_els_retry() 905 * returning 1), the command IOCB will be released and function returned. 906 * If the retry attempt has been given up (possibly reach the maximum 907 * number of retries), one additional decrement of ndlp reference shall be 908 * invoked before going out after releasing the command IOCB. This will 909 * actually release the remote node (Note, lpfc_els_free_iocb() will also 910 * invoke one decrement of ndlp reference count). If no error reported in 911 * the IOCB status, the command Port ID field is used to determine whether 912 * this is a point-to-point topology or a fabric topology: if the Port ID 913 * field is assigned, it is a fabric topology; otherwise, it is a 914 * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or 915 * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the 916 * specific topology completion conditions. 917 **/ 918static void 919lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 920 struct lpfc_iocbq *rspiocb) 921{ 922 struct lpfc_vport *vport = cmdiocb->vport; 923 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 924 IOCB_t *irsp; 925 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf, *prsp; 926 struct serv_parm *sp; 927 uint16_t fcf_index; 928 int rc; 929 u32 ulp_status, ulp_word4, tmo; 930 bool flogi_in_retry = false; 931 932 /* Check to see if link went down during discovery */ 933 if (lpfc_els_chk_latt(vport)) { 934 /* One additional decrement on node reference count to 935 * trigger the release of the node. Make sure the ndlp 936 * is marked NLP_DROPPED. 937 */ 938 if (!test_bit(NLP_IN_DEV_LOSS, &ndlp->nlp_flag) && 939 !test_bit(NLP_DROPPED, &ndlp->nlp_flag) && 940 !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) { 941 set_bit(NLP_DROPPED, &ndlp->nlp_flag); 942 lpfc_nlp_put(ndlp); 943 } 944 goto out; 945 } 946 947 ulp_status = get_job_ulpstatus(phba, rspiocb); 948 ulp_word4 = get_job_word4(phba, rspiocb); 949 950 if (phba->sli_rev == LPFC_SLI_REV4) { 951 tmo = get_wqe_tmo(cmdiocb); 952 } else { 953 irsp = &rspiocb->iocb; 954 tmo = irsp->ulpTimeout; 955 } 956 957 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 958 "FLOGI cmpl: status:x%x/x%x state:x%x", 959 ulp_status, ulp_word4, 960 vport->port_state); 961 962 if (ulp_status) { 963 /* 964 * In case of FIP mode, perform roundrobin FCF failover 965 * due to new FCF discovery 966 */ 967 if (test_bit(HBA_FIP_SUPPORT, &phba->hba_flag) && 968 (phba->fcf.fcf_flag & FCF_DISCOVERY)) { 969 if (phba->link_state < LPFC_LINK_UP) 970 goto stop_rr_fcf_flogi; 971 if ((phba->fcoe_cvl_eventtag_attn == 972 phba->fcoe_cvl_eventtag) && 973 (ulp_status == IOSTAT_LOCAL_REJECT) && 974 ((ulp_word4 & IOERR_PARAM_MASK) == 975 IOERR_SLI_ABORTED)) 976 goto stop_rr_fcf_flogi; 977 else 978 phba->fcoe_cvl_eventtag_attn = 979 phba->fcoe_cvl_eventtag; 980 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 981 "2611 FLOGI FCF (x%x), " 982 "status:x%x/x%x, tmo:x%x, perform " 983 "roundrobin FCF failover\n", 984 phba->fcf.current_rec.fcf_indx, 985 ulp_status, ulp_word4, tmo); 986 lpfc_sli4_set_fcf_flogi_fail(phba, 987 phba->fcf.current_rec.fcf_indx); 988 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 989 rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index); 990 if (rc) 991 goto out; 992 } 993 994stop_rr_fcf_flogi: 995 /* FLOGI failure */ 996 if (!(ulp_status == IOSTAT_LOCAL_REJECT && 997 ((ulp_word4 & IOERR_PARAM_MASK) == 998 IOERR_LOOP_OPEN_FAILURE))) 999 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 1000 "2858 FLOGI Status:x%x/x%x TMO" 1001 ":x%x Data x%lx x%x x%lx x%x\n", 1002 ulp_status, ulp_word4, tmo, 1003 phba->hba_flag, phba->fcf.fcf_flag, 1004 ndlp->nlp_flag, ndlp->fc4_xpt_flags); 1005 1006 /* Check for retry */ 1007 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { 1008 /* Address a timing race with dev_loss. If dev_loss 1009 * is active on this FPort node, put the initial ref 1010 * count back to stop premature node release actions. 1011 */ 1012 lpfc_check_nlp_post_devloss(vport, ndlp); 1013 flogi_in_retry = true; 1014 goto out; 1015 } 1016 1017 /* The FLOGI will not be retried. If the FPort node is not 1018 * registered with the SCSI transport, remove the initial 1019 * reference to trigger node release. 1020 */ 1021 if (!test_bit(NLP_IN_DEV_LOSS, &ndlp->nlp_flag) && 1022 !test_bit(NLP_DROPPED, &ndlp->nlp_flag) && 1023 !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) { 1024 set_bit(NLP_DROPPED, &ndlp->nlp_flag); 1025 lpfc_nlp_put(ndlp); 1026 } 1027 1028 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS, 1029 "0150 FLOGI Status:x%x/x%x " 1030 "xri x%x iotag x%x TMO:x%x refcnt %d\n", 1031 ulp_status, ulp_word4, cmdiocb->sli4_xritag, 1032 cmdiocb->iotag, tmo, kref_read(&ndlp->kref)); 1033 1034 /* If this is not a loop open failure, bail out */ 1035 if (!(ulp_status == IOSTAT_LOCAL_REJECT && 1036 ((ulp_word4 & IOERR_PARAM_MASK) == 1037 IOERR_LOOP_OPEN_FAILURE))) { 1038 /* Warn FLOGI status */ 1039 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 1040 "0100 FLOGI Status:x%x/x%x " 1041 "TMO:x%x\n", 1042 ulp_status, ulp_word4, tmo); 1043 goto flogifail; 1044 } 1045 1046 /* FLOGI failed, so there is no fabric */ 1047 clear_bit(FC_FABRIC, &vport->fc_flag); 1048 clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag); 1049 clear_bit(FC_PT2PT_NO_NVME, &vport->fc_flag); 1050 1051 /* If private loop, then allow max outstanding els to be 1052 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no 1053 * alpa map would take too long otherwise. 1054 */ 1055 if (phba->alpa_map[0] == 0) 1056 vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS; 1057 if ((phba->sli_rev == LPFC_SLI_REV4) && 1058 (!test_bit(FC_VFI_REGISTERED, &vport->fc_flag) || 1059 (vport->fc_prevDID != vport->fc_myDID) || 1060 phba->fc_topology_changed)) { 1061 if (test_bit(FC_VFI_REGISTERED, &vport->fc_flag)) { 1062 if (phba->fc_topology_changed) { 1063 lpfc_unregister_fcf_prep(phba); 1064 clear_bit(FC_VFI_REGISTERED, 1065 &vport->fc_flag); 1066 phba->fc_topology_changed = 0; 1067 } else { 1068 lpfc_sli4_unreg_all_rpis(vport); 1069 } 1070 } 1071 1072 /* Do not register VFI if the driver aborted FLOGI */ 1073 if (!lpfc_error_lost_link(vport, ulp_status, ulp_word4)) 1074 lpfc_issue_reg_vfi(vport); 1075 1076 goto out; 1077 } 1078 goto flogifail; 1079 } 1080 clear_bit(FC_VPORT_CVL_RCVD, &vport->fc_flag); 1081 clear_bit(FC_VPORT_LOGO_RCVD, &vport->fc_flag); 1082 1083 /* 1084 * The FLOGI succeeded. Sync the data for the CPU before 1085 * accessing it. 1086 */ 1087 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1088 if (!prsp) 1089 goto out; 1090 if (!lpfc_is_els_acc_rsp(prsp)) 1091 goto out; 1092 sp = prsp->virt + sizeof(uint32_t); 1093 1094 /* FLOGI completes successfully */ 1095 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1096 "0101 FLOGI completes successfully, I/O tag:x%x " 1097 "xri x%x Data: x%x x%x x%x x%x x%x x%lx x%x %d\n", 1098 cmdiocb->iotag, cmdiocb->sli4_xritag, 1099 ulp_word4, sp->cmn.e_d_tov, 1100 sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution, 1101 vport->port_state, vport->fc_flag, 1102 sp->cmn.priority_tagging, kref_read(&ndlp->kref)); 1103 1104 /* reinitialize the VMID datastructure before returning */ 1105 if (lpfc_is_vmid_enabled(phba)) { 1106 lpfc_reinit_vmid(vport); 1107 vport->vmid_flag = 0; 1108 } 1109 if (sp->cmn.priority_tagging) 1110 vport->phba->pport->vmid_flag |= (LPFC_VMID_ISSUE_QFPA | 1111 LPFC_VMID_TYPE_PRIO); 1112 1113 /* 1114 * Address a timing race with dev_loss. If dev_loss is active on 1115 * this FPort node, put the initial ref count back to stop premature 1116 * node release actions. 1117 */ 1118 lpfc_check_nlp_post_devloss(vport, ndlp); 1119 if (vport->port_state == LPFC_FLOGI) { 1120 /* 1121 * If Common Service Parameters indicate Nport 1122 * we are point to point, if Fport we are Fabric. 1123 */ 1124 if (sp->cmn.fPort) 1125 rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, 1126 ulp_word4); 1127 else if (!test_bit(HBA_FCOE_MODE, &phba->hba_flag)) 1128 rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp); 1129 else { 1130 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1131 "2831 FLOGI response with cleared Fabric " 1132 "bit fcf_index 0x%x " 1133 "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x " 1134 "Fabric Name " 1135 "%02x%02x%02x%02x%02x%02x%02x%02x\n", 1136 phba->fcf.current_rec.fcf_indx, 1137 phba->fcf.current_rec.switch_name[0], 1138 phba->fcf.current_rec.switch_name[1], 1139 phba->fcf.current_rec.switch_name[2], 1140 phba->fcf.current_rec.switch_name[3], 1141 phba->fcf.current_rec.switch_name[4], 1142 phba->fcf.current_rec.switch_name[5], 1143 phba->fcf.current_rec.switch_name[6], 1144 phba->fcf.current_rec.switch_name[7], 1145 phba->fcf.current_rec.fabric_name[0], 1146 phba->fcf.current_rec.fabric_name[1], 1147 phba->fcf.current_rec.fabric_name[2], 1148 phba->fcf.current_rec.fabric_name[3], 1149 phba->fcf.current_rec.fabric_name[4], 1150 phba->fcf.current_rec.fabric_name[5], 1151 phba->fcf.current_rec.fabric_name[6], 1152 phba->fcf.current_rec.fabric_name[7]); 1153 1154 lpfc_nlp_put(ndlp); 1155 spin_lock_irq(&phba->hbalock); 1156 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 1157 spin_unlock_irq(&phba->hbalock); 1158 clear_bit(FCF_RR_INPROG, &phba->hba_flag); 1159 clear_bit(HBA_DEVLOSS_TMO, &phba->hba_flag); 1160 phba->fcf.fcf_redisc_attempted = 0; /* reset */ 1161 goto out; 1162 } 1163 if (!rc) { 1164 /* Mark the FCF discovery process done */ 1165 if (test_bit(HBA_FIP_SUPPORT, &phba->hba_flag)) 1166 lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP | 1167 LOG_ELS, 1168 "2769 FLOGI to FCF (x%x) " 1169 "completed successfully\n", 1170 phba->fcf.current_rec.fcf_indx); 1171 spin_lock_irq(&phba->hbalock); 1172 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 1173 spin_unlock_irq(&phba->hbalock); 1174 clear_bit(FCF_RR_INPROG, &phba->hba_flag); 1175 clear_bit(HBA_DEVLOSS_TMO, &phba->hba_flag); 1176 phba->fcf.fcf_redisc_attempted = 0; /* reset */ 1177 goto out; 1178 } 1179 } else if (vport->port_state > LPFC_FLOGI && 1180 test_bit(FC_PT2PT, &vport->fc_flag)) { 1181 /* 1182 * In a p2p topology, it is possible that discovery has 1183 * already progressed, and this completion can be ignored. 1184 * Recheck the indicated topology. 1185 */ 1186 if (!sp->cmn.fPort) 1187 goto out; 1188 } 1189 1190flogifail: 1191 spin_lock_irq(&phba->hbalock); 1192 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 1193 spin_unlock_irq(&phba->hbalock); 1194 1195 if (!lpfc_error_lost_link(vport, ulp_status, ulp_word4)) { 1196 /* FLOGI failed, so just use loop map to make discovery list */ 1197 lpfc_disc_list_loopmap(vport); 1198 1199 /* Start discovery */ 1200 lpfc_disc_start(vport); 1201 } else if (((ulp_status != IOSTAT_LOCAL_REJECT) || 1202 (((ulp_word4 & IOERR_PARAM_MASK) != 1203 IOERR_SLI_ABORTED) && 1204 ((ulp_word4 & IOERR_PARAM_MASK) != 1205 IOERR_SLI_DOWN))) && 1206 (phba->link_state != LPFC_CLEAR_LA)) { 1207 /* If FLOGI failed enable link interrupt. */ 1208 lpfc_issue_clear_la(phba, vport); 1209 } 1210out: 1211 if (!flogi_in_retry) 1212 clear_bit(HBA_FLOGI_OUTSTANDING, &phba->hba_flag); 1213 1214 lpfc_els_free_iocb(phba, cmdiocb); 1215 lpfc_nlp_put(ndlp); 1216} 1217 1218/** 1219 * lpfc_cmpl_els_link_down - Completion callback function for ELS command 1220 * aborted during a link down 1221 * @phba: pointer to lpfc hba data structure. 1222 * @cmdiocb: pointer to lpfc command iocb data structure. 1223 * @rspiocb: pointer to lpfc response iocb data structure. 1224 * 1225 */ 1226static void 1227lpfc_cmpl_els_link_down(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 1228 struct lpfc_iocbq *rspiocb) 1229{ 1230 uint32_t *pcmd; 1231 uint32_t cmd; 1232 u32 ulp_status, ulp_word4; 1233 1234 pcmd = (uint32_t *)cmdiocb->cmd_dmabuf->virt; 1235 cmd = *pcmd; 1236 1237 ulp_status = get_job_ulpstatus(phba, rspiocb); 1238 ulp_word4 = get_job_word4(phba, rspiocb); 1239 1240 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 1241 "6445 ELS completes after LINK_DOWN: " 1242 " Status %x/%x cmd x%x flg x%x iotag x%x\n", 1243 ulp_status, ulp_word4, cmd, 1244 cmdiocb->cmd_flag, cmdiocb->iotag); 1245 1246 if (cmdiocb->cmd_flag & LPFC_IO_FABRIC) { 1247 cmdiocb->cmd_flag &= ~LPFC_IO_FABRIC; 1248 atomic_dec(&phba->fabric_iocb_count); 1249 } 1250 lpfc_els_free_iocb(phba, cmdiocb); 1251} 1252 1253/** 1254 * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport 1255 * @vport: pointer to a host virtual N_Port data structure. 1256 * @ndlp: pointer to a node-list data structure. 1257 * @retry: number of retries to the command IOCB. 1258 * 1259 * This routine issues a Fabric Login (FLOGI) Request ELS command 1260 * for a @vport. The initiator service parameters are put into the payload 1261 * of the FLOGI Request IOCB and the top-level callback function pointer 1262 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback 1263 * function field. The lpfc_issue_fabric_iocb routine is invoked to send 1264 * out FLOGI ELS command with one outstanding fabric IOCB at a time. 1265 * 1266 * Note that the ndlp reference count will be incremented by 1 for holding the 1267 * ndlp and the reference to ndlp will be stored into the ndlp field of 1268 * the IOCB for the completion callback function to the FLOGI ELS command. 1269 * 1270 * Return code 1271 * 0 - successfully issued flogi iocb for @vport 1272 * 1 - failed to issue flogi iocb for @vport 1273 **/ 1274static int 1275lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1276 uint8_t retry) 1277{ 1278 struct lpfc_hba *phba = vport->phba; 1279 struct serv_parm *sp; 1280 union lpfc_wqe128 *wqe = NULL; 1281 IOCB_t *icmd = NULL; 1282 struct lpfc_iocbq *elsiocb; 1283 struct lpfc_iocbq defer_flogi_acc; 1284 u8 *pcmd, ct; 1285 uint16_t cmdsize; 1286 uint32_t tmo, did; 1287 int rc; 1288 1289 /* It's possible for lpfc to reissue a FLOGI on an ndlp that is marked 1290 * NLP_DROPPED. This happens when the FLOGI completed with the XB bit 1291 * set causing lpfc to reference the ndlp until the XRI_ABORTED CQE is 1292 * issued. The time window for the XRI_ABORTED CQE can be as much as 1293 * 2*2*RA_TOV allowing for ndlp reuse of this type when the link is 1294 * cycling quickly. When true, restore the initial reference and remove 1295 * the NLP_DROPPED flag as lpfc is retrying. 1296 */ 1297 if (test_and_clear_bit(NLP_DROPPED, &ndlp->nlp_flag)) { 1298 if (!lpfc_nlp_get(ndlp)) 1299 return 1; 1300 } 1301 1302 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); 1303 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 1304 ndlp->nlp_DID, ELS_CMD_FLOGI); 1305 1306 if (!elsiocb) 1307 return 1; 1308 1309 wqe = &elsiocb->wqe; 1310 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 1311 icmd = &elsiocb->iocb; 1312 1313 /* For FLOGI request, remainder of payload is service parameters */ 1314 *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI; 1315 pcmd += sizeof(uint32_t); 1316 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); 1317 sp = (struct serv_parm *) pcmd; 1318 1319 /* Setup CSPs accordingly for Fabric */ 1320 sp->cmn.e_d_tov = 0; 1321 sp->cmn.w2.r_a_tov = 0; 1322 sp->cmn.virtual_fabric_support = 0; 1323 sp->cls1.classValid = 0; 1324 if (sp->cmn.fcphLow < FC_PH3) 1325 sp->cmn.fcphLow = FC_PH3; 1326 if (sp->cmn.fcphHigh < FC_PH3) 1327 sp->cmn.fcphHigh = FC_PH3; 1328 1329 /* Determine if switch supports priority tagging */ 1330 if (phba->cfg_vmid_priority_tagging) { 1331 sp->cmn.priority_tagging = 1; 1332 /* lpfc_vmid_host_uuid is combination of wwpn and wwnn */ 1333 if (!memchr_inv(vport->lpfc_vmid_host_uuid, 0, 1334 sizeof(vport->lpfc_vmid_host_uuid))) { 1335 memcpy(vport->lpfc_vmid_host_uuid, phba->wwpn, 1336 sizeof(phba->wwpn)); 1337 memcpy(&vport->lpfc_vmid_host_uuid[8], phba->wwnn, 1338 sizeof(phba->wwnn)); 1339 } 1340 } 1341 1342 if (phba->sli_rev == LPFC_SLI_REV4) { 1343 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 1344 LPFC_SLI_INTF_IF_TYPE_0) { 1345 /* FLOGI needs to be 3 for WQE FCFI */ 1346 ct = SLI4_CT_FCFI; 1347 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct); 1348 1349 /* Set the fcfi to the fcfi we registered with */ 1350 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com, 1351 phba->fcf.fcfi); 1352 } 1353 1354 /* Can't do SLI4 class2 without support sequence coalescing */ 1355 sp->cls2.classValid = 0; 1356 sp->cls2.seqDelivery = 0; 1357 1358 /* Fill out Auxiliary Parameter Data */ 1359 if (phba->pni) { 1360 sp->aux.flags = 1361 AUX_PARM_DATA_VALID | AUX_PARM_PNI_VALID; 1362 sp->aux.pni = cpu_to_be64(phba->pni); 1363 sp->aux.npiv_cnt = cpu_to_be16(phba->max_vpi - 1); 1364 } 1365 } else { 1366 /* Historical, setting sequential-delivery bit for SLI3 */ 1367 sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0; 1368 sp->cls3.seqDelivery = (sp->cls3.classValid) ? 1 : 0; 1369 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { 1370 sp->cmn.request_multiple_Nport = 1; 1371 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */ 1372 icmd->ulpCt_h = 1; 1373 icmd->ulpCt_l = 0; 1374 } else { 1375 sp->cmn.request_multiple_Nport = 0; 1376 } 1377 1378 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) { 1379 icmd->un.elsreq64.myID = 0; 1380 icmd->un.elsreq64.fl = 1; 1381 } 1382 } 1383 1384 tmo = phba->fc_ratov; 1385 phba->fc_ratov = LPFC_DISC_FLOGI_TMO; 1386 lpfc_set_disctmo(vport); 1387 phba->fc_ratov = tmo; 1388 1389 phba->fc_stat.elsXmitFLOGI++; 1390 elsiocb->cmd_cmpl = lpfc_cmpl_els_flogi; 1391 1392 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1393 "Issue FLOGI: opt:x%x", 1394 phba->sli3_options, 0, 0); 1395 1396 elsiocb->ndlp = lpfc_nlp_get(ndlp); 1397 if (!elsiocb->ndlp) { 1398 lpfc_els_free_iocb(phba, elsiocb); 1399 return 1; 1400 } 1401 1402 /* Avoid race with FLOGI completion and hba_flags. */ 1403 set_bit(HBA_FLOGI_ISSUED, &phba->hba_flag); 1404 set_bit(HBA_FLOGI_OUTSTANDING, &phba->hba_flag); 1405 1406 rc = lpfc_issue_fabric_iocb(phba, elsiocb); 1407 if (rc == IOCB_ERROR) { 1408 clear_bit(HBA_FLOGI_ISSUED, &phba->hba_flag); 1409 clear_bit(HBA_FLOGI_OUTSTANDING, &phba->hba_flag); 1410 lpfc_els_free_iocb(phba, elsiocb); 1411 lpfc_nlp_put(ndlp); 1412 return 1; 1413 } 1414 1415 /* Clear external loopback plug detected flag */ 1416 phba->link_flag &= ~LS_EXTERNAL_LOOPBACK; 1417 1418 /* Check for a deferred FLOGI ACC condition */ 1419 if (phba->defer_flogi_acc.flag) { 1420 /* lookup ndlp for received FLOGI */ 1421 ndlp = lpfc_findnode_did(vport, 0); 1422 if (!ndlp) 1423 return 0; 1424 1425 did = vport->fc_myDID; 1426 vport->fc_myDID = Fabric_DID; 1427 1428 memset(&defer_flogi_acc, 0, sizeof(struct lpfc_iocbq)); 1429 1430 if (phba->sli_rev == LPFC_SLI_REV4) { 1431 bf_set(wqe_ctxt_tag, 1432 &defer_flogi_acc.wqe.xmit_els_rsp.wqe_com, 1433 phba->defer_flogi_acc.rx_id); 1434 bf_set(wqe_rcvoxid, 1435 &defer_flogi_acc.wqe.xmit_els_rsp.wqe_com, 1436 phba->defer_flogi_acc.ox_id); 1437 } else { 1438 icmd = &defer_flogi_acc.iocb; 1439 icmd->ulpContext = phba->defer_flogi_acc.rx_id; 1440 icmd->unsli3.rcvsli3.ox_id = 1441 phba->defer_flogi_acc.ox_id; 1442 } 1443 1444 /* The LS_ACC completion needs to drop the initial reference. 1445 * This is a special case for Pt2Pt because both FLOGIs need 1446 * to complete and lpfc defers the LS_ACC when the remote 1447 * FLOGI arrives before the driver's FLOGI. 1448 */ 1449 set_bit(NLP_FLOGI_DFR_ACC, &ndlp->nlp_flag); 1450 1451 /* Send deferred FLOGI ACC */ 1452 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, &defer_flogi_acc, 1453 ndlp, NULL); 1454 1455 phba->defer_flogi_acc.flag = false; 1456 1457 /* Decrement the held ndlp that was incremented when the 1458 * deferred flogi acc flag was set. 1459 */ 1460 if (phba->defer_flogi_acc.ndlp) { 1461 lpfc_nlp_put(phba->defer_flogi_acc.ndlp); 1462 phba->defer_flogi_acc.ndlp = NULL; 1463 } 1464 1465 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1466 "3354 Xmit deferred FLOGI ACC: rx_id: x%x," 1467 " ox_id: x%x, ndlp x%px hba_flag x%lx\n", 1468 phba->defer_flogi_acc.rx_id, 1469 phba->defer_flogi_acc.ox_id, 1470 phba->defer_flogi_acc.ndlp, 1471 phba->hba_flag); 1472 1473 vport->fc_myDID = did; 1474 } 1475 1476 return 0; 1477} 1478 1479/** 1480 * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs 1481 * @phba: pointer to lpfc hba data structure. 1482 * 1483 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs 1484 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq 1485 * list and issues an abort IOCB commond on each outstanding IOCB that 1486 * contains a active Fabric_DID ndlp. Note that this function is to issue 1487 * the abort IOCB command on all the outstanding IOCBs, thus when this 1488 * function returns, it does not guarantee all the IOCBs are actually aborted. 1489 * 1490 * Return code 1491 * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0) 1492 **/ 1493int 1494lpfc_els_abort_flogi(struct lpfc_hba *phba) 1495{ 1496 struct lpfc_sli_ring *pring; 1497 struct lpfc_iocbq *iocb, *next_iocb; 1498 struct lpfc_nodelist *ndlp; 1499 u32 ulp_command; 1500 1501 /* Abort outstanding I/O on NPort <nlp_DID> */ 1502 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, 1503 "0201 Abort outstanding I/O on NPort x%x\n", 1504 Fabric_DID); 1505 1506 pring = lpfc_phba_elsring(phba); 1507 if (unlikely(!pring)) 1508 return -EIO; 1509 1510 /* 1511 * Check the txcmplq for an iocb that matches the nport the driver is 1512 * searching for. 1513 */ 1514 spin_lock_irq(&phba->hbalock); 1515 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 1516 ulp_command = get_job_cmnd(phba, iocb); 1517 if (ulp_command == CMD_ELS_REQUEST64_CR) { 1518 ndlp = iocb->ndlp; 1519 if (ndlp && ndlp->nlp_DID == Fabric_DID) { 1520 if (test_bit(FC_PT2PT, &phba->pport->fc_flag) && 1521 !test_bit(FC_PT2PT_PLOGI, 1522 &phba->pport->fc_flag)) 1523 iocb->fabric_cmd_cmpl = 1524 lpfc_ignore_els_cmpl; 1525 lpfc_sli_issue_abort_iotag(phba, pring, iocb, 1526 NULL); 1527 } 1528 } 1529 } 1530 /* Make sure HBA is alive */ 1531 lpfc_issue_hb_tmo(phba); 1532 1533 spin_unlock_irq(&phba->hbalock); 1534 1535 return 0; 1536} 1537 1538/** 1539 * lpfc_initial_flogi - Issue an initial fabric login for a vport 1540 * @vport: pointer to a host virtual N_Port data structure. 1541 * 1542 * This routine issues an initial Fabric Login (FLOGI) for the @vport 1543 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from 1544 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and 1545 * put it into the @vport's ndlp list. If an inactive ndlp found on the list, 1546 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine 1547 * is then invoked with the @vport and the ndlp to perform the FLOGI for the 1548 * @vport. 1549 * 1550 * Return code 1551 * 0 - failed to issue initial flogi for @vport 1552 * 1 - successfully issued initial flogi for @vport 1553 **/ 1554int 1555lpfc_initial_flogi(struct lpfc_vport *vport) 1556{ 1557 struct lpfc_nodelist *ndlp; 1558 1559 vport->port_state = LPFC_FLOGI; 1560 lpfc_set_disctmo(vport); 1561 1562 /* First look for the Fabric ndlp */ 1563 ndlp = lpfc_findnode_did(vport, Fabric_DID); 1564 if (!ndlp) { 1565 /* Cannot find existing Fabric ndlp, so allocate a new one */ 1566 ndlp = lpfc_nlp_init(vport, Fabric_DID); 1567 if (!ndlp) 1568 return 0; 1569 /* Set the node type */ 1570 ndlp->nlp_type |= NLP_FABRIC; 1571 1572 /* Put ndlp onto node list */ 1573 lpfc_enqueue_node(vport, ndlp); 1574 } 1575 1576 /* Reset the Fabric flag, topology change may have happened */ 1577 clear_bit(FC_FABRIC, &vport->fc_flag); 1578 if (lpfc_issue_els_flogi(vport, ndlp, 0)) { 1579 /* A node reference should be retained while registered with a 1580 * transport or dev-loss-evt work is pending. 1581 * Otherwise, decrement node reference to trigger release. 1582 */ 1583 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) && 1584 !test_bit(NLP_IN_DEV_LOSS, &ndlp->nlp_flag)) 1585 lpfc_nlp_put(ndlp); 1586 return 0; 1587 } 1588 return 1; 1589} 1590 1591/** 1592 * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport 1593 * @vport: pointer to a host virtual N_Port data structure. 1594 * 1595 * This routine issues an initial Fabric Discover (FDISC) for the @vport 1596 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from 1597 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and 1598 * put it into the @vport's ndlp list. If an inactive ndlp found on the list, 1599 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine 1600 * is then invoked with the @vport and the ndlp to perform the FDISC for the 1601 * @vport. 1602 * 1603 * Return code 1604 * 0 - failed to issue initial fdisc for @vport 1605 * 1 - successfully issued initial fdisc for @vport 1606 **/ 1607int 1608lpfc_initial_fdisc(struct lpfc_vport *vport) 1609{ 1610 struct lpfc_nodelist *ndlp; 1611 1612 /* First look for the Fabric ndlp */ 1613 ndlp = lpfc_findnode_did(vport, Fabric_DID); 1614 if (!ndlp) { 1615 /* Cannot find existing Fabric ndlp, so allocate a new one */ 1616 ndlp = lpfc_nlp_init(vport, Fabric_DID); 1617 if (!ndlp) 1618 return 0; 1619 1620 /* NPIV is only supported in Fabrics. */ 1621 ndlp->nlp_type |= NLP_FABRIC; 1622 1623 /* Put ndlp onto node list */ 1624 lpfc_enqueue_node(vport, ndlp); 1625 } 1626 1627 if (lpfc_issue_els_fdisc(vport, ndlp, 0)) { 1628 /* A node reference should be retained while registered with a 1629 * transport or dev-loss-evt work is pending. 1630 * Otherwise, decrement node reference to trigger release. 1631 */ 1632 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) && 1633 !test_bit(NLP_IN_DEV_LOSS, &ndlp->nlp_flag)) 1634 lpfc_nlp_put(ndlp); 1635 return 0; 1636 } 1637 return 1; 1638} 1639 1640/** 1641 * lpfc_more_plogi - Check and issue remaining plogis for a vport 1642 * @vport: pointer to a host virtual N_Port data structure. 1643 * 1644 * This routine checks whether there are more remaining Port Logins 1645 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine 1646 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes 1647 * to issue ELS PLOGIs up to the configured discover threads with the 1648 * @vport (@vport->cfg_discovery_threads). The function also decrement 1649 * the @vport's num_disc_node by 1 if it is not already 0. 1650 **/ 1651void 1652lpfc_more_plogi(struct lpfc_vport *vport) 1653{ 1654 if (vport->num_disc_nodes) 1655 vport->num_disc_nodes--; 1656 1657 /* Continue discovery with <num_disc_nodes> PLOGIs to go */ 1658 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1659 "0232 Continue discovery with %d PLOGIs to go " 1660 "Data: x%x x%lx x%x\n", 1661 vport->num_disc_nodes, 1662 atomic_read(&vport->fc_plogi_cnt), 1663 vport->fc_flag, vport->port_state); 1664 /* Check to see if there are more PLOGIs to be sent */ 1665 if (test_bit(FC_NLP_MORE, &vport->fc_flag)) 1666 /* go thru NPR nodes and issue any remaining ELS PLOGIs */ 1667 lpfc_els_disc_plogi(vport); 1668 1669 return; 1670} 1671 1672/** 1673 * lpfc_plogi_confirm_nport - Confirm plogi wwpn matches stored ndlp 1674 * @phba: pointer to lpfc hba data structure. 1675 * @prsp: pointer to response IOCB payload. 1676 * @ndlp: pointer to a node-list data structure. 1677 * 1678 * This routine checks and indicates whether the WWPN of an N_Port, retrieved 1679 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt. 1680 * The following cases are considered N_Port confirmed: 1681 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches 1682 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but 1683 * it does not have WWPN assigned either. If the WWPN is confirmed, the 1684 * pointer to the @ndlp will be returned. If the WWPN is not confirmed: 1685 * 1) if there is a node on vport list other than the @ndlp with the same 1686 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked 1687 * on that node to release the RPI associated with the node; 2) if there is 1688 * no node found on vport list with the same WWPN of the N_Port PLOGI logged 1689 * into, a new node shall be allocated (or activated). In either case, the 1690 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall 1691 * be released and the new_ndlp shall be put on to the vport node list and 1692 * its pointer returned as the confirmed node. 1693 * 1694 * Note that before the @ndlp got "released", the keepDID from not-matching 1695 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID 1696 * of the @ndlp. This is because the release of @ndlp is actually to put it 1697 * into an inactive state on the vport node list and the vport node list 1698 * management algorithm does not allow two node with a same DID. 1699 * 1700 * Return code 1701 * pointer to the PLOGI N_Port @ndlp 1702 **/ 1703static struct lpfc_nodelist * 1704lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, 1705 struct lpfc_nodelist *ndlp) 1706{ 1707 struct lpfc_vport *vport = ndlp->vport; 1708 struct lpfc_nodelist *new_ndlp; 1709 struct serv_parm *sp; 1710 uint8_t name[sizeof(struct lpfc_name)]; 1711 uint32_t keepDID = 0; 1712 int rc; 1713 unsigned long keep_nlp_flag = 0, keep_new_nlp_flag = 0; 1714 uint16_t keep_nlp_state; 1715 u32 keep_nlp_fc4_type = 0; 1716 struct lpfc_nvme_rport *keep_nrport = NULL; 1717 unsigned long *active_rrqs_xri_bitmap = NULL; 1718 1719 sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t)); 1720 memset(name, 0, sizeof(struct lpfc_name)); 1721 1722 /* Now we find out if the NPort we are logging into, matches the WWPN 1723 * we have for that ndlp. If not, we have some work to do. 1724 */ 1725 new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName); 1726 1727 /* return immediately if the WWPN matches ndlp */ 1728 if (new_ndlp == ndlp) 1729 return ndlp; 1730 1731 if (phba->sli_rev == LPFC_SLI_REV4) { 1732 active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool, 1733 GFP_KERNEL); 1734 if (active_rrqs_xri_bitmap) 1735 memset(active_rrqs_xri_bitmap, 0, 1736 phba->cfg_rrq_xri_bitmap_sz); 1737 } 1738 1739 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE, 1740 "3178 PLOGI confirm: ndlp x%x x%lx x%x: " 1741 "new_ndlp x%x x%lx x%x\n", 1742 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_fc4_type, 1743 (new_ndlp ? new_ndlp->nlp_DID : 0), 1744 (new_ndlp ? new_ndlp->nlp_flag : 0), 1745 (new_ndlp ? new_ndlp->nlp_fc4_type : 0)); 1746 1747 if (!new_ndlp) { 1748 rc = memcmp(&ndlp->nlp_portname, name, 1749 sizeof(struct lpfc_name)); 1750 if (!rc) { 1751 if (active_rrqs_xri_bitmap) 1752 mempool_free(active_rrqs_xri_bitmap, 1753 phba->active_rrq_pool); 1754 return ndlp; 1755 } 1756 new_ndlp = lpfc_nlp_init(vport, ndlp->nlp_DID); 1757 if (!new_ndlp) { 1758 if (active_rrqs_xri_bitmap) 1759 mempool_free(active_rrqs_xri_bitmap, 1760 phba->active_rrq_pool); 1761 return ndlp; 1762 } 1763 } else { 1764 if (phba->sli_rev == LPFC_SLI_REV4 && 1765 active_rrqs_xri_bitmap) 1766 memcpy(active_rrqs_xri_bitmap, 1767 new_ndlp->active_rrqs_xri_bitmap, 1768 phba->cfg_rrq_xri_bitmap_sz); 1769 1770 /* 1771 * Unregister from backend if not done yet. Could have been 1772 * skipped due to ADISC 1773 */ 1774 lpfc_nlp_unreg_node(vport, new_ndlp); 1775 } 1776 1777 keepDID = new_ndlp->nlp_DID; 1778 1779 /* At this point in this routine, we know new_ndlp will be 1780 * returned. however, any previous GID_FTs that were done 1781 * would have updated nlp_fc4_type in ndlp, so we must ensure 1782 * new_ndlp has the right value. 1783 */ 1784 if (test_bit(FC_FABRIC, &vport->fc_flag)) { 1785 keep_nlp_fc4_type = new_ndlp->nlp_fc4_type; 1786 new_ndlp->nlp_fc4_type = ndlp->nlp_fc4_type; 1787 } 1788 1789 lpfc_unreg_rpi(vport, new_ndlp); 1790 new_ndlp->nlp_DID = ndlp->nlp_DID; 1791 new_ndlp->nlp_prev_state = ndlp->nlp_prev_state; 1792 if (phba->sli_rev == LPFC_SLI_REV4) 1793 memcpy(new_ndlp->active_rrqs_xri_bitmap, 1794 ndlp->active_rrqs_xri_bitmap, 1795 phba->cfg_rrq_xri_bitmap_sz); 1796 1797 /* Lock both ndlps */ 1798 spin_lock_irq(&ndlp->lock); 1799 spin_lock_irq(&new_ndlp->lock); 1800 keep_new_nlp_flag = new_ndlp->nlp_flag; 1801 keep_nlp_flag = ndlp->nlp_flag; 1802 new_ndlp->nlp_flag = ndlp->nlp_flag; 1803 1804 /* if new_ndlp had NLP_UNREG_INP set, keep it */ 1805 if (test_bit(NLP_UNREG_INP, &keep_new_nlp_flag)) 1806 set_bit(NLP_UNREG_INP, &new_ndlp->nlp_flag); 1807 else 1808 clear_bit(NLP_UNREG_INP, &new_ndlp->nlp_flag); 1809 1810 /* if new_ndlp had NLP_RPI_REGISTERED set, keep it */ 1811 if (test_bit(NLP_RPI_REGISTERED, &keep_new_nlp_flag)) 1812 set_bit(NLP_RPI_REGISTERED, &new_ndlp->nlp_flag); 1813 else 1814 clear_bit(NLP_RPI_REGISTERED, &new_ndlp->nlp_flag); 1815 1816 /* 1817 * Retain the DROPPED flag. This will take care of the init 1818 * refcount when affecting the state change 1819 */ 1820 if (test_bit(NLP_DROPPED, &keep_new_nlp_flag)) 1821 set_bit(NLP_DROPPED, &new_ndlp->nlp_flag); 1822 else 1823 clear_bit(NLP_DROPPED, &new_ndlp->nlp_flag); 1824 1825 ndlp->nlp_flag = keep_new_nlp_flag; 1826 1827 /* if ndlp had NLP_UNREG_INP set, keep it */ 1828 if (test_bit(NLP_UNREG_INP, &keep_nlp_flag)) 1829 set_bit(NLP_UNREG_INP, &ndlp->nlp_flag); 1830 else 1831 clear_bit(NLP_UNREG_INP, &ndlp->nlp_flag); 1832 1833 /* if ndlp had NLP_RPI_REGISTERED set, keep it */ 1834 if (test_bit(NLP_RPI_REGISTERED, &keep_nlp_flag)) 1835 set_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag); 1836 else 1837 clear_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag); 1838 1839 /* 1840 * Retain the DROPPED flag. This will take care of the init 1841 * refcount when affecting the state change 1842 */ 1843 if (test_bit(NLP_DROPPED, &keep_nlp_flag)) 1844 set_bit(NLP_DROPPED, &ndlp->nlp_flag); 1845 else 1846 clear_bit(NLP_DROPPED, &ndlp->nlp_flag); 1847 1848 spin_unlock_irq(&new_ndlp->lock); 1849 spin_unlock_irq(&ndlp->lock); 1850 1851 /* Set nlp_states accordingly */ 1852 keep_nlp_state = new_ndlp->nlp_state; 1853 lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); 1854 1855 /* interchange the nvme remoteport structs */ 1856 keep_nrport = new_ndlp->nrport; 1857 new_ndlp->nrport = ndlp->nrport; 1858 1859 /* Move this back to NPR state */ 1860 if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) { 1861 /* The ndlp doesn't have a portname yet, but does have an 1862 * NPort ID. The new_ndlp portname matches the Rport's 1863 * portname. Reinstantiate the new_ndlp and reset the ndlp. 1864 */ 1865 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1866 "3179 PLOGI confirm NEW: %x %x\n", 1867 new_ndlp->nlp_DID, keepDID); 1868 1869 /* Two ndlps cannot have the same did on the nodelist. 1870 * The KeepDID and keep_nlp_fc4_type need to be swapped 1871 * because ndlp is inflight with no WWPN. 1872 */ 1873 ndlp->nlp_DID = keepDID; 1874 ndlp->nlp_fc4_type = keep_nlp_fc4_type; 1875 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state); 1876 if (phba->sli_rev == LPFC_SLI_REV4 && 1877 active_rrqs_xri_bitmap) 1878 memcpy(ndlp->active_rrqs_xri_bitmap, 1879 active_rrqs_xri_bitmap, 1880 phba->cfg_rrq_xri_bitmap_sz); 1881 1882 } else { 1883 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1884 "3180 PLOGI confirm SWAP: %x %x\n", 1885 new_ndlp->nlp_DID, keepDID); 1886 1887 lpfc_unreg_rpi(vport, ndlp); 1888 1889 /* The ndlp and new_ndlp both have WWPNs but are swapping 1890 * NPort Ids and attributes. 1891 */ 1892 ndlp->nlp_DID = keepDID; 1893 ndlp->nlp_fc4_type = keep_nlp_fc4_type; 1894 1895 if (phba->sli_rev == LPFC_SLI_REV4 && 1896 active_rrqs_xri_bitmap) 1897 memcpy(ndlp->active_rrqs_xri_bitmap, 1898 active_rrqs_xri_bitmap, 1899 phba->cfg_rrq_xri_bitmap_sz); 1900 1901 /* Since we are switching over to the new_ndlp, 1902 * reset the old ndlp state 1903 */ 1904 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || 1905 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) 1906 keep_nlp_state = NLP_STE_NPR_NODE; 1907 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state); 1908 ndlp->nrport = keep_nrport; 1909 } 1910 1911 /* 1912 * If ndlp is not associated with any rport we can drop it here else 1913 * let dev_loss_tmo_callbk trigger DEVICE_RM event 1914 */ 1915 if (!ndlp->rport && (ndlp->nlp_state == NLP_STE_NPR_NODE)) 1916 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 1917 1918 if (phba->sli_rev == LPFC_SLI_REV4 && 1919 active_rrqs_xri_bitmap) 1920 mempool_free(active_rrqs_xri_bitmap, 1921 phba->active_rrq_pool); 1922 1923 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE, 1924 "3173 PLOGI confirm exit: new_ndlp x%x x%lx x%x\n", 1925 new_ndlp->nlp_DID, new_ndlp->nlp_flag, 1926 new_ndlp->nlp_fc4_type); 1927 1928 return new_ndlp; 1929} 1930 1931/** 1932 * lpfc_end_rscn - Check and handle more rscn for a vport 1933 * @vport: pointer to a host virtual N_Port data structure. 1934 * 1935 * This routine checks whether more Registration State Change 1936 * Notifications (RSCNs) came in while the discovery state machine was in 1937 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be 1938 * invoked to handle the additional RSCNs for the @vport. Otherwise, the 1939 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of 1940 * handling the RSCNs. 1941 **/ 1942void 1943lpfc_end_rscn(struct lpfc_vport *vport) 1944{ 1945 1946 if (test_bit(FC_RSCN_MODE, &vport->fc_flag)) { 1947 /* 1948 * Check to see if more RSCNs came in while we were 1949 * processing this one. 1950 */ 1951 if (vport->fc_rscn_id_cnt || 1952 test_bit(FC_RSCN_DISCOVERY, &vport->fc_flag)) 1953 lpfc_els_handle_rscn(vport); 1954 else 1955 clear_bit(FC_RSCN_MODE, &vport->fc_flag); 1956 } 1957} 1958 1959/** 1960 * lpfc_cmpl_els_rrq - Completion handled for els RRQs. 1961 * @phba: pointer to lpfc hba data structure. 1962 * @cmdiocb: pointer to lpfc command iocb data structure. 1963 * @rspiocb: pointer to lpfc response iocb data structure. 1964 * 1965 * This routine will call the clear rrq function to free the rrq and 1966 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not 1967 * exist then the clear_rrq is still called because the rrq needs to 1968 * be freed. 1969 **/ 1970 1971static void 1972lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 1973 struct lpfc_iocbq *rspiocb) 1974{ 1975 struct lpfc_vport *vport = cmdiocb->vport; 1976 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 1977 struct lpfc_node_rrq *rrq; 1978 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 1979 u32 ulp_word4 = get_job_word4(phba, rspiocb); 1980 1981 /* we pass cmdiocb to state machine which needs rspiocb as well */ 1982 rrq = cmdiocb->context_un.rrq; 1983 cmdiocb->rsp_iocb = rspiocb; 1984 1985 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1986 "RRQ cmpl: status:x%x/x%x did:x%x", 1987 ulp_status, ulp_word4, 1988 get_job_els_rsp64_did(phba, cmdiocb)); 1989 1990 1991 /* rrq completes to NPort <nlp_DID> */ 1992 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1993 "2880 RRQ completes to DID x%x " 1994 "Data: x%x x%x x%x x%x x%x\n", 1995 ndlp->nlp_DID, ulp_status, ulp_word4, 1996 get_wqe_tmo(cmdiocb), rrq->xritag, rrq->rxid); 1997 1998 if (ulp_status) { 1999 /* Check for retry */ 2000 /* Warn RRQ status Don't print the vport to vport rjts */ 2001 if (ulp_status != IOSTAT_LS_RJT || 2002 (((ulp_word4) >> 16 != LSRJT_INVALID_CMD) && 2003 ((ulp_word4) >> 16 != LSRJT_UNABLE_TPC)) || 2004 (phba)->pport->cfg_log_verbose & LOG_ELS) 2005 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 2006 "2881 RRQ DID:%06X Status:" 2007 "x%x/x%x\n", 2008 ndlp->nlp_DID, ulp_status, 2009 ulp_word4); 2010 } 2011 2012 lpfc_clr_rrq_active(phba, rrq->xritag, rrq); 2013 lpfc_els_free_iocb(phba, cmdiocb); 2014 lpfc_nlp_put(ndlp); 2015 return; 2016} 2017/** 2018 * lpfc_cmpl_els_plogi - Completion callback function for plogi 2019 * @phba: pointer to lpfc hba data structure. 2020 * @cmdiocb: pointer to lpfc command iocb data structure. 2021 * @rspiocb: pointer to lpfc response iocb data structure. 2022 * 2023 * This routine is the completion callback function for issuing the Port 2024 * Login (PLOGI) command. For PLOGI completion, there must be an active 2025 * ndlp on the vport node list that matches the remote node ID from the 2026 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply 2027 * ignored and command IOCB released. The PLOGI response IOCB status is 2028 * checked for error conditions. If there is error status reported, PLOGI 2029 * retry shall be attempted by invoking the lpfc_els_retry() routine. 2030 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on 2031 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine 2032 * (DSM) is set for this PLOGI completion. Finally, it checks whether 2033 * there are additional N_Port nodes with the vport that need to perform 2034 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition 2035 * PLOGIs. 2036 **/ 2037static void 2038lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2039 struct lpfc_iocbq *rspiocb) 2040{ 2041 struct lpfc_vport *vport = cmdiocb->vport; 2042 IOCB_t *irsp; 2043 struct lpfc_nodelist *ndlp, *free_ndlp; 2044 struct lpfc_dmabuf *prsp; 2045 bool disc; 2046 struct serv_parm *sp = NULL; 2047 u32 ulp_status, ulp_word4, did, iotag; 2048 bool release_node = false; 2049 2050 /* we pass cmdiocb to state machine which needs rspiocb as well */ 2051 cmdiocb->rsp_iocb = rspiocb; 2052 2053 ulp_status = get_job_ulpstatus(phba, rspiocb); 2054 ulp_word4 = get_job_word4(phba, rspiocb); 2055 did = get_job_els_rsp64_did(phba, cmdiocb); 2056 2057 if (phba->sli_rev == LPFC_SLI_REV4) { 2058 iotag = get_wqe_reqtag(cmdiocb); 2059 } else { 2060 irsp = &rspiocb->iocb; 2061 iotag = irsp->ulpIoTag; 2062 } 2063 2064 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2065 "PLOGI cmpl: status:x%x/x%x did:x%x", 2066 ulp_status, ulp_word4, did); 2067 2068 ndlp = lpfc_findnode_did(vport, did); 2069 if (!ndlp) { 2070 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 2071 "0136 PLOGI completes to NPort x%x " 2072 "with no ndlp. Data: x%x x%x x%x\n", 2073 did, ulp_status, ulp_word4, iotag); 2074 goto out_freeiocb; 2075 } 2076 2077 /* Since ndlp can be freed in the disc state machine, note if this node 2078 * is being used during discovery. 2079 */ 2080 disc = test_and_clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2081 2082 /* PLOGI completes to NPort <nlp_DID> */ 2083 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 2084 "0102 PLOGI completes to NPort x%06x " 2085 "IoTag x%x Data: x%x x%x x%x x%x x%x\n", 2086 ndlp->nlp_DID, iotag, 2087 ndlp->nlp_fc4_type, 2088 ulp_status, ulp_word4, 2089 disc, vport->num_disc_nodes); 2090 2091 /* Check to see if link went down during discovery */ 2092 if (lpfc_els_chk_latt(vport)) { 2093 set_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2094 goto out; 2095 } 2096 2097 if (ulp_status) { 2098 /* Check for retry */ 2099 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { 2100 /* ELS command is being retried */ 2101 if (disc) 2102 set_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2103 goto out; 2104 } 2105 /* Warn PLOGI status Don't print the vport to vport rjts */ 2106 if (ulp_status != IOSTAT_LS_RJT || 2107 (((ulp_word4) >> 16 != LSRJT_INVALID_CMD) && 2108 ((ulp_word4) >> 16 != LSRJT_UNABLE_TPC)) || 2109 (phba)->pport->cfg_log_verbose & LOG_ELS) 2110 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 2111 "2753 PLOGI DID:%06X " 2112 "Status:x%x/x%x\n", 2113 ndlp->nlp_DID, ulp_status, 2114 ulp_word4); 2115 2116 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ 2117 if (!lpfc_error_lost_link(vport, ulp_status, ulp_word4)) 2118 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2119 NLP_EVT_CMPL_PLOGI); 2120 2121 /* If a PLOGI collision occurred, the node needs to continue 2122 * with the reglogin process. 2123 */ 2124 spin_lock_irq(&ndlp->lock); 2125 if ((test_bit(NLP_ACC_REGLOGIN, &ndlp->nlp_flag) || 2126 test_bit(NLP_RCV_PLOGI, &ndlp->nlp_flag)) && 2127 ndlp->nlp_state == NLP_STE_REG_LOGIN_ISSUE) { 2128 spin_unlock_irq(&ndlp->lock); 2129 goto out; 2130 } 2131 2132 /* No PLOGI collision and the node is not registered with the 2133 * scsi or nvme transport. It is no longer an active node. Just 2134 * start the device remove process. 2135 */ 2136 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { 2137 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2138 if (!test_bit(NLP_IN_DEV_LOSS, &ndlp->nlp_flag)) 2139 release_node = true; 2140 } 2141 spin_unlock_irq(&ndlp->lock); 2142 2143 if (release_node) 2144 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2145 NLP_EVT_DEVICE_RM); 2146 } else { 2147 /* Good status, call state machine */ 2148 prsp = list_get_first(&cmdiocb->cmd_dmabuf->list, 2149 struct lpfc_dmabuf, list); 2150 if (!prsp) 2151 goto out; 2152 if (!lpfc_is_els_acc_rsp(prsp)) 2153 goto out; 2154 ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp); 2155 2156 sp = (struct serv_parm *)((u8 *)prsp->virt + 2157 sizeof(u32)); 2158 2159 ndlp->vmid_support = 0; 2160 if ((phba->cfg_vmid_app_header && sp->cmn.app_hdr_support) || 2161 (phba->cfg_vmid_priority_tagging && 2162 sp->cmn.priority_tagging)) { 2163 lpfc_printf_log(phba, KERN_DEBUG, LOG_ELS, 2164 "4018 app_hdr_support %d tagging %d DID x%x\n", 2165 sp->cmn.app_hdr_support, 2166 sp->cmn.priority_tagging, 2167 ndlp->nlp_DID); 2168 /* if the dest port supports VMID, mark it in ndlp */ 2169 ndlp->vmid_support = 1; 2170 } 2171 2172 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2173 NLP_EVT_CMPL_PLOGI); 2174 } 2175 2176 if (disc && vport->num_disc_nodes) { 2177 /* Check to see if there are more PLOGIs to be sent */ 2178 lpfc_more_plogi(vport); 2179 2180 if (vport->num_disc_nodes == 0) { 2181 clear_bit(FC_NDISC_ACTIVE, &vport->fc_flag); 2182 2183 lpfc_can_disctmo(vport); 2184 lpfc_end_rscn(vport); 2185 } 2186 } 2187 2188out: 2189 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 2190 "PLOGI Cmpl PUT: did:x%x refcnt %d", 2191 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 2192 2193out_freeiocb: 2194 /* Release the reference on the original I/O request. */ 2195 free_ndlp = cmdiocb->ndlp; 2196 2197 lpfc_els_free_iocb(phba, cmdiocb); 2198 lpfc_nlp_put(free_ndlp); 2199 return; 2200} 2201 2202/** 2203 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport 2204 * @vport: pointer to a host virtual N_Port data structure. 2205 * @did: destination port identifier. 2206 * @retry: number of retries to the command IOCB. 2207 * 2208 * This routine issues a Port Login (PLOGI) command to a remote N_Port 2209 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port, 2210 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list. 2211 * This routine constructs the proper fields of the PLOGI IOCB and invokes 2212 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command. 2213 * 2214 * Note that the ndlp reference count will be incremented by 1 for holding 2215 * the ndlp and the reference to ndlp will be stored into the ndlp field 2216 * of the IOCB for the completion callback function to the PLOGI ELS command. 2217 * 2218 * Return code 2219 * 0 - Successfully issued a plogi for @vport 2220 * 1 - failed to issue a plogi for @vport 2221 **/ 2222int 2223lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) 2224{ 2225 struct lpfc_hba *phba = vport->phba; 2226 struct serv_parm *sp; 2227 struct lpfc_nodelist *ndlp; 2228 struct lpfc_iocbq *elsiocb; 2229 uint8_t *pcmd; 2230 uint16_t cmdsize; 2231 int ret; 2232 2233 ndlp = lpfc_findnode_did(vport, did); 2234 if (!ndlp) 2235 return 1; 2236 2237 /* Defer the processing of the issue PLOGI until after the 2238 * outstanding UNREG_RPI mbox command completes, unless we 2239 * are going offline. This logic does not apply for Fabric DIDs 2240 */ 2241 if ((test_bit(NLP_IGNR_REG_CMPL, &ndlp->nlp_flag) || 2242 test_bit(NLP_UNREG_INP, &ndlp->nlp_flag)) && 2243 ((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 2244 !test_bit(FC_OFFLINE_MODE, &vport->fc_flag)) { 2245 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2246 "4110 Issue PLOGI x%x deferred " 2247 "on NPort x%x rpi x%x flg x%lx Data:" 2248 " x%px\n", 2249 ndlp->nlp_defer_did, ndlp->nlp_DID, 2250 ndlp->nlp_rpi, ndlp->nlp_flag, ndlp); 2251 2252 /* We can only defer 1st PLOGI */ 2253 if (ndlp->nlp_defer_did == NLP_EVT_NOTHING_PENDING) 2254 ndlp->nlp_defer_did = did; 2255 return 0; 2256 } 2257 2258 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); 2259 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, 2260 ELS_CMD_PLOGI); 2261 if (!elsiocb) 2262 return 1; 2263 2264 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 2265 2266 /* For PLOGI request, remainder of payload is service parameters */ 2267 *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; 2268 pcmd += sizeof(uint32_t); 2269 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); 2270 sp = (struct serv_parm *) pcmd; 2271 2272 /* 2273 * If we are a N-port connected to a Fabric, fix-up paramm's so logins 2274 * to device on remote loops work. 2275 */ 2276 if (test_bit(FC_FABRIC, &vport->fc_flag) && 2277 !test_bit(FC_PUBLIC_LOOP, &vport->fc_flag)) 2278 sp->cmn.altBbCredit = 1; 2279 2280 if (sp->cmn.fcphLow < FC_PH_4_3) 2281 sp->cmn.fcphLow = FC_PH_4_3; 2282 2283 if (sp->cmn.fcphHigh < FC_PH3) 2284 sp->cmn.fcphHigh = FC_PH3; 2285 2286 sp->cmn.valid_vendor_ver_level = 0; 2287 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion)); 2288 if (!test_bit(FC_PT2PT, &vport->fc_flag)) 2289 sp->cmn.bbRcvSizeMsb &= 0xF; 2290 2291 /* Check if the destination port supports VMID */ 2292 ndlp->vmid_support = 0; 2293 if (vport->vmid_priority_tagging) 2294 sp->cmn.priority_tagging = 1; 2295 else if (phba->cfg_vmid_app_header && 2296 bf_get(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags)) 2297 sp->cmn.app_hdr_support = 1; 2298 2299 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2300 "Issue PLOGI: did:x%x", 2301 did, 0, 0); 2302 2303 /* If our firmware supports this feature, convey that 2304 * information to the target using the vendor specific field. 2305 */ 2306 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) { 2307 sp->cmn.valid_vendor_ver_level = 1; 2308 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID); 2309 sp->un.vv.flags = cpu_to_be32(LPFC_VV_SUPPRESS_RSP); 2310 } 2311 2312 phba->fc_stat.elsXmitPLOGI++; 2313 elsiocb->cmd_cmpl = lpfc_cmpl_els_plogi; 2314 2315 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2316 "Issue PLOGI: did:x%x refcnt %d", 2317 did, kref_read(&ndlp->kref), 0); 2318 elsiocb->ndlp = lpfc_nlp_get(ndlp); 2319 if (!elsiocb->ndlp) { 2320 lpfc_els_free_iocb(phba, elsiocb); 2321 return 1; 2322 } 2323 2324 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 2325 if (ret) { 2326 lpfc_els_free_iocb(phba, elsiocb); 2327 lpfc_nlp_put(ndlp); 2328 return 1; 2329 } 2330 2331 return 0; 2332} 2333 2334/** 2335 * lpfc_cmpl_els_prli - Completion callback function for prli 2336 * @phba: pointer to lpfc hba data structure. 2337 * @cmdiocb: pointer to lpfc command iocb data structure. 2338 * @rspiocb: pointer to lpfc response iocb data structure. 2339 * 2340 * This routine is the completion callback function for a Process Login 2341 * (PRLI) ELS command. The PRLI response IOCB status is checked for error 2342 * status. If there is error status reported, PRLI retry shall be attempted 2343 * by invoking the lpfc_els_retry() routine. Otherwise, the state 2344 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this 2345 * ndlp to mark the PRLI completion. 2346 **/ 2347static void 2348lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2349 struct lpfc_iocbq *rspiocb) 2350{ 2351 struct lpfc_vport *vport = cmdiocb->vport; 2352 struct lpfc_nodelist *ndlp; 2353 char *mode; 2354 u32 ulp_status; 2355 u32 ulp_word4; 2356 bool release_node = false; 2357 2358 /* we pass cmdiocb to state machine which needs rspiocb as well */ 2359 cmdiocb->rsp_iocb = rspiocb; 2360 2361 ndlp = cmdiocb->ndlp; 2362 2363 ulp_status = get_job_ulpstatus(phba, rspiocb); 2364 ulp_word4 = get_job_word4(phba, rspiocb); 2365 2366 clear_bit(NLP_PRLI_SND, &ndlp->nlp_flag); 2367 2368 /* Driver supports multiple FC4 types. Counters matter. */ 2369 spin_lock_irq(&ndlp->lock); 2370 vport->fc_prli_sent--; 2371 ndlp->fc4_prli_sent--; 2372 spin_unlock_irq(&ndlp->lock); 2373 2374 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2375 "PRLI cmpl: status:x%x/x%x did:x%x", 2376 ulp_status, ulp_word4, 2377 ndlp->nlp_DID); 2378 2379 /* PRLI completes to NPort <nlp_DID> */ 2380 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 2381 "0103 PRLI completes to NPort x%06x " 2382 "Data: x%x x%x x%x x%x x%x\n", 2383 ndlp->nlp_DID, ulp_status, ulp_word4, 2384 vport->num_disc_nodes, ndlp->fc4_prli_sent, 2385 ndlp->fc4_xpt_flags); 2386 2387 /* Check to see if link went down during discovery */ 2388 if (lpfc_els_chk_latt(vport)) 2389 goto out; 2390 2391 if (ulp_status) { 2392 /* Check for retry */ 2393 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { 2394 /* ELS command is being retried */ 2395 goto out; 2396 } 2397 2398 /* If we don't send GFT_ID to Fabric, a PRLI error 2399 * could be expected. 2400 */ 2401 if (test_bit(FC_FABRIC, &vport->fc_flag) || 2402 vport->cfg_enable_fc4_type != LPFC_ENABLE_BOTH) 2403 mode = KERN_WARNING; 2404 else 2405 mode = KERN_INFO; 2406 2407 /* Warn PRLI status */ 2408 lpfc_vlog_msg(vport, mode, LOG_ELS, 2409 "2754 PRLI DID:%06X Status:x%x/x%x, " 2410 "data: x%x x%x x%lx\n", 2411 ndlp->nlp_DID, ulp_status, 2412 ulp_word4, ndlp->nlp_state, 2413 ndlp->fc4_prli_sent, ndlp->nlp_flag); 2414 2415 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ 2416 if (!lpfc_error_lost_link(vport, ulp_status, ulp_word4)) 2417 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2418 NLP_EVT_CMPL_PRLI); 2419 2420 /* The following condition catches an inflight transition 2421 * mismatch typically caused by an RSCN. Skip any 2422 * processing to allow recovery. 2423 */ 2424 if ((ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE && 2425 ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE) || 2426 (ndlp->nlp_state == NLP_STE_NPR_NODE && 2427 test_bit(NLP_DELAY_TMO, &ndlp->nlp_flag))) { 2428 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 2429 "2784 PRLI cmpl: Allow Node recovery " 2430 "DID x%06x nstate x%x nflag x%lx\n", 2431 ndlp->nlp_DID, ndlp->nlp_state, 2432 ndlp->nlp_flag); 2433 goto out; 2434 } 2435 2436 /* 2437 * For P2P topology, retain the node so that PLOGI can be 2438 * attempted on it again. 2439 */ 2440 if (test_bit(FC_PT2PT, &vport->fc_flag)) 2441 goto out; 2442 2443 /* As long as this node is not registered with the SCSI 2444 * or NVMe transport and no other PRLIs are outstanding, 2445 * it is no longer an active node. Otherwise devloss 2446 * handles the final cleanup. 2447 */ 2448 spin_lock_irq(&ndlp->lock); 2449 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) && 2450 !ndlp->fc4_prli_sent) { 2451 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2452 if (!test_bit(NLP_IN_DEV_LOSS, &ndlp->nlp_flag)) 2453 release_node = true; 2454 } 2455 spin_unlock_irq(&ndlp->lock); 2456 2457 if (release_node) 2458 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2459 NLP_EVT_DEVICE_RM); 2460 } else { 2461 /* Good status, call state machine. However, if another 2462 * PRLI is outstanding, don't call the state machine 2463 * because final disposition to Mapped or Unmapped is 2464 * completed there. 2465 */ 2466 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2467 NLP_EVT_CMPL_PRLI); 2468 } 2469 2470out: 2471 lpfc_els_free_iocb(phba, cmdiocb); 2472 lpfc_nlp_put(ndlp); 2473 return; 2474} 2475 2476/** 2477 * lpfc_issue_els_prli - Issue a prli iocb command for a vport 2478 * @vport: pointer to a host virtual N_Port data structure. 2479 * @ndlp: pointer to a node-list data structure. 2480 * @retry: number of retries to the command IOCB. 2481 * 2482 * This routine issues a Process Login (PRLI) ELS command for the 2483 * @vport. The PRLI service parameters are set up in the payload of the 2484 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine 2485 * is put to the IOCB completion callback func field before invoking the 2486 * routine lpfc_sli_issue_iocb() to send out PRLI command. 2487 * 2488 * Note that the ndlp reference count will be incremented by 1 for holding the 2489 * ndlp and the reference to ndlp will be stored into the ndlp field of 2490 * the IOCB for the completion callback function to the PRLI ELS command. 2491 * 2492 * Return code 2493 * 0 - successfully issued prli iocb command for @vport 2494 * 1 - failed to issue prli iocb command for @vport 2495 **/ 2496int 2497lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2498 uint8_t retry) 2499{ 2500 int rc = 0; 2501 struct lpfc_hba *phba = vport->phba; 2502 PRLI *npr; 2503 struct lpfc_nvme_prli *npr_nvme; 2504 struct lpfc_iocbq *elsiocb; 2505 uint8_t *pcmd; 2506 uint16_t cmdsize; 2507 u32 local_nlp_type, elscmd; 2508 2509 /* 2510 * If we are in RSCN mode, the FC4 types supported from a 2511 * previous GFT_ID command may not be accurate. So, if we 2512 * are a NVME Initiator, always look for the possibility of 2513 * the remote NPort beng a NVME Target. 2514 */ 2515 if (phba->sli_rev == LPFC_SLI_REV4 && 2516 test_bit(FC_RSCN_MODE, &vport->fc_flag) && 2517 vport->nvmei_support) 2518 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 2519 local_nlp_type = ndlp->nlp_fc4_type; 2520 2521 /* This routine will issue 1 or 2 PRLIs, so zero all the ndlp 2522 * fields here before any of them can complete. 2523 */ 2524 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 2525 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 2526 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 2527 clear_bit(NLP_FIRSTBURST, &ndlp->nlp_flag); 2528 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2529 ndlp->nvme_fb_size = 0; 2530 2531 send_next_prli: 2532 if (local_nlp_type & NLP_FC4_FCP) { 2533 /* Payload is 4 + 16 = 20 x14 bytes. */ 2534 cmdsize = (sizeof(uint32_t) + sizeof(PRLI)); 2535 elscmd = ELS_CMD_PRLI; 2536 } else if (local_nlp_type & NLP_FC4_NVME) { 2537 /* Payload is 4 + 20 = 24 x18 bytes. */ 2538 cmdsize = (sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli)); 2539 elscmd = ELS_CMD_NVMEPRLI; 2540 } else { 2541 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2542 "3083 Unknown FC_TYPE x%x ndlp x%06x\n", 2543 ndlp->nlp_fc4_type, ndlp->nlp_DID); 2544 return 1; 2545 } 2546 2547 /* SLI3 ports don't support NVME. If this rport is a strict NVME 2548 * FC4 type, implicitly LOGO. 2549 */ 2550 if (phba->sli_rev == LPFC_SLI_REV3 && 2551 ndlp->nlp_fc4_type == NLP_FC4_NVME) { 2552 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2553 "3088 Rport fc4 type 0x%x not supported by SLI3 adapter\n", 2554 ndlp->nlp_type); 2555 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 2556 return 1; 2557 } 2558 2559 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 2560 ndlp->nlp_DID, elscmd); 2561 if (!elsiocb) 2562 return 1; 2563 2564 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 2565 2566 /* For PRLI request, remainder of payload is service parameters */ 2567 memset(pcmd, 0, cmdsize); 2568 2569 if (local_nlp_type & NLP_FC4_FCP) { 2570 /* Remainder of payload is FCP PRLI parameter page. 2571 * Note: this data structure is defined as 2572 * BE/LE in the structure definition so no 2573 * byte swap call is made. 2574 */ 2575 *((uint32_t *)(pcmd)) = ELS_CMD_PRLI; 2576 pcmd += sizeof(uint32_t); 2577 npr = (PRLI *)pcmd; 2578 2579 /* 2580 * If our firmware version is 3.20 or later, 2581 * set the following bits for FC-TAPE support. 2582 */ 2583 if (phba->vpd.rev.feaLevelHigh >= 0x02) { 2584 npr->ConfmComplAllowed = 1; 2585 npr->Retry = 1; 2586 npr->TaskRetryIdReq = 1; 2587 } 2588 npr->estabImagePair = 1; 2589 npr->readXferRdyDis = 1; 2590 if (vport->cfg_first_burst_size) 2591 npr->writeXferRdyDis = 1; 2592 2593 /* For FCP support */ 2594 npr->prliType = PRLI_FCP_TYPE; 2595 npr->initiatorFunc = 1; 2596 elsiocb->cmd_flag |= LPFC_PRLI_FCP_REQ; 2597 2598 /* Remove FCP type - processed. */ 2599 local_nlp_type &= ~NLP_FC4_FCP; 2600 } else if (local_nlp_type & NLP_FC4_NVME) { 2601 /* Remainder of payload is NVME PRLI parameter page. 2602 * This data structure is the newer definition that 2603 * uses bf macros so a byte swap is required. 2604 */ 2605 *((uint32_t *)(pcmd)) = ELS_CMD_NVMEPRLI; 2606 pcmd += sizeof(uint32_t); 2607 npr_nvme = (struct lpfc_nvme_prli *)pcmd; 2608 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE); 2609 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */ 2610 if (phba->nsler) { 2611 bf_set(prli_nsler, npr_nvme, 1); 2612 bf_set(prli_conf, npr_nvme, 1); 2613 } 2614 2615 /* Only initiators request first burst. */ 2616 if ((phba->cfg_nvme_enable_fb) && 2617 !phba->nvmet_support) 2618 bf_set(prli_fba, npr_nvme, 1); 2619 2620 if (phba->nvmet_support) { 2621 bf_set(prli_tgt, npr_nvme, 1); 2622 bf_set(prli_disc, npr_nvme, 1); 2623 } else { 2624 bf_set(prli_init, npr_nvme, 1); 2625 bf_set(prli_conf, npr_nvme, 1); 2626 } 2627 2628 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1); 2629 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4); 2630 elsiocb->cmd_flag |= LPFC_PRLI_NVME_REQ; 2631 2632 /* Remove NVME type - processed. */ 2633 local_nlp_type &= ~NLP_FC4_NVME; 2634 } 2635 2636 phba->fc_stat.elsXmitPRLI++; 2637 elsiocb->cmd_cmpl = lpfc_cmpl_els_prli; 2638 2639 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2640 "Issue PRLI: did:x%x refcnt %d", 2641 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 2642 elsiocb->ndlp = lpfc_nlp_get(ndlp); 2643 if (!elsiocb->ndlp) { 2644 lpfc_els_free_iocb(phba, elsiocb); 2645 return 1; 2646 } 2647 2648 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 2649 if (rc == IOCB_ERROR) { 2650 lpfc_els_free_iocb(phba, elsiocb); 2651 lpfc_nlp_put(ndlp); 2652 return 1; 2653 } 2654 2655 /* The vport counters are used for lpfc_scan_finished, but 2656 * the ndlp is used to track outstanding PRLIs for different 2657 * FC4 types. 2658 */ 2659 set_bit(NLP_PRLI_SND, &ndlp->nlp_flag); 2660 spin_lock_irq(&ndlp->lock); 2661 vport->fc_prli_sent++; 2662 ndlp->fc4_prli_sent++; 2663 spin_unlock_irq(&ndlp->lock); 2664 2665 /* The driver supports 2 FC4 types. Make sure 2666 * a PRLI is issued for all types before exiting. 2667 */ 2668 if (phba->sli_rev == LPFC_SLI_REV4 && 2669 local_nlp_type & (NLP_FC4_FCP | NLP_FC4_NVME)) 2670 goto send_next_prli; 2671 else 2672 return 0; 2673} 2674 2675/** 2676 * lpfc_rscn_disc - Perform rscn discovery for a vport 2677 * @vport: pointer to a host virtual N_Port data structure. 2678 * 2679 * This routine performs Registration State Change Notification (RSCN) 2680 * discovery for a @vport. If the @vport's node port recovery count is not 2681 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all 2682 * the nodes that need recovery. If none of the PLOGI were needed through 2683 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be 2684 * invoked to check and handle possible more RSCN came in during the period 2685 * of processing the current ones. 2686 **/ 2687static void 2688lpfc_rscn_disc(struct lpfc_vport *vport) 2689{ 2690 lpfc_can_disctmo(vport); 2691 2692 /* RSCN discovery */ 2693 /* go thru NPR nodes and issue ELS PLOGIs */ 2694 if (atomic_read(&vport->fc_npr_cnt)) 2695 if (lpfc_els_disc_plogi(vport)) 2696 return; 2697 2698 lpfc_end_rscn(vport); 2699} 2700 2701/** 2702 * lpfc_adisc_done - Complete the adisc phase of discovery 2703 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs. 2704 * 2705 * This function is called when the final ADISC is completed during discovery. 2706 * This function handles clearing link attention or issuing reg_vpi depending 2707 * on whether npiv is enabled. This function also kicks off the PLOGI phase of 2708 * discovery. 2709 * This function is called with no locks held. 2710 **/ 2711static void 2712lpfc_adisc_done(struct lpfc_vport *vport) 2713{ 2714 struct lpfc_hba *phba = vport->phba; 2715 2716 /* 2717 * For NPIV, cmpl_reg_vpi will set port_state to READY, 2718 * and continue discovery. 2719 */ 2720 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 2721 !test_bit(FC_RSCN_MODE, &vport->fc_flag) && 2722 (phba->sli_rev < LPFC_SLI_REV4)) { 2723 2724 /* 2725 * If link is down, clear_la and reg_vpi will be done after 2726 * flogi following a link up event 2727 */ 2728 if (!lpfc_is_link_up(phba)) 2729 return; 2730 2731 /* The ADISCs are complete. Doesn't matter if they 2732 * succeeded or failed because the ADISC completion 2733 * routine guarantees to call the state machine and 2734 * the RPI is either unregistered (failed ADISC response) 2735 * or the RPI is still valid and the node is marked 2736 * mapped for a target. The exchanges should be in the 2737 * correct state. This code is specific to SLI3. 2738 */ 2739 lpfc_issue_clear_la(phba, vport); 2740 lpfc_issue_reg_vpi(phba, vport); 2741 return; 2742 } 2743 /* 2744 * For SLI2, we need to set port_state to READY 2745 * and continue discovery. 2746 */ 2747 if (vport->port_state < LPFC_VPORT_READY) { 2748 /* If we get here, there is nothing to ADISC */ 2749 lpfc_issue_clear_la(phba, vport); 2750 if (!test_bit(FC_ABORT_DISCOVERY, &vport->fc_flag)) { 2751 vport->num_disc_nodes = 0; 2752 /* go thru NPR list, issue ELS PLOGIs */ 2753 if (atomic_read(&vport->fc_npr_cnt)) 2754 lpfc_els_disc_plogi(vport); 2755 if (!vport->num_disc_nodes) { 2756 clear_bit(FC_NDISC_ACTIVE, &vport->fc_flag); 2757 lpfc_can_disctmo(vport); 2758 lpfc_end_rscn(vport); 2759 } 2760 } 2761 vport->port_state = LPFC_VPORT_READY; 2762 } else 2763 lpfc_rscn_disc(vport); 2764} 2765 2766/** 2767 * lpfc_more_adisc - Issue more adisc as needed 2768 * @vport: pointer to a host virtual N_Port data structure. 2769 * 2770 * This routine determines whether there are more ndlps on a @vport 2771 * node list need to have Address Discover (ADISC) issued. If so, it will 2772 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's 2773 * remaining nodes which need to have ADISC sent. 2774 **/ 2775void 2776lpfc_more_adisc(struct lpfc_vport *vport) 2777{ 2778 if (vport->num_disc_nodes) 2779 vport->num_disc_nodes--; 2780 /* Continue discovery with <num_disc_nodes> ADISCs to go */ 2781 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2782 "0210 Continue discovery with %d ADISCs to go " 2783 "Data: x%x x%lx x%x\n", 2784 vport->num_disc_nodes, 2785 atomic_read(&vport->fc_adisc_cnt), 2786 vport->fc_flag, vport->port_state); 2787 /* Check to see if there are more ADISCs to be sent */ 2788 if (test_bit(FC_NLP_MORE, &vport->fc_flag)) { 2789 lpfc_set_disctmo(vport); 2790 /* go thru NPR nodes and issue any remaining ELS ADISCs */ 2791 lpfc_els_disc_adisc(vport); 2792 } 2793 if (!vport->num_disc_nodes) 2794 lpfc_adisc_done(vport); 2795 return; 2796} 2797 2798/** 2799 * lpfc_cmpl_els_adisc - Completion callback function for adisc 2800 * @phba: pointer to lpfc hba data structure. 2801 * @cmdiocb: pointer to lpfc command iocb data structure. 2802 * @rspiocb: pointer to lpfc response iocb data structure. 2803 * 2804 * This routine is the completion function for issuing the Address Discover 2805 * (ADISC) command. It first checks to see whether link went down during 2806 * the discovery process. If so, the node will be marked as node port 2807 * recovery for issuing discover IOCB by the link attention handler and 2808 * exit. Otherwise, the response status is checked. If error was reported 2809 * in the response status, the ADISC command shall be retried by invoking 2810 * the lpfc_els_retry() routine. Otherwise, if no error was reported in 2811 * the response status, the state machine is invoked to set transition 2812 * with respect to NLP_EVT_CMPL_ADISC event. 2813 **/ 2814static void 2815lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2816 struct lpfc_iocbq *rspiocb) 2817{ 2818 struct lpfc_vport *vport = cmdiocb->vport; 2819 IOCB_t *irsp; 2820 struct lpfc_nodelist *ndlp; 2821 bool disc; 2822 u32 ulp_status, ulp_word4, tmo, iotag; 2823 bool release_node = false; 2824 2825 /* we pass cmdiocb to state machine which needs rspiocb as well */ 2826 cmdiocb->rsp_iocb = rspiocb; 2827 2828 ndlp = cmdiocb->ndlp; 2829 2830 ulp_status = get_job_ulpstatus(phba, rspiocb); 2831 ulp_word4 = get_job_word4(phba, rspiocb); 2832 2833 if (phba->sli_rev == LPFC_SLI_REV4) { 2834 tmo = get_wqe_tmo(cmdiocb); 2835 iotag = get_wqe_reqtag(cmdiocb); 2836 } else { 2837 irsp = &rspiocb->iocb; 2838 tmo = irsp->ulpTimeout; 2839 iotag = irsp->ulpIoTag; 2840 } 2841 2842 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2843 "ADISC cmpl: status:x%x/x%x did:x%x", 2844 ulp_status, ulp_word4, 2845 ndlp->nlp_DID); 2846 2847 /* Since ndlp can be freed in the disc state machine, note if this node 2848 * is being used during discovery. 2849 */ 2850 disc = test_and_clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2851 clear_bit(NLP_ADISC_SND, &ndlp->nlp_flag); 2852 /* ADISC completes to NPort <nlp_DID> */ 2853 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 2854 "0104 ADISC completes to NPort x%x " 2855 "IoTag x%x Data: x%x x%x x%x x%x x%x\n", 2856 ndlp->nlp_DID, iotag, 2857 ulp_status, ulp_word4, 2858 tmo, disc, vport->num_disc_nodes); 2859 2860 /* Check to see if link went down during discovery */ 2861 if (lpfc_els_chk_latt(vport)) { 2862 set_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2863 goto out; 2864 } 2865 2866 if (ulp_status) { 2867 /* Check for retry */ 2868 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { 2869 /* ELS command is being retried */ 2870 if (disc) { 2871 set_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2872 lpfc_set_disctmo(vport); 2873 } 2874 goto out; 2875 } 2876 /* Warn ADISC status */ 2877 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 2878 "2755 ADISC DID:%06X Status:x%x/x%x\n", 2879 ndlp->nlp_DID, ulp_status, 2880 ulp_word4); 2881 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2882 NLP_EVT_CMPL_ADISC); 2883 2884 /* As long as this node is not registered with the SCSI or NVMe 2885 * transport, it is no longer an active node. Otherwise 2886 * devloss handles the final cleanup. 2887 */ 2888 spin_lock_irq(&ndlp->lock); 2889 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { 2890 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2891 if (!test_bit(NLP_IN_DEV_LOSS, &ndlp->nlp_flag)) 2892 release_node = true; 2893 } 2894 spin_unlock_irq(&ndlp->lock); 2895 2896 if (release_node) 2897 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2898 NLP_EVT_DEVICE_RM); 2899 } else 2900 /* Good status, call state machine */ 2901 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2902 NLP_EVT_CMPL_ADISC); 2903 2904 /* Check to see if there are more ADISCs to be sent */ 2905 if (disc && vport->num_disc_nodes) 2906 lpfc_more_adisc(vport); 2907out: 2908 lpfc_els_free_iocb(phba, cmdiocb); 2909 lpfc_nlp_put(ndlp); 2910 return; 2911} 2912 2913/** 2914 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport 2915 * @vport: pointer to a virtual N_Port data structure. 2916 * @ndlp: pointer to a node-list data structure. 2917 * @retry: number of retries to the command IOCB. 2918 * 2919 * This routine issues an Address Discover (ADISC) for an @ndlp on a 2920 * @vport. It prepares the payload of the ADISC ELS command, updates the 2921 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine 2922 * to issue the ADISC ELS command. 2923 * 2924 * Note that the ndlp reference count will be incremented by 1 for holding the 2925 * ndlp and the reference to ndlp will be stored into the ndlp field of 2926 * the IOCB for the completion callback function to the ADISC ELS command. 2927 * 2928 * Return code 2929 * 0 - successfully issued adisc 2930 * 1 - failed to issue adisc 2931 **/ 2932int 2933lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2934 uint8_t retry) 2935{ 2936 int rc = 0; 2937 struct lpfc_hba *phba = vport->phba; 2938 ADISC *ap; 2939 struct lpfc_iocbq *elsiocb; 2940 uint8_t *pcmd; 2941 uint16_t cmdsize; 2942 2943 cmdsize = (sizeof(uint32_t) + sizeof(ADISC)); 2944 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 2945 ndlp->nlp_DID, ELS_CMD_ADISC); 2946 if (!elsiocb) 2947 return 1; 2948 2949 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 2950 2951 /* For ADISC request, remainder of payload is service parameters */ 2952 *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; 2953 pcmd += sizeof(uint32_t); 2954 2955 /* Fill in ADISC payload */ 2956 ap = (ADISC *) pcmd; 2957 ap->hardAL_PA = phba->fc_pref_ALPA; 2958 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); 2959 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 2960 ap->DID = be32_to_cpu(vport->fc_myDID); 2961 2962 phba->fc_stat.elsXmitADISC++; 2963 elsiocb->cmd_cmpl = lpfc_cmpl_els_adisc; 2964 set_bit(NLP_ADISC_SND, &ndlp->nlp_flag); 2965 elsiocb->ndlp = lpfc_nlp_get(ndlp); 2966 if (!elsiocb->ndlp) { 2967 lpfc_els_free_iocb(phba, elsiocb); 2968 goto err; 2969 } 2970 2971 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2972 "Issue ADISC: did:x%x refcnt %d", 2973 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 2974 2975 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 2976 if (rc == IOCB_ERROR) { 2977 lpfc_els_free_iocb(phba, elsiocb); 2978 lpfc_nlp_put(ndlp); 2979 goto err; 2980 } 2981 2982 return 0; 2983 2984err: 2985 clear_bit(NLP_ADISC_SND, &ndlp->nlp_flag); 2986 return 1; 2987} 2988 2989/** 2990 * lpfc_cmpl_els_logo - Completion callback function for logo 2991 * @phba: pointer to lpfc hba data structure. 2992 * @cmdiocb: pointer to lpfc command iocb data structure. 2993 * @rspiocb: pointer to lpfc response iocb data structure. 2994 * 2995 * This routine is the completion function for issuing the ELS Logout (LOGO) 2996 * command. If no error status was reported from the LOGO response, the 2997 * state machine of the associated ndlp shall be invoked for transition with 2998 * respect to NLP_EVT_CMPL_LOGO event. 2999 **/ 3000static void 3001lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 3002 struct lpfc_iocbq *rspiocb) 3003{ 3004 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 3005 struct lpfc_vport *vport = ndlp->vport; 3006 IOCB_t *irsp; 3007 uint32_t skip_recovery = 0; 3008 int wake_up_waiter = 0; 3009 u32 ulp_status; 3010 u32 ulp_word4; 3011 u32 tmo, iotag; 3012 3013 /* we pass cmdiocb to state machine which needs rspiocb as well */ 3014 cmdiocb->rsp_iocb = rspiocb; 3015 3016 ulp_status = get_job_ulpstatus(phba, rspiocb); 3017 ulp_word4 = get_job_word4(phba, rspiocb); 3018 3019 if (phba->sli_rev == LPFC_SLI_REV4) { 3020 tmo = get_wqe_tmo(cmdiocb); 3021 iotag = get_wqe_reqtag(cmdiocb); 3022 } else { 3023 irsp = &rspiocb->iocb; 3024 tmo = irsp->ulpTimeout; 3025 iotag = irsp->ulpIoTag; 3026 } 3027 3028 clear_bit(NLP_LOGO_SND, &ndlp->nlp_flag); 3029 if (test_and_clear_bit(NLP_WAIT_FOR_LOGO, &ndlp->save_flags)) 3030 wake_up_waiter = 1; 3031 3032 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3033 "LOGO cmpl: status:x%x/x%x did:x%x", 3034 ulp_status, ulp_word4, 3035 ndlp->nlp_DID); 3036 3037 /* LOGO completes to NPort <nlp_DID> */ 3038 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 3039 "0105 LOGO completes to NPort x%x " 3040 "IoTag x%x refcnt %d nflags x%lx xflags x%x " 3041 "Data: x%x x%x x%x x%x\n", 3042 ndlp->nlp_DID, iotag, 3043 kref_read(&ndlp->kref), ndlp->nlp_flag, 3044 ndlp->fc4_xpt_flags, ulp_status, ulp_word4, 3045 tmo, vport->num_disc_nodes); 3046 3047 if (lpfc_els_chk_latt(vport)) { 3048 skip_recovery = 1; 3049 goto out; 3050 } 3051 3052 /* The LOGO will not be retried on failure. A LOGO was 3053 * issued to the remote rport and a ACC or RJT or no Answer are 3054 * all acceptable. Note the failure and move forward with 3055 * discovery. The PLOGI will retry. 3056 */ 3057 if (ulp_status) { 3058 /* Warn LOGO status */ 3059 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 3060 "2756 LOGO, No Retry DID:%06X " 3061 "Status:x%x/x%x\n", 3062 ndlp->nlp_DID, ulp_status, 3063 ulp_word4); 3064 3065 /* Call NLP_EVT_DEVICE_RM if link is down or LOGO is aborted */ 3066 if (lpfc_error_lost_link(vport, ulp_status, ulp_word4)) 3067 skip_recovery = 1; 3068 } 3069 3070 /* Call state machine. This will unregister the rpi if needed. */ 3071 lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO); 3072 3073out: 3074 /* At this point, the LOGO processing is complete. NOTE: For a 3075 * pt2pt topology, we are assuming the NPortID will only change 3076 * on link up processing. For a LOGO / PLOGI initiated by the 3077 * Initiator, we are assuming the NPortID is not going to change. 3078 */ 3079 3080 if (wake_up_waiter && ndlp->logo_waitq) 3081 wake_up(ndlp->logo_waitq); 3082 /* 3083 * If the node is a target, the handling attempts to recover the port. 3084 * For any other port type, the rpi is unregistered as an implicit 3085 * LOGO. 3086 */ 3087 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) && 3088 skip_recovery == 0) { 3089 lpfc_cancel_retry_delay_tmo(vport, ndlp); 3090 set_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 3091 3092 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 3093 "3187 LOGO completes to NPort x%x: Start " 3094 "Recovery Data: x%x x%x x%x x%x\n", 3095 ndlp->nlp_DID, ulp_status, 3096 ulp_word4, tmo, 3097 vport->num_disc_nodes); 3098 3099 lpfc_els_free_iocb(phba, cmdiocb); 3100 lpfc_nlp_put(ndlp); 3101 3102 lpfc_disc_start(vport); 3103 return; 3104 } 3105 3106 /* Cleanup path for failed REG_RPI handling. If REG_RPI fails, the 3107 * driver sends a LOGO to the rport to cleanup. For fabric and 3108 * initiator ports cleanup the node as long as it the node is not 3109 * register with the transport. 3110 */ 3111 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { 3112 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 3113 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 3114 NLP_EVT_DEVICE_RM); 3115 } 3116 3117 /* Driver is done with the I/O. */ 3118 lpfc_els_free_iocb(phba, cmdiocb); 3119 lpfc_nlp_put(ndlp); 3120} 3121 3122/** 3123 * lpfc_issue_els_logo - Issue a logo to an node on a vport 3124 * @vport: pointer to a virtual N_Port data structure. 3125 * @ndlp: pointer to a node-list data structure. 3126 * @retry: number of retries to the command IOCB. 3127 * 3128 * This routine constructs and issues an ELS Logout (LOGO) iocb command 3129 * to a remote node, referred by an @ndlp on a @vport. It constructs the 3130 * payload of the IOCB, properly sets up the @ndlp state, and invokes the 3131 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command. 3132 * 3133 * Note that the ndlp reference count will be incremented by 1 for holding the 3134 * ndlp and the reference to ndlp will be stored into the ndlp field of 3135 * the IOCB for the completion callback function to the LOGO ELS command. 3136 * 3137 * Callers of this routine are expected to unregister the RPI first 3138 * 3139 * Return code 3140 * 0 - successfully issued logo 3141 * 1 - failed to issue logo 3142 **/ 3143int 3144lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3145 uint8_t retry) 3146{ 3147 struct lpfc_hba *phba = vport->phba; 3148 struct lpfc_iocbq *elsiocb; 3149 uint8_t *pcmd; 3150 uint16_t cmdsize; 3151 int rc; 3152 3153 if (test_bit(NLP_LOGO_SND, &ndlp->nlp_flag)) 3154 return 0; 3155 3156 cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name); 3157 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3158 ndlp->nlp_DID, ELS_CMD_LOGO); 3159 if (!elsiocb) 3160 return 1; 3161 3162 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 3163 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; 3164 pcmd += sizeof(uint32_t); 3165 3166 /* Fill in LOGO payload */ 3167 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); 3168 pcmd += sizeof(uint32_t); 3169 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); 3170 3171 phba->fc_stat.elsXmitLOGO++; 3172 elsiocb->cmd_cmpl = lpfc_cmpl_els_logo; 3173 set_bit(NLP_LOGO_SND, &ndlp->nlp_flag); 3174 clear_bit(NLP_ISSUE_LOGO, &ndlp->nlp_flag); 3175 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3176 if (!elsiocb->ndlp) { 3177 lpfc_els_free_iocb(phba, elsiocb); 3178 goto err; 3179 } 3180 3181 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3182 "Issue LOGO: did:x%x refcnt %d", 3183 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 3184 3185 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3186 if (rc == IOCB_ERROR) { 3187 lpfc_els_free_iocb(phba, elsiocb); 3188 lpfc_nlp_put(ndlp); 3189 goto err; 3190 } 3191 3192 spin_lock_irq(&ndlp->lock); 3193 ndlp->nlp_prev_state = ndlp->nlp_state; 3194 spin_unlock_irq(&ndlp->lock); 3195 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); 3196 return 0; 3197 3198err: 3199 clear_bit(NLP_LOGO_SND, &ndlp->nlp_flag); 3200 return 1; 3201} 3202 3203/** 3204 * lpfc_cmpl_els_cmd - Completion callback function for generic els command 3205 * @phba: pointer to lpfc hba data structure. 3206 * @cmdiocb: pointer to lpfc command iocb data structure. 3207 * @rspiocb: pointer to lpfc response iocb data structure. 3208 * 3209 * This routine is a generic completion callback function for ELS commands. 3210 * Specifically, it is the callback function which does not need to perform 3211 * any command specific operations. It is currently used by the ELS command 3212 * issuing routines for RSCN, lpfc_issue_els_rscn, and the ELS Fibre Channel 3213 * Address Resolution Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). 3214 * Other than certain debug loggings, this callback function simply invokes the 3215 * lpfc_els_chk_latt() routine to check whether link went down during the 3216 * discovery process. 3217 **/ 3218static void 3219lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 3220 struct lpfc_iocbq *rspiocb) 3221{ 3222 struct lpfc_vport *vport = cmdiocb->vport; 3223 struct lpfc_nodelist *free_ndlp; 3224 IOCB_t *irsp; 3225 u32 ulp_status, ulp_word4, tmo, did, iotag; 3226 3227 ulp_status = get_job_ulpstatus(phba, rspiocb); 3228 ulp_word4 = get_job_word4(phba, rspiocb); 3229 did = get_job_els_rsp64_did(phba, cmdiocb); 3230 3231 if (phba->sli_rev == LPFC_SLI_REV4) { 3232 tmo = get_wqe_tmo(cmdiocb); 3233 iotag = get_wqe_reqtag(cmdiocb); 3234 } else { 3235 irsp = &rspiocb->iocb; 3236 tmo = irsp->ulpTimeout; 3237 iotag = irsp->ulpIoTag; 3238 } 3239 3240 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3241 "ELS cmd cmpl: status:x%x/x%x did:x%x", 3242 ulp_status, ulp_word4, did); 3243 3244 /* ELS cmd tag <ulpIoTag> completes */ 3245 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 3246 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n", 3247 iotag, ulp_status, ulp_word4, tmo); 3248 3249 /* Check to see if link went down during discovery */ 3250 lpfc_els_chk_latt(vport); 3251 3252 free_ndlp = cmdiocb->ndlp; 3253 3254 lpfc_els_free_iocb(phba, cmdiocb); 3255 lpfc_nlp_put(free_ndlp); 3256} 3257 3258/** 3259 * lpfc_reg_fab_ctrl_node - RPI register the fabric controller node. 3260 * @vport: pointer to lpfc_vport data structure. 3261 * @fc_ndlp: pointer to the fabric controller (0xfffffd) node. 3262 * 3263 * This routine registers the rpi assigned to the fabric controller 3264 * NPort_ID (0xfffffd) with the port and moves the node to UNMAPPED 3265 * state triggering a registration with the SCSI transport. 3266 * 3267 * This routine is single out because the fabric controller node 3268 * does not receive a PLOGI. This routine is consumed by the 3269 * SCR and RDF ELS commands. Callers are expected to qualify 3270 * with SLI4 first. 3271 **/ 3272static int 3273lpfc_reg_fab_ctrl_node(struct lpfc_vport *vport, struct lpfc_nodelist *fc_ndlp) 3274{ 3275 int rc; 3276 struct lpfc_hba *phba = vport->phba; 3277 struct lpfc_nodelist *ns_ndlp; 3278 LPFC_MBOXQ_t *mbox; 3279 3280 if (test_bit(NLP_RPI_REGISTERED, &fc_ndlp->nlp_flag)) 3281 return 0; 3282 3283 ns_ndlp = lpfc_findnode_did(vport, NameServer_DID); 3284 if (!ns_ndlp) 3285 return -ENODEV; 3286 3287 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3288 "0935 %s: Reg FC RPI x%x on FC DID x%x NSSte: x%x\n", 3289 __func__, fc_ndlp->nlp_rpi, fc_ndlp->nlp_DID, 3290 ns_ndlp->nlp_state); 3291 if (ns_ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 3292 return -ENODEV; 3293 3294 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3295 if (!mbox) { 3296 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3297 "0936 %s: no memory for reg_login " 3298 "Data: x%x x%x x%lx x%x\n", __func__, 3299 fc_ndlp->nlp_DID, fc_ndlp->nlp_state, 3300 fc_ndlp->nlp_flag, fc_ndlp->nlp_rpi); 3301 return -ENOMEM; 3302 } 3303 rc = lpfc_reg_rpi(phba, vport->vpi, fc_ndlp->nlp_DID, 3304 (u8 *)&ns_ndlp->fc_sparam, mbox, fc_ndlp->nlp_rpi); 3305 if (rc) { 3306 rc = -EACCES; 3307 goto out; 3308 } 3309 3310 set_bit(NLP_REG_LOGIN_SEND, &fc_ndlp->nlp_flag); 3311 mbox->mbox_cmpl = lpfc_mbx_cmpl_fc_reg_login; 3312 mbox->ctx_ndlp = lpfc_nlp_get(fc_ndlp); 3313 if (!mbox->ctx_ndlp) { 3314 rc = -ENOMEM; 3315 goto out; 3316 } 3317 3318 mbox->vport = vport; 3319 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3320 if (rc == MBX_NOT_FINISHED) { 3321 rc = -ENODEV; 3322 lpfc_nlp_put(fc_ndlp); 3323 goto out; 3324 } 3325 /* Success path. Exit. */ 3326 lpfc_nlp_set_state(vport, fc_ndlp, 3327 NLP_STE_REG_LOGIN_ISSUE); 3328 return 0; 3329 3330 out: 3331 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 3332 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3333 "0938 %s: failed to format reg_login " 3334 "Data: x%x x%x x%lx x%x\n", __func__, 3335 fc_ndlp->nlp_DID, fc_ndlp->nlp_state, 3336 fc_ndlp->nlp_flag, fc_ndlp->nlp_rpi); 3337 return rc; 3338} 3339 3340/** 3341 * lpfc_cmpl_els_disc_cmd - Completion callback function for Discovery ELS cmd 3342 * @phba: pointer to lpfc hba data structure. 3343 * @cmdiocb: pointer to lpfc command iocb data structure. 3344 * @rspiocb: pointer to lpfc response iocb data structure. 3345 * 3346 * This routine is a generic completion callback function for Discovery ELS cmd. 3347 * Currently used by the ELS command issuing routines for the ELS State Change 3348 * Request (SCR), lpfc_issue_els_scr(), Exchange Diagnostic Capabilities (EDC), 3349 * lpfc_issue_els_edc() and the ELS RDF, lpfc_issue_els_rdf(). 3350 * These commands will be retried once only for ELS timeout errors. 3351 **/ 3352static void 3353lpfc_cmpl_els_disc_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 3354 struct lpfc_iocbq *rspiocb) 3355{ 3356 struct lpfc_vport *vport = cmdiocb->vport; 3357 IOCB_t *irsp; 3358 struct lpfc_els_rdf_rsp *prdf; 3359 struct lpfc_dmabuf *pcmd, *prsp; 3360 u32 *pdata; 3361 u32 cmd; 3362 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 3363 u32 ulp_status, ulp_word4, tmo, did, iotag; 3364 3365 ulp_status = get_job_ulpstatus(phba, rspiocb); 3366 ulp_word4 = get_job_word4(phba, rspiocb); 3367 did = get_job_els_rsp64_did(phba, cmdiocb); 3368 3369 if (phba->sli_rev == LPFC_SLI_REV4) { 3370 tmo = get_wqe_tmo(cmdiocb); 3371 iotag = get_wqe_reqtag(cmdiocb); 3372 } else { 3373 irsp = &rspiocb->iocb; 3374 tmo = irsp->ulpTimeout; 3375 iotag = irsp->ulpIoTag; 3376 } 3377 3378 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3379 "ELS cmd cmpl: status:x%x/x%x did:x%x", 3380 ulp_status, ulp_word4, did); 3381 3382 /* ELS cmd tag <ulpIoTag> completes */ 3383 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 3384 "0217 ELS cmd tag x%x completes Data: x%x x%x x%x x%x\n", 3385 iotag, ulp_status, ulp_word4, tmo, cmdiocb->retry); 3386 3387 pcmd = cmdiocb->cmd_dmabuf; 3388 if (!pcmd) 3389 goto out; 3390 3391 pdata = (u32 *)pcmd->virt; 3392 if (!pdata) 3393 goto out; 3394 cmd = *pdata; 3395 3396 /* Only 1 retry for ELS Timeout only */ 3397 if (ulp_status == IOSTAT_LOCAL_REJECT && 3398 ((ulp_word4 & IOERR_PARAM_MASK) == 3399 IOERR_SEQUENCE_TIMEOUT)) { 3400 cmdiocb->retry++; 3401 if (cmdiocb->retry <= 1) { 3402 switch (cmd) { 3403 case ELS_CMD_SCR: 3404 lpfc_issue_els_scr(vport, cmdiocb->retry); 3405 break; 3406 case ELS_CMD_EDC: 3407 lpfc_issue_els_edc(vport, cmdiocb->retry); 3408 break; 3409 case ELS_CMD_RDF: 3410 lpfc_issue_els_rdf(vport, cmdiocb->retry); 3411 break; 3412 } 3413 goto out; 3414 } 3415 phba->fc_stat.elsRetryExceeded++; 3416 } 3417 if (cmd == ELS_CMD_EDC) { 3418 /* must be called before checking uplStatus and returning */ 3419 lpfc_cmpl_els_edc(phba, cmdiocb, rspiocb); 3420 return; 3421 } 3422 3423 if (ulp_status) { 3424 /* ELS discovery cmd completes with error */ 3425 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS | LOG_CGN_MGMT, 3426 "4203 ELS cmd x%x error: x%x x%X\n", cmd, 3427 ulp_status, ulp_word4); 3428 3429 /* In the case where the ELS cmd completes with an error and 3430 * the node does not have RPI registered, the node is 3431 * outstanding and should put its initial reference. 3432 */ 3433 if ((cmd == ELS_CMD_SCR || cmd == ELS_CMD_RDF) && 3434 !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD) && 3435 !test_and_set_bit(NLP_DROPPED, &ndlp->nlp_flag)) 3436 lpfc_nlp_put(ndlp); 3437 goto out; 3438 } 3439 3440 /* The RDF response doesn't have any impact on the running driver 3441 * but the notification descriptors are dumped here for support. 3442 */ 3443 if (cmd == ELS_CMD_RDF) { 3444 int i; 3445 3446 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 3447 if (!prsp) 3448 goto out; 3449 3450 prdf = (struct lpfc_els_rdf_rsp *)prsp->virt; 3451 if (!prdf) 3452 goto out; 3453 if (!lpfc_is_els_acc_rsp(prsp)) 3454 goto out; 3455 3456 for (i = 0; i < ELS_RDF_REG_TAG_CNT && 3457 i < be32_to_cpu(prdf->reg_d1.reg_desc.count); i++) 3458 lpfc_printf_vlog(vport, KERN_INFO, 3459 LOG_ELS | LOG_CGN_MGMT, 3460 "4677 Fabric RDF Notification Grant " 3461 "Data: 0x%08x Reg: %x %x\n", 3462 be32_to_cpu( 3463 prdf->reg_d1.desc_tags[i]), 3464 phba->cgn_reg_signal, 3465 phba->cgn_reg_fpin); 3466 } 3467 3468out: 3469 /* Check to see if link went down during discovery */ 3470 lpfc_els_chk_latt(vport); 3471 lpfc_els_free_iocb(phba, cmdiocb); 3472 lpfc_nlp_put(ndlp); 3473 return; 3474} 3475 3476/** 3477 * lpfc_issue_els_scr - Issue a scr to an node on a vport 3478 * @vport: pointer to a host virtual N_Port data structure. 3479 * @retry: retry counter for the command IOCB. 3480 * 3481 * This routine issues a State Change Request (SCR) to a fabric node 3482 * on a @vport. The remote node is Fabric Controller (0xfffffd). It 3483 * first search the @vport node list to find the matching ndlp. If no such 3484 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An 3485 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb() 3486 * routine is invoked to send the SCR IOCB. 3487 * 3488 * Note that the ndlp reference count will be incremented by 1 for holding the 3489 * ndlp and the reference to ndlp will be stored into the ndlp field of 3490 * the IOCB for the completion callback function to the SCR ELS command. 3491 * 3492 * Return code 3493 * 0 - Successfully issued scr command 3494 * 1 - Failed to issue scr command 3495 **/ 3496int 3497lpfc_issue_els_scr(struct lpfc_vport *vport, uint8_t retry) 3498{ 3499 int rc = 0; 3500 struct lpfc_hba *phba = vport->phba; 3501 struct lpfc_iocbq *elsiocb; 3502 uint8_t *pcmd; 3503 uint16_t cmdsize; 3504 struct lpfc_nodelist *ndlp; 3505 bool node_created = false; 3506 3507 cmdsize = (sizeof(uint32_t) + sizeof(SCR)); 3508 3509 ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID); 3510 if (!ndlp) { 3511 ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID); 3512 if (!ndlp) 3513 return 1; 3514 lpfc_enqueue_node(vport, ndlp); 3515 node_created = true; 3516 } 3517 3518 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3519 ndlp->nlp_DID, ELS_CMD_SCR); 3520 if (!elsiocb) 3521 goto out_node_created; 3522 3523 if (phba->sli_rev == LPFC_SLI_REV4) { 3524 rc = lpfc_reg_fab_ctrl_node(vport, ndlp); 3525 if (rc) { 3526 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3527 "0937 %s: Failed to reg fc node, rc %d\n", 3528 __func__, rc); 3529 goto out_free_iocb; 3530 } 3531 } 3532 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 3533 3534 *((uint32_t *) (pcmd)) = ELS_CMD_SCR; 3535 pcmd += sizeof(uint32_t); 3536 3537 /* For SCR, remainder of payload is SCR parameter page */ 3538 memset(pcmd, 0, sizeof(SCR)); 3539 ((SCR *) pcmd)->Function = SCR_FUNC_FULL; 3540 3541 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3542 "Issue SCR: did:x%x", 3543 ndlp->nlp_DID, 0, 0); 3544 3545 phba->fc_stat.elsXmitSCR++; 3546 elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd; 3547 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3548 if (!elsiocb->ndlp) 3549 goto out_free_iocb; 3550 3551 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3552 "Issue SCR: did:x%x refcnt %d", 3553 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 3554 3555 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3556 if (rc == IOCB_ERROR) 3557 goto out_iocb_error; 3558 3559 return 0; 3560 3561out_iocb_error: 3562 lpfc_nlp_put(ndlp); 3563out_free_iocb: 3564 lpfc_els_free_iocb(phba, elsiocb); 3565out_node_created: 3566 if (node_created) 3567 lpfc_nlp_put(ndlp); 3568 return 1; 3569} 3570 3571/** 3572 * lpfc_issue_els_rscn - Issue an RSCN to the Fabric Controller (Fabric) 3573 * or the other nport (pt2pt). 3574 * @vport: pointer to a host virtual N_Port data structure. 3575 * @retry: number of retries to the command IOCB. 3576 * 3577 * This routine issues a RSCN to the Fabric Controller (DID 0xFFFFFD) 3578 * when connected to a fabric, or to the remote port when connected 3579 * in point-to-point mode. When sent to the Fabric Controller, it will 3580 * replay the RSCN to registered recipients. 3581 * 3582 * Note that the ndlp reference count will be incremented by 1 for holding the 3583 * ndlp and the reference to ndlp will be stored into the ndlp field of 3584 * the IOCB for the completion callback function to the RSCN ELS command. 3585 * 3586 * Return code 3587 * 0 - Successfully issued RSCN command 3588 * 1 - Failed to issue RSCN command 3589 **/ 3590int 3591lpfc_issue_els_rscn(struct lpfc_vport *vport, uint8_t retry) 3592{ 3593 int rc = 0; 3594 struct lpfc_hba *phba = vport->phba; 3595 struct lpfc_iocbq *elsiocb; 3596 struct lpfc_nodelist *ndlp; 3597 struct { 3598 struct fc_els_rscn rscn; 3599 struct fc_els_rscn_page portid; 3600 } *event; 3601 uint32_t nportid; 3602 uint16_t cmdsize = sizeof(*event); 3603 3604 /* Not supported for private loop */ 3605 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 3606 !test_bit(FC_PUBLIC_LOOP, &vport->fc_flag)) 3607 return 1; 3608 3609 if (test_bit(FC_PT2PT, &vport->fc_flag)) { 3610 /* find any mapped nport - that would be the other nport */ 3611 ndlp = lpfc_findnode_mapped(vport); 3612 if (!ndlp) 3613 return 1; 3614 } else { 3615 nportid = FC_FID_FCTRL; 3616 /* find the fabric controller node */ 3617 ndlp = lpfc_findnode_did(vport, nportid); 3618 if (!ndlp) { 3619 /* if one didn't exist, make one */ 3620 ndlp = lpfc_nlp_init(vport, nportid); 3621 if (!ndlp) 3622 return 1; 3623 lpfc_enqueue_node(vport, ndlp); 3624 } 3625 } 3626 3627 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3628 ndlp->nlp_DID, ELS_CMD_RSCN_XMT); 3629 3630 if (!elsiocb) 3631 return 1; 3632 3633 event = elsiocb->cmd_dmabuf->virt; 3634 3635 event->rscn.rscn_cmd = ELS_RSCN; 3636 event->rscn.rscn_page_len = sizeof(struct fc_els_rscn_page); 3637 event->rscn.rscn_plen = cpu_to_be16(cmdsize); 3638 3639 nportid = vport->fc_myDID; 3640 /* appears that page flags must be 0 for fabric to broadcast RSCN */ 3641 event->portid.rscn_page_flags = 0; 3642 event->portid.rscn_fid[0] = (nportid & 0x00FF0000) >> 16; 3643 event->portid.rscn_fid[1] = (nportid & 0x0000FF00) >> 8; 3644 event->portid.rscn_fid[2] = nportid & 0x000000FF; 3645 3646 phba->fc_stat.elsXmitRSCN++; 3647 elsiocb->cmd_cmpl = lpfc_cmpl_els_cmd; 3648 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3649 if (!elsiocb->ndlp) { 3650 lpfc_els_free_iocb(phba, elsiocb); 3651 return 1; 3652 } 3653 3654 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3655 "Issue RSCN: did:x%x refcnt %d", 3656 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 3657 3658 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3659 if (rc == IOCB_ERROR) { 3660 lpfc_els_free_iocb(phba, elsiocb); 3661 lpfc_nlp_put(ndlp); 3662 return 1; 3663 } 3664 3665 return 0; 3666} 3667 3668/** 3669 * lpfc_issue_els_farpr - Issue a farp to an node on a vport 3670 * @vport: pointer to a host virtual N_Port data structure. 3671 * @nportid: N_Port identifier to the remote node. 3672 * @retry: number of retries to the command IOCB. 3673 * 3674 * This routine issues a Fibre Channel Address Resolution Response 3675 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid) 3676 * is passed into the function. It first search the @vport node list to find 3677 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created 3678 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the 3679 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command. 3680 * 3681 * Note that the ndlp reference count will be incremented by 1 for holding the 3682 * ndlp and the reference to ndlp will be stored into the ndlp field of 3683 * the IOCB for the completion callback function to the FARPR ELS command. 3684 * 3685 * Return code 3686 * 0 - Successfully issued farpr command 3687 * 1 - Failed to issue farpr command 3688 **/ 3689static int 3690lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) 3691{ 3692 int rc = 0; 3693 struct lpfc_hba *phba = vport->phba; 3694 struct lpfc_iocbq *elsiocb; 3695 FARP *fp; 3696 uint8_t *pcmd; 3697 uint32_t *lp; 3698 uint16_t cmdsize; 3699 struct lpfc_nodelist *ondlp; 3700 struct lpfc_nodelist *ndlp; 3701 3702 cmdsize = (sizeof(uint32_t) + sizeof(FARP)); 3703 3704 ndlp = lpfc_findnode_did(vport, nportid); 3705 if (!ndlp) { 3706 ndlp = lpfc_nlp_init(vport, nportid); 3707 if (!ndlp) 3708 return 1; 3709 lpfc_enqueue_node(vport, ndlp); 3710 } 3711 3712 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3713 ndlp->nlp_DID, ELS_CMD_FARPR); 3714 if (!elsiocb) 3715 return 1; 3716 3717 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 3718 3719 *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; 3720 pcmd += sizeof(uint32_t); 3721 3722 /* Fill in FARPR payload */ 3723 fp = (FARP *) (pcmd); 3724 memset(fp, 0, sizeof(FARP)); 3725 lp = (uint32_t *) pcmd; 3726 *lp++ = be32_to_cpu(nportid); 3727 *lp++ = be32_to_cpu(vport->fc_myDID); 3728 fp->Rflags = 0; 3729 fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); 3730 3731 memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)); 3732 memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 3733 ondlp = lpfc_findnode_did(vport, nportid); 3734 if (ondlp) { 3735 memcpy(&fp->OportName, &ondlp->nlp_portname, 3736 sizeof(struct lpfc_name)); 3737 memcpy(&fp->OnodeName, &ondlp->nlp_nodename, 3738 sizeof(struct lpfc_name)); 3739 } 3740 3741 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3742 "Issue FARPR: did:x%x", 3743 ndlp->nlp_DID, 0, 0); 3744 3745 phba->fc_stat.elsXmitFARPR++; 3746 elsiocb->cmd_cmpl = lpfc_cmpl_els_cmd; 3747 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3748 if (!elsiocb->ndlp) { 3749 lpfc_els_free_iocb(phba, elsiocb); 3750 return 1; 3751 } 3752 3753 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3754 if (rc == IOCB_ERROR) { 3755 /* The additional lpfc_nlp_put will cause the following 3756 * lpfc_els_free_iocb routine to trigger the release of 3757 * the node. 3758 */ 3759 lpfc_els_free_iocb(phba, elsiocb); 3760 lpfc_nlp_put(ndlp); 3761 return 1; 3762 } 3763 3764 return 0; 3765} 3766 3767/** 3768 * lpfc_issue_els_rdf - Register for diagnostic functions from the fabric. 3769 * @vport: pointer to a host virtual N_Port data structure. 3770 * @retry: retry counter for the command IOCB. 3771 * 3772 * This routine issues an ELS RDF to the Fabric Controller to register 3773 * for diagnostic functions. 3774 * 3775 * Note that the ndlp reference count will be incremented by 1 for holding the 3776 * ndlp and the reference to ndlp will be stored into the ndlp field of 3777 * the IOCB for the completion callback function to the RDF ELS command. 3778 * 3779 * Return code 3780 * 0 - Successfully issued rdf command 3781 * < 0 - Failed to issue rdf command 3782 * -EACCES - RDF not required for NPIV_PORT 3783 * -ENODEV - No fabric controller device available 3784 * -ENOMEM - No available memory 3785 * -EIO - The mailbox failed to complete successfully. 3786 * 3787 **/ 3788int 3789lpfc_issue_els_rdf(struct lpfc_vport *vport, uint8_t retry) 3790{ 3791 struct lpfc_hba *phba = vport->phba; 3792 struct lpfc_iocbq *elsiocb; 3793 struct lpfc_els_rdf_req *prdf; 3794 struct lpfc_nodelist *ndlp; 3795 uint16_t cmdsize; 3796 int rc; 3797 bool node_created = false; 3798 int err; 3799 3800 cmdsize = sizeof(*prdf); 3801 3802 /* RDF ELS is not required on an NPIV VN_Port. */ 3803 if (vport->port_type == LPFC_NPIV_PORT) 3804 return -EACCES; 3805 3806 ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID); 3807 if (!ndlp) { 3808 ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID); 3809 if (!ndlp) 3810 return -ENODEV; 3811 lpfc_enqueue_node(vport, ndlp); 3812 node_created = true; 3813 } 3814 3815 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3816 ndlp->nlp_DID, ELS_CMD_RDF); 3817 if (!elsiocb) { 3818 err = -ENOMEM; 3819 goto out_node_created; 3820 } 3821 3822 /* Configure the payload for the supported FPIN events. */ 3823 prdf = (struct lpfc_els_rdf_req *)elsiocb->cmd_dmabuf->virt; 3824 memset(prdf, 0, cmdsize); 3825 prdf->rdf.fpin_cmd = ELS_RDF; 3826 prdf->rdf.desc_len = cpu_to_be32(sizeof(struct lpfc_els_rdf_req) - 3827 sizeof(struct fc_els_rdf_hdr)); 3828 prdf->reg_d1.reg_desc.desc_tag = cpu_to_be32(ELS_DTAG_FPIN_REGISTER); 3829 prdf->reg_d1.reg_desc.desc_len = cpu_to_be32( 3830 FC_TLV_DESC_LENGTH_FROM_SZ(prdf->reg_d1)); 3831 prdf->reg_d1.reg_desc.count = cpu_to_be32(ELS_RDF_REG_TAG_CNT); 3832 prdf->reg_d1.desc_tags[0] = cpu_to_be32(ELS_DTAG_LNK_INTEGRITY); 3833 prdf->reg_d1.desc_tags[1] = cpu_to_be32(ELS_DTAG_DELIVERY); 3834 prdf->reg_d1.desc_tags[2] = cpu_to_be32(ELS_DTAG_PEER_CONGEST); 3835 prdf->reg_d1.desc_tags[3] = cpu_to_be32(ELS_DTAG_CONGESTION); 3836 3837 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 3838 "6444 Xmit RDF to remote NPORT x%x Reg: %x %x\n", 3839 ndlp->nlp_DID, phba->cgn_reg_signal, 3840 phba->cgn_reg_fpin); 3841 3842 phba->cgn_fpin_frequency = LPFC_FPIN_INIT_FREQ; 3843 elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd; 3844 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3845 if (!elsiocb->ndlp) { 3846 err = -EIO; 3847 goto out_free_iocb; 3848 } 3849 3850 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3851 "Issue RDF: did:x%x refcnt %d", 3852 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 3853 3854 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3855 if (rc == IOCB_ERROR) { 3856 err = -EIO; 3857 goto out_iocb_error; 3858 } 3859 return 0; 3860 3861out_iocb_error: 3862 lpfc_nlp_put(ndlp); 3863out_free_iocb: 3864 lpfc_els_free_iocb(phba, elsiocb); 3865out_node_created: 3866 if (node_created) 3867 lpfc_nlp_put(ndlp); 3868 return err; 3869} 3870 3871 /** 3872 * lpfc_els_rcv_rdf - Receive RDF ELS request from the fabric. 3873 * @vport: pointer to a host virtual N_Port data structure. 3874 * @cmdiocb: pointer to lpfc command iocb data structure. 3875 * @ndlp: pointer to a node-list data structure. 3876 * 3877 * A received RDF implies a possible change to fabric supported diagnostic 3878 * functions. This routine sends LS_ACC and then has the Nx_Port issue a new 3879 * RDF request to reregister for supported diagnostic functions. 3880 * 3881 * Return code 3882 * 0 - Success 3883 * -EIO - Failed to process received RDF 3884 **/ 3885static int 3886lpfc_els_rcv_rdf(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 3887 struct lpfc_nodelist *ndlp) 3888{ 3889 int rc; 3890 3891 rc = lpfc_els_rsp_acc(vport, ELS_CMD_RDF, cmdiocb, ndlp, NULL); 3892 /* Send LS_ACC */ 3893 if (rc) { 3894 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 3895 "1623 Failed to RDF_ACC from x%x for x%x Data: %d\n", 3896 ndlp->nlp_DID, vport->fc_myDID, rc); 3897 return -EIO; 3898 } 3899 3900 rc = lpfc_issue_els_rdf(vport, 0); 3901 /* Issue new RDF for reregistering */ 3902 if (rc) { 3903 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 3904 "2623 Failed to re register RDF for x%x Data: %d\n", 3905 vport->fc_myDID, rc); 3906 return -EIO; 3907 } 3908 3909 return 0; 3910} 3911 3912/** 3913 * lpfc_least_capable_settings - helper function for EDC rsp processing 3914 * @phba: pointer to lpfc hba data structure. 3915 * @pcgd: pointer to congestion detection descriptor in EDC rsp. 3916 * 3917 * This helper routine determines the least capable setting for 3918 * congestion signals, signal freq, including scale, from the 3919 * congestion detection descriptor in the EDC rsp. The routine 3920 * sets @phba values in preparation for a set_featues mailbox. 3921 **/ 3922static void 3923lpfc_least_capable_settings(struct lpfc_hba *phba, 3924 struct fc_diag_cg_sig_desc *pcgd) 3925{ 3926 u32 rsp_sig_cap = 0, drv_sig_cap = 0; 3927 u32 rsp_sig_freq_cyc = 0, rsp_sig_freq_scale = 0; 3928 3929 /* Get rsp signal and frequency capabilities. */ 3930 rsp_sig_cap = be32_to_cpu(pcgd->xmt_signal_capability); 3931 rsp_sig_freq_cyc = be16_to_cpu(pcgd->xmt_signal_frequency.count); 3932 rsp_sig_freq_scale = be16_to_cpu(pcgd->xmt_signal_frequency.units); 3933 3934 /* If the Fport does not support signals. Set FPIN only */ 3935 if (rsp_sig_cap == EDC_CG_SIG_NOTSUPPORTED) 3936 goto out_no_support; 3937 3938 /* Apply the xmt scale to the xmt cycle to get the correct frequency. 3939 * Adapter default is 100 millisSeconds. Convert all xmt cycle values 3940 * to milliSeconds. 3941 */ 3942 switch (rsp_sig_freq_scale) { 3943 case EDC_CG_SIGFREQ_SEC: 3944 rsp_sig_freq_cyc *= MSEC_PER_SEC; 3945 break; 3946 case EDC_CG_SIGFREQ_MSEC: 3947 rsp_sig_freq_cyc = 1; 3948 break; 3949 default: 3950 goto out_no_support; 3951 } 3952 3953 /* Convenient shorthand. */ 3954 drv_sig_cap = phba->cgn_reg_signal; 3955 3956 /* Choose the least capable frequency. */ 3957 if (rsp_sig_freq_cyc > phba->cgn_sig_freq) 3958 phba->cgn_sig_freq = rsp_sig_freq_cyc; 3959 3960 /* Should be some common signals support. Settle on least capable 3961 * signal and adjust FPIN values. Initialize defaults to ease the 3962 * decision. 3963 */ 3964 phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM; 3965 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 3966 if (rsp_sig_cap == EDC_CG_SIG_WARN_ONLY && 3967 (drv_sig_cap == EDC_CG_SIG_WARN_ONLY || 3968 drv_sig_cap == EDC_CG_SIG_WARN_ALARM)) { 3969 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY; 3970 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN; 3971 } 3972 if (rsp_sig_cap == EDC_CG_SIG_WARN_ALARM) { 3973 if (drv_sig_cap == EDC_CG_SIG_WARN_ALARM) { 3974 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ALARM; 3975 phba->cgn_reg_fpin = LPFC_CGN_FPIN_NONE; 3976 } 3977 if (drv_sig_cap == EDC_CG_SIG_WARN_ONLY) { 3978 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY; 3979 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN; 3980 } 3981 } 3982 3983 /* We are NOT recording signal frequency in congestion info buffer */ 3984 return; 3985 3986out_no_support: 3987 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 3988 phba->cgn_sig_freq = 0; 3989 phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN; 3990} 3991 3992DECLARE_ENUM2STR_LOOKUP(lpfc_get_tlv_dtag_nm, fc_ls_tlv_dtag, 3993 FC_LS_TLV_DTAG_INIT); 3994 3995/** 3996 * lpfc_cmpl_els_edc - Completion callback function for EDC 3997 * @phba: pointer to lpfc hba data structure. 3998 * @cmdiocb: pointer to lpfc command iocb data structure. 3999 * @rspiocb: pointer to lpfc response iocb data structure. 4000 * 4001 * This routine is the completion callback function for issuing the Exchange 4002 * Diagnostic Capabilities (EDC) command. The driver issues an EDC to 4003 * notify the FPort of its Congestion and Link Fault capabilities. This 4004 * routine parses the FPort's response and decides on the least common 4005 * values applicable to both FPort and NPort for Warnings and Alarms that 4006 * are communicated via hardware signals. 4007 **/ 4008static void 4009lpfc_cmpl_els_edc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 4010 struct lpfc_iocbq *rspiocb) 4011{ 4012 IOCB_t *irsp_iocb; 4013 struct fc_els_edc_resp *edc_rsp; 4014 struct fc_tlv_desc *tlv; 4015 struct fc_diag_cg_sig_desc *pcgd; 4016 struct fc_diag_lnkflt_desc *plnkflt; 4017 struct lpfc_dmabuf *pcmd, *prsp; 4018 const char *dtag_nm; 4019 u32 *pdata, dtag; 4020 int desc_cnt = 0, bytes_remain; 4021 bool rcv_cap_desc = false; 4022 struct lpfc_nodelist *ndlp; 4023 u32 ulp_status, ulp_word4, tmo, did, iotag; 4024 4025 ndlp = cmdiocb->ndlp; 4026 4027 ulp_status = get_job_ulpstatus(phba, rspiocb); 4028 ulp_word4 = get_job_word4(phba, rspiocb); 4029 did = get_job_els_rsp64_did(phba, rspiocb); 4030 4031 if (phba->sli_rev == LPFC_SLI_REV4) { 4032 tmo = get_wqe_tmo(rspiocb); 4033 iotag = get_wqe_reqtag(rspiocb); 4034 } else { 4035 irsp_iocb = &rspiocb->iocb; 4036 tmo = irsp_iocb->ulpTimeout; 4037 iotag = irsp_iocb->ulpIoTag; 4038 } 4039 4040 lpfc_debugfs_disc_trc(phba->pport, LPFC_DISC_TRC_ELS_CMD, 4041 "EDC cmpl: status:x%x/x%x did:x%x", 4042 ulp_status, ulp_word4, did); 4043 4044 /* ELS cmd tag <ulpIoTag> completes */ 4045 lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 4046 "4201 EDC cmd tag x%x completes Data: x%x x%x x%x\n", 4047 iotag, ulp_status, ulp_word4, tmo); 4048 4049 pcmd = cmdiocb->cmd_dmabuf; 4050 if (!pcmd) 4051 goto out; 4052 4053 pdata = (u32 *)pcmd->virt; 4054 if (!pdata) 4055 goto out; 4056 4057 /* Need to clear signal values, send features MB and RDF with FPIN. */ 4058 if (ulp_status) 4059 goto out; 4060 4061 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 4062 if (!prsp) 4063 goto out; 4064 4065 edc_rsp = prsp->virt; 4066 if (!edc_rsp) 4067 goto out; 4068 4069 /* ELS cmd tag <ulpIoTag> completes */ 4070 lpfc_printf_log(phba, KERN_INFO, 4071 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 4072 "4676 Fabric EDC Rsp: " 4073 "0x%02x, 0x%08x\n", 4074 edc_rsp->acc_hdr.la_cmd, 4075 be32_to_cpu(edc_rsp->desc_list_len)); 4076 4077 if (!lpfc_is_els_acc_rsp(prsp)) 4078 goto out; 4079 4080 /* 4081 * Payload length in bytes is the response descriptor list 4082 * length minus the 12 bytes of Link Service Request 4083 * Information descriptor in the reply. 4084 */ 4085 bytes_remain = be32_to_cpu(edc_rsp->desc_list_len) - 4086 sizeof(struct fc_els_lsri_desc); 4087 if (bytes_remain <= 0) 4088 goto out; 4089 4090 tlv = edc_rsp->desc; 4091 4092 /* 4093 * cycle through EDC diagnostic descriptors to find the 4094 * congestion signaling capability descriptor 4095 */ 4096 while (bytes_remain) { 4097 if (bytes_remain < FC_TLV_DESC_HDR_SZ) { 4098 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 4099 "6461 Truncated TLV hdr on " 4100 "Diagnostic descriptor[%d]\n", 4101 desc_cnt); 4102 goto out; 4103 } 4104 4105 dtag = be32_to_cpu(tlv->desc_tag); 4106 switch (dtag) { 4107 case ELS_DTAG_LNK_FAULT_CAP: 4108 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 4109 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 4110 sizeof(struct fc_diag_lnkflt_desc)) { 4111 lpfc_printf_log(phba, KERN_WARNING, 4112 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 4113 "6462 Truncated Link Fault Diagnostic " 4114 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 4115 desc_cnt, bytes_remain, 4116 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 4117 sizeof(struct fc_diag_lnkflt_desc)); 4118 goto out; 4119 } 4120 plnkflt = (struct fc_diag_lnkflt_desc *)tlv; 4121 lpfc_printf_log(phba, KERN_INFO, 4122 LOG_ELS | LOG_LDS_EVENT, 4123 "4617 Link Fault Desc Data: 0x%08x 0x%08x " 4124 "0x%08x 0x%08x 0x%08x\n", 4125 be32_to_cpu(plnkflt->desc_tag), 4126 be32_to_cpu(plnkflt->desc_len), 4127 be32_to_cpu( 4128 plnkflt->degrade_activate_threshold), 4129 be32_to_cpu( 4130 plnkflt->degrade_deactivate_threshold), 4131 be32_to_cpu(plnkflt->fec_degrade_interval)); 4132 break; 4133 case ELS_DTAG_CG_SIGNAL_CAP: 4134 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 4135 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 4136 sizeof(struct fc_diag_cg_sig_desc)) { 4137 lpfc_printf_log( 4138 phba, KERN_WARNING, LOG_CGN_MGMT, 4139 "6463 Truncated Cgn Signal Diagnostic " 4140 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 4141 desc_cnt, bytes_remain, 4142 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 4143 sizeof(struct fc_diag_cg_sig_desc)); 4144 goto out; 4145 } 4146 4147 pcgd = (struct fc_diag_cg_sig_desc *)tlv; 4148 lpfc_printf_log( 4149 phba, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 4150 "4616 CGN Desc Data: 0x%08x 0x%08x " 4151 "0x%08x 0x%04x 0x%04x 0x%08x 0x%04x 0x%04x\n", 4152 be32_to_cpu(pcgd->desc_tag), 4153 be32_to_cpu(pcgd->desc_len), 4154 be32_to_cpu(pcgd->xmt_signal_capability), 4155 be16_to_cpu(pcgd->xmt_signal_frequency.count), 4156 be16_to_cpu(pcgd->xmt_signal_frequency.units), 4157 be32_to_cpu(pcgd->rcv_signal_capability), 4158 be16_to_cpu(pcgd->rcv_signal_frequency.count), 4159 be16_to_cpu(pcgd->rcv_signal_frequency.units)); 4160 4161 /* Compare driver and Fport capabilities and choose 4162 * least common. 4163 */ 4164 lpfc_least_capable_settings(phba, pcgd); 4165 rcv_cap_desc = true; 4166 break; 4167 default: 4168 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 4169 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 4170 "4919 unknown Diagnostic " 4171 "Descriptor[%d]: tag x%x (%s)\n", 4172 desc_cnt, dtag, dtag_nm); 4173 } 4174 4175 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv); 4176 tlv = fc_tlv_next_desc(tlv); 4177 desc_cnt++; 4178 } 4179 4180out: 4181 if (!rcv_cap_desc) { 4182 phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN; 4183 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 4184 phba->cgn_sig_freq = 0; 4185 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_CGN_MGMT, 4186 "4202 EDC rsp error - sending RDF " 4187 "for FPIN only.\n"); 4188 } 4189 4190 lpfc_config_cgn_signal(phba); 4191 4192 /* Check to see if link went down during discovery */ 4193 lpfc_els_chk_latt(phba->pport); 4194 lpfc_debugfs_disc_trc(phba->pport, LPFC_DISC_TRC_ELS_CMD, 4195 "EDC Cmpl: did:x%x refcnt %d", 4196 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 4197 lpfc_els_free_iocb(phba, cmdiocb); 4198 lpfc_nlp_put(ndlp); 4199} 4200 4201static void 4202lpfc_format_edc_lft_desc(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 4203{ 4204 struct fc_diag_lnkflt_desc *lft = (struct fc_diag_lnkflt_desc *)tlv; 4205 4206 lft->desc_tag = cpu_to_be32(ELS_DTAG_LNK_FAULT_CAP); 4207 lft->desc_len = cpu_to_be32( 4208 FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_diag_lnkflt_desc)); 4209 4210 lft->degrade_activate_threshold = 4211 cpu_to_be32(phba->degrade_activate_threshold); 4212 lft->degrade_deactivate_threshold = 4213 cpu_to_be32(phba->degrade_deactivate_threshold); 4214 lft->fec_degrade_interval = cpu_to_be32(phba->fec_degrade_interval); 4215} 4216 4217static void 4218lpfc_format_edc_cgn_desc(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 4219{ 4220 struct fc_diag_cg_sig_desc *cgd = (struct fc_diag_cg_sig_desc *)tlv; 4221 4222 /* We are assuming cgd was zero'ed before calling this routine */ 4223 4224 /* Configure the congestion detection capability */ 4225 cgd->desc_tag = cpu_to_be32(ELS_DTAG_CG_SIGNAL_CAP); 4226 4227 /* Descriptor len doesn't include the tag or len fields. */ 4228 cgd->desc_len = cpu_to_be32( 4229 FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_diag_cg_sig_desc)); 4230 4231 /* xmt_signal_capability already set to EDC_CG_SIG_NOTSUPPORTED. 4232 * xmt_signal_frequency.count already set to 0. 4233 * xmt_signal_frequency.units already set to 0. 4234 */ 4235 4236 if (phba->cmf_active_mode == LPFC_CFG_OFF) { 4237 /* rcv_signal_capability already set to EDC_CG_SIG_NOTSUPPORTED. 4238 * rcv_signal_frequency.count already set to 0. 4239 * rcv_signal_frequency.units already set to 0. 4240 */ 4241 phba->cgn_sig_freq = 0; 4242 return; 4243 } 4244 switch (phba->cgn_reg_signal) { 4245 case EDC_CG_SIG_WARN_ONLY: 4246 cgd->rcv_signal_capability = cpu_to_be32(EDC_CG_SIG_WARN_ONLY); 4247 break; 4248 case EDC_CG_SIG_WARN_ALARM: 4249 cgd->rcv_signal_capability = cpu_to_be32(EDC_CG_SIG_WARN_ALARM); 4250 break; 4251 default: 4252 /* rcv_signal_capability left 0 thus no support */ 4253 break; 4254 } 4255 4256 /* We start negotiation with lpfc_fabric_cgn_frequency, after 4257 * the completion we settle on the higher frequency. 4258 */ 4259 cgd->rcv_signal_frequency.count = 4260 cpu_to_be16(lpfc_fabric_cgn_frequency); 4261 cgd->rcv_signal_frequency.units = 4262 cpu_to_be16(EDC_CG_SIGFREQ_MSEC); 4263} 4264 4265static bool 4266lpfc_link_is_lds_capable(struct lpfc_hba *phba) 4267{ 4268 if (!(phba->lmt & LMT_64Gb)) 4269 return false; 4270 if (phba->sli_rev != LPFC_SLI_REV4) 4271 return false; 4272 4273 if (phba->sli4_hba.conf_trunk) { 4274 if (phba->trunk_link.phy_lnk_speed == LPFC_USER_LINK_SPEED_64G) 4275 return true; 4276 } else if (phba->fc_linkspeed == LPFC_LINK_SPEED_64GHZ) { 4277 return true; 4278 } 4279 return false; 4280} 4281 4282 /** 4283 * lpfc_issue_els_edc - Exchange Diagnostic Capabilities with the fabric. 4284 * @vport: pointer to a host virtual N_Port data structure. 4285 * @retry: retry counter for the command iocb. 4286 * 4287 * This routine issues an ELS EDC to the F-Port Controller to communicate 4288 * this N_Port's support of hardware signals in its Congestion 4289 * Capabilities Descriptor. 4290 * 4291 * Note: This routine does not check if one or more signals are 4292 * set in the cgn_reg_signal parameter. The caller makes the 4293 * decision to enforce cgn_reg_signal as nonzero or zero depending 4294 * on the conditions. During Fabric requests, the driver 4295 * requires cgn_reg_signals to be nonzero. But a dynamic request 4296 * to set the congestion mode to OFF from Monitor or Manage 4297 * would correctly issue an EDC with no signals enabled to 4298 * turn off switch functionality and then update the FW. 4299 * 4300 * Return code 4301 * 0 - Successfully issued edc command 4302 * 1 - Failed to issue edc command 4303 **/ 4304int 4305lpfc_issue_els_edc(struct lpfc_vport *vport, uint8_t retry) 4306{ 4307 struct lpfc_hba *phba = vport->phba; 4308 struct lpfc_iocbq *elsiocb; 4309 struct fc_els_edc *edc_req; 4310 struct fc_tlv_desc *tlv; 4311 u16 cmdsize; 4312 struct lpfc_nodelist *ndlp; 4313 u8 *pcmd = NULL; 4314 u32 cgn_desc_size, lft_desc_size; 4315 int rc; 4316 4317 if (vport->port_type == LPFC_NPIV_PORT) 4318 return -EACCES; 4319 4320 ndlp = lpfc_findnode_did(vport, Fabric_DID); 4321 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 4322 return -ENODEV; 4323 4324 cgn_desc_size = (phba->cgn_init_reg_signal) ? 4325 sizeof(struct fc_diag_cg_sig_desc) : 0; 4326 lft_desc_size = (lpfc_link_is_lds_capable(phba)) ? 4327 sizeof(struct fc_diag_lnkflt_desc) : 0; 4328 cmdsize = cgn_desc_size + lft_desc_size; 4329 4330 /* Skip EDC if no applicable descriptors */ 4331 if (!cmdsize) 4332 goto try_rdf; 4333 4334 cmdsize += sizeof(struct fc_els_edc); 4335 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 4336 ndlp->nlp_DID, ELS_CMD_EDC); 4337 if (!elsiocb) 4338 goto try_rdf; 4339 4340 /* Configure the payload for the supported Diagnostics capabilities. */ 4341 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 4342 memset(pcmd, 0, cmdsize); 4343 edc_req = (struct fc_els_edc *)pcmd; 4344 edc_req->desc_len = cpu_to_be32(cgn_desc_size + lft_desc_size); 4345 edc_req->edc_cmd = ELS_EDC; 4346 tlv = edc_req->desc; 4347 4348 if (cgn_desc_size) { 4349 lpfc_format_edc_cgn_desc(phba, tlv); 4350 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency; 4351 tlv = fc_tlv_next_desc(tlv); 4352 } 4353 4354 if (lft_desc_size) 4355 lpfc_format_edc_lft_desc(phba, tlv); 4356 4357 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 4358 "4623 Xmit EDC to remote " 4359 "NPORT x%x reg_sig x%x reg_fpin:x%x\n", 4360 ndlp->nlp_DID, phba->cgn_reg_signal, 4361 phba->cgn_reg_fpin); 4362 4363 elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd; 4364 elsiocb->ndlp = lpfc_nlp_get(ndlp); 4365 if (!elsiocb->ndlp) { 4366 lpfc_els_free_iocb(phba, elsiocb); 4367 return -EIO; 4368 } 4369 4370 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4371 "Issue EDC: did:x%x refcnt %d", 4372 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 4373 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 4374 if (rc == IOCB_ERROR) { 4375 /* The additional lpfc_nlp_put will cause the following 4376 * lpfc_els_free_iocb routine to trigger the release of 4377 * the node. 4378 */ 4379 lpfc_els_free_iocb(phba, elsiocb); 4380 lpfc_nlp_put(ndlp); 4381 goto try_rdf; 4382 } 4383 return 0; 4384try_rdf: 4385 phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM; 4386 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 4387 rc = lpfc_issue_els_rdf(vport, 0); 4388 return rc; 4389} 4390 4391/** 4392 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry 4393 * @vport: pointer to a host virtual N_Port data structure. 4394 * @nlp: pointer to a node-list data structure. 4395 * 4396 * This routine cancels the timer with a delayed IOCB-command retry for 4397 * a @vport's @ndlp. It stops the timer for the delayed function retrial and 4398 * removes the ELS retry event if it presents. In addition, if the 4399 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB 4400 * commands are sent for the @vport's nodes that require issuing discovery 4401 * ADISC. 4402 **/ 4403void 4404lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) 4405{ 4406 struct lpfc_work_evt *evtp; 4407 4408 if (!test_and_clear_bit(NLP_DELAY_TMO, &nlp->nlp_flag)) 4409 return; 4410 timer_delete_sync(&nlp->nlp_delayfunc); 4411 nlp->nlp_last_elscmd = 0; 4412 if (!list_empty(&nlp->els_retry_evt.evt_listp)) { 4413 list_del_init(&nlp->els_retry_evt.evt_listp); 4414 /* Decrement nlp reference count held for the delayed retry */ 4415 evtp = &nlp->els_retry_evt; 4416 lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1); 4417 } 4418 if (test_and_clear_bit(NLP_NPR_2B_DISC, &nlp->nlp_flag)) { 4419 if (vport->num_disc_nodes) { 4420 if (vport->port_state < LPFC_VPORT_READY) { 4421 /* Check if there are more ADISCs to be sent */ 4422 lpfc_more_adisc(vport); 4423 } else { 4424 /* Check if there are more PLOGIs to be sent */ 4425 lpfc_more_plogi(vport); 4426 if (vport->num_disc_nodes == 0) { 4427 clear_bit(FC_NDISC_ACTIVE, 4428 &vport->fc_flag); 4429 lpfc_can_disctmo(vport); 4430 lpfc_end_rscn(vport); 4431 } 4432 } 4433 } 4434 } 4435 return; 4436} 4437 4438/** 4439 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer 4440 * @t: pointer to the timer function associated data (ndlp). 4441 * 4442 * This routine is invoked by the ndlp delayed-function timer to check 4443 * whether there is any pending ELS retry event(s) with the node. If not, it 4444 * simply returns. Otherwise, if there is at least one ELS delayed event, it 4445 * adds the delayed events to the HBA work list and invokes the 4446 * lpfc_worker_wake_up() routine to wake up worker thread to process the 4447 * event. Note that lpfc_nlp_get() is called before posting the event to 4448 * the work list to hold reference count of ndlp so that it guarantees the 4449 * reference to ndlp will still be available when the worker thread gets 4450 * to the event associated with the ndlp. 4451 **/ 4452void 4453lpfc_els_retry_delay(struct timer_list *t) 4454{ 4455 struct lpfc_nodelist *ndlp = timer_container_of(ndlp, t, 4456 nlp_delayfunc); 4457 struct lpfc_vport *vport = ndlp->vport; 4458 struct lpfc_hba *phba = vport->phba; 4459 unsigned long flags; 4460 struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; 4461 4462 /* Hold a node reference for outstanding queued work */ 4463 if (!lpfc_nlp_get(ndlp)) 4464 return; 4465 4466 spin_lock_irqsave(&phba->hbalock, flags); 4467 if (!list_empty(&evtp->evt_listp)) { 4468 spin_unlock_irqrestore(&phba->hbalock, flags); 4469 lpfc_nlp_put(ndlp); 4470 return; 4471 } 4472 4473 evtp->evt_arg1 = ndlp; 4474 evtp->evt = LPFC_EVT_ELS_RETRY; 4475 list_add_tail(&evtp->evt_listp, &phba->work_list); 4476 spin_unlock_irqrestore(&phba->hbalock, flags); 4477 4478 lpfc_worker_wake_up(phba); 4479} 4480 4481/** 4482 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function 4483 * @ndlp: pointer to a node-list data structure. 4484 * 4485 * This routine is the worker-thread handler for processing the @ndlp delayed 4486 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves 4487 * the last ELS command from the associated ndlp and invokes the proper ELS 4488 * function according to the delayed ELS command to retry the command. 4489 **/ 4490void 4491lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) 4492{ 4493 struct lpfc_vport *vport = ndlp->vport; 4494 uint32_t cmd, retry; 4495 4496 spin_lock_irq(&ndlp->lock); 4497 cmd = ndlp->nlp_last_elscmd; 4498 ndlp->nlp_last_elscmd = 0; 4499 spin_unlock_irq(&ndlp->lock); 4500 4501 if (!test_and_clear_bit(NLP_DELAY_TMO, &ndlp->nlp_flag)) 4502 return; 4503 4504 /* 4505 * If a discovery event readded nlp_delayfunc after timer 4506 * firing and before processing the timer, cancel the 4507 * nlp_delayfunc. 4508 */ 4509 timer_delete_sync(&ndlp->nlp_delayfunc); 4510 retry = ndlp->nlp_retry; 4511 ndlp->nlp_retry = 0; 4512 4513 switch (cmd) { 4514 case ELS_CMD_FLOGI: 4515 lpfc_issue_els_flogi(vport, ndlp, retry); 4516 break; 4517 case ELS_CMD_PLOGI: 4518 if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) { 4519 ndlp->nlp_prev_state = ndlp->nlp_state; 4520 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 4521 } 4522 break; 4523 case ELS_CMD_ADISC: 4524 if (!lpfc_issue_els_adisc(vport, ndlp, retry)) { 4525 ndlp->nlp_prev_state = ndlp->nlp_state; 4526 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 4527 } 4528 break; 4529 case ELS_CMD_PRLI: 4530 case ELS_CMD_NVMEPRLI: 4531 if (!lpfc_issue_els_prli(vport, ndlp, retry)) { 4532 ndlp->nlp_prev_state = ndlp->nlp_state; 4533 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 4534 } 4535 break; 4536 case ELS_CMD_LOGO: 4537 if (!lpfc_issue_els_logo(vport, ndlp, retry)) { 4538 ndlp->nlp_prev_state = ndlp->nlp_state; 4539 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); 4540 } 4541 break; 4542 case ELS_CMD_FDISC: 4543 if (!test_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag)) 4544 lpfc_issue_els_fdisc(vport, ndlp, retry); 4545 break; 4546 } 4547 return; 4548} 4549 4550/** 4551 * lpfc_link_reset - Issue link reset 4552 * @vport: pointer to a virtual N_Port data structure. 4553 * 4554 * This routine performs link reset by sending INIT_LINK mailbox command. 4555 * For SLI-3 adapter, link attention interrupt is enabled before issuing 4556 * INIT_LINK mailbox command. 4557 * 4558 * Return code 4559 * 0 - Link reset initiated successfully 4560 * 1 - Failed to initiate link reset 4561 **/ 4562int 4563lpfc_link_reset(struct lpfc_vport *vport) 4564{ 4565 struct lpfc_hba *phba = vport->phba; 4566 LPFC_MBOXQ_t *mbox; 4567 uint32_t control; 4568 int rc; 4569 4570 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 4571 "2851 Attempt link reset\n"); 4572 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4573 if (!mbox) { 4574 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4575 "2852 Failed to allocate mbox memory"); 4576 return 1; 4577 } 4578 4579 /* Enable Link attention interrupts */ 4580 if (phba->sli_rev <= LPFC_SLI_REV3) { 4581 spin_lock_irq(&phba->hbalock); 4582 phba->sli.sli_flag |= LPFC_PROCESS_LA; 4583 control = readl(phba->HCregaddr); 4584 control |= HC_LAINT_ENA; 4585 writel(control, phba->HCregaddr); 4586 readl(phba->HCregaddr); /* flush */ 4587 spin_unlock_irq(&phba->hbalock); 4588 } 4589 4590 lpfc_init_link(phba, mbox, phba->cfg_topology, 4591 phba->cfg_link_speed); 4592 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4593 mbox->vport = vport; 4594 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4595 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 4596 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4597 "2853 Failed to issue INIT_LINK " 4598 "mbox command, rc:x%x\n", rc); 4599 mempool_free(mbox, phba->mbox_mem_pool); 4600 return 1; 4601 } 4602 4603 return 0; 4604} 4605 4606/** 4607 * lpfc_els_retry - Make retry decision on an els command iocb 4608 * @phba: pointer to lpfc hba data structure. 4609 * @cmdiocb: pointer to lpfc command iocb data structure. 4610 * @rspiocb: pointer to lpfc response iocb data structure. 4611 * 4612 * This routine makes a retry decision on an ELS command IOCB, which has 4613 * failed. The following ELS IOCBs use this function for retrying the command 4614 * when previously issued command responsed with error status: FLOGI, PLOGI, 4615 * PRLI, ADISC and FDISC. Based on the ELS command type and the 4616 * returned error status, it makes the decision whether a retry shall be 4617 * issued for the command, and whether a retry shall be made immediately or 4618 * delayed. In the former case, the corresponding ELS command issuing-function 4619 * is called to retry the command. In the later case, the ELS command shall 4620 * be posted to the ndlp delayed event and delayed function timer set to the 4621 * ndlp for the delayed command issusing. 4622 * 4623 * Return code 4624 * 0 - No retry of els command is made 4625 * 1 - Immediate or delayed retry of els command is made 4626 **/ 4627static int 4628lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 4629 struct lpfc_iocbq *rspiocb) 4630{ 4631 struct lpfc_vport *vport = cmdiocb->vport; 4632 union lpfc_wqe128 *irsp = &rspiocb->wqe; 4633 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 4634 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 4635 uint32_t *elscmd; 4636 struct ls_rjt stat; 4637 int retry = 0, maxretry = lpfc_max_els_tries, delay = 0; 4638 int logerr = 0; 4639 uint32_t cmd = 0; 4640 uint32_t did; 4641 int link_reset = 0, rc; 4642 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 4643 u32 ulp_word4 = get_job_word4(phba, rspiocb); 4644 u8 rsn_code_exp = 0; 4645 4646 4647 /* Note: cmd_dmabuf may be 0 for internal driver abort 4648 * of delays ELS command. 4649 */ 4650 4651 if (pcmd && pcmd->virt) { 4652 elscmd = (uint32_t *) (pcmd->virt); 4653 cmd = *elscmd++; 4654 } 4655 4656 if (ndlp) 4657 did = ndlp->nlp_DID; 4658 else { 4659 /* We should only hit this case for retrying PLOGI */ 4660 did = get_job_els_rsp64_did(phba, rspiocb); 4661 ndlp = lpfc_findnode_did(vport, did); 4662 if (!ndlp && (cmd != ELS_CMD_PLOGI)) 4663 return 0; 4664 } 4665 4666 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4667 "Retry ELS: wd7:x%x wd4:x%x did:x%x", 4668 *(((uint32_t *)irsp) + 7), ulp_word4, did); 4669 4670 switch (ulp_status) { 4671 case IOSTAT_FCP_RSP_ERROR: 4672 break; 4673 case IOSTAT_REMOTE_STOP: 4674 if (phba->sli_rev == LPFC_SLI_REV4) { 4675 /* This IO was aborted by the target, we don't 4676 * know the rxid and because we did not send the 4677 * ABTS we cannot generate and RRQ. 4678 */ 4679 lpfc_set_rrq_active(phba, ndlp, 4680 cmdiocb->sli4_lxritag, 0, 0); 4681 } 4682 break; 4683 case IOSTAT_LOCAL_REJECT: 4684 switch ((ulp_word4 & IOERR_PARAM_MASK)) { 4685 case IOERR_LOOP_OPEN_FAILURE: 4686 if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) 4687 delay = 1000; 4688 retry = 1; 4689 break; 4690 4691 case IOERR_ILLEGAL_COMMAND: 4692 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4693 "0124 Retry illegal cmd x%x " 4694 "retry:x%x delay:x%x\n", 4695 cmd, cmdiocb->retry, delay); 4696 retry = 1; 4697 /* All command's retry policy */ 4698 maxretry = 8; 4699 if (cmdiocb->retry > 2) 4700 delay = 1000; 4701 break; 4702 4703 case IOERR_NO_RESOURCES: 4704 logerr = 1; /* HBA out of resources */ 4705 retry = 1; 4706 if (cmdiocb->retry > 100) 4707 delay = 100; 4708 maxretry = 250; 4709 break; 4710 4711 case IOERR_ILLEGAL_FRAME: 4712 delay = 100; 4713 retry = 1; 4714 break; 4715 4716 case IOERR_INVALID_RPI: 4717 if (cmd == ELS_CMD_PLOGI && 4718 did == NameServer_DID) { 4719 /* Continue forever if plogi to */ 4720 /* the nameserver fails */ 4721 maxretry = 0; 4722 delay = 100; 4723 } else if (cmd == ELS_CMD_PRLI && 4724 ndlp->nlp_state != NLP_STE_PRLI_ISSUE) { 4725 /* State-command disagreement. The PRLI was 4726 * failed with an invalid rpi meaning there 4727 * some unexpected state change. Don't retry. 4728 */ 4729 maxretry = 0; 4730 retry = 0; 4731 break; 4732 } 4733 retry = 1; 4734 break; 4735 4736 case IOERR_SEQUENCE_TIMEOUT: 4737 if (cmd == ELS_CMD_PLOGI && 4738 did == NameServer_DID && 4739 (cmdiocb->retry + 1) == maxretry) { 4740 /* Reset the Link */ 4741 link_reset = 1; 4742 break; 4743 } 4744 retry = 1; 4745 delay = 100; 4746 break; 4747 case IOERR_SLI_ABORTED: 4748 /* Retry ELS PLOGI command? 4749 * Possibly the rport just wasn't ready. 4750 */ 4751 if (cmd == ELS_CMD_PLOGI) { 4752 /* No retry if state change */ 4753 if (ndlp && 4754 ndlp->nlp_state != NLP_STE_PLOGI_ISSUE) 4755 goto out_retry; 4756 retry = 1; 4757 maxretry = 2; 4758 } 4759 break; 4760 } 4761 break; 4762 4763 case IOSTAT_NPORT_RJT: 4764 case IOSTAT_FABRIC_RJT: 4765 if (ulp_word4 & RJT_UNAVAIL_TEMP) { 4766 retry = 1; 4767 break; 4768 } 4769 break; 4770 4771 case IOSTAT_NPORT_BSY: 4772 case IOSTAT_FABRIC_BSY: 4773 logerr = 1; /* Fabric / Remote NPort out of resources */ 4774 retry = 1; 4775 break; 4776 4777 case IOSTAT_LS_RJT: 4778 stat.un.ls_rjt_error_be = cpu_to_be32(ulp_word4); 4779 /* Added for Vendor specifc support 4780 * Just keep retrying for these Rsn / Exp codes 4781 */ 4782 if (test_bit(FC_PT2PT, &vport->fc_flag) && 4783 cmd == ELS_CMD_NVMEPRLI) { 4784 switch (stat.un.b.lsRjtRsnCode) { 4785 case LSRJT_UNABLE_TPC: 4786 case LSRJT_INVALID_CMD: 4787 case LSRJT_LOGICAL_ERR: 4788 case LSRJT_CMD_UNSUPPORTED: 4789 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS, 4790 "0168 NVME PRLI LS_RJT " 4791 "reason %x port doesn't " 4792 "support NVME, disabling NVME\n", 4793 stat.un.b.lsRjtRsnCode); 4794 retry = 0; 4795 set_bit(FC_PT2PT_NO_NVME, &vport->fc_flag); 4796 goto out_retry; 4797 } 4798 } 4799 switch (stat.un.b.lsRjtRsnCode) { 4800 case LSRJT_UNABLE_TPC: 4801 /* Special case for PRLI LS_RJTs. Recall that lpfc 4802 * uses a single routine to issue both PRLI FC4 types. 4803 * If the PRLI is rejected because that FC4 type 4804 * isn't really supported, don't retry and cause 4805 * multiple transport registrations. Otherwise, parse 4806 * the reason code/reason code explanation and take the 4807 * appropriate action. 4808 */ 4809 lpfc_printf_vlog(vport, KERN_INFO, 4810 LOG_DISCOVERY | LOG_ELS | LOG_NODE, 4811 "0153 ELS cmd x%x LS_RJT by x%x. " 4812 "RsnCode x%x RsnCodeExp x%x\n", 4813 cmd, did, stat.un.b.lsRjtRsnCode, 4814 stat.un.b.lsRjtRsnCodeExp); 4815 4816 switch (stat.un.b.lsRjtRsnCodeExp) { 4817 case LSEXP_CANT_GIVE_DATA: 4818 case LSEXP_CMD_IN_PROGRESS: 4819 if (cmd == ELS_CMD_PLOGI) { 4820 delay = 1000; 4821 maxretry = 48; 4822 } 4823 retry = 1; 4824 break; 4825 case LSEXP_REQ_UNSUPPORTED: 4826 case LSEXP_NO_RSRC_ASSIGN: 4827 /* These explanation codes get no retry. */ 4828 if (cmd == ELS_CMD_PRLI || 4829 cmd == ELS_CMD_NVMEPRLI) 4830 break; 4831 fallthrough; 4832 default: 4833 /* Limit the delay and retry action to a limited 4834 * cmd set. There are other ELS commands where 4835 * a retry is not expected. 4836 */ 4837 if (cmd == ELS_CMD_PLOGI || 4838 cmd == ELS_CMD_PRLI || 4839 cmd == ELS_CMD_NVMEPRLI) { 4840 delay = 1000; 4841 maxretry = lpfc_max_els_tries + 1; 4842 retry = 1; 4843 } 4844 break; 4845 } 4846 4847 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 4848 (cmd == ELS_CMD_FDISC) && 4849 (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){ 4850 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 4851 "0125 FDISC (x%x). " 4852 "Fabric out of resources\n", 4853 stat.un.lsRjtError); 4854 lpfc_vport_set_state(vport, 4855 FC_VPORT_NO_FABRIC_RSCS); 4856 } 4857 break; 4858 4859 case LSRJT_LOGICAL_BSY: 4860 rsn_code_exp = stat.un.b.lsRjtRsnCodeExp; 4861 if ((cmd == ELS_CMD_PLOGI) || 4862 (cmd == ELS_CMD_PRLI) || 4863 (cmd == ELS_CMD_NVMEPRLI)) { 4864 delay = 1000; 4865 maxretry = 48; 4866 4867 /* An authentication LS_RJT reason code 4868 * explanation means some error in the 4869 * security settings end-to-end. Reduce 4870 * the retry count to allow lpfc to clear 4871 * RSCN mode and not race with dev_loss. 4872 */ 4873 if (cmd == ELS_CMD_PLOGI && 4874 rsn_code_exp == LSEXP_AUTH_REQ) 4875 maxretry = 8; 4876 } else if (cmd == ELS_CMD_FDISC) { 4877 /* FDISC retry policy */ 4878 maxretry = 48; 4879 if (cmdiocb->retry >= 32) 4880 delay = 1000; 4881 } 4882 retry = 1; 4883 break; 4884 4885 case LSRJT_LOGICAL_ERR: 4886 /* There are some cases where switches return this 4887 * error when they are not ready and should be returning 4888 * Logical Busy. We should delay every time. 4889 */ 4890 if (cmd == ELS_CMD_FDISC && 4891 stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) { 4892 maxretry = 3; 4893 delay = 1000; 4894 retry = 1; 4895 } else if (cmd == ELS_CMD_FLOGI && 4896 stat.un.b.lsRjtRsnCodeExp == 4897 LSEXP_NOTHING_MORE) { 4898 vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf; 4899 retry = 1; 4900 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 4901 "0820 FLOGI (x%x). " 4902 "BBCredit Not Supported\n", 4903 stat.un.lsRjtError); 4904 } else if (cmd == ELS_CMD_PLOGI) { 4905 rsn_code_exp = stat.un.b.lsRjtRsnCodeExp; 4906 4907 /* An authentication LS_RJT reason code 4908 * explanation means some error in the 4909 * security settings end-to-end. Reduce 4910 * the retry count to allow lpfc to clear 4911 * RSCN mode and not race with dev_loss. 4912 */ 4913 if (rsn_code_exp == LSEXP_AUTH_REQ) { 4914 delay = 1000; 4915 retry = 1; 4916 maxretry = 8; 4917 } 4918 } 4919 break; 4920 4921 case LSRJT_PROTOCOL_ERR: 4922 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 4923 (cmd == ELS_CMD_FDISC) && 4924 ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) || 4925 (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) 4926 ) { 4927 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 4928 "0122 FDISC (x%x). " 4929 "Fabric Detected Bad WWN\n", 4930 stat.un.lsRjtError); 4931 lpfc_vport_set_state(vport, 4932 FC_VPORT_FABRIC_REJ_WWN); 4933 } 4934 break; 4935 case LSRJT_VENDOR_UNIQUE: 4936 if ((stat.un.b.vendorUnique == 0x45) && 4937 (cmd == ELS_CMD_FLOGI)) { 4938 goto out_retry; 4939 } 4940 break; 4941 case LSRJT_CMD_UNSUPPORTED: 4942 /* lpfc nvmet returns this type of LS_RJT when it 4943 * receives an FCP PRLI because lpfc nvmet only 4944 * support NVME. ELS request is terminated for FCP4 4945 * on this rport. 4946 */ 4947 if (stat.un.b.lsRjtRsnCodeExp == 4948 LSEXP_REQ_UNSUPPORTED) { 4949 if (cmd == ELS_CMD_PRLI) 4950 goto out_retry; 4951 } 4952 break; 4953 } 4954 break; 4955 4956 case IOSTAT_INTERMED_RSP: 4957 case IOSTAT_BA_RJT: 4958 break; 4959 4960 default: 4961 break; 4962 } 4963 4964 if (link_reset) { 4965 rc = lpfc_link_reset(vport); 4966 if (rc) { 4967 /* Do not give up. Retry PLOGI one more time and attempt 4968 * link reset if PLOGI fails again. 4969 */ 4970 retry = 1; 4971 delay = 100; 4972 goto out_retry; 4973 } 4974 return 1; 4975 } 4976 4977 if (did == FDMI_DID) 4978 retry = 1; 4979 4980 if ((cmd == ELS_CMD_FLOGI) && 4981 (phba->fc_topology != LPFC_TOPOLOGY_LOOP) && 4982 !lpfc_error_lost_link(vport, ulp_status, ulp_word4)) { 4983 /* FLOGI retry policy */ 4984 retry = 1; 4985 /* retry FLOGI forever */ 4986 if (phba->link_flag != LS_LOOPBACK_MODE) 4987 maxretry = 0; 4988 else 4989 maxretry = 2; 4990 4991 if (cmdiocb->retry >= 100) 4992 delay = 5000; 4993 else if (cmdiocb->retry >= 32) 4994 delay = 1000; 4995 } else if ((cmd == ELS_CMD_FDISC) && 4996 !lpfc_error_lost_link(vport, ulp_status, ulp_word4)) { 4997 /* retry FDISCs every second up to devloss */ 4998 retry = 1; 4999 maxretry = vport->cfg_devloss_tmo; 5000 delay = 1000; 5001 } 5002 5003 cmdiocb->retry++; 5004 if (maxretry && (cmdiocb->retry >= maxretry)) { 5005 phba->fc_stat.elsRetryExceeded++; 5006 retry = 0; 5007 } 5008 5009 if (test_bit(FC_UNLOADING, &vport->load_flag)) 5010 retry = 0; 5011 5012out_retry: 5013 if (retry) { 5014 if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) { 5015 /* Stop retrying PLOGI and FDISC if in FCF discovery */ 5016 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 5017 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5018 "2849 Stop retry ELS command " 5019 "x%x to remote NPORT x%x, " 5020 "Data: x%x x%x\n", cmd, did, 5021 cmdiocb->retry, delay); 5022 return 0; 5023 } 5024 } 5025 5026 /* Retry ELS command <elsCmd> to remote NPORT <did> */ 5027 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5028 "0107 Retry ELS command x%x to remote " 5029 "NPORT x%x Data: x%x x%x\n", 5030 cmd, did, cmdiocb->retry, delay); 5031 5032 if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) && 5033 ((ulp_status != IOSTAT_LOCAL_REJECT) || 5034 ((ulp_word4 & IOERR_PARAM_MASK) != 5035 IOERR_NO_RESOURCES))) { 5036 /* Don't reset timer for no resources */ 5037 5038 /* If discovery / RSCN timer is running, reset it */ 5039 if (timer_pending(&vport->fc_disctmo) || 5040 test_bit(FC_RSCN_MODE, &vport->fc_flag)) 5041 lpfc_set_disctmo(vport); 5042 } 5043 5044 phba->fc_stat.elsXmitRetry++; 5045 if (ndlp && delay) { 5046 phba->fc_stat.elsDelayRetry++; 5047 ndlp->nlp_retry = cmdiocb->retry; 5048 5049 /* delay is specified in milliseconds */ 5050 mod_timer(&ndlp->nlp_delayfunc, 5051 jiffies + msecs_to_jiffies(delay)); 5052 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 5053 5054 ndlp->nlp_prev_state = ndlp->nlp_state; 5055 if ((cmd == ELS_CMD_PRLI) || 5056 (cmd == ELS_CMD_NVMEPRLI)) 5057 lpfc_nlp_set_state(vport, ndlp, 5058 NLP_STE_PRLI_ISSUE); 5059 else if (cmd != ELS_CMD_ADISC) 5060 lpfc_nlp_set_state(vport, ndlp, 5061 NLP_STE_NPR_NODE); 5062 ndlp->nlp_last_elscmd = cmd; 5063 5064 return 1; 5065 } 5066 switch (cmd) { 5067 case ELS_CMD_FLOGI: 5068 lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry); 5069 return 1; 5070 case ELS_CMD_FDISC: 5071 lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry); 5072 return 1; 5073 case ELS_CMD_PLOGI: 5074 if (ndlp) { 5075 ndlp->nlp_prev_state = ndlp->nlp_state; 5076 lpfc_nlp_set_state(vport, ndlp, 5077 NLP_STE_PLOGI_ISSUE); 5078 } 5079 lpfc_issue_els_plogi(vport, did, cmdiocb->retry); 5080 return 1; 5081 case ELS_CMD_ADISC: 5082 ndlp->nlp_prev_state = ndlp->nlp_state; 5083 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 5084 lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry); 5085 return 1; 5086 case ELS_CMD_PRLI: 5087 case ELS_CMD_NVMEPRLI: 5088 ndlp->nlp_prev_state = ndlp->nlp_state; 5089 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 5090 lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry); 5091 return 1; 5092 case ELS_CMD_LOGO: 5093 ndlp->nlp_prev_state = ndlp->nlp_state; 5094 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); 5095 lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry); 5096 return 1; 5097 } 5098 } 5099 /* No retry ELS command <elsCmd> to remote NPORT <did> */ 5100 if (logerr) { 5101 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5102 "0137 No retry ELS command x%x to remote " 5103 "NPORT x%x: Out of Resources: Error:x%x/%x " 5104 "IoTag x%x\n", 5105 cmd, did, ulp_status, ulp_word4, 5106 cmdiocb->iotag); 5107 } 5108 else { 5109 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5110 "0108 No retry ELS command x%x to remote " 5111 "NPORT x%x Retried:%d Error:x%x/%x " 5112 "IoTag x%x nflags x%lx\n", 5113 cmd, did, cmdiocb->retry, ulp_status, 5114 ulp_word4, cmdiocb->iotag, 5115 (ndlp ? ndlp->nlp_flag : 0)); 5116 } 5117 return 0; 5118} 5119 5120/** 5121 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb 5122 * @phba: pointer to lpfc hba data structure. 5123 * @buf_ptr1: pointer to the lpfc DMA buffer data structure. 5124 * 5125 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s) 5126 * associated with a command IOCB back to the lpfc DMA buffer pool. It first 5127 * checks to see whether there is a lpfc DMA buffer associated with the 5128 * response of the command IOCB. If so, it will be released before releasing 5129 * the lpfc DMA buffer associated with the IOCB itself. 5130 * 5131 * Return code 5132 * 0 - Successfully released lpfc DMA buffer (currently, always return 0) 5133 **/ 5134static int 5135lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1) 5136{ 5137 struct lpfc_dmabuf *buf_ptr; 5138 5139 /* Free the response before processing the command. */ 5140 if (!list_empty(&buf_ptr1->list)) { 5141 list_remove_head(&buf_ptr1->list, buf_ptr, 5142 struct lpfc_dmabuf, 5143 list); 5144 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 5145 kfree(buf_ptr); 5146 } 5147 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); 5148 kfree(buf_ptr1); 5149 return 0; 5150} 5151 5152/** 5153 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl 5154 * @phba: pointer to lpfc hba data structure. 5155 * @buf_ptr: pointer to the lpfc dma buffer data structure. 5156 * 5157 * This routine releases the lpfc Direct Memory Access (DMA) buffer 5158 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer 5159 * pool. 5160 * 5161 * Return code 5162 * 0 - Successfully released lpfc DMA buffer (currently, always return 0) 5163 **/ 5164static int 5165lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr) 5166{ 5167 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 5168 kfree(buf_ptr); 5169 return 0; 5170} 5171 5172/** 5173 * lpfc_els_free_iocb - Free a command iocb and its associated resources 5174 * @phba: pointer to lpfc hba data structure. 5175 * @elsiocb: pointer to lpfc els command iocb data structure. 5176 * 5177 * This routine frees a command IOCB and its associated resources. The 5178 * command IOCB data structure contains the reference to various associated 5179 * resources, these fields must be set to NULL if the associated reference 5180 * not present: 5181 * cmd_dmabuf - reference to cmd. 5182 * cmd_dmabuf->next - reference to rsp 5183 * rsp_dmabuf - unused 5184 * bpl_dmabuf - reference to bpl 5185 * 5186 * It first properly decrements the reference count held on ndlp for the 5187 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not 5188 * set, it invokes the lpfc_els_free_data() routine to release the Direct 5189 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it 5190 * adds the DMA buffer the @phba data structure for the delayed release. 5191 * If reference to the Buffer Pointer List (BPL) is present, the 5192 * lpfc_els_free_bpl() routine is invoked to release the DMA memory 5193 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is 5194 * invoked to release the IOCB data structure back to @phba IOCBQ list. 5195 * 5196 * Return code 5197 * 0 - Success (currently, always return 0) 5198 **/ 5199int 5200lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) 5201{ 5202 struct lpfc_dmabuf *buf_ptr, *buf_ptr1; 5203 5204 /* The I/O iocb is complete. Clear the node and first dmabuf */ 5205 elsiocb->ndlp = NULL; 5206 5207 /* cmd_dmabuf = cmd, cmd_dmabuf->next = rsp, bpl_dmabuf = bpl */ 5208 if (elsiocb->cmd_dmabuf) { 5209 if (elsiocb->cmd_flag & LPFC_DELAY_MEM_FREE) { 5210 /* Firmware could still be in progress of DMAing 5211 * payload, so don't free data buffer till after 5212 * a hbeat. 5213 */ 5214 elsiocb->cmd_flag &= ~LPFC_DELAY_MEM_FREE; 5215 buf_ptr = elsiocb->cmd_dmabuf; 5216 elsiocb->cmd_dmabuf = NULL; 5217 if (buf_ptr) { 5218 buf_ptr1 = NULL; 5219 spin_lock_irq(&phba->hbalock); 5220 if (!list_empty(&buf_ptr->list)) { 5221 list_remove_head(&buf_ptr->list, 5222 buf_ptr1, struct lpfc_dmabuf, 5223 list); 5224 INIT_LIST_HEAD(&buf_ptr1->list); 5225 list_add_tail(&buf_ptr1->list, 5226 &phba->elsbuf); 5227 phba->elsbuf_cnt++; 5228 } 5229 INIT_LIST_HEAD(&buf_ptr->list); 5230 list_add_tail(&buf_ptr->list, &phba->elsbuf); 5231 phba->elsbuf_cnt++; 5232 spin_unlock_irq(&phba->hbalock); 5233 } 5234 } else { 5235 buf_ptr1 = elsiocb->cmd_dmabuf; 5236 lpfc_els_free_data(phba, buf_ptr1); 5237 } 5238 } 5239 5240 if (elsiocb->bpl_dmabuf) { 5241 buf_ptr = elsiocb->bpl_dmabuf; 5242 lpfc_els_free_bpl(phba, buf_ptr); 5243 } 5244 lpfc_sli_release_iocbq(phba, elsiocb); 5245 return 0; 5246} 5247 5248/** 5249 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response 5250 * @phba: pointer to lpfc hba data structure. 5251 * @cmdiocb: pointer to lpfc command iocb data structure. 5252 * @rspiocb: pointer to lpfc response iocb data structure. 5253 * 5254 * This routine is the completion callback function to the Logout (LOGO) 5255 * Accept (ACC) Response ELS command. This routine is invoked to indicate 5256 * the completion of the LOGO process. If the node has transitioned to NPR, 5257 * this routine unregisters the RPI if it is still registered. The 5258 * lpfc_els_free_iocb() is invoked to release the IOCB data structure. 5259 **/ 5260static void 5261lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 5262 struct lpfc_iocbq *rspiocb) 5263{ 5264 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 5265 struct lpfc_vport *vport = cmdiocb->vport; 5266 u32 ulp_status, ulp_word4; 5267 5268 ulp_status = get_job_ulpstatus(phba, rspiocb); 5269 ulp_word4 = get_job_word4(phba, rspiocb); 5270 5271 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5272 "ACC LOGO cmpl: status:x%x/x%x did:x%x", 5273 ulp_status, ulp_word4, ndlp->nlp_DID); 5274 /* ACC to LOGO completes to NPort <nlp_DID> */ 5275 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5276 "0109 ACC to LOGO completes to NPort x%x refcnt %d " 5277 "last els x%x Data: x%lx x%x x%x\n", 5278 ndlp->nlp_DID, kref_read(&ndlp->kref), 5279 ndlp->nlp_last_elscmd, ndlp->nlp_flag, ndlp->nlp_state, 5280 ndlp->nlp_rpi); 5281 5282 /* This clause allows the LOGO ACC to complete and free resources 5283 * for the Fabric Domain Controller. It does deliberately skip 5284 * the unreg_rpi and release rpi because some fabrics send RDP 5285 * requests after logging out from the initiator. 5286 */ 5287 if (ndlp->nlp_type & NLP_FABRIC && 5288 ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK)) 5289 goto out; 5290 5291 if (ndlp->nlp_state == NLP_STE_NPR_NODE) { 5292 if (test_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag)) 5293 lpfc_unreg_rpi(vport, ndlp); 5294 5295 /* If came from PRLO, then PRLO_ACC is done. 5296 * Start rediscovery now. 5297 */ 5298 if (ndlp->nlp_last_elscmd == ELS_CMD_PRLO) { 5299 set_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 5300 ndlp->nlp_prev_state = ndlp->nlp_state; 5301 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 5302 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 5303 } 5304 } 5305 5306 out: 5307 /* 5308 * The driver received a LOGO from the rport and has ACK'd it. 5309 * At this point, the driver is done so release the IOCB 5310 */ 5311 lpfc_els_free_iocb(phba, cmdiocb); 5312 lpfc_nlp_put(ndlp); 5313} 5314 5315/** 5316 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd 5317 * @phba: pointer to lpfc hba data structure. 5318 * @pmb: pointer to the driver internal queue element for mailbox command. 5319 * 5320 * This routine is the completion callback function for unregister default 5321 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases 5322 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and 5323 * decrements the ndlp reference count held for this completion callback 5324 * function. After that, it invokes the lpfc_drop_node to check 5325 * whether it is appropriate to release the node. 5326 **/ 5327void 5328lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5329{ 5330 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; 5331 u32 mbx_flag = pmb->mbox_flag; 5332 u32 mbx_cmd = pmb->u.mb.mbxCommand; 5333 5334 if (ndlp) { 5335 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 5336 "0006 rpi x%x DID:%x flg:%lx %d x%px " 5337 "mbx_cmd x%x mbx_flag x%x x%px\n", 5338 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5339 kref_read(&ndlp->kref), ndlp, mbx_cmd, 5340 mbx_flag, pmb); 5341 5342 /* This ends the default/temporary RPI cleanup logic for this 5343 * ndlp and the node and rpi needs to be released. Free the rpi 5344 * first on an UNREG_LOGIN and then release the final 5345 * references. 5346 */ 5347 clear_bit(NLP_REG_LOGIN_SEND, &ndlp->nlp_flag); 5348 if (mbx_cmd == MBX_UNREG_LOGIN) 5349 clear_bit(NLP_UNREG_INP, &ndlp->nlp_flag); 5350 lpfc_nlp_put(ndlp); 5351 lpfc_drop_node(ndlp->vport, ndlp); 5352 } 5353 5354 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 5355} 5356 5357/** 5358 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd 5359 * @phba: pointer to lpfc hba data structure. 5360 * @cmdiocb: pointer to lpfc command iocb data structure. 5361 * @rspiocb: pointer to lpfc response iocb data structure. 5362 * 5363 * This routine is the completion callback function for ELS Response IOCB 5364 * command. In normal case, this callback function just properly sets the 5365 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference 5366 * field in the command IOCB is not NULL, the referred mailbox command will 5367 * be send out, and then invokes the lpfc_els_free_iocb() routine to release 5368 * the IOCB. 5369 **/ 5370static void 5371lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 5372 struct lpfc_iocbq *rspiocb) 5373{ 5374 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 5375 struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL; 5376 struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL; 5377 IOCB_t *irsp; 5378 LPFC_MBOXQ_t *mbox = NULL; 5379 u32 ulp_status, ulp_word4, tmo, did, iotag; 5380 u32 cmd; 5381 5382 if (!vport) { 5383 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, 5384 "3177 null vport in ELS rsp\n"); 5385 goto release; 5386 } 5387 if (cmdiocb->context_un.mbox) 5388 mbox = cmdiocb->context_un.mbox; 5389 5390 ulp_status = get_job_ulpstatus(phba, rspiocb); 5391 ulp_word4 = get_job_word4(phba, rspiocb); 5392 did = get_job_els_rsp64_did(phba, cmdiocb); 5393 5394 if (phba->sli_rev == LPFC_SLI_REV4) { 5395 tmo = get_wqe_tmo(cmdiocb); 5396 iotag = get_wqe_reqtag(cmdiocb); 5397 } else { 5398 irsp = &rspiocb->iocb; 5399 tmo = irsp->ulpTimeout; 5400 iotag = irsp->ulpIoTag; 5401 } 5402 5403 /* Check to see if link went down during discovery */ 5404 if (!ndlp || lpfc_els_chk_latt(vport)) { 5405 if (mbox) 5406 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 5407 goto out; 5408 } 5409 5410 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5411 "ELS rsp cmpl: status:x%x/x%x did:x%x", 5412 ulp_status, ulp_word4, did); 5413 /* ELS response tag <ulpIoTag> completes */ 5414 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5415 "0110 ELS response tag x%x completes fc_flag x%lx" 5416 "Data: x%x x%x x%x x%x x%lx x%x x%x x%x %p %p\n", 5417 iotag, vport->fc_flag, ulp_status, ulp_word4, tmo, 5418 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5419 ndlp->nlp_rpi, kref_read(&ndlp->kref), mbox, ndlp); 5420 if (mbox && !test_bit(FC_PT2PT, &vport->fc_flag)) { 5421 if (ulp_status == 0 && 5422 test_bit(NLP_ACC_REGLOGIN, &ndlp->nlp_flag)) { 5423 if (!lpfc_unreg_rpi(vport, ndlp) && 5424 !test_bit(FC_PT2PT, &vport->fc_flag)) { 5425 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5426 ndlp->nlp_state == 5427 NLP_STE_REG_LOGIN_ISSUE) { 5428 lpfc_printf_vlog(vport, KERN_INFO, 5429 LOG_DISCOVERY, 5430 "0314 PLOGI recov " 5431 "DID x%x " 5432 "Data: x%x x%x x%lx\n", 5433 ndlp->nlp_DID, 5434 ndlp->nlp_state, 5435 ndlp->nlp_rpi, 5436 ndlp->nlp_flag); 5437 goto out_free_mbox; 5438 } 5439 } 5440 5441 /* Increment reference count to ndlp to hold the 5442 * reference to ndlp for the callback function. 5443 */ 5444 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 5445 if (!mbox->ctx_ndlp) 5446 goto out_free_mbox; 5447 5448 mbox->vport = vport; 5449 if (test_bit(NLP_RM_DFLT_RPI, &ndlp->nlp_flag)) { 5450 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 5451 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 5452 } else { 5453 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 5454 ndlp->nlp_prev_state = ndlp->nlp_state; 5455 lpfc_nlp_set_state(vport, ndlp, 5456 NLP_STE_REG_LOGIN_ISSUE); 5457 } 5458 5459 set_bit(NLP_REG_LOGIN_SEND, &ndlp->nlp_flag); 5460 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 5461 != MBX_NOT_FINISHED) 5462 goto out; 5463 5464 /* Decrement the ndlp reference count we 5465 * set for this failed mailbox command. 5466 */ 5467 lpfc_nlp_put(ndlp); 5468 clear_bit(NLP_REG_LOGIN_SEND, &ndlp->nlp_flag); 5469 5470 /* ELS rsp: Cannot issue reg_login for <NPortid> */ 5471 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5472 "0138 ELS rsp: Cannot issue reg_login for x%x " 5473 "Data: x%lx x%x x%x\n", 5474 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5475 ndlp->nlp_rpi); 5476 } 5477out_free_mbox: 5478 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 5479 } else if (mbox && test_bit(FC_PT2PT, &vport->fc_flag) && 5480 test_bit(NLP_ACC_REGLOGIN, &ndlp->nlp_flag)) { 5481 lpfc_mbx_cmpl_reg_login(phba, mbox); 5482 clear_bit(NLP_ACC_REGLOGIN, &ndlp->nlp_flag); 5483 } 5484out: 5485 if (ndlp && shost) { 5486 if (mbox) 5487 clear_bit(NLP_ACC_REGLOGIN, &ndlp->nlp_flag); 5488 clear_bit(NLP_RM_DFLT_RPI, &ndlp->nlp_flag); 5489 } 5490 5491 /* An SLI4 NPIV instance wants to drop the node at this point under 5492 * these conditions because it doesn't need the login. 5493 */ 5494 if (phba->sli_rev == LPFC_SLI_REV4 && 5495 vport->port_type == LPFC_NPIV_PORT && 5496 !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) { 5497 if (ndlp->nlp_state != NLP_STE_PLOGI_ISSUE && 5498 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE && 5499 ndlp->nlp_state != NLP_STE_PRLI_ISSUE) { 5500 /* Drop ndlp if there is no planned or outstanding 5501 * issued PRLI. 5502 * 5503 * In cases when the ndlp is acting as both an initiator 5504 * and target function, let our issued PRLI determine 5505 * the final ndlp kref drop. 5506 */ 5507 lpfc_drop_node(vport, ndlp); 5508 } 5509 } 5510 5511 /* The driver's unsolicited deferred FLOGI ACC in Pt2Pt needs to 5512 * release the initial reference because the put after the free_iocb 5513 * call removes only the reference from the defer logic. This FLOGI 5514 * is never registered with the SCSI transport. 5515 */ 5516 if (test_bit(FC_PT2PT, &vport->fc_flag) && 5517 test_and_clear_bit(NLP_FLOGI_DFR_ACC, &ndlp->nlp_flag)) { 5518 lpfc_printf_vlog(vport, KERN_INFO, 5519 LOG_ELS | LOG_NODE | LOG_DISCOVERY, 5520 "3357 Pt2Pt Defer FLOGI ACC ndlp x%px, " 5521 "nflags x%lx, fc_flag x%lx\n", 5522 ndlp, ndlp->nlp_flag, 5523 vport->fc_flag); 5524 cmd = *((u32 *)cmdiocb->cmd_dmabuf->virt); 5525 if (cmd == ELS_CMD_ACC) { 5526 if (!test_and_set_bit(NLP_DROPPED, &ndlp->nlp_flag)) 5527 lpfc_nlp_put(ndlp); 5528 } 5529 } 5530 5531release: 5532 /* Release the originating I/O reference. */ 5533 lpfc_els_free_iocb(phba, cmdiocb); 5534 lpfc_nlp_put(ndlp); 5535 return; 5536} 5537 5538/** 5539 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command 5540 * @vport: pointer to a host virtual N_Port data structure. 5541 * @flag: the els command code to be accepted. 5542 * @oldiocb: pointer to the original lpfc command iocb data structure. 5543 * @ndlp: pointer to a node-list data structure. 5544 * @mbox: pointer to the driver internal queue element for mailbox command. 5545 * 5546 * This routine prepares and issues an Accept (ACC) response IOCB 5547 * command. It uses the @flag to properly set up the IOCB field for the 5548 * specific ACC response command to be issued and invokes the 5549 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a 5550 * @mbox pointer is passed in, it will be put into the context_un.mbox 5551 * field of the IOCB for the completion callback function to issue the 5552 * mailbox command to the HBA later when callback is invoked. 5553 * 5554 * Note that the ndlp reference count will be incremented by 1 for holding the 5555 * ndlp and the reference to ndlp will be stored into the ndlp field of 5556 * the IOCB for the completion callback function to the corresponding 5557 * response ELS IOCB command. 5558 * 5559 * Return code 5560 * 0 - Successfully issued acc response 5561 * 1 - Failed to issue acc response 5562 **/ 5563int 5564lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, 5565 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, 5566 LPFC_MBOXQ_t *mbox) 5567{ 5568 struct lpfc_hba *phba = vport->phba; 5569 IOCB_t *icmd; 5570 IOCB_t *oldcmd; 5571 union lpfc_wqe128 *wqe; 5572 union lpfc_wqe128 *oldwqe = &oldiocb->wqe; 5573 struct lpfc_iocbq *elsiocb; 5574 uint8_t *pcmd; 5575 struct serv_parm *sp; 5576 uint16_t cmdsize; 5577 int rc; 5578 ELS_PKT *els_pkt_ptr; 5579 struct fc_els_rdf_resp *rdf_resp; 5580 5581 switch (flag) { 5582 case ELS_CMD_ACC: 5583 cmdsize = sizeof(uint32_t); 5584 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5585 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5586 if (!elsiocb) { 5587 clear_bit(NLP_LOGO_ACC, &ndlp->nlp_flag); 5588 return 1; 5589 } 5590 5591 if (phba->sli_rev == LPFC_SLI_REV4) { 5592 wqe = &elsiocb->wqe; 5593 /* XRI / rx_id */ 5594 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5595 bf_get(wqe_ctxt_tag, 5596 &oldwqe->xmit_els_rsp.wqe_com)); 5597 5598 /* oxid */ 5599 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5600 bf_get(wqe_rcvoxid, 5601 &oldwqe->xmit_els_rsp.wqe_com)); 5602 } else { 5603 icmd = &elsiocb->iocb; 5604 oldcmd = &oldiocb->iocb; 5605 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5606 icmd->unsli3.rcvsli3.ox_id = 5607 oldcmd->unsli3.rcvsli3.ox_id; 5608 } 5609 5610 pcmd = elsiocb->cmd_dmabuf->virt; 5611 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 5612 pcmd += sizeof(uint32_t); 5613 5614 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5615 "Issue ACC: did:x%x flg:x%lx", 5616 ndlp->nlp_DID, ndlp->nlp_flag, 0); 5617 break; 5618 case ELS_CMD_FLOGI: 5619 case ELS_CMD_PLOGI: 5620 cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); 5621 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5622 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5623 if (!elsiocb) 5624 return 1; 5625 5626 if (phba->sli_rev == LPFC_SLI_REV4) { 5627 wqe = &elsiocb->wqe; 5628 /* XRI / rx_id */ 5629 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5630 bf_get(wqe_ctxt_tag, 5631 &oldwqe->xmit_els_rsp.wqe_com)); 5632 5633 /* oxid */ 5634 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5635 bf_get(wqe_rcvoxid, 5636 &oldwqe->xmit_els_rsp.wqe_com)); 5637 } else { 5638 icmd = &elsiocb->iocb; 5639 oldcmd = &oldiocb->iocb; 5640 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5641 icmd->unsli3.rcvsli3.ox_id = 5642 oldcmd->unsli3.rcvsli3.ox_id; 5643 } 5644 5645 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 5646 5647 if (mbox) 5648 elsiocb->context_un.mbox = mbox; 5649 5650 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 5651 pcmd += sizeof(uint32_t); 5652 sp = (struct serv_parm *)pcmd; 5653 5654 if (flag == ELS_CMD_FLOGI) { 5655 /* Copy the received service parameters back */ 5656 memcpy(sp, &phba->fc_fabparam, 5657 sizeof(struct serv_parm)); 5658 5659 /* Clear the F_Port bit */ 5660 sp->cmn.fPort = 0; 5661 5662 /* Mark all class service parameters as invalid */ 5663 sp->cls1.classValid = 0; 5664 sp->cls2.classValid = 0; 5665 sp->cls3.classValid = 0; 5666 5667 /* Copy our worldwide names */ 5668 memcpy(&sp->portName, &vport->fc_sparam.portName, 5669 sizeof(struct lpfc_name)); 5670 memcpy(&sp->nodeName, &vport->fc_sparam.nodeName, 5671 sizeof(struct lpfc_name)); 5672 } else { 5673 memcpy(pcmd, &vport->fc_sparam, 5674 sizeof(struct serv_parm)); 5675 5676 sp->cmn.valid_vendor_ver_level = 0; 5677 memset(sp->un.vendorVersion, 0, 5678 sizeof(sp->un.vendorVersion)); 5679 if (!test_bit(FC_PT2PT, &vport->fc_flag)) 5680 sp->cmn.bbRcvSizeMsb &= 0xF; 5681 5682 /* If our firmware supports this feature, convey that 5683 * info to the target using the vendor specific field. 5684 */ 5685 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) { 5686 sp->cmn.valid_vendor_ver_level = 1; 5687 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID); 5688 sp->un.vv.flags = 5689 cpu_to_be32(LPFC_VV_SUPPRESS_RSP); 5690 } 5691 } 5692 5693 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5694 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%lx", 5695 ndlp->nlp_DID, ndlp->nlp_flag, 0); 5696 break; 5697 case ELS_CMD_PRLO: 5698 cmdsize = sizeof(uint32_t) + sizeof(PRLO); 5699 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5700 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); 5701 if (!elsiocb) 5702 return 1; 5703 5704 if (phba->sli_rev == LPFC_SLI_REV4) { 5705 wqe = &elsiocb->wqe; 5706 /* XRI / rx_id */ 5707 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5708 bf_get(wqe_ctxt_tag, 5709 &oldwqe->xmit_els_rsp.wqe_com)); 5710 5711 /* oxid */ 5712 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5713 bf_get(wqe_rcvoxid, 5714 &oldwqe->xmit_els_rsp.wqe_com)); 5715 } else { 5716 icmd = &elsiocb->iocb; 5717 oldcmd = &oldiocb->iocb; 5718 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5719 icmd->unsli3.rcvsli3.ox_id = 5720 oldcmd->unsli3.rcvsli3.ox_id; 5721 } 5722 5723 pcmd = (u8 *) elsiocb->cmd_dmabuf->virt; 5724 5725 memcpy(pcmd, oldiocb->cmd_dmabuf->virt, 5726 sizeof(uint32_t) + sizeof(PRLO)); 5727 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; 5728 els_pkt_ptr = (ELS_PKT *) pcmd; 5729 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; 5730 5731 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5732 "Issue ACC PRLO: did:x%x flg:x%lx", 5733 ndlp->nlp_DID, ndlp->nlp_flag, 0); 5734 break; 5735 case ELS_CMD_RDF: 5736 cmdsize = sizeof(*rdf_resp); 5737 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5738 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5739 if (!elsiocb) 5740 return 1; 5741 5742 if (phba->sli_rev == LPFC_SLI_REV4) { 5743 wqe = &elsiocb->wqe; 5744 /* XRI / rx_id */ 5745 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5746 bf_get(wqe_ctxt_tag, 5747 &oldwqe->xmit_els_rsp.wqe_com)); 5748 5749 /* oxid */ 5750 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5751 bf_get(wqe_rcvoxid, 5752 &oldwqe->xmit_els_rsp.wqe_com)); 5753 } else { 5754 icmd = &elsiocb->iocb; 5755 oldcmd = &oldiocb->iocb; 5756 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5757 icmd->unsli3.rcvsli3.ox_id = 5758 oldcmd->unsli3.rcvsli3.ox_id; 5759 } 5760 5761 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 5762 rdf_resp = (struct fc_els_rdf_resp *)pcmd; 5763 memset(rdf_resp, 0, sizeof(*rdf_resp)); 5764 rdf_resp->acc_hdr.la_cmd = ELS_LS_ACC; 5765 5766 /* FC-LS-5 specifies desc_list_len shall be set to 12 */ 5767 rdf_resp->desc_list_len = cpu_to_be32(12); 5768 5769 /* FC-LS-5 specifies LS REQ Information descriptor */ 5770 rdf_resp->lsri.desc_tag = cpu_to_be32(1); 5771 rdf_resp->lsri.desc_len = cpu_to_be32(sizeof(u32)); 5772 rdf_resp->lsri.rqst_w0.cmd = ELS_RDF; 5773 break; 5774 default: 5775 return 1; 5776 } 5777 if (test_bit(NLP_LOGO_ACC, &ndlp->nlp_flag)) { 5778 if (!test_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag) && 5779 !test_bit(NLP_REG_LOGIN_SEND, &ndlp->nlp_flag)) 5780 clear_bit(NLP_LOGO_ACC, &ndlp->nlp_flag); 5781 elsiocb->cmd_cmpl = lpfc_cmpl_els_logo_acc; 5782 } else { 5783 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 5784 } 5785 5786 phba->fc_stat.elsXmitACC++; 5787 elsiocb->ndlp = lpfc_nlp_get(ndlp); 5788 if (!elsiocb->ndlp) { 5789 lpfc_els_free_iocb(phba, elsiocb); 5790 return 1; 5791 } 5792 5793 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 5794 if (rc == IOCB_ERROR) { 5795 lpfc_els_free_iocb(phba, elsiocb); 5796 lpfc_nlp_put(ndlp); 5797 return 1; 5798 } 5799 5800 /* Xmit ELS ACC response tag <ulpIoTag> */ 5801 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5802 "0128 Xmit ELS ACC response Status: x%x, IoTag: x%x, " 5803 "XRI: x%x, DID: x%x, nlp_flag: x%lx nlp_state: x%x " 5804 "RPI: x%x, fc_flag x%lx refcnt %d\n", 5805 rc, elsiocb->iotag, elsiocb->sli4_xritag, 5806 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5807 ndlp->nlp_rpi, vport->fc_flag, kref_read(&ndlp->kref)); 5808 return 0; 5809} 5810 5811/** 5812 * lpfc_els_rsp_reject - Prepare and issue a rjt response iocb command 5813 * @vport: pointer to a virtual N_Port data structure. 5814 * @rejectError: reject response to issue 5815 * @oldiocb: pointer to the original lpfc command iocb data structure. 5816 * @ndlp: pointer to a node-list data structure. 5817 * @mbox: pointer to the driver internal queue element for mailbox command. 5818 * 5819 * This routine prepares and issue an Reject (RJT) response IOCB 5820 * command. If a @mbox pointer is passed in, it will be put into the 5821 * context_un.mbox field of the IOCB for the completion callback function 5822 * to issue to the HBA later. 5823 * 5824 * Note that the ndlp reference count will be incremented by 1 for holding the 5825 * ndlp and the reference to ndlp will be stored into the ndlp field of 5826 * the IOCB for the completion callback function to the reject response 5827 * ELS IOCB command. 5828 * 5829 * Return code 5830 * 0 - Successfully issued reject response 5831 * 1 - Failed to issue reject response 5832 **/ 5833int 5834lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, 5835 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, 5836 LPFC_MBOXQ_t *mbox) 5837{ 5838 int rc; 5839 struct lpfc_hba *phba = vport->phba; 5840 IOCB_t *icmd; 5841 IOCB_t *oldcmd; 5842 union lpfc_wqe128 *wqe; 5843 struct lpfc_iocbq *elsiocb; 5844 uint8_t *pcmd; 5845 uint16_t cmdsize; 5846 5847 cmdsize = 2 * sizeof(uint32_t); 5848 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 5849 ndlp->nlp_DID, ELS_CMD_LS_RJT); 5850 if (!elsiocb) 5851 return 1; 5852 5853 if (phba->sli_rev == LPFC_SLI_REV4) { 5854 wqe = &elsiocb->wqe; 5855 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 5856 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 5857 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5858 get_job_rcvoxid(phba, oldiocb)); 5859 } else { 5860 icmd = &elsiocb->iocb; 5861 oldcmd = &oldiocb->iocb; 5862 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5863 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; 5864 } 5865 5866 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 5867 5868 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; 5869 pcmd += sizeof(uint32_t); 5870 *((uint32_t *) (pcmd)) = rejectError; 5871 5872 if (mbox) 5873 elsiocb->context_un.mbox = mbox; 5874 5875 /* Xmit ELS RJT <err> response tag <ulpIoTag> */ 5876 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5877 "0129 Xmit ELS RJT x%x response tag x%x " 5878 "xri x%x, did x%x, nlp_flag x%lx, nlp_state x%x, " 5879 "rpi x%x\n", 5880 rejectError, elsiocb->iotag, 5881 get_job_ulpcontext(phba, elsiocb), ndlp->nlp_DID, 5882 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); 5883 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5884 "Issue LS_RJT: did:x%x flg:x%lx err:x%x", 5885 ndlp->nlp_DID, ndlp->nlp_flag, rejectError); 5886 5887 phba->fc_stat.elsXmitLSRJT++; 5888 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 5889 elsiocb->ndlp = lpfc_nlp_get(ndlp); 5890 if (!elsiocb->ndlp) { 5891 lpfc_els_free_iocb(phba, elsiocb); 5892 return 1; 5893 } 5894 5895 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 5896 if (rc == IOCB_ERROR) { 5897 lpfc_els_free_iocb(phba, elsiocb); 5898 lpfc_nlp_put(ndlp); 5899 return 1; 5900 } 5901 5902 return 0; 5903} 5904 5905 /** 5906 * lpfc_issue_els_edc_rsp - Exchange Diagnostic Capabilities with the fabric. 5907 * @vport: pointer to a host virtual N_Port data structure. 5908 * @cmdiocb: pointer to the original lpfc command iocb data structure. 5909 * @ndlp: NPort to where rsp is directed 5910 * 5911 * This routine issues an EDC ACC RSP to the F-Port Controller to communicate 5912 * this N_Port's support of hardware signals in its Congestion 5913 * Capabilities Descriptor. 5914 * 5915 * Return code 5916 * 0 - Successfully issued edc rsp command 5917 * 1 - Failed to issue edc rsp command 5918 **/ 5919static int 5920lpfc_issue_els_edc_rsp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 5921 struct lpfc_nodelist *ndlp) 5922{ 5923 struct lpfc_hba *phba = vport->phba; 5924 struct fc_els_edc_resp *edc_rsp; 5925 struct fc_tlv_desc *tlv; 5926 struct lpfc_iocbq *elsiocb; 5927 IOCB_t *icmd, *cmd; 5928 union lpfc_wqe128 *wqe; 5929 u32 cgn_desc_size, lft_desc_size; 5930 u16 cmdsize; 5931 uint8_t *pcmd; 5932 int rc; 5933 5934 cmdsize = sizeof(struct fc_els_edc_resp); 5935 cgn_desc_size = sizeof(struct fc_diag_cg_sig_desc); 5936 lft_desc_size = (lpfc_link_is_lds_capable(phba)) ? 5937 sizeof(struct fc_diag_lnkflt_desc) : 0; 5938 cmdsize += cgn_desc_size + lft_desc_size; 5939 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, cmdiocb->retry, 5940 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5941 if (!elsiocb) 5942 return 1; 5943 5944 if (phba->sli_rev == LPFC_SLI_REV4) { 5945 wqe = &elsiocb->wqe; 5946 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 5947 get_job_ulpcontext(phba, cmdiocb)); /* Xri / rx_id */ 5948 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5949 get_job_rcvoxid(phba, cmdiocb)); 5950 } else { 5951 icmd = &elsiocb->iocb; 5952 cmd = &cmdiocb->iocb; 5953 icmd->ulpContext = cmd->ulpContext; /* Xri / rx_id */ 5954 icmd->unsli3.rcvsli3.ox_id = cmd->unsli3.rcvsli3.ox_id; 5955 } 5956 5957 pcmd = elsiocb->cmd_dmabuf->virt; 5958 memset(pcmd, 0, cmdsize); 5959 5960 edc_rsp = (struct fc_els_edc_resp *)pcmd; 5961 edc_rsp->acc_hdr.la_cmd = ELS_LS_ACC; 5962 edc_rsp->desc_list_len = cpu_to_be32(sizeof(struct fc_els_lsri_desc) + 5963 cgn_desc_size + lft_desc_size); 5964 edc_rsp->lsri.desc_tag = cpu_to_be32(ELS_DTAG_LS_REQ_INFO); 5965 edc_rsp->lsri.desc_len = cpu_to_be32( 5966 FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_els_lsri_desc)); 5967 edc_rsp->lsri.rqst_w0.cmd = ELS_EDC; 5968 tlv = edc_rsp->desc; 5969 lpfc_format_edc_cgn_desc(phba, tlv); 5970 tlv = fc_tlv_next_desc(tlv); 5971 if (lft_desc_size) 5972 lpfc_format_edc_lft_desc(phba, tlv); 5973 5974 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5975 "Issue EDC ACC: did:x%x flg:x%lx refcnt %d", 5976 ndlp->nlp_DID, ndlp->nlp_flag, 5977 kref_read(&ndlp->kref)); 5978 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 5979 5980 phba->fc_stat.elsXmitACC++; 5981 elsiocb->ndlp = lpfc_nlp_get(ndlp); 5982 if (!elsiocb->ndlp) { 5983 lpfc_els_free_iocb(phba, elsiocb); 5984 return 1; 5985 } 5986 5987 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 5988 if (rc == IOCB_ERROR) { 5989 lpfc_els_free_iocb(phba, elsiocb); 5990 lpfc_nlp_put(ndlp); 5991 return 1; 5992 } 5993 5994 /* Xmit ELS ACC response tag <ulpIoTag> */ 5995 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5996 "0152 Xmit EDC ACC response Status: x%x, IoTag: x%x, " 5997 "XRI: x%x, DID: x%x, nlp_flag: x%lx nlp_state: x%x " 5998 "RPI: x%x, fc_flag x%lx\n", 5999 rc, elsiocb->iotag, elsiocb->sli4_xritag, 6000 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 6001 ndlp->nlp_rpi, vport->fc_flag); 6002 6003 return 0; 6004} 6005 6006/** 6007 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd 6008 * @vport: pointer to a virtual N_Port data structure. 6009 * @oldiocb: pointer to the original lpfc command iocb data structure. 6010 * @ndlp: pointer to a node-list data structure. 6011 * 6012 * This routine prepares and issues an Accept (ACC) response to Address 6013 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB 6014 * and invokes the lpfc_sli_issue_iocb() routine to send out the command. 6015 * 6016 * Note that the ndlp reference count will be incremented by 1 for holding the 6017 * ndlp and the reference to ndlp will be stored into the ndlp field of 6018 * the IOCB for the completion callback function to the ADISC Accept response 6019 * ELS IOCB command. 6020 * 6021 * Return code 6022 * 0 - Successfully issued acc adisc response 6023 * 1 - Failed to issue adisc acc response 6024 **/ 6025int 6026lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, 6027 struct lpfc_nodelist *ndlp) 6028{ 6029 struct lpfc_hba *phba = vport->phba; 6030 ADISC *ap; 6031 IOCB_t *icmd, *oldcmd; 6032 union lpfc_wqe128 *wqe; 6033 struct lpfc_iocbq *elsiocb; 6034 uint8_t *pcmd; 6035 uint16_t cmdsize; 6036 int rc; 6037 u32 ulp_context; 6038 6039 cmdsize = sizeof(uint32_t) + sizeof(ADISC); 6040 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 6041 ndlp->nlp_DID, ELS_CMD_ACC); 6042 if (!elsiocb) 6043 return 1; 6044 6045 if (phba->sli_rev == LPFC_SLI_REV4) { 6046 wqe = &elsiocb->wqe; 6047 /* XRI / rx_id */ 6048 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6049 get_job_ulpcontext(phba, oldiocb)); 6050 ulp_context = get_job_ulpcontext(phba, elsiocb); 6051 /* oxid */ 6052 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6053 get_job_rcvoxid(phba, oldiocb)); 6054 } else { 6055 icmd = &elsiocb->iocb; 6056 oldcmd = &oldiocb->iocb; 6057 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6058 ulp_context = elsiocb->iocb.ulpContext; 6059 icmd->unsli3.rcvsli3.ox_id = 6060 oldcmd->unsli3.rcvsli3.ox_id; 6061 } 6062 6063 /* Xmit ADISC ACC response tag <ulpIoTag> */ 6064 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6065 "0130 Xmit ADISC ACC response iotag x%x xri: " 6066 "x%x, did x%x, nlp_flag x%lx, nlp_state x%x rpi x%x\n", 6067 elsiocb->iotag, ulp_context, 6068 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 6069 ndlp->nlp_rpi); 6070 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6071 6072 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 6073 pcmd += sizeof(uint32_t); 6074 6075 ap = (ADISC *) (pcmd); 6076 ap->hardAL_PA = phba->fc_pref_ALPA; 6077 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); 6078 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 6079 ap->DID = be32_to_cpu(vport->fc_myDID); 6080 6081 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6082 "Issue ACC ADISC: did:x%x flg:x%lx refcnt %d", 6083 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6084 6085 phba->fc_stat.elsXmitACC++; 6086 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6087 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6088 if (!elsiocb->ndlp) { 6089 lpfc_els_free_iocb(phba, elsiocb); 6090 return 1; 6091 } 6092 6093 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6094 if (rc == IOCB_ERROR) { 6095 lpfc_els_free_iocb(phba, elsiocb); 6096 lpfc_nlp_put(ndlp); 6097 return 1; 6098 } 6099 6100 return 0; 6101} 6102 6103/** 6104 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd 6105 * @vport: pointer to a virtual N_Port data structure. 6106 * @oldiocb: pointer to the original lpfc command iocb data structure. 6107 * @ndlp: pointer to a node-list data structure. 6108 * 6109 * This routine prepares and issues an Accept (ACC) response to Process 6110 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB 6111 * and invokes the lpfc_sli_issue_iocb() routine to send out the command. 6112 * 6113 * Note that the ndlp reference count will be incremented by 1 for holding the 6114 * ndlp and the reference to ndlp will be stored into the ndlp field of 6115 * the IOCB for the completion callback function to the PRLI Accept response 6116 * ELS IOCB command. 6117 * 6118 * Return code 6119 * 0 - Successfully issued acc prli response 6120 * 1 - Failed to issue acc prli response 6121 **/ 6122int 6123lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, 6124 struct lpfc_nodelist *ndlp) 6125{ 6126 struct lpfc_hba *phba = vport->phba; 6127 PRLI *npr; 6128 struct lpfc_nvme_prli *npr_nvme; 6129 lpfc_vpd_t *vpd; 6130 IOCB_t *icmd; 6131 IOCB_t *oldcmd; 6132 union lpfc_wqe128 *wqe; 6133 struct lpfc_iocbq *elsiocb; 6134 uint8_t *pcmd; 6135 uint16_t cmdsize; 6136 uint32_t prli_fc4_req, *req_payload; 6137 struct lpfc_dmabuf *req_buf; 6138 int rc; 6139 u32 elsrspcmd, ulp_context; 6140 6141 /* Need the incoming PRLI payload to determine if the ACC is for an 6142 * FC4 or NVME PRLI type. The PRLI type is at word 1. 6143 */ 6144 req_buf = oldiocb->cmd_dmabuf; 6145 req_payload = (((uint32_t *)req_buf->virt) + 1); 6146 6147 /* PRLI type payload is at byte 3 for FCP or NVME. */ 6148 prli_fc4_req = be32_to_cpu(*req_payload); 6149 prli_fc4_req = (prli_fc4_req >> 24) & 0xff; 6150 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6151 "6127 PRLI_ACC: Req Type x%x, Word1 x%08x\n", 6152 prli_fc4_req, *((uint32_t *)req_payload)); 6153 6154 if (prli_fc4_req == PRLI_FCP_TYPE) { 6155 cmdsize = sizeof(uint32_t) + sizeof(PRLI); 6156 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); 6157 } else if (prli_fc4_req == PRLI_NVME_TYPE) { 6158 cmdsize = sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli); 6159 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_NVMEPRLI & ~ELS_RSP_MASK)); 6160 } else { 6161 return 1; 6162 } 6163 6164 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 6165 ndlp->nlp_DID, elsrspcmd); 6166 if (!elsiocb) 6167 return 1; 6168 6169 if (phba->sli_rev == LPFC_SLI_REV4) { 6170 wqe = &elsiocb->wqe; 6171 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6172 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 6173 ulp_context = get_job_ulpcontext(phba, elsiocb); 6174 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6175 get_job_rcvoxid(phba, oldiocb)); 6176 } else { 6177 icmd = &elsiocb->iocb; 6178 oldcmd = &oldiocb->iocb; 6179 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6180 ulp_context = elsiocb->iocb.ulpContext; 6181 icmd->unsli3.rcvsli3.ox_id = 6182 oldcmd->unsli3.rcvsli3.ox_id; 6183 } 6184 6185 /* Xmit PRLI ACC response tag <ulpIoTag> */ 6186 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6187 "0131 Xmit PRLI ACC response tag x%x xri x%x, " 6188 "did x%x, nlp_flag x%lx, nlp_state x%x, rpi x%x\n", 6189 elsiocb->iotag, ulp_context, 6190 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 6191 ndlp->nlp_rpi); 6192 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6193 memset(pcmd, 0, cmdsize); 6194 6195 *((uint32_t *)(pcmd)) = elsrspcmd; 6196 pcmd += sizeof(uint32_t); 6197 6198 /* For PRLI, remainder of payload is PRLI parameter page */ 6199 vpd = &phba->vpd; 6200 6201 if (prli_fc4_req == PRLI_FCP_TYPE) { 6202 /* 6203 * If the remote port is a target and our firmware version 6204 * is 3.20 or later, set the following bits for FC-TAPE 6205 * support. 6206 */ 6207 npr = (PRLI *) pcmd; 6208 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 6209 (vpd->rev.feaLevelHigh >= 0x02)) { 6210 npr->ConfmComplAllowed = 1; 6211 npr->Retry = 1; 6212 npr->TaskRetryIdReq = 1; 6213 } 6214 npr->acceptRspCode = PRLI_REQ_EXECUTED; 6215 6216 /* Set image pair for complementary pairs only. */ 6217 if (ndlp->nlp_type & NLP_FCP_TARGET) 6218 npr->estabImagePair = 1; 6219 else 6220 npr->estabImagePair = 0; 6221 npr->readXferRdyDis = 1; 6222 npr->ConfmComplAllowed = 1; 6223 npr->prliType = PRLI_FCP_TYPE; 6224 npr->initiatorFunc = 1; 6225 6226 /* Xmit PRLI ACC response tag <ulpIoTag> */ 6227 lpfc_printf_vlog(vport, KERN_INFO, 6228 LOG_ELS | LOG_NODE | LOG_DISCOVERY, 6229 "6014 FCP issue PRLI ACC imgpair %d " 6230 "retry %d task %d\n", 6231 npr->estabImagePair, 6232 npr->Retry, npr->TaskRetryIdReq); 6233 6234 } else if (prli_fc4_req == PRLI_NVME_TYPE) { 6235 /* Respond with an NVME PRLI Type */ 6236 npr_nvme = (struct lpfc_nvme_prli *) pcmd; 6237 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE); 6238 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */ 6239 bf_set(prli_acc_rsp_code, npr_nvme, PRLI_REQ_EXECUTED); 6240 if (phba->nvmet_support) { 6241 bf_set(prli_tgt, npr_nvme, 1); 6242 bf_set(prli_disc, npr_nvme, 1); 6243 if (phba->cfg_nvme_enable_fb) { 6244 bf_set(prli_fba, npr_nvme, 1); 6245 6246 /* TBD. Target mode needs to post buffers 6247 * that support the configured first burst 6248 * byte size. 6249 */ 6250 bf_set(prli_fb_sz, npr_nvme, 6251 phba->cfg_nvmet_fb_size); 6252 } 6253 } else { 6254 bf_set(prli_init, npr_nvme, 1); 6255 } 6256 6257 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 6258 "6015 NVME issue PRLI ACC word1 x%08x " 6259 "word4 x%08x word5 x%08x flag x%lx, " 6260 "fcp_info x%x nlp_type x%x\n", 6261 npr_nvme->word1, npr_nvme->word4, 6262 npr_nvme->word5, ndlp->nlp_flag, 6263 ndlp->nlp_fcp_info, ndlp->nlp_type); 6264 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1); 6265 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4); 6266 npr_nvme->word5 = cpu_to_be32(npr_nvme->word5); 6267 } else 6268 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 6269 "6128 Unknown FC_TYPE x%x x%x ndlp x%06x\n", 6270 prli_fc4_req, ndlp->nlp_fc4_type, 6271 ndlp->nlp_DID); 6272 6273 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6274 "Issue ACC PRLI: did:x%x flg:x%lx", 6275 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6276 6277 phba->fc_stat.elsXmitACC++; 6278 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6279 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6280 if (!elsiocb->ndlp) { 6281 lpfc_els_free_iocb(phba, elsiocb); 6282 return 1; 6283 } 6284 6285 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6286 if (rc == IOCB_ERROR) { 6287 lpfc_els_free_iocb(phba, elsiocb); 6288 lpfc_nlp_put(ndlp); 6289 return 1; 6290 } 6291 6292 return 0; 6293} 6294 6295/** 6296 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command 6297 * @vport: pointer to a virtual N_Port data structure. 6298 * @format: rnid command format. 6299 * @oldiocb: pointer to the original lpfc command iocb data structure. 6300 * @ndlp: pointer to a node-list data structure. 6301 * 6302 * This routine issues a Request Node Identification Data (RNID) Accept 6303 * (ACC) response. It constructs the RNID ACC response command according to 6304 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to 6305 * issue the response. 6306 * 6307 * Note that the ndlp reference count will be incremented by 1 for holding the 6308 * ndlp and the reference to ndlp will be stored into the ndlp field of 6309 * the IOCB for the completion callback function. 6310 * 6311 * Return code 6312 * 0 - Successfully issued acc rnid response 6313 * 1 - Failed to issue acc rnid response 6314 **/ 6315static int 6316lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, 6317 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) 6318{ 6319 struct lpfc_hba *phba = vport->phba; 6320 RNID *rn; 6321 IOCB_t *icmd, *oldcmd; 6322 union lpfc_wqe128 *wqe; 6323 struct lpfc_iocbq *elsiocb; 6324 uint8_t *pcmd; 6325 uint16_t cmdsize; 6326 int rc; 6327 u32 ulp_context; 6328 6329 cmdsize = sizeof(uint32_t) + sizeof(uint32_t) 6330 + (2 * sizeof(struct lpfc_name)); 6331 if (format) 6332 cmdsize += sizeof(RNID_TOP_DISC); 6333 6334 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 6335 ndlp->nlp_DID, ELS_CMD_ACC); 6336 if (!elsiocb) 6337 return 1; 6338 6339 if (phba->sli_rev == LPFC_SLI_REV4) { 6340 wqe = &elsiocb->wqe; 6341 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6342 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 6343 ulp_context = get_job_ulpcontext(phba, elsiocb); 6344 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6345 get_job_rcvoxid(phba, oldiocb)); 6346 } else { 6347 icmd = &elsiocb->iocb; 6348 oldcmd = &oldiocb->iocb; 6349 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6350 ulp_context = elsiocb->iocb.ulpContext; 6351 icmd->unsli3.rcvsli3.ox_id = 6352 oldcmd->unsli3.rcvsli3.ox_id; 6353 } 6354 6355 /* Xmit RNID ACC response tag <ulpIoTag> */ 6356 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6357 "0132 Xmit RNID ACC response tag x%x xri x%x\n", 6358 elsiocb->iotag, ulp_context); 6359 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6360 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 6361 pcmd += sizeof(uint32_t); 6362 6363 memset(pcmd, 0, sizeof(RNID)); 6364 rn = (RNID *) (pcmd); 6365 rn->Format = format; 6366 rn->CommonLen = (2 * sizeof(struct lpfc_name)); 6367 memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); 6368 memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 6369 switch (format) { 6370 case 0: 6371 rn->SpecificLen = 0; 6372 break; 6373 case RNID_TOPOLOGY_DISC: 6374 rn->SpecificLen = sizeof(RNID_TOP_DISC); 6375 memcpy(&rn->un.topologyDisc.portName, 6376 &vport->fc_portname, sizeof(struct lpfc_name)); 6377 rn->un.topologyDisc.unitType = RNID_HBA; 6378 rn->un.topologyDisc.physPort = 0; 6379 rn->un.topologyDisc.attachedNodes = 0; 6380 break; 6381 default: 6382 rn->CommonLen = 0; 6383 rn->SpecificLen = 0; 6384 break; 6385 } 6386 6387 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6388 "Issue ACC RNID: did:x%x flg:x%lx refcnt %d", 6389 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6390 6391 phba->fc_stat.elsXmitACC++; 6392 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6393 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6394 if (!elsiocb->ndlp) { 6395 lpfc_els_free_iocb(phba, elsiocb); 6396 return 1; 6397 } 6398 6399 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6400 if (rc == IOCB_ERROR) { 6401 lpfc_els_free_iocb(phba, elsiocb); 6402 lpfc_nlp_put(ndlp); 6403 return 1; 6404 } 6405 6406 return 0; 6407} 6408 6409/** 6410 * lpfc_els_clear_rrq - Clear the rq that this rrq describes. 6411 * @vport: pointer to a virtual N_Port data structure. 6412 * @iocb: pointer to the lpfc command iocb data structure. 6413 * @ndlp: pointer to a node-list data structure. 6414 * 6415 * Return 6416 **/ 6417static void 6418lpfc_els_clear_rrq(struct lpfc_vport *vport, 6419 struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp) 6420{ 6421 struct lpfc_hba *phba = vport->phba; 6422 uint8_t *pcmd; 6423 struct RRQ *rrq; 6424 uint16_t rxid; 6425 uint16_t xri; 6426 struct lpfc_node_rrq *prrq; 6427 6428 6429 pcmd = (uint8_t *)iocb->cmd_dmabuf->virt; 6430 pcmd += sizeof(uint32_t); 6431 rrq = (struct RRQ *)pcmd; 6432 rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg); 6433 rxid = bf_get(rrq_rxid, rrq); 6434 6435 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6436 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x" 6437 " x%x x%x\n", 6438 be32_to_cpu(bf_get(rrq_did, rrq)), 6439 bf_get(rrq_oxid, rrq), 6440 rxid, 6441 get_wqe_reqtag(iocb), 6442 get_job_ulpcontext(phba, iocb)); 6443 6444 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6445 "Clear RRQ: did:x%x flg:x%lx exchg:x%.08x", 6446 ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg); 6447 if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq))) 6448 xri = bf_get(rrq_oxid, rrq); 6449 else 6450 xri = rxid; 6451 prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID); 6452 if (prrq) 6453 lpfc_clr_rrq_active(phba, xri, prrq); 6454 return; 6455} 6456 6457/** 6458 * lpfc_els_rsp_echo_acc - Issue echo acc response 6459 * @vport: pointer to a virtual N_Port data structure. 6460 * @data: pointer to echo data to return in the accept. 6461 * @oldiocb: pointer to the original lpfc command iocb data structure. 6462 * @ndlp: pointer to a node-list data structure. 6463 * 6464 * Return code 6465 * 0 - Successfully issued acc echo response 6466 * 1 - Failed to issue acc echo response 6467 **/ 6468static int 6469lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data, 6470 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) 6471{ 6472 struct lpfc_hba *phba = vport->phba; 6473 IOCB_t *icmd, *oldcmd; 6474 union lpfc_wqe128 *wqe; 6475 struct lpfc_iocbq *elsiocb; 6476 uint8_t *pcmd; 6477 uint16_t cmdsize; 6478 int rc; 6479 u32 ulp_context; 6480 6481 if (phba->sli_rev == LPFC_SLI_REV4) 6482 cmdsize = oldiocb->wcqe_cmpl.total_data_placed; 6483 else 6484 cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len; 6485 6486 /* The accumulated length can exceed the BPL_SIZE. For 6487 * now, use this as the limit 6488 */ 6489 if (cmdsize > LPFC_BPL_SIZE) 6490 cmdsize = LPFC_BPL_SIZE; 6491 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 6492 ndlp->nlp_DID, ELS_CMD_ACC); 6493 if (!elsiocb) 6494 return 1; 6495 6496 if (phba->sli_rev == LPFC_SLI_REV4) { 6497 wqe = &elsiocb->wqe; 6498 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6499 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 6500 ulp_context = get_job_ulpcontext(phba, elsiocb); 6501 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6502 get_job_rcvoxid(phba, oldiocb)); 6503 } else { 6504 icmd = &elsiocb->iocb; 6505 oldcmd = &oldiocb->iocb; 6506 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6507 ulp_context = elsiocb->iocb.ulpContext; 6508 icmd->unsli3.rcvsli3.ox_id = 6509 oldcmd->unsli3.rcvsli3.ox_id; 6510 } 6511 6512 /* Xmit ECHO ACC response tag <ulpIoTag> */ 6513 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6514 "2876 Xmit ECHO ACC response tag x%x xri x%x\n", 6515 elsiocb->iotag, ulp_context); 6516 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6517 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 6518 pcmd += sizeof(uint32_t); 6519 memcpy(pcmd, data, cmdsize - sizeof(uint32_t)); 6520 6521 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6522 "Issue ACC ECHO: did:x%x flg:x%lx refcnt %d", 6523 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6524 6525 phba->fc_stat.elsXmitACC++; 6526 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6527 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6528 if (!elsiocb->ndlp) { 6529 lpfc_els_free_iocb(phba, elsiocb); 6530 return 1; 6531 } 6532 6533 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6534 if (rc == IOCB_ERROR) { 6535 lpfc_els_free_iocb(phba, elsiocb); 6536 lpfc_nlp_put(ndlp); 6537 return 1; 6538 } 6539 6540 return 0; 6541} 6542 6543/** 6544 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport 6545 * @vport: pointer to a host virtual N_Port data structure. 6546 * 6547 * This routine issues Address Discover (ADISC) ELS commands to those 6548 * N_Ports which are in node port recovery state and ADISC has not been issued 6549 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the 6550 * lpfc_issue_els_adisc() routine, the per @vport number of discover count 6551 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a 6552 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will 6553 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC 6554 * IOCBs quit for later pick up. On the other hand, after walking through 6555 * all the ndlps with the @vport and there is none ADISC IOCB issued, the 6556 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is 6557 * no more ADISC need to be sent. 6558 * 6559 * Return code 6560 * The number of N_Ports with adisc issued. 6561 **/ 6562int 6563lpfc_els_disc_adisc(struct lpfc_vport *vport) 6564{ 6565 struct lpfc_nodelist *ndlp, *next_ndlp; 6566 int sentadisc = 0; 6567 6568 /* go thru NPR nodes and issue any remaining ELS ADISCs */ 6569 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 6570 6571 if (ndlp->nlp_state != NLP_STE_NPR_NODE || 6572 !test_bit(NLP_NPR_ADISC, &ndlp->nlp_flag)) 6573 continue; 6574 6575 clear_bit(NLP_NPR_ADISC, &ndlp->nlp_flag); 6576 6577 if (!test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 6578 /* This node was marked for ADISC but was not picked 6579 * for discovery. This is possible if the node was 6580 * missing in gidft response. 6581 * 6582 * At time of marking node for ADISC, we skipped unreg 6583 * from backend 6584 */ 6585 lpfc_nlp_unreg_node(vport, ndlp); 6586 lpfc_unreg_rpi(vport, ndlp); 6587 continue; 6588 } 6589 6590 ndlp->nlp_prev_state = ndlp->nlp_state; 6591 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 6592 lpfc_issue_els_adisc(vport, ndlp, 0); 6593 sentadisc++; 6594 vport->num_disc_nodes++; 6595 if (vport->num_disc_nodes >= 6596 vport->cfg_discovery_threads) { 6597 set_bit(FC_NLP_MORE, &vport->fc_flag); 6598 break; 6599 } 6600 6601 } 6602 if (sentadisc == 0) 6603 clear_bit(FC_NLP_MORE, &vport->fc_flag); 6604 return sentadisc; 6605} 6606 6607/** 6608 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc 6609 * @vport: pointer to a host virtual N_Port data structure. 6610 * 6611 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports 6612 * which are in node port recovery state, with a @vport. Each time an ELS 6613 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine, 6614 * the per @vport number of discover count (num_disc_nodes) shall be 6615 * incremented. If the num_disc_nodes reaches a pre-configured threshold 6616 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE 6617 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for 6618 * later pick up. On the other hand, after walking through all the ndlps with 6619 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag 6620 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC 6621 * PLOGI need to be sent. 6622 * 6623 * Return code 6624 * The number of N_Ports with plogi issued. 6625 **/ 6626int 6627lpfc_els_disc_plogi(struct lpfc_vport *vport) 6628{ 6629 struct lpfc_nodelist *ndlp, *next_ndlp; 6630 int sentplogi = 0; 6631 6632 /* go thru NPR nodes and issue any remaining ELS PLOGIs */ 6633 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 6634 if (ndlp->nlp_state == NLP_STE_NPR_NODE && 6635 test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag) && 6636 !test_bit(NLP_DELAY_TMO, &ndlp->nlp_flag) && 6637 !test_bit(NLP_NPR_ADISC, &ndlp->nlp_flag)) { 6638 ndlp->nlp_prev_state = ndlp->nlp_state; 6639 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 6640 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 6641 sentplogi++; 6642 vport->num_disc_nodes++; 6643 if (vport->num_disc_nodes >= 6644 vport->cfg_discovery_threads) { 6645 set_bit(FC_NLP_MORE, &vport->fc_flag); 6646 break; 6647 } 6648 } 6649 } 6650 6651 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 6652 "6452 Discover PLOGI %d flag x%lx\n", 6653 sentplogi, vport->fc_flag); 6654 6655 if (sentplogi) 6656 lpfc_set_disctmo(vport); 6657 else 6658 clear_bit(FC_NLP_MORE, &vport->fc_flag); 6659 return sentplogi; 6660} 6661 6662static uint32_t 6663lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc, 6664 uint32_t word0) 6665{ 6666 6667 desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG); 6668 desc->payload.els_req = word0; 6669 desc->length = cpu_to_be32(sizeof(desc->payload)); 6670 6671 return sizeof(struct fc_rdp_link_service_desc); 6672} 6673 6674static uint32_t 6675lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc, 6676 uint8_t *page_a0, uint8_t *page_a2) 6677{ 6678 uint16_t wavelength; 6679 uint16_t temperature; 6680 uint16_t rx_power; 6681 uint16_t tx_bias; 6682 uint16_t tx_power; 6683 uint16_t vcc; 6684 uint16_t flag = 0; 6685 struct sff_trasnceiver_codes_byte4 *trasn_code_byte4; 6686 struct sff_trasnceiver_codes_byte5 *trasn_code_byte5; 6687 6688 desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG); 6689 6690 trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *) 6691 &page_a0[SSF_TRANSCEIVER_CODE_B4]; 6692 trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *) 6693 &page_a0[SSF_TRANSCEIVER_CODE_B5]; 6694 6695 if ((trasn_code_byte4->fc_sw_laser) || 6696 (trasn_code_byte5->fc_sw_laser_sl) || 6697 (trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */ 6698 flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT); 6699 } else if (trasn_code_byte4->fc_lw_laser) { 6700 wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) | 6701 page_a0[SSF_WAVELENGTH_B0]; 6702 if (wavelength == SFP_WAVELENGTH_LC1310) 6703 flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT; 6704 if (wavelength == SFP_WAVELENGTH_LL1550) 6705 flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT; 6706 } 6707 /* check if its SFP+ */ 6708 flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ? 6709 SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN) 6710 << SFP_FLAG_CT_SHIFT; 6711 6712 /* check if its OPTICAL */ 6713 flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ? 6714 SFP_FLAG_IS_OPTICAL_PORT : 0) 6715 << SFP_FLAG_IS_OPTICAL_SHIFT; 6716 6717 temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 | 6718 page_a2[SFF_TEMPERATURE_B0]); 6719 vcc = (page_a2[SFF_VCC_B1] << 8 | 6720 page_a2[SFF_VCC_B0]); 6721 tx_power = (page_a2[SFF_TXPOWER_B1] << 8 | 6722 page_a2[SFF_TXPOWER_B0]); 6723 tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 | 6724 page_a2[SFF_TX_BIAS_CURRENT_B0]); 6725 rx_power = (page_a2[SFF_RXPOWER_B1] << 8 | 6726 page_a2[SFF_RXPOWER_B0]); 6727 desc->sfp_info.temperature = cpu_to_be16(temperature); 6728 desc->sfp_info.rx_power = cpu_to_be16(rx_power); 6729 desc->sfp_info.tx_bias = cpu_to_be16(tx_bias); 6730 desc->sfp_info.tx_power = cpu_to_be16(tx_power); 6731 desc->sfp_info.vcc = cpu_to_be16(vcc); 6732 6733 desc->sfp_info.flags = cpu_to_be16(flag); 6734 desc->length = cpu_to_be32(sizeof(desc->sfp_info)); 6735 6736 return sizeof(struct fc_rdp_sfp_desc); 6737} 6738 6739static uint32_t 6740lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc, 6741 READ_LNK_VAR *stat) 6742{ 6743 uint32_t type; 6744 6745 desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG); 6746 6747 type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT; 6748 6749 desc->info.port_type = cpu_to_be32(type); 6750 6751 desc->info.link_status.link_failure_cnt = 6752 cpu_to_be32(stat->linkFailureCnt); 6753 desc->info.link_status.loss_of_synch_cnt = 6754 cpu_to_be32(stat->lossSyncCnt); 6755 desc->info.link_status.loss_of_signal_cnt = 6756 cpu_to_be32(stat->lossSignalCnt); 6757 desc->info.link_status.primitive_seq_proto_err = 6758 cpu_to_be32(stat->primSeqErrCnt); 6759 desc->info.link_status.invalid_trans_word = 6760 cpu_to_be32(stat->invalidXmitWord); 6761 desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt); 6762 6763 desc->length = cpu_to_be32(sizeof(desc->info)); 6764 6765 return sizeof(struct fc_rdp_link_error_status_desc); 6766} 6767 6768static uint32_t 6769lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat, 6770 struct lpfc_vport *vport) 6771{ 6772 uint32_t bbCredit; 6773 6774 desc->tag = cpu_to_be32(RDP_BBC_DESC_TAG); 6775 6776 bbCredit = vport->fc_sparam.cmn.bbCreditLsb | 6777 (vport->fc_sparam.cmn.bbCreditMsb << 8); 6778 desc->bbc_info.port_bbc = cpu_to_be32(bbCredit); 6779 if (vport->phba->fc_topology != LPFC_TOPOLOGY_LOOP) { 6780 bbCredit = vport->phba->fc_fabparam.cmn.bbCreditLsb | 6781 (vport->phba->fc_fabparam.cmn.bbCreditMsb << 8); 6782 desc->bbc_info.attached_port_bbc = cpu_to_be32(bbCredit); 6783 } else { 6784 desc->bbc_info.attached_port_bbc = 0; 6785 } 6786 6787 desc->bbc_info.rtt = 0; 6788 desc->length = cpu_to_be32(sizeof(desc->bbc_info)); 6789 6790 return sizeof(struct fc_rdp_bbc_desc); 6791} 6792 6793static uint32_t 6794lpfc_rdp_res_oed_temp_desc(struct lpfc_hba *phba, 6795 struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2) 6796{ 6797 uint32_t flags = 0; 6798 6799 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6800 6801 desc->oed_info.hi_alarm = page_a2[SSF_TEMP_HIGH_ALARM]; 6802 desc->oed_info.lo_alarm = page_a2[SSF_TEMP_LOW_ALARM]; 6803 desc->oed_info.hi_warning = page_a2[SSF_TEMP_HIGH_WARNING]; 6804 desc->oed_info.lo_warning = page_a2[SSF_TEMP_LOW_WARNING]; 6805 6806 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TEMPERATURE) 6807 flags |= RDP_OET_HIGH_ALARM; 6808 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TEMPERATURE) 6809 flags |= RDP_OET_LOW_ALARM; 6810 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TEMPERATURE) 6811 flags |= RDP_OET_HIGH_WARNING; 6812 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TEMPERATURE) 6813 flags |= RDP_OET_LOW_WARNING; 6814 6815 flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT); 6816 desc->oed_info.function_flags = cpu_to_be32(flags); 6817 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6818 return sizeof(struct fc_rdp_oed_sfp_desc); 6819} 6820 6821static uint32_t 6822lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba *phba, 6823 struct fc_rdp_oed_sfp_desc *desc, 6824 uint8_t *page_a2) 6825{ 6826 uint32_t flags = 0; 6827 6828 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6829 6830 desc->oed_info.hi_alarm = page_a2[SSF_VOLTAGE_HIGH_ALARM]; 6831 desc->oed_info.lo_alarm = page_a2[SSF_VOLTAGE_LOW_ALARM]; 6832 desc->oed_info.hi_warning = page_a2[SSF_VOLTAGE_HIGH_WARNING]; 6833 desc->oed_info.lo_warning = page_a2[SSF_VOLTAGE_LOW_WARNING]; 6834 6835 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_VOLTAGE) 6836 flags |= RDP_OET_HIGH_ALARM; 6837 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_VOLTAGE) 6838 flags |= RDP_OET_LOW_ALARM; 6839 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_VOLTAGE) 6840 flags |= RDP_OET_HIGH_WARNING; 6841 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_VOLTAGE) 6842 flags |= RDP_OET_LOW_WARNING; 6843 6844 flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT); 6845 desc->oed_info.function_flags = cpu_to_be32(flags); 6846 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6847 return sizeof(struct fc_rdp_oed_sfp_desc); 6848} 6849 6850static uint32_t 6851lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba *phba, 6852 struct fc_rdp_oed_sfp_desc *desc, 6853 uint8_t *page_a2) 6854{ 6855 uint32_t flags = 0; 6856 6857 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6858 6859 desc->oed_info.hi_alarm = page_a2[SSF_BIAS_HIGH_ALARM]; 6860 desc->oed_info.lo_alarm = page_a2[SSF_BIAS_LOW_ALARM]; 6861 desc->oed_info.hi_warning = page_a2[SSF_BIAS_HIGH_WARNING]; 6862 desc->oed_info.lo_warning = page_a2[SSF_BIAS_LOW_WARNING]; 6863 6864 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXBIAS) 6865 flags |= RDP_OET_HIGH_ALARM; 6866 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXBIAS) 6867 flags |= RDP_OET_LOW_ALARM; 6868 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXBIAS) 6869 flags |= RDP_OET_HIGH_WARNING; 6870 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXBIAS) 6871 flags |= RDP_OET_LOW_WARNING; 6872 6873 flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT); 6874 desc->oed_info.function_flags = cpu_to_be32(flags); 6875 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6876 return sizeof(struct fc_rdp_oed_sfp_desc); 6877} 6878 6879static uint32_t 6880lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba *phba, 6881 struct fc_rdp_oed_sfp_desc *desc, 6882 uint8_t *page_a2) 6883{ 6884 uint32_t flags = 0; 6885 6886 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6887 6888 desc->oed_info.hi_alarm = page_a2[SSF_TXPOWER_HIGH_ALARM]; 6889 desc->oed_info.lo_alarm = page_a2[SSF_TXPOWER_LOW_ALARM]; 6890 desc->oed_info.hi_warning = page_a2[SSF_TXPOWER_HIGH_WARNING]; 6891 desc->oed_info.lo_warning = page_a2[SSF_TXPOWER_LOW_WARNING]; 6892 6893 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXPOWER) 6894 flags |= RDP_OET_HIGH_ALARM; 6895 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXPOWER) 6896 flags |= RDP_OET_LOW_ALARM; 6897 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXPOWER) 6898 flags |= RDP_OET_HIGH_WARNING; 6899 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXPOWER) 6900 flags |= RDP_OET_LOW_WARNING; 6901 6902 flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT); 6903 desc->oed_info.function_flags = cpu_to_be32(flags); 6904 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6905 return sizeof(struct fc_rdp_oed_sfp_desc); 6906} 6907 6908 6909static uint32_t 6910lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba *phba, 6911 struct fc_rdp_oed_sfp_desc *desc, 6912 uint8_t *page_a2) 6913{ 6914 uint32_t flags = 0; 6915 6916 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6917 6918 desc->oed_info.hi_alarm = page_a2[SSF_RXPOWER_HIGH_ALARM]; 6919 desc->oed_info.lo_alarm = page_a2[SSF_RXPOWER_LOW_ALARM]; 6920 desc->oed_info.hi_warning = page_a2[SSF_RXPOWER_HIGH_WARNING]; 6921 desc->oed_info.lo_warning = page_a2[SSF_RXPOWER_LOW_WARNING]; 6922 6923 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_RXPOWER) 6924 flags |= RDP_OET_HIGH_ALARM; 6925 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_RXPOWER) 6926 flags |= RDP_OET_LOW_ALARM; 6927 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_RXPOWER) 6928 flags |= RDP_OET_HIGH_WARNING; 6929 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_RXPOWER) 6930 flags |= RDP_OET_LOW_WARNING; 6931 6932 flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT); 6933 desc->oed_info.function_flags = cpu_to_be32(flags); 6934 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6935 return sizeof(struct fc_rdp_oed_sfp_desc); 6936} 6937 6938static uint32_t 6939lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc, 6940 uint8_t *page_a0, struct lpfc_vport *vport) 6941{ 6942 desc->tag = cpu_to_be32(RDP_OPD_DESC_TAG); 6943 memcpy(desc->opd_info.vendor_name, &page_a0[SSF_VENDOR_NAME], 16); 6944 memcpy(desc->opd_info.model_number, &page_a0[SSF_VENDOR_PN], 16); 6945 memcpy(desc->opd_info.serial_number, &page_a0[SSF_VENDOR_SN], 16); 6946 memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 4); 6947 memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8); 6948 desc->length = cpu_to_be32(sizeof(desc->opd_info)); 6949 return sizeof(struct fc_rdp_opd_sfp_desc); 6950} 6951 6952static uint32_t 6953lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat) 6954{ 6955 if (bf_get(lpfc_read_link_stat_gec2, stat) == 0) 6956 return 0; 6957 desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG); 6958 6959 desc->info.CorrectedBlocks = 6960 cpu_to_be32(stat->fecCorrBlkCount); 6961 desc->info.UncorrectableBlocks = 6962 cpu_to_be32(stat->fecUncorrBlkCount); 6963 6964 desc->length = cpu_to_be32(sizeof(desc->info)); 6965 6966 return sizeof(struct fc_fec_rdp_desc); 6967} 6968 6969static uint32_t 6970lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba) 6971{ 6972 uint16_t rdp_cap = 0; 6973 uint16_t rdp_speed; 6974 6975 desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG); 6976 6977 switch (phba->fc_linkspeed) { 6978 case LPFC_LINK_SPEED_1GHZ: 6979 rdp_speed = RDP_PS_1GB; 6980 break; 6981 case LPFC_LINK_SPEED_2GHZ: 6982 rdp_speed = RDP_PS_2GB; 6983 break; 6984 case LPFC_LINK_SPEED_4GHZ: 6985 rdp_speed = RDP_PS_4GB; 6986 break; 6987 case LPFC_LINK_SPEED_8GHZ: 6988 rdp_speed = RDP_PS_8GB; 6989 break; 6990 case LPFC_LINK_SPEED_10GHZ: 6991 rdp_speed = RDP_PS_10GB; 6992 break; 6993 case LPFC_LINK_SPEED_16GHZ: 6994 rdp_speed = RDP_PS_16GB; 6995 break; 6996 case LPFC_LINK_SPEED_32GHZ: 6997 rdp_speed = RDP_PS_32GB; 6998 break; 6999 case LPFC_LINK_SPEED_64GHZ: 7000 rdp_speed = RDP_PS_64GB; 7001 break; 7002 case LPFC_LINK_SPEED_128GHZ: 7003 rdp_speed = RDP_PS_128GB; 7004 break; 7005 case LPFC_LINK_SPEED_256GHZ: 7006 rdp_speed = RDP_PS_256GB; 7007 break; 7008 default: 7009 rdp_speed = RDP_PS_UNKNOWN; 7010 break; 7011 } 7012 7013 desc->info.port_speed.speed = cpu_to_be16(rdp_speed); 7014 7015 if (phba->lmt & LMT_256Gb) 7016 rdp_cap |= RDP_PS_256GB; 7017 if (phba->lmt & LMT_128Gb) 7018 rdp_cap |= RDP_PS_128GB; 7019 if (phba->lmt & LMT_64Gb) 7020 rdp_cap |= RDP_PS_64GB; 7021 if (phba->lmt & LMT_32Gb) 7022 rdp_cap |= RDP_PS_32GB; 7023 if (phba->lmt & LMT_16Gb) 7024 rdp_cap |= RDP_PS_16GB; 7025 if (phba->lmt & LMT_10Gb) 7026 rdp_cap |= RDP_PS_10GB; 7027 if (phba->lmt & LMT_8Gb) 7028 rdp_cap |= RDP_PS_8GB; 7029 if (phba->lmt & LMT_4Gb) 7030 rdp_cap |= RDP_PS_4GB; 7031 if (phba->lmt & LMT_2Gb) 7032 rdp_cap |= RDP_PS_2GB; 7033 if (phba->lmt & LMT_1Gb) 7034 rdp_cap |= RDP_PS_1GB; 7035 7036 if (rdp_cap == 0) 7037 rdp_cap = RDP_CAP_UNKNOWN; 7038 if (phba->cfg_link_speed != LPFC_USER_LINK_SPEED_AUTO) 7039 rdp_cap |= RDP_CAP_USER_CONFIGURED; 7040 7041 desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap); 7042 desc->length = cpu_to_be32(sizeof(desc->info)); 7043 return sizeof(struct fc_rdp_port_speed_desc); 7044} 7045 7046static uint32_t 7047lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc, 7048 struct lpfc_vport *vport) 7049{ 7050 7051 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG); 7052 7053 memcpy(desc->port_names.wwnn, &vport->fc_nodename, 7054 sizeof(desc->port_names.wwnn)); 7055 7056 memcpy(desc->port_names.wwpn, &vport->fc_portname, 7057 sizeof(desc->port_names.wwpn)); 7058 7059 desc->length = cpu_to_be32(sizeof(desc->port_names)); 7060 return sizeof(struct fc_rdp_port_name_desc); 7061} 7062 7063static uint32_t 7064lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc, 7065 struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 7066{ 7067 7068 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG); 7069 if (test_bit(FC_FABRIC, &vport->fc_flag)) { 7070 memcpy(desc->port_names.wwnn, &vport->fabric_nodename, 7071 sizeof(desc->port_names.wwnn)); 7072 7073 memcpy(desc->port_names.wwpn, &vport->fabric_portname, 7074 sizeof(desc->port_names.wwpn)); 7075 } else { /* Point to Point */ 7076 memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename, 7077 sizeof(desc->port_names.wwnn)); 7078 7079 memcpy(desc->port_names.wwpn, &ndlp->nlp_portname, 7080 sizeof(desc->port_names.wwpn)); 7081 } 7082 7083 desc->length = cpu_to_be32(sizeof(desc->port_names)); 7084 return sizeof(struct fc_rdp_port_name_desc); 7085} 7086 7087static void 7088lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context, 7089 int status) 7090{ 7091 struct lpfc_nodelist *ndlp = rdp_context->ndlp; 7092 struct lpfc_vport *vport = ndlp->vport; 7093 struct lpfc_iocbq *elsiocb; 7094 struct ulp_bde64 *bpl; 7095 IOCB_t *icmd; 7096 union lpfc_wqe128 *wqe; 7097 uint8_t *pcmd; 7098 struct ls_rjt *stat; 7099 struct fc_rdp_res_frame *rdp_res; 7100 uint32_t cmdsize, len; 7101 uint16_t *flag_ptr; 7102 int rc; 7103 u32 ulp_context; 7104 7105 if (status != SUCCESS) 7106 goto error; 7107 7108 /* This will change once we know the true size of the RDP payload */ 7109 cmdsize = sizeof(struct fc_rdp_res_frame); 7110 7111 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, 7112 lpfc_max_els_tries, rdp_context->ndlp, 7113 rdp_context->ndlp->nlp_DID, ELS_CMD_ACC); 7114 if (!elsiocb) 7115 goto free_rdp_context; 7116 7117 ulp_context = get_job_ulpcontext(phba, elsiocb); 7118 if (phba->sli_rev == LPFC_SLI_REV4) { 7119 wqe = &elsiocb->wqe; 7120 /* ox-id of the frame */ 7121 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7122 rdp_context->ox_id); 7123 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 7124 rdp_context->rx_id); 7125 } else { 7126 icmd = &elsiocb->iocb; 7127 icmd->ulpContext = rdp_context->rx_id; 7128 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id; 7129 } 7130 7131 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 7132 "2171 Xmit RDP response tag x%x xri x%x, " 7133 "did x%x, nlp_flag x%lx, nlp_state x%x, rpi x%x", 7134 elsiocb->iotag, ulp_context, 7135 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 7136 ndlp->nlp_rpi); 7137 rdp_res = (struct fc_rdp_res_frame *)elsiocb->cmd_dmabuf->virt; 7138 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7139 memset(pcmd, 0, sizeof(struct fc_rdp_res_frame)); 7140 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 7141 7142 /* Update Alarm and Warning */ 7143 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_ALARM_FLAGS); 7144 phba->sfp_alarm |= *flag_ptr; 7145 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_WARNING_FLAGS); 7146 phba->sfp_warning |= *flag_ptr; 7147 7148 /* For RDP payload */ 7149 len = 8; 7150 len += lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc *) 7151 (len + pcmd), ELS_CMD_RDP); 7152 7153 len += lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc *)(len + pcmd), 7154 rdp_context->page_a0, rdp_context->page_a2); 7155 len += lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc *)(len + pcmd), 7156 phba); 7157 len += lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc *) 7158 (len + pcmd), &rdp_context->link_stat); 7159 len += lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc *) 7160 (len + pcmd), vport); 7161 len += lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc *) 7162 (len + pcmd), vport, ndlp); 7163 len += lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc *)(len + pcmd), 7164 &rdp_context->link_stat); 7165 len += lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc *)(len + pcmd), 7166 &rdp_context->link_stat, vport); 7167 len += lpfc_rdp_res_oed_temp_desc(phba, 7168 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7169 rdp_context->page_a2); 7170 len += lpfc_rdp_res_oed_voltage_desc(phba, 7171 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7172 rdp_context->page_a2); 7173 len += lpfc_rdp_res_oed_txbias_desc(phba, 7174 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7175 rdp_context->page_a2); 7176 len += lpfc_rdp_res_oed_txpower_desc(phba, 7177 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7178 rdp_context->page_a2); 7179 len += lpfc_rdp_res_oed_rxpower_desc(phba, 7180 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7181 rdp_context->page_a2); 7182 len += lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc *)(len + pcmd), 7183 rdp_context->page_a0, vport); 7184 7185 rdp_res->length = cpu_to_be32(len - 8); 7186 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7187 7188 /* Now that we know the true size of the payload, update the BPL */ 7189 bpl = (struct ulp_bde64 *)elsiocb->bpl_dmabuf->virt; 7190 bpl->tus.f.bdeSize = len; 7191 bpl->tus.f.bdeFlags = 0; 7192 bpl->tus.w = le32_to_cpu(bpl->tus.w); 7193 7194 phba->fc_stat.elsXmitACC++; 7195 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7196 if (!elsiocb->ndlp) { 7197 lpfc_els_free_iocb(phba, elsiocb); 7198 goto free_rdp_context; 7199 } 7200 7201 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7202 if (rc == IOCB_ERROR) { 7203 lpfc_els_free_iocb(phba, elsiocb); 7204 lpfc_nlp_put(ndlp); 7205 } 7206 7207 goto free_rdp_context; 7208 7209error: 7210 cmdsize = 2 * sizeof(uint32_t); 7211 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries, 7212 ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT); 7213 if (!elsiocb) 7214 goto free_rdp_context; 7215 7216 if (phba->sli_rev == LPFC_SLI_REV4) { 7217 wqe = &elsiocb->wqe; 7218 /* ox-id of the frame */ 7219 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7220 rdp_context->ox_id); 7221 bf_set(wqe_ctxt_tag, 7222 &wqe->xmit_els_rsp.wqe_com, 7223 rdp_context->rx_id); 7224 } else { 7225 icmd = &elsiocb->iocb; 7226 icmd->ulpContext = rdp_context->rx_id; 7227 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id; 7228 } 7229 7230 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7231 7232 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; 7233 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t)); 7234 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 7235 7236 phba->fc_stat.elsXmitLSRJT++; 7237 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7238 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7239 if (!elsiocb->ndlp) { 7240 lpfc_els_free_iocb(phba, elsiocb); 7241 goto free_rdp_context; 7242 } 7243 7244 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7245 if (rc == IOCB_ERROR) { 7246 lpfc_els_free_iocb(phba, elsiocb); 7247 lpfc_nlp_put(ndlp); 7248 } 7249 7250free_rdp_context: 7251 /* This reference put is for the original unsolicited RDP. If the 7252 * prep failed, there is no reference to remove. 7253 */ 7254 lpfc_nlp_put(ndlp); 7255 kfree(rdp_context); 7256} 7257 7258static int 7259lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context) 7260{ 7261 LPFC_MBOXQ_t *mbox = NULL; 7262 int rc; 7263 7264 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7265 if (!mbox) { 7266 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS, 7267 "7105 failed to allocate mailbox memory"); 7268 return 1; 7269 } 7270 7271 if (lpfc_sli4_dump_page_a0(phba, mbox)) 7272 goto rdp_fail; 7273 mbox->vport = rdp_context->ndlp->vport; 7274 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0; 7275 mbox->ctx_u.rdp = rdp_context; 7276 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 7277 if (rc == MBX_NOT_FINISHED) { 7278 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 7279 return 1; 7280 } 7281 7282 return 0; 7283 7284rdp_fail: 7285 mempool_free(mbox, phba->mbox_mem_pool); 7286 return 1; 7287} 7288 7289int lpfc_get_sfp_info_wait(struct lpfc_hba *phba, 7290 struct lpfc_rdp_context *rdp_context) 7291{ 7292 LPFC_MBOXQ_t *mbox = NULL; 7293 int rc; 7294 struct lpfc_dmabuf *mp; 7295 struct lpfc_dmabuf *mpsave; 7296 void *virt; 7297 MAILBOX_t *mb; 7298 7299 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7300 if (!mbox) { 7301 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS, 7302 "7205 failed to allocate mailbox memory"); 7303 return 1; 7304 } 7305 7306 if (lpfc_sli4_dump_page_a0(phba, mbox)) 7307 goto sfp_fail; 7308 mp = mbox->ctx_buf; 7309 mpsave = mp; 7310 virt = mp->virt; 7311 if (phba->sli_rev < LPFC_SLI_REV4) { 7312 mb = &mbox->u.mb; 7313 mb->un.varDmp.cv = 1; 7314 mb->un.varDmp.co = 1; 7315 mb->un.varWords[2] = 0; 7316 mb->un.varWords[3] = DMP_SFF_PAGE_A0_SIZE / 4; 7317 mb->un.varWords[4] = 0; 7318 mb->un.varWords[5] = 0; 7319 mb->un.varWords[6] = 0; 7320 mb->un.varWords[7] = 0; 7321 mb->un.varWords[8] = 0; 7322 mb->un.varWords[9] = 0; 7323 mb->un.varWords[10] = 0; 7324 mbox->in_ext_byte_len = DMP_SFF_PAGE_A0_SIZE; 7325 mbox->out_ext_byte_len = DMP_SFF_PAGE_A0_SIZE; 7326 mbox->mbox_offset_word = 5; 7327 mbox->ext_buf = virt; 7328 } else { 7329 bf_set(lpfc_mbx_memory_dump_type3_length, 7330 &mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A0_SIZE); 7331 mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys); 7332 mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys); 7333 } 7334 mbox->vport = phba->pport; 7335 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_SLI4_CONFIG_TMO); 7336 if (rc == MBX_NOT_FINISHED) { 7337 rc = 1; 7338 goto error; 7339 } 7340 if (rc == MBX_TIMEOUT) 7341 goto error; 7342 if (phba->sli_rev == LPFC_SLI_REV4) 7343 mp = mbox->ctx_buf; 7344 else 7345 mp = mpsave; 7346 7347 if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) { 7348 rc = 1; 7349 goto error; 7350 } 7351 7352 lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a0, 7353 DMP_SFF_PAGE_A0_SIZE); 7354 7355 memset(mbox, 0, sizeof(*mbox)); 7356 memset(mp->virt, 0, DMP_SFF_PAGE_A2_SIZE); 7357 INIT_LIST_HEAD(&mp->list); 7358 7359 /* save address for completion */ 7360 mbox->ctx_buf = mp; 7361 mbox->vport = phba->pport; 7362 7363 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_DUMP_MEMORY); 7364 bf_set(lpfc_mbx_memory_dump_type3_type, 7365 &mbox->u.mqe.un.mem_dump_type3, DMP_LMSD); 7366 bf_set(lpfc_mbx_memory_dump_type3_link, 7367 &mbox->u.mqe.un.mem_dump_type3, phba->sli4_hba.physical_port); 7368 bf_set(lpfc_mbx_memory_dump_type3_page_no, 7369 &mbox->u.mqe.un.mem_dump_type3, DMP_PAGE_A2); 7370 if (phba->sli_rev < LPFC_SLI_REV4) { 7371 mb = &mbox->u.mb; 7372 mb->un.varDmp.cv = 1; 7373 mb->un.varDmp.co = 1; 7374 mb->un.varWords[2] = 0; 7375 mb->un.varWords[3] = DMP_SFF_PAGE_A2_SIZE / 4; 7376 mb->un.varWords[4] = 0; 7377 mb->un.varWords[5] = 0; 7378 mb->un.varWords[6] = 0; 7379 mb->un.varWords[7] = 0; 7380 mb->un.varWords[8] = 0; 7381 mb->un.varWords[9] = 0; 7382 mb->un.varWords[10] = 0; 7383 mbox->in_ext_byte_len = DMP_SFF_PAGE_A2_SIZE; 7384 mbox->out_ext_byte_len = DMP_SFF_PAGE_A2_SIZE; 7385 mbox->mbox_offset_word = 5; 7386 mbox->ext_buf = virt; 7387 } else { 7388 bf_set(lpfc_mbx_memory_dump_type3_length, 7389 &mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A2_SIZE); 7390 mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys); 7391 mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys); 7392 } 7393 7394 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_SLI4_CONFIG_TMO); 7395 7396 if (rc == MBX_TIMEOUT) 7397 goto error; 7398 if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) { 7399 rc = 1; 7400 goto error; 7401 } 7402 rc = 0; 7403 7404 lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a2, 7405 DMP_SFF_PAGE_A2_SIZE); 7406 7407error: 7408 if (mbox->mbox_flag & LPFC_MBX_WAKE) { 7409 mbox->ctx_buf = mpsave; 7410 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 7411 } 7412 7413 return rc; 7414 7415sfp_fail: 7416 mempool_free(mbox, phba->mbox_mem_pool); 7417 return 1; 7418} 7419 7420/* 7421 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS. 7422 * @vport: pointer to a host virtual N_Port data structure. 7423 * @cmdiocb: pointer to lpfc command iocb data structure. 7424 * @ndlp: pointer to a node-list data structure. 7425 * 7426 * This routine processes an unsolicited RDP(Read Diagnostic Parameters) 7427 * IOCB. First, the payload of the unsolicited RDP is checked. 7428 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3 7429 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2, 7430 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl 7431 * gather all data and send RDP response. 7432 * 7433 * Return code 7434 * 0 - Sent the acc response 7435 * 1 - Sent the reject response. 7436 */ 7437static int 7438lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 7439 struct lpfc_nodelist *ndlp) 7440{ 7441 struct lpfc_hba *phba = vport->phba; 7442 struct lpfc_dmabuf *pcmd; 7443 uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE; 7444 struct fc_rdp_req_frame *rdp_req; 7445 struct lpfc_rdp_context *rdp_context; 7446 union lpfc_wqe128 *cmd = NULL; 7447 struct ls_rjt stat; 7448 7449 if (phba->sli_rev < LPFC_SLI_REV4 || 7450 bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 7451 LPFC_SLI_INTF_IF_TYPE_2) { 7452 rjt_err = LSRJT_UNABLE_TPC; 7453 rjt_expl = LSEXP_REQ_UNSUPPORTED; 7454 goto error; 7455 } 7456 7457 if (phba->sli_rev < LPFC_SLI_REV4 || 7458 test_bit(HBA_FCOE_MODE, &phba->hba_flag)) { 7459 rjt_err = LSRJT_UNABLE_TPC; 7460 rjt_expl = LSEXP_REQ_UNSUPPORTED; 7461 goto error; 7462 } 7463 7464 pcmd = cmdiocb->cmd_dmabuf; 7465 rdp_req = (struct fc_rdp_req_frame *) pcmd->virt; 7466 7467 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 7468 "2422 ELS RDP Request " 7469 "dec len %d tag x%x port_id %d len %d\n", 7470 be32_to_cpu(rdp_req->rdp_des_length), 7471 be32_to_cpu(rdp_req->nport_id_desc.tag), 7472 be32_to_cpu(rdp_req->nport_id_desc.nport_id), 7473 be32_to_cpu(rdp_req->nport_id_desc.length)); 7474 7475 if (sizeof(struct fc_rdp_nport_desc) != 7476 be32_to_cpu(rdp_req->rdp_des_length)) 7477 goto rjt_logerr; 7478 if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag)) 7479 goto rjt_logerr; 7480 if (RDP_NPORT_ID_SIZE != 7481 be32_to_cpu(rdp_req->nport_id_desc.length)) 7482 goto rjt_logerr; 7483 rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL); 7484 if (!rdp_context) { 7485 rjt_err = LSRJT_UNABLE_TPC; 7486 goto error; 7487 } 7488 7489 cmd = &cmdiocb->wqe; 7490 rdp_context->ndlp = lpfc_nlp_get(ndlp); 7491 if (!rdp_context->ndlp) { 7492 kfree(rdp_context); 7493 rjt_err = LSRJT_UNABLE_TPC; 7494 goto error; 7495 } 7496 rdp_context->ox_id = bf_get(wqe_rcvoxid, 7497 &cmd->xmit_els_rsp.wqe_com); 7498 rdp_context->rx_id = bf_get(wqe_ctxt_tag, 7499 &cmd->xmit_els_rsp.wqe_com); 7500 rdp_context->cmpl = lpfc_els_rdp_cmpl; 7501 if (lpfc_get_rdp_info(phba, rdp_context)) { 7502 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS, 7503 "2423 Unable to send mailbox"); 7504 kfree(rdp_context); 7505 rjt_err = LSRJT_UNABLE_TPC; 7506 lpfc_nlp_put(ndlp); 7507 goto error; 7508 } 7509 7510 return 0; 7511 7512rjt_logerr: 7513 rjt_err = LSRJT_LOGICAL_ERR; 7514 7515error: 7516 memset(&stat, 0, sizeof(stat)); 7517 stat.un.b.lsRjtRsnCode = rjt_err; 7518 stat.un.b.lsRjtRsnCodeExp = rjt_expl; 7519 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 7520 return 1; 7521} 7522 7523 7524static void 7525lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 7526{ 7527 MAILBOX_t *mb; 7528 IOCB_t *icmd; 7529 union lpfc_wqe128 *wqe; 7530 uint8_t *pcmd; 7531 struct lpfc_iocbq *elsiocb; 7532 struct lpfc_nodelist *ndlp; 7533 struct ls_rjt *stat; 7534 union lpfc_sli4_cfg_shdr *shdr; 7535 struct lpfc_lcb_context *lcb_context; 7536 struct fc_lcb_res_frame *lcb_res; 7537 uint32_t cmdsize, shdr_status, shdr_add_status; 7538 int rc; 7539 7540 mb = &pmb->u.mb; 7541 lcb_context = pmb->ctx_u.lcb; 7542 ndlp = lcb_context->ndlp; 7543 memset(&pmb->ctx_u, 0, sizeof(pmb->ctx_u)); 7544 pmb->ctx_buf = NULL; 7545 7546 shdr = (union lpfc_sli4_cfg_shdr *) 7547 &pmb->u.mqe.un.beacon_config.header.cfg_shdr; 7548 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7549 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7550 7551 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX, 7552 "0194 SET_BEACON_CONFIG mailbox " 7553 "completed with status x%x add_status x%x," 7554 " mbx status x%x\n", 7555 shdr_status, shdr_add_status, mb->mbxStatus); 7556 7557 if ((mb->mbxStatus != MBX_SUCCESS) || shdr_status || 7558 (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE) || 7559 (shdr_add_status == ADD_STATUS_INVALID_REQUEST)) { 7560 mempool_free(pmb, phba->mbox_mem_pool); 7561 goto error; 7562 } 7563 7564 mempool_free(pmb, phba->mbox_mem_pool); 7565 cmdsize = sizeof(struct fc_lcb_res_frame); 7566 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 7567 lpfc_max_els_tries, ndlp, 7568 ndlp->nlp_DID, ELS_CMD_ACC); 7569 7570 /* Decrement the ndlp reference count from previous mbox command */ 7571 lpfc_nlp_put(ndlp); 7572 7573 if (!elsiocb) 7574 goto free_lcb_context; 7575 7576 lcb_res = (struct fc_lcb_res_frame *)elsiocb->cmd_dmabuf->virt; 7577 7578 memset(lcb_res, 0, sizeof(struct fc_lcb_res_frame)); 7579 7580 if (phba->sli_rev == LPFC_SLI_REV4) { 7581 wqe = &elsiocb->wqe; 7582 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, lcb_context->rx_id); 7583 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7584 lcb_context->ox_id); 7585 } else { 7586 icmd = &elsiocb->iocb; 7587 icmd->ulpContext = lcb_context->rx_id; 7588 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id; 7589 } 7590 7591 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7592 *((uint32_t *)(pcmd)) = ELS_CMD_ACC; 7593 lcb_res->lcb_sub_command = lcb_context->sub_command; 7594 lcb_res->lcb_type = lcb_context->type; 7595 lcb_res->capability = lcb_context->capability; 7596 lcb_res->lcb_frequency = lcb_context->frequency; 7597 lcb_res->lcb_duration = lcb_context->duration; 7598 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7599 phba->fc_stat.elsXmitACC++; 7600 7601 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7602 if (!elsiocb->ndlp) { 7603 lpfc_els_free_iocb(phba, elsiocb); 7604 goto out; 7605 } 7606 7607 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7608 if (rc == IOCB_ERROR) { 7609 lpfc_els_free_iocb(phba, elsiocb); 7610 lpfc_nlp_put(ndlp); 7611 } 7612 out: 7613 kfree(lcb_context); 7614 return; 7615 7616error: 7617 cmdsize = sizeof(struct fc_lcb_res_frame); 7618 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 7619 lpfc_max_els_tries, ndlp, 7620 ndlp->nlp_DID, ELS_CMD_LS_RJT); 7621 lpfc_nlp_put(ndlp); 7622 if (!elsiocb) 7623 goto free_lcb_context; 7624 7625 if (phba->sli_rev == LPFC_SLI_REV4) { 7626 wqe = &elsiocb->wqe; 7627 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, lcb_context->rx_id); 7628 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7629 lcb_context->ox_id); 7630 } else { 7631 icmd = &elsiocb->iocb; 7632 icmd->ulpContext = lcb_context->rx_id; 7633 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id; 7634 } 7635 7636 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7637 7638 *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT; 7639 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t)); 7640 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 7641 7642 if (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE) 7643 stat->un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 7644 7645 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7646 phba->fc_stat.elsXmitLSRJT++; 7647 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7648 if (!elsiocb->ndlp) { 7649 lpfc_els_free_iocb(phba, elsiocb); 7650 goto free_lcb_context; 7651 } 7652 7653 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7654 if (rc == IOCB_ERROR) { 7655 lpfc_els_free_iocb(phba, elsiocb); 7656 lpfc_nlp_put(ndlp); 7657 } 7658free_lcb_context: 7659 kfree(lcb_context); 7660} 7661 7662static int 7663lpfc_sli4_set_beacon(struct lpfc_vport *vport, 7664 struct lpfc_lcb_context *lcb_context, 7665 uint32_t beacon_state) 7666{ 7667 struct lpfc_hba *phba = vport->phba; 7668 union lpfc_sli4_cfg_shdr *cfg_shdr; 7669 LPFC_MBOXQ_t *mbox = NULL; 7670 uint32_t len; 7671 int rc; 7672 7673 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7674 if (!mbox) 7675 return 1; 7676 7677 cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr; 7678 len = sizeof(struct lpfc_mbx_set_beacon_config) - 7679 sizeof(struct lpfc_sli4_cfg_mhdr); 7680 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, 7681 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len, 7682 LPFC_SLI4_MBX_EMBED); 7683 mbox->ctx_u.lcb = lcb_context; 7684 mbox->vport = phba->pport; 7685 mbox->mbox_cmpl = lpfc_els_lcb_rsp; 7686 bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config, 7687 phba->sli4_hba.physical_port); 7688 bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config, 7689 beacon_state); 7690 mbox->u.mqe.un.beacon_config.word5 = 0; /* Reserved */ 7691 7692 /* 7693 * Check bv1s bit before issuing the mailbox 7694 * if bv1s == 1, LCB V1 supported 7695 * else, LCB V0 supported 7696 */ 7697 7698 if (phba->sli4_hba.pc_sli4_params.bv1s) { 7699 /* COMMON_SET_BEACON_CONFIG_V1 */ 7700 cfg_shdr->request.word9 = BEACON_VERSION_V1; 7701 lcb_context->capability |= LCB_CAPABILITY_DURATION; 7702 bf_set(lpfc_mbx_set_beacon_port_type, 7703 &mbox->u.mqe.un.beacon_config, 0); 7704 bf_set(lpfc_mbx_set_beacon_duration_v1, 7705 &mbox->u.mqe.un.beacon_config, 7706 be16_to_cpu(lcb_context->duration)); 7707 } else { 7708 /* COMMON_SET_BEACON_CONFIG_V0 */ 7709 if (be16_to_cpu(lcb_context->duration) != 0) { 7710 mempool_free(mbox, phba->mbox_mem_pool); 7711 return 1; 7712 } 7713 cfg_shdr->request.word9 = BEACON_VERSION_V0; 7714 lcb_context->capability &= ~(LCB_CAPABILITY_DURATION); 7715 bf_set(lpfc_mbx_set_beacon_state, 7716 &mbox->u.mqe.un.beacon_config, beacon_state); 7717 bf_set(lpfc_mbx_set_beacon_port_type, 7718 &mbox->u.mqe.un.beacon_config, 1); 7719 bf_set(lpfc_mbx_set_beacon_duration, 7720 &mbox->u.mqe.un.beacon_config, 7721 be16_to_cpu(lcb_context->duration)); 7722 } 7723 7724 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 7725 if (rc == MBX_NOT_FINISHED) { 7726 mempool_free(mbox, phba->mbox_mem_pool); 7727 return 1; 7728 } 7729 7730 return 0; 7731} 7732 7733 7734/** 7735 * lpfc_els_rcv_lcb - Process an unsolicited LCB 7736 * @vport: pointer to a host virtual N_Port data structure. 7737 * @cmdiocb: pointer to lpfc command iocb data structure. 7738 * @ndlp: pointer to a node-list data structure. 7739 * 7740 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB. 7741 * First, the payload of the unsolicited LCB is checked. 7742 * Then based on Subcommand beacon will either turn on or off. 7743 * 7744 * Return code 7745 * 0 - Sent the acc response 7746 * 1 - Sent the reject response. 7747 **/ 7748static int 7749lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 7750 struct lpfc_nodelist *ndlp) 7751{ 7752 struct lpfc_hba *phba = vport->phba; 7753 struct lpfc_dmabuf *pcmd; 7754 uint8_t *lp; 7755 struct fc_lcb_request_frame *beacon; 7756 struct lpfc_lcb_context *lcb_context; 7757 u8 state, rjt_err = 0; 7758 struct ls_rjt stat; 7759 7760 pcmd = cmdiocb->cmd_dmabuf; 7761 lp = (uint8_t *)pcmd->virt; 7762 beacon = (struct fc_lcb_request_frame *)pcmd->virt; 7763 7764 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 7765 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x " 7766 "type x%x frequency %x duration x%x\n", 7767 lp[0], lp[1], lp[2], 7768 beacon->lcb_command, 7769 beacon->lcb_sub_command, 7770 beacon->lcb_type, 7771 beacon->lcb_frequency, 7772 be16_to_cpu(beacon->lcb_duration)); 7773 7774 if (beacon->lcb_sub_command != LPFC_LCB_ON && 7775 beacon->lcb_sub_command != LPFC_LCB_OFF) { 7776 rjt_err = LSRJT_CMD_UNSUPPORTED; 7777 goto rjt; 7778 } 7779 7780 if (phba->sli_rev < LPFC_SLI_REV4 || 7781 test_bit(HBA_FCOE_MODE, &phba->hba_flag) || 7782 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 7783 LPFC_SLI_INTF_IF_TYPE_2)) { 7784 rjt_err = LSRJT_CMD_UNSUPPORTED; 7785 goto rjt; 7786 } 7787 7788 lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL); 7789 if (!lcb_context) { 7790 rjt_err = LSRJT_UNABLE_TPC; 7791 goto rjt; 7792 } 7793 7794 state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0; 7795 lcb_context->sub_command = beacon->lcb_sub_command; 7796 lcb_context->capability = 0; 7797 lcb_context->type = beacon->lcb_type; 7798 lcb_context->frequency = beacon->lcb_frequency; 7799 lcb_context->duration = beacon->lcb_duration; 7800 lcb_context->ox_id = get_job_rcvoxid(phba, cmdiocb); 7801 lcb_context->rx_id = get_job_ulpcontext(phba, cmdiocb); 7802 lcb_context->ndlp = lpfc_nlp_get(ndlp); 7803 if (!lcb_context->ndlp) { 7804 rjt_err = LSRJT_UNABLE_TPC; 7805 goto rjt_free; 7806 } 7807 7808 if (lpfc_sli4_set_beacon(vport, lcb_context, state)) { 7809 lpfc_printf_vlog(ndlp->vport, KERN_ERR, LOG_TRACE_EVENT, 7810 "0193 failed to send mail box"); 7811 lpfc_nlp_put(ndlp); 7812 rjt_err = LSRJT_UNABLE_TPC; 7813 goto rjt_free; 7814 } 7815 return 0; 7816 7817rjt_free: 7818 kfree(lcb_context); 7819rjt: 7820 memset(&stat, 0, sizeof(stat)); 7821 stat.un.b.lsRjtRsnCode = rjt_err; 7822 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 7823 return 1; 7824} 7825 7826 7827/** 7828 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport 7829 * @vport: pointer to a host virtual N_Port data structure. 7830 * 7831 * This routine cleans up any Registration State Change Notification 7832 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the 7833 * @vport together with the host_lock is used to prevent multiple thread 7834 * trying to access the RSCN array on a same @vport at the same time. 7835 **/ 7836void 7837lpfc_els_flush_rscn(struct lpfc_vport *vport) 7838{ 7839 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7840 struct lpfc_hba *phba = vport->phba; 7841 int i; 7842 7843 spin_lock_irq(shost->host_lock); 7844 if (vport->fc_rscn_flush) { 7845 /* Another thread is walking fc_rscn_id_list on this vport */ 7846 spin_unlock_irq(shost->host_lock); 7847 return; 7848 } 7849 /* Indicate we are walking lpfc_els_flush_rscn on this vport */ 7850 vport->fc_rscn_flush = 1; 7851 spin_unlock_irq(shost->host_lock); 7852 7853 for (i = 0; i < vport->fc_rscn_id_cnt; i++) { 7854 lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); 7855 vport->fc_rscn_id_list[i] = NULL; 7856 } 7857 clear_bit(FC_RSCN_MODE, &vport->fc_flag); 7858 clear_bit(FC_RSCN_DISCOVERY, &vport->fc_flag); 7859 spin_lock_irq(shost->host_lock); 7860 vport->fc_rscn_id_cnt = 0; 7861 spin_unlock_irq(shost->host_lock); 7862 lpfc_can_disctmo(vport); 7863 /* Indicate we are done walking this fc_rscn_id_list */ 7864 vport->fc_rscn_flush = 0; 7865} 7866 7867/** 7868 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did 7869 * @vport: pointer to a host virtual N_Port data structure. 7870 * @did: remote destination port identifier. 7871 * 7872 * This routine checks whether there is any pending Registration State 7873 * Configuration Notification (RSCN) to a @did on @vport. 7874 * 7875 * Return code 7876 * None zero - The @did matched with a pending rscn 7877 * 0 - not able to match @did with a pending rscn 7878 **/ 7879int 7880lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) 7881{ 7882 D_ID ns_did; 7883 D_ID rscn_did; 7884 uint32_t *lp; 7885 uint32_t payload_len, i; 7886 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7887 7888 ns_did.un.word = did; 7889 7890 /* Never match fabric nodes for RSCNs */ 7891 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) 7892 return 0; 7893 7894 /* If we are doing a FULL RSCN rediscovery, match everything */ 7895 if (test_bit(FC_RSCN_DISCOVERY, &vport->fc_flag)) 7896 return did; 7897 7898 spin_lock_irq(shost->host_lock); 7899 if (vport->fc_rscn_flush) { 7900 /* Another thread is walking fc_rscn_id_list on this vport */ 7901 spin_unlock_irq(shost->host_lock); 7902 return 0; 7903 } 7904 /* Indicate we are walking fc_rscn_id_list on this vport */ 7905 vport->fc_rscn_flush = 1; 7906 spin_unlock_irq(shost->host_lock); 7907 for (i = 0; i < vport->fc_rscn_id_cnt; i++) { 7908 lp = vport->fc_rscn_id_list[i]->virt; 7909 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); 7910 payload_len -= sizeof(uint32_t); /* take off word 0 */ 7911 while (payload_len) { 7912 rscn_did.un.word = be32_to_cpu(*lp++); 7913 payload_len -= sizeof(uint32_t); 7914 switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) { 7915 case RSCN_ADDRESS_FORMAT_PORT: 7916 if ((ns_did.un.b.domain == rscn_did.un.b.domain) 7917 && (ns_did.un.b.area == rscn_did.un.b.area) 7918 && (ns_did.un.b.id == rscn_did.un.b.id)) 7919 goto return_did_out; 7920 break; 7921 case RSCN_ADDRESS_FORMAT_AREA: 7922 if ((ns_did.un.b.domain == rscn_did.un.b.domain) 7923 && (ns_did.un.b.area == rscn_did.un.b.area)) 7924 goto return_did_out; 7925 break; 7926 case RSCN_ADDRESS_FORMAT_DOMAIN: 7927 if (ns_did.un.b.domain == rscn_did.un.b.domain) 7928 goto return_did_out; 7929 break; 7930 case RSCN_ADDRESS_FORMAT_FABRIC: 7931 goto return_did_out; 7932 } 7933 } 7934 } 7935 /* Indicate we are done with walking fc_rscn_id_list on this vport */ 7936 vport->fc_rscn_flush = 0; 7937 return 0; 7938return_did_out: 7939 /* Indicate we are done with walking fc_rscn_id_list on this vport */ 7940 vport->fc_rscn_flush = 0; 7941 return did; 7942} 7943 7944/** 7945 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn 7946 * @vport: pointer to a host virtual N_Port data structure. 7947 * 7948 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the 7949 * state machine for a @vport's nodes that are with pending RSCN (Registration 7950 * State Change Notification). 7951 * 7952 * Return code 7953 * 0 - Successful (currently alway return 0) 7954 **/ 7955static int 7956lpfc_rscn_recovery_check(struct lpfc_vport *vport) 7957{ 7958 struct lpfc_nodelist *ndlp = NULL, *n; 7959 7960 /* Move all affected nodes by pending RSCNs to NPR state. */ 7961 list_for_each_entry_safe(ndlp, n, &vport->fc_nodes, nlp_listp) { 7962 if (test_bit(FC_UNLOADING, &vport->load_flag)) { 7963 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 7964 "1000 %s Unloading set\n", 7965 __func__); 7966 return 0; 7967 } 7968 7969 if ((ndlp->nlp_state == NLP_STE_UNUSED_NODE) || 7970 !lpfc_rscn_payload_check(vport, ndlp->nlp_DID)) 7971 continue; 7972 7973 /* NVME Target mode does not do RSCN Recovery. */ 7974 if (vport->phba->nvmet_support) 7975 continue; 7976 7977 /* If we are in the process of doing discovery on this 7978 * NPort, let it continue on its own. 7979 */ 7980 switch (ndlp->nlp_state) { 7981 case NLP_STE_PLOGI_ISSUE: 7982 case NLP_STE_ADISC_ISSUE: 7983 case NLP_STE_REG_LOGIN_ISSUE: 7984 case NLP_STE_PRLI_ISSUE: 7985 case NLP_STE_LOGO_ISSUE: 7986 continue; 7987 } 7988 7989 lpfc_disc_state_machine(vport, ndlp, NULL, 7990 NLP_EVT_DEVICE_RECOVERY); 7991 lpfc_cancel_retry_delay_tmo(vport, ndlp); 7992 } 7993 return 0; 7994} 7995 7996/** 7997 * lpfc_send_rscn_event - Send an RSCN event to management application 7998 * @vport: pointer to a host virtual N_Port data structure. 7999 * @cmdiocb: pointer to lpfc command iocb data structure. 8000 * 8001 * lpfc_send_rscn_event sends an RSCN netlink event to management 8002 * applications. 8003 */ 8004static void 8005lpfc_send_rscn_event(struct lpfc_vport *vport, 8006 struct lpfc_iocbq *cmdiocb) 8007{ 8008 struct lpfc_dmabuf *pcmd; 8009 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8010 uint32_t *payload_ptr; 8011 uint32_t payload_len; 8012 struct lpfc_rscn_event_header *rscn_event_data; 8013 8014 pcmd = cmdiocb->cmd_dmabuf; 8015 payload_ptr = (uint32_t *) pcmd->virt; 8016 payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK); 8017 8018 rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) + 8019 payload_len, GFP_KERNEL); 8020 if (!rscn_event_data) { 8021 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 8022 "0147 Failed to allocate memory for RSCN event\n"); 8023 return; 8024 } 8025 rscn_event_data->event_type = FC_REG_RSCN_EVENT; 8026 rscn_event_data->payload_length = payload_len; 8027 memcpy(rscn_event_data->rscn_payload, payload_ptr, 8028 payload_len); 8029 8030 fc_host_post_vendor_event(shost, 8031 fc_get_event_number(), 8032 sizeof(struct lpfc_rscn_event_header) + payload_len, 8033 (char *)rscn_event_data, 8034 LPFC_NL_VENDOR_ID); 8035 8036 kfree(rscn_event_data); 8037} 8038 8039/** 8040 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb 8041 * @vport: pointer to a host virtual N_Port data structure. 8042 * @cmdiocb: pointer to lpfc command iocb data structure. 8043 * @ndlp: pointer to a node-list data structure. 8044 * 8045 * This routine processes an unsolicited RSCN (Registration State Change 8046 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked 8047 * to invoke fc_host_post_event() routine to the FC transport layer. If the 8048 * discover state machine is about to begin discovery, it just accepts the 8049 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only 8050 * contains N_Port IDs for other vports on this HBA, it just accepts the 8051 * RSCN and ignore processing it. If the state machine is in the recovery 8052 * state, the fc_rscn_id_list of this @vport is walked and the 8053 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for 8054 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn() 8055 * routine is invoked to handle the RSCN event. 8056 * 8057 * Return code 8058 * 0 - Just sent the acc response 8059 * 1 - Sent the acc response and waited for name server completion 8060 **/ 8061static int 8062lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8063 struct lpfc_nodelist *ndlp) 8064{ 8065 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8066 struct lpfc_hba *phba = vport->phba; 8067 struct lpfc_dmabuf *pcmd; 8068 uint32_t *lp, *datap; 8069 uint32_t payload_len, length, nportid, *cmd; 8070 int rscn_cnt; 8071 int rscn_id = 0, hba_id = 0; 8072 int i, tmo; 8073 8074 pcmd = cmdiocb->cmd_dmabuf; 8075 lp = (uint32_t *) pcmd->virt; 8076 8077 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); 8078 payload_len -= sizeof(uint32_t); /* take off word 0 */ 8079 /* RSCN received */ 8080 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8081 "0214 RSCN received Data: x%lx x%x x%x x%x\n", 8082 vport->fc_flag, payload_len, *lp, 8083 vport->fc_rscn_id_cnt); 8084 8085 /* Send an RSCN event to the management application */ 8086 lpfc_send_rscn_event(vport, cmdiocb); 8087 8088 for (i = 0; i < payload_len/sizeof(uint32_t); i++) 8089 fc_host_post_event(shost, fc_get_event_number(), 8090 FCH_EVT_RSCN, lp[i]); 8091 8092 /* Check if RSCN is coming from a direct-connected remote NPort */ 8093 if (test_bit(FC_PT2PT, &vport->fc_flag)) { 8094 /* If so, just ACC it, no other action needed for now */ 8095 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 8096 "2024 pt2pt RSCN %08x Data: x%lx x%x\n", 8097 *lp, vport->fc_flag, payload_len); 8098 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8099 8100 /* Check to see if we need to NVME rescan this target 8101 * remoteport. 8102 */ 8103 if (ndlp->nlp_fc4_type & NLP_FC4_NVME && 8104 ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY)) 8105 lpfc_nvme_rescan_port(vport, ndlp); 8106 return 0; 8107 } 8108 8109 /* If we are about to begin discovery, just ACC the RSCN. 8110 * Discovery processing will satisfy it. 8111 */ 8112 if (vport->port_state <= LPFC_NS_QRY) { 8113 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8114 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%lx", 8115 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); 8116 8117 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8118 return 0; 8119 } 8120 8121 /* If this RSCN just contains NPortIDs for other vports on this HBA, 8122 * just ACC and ignore it. 8123 */ 8124 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 8125 !(vport->cfg_peer_port_login)) { 8126 i = payload_len; 8127 datap = lp; 8128 while (i > 0) { 8129 nportid = *datap++; 8130 nportid = ((be32_to_cpu(nportid)) & Mask_DID); 8131 i -= sizeof(uint32_t); 8132 rscn_id++; 8133 if (lpfc_find_vport_by_did(phba, nportid)) 8134 hba_id++; 8135 } 8136 if (rscn_id == hba_id) { 8137 /* ALL NPortIDs in RSCN are on HBA */ 8138 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8139 "0219 Ignore RSCN " 8140 "Data: x%lx x%x x%x x%x\n", 8141 vport->fc_flag, payload_len, 8142 *lp, vport->fc_rscn_id_cnt); 8143 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8144 "RCV RSCN vport: did:x%x/ste:x%x flg:x%lx", 8145 ndlp->nlp_DID, vport->port_state, 8146 ndlp->nlp_flag); 8147 8148 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, 8149 ndlp, NULL); 8150 /* Restart disctmo if its already running */ 8151 if (test_bit(FC_DISC_TMO, &vport->fc_flag)) { 8152 tmo = ((phba->fc_ratov * 3) + 3); 8153 mod_timer(&vport->fc_disctmo, 8154 jiffies + secs_to_jiffies(tmo)); 8155 } 8156 return 0; 8157 } 8158 } 8159 8160 spin_lock_irq(shost->host_lock); 8161 if (vport->fc_rscn_flush) { 8162 /* Another thread is walking fc_rscn_id_list on this vport */ 8163 spin_unlock_irq(shost->host_lock); 8164 set_bit(FC_RSCN_DISCOVERY, &vport->fc_flag); 8165 /* Send back ACC */ 8166 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8167 return 0; 8168 } 8169 /* Indicate we are walking fc_rscn_id_list on this vport */ 8170 vport->fc_rscn_flush = 1; 8171 spin_unlock_irq(shost->host_lock); 8172 /* Get the array count after successfully have the token */ 8173 rscn_cnt = vport->fc_rscn_id_cnt; 8174 /* If we are already processing an RSCN, save the received 8175 * RSCN payload buffer, cmdiocb->cmd_dmabuf to process later. 8176 */ 8177 if (test_bit(FC_RSCN_MODE, &vport->fc_flag) || 8178 test_bit(FC_NDISC_ACTIVE, &vport->fc_flag)) { 8179 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8180 "RCV RSCN defer: did:x%x/ste:x%x flg:x%lx", 8181 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); 8182 8183 set_bit(FC_RSCN_DEFERRED, &vport->fc_flag); 8184 8185 /* Restart disctmo if its already running */ 8186 if (test_bit(FC_DISC_TMO, &vport->fc_flag)) { 8187 tmo = ((phba->fc_ratov * 3) + 3); 8188 mod_timer(&vport->fc_disctmo, 8189 jiffies + secs_to_jiffies(tmo)); 8190 } 8191 if ((rscn_cnt < FC_MAX_HOLD_RSCN) && 8192 !test_bit(FC_RSCN_DISCOVERY, &vport->fc_flag)) { 8193 set_bit(FC_RSCN_MODE, &vport->fc_flag); 8194 if (rscn_cnt) { 8195 cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; 8196 length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); 8197 } 8198 if ((rscn_cnt) && 8199 (payload_len + length <= LPFC_BPL_SIZE)) { 8200 *cmd &= ELS_CMD_MASK; 8201 *cmd |= cpu_to_be32(payload_len + length); 8202 memcpy(((uint8_t *)cmd) + length, lp, 8203 payload_len); 8204 } else { 8205 vport->fc_rscn_id_list[rscn_cnt] = pcmd; 8206 vport->fc_rscn_id_cnt++; 8207 /* If we zero, cmdiocb->cmd_dmabuf, the calling 8208 * routine will not try to free it. 8209 */ 8210 cmdiocb->cmd_dmabuf = NULL; 8211 } 8212 /* Deferred RSCN */ 8213 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8214 "0235 Deferred RSCN " 8215 "Data: x%x x%lx x%x\n", 8216 vport->fc_rscn_id_cnt, vport->fc_flag, 8217 vport->port_state); 8218 } else { 8219 set_bit(FC_RSCN_DISCOVERY, &vport->fc_flag); 8220 /* ReDiscovery RSCN */ 8221 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8222 "0234 ReDiscovery RSCN " 8223 "Data: x%x x%lx x%x\n", 8224 vport->fc_rscn_id_cnt, vport->fc_flag, 8225 vport->port_state); 8226 } 8227 /* Indicate we are done walking fc_rscn_id_list on this vport */ 8228 vport->fc_rscn_flush = 0; 8229 /* Send back ACC */ 8230 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8231 /* send RECOVERY event for ALL nodes that match RSCN payload */ 8232 lpfc_rscn_recovery_check(vport); 8233 return 0; 8234 } 8235 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8236 "RCV RSCN: did:x%x/ste:x%x flg:x%lx", 8237 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); 8238 8239 set_bit(FC_RSCN_MODE, &vport->fc_flag); 8240 vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; 8241 /* Indicate we are done walking fc_rscn_id_list on this vport */ 8242 vport->fc_rscn_flush = 0; 8243 /* 8244 * If we zero, cmdiocb->cmd_dmabuf, the calling routine will 8245 * not try to free it. 8246 */ 8247 cmdiocb->cmd_dmabuf = NULL; 8248 lpfc_set_disctmo(vport); 8249 /* Send back ACC */ 8250 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8251 /* send RECOVERY event for ALL nodes that match RSCN payload */ 8252 lpfc_rscn_recovery_check(vport); 8253 return lpfc_els_handle_rscn(vport); 8254} 8255 8256/** 8257 * lpfc_els_handle_rscn - Handle rscn for a vport 8258 * @vport: pointer to a host virtual N_Port data structure. 8259 * 8260 * This routine handles the Registration State Configuration Notification 8261 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall 8262 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise, 8263 * if the ndlp to NameServer exists, a Common Transport (CT) command to the 8264 * NameServer shall be issued. If CT command to the NameServer fails to be 8265 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any 8266 * RSCN activities with the @vport. 8267 * 8268 * Return code 8269 * 0 - Cleaned up rscn on the @vport 8270 * 1 - Wait for plogi to name server before proceed 8271 **/ 8272int 8273lpfc_els_handle_rscn(struct lpfc_vport *vport) 8274{ 8275 struct lpfc_nodelist *ndlp; 8276 struct lpfc_hba *phba = vport->phba; 8277 8278 /* Ignore RSCN if the port is being torn down. */ 8279 if (test_bit(FC_UNLOADING, &vport->load_flag)) { 8280 lpfc_els_flush_rscn(vport); 8281 return 0; 8282 } 8283 8284 /* Start timer for RSCN processing */ 8285 lpfc_set_disctmo(vport); 8286 8287 /* RSCN processed */ 8288 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8289 "0215 RSCN processed Data: x%lx x%x x%x x%x x%x x%x\n", 8290 vport->fc_flag, 0, vport->fc_rscn_id_cnt, 8291 vport->port_state, vport->num_disc_nodes, 8292 vport->gidft_inp); 8293 8294 /* To process RSCN, first compare RSCN data with NameServer */ 8295 vport->fc_ns_retry = 0; 8296 vport->num_disc_nodes = 0; 8297 8298 ndlp = lpfc_findnode_did(vport, NameServer_DID); 8299 if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { 8300 /* Good ndlp, issue CT Request to NameServer. Need to 8301 * know how many gidfts were issued. If none, then just 8302 * flush the RSCN. Otherwise, the outstanding requests 8303 * need to complete. 8304 */ 8305 if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_FT) { 8306 if (lpfc_issue_gidft(vport) > 0) 8307 return 1; 8308 } else if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_PT) { 8309 if (lpfc_issue_gidpt(vport) > 0) 8310 return 1; 8311 } else { 8312 return 1; 8313 } 8314 } else { 8315 /* Nameserver login in question. Revalidate. */ 8316 if (ndlp) { 8317 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; 8318 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 8319 } else { 8320 ndlp = lpfc_nlp_init(vport, NameServer_DID); 8321 if (!ndlp) { 8322 lpfc_els_flush_rscn(vport); 8323 return 0; 8324 } 8325 ndlp->nlp_prev_state = ndlp->nlp_state; 8326 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 8327 } 8328 ndlp->nlp_type |= NLP_FABRIC; 8329 lpfc_issue_els_plogi(vport, NameServer_DID, 0); 8330 /* Wait for NameServer login cmpl before we can 8331 * continue 8332 */ 8333 return 1; 8334 } 8335 8336 lpfc_els_flush_rscn(vport); 8337 return 0; 8338} 8339 8340/** 8341 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb 8342 * @vport: pointer to a host virtual N_Port data structure. 8343 * @cmdiocb: pointer to lpfc command iocb data structure. 8344 * @ndlp: pointer to a node-list data structure. 8345 * 8346 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS 8347 * unsolicited event. An unsolicited FLOGI can be received in a point-to- 8348 * point topology. As an unsolicited FLOGI should not be received in a loop 8349 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The 8350 * lpfc_check_sparm() routine is invoked to check the parameters in the 8351 * unsolicited FLOGI. If parameters validation failed, the routine 8352 * lpfc_els_rsp_reject() shall be called with reject reason code set to 8353 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the 8354 * FLOGI shall be compared with the Port WWN of the @vport to determine who 8355 * will initiate PLOGI. The higher lexicographical value party shall has 8356 * higher priority (as the winning port) and will initiate PLOGI and 8357 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result 8358 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI 8359 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI. 8360 * 8361 * Return code 8362 * 0 - Successfully processed the unsolicited flogi 8363 * 1 - Failed to process the unsolicited flogi 8364 **/ 8365static int 8366lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8367 struct lpfc_nodelist *ndlp) 8368{ 8369 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8370 struct lpfc_hba *phba = vport->phba; 8371 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 8372 uint32_t *lp = (uint32_t *) pcmd->virt; 8373 union lpfc_wqe128 *wqe = &cmdiocb->wqe; 8374 struct serv_parm *sp; 8375 LPFC_MBOXQ_t *mbox; 8376 uint32_t cmd, did; 8377 int rc; 8378 unsigned long fc_flag = 0; 8379 uint32_t port_state = 0; 8380 8381 /* Clear external loopback plug detected flag */ 8382 phba->link_flag &= ~LS_EXTERNAL_LOOPBACK; 8383 8384 cmd = *lp++; 8385 sp = (struct serv_parm *) lp; 8386 8387 /* FLOGI received */ 8388 8389 lpfc_set_disctmo(vport); 8390 8391 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 8392 /* We should never receive a FLOGI in loop mode, ignore it */ 8393 did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest); 8394 8395 /* An FLOGI ELS command <elsCmd> was received from DID <did> in 8396 Loop Mode */ 8397 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 8398 "0113 An FLOGI ELS command x%x was " 8399 "received from DID x%x in Loop Mode\n", 8400 cmd, did); 8401 return 1; 8402 } 8403 8404 (void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1); 8405 8406 /* 8407 * If our portname is greater than the remote portname, 8408 * then we initiate Nport login. 8409 */ 8410 8411 rc = memcmp(&vport->fc_portname, &sp->portName, 8412 sizeof(struct lpfc_name)); 8413 8414 if (!rc) { 8415 if (phba->sli_rev < LPFC_SLI_REV4) { 8416 mbox = mempool_alloc(phba->mbox_mem_pool, 8417 GFP_KERNEL); 8418 if (!mbox) 8419 return 1; 8420 lpfc_linkdown(phba); 8421 lpfc_init_link(phba, mbox, 8422 phba->cfg_topology, 8423 phba->cfg_link_speed); 8424 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 8425 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 8426 mbox->vport = vport; 8427 rc = lpfc_sli_issue_mbox(phba, mbox, 8428 MBX_NOWAIT); 8429 lpfc_set_loopback_flag(phba); 8430 if (rc == MBX_NOT_FINISHED) 8431 mempool_free(mbox, phba->mbox_mem_pool); 8432 return 1; 8433 } 8434 8435 /* External loopback plug insertion detected */ 8436 phba->link_flag |= LS_EXTERNAL_LOOPBACK; 8437 8438 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_LIBDFC, 8439 "1119 External Loopback plug detected\n"); 8440 8441 /* abort the flogi coming back to ourselves 8442 * due to external loopback on the port. 8443 */ 8444 lpfc_els_abort_flogi(phba); 8445 return 0; 8446 8447 } else if (rc > 0) { /* greater than */ 8448 set_bit(FC_PT2PT_PLOGI, &vport->fc_flag); 8449 8450 /* If we have the high WWPN we can assign our own 8451 * myDID; otherwise, we have to WAIT for a PLOGI 8452 * from the remote NPort to find out what it 8453 * will be. 8454 */ 8455 vport->fc_myDID = PT2PT_LocalID; 8456 } else { 8457 vport->fc_myDID = PT2PT_RemoteID; 8458 } 8459 8460 /* 8461 * The vport state should go to LPFC_FLOGI only 8462 * AFTER we issue a FLOGI, not receive one. 8463 */ 8464 spin_lock_irq(shost->host_lock); 8465 fc_flag = vport->fc_flag; 8466 port_state = vport->port_state; 8467 /* Acking an unsol FLOGI. Count 1 for link bounce 8468 * work-around. 8469 */ 8470 vport->rcv_flogi_cnt++; 8471 spin_unlock_irq(shost->host_lock); 8472 set_bit(FC_PT2PT, &vport->fc_flag); 8473 clear_bit(FC_FABRIC, &vport->fc_flag); 8474 clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag); 8475 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 8476 "3311 Rcv Flogi PS x%x new PS x%x " 8477 "fc_flag x%lx new fc_flag x%lx, hba_flag x%lx\n", 8478 port_state, vport->port_state, 8479 fc_flag, vport->fc_flag, phba->hba_flag); 8480 8481 /* 8482 * We temporarily set fc_myDID to make it look like we are 8483 * a Fabric. This is done just so we end up with the right 8484 * did / sid on the FLOGI ACC rsp. 8485 */ 8486 did = vport->fc_myDID; 8487 vport->fc_myDID = Fabric_DID; 8488 8489 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 8490 8491 /* Defer ACC response until AFTER we issue a FLOGI */ 8492 if (!test_bit(HBA_FLOGI_ISSUED, &phba->hba_flag)) { 8493 phba->defer_flogi_acc.rx_id = bf_get(wqe_ctxt_tag, 8494 &wqe->xmit_els_rsp.wqe_com); 8495 phba->defer_flogi_acc.ox_id = bf_get(wqe_rcvoxid, 8496 &wqe->xmit_els_rsp.wqe_com); 8497 8498 vport->fc_myDID = did; 8499 phba->defer_flogi_acc.flag = true; 8500 8501 /* This nlp_get is paired with nlp_puts that reset the 8502 * defer_flogi_acc.flag back to false. We need to retain 8503 * a kref on the ndlp until the deferred FLOGI ACC is 8504 * processed or cancelled. 8505 */ 8506 phba->defer_flogi_acc.ndlp = lpfc_nlp_get(ndlp); 8507 8508 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 8509 "3344 Deferring FLOGI ACC: rx_id: x%x," 8510 " ox_id: x%x, ndlp x%px, hba_flag x%lx\n", 8511 phba->defer_flogi_acc.rx_id, 8512 phba->defer_flogi_acc.ox_id, 8513 phba->defer_flogi_acc.ndlp, 8514 phba->hba_flag); 8515 return 0; 8516 } 8517 8518 /* Send back ACC */ 8519 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL); 8520 8521 /* Now lets put fc_myDID back to what its supposed to be */ 8522 vport->fc_myDID = did; 8523 8524 return 0; 8525} 8526 8527/** 8528 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb 8529 * @vport: pointer to a host virtual N_Port data structure. 8530 * @cmdiocb: pointer to lpfc command iocb data structure. 8531 * @ndlp: pointer to a node-list data structure. 8532 * 8533 * This routine processes Request Node Identification Data (RNID) IOCB 8534 * received as an ELS unsolicited event. Only when the RNID specified format 8535 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data) 8536 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to 8537 * Accept (ACC) the RNID ELS command. All the other RNID formats are 8538 * rejected by invoking the lpfc_els_rsp_reject() routine. 8539 * 8540 * Return code 8541 * 0 - Successfully processed rnid iocb (currently always return 0) 8542 **/ 8543static int 8544lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8545 struct lpfc_nodelist *ndlp) 8546{ 8547 struct lpfc_dmabuf *pcmd; 8548 uint32_t *lp; 8549 RNID *rn; 8550 struct ls_rjt stat; 8551 8552 pcmd = cmdiocb->cmd_dmabuf; 8553 lp = (uint32_t *) pcmd->virt; 8554 8555 lp++; 8556 rn = (RNID *) lp; 8557 8558 /* RNID received */ 8559 8560 switch (rn->Format) { 8561 case 0: 8562 case RNID_TOPOLOGY_DISC: 8563 /* Send back ACC */ 8564 lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); 8565 break; 8566 default: 8567 /* Reject this request because format not supported */ 8568 stat.un.b.lsRjtRsvd0 = 0; 8569 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8570 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8571 stat.un.b.vendorUnique = 0; 8572 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 8573 NULL); 8574 } 8575 return 0; 8576} 8577 8578/** 8579 * lpfc_els_rcv_echo - Process an unsolicited echo iocb 8580 * @vport: pointer to a host virtual N_Port data structure. 8581 * @cmdiocb: pointer to lpfc command iocb data structure. 8582 * @ndlp: pointer to a node-list data structure. 8583 * 8584 * Return code 8585 * 0 - Successfully processed echo iocb (currently always return 0) 8586 **/ 8587static int 8588lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8589 struct lpfc_nodelist *ndlp) 8590{ 8591 uint8_t *pcmd; 8592 8593 pcmd = (uint8_t *)cmdiocb->cmd_dmabuf->virt; 8594 8595 /* skip over first word of echo command to find echo data */ 8596 pcmd += sizeof(uint32_t); 8597 8598 lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp); 8599 return 0; 8600} 8601 8602/** 8603 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb 8604 * @vport: pointer to a host virtual N_Port data structure. 8605 * @cmdiocb: pointer to lpfc command iocb data structure. 8606 * @ndlp: pointer to a node-list data structure. 8607 * 8608 * This routine processes a Link Incident Report Registration(LIRR) IOCB 8609 * received as an ELS unsolicited event. Currently, this function just invokes 8610 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally. 8611 * 8612 * Return code 8613 * 0 - Successfully processed lirr iocb (currently always return 0) 8614 **/ 8615static int 8616lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8617 struct lpfc_nodelist *ndlp) 8618{ 8619 struct ls_rjt stat; 8620 8621 /* For now, unconditionally reject this command */ 8622 stat.un.b.lsRjtRsvd0 = 0; 8623 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8624 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8625 stat.un.b.vendorUnique = 0; 8626 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 8627 return 0; 8628} 8629 8630/** 8631 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb 8632 * @vport: pointer to a host virtual N_Port data structure. 8633 * @cmdiocb: pointer to lpfc command iocb data structure. 8634 * @ndlp: pointer to a node-list data structure. 8635 * 8636 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB 8637 * received as an ELS unsolicited event. A request to RRQ shall only 8638 * be accepted if the Originator Nx_Port N_Port_ID or the Responder 8639 * Nx_Port N_Port_ID of the target Exchange is the same as the 8640 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is 8641 * not accepted, an LS_RJT with reason code "Unable to perform 8642 * command request" and reason code explanation "Invalid Originator 8643 * S_ID" shall be returned. For now, we just unconditionally accept 8644 * RRQ from the target. 8645 **/ 8646static void 8647lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8648 struct lpfc_nodelist *ndlp) 8649{ 8650 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8651 if (vport->phba->sli_rev == LPFC_SLI_REV4) 8652 lpfc_els_clear_rrq(vport, cmdiocb, ndlp); 8653} 8654 8655/** 8656 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd 8657 * @phba: pointer to lpfc hba data structure. 8658 * @pmb: pointer to the driver internal queue element for mailbox command. 8659 * 8660 * This routine is the completion callback function for the MBX_READ_LNK_STAT 8661 * mailbox command. This callback function is to actually send the Accept 8662 * (ACC) response to a Read Link Status (RLS) unsolicited IOCB event. It 8663 * collects the link statistics from the completion of the MBX_READ_LNK_STAT 8664 * mailbox command, constructs the RLS response with the link statistics 8665 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC 8666 * response to the RLS. 8667 * 8668 * Note that the ndlp reference count will be incremented by 1 for holding the 8669 * ndlp and the reference to ndlp will be stored into the ndlp field of 8670 * the IOCB for the completion callback function to the RLS Accept Response 8671 * ELS IOCB command. 8672 * 8673 **/ 8674static void 8675lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 8676{ 8677 int rc = 0; 8678 MAILBOX_t *mb; 8679 IOCB_t *icmd; 8680 union lpfc_wqe128 *wqe; 8681 struct RLS_RSP *rls_rsp; 8682 uint8_t *pcmd; 8683 struct lpfc_iocbq *elsiocb; 8684 struct lpfc_nodelist *ndlp; 8685 uint16_t oxid; 8686 uint16_t rxid; 8687 uint32_t cmdsize; 8688 u32 ulp_context; 8689 8690 mb = &pmb->u.mb; 8691 8692 ndlp = pmb->ctx_ndlp; 8693 rxid = (uint16_t)(pmb->ctx_u.ox_rx_id & 0xffff); 8694 oxid = (uint16_t)((pmb->ctx_u.ox_rx_id >> 16) & 0xffff); 8695 memset(&pmb->ctx_u, 0, sizeof(pmb->ctx_u)); 8696 pmb->ctx_ndlp = NULL; 8697 8698 if (mb->mbxStatus) { 8699 mempool_free(pmb, phba->mbox_mem_pool); 8700 return; 8701 } 8702 8703 cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t); 8704 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 8705 lpfc_max_els_tries, ndlp, 8706 ndlp->nlp_DID, ELS_CMD_ACC); 8707 8708 /* Decrement the ndlp reference count from previous mbox command */ 8709 lpfc_nlp_put(ndlp); 8710 8711 if (!elsiocb) { 8712 mempool_free(pmb, phba->mbox_mem_pool); 8713 return; 8714 } 8715 8716 ulp_context = get_job_ulpcontext(phba, elsiocb); 8717 if (phba->sli_rev == LPFC_SLI_REV4) { 8718 wqe = &elsiocb->wqe; 8719 /* Xri / rx_id */ 8720 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, rxid); 8721 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, oxid); 8722 } else { 8723 icmd = &elsiocb->iocb; 8724 icmd->ulpContext = rxid; 8725 icmd->unsli3.rcvsli3.ox_id = oxid; 8726 } 8727 8728 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 8729 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 8730 pcmd += sizeof(uint32_t); /* Skip past command */ 8731 rls_rsp = (struct RLS_RSP *)pcmd; 8732 8733 rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); 8734 rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); 8735 rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); 8736 rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); 8737 rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); 8738 rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); 8739 mempool_free(pmb, phba->mbox_mem_pool); 8740 /* Xmit ELS RLS ACC response tag <ulpIoTag> */ 8741 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, 8742 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, " 8743 "did x%x, nlp_flag x%lx, nlp_state x%x, rpi x%x\n", 8744 elsiocb->iotag, ulp_context, 8745 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 8746 ndlp->nlp_rpi); 8747 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 8748 phba->fc_stat.elsXmitACC++; 8749 elsiocb->ndlp = lpfc_nlp_get(ndlp); 8750 if (!elsiocb->ndlp) { 8751 lpfc_els_free_iocb(phba, elsiocb); 8752 return; 8753 } 8754 8755 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 8756 if (rc == IOCB_ERROR) { 8757 lpfc_els_free_iocb(phba, elsiocb); 8758 lpfc_nlp_put(ndlp); 8759 } 8760 return; 8761} 8762 8763/** 8764 * lpfc_els_rcv_rls - Process an unsolicited rls iocb 8765 * @vport: pointer to a host virtual N_Port data structure. 8766 * @cmdiocb: pointer to lpfc command iocb data structure. 8767 * @ndlp: pointer to a node-list data structure. 8768 * 8769 * This routine processes Read Link Status (RLS) IOCB received as an 8770 * ELS unsolicited event. It first checks the remote port state. If the 8771 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE 8772 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject 8773 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command 8774 * for reading the HBA link statistics. It is for the callback function, 8775 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command 8776 * to actually sending out RPL Accept (ACC) response. 8777 * 8778 * Return codes 8779 * 0 - Successfully processed rls iocb (currently always return 0) 8780 **/ 8781static int 8782lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8783 struct lpfc_nodelist *ndlp) 8784{ 8785 struct lpfc_hba *phba = vport->phba; 8786 LPFC_MBOXQ_t *mbox; 8787 struct ls_rjt stat; 8788 u32 ctx = get_job_ulpcontext(phba, cmdiocb); 8789 u32 ox_id = get_job_rcvoxid(phba, cmdiocb); 8790 8791 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 8792 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) 8793 /* reject the unsolicited RLS request and done with it */ 8794 goto reject_out; 8795 8796 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); 8797 if (mbox) { 8798 lpfc_read_lnk_stat(phba, mbox); 8799 mbox->ctx_u.ox_rx_id = ox_id << 16 | ctx; 8800 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 8801 if (!mbox->ctx_ndlp) 8802 goto node_err; 8803 mbox->vport = vport; 8804 mbox->mbox_cmpl = lpfc_els_rsp_rls_acc; 8805 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 8806 != MBX_NOT_FINISHED) 8807 /* Mbox completion will send ELS Response */ 8808 return 0; 8809 /* Decrement reference count used for the failed mbox 8810 * command. 8811 */ 8812 lpfc_nlp_put(ndlp); 8813node_err: 8814 mempool_free(mbox, phba->mbox_mem_pool); 8815 } 8816reject_out: 8817 /* issue rejection response */ 8818 stat.un.b.lsRjtRsvd0 = 0; 8819 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8820 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8821 stat.un.b.vendorUnique = 0; 8822 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 8823 return 0; 8824} 8825 8826/** 8827 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb 8828 * @vport: pointer to a host virtual N_Port data structure. 8829 * @cmdiocb: pointer to lpfc command iocb data structure. 8830 * @ndlp: pointer to a node-list data structure. 8831 * 8832 * This routine processes Read Timeout Value (RTV) IOCB received as an 8833 * ELS unsolicited event. It first checks the remote port state. If the 8834 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE 8835 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject 8836 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout 8837 * Value (RTV) unsolicited IOCB event. 8838 * 8839 * Note that the ndlp reference count will be incremented by 1 for holding the 8840 * ndlp and the reference to ndlp will be stored into the ndlp field of 8841 * the IOCB for the completion callback function to the RTV Accept Response 8842 * ELS IOCB command. 8843 * 8844 * Return codes 8845 * 0 - Successfully processed rtv iocb (currently always return 0) 8846 **/ 8847static int 8848lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8849 struct lpfc_nodelist *ndlp) 8850{ 8851 int rc = 0; 8852 IOCB_t *icmd; 8853 union lpfc_wqe128 *wqe; 8854 struct lpfc_hba *phba = vport->phba; 8855 struct ls_rjt stat; 8856 struct RTV_RSP *rtv_rsp; 8857 uint8_t *pcmd; 8858 struct lpfc_iocbq *elsiocb; 8859 uint32_t cmdsize; 8860 u32 ulp_context; 8861 8862 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 8863 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) 8864 /* reject the unsolicited RTV request and done with it */ 8865 goto reject_out; 8866 8867 cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t); 8868 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 8869 lpfc_max_els_tries, ndlp, 8870 ndlp->nlp_DID, ELS_CMD_ACC); 8871 8872 if (!elsiocb) 8873 return 1; 8874 8875 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 8876 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 8877 pcmd += sizeof(uint32_t); /* Skip past command */ 8878 8879 ulp_context = get_job_ulpcontext(phba, elsiocb); 8880 /* use the command's xri in the response */ 8881 if (phba->sli_rev == LPFC_SLI_REV4) { 8882 wqe = &elsiocb->wqe; 8883 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 8884 get_job_ulpcontext(phba, cmdiocb)); 8885 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 8886 get_job_rcvoxid(phba, cmdiocb)); 8887 } else { 8888 icmd = &elsiocb->iocb; 8889 icmd->ulpContext = get_job_ulpcontext(phba, cmdiocb); 8890 icmd->unsli3.rcvsli3.ox_id = get_job_rcvoxid(phba, cmdiocb); 8891 } 8892 8893 rtv_rsp = (struct RTV_RSP *)pcmd; 8894 8895 /* populate RTV payload */ 8896 rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */ 8897 rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov); 8898 bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0); 8899 bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */ 8900 rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov); 8901 8902 /* Xmit ELS RLS ACC response tag <ulpIoTag> */ 8903 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, 8904 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, " 8905 "did x%x, nlp_flag x%lx, nlp_state x%x, rpi x%x, " 8906 "Data: x%x x%x x%x\n", 8907 elsiocb->iotag, ulp_context, 8908 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 8909 ndlp->nlp_rpi, 8910 rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov); 8911 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 8912 phba->fc_stat.elsXmitACC++; 8913 elsiocb->ndlp = lpfc_nlp_get(ndlp); 8914 if (!elsiocb->ndlp) { 8915 lpfc_els_free_iocb(phba, elsiocb); 8916 return 0; 8917 } 8918 8919 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 8920 if (rc == IOCB_ERROR) { 8921 lpfc_els_free_iocb(phba, elsiocb); 8922 lpfc_nlp_put(ndlp); 8923 } 8924 return 0; 8925 8926reject_out: 8927 /* issue rejection response */ 8928 stat.un.b.lsRjtRsvd0 = 0; 8929 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8930 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8931 stat.un.b.vendorUnique = 0; 8932 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 8933 return 0; 8934} 8935 8936/* lpfc_issue_els_rrq - Process an unsolicited rrq iocb 8937 * @vport: pointer to a host virtual N_Port data structure. 8938 * @ndlp: pointer to a node-list data structure. 8939 * @did: DID of the target. 8940 * @rrq: Pointer to the rrq struct. 8941 * 8942 * Build a ELS RRQ command and send it to the target. If the issue_iocb is 8943 * successful, the completion handler will clear the RRQ. 8944 * 8945 * Return codes 8946 * 0 - Successfully sent rrq els iocb. 8947 * 1 - Failed to send rrq els iocb. 8948 **/ 8949static int 8950lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 8951 uint32_t did, struct lpfc_node_rrq *rrq) 8952{ 8953 struct lpfc_hba *phba = vport->phba; 8954 struct RRQ *els_rrq; 8955 struct lpfc_iocbq *elsiocb; 8956 uint8_t *pcmd; 8957 uint16_t cmdsize; 8958 int ret; 8959 8960 if (!ndlp) 8961 return 1; 8962 8963 /* If ndlp is not NULL, we will bump the reference count on it */ 8964 cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ)); 8965 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did, 8966 ELS_CMD_RRQ); 8967 if (!elsiocb) 8968 return 1; 8969 8970 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 8971 8972 /* For RRQ request, remainder of payload is Exchange IDs */ 8973 *((uint32_t *) (pcmd)) = ELS_CMD_RRQ; 8974 pcmd += sizeof(uint32_t); 8975 els_rrq = (struct RRQ *) pcmd; 8976 8977 bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]); 8978 bf_set(rrq_rxid, els_rrq, rrq->rxid); 8979 bf_set(rrq_did, els_rrq, vport->fc_myDID); 8980 els_rrq->rrq = cpu_to_be32(els_rrq->rrq); 8981 els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg); 8982 8983 8984 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 8985 "Issue RRQ: did:x%x", 8986 did, rrq->xritag, rrq->rxid); 8987 elsiocb->context_un.rrq = rrq; 8988 elsiocb->cmd_cmpl = lpfc_cmpl_els_rrq; 8989 8990 elsiocb->ndlp = lpfc_nlp_get(ndlp); 8991 if (!elsiocb->ndlp) 8992 goto io_err; 8993 8994 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 8995 if (ret == IOCB_ERROR) { 8996 lpfc_nlp_put(ndlp); 8997 goto io_err; 8998 } 8999 return 0; 9000 9001 io_err: 9002 lpfc_els_free_iocb(phba, elsiocb); 9003 return 1; 9004} 9005 9006/** 9007 * lpfc_send_rrq - Sends ELS RRQ if needed. 9008 * @phba: pointer to lpfc hba data structure. 9009 * @rrq: pointer to the active rrq. 9010 * 9011 * This routine will call the lpfc_issue_els_rrq if the rrq is 9012 * still active for the xri. If this function returns a failure then 9013 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq. 9014 * 9015 * Returns 0 Success. 9016 * 1 Failure. 9017 **/ 9018int 9019lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq) 9020{ 9021 struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport, 9022 rrq->nlp_DID); 9023 if (!ndlp) 9024 return 1; 9025 9026 if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag)) 9027 return lpfc_issue_els_rrq(rrq->vport, ndlp, 9028 rrq->nlp_DID, rrq); 9029 else 9030 return 1; 9031} 9032 9033/** 9034 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command 9035 * @vport: pointer to a host virtual N_Port data structure. 9036 * @cmdsize: size of the ELS command. 9037 * @oldiocb: pointer to the original lpfc command iocb data structure. 9038 * @ndlp: pointer to a node-list data structure. 9039 * 9040 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command. 9041 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL. 9042 * 9043 * Note that the ndlp reference count will be incremented by 1 for holding the 9044 * ndlp and the reference to ndlp will be stored into the ndlp field of 9045 * the IOCB for the completion callback function to the RPL Accept Response 9046 * ELS command. 9047 * 9048 * Return code 9049 * 0 - Successfully issued ACC RPL ELS command 9050 * 1 - Failed to issue ACC RPL ELS command 9051 **/ 9052static int 9053lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, 9054 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) 9055{ 9056 int rc = 0; 9057 struct lpfc_hba *phba = vport->phba; 9058 IOCB_t *icmd; 9059 union lpfc_wqe128 *wqe; 9060 RPL_RSP rpl_rsp; 9061 struct lpfc_iocbq *elsiocb; 9062 uint8_t *pcmd; 9063 u32 ulp_context; 9064 9065 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 9066 ndlp->nlp_DID, ELS_CMD_ACC); 9067 9068 if (!elsiocb) 9069 return 1; 9070 9071 ulp_context = get_job_ulpcontext(phba, elsiocb); 9072 if (phba->sli_rev == LPFC_SLI_REV4) { 9073 wqe = &elsiocb->wqe; 9074 /* Xri / rx_id */ 9075 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 9076 get_job_ulpcontext(phba, oldiocb)); 9077 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 9078 get_job_rcvoxid(phba, oldiocb)); 9079 } else { 9080 icmd = &elsiocb->iocb; 9081 icmd->ulpContext = get_job_ulpcontext(phba, oldiocb); 9082 icmd->unsli3.rcvsli3.ox_id = get_job_rcvoxid(phba, oldiocb); 9083 } 9084 9085 pcmd = elsiocb->cmd_dmabuf->virt; 9086 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 9087 pcmd += sizeof(uint16_t); 9088 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); 9089 pcmd += sizeof(uint16_t); 9090 9091 /* Setup the RPL ACC payload */ 9092 rpl_rsp.listLen = be32_to_cpu(1); 9093 rpl_rsp.index = 0; 9094 rpl_rsp.port_num_blk.portNum = 0; 9095 rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); 9096 memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, 9097 sizeof(struct lpfc_name)); 9098 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); 9099 /* Xmit ELS RPL ACC response tag <ulpIoTag> */ 9100 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9101 "0120 Xmit ELS RPL ACC response tag x%x " 9102 "xri x%x, did x%x, nlp_flag x%lx, nlp_state x%x, " 9103 "rpi x%x\n", 9104 elsiocb->iotag, ulp_context, 9105 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 9106 ndlp->nlp_rpi); 9107 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 9108 phba->fc_stat.elsXmitACC++; 9109 elsiocb->ndlp = lpfc_nlp_get(ndlp); 9110 if (!elsiocb->ndlp) { 9111 lpfc_els_free_iocb(phba, elsiocb); 9112 return 1; 9113 } 9114 9115 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 9116 if (rc == IOCB_ERROR) { 9117 lpfc_els_free_iocb(phba, elsiocb); 9118 lpfc_nlp_put(ndlp); 9119 return 1; 9120 } 9121 9122 return 0; 9123} 9124 9125/** 9126 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb 9127 * @vport: pointer to a host virtual N_Port data structure. 9128 * @cmdiocb: pointer to lpfc command iocb data structure. 9129 * @ndlp: pointer to a node-list data structure. 9130 * 9131 * This routine processes Read Port List (RPL) IOCB received as an ELS 9132 * unsolicited event. It first checks the remote port state. If the remote 9133 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it 9134 * invokes the lpfc_els_rsp_reject() routine to send reject response. 9135 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine 9136 * to accept the RPL. 9137 * 9138 * Return code 9139 * 0 - Successfully processed rpl iocb (currently always return 0) 9140 **/ 9141static int 9142lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9143 struct lpfc_nodelist *ndlp) 9144{ 9145 struct lpfc_dmabuf *pcmd; 9146 uint32_t *lp; 9147 uint32_t maxsize; 9148 uint16_t cmdsize; 9149 RPL *rpl; 9150 struct ls_rjt stat; 9151 9152 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 9153 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { 9154 /* issue rejection response */ 9155 stat.un.b.lsRjtRsvd0 = 0; 9156 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 9157 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 9158 stat.un.b.vendorUnique = 0; 9159 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 9160 NULL); 9161 /* rejected the unsolicited RPL request and done with it */ 9162 return 0; 9163 } 9164 9165 pcmd = cmdiocb->cmd_dmabuf; 9166 lp = (uint32_t *) pcmd->virt; 9167 rpl = (RPL *) (lp + 1); 9168 maxsize = be32_to_cpu(rpl->maxsize); 9169 9170 /* We support only one port */ 9171 if ((rpl->index == 0) && 9172 ((maxsize == 0) || 9173 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { 9174 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); 9175 } else { 9176 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); 9177 } 9178 lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); 9179 9180 return 0; 9181} 9182 9183/** 9184 * lpfc_els_rcv_farp - Process an unsolicited farp request els command 9185 * @vport: pointer to a virtual N_Port data structure. 9186 * @cmdiocb: pointer to lpfc command iocb data structure. 9187 * @ndlp: pointer to a node-list data structure. 9188 * 9189 * This routine processes Fibre Channel Address Resolution Protocol 9190 * (FARP) Request IOCB received as an ELS unsolicited event. Currently, 9191 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such, 9192 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the 9193 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the 9194 * remote PortName is compared against the FC PortName stored in the @vport 9195 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is 9196 * compared against the FC NodeName stored in the @vport data structure. 9197 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the 9198 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is 9199 * invoked to send out FARP Response to the remote node. Before sending the 9200 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP 9201 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi() 9202 * routine is invoked to log into the remote port first. 9203 * 9204 * Return code 9205 * 0 - Either the FARP Match Mode not supported or successfully processed 9206 **/ 9207static int 9208lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9209 struct lpfc_nodelist *ndlp) 9210{ 9211 struct lpfc_dmabuf *pcmd; 9212 uint32_t *lp; 9213 FARP *fp; 9214 uint32_t cnt, did; 9215 9216 did = get_job_els_rsp64_did(vport->phba, cmdiocb); 9217 pcmd = cmdiocb->cmd_dmabuf; 9218 lp = (uint32_t *) pcmd->virt; 9219 9220 lp++; 9221 fp = (FARP *) lp; 9222 /* FARP-REQ received from DID <did> */ 9223 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9224 "0601 FARP-REQ received from DID x%x\n", did); 9225 /* We will only support match on WWPN or WWNN */ 9226 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { 9227 return 0; 9228 } 9229 9230 cnt = 0; 9231 /* If this FARP command is searching for my portname */ 9232 if (fp->Mflags & FARP_MATCH_PORT) { 9233 if (memcmp(&fp->RportName, &vport->fc_portname, 9234 sizeof(struct lpfc_name)) == 0) 9235 cnt = 1; 9236 } 9237 9238 /* If this FARP command is searching for my nodename */ 9239 if (fp->Mflags & FARP_MATCH_NODE) { 9240 if (memcmp(&fp->RnodeName, &vport->fc_nodename, 9241 sizeof(struct lpfc_name)) == 0) 9242 cnt = 1; 9243 } 9244 9245 if (cnt) { 9246 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || 9247 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { 9248 /* Log back into the node before sending the FARP. */ 9249 if (fp->Rflags & FARP_REQUEST_PLOGI) { 9250 ndlp->nlp_prev_state = ndlp->nlp_state; 9251 lpfc_nlp_set_state(vport, ndlp, 9252 NLP_STE_PLOGI_ISSUE); 9253 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 9254 } 9255 9256 /* Send a FARP response to that node */ 9257 if (fp->Rflags & FARP_REQUEST_FARPR) 9258 lpfc_issue_els_farpr(vport, did, 0); 9259 } 9260 } 9261 return 0; 9262} 9263 9264/** 9265 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb 9266 * @vport: pointer to a host virtual N_Port data structure. 9267 * @cmdiocb: pointer to lpfc command iocb data structure. 9268 * @ndlp: pointer to a node-list data structure. 9269 * 9270 * This routine processes Fibre Channel Address Resolution Protocol 9271 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply 9272 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept 9273 * the FARP response request. 9274 * 9275 * Return code 9276 * 0 - Successfully processed FARPR IOCB (currently always return 0) 9277 **/ 9278static int 9279lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9280 struct lpfc_nodelist *ndlp) 9281{ 9282 uint32_t did; 9283 9284 did = get_job_els_rsp64_did(vport->phba, cmdiocb); 9285 9286 /* FARP-RSP received from DID <did> */ 9287 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9288 "0600 FARP-RSP received from DID x%x\n", did); 9289 /* ACCEPT the Farp resp request */ 9290 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 9291 9292 return 0; 9293} 9294 9295/** 9296 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command 9297 * @vport: pointer to a host virtual N_Port data structure. 9298 * @cmdiocb: pointer to lpfc command iocb data structure. 9299 * @fan_ndlp: pointer to a node-list data structure. 9300 * 9301 * This routine processes a Fabric Address Notification (FAN) IOCB 9302 * command received as an ELS unsolicited event. The FAN ELS command will 9303 * only be processed on a physical port (i.e., the @vport represents the 9304 * physical port). The fabric NodeName and PortName from the FAN IOCB are 9305 * compared against those in the phba data structure. If any of those is 9306 * different, the lpfc_initial_flogi() routine is invoked to initialize 9307 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise, 9308 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine 9309 * is invoked to register login to the fabric. 9310 * 9311 * Return code 9312 * 0 - Successfully processed fan iocb (currently always return 0). 9313 **/ 9314static int 9315lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9316 struct lpfc_nodelist *fan_ndlp) 9317{ 9318 struct lpfc_hba *phba = vport->phba; 9319 uint32_t *lp; 9320 FAN *fp; 9321 9322 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); 9323 lp = (uint32_t *)cmdiocb->cmd_dmabuf->virt; 9324 fp = (FAN *) ++lp; 9325 /* FAN received; Fan does not have a reply sequence */ 9326 if ((vport == phba->pport) && 9327 (vport->port_state == LPFC_LOCAL_CFG_LINK)) { 9328 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, 9329 sizeof(struct lpfc_name))) || 9330 (memcmp(&phba->fc_fabparam.portName, &fp->FportName, 9331 sizeof(struct lpfc_name)))) { 9332 /* This port has switched fabrics. FLOGI is required */ 9333 lpfc_issue_init_vfi(vport); 9334 } else { 9335 /* FAN verified - skip FLOGI */ 9336 vport->fc_myDID = vport->fc_prevDID; 9337 if (phba->sli_rev < LPFC_SLI_REV4) 9338 lpfc_issue_fabric_reglogin(vport); 9339 else { 9340 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9341 "3138 Need register VFI: (x%x/%x)\n", 9342 vport->fc_prevDID, vport->fc_myDID); 9343 lpfc_issue_reg_vfi(vport); 9344 } 9345 } 9346 } 9347 return 0; 9348} 9349 9350/** 9351 * lpfc_els_rcv_edc - Process an unsolicited EDC iocb 9352 * @vport: pointer to a host virtual N_Port data structure. 9353 * @cmdiocb: pointer to lpfc command iocb data structure. 9354 * @ndlp: pointer to a node-list data structure. 9355 * 9356 * Return code 9357 * 0 - Successfully processed echo iocb (currently always return 0) 9358 **/ 9359static int 9360lpfc_els_rcv_edc(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9361 struct lpfc_nodelist *ndlp) 9362{ 9363 struct lpfc_hba *phba = vport->phba; 9364 struct fc_els_edc *edc_req; 9365 struct fc_tlv_desc *tlv; 9366 uint8_t *payload; 9367 uint32_t *ptr, dtag; 9368 const char *dtag_nm; 9369 int desc_cnt = 0, bytes_remain; 9370 struct fc_diag_lnkflt_desc *plnkflt; 9371 9372 payload = cmdiocb->cmd_dmabuf->virt; 9373 9374 edc_req = (struct fc_els_edc *)payload; 9375 bytes_remain = be32_to_cpu(edc_req->desc_len); 9376 9377 ptr = (uint32_t *)payload; 9378 lpfc_printf_vlog(vport, KERN_INFO, 9379 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9380 "3319 Rcv EDC payload len %d: x%x x%x x%x\n", 9381 bytes_remain, be32_to_cpu(*ptr), 9382 be32_to_cpu(*(ptr + 1)), be32_to_cpu(*(ptr + 2))); 9383 9384 /* No signal support unless there is a congestion descriptor */ 9385 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 9386 phba->cgn_sig_freq = 0; 9387 phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN; 9388 9389 if (bytes_remain <= 0) 9390 goto out; 9391 9392 tlv = edc_req->desc; 9393 9394 /* 9395 * cycle through EDC diagnostic descriptors to find the 9396 * congestion signaling capability descriptor 9397 */ 9398 while (bytes_remain) { 9399 if (bytes_remain < FC_TLV_DESC_HDR_SZ) { 9400 lpfc_printf_log(phba, KERN_WARNING, 9401 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9402 "6464 Truncated TLV hdr on " 9403 "Diagnostic descriptor[%d]\n", 9404 desc_cnt); 9405 goto out; 9406 } 9407 9408 dtag = be32_to_cpu(tlv->desc_tag); 9409 switch (dtag) { 9410 case ELS_DTAG_LNK_FAULT_CAP: 9411 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 9412 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 9413 sizeof(struct fc_diag_lnkflt_desc)) { 9414 lpfc_printf_log(phba, KERN_WARNING, 9415 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9416 "6465 Truncated Link Fault Diagnostic " 9417 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 9418 desc_cnt, bytes_remain, 9419 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 9420 sizeof(struct fc_diag_lnkflt_desc)); 9421 goto out; 9422 } 9423 plnkflt = (struct fc_diag_lnkflt_desc *)tlv; 9424 lpfc_printf_log(phba, KERN_INFO, 9425 LOG_ELS | LOG_LDS_EVENT, 9426 "4626 Link Fault Desc Data: x%08x len x%x " 9427 "da x%x dd x%x interval x%x\n", 9428 be32_to_cpu(plnkflt->desc_tag), 9429 be32_to_cpu(plnkflt->desc_len), 9430 be32_to_cpu( 9431 plnkflt->degrade_activate_threshold), 9432 be32_to_cpu( 9433 plnkflt->degrade_deactivate_threshold), 9434 be32_to_cpu(plnkflt->fec_degrade_interval)); 9435 break; 9436 case ELS_DTAG_CG_SIGNAL_CAP: 9437 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 9438 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 9439 sizeof(struct fc_diag_cg_sig_desc)) { 9440 lpfc_printf_log( 9441 phba, KERN_WARNING, LOG_CGN_MGMT, 9442 "6466 Truncated cgn signal Diagnostic " 9443 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 9444 desc_cnt, bytes_remain, 9445 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 9446 sizeof(struct fc_diag_cg_sig_desc)); 9447 goto out; 9448 } 9449 9450 phba->cgn_reg_fpin = phba->cgn_init_reg_fpin; 9451 phba->cgn_reg_signal = phba->cgn_init_reg_signal; 9452 9453 /* We start negotiation with lpfc_fabric_cgn_frequency. 9454 * When we process the EDC, we will settle on the 9455 * higher frequency. 9456 */ 9457 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency; 9458 9459 lpfc_least_capable_settings( 9460 phba, (struct fc_diag_cg_sig_desc *)tlv); 9461 break; 9462 default: 9463 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 9464 lpfc_printf_log(phba, KERN_WARNING, 9465 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9466 "6467 unknown Diagnostic " 9467 "Descriptor[%d]: tag x%x (%s)\n", 9468 desc_cnt, dtag, dtag_nm); 9469 } 9470 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv); 9471 tlv = fc_tlv_next_desc(tlv); 9472 desc_cnt++; 9473 } 9474out: 9475 /* Need to send back an ACC */ 9476 lpfc_issue_els_edc_rsp(vport, cmdiocb, ndlp); 9477 9478 lpfc_config_cgn_signal(phba); 9479 return 0; 9480} 9481 9482/** 9483 * lpfc_els_timeout - Handler funciton to the els timer 9484 * @t: timer context used to obtain the vport. 9485 * 9486 * This routine is invoked by the ELS timer after timeout. It posts the ELS 9487 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port 9488 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake 9489 * up the worker thread. It is for the worker thread to invoke the routine 9490 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO. 9491 **/ 9492void 9493lpfc_els_timeout(struct timer_list *t) 9494{ 9495 struct lpfc_vport *vport = timer_container_of(vport, t, els_tmofunc); 9496 struct lpfc_hba *phba = vport->phba; 9497 uint32_t tmo_posted; 9498 unsigned long iflag; 9499 9500 spin_lock_irqsave(&vport->work_port_lock, iflag); 9501 tmo_posted = vport->work_port_events & WORKER_ELS_TMO; 9502 if (!tmo_posted && !test_bit(FC_UNLOADING, &vport->load_flag)) 9503 vport->work_port_events |= WORKER_ELS_TMO; 9504 spin_unlock_irqrestore(&vport->work_port_lock, iflag); 9505 9506 if (!tmo_posted && !test_bit(FC_UNLOADING, &vport->load_flag)) 9507 lpfc_worker_wake_up(phba); 9508 return; 9509} 9510 9511 9512/** 9513 * lpfc_els_timeout_handler - Process an els timeout event 9514 * @vport: pointer to a virtual N_Port data structure. 9515 * 9516 * This routine is the actual handler function that processes an ELS timeout 9517 * event. It walks the ELS ring to get and abort all the IOCBs (except the 9518 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by 9519 * invoking the lpfc_sli_issue_abort_iotag() routine. 9520 **/ 9521void 9522lpfc_els_timeout_handler(struct lpfc_vport *vport) 9523{ 9524 struct lpfc_hba *phba = vport->phba; 9525 struct lpfc_sli_ring *pring; 9526 struct lpfc_iocbq *tmp_iocb, *piocb; 9527 IOCB_t *cmd = NULL; 9528 struct lpfc_dmabuf *pcmd; 9529 uint32_t els_command = 0; 9530 uint32_t timeout; 9531 uint32_t remote_ID = 0xffffffff; 9532 LIST_HEAD(abort_list); 9533 u32 ulp_command = 0, ulp_context = 0, did = 0, iotag = 0; 9534 9535 9536 timeout = (uint32_t)(phba->fc_ratov << 1); 9537 9538 pring = lpfc_phba_elsring(phba); 9539 if (unlikely(!pring)) 9540 return; 9541 9542 if (test_bit(FC_UNLOADING, &phba->pport->load_flag)) 9543 return; 9544 9545 spin_lock_irq(&phba->hbalock); 9546 if (phba->sli_rev == LPFC_SLI_REV4) 9547 spin_lock(&pring->ring_lock); 9548 9549 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { 9550 ulp_command = get_job_cmnd(phba, piocb); 9551 ulp_context = get_job_ulpcontext(phba, piocb); 9552 did = get_job_els_rsp64_did(phba, piocb); 9553 9554 if (phba->sli_rev == LPFC_SLI_REV4) { 9555 iotag = get_wqe_reqtag(piocb); 9556 } else { 9557 cmd = &piocb->iocb; 9558 iotag = cmd->ulpIoTag; 9559 } 9560 9561 if ((piocb->cmd_flag & LPFC_IO_LIBDFC) != 0 || 9562 ulp_command == CMD_ABORT_XRI_CX || 9563 ulp_command == CMD_ABORT_XRI_CN || 9564 ulp_command == CMD_CLOSE_XRI_CN) 9565 continue; 9566 9567 if (piocb->vport != vport) 9568 continue; 9569 9570 pcmd = piocb->cmd_dmabuf; 9571 if (pcmd) 9572 els_command = *(uint32_t *) (pcmd->virt); 9573 9574 if (els_command == ELS_CMD_FARP || 9575 els_command == ELS_CMD_FARPR || 9576 els_command == ELS_CMD_FDISC) 9577 continue; 9578 9579 if (piocb->drvrTimeout > 0) { 9580 if (piocb->drvrTimeout >= timeout) 9581 piocb->drvrTimeout -= timeout; 9582 else 9583 piocb->drvrTimeout = 0; 9584 continue; 9585 } 9586 9587 remote_ID = 0xffffffff; 9588 if (ulp_command != CMD_GEN_REQUEST64_CR) { 9589 remote_ID = did; 9590 } else { 9591 struct lpfc_nodelist *ndlp; 9592 ndlp = __lpfc_findnode_rpi(vport, ulp_context); 9593 if (ndlp) 9594 remote_ID = ndlp->nlp_DID; 9595 } 9596 list_add_tail(&piocb->dlist, &abort_list); 9597 } 9598 if (phba->sli_rev == LPFC_SLI_REV4) 9599 spin_unlock(&pring->ring_lock); 9600 spin_unlock_irq(&phba->hbalock); 9601 9602 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { 9603 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9604 "0127 ELS timeout Data: x%x x%x x%x " 9605 "x%x\n", els_command, 9606 remote_ID, ulp_command, iotag); 9607 9608 spin_lock_irq(&phba->hbalock); 9609 list_del_init(&piocb->dlist); 9610 lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL); 9611 spin_unlock_irq(&phba->hbalock); 9612 } 9613 9614 /* Make sure HBA is alive */ 9615 lpfc_issue_hb_tmo(phba); 9616 9617 if (!list_empty(&pring->txcmplq)) 9618 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag)) 9619 mod_timer(&vport->els_tmofunc, 9620 jiffies + secs_to_jiffies(timeout)); 9621} 9622 9623/** 9624 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport 9625 * @vport: pointer to a host virtual N_Port data structure. 9626 * 9627 * This routine is used to clean up all the outstanding ELS commands on a 9628 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport() 9629 * routine. After that, it walks the ELS transmit queue to remove all the 9630 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For 9631 * the IOCBs with a non-NULL completion callback function, the callback 9632 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and 9633 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion 9634 * callback function, the IOCB will simply be released. Finally, it walks 9635 * the ELS transmit completion queue to issue an abort IOCB to any transmit 9636 * completion queue IOCB that is associated with the @vport and is not 9637 * an IOCB from libdfc (i.e., the management plane IOCBs that are not 9638 * part of the discovery state machine) out to HBA by invoking the 9639 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the 9640 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee 9641 * the IOCBs are aborted when this function returns. 9642 **/ 9643void 9644lpfc_els_flush_cmd(struct lpfc_vport *vport) 9645{ 9646 LIST_HEAD(abort_list); 9647 LIST_HEAD(cancel_list); 9648 struct lpfc_hba *phba = vport->phba; 9649 struct lpfc_sli_ring *pring; 9650 struct lpfc_iocbq *tmp_iocb, *piocb; 9651 u32 ulp_command; 9652 unsigned long iflags = 0; 9653 bool mbx_tmo_err; 9654 9655 lpfc_fabric_abort_vport(vport); 9656 9657 /* 9658 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate 9659 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag 9660 * ultimately grabs the ring_lock, the driver must splice the list into 9661 * a working list and release the locks before calling the abort. 9662 */ 9663 spin_lock_irqsave(&phba->hbalock, iflags); 9664 pring = lpfc_phba_elsring(phba); 9665 9666 /* Bail out if we've no ELS wq, like in PCI error recovery case. */ 9667 if (unlikely(!pring)) { 9668 spin_unlock_irqrestore(&phba->hbalock, iflags); 9669 return; 9670 } 9671 9672 if (phba->sli_rev == LPFC_SLI_REV4) 9673 spin_lock(&pring->ring_lock); 9674 9675 mbx_tmo_err = test_bit(MBX_TMO_ERR, &phba->bit_flags); 9676 /* First we need to issue aborts to outstanding cmds on txcmpl */ 9677 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { 9678 if (piocb->vport != vport) 9679 continue; 9680 9681 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9682 "2243 iotag = 0x%x cmd_flag = 0x%x " 9683 "ulp_command = 0x%x sli_flag = 0x%x\n", 9684 piocb->iotag, piocb->cmd_flag, 9685 get_job_cmnd(phba, piocb), 9686 phba->sli.sli_flag); 9687 9688 if ((phba->sli.sli_flag & LPFC_SLI_ACTIVE) && !mbx_tmo_err) { 9689 if (piocb->cmd_flag & LPFC_IO_LIBDFC) 9690 continue; 9691 if (piocb->cmd_flag & LPFC_DRIVER_ABORTED) 9692 continue; 9693 } 9694 9695 /* On the ELS ring we can have ELS_REQUESTs, ELS_RSPs, 9696 * or GEN_REQUESTs waiting for a CQE response. 9697 */ 9698 ulp_command = get_job_cmnd(phba, piocb); 9699 if (ulp_command == CMD_ELS_REQUEST64_WQE || 9700 ulp_command == CMD_XMIT_ELS_RSP64_WQE) { 9701 list_add_tail(&piocb->dlist, &abort_list); 9702 9703 /* If the link is down when flushing ELS commands 9704 * the firmware will not complete them till after 9705 * the link comes back up. This may confuse 9706 * discovery for the new link up, so we need to 9707 * change the compl routine to just clean up the iocb 9708 * and avoid any retry logic. 9709 */ 9710 if (phba->link_state == LPFC_LINK_DOWN) 9711 piocb->cmd_cmpl = lpfc_cmpl_els_link_down; 9712 } else if (ulp_command == CMD_GEN_REQUEST64_CR || 9713 mbx_tmo_err) 9714 list_add_tail(&piocb->dlist, &abort_list); 9715 } 9716 9717 if (phba->sli_rev == LPFC_SLI_REV4) 9718 spin_unlock(&pring->ring_lock); 9719 spin_unlock_irqrestore(&phba->hbalock, iflags); 9720 9721 /* Abort each txcmpl iocb on aborted list and remove the dlist links. */ 9722 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { 9723 spin_lock_irqsave(&phba->hbalock, iflags); 9724 list_del_init(&piocb->dlist); 9725 if (mbx_tmo_err || !(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) 9726 list_move_tail(&piocb->list, &cancel_list); 9727 else 9728 lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL); 9729 9730 spin_unlock_irqrestore(&phba->hbalock, iflags); 9731 } 9732 if (!list_empty(&cancel_list)) 9733 lpfc_sli_cancel_iocbs(phba, &cancel_list, IOSTAT_LOCAL_REJECT, 9734 IOERR_SLI_ABORTED); 9735 else 9736 /* Make sure HBA is alive */ 9737 lpfc_issue_hb_tmo(phba); 9738 9739 if (!list_empty(&abort_list)) 9740 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9741 "3387 abort list for txq not empty\n"); 9742 INIT_LIST_HEAD(&abort_list); 9743 9744 spin_lock_irqsave(&phba->hbalock, iflags); 9745 if (phba->sli_rev == LPFC_SLI_REV4) 9746 spin_lock(&pring->ring_lock); 9747 9748 /* No need to abort the txq list, 9749 * just queue them up for lpfc_sli_cancel_iocbs 9750 */ 9751 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { 9752 ulp_command = get_job_cmnd(phba, piocb); 9753 9754 if (piocb->cmd_flag & LPFC_IO_LIBDFC) 9755 continue; 9756 9757 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ 9758 if (ulp_command == CMD_QUE_RING_BUF_CN || 9759 ulp_command == CMD_QUE_RING_BUF64_CN || 9760 ulp_command == CMD_CLOSE_XRI_CN || 9761 ulp_command == CMD_ABORT_XRI_CN || 9762 ulp_command == CMD_ABORT_XRI_CX) 9763 continue; 9764 9765 if (piocb->vport != vport) 9766 continue; 9767 9768 list_del_init(&piocb->list); 9769 list_add_tail(&piocb->list, &abort_list); 9770 } 9771 9772 /* The same holds true for any FLOGI/FDISC on the fabric_iocb_list */ 9773 if (vport == phba->pport) { 9774 list_for_each_entry_safe(piocb, tmp_iocb, 9775 &phba->fabric_iocb_list, list) { 9776 list_del_init(&piocb->list); 9777 list_add_tail(&piocb->list, &abort_list); 9778 } 9779 } 9780 9781 if (phba->sli_rev == LPFC_SLI_REV4) 9782 spin_unlock(&pring->ring_lock); 9783 spin_unlock_irqrestore(&phba->hbalock, iflags); 9784 9785 /* Cancel all the IOCBs from the completions list */ 9786 lpfc_sli_cancel_iocbs(phba, &abort_list, 9787 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 9788 9789 return; 9790} 9791 9792/** 9793 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA 9794 * @phba: pointer to lpfc hba data structure. 9795 * 9796 * This routine is used to clean up all the outstanding ELS commands on a 9797 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba() 9798 * routine. After that, it walks the ELS transmit queue to remove all the 9799 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For 9800 * the IOCBs with the completion callback function associated, the callback 9801 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and 9802 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion 9803 * callback function associated, the IOCB will simply be released. Finally, 9804 * it walks the ELS transmit completion queue to issue an abort IOCB to any 9805 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the 9806 * management plane IOCBs that are not part of the discovery state machine) 9807 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine. 9808 **/ 9809void 9810lpfc_els_flush_all_cmd(struct lpfc_hba *phba) 9811{ 9812 struct lpfc_vport *vport; 9813 9814 spin_lock_irq(&phba->port_list_lock); 9815 list_for_each_entry(vport, &phba->port_list, listentry) 9816 lpfc_els_flush_cmd(vport); 9817 spin_unlock_irq(&phba->port_list_lock); 9818 9819 return; 9820} 9821 9822/** 9823 * lpfc_send_els_failure_event - Posts an ELS command failure event 9824 * @phba: Pointer to hba context object. 9825 * @cmdiocbp: Pointer to command iocb which reported error. 9826 * @rspiocbp: Pointer to response iocb which reported error. 9827 * 9828 * This function sends an event when there is an ELS command 9829 * failure. 9830 **/ 9831void 9832lpfc_send_els_failure_event(struct lpfc_hba *phba, 9833 struct lpfc_iocbq *cmdiocbp, 9834 struct lpfc_iocbq *rspiocbp) 9835{ 9836 struct lpfc_vport *vport = cmdiocbp->vport; 9837 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 9838 struct lpfc_lsrjt_event lsrjt_event; 9839 struct lpfc_fabric_event_header fabric_event; 9840 struct ls_rjt stat; 9841 struct lpfc_nodelist *ndlp; 9842 uint32_t *pcmd; 9843 u32 ulp_status, ulp_word4; 9844 9845 ndlp = cmdiocbp->ndlp; 9846 if (!ndlp) 9847 return; 9848 9849 ulp_status = get_job_ulpstatus(phba, rspiocbp); 9850 ulp_word4 = get_job_word4(phba, rspiocbp); 9851 9852 if (ulp_status == IOSTAT_LS_RJT) { 9853 lsrjt_event.header.event_type = FC_REG_ELS_EVENT; 9854 lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV; 9855 memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname, 9856 sizeof(struct lpfc_name)); 9857 memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename, 9858 sizeof(struct lpfc_name)); 9859 pcmd = (uint32_t *)cmdiocbp->cmd_dmabuf->virt; 9860 lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0; 9861 stat.un.ls_rjt_error_be = cpu_to_be32(ulp_word4); 9862 lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode; 9863 lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp; 9864 fc_host_post_vendor_event(shost, 9865 fc_get_event_number(), 9866 sizeof(lsrjt_event), 9867 (char *)&lsrjt_event, 9868 LPFC_NL_VENDOR_ID); 9869 return; 9870 } 9871 if (ulp_status == IOSTAT_NPORT_BSY || 9872 ulp_status == IOSTAT_FABRIC_BSY) { 9873 fabric_event.event_type = FC_REG_FABRIC_EVENT; 9874 if (ulp_status == IOSTAT_NPORT_BSY) 9875 fabric_event.subcategory = LPFC_EVENT_PORT_BUSY; 9876 else 9877 fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY; 9878 memcpy(fabric_event.wwpn, &ndlp->nlp_portname, 9879 sizeof(struct lpfc_name)); 9880 memcpy(fabric_event.wwnn, &ndlp->nlp_nodename, 9881 sizeof(struct lpfc_name)); 9882 fc_host_post_vendor_event(shost, 9883 fc_get_event_number(), 9884 sizeof(fabric_event), 9885 (char *)&fabric_event, 9886 LPFC_NL_VENDOR_ID); 9887 return; 9888 } 9889 9890} 9891 9892/** 9893 * lpfc_send_els_event - Posts unsolicited els event 9894 * @vport: Pointer to vport object. 9895 * @ndlp: Pointer FC node object. 9896 * @payload: ELS command code type. 9897 * 9898 * This function posts an event when there is an incoming 9899 * unsolicited ELS command. 9900 **/ 9901static void 9902lpfc_send_els_event(struct lpfc_vport *vport, 9903 struct lpfc_nodelist *ndlp, 9904 uint32_t *payload) 9905{ 9906 struct lpfc_els_event_header *els_data = NULL; 9907 struct lpfc_logo_event *logo_data = NULL; 9908 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 9909 9910 if (*payload == ELS_CMD_LOGO) { 9911 logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL); 9912 if (!logo_data) { 9913 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9914 "0148 Failed to allocate memory " 9915 "for LOGO event\n"); 9916 return; 9917 } 9918 els_data = &logo_data->header; 9919 } else { 9920 els_data = kmalloc(sizeof(struct lpfc_els_event_header), 9921 GFP_KERNEL); 9922 if (!els_data) { 9923 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9924 "0149 Failed to allocate memory " 9925 "for ELS event\n"); 9926 return; 9927 } 9928 } 9929 els_data->event_type = FC_REG_ELS_EVENT; 9930 switch (*payload) { 9931 case ELS_CMD_PLOGI: 9932 els_data->subcategory = LPFC_EVENT_PLOGI_RCV; 9933 break; 9934 case ELS_CMD_PRLO: 9935 els_data->subcategory = LPFC_EVENT_PRLO_RCV; 9936 break; 9937 case ELS_CMD_ADISC: 9938 els_data->subcategory = LPFC_EVENT_ADISC_RCV; 9939 break; 9940 case ELS_CMD_LOGO: 9941 els_data->subcategory = LPFC_EVENT_LOGO_RCV; 9942 /* Copy the WWPN in the LOGO payload */ 9943 memcpy(logo_data->logo_wwpn, &payload[2], 9944 sizeof(struct lpfc_name)); 9945 break; 9946 default: 9947 kfree(els_data); 9948 return; 9949 } 9950 memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); 9951 memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); 9952 if (*payload == ELS_CMD_LOGO) { 9953 fc_host_post_vendor_event(shost, 9954 fc_get_event_number(), 9955 sizeof(struct lpfc_logo_event), 9956 (char *)logo_data, 9957 LPFC_NL_VENDOR_ID); 9958 kfree(logo_data); 9959 } else { 9960 fc_host_post_vendor_event(shost, 9961 fc_get_event_number(), 9962 sizeof(struct lpfc_els_event_header), 9963 (char *)els_data, 9964 LPFC_NL_VENDOR_ID); 9965 kfree(els_data); 9966 } 9967 9968 return; 9969} 9970 9971 9972DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_li_event_nm, fc_fpin_li_event_types, 9973 FC_FPIN_LI_EVT_TYPES_INIT); 9974 9975DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_deli_event_nm, fc_fpin_deli_event_types, 9976 FC_FPIN_DELI_EVT_TYPES_INIT); 9977 9978DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_congn_event_nm, fc_fpin_congn_event_types, 9979 FC_FPIN_CONGN_EVT_TYPES_INIT); 9980 9981DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_congn_severity_nm, 9982 fc_fpin_congn_severity_types, 9983 FC_FPIN_CONGN_SEVERITY_INIT); 9984 9985 9986/** 9987 * lpfc_display_fpin_wwpn - Display WWPNs accessible by the attached port 9988 * @phba: Pointer to phba object. 9989 * @wwnlist: Pointer to list of WWPNs in FPIN payload 9990 * @cnt: count of WWPNs in FPIN payload 9991 * 9992 * This routine is called by LI and PC descriptors. 9993 * Limit the number of WWPNs displayed to 6 log messages, 6 per log message 9994 */ 9995static void 9996lpfc_display_fpin_wwpn(struct lpfc_hba *phba, __be64 *wwnlist, u32 cnt) 9997{ 9998 char buf[LPFC_FPIN_WWPN_LINE_SZ]; 9999 __be64 wwn; 10000 u64 wwpn; 10001 int i, len; 10002 int line = 0; 10003 int wcnt = 0; 10004 bool endit = false; 10005 10006 len = scnprintf(buf, LPFC_FPIN_WWPN_LINE_SZ, "Accessible WWPNs:"); 10007 for (i = 0; i < cnt; i++) { 10008 /* Are we on the last WWPN */ 10009 if (i == (cnt - 1)) 10010 endit = true; 10011 10012 /* Extract the next WWPN from the payload */ 10013 wwn = *wwnlist++; 10014 wwpn = be64_to_cpu(wwn); 10015 len += scnprintf(buf + len, LPFC_FPIN_WWPN_LINE_SZ - len, 10016 " %016llx", wwpn); 10017 10018 /* Log a message if we are on the last WWPN 10019 * or if we hit the max allowed per message. 10020 */ 10021 wcnt++; 10022 if (wcnt == LPFC_FPIN_WWPN_LINE_CNT || endit) { 10023 buf[len] = 0; 10024 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 10025 "4686 %s\n", buf); 10026 10027 /* Check if we reached the last WWPN */ 10028 if (endit) 10029 return; 10030 10031 /* Limit the number of log message displayed per FPIN */ 10032 line++; 10033 if (line == LPFC_FPIN_WWPN_NUM_LINE) { 10034 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 10035 "4687 %d WWPNs Truncated\n", 10036 cnt - i - 1); 10037 return; 10038 } 10039 10040 /* Start over with next log message */ 10041 wcnt = 0; 10042 len = scnprintf(buf, LPFC_FPIN_WWPN_LINE_SZ, 10043 "Additional WWPNs:"); 10044 } 10045 } 10046} 10047 10048/** 10049 * lpfc_els_rcv_fpin_li - Process an FPIN Link Integrity Event. 10050 * @phba: Pointer to phba object. 10051 * @tlv: Pointer to the Link Integrity Notification Descriptor. 10052 * 10053 * This function processes a Link Integrity FPIN event by logging a message. 10054 **/ 10055static void 10056lpfc_els_rcv_fpin_li(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 10057{ 10058 struct fc_fn_li_desc *li = (struct fc_fn_li_desc *)tlv; 10059 const char *li_evt_str; 10060 u32 li_evt, cnt; 10061 10062 li_evt = be16_to_cpu(li->event_type); 10063 li_evt_str = lpfc_get_fpin_li_event_nm(li_evt); 10064 cnt = be32_to_cpu(li->pname_count); 10065 10066 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 10067 "4680 FPIN Link Integrity %s (x%x) " 10068 "Detecting PN x%016llx Attached PN x%016llx " 10069 "Duration %d mSecs Count %d Port Cnt %d\n", 10070 li_evt_str, li_evt, 10071 be64_to_cpu(li->detecting_wwpn), 10072 be64_to_cpu(li->attached_wwpn), 10073 be32_to_cpu(li->event_threshold), 10074 be32_to_cpu(li->event_count), cnt); 10075 10076 lpfc_display_fpin_wwpn(phba, (__be64 *)&li->pname_list, cnt); 10077} 10078 10079/** 10080 * lpfc_els_rcv_fpin_del - Process an FPIN Delivery Event. 10081 * @phba: Pointer to hba object. 10082 * @tlv: Pointer to the Delivery Notification Descriptor TLV 10083 * 10084 * This function processes a Delivery FPIN event by logging a message. 10085 **/ 10086static void 10087lpfc_els_rcv_fpin_del(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 10088{ 10089 struct fc_fn_deli_desc *del = (struct fc_fn_deli_desc *)tlv; 10090 const char *del_rsn_str; 10091 u32 del_rsn; 10092 __be32 *frame; 10093 10094 del_rsn = be16_to_cpu(del->deli_reason_code); 10095 del_rsn_str = lpfc_get_fpin_deli_event_nm(del_rsn); 10096 10097 /* Skip over desc_tag/desc_len header to payload */ 10098 frame = (__be32 *)(del + 1); 10099 10100 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 10101 "4681 FPIN Delivery %s (x%x) " 10102 "Detecting PN x%016llx Attached PN x%016llx " 10103 "DiscHdr0 x%08x " 10104 "DiscHdr1 x%08x DiscHdr2 x%08x DiscHdr3 x%08x " 10105 "DiscHdr4 x%08x DiscHdr5 x%08x\n", 10106 del_rsn_str, del_rsn, 10107 be64_to_cpu(del->detecting_wwpn), 10108 be64_to_cpu(del->attached_wwpn), 10109 be32_to_cpu(frame[0]), 10110 be32_to_cpu(frame[1]), 10111 be32_to_cpu(frame[2]), 10112 be32_to_cpu(frame[3]), 10113 be32_to_cpu(frame[4]), 10114 be32_to_cpu(frame[5])); 10115} 10116 10117/** 10118 * lpfc_els_rcv_fpin_peer_cgn - Process a FPIN Peer Congestion Event. 10119 * @phba: Pointer to hba object. 10120 * @tlv: Pointer to the Peer Congestion Notification Descriptor TLV 10121 * 10122 * This function processes a Peer Congestion FPIN event by logging a message. 10123 **/ 10124static void 10125lpfc_els_rcv_fpin_peer_cgn(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 10126{ 10127 struct fc_fn_peer_congn_desc *pc = (struct fc_fn_peer_congn_desc *)tlv; 10128 const char *pc_evt_str; 10129 u32 pc_evt, cnt; 10130 10131 pc_evt = be16_to_cpu(pc->event_type); 10132 pc_evt_str = lpfc_get_fpin_congn_event_nm(pc_evt); 10133 cnt = be32_to_cpu(pc->pname_count); 10134 10135 /* Capture FPIN frequency */ 10136 phba->cgn_fpin_frequency = be32_to_cpu(pc->event_period); 10137 10138 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_ELS, 10139 "4684 FPIN Peer Congestion %s (x%x) " 10140 "Duration %d mSecs " 10141 "Detecting PN x%016llx Attached PN x%016llx " 10142 "Impacted Port Cnt %d\n", 10143 pc_evt_str, pc_evt, 10144 be32_to_cpu(pc->event_period), 10145 be64_to_cpu(pc->detecting_wwpn), 10146 be64_to_cpu(pc->attached_wwpn), 10147 cnt); 10148 10149 lpfc_display_fpin_wwpn(phba, (__be64 *)&pc->pname_list, cnt); 10150} 10151 10152/** 10153 * lpfc_els_rcv_fpin_cgn - Process an FPIN Congestion notification 10154 * @phba: Pointer to hba object. 10155 * @tlv: Pointer to the Congestion Notification Descriptor TLV 10156 * 10157 * This function processes an FPIN Congestion Notifiction. The notification 10158 * could be an Alarm or Warning. This routine feeds that data into driver's 10159 * running congestion algorithm. It also processes the FPIN by 10160 * logging a message. It returns 1 to indicate deliver this message 10161 * to the upper layer or 0 to indicate don't deliver it. 10162 **/ 10163static int 10164lpfc_els_rcv_fpin_cgn(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 10165{ 10166 struct lpfc_cgn_info *cp; 10167 struct fc_fn_congn_desc *cgn = (struct fc_fn_congn_desc *)tlv; 10168 const char *cgn_evt_str; 10169 u32 cgn_evt; 10170 const char *cgn_sev_str; 10171 u32 cgn_sev; 10172 uint16_t value; 10173 u32 crc; 10174 bool nm_log = false; 10175 int rc = 1; 10176 10177 cgn_evt = be16_to_cpu(cgn->event_type); 10178 cgn_evt_str = lpfc_get_fpin_congn_event_nm(cgn_evt); 10179 cgn_sev = cgn->severity; 10180 cgn_sev_str = lpfc_get_fpin_congn_severity_nm(cgn_sev); 10181 10182 /* The driver only takes action on a Credit Stall or Oversubscription 10183 * event type to engage the IO algorithm. The driver prints an 10184 * unmaskable message only for Lost Credit and Credit Stall. 10185 * TODO: Still need to have definition of host action on clear, 10186 * lost credit and device specific event types. 10187 */ 10188 switch (cgn_evt) { 10189 case FPIN_CONGN_LOST_CREDIT: 10190 nm_log = true; 10191 break; 10192 case FPIN_CONGN_CREDIT_STALL: 10193 nm_log = true; 10194 fallthrough; 10195 case FPIN_CONGN_OVERSUBSCRIPTION: 10196 if (cgn_evt == FPIN_CONGN_OVERSUBSCRIPTION) 10197 nm_log = false; 10198 switch (cgn_sev) { 10199 case FPIN_CONGN_SEVERITY_ERROR: 10200 /* Take action here for an Alarm event */ 10201 if (phba->cmf_active_mode != LPFC_CFG_OFF) { 10202 if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) { 10203 /* Track of alarm cnt for SYNC_WQE */ 10204 atomic_inc(&phba->cgn_sync_alarm_cnt); 10205 } 10206 /* Track alarm cnt for cgn_info regardless 10207 * of whether CMF is configured for Signals 10208 * or FPINs. 10209 */ 10210 atomic_inc(&phba->cgn_fabric_alarm_cnt); 10211 goto cleanup; 10212 } 10213 break; 10214 case FPIN_CONGN_SEVERITY_WARNING: 10215 /* Take action here for a Warning event */ 10216 if (phba->cmf_active_mode != LPFC_CFG_OFF) { 10217 if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) { 10218 /* Track of warning cnt for SYNC_WQE */ 10219 atomic_inc(&phba->cgn_sync_warn_cnt); 10220 } 10221 /* Track warning cnt and freq for cgn_info 10222 * regardless of whether CMF is configured for 10223 * Signals or FPINs. 10224 */ 10225 atomic_inc(&phba->cgn_fabric_warn_cnt); 10226cleanup: 10227 /* Save frequency in ms */ 10228 phba->cgn_fpin_frequency = 10229 be32_to_cpu(cgn->event_period); 10230 value = phba->cgn_fpin_frequency; 10231 if (phba->cgn_i) { 10232 cp = (struct lpfc_cgn_info *) 10233 phba->cgn_i->virt; 10234 cp->cgn_alarm_freq = 10235 cpu_to_le16(value); 10236 cp->cgn_warn_freq = 10237 cpu_to_le16(value); 10238 crc = lpfc_cgn_calc_crc32 10239 (cp, 10240 LPFC_CGN_INFO_SZ, 10241 LPFC_CGN_CRC32_SEED); 10242 cp->cgn_info_crc = cpu_to_le32(crc); 10243 } 10244 10245 /* Don't deliver to upper layer since 10246 * driver took action on this tlv. 10247 */ 10248 rc = 0; 10249 } 10250 break; 10251 } 10252 break; 10253 } 10254 10255 /* Change the log level to unmaskable for the following event types. */ 10256 lpfc_printf_log(phba, (nm_log ? KERN_WARNING : KERN_INFO), 10257 LOG_CGN_MGMT | LOG_ELS, 10258 "4683 FPIN CONGESTION %s type %s (x%x) Event " 10259 "Duration %d mSecs\n", 10260 cgn_sev_str, cgn_evt_str, cgn_evt, 10261 be32_to_cpu(cgn->event_period)); 10262 return rc; 10263} 10264 10265void 10266lpfc_els_rcv_fpin(struct lpfc_vport *vport, void *p, u32 fpin_length) 10267{ 10268 struct lpfc_hba *phba = vport->phba; 10269 struct fc_els_fpin *fpin = (struct fc_els_fpin *)p; 10270 struct fc_tlv_desc *tlv, *first_tlv, *current_tlv; 10271 const char *dtag_nm; 10272 int desc_cnt = 0, bytes_remain, cnt; 10273 u32 dtag, deliver = 0; 10274 int len; 10275 10276 /* FPINs handled only if we are in the right discovery state */ 10277 if (vport->port_state < LPFC_DISC_AUTH) 10278 return; 10279 10280 /* make sure there is the full fpin header */ 10281 if (fpin_length < sizeof(struct fc_els_fpin)) 10282 return; 10283 10284 /* Sanity check descriptor length. The desc_len value does not 10285 * include space for the ELS command and the desc_len fields. 10286 */ 10287 len = be32_to_cpu(fpin->desc_len); 10288 if (fpin_length < len + sizeof(struct fc_els_fpin)) { 10289 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 10290 "4671 Bad ELS FPIN length %d: %d\n", 10291 len, fpin_length); 10292 return; 10293 } 10294 10295 tlv = (struct fc_tlv_desc *)&fpin->fpin_desc[0]; 10296 first_tlv = tlv; 10297 bytes_remain = fpin_length - offsetof(struct fc_els_fpin, fpin_desc); 10298 bytes_remain = min_t(u32, bytes_remain, be32_to_cpu(fpin->desc_len)); 10299 10300 /* process each descriptor separately */ 10301 while (bytes_remain >= FC_TLV_DESC_HDR_SZ && 10302 bytes_remain >= FC_TLV_DESC_SZ_FROM_LENGTH(tlv)) { 10303 dtag = be32_to_cpu(tlv->desc_tag); 10304 switch (dtag) { 10305 case ELS_DTAG_LNK_INTEGRITY: 10306 lpfc_els_rcv_fpin_li(phba, tlv); 10307 deliver = 1; 10308 break; 10309 case ELS_DTAG_DELIVERY: 10310 lpfc_els_rcv_fpin_del(phba, tlv); 10311 deliver = 1; 10312 break; 10313 case ELS_DTAG_PEER_CONGEST: 10314 lpfc_els_rcv_fpin_peer_cgn(phba, tlv); 10315 deliver = 1; 10316 break; 10317 case ELS_DTAG_CONGESTION: 10318 deliver = lpfc_els_rcv_fpin_cgn(phba, tlv); 10319 break; 10320 default: 10321 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 10322 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 10323 "4678 unknown FPIN descriptor[%d]: " 10324 "tag x%x (%s)\n", 10325 desc_cnt, dtag, dtag_nm); 10326 10327 /* If descriptor is bad, drop the rest of the data */ 10328 return; 10329 } 10330 lpfc_cgn_update_stat(phba, dtag); 10331 cnt = be32_to_cpu(tlv->desc_len); 10332 10333 /* Sanity check descriptor length. The desc_len value does not 10334 * include space for the desc_tag and the desc_len fields. 10335 */ 10336 len -= (cnt + sizeof(struct fc_tlv_desc)); 10337 if (len < 0) { 10338 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 10339 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 10340 "4672 Bad FPIN descriptor TLV length " 10341 "%d: %d %d %s\n", 10342 cnt, len, fpin_length, dtag_nm); 10343 return; 10344 } 10345 10346 current_tlv = tlv; 10347 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv); 10348 tlv = fc_tlv_next_desc(tlv); 10349 10350 /* Format payload such that the FPIN delivered to the 10351 * upper layer is a single descriptor FPIN. 10352 */ 10353 if (desc_cnt) 10354 memcpy(first_tlv, current_tlv, 10355 (cnt + sizeof(struct fc_els_fpin))); 10356 10357 /* Adjust the length so that it only reflects a 10358 * single descriptor FPIN. 10359 */ 10360 fpin_length = cnt + sizeof(struct fc_els_fpin); 10361 fpin->desc_len = cpu_to_be32(fpin_length); 10362 fpin_length += sizeof(struct fc_els_fpin); /* the entire FPIN */ 10363 10364 /* Send every descriptor individually to the upper layer */ 10365 if (deliver) 10366 fc_host_fpin_rcv(lpfc_shost_from_vport(vport), 10367 fpin_length, (char *)fpin, 0); 10368 desc_cnt++; 10369 } 10370} 10371 10372/** 10373 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer 10374 * @phba: pointer to lpfc hba data structure. 10375 * @pring: pointer to a SLI ring. 10376 * @vport: pointer to a host virtual N_Port data structure. 10377 * @elsiocb: pointer to lpfc els command iocb data structure. 10378 * 10379 * This routine is used for processing the IOCB associated with a unsolicited 10380 * event. It first determines whether there is an existing ndlp that matches 10381 * the DID from the unsolicited IOCB. If not, it will create a new one with 10382 * the DID from the unsolicited IOCB. The ELS command from the unsolicited 10383 * IOCB is then used to invoke the proper routine and to set up proper state 10384 * of the discovery state machine. 10385 **/ 10386static void 10387lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 10388 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) 10389{ 10390 struct lpfc_nodelist *ndlp; 10391 struct ls_rjt stat; 10392 u32 *payload, payload_len; 10393 u32 cmd = 0, did = 0, newnode, status = 0; 10394 uint8_t rjt_exp, rjt_err = 0, init_link = 0; 10395 struct lpfc_wcqe_complete *wcqe_cmpl = NULL; 10396 LPFC_MBOXQ_t *mbox; 10397 10398 if (!vport || !elsiocb->cmd_dmabuf) 10399 goto dropit; 10400 10401 newnode = 0; 10402 wcqe_cmpl = &elsiocb->wcqe_cmpl; 10403 payload = elsiocb->cmd_dmabuf->virt; 10404 if (phba->sli_rev == LPFC_SLI_REV4) 10405 payload_len = wcqe_cmpl->total_data_placed; 10406 else 10407 payload_len = elsiocb->iocb.unsli3.rcvsli3.acc_len; 10408 status = get_job_ulpstatus(phba, elsiocb); 10409 cmd = *payload; 10410 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) 10411 lpfc_sli3_post_buffer(phba, pring, 1); 10412 10413 did = get_job_els_rsp64_did(phba, elsiocb); 10414 if (status) { 10415 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10416 "RCV Unsol ELS: status:x%x/x%x did:x%x", 10417 status, get_job_word4(phba, elsiocb), did); 10418 goto dropit; 10419 } 10420 10421 /* Check to see if link went down during discovery */ 10422 if (lpfc_els_chk_latt(vport)) 10423 goto dropit; 10424 10425 /* Ignore traffic received during vport shutdown. */ 10426 if (test_bit(FC_UNLOADING, &vport->load_flag)) 10427 goto dropit; 10428 10429 /* If NPort discovery is delayed drop incoming ELS */ 10430 if (test_bit(FC_DISC_DELAYED, &vport->fc_flag) && 10431 cmd != ELS_CMD_PLOGI) 10432 goto dropit; 10433 10434 ndlp = lpfc_findnode_did(vport, did); 10435 if (!ndlp) { 10436 /* Cannot find existing Fabric ndlp, so allocate a new one */ 10437 ndlp = lpfc_nlp_init(vport, did); 10438 if (!ndlp) 10439 goto dropit; 10440 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 10441 newnode = 1; 10442 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) 10443 ndlp->nlp_type |= NLP_FABRIC; 10444 } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 10445 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 10446 newnode = 1; 10447 } 10448 10449 phba->fc_stat.elsRcvFrame++; 10450 10451 /* 10452 * Do not process any unsolicited ELS commands 10453 * if the ndlp is in DEV_LOSS 10454 */ 10455 if (test_bit(NLP_IN_DEV_LOSS, &ndlp->nlp_flag)) 10456 goto dropit; 10457 10458 elsiocb->ndlp = lpfc_nlp_get(ndlp); 10459 if (!elsiocb->ndlp) 10460 goto dropit; 10461 elsiocb->vport = vport; 10462 10463 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { 10464 cmd &= ELS_CMD_MASK; 10465 } 10466 /* ELS command <elsCmd> received from NPORT <did> */ 10467 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 10468 "0112 ELS command x%x received from NPORT x%x " 10469 "refcnt %d Data: x%x x%lx x%x x%x\n", 10470 cmd, did, kref_read(&ndlp->kref), vport->port_state, 10471 vport->fc_flag, vport->fc_myDID, vport->fc_prevDID); 10472 10473 /* reject till our FLOGI completes or PLOGI assigned DID via PT2PT */ 10474 if ((vport->port_state < LPFC_FABRIC_CFG_LINK) && 10475 (cmd != ELS_CMD_FLOGI) && 10476 !((cmd == ELS_CMD_PLOGI) && test_bit(FC_PT2PT, &vport->fc_flag))) { 10477 rjt_err = LSRJT_LOGICAL_BSY; 10478 rjt_exp = LSEXP_NOTHING_MORE; 10479 goto lsrjt; 10480 } 10481 10482 switch (cmd) { 10483 case ELS_CMD_PLOGI: 10484 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10485 "RCV PLOGI: did:x%x/ste:x%x flg:x%lx", 10486 did, vport->port_state, ndlp->nlp_flag); 10487 10488 phba->fc_stat.elsRcvPLOGI++; 10489 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); 10490 if (phba->sli_rev == LPFC_SLI_REV4 && 10491 test_bit(FC_PT2PT, &phba->pport->fc_flag)) { 10492 vport->fc_prevDID = vport->fc_myDID; 10493 /* Our DID needs to be updated before registering 10494 * the vfi. This is done in lpfc_rcv_plogi but 10495 * that is called after the reg_vfi. 10496 */ 10497 vport->fc_myDID = 10498 bf_get(els_rsp64_sid, 10499 &elsiocb->wqe.xmit_els_rsp); 10500 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 10501 "3312 Remote port assigned DID x%x " 10502 "%x\n", vport->fc_myDID, 10503 vport->fc_prevDID); 10504 } 10505 10506 lpfc_send_els_event(vport, ndlp, payload); 10507 10508 /* If Nport discovery is delayed, reject PLOGIs */ 10509 if (test_bit(FC_DISC_DELAYED, &vport->fc_flag)) { 10510 rjt_err = LSRJT_UNABLE_TPC; 10511 rjt_exp = LSEXP_NOTHING_MORE; 10512 break; 10513 } 10514 10515 if (vport->port_state < LPFC_DISC_AUTH) { 10516 if (!test_bit(FC_PT2PT, &phba->pport->fc_flag) || 10517 test_bit(FC_PT2PT_PLOGI, &phba->pport->fc_flag)) { 10518 rjt_err = LSRJT_UNABLE_TPC; 10519 rjt_exp = LSEXP_NOTHING_MORE; 10520 break; 10521 } 10522 } 10523 10524 lpfc_disc_state_machine(vport, ndlp, elsiocb, 10525 NLP_EVT_RCV_PLOGI); 10526 10527 break; 10528 case ELS_CMD_FLOGI: 10529 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10530 "RCV FLOGI: did:x%x/ste:x%x flg:x%lx", 10531 did, vport->port_state, ndlp->nlp_flag); 10532 10533 phba->fc_stat.elsRcvFLOGI++; 10534 10535 /* If the driver believes fabric discovery is done and is ready, 10536 * bounce the link. There is some descrepancy. 10537 */ 10538 if (vport->port_state >= LPFC_LOCAL_CFG_LINK && 10539 test_bit(FC_PT2PT, &vport->fc_flag) && 10540 vport->rcv_flogi_cnt >= 1) { 10541 rjt_err = LSRJT_LOGICAL_BSY; 10542 rjt_exp = LSEXP_NOTHING_MORE; 10543 init_link++; 10544 goto lsrjt; 10545 } 10546 10547 lpfc_els_rcv_flogi(vport, elsiocb, ndlp); 10548 /* retain node if our response is deferred */ 10549 if (phba->defer_flogi_acc.flag) 10550 break; 10551 if (newnode) 10552 lpfc_disc_state_machine(vport, ndlp, NULL, 10553 NLP_EVT_DEVICE_RM); 10554 break; 10555 case ELS_CMD_LOGO: 10556 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10557 "RCV LOGO: did:x%x/ste:x%x flg:x%lx", 10558 did, vport->port_state, ndlp->nlp_flag); 10559 10560 phba->fc_stat.elsRcvLOGO++; 10561 lpfc_send_els_event(vport, ndlp, payload); 10562 if (vport->port_state < LPFC_DISC_AUTH) { 10563 rjt_err = LSRJT_UNABLE_TPC; 10564 rjt_exp = LSEXP_NOTHING_MORE; 10565 break; 10566 } 10567 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); 10568 if (newnode) 10569 lpfc_disc_state_machine(vport, ndlp, NULL, 10570 NLP_EVT_DEVICE_RM); 10571 break; 10572 case ELS_CMD_PRLO: 10573 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10574 "RCV PRLO: did:x%x/ste:x%x flg:x%lx", 10575 did, vport->port_state, ndlp->nlp_flag); 10576 10577 phba->fc_stat.elsRcvPRLO++; 10578 lpfc_send_els_event(vport, ndlp, payload); 10579 if (vport->port_state < LPFC_DISC_AUTH) { 10580 rjt_err = LSRJT_UNABLE_TPC; 10581 rjt_exp = LSEXP_NOTHING_MORE; 10582 break; 10583 } 10584 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); 10585 break; 10586 case ELS_CMD_LCB: 10587 phba->fc_stat.elsRcvLCB++; 10588 lpfc_els_rcv_lcb(vport, elsiocb, ndlp); 10589 break; 10590 case ELS_CMD_RDP: 10591 phba->fc_stat.elsRcvRDP++; 10592 lpfc_els_rcv_rdp(vport, elsiocb, ndlp); 10593 break; 10594 case ELS_CMD_RSCN: 10595 phba->fc_stat.elsRcvRSCN++; 10596 lpfc_els_rcv_rscn(vport, elsiocb, ndlp); 10597 if (newnode) 10598 lpfc_disc_state_machine(vport, ndlp, NULL, 10599 NLP_EVT_DEVICE_RM); 10600 break; 10601 case ELS_CMD_ADISC: 10602 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10603 "RCV ADISC: did:x%x/ste:x%x flg:x%lx", 10604 did, vport->port_state, ndlp->nlp_flag); 10605 10606 lpfc_send_els_event(vport, ndlp, payload); 10607 phba->fc_stat.elsRcvADISC++; 10608 if (vport->port_state < LPFC_DISC_AUTH) { 10609 rjt_err = LSRJT_UNABLE_TPC; 10610 rjt_exp = LSEXP_NOTHING_MORE; 10611 break; 10612 } 10613 lpfc_disc_state_machine(vport, ndlp, elsiocb, 10614 NLP_EVT_RCV_ADISC); 10615 break; 10616 case ELS_CMD_PDISC: 10617 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10618 "RCV PDISC: did:x%x/ste:x%x flg:x%lx", 10619 did, vport->port_state, ndlp->nlp_flag); 10620 10621 phba->fc_stat.elsRcvPDISC++; 10622 if (vport->port_state < LPFC_DISC_AUTH) { 10623 rjt_err = LSRJT_UNABLE_TPC; 10624 rjt_exp = LSEXP_NOTHING_MORE; 10625 break; 10626 } 10627 lpfc_disc_state_machine(vport, ndlp, elsiocb, 10628 NLP_EVT_RCV_PDISC); 10629 break; 10630 case ELS_CMD_FARPR: 10631 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10632 "RCV FARPR: did:x%x/ste:x%x flg:x%lx", 10633 did, vport->port_state, ndlp->nlp_flag); 10634 10635 phba->fc_stat.elsRcvFARPR++; 10636 lpfc_els_rcv_farpr(vport, elsiocb, ndlp); 10637 break; 10638 case ELS_CMD_FARP: 10639 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10640 "RCV FARP: did:x%x/ste:x%x flg:x%lx", 10641 did, vport->port_state, ndlp->nlp_flag); 10642 10643 phba->fc_stat.elsRcvFARP++; 10644 lpfc_els_rcv_farp(vport, elsiocb, ndlp); 10645 break; 10646 case ELS_CMD_FAN: 10647 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10648 "RCV FAN: did:x%x/ste:x%x flg:x%lx", 10649 did, vport->port_state, ndlp->nlp_flag); 10650 10651 phba->fc_stat.elsRcvFAN++; 10652 lpfc_els_rcv_fan(vport, elsiocb, ndlp); 10653 break; 10654 case ELS_CMD_PRLI: 10655 case ELS_CMD_NVMEPRLI: 10656 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10657 "RCV PRLI: did:x%x/ste:x%x flg:x%lx", 10658 did, vport->port_state, ndlp->nlp_flag); 10659 10660 phba->fc_stat.elsRcvPRLI++; 10661 if ((vport->port_state < LPFC_DISC_AUTH) && 10662 test_bit(FC_FABRIC, &vport->fc_flag)) { 10663 rjt_err = LSRJT_UNABLE_TPC; 10664 rjt_exp = LSEXP_NOTHING_MORE; 10665 break; 10666 } 10667 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); 10668 break; 10669 case ELS_CMD_LIRR: 10670 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10671 "RCV LIRR: did:x%x/ste:x%x flg:x%lx", 10672 did, vport->port_state, ndlp->nlp_flag); 10673 10674 phba->fc_stat.elsRcvLIRR++; 10675 lpfc_els_rcv_lirr(vport, elsiocb, ndlp); 10676 if (newnode) 10677 lpfc_disc_state_machine(vport, ndlp, NULL, 10678 NLP_EVT_DEVICE_RM); 10679 break; 10680 case ELS_CMD_RLS: 10681 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10682 "RCV RLS: did:x%x/ste:x%x flg:x%lx", 10683 did, vport->port_state, ndlp->nlp_flag); 10684 10685 phba->fc_stat.elsRcvRLS++; 10686 lpfc_els_rcv_rls(vport, elsiocb, ndlp); 10687 if (newnode) 10688 lpfc_disc_state_machine(vport, ndlp, NULL, 10689 NLP_EVT_DEVICE_RM); 10690 break; 10691 case ELS_CMD_RPL: 10692 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10693 "RCV RPL: did:x%x/ste:x%x flg:x%lx", 10694 did, vport->port_state, ndlp->nlp_flag); 10695 10696 phba->fc_stat.elsRcvRPL++; 10697 lpfc_els_rcv_rpl(vport, elsiocb, ndlp); 10698 if (newnode) 10699 lpfc_disc_state_machine(vport, ndlp, NULL, 10700 NLP_EVT_DEVICE_RM); 10701 break; 10702 case ELS_CMD_RNID: 10703 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10704 "RCV RNID: did:x%x/ste:x%x flg:x%lx", 10705 did, vport->port_state, ndlp->nlp_flag); 10706 10707 phba->fc_stat.elsRcvRNID++; 10708 lpfc_els_rcv_rnid(vport, elsiocb, ndlp); 10709 if (newnode) 10710 lpfc_disc_state_machine(vport, ndlp, NULL, 10711 NLP_EVT_DEVICE_RM); 10712 break; 10713 case ELS_CMD_RTV: 10714 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10715 "RCV RTV: did:x%x/ste:x%x flg:x%lx", 10716 did, vport->port_state, ndlp->nlp_flag); 10717 phba->fc_stat.elsRcvRTV++; 10718 lpfc_els_rcv_rtv(vport, elsiocb, ndlp); 10719 if (newnode) 10720 lpfc_disc_state_machine(vport, ndlp, NULL, 10721 NLP_EVT_DEVICE_RM); 10722 break; 10723 case ELS_CMD_RRQ: 10724 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10725 "RCV RRQ: did:x%x/ste:x%x flg:x%lx", 10726 did, vport->port_state, ndlp->nlp_flag); 10727 10728 phba->fc_stat.elsRcvRRQ++; 10729 lpfc_els_rcv_rrq(vport, elsiocb, ndlp); 10730 if (newnode) 10731 lpfc_disc_state_machine(vport, ndlp, NULL, 10732 NLP_EVT_DEVICE_RM); 10733 break; 10734 case ELS_CMD_ECHO: 10735 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10736 "RCV ECHO: did:x%x/ste:x%x flg:x%lx", 10737 did, vport->port_state, ndlp->nlp_flag); 10738 10739 phba->fc_stat.elsRcvECHO++; 10740 lpfc_els_rcv_echo(vport, elsiocb, ndlp); 10741 if (newnode) 10742 lpfc_disc_state_machine(vport, ndlp, NULL, 10743 NLP_EVT_DEVICE_RM); 10744 break; 10745 case ELS_CMD_REC: 10746 /* receive this due to exchange closed */ 10747 rjt_err = LSRJT_UNABLE_TPC; 10748 rjt_exp = LSEXP_INVALID_OX_RX; 10749 break; 10750 case ELS_CMD_FPIN: 10751 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10752 "RCV FPIN: did:x%x/ste:x%x " 10753 "flg:x%lx", 10754 did, vport->port_state, ndlp->nlp_flag); 10755 10756 lpfc_els_rcv_fpin(vport, (struct fc_els_fpin *)payload, 10757 payload_len); 10758 10759 /* There are no replies, so no rjt codes */ 10760 break; 10761 case ELS_CMD_EDC: 10762 lpfc_els_rcv_edc(vport, elsiocb, ndlp); 10763 break; 10764 case ELS_CMD_RDF: 10765 phba->fc_stat.elsRcvRDF++; 10766 /* Accept RDF only from fabric controller */ 10767 if (did != Fabric_Cntl_DID) { 10768 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS, 10769 "1115 Received RDF from invalid DID " 10770 "x%x\n", did); 10771 rjt_err = LSRJT_PROTOCOL_ERR; 10772 rjt_exp = LSEXP_NOTHING_MORE; 10773 goto lsrjt; 10774 } 10775 10776 lpfc_els_rcv_rdf(vport, elsiocb, ndlp); 10777 break; 10778 default: 10779 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10780 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", 10781 cmd, did, vport->port_state); 10782 10783 /* Unsupported ELS command, reject */ 10784 rjt_err = LSRJT_CMD_UNSUPPORTED; 10785 rjt_exp = LSEXP_NOTHING_MORE; 10786 10787 /* Unknown ELS command <elsCmd> received from NPORT <did> */ 10788 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 10789 "0115 Unknown ELS command x%x " 10790 "received from NPORT x%x\n", cmd, did); 10791 if (newnode) 10792 lpfc_disc_state_machine(vport, ndlp, NULL, 10793 NLP_EVT_DEVICE_RM); 10794 break; 10795 } 10796 10797lsrjt: 10798 /* check if need to LS_RJT received ELS cmd */ 10799 if (rjt_err) { 10800 memset(&stat, 0, sizeof(stat)); 10801 stat.un.b.lsRjtRsnCode = rjt_err; 10802 stat.un.b.lsRjtRsnCodeExp = rjt_exp; 10803 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, 10804 NULL); 10805 /* Remove the reference from above for new nodes. */ 10806 if (newnode) 10807 lpfc_disc_state_machine(vport, ndlp, NULL, 10808 NLP_EVT_DEVICE_RM); 10809 } 10810 10811 /* Release the reference on this elsiocb, not the ndlp. */ 10812 lpfc_nlp_put(elsiocb->ndlp); 10813 elsiocb->ndlp = NULL; 10814 10815 /* Special case. Driver received an unsolicited command that 10816 * unsupportable given the driver's current state. Reset the 10817 * link and start over. 10818 */ 10819 if (init_link) { 10820 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 10821 if (!mbox) 10822 return; 10823 lpfc_linkdown(phba); 10824 lpfc_init_link(phba, mbox, 10825 phba->cfg_topology, 10826 phba->cfg_link_speed); 10827 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 10828 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 10829 mbox->vport = vport; 10830 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == 10831 MBX_NOT_FINISHED) 10832 mempool_free(mbox, phba->mbox_mem_pool); 10833 } 10834 10835 return; 10836 10837dropit: 10838 if (vport && !test_bit(FC_UNLOADING, &vport->load_flag)) 10839 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10840 "0111 Dropping received ELS cmd " 10841 "Data: x%x x%x x%x x%x\n", 10842 cmd, status, get_job_word4(phba, elsiocb), did); 10843 10844 phba->fc_stat.elsRcvDrop++; 10845} 10846 10847/** 10848 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring 10849 * @phba: pointer to lpfc hba data structure. 10850 * @pring: pointer to a SLI ring. 10851 * @elsiocb: pointer to lpfc els iocb data structure. 10852 * 10853 * This routine is used to process an unsolicited event received from a SLI 10854 * (Service Level Interface) ring. The actual processing of the data buffer 10855 * associated with the unsolicited event is done by invoking the routine 10856 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the 10857 * SLI ring on which the unsolicited event was received. 10858 **/ 10859void 10860lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 10861 struct lpfc_iocbq *elsiocb) 10862{ 10863 struct lpfc_vport *vport = elsiocb->vport; 10864 u32 ulp_command, status, parameter, bde_count = 0; 10865 IOCB_t *icmd; 10866 struct lpfc_wcqe_complete *wcqe_cmpl = NULL; 10867 struct lpfc_dmabuf *bdeBuf1 = elsiocb->cmd_dmabuf; 10868 struct lpfc_dmabuf *bdeBuf2 = elsiocb->bpl_dmabuf; 10869 dma_addr_t paddr; 10870 10871 elsiocb->cmd_dmabuf = NULL; 10872 elsiocb->rsp_dmabuf = NULL; 10873 elsiocb->bpl_dmabuf = NULL; 10874 10875 wcqe_cmpl = &elsiocb->wcqe_cmpl; 10876 ulp_command = get_job_cmnd(phba, elsiocb); 10877 status = get_job_ulpstatus(phba, elsiocb); 10878 parameter = get_job_word4(phba, elsiocb); 10879 if (phba->sli_rev == LPFC_SLI_REV4) 10880 bde_count = wcqe_cmpl->word3; 10881 else 10882 bde_count = elsiocb->iocb.ulpBdeCount; 10883 10884 if (status == IOSTAT_NEED_BUFFER) { 10885 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 10886 } else if (status == IOSTAT_LOCAL_REJECT && 10887 (parameter & IOERR_PARAM_MASK) == 10888 IOERR_RCV_BUFFER_WAITING) { 10889 phba->fc_stat.NoRcvBuf++; 10890 /* Not enough posted buffers; Try posting more buffers */ 10891 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) 10892 lpfc_sli3_post_buffer(phba, pring, 0); 10893 return; 10894 } 10895 10896 if (phba->sli_rev == LPFC_SLI_REV3) { 10897 icmd = &elsiocb->iocb; 10898 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 10899 (ulp_command == CMD_IOCB_RCV_ELS64_CX || 10900 ulp_command == CMD_IOCB_RCV_SEQ64_CX)) { 10901 if (icmd->unsli3.rcvsli3.vpi == 0xffff) 10902 vport = phba->pport; 10903 else 10904 vport = lpfc_find_vport_by_vpid(phba, 10905 icmd->unsli3.rcvsli3.vpi); 10906 } 10907 } 10908 10909 /* If there are no BDEs associated 10910 * with this IOCB, there is nothing to do. 10911 */ 10912 if (bde_count == 0) 10913 return; 10914 10915 /* Account for SLI2 or SLI3 and later unsolicited buffering */ 10916 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { 10917 elsiocb->cmd_dmabuf = bdeBuf1; 10918 if (bde_count == 2) 10919 elsiocb->bpl_dmabuf = bdeBuf2; 10920 } else { 10921 icmd = &elsiocb->iocb; 10922 paddr = getPaddr(icmd->un.cont64[0].addrHigh, 10923 icmd->un.cont64[0].addrLow); 10924 elsiocb->cmd_dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, 10925 paddr); 10926 if (bde_count == 2) { 10927 paddr = getPaddr(icmd->un.cont64[1].addrHigh, 10928 icmd->un.cont64[1].addrLow); 10929 elsiocb->bpl_dmabuf = lpfc_sli_ringpostbuf_get(phba, 10930 pring, 10931 paddr); 10932 } 10933 } 10934 10935 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); 10936 /* 10937 * The different unsolicited event handlers would tell us 10938 * if they are done with "mp" by setting cmd_dmabuf/bpl_dmabuf to NULL. 10939 */ 10940 if (elsiocb->cmd_dmabuf) { 10941 lpfc_in_buf_free(phba, elsiocb->cmd_dmabuf); 10942 elsiocb->cmd_dmabuf = NULL; 10943 } 10944 10945 if (elsiocb->bpl_dmabuf) { 10946 lpfc_in_buf_free(phba, elsiocb->bpl_dmabuf); 10947 elsiocb->bpl_dmabuf = NULL; 10948 } 10949 10950} 10951 10952static void 10953lpfc_start_fdmi(struct lpfc_vport *vport) 10954{ 10955 struct lpfc_nodelist *ndlp; 10956 10957 /* If this is the first time, allocate an ndlp and initialize 10958 * it. Otherwise, make sure the node is enabled and then do the 10959 * login. 10960 */ 10961 ndlp = lpfc_findnode_did(vport, FDMI_DID); 10962 if (!ndlp) { 10963 ndlp = lpfc_nlp_init(vport, FDMI_DID); 10964 if (ndlp) { 10965 ndlp->nlp_type |= NLP_FABRIC; 10966 } else { 10967 return; 10968 } 10969 } 10970 10971 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 10972 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 10973} 10974 10975/** 10976 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr 10977 * @phba: pointer to lpfc hba data structure. 10978 * @vport: pointer to a virtual N_Port data structure. 10979 * 10980 * This routine issues a Port Login (PLOGI) to the Name Server with 10981 * State Change Request (SCR) for a @vport. This routine will create an 10982 * ndlp for the Name Server associated to the @vport if such node does 10983 * not already exist. The PLOGI to Name Server is issued by invoking the 10984 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface 10985 * (FDMI) is configured to the @vport, a FDMI node will be created and 10986 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine. 10987 **/ 10988void 10989lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) 10990{ 10991 struct lpfc_nodelist *ndlp; 10992 10993 /* 10994 * If lpfc_delay_discovery parameter is set and the clean address 10995 * bit is cleared and fc fabric parameters chenged, delay FC NPort 10996 * discovery. 10997 */ 10998 if (test_bit(FC_DISC_DELAYED, &vport->fc_flag)) { 10999 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11000 "3334 Delay fc port discovery for %d secs\n", 11001 phba->fc_ratov); 11002 mod_timer(&vport->delayed_disc_tmo, 11003 jiffies + secs_to_jiffies(phba->fc_ratov)); 11004 return; 11005 } 11006 11007 ndlp = lpfc_findnode_did(vport, NameServer_DID); 11008 if (!ndlp) { 11009 ndlp = lpfc_nlp_init(vport, NameServer_DID); 11010 if (!ndlp) { 11011 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 11012 lpfc_disc_start(vport); 11013 return; 11014 } 11015 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11016 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11017 "0251 NameServer login: no memory\n"); 11018 return; 11019 } 11020 } 11021 11022 ndlp->nlp_type |= NLP_FABRIC; 11023 11024 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 11025 11026 if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { 11027 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11028 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11029 "0252 Cannot issue NameServer login\n"); 11030 return; 11031 } 11032 11033 if ((phba->cfg_enable_SmartSAN || 11034 phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT) && 11035 test_bit(FC_ALLOW_FDMI, &vport->load_flag)) 11036 lpfc_start_fdmi(vport); 11037} 11038 11039/** 11040 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport 11041 * @phba: pointer to lpfc hba data structure. 11042 * @pmb: pointer to the driver internal queue element for mailbox command. 11043 * 11044 * This routine is the completion callback function to register new vport 11045 * mailbox command. If the new vport mailbox command completes successfully, 11046 * the fabric registration login shall be performed on physical port (the 11047 * new vport created is actually a physical port, with VPI 0) or the port 11048 * login to Name Server for State Change Request (SCR) will be performed 11049 * on virtual port (real virtual port, with VPI greater than 0). 11050 **/ 11051static void 11052lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 11053{ 11054 struct lpfc_vport *vport = pmb->vport; 11055 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 11056 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; 11057 MAILBOX_t *mb = &pmb->u.mb; 11058 int rc; 11059 11060 clear_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); 11061 11062 if (mb->mbxStatus) { 11063 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11064 "0915 Register VPI failed : Status: x%x" 11065 " upd bit: x%x \n", mb->mbxStatus, 11066 mb->un.varRegVpi.upd); 11067 if (phba->sli_rev == LPFC_SLI_REV4 && 11068 mb->un.varRegVpi.upd) 11069 goto mbox_err_exit ; 11070 11071 switch (mb->mbxStatus) { 11072 case 0x11: /* unsupported feature */ 11073 case 0x9603: /* max_vpi exceeded */ 11074 case 0x9602: /* Link event since CLEAR_LA */ 11075 /* giving up on vport registration */ 11076 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11077 clear_bit(FC_FABRIC, &vport->fc_flag); 11078 clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag); 11079 lpfc_can_disctmo(vport); 11080 break; 11081 /* If reg_vpi fail with invalid VPI status, re-init VPI */ 11082 case 0x20: 11083 set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); 11084 lpfc_init_vpi(phba, pmb, vport->vpi); 11085 pmb->vport = vport; 11086 pmb->mbox_cmpl = lpfc_init_vpi_cmpl; 11087 rc = lpfc_sli_issue_mbox(phba, pmb, 11088 MBX_NOWAIT); 11089 if (rc == MBX_NOT_FINISHED) { 11090 lpfc_printf_vlog(vport, KERN_ERR, 11091 LOG_TRACE_EVENT, 11092 "2732 Failed to issue INIT_VPI" 11093 " mailbox command\n"); 11094 } else { 11095 lpfc_nlp_put(ndlp); 11096 return; 11097 } 11098 fallthrough; 11099 default: 11100 /* Try to recover from this error */ 11101 if (phba->sli_rev == LPFC_SLI_REV4) 11102 lpfc_sli4_unreg_all_rpis(vport); 11103 lpfc_mbx_unreg_vpi(vport); 11104 set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); 11105 if (mb->mbxStatus == MBX_NOT_FINISHED) 11106 break; 11107 if ((vport->port_type == LPFC_PHYSICAL_PORT) && 11108 !test_bit(FC_LOGO_RCVD_DID_CHNG, &vport->fc_flag)) { 11109 if (phba->sli_rev == LPFC_SLI_REV4) 11110 lpfc_issue_init_vfi(vport); 11111 else 11112 lpfc_initial_flogi(vport); 11113 } else { 11114 lpfc_initial_fdisc(vport); 11115 } 11116 break; 11117 } 11118 } else { 11119 spin_lock_irq(shost->host_lock); 11120 vport->vpi_state |= LPFC_VPI_REGISTERED; 11121 spin_unlock_irq(shost->host_lock); 11122 if (vport == phba->pport) { 11123 if (phba->sli_rev < LPFC_SLI_REV4) 11124 lpfc_issue_fabric_reglogin(vport); 11125 else { 11126 /* 11127 * If the physical port is instantiated using 11128 * FDISC, do not start vport discovery. 11129 */ 11130 if (vport->port_state != LPFC_FDISC) 11131 lpfc_start_fdiscs(phba); 11132 lpfc_do_scr_ns_plogi(phba, vport); 11133 } 11134 } else { 11135 lpfc_do_scr_ns_plogi(phba, vport); 11136 } 11137 } 11138mbox_err_exit: 11139 /* Now, we decrement the ndlp reference count held for this 11140 * callback function 11141 */ 11142 lpfc_nlp_put(ndlp); 11143 11144 mempool_free(pmb, phba->mbox_mem_pool); 11145 11146 /* reinitialize the VMID datastructure before returning. 11147 * this is specifically for vport 11148 */ 11149 if (lpfc_is_vmid_enabled(phba)) 11150 lpfc_reinit_vmid(vport); 11151 vport->vmid_flag = vport->phba->pport->vmid_flag; 11152 11153 return; 11154} 11155 11156/** 11157 * lpfc_register_new_vport - Register a new vport with a HBA 11158 * @phba: pointer to lpfc hba data structure. 11159 * @vport: pointer to a host virtual N_Port data structure. 11160 * @ndlp: pointer to a node-list data structure. 11161 * 11162 * This routine registers the @vport as a new virtual port with a HBA. 11163 * It is done through a registering vpi mailbox command. 11164 **/ 11165void 11166lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, 11167 struct lpfc_nodelist *ndlp) 11168{ 11169 LPFC_MBOXQ_t *mbox; 11170 11171 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 11172 if (mbox) { 11173 lpfc_reg_vpi(vport, mbox); 11174 mbox->vport = vport; 11175 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 11176 if (!mbox->ctx_ndlp) { 11177 mempool_free(mbox, phba->mbox_mem_pool); 11178 goto mbox_err_exit; 11179 } 11180 11181 mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; 11182 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 11183 == MBX_NOT_FINISHED) { 11184 /* mailbox command not success, decrement ndlp 11185 * reference count for this command 11186 */ 11187 lpfc_nlp_put(ndlp); 11188 mempool_free(mbox, phba->mbox_mem_pool); 11189 11190 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11191 "0253 Register VPI: Can't send mbox\n"); 11192 goto mbox_err_exit; 11193 } 11194 } else { 11195 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11196 "0254 Register VPI: no memory\n"); 11197 goto mbox_err_exit; 11198 } 11199 return; 11200 11201mbox_err_exit: 11202 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11203 clear_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); 11204 return; 11205} 11206 11207/** 11208 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer 11209 * @phba: pointer to lpfc hba data structure. 11210 * 11211 * This routine cancels the retry delay timers to all the vports. 11212 **/ 11213void 11214lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba) 11215{ 11216 struct lpfc_vport **vports; 11217 struct lpfc_nodelist *ndlp; 11218 uint32_t link_state; 11219 int i; 11220 11221 /* Treat this failure as linkdown for all vports */ 11222 link_state = phba->link_state; 11223 lpfc_linkdown(phba); 11224 phba->link_state = link_state; 11225 11226 vports = lpfc_create_vport_work_array(phba); 11227 11228 if (vports) { 11229 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 11230 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 11231 if (ndlp) 11232 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 11233 lpfc_els_flush_cmd(vports[i]); 11234 } 11235 lpfc_destroy_vport_work_array(phba, vports); 11236 } 11237} 11238 11239/** 11240 * lpfc_retry_pport_discovery - Start timer to retry FLOGI. 11241 * @phba: pointer to lpfc hba data structure. 11242 * 11243 * This routine abort all pending discovery commands and 11244 * start a timer to retry FLOGI for the physical port 11245 * discovery. 11246 **/ 11247void 11248lpfc_retry_pport_discovery(struct lpfc_hba *phba) 11249{ 11250 struct lpfc_nodelist *ndlp; 11251 11252 /* Cancel the all vports retry delay retry timers */ 11253 lpfc_cancel_all_vport_retry_delay_timer(phba); 11254 11255 /* If fabric require FLOGI, then re-instantiate physical login */ 11256 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 11257 if (!ndlp) 11258 return; 11259 11260 mod_timer(&ndlp->nlp_delayfunc, jiffies + secs_to_jiffies(1)); 11261 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 11262 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI; 11263 phba->pport->port_state = LPFC_FLOGI; 11264 return; 11265} 11266 11267/** 11268 * lpfc_fabric_login_reqd - Check if FLOGI required. 11269 * @phba: pointer to lpfc hba data structure. 11270 * @cmdiocb: pointer to FDISC command iocb. 11271 * @rspiocb: pointer to FDISC response iocb. 11272 * 11273 * This routine checks if a FLOGI is reguired for FDISC 11274 * to succeed. 11275 **/ 11276static int 11277lpfc_fabric_login_reqd(struct lpfc_hba *phba, 11278 struct lpfc_iocbq *cmdiocb, 11279 struct lpfc_iocbq *rspiocb) 11280{ 11281 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 11282 u32 ulp_word4 = get_job_word4(phba, rspiocb); 11283 11284 if (ulp_status != IOSTAT_FABRIC_RJT || 11285 ulp_word4 != RJT_LOGIN_REQUIRED) 11286 return 0; 11287 else 11288 return 1; 11289} 11290 11291/** 11292 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command 11293 * @phba: pointer to lpfc hba data structure. 11294 * @cmdiocb: pointer to lpfc command iocb data structure. 11295 * @rspiocb: pointer to lpfc response iocb data structure. 11296 * 11297 * This routine is the completion callback function to a Fabric Discover 11298 * (FDISC) ELS command. Since all the FDISC ELS commands are issued 11299 * single threaded, each FDISC completion callback function will reset 11300 * the discovery timer for all vports such that the timers will not get 11301 * unnecessary timeout. The function checks the FDISC IOCB status. If error 11302 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the 11303 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID 11304 * assigned to the vport has been changed with the completion of the FDISC 11305 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index) 11306 * are unregistered from the HBA, and then the lpfc_register_new_vport() 11307 * routine is invoked to register new vport with the HBA. Otherwise, the 11308 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name 11309 * Server for State Change Request (SCR). 11310 **/ 11311static void 11312lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 11313 struct lpfc_iocbq *rspiocb) 11314{ 11315 struct lpfc_vport *vport = cmdiocb->vport; 11316 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 11317 struct lpfc_nodelist *np; 11318 struct lpfc_nodelist *next_np; 11319 struct lpfc_iocbq *piocb; 11320 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf, *prsp; 11321 struct serv_parm *sp; 11322 uint8_t fabric_param_changed; 11323 u32 ulp_status, ulp_word4; 11324 11325 ulp_status = get_job_ulpstatus(phba, rspiocb); 11326 ulp_word4 = get_job_word4(phba, rspiocb); 11327 11328 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 11329 "0123 FDISC completes. x%x/x%x prevDID: x%x\n", 11330 ulp_status, ulp_word4, 11331 vport->fc_prevDID); 11332 /* Since all FDISCs are being single threaded, we 11333 * must reset the discovery timer for ALL vports 11334 * waiting to send FDISC when one completes. 11335 */ 11336 list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { 11337 lpfc_set_disctmo(piocb->vport); 11338 } 11339 11340 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11341 "FDISC cmpl: status:x%x/x%x prevdid:x%x", 11342 ulp_status, ulp_word4, vport->fc_prevDID); 11343 11344 if (ulp_status) { 11345 11346 if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) { 11347 lpfc_retry_pport_discovery(phba); 11348 goto out; 11349 } 11350 11351 /* Check for retry */ 11352 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) 11353 goto out; 11354 /* Warn FDISC status */ 11355 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 11356 "0126 FDISC cmpl status: x%x/x%x)\n", 11357 ulp_status, ulp_word4); 11358 11359 /* drop initial reference */ 11360 if (!test_and_set_bit(NLP_DROPPED, &ndlp->nlp_flag)) 11361 lpfc_nlp_put(ndlp); 11362 11363 goto fdisc_failed; 11364 } 11365 11366 lpfc_check_nlp_post_devloss(vport, ndlp); 11367 11368 clear_bit(FC_VPORT_CVL_RCVD, &vport->fc_flag); 11369 clear_bit(FC_VPORT_LOGO_RCVD, &vport->fc_flag); 11370 set_bit(FC_FABRIC, &vport->fc_flag); 11371 if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP) 11372 set_bit(FC_PUBLIC_LOOP, &vport->fc_flag); 11373 11374 vport->fc_myDID = ulp_word4 & Mask_DID; 11375 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); 11376 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 11377 if (!prsp) 11378 goto out; 11379 if (!lpfc_is_els_acc_rsp(prsp)) 11380 goto out; 11381 11382 sp = prsp->virt + sizeof(uint32_t); 11383 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); 11384 memcpy(&vport->fabric_portname, &sp->portName, 11385 sizeof(struct lpfc_name)); 11386 memcpy(&vport->fabric_nodename, &sp->nodeName, 11387 sizeof(struct lpfc_name)); 11388 if (fabric_param_changed && 11389 !test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) { 11390 /* If our NportID changed, we need to ensure all 11391 * remaining NPORTs get unreg_login'ed so we can 11392 * issue unreg_vpi. 11393 */ 11394 list_for_each_entry_safe(np, next_np, 11395 &vport->fc_nodes, nlp_listp) { 11396 if ((np->nlp_state != NLP_STE_NPR_NODE) || 11397 !test_bit(NLP_NPR_ADISC, &np->nlp_flag)) 11398 continue; 11399 clear_bit(NLP_NPR_ADISC, &np->nlp_flag); 11400 lpfc_unreg_rpi(vport, np); 11401 } 11402 lpfc_cleanup_pending_mbox(vport); 11403 11404 if (phba->sli_rev == LPFC_SLI_REV4) 11405 lpfc_sli4_unreg_all_rpis(vport); 11406 11407 lpfc_mbx_unreg_vpi(vport); 11408 set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); 11409 if (phba->sli_rev == LPFC_SLI_REV4) 11410 set_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag); 11411 else 11412 set_bit(FC_LOGO_RCVD_DID_CHNG, &vport->fc_flag); 11413 } else if ((phba->sli_rev == LPFC_SLI_REV4) && 11414 !test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) { 11415 /* 11416 * Driver needs to re-reg VPI in order for f/w 11417 * to update the MAC address. 11418 */ 11419 lpfc_register_new_vport(phba, vport, ndlp); 11420 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 11421 goto out; 11422 } 11423 11424 if (test_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag)) 11425 lpfc_issue_init_vpi(vport); 11426 else if (test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) 11427 lpfc_register_new_vport(phba, vport, ndlp); 11428 else 11429 lpfc_do_scr_ns_plogi(phba, vport); 11430 11431 /* The FDISC completed successfully. Move the fabric ndlp to 11432 * UNMAPPED state and register with the transport. 11433 */ 11434 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 11435 goto out; 11436 11437fdisc_failed: 11438 if (vport->fc_vport && 11439 (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS)) 11440 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11441 /* Cancel discovery timer */ 11442 lpfc_can_disctmo(vport); 11443out: 11444 lpfc_els_free_iocb(phba, cmdiocb); 11445 lpfc_nlp_put(ndlp); 11446} 11447 11448/** 11449 * lpfc_issue_els_fdisc - Issue a fdisc iocb command 11450 * @vport: pointer to a virtual N_Port data structure. 11451 * @ndlp: pointer to a node-list data structure. 11452 * @retry: number of retries to the command IOCB. 11453 * 11454 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to 11455 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb() 11456 * routine to issue the IOCB, which makes sure only one outstanding fabric 11457 * IOCB will be sent off HBA at any given time. 11458 * 11459 * Note that the ndlp reference count will be incremented by 1 for holding the 11460 * ndlp and the reference to ndlp will be stored into the ndlp field of 11461 * the IOCB for the completion callback function to the FDISC ELS command. 11462 * 11463 * Return code 11464 * 0 - Successfully issued fdisc iocb command 11465 * 1 - Failed to issue fdisc iocb command 11466 **/ 11467static int 11468lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 11469 uint8_t retry) 11470{ 11471 struct lpfc_hba *phba = vport->phba; 11472 IOCB_t *icmd; 11473 union lpfc_wqe128 *wqe = NULL; 11474 struct lpfc_iocbq *elsiocb; 11475 struct serv_parm *sp; 11476 uint8_t *pcmd; 11477 uint16_t cmdsize; 11478 int did = ndlp->nlp_DID; 11479 int rc; 11480 11481 vport->port_state = LPFC_FDISC; 11482 vport->fc_myDID = 0; 11483 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); 11484 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, 11485 ELS_CMD_FDISC); 11486 if (!elsiocb) { 11487 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11488 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11489 "0255 Issue FDISC: no IOCB\n"); 11490 return 1; 11491 } 11492 11493 if (phba->sli_rev == LPFC_SLI_REV4) { 11494 wqe = &elsiocb->wqe; 11495 bf_set(els_req64_sid, &wqe->els_req, 0); 11496 bf_set(els_req64_sp, &wqe->els_req, 1); 11497 } else { 11498 icmd = &elsiocb->iocb; 11499 icmd->un.elsreq64.myID = 0; 11500 icmd->un.elsreq64.fl = 1; 11501 icmd->ulpCt_h = 1; 11502 icmd->ulpCt_l = 0; 11503 } 11504 11505 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 11506 *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; 11507 pcmd += sizeof(uint32_t); /* CSP Word 1 */ 11508 memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); 11509 sp = (struct serv_parm *) pcmd; 11510 /* Setup CSPs accordingly for Fabric */ 11511 sp->cmn.e_d_tov = 0; 11512 sp->cmn.w2.r_a_tov = 0; 11513 sp->cmn.virtual_fabric_support = 0; 11514 sp->cls1.classValid = 0; 11515 sp->cls2.seqDelivery = 1; 11516 sp->cls3.seqDelivery = 1; 11517 11518 /* Fill out Auxiliary Parameter Data */ 11519 if (phba->pni) { 11520 sp->aux.flags = 11521 AUX_PARM_DATA_VALID | AUX_PARM_PNI_VALID; 11522 sp->aux.pni = cpu_to_be64(phba->pni); 11523 } 11524 11525 pcmd += sizeof(uint32_t); /* CSP Word 2 */ 11526 pcmd += sizeof(uint32_t); /* CSP Word 3 */ 11527 pcmd += sizeof(uint32_t); /* CSP Word 4 */ 11528 pcmd += sizeof(uint32_t); /* Port Name */ 11529 memcpy(pcmd, &vport->fc_portname, 8); 11530 pcmd += sizeof(uint32_t); /* Node Name */ 11531 pcmd += sizeof(uint32_t); /* Node Name */ 11532 memcpy(pcmd, &vport->fc_nodename, 8); 11533 sp->cmn.valid_vendor_ver_level = 0; 11534 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion)); 11535 lpfc_set_disctmo(vport); 11536 11537 phba->fc_stat.elsXmitFDISC++; 11538 elsiocb->cmd_cmpl = lpfc_cmpl_els_fdisc; 11539 11540 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11541 "Issue FDISC: did:x%x", 11542 did, 0, 0); 11543 11544 elsiocb->ndlp = lpfc_nlp_get(ndlp); 11545 if (!elsiocb->ndlp) 11546 goto err_out; 11547 11548 rc = lpfc_issue_fabric_iocb(phba, elsiocb); 11549 if (rc == IOCB_ERROR) { 11550 lpfc_nlp_put(ndlp); 11551 goto err_out; 11552 } 11553 11554 lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); 11555 return 0; 11556 11557 err_out: 11558 lpfc_els_free_iocb(phba, elsiocb); 11559 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11560 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11561 "0256 Issue FDISC: Cannot send IOCB\n"); 11562 return 1; 11563} 11564 11565/** 11566 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo 11567 * @phba: pointer to lpfc hba data structure. 11568 * @cmdiocb: pointer to lpfc command iocb data structure. 11569 * @rspiocb: pointer to lpfc response iocb data structure. 11570 * 11571 * This routine is the completion callback function to the issuing of a LOGO 11572 * ELS command off a vport. It frees the command IOCB and then decrement the 11573 * reference count held on ndlp for this completion function, indicating that 11574 * the reference to the ndlp is no long needed. Note that the 11575 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this 11576 * callback function and an additional explicit ndlp reference decrementation 11577 * will trigger the actual release of the ndlp. 11578 **/ 11579static void 11580lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 11581 struct lpfc_iocbq *rspiocb) 11582{ 11583 struct lpfc_vport *vport = cmdiocb->vport; 11584 IOCB_t *irsp; 11585 struct lpfc_nodelist *ndlp; 11586 u32 ulp_status, ulp_word4, did, tmo; 11587 11588 ndlp = cmdiocb->ndlp; 11589 11590 ulp_status = get_job_ulpstatus(phba, rspiocb); 11591 ulp_word4 = get_job_word4(phba, rspiocb); 11592 11593 if (phba->sli_rev == LPFC_SLI_REV4) { 11594 did = get_job_els_rsp64_did(phba, cmdiocb); 11595 tmo = get_wqe_tmo(cmdiocb); 11596 } else { 11597 irsp = &rspiocb->iocb; 11598 did = get_job_els_rsp64_did(phba, rspiocb); 11599 tmo = irsp->ulpTimeout; 11600 } 11601 11602 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11603 "LOGO npiv cmpl: status:x%x/x%x did:x%x", 11604 ulp_status, ulp_word4, did); 11605 11606 /* NPIV LOGO completes to NPort <nlp_DID> */ 11607 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 11608 "2928 NPIV LOGO completes to NPort x%x " 11609 "Data: x%x x%x x%x x%x x%x x%lx x%x\n", 11610 ndlp->nlp_DID, ulp_status, ulp_word4, 11611 tmo, vport->num_disc_nodes, 11612 kref_read(&ndlp->kref), ndlp->nlp_flag, 11613 ndlp->fc4_xpt_flags); 11614 11615 if (ulp_status == IOSTAT_SUCCESS) { 11616 clear_bit(FC_NDISC_ACTIVE, &vport->fc_flag); 11617 clear_bit(FC_FABRIC, &vport->fc_flag); 11618 lpfc_can_disctmo(vport); 11619 } 11620 11621 if (test_bit(NLP_WAIT_FOR_LOGO, &ndlp->save_flags)) { 11622 /* Wake up lpfc_vport_delete if waiting...*/ 11623 if (ndlp->logo_waitq) 11624 wake_up(ndlp->logo_waitq); 11625 clear_bit(NLP_ISSUE_LOGO, &ndlp->nlp_flag); 11626 clear_bit(NLP_LOGO_SND, &ndlp->nlp_flag); 11627 clear_bit(NLP_WAIT_FOR_LOGO, &ndlp->save_flags); 11628 } 11629 11630 /* Safe to release resources now. */ 11631 lpfc_els_free_iocb(phba, cmdiocb); 11632 lpfc_nlp_put(ndlp); 11633} 11634 11635/** 11636 * lpfc_issue_els_npiv_logo - Issue a logo off a vport 11637 * @vport: pointer to a virtual N_Port data structure. 11638 * @ndlp: pointer to a node-list data structure. 11639 * 11640 * This routine issues a LOGO ELS command to an @ndlp off a @vport. 11641 * 11642 * Note that the ndlp reference count will be incremented by 1 for holding the 11643 * ndlp and the reference to ndlp will be stored into the ndlp field of 11644 * the IOCB for the completion callback function to the LOGO ELS command. 11645 * 11646 * Return codes 11647 * 0 - Successfully issued logo off the @vport 11648 * 1 - Failed to issue logo off the @vport 11649 **/ 11650int 11651lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 11652{ 11653 int rc = 0; 11654 struct lpfc_hba *phba = vport->phba; 11655 struct lpfc_iocbq *elsiocb; 11656 uint8_t *pcmd; 11657 uint16_t cmdsize; 11658 11659 cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); 11660 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, 11661 ELS_CMD_LOGO); 11662 if (!elsiocb) 11663 return 1; 11664 11665 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 11666 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; 11667 pcmd += sizeof(uint32_t); 11668 11669 /* Fill in LOGO payload */ 11670 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); 11671 pcmd += sizeof(uint32_t); 11672 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); 11673 11674 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11675 "Issue LOGO npiv did:x%x flg:x%lx", 11676 ndlp->nlp_DID, ndlp->nlp_flag, 0); 11677 11678 elsiocb->cmd_cmpl = lpfc_cmpl_els_npiv_logo; 11679 set_bit(NLP_LOGO_SND, &ndlp->nlp_flag); 11680 elsiocb->ndlp = lpfc_nlp_get(ndlp); 11681 if (!elsiocb->ndlp) { 11682 lpfc_els_free_iocb(phba, elsiocb); 11683 goto err; 11684 } 11685 11686 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 11687 if (rc == IOCB_ERROR) { 11688 lpfc_els_free_iocb(phba, elsiocb); 11689 lpfc_nlp_put(ndlp); 11690 goto err; 11691 } 11692 return 0; 11693 11694err: 11695 clear_bit(NLP_LOGO_SND, &ndlp->nlp_flag); 11696 return 1; 11697} 11698 11699/** 11700 * lpfc_fabric_block_timeout - Handler function to the fabric block timer 11701 * @t: timer context used to obtain the lpfc hba. 11702 * 11703 * This routine is invoked by the fabric iocb block timer after 11704 * timeout. It posts the fabric iocb block timeout event by setting the 11705 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes 11706 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for 11707 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the 11708 * posted event WORKER_FABRIC_BLOCK_TMO. 11709 **/ 11710void 11711lpfc_fabric_block_timeout(struct timer_list *t) 11712{ 11713 struct lpfc_hba *phba = timer_container_of(phba, t, 11714 fabric_block_timer); 11715 unsigned long iflags; 11716 uint32_t tmo_posted; 11717 11718 spin_lock_irqsave(&phba->pport->work_port_lock, iflags); 11719 tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; 11720 if (!tmo_posted) 11721 phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; 11722 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); 11723 11724 if (!tmo_posted) 11725 lpfc_worker_wake_up(phba); 11726 return; 11727} 11728 11729/** 11730 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list 11731 * @phba: pointer to lpfc hba data structure. 11732 * 11733 * This routine issues one fabric iocb from the driver internal list to 11734 * the HBA. It first checks whether it's ready to issue one fabric iocb to 11735 * the HBA (whether there is no outstanding fabric iocb). If so, it shall 11736 * remove one pending fabric iocb from the driver internal list and invokes 11737 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA. 11738 **/ 11739static void 11740lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) 11741{ 11742 struct lpfc_iocbq *iocb; 11743 unsigned long iflags; 11744 int ret; 11745 11746repeat: 11747 iocb = NULL; 11748 spin_lock_irqsave(&phba->hbalock, iflags); 11749 /* Post any pending iocb to the SLI layer */ 11750 if (atomic_read(&phba->fabric_iocb_count) == 0) { 11751 list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), 11752 list); 11753 if (iocb) 11754 /* Increment fabric iocb count to hold the position */ 11755 atomic_inc(&phba->fabric_iocb_count); 11756 } 11757 spin_unlock_irqrestore(&phba->hbalock, iflags); 11758 if (iocb) { 11759 iocb->fabric_cmd_cmpl = iocb->cmd_cmpl; 11760 iocb->cmd_cmpl = lpfc_cmpl_fabric_iocb; 11761 iocb->cmd_flag |= LPFC_IO_FABRIC; 11762 11763 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, 11764 "Fabric sched1: ste:x%x", 11765 iocb->vport->port_state, 0, 0); 11766 11767 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); 11768 11769 if (ret == IOCB_ERROR) { 11770 iocb->cmd_cmpl = iocb->fabric_cmd_cmpl; 11771 iocb->fabric_cmd_cmpl = NULL; 11772 iocb->cmd_flag &= ~LPFC_IO_FABRIC; 11773 set_job_ulpstatus(iocb, IOSTAT_LOCAL_REJECT); 11774 iocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED; 11775 iocb->cmd_cmpl(phba, iocb, iocb); 11776 11777 atomic_dec(&phba->fabric_iocb_count); 11778 goto repeat; 11779 } 11780 } 11781} 11782 11783/** 11784 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command 11785 * @phba: pointer to lpfc hba data structure. 11786 * 11787 * This routine unblocks the issuing fabric iocb command. The function 11788 * will clear the fabric iocb block bit and then invoke the routine 11789 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb 11790 * from the driver internal fabric iocb list. 11791 **/ 11792void 11793lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) 11794{ 11795 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 11796 11797 lpfc_resume_fabric_iocbs(phba); 11798 return; 11799} 11800 11801/** 11802 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command 11803 * @phba: pointer to lpfc hba data structure. 11804 * 11805 * This routine blocks the issuing fabric iocb for a specified amount of 11806 * time (currently 100 ms). This is done by set the fabric iocb block bit 11807 * and set up a timeout timer for 100ms. When the block bit is set, no more 11808 * fabric iocb will be issued out of the HBA. 11809 **/ 11810static void 11811lpfc_block_fabric_iocbs(struct lpfc_hba *phba) 11812{ 11813 int blocked; 11814 11815 blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 11816 /* Start a timer to unblock fabric iocbs after 100ms */ 11817 if (!blocked) 11818 mod_timer(&phba->fabric_block_timer, 11819 jiffies + msecs_to_jiffies(100)); 11820 11821 return; 11822} 11823 11824/** 11825 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb 11826 * @phba: pointer to lpfc hba data structure. 11827 * @cmdiocb: pointer to lpfc command iocb data structure. 11828 * @rspiocb: pointer to lpfc response iocb data structure. 11829 * 11830 * This routine is the callback function that is put to the fabric iocb's 11831 * callback function pointer (iocb->cmd_cmpl). The original iocb's callback 11832 * function pointer has been stored in iocb->fabric_cmd_cmpl. This callback 11833 * function first restores and invokes the original iocb's callback function 11834 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next 11835 * fabric bound iocb from the driver internal fabric iocb list onto the wire. 11836 **/ 11837static void 11838lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 11839 struct lpfc_iocbq *rspiocb) 11840{ 11841 struct ls_rjt stat; 11842 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 11843 u32 ulp_word4 = get_job_word4(phba, rspiocb); 11844 11845 WARN_ON((cmdiocb->cmd_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC); 11846 11847 switch (ulp_status) { 11848 case IOSTAT_NPORT_RJT: 11849 case IOSTAT_FABRIC_RJT: 11850 if (ulp_word4 & RJT_UNAVAIL_TEMP) 11851 lpfc_block_fabric_iocbs(phba); 11852 break; 11853 11854 case IOSTAT_NPORT_BSY: 11855 case IOSTAT_FABRIC_BSY: 11856 lpfc_block_fabric_iocbs(phba); 11857 break; 11858 11859 case IOSTAT_LS_RJT: 11860 stat.un.ls_rjt_error_be = 11861 cpu_to_be32(ulp_word4); 11862 if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || 11863 (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) 11864 lpfc_block_fabric_iocbs(phba); 11865 break; 11866 } 11867 11868 BUG_ON(atomic_read(&phba->fabric_iocb_count) == 0); 11869 11870 cmdiocb->cmd_cmpl = cmdiocb->fabric_cmd_cmpl; 11871 cmdiocb->fabric_cmd_cmpl = NULL; 11872 cmdiocb->cmd_flag &= ~LPFC_IO_FABRIC; 11873 cmdiocb->cmd_cmpl(phba, cmdiocb, rspiocb); 11874 11875 atomic_dec(&phba->fabric_iocb_count); 11876 if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { 11877 /* Post any pending iocbs to HBA */ 11878 lpfc_resume_fabric_iocbs(phba); 11879 } 11880} 11881 11882/** 11883 * lpfc_issue_fabric_iocb - Issue a fabric iocb command 11884 * @phba: pointer to lpfc hba data structure. 11885 * @iocb: pointer to lpfc command iocb data structure. 11886 * 11887 * This routine is used as the top-level API for issuing a fabric iocb command 11888 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver 11889 * function makes sure that only one fabric bound iocb will be outstanding at 11890 * any given time. As such, this function will first check to see whether there 11891 * is already an outstanding fabric iocb on the wire. If so, it will put the 11892 * newly issued iocb onto the driver internal fabric iocb list, waiting to be 11893 * issued later. Otherwise, it will issue the iocb on the wire and update the 11894 * fabric iocb count it indicate that there is one fabric iocb on the wire. 11895 * 11896 * Note, this implementation has a potential sending out fabric IOCBs out of 11897 * order. The problem is caused by the construction of the "ready" boolen does 11898 * not include the condition that the internal fabric IOCB list is empty. As 11899 * such, it is possible a fabric IOCB issued by this routine might be "jump" 11900 * ahead of the fabric IOCBs in the internal list. 11901 * 11902 * Return code 11903 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully 11904 * IOCB_ERROR - failed to issue fabric iocb 11905 **/ 11906static int 11907lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) 11908{ 11909 unsigned long iflags; 11910 int ready; 11911 int ret; 11912 11913 BUG_ON(atomic_read(&phba->fabric_iocb_count) > 1); 11914 11915 spin_lock_irqsave(&phba->hbalock, iflags); 11916 ready = atomic_read(&phba->fabric_iocb_count) == 0 && 11917 !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 11918 11919 if (ready) 11920 /* Increment fabric iocb count to hold the position */ 11921 atomic_inc(&phba->fabric_iocb_count); 11922 spin_unlock_irqrestore(&phba->hbalock, iflags); 11923 if (ready) { 11924 iocb->fabric_cmd_cmpl = iocb->cmd_cmpl; 11925 iocb->cmd_cmpl = lpfc_cmpl_fabric_iocb; 11926 iocb->cmd_flag |= LPFC_IO_FABRIC; 11927 11928 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, 11929 "Fabric sched2: ste:x%x", 11930 iocb->vport->port_state, 0, 0); 11931 11932 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); 11933 11934 if (ret == IOCB_ERROR) { 11935 iocb->cmd_cmpl = iocb->fabric_cmd_cmpl; 11936 iocb->fabric_cmd_cmpl = NULL; 11937 iocb->cmd_flag &= ~LPFC_IO_FABRIC; 11938 atomic_dec(&phba->fabric_iocb_count); 11939 } 11940 } else { 11941 spin_lock_irqsave(&phba->hbalock, iflags); 11942 list_add_tail(&iocb->list, &phba->fabric_iocb_list); 11943 spin_unlock_irqrestore(&phba->hbalock, iflags); 11944 ret = IOCB_SUCCESS; 11945 } 11946 return ret; 11947} 11948 11949/** 11950 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list 11951 * @vport: pointer to a virtual N_Port data structure. 11952 * 11953 * This routine aborts all the IOCBs associated with a @vport from the 11954 * driver internal fabric IOCB list. The list contains fabric IOCBs to be 11955 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB 11956 * list, removes each IOCB associated with the @vport off the list, set the 11957 * status field to IOSTAT_LOCAL_REJECT, and invokes the callback function 11958 * associated with the IOCB. 11959 **/ 11960static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) 11961{ 11962 LIST_HEAD(completions); 11963 struct lpfc_hba *phba = vport->phba; 11964 struct lpfc_iocbq *tmp_iocb, *piocb; 11965 11966 spin_lock_irq(&phba->hbalock); 11967 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, 11968 list) { 11969 11970 if (piocb->vport != vport) 11971 continue; 11972 11973 list_move_tail(&piocb->list, &completions); 11974 } 11975 spin_unlock_irq(&phba->hbalock); 11976 11977 /* Cancel all the IOCBs from the completions list */ 11978 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 11979 IOERR_SLI_ABORTED); 11980} 11981 11982/** 11983 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list 11984 * @ndlp: pointer to a node-list data structure. 11985 * 11986 * This routine aborts all the IOCBs associated with an @ndlp from the 11987 * driver internal fabric IOCB list. The list contains fabric IOCBs to be 11988 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB 11989 * list, removes each IOCB associated with the @ndlp off the list, set the 11990 * status field to IOSTAT_LOCAL_REJECT, and invokes the callback function 11991 * associated with the IOCB. 11992 **/ 11993void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) 11994{ 11995 LIST_HEAD(completions); 11996 struct lpfc_hba *phba = ndlp->phba; 11997 struct lpfc_iocbq *tmp_iocb, *piocb; 11998 struct lpfc_sli_ring *pring; 11999 12000 pring = lpfc_phba_elsring(phba); 12001 12002 if (unlikely(!pring)) 12003 return; 12004 12005 spin_lock_irq(&phba->hbalock); 12006 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, 12007 list) { 12008 if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { 12009 12010 list_move_tail(&piocb->list, &completions); 12011 } 12012 } 12013 spin_unlock_irq(&phba->hbalock); 12014 12015 /* Cancel all the IOCBs from the completions list */ 12016 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 12017 IOERR_SLI_ABORTED); 12018} 12019 12020/** 12021 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list 12022 * @phba: pointer to lpfc hba data structure. 12023 * 12024 * This routine aborts all the IOCBs currently on the driver internal 12025 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS 12026 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB 12027 * list, removes IOCBs off the list, set the status field to 12028 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with 12029 * the IOCB. 12030 **/ 12031void lpfc_fabric_abort_hba(struct lpfc_hba *phba) 12032{ 12033 LIST_HEAD(completions); 12034 12035 spin_lock_irq(&phba->hbalock); 12036 list_splice_init(&phba->fabric_iocb_list, &completions); 12037 spin_unlock_irq(&phba->hbalock); 12038 12039 /* Cancel all the IOCBs from the completions list */ 12040 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 12041 IOERR_SLI_ABORTED); 12042} 12043 12044/** 12045 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport 12046 * @vport: pointer to lpfc vport data structure. 12047 * 12048 * This routine is invoked by the vport cleanup for deletions and the cleanup 12049 * for an ndlp on removal. 12050 **/ 12051void 12052lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport) 12053{ 12054 struct lpfc_hba *phba = vport->phba; 12055 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 12056 struct lpfc_nodelist *ndlp = NULL; 12057 unsigned long iflag = 0; 12058 12059 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock, iflag); 12060 list_for_each_entry_safe(sglq_entry, sglq_next, 12061 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { 12062 if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport) { 12063 lpfc_nlp_put(sglq_entry->ndlp); 12064 ndlp = sglq_entry->ndlp; 12065 sglq_entry->ndlp = NULL; 12066 12067 /* If the xri on the abts_els_sgl list is for the Fport 12068 * node and the vport is unloading, the xri aborted wcqe 12069 * likely isn't coming back. Just release the sgl. 12070 */ 12071 if (test_bit(FC_UNLOADING, &vport->load_flag) && 12072 ndlp->nlp_DID == Fabric_DID) { 12073 list_del(&sglq_entry->list); 12074 sglq_entry->state = SGL_FREED; 12075 list_add_tail(&sglq_entry->list, 12076 &phba->sli4_hba.lpfc_els_sgl_list); 12077 } 12078 } 12079 } 12080 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, iflag); 12081 return; 12082} 12083 12084/** 12085 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort 12086 * @phba: pointer to lpfc hba data structure. 12087 * @axri: pointer to the els xri abort wcqe structure. 12088 * 12089 * This routine is invoked by the worker thread to process a SLI4 slow-path 12090 * ELS aborted xri. 12091 **/ 12092void 12093lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba, 12094 struct sli4_wcqe_xri_aborted *axri) 12095{ 12096 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); 12097 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); 12098 uint16_t lxri = 0; 12099 12100 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 12101 unsigned long iflag = 0; 12102 struct lpfc_nodelist *ndlp; 12103 struct lpfc_sli_ring *pring; 12104 12105 pring = lpfc_phba_elsring(phba); 12106 12107 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock, iflag); 12108 list_for_each_entry_safe(sglq_entry, sglq_next, 12109 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { 12110 if (sglq_entry->sli4_xritag == xri) { 12111 list_del(&sglq_entry->list); 12112 ndlp = sglq_entry->ndlp; 12113 sglq_entry->ndlp = NULL; 12114 list_add_tail(&sglq_entry->list, 12115 &phba->sli4_hba.lpfc_els_sgl_list); 12116 sglq_entry->state = SGL_FREED; 12117 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, 12118 iflag); 12119 lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_SLI | 12120 LOG_DISCOVERY | LOG_NODE, 12121 "0732 ELS XRI ABORT on Node: ndlp=x%px " 12122 "xri=x%x\n", 12123 ndlp, xri); 12124 if (ndlp) { 12125 lpfc_set_rrq_active(phba, ndlp, 12126 sglq_entry->sli4_lxritag, 12127 rxid, 1); 12128 lpfc_nlp_put(ndlp); 12129 } 12130 12131 /* Check if TXQ queue needs to be serviced */ 12132 if (pring && !list_empty(&pring->txq)) 12133 lpfc_worker_wake_up(phba); 12134 return; 12135 } 12136 } 12137 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, iflag); 12138 lxri = lpfc_sli4_xri_inrange(phba, xri); 12139 if (lxri == NO_XRI) 12140 return; 12141 12142 spin_lock_irqsave(&phba->hbalock, iflag); 12143 sglq_entry = __lpfc_get_active_sglq(phba, lxri); 12144 if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) { 12145 spin_unlock_irqrestore(&phba->hbalock, iflag); 12146 return; 12147 } 12148 sglq_entry->state = SGL_XRI_ABORTED; 12149 spin_unlock_irqrestore(&phba->hbalock, iflag); 12150 return; 12151} 12152 12153/* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req. 12154 * @vport: pointer to virtual port object. 12155 * @ndlp: nodelist pointer for the impacted node. 12156 * 12157 * The driver calls this routine in response to an SLI4 XRI ABORT CQE 12158 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event, 12159 * the driver is required to send a LOGO to the remote node before it 12160 * attempts to recover its login to the remote node. 12161 */ 12162void 12163lpfc_sli_abts_recover_port(struct lpfc_vport *vport, 12164 struct lpfc_nodelist *ndlp) 12165{ 12166 struct Scsi_Host *shost; 12167 struct lpfc_hba *phba; 12168 unsigned long flags = 0; 12169 12170 shost = lpfc_shost_from_vport(vport); 12171 phba = vport->phba; 12172 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) { 12173 lpfc_printf_log(phba, KERN_INFO, 12174 LOG_SLI, "3093 No rport recovery needed. " 12175 "rport in state 0x%x\n", ndlp->nlp_state); 12176 return; 12177 } 12178 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 12179 "3094 Start rport recovery on shost id 0x%x " 12180 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x " 12181 "flag 0x%lx\n", 12182 shost->host_no, ndlp->nlp_DID, 12183 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state, 12184 ndlp->nlp_flag); 12185 /* 12186 * The rport is not responding. Remove the FCP-2 flag to prevent 12187 * an ADISC in the follow-up recovery code. 12188 */ 12189 spin_lock_irqsave(&ndlp->lock, flags); 12190 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 12191 spin_unlock_irqrestore(&ndlp->lock, flags); 12192 set_bit(NLP_ISSUE_LOGO, &ndlp->nlp_flag); 12193 lpfc_unreg_rpi(vport, ndlp); 12194} 12195 12196static void lpfc_init_cs_ctl_bitmap(struct lpfc_vport *vport) 12197{ 12198 bitmap_zero(vport->vmid_priority_range, LPFC_VMID_MAX_PRIORITY_RANGE); 12199} 12200 12201static void 12202lpfc_vmid_set_cs_ctl_range(struct lpfc_vport *vport, u32 min, u32 max) 12203{ 12204 u32 i; 12205 12206 if ((min > max) || (max > LPFC_VMID_MAX_PRIORITY_RANGE)) 12207 return; 12208 12209 for (i = min; i <= max; i++) 12210 set_bit(i, vport->vmid_priority_range); 12211} 12212 12213static void lpfc_vmid_put_cs_ctl(struct lpfc_vport *vport, u32 ctcl_vmid) 12214{ 12215 set_bit(ctcl_vmid, vport->vmid_priority_range); 12216} 12217 12218u32 lpfc_vmid_get_cs_ctl(struct lpfc_vport *vport) 12219{ 12220 u32 i; 12221 12222 i = find_first_bit(vport->vmid_priority_range, 12223 LPFC_VMID_MAX_PRIORITY_RANGE); 12224 12225 if (i == LPFC_VMID_MAX_PRIORITY_RANGE) 12226 return 0; 12227 12228 clear_bit(i, vport->vmid_priority_range); 12229 return i; 12230} 12231 12232#define MAX_PRIORITY_DESC 255 12233 12234static void 12235lpfc_cmpl_els_qfpa(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 12236 struct lpfc_iocbq *rspiocb) 12237{ 12238 struct lpfc_vport *vport = cmdiocb->vport; 12239 struct priority_range_desc *desc; 12240 struct lpfc_dmabuf *prsp = NULL; 12241 struct lpfc_vmid_priority_range *vmid_range = NULL; 12242 u32 *data; 12243 struct lpfc_dmabuf *dmabuf = cmdiocb->cmd_dmabuf; 12244 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 12245 u32 ulp_word4 = get_job_word4(phba, rspiocb); 12246 u8 *pcmd, max_desc; 12247 u32 len, i; 12248 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 12249 12250 prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list); 12251 if (!prsp) 12252 goto out; 12253 12254 pcmd = prsp->virt; 12255 data = (u32 *)pcmd; 12256 if (data[0] == ELS_CMD_LS_RJT) { 12257 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 12258 "3277 QFPA LS_RJT x%x x%x\n", 12259 data[0], data[1]); 12260 goto out; 12261 } 12262 if (ulp_status) { 12263 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 12264 "6529 QFPA failed with status x%x x%x\n", 12265 ulp_status, ulp_word4); 12266 goto out; 12267 } 12268 12269 if (!vport->qfpa_res) { 12270 max_desc = FCELSSIZE / sizeof(*vport->qfpa_res); 12271 vport->qfpa_res = kcalloc(max_desc, sizeof(*vport->qfpa_res), 12272 GFP_KERNEL); 12273 if (!vport->qfpa_res) 12274 goto out; 12275 } 12276 12277 len = *((u32 *)(pcmd + 4)); 12278 len = be32_to_cpu(len); 12279 memcpy(vport->qfpa_res, pcmd, len + 8); 12280 len = len / LPFC_PRIORITY_RANGE_DESC_SIZE; 12281 12282 desc = (struct priority_range_desc *)(pcmd + 8); 12283 vmid_range = vport->vmid_priority.vmid_range; 12284 if (!vmid_range) { 12285 vmid_range = kcalloc(MAX_PRIORITY_DESC, sizeof(*vmid_range), 12286 GFP_KERNEL); 12287 if (!vmid_range) { 12288 kfree(vport->qfpa_res); 12289 goto out; 12290 } 12291 vport->vmid_priority.vmid_range = vmid_range; 12292 } 12293 vport->vmid_priority.num_descriptors = len; 12294 12295 for (i = 0; i < len; i++, vmid_range++, desc++) { 12296 lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS, 12297 "6539 vmid values low=%d, high=%d, qos=%d, " 12298 "local ve id=%d\n", desc->lo_range, 12299 desc->hi_range, desc->qos_priority, 12300 desc->local_ve_id); 12301 12302 vmid_range->low = desc->lo_range << 1; 12303 if (desc->local_ve_id == QFPA_ODD_ONLY) 12304 vmid_range->low++; 12305 if (desc->qos_priority) 12306 vport->vmid_flag |= LPFC_VMID_QOS_ENABLED; 12307 vmid_range->qos = desc->qos_priority; 12308 12309 vmid_range->high = desc->hi_range << 1; 12310 if ((desc->local_ve_id == QFPA_ODD_ONLY) || 12311 (desc->local_ve_id == QFPA_EVEN_ODD)) 12312 vmid_range->high++; 12313 } 12314 lpfc_init_cs_ctl_bitmap(vport); 12315 for (i = 0; i < vport->vmid_priority.num_descriptors; i++) { 12316 lpfc_vmid_set_cs_ctl_range(vport, 12317 vport->vmid_priority.vmid_range[i].low, 12318 vport->vmid_priority.vmid_range[i].high); 12319 } 12320 12321 vport->vmid_flag |= LPFC_VMID_QFPA_CMPL; 12322 out: 12323 lpfc_els_free_iocb(phba, cmdiocb); 12324 lpfc_nlp_put(ndlp); 12325} 12326 12327int lpfc_issue_els_qfpa(struct lpfc_vport *vport) 12328{ 12329 struct lpfc_hba *phba = vport->phba; 12330 struct lpfc_nodelist *ndlp; 12331 struct lpfc_iocbq *elsiocb; 12332 u8 *pcmd; 12333 int ret; 12334 12335 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 12336 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 12337 return -ENXIO; 12338 12339 elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_QFPA_SIZE, 2, ndlp, 12340 ndlp->nlp_DID, ELS_CMD_QFPA); 12341 if (!elsiocb) 12342 return -ENOMEM; 12343 12344 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 12345 12346 *((u32 *)(pcmd)) = ELS_CMD_QFPA; 12347 pcmd += 4; 12348 12349 elsiocb->cmd_cmpl = lpfc_cmpl_els_qfpa; 12350 12351 elsiocb->ndlp = lpfc_nlp_get(ndlp); 12352 if (!elsiocb->ndlp) { 12353 lpfc_els_free_iocb(vport->phba, elsiocb); 12354 return -ENXIO; 12355 } 12356 12357 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 2); 12358 if (ret != IOCB_SUCCESS) { 12359 lpfc_els_free_iocb(phba, elsiocb); 12360 lpfc_nlp_put(ndlp); 12361 return -EIO; 12362 } 12363 vport->vmid_flag &= ~LPFC_VMID_QOS_ENABLED; 12364 return 0; 12365} 12366 12367int 12368lpfc_vmid_uvem(struct lpfc_vport *vport, 12369 struct lpfc_vmid *vmid, bool instantiated) 12370{ 12371 struct lpfc_vem_id_desc *vem_id_desc; 12372 struct lpfc_nodelist *ndlp; 12373 struct lpfc_iocbq *elsiocb; 12374 struct instantiated_ve_desc *inst_desc; 12375 struct lpfc_vmid_context *vmid_context; 12376 u8 *pcmd; 12377 u32 *len; 12378 int ret = 0; 12379 12380 ndlp = lpfc_findnode_did(vport, Fabric_DID); 12381 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 12382 return -ENXIO; 12383 12384 vmid_context = kmalloc(sizeof(*vmid_context), GFP_KERNEL); 12385 if (!vmid_context) 12386 return -ENOMEM; 12387 elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_UVEM_SIZE, 2, 12388 ndlp, Fabric_DID, ELS_CMD_UVEM); 12389 if (!elsiocb) 12390 goto out; 12391 12392 lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS, 12393 "3427 Host vmid %s %d\n", 12394 vmid->host_vmid, instantiated); 12395 vmid_context->vmp = vmid; 12396 vmid_context->nlp = ndlp; 12397 vmid_context->instantiated = instantiated; 12398 elsiocb->vmid_tag.vmid_context = vmid_context; 12399 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 12400 12401 if (!memchr_inv(vport->lpfc_vmid_host_uuid, 0, 12402 sizeof(vport->lpfc_vmid_host_uuid))) 12403 memcpy(vport->lpfc_vmid_host_uuid, vmid->host_vmid, 12404 sizeof(vport->lpfc_vmid_host_uuid)); 12405 12406 *((u32 *)(pcmd)) = ELS_CMD_UVEM; 12407 len = (u32 *)(pcmd + 4); 12408 *len = cpu_to_be32(LPFC_UVEM_SIZE - 8); 12409 12410 vem_id_desc = (struct lpfc_vem_id_desc *)(pcmd + 8); 12411 vem_id_desc->tag = be32_to_cpu(VEM_ID_DESC_TAG); 12412 vem_id_desc->length = be32_to_cpu(LPFC_UVEM_VEM_ID_DESC_SIZE); 12413 memcpy(vem_id_desc->vem_id, vport->lpfc_vmid_host_uuid, 12414 sizeof(vem_id_desc->vem_id)); 12415 12416 inst_desc = (struct instantiated_ve_desc *)(pcmd + 32); 12417 inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG); 12418 inst_desc->length = be32_to_cpu(LPFC_UVEM_VE_MAP_DESC_SIZE); 12419 memcpy(inst_desc->global_vem_id, vmid->host_vmid, 12420 sizeof(inst_desc->global_vem_id)); 12421 12422 bf_set(lpfc_instantiated_nport_id, inst_desc, vport->fc_myDID); 12423 bf_set(lpfc_instantiated_local_id, inst_desc, 12424 vmid->un.cs_ctl_vmid); 12425 if (instantiated) { 12426 inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG); 12427 } else { 12428 inst_desc->tag = be32_to_cpu(DEINSTANTIATED_VE_DESC_TAG); 12429 lpfc_vmid_put_cs_ctl(vport, vmid->un.cs_ctl_vmid); 12430 } 12431 inst_desc->word6 = cpu_to_be32(inst_desc->word6); 12432 12433 elsiocb->cmd_cmpl = lpfc_cmpl_els_uvem; 12434 12435 elsiocb->ndlp = lpfc_nlp_get(ndlp); 12436 if (!elsiocb->ndlp) { 12437 lpfc_els_free_iocb(vport->phba, elsiocb); 12438 goto out; 12439 } 12440 12441 ret = lpfc_sli_issue_iocb(vport->phba, LPFC_ELS_RING, elsiocb, 0); 12442 if (ret != IOCB_SUCCESS) { 12443 lpfc_els_free_iocb(vport->phba, elsiocb); 12444 lpfc_nlp_put(ndlp); 12445 goto out; 12446 } 12447 12448 return 0; 12449 out: 12450 kfree(vmid_context); 12451 return -EIO; 12452} 12453 12454static void 12455lpfc_cmpl_els_uvem(struct lpfc_hba *phba, struct lpfc_iocbq *icmdiocb, 12456 struct lpfc_iocbq *rspiocb) 12457{ 12458 struct lpfc_vport *vport = icmdiocb->vport; 12459 struct lpfc_dmabuf *prsp = NULL; 12460 struct lpfc_vmid_context *vmid_context = 12461 icmdiocb->vmid_tag.vmid_context; 12462 struct lpfc_nodelist *ndlp = icmdiocb->ndlp; 12463 u8 *pcmd; 12464 u32 *data; 12465 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 12466 u32 ulp_word4 = get_job_word4(phba, rspiocb); 12467 struct lpfc_dmabuf *dmabuf = icmdiocb->cmd_dmabuf; 12468 struct lpfc_vmid *vmid; 12469 12470 vmid = vmid_context->vmp; 12471 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 12472 ndlp = NULL; 12473 12474 prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list); 12475 if (!prsp) 12476 goto out; 12477 pcmd = prsp->virt; 12478 data = (u32 *)pcmd; 12479 if (data[0] == ELS_CMD_LS_RJT) { 12480 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 12481 "4532 UVEM LS_RJT %x %x\n", data[0], data[1]); 12482 goto out; 12483 } 12484 if (ulp_status) { 12485 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 12486 "4533 UVEM error status %x: %x\n", 12487 ulp_status, ulp_word4); 12488 goto out; 12489 } 12490 spin_lock(&phba->hbalock); 12491 /* Set IN USE flag */ 12492 vport->vmid_flag |= LPFC_VMID_IN_USE; 12493 phba->pport->vmid_flag |= LPFC_VMID_IN_USE; 12494 spin_unlock(&phba->hbalock); 12495 12496 if (vmid_context->instantiated) { 12497 write_lock(&vport->vmid_lock); 12498 vmid->flag |= LPFC_VMID_REGISTERED; 12499 vmid->flag &= ~LPFC_VMID_REQ_REGISTER; 12500 write_unlock(&vport->vmid_lock); 12501 } 12502 12503 out: 12504 kfree(vmid_context); 12505 lpfc_els_free_iocb(phba, icmdiocb); 12506 lpfc_nlp_put(ndlp); 12507}
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