1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2023 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 50 static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *, 51 struct lpfc_iocbq *); 52 static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *, 53 struct lpfc_iocbq *); 54 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport); 55 static int lpfc_issue_els_fdisc(struct lpfc_vport *vport, 56 struct lpfc_nodelist *ndlp, uint8_t retry); 57 static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba, 58 struct lpfc_iocbq *iocb); 59 static void lpfc_cmpl_els_edc(struct lpfc_hba *phba, 60 struct lpfc_iocbq *cmdiocb, 61 struct lpfc_iocbq *rspiocb); 62 static void lpfc_cmpl_els_uvem(struct lpfc_hba *, struct lpfc_iocbq *, 63 struct lpfc_iocbq *); 64 65 static int lpfc_max_els_tries = 3; 66 67 static void lpfc_init_cs_ctl_bitmap(struct lpfc_vport *vport); 68 static void lpfc_vmid_set_cs_ctl_range(struct lpfc_vport *vport, u32 min, u32 max); 69 static 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 **/ 93 int 94 lpfc_els_chk_latt(struct lpfc_vport *vport) 95 { 96 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 97 struct lpfc_hba *phba = vport->phba; 98 uint32_t ha_copy; 99 100 if (vport->port_state >= LPFC_VPORT_READY || 101 phba->link_state == LPFC_LINK_DOWN || 102 phba->sli_rev > LPFC_SLI_REV3) 103 return 0; 104 105 /* Read the HBA Host Attention Register */ 106 if (lpfc_readl(phba->HAregaddr, &ha_copy)) 107 return 1; 108 109 if (!(ha_copy & HA_LATT)) 110 return 0; 111 112 /* Pending Link Event during Discovery */ 113 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 114 "0237 Pending Link Event during " 115 "Discovery: State x%x\n", 116 phba->pport->port_state); 117 118 /* CLEAR_LA should re-enable link attention events and 119 * we should then immediately take a LATT event. The 120 * LATT processing should call lpfc_linkdown() which 121 * will cleanup any left over in-progress discovery 122 * events. 123 */ 124 spin_lock_irq(shost->host_lock); 125 vport->fc_flag |= FC_ABORT_DISCOVERY; 126 spin_unlock_irq(shost->host_lock); 127 128 if (phba->link_state != LPFC_CLEAR_LA) 129 lpfc_issue_clear_la(phba, vport); 130 131 return 1; 132 } 133 134 /** 135 * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure 136 * @vport: pointer to a host virtual N_Port data structure. 137 * @expect_rsp: flag indicating whether response is expected. 138 * @cmd_size: size of the ELS command. 139 * @retry: number of retries to the command when it fails. 140 * @ndlp: pointer to a node-list data structure. 141 * @did: destination identifier. 142 * @elscmd: the ELS command code. 143 * 144 * This routine is used for allocating a lpfc-IOCB data structure from 145 * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters 146 * passed into the routine for discovery state machine to issue an Extended 147 * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation 148 * and preparation routine that is used by all the discovery state machine 149 * routines and the ELS command-specific fields will be later set up by 150 * the individual discovery machine routines after calling this routine 151 * allocating and preparing a generic IOCB data structure. It fills in the 152 * Buffer Descriptor Entries (BDEs), allocates buffers for both command 153 * payload and response payload (if expected). The reference count on the 154 * ndlp is incremented by 1 and the reference to the ndlp is put into 155 * ndlp of the IOCB data structure for this IOCB to hold the ndlp 156 * reference for the command's callback function to access later. 157 * 158 * Return code 159 * Pointer to the newly allocated/prepared els iocb data structure 160 * NULL - when els iocb data structure allocation/preparation failed 161 **/ 162 struct lpfc_iocbq * 163 lpfc_prep_els_iocb(struct lpfc_vport *vport, u8 expect_rsp, 164 u16 cmd_size, u8 retry, 165 struct lpfc_nodelist *ndlp, u32 did, 166 u32 elscmd) 167 { 168 struct lpfc_hba *phba = vport->phba; 169 struct lpfc_iocbq *elsiocb; 170 struct lpfc_dmabuf *pcmd, *prsp, *pbuflist, *bmp; 171 struct ulp_bde64_le *bpl; 172 u32 timeout = 0; 173 174 if (!lpfc_is_link_up(phba)) 175 return NULL; 176 177 /* Allocate buffer for command iocb */ 178 elsiocb = lpfc_sli_get_iocbq(phba); 179 if (!elsiocb) 180 return NULL; 181 182 /* 183 * If this command is for fabric controller and HBA running 184 * in FIP mode send FLOGI, FDISC and LOGO as FIP frames. 185 */ 186 if ((did == Fabric_DID) && 187 (phba->hba_flag & HBA_FIP_SUPPORT) && 188 ((elscmd == ELS_CMD_FLOGI) || 189 (elscmd == ELS_CMD_FDISC) || 190 (elscmd == ELS_CMD_LOGO))) 191 switch (elscmd) { 192 case ELS_CMD_FLOGI: 193 elsiocb->cmd_flag |= 194 ((LPFC_ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT) 195 & LPFC_FIP_ELS_ID_MASK); 196 break; 197 case ELS_CMD_FDISC: 198 elsiocb->cmd_flag |= 199 ((LPFC_ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT) 200 & LPFC_FIP_ELS_ID_MASK); 201 break; 202 case ELS_CMD_LOGO: 203 elsiocb->cmd_flag |= 204 ((LPFC_ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT) 205 & LPFC_FIP_ELS_ID_MASK); 206 break; 207 } 208 else 209 elsiocb->cmd_flag &= ~LPFC_FIP_ELS_ID_MASK; 210 211 /* fill in BDEs for command */ 212 /* Allocate buffer for command payload */ 213 pcmd = kmalloc(sizeof(*pcmd), GFP_KERNEL); 214 if (pcmd) 215 pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys); 216 if (!pcmd || !pcmd->virt) 217 goto els_iocb_free_pcmb_exit; 218 219 INIT_LIST_HEAD(&pcmd->list); 220 221 /* Allocate buffer for response payload */ 222 if (expect_rsp) { 223 prsp = kmalloc(sizeof(*prsp), GFP_KERNEL); 224 if (prsp) 225 prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 226 &prsp->phys); 227 if (!prsp || !prsp->virt) 228 goto els_iocb_free_prsp_exit; 229 INIT_LIST_HEAD(&prsp->list); 230 } else { 231 prsp = NULL; 232 } 233 234 /* Allocate buffer for Buffer ptr list */ 235 pbuflist = kmalloc(sizeof(*pbuflist), GFP_KERNEL); 236 if (pbuflist) 237 pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 238 &pbuflist->phys); 239 if (!pbuflist || !pbuflist->virt) 240 goto els_iocb_free_pbuf_exit; 241 242 INIT_LIST_HEAD(&pbuflist->list); 243 244 if (expect_rsp) { 245 switch (elscmd) { 246 case ELS_CMD_FLOGI: 247 timeout = FF_DEF_RATOV * 2; 248 break; 249 case ELS_CMD_LOGO: 250 timeout = phba->fc_ratov; 251 break; 252 default: 253 timeout = phba->fc_ratov * 2; 254 } 255 256 /* Fill SGE for the num bde count */ 257 elsiocb->num_bdes = 2; 258 } 259 260 if (phba->sli_rev == LPFC_SLI_REV4) 261 bmp = pcmd; 262 else 263 bmp = pbuflist; 264 265 lpfc_sli_prep_els_req_rsp(phba, elsiocb, vport, bmp, cmd_size, did, 266 elscmd, timeout, expect_rsp); 267 268 bpl = (struct ulp_bde64_le *)pbuflist->virt; 269 bpl->addr_low = cpu_to_le32(putPaddrLow(pcmd->phys)); 270 bpl->addr_high = cpu_to_le32(putPaddrHigh(pcmd->phys)); 271 bpl->type_size = cpu_to_le32(cmd_size); 272 bpl->type_size |= cpu_to_le32(ULP_BDE64_TYPE_BDE_64); 273 274 if (expect_rsp) { 275 bpl++; 276 bpl->addr_low = cpu_to_le32(putPaddrLow(prsp->phys)); 277 bpl->addr_high = cpu_to_le32(putPaddrHigh(prsp->phys)); 278 bpl->type_size = cpu_to_le32(FCELSSIZE); 279 bpl->type_size |= cpu_to_le32(ULP_BDE64_TYPE_BDE_64); 280 } 281 282 elsiocb->cmd_dmabuf = pcmd; 283 elsiocb->bpl_dmabuf = pbuflist; 284 elsiocb->retry = retry; 285 elsiocb->vport = vport; 286 elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT; 287 288 if (prsp) 289 list_add(&prsp->list, &pcmd->list); 290 if (expect_rsp) { 291 /* Xmit ELS command <elsCmd> to remote NPORT <did> */ 292 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 293 "0116 Xmit ELS command x%x to remote " 294 "NPORT x%x I/O tag: x%x, port state:x%x " 295 "rpi x%x fc_flag:x%x\n", 296 elscmd, did, elsiocb->iotag, 297 vport->port_state, ndlp->nlp_rpi, 298 vport->fc_flag); 299 } else { 300 /* Xmit ELS response <elsCmd> to remote NPORT <did> */ 301 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 302 "0117 Xmit ELS response x%x to remote " 303 "NPORT x%x I/O tag: x%x, size: x%x " 304 "port_state x%x rpi x%x fc_flag x%x\n", 305 elscmd, ndlp->nlp_DID, elsiocb->iotag, 306 cmd_size, vport->port_state, 307 ndlp->nlp_rpi, vport->fc_flag); 308 } 309 310 return elsiocb; 311 312 els_iocb_free_pbuf_exit: 313 if (expect_rsp) 314 lpfc_mbuf_free(phba, prsp->virt, prsp->phys); 315 kfree(pbuflist); 316 317 els_iocb_free_prsp_exit: 318 lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); 319 kfree(prsp); 320 321 els_iocb_free_pcmb_exit: 322 kfree(pcmd); 323 lpfc_sli_release_iocbq(phba, elsiocb); 324 return NULL; 325 } 326 327 /** 328 * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport 329 * @vport: pointer to a host virtual N_Port data structure. 330 * 331 * This routine issues a fabric registration login for a @vport. An 332 * active ndlp node with Fabric_DID must already exist for this @vport. 333 * The routine invokes two mailbox commands to carry out fabric registration 334 * login through the HBA firmware: the first mailbox command requests the 335 * HBA to perform link configuration for the @vport; and the second mailbox 336 * command requests the HBA to perform the actual fabric registration login 337 * with the @vport. 338 * 339 * Return code 340 * 0 - successfully issued fabric registration login for @vport 341 * -ENXIO -- failed to issue fabric registration login for @vport 342 **/ 343 int 344 lpfc_issue_fabric_reglogin(struct lpfc_vport *vport) 345 { 346 struct lpfc_hba *phba = vport->phba; 347 LPFC_MBOXQ_t *mbox; 348 struct lpfc_nodelist *ndlp; 349 struct serv_parm *sp; 350 int rc; 351 int err = 0; 352 353 sp = &phba->fc_fabparam; 354 ndlp = lpfc_findnode_did(vport, Fabric_DID); 355 if (!ndlp) { 356 err = 1; 357 goto fail; 358 } 359 360 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 361 if (!mbox) { 362 err = 2; 363 goto fail; 364 } 365 366 vport->port_state = LPFC_FABRIC_CFG_LINK; 367 lpfc_config_link(phba, mbox); 368 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 369 mbox->vport = vport; 370 371 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 372 if (rc == MBX_NOT_FINISHED) { 373 err = 3; 374 goto fail_free_mbox; 375 } 376 377 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 378 if (!mbox) { 379 err = 4; 380 goto fail; 381 } 382 rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox, 383 ndlp->nlp_rpi); 384 if (rc) { 385 err = 5; 386 goto fail_free_mbox; 387 } 388 389 mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login; 390 mbox->vport = vport; 391 /* increment the reference count on ndlp to hold reference 392 * for the callback routine. 393 */ 394 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 395 if (!mbox->ctx_ndlp) { 396 err = 6; 397 goto fail_free_mbox; 398 } 399 400 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 401 if (rc == MBX_NOT_FINISHED) { 402 err = 7; 403 goto fail_issue_reg_login; 404 } 405 406 return 0; 407 408 fail_issue_reg_login: 409 /* decrement the reference count on ndlp just incremented 410 * for the failed mbox command. 411 */ 412 lpfc_nlp_put(ndlp); 413 fail_free_mbox: 414 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 415 fail: 416 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 417 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 418 "0249 Cannot issue Register Fabric login: Err %d\n", 419 err); 420 return -ENXIO; 421 } 422 423 /** 424 * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login 425 * @vport: pointer to a host virtual N_Port data structure. 426 * 427 * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for 428 * the @vport. This mailbox command is necessary for SLI4 port only. 429 * 430 * Return code 431 * 0 - successfully issued REG_VFI for @vport 432 * A failure code otherwise. 433 **/ 434 int 435 lpfc_issue_reg_vfi(struct lpfc_vport *vport) 436 { 437 struct lpfc_hba *phba = vport->phba; 438 LPFC_MBOXQ_t *mboxq = NULL; 439 struct lpfc_nodelist *ndlp; 440 struct lpfc_dmabuf *dmabuf = NULL; 441 int rc = 0; 442 443 /* move forward in case of SLI4 FC port loopback test and pt2pt mode */ 444 if ((phba->sli_rev == LPFC_SLI_REV4) && 445 !(phba->link_flag & LS_LOOPBACK_MODE) && 446 !(vport->fc_flag & FC_PT2PT)) { 447 ndlp = lpfc_findnode_did(vport, Fabric_DID); 448 if (!ndlp) { 449 rc = -ENODEV; 450 goto fail; 451 } 452 } 453 454 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 455 if (!mboxq) { 456 rc = -ENOMEM; 457 goto fail; 458 } 459 460 /* Supply CSP's only if we are fabric connect or pt-to-pt connect */ 461 if ((vport->fc_flag & FC_FABRIC) || (vport->fc_flag & FC_PT2PT)) { 462 rc = lpfc_mbox_rsrc_prep(phba, mboxq); 463 if (rc) { 464 rc = -ENOMEM; 465 goto fail_mbox; 466 } 467 dmabuf = mboxq->ctx_buf; 468 memcpy(dmabuf->virt, &phba->fc_fabparam, 469 sizeof(struct serv_parm)); 470 } 471 472 vport->port_state = LPFC_FABRIC_CFG_LINK; 473 if (dmabuf) { 474 lpfc_reg_vfi(mboxq, vport, dmabuf->phys); 475 /* lpfc_reg_vfi memsets the mailbox. Restore the ctx_buf. */ 476 mboxq->ctx_buf = dmabuf; 477 } else { 478 lpfc_reg_vfi(mboxq, vport, 0); 479 } 480 481 mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi; 482 mboxq->vport = vport; 483 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 484 if (rc == MBX_NOT_FINISHED) { 485 rc = -ENXIO; 486 goto fail_mbox; 487 } 488 return 0; 489 490 fail_mbox: 491 lpfc_mbox_rsrc_cleanup(phba, mboxq, MBOX_THD_UNLOCKED); 492 fail: 493 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 494 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 495 "0289 Issue Register VFI failed: Err %d\n", rc); 496 return rc; 497 } 498 499 /** 500 * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login 501 * @vport: pointer to a host virtual N_Port data structure. 502 * 503 * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for 504 * the @vport. This mailbox command is necessary for SLI4 port only. 505 * 506 * Return code 507 * 0 - successfully issued REG_VFI for @vport 508 * A failure code otherwise. 509 **/ 510 int 511 lpfc_issue_unreg_vfi(struct lpfc_vport *vport) 512 { 513 struct lpfc_hba *phba = vport->phba; 514 struct Scsi_Host *shost; 515 LPFC_MBOXQ_t *mboxq; 516 int rc; 517 518 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 519 if (!mboxq) { 520 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 521 "2556 UNREG_VFI mbox allocation failed" 522 "HBA state x%x\n", phba->pport->port_state); 523 return -ENOMEM; 524 } 525 526 lpfc_unreg_vfi(mboxq, vport); 527 mboxq->vport = vport; 528 mboxq->mbox_cmpl = lpfc_unregister_vfi_cmpl; 529 530 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 531 if (rc == MBX_NOT_FINISHED) { 532 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 533 "2557 UNREG_VFI issue mbox failed rc x%x " 534 "HBA state x%x\n", 535 rc, phba->pport->port_state); 536 mempool_free(mboxq, phba->mbox_mem_pool); 537 return -EIO; 538 } 539 540 shost = lpfc_shost_from_vport(vport); 541 spin_lock_irq(shost->host_lock); 542 vport->fc_flag &= ~FC_VFI_REGISTERED; 543 spin_unlock_irq(shost->host_lock); 544 return 0; 545 } 546 547 /** 548 * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean. 549 * @vport: pointer to a host virtual N_Port data structure. 550 * @sp: pointer to service parameter data structure. 551 * 552 * This routine is called from FLOGI/FDISC completion handler functions. 553 * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric 554 * node nodename is changed in the completion service parameter else return 555 * 0. This function also set flag in the vport data structure to delay 556 * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit 557 * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric 558 * node nodename is changed in the completion service parameter. 559 * 560 * Return code 561 * 0 - FCID and Fabric Nodename and Fabric portname is not changed. 562 * 1 - FCID or Fabric Nodename or Fabric portname is changed. 563 * 564 **/ 565 static uint8_t 566 lpfc_check_clean_addr_bit(struct lpfc_vport *vport, 567 struct serv_parm *sp) 568 { 569 struct lpfc_hba *phba = vport->phba; 570 uint8_t fabric_param_changed = 0; 571 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 572 573 if ((vport->fc_prevDID != vport->fc_myDID) || 574 memcmp(&vport->fabric_portname, &sp->portName, 575 sizeof(struct lpfc_name)) || 576 memcmp(&vport->fabric_nodename, &sp->nodeName, 577 sizeof(struct lpfc_name)) || 578 (vport->vport_flag & FAWWPN_PARAM_CHG)) { 579 fabric_param_changed = 1; 580 vport->vport_flag &= ~FAWWPN_PARAM_CHG; 581 } 582 /* 583 * Word 1 Bit 31 in common service parameter is overloaded. 584 * Word 1 Bit 31 in FLOGI request is multiple NPort request 585 * Word 1 Bit 31 in FLOGI response is clean address bit 586 * 587 * If fabric parameter is changed and clean address bit is 588 * cleared delay nport discovery if 589 * - vport->fc_prevDID != 0 (not initial discovery) OR 590 * - lpfc_delay_discovery module parameter is set. 591 */ 592 if (fabric_param_changed && !sp->cmn.clean_address_bit && 593 (vport->fc_prevDID || phba->cfg_delay_discovery)) { 594 spin_lock_irq(shost->host_lock); 595 vport->fc_flag |= FC_DISC_DELAYED; 596 spin_unlock_irq(shost->host_lock); 597 } 598 599 return fabric_param_changed; 600 } 601 602 603 /** 604 * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port 605 * @vport: pointer to a host virtual N_Port data structure. 606 * @ndlp: pointer to a node-list data structure. 607 * @sp: pointer to service parameter data structure. 608 * @ulp_word4: command response value 609 * 610 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback 611 * function to handle the completion of a Fabric Login (FLOGI) into a fabric 612 * port in a fabric topology. It properly sets up the parameters to the @ndlp 613 * from the IOCB response. It also check the newly assigned N_Port ID to the 614 * @vport against the previously assigned N_Port ID. If it is different from 615 * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine 616 * is invoked on all the remaining nodes with the @vport to unregister the 617 * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin() 618 * is invoked to register login to the fabric. 619 * 620 * Return code 621 * 0 - Success (currently, always return 0) 622 **/ 623 static int 624 lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 625 struct serv_parm *sp, uint32_t ulp_word4) 626 { 627 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 628 struct lpfc_hba *phba = vport->phba; 629 struct lpfc_nodelist *np; 630 struct lpfc_nodelist *next_np; 631 uint8_t fabric_param_changed; 632 633 spin_lock_irq(shost->host_lock); 634 vport->fc_flag |= FC_FABRIC; 635 spin_unlock_irq(shost->host_lock); 636 637 phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov); 638 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 639 phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000; 640 641 phba->fc_edtovResol = sp->cmn.edtovResolution; 642 phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000; 643 644 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 645 spin_lock_irq(shost->host_lock); 646 vport->fc_flag |= FC_PUBLIC_LOOP; 647 spin_unlock_irq(shost->host_lock); 648 } 649 650 vport->fc_myDID = ulp_word4 & Mask_DID; 651 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); 652 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name)); 653 ndlp->nlp_class_sup = 0; 654 if (sp->cls1.classValid) 655 ndlp->nlp_class_sup |= FC_COS_CLASS1; 656 if (sp->cls2.classValid) 657 ndlp->nlp_class_sup |= FC_COS_CLASS2; 658 if (sp->cls3.classValid) 659 ndlp->nlp_class_sup |= FC_COS_CLASS3; 660 if (sp->cls4.classValid) 661 ndlp->nlp_class_sup |= FC_COS_CLASS4; 662 ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | 663 sp->cmn.bbRcvSizeLsb; 664 665 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); 666 if (fabric_param_changed) { 667 /* Reset FDMI attribute masks based on config parameter */ 668 if (phba->cfg_enable_SmartSAN || 669 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { 670 /* Setup appropriate attribute masks */ 671 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR; 672 if (phba->cfg_enable_SmartSAN) 673 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR; 674 else 675 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR; 676 } else { 677 vport->fdmi_hba_mask = 0; 678 vport->fdmi_port_mask = 0; 679 } 680 681 } 682 memcpy(&vport->fabric_portname, &sp->portName, 683 sizeof(struct lpfc_name)); 684 memcpy(&vport->fabric_nodename, &sp->nodeName, 685 sizeof(struct lpfc_name)); 686 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 687 688 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { 689 if (sp->cmn.response_multiple_NPort) { 690 lpfc_printf_vlog(vport, KERN_WARNING, 691 LOG_ELS | LOG_VPORT, 692 "1816 FLOGI NPIV supported, " 693 "response data 0x%x\n", 694 sp->cmn.response_multiple_NPort); 695 spin_lock_irq(&phba->hbalock); 696 phba->link_flag |= LS_NPIV_FAB_SUPPORTED; 697 spin_unlock_irq(&phba->hbalock); 698 } else { 699 /* Because we asked f/w for NPIV it still expects us 700 to call reg_vnpid at least for the physical host */ 701 lpfc_printf_vlog(vport, KERN_WARNING, 702 LOG_ELS | LOG_VPORT, 703 "1817 Fabric does not support NPIV " 704 "- configuring single port mode.\n"); 705 spin_lock_irq(&phba->hbalock); 706 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 707 spin_unlock_irq(&phba->hbalock); 708 } 709 } 710 711 /* 712 * For FC we need to do some special processing because of the SLI 713 * Port's default settings of the Common Service Parameters. 714 */ 715 if ((phba->sli_rev == LPFC_SLI_REV4) && 716 (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)) { 717 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */ 718 if (fabric_param_changed) 719 lpfc_unregister_fcf_prep(phba); 720 721 /* This should just update the VFI CSPs*/ 722 if (vport->fc_flag & FC_VFI_REGISTERED) 723 lpfc_issue_reg_vfi(vport); 724 } 725 726 if (fabric_param_changed && 727 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { 728 729 /* If our NportID changed, we need to ensure all 730 * remaining NPORTs get unreg_login'ed. 731 */ 732 list_for_each_entry_safe(np, next_np, 733 &vport->fc_nodes, nlp_listp) { 734 if ((np->nlp_state != NLP_STE_NPR_NODE) || 735 !(np->nlp_flag & NLP_NPR_ADISC)) 736 continue; 737 spin_lock_irq(&np->lock); 738 np->nlp_flag &= ~NLP_NPR_ADISC; 739 spin_unlock_irq(&np->lock); 740 lpfc_unreg_rpi(vport, np); 741 } 742 lpfc_cleanup_pending_mbox(vport); 743 744 if (phba->sli_rev == LPFC_SLI_REV4) { 745 lpfc_sli4_unreg_all_rpis(vport); 746 lpfc_mbx_unreg_vpi(vport); 747 spin_lock_irq(shost->host_lock); 748 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 749 spin_unlock_irq(shost->host_lock); 750 } 751 752 /* 753 * For SLI3 and SLI4, the VPI needs to be reregistered in 754 * response to this fabric parameter change event. 755 */ 756 spin_lock_irq(shost->host_lock); 757 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 758 spin_unlock_irq(shost->host_lock); 759 } else if ((phba->sli_rev == LPFC_SLI_REV4) && 760 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { 761 /* 762 * Driver needs to re-reg VPI in order for f/w 763 * to update the MAC address. 764 */ 765 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 766 lpfc_register_new_vport(phba, vport, ndlp); 767 return 0; 768 } 769 770 if (phba->sli_rev < LPFC_SLI_REV4) { 771 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); 772 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED && 773 vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) 774 lpfc_register_new_vport(phba, vport, ndlp); 775 else 776 lpfc_issue_fabric_reglogin(vport); 777 } else { 778 ndlp->nlp_type |= NLP_FABRIC; 779 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 780 if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) && 781 (vport->vpi_state & LPFC_VPI_REGISTERED)) { 782 lpfc_start_fdiscs(phba); 783 lpfc_do_scr_ns_plogi(phba, vport); 784 } else if (vport->fc_flag & FC_VFI_REGISTERED) 785 lpfc_issue_init_vpi(vport); 786 else { 787 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 788 "3135 Need register VFI: (x%x/%x)\n", 789 vport->fc_prevDID, vport->fc_myDID); 790 lpfc_issue_reg_vfi(vport); 791 } 792 } 793 return 0; 794 } 795 796 /** 797 * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port 798 * @vport: pointer to a host virtual N_Port data structure. 799 * @ndlp: pointer to a node-list data structure. 800 * @sp: pointer to service parameter data structure. 801 * 802 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback 803 * function to handle the completion of a Fabric Login (FLOGI) into an N_Port 804 * in a point-to-point topology. First, the @vport's N_Port Name is compared 805 * with the received N_Port Name: if the @vport's N_Port Name is greater than 806 * the received N_Port Name lexicographically, this node shall assign local 807 * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and 808 * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise, 809 * this node shall just wait for the remote node to issue PLOGI and assign 810 * N_Port IDs. 811 * 812 * Return code 813 * 0 - Success 814 * -ENXIO - Fail 815 **/ 816 static int 817 lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 818 struct serv_parm *sp) 819 { 820 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 821 struct lpfc_hba *phba = vport->phba; 822 LPFC_MBOXQ_t *mbox; 823 int rc; 824 825 spin_lock_irq(shost->host_lock); 826 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 827 vport->fc_flag |= FC_PT2PT; 828 spin_unlock_irq(shost->host_lock); 829 830 /* If we are pt2pt with another NPort, force NPIV off! */ 831 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 832 833 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */ 834 if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) { 835 lpfc_unregister_fcf_prep(phba); 836 837 spin_lock_irq(shost->host_lock); 838 vport->fc_flag &= ~FC_VFI_REGISTERED; 839 spin_unlock_irq(shost->host_lock); 840 phba->fc_topology_changed = 0; 841 } 842 843 rc = memcmp(&vport->fc_portname, &sp->portName, 844 sizeof(vport->fc_portname)); 845 846 if (rc >= 0) { 847 /* This side will initiate the PLOGI */ 848 spin_lock_irq(shost->host_lock); 849 vport->fc_flag |= FC_PT2PT_PLOGI; 850 spin_unlock_irq(shost->host_lock); 851 852 /* 853 * N_Port ID cannot be 0, set our Id to LocalID 854 * the other side will be RemoteID. 855 */ 856 857 /* not equal */ 858 if (rc) 859 vport->fc_myDID = PT2PT_LocalID; 860 861 /* If not registered with a transport, decrement ndlp reference 862 * count indicating that ndlp can be safely released when other 863 * references are removed. 864 */ 865 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) 866 lpfc_nlp_put(ndlp); 867 868 ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID); 869 if (!ndlp) { 870 /* 871 * Cannot find existing Fabric ndlp, so allocate a 872 * new one 873 */ 874 ndlp = lpfc_nlp_init(vport, PT2PT_RemoteID); 875 if (!ndlp) 876 goto fail; 877 } 878 879 memcpy(&ndlp->nlp_portname, &sp->portName, 880 sizeof(struct lpfc_name)); 881 memcpy(&ndlp->nlp_nodename, &sp->nodeName, 882 sizeof(struct lpfc_name)); 883 /* Set state will put ndlp onto node list if not already done */ 884 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 885 spin_lock_irq(&ndlp->lock); 886 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 887 spin_unlock_irq(&ndlp->lock); 888 889 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 890 if (!mbox) 891 goto fail; 892 893 lpfc_config_link(phba, mbox); 894 895 mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 896 mbox->vport = vport; 897 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 898 if (rc == MBX_NOT_FINISHED) { 899 mempool_free(mbox, phba->mbox_mem_pool); 900 goto fail; 901 } 902 } else { 903 /* This side will wait for the PLOGI. If not registered with 904 * a transport, decrement node reference count indicating that 905 * ndlp can be released when other references are removed. 906 */ 907 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) 908 lpfc_nlp_put(ndlp); 909 910 /* Start discovery - this should just do CLEAR_LA */ 911 lpfc_disc_start(vport); 912 } 913 914 return 0; 915 fail: 916 return -ENXIO; 917 } 918 919 /** 920 * lpfc_cmpl_els_flogi - Completion callback function for flogi 921 * @phba: pointer to lpfc hba data structure. 922 * @cmdiocb: pointer to lpfc command iocb data structure. 923 * @rspiocb: pointer to lpfc response iocb data structure. 924 * 925 * This routine is the top-level completion callback function for issuing 926 * a Fabric Login (FLOGI) command. If the response IOCB reported error, 927 * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If 928 * retry has been made (either immediately or delayed with lpfc_els_retry() 929 * returning 1), the command IOCB will be released and function returned. 930 * If the retry attempt has been given up (possibly reach the maximum 931 * number of retries), one additional decrement of ndlp reference shall be 932 * invoked before going out after releasing the command IOCB. This will 933 * actually release the remote node (Note, lpfc_els_free_iocb() will also 934 * invoke one decrement of ndlp reference count). If no error reported in 935 * the IOCB status, the command Port ID field is used to determine whether 936 * this is a point-to-point topology or a fabric topology: if the Port ID 937 * field is assigned, it is a fabric topology; otherwise, it is a 938 * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or 939 * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the 940 * specific topology completion conditions. 941 **/ 942 static void 943 lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 944 struct lpfc_iocbq *rspiocb) 945 { 946 struct lpfc_vport *vport = cmdiocb->vport; 947 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 948 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 949 IOCB_t *irsp; 950 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf, *prsp; 951 struct serv_parm *sp; 952 uint16_t fcf_index; 953 int rc; 954 u32 ulp_status, ulp_word4, tmo; 955 bool flogi_in_retry = false; 956 957 /* Check to see if link went down during discovery */ 958 if (lpfc_els_chk_latt(vport)) { 959 /* One additional decrement on node reference count to 960 * trigger the release of the node 961 */ 962 if (!(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) 963 lpfc_nlp_put(ndlp); 964 goto out; 965 } 966 967 ulp_status = get_job_ulpstatus(phba, rspiocb); 968 ulp_word4 = get_job_word4(phba, rspiocb); 969 970 if (phba->sli_rev == LPFC_SLI_REV4) { 971 tmo = get_wqe_tmo(cmdiocb); 972 } else { 973 irsp = &rspiocb->iocb; 974 tmo = irsp->ulpTimeout; 975 } 976 977 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 978 "FLOGI cmpl: status:x%x/x%x state:x%x", 979 ulp_status, ulp_word4, 980 vport->port_state); 981 982 if (ulp_status) { 983 /* 984 * In case of FIP mode, perform roundrobin FCF failover 985 * due to new FCF discovery 986 */ 987 if ((phba->hba_flag & HBA_FIP_SUPPORT) && 988 (phba->fcf.fcf_flag & FCF_DISCOVERY)) { 989 if (phba->link_state < LPFC_LINK_UP) 990 goto stop_rr_fcf_flogi; 991 if ((phba->fcoe_cvl_eventtag_attn == 992 phba->fcoe_cvl_eventtag) && 993 (ulp_status == IOSTAT_LOCAL_REJECT) && 994 ((ulp_word4 & IOERR_PARAM_MASK) == 995 IOERR_SLI_ABORTED)) 996 goto stop_rr_fcf_flogi; 997 else 998 phba->fcoe_cvl_eventtag_attn = 999 phba->fcoe_cvl_eventtag; 1000 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 1001 "2611 FLOGI failed on FCF (x%x), " 1002 "status:x%x/x%x, tmo:x%x, perform " 1003 "roundrobin FCF failover\n", 1004 phba->fcf.current_rec.fcf_indx, 1005 ulp_status, ulp_word4, tmo); 1006 lpfc_sli4_set_fcf_flogi_fail(phba, 1007 phba->fcf.current_rec.fcf_indx); 1008 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 1009 rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index); 1010 if (rc) 1011 goto out; 1012 } 1013 1014 stop_rr_fcf_flogi: 1015 /* FLOGI failure */ 1016 if (!(ulp_status == IOSTAT_LOCAL_REJECT && 1017 ((ulp_word4 & IOERR_PARAM_MASK) == 1018 IOERR_LOOP_OPEN_FAILURE))) 1019 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1020 "2858 FLOGI failure Status:x%x/x%x TMO" 1021 ":x%x Data x%x x%x\n", 1022 ulp_status, ulp_word4, tmo, 1023 phba->hba_flag, phba->fcf.fcf_flag); 1024 1025 /* Check for retry */ 1026 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { 1027 /* Address a timing race with dev_loss. If dev_loss 1028 * is active on this FPort node, put the initial ref 1029 * count back to stop premature node release actions. 1030 */ 1031 lpfc_check_nlp_post_devloss(vport, ndlp); 1032 flogi_in_retry = true; 1033 goto out; 1034 } 1035 1036 /* The FLOGI will not be retried. If the FPort node is not 1037 * registered with the SCSI transport, remove the initial 1038 * reference to trigger node release. 1039 */ 1040 if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS) && 1041 !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) 1042 lpfc_nlp_put(ndlp); 1043 1044 lpfc_printf_vlog(vport, KERN_WARNING, LOG_TRACE_EVENT, 1045 "0150 FLOGI failure Status:x%x/x%x " 1046 "xri x%x TMO:x%x refcnt %d\n", 1047 ulp_status, ulp_word4, cmdiocb->sli4_xritag, 1048 tmo, kref_read(&ndlp->kref)); 1049 1050 /* If this is not a loop open failure, bail out */ 1051 if (!(ulp_status == IOSTAT_LOCAL_REJECT && 1052 ((ulp_word4 & IOERR_PARAM_MASK) == 1053 IOERR_LOOP_OPEN_FAILURE))) { 1054 /* FLOGI failure */ 1055 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1056 "0100 FLOGI failure Status:x%x/x%x " 1057 "TMO:x%x\n", 1058 ulp_status, ulp_word4, tmo); 1059 goto flogifail; 1060 } 1061 1062 /* FLOGI failed, so there is no fabric */ 1063 spin_lock_irq(shost->host_lock); 1064 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP | 1065 FC_PT2PT_NO_NVME); 1066 spin_unlock_irq(shost->host_lock); 1067 1068 /* If private loop, then allow max outstanding els to be 1069 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no 1070 * alpa map would take too long otherwise. 1071 */ 1072 if (phba->alpa_map[0] == 0) 1073 vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS; 1074 if ((phba->sli_rev == LPFC_SLI_REV4) && 1075 (!(vport->fc_flag & FC_VFI_REGISTERED) || 1076 (vport->fc_prevDID != vport->fc_myDID) || 1077 phba->fc_topology_changed)) { 1078 if (vport->fc_flag & FC_VFI_REGISTERED) { 1079 if (phba->fc_topology_changed) { 1080 lpfc_unregister_fcf_prep(phba); 1081 spin_lock_irq(shost->host_lock); 1082 vport->fc_flag &= ~FC_VFI_REGISTERED; 1083 spin_unlock_irq(shost->host_lock); 1084 phba->fc_topology_changed = 0; 1085 } else { 1086 lpfc_sli4_unreg_all_rpis(vport); 1087 } 1088 } 1089 1090 /* Do not register VFI if the driver aborted FLOGI */ 1091 if (!lpfc_error_lost_link(ulp_status, ulp_word4)) 1092 lpfc_issue_reg_vfi(vport); 1093 1094 lpfc_nlp_put(ndlp); 1095 goto out; 1096 } 1097 goto flogifail; 1098 } 1099 spin_lock_irq(shost->host_lock); 1100 vport->fc_flag &= ~FC_VPORT_CVL_RCVD; 1101 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; 1102 spin_unlock_irq(shost->host_lock); 1103 1104 /* 1105 * The FLOGI succeeded. Sync the data for the CPU before 1106 * accessing it. 1107 */ 1108 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1109 if (!prsp) 1110 goto out; 1111 sp = prsp->virt + sizeof(uint32_t); 1112 1113 /* FLOGI completes successfully */ 1114 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1115 "0101 FLOGI completes successfully, I/O tag:x%x " 1116 "xri x%x Data: x%x x%x x%x x%x x%x x%x x%x %d\n", 1117 cmdiocb->iotag, cmdiocb->sli4_xritag, 1118 ulp_word4, sp->cmn.e_d_tov, 1119 sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution, 1120 vport->port_state, vport->fc_flag, 1121 sp->cmn.priority_tagging, kref_read(&ndlp->kref)); 1122 1123 if (sp->cmn.priority_tagging) 1124 vport->phba->pport->vmid_flag |= (LPFC_VMID_ISSUE_QFPA | 1125 LPFC_VMID_TYPE_PRIO); 1126 /* reinitialize the VMID datastructure before returning */ 1127 if (lpfc_is_vmid_enabled(phba)) 1128 lpfc_reinit_vmid(vport); 1129 1130 /* 1131 * Address a timing race with dev_loss. If dev_loss is active on 1132 * this FPort node, put the initial ref count back to stop premature 1133 * node release actions. 1134 */ 1135 lpfc_check_nlp_post_devloss(vport, ndlp); 1136 if (vport->port_state == LPFC_FLOGI) { 1137 /* 1138 * If Common Service Parameters indicate Nport 1139 * we are point to point, if Fport we are Fabric. 1140 */ 1141 if (sp->cmn.fPort) 1142 rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, 1143 ulp_word4); 1144 else if (!(phba->hba_flag & HBA_FCOE_MODE)) 1145 rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp); 1146 else { 1147 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1148 "2831 FLOGI response with cleared Fabric " 1149 "bit fcf_index 0x%x " 1150 "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x " 1151 "Fabric Name " 1152 "%02x%02x%02x%02x%02x%02x%02x%02x\n", 1153 phba->fcf.current_rec.fcf_indx, 1154 phba->fcf.current_rec.switch_name[0], 1155 phba->fcf.current_rec.switch_name[1], 1156 phba->fcf.current_rec.switch_name[2], 1157 phba->fcf.current_rec.switch_name[3], 1158 phba->fcf.current_rec.switch_name[4], 1159 phba->fcf.current_rec.switch_name[5], 1160 phba->fcf.current_rec.switch_name[6], 1161 phba->fcf.current_rec.switch_name[7], 1162 phba->fcf.current_rec.fabric_name[0], 1163 phba->fcf.current_rec.fabric_name[1], 1164 phba->fcf.current_rec.fabric_name[2], 1165 phba->fcf.current_rec.fabric_name[3], 1166 phba->fcf.current_rec.fabric_name[4], 1167 phba->fcf.current_rec.fabric_name[5], 1168 phba->fcf.current_rec.fabric_name[6], 1169 phba->fcf.current_rec.fabric_name[7]); 1170 1171 lpfc_nlp_put(ndlp); 1172 spin_lock_irq(&phba->hbalock); 1173 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 1174 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); 1175 spin_unlock_irq(&phba->hbalock); 1176 phba->fcf.fcf_redisc_attempted = 0; /* reset */ 1177 goto out; 1178 } 1179 if (!rc) { 1180 /* Mark the FCF discovery process done */ 1181 if (phba->hba_flag & HBA_FIP_SUPPORT) 1182 lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP | 1183 LOG_ELS, 1184 "2769 FLOGI to FCF (x%x) " 1185 "completed successfully\n", 1186 phba->fcf.current_rec.fcf_indx); 1187 spin_lock_irq(&phba->hbalock); 1188 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 1189 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); 1190 spin_unlock_irq(&phba->hbalock); 1191 phba->fcf.fcf_redisc_attempted = 0; /* reset */ 1192 goto out; 1193 } 1194 } else if (vport->port_state > LPFC_FLOGI && 1195 vport->fc_flag & FC_PT2PT) { 1196 /* 1197 * In a p2p topology, it is possible that discovery has 1198 * already progressed, and this completion can be ignored. 1199 * Recheck the indicated topology. 1200 */ 1201 if (!sp->cmn.fPort) 1202 goto out; 1203 } 1204 1205 flogifail: 1206 spin_lock_irq(&phba->hbalock); 1207 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 1208 spin_unlock_irq(&phba->hbalock); 1209 1210 if (!lpfc_error_lost_link(ulp_status, ulp_word4)) { 1211 /* FLOGI failed, so just use loop map to make discovery list */ 1212 lpfc_disc_list_loopmap(vport); 1213 1214 /* Start discovery */ 1215 lpfc_disc_start(vport); 1216 } else if (((ulp_status != IOSTAT_LOCAL_REJECT) || 1217 (((ulp_word4 & IOERR_PARAM_MASK) != 1218 IOERR_SLI_ABORTED) && 1219 ((ulp_word4 & IOERR_PARAM_MASK) != 1220 IOERR_SLI_DOWN))) && 1221 (phba->link_state != LPFC_CLEAR_LA)) { 1222 /* If FLOGI failed enable link interrupt. */ 1223 lpfc_issue_clear_la(phba, vport); 1224 } 1225 out: 1226 if (!flogi_in_retry) 1227 phba->hba_flag &= ~HBA_FLOGI_OUTSTANDING; 1228 1229 lpfc_els_free_iocb(phba, cmdiocb); 1230 lpfc_nlp_put(ndlp); 1231 } 1232 1233 /** 1234 * lpfc_cmpl_els_link_down - Completion callback function for ELS command 1235 * aborted during a link down 1236 * @phba: pointer to lpfc hba data structure. 1237 * @cmdiocb: pointer to lpfc command iocb data structure. 1238 * @rspiocb: pointer to lpfc response iocb data structure. 1239 * 1240 */ 1241 static void 1242 lpfc_cmpl_els_link_down(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 1243 struct lpfc_iocbq *rspiocb) 1244 { 1245 uint32_t *pcmd; 1246 uint32_t cmd; 1247 u32 ulp_status, ulp_word4; 1248 1249 pcmd = (uint32_t *)cmdiocb->cmd_dmabuf->virt; 1250 cmd = *pcmd; 1251 1252 ulp_status = get_job_ulpstatus(phba, rspiocb); 1253 ulp_word4 = get_job_word4(phba, rspiocb); 1254 1255 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 1256 "6445 ELS completes after LINK_DOWN: " 1257 " Status %x/%x cmd x%x flg x%x\n", 1258 ulp_status, ulp_word4, cmd, 1259 cmdiocb->cmd_flag); 1260 1261 if (cmdiocb->cmd_flag & LPFC_IO_FABRIC) { 1262 cmdiocb->cmd_flag &= ~LPFC_IO_FABRIC; 1263 atomic_dec(&phba->fabric_iocb_count); 1264 } 1265 lpfc_els_free_iocb(phba, cmdiocb); 1266 } 1267 1268 /** 1269 * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport 1270 * @vport: pointer to a host virtual N_Port data structure. 1271 * @ndlp: pointer to a node-list data structure. 1272 * @retry: number of retries to the command IOCB. 1273 * 1274 * This routine issues a Fabric Login (FLOGI) Request ELS command 1275 * for a @vport. The initiator service parameters are put into the payload 1276 * of the FLOGI Request IOCB and the top-level callback function pointer 1277 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback 1278 * function field. The lpfc_issue_fabric_iocb routine is invoked to send 1279 * out FLOGI ELS command with one outstanding fabric IOCB at a time. 1280 * 1281 * Note that the ndlp reference count will be incremented by 1 for holding the 1282 * ndlp and the reference to ndlp will be stored into the ndlp field of 1283 * the IOCB for the completion callback function to the FLOGI ELS command. 1284 * 1285 * Return code 1286 * 0 - successfully issued flogi iocb for @vport 1287 * 1 - failed to issue flogi iocb for @vport 1288 **/ 1289 static int 1290 lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1291 uint8_t retry) 1292 { 1293 struct lpfc_hba *phba = vport->phba; 1294 struct serv_parm *sp; 1295 union lpfc_wqe128 *wqe = NULL; 1296 IOCB_t *icmd = NULL; 1297 struct lpfc_iocbq *elsiocb; 1298 struct lpfc_iocbq defer_flogi_acc; 1299 u8 *pcmd, ct; 1300 uint16_t cmdsize; 1301 uint32_t tmo, did; 1302 int rc; 1303 1304 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); 1305 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 1306 ndlp->nlp_DID, ELS_CMD_FLOGI); 1307 1308 if (!elsiocb) 1309 return 1; 1310 1311 wqe = &elsiocb->wqe; 1312 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 1313 icmd = &elsiocb->iocb; 1314 1315 /* For FLOGI request, remainder of payload is service parameters */ 1316 *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI; 1317 pcmd += sizeof(uint32_t); 1318 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); 1319 sp = (struct serv_parm *) pcmd; 1320 1321 /* Setup CSPs accordingly for Fabric */ 1322 sp->cmn.e_d_tov = 0; 1323 sp->cmn.w2.r_a_tov = 0; 1324 sp->cmn.virtual_fabric_support = 0; 1325 sp->cls1.classValid = 0; 1326 if (sp->cmn.fcphLow < FC_PH3) 1327 sp->cmn.fcphLow = FC_PH3; 1328 if (sp->cmn.fcphHigh < FC_PH3) 1329 sp->cmn.fcphHigh = FC_PH3; 1330 1331 /* Determine if switch supports priority tagging */ 1332 if (phba->cfg_vmid_priority_tagging) { 1333 sp->cmn.priority_tagging = 1; 1334 /* lpfc_vmid_host_uuid is combination of wwpn and wwnn */ 1335 if (uuid_is_null((uuid_t *)vport->lpfc_vmid_host_uuid)) { 1336 memcpy(vport->lpfc_vmid_host_uuid, phba->wwpn, 1337 sizeof(phba->wwpn)); 1338 memcpy(&vport->lpfc_vmid_host_uuid[8], phba->wwnn, 1339 sizeof(phba->wwnn)); 1340 } 1341 } 1342 1343 if (phba->sli_rev == LPFC_SLI_REV4) { 1344 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 1345 LPFC_SLI_INTF_IF_TYPE_0) { 1346 /* FLOGI needs to be 3 for WQE FCFI */ 1347 ct = SLI4_CT_FCFI; 1348 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct); 1349 1350 /* Set the fcfi to the fcfi we registered with */ 1351 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com, 1352 phba->fcf.fcfi); 1353 } 1354 1355 /* Can't do SLI4 class2 without support sequence coalescing */ 1356 sp->cls2.classValid = 0; 1357 sp->cls2.seqDelivery = 0; 1358 } else { 1359 /* Historical, setting sequential-delivery bit for SLI3 */ 1360 sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0; 1361 sp->cls3.seqDelivery = (sp->cls3.classValid) ? 1 : 0; 1362 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { 1363 sp->cmn.request_multiple_Nport = 1; 1364 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */ 1365 icmd->ulpCt_h = 1; 1366 icmd->ulpCt_l = 0; 1367 } else { 1368 sp->cmn.request_multiple_Nport = 0; 1369 } 1370 1371 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) { 1372 icmd->un.elsreq64.myID = 0; 1373 icmd->un.elsreq64.fl = 1; 1374 } 1375 } 1376 1377 tmo = phba->fc_ratov; 1378 phba->fc_ratov = LPFC_DISC_FLOGI_TMO; 1379 lpfc_set_disctmo(vport); 1380 phba->fc_ratov = tmo; 1381 1382 phba->fc_stat.elsXmitFLOGI++; 1383 elsiocb->cmd_cmpl = lpfc_cmpl_els_flogi; 1384 1385 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1386 "Issue FLOGI: opt:x%x", 1387 phba->sli3_options, 0, 0); 1388 1389 elsiocb->ndlp = lpfc_nlp_get(ndlp); 1390 if (!elsiocb->ndlp) { 1391 lpfc_els_free_iocb(phba, elsiocb); 1392 return 1; 1393 } 1394 1395 /* Avoid race with FLOGI completion and hba_flags. */ 1396 phba->hba_flag |= (HBA_FLOGI_ISSUED | HBA_FLOGI_OUTSTANDING); 1397 1398 rc = lpfc_issue_fabric_iocb(phba, elsiocb); 1399 if (rc == IOCB_ERROR) { 1400 phba->hba_flag &= ~(HBA_FLOGI_ISSUED | HBA_FLOGI_OUTSTANDING); 1401 lpfc_els_free_iocb(phba, elsiocb); 1402 lpfc_nlp_put(ndlp); 1403 return 1; 1404 } 1405 1406 /* Clear external loopback plug detected flag */ 1407 phba->link_flag &= ~LS_EXTERNAL_LOOPBACK; 1408 1409 /* Check for a deferred FLOGI ACC condition */ 1410 if (phba->defer_flogi_acc_flag) { 1411 /* lookup ndlp for received FLOGI */ 1412 ndlp = lpfc_findnode_did(vport, 0); 1413 if (!ndlp) 1414 return 0; 1415 1416 did = vport->fc_myDID; 1417 vport->fc_myDID = Fabric_DID; 1418 1419 memset(&defer_flogi_acc, 0, sizeof(struct lpfc_iocbq)); 1420 1421 if (phba->sli_rev == LPFC_SLI_REV4) { 1422 bf_set(wqe_ctxt_tag, 1423 &defer_flogi_acc.wqe.xmit_els_rsp.wqe_com, 1424 phba->defer_flogi_acc_rx_id); 1425 bf_set(wqe_rcvoxid, 1426 &defer_flogi_acc.wqe.xmit_els_rsp.wqe_com, 1427 phba->defer_flogi_acc_ox_id); 1428 } else { 1429 icmd = &defer_flogi_acc.iocb; 1430 icmd->ulpContext = phba->defer_flogi_acc_rx_id; 1431 icmd->unsli3.rcvsli3.ox_id = 1432 phba->defer_flogi_acc_ox_id; 1433 } 1434 1435 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1436 "3354 Xmit deferred FLOGI ACC: rx_id: x%x," 1437 " ox_id: x%x, hba_flag x%x\n", 1438 phba->defer_flogi_acc_rx_id, 1439 phba->defer_flogi_acc_ox_id, phba->hba_flag); 1440 1441 /* Send deferred FLOGI ACC */ 1442 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, &defer_flogi_acc, 1443 ndlp, NULL); 1444 1445 phba->defer_flogi_acc_flag = false; 1446 vport->fc_myDID = did; 1447 1448 /* Decrement ndlp reference count to indicate the node can be 1449 * released when other references are removed. 1450 */ 1451 lpfc_nlp_put(ndlp); 1452 } 1453 1454 return 0; 1455 } 1456 1457 /** 1458 * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs 1459 * @phba: pointer to lpfc hba data structure. 1460 * 1461 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs 1462 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq 1463 * list and issues an abort IOCB commond on each outstanding IOCB that 1464 * contains a active Fabric_DID ndlp. Note that this function is to issue 1465 * the abort IOCB command on all the outstanding IOCBs, thus when this 1466 * function returns, it does not guarantee all the IOCBs are actually aborted. 1467 * 1468 * Return code 1469 * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0) 1470 **/ 1471 int 1472 lpfc_els_abort_flogi(struct lpfc_hba *phba) 1473 { 1474 struct lpfc_sli_ring *pring; 1475 struct lpfc_iocbq *iocb, *next_iocb; 1476 struct lpfc_nodelist *ndlp; 1477 u32 ulp_command; 1478 1479 /* Abort outstanding I/O on NPort <nlp_DID> */ 1480 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, 1481 "0201 Abort outstanding I/O on NPort x%x\n", 1482 Fabric_DID); 1483 1484 pring = lpfc_phba_elsring(phba); 1485 if (unlikely(!pring)) 1486 return -EIO; 1487 1488 /* 1489 * Check the txcmplq for an iocb that matches the nport the driver is 1490 * searching for. 1491 */ 1492 spin_lock_irq(&phba->hbalock); 1493 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 1494 ulp_command = get_job_cmnd(phba, iocb); 1495 if (ulp_command == CMD_ELS_REQUEST64_CR) { 1496 ndlp = iocb->ndlp; 1497 if (ndlp && ndlp->nlp_DID == Fabric_DID) { 1498 if ((phba->pport->fc_flag & FC_PT2PT) && 1499 !(phba->pport->fc_flag & FC_PT2PT_PLOGI)) 1500 iocb->fabric_cmd_cmpl = 1501 lpfc_ignore_els_cmpl; 1502 lpfc_sli_issue_abort_iotag(phba, pring, iocb, 1503 NULL); 1504 } 1505 } 1506 } 1507 /* Make sure HBA is alive */ 1508 lpfc_issue_hb_tmo(phba); 1509 1510 spin_unlock_irq(&phba->hbalock); 1511 1512 return 0; 1513 } 1514 1515 /** 1516 * lpfc_initial_flogi - Issue an initial fabric login for a vport 1517 * @vport: pointer to a host virtual N_Port data structure. 1518 * 1519 * This routine issues an initial Fabric Login (FLOGI) for the @vport 1520 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from 1521 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and 1522 * put it into the @vport's ndlp list. If an inactive ndlp found on the list, 1523 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine 1524 * is then invoked with the @vport and the ndlp to perform the FLOGI for the 1525 * @vport. 1526 * 1527 * Return code 1528 * 0 - failed to issue initial flogi for @vport 1529 * 1 - successfully issued initial flogi for @vport 1530 **/ 1531 int 1532 lpfc_initial_flogi(struct lpfc_vport *vport) 1533 { 1534 struct lpfc_nodelist *ndlp; 1535 1536 vport->port_state = LPFC_FLOGI; 1537 lpfc_set_disctmo(vport); 1538 1539 /* First look for the Fabric ndlp */ 1540 ndlp = lpfc_findnode_did(vport, Fabric_DID); 1541 if (!ndlp) { 1542 /* Cannot find existing Fabric ndlp, so allocate a new one */ 1543 ndlp = lpfc_nlp_init(vport, Fabric_DID); 1544 if (!ndlp) 1545 return 0; 1546 /* Set the node type */ 1547 ndlp->nlp_type |= NLP_FABRIC; 1548 1549 /* Put ndlp onto node list */ 1550 lpfc_enqueue_node(vport, ndlp); 1551 } 1552 1553 /* Reset the Fabric flag, topology change may have happened */ 1554 vport->fc_flag &= ~FC_FABRIC; 1555 if (lpfc_issue_els_flogi(vport, ndlp, 0)) { 1556 /* A node reference should be retained while registered with a 1557 * transport or dev-loss-evt work is pending. 1558 * Otherwise, decrement node reference to trigger release. 1559 */ 1560 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) && 1561 !(ndlp->nlp_flag & NLP_IN_DEV_LOSS)) 1562 lpfc_nlp_put(ndlp); 1563 return 0; 1564 } 1565 return 1; 1566 } 1567 1568 /** 1569 * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport 1570 * @vport: pointer to a host virtual N_Port data structure. 1571 * 1572 * This routine issues an initial Fabric Discover (FDISC) for the @vport 1573 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from 1574 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and 1575 * put it into the @vport's ndlp list. If an inactive ndlp found on the list, 1576 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine 1577 * is then invoked with the @vport and the ndlp to perform the FDISC for the 1578 * @vport. 1579 * 1580 * Return code 1581 * 0 - failed to issue initial fdisc for @vport 1582 * 1 - successfully issued initial fdisc for @vport 1583 **/ 1584 int 1585 lpfc_initial_fdisc(struct lpfc_vport *vport) 1586 { 1587 struct lpfc_nodelist *ndlp; 1588 1589 /* First look for the Fabric ndlp */ 1590 ndlp = lpfc_findnode_did(vport, Fabric_DID); 1591 if (!ndlp) { 1592 /* Cannot find existing Fabric ndlp, so allocate a new one */ 1593 ndlp = lpfc_nlp_init(vport, Fabric_DID); 1594 if (!ndlp) 1595 return 0; 1596 1597 /* NPIV is only supported in Fabrics. */ 1598 ndlp->nlp_type |= NLP_FABRIC; 1599 1600 /* Put ndlp onto node list */ 1601 lpfc_enqueue_node(vport, ndlp); 1602 } 1603 1604 if (lpfc_issue_els_fdisc(vport, ndlp, 0)) { 1605 /* A node reference should be retained while registered with a 1606 * transport or dev-loss-evt work is pending. 1607 * Otherwise, decrement node reference to trigger release. 1608 */ 1609 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) && 1610 !(ndlp->nlp_flag & NLP_IN_DEV_LOSS)) 1611 lpfc_nlp_put(ndlp); 1612 return 0; 1613 } 1614 return 1; 1615 } 1616 1617 /** 1618 * lpfc_more_plogi - Check and issue remaining plogis for a vport 1619 * @vport: pointer to a host virtual N_Port data structure. 1620 * 1621 * This routine checks whether there are more remaining Port Logins 1622 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine 1623 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes 1624 * to issue ELS PLOGIs up to the configured discover threads with the 1625 * @vport (@vport->cfg_discovery_threads). The function also decrement 1626 * the @vport's num_disc_node by 1 if it is not already 0. 1627 **/ 1628 void 1629 lpfc_more_plogi(struct lpfc_vport *vport) 1630 { 1631 if (vport->num_disc_nodes) 1632 vport->num_disc_nodes--; 1633 1634 /* Continue discovery with <num_disc_nodes> PLOGIs to go */ 1635 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1636 "0232 Continue discovery with %d PLOGIs to go " 1637 "Data: x%x x%x x%x\n", 1638 vport->num_disc_nodes, vport->fc_plogi_cnt, 1639 vport->fc_flag, vport->port_state); 1640 /* Check to see if there are more PLOGIs to be sent */ 1641 if (vport->fc_flag & FC_NLP_MORE) 1642 /* go thru NPR nodes and issue any remaining ELS PLOGIs */ 1643 lpfc_els_disc_plogi(vport); 1644 1645 return; 1646 } 1647 1648 /** 1649 * lpfc_plogi_confirm_nport - Confirm plogi wwpn matches stored ndlp 1650 * @phba: pointer to lpfc hba data structure. 1651 * @prsp: pointer to response IOCB payload. 1652 * @ndlp: pointer to a node-list data structure. 1653 * 1654 * This routine checks and indicates whether the WWPN of an N_Port, retrieved 1655 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt. 1656 * The following cases are considered N_Port confirmed: 1657 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches 1658 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but 1659 * it does not have WWPN assigned either. If the WWPN is confirmed, the 1660 * pointer to the @ndlp will be returned. If the WWPN is not confirmed: 1661 * 1) if there is a node on vport list other than the @ndlp with the same 1662 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked 1663 * on that node to release the RPI associated with the node; 2) if there is 1664 * no node found on vport list with the same WWPN of the N_Port PLOGI logged 1665 * into, a new node shall be allocated (or activated). In either case, the 1666 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall 1667 * be released and the new_ndlp shall be put on to the vport node list and 1668 * its pointer returned as the confirmed node. 1669 * 1670 * Note that before the @ndlp got "released", the keepDID from not-matching 1671 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID 1672 * of the @ndlp. This is because the release of @ndlp is actually to put it 1673 * into an inactive state on the vport node list and the vport node list 1674 * management algorithm does not allow two node with a same DID. 1675 * 1676 * Return code 1677 * pointer to the PLOGI N_Port @ndlp 1678 **/ 1679 static struct lpfc_nodelist * 1680 lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, 1681 struct lpfc_nodelist *ndlp) 1682 { 1683 struct lpfc_vport *vport = ndlp->vport; 1684 struct lpfc_nodelist *new_ndlp; 1685 struct serv_parm *sp; 1686 uint8_t name[sizeof(struct lpfc_name)]; 1687 uint32_t keepDID = 0, keep_nlp_flag = 0; 1688 uint32_t keep_new_nlp_flag = 0; 1689 uint16_t keep_nlp_state; 1690 u32 keep_nlp_fc4_type = 0; 1691 struct lpfc_nvme_rport *keep_nrport = NULL; 1692 unsigned long *active_rrqs_xri_bitmap = NULL; 1693 1694 /* Fabric nodes can have the same WWPN so we don't bother searching 1695 * by WWPN. Just return the ndlp that was given to us. 1696 */ 1697 if (ndlp->nlp_type & NLP_FABRIC) 1698 return ndlp; 1699 1700 sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t)); 1701 memset(name, 0, sizeof(struct lpfc_name)); 1702 1703 /* Now we find out if the NPort we are logging into, matches the WWPN 1704 * we have for that ndlp. If not, we have some work to do. 1705 */ 1706 new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName); 1707 1708 /* return immediately if the WWPN matches ndlp */ 1709 if (!new_ndlp || (new_ndlp == ndlp)) 1710 return ndlp; 1711 1712 /* 1713 * Unregister from backend if not done yet. Could have been skipped 1714 * due to ADISC 1715 */ 1716 lpfc_nlp_unreg_node(vport, new_ndlp); 1717 1718 if (phba->sli_rev == LPFC_SLI_REV4) { 1719 active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool, 1720 GFP_KERNEL); 1721 if (active_rrqs_xri_bitmap) 1722 memset(active_rrqs_xri_bitmap, 0, 1723 phba->cfg_rrq_xri_bitmap_sz); 1724 } 1725 1726 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE, 1727 "3178 PLOGI confirm: ndlp x%x x%x x%x: " 1728 "new_ndlp x%x x%x x%x\n", 1729 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_fc4_type, 1730 (new_ndlp ? new_ndlp->nlp_DID : 0), 1731 (new_ndlp ? new_ndlp->nlp_flag : 0), 1732 (new_ndlp ? new_ndlp->nlp_fc4_type : 0)); 1733 1734 keepDID = new_ndlp->nlp_DID; 1735 1736 if (phba->sli_rev == LPFC_SLI_REV4 && active_rrqs_xri_bitmap) 1737 memcpy(active_rrqs_xri_bitmap, new_ndlp->active_rrqs_xri_bitmap, 1738 phba->cfg_rrq_xri_bitmap_sz); 1739 1740 /* At this point in this routine, we know new_ndlp will be 1741 * returned. however, any previous GID_FTs that were done 1742 * would have updated nlp_fc4_type in ndlp, so we must ensure 1743 * new_ndlp has the right value. 1744 */ 1745 if (vport->fc_flag & FC_FABRIC) { 1746 keep_nlp_fc4_type = new_ndlp->nlp_fc4_type; 1747 new_ndlp->nlp_fc4_type = ndlp->nlp_fc4_type; 1748 } 1749 1750 lpfc_unreg_rpi(vport, new_ndlp); 1751 new_ndlp->nlp_DID = ndlp->nlp_DID; 1752 new_ndlp->nlp_prev_state = ndlp->nlp_prev_state; 1753 if (phba->sli_rev == LPFC_SLI_REV4) 1754 memcpy(new_ndlp->active_rrqs_xri_bitmap, 1755 ndlp->active_rrqs_xri_bitmap, 1756 phba->cfg_rrq_xri_bitmap_sz); 1757 1758 /* Lock both ndlps */ 1759 spin_lock_irq(&ndlp->lock); 1760 spin_lock_irq(&new_ndlp->lock); 1761 keep_new_nlp_flag = new_ndlp->nlp_flag; 1762 keep_nlp_flag = ndlp->nlp_flag; 1763 new_ndlp->nlp_flag = ndlp->nlp_flag; 1764 1765 /* if new_ndlp had NLP_UNREG_INP set, keep it */ 1766 if (keep_new_nlp_flag & NLP_UNREG_INP) 1767 new_ndlp->nlp_flag |= NLP_UNREG_INP; 1768 else 1769 new_ndlp->nlp_flag &= ~NLP_UNREG_INP; 1770 1771 /* if new_ndlp had NLP_RPI_REGISTERED set, keep it */ 1772 if (keep_new_nlp_flag & NLP_RPI_REGISTERED) 1773 new_ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1774 else 1775 new_ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 1776 1777 /* 1778 * Retain the DROPPED flag. This will take care of the init 1779 * refcount when affecting the state change 1780 */ 1781 if (keep_new_nlp_flag & NLP_DROPPED) 1782 new_ndlp->nlp_flag |= NLP_DROPPED; 1783 else 1784 new_ndlp->nlp_flag &= ~NLP_DROPPED; 1785 1786 ndlp->nlp_flag = keep_new_nlp_flag; 1787 1788 /* if ndlp had NLP_UNREG_INP set, keep it */ 1789 if (keep_nlp_flag & NLP_UNREG_INP) 1790 ndlp->nlp_flag |= NLP_UNREG_INP; 1791 else 1792 ndlp->nlp_flag &= ~NLP_UNREG_INP; 1793 1794 /* if ndlp had NLP_RPI_REGISTERED set, keep it */ 1795 if (keep_nlp_flag & NLP_RPI_REGISTERED) 1796 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1797 else 1798 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 1799 1800 /* 1801 * Retain the DROPPED flag. This will take care of the init 1802 * refcount when affecting the state change 1803 */ 1804 if (keep_nlp_flag & NLP_DROPPED) 1805 ndlp->nlp_flag |= NLP_DROPPED; 1806 else 1807 ndlp->nlp_flag &= ~NLP_DROPPED; 1808 1809 spin_unlock_irq(&new_ndlp->lock); 1810 spin_unlock_irq(&ndlp->lock); 1811 1812 /* Set nlp_states accordingly */ 1813 keep_nlp_state = new_ndlp->nlp_state; 1814 lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); 1815 1816 /* interchange the nvme remoteport structs */ 1817 keep_nrport = new_ndlp->nrport; 1818 new_ndlp->nrport = ndlp->nrport; 1819 1820 /* Move this back to NPR state */ 1821 if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) { 1822 /* The ndlp doesn't have a portname yet, but does have an 1823 * NPort ID. The new_ndlp portname matches the Rport's 1824 * portname. Reinstantiate the new_ndlp and reset the ndlp. 1825 */ 1826 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1827 "3179 PLOGI confirm NEW: %x %x\n", 1828 new_ndlp->nlp_DID, keepDID); 1829 1830 /* Two ndlps cannot have the same did on the nodelist. 1831 * The KeepDID and keep_nlp_fc4_type need to be swapped 1832 * because ndlp is inflight with no WWPN. 1833 */ 1834 ndlp->nlp_DID = keepDID; 1835 ndlp->nlp_fc4_type = keep_nlp_fc4_type; 1836 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state); 1837 if (phba->sli_rev == LPFC_SLI_REV4 && 1838 active_rrqs_xri_bitmap) 1839 memcpy(ndlp->active_rrqs_xri_bitmap, 1840 active_rrqs_xri_bitmap, 1841 phba->cfg_rrq_xri_bitmap_sz); 1842 1843 } else { 1844 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1845 "3180 PLOGI confirm SWAP: %x %x\n", 1846 new_ndlp->nlp_DID, keepDID); 1847 1848 lpfc_unreg_rpi(vport, ndlp); 1849 1850 /* The ndlp and new_ndlp both have WWPNs but are swapping 1851 * NPort Ids and attributes. 1852 */ 1853 ndlp->nlp_DID = keepDID; 1854 ndlp->nlp_fc4_type = keep_nlp_fc4_type; 1855 1856 if (phba->sli_rev == LPFC_SLI_REV4 && 1857 active_rrqs_xri_bitmap) 1858 memcpy(ndlp->active_rrqs_xri_bitmap, 1859 active_rrqs_xri_bitmap, 1860 phba->cfg_rrq_xri_bitmap_sz); 1861 1862 /* Since we are switching over to the new_ndlp, 1863 * reset the old ndlp state 1864 */ 1865 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || 1866 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) 1867 keep_nlp_state = NLP_STE_NPR_NODE; 1868 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state); 1869 ndlp->nrport = keep_nrport; 1870 } 1871 1872 /* 1873 * If ndlp is not associated with any rport we can drop it here else 1874 * let dev_loss_tmo_callbk trigger DEVICE_RM event 1875 */ 1876 if (!ndlp->rport && (ndlp->nlp_state == NLP_STE_NPR_NODE)) 1877 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 1878 1879 if (phba->sli_rev == LPFC_SLI_REV4 && 1880 active_rrqs_xri_bitmap) 1881 mempool_free(active_rrqs_xri_bitmap, 1882 phba->active_rrq_pool); 1883 1884 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE, 1885 "3173 PLOGI confirm exit: new_ndlp x%x x%x x%x\n", 1886 new_ndlp->nlp_DID, new_ndlp->nlp_flag, 1887 new_ndlp->nlp_fc4_type); 1888 1889 return new_ndlp; 1890 } 1891 1892 /** 1893 * lpfc_end_rscn - Check and handle more rscn for a vport 1894 * @vport: pointer to a host virtual N_Port data structure. 1895 * 1896 * This routine checks whether more Registration State Change 1897 * Notifications (RSCNs) came in while the discovery state machine was in 1898 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be 1899 * invoked to handle the additional RSCNs for the @vport. Otherwise, the 1900 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of 1901 * handling the RSCNs. 1902 **/ 1903 void 1904 lpfc_end_rscn(struct lpfc_vport *vport) 1905 { 1906 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1907 1908 if (vport->fc_flag & FC_RSCN_MODE) { 1909 /* 1910 * Check to see if more RSCNs came in while we were 1911 * processing this one. 1912 */ 1913 if (vport->fc_rscn_id_cnt || 1914 (vport->fc_flag & FC_RSCN_DISCOVERY) != 0) 1915 lpfc_els_handle_rscn(vport); 1916 else { 1917 spin_lock_irq(shost->host_lock); 1918 vport->fc_flag &= ~FC_RSCN_MODE; 1919 spin_unlock_irq(shost->host_lock); 1920 } 1921 } 1922 } 1923 1924 /** 1925 * lpfc_cmpl_els_rrq - Completion handled for els RRQs. 1926 * @phba: pointer to lpfc hba data structure. 1927 * @cmdiocb: pointer to lpfc command iocb data structure. 1928 * @rspiocb: pointer to lpfc response iocb data structure. 1929 * 1930 * This routine will call the clear rrq function to free the rrq and 1931 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not 1932 * exist then the clear_rrq is still called because the rrq needs to 1933 * be freed. 1934 **/ 1935 1936 static void 1937 lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 1938 struct lpfc_iocbq *rspiocb) 1939 { 1940 struct lpfc_vport *vport = cmdiocb->vport; 1941 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 1942 struct lpfc_node_rrq *rrq; 1943 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 1944 u32 ulp_word4 = get_job_word4(phba, rspiocb); 1945 1946 /* we pass cmdiocb to state machine which needs rspiocb as well */ 1947 rrq = cmdiocb->context_un.rrq; 1948 cmdiocb->rsp_iocb = rspiocb; 1949 1950 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1951 "RRQ cmpl: status:x%x/x%x did:x%x", 1952 ulp_status, ulp_word4, 1953 get_job_els_rsp64_did(phba, cmdiocb)); 1954 1955 1956 /* rrq completes to NPort <nlp_DID> */ 1957 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1958 "2880 RRQ completes to DID x%x " 1959 "Data: x%x x%x x%x x%x x%x\n", 1960 ndlp->nlp_DID, ulp_status, ulp_word4, 1961 get_wqe_tmo(cmdiocb), rrq->xritag, rrq->rxid); 1962 1963 if (ulp_status) { 1964 /* Check for retry */ 1965 /* RRQ failed Don't print the vport to vport rjts */ 1966 if (ulp_status != IOSTAT_LS_RJT || 1967 (((ulp_word4) >> 16 != LSRJT_INVALID_CMD) && 1968 ((ulp_word4) >> 16 != LSRJT_UNABLE_TPC)) || 1969 (phba)->pport->cfg_log_verbose & LOG_ELS) 1970 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1971 "2881 RRQ failure DID:%06X Status:" 1972 "x%x/x%x\n", 1973 ndlp->nlp_DID, ulp_status, 1974 ulp_word4); 1975 } 1976 1977 lpfc_clr_rrq_active(phba, rrq->xritag, rrq); 1978 lpfc_els_free_iocb(phba, cmdiocb); 1979 lpfc_nlp_put(ndlp); 1980 return; 1981 } 1982 /** 1983 * lpfc_cmpl_els_plogi - Completion callback function for plogi 1984 * @phba: pointer to lpfc hba data structure. 1985 * @cmdiocb: pointer to lpfc command iocb data structure. 1986 * @rspiocb: pointer to lpfc response iocb data structure. 1987 * 1988 * This routine is the completion callback function for issuing the Port 1989 * Login (PLOGI) command. For PLOGI completion, there must be an active 1990 * ndlp on the vport node list that matches the remote node ID from the 1991 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply 1992 * ignored and command IOCB released. The PLOGI response IOCB status is 1993 * checked for error conditions. If there is error status reported, PLOGI 1994 * retry shall be attempted by invoking the lpfc_els_retry() routine. 1995 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on 1996 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine 1997 * (DSM) is set for this PLOGI completion. Finally, it checks whether 1998 * there are additional N_Port nodes with the vport that need to perform 1999 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition 2000 * PLOGIs. 2001 **/ 2002 static void 2003 lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2004 struct lpfc_iocbq *rspiocb) 2005 { 2006 struct lpfc_vport *vport = cmdiocb->vport; 2007 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2008 IOCB_t *irsp; 2009 struct lpfc_nodelist *ndlp, *free_ndlp; 2010 struct lpfc_dmabuf *prsp; 2011 int disc; 2012 struct serv_parm *sp = NULL; 2013 u32 ulp_status, ulp_word4, did, iotag; 2014 bool release_node = false; 2015 2016 /* we pass cmdiocb to state machine which needs rspiocb as well */ 2017 cmdiocb->rsp_iocb = rspiocb; 2018 2019 ulp_status = get_job_ulpstatus(phba, rspiocb); 2020 ulp_word4 = get_job_word4(phba, rspiocb); 2021 did = get_job_els_rsp64_did(phba, cmdiocb); 2022 2023 if (phba->sli_rev == LPFC_SLI_REV4) { 2024 iotag = get_wqe_reqtag(cmdiocb); 2025 } else { 2026 irsp = &rspiocb->iocb; 2027 iotag = irsp->ulpIoTag; 2028 } 2029 2030 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2031 "PLOGI cmpl: status:x%x/x%x did:x%x", 2032 ulp_status, ulp_word4, did); 2033 2034 ndlp = lpfc_findnode_did(vport, did); 2035 if (!ndlp) { 2036 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 2037 "0136 PLOGI completes to NPort x%x " 2038 "with no ndlp. Data: x%x x%x x%x\n", 2039 did, ulp_status, ulp_word4, iotag); 2040 goto out_freeiocb; 2041 } 2042 2043 /* Since ndlp can be freed in the disc state machine, note if this node 2044 * is being used during discovery. 2045 */ 2046 spin_lock_irq(&ndlp->lock); 2047 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); 2048 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 2049 spin_unlock_irq(&ndlp->lock); 2050 2051 /* PLOGI completes to NPort <nlp_DID> */ 2052 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 2053 "0102 PLOGI completes to NPort x%06x " 2054 "Data: x%x x%x x%x x%x x%x\n", 2055 ndlp->nlp_DID, ndlp->nlp_fc4_type, 2056 ulp_status, ulp_word4, 2057 disc, vport->num_disc_nodes); 2058 2059 /* Check to see if link went down during discovery */ 2060 if (lpfc_els_chk_latt(vport)) { 2061 spin_lock_irq(&ndlp->lock); 2062 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 2063 spin_unlock_irq(&ndlp->lock); 2064 goto out; 2065 } 2066 2067 if (ulp_status) { 2068 /* Check for retry */ 2069 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { 2070 /* ELS command is being retried */ 2071 if (disc) { 2072 spin_lock_irq(&ndlp->lock); 2073 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 2074 spin_unlock_irq(&ndlp->lock); 2075 } 2076 goto out; 2077 } 2078 /* PLOGI failed Don't print the vport to vport rjts */ 2079 if (ulp_status != IOSTAT_LS_RJT || 2080 (((ulp_word4) >> 16 != LSRJT_INVALID_CMD) && 2081 ((ulp_word4) >> 16 != LSRJT_UNABLE_TPC)) || 2082 (phba)->pport->cfg_log_verbose & LOG_ELS) 2083 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 2084 "2753 PLOGI failure DID:%06X " 2085 "Status:x%x/x%x\n", 2086 ndlp->nlp_DID, ulp_status, 2087 ulp_word4); 2088 2089 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ 2090 if (!lpfc_error_lost_link(ulp_status, ulp_word4)) 2091 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2092 NLP_EVT_CMPL_PLOGI); 2093 2094 /* If a PLOGI collision occurred, the node needs to continue 2095 * with the reglogin process. 2096 */ 2097 spin_lock_irq(&ndlp->lock); 2098 if ((ndlp->nlp_flag & (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI)) && 2099 ndlp->nlp_state == NLP_STE_REG_LOGIN_ISSUE) { 2100 spin_unlock_irq(&ndlp->lock); 2101 goto out; 2102 } 2103 2104 /* No PLOGI collision and the node is not registered with the 2105 * scsi or nvme transport. It is no longer an active node. Just 2106 * start the device remove process. 2107 */ 2108 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { 2109 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 2110 if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS)) 2111 release_node = true; 2112 } 2113 spin_unlock_irq(&ndlp->lock); 2114 2115 if (release_node) 2116 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2117 NLP_EVT_DEVICE_RM); 2118 } else { 2119 /* Good status, call state machine */ 2120 prsp = list_entry(cmdiocb->cmd_dmabuf->list.next, 2121 struct lpfc_dmabuf, list); 2122 ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp); 2123 2124 sp = (struct serv_parm *)((u8 *)prsp->virt + 2125 sizeof(u32)); 2126 2127 ndlp->vmid_support = 0; 2128 if ((phba->cfg_vmid_app_header && sp->cmn.app_hdr_support) || 2129 (phba->cfg_vmid_priority_tagging && 2130 sp->cmn.priority_tagging)) { 2131 lpfc_printf_log(phba, KERN_DEBUG, LOG_ELS, 2132 "4018 app_hdr_support %d tagging %d DID x%x\n", 2133 sp->cmn.app_hdr_support, 2134 sp->cmn.priority_tagging, 2135 ndlp->nlp_DID); 2136 /* if the dest port supports VMID, mark it in ndlp */ 2137 ndlp->vmid_support = 1; 2138 } 2139 2140 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2141 NLP_EVT_CMPL_PLOGI); 2142 } 2143 2144 if (disc && vport->num_disc_nodes) { 2145 /* Check to see if there are more PLOGIs to be sent */ 2146 lpfc_more_plogi(vport); 2147 2148 if (vport->num_disc_nodes == 0) { 2149 spin_lock_irq(shost->host_lock); 2150 vport->fc_flag &= ~FC_NDISC_ACTIVE; 2151 spin_unlock_irq(shost->host_lock); 2152 2153 lpfc_can_disctmo(vport); 2154 lpfc_end_rscn(vport); 2155 } 2156 } 2157 2158 out: 2159 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 2160 "PLOGI Cmpl PUT: did:x%x refcnt %d", 2161 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 2162 2163 out_freeiocb: 2164 /* Release the reference on the original I/O request. */ 2165 free_ndlp = cmdiocb->ndlp; 2166 2167 lpfc_els_free_iocb(phba, cmdiocb); 2168 lpfc_nlp_put(free_ndlp); 2169 return; 2170 } 2171 2172 /** 2173 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport 2174 * @vport: pointer to a host virtual N_Port data structure. 2175 * @did: destination port identifier. 2176 * @retry: number of retries to the command IOCB. 2177 * 2178 * This routine issues a Port Login (PLOGI) command to a remote N_Port 2179 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port, 2180 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list. 2181 * This routine constructs the proper fields of the PLOGI IOCB and invokes 2182 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command. 2183 * 2184 * Note that the ndlp reference count will be incremented by 1 for holding 2185 * the ndlp and the reference to ndlp will be stored into the ndlp field 2186 * of the IOCB for the completion callback function to the PLOGI ELS command. 2187 * 2188 * Return code 2189 * 0 - Successfully issued a plogi for @vport 2190 * 1 - failed to issue a plogi for @vport 2191 **/ 2192 int 2193 lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) 2194 { 2195 struct lpfc_hba *phba = vport->phba; 2196 struct serv_parm *sp; 2197 struct lpfc_nodelist *ndlp; 2198 struct lpfc_iocbq *elsiocb; 2199 uint8_t *pcmd; 2200 uint16_t cmdsize; 2201 int ret; 2202 2203 ndlp = lpfc_findnode_did(vport, did); 2204 if (!ndlp) 2205 return 1; 2206 2207 /* Defer the processing of the issue PLOGI until after the 2208 * outstanding UNREG_RPI mbox command completes, unless we 2209 * are going offline. This logic does not apply for Fabric DIDs 2210 */ 2211 if ((ndlp->nlp_flag & NLP_UNREG_INP) && 2212 ((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 2213 !(vport->fc_flag & FC_OFFLINE_MODE)) { 2214 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2215 "4110 Issue PLOGI x%x deferred " 2216 "on NPort x%x rpi x%x Data: x%px\n", 2217 ndlp->nlp_defer_did, ndlp->nlp_DID, 2218 ndlp->nlp_rpi, ndlp); 2219 2220 /* We can only defer 1st PLOGI */ 2221 if (ndlp->nlp_defer_did == NLP_EVT_NOTHING_PENDING) 2222 ndlp->nlp_defer_did = did; 2223 return 0; 2224 } 2225 2226 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); 2227 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, 2228 ELS_CMD_PLOGI); 2229 if (!elsiocb) 2230 return 1; 2231 2232 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 2233 2234 /* For PLOGI request, remainder of payload is service parameters */ 2235 *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; 2236 pcmd += sizeof(uint32_t); 2237 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); 2238 sp = (struct serv_parm *) pcmd; 2239 2240 /* 2241 * If we are a N-port connected to a Fabric, fix-up paramm's so logins 2242 * to device on remote loops work. 2243 */ 2244 if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP)) 2245 sp->cmn.altBbCredit = 1; 2246 2247 if (sp->cmn.fcphLow < FC_PH_4_3) 2248 sp->cmn.fcphLow = FC_PH_4_3; 2249 2250 if (sp->cmn.fcphHigh < FC_PH3) 2251 sp->cmn.fcphHigh = FC_PH3; 2252 2253 sp->cmn.valid_vendor_ver_level = 0; 2254 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion)); 2255 sp->cmn.bbRcvSizeMsb &= 0xF; 2256 2257 /* Check if the destination port supports VMID */ 2258 ndlp->vmid_support = 0; 2259 if (vport->vmid_priority_tagging) 2260 sp->cmn.priority_tagging = 1; 2261 else if (phba->cfg_vmid_app_header && 2262 bf_get(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags)) 2263 sp->cmn.app_hdr_support = 1; 2264 2265 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2266 "Issue PLOGI: did:x%x", 2267 did, 0, 0); 2268 2269 /* If our firmware supports this feature, convey that 2270 * information to the target using the vendor specific field. 2271 */ 2272 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) { 2273 sp->cmn.valid_vendor_ver_level = 1; 2274 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID); 2275 sp->un.vv.flags = cpu_to_be32(LPFC_VV_SUPPRESS_RSP); 2276 } 2277 2278 phba->fc_stat.elsXmitPLOGI++; 2279 elsiocb->cmd_cmpl = lpfc_cmpl_els_plogi; 2280 2281 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2282 "Issue PLOGI: did:x%x refcnt %d", 2283 did, kref_read(&ndlp->kref), 0); 2284 elsiocb->ndlp = lpfc_nlp_get(ndlp); 2285 if (!elsiocb->ndlp) { 2286 lpfc_els_free_iocb(phba, elsiocb); 2287 return 1; 2288 } 2289 2290 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 2291 if (ret) { 2292 lpfc_els_free_iocb(phba, elsiocb); 2293 lpfc_nlp_put(ndlp); 2294 return 1; 2295 } 2296 2297 return 0; 2298 } 2299 2300 /** 2301 * lpfc_cmpl_els_prli - Completion callback function for prli 2302 * @phba: pointer to lpfc hba data structure. 2303 * @cmdiocb: pointer to lpfc command iocb data structure. 2304 * @rspiocb: pointer to lpfc response iocb data structure. 2305 * 2306 * This routine is the completion callback function for a Process Login 2307 * (PRLI) ELS command. The PRLI response IOCB status is checked for error 2308 * status. If there is error status reported, PRLI retry shall be attempted 2309 * by invoking the lpfc_els_retry() routine. Otherwise, the state 2310 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this 2311 * ndlp to mark the PRLI completion. 2312 **/ 2313 static void 2314 lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2315 struct lpfc_iocbq *rspiocb) 2316 { 2317 struct lpfc_vport *vport = cmdiocb->vport; 2318 struct lpfc_nodelist *ndlp; 2319 char *mode; 2320 u32 loglevel; 2321 u32 ulp_status; 2322 u32 ulp_word4; 2323 bool release_node = false; 2324 2325 /* we pass cmdiocb to state machine which needs rspiocb as well */ 2326 cmdiocb->rsp_iocb = rspiocb; 2327 2328 ndlp = cmdiocb->ndlp; 2329 2330 ulp_status = get_job_ulpstatus(phba, rspiocb); 2331 ulp_word4 = get_job_word4(phba, rspiocb); 2332 2333 spin_lock_irq(&ndlp->lock); 2334 ndlp->nlp_flag &= ~NLP_PRLI_SND; 2335 2336 /* Driver supports multiple FC4 types. Counters matter. */ 2337 vport->fc_prli_sent--; 2338 ndlp->fc4_prli_sent--; 2339 spin_unlock_irq(&ndlp->lock); 2340 2341 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2342 "PRLI cmpl: status:x%x/x%x did:x%x", 2343 ulp_status, ulp_word4, 2344 ndlp->nlp_DID); 2345 2346 /* PRLI completes to NPort <nlp_DID> */ 2347 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 2348 "0103 PRLI completes to NPort x%06x " 2349 "Data: x%x x%x x%x x%x\n", 2350 ndlp->nlp_DID, ulp_status, ulp_word4, 2351 vport->num_disc_nodes, ndlp->fc4_prli_sent); 2352 2353 /* Check to see if link went down during discovery */ 2354 if (lpfc_els_chk_latt(vport)) 2355 goto out; 2356 2357 if (ulp_status) { 2358 /* Check for retry */ 2359 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { 2360 /* ELS command is being retried */ 2361 goto out; 2362 } 2363 2364 /* If we don't send GFT_ID to Fabric, a PRLI error 2365 * could be expected. 2366 */ 2367 if ((vport->fc_flag & FC_FABRIC) || 2368 (vport->cfg_enable_fc4_type != LPFC_ENABLE_BOTH)) { 2369 mode = KERN_ERR; 2370 loglevel = LOG_TRACE_EVENT; 2371 } else { 2372 mode = KERN_INFO; 2373 loglevel = LOG_ELS; 2374 } 2375 2376 /* PRLI failed */ 2377 lpfc_printf_vlog(vport, mode, loglevel, 2378 "2754 PRLI failure DID:%06X Status:x%x/x%x, " 2379 "data: x%x x%x\n", 2380 ndlp->nlp_DID, ulp_status, 2381 ulp_word4, ndlp->nlp_state, 2382 ndlp->fc4_prli_sent); 2383 2384 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ 2385 if (!lpfc_error_lost_link(ulp_status, ulp_word4)) 2386 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2387 NLP_EVT_CMPL_PRLI); 2388 2389 /* The following condition catches an inflight transition 2390 * mismatch typically caused by an RSCN. Skip any 2391 * processing to allow recovery. 2392 */ 2393 if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE && 2394 ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE) { 2395 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 2396 "2784 PRLI cmpl: state mismatch " 2397 "DID x%06x nstate x%x nflag x%x\n", 2398 ndlp->nlp_DID, ndlp->nlp_state, 2399 ndlp->nlp_flag); 2400 goto out; 2401 } 2402 2403 /* 2404 * For P2P topology, retain the node so that PLOGI can be 2405 * attempted on it again. 2406 */ 2407 if (vport->fc_flag & FC_PT2PT) 2408 goto out; 2409 2410 /* As long as this node is not registered with the SCSI 2411 * or NVMe transport and no other PRLIs are outstanding, 2412 * it is no longer an active node. Otherwise devloss 2413 * handles the final cleanup. 2414 */ 2415 spin_lock_irq(&ndlp->lock); 2416 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) && 2417 !ndlp->fc4_prli_sent) { 2418 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 2419 if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS)) 2420 release_node = true; 2421 } 2422 spin_unlock_irq(&ndlp->lock); 2423 2424 if (release_node) 2425 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2426 NLP_EVT_DEVICE_RM); 2427 } else { 2428 /* Good status, call state machine. However, if another 2429 * PRLI is outstanding, don't call the state machine 2430 * because final disposition to Mapped or Unmapped is 2431 * completed there. 2432 */ 2433 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2434 NLP_EVT_CMPL_PRLI); 2435 } 2436 2437 out: 2438 lpfc_els_free_iocb(phba, cmdiocb); 2439 lpfc_nlp_put(ndlp); 2440 return; 2441 } 2442 2443 /** 2444 * lpfc_issue_els_prli - Issue a prli iocb command for a vport 2445 * @vport: pointer to a host virtual N_Port data structure. 2446 * @ndlp: pointer to a node-list data structure. 2447 * @retry: number of retries to the command IOCB. 2448 * 2449 * This routine issues a Process Login (PRLI) ELS command for the 2450 * @vport. The PRLI service parameters are set up in the payload of the 2451 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine 2452 * is put to the IOCB completion callback func field before invoking the 2453 * routine lpfc_sli_issue_iocb() to send out PRLI command. 2454 * 2455 * Note that the ndlp reference count will be incremented by 1 for holding the 2456 * ndlp and the reference to ndlp will be stored into the ndlp field of 2457 * the IOCB for the completion callback function to the PRLI ELS command. 2458 * 2459 * Return code 2460 * 0 - successfully issued prli iocb command for @vport 2461 * 1 - failed to issue prli iocb command for @vport 2462 **/ 2463 int 2464 lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2465 uint8_t retry) 2466 { 2467 int rc = 0; 2468 struct lpfc_hba *phba = vport->phba; 2469 PRLI *npr; 2470 struct lpfc_nvme_prli *npr_nvme; 2471 struct lpfc_iocbq *elsiocb; 2472 uint8_t *pcmd; 2473 uint16_t cmdsize; 2474 u32 local_nlp_type, elscmd; 2475 2476 /* 2477 * If we are in RSCN mode, the FC4 types supported from a 2478 * previous GFT_ID command may not be accurate. So, if we 2479 * are a NVME Initiator, always look for the possibility of 2480 * the remote NPort beng a NVME Target. 2481 */ 2482 if (phba->sli_rev == LPFC_SLI_REV4 && 2483 vport->fc_flag & FC_RSCN_MODE && 2484 vport->nvmei_support) 2485 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 2486 local_nlp_type = ndlp->nlp_fc4_type; 2487 2488 /* This routine will issue 1 or 2 PRLIs, so zero all the ndlp 2489 * fields here before any of them can complete. 2490 */ 2491 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 2492 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 2493 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 2494 ndlp->nlp_flag &= ~(NLP_FIRSTBURST | NLP_NPR_2B_DISC); 2495 ndlp->nvme_fb_size = 0; 2496 2497 send_next_prli: 2498 if (local_nlp_type & NLP_FC4_FCP) { 2499 /* Payload is 4 + 16 = 20 x14 bytes. */ 2500 cmdsize = (sizeof(uint32_t) + sizeof(PRLI)); 2501 elscmd = ELS_CMD_PRLI; 2502 } else if (local_nlp_type & NLP_FC4_NVME) { 2503 /* Payload is 4 + 20 = 24 x18 bytes. */ 2504 cmdsize = (sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli)); 2505 elscmd = ELS_CMD_NVMEPRLI; 2506 } else { 2507 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2508 "3083 Unknown FC_TYPE x%x ndlp x%06x\n", 2509 ndlp->nlp_fc4_type, ndlp->nlp_DID); 2510 return 1; 2511 } 2512 2513 /* SLI3 ports don't support NVME. If this rport is a strict NVME 2514 * FC4 type, implicitly LOGO. 2515 */ 2516 if (phba->sli_rev == LPFC_SLI_REV3 && 2517 ndlp->nlp_fc4_type == NLP_FC4_NVME) { 2518 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2519 "3088 Rport fc4 type 0x%x not supported by SLI3 adapter\n", 2520 ndlp->nlp_type); 2521 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 2522 return 1; 2523 } 2524 2525 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 2526 ndlp->nlp_DID, elscmd); 2527 if (!elsiocb) 2528 return 1; 2529 2530 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 2531 2532 /* For PRLI request, remainder of payload is service parameters */ 2533 memset(pcmd, 0, cmdsize); 2534 2535 if (local_nlp_type & NLP_FC4_FCP) { 2536 /* Remainder of payload is FCP PRLI parameter page. 2537 * Note: this data structure is defined as 2538 * BE/LE in the structure definition so no 2539 * byte swap call is made. 2540 */ 2541 *((uint32_t *)(pcmd)) = ELS_CMD_PRLI; 2542 pcmd += sizeof(uint32_t); 2543 npr = (PRLI *)pcmd; 2544 2545 /* 2546 * If our firmware version is 3.20 or later, 2547 * set the following bits for FC-TAPE support. 2548 */ 2549 if (phba->vpd.rev.feaLevelHigh >= 0x02) { 2550 npr->ConfmComplAllowed = 1; 2551 npr->Retry = 1; 2552 npr->TaskRetryIdReq = 1; 2553 } 2554 npr->estabImagePair = 1; 2555 npr->readXferRdyDis = 1; 2556 if (vport->cfg_first_burst_size) 2557 npr->writeXferRdyDis = 1; 2558 2559 /* For FCP support */ 2560 npr->prliType = PRLI_FCP_TYPE; 2561 npr->initiatorFunc = 1; 2562 elsiocb->cmd_flag |= LPFC_PRLI_FCP_REQ; 2563 2564 /* Remove FCP type - processed. */ 2565 local_nlp_type &= ~NLP_FC4_FCP; 2566 } else if (local_nlp_type & NLP_FC4_NVME) { 2567 /* Remainder of payload is NVME PRLI parameter page. 2568 * This data structure is the newer definition that 2569 * uses bf macros so a byte swap is required. 2570 */ 2571 *((uint32_t *)(pcmd)) = ELS_CMD_NVMEPRLI; 2572 pcmd += sizeof(uint32_t); 2573 npr_nvme = (struct lpfc_nvme_prli *)pcmd; 2574 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE); 2575 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */ 2576 if (phba->nsler) { 2577 bf_set(prli_nsler, npr_nvme, 1); 2578 bf_set(prli_conf, npr_nvme, 1); 2579 } 2580 2581 /* Only initiators request first burst. */ 2582 if ((phba->cfg_nvme_enable_fb) && 2583 !phba->nvmet_support) 2584 bf_set(prli_fba, npr_nvme, 1); 2585 2586 if (phba->nvmet_support) { 2587 bf_set(prli_tgt, npr_nvme, 1); 2588 bf_set(prli_disc, npr_nvme, 1); 2589 } else { 2590 bf_set(prli_init, npr_nvme, 1); 2591 bf_set(prli_conf, npr_nvme, 1); 2592 } 2593 2594 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1); 2595 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4); 2596 elsiocb->cmd_flag |= LPFC_PRLI_NVME_REQ; 2597 2598 /* Remove NVME type - processed. */ 2599 local_nlp_type &= ~NLP_FC4_NVME; 2600 } 2601 2602 phba->fc_stat.elsXmitPRLI++; 2603 elsiocb->cmd_cmpl = lpfc_cmpl_els_prli; 2604 2605 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2606 "Issue PRLI: did:x%x refcnt %d", 2607 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 2608 elsiocb->ndlp = lpfc_nlp_get(ndlp); 2609 if (!elsiocb->ndlp) { 2610 lpfc_els_free_iocb(phba, elsiocb); 2611 return 1; 2612 } 2613 2614 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 2615 if (rc == IOCB_ERROR) { 2616 lpfc_els_free_iocb(phba, elsiocb); 2617 lpfc_nlp_put(ndlp); 2618 return 1; 2619 } 2620 2621 /* The vport counters are used for lpfc_scan_finished, but 2622 * the ndlp is used to track outstanding PRLIs for different 2623 * FC4 types. 2624 */ 2625 spin_lock_irq(&ndlp->lock); 2626 ndlp->nlp_flag |= NLP_PRLI_SND; 2627 vport->fc_prli_sent++; 2628 ndlp->fc4_prli_sent++; 2629 spin_unlock_irq(&ndlp->lock); 2630 2631 /* The driver supports 2 FC4 types. Make sure 2632 * a PRLI is issued for all types before exiting. 2633 */ 2634 if (phba->sli_rev == LPFC_SLI_REV4 && 2635 local_nlp_type & (NLP_FC4_FCP | NLP_FC4_NVME)) 2636 goto send_next_prli; 2637 else 2638 return 0; 2639 } 2640 2641 /** 2642 * lpfc_rscn_disc - Perform rscn discovery for a vport 2643 * @vport: pointer to a host virtual N_Port data structure. 2644 * 2645 * This routine performs Registration State Change Notification (RSCN) 2646 * discovery for a @vport. If the @vport's node port recovery count is not 2647 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all 2648 * the nodes that need recovery. If none of the PLOGI were needed through 2649 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be 2650 * invoked to check and handle possible more RSCN came in during the period 2651 * of processing the current ones. 2652 **/ 2653 static void 2654 lpfc_rscn_disc(struct lpfc_vport *vport) 2655 { 2656 lpfc_can_disctmo(vport); 2657 2658 /* RSCN discovery */ 2659 /* go thru NPR nodes and issue ELS PLOGIs */ 2660 if (vport->fc_npr_cnt) 2661 if (lpfc_els_disc_plogi(vport)) 2662 return; 2663 2664 lpfc_end_rscn(vport); 2665 } 2666 2667 /** 2668 * lpfc_adisc_done - Complete the adisc phase of discovery 2669 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs. 2670 * 2671 * This function is called when the final ADISC is completed during discovery. 2672 * This function handles clearing link attention or issuing reg_vpi depending 2673 * on whether npiv is enabled. This function also kicks off the PLOGI phase of 2674 * discovery. 2675 * This function is called with no locks held. 2676 **/ 2677 static void 2678 lpfc_adisc_done(struct lpfc_vport *vport) 2679 { 2680 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2681 struct lpfc_hba *phba = vport->phba; 2682 2683 /* 2684 * For NPIV, cmpl_reg_vpi will set port_state to READY, 2685 * and continue discovery. 2686 */ 2687 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 2688 !(vport->fc_flag & FC_RSCN_MODE) && 2689 (phba->sli_rev < LPFC_SLI_REV4)) { 2690 2691 /* 2692 * If link is down, clear_la and reg_vpi will be done after 2693 * flogi following a link up event 2694 */ 2695 if (!lpfc_is_link_up(phba)) 2696 return; 2697 2698 /* The ADISCs are complete. Doesn't matter if they 2699 * succeeded or failed because the ADISC completion 2700 * routine guarantees to call the state machine and 2701 * the RPI is either unregistered (failed ADISC response) 2702 * or the RPI is still valid and the node is marked 2703 * mapped for a target. The exchanges should be in the 2704 * correct state. This code is specific to SLI3. 2705 */ 2706 lpfc_issue_clear_la(phba, vport); 2707 lpfc_issue_reg_vpi(phba, vport); 2708 return; 2709 } 2710 /* 2711 * For SLI2, we need to set port_state to READY 2712 * and continue discovery. 2713 */ 2714 if (vport->port_state < LPFC_VPORT_READY) { 2715 /* If we get here, there is nothing to ADISC */ 2716 lpfc_issue_clear_la(phba, vport); 2717 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 2718 vport->num_disc_nodes = 0; 2719 /* go thru NPR list, issue ELS PLOGIs */ 2720 if (vport->fc_npr_cnt) 2721 lpfc_els_disc_plogi(vport); 2722 if (!vport->num_disc_nodes) { 2723 spin_lock_irq(shost->host_lock); 2724 vport->fc_flag &= ~FC_NDISC_ACTIVE; 2725 spin_unlock_irq(shost->host_lock); 2726 lpfc_can_disctmo(vport); 2727 lpfc_end_rscn(vport); 2728 } 2729 } 2730 vport->port_state = LPFC_VPORT_READY; 2731 } else 2732 lpfc_rscn_disc(vport); 2733 } 2734 2735 /** 2736 * lpfc_more_adisc - Issue more adisc as needed 2737 * @vport: pointer to a host virtual N_Port data structure. 2738 * 2739 * This routine determines whether there are more ndlps on a @vport 2740 * node list need to have Address Discover (ADISC) issued. If so, it will 2741 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's 2742 * remaining nodes which need to have ADISC sent. 2743 **/ 2744 void 2745 lpfc_more_adisc(struct lpfc_vport *vport) 2746 { 2747 if (vport->num_disc_nodes) 2748 vport->num_disc_nodes--; 2749 /* Continue discovery with <num_disc_nodes> ADISCs to go */ 2750 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2751 "0210 Continue discovery with %d ADISCs to go " 2752 "Data: x%x x%x x%x\n", 2753 vport->num_disc_nodes, vport->fc_adisc_cnt, 2754 vport->fc_flag, vport->port_state); 2755 /* Check to see if there are more ADISCs to be sent */ 2756 if (vport->fc_flag & FC_NLP_MORE) { 2757 lpfc_set_disctmo(vport); 2758 /* go thru NPR nodes and issue any remaining ELS ADISCs */ 2759 lpfc_els_disc_adisc(vport); 2760 } 2761 if (!vport->num_disc_nodes) 2762 lpfc_adisc_done(vport); 2763 return; 2764 } 2765 2766 /** 2767 * lpfc_cmpl_els_adisc - Completion callback function for adisc 2768 * @phba: pointer to lpfc hba data structure. 2769 * @cmdiocb: pointer to lpfc command iocb data structure. 2770 * @rspiocb: pointer to lpfc response iocb data structure. 2771 * 2772 * This routine is the completion function for issuing the Address Discover 2773 * (ADISC) command. It first checks to see whether link went down during 2774 * the discovery process. If so, the node will be marked as node port 2775 * recovery for issuing discover IOCB by the link attention handler and 2776 * exit. Otherwise, the response status is checked. If error was reported 2777 * in the response status, the ADISC command shall be retried by invoking 2778 * the lpfc_els_retry() routine. Otherwise, if no error was reported in 2779 * the response status, the state machine is invoked to set transition 2780 * with respect to NLP_EVT_CMPL_ADISC event. 2781 **/ 2782 static void 2783 lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2784 struct lpfc_iocbq *rspiocb) 2785 { 2786 struct lpfc_vport *vport = cmdiocb->vport; 2787 IOCB_t *irsp; 2788 struct lpfc_nodelist *ndlp; 2789 int disc; 2790 u32 ulp_status, ulp_word4, tmo; 2791 bool release_node = false; 2792 2793 /* we pass cmdiocb to state machine which needs rspiocb as well */ 2794 cmdiocb->rsp_iocb = rspiocb; 2795 2796 ndlp = cmdiocb->ndlp; 2797 2798 ulp_status = get_job_ulpstatus(phba, rspiocb); 2799 ulp_word4 = get_job_word4(phba, rspiocb); 2800 2801 if (phba->sli_rev == LPFC_SLI_REV4) { 2802 tmo = get_wqe_tmo(cmdiocb); 2803 } else { 2804 irsp = &rspiocb->iocb; 2805 tmo = irsp->ulpTimeout; 2806 } 2807 2808 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2809 "ADISC cmpl: status:x%x/x%x did:x%x", 2810 ulp_status, ulp_word4, 2811 ndlp->nlp_DID); 2812 2813 /* Since ndlp can be freed in the disc state machine, note if this node 2814 * is being used during discovery. 2815 */ 2816 spin_lock_irq(&ndlp->lock); 2817 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); 2818 ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC); 2819 spin_unlock_irq(&ndlp->lock); 2820 /* ADISC completes to NPort <nlp_DID> */ 2821 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 2822 "0104 ADISC completes to NPort x%x " 2823 "Data: x%x x%x x%x x%x x%x\n", 2824 ndlp->nlp_DID, ulp_status, ulp_word4, 2825 tmo, disc, vport->num_disc_nodes); 2826 /* Check to see if link went down during discovery */ 2827 if (lpfc_els_chk_latt(vport)) { 2828 spin_lock_irq(&ndlp->lock); 2829 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 2830 spin_unlock_irq(&ndlp->lock); 2831 goto out; 2832 } 2833 2834 if (ulp_status) { 2835 /* Check for retry */ 2836 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { 2837 /* ELS command is being retried */ 2838 if (disc) { 2839 spin_lock_irq(&ndlp->lock); 2840 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 2841 spin_unlock_irq(&ndlp->lock); 2842 lpfc_set_disctmo(vport); 2843 } 2844 goto out; 2845 } 2846 /* ADISC failed */ 2847 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 2848 "2755 ADISC failure DID:%06X Status:x%x/x%x\n", 2849 ndlp->nlp_DID, ulp_status, 2850 ulp_word4); 2851 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2852 NLP_EVT_CMPL_ADISC); 2853 2854 /* As long as this node is not registered with the SCSI or NVMe 2855 * transport, it is no longer an active node. Otherwise 2856 * devloss handles the final cleanup. 2857 */ 2858 spin_lock_irq(&ndlp->lock); 2859 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { 2860 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 2861 if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS)) 2862 release_node = true; 2863 } 2864 spin_unlock_irq(&ndlp->lock); 2865 2866 if (release_node) 2867 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2868 NLP_EVT_DEVICE_RM); 2869 } else 2870 /* Good status, call state machine */ 2871 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2872 NLP_EVT_CMPL_ADISC); 2873 2874 /* Check to see if there are more ADISCs to be sent */ 2875 if (disc && vport->num_disc_nodes) 2876 lpfc_more_adisc(vport); 2877 out: 2878 lpfc_els_free_iocb(phba, cmdiocb); 2879 lpfc_nlp_put(ndlp); 2880 return; 2881 } 2882 2883 /** 2884 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport 2885 * @vport: pointer to a virtual N_Port data structure. 2886 * @ndlp: pointer to a node-list data structure. 2887 * @retry: number of retries to the command IOCB. 2888 * 2889 * This routine issues an Address Discover (ADISC) for an @ndlp on a 2890 * @vport. It prepares the payload of the ADISC ELS command, updates the 2891 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine 2892 * to issue the ADISC ELS command. 2893 * 2894 * Note that the ndlp reference count will be incremented by 1 for holding the 2895 * ndlp and the reference to ndlp will be stored into the ndlp field of 2896 * the IOCB for the completion callback function to the ADISC ELS command. 2897 * 2898 * Return code 2899 * 0 - successfully issued adisc 2900 * 1 - failed to issue adisc 2901 **/ 2902 int 2903 lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2904 uint8_t retry) 2905 { 2906 int rc = 0; 2907 struct lpfc_hba *phba = vport->phba; 2908 ADISC *ap; 2909 struct lpfc_iocbq *elsiocb; 2910 uint8_t *pcmd; 2911 uint16_t cmdsize; 2912 2913 cmdsize = (sizeof(uint32_t) + sizeof(ADISC)); 2914 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 2915 ndlp->nlp_DID, ELS_CMD_ADISC); 2916 if (!elsiocb) 2917 return 1; 2918 2919 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 2920 2921 /* For ADISC request, remainder of payload is service parameters */ 2922 *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; 2923 pcmd += sizeof(uint32_t); 2924 2925 /* Fill in ADISC payload */ 2926 ap = (ADISC *) pcmd; 2927 ap->hardAL_PA = phba->fc_pref_ALPA; 2928 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); 2929 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 2930 ap->DID = be32_to_cpu(vport->fc_myDID); 2931 2932 phba->fc_stat.elsXmitADISC++; 2933 elsiocb->cmd_cmpl = lpfc_cmpl_els_adisc; 2934 spin_lock_irq(&ndlp->lock); 2935 ndlp->nlp_flag |= NLP_ADISC_SND; 2936 spin_unlock_irq(&ndlp->lock); 2937 elsiocb->ndlp = lpfc_nlp_get(ndlp); 2938 if (!elsiocb->ndlp) { 2939 lpfc_els_free_iocb(phba, elsiocb); 2940 goto err; 2941 } 2942 2943 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2944 "Issue ADISC: did:x%x refcnt %d", 2945 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 2946 2947 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 2948 if (rc == IOCB_ERROR) { 2949 lpfc_els_free_iocb(phba, elsiocb); 2950 lpfc_nlp_put(ndlp); 2951 goto err; 2952 } 2953 2954 return 0; 2955 2956 err: 2957 spin_lock_irq(&ndlp->lock); 2958 ndlp->nlp_flag &= ~NLP_ADISC_SND; 2959 spin_unlock_irq(&ndlp->lock); 2960 return 1; 2961 } 2962 2963 /** 2964 * lpfc_cmpl_els_logo - Completion callback function for logo 2965 * @phba: pointer to lpfc hba data structure. 2966 * @cmdiocb: pointer to lpfc command iocb data structure. 2967 * @rspiocb: pointer to lpfc response iocb data structure. 2968 * 2969 * This routine is the completion function for issuing the ELS Logout (LOGO) 2970 * command. If no error status was reported from the LOGO response, the 2971 * state machine of the associated ndlp shall be invoked for transition with 2972 * respect to NLP_EVT_CMPL_LOGO event. 2973 **/ 2974 static void 2975 lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2976 struct lpfc_iocbq *rspiocb) 2977 { 2978 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 2979 struct lpfc_vport *vport = ndlp->vport; 2980 IOCB_t *irsp; 2981 unsigned long flags; 2982 uint32_t skip_recovery = 0; 2983 int wake_up_waiter = 0; 2984 u32 ulp_status; 2985 u32 ulp_word4; 2986 u32 tmo; 2987 2988 /* we pass cmdiocb to state machine which needs rspiocb as well */ 2989 cmdiocb->rsp_iocb = rspiocb; 2990 2991 ulp_status = get_job_ulpstatus(phba, rspiocb); 2992 ulp_word4 = get_job_word4(phba, rspiocb); 2993 2994 if (phba->sli_rev == LPFC_SLI_REV4) { 2995 tmo = get_wqe_tmo(cmdiocb); 2996 } else { 2997 irsp = &rspiocb->iocb; 2998 tmo = irsp->ulpTimeout; 2999 } 3000 3001 spin_lock_irq(&ndlp->lock); 3002 ndlp->nlp_flag &= ~NLP_LOGO_SND; 3003 if (ndlp->save_flags & NLP_WAIT_FOR_LOGO) { 3004 wake_up_waiter = 1; 3005 ndlp->save_flags &= ~NLP_WAIT_FOR_LOGO; 3006 } 3007 spin_unlock_irq(&ndlp->lock); 3008 3009 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3010 "LOGO cmpl: status:x%x/x%x did:x%x", 3011 ulp_status, ulp_word4, 3012 ndlp->nlp_DID); 3013 3014 /* LOGO completes to NPort <nlp_DID> */ 3015 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 3016 "0105 LOGO completes to NPort x%x " 3017 "refcnt %d nflags x%x Data: x%x x%x x%x x%x\n", 3018 ndlp->nlp_DID, kref_read(&ndlp->kref), ndlp->nlp_flag, 3019 ulp_status, ulp_word4, 3020 tmo, vport->num_disc_nodes); 3021 3022 if (lpfc_els_chk_latt(vport)) { 3023 skip_recovery = 1; 3024 goto out; 3025 } 3026 3027 /* The LOGO will not be retried on failure. A LOGO was 3028 * issued to the remote rport and a ACC or RJT or no Answer are 3029 * all acceptable. Note the failure and move forward with 3030 * discovery. The PLOGI will retry. 3031 */ 3032 if (ulp_status) { 3033 /* LOGO failed */ 3034 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3035 "2756 LOGO failure, No Retry DID:%06X " 3036 "Status:x%x/x%x\n", 3037 ndlp->nlp_DID, ulp_status, 3038 ulp_word4); 3039 3040 if (lpfc_error_lost_link(ulp_status, ulp_word4)) { 3041 skip_recovery = 1; 3042 goto out; 3043 } 3044 } 3045 3046 /* Call state machine. This will unregister the rpi if needed. */ 3047 lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO); 3048 3049 /* The driver sets this flag for an NPIV instance that doesn't want to 3050 * log into the remote port. 3051 */ 3052 if (ndlp->nlp_flag & NLP_TARGET_REMOVE) { 3053 spin_lock_irq(&ndlp->lock); 3054 if (phba->sli_rev == LPFC_SLI_REV4) 3055 ndlp->nlp_flag |= NLP_RELEASE_RPI; 3056 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 3057 spin_unlock_irq(&ndlp->lock); 3058 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 3059 NLP_EVT_DEVICE_RM); 3060 goto out_rsrc_free; 3061 } 3062 3063 out: 3064 /* At this point, the LOGO processing is complete. NOTE: For a 3065 * pt2pt topology, we are assuming the NPortID will only change 3066 * on link up processing. For a LOGO / PLOGI initiated by the 3067 * Initiator, we are assuming the NPortID is not going to change. 3068 */ 3069 3070 if (wake_up_waiter && ndlp->logo_waitq) 3071 wake_up(ndlp->logo_waitq); 3072 /* 3073 * If the node is a target, the handling attempts to recover the port. 3074 * For any other port type, the rpi is unregistered as an implicit 3075 * LOGO. 3076 */ 3077 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) && 3078 skip_recovery == 0) { 3079 lpfc_cancel_retry_delay_tmo(vport, ndlp); 3080 spin_lock_irqsave(&ndlp->lock, flags); 3081 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 3082 spin_unlock_irqrestore(&ndlp->lock, flags); 3083 3084 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 3085 "3187 LOGO completes to NPort x%x: Start " 3086 "Recovery Data: x%x x%x x%x x%x\n", 3087 ndlp->nlp_DID, ulp_status, 3088 ulp_word4, tmo, 3089 vport->num_disc_nodes); 3090 3091 lpfc_els_free_iocb(phba, cmdiocb); 3092 lpfc_nlp_put(ndlp); 3093 3094 lpfc_disc_start(vport); 3095 return; 3096 } 3097 3098 /* Cleanup path for failed REG_RPI handling. If REG_RPI fails, the 3099 * driver sends a LOGO to the rport to cleanup. For fabric and 3100 * initiator ports cleanup the node as long as it the node is not 3101 * register with the transport. 3102 */ 3103 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { 3104 spin_lock_irq(&ndlp->lock); 3105 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 3106 spin_unlock_irq(&ndlp->lock); 3107 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 3108 NLP_EVT_DEVICE_RM); 3109 } 3110 out_rsrc_free: 3111 /* Driver is done with the I/O. */ 3112 lpfc_els_free_iocb(phba, cmdiocb); 3113 lpfc_nlp_put(ndlp); 3114 } 3115 3116 /** 3117 * lpfc_issue_els_logo - Issue a logo to an node on a vport 3118 * @vport: pointer to a virtual N_Port data structure. 3119 * @ndlp: pointer to a node-list data structure. 3120 * @retry: number of retries to the command IOCB. 3121 * 3122 * This routine constructs and issues an ELS Logout (LOGO) iocb command 3123 * to a remote node, referred by an @ndlp on a @vport. It constructs the 3124 * payload of the IOCB, properly sets up the @ndlp state, and invokes the 3125 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command. 3126 * 3127 * Note that the ndlp reference count will be incremented by 1 for holding the 3128 * ndlp and the reference to ndlp will be stored into the ndlp field of 3129 * the IOCB for the completion callback function to the LOGO ELS command. 3130 * 3131 * Callers of this routine are expected to unregister the RPI first 3132 * 3133 * Return code 3134 * 0 - successfully issued logo 3135 * 1 - failed to issue logo 3136 **/ 3137 int 3138 lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3139 uint8_t retry) 3140 { 3141 struct lpfc_hba *phba = vport->phba; 3142 struct lpfc_iocbq *elsiocb; 3143 uint8_t *pcmd; 3144 uint16_t cmdsize; 3145 int rc; 3146 3147 spin_lock_irq(&ndlp->lock); 3148 if (ndlp->nlp_flag & NLP_LOGO_SND) { 3149 spin_unlock_irq(&ndlp->lock); 3150 return 0; 3151 } 3152 spin_unlock_irq(&ndlp->lock); 3153 3154 cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name); 3155 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3156 ndlp->nlp_DID, ELS_CMD_LOGO); 3157 if (!elsiocb) 3158 return 1; 3159 3160 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 3161 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; 3162 pcmd += sizeof(uint32_t); 3163 3164 /* Fill in LOGO payload */ 3165 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); 3166 pcmd += sizeof(uint32_t); 3167 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); 3168 3169 phba->fc_stat.elsXmitLOGO++; 3170 elsiocb->cmd_cmpl = lpfc_cmpl_els_logo; 3171 spin_lock_irq(&ndlp->lock); 3172 ndlp->nlp_flag |= NLP_LOGO_SND; 3173 ndlp->nlp_flag &= ~NLP_ISSUE_LOGO; 3174 spin_unlock_irq(&ndlp->lock); 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 3198 err: 3199 spin_lock_irq(&ndlp->lock); 3200 ndlp->nlp_flag &= ~NLP_LOGO_SND; 3201 spin_unlock_irq(&ndlp->lock); 3202 return 1; 3203 } 3204 3205 /** 3206 * lpfc_cmpl_els_cmd - Completion callback function for generic els command 3207 * @phba: pointer to lpfc hba data structure. 3208 * @cmdiocb: pointer to lpfc command iocb data structure. 3209 * @rspiocb: pointer to lpfc response iocb data structure. 3210 * 3211 * This routine is a generic completion callback function for ELS commands. 3212 * Specifically, it is the callback function which does not need to perform 3213 * any command specific operations. It is currently used by the ELS command 3214 * issuing routines for RSCN, lpfc_issue_els_rscn, and the ELS Fibre Channel 3215 * Address Resolution Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). 3216 * Other than certain debug loggings, this callback function simply invokes the 3217 * lpfc_els_chk_latt() routine to check whether link went down during the 3218 * discovery process. 3219 **/ 3220 static void 3221 lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 3222 struct lpfc_iocbq *rspiocb) 3223 { 3224 struct lpfc_vport *vport = cmdiocb->vport; 3225 struct lpfc_nodelist *free_ndlp; 3226 IOCB_t *irsp; 3227 u32 ulp_status, ulp_word4, tmo, did, iotag; 3228 3229 ulp_status = get_job_ulpstatus(phba, rspiocb); 3230 ulp_word4 = get_job_word4(phba, rspiocb); 3231 did = get_job_els_rsp64_did(phba, cmdiocb); 3232 3233 if (phba->sli_rev == LPFC_SLI_REV4) { 3234 tmo = get_wqe_tmo(cmdiocb); 3235 iotag = get_wqe_reqtag(cmdiocb); 3236 } else { 3237 irsp = &rspiocb->iocb; 3238 tmo = irsp->ulpTimeout; 3239 iotag = irsp->ulpIoTag; 3240 } 3241 3242 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3243 "ELS cmd cmpl: status:x%x/x%x did:x%x", 3244 ulp_status, ulp_word4, did); 3245 3246 /* ELS cmd tag <ulpIoTag> completes */ 3247 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 3248 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n", 3249 iotag, ulp_status, ulp_word4, tmo); 3250 3251 /* Check to see if link went down during discovery */ 3252 lpfc_els_chk_latt(vport); 3253 3254 free_ndlp = cmdiocb->ndlp; 3255 3256 lpfc_els_free_iocb(phba, cmdiocb); 3257 lpfc_nlp_put(free_ndlp); 3258 } 3259 3260 /** 3261 * lpfc_reg_fab_ctrl_node - RPI register the fabric controller node. 3262 * @vport: pointer to lpfc_vport data structure. 3263 * @fc_ndlp: pointer to the fabric controller (0xfffffd) node. 3264 * 3265 * This routine registers the rpi assigned to the fabric controller 3266 * NPort_ID (0xfffffd) with the port and moves the node to UNMAPPED 3267 * state triggering a registration with the SCSI transport. 3268 * 3269 * This routine is single out because the fabric controller node 3270 * does not receive a PLOGI. This routine is consumed by the 3271 * SCR and RDF ELS commands. Callers are expected to qualify 3272 * with SLI4 first. 3273 **/ 3274 static int 3275 lpfc_reg_fab_ctrl_node(struct lpfc_vport *vport, struct lpfc_nodelist *fc_ndlp) 3276 { 3277 int rc = 0; 3278 struct lpfc_hba *phba = vport->phba; 3279 struct lpfc_nodelist *ns_ndlp; 3280 LPFC_MBOXQ_t *mbox; 3281 3282 if (fc_ndlp->nlp_flag & NLP_RPI_REGISTERED) 3283 return rc; 3284 3285 ns_ndlp = lpfc_findnode_did(vport, NameServer_DID); 3286 if (!ns_ndlp) 3287 return -ENODEV; 3288 3289 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3290 "0935 %s: Reg FC RPI x%x on FC DID x%x NSSte: x%x\n", 3291 __func__, fc_ndlp->nlp_rpi, fc_ndlp->nlp_DID, 3292 ns_ndlp->nlp_state); 3293 if (ns_ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 3294 return -ENODEV; 3295 3296 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3297 if (!mbox) { 3298 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3299 "0936 %s: no memory for reg_login " 3300 "Data: x%x x%x x%x x%x\n", __func__, 3301 fc_ndlp->nlp_DID, fc_ndlp->nlp_state, 3302 fc_ndlp->nlp_flag, fc_ndlp->nlp_rpi); 3303 return -ENOMEM; 3304 } 3305 rc = lpfc_reg_rpi(phba, vport->vpi, fc_ndlp->nlp_DID, 3306 (u8 *)&vport->fc_sparam, mbox, fc_ndlp->nlp_rpi); 3307 if (rc) { 3308 rc = -EACCES; 3309 goto out; 3310 } 3311 3312 fc_ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 3313 mbox->mbox_cmpl = lpfc_mbx_cmpl_fc_reg_login; 3314 mbox->ctx_ndlp = lpfc_nlp_get(fc_ndlp); 3315 if (!mbox->ctx_ndlp) { 3316 rc = -ENOMEM; 3317 goto out; 3318 } 3319 3320 mbox->vport = vport; 3321 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3322 if (rc == MBX_NOT_FINISHED) { 3323 rc = -ENODEV; 3324 lpfc_nlp_put(fc_ndlp); 3325 goto out; 3326 } 3327 /* Success path. Exit. */ 3328 lpfc_nlp_set_state(vport, fc_ndlp, 3329 NLP_STE_REG_LOGIN_ISSUE); 3330 return 0; 3331 3332 out: 3333 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 3334 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3335 "0938 %s: failed to format reg_login " 3336 "Data: x%x x%x x%x x%x\n", __func__, 3337 fc_ndlp->nlp_DID, fc_ndlp->nlp_state, 3338 fc_ndlp->nlp_flag, fc_ndlp->nlp_rpi); 3339 return rc; 3340 } 3341 3342 /** 3343 * lpfc_cmpl_els_disc_cmd - Completion callback function for Discovery ELS cmd 3344 * @phba: pointer to lpfc hba data structure. 3345 * @cmdiocb: pointer to lpfc command iocb data structure. 3346 * @rspiocb: pointer to lpfc response iocb data structure. 3347 * 3348 * This routine is a generic completion callback function for Discovery ELS cmd. 3349 * Currently used by the ELS command issuing routines for the ELS State Change 3350 * Request (SCR), lpfc_issue_els_scr() and the ELS RDF, lpfc_issue_els_rdf(). 3351 * These commands will be retried once only for ELS timeout errors. 3352 **/ 3353 static void 3354 lpfc_cmpl_els_disc_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 3355 struct lpfc_iocbq *rspiocb) 3356 { 3357 struct lpfc_vport *vport = cmdiocb->vport; 3358 IOCB_t *irsp; 3359 struct lpfc_els_rdf_rsp *prdf; 3360 struct lpfc_dmabuf *pcmd, *prsp; 3361 u32 *pdata; 3362 u32 cmd; 3363 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 3364 u32 ulp_status, ulp_word4, tmo, did, iotag; 3365 3366 ulp_status = get_job_ulpstatus(phba, rspiocb); 3367 ulp_word4 = get_job_word4(phba, rspiocb); 3368 did = get_job_els_rsp64_did(phba, cmdiocb); 3369 3370 if (phba->sli_rev == LPFC_SLI_REV4) { 3371 tmo = get_wqe_tmo(cmdiocb); 3372 iotag = get_wqe_reqtag(cmdiocb); 3373 } else { 3374 irsp = &rspiocb->iocb; 3375 tmo = irsp->ulpTimeout; 3376 iotag = irsp->ulpIoTag; 3377 } 3378 3379 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3380 "ELS cmd cmpl: status:x%x/x%x did:x%x", 3381 ulp_status, ulp_word4, did); 3382 3383 /* ELS cmd tag <ulpIoTag> completes */ 3384 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 3385 "0217 ELS cmd tag x%x completes Data: x%x x%x x%x x%x\n", 3386 iotag, ulp_status, ulp_word4, tmo, cmdiocb->retry); 3387 3388 pcmd = cmdiocb->cmd_dmabuf; 3389 if (!pcmd) 3390 goto out; 3391 3392 pdata = (u32 *)pcmd->virt; 3393 if (!pdata) 3394 goto out; 3395 cmd = *pdata; 3396 3397 /* Only 1 retry for ELS Timeout only */ 3398 if (ulp_status == IOSTAT_LOCAL_REJECT && 3399 ((ulp_word4 & IOERR_PARAM_MASK) == 3400 IOERR_SEQUENCE_TIMEOUT)) { 3401 cmdiocb->retry++; 3402 if (cmdiocb->retry <= 1) { 3403 switch (cmd) { 3404 case ELS_CMD_SCR: 3405 lpfc_issue_els_scr(vport, cmdiocb->retry); 3406 break; 3407 case ELS_CMD_EDC: 3408 lpfc_issue_els_edc(vport, cmdiocb->retry); 3409 break; 3410 case ELS_CMD_RDF: 3411 lpfc_issue_els_rdf(vport, cmdiocb->retry); 3412 break; 3413 } 3414 goto out; 3415 } 3416 phba->fc_stat.elsRetryExceeded++; 3417 } 3418 if (cmd == ELS_CMD_EDC) { 3419 /* must be called before checking uplStatus and returning */ 3420 lpfc_cmpl_els_edc(phba, cmdiocb, rspiocb); 3421 return; 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 goto out; 3429 } 3430 3431 /* The RDF response doesn't have any impact on the running driver 3432 * but the notification descriptors are dumped here for support. 3433 */ 3434 if (cmd == ELS_CMD_RDF) { 3435 int i; 3436 3437 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 3438 if (!prsp) 3439 goto out; 3440 3441 prdf = (struct lpfc_els_rdf_rsp *)prsp->virt; 3442 if (!prdf) 3443 goto out; 3444 3445 for (i = 0; i < ELS_RDF_REG_TAG_CNT && 3446 i < be32_to_cpu(prdf->reg_d1.reg_desc.count); i++) 3447 lpfc_printf_vlog(vport, KERN_INFO, 3448 LOG_ELS | LOG_CGN_MGMT, 3449 "4677 Fabric RDF Notification Grant " 3450 "Data: 0x%08x Reg: %x %x\n", 3451 be32_to_cpu( 3452 prdf->reg_d1.desc_tags[i]), 3453 phba->cgn_reg_signal, 3454 phba->cgn_reg_fpin); 3455 } 3456 3457 out: 3458 /* Check to see if link went down during discovery */ 3459 lpfc_els_chk_latt(vport); 3460 lpfc_els_free_iocb(phba, cmdiocb); 3461 lpfc_nlp_put(ndlp); 3462 return; 3463 } 3464 3465 /** 3466 * lpfc_issue_els_scr - Issue a scr to an node on a vport 3467 * @vport: pointer to a host virtual N_Port data structure. 3468 * @retry: retry counter for the command IOCB. 3469 * 3470 * This routine issues a State Change Request (SCR) to a fabric node 3471 * on a @vport. The remote node is Fabric Controller (0xfffffd). It 3472 * first search the @vport node list to find the matching ndlp. If no such 3473 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An 3474 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb() 3475 * routine is invoked to send the SCR IOCB. 3476 * 3477 * Note that the ndlp reference count will be incremented by 1 for holding the 3478 * ndlp and the reference to ndlp will be stored into the ndlp field of 3479 * the IOCB for the completion callback function to the SCR ELS command. 3480 * 3481 * Return code 3482 * 0 - Successfully issued scr command 3483 * 1 - Failed to issue scr command 3484 **/ 3485 int 3486 lpfc_issue_els_scr(struct lpfc_vport *vport, uint8_t retry) 3487 { 3488 int rc = 0; 3489 struct lpfc_hba *phba = vport->phba; 3490 struct lpfc_iocbq *elsiocb; 3491 uint8_t *pcmd; 3492 uint16_t cmdsize; 3493 struct lpfc_nodelist *ndlp; 3494 3495 cmdsize = (sizeof(uint32_t) + sizeof(SCR)); 3496 3497 ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID); 3498 if (!ndlp) { 3499 ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID); 3500 if (!ndlp) 3501 return 1; 3502 lpfc_enqueue_node(vport, ndlp); 3503 } 3504 3505 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3506 ndlp->nlp_DID, ELS_CMD_SCR); 3507 if (!elsiocb) 3508 return 1; 3509 3510 if (phba->sli_rev == LPFC_SLI_REV4) { 3511 rc = lpfc_reg_fab_ctrl_node(vport, ndlp); 3512 if (rc) { 3513 lpfc_els_free_iocb(phba, elsiocb); 3514 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3515 "0937 %s: Failed to reg fc node, rc %d\n", 3516 __func__, rc); 3517 return 1; 3518 } 3519 } 3520 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 3521 3522 *((uint32_t *) (pcmd)) = ELS_CMD_SCR; 3523 pcmd += sizeof(uint32_t); 3524 3525 /* For SCR, remainder of payload is SCR parameter page */ 3526 memset(pcmd, 0, sizeof(SCR)); 3527 ((SCR *) pcmd)->Function = SCR_FUNC_FULL; 3528 3529 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3530 "Issue SCR: did:x%x", 3531 ndlp->nlp_DID, 0, 0); 3532 3533 phba->fc_stat.elsXmitSCR++; 3534 elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd; 3535 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3536 if (!elsiocb->ndlp) { 3537 lpfc_els_free_iocb(phba, elsiocb); 3538 return 1; 3539 } 3540 3541 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3542 "Issue SCR: did:x%x refcnt %d", 3543 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 3544 3545 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3546 if (rc == IOCB_ERROR) { 3547 lpfc_els_free_iocb(phba, elsiocb); 3548 lpfc_nlp_put(ndlp); 3549 return 1; 3550 } 3551 3552 return 0; 3553 } 3554 3555 /** 3556 * lpfc_issue_els_rscn - Issue an RSCN to the Fabric Controller (Fabric) 3557 * or the other nport (pt2pt). 3558 * @vport: pointer to a host virtual N_Port data structure. 3559 * @retry: number of retries to the command IOCB. 3560 * 3561 * This routine issues a RSCN to the Fabric Controller (DID 0xFFFFFD) 3562 * when connected to a fabric, or to the remote port when connected 3563 * in point-to-point mode. When sent to the Fabric Controller, it will 3564 * replay the RSCN to registered recipients. 3565 * 3566 * Note that the ndlp reference count will be incremented by 1 for holding the 3567 * ndlp and the reference to ndlp will be stored into the ndlp field of 3568 * the IOCB for the completion callback function to the RSCN ELS command. 3569 * 3570 * Return code 3571 * 0 - Successfully issued RSCN command 3572 * 1 - Failed to issue RSCN command 3573 **/ 3574 int 3575 lpfc_issue_els_rscn(struct lpfc_vport *vport, uint8_t retry) 3576 { 3577 int rc = 0; 3578 struct lpfc_hba *phba = vport->phba; 3579 struct lpfc_iocbq *elsiocb; 3580 struct lpfc_nodelist *ndlp; 3581 struct { 3582 struct fc_els_rscn rscn; 3583 struct fc_els_rscn_page portid; 3584 } *event; 3585 uint32_t nportid; 3586 uint16_t cmdsize = sizeof(*event); 3587 3588 /* Not supported for private loop */ 3589 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 3590 !(vport->fc_flag & FC_PUBLIC_LOOP)) 3591 return 1; 3592 3593 if (vport->fc_flag & FC_PT2PT) { 3594 /* find any mapped nport - that would be the other nport */ 3595 ndlp = lpfc_findnode_mapped(vport); 3596 if (!ndlp) 3597 return 1; 3598 } else { 3599 nportid = FC_FID_FCTRL; 3600 /* find the fabric controller node */ 3601 ndlp = lpfc_findnode_did(vport, nportid); 3602 if (!ndlp) { 3603 /* if one didn't exist, make one */ 3604 ndlp = lpfc_nlp_init(vport, nportid); 3605 if (!ndlp) 3606 return 1; 3607 lpfc_enqueue_node(vport, ndlp); 3608 } 3609 } 3610 3611 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3612 ndlp->nlp_DID, ELS_CMD_RSCN_XMT); 3613 3614 if (!elsiocb) 3615 return 1; 3616 3617 event = elsiocb->cmd_dmabuf->virt; 3618 3619 event->rscn.rscn_cmd = ELS_RSCN; 3620 event->rscn.rscn_page_len = sizeof(struct fc_els_rscn_page); 3621 event->rscn.rscn_plen = cpu_to_be16(cmdsize); 3622 3623 nportid = vport->fc_myDID; 3624 /* appears that page flags must be 0 for fabric to broadcast RSCN */ 3625 event->portid.rscn_page_flags = 0; 3626 event->portid.rscn_fid[0] = (nportid & 0x00FF0000) >> 16; 3627 event->portid.rscn_fid[1] = (nportid & 0x0000FF00) >> 8; 3628 event->portid.rscn_fid[2] = nportid & 0x000000FF; 3629 3630 phba->fc_stat.elsXmitRSCN++; 3631 elsiocb->cmd_cmpl = lpfc_cmpl_els_cmd; 3632 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3633 if (!elsiocb->ndlp) { 3634 lpfc_els_free_iocb(phba, elsiocb); 3635 return 1; 3636 } 3637 3638 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3639 "Issue RSCN: did:x%x", 3640 ndlp->nlp_DID, 0, 0); 3641 3642 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3643 if (rc == IOCB_ERROR) { 3644 lpfc_els_free_iocb(phba, elsiocb); 3645 lpfc_nlp_put(ndlp); 3646 return 1; 3647 } 3648 3649 return 0; 3650 } 3651 3652 /** 3653 * lpfc_issue_els_farpr - Issue a farp to an node on a vport 3654 * @vport: pointer to a host virtual N_Port data structure. 3655 * @nportid: N_Port identifier to the remote node. 3656 * @retry: number of retries to the command IOCB. 3657 * 3658 * This routine issues a Fibre Channel Address Resolution Response 3659 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid) 3660 * is passed into the function. It first search the @vport node list to find 3661 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created 3662 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the 3663 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command. 3664 * 3665 * Note that the ndlp reference count will be incremented by 1 for holding the 3666 * ndlp and the reference to ndlp will be stored into the ndlp field of 3667 * the IOCB for the completion callback function to the FARPR ELS command. 3668 * 3669 * Return code 3670 * 0 - Successfully issued farpr command 3671 * 1 - Failed to issue farpr command 3672 **/ 3673 static int 3674 lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) 3675 { 3676 int rc = 0; 3677 struct lpfc_hba *phba = vport->phba; 3678 struct lpfc_iocbq *elsiocb; 3679 FARP *fp; 3680 uint8_t *pcmd; 3681 uint32_t *lp; 3682 uint16_t cmdsize; 3683 struct lpfc_nodelist *ondlp; 3684 struct lpfc_nodelist *ndlp; 3685 3686 cmdsize = (sizeof(uint32_t) + sizeof(FARP)); 3687 3688 ndlp = lpfc_findnode_did(vport, nportid); 3689 if (!ndlp) { 3690 ndlp = lpfc_nlp_init(vport, nportid); 3691 if (!ndlp) 3692 return 1; 3693 lpfc_enqueue_node(vport, ndlp); 3694 } 3695 3696 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3697 ndlp->nlp_DID, ELS_CMD_FARPR); 3698 if (!elsiocb) 3699 return 1; 3700 3701 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 3702 3703 *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; 3704 pcmd += sizeof(uint32_t); 3705 3706 /* Fill in FARPR payload */ 3707 fp = (FARP *) (pcmd); 3708 memset(fp, 0, sizeof(FARP)); 3709 lp = (uint32_t *) pcmd; 3710 *lp++ = be32_to_cpu(nportid); 3711 *lp++ = be32_to_cpu(vport->fc_myDID); 3712 fp->Rflags = 0; 3713 fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); 3714 3715 memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)); 3716 memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 3717 ondlp = lpfc_findnode_did(vport, nportid); 3718 if (ondlp) { 3719 memcpy(&fp->OportName, &ondlp->nlp_portname, 3720 sizeof(struct lpfc_name)); 3721 memcpy(&fp->OnodeName, &ondlp->nlp_nodename, 3722 sizeof(struct lpfc_name)); 3723 } 3724 3725 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3726 "Issue FARPR: did:x%x", 3727 ndlp->nlp_DID, 0, 0); 3728 3729 phba->fc_stat.elsXmitFARPR++; 3730 elsiocb->cmd_cmpl = lpfc_cmpl_els_cmd; 3731 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3732 if (!elsiocb->ndlp) { 3733 lpfc_els_free_iocb(phba, elsiocb); 3734 return 1; 3735 } 3736 3737 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3738 if (rc == IOCB_ERROR) { 3739 /* The additional lpfc_nlp_put will cause the following 3740 * lpfc_els_free_iocb routine to trigger the release of 3741 * the node. 3742 */ 3743 lpfc_els_free_iocb(phba, elsiocb); 3744 lpfc_nlp_put(ndlp); 3745 return 1; 3746 } 3747 /* This will cause the callback-function lpfc_cmpl_els_cmd to 3748 * trigger the release of the node. 3749 */ 3750 /* Don't release reference count as RDF is likely outstanding */ 3751 return 0; 3752 } 3753 3754 /** 3755 * lpfc_issue_els_rdf - Register for diagnostic functions from the fabric. 3756 * @vport: pointer to a host virtual N_Port data structure. 3757 * @retry: retry counter for the command IOCB. 3758 * 3759 * This routine issues an ELS RDF to the Fabric Controller to register 3760 * for diagnostic functions. 3761 * 3762 * Note that the ndlp reference count will be incremented by 1 for holding the 3763 * ndlp and the reference to ndlp will be stored into the ndlp field of 3764 * the IOCB for the completion callback function to the RDF ELS command. 3765 * 3766 * Return code 3767 * 0 - Successfully issued rdf command 3768 * 1 - Failed to issue rdf command 3769 **/ 3770 int 3771 lpfc_issue_els_rdf(struct lpfc_vport *vport, uint8_t retry) 3772 { 3773 struct lpfc_hba *phba = vport->phba; 3774 struct lpfc_iocbq *elsiocb; 3775 struct lpfc_els_rdf_req *prdf; 3776 struct lpfc_nodelist *ndlp; 3777 uint16_t cmdsize; 3778 int rc; 3779 3780 cmdsize = sizeof(*prdf); 3781 3782 ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID); 3783 if (!ndlp) { 3784 ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID); 3785 if (!ndlp) 3786 return -ENODEV; 3787 lpfc_enqueue_node(vport, ndlp); 3788 } 3789 3790 /* RDF ELS is not required on an NPIV VN_Port. */ 3791 if (vport->port_type == LPFC_NPIV_PORT) 3792 return -EACCES; 3793 3794 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3795 ndlp->nlp_DID, ELS_CMD_RDF); 3796 if (!elsiocb) 3797 return -ENOMEM; 3798 3799 /* Configure the payload for the supported FPIN events. */ 3800 prdf = (struct lpfc_els_rdf_req *)elsiocb->cmd_dmabuf->virt; 3801 memset(prdf, 0, cmdsize); 3802 prdf->rdf.fpin_cmd = ELS_RDF; 3803 prdf->rdf.desc_len = cpu_to_be32(sizeof(struct lpfc_els_rdf_req) - 3804 sizeof(struct fc_els_rdf)); 3805 prdf->reg_d1.reg_desc.desc_tag = cpu_to_be32(ELS_DTAG_FPIN_REGISTER); 3806 prdf->reg_d1.reg_desc.desc_len = cpu_to_be32( 3807 FC_TLV_DESC_LENGTH_FROM_SZ(prdf->reg_d1)); 3808 prdf->reg_d1.reg_desc.count = cpu_to_be32(ELS_RDF_REG_TAG_CNT); 3809 prdf->reg_d1.desc_tags[0] = cpu_to_be32(ELS_DTAG_LNK_INTEGRITY); 3810 prdf->reg_d1.desc_tags[1] = cpu_to_be32(ELS_DTAG_DELIVERY); 3811 prdf->reg_d1.desc_tags[2] = cpu_to_be32(ELS_DTAG_PEER_CONGEST); 3812 prdf->reg_d1.desc_tags[3] = cpu_to_be32(ELS_DTAG_CONGESTION); 3813 3814 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 3815 "6444 Xmit RDF to remote NPORT x%x Reg: %x %x\n", 3816 ndlp->nlp_DID, phba->cgn_reg_signal, 3817 phba->cgn_reg_fpin); 3818 3819 phba->cgn_fpin_frequency = LPFC_FPIN_INIT_FREQ; 3820 elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd; 3821 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3822 if (!elsiocb->ndlp) { 3823 lpfc_els_free_iocb(phba, elsiocb); 3824 return -EIO; 3825 } 3826 3827 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3828 "Issue RDF: did:x%x refcnt %d", 3829 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 3830 3831 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3832 if (rc == IOCB_ERROR) { 3833 lpfc_els_free_iocb(phba, elsiocb); 3834 lpfc_nlp_put(ndlp); 3835 return -EIO; 3836 } 3837 return 0; 3838 } 3839 3840 /** 3841 * lpfc_els_rcv_rdf - Receive RDF ELS request from the fabric. 3842 * @vport: pointer to a host virtual N_Port data structure. 3843 * @cmdiocb: pointer to lpfc command iocb data structure. 3844 * @ndlp: pointer to a node-list data structure. 3845 * 3846 * A received RDF implies a possible change to fabric supported diagnostic 3847 * functions. This routine sends LS_ACC and then has the Nx_Port issue a new 3848 * RDF request to reregister for supported diagnostic functions. 3849 * 3850 * Return code 3851 * 0 - Success 3852 * -EIO - Failed to process received RDF 3853 **/ 3854 static int 3855 lpfc_els_rcv_rdf(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 3856 struct lpfc_nodelist *ndlp) 3857 { 3858 /* Send LS_ACC */ 3859 if (lpfc_els_rsp_acc(vport, ELS_CMD_RDF, cmdiocb, ndlp, NULL)) { 3860 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 3861 "1623 Failed to RDF_ACC from x%x for x%x\n", 3862 ndlp->nlp_DID, vport->fc_myDID); 3863 return -EIO; 3864 } 3865 3866 /* Issue new RDF for reregistering */ 3867 if (lpfc_issue_els_rdf(vport, 0)) { 3868 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 3869 "2623 Failed to re register RDF for x%x\n", 3870 vport->fc_myDID); 3871 return -EIO; 3872 } 3873 3874 return 0; 3875 } 3876 3877 /** 3878 * lpfc_least_capable_settings - helper function for EDC rsp processing 3879 * @phba: pointer to lpfc hba data structure. 3880 * @pcgd: pointer to congestion detection descriptor in EDC rsp. 3881 * 3882 * This helper routine determines the least capable setting for 3883 * congestion signals, signal freq, including scale, from the 3884 * congestion detection descriptor in the EDC rsp. The routine 3885 * sets @phba values in preparation for a set_featues mailbox. 3886 **/ 3887 static void 3888 lpfc_least_capable_settings(struct lpfc_hba *phba, 3889 struct fc_diag_cg_sig_desc *pcgd) 3890 { 3891 u32 rsp_sig_cap = 0, drv_sig_cap = 0; 3892 u32 rsp_sig_freq_cyc = 0, rsp_sig_freq_scale = 0; 3893 3894 /* Get rsp signal and frequency capabilities. */ 3895 rsp_sig_cap = be32_to_cpu(pcgd->xmt_signal_capability); 3896 rsp_sig_freq_cyc = be16_to_cpu(pcgd->xmt_signal_frequency.count); 3897 rsp_sig_freq_scale = be16_to_cpu(pcgd->xmt_signal_frequency.units); 3898 3899 /* If the Fport does not support signals. Set FPIN only */ 3900 if (rsp_sig_cap == EDC_CG_SIG_NOTSUPPORTED) 3901 goto out_no_support; 3902 3903 /* Apply the xmt scale to the xmt cycle to get the correct frequency. 3904 * Adapter default is 100 millisSeconds. Convert all xmt cycle values 3905 * to milliSeconds. 3906 */ 3907 switch (rsp_sig_freq_scale) { 3908 case EDC_CG_SIGFREQ_SEC: 3909 rsp_sig_freq_cyc *= MSEC_PER_SEC; 3910 break; 3911 case EDC_CG_SIGFREQ_MSEC: 3912 rsp_sig_freq_cyc = 1; 3913 break; 3914 default: 3915 goto out_no_support; 3916 } 3917 3918 /* Convenient shorthand. */ 3919 drv_sig_cap = phba->cgn_reg_signal; 3920 3921 /* Choose the least capable frequency. */ 3922 if (rsp_sig_freq_cyc > phba->cgn_sig_freq) 3923 phba->cgn_sig_freq = rsp_sig_freq_cyc; 3924 3925 /* Should be some common signals support. Settle on least capable 3926 * signal and adjust FPIN values. Initialize defaults to ease the 3927 * decision. 3928 */ 3929 phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM; 3930 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 3931 if (rsp_sig_cap == EDC_CG_SIG_WARN_ONLY && 3932 (drv_sig_cap == EDC_CG_SIG_WARN_ONLY || 3933 drv_sig_cap == EDC_CG_SIG_WARN_ALARM)) { 3934 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY; 3935 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN; 3936 } 3937 if (rsp_sig_cap == EDC_CG_SIG_WARN_ALARM) { 3938 if (drv_sig_cap == EDC_CG_SIG_WARN_ALARM) { 3939 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ALARM; 3940 phba->cgn_reg_fpin = LPFC_CGN_FPIN_NONE; 3941 } 3942 if (drv_sig_cap == EDC_CG_SIG_WARN_ONLY) { 3943 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY; 3944 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN; 3945 } 3946 } 3947 3948 /* We are NOT recording signal frequency in congestion info buffer */ 3949 return; 3950 3951 out_no_support: 3952 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 3953 phba->cgn_sig_freq = 0; 3954 phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN; 3955 } 3956 3957 DECLARE_ENUM2STR_LOOKUP(lpfc_get_tlv_dtag_nm, fc_ls_tlv_dtag, 3958 FC_LS_TLV_DTAG_INIT); 3959 3960 /** 3961 * lpfc_cmpl_els_edc - Completion callback function for EDC 3962 * @phba: pointer to lpfc hba data structure. 3963 * @cmdiocb: pointer to lpfc command iocb data structure. 3964 * @rspiocb: pointer to lpfc response iocb data structure. 3965 * 3966 * This routine is the completion callback function for issuing the Exchange 3967 * Diagnostic Capabilities (EDC) command. The driver issues an EDC to 3968 * notify the FPort of its Congestion and Link Fault capabilities. This 3969 * routine parses the FPort's response and decides on the least common 3970 * values applicable to both FPort and NPort for Warnings and Alarms that 3971 * are communicated via hardware signals. 3972 **/ 3973 static void 3974 lpfc_cmpl_els_edc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 3975 struct lpfc_iocbq *rspiocb) 3976 { 3977 IOCB_t *irsp_iocb; 3978 struct fc_els_edc_resp *edc_rsp; 3979 struct fc_tlv_desc *tlv; 3980 struct fc_diag_cg_sig_desc *pcgd; 3981 struct fc_diag_lnkflt_desc *plnkflt; 3982 struct lpfc_dmabuf *pcmd, *prsp; 3983 const char *dtag_nm; 3984 u32 *pdata, dtag; 3985 int desc_cnt = 0, bytes_remain; 3986 bool rcv_cap_desc = false; 3987 struct lpfc_nodelist *ndlp; 3988 u32 ulp_status, ulp_word4, tmo, did, iotag; 3989 3990 ndlp = cmdiocb->ndlp; 3991 3992 ulp_status = get_job_ulpstatus(phba, rspiocb); 3993 ulp_word4 = get_job_word4(phba, rspiocb); 3994 did = get_job_els_rsp64_did(phba, rspiocb); 3995 3996 if (phba->sli_rev == LPFC_SLI_REV4) { 3997 tmo = get_wqe_tmo(rspiocb); 3998 iotag = get_wqe_reqtag(rspiocb); 3999 } else { 4000 irsp_iocb = &rspiocb->iocb; 4001 tmo = irsp_iocb->ulpTimeout; 4002 iotag = irsp_iocb->ulpIoTag; 4003 } 4004 4005 lpfc_debugfs_disc_trc(phba->pport, LPFC_DISC_TRC_ELS_CMD, 4006 "EDC cmpl: status:x%x/x%x did:x%x", 4007 ulp_status, ulp_word4, did); 4008 4009 /* ELS cmd tag <ulpIoTag> completes */ 4010 lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 4011 "4201 EDC cmd tag x%x completes Data: x%x x%x x%x\n", 4012 iotag, ulp_status, ulp_word4, tmo); 4013 4014 pcmd = cmdiocb->cmd_dmabuf; 4015 if (!pcmd) 4016 goto out; 4017 4018 pdata = (u32 *)pcmd->virt; 4019 if (!pdata) 4020 goto out; 4021 4022 /* Need to clear signal values, send features MB and RDF with FPIN. */ 4023 if (ulp_status) 4024 goto out; 4025 4026 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 4027 if (!prsp) 4028 goto out; 4029 4030 edc_rsp = prsp->virt; 4031 if (!edc_rsp) 4032 goto out; 4033 4034 /* ELS cmd tag <ulpIoTag> completes */ 4035 lpfc_printf_log(phba, KERN_INFO, 4036 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 4037 "4676 Fabric EDC Rsp: " 4038 "0x%02x, 0x%08x\n", 4039 edc_rsp->acc_hdr.la_cmd, 4040 be32_to_cpu(edc_rsp->desc_list_len)); 4041 4042 /* 4043 * Payload length in bytes is the response descriptor list 4044 * length minus the 12 bytes of Link Service Request 4045 * Information descriptor in the reply. 4046 */ 4047 bytes_remain = be32_to_cpu(edc_rsp->desc_list_len) - 4048 sizeof(struct fc_els_lsri_desc); 4049 if (bytes_remain <= 0) 4050 goto out; 4051 4052 tlv = edc_rsp->desc; 4053 4054 /* 4055 * cycle through EDC diagnostic descriptors to find the 4056 * congestion signaling capability descriptor 4057 */ 4058 while (bytes_remain) { 4059 if (bytes_remain < FC_TLV_DESC_HDR_SZ) { 4060 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 4061 "6461 Truncated TLV hdr on " 4062 "Diagnostic descriptor[%d]\n", 4063 desc_cnt); 4064 goto out; 4065 } 4066 4067 dtag = be32_to_cpu(tlv->desc_tag); 4068 switch (dtag) { 4069 case ELS_DTAG_LNK_FAULT_CAP: 4070 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 4071 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 4072 sizeof(struct fc_diag_lnkflt_desc)) { 4073 lpfc_printf_log(phba, KERN_WARNING, 4074 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 4075 "6462 Truncated Link Fault Diagnostic " 4076 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 4077 desc_cnt, bytes_remain, 4078 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 4079 sizeof(struct fc_diag_lnkflt_desc)); 4080 goto out; 4081 } 4082 plnkflt = (struct fc_diag_lnkflt_desc *)tlv; 4083 lpfc_printf_log(phba, KERN_INFO, 4084 LOG_ELS | LOG_LDS_EVENT, 4085 "4617 Link Fault Desc Data: 0x%08x 0x%08x " 4086 "0x%08x 0x%08x 0x%08x\n", 4087 be32_to_cpu(plnkflt->desc_tag), 4088 be32_to_cpu(plnkflt->desc_len), 4089 be32_to_cpu( 4090 plnkflt->degrade_activate_threshold), 4091 be32_to_cpu( 4092 plnkflt->degrade_deactivate_threshold), 4093 be32_to_cpu(plnkflt->fec_degrade_interval)); 4094 break; 4095 case ELS_DTAG_CG_SIGNAL_CAP: 4096 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 4097 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 4098 sizeof(struct fc_diag_cg_sig_desc)) { 4099 lpfc_printf_log( 4100 phba, KERN_WARNING, LOG_CGN_MGMT, 4101 "6463 Truncated Cgn Signal Diagnostic " 4102 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 4103 desc_cnt, bytes_remain, 4104 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 4105 sizeof(struct fc_diag_cg_sig_desc)); 4106 goto out; 4107 } 4108 4109 pcgd = (struct fc_diag_cg_sig_desc *)tlv; 4110 lpfc_printf_log( 4111 phba, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 4112 "4616 CGN Desc Data: 0x%08x 0x%08x " 4113 "0x%08x 0x%04x 0x%04x 0x%08x 0x%04x 0x%04x\n", 4114 be32_to_cpu(pcgd->desc_tag), 4115 be32_to_cpu(pcgd->desc_len), 4116 be32_to_cpu(pcgd->xmt_signal_capability), 4117 be16_to_cpu(pcgd->xmt_signal_frequency.count), 4118 be16_to_cpu(pcgd->xmt_signal_frequency.units), 4119 be32_to_cpu(pcgd->rcv_signal_capability), 4120 be16_to_cpu(pcgd->rcv_signal_frequency.count), 4121 be16_to_cpu(pcgd->rcv_signal_frequency.units)); 4122 4123 /* Compare driver and Fport capabilities and choose 4124 * least common. 4125 */ 4126 lpfc_least_capable_settings(phba, pcgd); 4127 rcv_cap_desc = true; 4128 break; 4129 default: 4130 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 4131 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 4132 "4919 unknown Diagnostic " 4133 "Descriptor[%d]: tag x%x (%s)\n", 4134 desc_cnt, dtag, dtag_nm); 4135 } 4136 4137 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv); 4138 tlv = fc_tlv_next_desc(tlv); 4139 desc_cnt++; 4140 } 4141 4142 out: 4143 if (!rcv_cap_desc) { 4144 phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN; 4145 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 4146 phba->cgn_sig_freq = 0; 4147 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_CGN_MGMT, 4148 "4202 EDC rsp error - sending RDF " 4149 "for FPIN only.\n"); 4150 } 4151 4152 lpfc_config_cgn_signal(phba); 4153 4154 /* Check to see if link went down during discovery */ 4155 lpfc_els_chk_latt(phba->pport); 4156 lpfc_debugfs_disc_trc(phba->pport, LPFC_DISC_TRC_ELS_CMD, 4157 "EDC Cmpl: did:x%x refcnt %d", 4158 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 4159 lpfc_els_free_iocb(phba, cmdiocb); 4160 lpfc_nlp_put(ndlp); 4161 } 4162 4163 static void 4164 lpfc_format_edc_lft_desc(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 4165 { 4166 struct fc_diag_lnkflt_desc *lft = (struct fc_diag_lnkflt_desc *)tlv; 4167 4168 lft->desc_tag = cpu_to_be32(ELS_DTAG_LNK_FAULT_CAP); 4169 lft->desc_len = cpu_to_be32( 4170 FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_diag_lnkflt_desc)); 4171 4172 lft->degrade_activate_threshold = 4173 cpu_to_be32(phba->degrade_activate_threshold); 4174 lft->degrade_deactivate_threshold = 4175 cpu_to_be32(phba->degrade_deactivate_threshold); 4176 lft->fec_degrade_interval = cpu_to_be32(phba->fec_degrade_interval); 4177 } 4178 4179 static void 4180 lpfc_format_edc_cgn_desc(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 4181 { 4182 struct fc_diag_cg_sig_desc *cgd = (struct fc_diag_cg_sig_desc *)tlv; 4183 4184 /* We are assuming cgd was zero'ed before calling this routine */ 4185 4186 /* Configure the congestion detection capability */ 4187 cgd->desc_tag = cpu_to_be32(ELS_DTAG_CG_SIGNAL_CAP); 4188 4189 /* Descriptor len doesn't include the tag or len fields. */ 4190 cgd->desc_len = cpu_to_be32( 4191 FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_diag_cg_sig_desc)); 4192 4193 /* xmt_signal_capability already set to EDC_CG_SIG_NOTSUPPORTED. 4194 * xmt_signal_frequency.count already set to 0. 4195 * xmt_signal_frequency.units already set to 0. 4196 */ 4197 4198 if (phba->cmf_active_mode == LPFC_CFG_OFF) { 4199 /* rcv_signal_capability already set to EDC_CG_SIG_NOTSUPPORTED. 4200 * rcv_signal_frequency.count already set to 0. 4201 * rcv_signal_frequency.units already set to 0. 4202 */ 4203 phba->cgn_sig_freq = 0; 4204 return; 4205 } 4206 switch (phba->cgn_reg_signal) { 4207 case EDC_CG_SIG_WARN_ONLY: 4208 cgd->rcv_signal_capability = cpu_to_be32(EDC_CG_SIG_WARN_ONLY); 4209 break; 4210 case EDC_CG_SIG_WARN_ALARM: 4211 cgd->rcv_signal_capability = cpu_to_be32(EDC_CG_SIG_WARN_ALARM); 4212 break; 4213 default: 4214 /* rcv_signal_capability left 0 thus no support */ 4215 break; 4216 } 4217 4218 /* We start negotiation with lpfc_fabric_cgn_frequency, after 4219 * the completion we settle on the higher frequency. 4220 */ 4221 cgd->rcv_signal_frequency.count = 4222 cpu_to_be16(lpfc_fabric_cgn_frequency); 4223 cgd->rcv_signal_frequency.units = 4224 cpu_to_be16(EDC_CG_SIGFREQ_MSEC); 4225 } 4226 4227 static bool 4228 lpfc_link_is_lds_capable(struct lpfc_hba *phba) 4229 { 4230 if (!(phba->lmt & LMT_64Gb)) 4231 return false; 4232 if (phba->sli_rev != LPFC_SLI_REV4) 4233 return false; 4234 4235 if (phba->sli4_hba.conf_trunk) { 4236 if (phba->trunk_link.phy_lnk_speed == LPFC_USER_LINK_SPEED_64G) 4237 return true; 4238 } else if (phba->fc_linkspeed == LPFC_LINK_SPEED_64GHZ) { 4239 return true; 4240 } 4241 return false; 4242 } 4243 4244 /** 4245 * lpfc_issue_els_edc - Exchange Diagnostic Capabilities with the fabric. 4246 * @vport: pointer to a host virtual N_Port data structure. 4247 * @retry: retry counter for the command iocb. 4248 * 4249 * This routine issues an ELS EDC to the F-Port Controller to communicate 4250 * this N_Port's support of hardware signals in its Congestion 4251 * Capabilities Descriptor. 4252 * 4253 * Note: This routine does not check if one or more signals are 4254 * set in the cgn_reg_signal parameter. The caller makes the 4255 * decision to enforce cgn_reg_signal as nonzero or zero depending 4256 * on the conditions. During Fabric requests, the driver 4257 * requires cgn_reg_signals to be nonzero. But a dynamic request 4258 * to set the congestion mode to OFF from Monitor or Manage 4259 * would correctly issue an EDC with no signals enabled to 4260 * turn off switch functionality and then update the FW. 4261 * 4262 * Return code 4263 * 0 - Successfully issued edc command 4264 * 1 - Failed to issue edc command 4265 **/ 4266 int 4267 lpfc_issue_els_edc(struct lpfc_vport *vport, uint8_t retry) 4268 { 4269 struct lpfc_hba *phba = vport->phba; 4270 struct lpfc_iocbq *elsiocb; 4271 struct fc_els_edc *edc_req; 4272 struct fc_tlv_desc *tlv; 4273 u16 cmdsize; 4274 struct lpfc_nodelist *ndlp; 4275 u8 *pcmd = NULL; 4276 u32 cgn_desc_size, lft_desc_size; 4277 int rc; 4278 4279 if (vport->port_type == LPFC_NPIV_PORT) 4280 return -EACCES; 4281 4282 ndlp = lpfc_findnode_did(vport, Fabric_DID); 4283 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 4284 return -ENODEV; 4285 4286 cgn_desc_size = (phba->cgn_init_reg_signal) ? 4287 sizeof(struct fc_diag_cg_sig_desc) : 0; 4288 lft_desc_size = (lpfc_link_is_lds_capable(phba)) ? 4289 sizeof(struct fc_diag_lnkflt_desc) : 0; 4290 cmdsize = cgn_desc_size + lft_desc_size; 4291 4292 /* Skip EDC if no applicable descriptors */ 4293 if (!cmdsize) 4294 goto try_rdf; 4295 4296 cmdsize += sizeof(struct fc_els_edc); 4297 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 4298 ndlp->nlp_DID, ELS_CMD_EDC); 4299 if (!elsiocb) 4300 goto try_rdf; 4301 4302 /* Configure the payload for the supported Diagnostics capabilities. */ 4303 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 4304 memset(pcmd, 0, cmdsize); 4305 edc_req = (struct fc_els_edc *)pcmd; 4306 edc_req->desc_len = cpu_to_be32(cgn_desc_size + lft_desc_size); 4307 edc_req->edc_cmd = ELS_EDC; 4308 tlv = edc_req->desc; 4309 4310 if (cgn_desc_size) { 4311 lpfc_format_edc_cgn_desc(phba, tlv); 4312 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency; 4313 tlv = fc_tlv_next_desc(tlv); 4314 } 4315 4316 if (lft_desc_size) 4317 lpfc_format_edc_lft_desc(phba, tlv); 4318 4319 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 4320 "4623 Xmit EDC to remote " 4321 "NPORT x%x reg_sig x%x reg_fpin:x%x\n", 4322 ndlp->nlp_DID, phba->cgn_reg_signal, 4323 phba->cgn_reg_fpin); 4324 4325 elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd; 4326 elsiocb->ndlp = lpfc_nlp_get(ndlp); 4327 if (!elsiocb->ndlp) { 4328 lpfc_els_free_iocb(phba, elsiocb); 4329 return -EIO; 4330 } 4331 4332 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4333 "Issue EDC: did:x%x refcnt %d", 4334 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 4335 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 4336 if (rc == IOCB_ERROR) { 4337 /* The additional lpfc_nlp_put will cause the following 4338 * lpfc_els_free_iocb routine to trigger the rlease of 4339 * the node. 4340 */ 4341 lpfc_els_free_iocb(phba, elsiocb); 4342 lpfc_nlp_put(ndlp); 4343 goto try_rdf; 4344 } 4345 return 0; 4346 try_rdf: 4347 phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM; 4348 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 4349 rc = lpfc_issue_els_rdf(vport, 0); 4350 return rc; 4351 } 4352 4353 /** 4354 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry 4355 * @vport: pointer to a host virtual N_Port data structure. 4356 * @nlp: pointer to a node-list data structure. 4357 * 4358 * This routine cancels the timer with a delayed IOCB-command retry for 4359 * a @vport's @ndlp. It stops the timer for the delayed function retrial and 4360 * removes the ELS retry event if it presents. In addition, if the 4361 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB 4362 * commands are sent for the @vport's nodes that require issuing discovery 4363 * ADISC. 4364 **/ 4365 void 4366 lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) 4367 { 4368 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4369 struct lpfc_work_evt *evtp; 4370 4371 if (!(nlp->nlp_flag & NLP_DELAY_TMO)) 4372 return; 4373 spin_lock_irq(&nlp->lock); 4374 nlp->nlp_flag &= ~NLP_DELAY_TMO; 4375 spin_unlock_irq(&nlp->lock); 4376 del_timer_sync(&nlp->nlp_delayfunc); 4377 nlp->nlp_last_elscmd = 0; 4378 if (!list_empty(&nlp->els_retry_evt.evt_listp)) { 4379 list_del_init(&nlp->els_retry_evt.evt_listp); 4380 /* Decrement nlp reference count held for the delayed retry */ 4381 evtp = &nlp->els_retry_evt; 4382 lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1); 4383 } 4384 if (nlp->nlp_flag & NLP_NPR_2B_DISC) { 4385 spin_lock_irq(&nlp->lock); 4386 nlp->nlp_flag &= ~NLP_NPR_2B_DISC; 4387 spin_unlock_irq(&nlp->lock); 4388 if (vport->num_disc_nodes) { 4389 if (vport->port_state < LPFC_VPORT_READY) { 4390 /* Check if there are more ADISCs to be sent */ 4391 lpfc_more_adisc(vport); 4392 } else { 4393 /* Check if there are more PLOGIs to be sent */ 4394 lpfc_more_plogi(vport); 4395 if (vport->num_disc_nodes == 0) { 4396 spin_lock_irq(shost->host_lock); 4397 vport->fc_flag &= ~FC_NDISC_ACTIVE; 4398 spin_unlock_irq(shost->host_lock); 4399 lpfc_can_disctmo(vport); 4400 lpfc_end_rscn(vport); 4401 } 4402 } 4403 } 4404 } 4405 return; 4406 } 4407 4408 /** 4409 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer 4410 * @t: pointer to the timer function associated data (ndlp). 4411 * 4412 * This routine is invoked by the ndlp delayed-function timer to check 4413 * whether there is any pending ELS retry event(s) with the node. If not, it 4414 * simply returns. Otherwise, if there is at least one ELS delayed event, it 4415 * adds the delayed events to the HBA work list and invokes the 4416 * lpfc_worker_wake_up() routine to wake up worker thread to process the 4417 * event. Note that lpfc_nlp_get() is called before posting the event to 4418 * the work list to hold reference count of ndlp so that it guarantees the 4419 * reference to ndlp will still be available when the worker thread gets 4420 * to the event associated with the ndlp. 4421 **/ 4422 void 4423 lpfc_els_retry_delay(struct timer_list *t) 4424 { 4425 struct lpfc_nodelist *ndlp = from_timer(ndlp, t, nlp_delayfunc); 4426 struct lpfc_vport *vport = ndlp->vport; 4427 struct lpfc_hba *phba = vport->phba; 4428 unsigned long flags; 4429 struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; 4430 4431 spin_lock_irqsave(&phba->hbalock, flags); 4432 if (!list_empty(&evtp->evt_listp)) { 4433 spin_unlock_irqrestore(&phba->hbalock, flags); 4434 return; 4435 } 4436 4437 /* We need to hold the node by incrementing the reference 4438 * count until the queued work is done 4439 */ 4440 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 4441 if (evtp->evt_arg1) { 4442 evtp->evt = LPFC_EVT_ELS_RETRY; 4443 list_add_tail(&evtp->evt_listp, &phba->work_list); 4444 lpfc_worker_wake_up(phba); 4445 } 4446 spin_unlock_irqrestore(&phba->hbalock, flags); 4447 return; 4448 } 4449 4450 /** 4451 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function 4452 * @ndlp: pointer to a node-list data structure. 4453 * 4454 * This routine is the worker-thread handler for processing the @ndlp delayed 4455 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves 4456 * the last ELS command from the associated ndlp and invokes the proper ELS 4457 * function according to the delayed ELS command to retry the command. 4458 **/ 4459 void 4460 lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) 4461 { 4462 struct lpfc_vport *vport = ndlp->vport; 4463 uint32_t cmd, retry; 4464 4465 spin_lock_irq(&ndlp->lock); 4466 cmd = ndlp->nlp_last_elscmd; 4467 ndlp->nlp_last_elscmd = 0; 4468 4469 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 4470 spin_unlock_irq(&ndlp->lock); 4471 return; 4472 } 4473 4474 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 4475 spin_unlock_irq(&ndlp->lock); 4476 /* 4477 * If a discovery event readded nlp_delayfunc after timer 4478 * firing and before processing the timer, cancel the 4479 * nlp_delayfunc. 4480 */ 4481 del_timer_sync(&ndlp->nlp_delayfunc); 4482 retry = ndlp->nlp_retry; 4483 ndlp->nlp_retry = 0; 4484 4485 switch (cmd) { 4486 case ELS_CMD_FLOGI: 4487 lpfc_issue_els_flogi(vport, ndlp, retry); 4488 break; 4489 case ELS_CMD_PLOGI: 4490 if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) { 4491 ndlp->nlp_prev_state = ndlp->nlp_state; 4492 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 4493 } 4494 break; 4495 case ELS_CMD_ADISC: 4496 if (!lpfc_issue_els_adisc(vport, ndlp, retry)) { 4497 ndlp->nlp_prev_state = ndlp->nlp_state; 4498 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 4499 } 4500 break; 4501 case ELS_CMD_PRLI: 4502 case ELS_CMD_NVMEPRLI: 4503 if (!lpfc_issue_els_prli(vport, ndlp, retry)) { 4504 ndlp->nlp_prev_state = ndlp->nlp_state; 4505 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 4506 } 4507 break; 4508 case ELS_CMD_LOGO: 4509 if (!lpfc_issue_els_logo(vport, ndlp, retry)) { 4510 ndlp->nlp_prev_state = ndlp->nlp_state; 4511 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); 4512 } 4513 break; 4514 case ELS_CMD_FDISC: 4515 if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)) 4516 lpfc_issue_els_fdisc(vport, ndlp, retry); 4517 break; 4518 } 4519 return; 4520 } 4521 4522 /** 4523 * lpfc_link_reset - Issue link reset 4524 * @vport: pointer to a virtual N_Port data structure. 4525 * 4526 * This routine performs link reset by sending INIT_LINK mailbox command. 4527 * For SLI-3 adapter, link attention interrupt is enabled before issuing 4528 * INIT_LINK mailbox command. 4529 * 4530 * Return code 4531 * 0 - Link reset initiated successfully 4532 * 1 - Failed to initiate link reset 4533 **/ 4534 int 4535 lpfc_link_reset(struct lpfc_vport *vport) 4536 { 4537 struct lpfc_hba *phba = vport->phba; 4538 LPFC_MBOXQ_t *mbox; 4539 uint32_t control; 4540 int rc; 4541 4542 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 4543 "2851 Attempt link reset\n"); 4544 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4545 if (!mbox) { 4546 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4547 "2852 Failed to allocate mbox memory"); 4548 return 1; 4549 } 4550 4551 /* Enable Link attention interrupts */ 4552 if (phba->sli_rev <= LPFC_SLI_REV3) { 4553 spin_lock_irq(&phba->hbalock); 4554 phba->sli.sli_flag |= LPFC_PROCESS_LA; 4555 control = readl(phba->HCregaddr); 4556 control |= HC_LAINT_ENA; 4557 writel(control, phba->HCregaddr); 4558 readl(phba->HCregaddr); /* flush */ 4559 spin_unlock_irq(&phba->hbalock); 4560 } 4561 4562 lpfc_init_link(phba, mbox, phba->cfg_topology, 4563 phba->cfg_link_speed); 4564 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4565 mbox->vport = vport; 4566 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4567 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 4568 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4569 "2853 Failed to issue INIT_LINK " 4570 "mbox command, rc:x%x\n", rc); 4571 mempool_free(mbox, phba->mbox_mem_pool); 4572 return 1; 4573 } 4574 4575 return 0; 4576 } 4577 4578 /** 4579 * lpfc_els_retry - Make retry decision on an els command iocb 4580 * @phba: pointer to lpfc hba data structure. 4581 * @cmdiocb: pointer to lpfc command iocb data structure. 4582 * @rspiocb: pointer to lpfc response iocb data structure. 4583 * 4584 * This routine makes a retry decision on an ELS command IOCB, which has 4585 * failed. The following ELS IOCBs use this function for retrying the command 4586 * when previously issued command responsed with error status: FLOGI, PLOGI, 4587 * PRLI, ADISC and FDISC. Based on the ELS command type and the 4588 * returned error status, it makes the decision whether a retry shall be 4589 * issued for the command, and whether a retry shall be made immediately or 4590 * delayed. In the former case, the corresponding ELS command issuing-function 4591 * is called to retry the command. In the later case, the ELS command shall 4592 * be posted to the ndlp delayed event and delayed function timer set to the 4593 * ndlp for the delayed command issusing. 4594 * 4595 * Return code 4596 * 0 - No retry of els command is made 4597 * 1 - Immediate or delayed retry of els command is made 4598 **/ 4599 static int 4600 lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 4601 struct lpfc_iocbq *rspiocb) 4602 { 4603 struct lpfc_vport *vport = cmdiocb->vport; 4604 union lpfc_wqe128 *irsp = &rspiocb->wqe; 4605 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 4606 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 4607 uint32_t *elscmd; 4608 struct ls_rjt stat; 4609 int retry = 0, maxretry = lpfc_max_els_tries, delay = 0; 4610 int logerr = 0; 4611 uint32_t cmd = 0; 4612 uint32_t did; 4613 int link_reset = 0, rc; 4614 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 4615 u32 ulp_word4 = get_job_word4(phba, rspiocb); 4616 4617 4618 /* Note: cmd_dmabuf may be 0 for internal driver abort 4619 * of delays ELS command. 4620 */ 4621 4622 if (pcmd && pcmd->virt) { 4623 elscmd = (uint32_t *) (pcmd->virt); 4624 cmd = *elscmd++; 4625 } 4626 4627 if (ndlp) 4628 did = ndlp->nlp_DID; 4629 else { 4630 /* We should only hit this case for retrying PLOGI */ 4631 did = get_job_els_rsp64_did(phba, rspiocb); 4632 ndlp = lpfc_findnode_did(vport, did); 4633 if (!ndlp && (cmd != ELS_CMD_PLOGI)) 4634 return 0; 4635 } 4636 4637 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4638 "Retry ELS: wd7:x%x wd4:x%x did:x%x", 4639 *(((uint32_t *)irsp) + 7), ulp_word4, did); 4640 4641 switch (ulp_status) { 4642 case IOSTAT_FCP_RSP_ERROR: 4643 break; 4644 case IOSTAT_REMOTE_STOP: 4645 if (phba->sli_rev == LPFC_SLI_REV4) { 4646 /* This IO was aborted by the target, we don't 4647 * know the rxid and because we did not send the 4648 * ABTS we cannot generate and RRQ. 4649 */ 4650 lpfc_set_rrq_active(phba, ndlp, 4651 cmdiocb->sli4_lxritag, 0, 0); 4652 } 4653 break; 4654 case IOSTAT_LOCAL_REJECT: 4655 switch ((ulp_word4 & IOERR_PARAM_MASK)) { 4656 case IOERR_LOOP_OPEN_FAILURE: 4657 if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) 4658 delay = 1000; 4659 retry = 1; 4660 break; 4661 4662 case IOERR_ILLEGAL_COMMAND: 4663 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4664 "0124 Retry illegal cmd x%x " 4665 "retry:x%x delay:x%x\n", 4666 cmd, cmdiocb->retry, delay); 4667 retry = 1; 4668 /* All command's retry policy */ 4669 maxretry = 8; 4670 if (cmdiocb->retry > 2) 4671 delay = 1000; 4672 break; 4673 4674 case IOERR_NO_RESOURCES: 4675 logerr = 1; /* HBA out of resources */ 4676 retry = 1; 4677 if (cmdiocb->retry > 100) 4678 delay = 100; 4679 maxretry = 250; 4680 break; 4681 4682 case IOERR_ILLEGAL_FRAME: 4683 delay = 100; 4684 retry = 1; 4685 break; 4686 4687 case IOERR_INVALID_RPI: 4688 if (cmd == ELS_CMD_PLOGI && 4689 did == NameServer_DID) { 4690 /* Continue forever if plogi to */ 4691 /* the nameserver fails */ 4692 maxretry = 0; 4693 delay = 100; 4694 } else if (cmd == ELS_CMD_PRLI && 4695 ndlp->nlp_state != NLP_STE_PRLI_ISSUE) { 4696 /* State-command disagreement. The PRLI was 4697 * failed with an invalid rpi meaning there 4698 * some unexpected state change. Don't retry. 4699 */ 4700 maxretry = 0; 4701 retry = 0; 4702 break; 4703 } 4704 retry = 1; 4705 break; 4706 4707 case IOERR_SEQUENCE_TIMEOUT: 4708 if (cmd == ELS_CMD_PLOGI && 4709 did == NameServer_DID && 4710 (cmdiocb->retry + 1) == maxretry) { 4711 /* Reset the Link */ 4712 link_reset = 1; 4713 break; 4714 } 4715 retry = 1; 4716 delay = 100; 4717 break; 4718 case IOERR_SLI_ABORTED: 4719 /* Retry ELS PLOGI command? 4720 * Possibly the rport just wasn't ready. 4721 */ 4722 if (cmd == ELS_CMD_PLOGI) { 4723 /* No retry if state change */ 4724 if (ndlp && 4725 ndlp->nlp_state != NLP_STE_PLOGI_ISSUE) 4726 goto out_retry; 4727 retry = 1; 4728 maxretry = 2; 4729 } 4730 break; 4731 } 4732 break; 4733 4734 case IOSTAT_NPORT_RJT: 4735 case IOSTAT_FABRIC_RJT: 4736 if (ulp_word4 & RJT_UNAVAIL_TEMP) { 4737 retry = 1; 4738 break; 4739 } 4740 break; 4741 4742 case IOSTAT_NPORT_BSY: 4743 case IOSTAT_FABRIC_BSY: 4744 logerr = 1; /* Fabric / Remote NPort out of resources */ 4745 retry = 1; 4746 break; 4747 4748 case IOSTAT_LS_RJT: 4749 stat.un.ls_rjt_error_be = cpu_to_be32(ulp_word4); 4750 /* Added for Vendor specifc support 4751 * Just keep retrying for these Rsn / Exp codes 4752 */ 4753 if ((vport->fc_flag & FC_PT2PT) && 4754 cmd == ELS_CMD_NVMEPRLI) { 4755 switch (stat.un.b.lsRjtRsnCode) { 4756 case LSRJT_UNABLE_TPC: 4757 case LSRJT_INVALID_CMD: 4758 case LSRJT_LOGICAL_ERR: 4759 case LSRJT_CMD_UNSUPPORTED: 4760 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS, 4761 "0168 NVME PRLI LS_RJT " 4762 "reason %x port doesn't " 4763 "support NVME, disabling NVME\n", 4764 stat.un.b.lsRjtRsnCode); 4765 retry = 0; 4766 vport->fc_flag |= FC_PT2PT_NO_NVME; 4767 goto out_retry; 4768 } 4769 } 4770 switch (stat.un.b.lsRjtRsnCode) { 4771 case LSRJT_UNABLE_TPC: 4772 /* Special case for PRLI LS_RJTs. Recall that lpfc 4773 * uses a single routine to issue both PRLI FC4 types. 4774 * If the PRLI is rejected because that FC4 type 4775 * isn't really supported, don't retry and cause 4776 * multiple transport registrations. Otherwise, parse 4777 * the reason code/reason code explanation and take the 4778 * appropriate action. 4779 */ 4780 lpfc_printf_vlog(vport, KERN_INFO, 4781 LOG_DISCOVERY | LOG_ELS | LOG_NODE, 4782 "0153 ELS cmd x%x LS_RJT by x%x. " 4783 "RsnCode x%x RsnCodeExp x%x\n", 4784 cmd, did, stat.un.b.lsRjtRsnCode, 4785 stat.un.b.lsRjtRsnCodeExp); 4786 4787 switch (stat.un.b.lsRjtRsnCodeExp) { 4788 case LSEXP_CANT_GIVE_DATA: 4789 case LSEXP_CMD_IN_PROGRESS: 4790 if (cmd == ELS_CMD_PLOGI) { 4791 delay = 1000; 4792 maxretry = 48; 4793 } 4794 retry = 1; 4795 break; 4796 case LSEXP_REQ_UNSUPPORTED: 4797 case LSEXP_NO_RSRC_ASSIGN: 4798 /* These explanation codes get no retry. */ 4799 if (cmd == ELS_CMD_PRLI || 4800 cmd == ELS_CMD_NVMEPRLI) 4801 break; 4802 fallthrough; 4803 default: 4804 /* Limit the delay and retry action to a limited 4805 * cmd set. There are other ELS commands where 4806 * a retry is not expected. 4807 */ 4808 if (cmd == ELS_CMD_PLOGI || 4809 cmd == ELS_CMD_PRLI || 4810 cmd == ELS_CMD_NVMEPRLI) { 4811 delay = 1000; 4812 maxretry = lpfc_max_els_tries + 1; 4813 retry = 1; 4814 } 4815 break; 4816 } 4817 4818 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 4819 (cmd == ELS_CMD_FDISC) && 4820 (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){ 4821 lpfc_printf_vlog(vport, KERN_ERR, 4822 LOG_TRACE_EVENT, 4823 "0125 FDISC Failed (x%x). " 4824 "Fabric out of resources\n", 4825 stat.un.lsRjtError); 4826 lpfc_vport_set_state(vport, 4827 FC_VPORT_NO_FABRIC_RSCS); 4828 } 4829 break; 4830 4831 case LSRJT_LOGICAL_BSY: 4832 if ((cmd == ELS_CMD_PLOGI) || 4833 (cmd == ELS_CMD_PRLI) || 4834 (cmd == ELS_CMD_NVMEPRLI)) { 4835 delay = 1000; 4836 maxretry = 48; 4837 } else if (cmd == ELS_CMD_FDISC) { 4838 /* FDISC retry policy */ 4839 maxretry = 48; 4840 if (cmdiocb->retry >= 32) 4841 delay = 1000; 4842 } 4843 retry = 1; 4844 break; 4845 4846 case LSRJT_LOGICAL_ERR: 4847 /* There are some cases where switches return this 4848 * error when they are not ready and should be returning 4849 * Logical Busy. We should delay every time. 4850 */ 4851 if (cmd == ELS_CMD_FDISC && 4852 stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) { 4853 maxretry = 3; 4854 delay = 1000; 4855 retry = 1; 4856 } else if (cmd == ELS_CMD_FLOGI && 4857 stat.un.b.lsRjtRsnCodeExp == 4858 LSEXP_NOTHING_MORE) { 4859 vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf; 4860 retry = 1; 4861 lpfc_printf_vlog(vport, KERN_ERR, 4862 LOG_TRACE_EVENT, 4863 "0820 FLOGI Failed (x%x). " 4864 "BBCredit Not Supported\n", 4865 stat.un.lsRjtError); 4866 } 4867 break; 4868 4869 case LSRJT_PROTOCOL_ERR: 4870 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 4871 (cmd == ELS_CMD_FDISC) && 4872 ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) || 4873 (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) 4874 ) { 4875 lpfc_printf_vlog(vport, KERN_ERR, 4876 LOG_TRACE_EVENT, 4877 "0122 FDISC Failed (x%x). " 4878 "Fabric Detected Bad WWN\n", 4879 stat.un.lsRjtError); 4880 lpfc_vport_set_state(vport, 4881 FC_VPORT_FABRIC_REJ_WWN); 4882 } 4883 break; 4884 case LSRJT_VENDOR_UNIQUE: 4885 if ((stat.un.b.vendorUnique == 0x45) && 4886 (cmd == ELS_CMD_FLOGI)) { 4887 goto out_retry; 4888 } 4889 break; 4890 case LSRJT_CMD_UNSUPPORTED: 4891 /* lpfc nvmet returns this type of LS_RJT when it 4892 * receives an FCP PRLI because lpfc nvmet only 4893 * support NVME. ELS request is terminated for FCP4 4894 * on this rport. 4895 */ 4896 if (stat.un.b.lsRjtRsnCodeExp == 4897 LSEXP_REQ_UNSUPPORTED) { 4898 if (cmd == ELS_CMD_PRLI) 4899 goto out_retry; 4900 } 4901 break; 4902 } 4903 break; 4904 4905 case IOSTAT_INTERMED_RSP: 4906 case IOSTAT_BA_RJT: 4907 break; 4908 4909 default: 4910 break; 4911 } 4912 4913 if (link_reset) { 4914 rc = lpfc_link_reset(vport); 4915 if (rc) { 4916 /* Do not give up. Retry PLOGI one more time and attempt 4917 * link reset if PLOGI fails again. 4918 */ 4919 retry = 1; 4920 delay = 100; 4921 goto out_retry; 4922 } 4923 return 1; 4924 } 4925 4926 if (did == FDMI_DID) 4927 retry = 1; 4928 4929 if ((cmd == ELS_CMD_FLOGI) && 4930 (phba->fc_topology != LPFC_TOPOLOGY_LOOP) && 4931 !lpfc_error_lost_link(ulp_status, ulp_word4)) { 4932 /* FLOGI retry policy */ 4933 retry = 1; 4934 /* retry FLOGI forever */ 4935 if (phba->link_flag != LS_LOOPBACK_MODE) 4936 maxretry = 0; 4937 else 4938 maxretry = 2; 4939 4940 if (cmdiocb->retry >= 100) 4941 delay = 5000; 4942 else if (cmdiocb->retry >= 32) 4943 delay = 1000; 4944 } else if ((cmd == ELS_CMD_FDISC) && 4945 !lpfc_error_lost_link(ulp_status, ulp_word4)) { 4946 /* retry FDISCs every second up to devloss */ 4947 retry = 1; 4948 maxretry = vport->cfg_devloss_tmo; 4949 delay = 1000; 4950 } 4951 4952 cmdiocb->retry++; 4953 if (maxretry && (cmdiocb->retry >= maxretry)) { 4954 phba->fc_stat.elsRetryExceeded++; 4955 retry = 0; 4956 } 4957 4958 if ((vport->load_flag & FC_UNLOADING) != 0) 4959 retry = 0; 4960 4961 out_retry: 4962 if (retry) { 4963 if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) { 4964 /* Stop retrying PLOGI and FDISC if in FCF discovery */ 4965 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4966 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 4967 "2849 Stop retry ELS command " 4968 "x%x to remote NPORT x%x, " 4969 "Data: x%x x%x\n", cmd, did, 4970 cmdiocb->retry, delay); 4971 return 0; 4972 } 4973 } 4974 4975 /* Retry ELS command <elsCmd> to remote NPORT <did> */ 4976 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 4977 "0107 Retry ELS command x%x to remote " 4978 "NPORT x%x Data: x%x x%x\n", 4979 cmd, did, cmdiocb->retry, delay); 4980 4981 if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) && 4982 ((ulp_status != IOSTAT_LOCAL_REJECT) || 4983 ((ulp_word4 & IOERR_PARAM_MASK) != 4984 IOERR_NO_RESOURCES))) { 4985 /* Don't reset timer for no resources */ 4986 4987 /* If discovery / RSCN timer is running, reset it */ 4988 if (timer_pending(&vport->fc_disctmo) || 4989 (vport->fc_flag & FC_RSCN_MODE)) 4990 lpfc_set_disctmo(vport); 4991 } 4992 4993 phba->fc_stat.elsXmitRetry++; 4994 if (ndlp && delay) { 4995 phba->fc_stat.elsDelayRetry++; 4996 ndlp->nlp_retry = cmdiocb->retry; 4997 4998 /* delay is specified in milliseconds */ 4999 mod_timer(&ndlp->nlp_delayfunc, 5000 jiffies + msecs_to_jiffies(delay)); 5001 spin_lock_irq(&ndlp->lock); 5002 ndlp->nlp_flag |= NLP_DELAY_TMO; 5003 spin_unlock_irq(&ndlp->lock); 5004 5005 ndlp->nlp_prev_state = ndlp->nlp_state; 5006 if ((cmd == ELS_CMD_PRLI) || 5007 (cmd == ELS_CMD_NVMEPRLI)) 5008 lpfc_nlp_set_state(vport, ndlp, 5009 NLP_STE_PRLI_ISSUE); 5010 else if (cmd != ELS_CMD_ADISC) 5011 lpfc_nlp_set_state(vport, ndlp, 5012 NLP_STE_NPR_NODE); 5013 ndlp->nlp_last_elscmd = cmd; 5014 5015 return 1; 5016 } 5017 switch (cmd) { 5018 case ELS_CMD_FLOGI: 5019 lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry); 5020 return 1; 5021 case ELS_CMD_FDISC: 5022 lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry); 5023 return 1; 5024 case ELS_CMD_PLOGI: 5025 if (ndlp) { 5026 ndlp->nlp_prev_state = ndlp->nlp_state; 5027 lpfc_nlp_set_state(vport, ndlp, 5028 NLP_STE_PLOGI_ISSUE); 5029 } 5030 lpfc_issue_els_plogi(vport, did, cmdiocb->retry); 5031 return 1; 5032 case ELS_CMD_ADISC: 5033 ndlp->nlp_prev_state = ndlp->nlp_state; 5034 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 5035 lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry); 5036 return 1; 5037 case ELS_CMD_PRLI: 5038 case ELS_CMD_NVMEPRLI: 5039 ndlp->nlp_prev_state = ndlp->nlp_state; 5040 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 5041 lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry); 5042 return 1; 5043 case ELS_CMD_LOGO: 5044 ndlp->nlp_prev_state = ndlp->nlp_state; 5045 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); 5046 lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry); 5047 return 1; 5048 } 5049 } 5050 /* No retry ELS command <elsCmd> to remote NPORT <did> */ 5051 if (logerr) { 5052 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5053 "0137 No retry ELS command x%x to remote " 5054 "NPORT x%x: Out of Resources: Error:x%x/%x\n", 5055 cmd, did, ulp_status, 5056 ulp_word4); 5057 } 5058 else { 5059 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5060 "0108 No retry ELS command x%x to remote " 5061 "NPORT x%x Retried:%d Error:x%x/%x\n", 5062 cmd, did, cmdiocb->retry, ulp_status, 5063 ulp_word4); 5064 } 5065 return 0; 5066 } 5067 5068 /** 5069 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb 5070 * @phba: pointer to lpfc hba data structure. 5071 * @buf_ptr1: pointer to the lpfc DMA buffer data structure. 5072 * 5073 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s) 5074 * associated with a command IOCB back to the lpfc DMA buffer pool. It first 5075 * checks to see whether there is a lpfc DMA buffer associated with the 5076 * response of the command IOCB. If so, it will be released before releasing 5077 * the lpfc DMA buffer associated with the IOCB itself. 5078 * 5079 * Return code 5080 * 0 - Successfully released lpfc DMA buffer (currently, always return 0) 5081 **/ 5082 static int 5083 lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1) 5084 { 5085 struct lpfc_dmabuf *buf_ptr; 5086 5087 /* Free the response before processing the command. */ 5088 if (!list_empty(&buf_ptr1->list)) { 5089 list_remove_head(&buf_ptr1->list, buf_ptr, 5090 struct lpfc_dmabuf, 5091 list); 5092 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 5093 kfree(buf_ptr); 5094 } 5095 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); 5096 kfree(buf_ptr1); 5097 return 0; 5098 } 5099 5100 /** 5101 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl 5102 * @phba: pointer to lpfc hba data structure. 5103 * @buf_ptr: pointer to the lpfc dma buffer data structure. 5104 * 5105 * This routine releases the lpfc Direct Memory Access (DMA) buffer 5106 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer 5107 * pool. 5108 * 5109 * Return code 5110 * 0 - Successfully released lpfc DMA buffer (currently, always return 0) 5111 **/ 5112 static int 5113 lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr) 5114 { 5115 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 5116 kfree(buf_ptr); 5117 return 0; 5118 } 5119 5120 /** 5121 * lpfc_els_free_iocb - Free a command iocb and its associated resources 5122 * @phba: pointer to lpfc hba data structure. 5123 * @elsiocb: pointer to lpfc els command iocb data structure. 5124 * 5125 * This routine frees a command IOCB and its associated resources. The 5126 * command IOCB data structure contains the reference to various associated 5127 * resources, these fields must be set to NULL if the associated reference 5128 * not present: 5129 * cmd_dmabuf - reference to cmd. 5130 * cmd_dmabuf->next - reference to rsp 5131 * rsp_dmabuf - unused 5132 * bpl_dmabuf - reference to bpl 5133 * 5134 * It first properly decrements the reference count held on ndlp for the 5135 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not 5136 * set, it invokes the lpfc_els_free_data() routine to release the Direct 5137 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it 5138 * adds the DMA buffer the @phba data structure for the delayed release. 5139 * If reference to the Buffer Pointer List (BPL) is present, the 5140 * lpfc_els_free_bpl() routine is invoked to release the DMA memory 5141 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is 5142 * invoked to release the IOCB data structure back to @phba IOCBQ list. 5143 * 5144 * Return code 5145 * 0 - Success (currently, always return 0) 5146 **/ 5147 int 5148 lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) 5149 { 5150 struct lpfc_dmabuf *buf_ptr, *buf_ptr1; 5151 5152 /* The I/O iocb is complete. Clear the node and first dmbuf */ 5153 elsiocb->ndlp = NULL; 5154 5155 /* cmd_dmabuf = cmd, cmd_dmabuf->next = rsp, bpl_dmabuf = bpl */ 5156 if (elsiocb->cmd_dmabuf) { 5157 if (elsiocb->cmd_flag & LPFC_DELAY_MEM_FREE) { 5158 /* Firmware could still be in progress of DMAing 5159 * payload, so don't free data buffer till after 5160 * a hbeat. 5161 */ 5162 elsiocb->cmd_flag &= ~LPFC_DELAY_MEM_FREE; 5163 buf_ptr = elsiocb->cmd_dmabuf; 5164 elsiocb->cmd_dmabuf = NULL; 5165 if (buf_ptr) { 5166 buf_ptr1 = NULL; 5167 spin_lock_irq(&phba->hbalock); 5168 if (!list_empty(&buf_ptr->list)) { 5169 list_remove_head(&buf_ptr->list, 5170 buf_ptr1, struct lpfc_dmabuf, 5171 list); 5172 INIT_LIST_HEAD(&buf_ptr1->list); 5173 list_add_tail(&buf_ptr1->list, 5174 &phba->elsbuf); 5175 phba->elsbuf_cnt++; 5176 } 5177 INIT_LIST_HEAD(&buf_ptr->list); 5178 list_add_tail(&buf_ptr->list, &phba->elsbuf); 5179 phba->elsbuf_cnt++; 5180 spin_unlock_irq(&phba->hbalock); 5181 } 5182 } else { 5183 buf_ptr1 = elsiocb->cmd_dmabuf; 5184 lpfc_els_free_data(phba, buf_ptr1); 5185 elsiocb->cmd_dmabuf = NULL; 5186 } 5187 } 5188 5189 if (elsiocb->bpl_dmabuf) { 5190 buf_ptr = elsiocb->bpl_dmabuf; 5191 lpfc_els_free_bpl(phba, buf_ptr); 5192 elsiocb->bpl_dmabuf = NULL; 5193 } 5194 lpfc_sli_release_iocbq(phba, elsiocb); 5195 return 0; 5196 } 5197 5198 /** 5199 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response 5200 * @phba: pointer to lpfc hba data structure. 5201 * @cmdiocb: pointer to lpfc command iocb data structure. 5202 * @rspiocb: pointer to lpfc response iocb data structure. 5203 * 5204 * This routine is the completion callback function to the Logout (LOGO) 5205 * Accept (ACC) Response ELS command. This routine is invoked to indicate 5206 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to 5207 * release the ndlp if it has the last reference remaining (reference count 5208 * is 1). If succeeded (meaning ndlp released), it sets the iocb ndlp 5209 * field to NULL to inform the following lpfc_els_free_iocb() routine no 5210 * ndlp reference count needs to be decremented. Otherwise, the ndlp 5211 * reference use-count shall be decremented by the lpfc_els_free_iocb() 5212 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the 5213 * IOCB data structure. 5214 **/ 5215 static void 5216 lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 5217 struct lpfc_iocbq *rspiocb) 5218 { 5219 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 5220 struct lpfc_vport *vport = cmdiocb->vport; 5221 u32 ulp_status, ulp_word4; 5222 5223 ulp_status = get_job_ulpstatus(phba, rspiocb); 5224 ulp_word4 = get_job_word4(phba, rspiocb); 5225 5226 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5227 "ACC LOGO cmpl: status:x%x/x%x did:x%x", 5228 ulp_status, ulp_word4, ndlp->nlp_DID); 5229 /* ACC to LOGO completes to NPort <nlp_DID> */ 5230 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5231 "0109 ACC to LOGO completes to NPort x%x refcnt %d " 5232 "Data: x%x x%x x%x\n", 5233 ndlp->nlp_DID, kref_read(&ndlp->kref), ndlp->nlp_flag, 5234 ndlp->nlp_state, ndlp->nlp_rpi); 5235 5236 /* This clause allows the LOGO ACC to complete and free resources 5237 * for the Fabric Domain Controller. It does deliberately skip 5238 * the unreg_rpi and release rpi because some fabrics send RDP 5239 * requests after logging out from the initiator. 5240 */ 5241 if (ndlp->nlp_type & NLP_FABRIC && 5242 ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK)) 5243 goto out; 5244 5245 if (ndlp->nlp_state == NLP_STE_NPR_NODE) { 5246 /* If PLOGI is being retried, PLOGI completion will cleanup the 5247 * node. The NLP_NPR_2B_DISC flag needs to be retained to make 5248 * progress on nodes discovered from last RSCN. 5249 */ 5250 if ((ndlp->nlp_flag & NLP_DELAY_TMO) && 5251 (ndlp->nlp_last_elscmd == ELS_CMD_PLOGI)) 5252 goto out; 5253 5254 /* NPort Recovery mode or node is just allocated */ 5255 if (!lpfc_nlp_not_used(ndlp)) { 5256 /* A LOGO is completing and the node is in NPR state. 5257 * Just unregister the RPI because the node is still 5258 * required. 5259 */ 5260 lpfc_unreg_rpi(vport, ndlp); 5261 } else { 5262 /* Indicate the node has already released, should 5263 * not reference to it from within lpfc_els_free_iocb. 5264 */ 5265 cmdiocb->ndlp = NULL; 5266 } 5267 } 5268 out: 5269 /* 5270 * The driver received a LOGO from the rport and has ACK'd it. 5271 * At this point, the driver is done so release the IOCB 5272 */ 5273 lpfc_els_free_iocb(phba, cmdiocb); 5274 lpfc_nlp_put(ndlp); 5275 } 5276 5277 /** 5278 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd 5279 * @phba: pointer to lpfc hba data structure. 5280 * @pmb: pointer to the driver internal queue element for mailbox command. 5281 * 5282 * This routine is the completion callback function for unregister default 5283 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases 5284 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and 5285 * decrements the ndlp reference count held for this completion callback 5286 * function. After that, it invokes the lpfc_nlp_not_used() to check 5287 * whether there is only one reference left on the ndlp. If so, it will 5288 * perform one more decrement and trigger the release of the ndlp. 5289 **/ 5290 void 5291 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5292 { 5293 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; 5294 u32 mbx_flag = pmb->mbox_flag; 5295 u32 mbx_cmd = pmb->u.mb.mbxCommand; 5296 5297 if (ndlp) { 5298 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 5299 "0006 rpi x%x DID:%x flg:%x %d x%px " 5300 "mbx_cmd x%x mbx_flag x%x x%px\n", 5301 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5302 kref_read(&ndlp->kref), ndlp, mbx_cmd, 5303 mbx_flag, pmb); 5304 5305 /* This ends the default/temporary RPI cleanup logic for this 5306 * ndlp and the node and rpi needs to be released. Free the rpi 5307 * first on an UNREG_LOGIN and then release the final 5308 * references. 5309 */ 5310 spin_lock_irq(&ndlp->lock); 5311 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 5312 if (mbx_cmd == MBX_UNREG_LOGIN) 5313 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5314 spin_unlock_irq(&ndlp->lock); 5315 lpfc_nlp_put(ndlp); 5316 lpfc_drop_node(ndlp->vport, ndlp); 5317 } 5318 5319 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 5320 } 5321 5322 /** 5323 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd 5324 * @phba: pointer to lpfc hba data structure. 5325 * @cmdiocb: pointer to lpfc command iocb data structure. 5326 * @rspiocb: pointer to lpfc response iocb data structure. 5327 * 5328 * This routine is the completion callback function for ELS Response IOCB 5329 * command. In normal case, this callback function just properly sets the 5330 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference 5331 * field in the command IOCB is not NULL, the referred mailbox command will 5332 * be send out, and then invokes the lpfc_els_free_iocb() routine to release 5333 * the IOCB. 5334 **/ 5335 static void 5336 lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 5337 struct lpfc_iocbq *rspiocb) 5338 { 5339 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 5340 struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL; 5341 struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL; 5342 IOCB_t *irsp; 5343 LPFC_MBOXQ_t *mbox = NULL; 5344 u32 ulp_status, ulp_word4, tmo, did, iotag; 5345 5346 if (!vport) { 5347 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 5348 "3177 ELS response failed\n"); 5349 goto out; 5350 } 5351 if (cmdiocb->context_un.mbox) 5352 mbox = cmdiocb->context_un.mbox; 5353 5354 ulp_status = get_job_ulpstatus(phba, rspiocb); 5355 ulp_word4 = get_job_word4(phba, rspiocb); 5356 did = get_job_els_rsp64_did(phba, cmdiocb); 5357 5358 if (phba->sli_rev == LPFC_SLI_REV4) { 5359 tmo = get_wqe_tmo(cmdiocb); 5360 iotag = get_wqe_reqtag(cmdiocb); 5361 } else { 5362 irsp = &rspiocb->iocb; 5363 tmo = irsp->ulpTimeout; 5364 iotag = irsp->ulpIoTag; 5365 } 5366 5367 /* Check to see if link went down during discovery */ 5368 if (!ndlp || lpfc_els_chk_latt(vport)) { 5369 if (mbox) 5370 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 5371 goto out; 5372 } 5373 5374 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5375 "ELS rsp cmpl: status:x%x/x%x did:x%x", 5376 ulp_status, ulp_word4, did); 5377 /* ELS response tag <ulpIoTag> completes */ 5378 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5379 "0110 ELS response tag x%x completes " 5380 "Data: x%x x%x x%x x%x x%x x%x x%x x%x %p %p\n", 5381 iotag, ulp_status, ulp_word4, tmo, 5382 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5383 ndlp->nlp_rpi, kref_read(&ndlp->kref), mbox, ndlp); 5384 if (mbox) { 5385 if (ulp_status == 0 5386 && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) { 5387 if (!lpfc_unreg_rpi(vport, ndlp) && 5388 (!(vport->fc_flag & FC_PT2PT))) { 5389 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5390 ndlp->nlp_state == 5391 NLP_STE_REG_LOGIN_ISSUE) { 5392 lpfc_printf_vlog(vport, KERN_INFO, 5393 LOG_DISCOVERY, 5394 "0314 PLOGI recov " 5395 "DID x%x " 5396 "Data: x%x x%x x%x\n", 5397 ndlp->nlp_DID, 5398 ndlp->nlp_state, 5399 ndlp->nlp_rpi, 5400 ndlp->nlp_flag); 5401 goto out_free_mbox; 5402 } 5403 } 5404 5405 /* Increment reference count to ndlp to hold the 5406 * reference to ndlp for the callback function. 5407 */ 5408 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 5409 if (!mbox->ctx_ndlp) 5410 goto out_free_mbox; 5411 5412 mbox->vport = vport; 5413 if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) { 5414 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 5415 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 5416 } 5417 else { 5418 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 5419 ndlp->nlp_prev_state = ndlp->nlp_state; 5420 lpfc_nlp_set_state(vport, ndlp, 5421 NLP_STE_REG_LOGIN_ISSUE); 5422 } 5423 5424 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 5425 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 5426 != MBX_NOT_FINISHED) 5427 goto out; 5428 5429 /* Decrement the ndlp reference count we 5430 * set for this failed mailbox command. 5431 */ 5432 lpfc_nlp_put(ndlp); 5433 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 5434 5435 /* ELS rsp: Cannot issue reg_login for <NPortid> */ 5436 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5437 "0138 ELS rsp: Cannot issue reg_login for x%x " 5438 "Data: x%x x%x x%x\n", 5439 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5440 ndlp->nlp_rpi); 5441 } 5442 out_free_mbox: 5443 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 5444 } 5445 out: 5446 if (ndlp && shost) { 5447 spin_lock_irq(&ndlp->lock); 5448 if (mbox) 5449 ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN; 5450 ndlp->nlp_flag &= ~NLP_RM_DFLT_RPI; 5451 spin_unlock_irq(&ndlp->lock); 5452 } 5453 5454 /* An SLI4 NPIV instance wants to drop the node at this point under 5455 * these conditions and release the RPI. 5456 */ 5457 if (phba->sli_rev == LPFC_SLI_REV4 && 5458 (vport && vport->port_type == LPFC_NPIV_PORT) && 5459 !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD) && 5460 ndlp->nlp_flag & NLP_RELEASE_RPI) { 5461 if (ndlp->nlp_state != NLP_STE_PLOGI_ISSUE && 5462 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 5463 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 5464 spin_lock_irq(&ndlp->lock); 5465 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 5466 ndlp->nlp_flag &= ~NLP_RELEASE_RPI; 5467 spin_unlock_irq(&ndlp->lock); 5468 lpfc_drop_node(vport, ndlp); 5469 } 5470 } 5471 5472 /* Release the originating I/O reference. */ 5473 lpfc_els_free_iocb(phba, cmdiocb); 5474 lpfc_nlp_put(ndlp); 5475 return; 5476 } 5477 5478 /** 5479 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command 5480 * @vport: pointer to a host virtual N_Port data structure. 5481 * @flag: the els command code to be accepted. 5482 * @oldiocb: pointer to the original lpfc command iocb data structure. 5483 * @ndlp: pointer to a node-list data structure. 5484 * @mbox: pointer to the driver internal queue element for mailbox command. 5485 * 5486 * This routine prepares and issues an Accept (ACC) response IOCB 5487 * command. It uses the @flag to properly set up the IOCB field for the 5488 * specific ACC response command to be issued and invokes the 5489 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a 5490 * @mbox pointer is passed in, it will be put into the context_un.mbox 5491 * field of the IOCB for the completion callback function to issue the 5492 * mailbox command to the HBA later when callback is invoked. 5493 * 5494 * Note that the ndlp reference count will be incremented by 1 for holding the 5495 * ndlp and the reference to ndlp will be stored into the ndlp field of 5496 * the IOCB for the completion callback function to the corresponding 5497 * response ELS IOCB command. 5498 * 5499 * Return code 5500 * 0 - Successfully issued acc response 5501 * 1 - Failed to issue acc response 5502 **/ 5503 int 5504 lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, 5505 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, 5506 LPFC_MBOXQ_t *mbox) 5507 { 5508 struct lpfc_hba *phba = vport->phba; 5509 IOCB_t *icmd; 5510 IOCB_t *oldcmd; 5511 union lpfc_wqe128 *wqe; 5512 union lpfc_wqe128 *oldwqe = &oldiocb->wqe; 5513 struct lpfc_iocbq *elsiocb; 5514 uint8_t *pcmd; 5515 struct serv_parm *sp; 5516 uint16_t cmdsize; 5517 int rc; 5518 ELS_PKT *els_pkt_ptr; 5519 struct fc_els_rdf_resp *rdf_resp; 5520 5521 switch (flag) { 5522 case ELS_CMD_ACC: 5523 cmdsize = sizeof(uint32_t); 5524 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5525 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5526 if (!elsiocb) { 5527 spin_lock_irq(&ndlp->lock); 5528 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 5529 spin_unlock_irq(&ndlp->lock); 5530 return 1; 5531 } 5532 5533 if (phba->sli_rev == LPFC_SLI_REV4) { 5534 wqe = &elsiocb->wqe; 5535 /* XRI / rx_id */ 5536 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5537 bf_get(wqe_ctxt_tag, 5538 &oldwqe->xmit_els_rsp.wqe_com)); 5539 5540 /* oxid */ 5541 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5542 bf_get(wqe_rcvoxid, 5543 &oldwqe->xmit_els_rsp.wqe_com)); 5544 } else { 5545 icmd = &elsiocb->iocb; 5546 oldcmd = &oldiocb->iocb; 5547 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5548 icmd->unsli3.rcvsli3.ox_id = 5549 oldcmd->unsli3.rcvsli3.ox_id; 5550 } 5551 5552 pcmd = elsiocb->cmd_dmabuf->virt; 5553 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 5554 pcmd += sizeof(uint32_t); 5555 5556 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5557 "Issue ACC: did:x%x flg:x%x", 5558 ndlp->nlp_DID, ndlp->nlp_flag, 0); 5559 break; 5560 case ELS_CMD_FLOGI: 5561 case ELS_CMD_PLOGI: 5562 cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); 5563 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5564 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5565 if (!elsiocb) 5566 return 1; 5567 5568 if (phba->sli_rev == LPFC_SLI_REV4) { 5569 wqe = &elsiocb->wqe; 5570 /* XRI / rx_id */ 5571 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5572 bf_get(wqe_ctxt_tag, 5573 &oldwqe->xmit_els_rsp.wqe_com)); 5574 5575 /* oxid */ 5576 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5577 bf_get(wqe_rcvoxid, 5578 &oldwqe->xmit_els_rsp.wqe_com)); 5579 } else { 5580 icmd = &elsiocb->iocb; 5581 oldcmd = &oldiocb->iocb; 5582 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5583 icmd->unsli3.rcvsli3.ox_id = 5584 oldcmd->unsli3.rcvsli3.ox_id; 5585 } 5586 5587 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 5588 5589 if (mbox) 5590 elsiocb->context_un.mbox = mbox; 5591 5592 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 5593 pcmd += sizeof(uint32_t); 5594 sp = (struct serv_parm *)pcmd; 5595 5596 if (flag == ELS_CMD_FLOGI) { 5597 /* Copy the received service parameters back */ 5598 memcpy(sp, &phba->fc_fabparam, 5599 sizeof(struct serv_parm)); 5600 5601 /* Clear the F_Port bit */ 5602 sp->cmn.fPort = 0; 5603 5604 /* Mark all class service parameters as invalid */ 5605 sp->cls1.classValid = 0; 5606 sp->cls2.classValid = 0; 5607 sp->cls3.classValid = 0; 5608 sp->cls4.classValid = 0; 5609 5610 /* Copy our worldwide names */ 5611 memcpy(&sp->portName, &vport->fc_sparam.portName, 5612 sizeof(struct lpfc_name)); 5613 memcpy(&sp->nodeName, &vport->fc_sparam.nodeName, 5614 sizeof(struct lpfc_name)); 5615 } else { 5616 memcpy(pcmd, &vport->fc_sparam, 5617 sizeof(struct serv_parm)); 5618 5619 sp->cmn.valid_vendor_ver_level = 0; 5620 memset(sp->un.vendorVersion, 0, 5621 sizeof(sp->un.vendorVersion)); 5622 sp->cmn.bbRcvSizeMsb &= 0xF; 5623 5624 /* If our firmware supports this feature, convey that 5625 * info to the target using the vendor specific field. 5626 */ 5627 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) { 5628 sp->cmn.valid_vendor_ver_level = 1; 5629 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID); 5630 sp->un.vv.flags = 5631 cpu_to_be32(LPFC_VV_SUPPRESS_RSP); 5632 } 5633 } 5634 5635 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5636 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%x", 5637 ndlp->nlp_DID, ndlp->nlp_flag, 0); 5638 break; 5639 case ELS_CMD_PRLO: 5640 cmdsize = sizeof(uint32_t) + sizeof(PRLO); 5641 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5642 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); 5643 if (!elsiocb) 5644 return 1; 5645 5646 if (phba->sli_rev == LPFC_SLI_REV4) { 5647 wqe = &elsiocb->wqe; 5648 /* XRI / rx_id */ 5649 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5650 bf_get(wqe_ctxt_tag, 5651 &oldwqe->xmit_els_rsp.wqe_com)); 5652 5653 /* oxid */ 5654 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5655 bf_get(wqe_rcvoxid, 5656 &oldwqe->xmit_els_rsp.wqe_com)); 5657 } else { 5658 icmd = &elsiocb->iocb; 5659 oldcmd = &oldiocb->iocb; 5660 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5661 icmd->unsli3.rcvsli3.ox_id = 5662 oldcmd->unsli3.rcvsli3.ox_id; 5663 } 5664 5665 pcmd = (u8 *) elsiocb->cmd_dmabuf->virt; 5666 5667 memcpy(pcmd, oldiocb->cmd_dmabuf->virt, 5668 sizeof(uint32_t) + sizeof(PRLO)); 5669 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; 5670 els_pkt_ptr = (ELS_PKT *) pcmd; 5671 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; 5672 5673 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5674 "Issue ACC PRLO: did:x%x flg:x%x", 5675 ndlp->nlp_DID, ndlp->nlp_flag, 0); 5676 break; 5677 case ELS_CMD_RDF: 5678 cmdsize = sizeof(*rdf_resp); 5679 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5680 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5681 if (!elsiocb) 5682 return 1; 5683 5684 if (phba->sli_rev == LPFC_SLI_REV4) { 5685 wqe = &elsiocb->wqe; 5686 /* XRI / rx_id */ 5687 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5688 bf_get(wqe_ctxt_tag, 5689 &oldwqe->xmit_els_rsp.wqe_com)); 5690 5691 /* oxid */ 5692 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5693 bf_get(wqe_rcvoxid, 5694 &oldwqe->xmit_els_rsp.wqe_com)); 5695 } else { 5696 icmd = &elsiocb->iocb; 5697 oldcmd = &oldiocb->iocb; 5698 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5699 icmd->unsli3.rcvsli3.ox_id = 5700 oldcmd->unsli3.rcvsli3.ox_id; 5701 } 5702 5703 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 5704 rdf_resp = (struct fc_els_rdf_resp *)pcmd; 5705 memset(rdf_resp, 0, sizeof(*rdf_resp)); 5706 rdf_resp->acc_hdr.la_cmd = ELS_LS_ACC; 5707 5708 /* FC-LS-5 specifies desc_list_len shall be set to 12 */ 5709 rdf_resp->desc_list_len = cpu_to_be32(12); 5710 5711 /* FC-LS-5 specifies LS REQ Information descriptor */ 5712 rdf_resp->lsri.desc_tag = cpu_to_be32(1); 5713 rdf_resp->lsri.desc_len = cpu_to_be32(sizeof(u32)); 5714 rdf_resp->lsri.rqst_w0.cmd = ELS_RDF; 5715 break; 5716 default: 5717 return 1; 5718 } 5719 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 5720 spin_lock_irq(&ndlp->lock); 5721 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED || 5722 ndlp->nlp_flag & NLP_REG_LOGIN_SEND)) 5723 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 5724 spin_unlock_irq(&ndlp->lock); 5725 elsiocb->cmd_cmpl = lpfc_cmpl_els_logo_acc; 5726 } else { 5727 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 5728 } 5729 5730 phba->fc_stat.elsXmitACC++; 5731 elsiocb->ndlp = lpfc_nlp_get(ndlp); 5732 if (!elsiocb->ndlp) { 5733 lpfc_els_free_iocb(phba, elsiocb); 5734 return 1; 5735 } 5736 5737 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 5738 if (rc == IOCB_ERROR) { 5739 lpfc_els_free_iocb(phba, elsiocb); 5740 lpfc_nlp_put(ndlp); 5741 return 1; 5742 } 5743 5744 /* Xmit ELS ACC response tag <ulpIoTag> */ 5745 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5746 "0128 Xmit ELS ACC response Status: x%x, IoTag: x%x, " 5747 "XRI: x%x, DID: x%x, nlp_flag: x%x nlp_state: x%x " 5748 "RPI: x%x, fc_flag x%x refcnt %d\n", 5749 rc, elsiocb->iotag, elsiocb->sli4_xritag, 5750 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5751 ndlp->nlp_rpi, vport->fc_flag, kref_read(&ndlp->kref)); 5752 return 0; 5753 } 5754 5755 /** 5756 * lpfc_els_rsp_reject - Prepare and issue a rjt response iocb command 5757 * @vport: pointer to a virtual N_Port data structure. 5758 * @rejectError: reject response to issue 5759 * @oldiocb: pointer to the original lpfc command iocb data structure. 5760 * @ndlp: pointer to a node-list data structure. 5761 * @mbox: pointer to the driver internal queue element for mailbox command. 5762 * 5763 * This routine prepares and issue an Reject (RJT) response IOCB 5764 * command. If a @mbox pointer is passed in, it will be put into the 5765 * context_un.mbox field of the IOCB for the completion callback function 5766 * to issue to the HBA later. 5767 * 5768 * Note that the ndlp reference count will be incremented by 1 for holding the 5769 * ndlp and the reference to ndlp will be stored into the ndlp field of 5770 * the IOCB for the completion callback function to the reject response 5771 * ELS IOCB command. 5772 * 5773 * Return code 5774 * 0 - Successfully issued reject response 5775 * 1 - Failed to issue reject response 5776 **/ 5777 int 5778 lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, 5779 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, 5780 LPFC_MBOXQ_t *mbox) 5781 { 5782 int rc; 5783 struct lpfc_hba *phba = vport->phba; 5784 IOCB_t *icmd; 5785 IOCB_t *oldcmd; 5786 union lpfc_wqe128 *wqe; 5787 struct lpfc_iocbq *elsiocb; 5788 uint8_t *pcmd; 5789 uint16_t cmdsize; 5790 5791 cmdsize = 2 * sizeof(uint32_t); 5792 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 5793 ndlp->nlp_DID, ELS_CMD_LS_RJT); 5794 if (!elsiocb) 5795 return 1; 5796 5797 if (phba->sli_rev == LPFC_SLI_REV4) { 5798 wqe = &elsiocb->wqe; 5799 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 5800 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 5801 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5802 get_job_rcvoxid(phba, oldiocb)); 5803 } else { 5804 icmd = &elsiocb->iocb; 5805 oldcmd = &oldiocb->iocb; 5806 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5807 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; 5808 } 5809 5810 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 5811 5812 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; 5813 pcmd += sizeof(uint32_t); 5814 *((uint32_t *) (pcmd)) = rejectError; 5815 5816 if (mbox) 5817 elsiocb->context_un.mbox = mbox; 5818 5819 /* Xmit ELS RJT <err> response tag <ulpIoTag> */ 5820 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5821 "0129 Xmit ELS RJT x%x response tag x%x " 5822 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " 5823 "rpi x%x\n", 5824 rejectError, elsiocb->iotag, 5825 get_job_ulpcontext(phba, elsiocb), ndlp->nlp_DID, 5826 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); 5827 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5828 "Issue LS_RJT: did:x%x flg:x%x err:x%x", 5829 ndlp->nlp_DID, ndlp->nlp_flag, rejectError); 5830 5831 phba->fc_stat.elsXmitLSRJT++; 5832 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 5833 elsiocb->ndlp = lpfc_nlp_get(ndlp); 5834 if (!elsiocb->ndlp) { 5835 lpfc_els_free_iocb(phba, elsiocb); 5836 return 1; 5837 } 5838 5839 /* The NPIV instance is rejecting this unsolicited ELS. Make sure the 5840 * node's assigned RPI gets released provided this node is not already 5841 * registered with the transport. 5842 */ 5843 if (phba->sli_rev == LPFC_SLI_REV4 && 5844 vport->port_type == LPFC_NPIV_PORT && 5845 !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) { 5846 spin_lock_irq(&ndlp->lock); 5847 ndlp->nlp_flag |= NLP_RELEASE_RPI; 5848 spin_unlock_irq(&ndlp->lock); 5849 } 5850 5851 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 5852 if (rc == IOCB_ERROR) { 5853 lpfc_els_free_iocb(phba, elsiocb); 5854 lpfc_nlp_put(ndlp); 5855 return 1; 5856 } 5857 5858 return 0; 5859 } 5860 5861 /** 5862 * lpfc_issue_els_edc_rsp - Exchange Diagnostic Capabilities with the fabric. 5863 * @vport: pointer to a host virtual N_Port data structure. 5864 * @cmdiocb: pointer to the original lpfc command iocb data structure. 5865 * @ndlp: NPort to where rsp is directed 5866 * 5867 * This routine issues an EDC ACC RSP to the F-Port Controller to communicate 5868 * this N_Port's support of hardware signals in its Congestion 5869 * Capabilities Descriptor. 5870 * 5871 * Return code 5872 * 0 - Successfully issued edc rsp command 5873 * 1 - Failed to issue edc rsp command 5874 **/ 5875 static int 5876 lpfc_issue_els_edc_rsp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 5877 struct lpfc_nodelist *ndlp) 5878 { 5879 struct lpfc_hba *phba = vport->phba; 5880 struct fc_els_edc_resp *edc_rsp; 5881 struct fc_tlv_desc *tlv; 5882 struct lpfc_iocbq *elsiocb; 5883 IOCB_t *icmd, *cmd; 5884 union lpfc_wqe128 *wqe; 5885 u32 cgn_desc_size, lft_desc_size; 5886 u16 cmdsize; 5887 uint8_t *pcmd; 5888 int rc; 5889 5890 cmdsize = sizeof(struct fc_els_edc_resp); 5891 cgn_desc_size = sizeof(struct fc_diag_cg_sig_desc); 5892 lft_desc_size = (lpfc_link_is_lds_capable(phba)) ? 5893 sizeof(struct fc_diag_lnkflt_desc) : 0; 5894 cmdsize += cgn_desc_size + lft_desc_size; 5895 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, cmdiocb->retry, 5896 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5897 if (!elsiocb) 5898 return 1; 5899 5900 if (phba->sli_rev == LPFC_SLI_REV4) { 5901 wqe = &elsiocb->wqe; 5902 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 5903 get_job_ulpcontext(phba, cmdiocb)); /* Xri / rx_id */ 5904 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5905 get_job_rcvoxid(phba, cmdiocb)); 5906 } else { 5907 icmd = &elsiocb->iocb; 5908 cmd = &cmdiocb->iocb; 5909 icmd->ulpContext = cmd->ulpContext; /* Xri / rx_id */ 5910 icmd->unsli3.rcvsli3.ox_id = cmd->unsli3.rcvsli3.ox_id; 5911 } 5912 5913 pcmd = elsiocb->cmd_dmabuf->virt; 5914 memset(pcmd, 0, cmdsize); 5915 5916 edc_rsp = (struct fc_els_edc_resp *)pcmd; 5917 edc_rsp->acc_hdr.la_cmd = ELS_LS_ACC; 5918 edc_rsp->desc_list_len = cpu_to_be32(sizeof(struct fc_els_lsri_desc) + 5919 cgn_desc_size + lft_desc_size); 5920 edc_rsp->lsri.desc_tag = cpu_to_be32(ELS_DTAG_LS_REQ_INFO); 5921 edc_rsp->lsri.desc_len = cpu_to_be32( 5922 FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_els_lsri_desc)); 5923 edc_rsp->lsri.rqst_w0.cmd = ELS_EDC; 5924 tlv = edc_rsp->desc; 5925 lpfc_format_edc_cgn_desc(phba, tlv); 5926 tlv = fc_tlv_next_desc(tlv); 5927 if (lft_desc_size) 5928 lpfc_format_edc_lft_desc(phba, tlv); 5929 5930 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5931 "Issue EDC ACC: did:x%x flg:x%x refcnt %d", 5932 ndlp->nlp_DID, ndlp->nlp_flag, 5933 kref_read(&ndlp->kref)); 5934 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 5935 5936 phba->fc_stat.elsXmitACC++; 5937 elsiocb->ndlp = lpfc_nlp_get(ndlp); 5938 if (!elsiocb->ndlp) { 5939 lpfc_els_free_iocb(phba, elsiocb); 5940 return 1; 5941 } 5942 5943 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 5944 if (rc == IOCB_ERROR) { 5945 lpfc_els_free_iocb(phba, elsiocb); 5946 lpfc_nlp_put(ndlp); 5947 return 1; 5948 } 5949 5950 /* Xmit ELS ACC response tag <ulpIoTag> */ 5951 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5952 "0152 Xmit EDC ACC response Status: x%x, IoTag: x%x, " 5953 "XRI: x%x, DID: x%x, nlp_flag: x%x nlp_state: x%x " 5954 "RPI: x%x, fc_flag x%x\n", 5955 rc, elsiocb->iotag, elsiocb->sli4_xritag, 5956 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5957 ndlp->nlp_rpi, vport->fc_flag); 5958 5959 return 0; 5960 } 5961 5962 /** 5963 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd 5964 * @vport: pointer to a virtual N_Port data structure. 5965 * @oldiocb: pointer to the original lpfc command iocb data structure. 5966 * @ndlp: pointer to a node-list data structure. 5967 * 5968 * This routine prepares and issues an Accept (ACC) response to Address 5969 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB 5970 * and invokes the lpfc_sli_issue_iocb() routine to send out the command. 5971 * 5972 * Note that the ndlp reference count will be incremented by 1 for holding the 5973 * ndlp and the reference to ndlp will be stored into the ndlp field of 5974 * the IOCB for the completion callback function to the ADISC Accept response 5975 * ELS IOCB command. 5976 * 5977 * Return code 5978 * 0 - Successfully issued acc adisc response 5979 * 1 - Failed to issue adisc acc response 5980 **/ 5981 int 5982 lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, 5983 struct lpfc_nodelist *ndlp) 5984 { 5985 struct lpfc_hba *phba = vport->phba; 5986 ADISC *ap; 5987 IOCB_t *icmd, *oldcmd; 5988 union lpfc_wqe128 *wqe; 5989 struct lpfc_iocbq *elsiocb; 5990 uint8_t *pcmd; 5991 uint16_t cmdsize; 5992 int rc; 5993 u32 ulp_context; 5994 5995 cmdsize = sizeof(uint32_t) + sizeof(ADISC); 5996 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 5997 ndlp->nlp_DID, ELS_CMD_ACC); 5998 if (!elsiocb) 5999 return 1; 6000 6001 if (phba->sli_rev == LPFC_SLI_REV4) { 6002 wqe = &elsiocb->wqe; 6003 /* XRI / rx_id */ 6004 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6005 get_job_ulpcontext(phba, oldiocb)); 6006 ulp_context = get_job_ulpcontext(phba, elsiocb); 6007 /* oxid */ 6008 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6009 get_job_rcvoxid(phba, oldiocb)); 6010 } else { 6011 icmd = &elsiocb->iocb; 6012 oldcmd = &oldiocb->iocb; 6013 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6014 ulp_context = elsiocb->iocb.ulpContext; 6015 icmd->unsli3.rcvsli3.ox_id = 6016 oldcmd->unsli3.rcvsli3.ox_id; 6017 } 6018 6019 /* Xmit ADISC ACC response tag <ulpIoTag> */ 6020 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6021 "0130 Xmit ADISC ACC response iotag x%x xri: " 6022 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n", 6023 elsiocb->iotag, ulp_context, 6024 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 6025 ndlp->nlp_rpi); 6026 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6027 6028 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 6029 pcmd += sizeof(uint32_t); 6030 6031 ap = (ADISC *) (pcmd); 6032 ap->hardAL_PA = phba->fc_pref_ALPA; 6033 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); 6034 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 6035 ap->DID = be32_to_cpu(vport->fc_myDID); 6036 6037 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6038 "Issue ACC ADISC: did:x%x flg:x%x refcnt %d", 6039 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6040 6041 phba->fc_stat.elsXmitACC++; 6042 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6043 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6044 if (!elsiocb->ndlp) { 6045 lpfc_els_free_iocb(phba, elsiocb); 6046 return 1; 6047 } 6048 6049 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6050 if (rc == IOCB_ERROR) { 6051 lpfc_els_free_iocb(phba, elsiocb); 6052 lpfc_nlp_put(ndlp); 6053 return 1; 6054 } 6055 6056 return 0; 6057 } 6058 6059 /** 6060 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd 6061 * @vport: pointer to a virtual N_Port data structure. 6062 * @oldiocb: pointer to the original lpfc command iocb data structure. 6063 * @ndlp: pointer to a node-list data structure. 6064 * 6065 * This routine prepares and issues an Accept (ACC) response to Process 6066 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB 6067 * and invokes the lpfc_sli_issue_iocb() routine to send out the command. 6068 * 6069 * Note that the ndlp reference count will be incremented by 1 for holding the 6070 * ndlp and the reference to ndlp will be stored into the ndlp field of 6071 * the IOCB for the completion callback function to the PRLI Accept response 6072 * ELS IOCB command. 6073 * 6074 * Return code 6075 * 0 - Successfully issued acc prli response 6076 * 1 - Failed to issue acc prli response 6077 **/ 6078 int 6079 lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, 6080 struct lpfc_nodelist *ndlp) 6081 { 6082 struct lpfc_hba *phba = vport->phba; 6083 PRLI *npr; 6084 struct lpfc_nvme_prli *npr_nvme; 6085 lpfc_vpd_t *vpd; 6086 IOCB_t *icmd; 6087 IOCB_t *oldcmd; 6088 union lpfc_wqe128 *wqe; 6089 struct lpfc_iocbq *elsiocb; 6090 uint8_t *pcmd; 6091 uint16_t cmdsize; 6092 uint32_t prli_fc4_req, *req_payload; 6093 struct lpfc_dmabuf *req_buf; 6094 int rc; 6095 u32 elsrspcmd, ulp_context; 6096 6097 /* Need the incoming PRLI payload to determine if the ACC is for an 6098 * FC4 or NVME PRLI type. The PRLI type is at word 1. 6099 */ 6100 req_buf = oldiocb->cmd_dmabuf; 6101 req_payload = (((uint32_t *)req_buf->virt) + 1); 6102 6103 /* PRLI type payload is at byte 3 for FCP or NVME. */ 6104 prli_fc4_req = be32_to_cpu(*req_payload); 6105 prli_fc4_req = (prli_fc4_req >> 24) & 0xff; 6106 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6107 "6127 PRLI_ACC: Req Type x%x, Word1 x%08x\n", 6108 prli_fc4_req, *((uint32_t *)req_payload)); 6109 6110 if (prli_fc4_req == PRLI_FCP_TYPE) { 6111 cmdsize = sizeof(uint32_t) + sizeof(PRLI); 6112 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); 6113 } else if (prli_fc4_req == PRLI_NVME_TYPE) { 6114 cmdsize = sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli); 6115 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_NVMEPRLI & ~ELS_RSP_MASK)); 6116 } else { 6117 return 1; 6118 } 6119 6120 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 6121 ndlp->nlp_DID, elsrspcmd); 6122 if (!elsiocb) 6123 return 1; 6124 6125 if (phba->sli_rev == LPFC_SLI_REV4) { 6126 wqe = &elsiocb->wqe; 6127 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6128 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 6129 ulp_context = get_job_ulpcontext(phba, elsiocb); 6130 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6131 get_job_rcvoxid(phba, oldiocb)); 6132 } else { 6133 icmd = &elsiocb->iocb; 6134 oldcmd = &oldiocb->iocb; 6135 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6136 ulp_context = elsiocb->iocb.ulpContext; 6137 icmd->unsli3.rcvsli3.ox_id = 6138 oldcmd->unsli3.rcvsli3.ox_id; 6139 } 6140 6141 /* Xmit PRLI ACC response tag <ulpIoTag> */ 6142 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6143 "0131 Xmit PRLI ACC response tag x%x xri x%x, " 6144 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", 6145 elsiocb->iotag, ulp_context, 6146 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 6147 ndlp->nlp_rpi); 6148 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6149 memset(pcmd, 0, cmdsize); 6150 6151 *((uint32_t *)(pcmd)) = elsrspcmd; 6152 pcmd += sizeof(uint32_t); 6153 6154 /* For PRLI, remainder of payload is PRLI parameter page */ 6155 vpd = &phba->vpd; 6156 6157 if (prli_fc4_req == PRLI_FCP_TYPE) { 6158 /* 6159 * If the remote port is a target and our firmware version 6160 * is 3.20 or later, set the following bits for FC-TAPE 6161 * support. 6162 */ 6163 npr = (PRLI *) pcmd; 6164 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 6165 (vpd->rev.feaLevelHigh >= 0x02)) { 6166 npr->ConfmComplAllowed = 1; 6167 npr->Retry = 1; 6168 npr->TaskRetryIdReq = 1; 6169 } 6170 npr->acceptRspCode = PRLI_REQ_EXECUTED; 6171 npr->estabImagePair = 1; 6172 npr->readXferRdyDis = 1; 6173 npr->ConfmComplAllowed = 1; 6174 npr->prliType = PRLI_FCP_TYPE; 6175 npr->initiatorFunc = 1; 6176 } else if (prli_fc4_req == PRLI_NVME_TYPE) { 6177 /* Respond with an NVME PRLI Type */ 6178 npr_nvme = (struct lpfc_nvme_prli *) pcmd; 6179 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE); 6180 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */ 6181 bf_set(prli_acc_rsp_code, npr_nvme, PRLI_REQ_EXECUTED); 6182 if (phba->nvmet_support) { 6183 bf_set(prli_tgt, npr_nvme, 1); 6184 bf_set(prli_disc, npr_nvme, 1); 6185 if (phba->cfg_nvme_enable_fb) { 6186 bf_set(prli_fba, npr_nvme, 1); 6187 6188 /* TBD. Target mode needs to post buffers 6189 * that support the configured first burst 6190 * byte size. 6191 */ 6192 bf_set(prli_fb_sz, npr_nvme, 6193 phba->cfg_nvmet_fb_size); 6194 } 6195 } else { 6196 bf_set(prli_init, npr_nvme, 1); 6197 } 6198 6199 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 6200 "6015 NVME issue PRLI ACC word1 x%08x " 6201 "word4 x%08x word5 x%08x flag x%x, " 6202 "fcp_info x%x nlp_type x%x\n", 6203 npr_nvme->word1, npr_nvme->word4, 6204 npr_nvme->word5, ndlp->nlp_flag, 6205 ndlp->nlp_fcp_info, ndlp->nlp_type); 6206 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1); 6207 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4); 6208 npr_nvme->word5 = cpu_to_be32(npr_nvme->word5); 6209 } else 6210 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 6211 "6128 Unknown FC_TYPE x%x x%x ndlp x%06x\n", 6212 prli_fc4_req, ndlp->nlp_fc4_type, 6213 ndlp->nlp_DID); 6214 6215 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6216 "Issue ACC PRLI: did:x%x flg:x%x", 6217 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6218 6219 phba->fc_stat.elsXmitACC++; 6220 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6221 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6222 if (!elsiocb->ndlp) { 6223 lpfc_els_free_iocb(phba, elsiocb); 6224 return 1; 6225 } 6226 6227 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6228 if (rc == IOCB_ERROR) { 6229 lpfc_els_free_iocb(phba, elsiocb); 6230 lpfc_nlp_put(ndlp); 6231 return 1; 6232 } 6233 6234 return 0; 6235 } 6236 6237 /** 6238 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command 6239 * @vport: pointer to a virtual N_Port data structure. 6240 * @format: rnid command format. 6241 * @oldiocb: pointer to the original lpfc command iocb data structure. 6242 * @ndlp: pointer to a node-list data structure. 6243 * 6244 * This routine issues a Request Node Identification Data (RNID) Accept 6245 * (ACC) response. It constructs the RNID ACC response command according to 6246 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to 6247 * issue the response. 6248 * 6249 * Note that the ndlp reference count will be incremented by 1 for holding the 6250 * ndlp and the reference to ndlp will be stored into the ndlp field of 6251 * the IOCB for the completion callback function. 6252 * 6253 * Return code 6254 * 0 - Successfully issued acc rnid response 6255 * 1 - Failed to issue acc rnid response 6256 **/ 6257 static int 6258 lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, 6259 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) 6260 { 6261 struct lpfc_hba *phba = vport->phba; 6262 RNID *rn; 6263 IOCB_t *icmd, *oldcmd; 6264 union lpfc_wqe128 *wqe; 6265 struct lpfc_iocbq *elsiocb; 6266 uint8_t *pcmd; 6267 uint16_t cmdsize; 6268 int rc; 6269 u32 ulp_context; 6270 6271 cmdsize = sizeof(uint32_t) + sizeof(uint32_t) 6272 + (2 * sizeof(struct lpfc_name)); 6273 if (format) 6274 cmdsize += sizeof(RNID_TOP_DISC); 6275 6276 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 6277 ndlp->nlp_DID, ELS_CMD_ACC); 6278 if (!elsiocb) 6279 return 1; 6280 6281 if (phba->sli_rev == LPFC_SLI_REV4) { 6282 wqe = &elsiocb->wqe; 6283 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6284 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 6285 ulp_context = get_job_ulpcontext(phba, elsiocb); 6286 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6287 get_job_rcvoxid(phba, oldiocb)); 6288 } else { 6289 icmd = &elsiocb->iocb; 6290 oldcmd = &oldiocb->iocb; 6291 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6292 ulp_context = elsiocb->iocb.ulpContext; 6293 icmd->unsli3.rcvsli3.ox_id = 6294 oldcmd->unsli3.rcvsli3.ox_id; 6295 } 6296 6297 /* Xmit RNID ACC response tag <ulpIoTag> */ 6298 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6299 "0132 Xmit RNID ACC response tag x%x xri x%x\n", 6300 elsiocb->iotag, ulp_context); 6301 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6302 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 6303 pcmd += sizeof(uint32_t); 6304 6305 memset(pcmd, 0, sizeof(RNID)); 6306 rn = (RNID *) (pcmd); 6307 rn->Format = format; 6308 rn->CommonLen = (2 * sizeof(struct lpfc_name)); 6309 memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); 6310 memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 6311 switch (format) { 6312 case 0: 6313 rn->SpecificLen = 0; 6314 break; 6315 case RNID_TOPOLOGY_DISC: 6316 rn->SpecificLen = sizeof(RNID_TOP_DISC); 6317 memcpy(&rn->un.topologyDisc.portName, 6318 &vport->fc_portname, sizeof(struct lpfc_name)); 6319 rn->un.topologyDisc.unitType = RNID_HBA; 6320 rn->un.topologyDisc.physPort = 0; 6321 rn->un.topologyDisc.attachedNodes = 0; 6322 break; 6323 default: 6324 rn->CommonLen = 0; 6325 rn->SpecificLen = 0; 6326 break; 6327 } 6328 6329 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6330 "Issue ACC RNID: did:x%x flg:x%x refcnt %d", 6331 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6332 6333 phba->fc_stat.elsXmitACC++; 6334 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6335 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6336 if (!elsiocb->ndlp) { 6337 lpfc_els_free_iocb(phba, elsiocb); 6338 return 1; 6339 } 6340 6341 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6342 if (rc == IOCB_ERROR) { 6343 lpfc_els_free_iocb(phba, elsiocb); 6344 lpfc_nlp_put(ndlp); 6345 return 1; 6346 } 6347 6348 return 0; 6349 } 6350 6351 /** 6352 * lpfc_els_clear_rrq - Clear the rq that this rrq describes. 6353 * @vport: pointer to a virtual N_Port data structure. 6354 * @iocb: pointer to the lpfc command iocb data structure. 6355 * @ndlp: pointer to a node-list data structure. 6356 * 6357 * Return 6358 **/ 6359 static void 6360 lpfc_els_clear_rrq(struct lpfc_vport *vport, 6361 struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp) 6362 { 6363 struct lpfc_hba *phba = vport->phba; 6364 uint8_t *pcmd; 6365 struct RRQ *rrq; 6366 uint16_t rxid; 6367 uint16_t xri; 6368 struct lpfc_node_rrq *prrq; 6369 6370 6371 pcmd = (uint8_t *)iocb->cmd_dmabuf->virt; 6372 pcmd += sizeof(uint32_t); 6373 rrq = (struct RRQ *)pcmd; 6374 rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg); 6375 rxid = bf_get(rrq_rxid, rrq); 6376 6377 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6378 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x" 6379 " x%x x%x\n", 6380 be32_to_cpu(bf_get(rrq_did, rrq)), 6381 bf_get(rrq_oxid, rrq), 6382 rxid, 6383 get_wqe_reqtag(iocb), 6384 get_job_ulpcontext(phba, iocb)); 6385 6386 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6387 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x", 6388 ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg); 6389 if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq))) 6390 xri = bf_get(rrq_oxid, rrq); 6391 else 6392 xri = rxid; 6393 prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID); 6394 if (prrq) 6395 lpfc_clr_rrq_active(phba, xri, prrq); 6396 return; 6397 } 6398 6399 /** 6400 * lpfc_els_rsp_echo_acc - Issue echo acc response 6401 * @vport: pointer to a virtual N_Port data structure. 6402 * @data: pointer to echo data to return in the accept. 6403 * @oldiocb: pointer to the original lpfc command iocb data structure. 6404 * @ndlp: pointer to a node-list data structure. 6405 * 6406 * Return code 6407 * 0 - Successfully issued acc echo response 6408 * 1 - Failed to issue acc echo response 6409 **/ 6410 static int 6411 lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data, 6412 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) 6413 { 6414 struct lpfc_hba *phba = vport->phba; 6415 IOCB_t *icmd, *oldcmd; 6416 union lpfc_wqe128 *wqe; 6417 struct lpfc_iocbq *elsiocb; 6418 uint8_t *pcmd; 6419 uint16_t cmdsize; 6420 int rc; 6421 u32 ulp_context; 6422 6423 if (phba->sli_rev == LPFC_SLI_REV4) 6424 cmdsize = oldiocb->wcqe_cmpl.total_data_placed; 6425 else 6426 cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len; 6427 6428 /* The accumulated length can exceed the BPL_SIZE. For 6429 * now, use this as the limit 6430 */ 6431 if (cmdsize > LPFC_BPL_SIZE) 6432 cmdsize = LPFC_BPL_SIZE; 6433 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 6434 ndlp->nlp_DID, ELS_CMD_ACC); 6435 if (!elsiocb) 6436 return 1; 6437 6438 if (phba->sli_rev == LPFC_SLI_REV4) { 6439 wqe = &elsiocb->wqe; 6440 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6441 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 6442 ulp_context = get_job_ulpcontext(phba, elsiocb); 6443 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6444 get_job_rcvoxid(phba, oldiocb)); 6445 } else { 6446 icmd = &elsiocb->iocb; 6447 oldcmd = &oldiocb->iocb; 6448 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6449 ulp_context = elsiocb->iocb.ulpContext; 6450 icmd->unsli3.rcvsli3.ox_id = 6451 oldcmd->unsli3.rcvsli3.ox_id; 6452 } 6453 6454 /* Xmit ECHO ACC response tag <ulpIoTag> */ 6455 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6456 "2876 Xmit ECHO ACC response tag x%x xri x%x\n", 6457 elsiocb->iotag, ulp_context); 6458 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6459 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 6460 pcmd += sizeof(uint32_t); 6461 memcpy(pcmd, data, cmdsize - sizeof(uint32_t)); 6462 6463 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6464 "Issue ACC ECHO: did:x%x flg:x%x refcnt %d", 6465 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6466 6467 phba->fc_stat.elsXmitACC++; 6468 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6469 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6470 if (!elsiocb->ndlp) { 6471 lpfc_els_free_iocb(phba, elsiocb); 6472 return 1; 6473 } 6474 6475 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6476 if (rc == IOCB_ERROR) { 6477 lpfc_els_free_iocb(phba, elsiocb); 6478 lpfc_nlp_put(ndlp); 6479 return 1; 6480 } 6481 6482 return 0; 6483 } 6484 6485 /** 6486 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport 6487 * @vport: pointer to a host virtual N_Port data structure. 6488 * 6489 * This routine issues Address Discover (ADISC) ELS commands to those 6490 * N_Ports which are in node port recovery state and ADISC has not been issued 6491 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the 6492 * lpfc_issue_els_adisc() routine, the per @vport number of discover count 6493 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a 6494 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will 6495 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC 6496 * IOCBs quit for later pick up. On the other hand, after walking through 6497 * all the ndlps with the @vport and there is none ADISC IOCB issued, the 6498 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is 6499 * no more ADISC need to be sent. 6500 * 6501 * Return code 6502 * The number of N_Ports with adisc issued. 6503 **/ 6504 int 6505 lpfc_els_disc_adisc(struct lpfc_vport *vport) 6506 { 6507 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6508 struct lpfc_nodelist *ndlp, *next_ndlp; 6509 int sentadisc = 0; 6510 6511 /* go thru NPR nodes and issue any remaining ELS ADISCs */ 6512 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 6513 6514 if (ndlp->nlp_state != NLP_STE_NPR_NODE || 6515 !(ndlp->nlp_flag & NLP_NPR_ADISC)) 6516 continue; 6517 6518 spin_lock_irq(&ndlp->lock); 6519 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 6520 spin_unlock_irq(&ndlp->lock); 6521 6522 if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 6523 /* This node was marked for ADISC but was not picked 6524 * for discovery. This is possible if the node was 6525 * missing in gidft response. 6526 * 6527 * At time of marking node for ADISC, we skipped unreg 6528 * from backend 6529 */ 6530 lpfc_nlp_unreg_node(vport, ndlp); 6531 lpfc_unreg_rpi(vport, ndlp); 6532 continue; 6533 } 6534 6535 ndlp->nlp_prev_state = ndlp->nlp_state; 6536 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 6537 lpfc_issue_els_adisc(vport, ndlp, 0); 6538 sentadisc++; 6539 vport->num_disc_nodes++; 6540 if (vport->num_disc_nodes >= 6541 vport->cfg_discovery_threads) { 6542 spin_lock_irq(shost->host_lock); 6543 vport->fc_flag |= FC_NLP_MORE; 6544 spin_unlock_irq(shost->host_lock); 6545 break; 6546 } 6547 6548 } 6549 if (sentadisc == 0) { 6550 spin_lock_irq(shost->host_lock); 6551 vport->fc_flag &= ~FC_NLP_MORE; 6552 spin_unlock_irq(shost->host_lock); 6553 } 6554 return sentadisc; 6555 } 6556 6557 /** 6558 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc 6559 * @vport: pointer to a host virtual N_Port data structure. 6560 * 6561 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports 6562 * which are in node port recovery state, with a @vport. Each time an ELS 6563 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine, 6564 * the per @vport number of discover count (num_disc_nodes) shall be 6565 * incremented. If the num_disc_nodes reaches a pre-configured threshold 6566 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE 6567 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for 6568 * later pick up. On the other hand, after walking through all the ndlps with 6569 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag 6570 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC 6571 * PLOGI need to be sent. 6572 * 6573 * Return code 6574 * The number of N_Ports with plogi issued. 6575 **/ 6576 int 6577 lpfc_els_disc_plogi(struct lpfc_vport *vport) 6578 { 6579 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6580 struct lpfc_nodelist *ndlp, *next_ndlp; 6581 int sentplogi = 0; 6582 6583 /* go thru NPR nodes and issue any remaining ELS PLOGIs */ 6584 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 6585 if (ndlp->nlp_state == NLP_STE_NPR_NODE && 6586 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && 6587 (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && 6588 (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { 6589 ndlp->nlp_prev_state = ndlp->nlp_state; 6590 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 6591 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 6592 sentplogi++; 6593 vport->num_disc_nodes++; 6594 if (vport->num_disc_nodes >= 6595 vport->cfg_discovery_threads) { 6596 spin_lock_irq(shost->host_lock); 6597 vport->fc_flag |= FC_NLP_MORE; 6598 spin_unlock_irq(shost->host_lock); 6599 break; 6600 } 6601 } 6602 } 6603 6604 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 6605 "6452 Discover PLOGI %d flag x%x\n", 6606 sentplogi, vport->fc_flag); 6607 6608 if (sentplogi) { 6609 lpfc_set_disctmo(vport); 6610 } 6611 else { 6612 spin_lock_irq(shost->host_lock); 6613 vport->fc_flag &= ~FC_NLP_MORE; 6614 spin_unlock_irq(shost->host_lock); 6615 } 6616 return sentplogi; 6617 } 6618 6619 static uint32_t 6620 lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc, 6621 uint32_t word0) 6622 { 6623 6624 desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG); 6625 desc->payload.els_req = word0; 6626 desc->length = cpu_to_be32(sizeof(desc->payload)); 6627 6628 return sizeof(struct fc_rdp_link_service_desc); 6629 } 6630 6631 static uint32_t 6632 lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc, 6633 uint8_t *page_a0, uint8_t *page_a2) 6634 { 6635 uint16_t wavelength; 6636 uint16_t temperature; 6637 uint16_t rx_power; 6638 uint16_t tx_bias; 6639 uint16_t tx_power; 6640 uint16_t vcc; 6641 uint16_t flag = 0; 6642 struct sff_trasnceiver_codes_byte4 *trasn_code_byte4; 6643 struct sff_trasnceiver_codes_byte5 *trasn_code_byte5; 6644 6645 desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG); 6646 6647 trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *) 6648 &page_a0[SSF_TRANSCEIVER_CODE_B4]; 6649 trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *) 6650 &page_a0[SSF_TRANSCEIVER_CODE_B5]; 6651 6652 if ((trasn_code_byte4->fc_sw_laser) || 6653 (trasn_code_byte5->fc_sw_laser_sl) || 6654 (trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */ 6655 flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT); 6656 } else if (trasn_code_byte4->fc_lw_laser) { 6657 wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) | 6658 page_a0[SSF_WAVELENGTH_B0]; 6659 if (wavelength == SFP_WAVELENGTH_LC1310) 6660 flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT; 6661 if (wavelength == SFP_WAVELENGTH_LL1550) 6662 flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT; 6663 } 6664 /* check if its SFP+ */ 6665 flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ? 6666 SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN) 6667 << SFP_FLAG_CT_SHIFT; 6668 6669 /* check if its OPTICAL */ 6670 flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ? 6671 SFP_FLAG_IS_OPTICAL_PORT : 0) 6672 << SFP_FLAG_IS_OPTICAL_SHIFT; 6673 6674 temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 | 6675 page_a2[SFF_TEMPERATURE_B0]); 6676 vcc = (page_a2[SFF_VCC_B1] << 8 | 6677 page_a2[SFF_VCC_B0]); 6678 tx_power = (page_a2[SFF_TXPOWER_B1] << 8 | 6679 page_a2[SFF_TXPOWER_B0]); 6680 tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 | 6681 page_a2[SFF_TX_BIAS_CURRENT_B0]); 6682 rx_power = (page_a2[SFF_RXPOWER_B1] << 8 | 6683 page_a2[SFF_RXPOWER_B0]); 6684 desc->sfp_info.temperature = cpu_to_be16(temperature); 6685 desc->sfp_info.rx_power = cpu_to_be16(rx_power); 6686 desc->sfp_info.tx_bias = cpu_to_be16(tx_bias); 6687 desc->sfp_info.tx_power = cpu_to_be16(tx_power); 6688 desc->sfp_info.vcc = cpu_to_be16(vcc); 6689 6690 desc->sfp_info.flags = cpu_to_be16(flag); 6691 desc->length = cpu_to_be32(sizeof(desc->sfp_info)); 6692 6693 return sizeof(struct fc_rdp_sfp_desc); 6694 } 6695 6696 static uint32_t 6697 lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc, 6698 READ_LNK_VAR *stat) 6699 { 6700 uint32_t type; 6701 6702 desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG); 6703 6704 type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT; 6705 6706 desc->info.port_type = cpu_to_be32(type); 6707 6708 desc->info.link_status.link_failure_cnt = 6709 cpu_to_be32(stat->linkFailureCnt); 6710 desc->info.link_status.loss_of_synch_cnt = 6711 cpu_to_be32(stat->lossSyncCnt); 6712 desc->info.link_status.loss_of_signal_cnt = 6713 cpu_to_be32(stat->lossSignalCnt); 6714 desc->info.link_status.primitive_seq_proto_err = 6715 cpu_to_be32(stat->primSeqErrCnt); 6716 desc->info.link_status.invalid_trans_word = 6717 cpu_to_be32(stat->invalidXmitWord); 6718 desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt); 6719 6720 desc->length = cpu_to_be32(sizeof(desc->info)); 6721 6722 return sizeof(struct fc_rdp_link_error_status_desc); 6723 } 6724 6725 static uint32_t 6726 lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat, 6727 struct lpfc_vport *vport) 6728 { 6729 uint32_t bbCredit; 6730 6731 desc->tag = cpu_to_be32(RDP_BBC_DESC_TAG); 6732 6733 bbCredit = vport->fc_sparam.cmn.bbCreditLsb | 6734 (vport->fc_sparam.cmn.bbCreditMsb << 8); 6735 desc->bbc_info.port_bbc = cpu_to_be32(bbCredit); 6736 if (vport->phba->fc_topology != LPFC_TOPOLOGY_LOOP) { 6737 bbCredit = vport->phba->fc_fabparam.cmn.bbCreditLsb | 6738 (vport->phba->fc_fabparam.cmn.bbCreditMsb << 8); 6739 desc->bbc_info.attached_port_bbc = cpu_to_be32(bbCredit); 6740 } else { 6741 desc->bbc_info.attached_port_bbc = 0; 6742 } 6743 6744 desc->bbc_info.rtt = 0; 6745 desc->length = cpu_to_be32(sizeof(desc->bbc_info)); 6746 6747 return sizeof(struct fc_rdp_bbc_desc); 6748 } 6749 6750 static uint32_t 6751 lpfc_rdp_res_oed_temp_desc(struct lpfc_hba *phba, 6752 struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2) 6753 { 6754 uint32_t flags = 0; 6755 6756 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6757 6758 desc->oed_info.hi_alarm = page_a2[SSF_TEMP_HIGH_ALARM]; 6759 desc->oed_info.lo_alarm = page_a2[SSF_TEMP_LOW_ALARM]; 6760 desc->oed_info.hi_warning = page_a2[SSF_TEMP_HIGH_WARNING]; 6761 desc->oed_info.lo_warning = page_a2[SSF_TEMP_LOW_WARNING]; 6762 6763 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TEMPERATURE) 6764 flags |= RDP_OET_HIGH_ALARM; 6765 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TEMPERATURE) 6766 flags |= RDP_OET_LOW_ALARM; 6767 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TEMPERATURE) 6768 flags |= RDP_OET_HIGH_WARNING; 6769 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TEMPERATURE) 6770 flags |= RDP_OET_LOW_WARNING; 6771 6772 flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT); 6773 desc->oed_info.function_flags = cpu_to_be32(flags); 6774 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6775 return sizeof(struct fc_rdp_oed_sfp_desc); 6776 } 6777 6778 static uint32_t 6779 lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba *phba, 6780 struct fc_rdp_oed_sfp_desc *desc, 6781 uint8_t *page_a2) 6782 { 6783 uint32_t flags = 0; 6784 6785 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6786 6787 desc->oed_info.hi_alarm = page_a2[SSF_VOLTAGE_HIGH_ALARM]; 6788 desc->oed_info.lo_alarm = page_a2[SSF_VOLTAGE_LOW_ALARM]; 6789 desc->oed_info.hi_warning = page_a2[SSF_VOLTAGE_HIGH_WARNING]; 6790 desc->oed_info.lo_warning = page_a2[SSF_VOLTAGE_LOW_WARNING]; 6791 6792 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_VOLTAGE) 6793 flags |= RDP_OET_HIGH_ALARM; 6794 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_VOLTAGE) 6795 flags |= RDP_OET_LOW_ALARM; 6796 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_VOLTAGE) 6797 flags |= RDP_OET_HIGH_WARNING; 6798 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_VOLTAGE) 6799 flags |= RDP_OET_LOW_WARNING; 6800 6801 flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT); 6802 desc->oed_info.function_flags = cpu_to_be32(flags); 6803 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6804 return sizeof(struct fc_rdp_oed_sfp_desc); 6805 } 6806 6807 static uint32_t 6808 lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba *phba, 6809 struct fc_rdp_oed_sfp_desc *desc, 6810 uint8_t *page_a2) 6811 { 6812 uint32_t flags = 0; 6813 6814 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6815 6816 desc->oed_info.hi_alarm = page_a2[SSF_BIAS_HIGH_ALARM]; 6817 desc->oed_info.lo_alarm = page_a2[SSF_BIAS_LOW_ALARM]; 6818 desc->oed_info.hi_warning = page_a2[SSF_BIAS_HIGH_WARNING]; 6819 desc->oed_info.lo_warning = page_a2[SSF_BIAS_LOW_WARNING]; 6820 6821 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXBIAS) 6822 flags |= RDP_OET_HIGH_ALARM; 6823 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXBIAS) 6824 flags |= RDP_OET_LOW_ALARM; 6825 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXBIAS) 6826 flags |= RDP_OET_HIGH_WARNING; 6827 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXBIAS) 6828 flags |= RDP_OET_LOW_WARNING; 6829 6830 flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT); 6831 desc->oed_info.function_flags = cpu_to_be32(flags); 6832 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6833 return sizeof(struct fc_rdp_oed_sfp_desc); 6834 } 6835 6836 static uint32_t 6837 lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba *phba, 6838 struct fc_rdp_oed_sfp_desc *desc, 6839 uint8_t *page_a2) 6840 { 6841 uint32_t flags = 0; 6842 6843 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6844 6845 desc->oed_info.hi_alarm = page_a2[SSF_TXPOWER_HIGH_ALARM]; 6846 desc->oed_info.lo_alarm = page_a2[SSF_TXPOWER_LOW_ALARM]; 6847 desc->oed_info.hi_warning = page_a2[SSF_TXPOWER_HIGH_WARNING]; 6848 desc->oed_info.lo_warning = page_a2[SSF_TXPOWER_LOW_WARNING]; 6849 6850 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXPOWER) 6851 flags |= RDP_OET_HIGH_ALARM; 6852 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXPOWER) 6853 flags |= RDP_OET_LOW_ALARM; 6854 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXPOWER) 6855 flags |= RDP_OET_HIGH_WARNING; 6856 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXPOWER) 6857 flags |= RDP_OET_LOW_WARNING; 6858 6859 flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT); 6860 desc->oed_info.function_flags = cpu_to_be32(flags); 6861 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6862 return sizeof(struct fc_rdp_oed_sfp_desc); 6863 } 6864 6865 6866 static uint32_t 6867 lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba *phba, 6868 struct fc_rdp_oed_sfp_desc *desc, 6869 uint8_t *page_a2) 6870 { 6871 uint32_t flags = 0; 6872 6873 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6874 6875 desc->oed_info.hi_alarm = page_a2[SSF_RXPOWER_HIGH_ALARM]; 6876 desc->oed_info.lo_alarm = page_a2[SSF_RXPOWER_LOW_ALARM]; 6877 desc->oed_info.hi_warning = page_a2[SSF_RXPOWER_HIGH_WARNING]; 6878 desc->oed_info.lo_warning = page_a2[SSF_RXPOWER_LOW_WARNING]; 6879 6880 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_RXPOWER) 6881 flags |= RDP_OET_HIGH_ALARM; 6882 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_RXPOWER) 6883 flags |= RDP_OET_LOW_ALARM; 6884 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_RXPOWER) 6885 flags |= RDP_OET_HIGH_WARNING; 6886 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_RXPOWER) 6887 flags |= RDP_OET_LOW_WARNING; 6888 6889 flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT); 6890 desc->oed_info.function_flags = cpu_to_be32(flags); 6891 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6892 return sizeof(struct fc_rdp_oed_sfp_desc); 6893 } 6894 6895 static uint32_t 6896 lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc, 6897 uint8_t *page_a0, struct lpfc_vport *vport) 6898 { 6899 desc->tag = cpu_to_be32(RDP_OPD_DESC_TAG); 6900 memcpy(desc->opd_info.vendor_name, &page_a0[SSF_VENDOR_NAME], 16); 6901 memcpy(desc->opd_info.model_number, &page_a0[SSF_VENDOR_PN], 16); 6902 memcpy(desc->opd_info.serial_number, &page_a0[SSF_VENDOR_SN], 16); 6903 memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 4); 6904 memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8); 6905 desc->length = cpu_to_be32(sizeof(desc->opd_info)); 6906 return sizeof(struct fc_rdp_opd_sfp_desc); 6907 } 6908 6909 static uint32_t 6910 lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat) 6911 { 6912 if (bf_get(lpfc_read_link_stat_gec2, stat) == 0) 6913 return 0; 6914 desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG); 6915 6916 desc->info.CorrectedBlocks = 6917 cpu_to_be32(stat->fecCorrBlkCount); 6918 desc->info.UncorrectableBlocks = 6919 cpu_to_be32(stat->fecUncorrBlkCount); 6920 6921 desc->length = cpu_to_be32(sizeof(desc->info)); 6922 6923 return sizeof(struct fc_fec_rdp_desc); 6924 } 6925 6926 static uint32_t 6927 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba) 6928 { 6929 uint16_t rdp_cap = 0; 6930 uint16_t rdp_speed; 6931 6932 desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG); 6933 6934 switch (phba->fc_linkspeed) { 6935 case LPFC_LINK_SPEED_1GHZ: 6936 rdp_speed = RDP_PS_1GB; 6937 break; 6938 case LPFC_LINK_SPEED_2GHZ: 6939 rdp_speed = RDP_PS_2GB; 6940 break; 6941 case LPFC_LINK_SPEED_4GHZ: 6942 rdp_speed = RDP_PS_4GB; 6943 break; 6944 case LPFC_LINK_SPEED_8GHZ: 6945 rdp_speed = RDP_PS_8GB; 6946 break; 6947 case LPFC_LINK_SPEED_10GHZ: 6948 rdp_speed = RDP_PS_10GB; 6949 break; 6950 case LPFC_LINK_SPEED_16GHZ: 6951 rdp_speed = RDP_PS_16GB; 6952 break; 6953 case LPFC_LINK_SPEED_32GHZ: 6954 rdp_speed = RDP_PS_32GB; 6955 break; 6956 case LPFC_LINK_SPEED_64GHZ: 6957 rdp_speed = RDP_PS_64GB; 6958 break; 6959 case LPFC_LINK_SPEED_128GHZ: 6960 rdp_speed = RDP_PS_128GB; 6961 break; 6962 case LPFC_LINK_SPEED_256GHZ: 6963 rdp_speed = RDP_PS_256GB; 6964 break; 6965 default: 6966 rdp_speed = RDP_PS_UNKNOWN; 6967 break; 6968 } 6969 6970 desc->info.port_speed.speed = cpu_to_be16(rdp_speed); 6971 6972 if (phba->lmt & LMT_256Gb) 6973 rdp_cap |= RDP_PS_256GB; 6974 if (phba->lmt & LMT_128Gb) 6975 rdp_cap |= RDP_PS_128GB; 6976 if (phba->lmt & LMT_64Gb) 6977 rdp_cap |= RDP_PS_64GB; 6978 if (phba->lmt & LMT_32Gb) 6979 rdp_cap |= RDP_PS_32GB; 6980 if (phba->lmt & LMT_16Gb) 6981 rdp_cap |= RDP_PS_16GB; 6982 if (phba->lmt & LMT_10Gb) 6983 rdp_cap |= RDP_PS_10GB; 6984 if (phba->lmt & LMT_8Gb) 6985 rdp_cap |= RDP_PS_8GB; 6986 if (phba->lmt & LMT_4Gb) 6987 rdp_cap |= RDP_PS_4GB; 6988 if (phba->lmt & LMT_2Gb) 6989 rdp_cap |= RDP_PS_2GB; 6990 if (phba->lmt & LMT_1Gb) 6991 rdp_cap |= RDP_PS_1GB; 6992 6993 if (rdp_cap == 0) 6994 rdp_cap = RDP_CAP_UNKNOWN; 6995 if (phba->cfg_link_speed != LPFC_USER_LINK_SPEED_AUTO) 6996 rdp_cap |= RDP_CAP_USER_CONFIGURED; 6997 6998 desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap); 6999 desc->length = cpu_to_be32(sizeof(desc->info)); 7000 return sizeof(struct fc_rdp_port_speed_desc); 7001 } 7002 7003 static uint32_t 7004 lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc, 7005 struct lpfc_vport *vport) 7006 { 7007 7008 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG); 7009 7010 memcpy(desc->port_names.wwnn, &vport->fc_nodename, 7011 sizeof(desc->port_names.wwnn)); 7012 7013 memcpy(desc->port_names.wwpn, &vport->fc_portname, 7014 sizeof(desc->port_names.wwpn)); 7015 7016 desc->length = cpu_to_be32(sizeof(desc->port_names)); 7017 return sizeof(struct fc_rdp_port_name_desc); 7018 } 7019 7020 static uint32_t 7021 lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc, 7022 struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 7023 { 7024 7025 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG); 7026 if (vport->fc_flag & FC_FABRIC) { 7027 memcpy(desc->port_names.wwnn, &vport->fabric_nodename, 7028 sizeof(desc->port_names.wwnn)); 7029 7030 memcpy(desc->port_names.wwpn, &vport->fabric_portname, 7031 sizeof(desc->port_names.wwpn)); 7032 } else { /* Point to Point */ 7033 memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename, 7034 sizeof(desc->port_names.wwnn)); 7035 7036 memcpy(desc->port_names.wwpn, &ndlp->nlp_portname, 7037 sizeof(desc->port_names.wwpn)); 7038 } 7039 7040 desc->length = cpu_to_be32(sizeof(desc->port_names)); 7041 return sizeof(struct fc_rdp_port_name_desc); 7042 } 7043 7044 static void 7045 lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context, 7046 int status) 7047 { 7048 struct lpfc_nodelist *ndlp = rdp_context->ndlp; 7049 struct lpfc_vport *vport = ndlp->vport; 7050 struct lpfc_iocbq *elsiocb; 7051 struct ulp_bde64 *bpl; 7052 IOCB_t *icmd; 7053 union lpfc_wqe128 *wqe; 7054 uint8_t *pcmd; 7055 struct ls_rjt *stat; 7056 struct fc_rdp_res_frame *rdp_res; 7057 uint32_t cmdsize, len; 7058 uint16_t *flag_ptr; 7059 int rc; 7060 u32 ulp_context; 7061 7062 if (status != SUCCESS) 7063 goto error; 7064 7065 /* This will change once we know the true size of the RDP payload */ 7066 cmdsize = sizeof(struct fc_rdp_res_frame); 7067 7068 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, 7069 lpfc_max_els_tries, rdp_context->ndlp, 7070 rdp_context->ndlp->nlp_DID, ELS_CMD_ACC); 7071 if (!elsiocb) 7072 goto free_rdp_context; 7073 7074 ulp_context = get_job_ulpcontext(phba, elsiocb); 7075 if (phba->sli_rev == LPFC_SLI_REV4) { 7076 wqe = &elsiocb->wqe; 7077 /* ox-id of the frame */ 7078 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7079 rdp_context->ox_id); 7080 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 7081 rdp_context->rx_id); 7082 } else { 7083 icmd = &elsiocb->iocb; 7084 icmd->ulpContext = rdp_context->rx_id; 7085 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id; 7086 } 7087 7088 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 7089 "2171 Xmit RDP response tag x%x xri x%x, " 7090 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x", 7091 elsiocb->iotag, ulp_context, 7092 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 7093 ndlp->nlp_rpi); 7094 rdp_res = (struct fc_rdp_res_frame *)elsiocb->cmd_dmabuf->virt; 7095 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7096 memset(pcmd, 0, sizeof(struct fc_rdp_res_frame)); 7097 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 7098 7099 /* Update Alarm and Warning */ 7100 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_ALARM_FLAGS); 7101 phba->sfp_alarm |= *flag_ptr; 7102 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_WARNING_FLAGS); 7103 phba->sfp_warning |= *flag_ptr; 7104 7105 /* For RDP payload */ 7106 len = 8; 7107 len += lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc *) 7108 (len + pcmd), ELS_CMD_RDP); 7109 7110 len += lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc *)(len + pcmd), 7111 rdp_context->page_a0, rdp_context->page_a2); 7112 len += lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc *)(len + pcmd), 7113 phba); 7114 len += lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc *) 7115 (len + pcmd), &rdp_context->link_stat); 7116 len += lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc *) 7117 (len + pcmd), vport); 7118 len += lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc *) 7119 (len + pcmd), vport, ndlp); 7120 len += lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc *)(len + pcmd), 7121 &rdp_context->link_stat); 7122 len += lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc *)(len + pcmd), 7123 &rdp_context->link_stat, vport); 7124 len += lpfc_rdp_res_oed_temp_desc(phba, 7125 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7126 rdp_context->page_a2); 7127 len += lpfc_rdp_res_oed_voltage_desc(phba, 7128 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7129 rdp_context->page_a2); 7130 len += lpfc_rdp_res_oed_txbias_desc(phba, 7131 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7132 rdp_context->page_a2); 7133 len += lpfc_rdp_res_oed_txpower_desc(phba, 7134 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7135 rdp_context->page_a2); 7136 len += lpfc_rdp_res_oed_rxpower_desc(phba, 7137 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7138 rdp_context->page_a2); 7139 len += lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc *)(len + pcmd), 7140 rdp_context->page_a0, vport); 7141 7142 rdp_res->length = cpu_to_be32(len - 8); 7143 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7144 7145 /* Now that we know the true size of the payload, update the BPL */ 7146 bpl = (struct ulp_bde64 *)elsiocb->bpl_dmabuf->virt; 7147 bpl->tus.f.bdeSize = len; 7148 bpl->tus.f.bdeFlags = 0; 7149 bpl->tus.w = le32_to_cpu(bpl->tus.w); 7150 7151 phba->fc_stat.elsXmitACC++; 7152 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7153 if (!elsiocb->ndlp) { 7154 lpfc_els_free_iocb(phba, elsiocb); 7155 goto free_rdp_context; 7156 } 7157 7158 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7159 if (rc == IOCB_ERROR) { 7160 lpfc_els_free_iocb(phba, elsiocb); 7161 lpfc_nlp_put(ndlp); 7162 } 7163 7164 goto free_rdp_context; 7165 7166 error: 7167 cmdsize = 2 * sizeof(uint32_t); 7168 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries, 7169 ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT); 7170 if (!elsiocb) 7171 goto free_rdp_context; 7172 7173 if (phba->sli_rev == LPFC_SLI_REV4) { 7174 wqe = &elsiocb->wqe; 7175 /* ox-id of the frame */ 7176 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7177 rdp_context->ox_id); 7178 bf_set(wqe_ctxt_tag, 7179 &wqe->xmit_els_rsp.wqe_com, 7180 rdp_context->rx_id); 7181 } else { 7182 icmd = &elsiocb->iocb; 7183 icmd->ulpContext = rdp_context->rx_id; 7184 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id; 7185 } 7186 7187 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7188 7189 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; 7190 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t)); 7191 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 7192 7193 phba->fc_stat.elsXmitLSRJT++; 7194 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 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 free_rdp_context: 7208 /* This reference put is for the original unsolicited RDP. If the 7209 * prep failed, there is no reference to remove. 7210 */ 7211 lpfc_nlp_put(ndlp); 7212 kfree(rdp_context); 7213 } 7214 7215 static int 7216 lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context) 7217 { 7218 LPFC_MBOXQ_t *mbox = NULL; 7219 int rc; 7220 7221 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7222 if (!mbox) { 7223 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS, 7224 "7105 failed to allocate mailbox memory"); 7225 return 1; 7226 } 7227 7228 if (lpfc_sli4_dump_page_a0(phba, mbox)) 7229 goto rdp_fail; 7230 mbox->vport = rdp_context->ndlp->vport; 7231 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0; 7232 mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context; 7233 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 7234 if (rc == MBX_NOT_FINISHED) { 7235 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 7236 return 1; 7237 } 7238 7239 return 0; 7240 7241 rdp_fail: 7242 mempool_free(mbox, phba->mbox_mem_pool); 7243 return 1; 7244 } 7245 7246 int lpfc_get_sfp_info_wait(struct lpfc_hba *phba, 7247 struct lpfc_rdp_context *rdp_context) 7248 { 7249 LPFC_MBOXQ_t *mbox = NULL; 7250 int rc; 7251 struct lpfc_dmabuf *mp; 7252 struct lpfc_dmabuf *mpsave; 7253 void *virt; 7254 MAILBOX_t *mb; 7255 7256 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7257 if (!mbox) { 7258 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS, 7259 "7205 failed to allocate mailbox memory"); 7260 return 1; 7261 } 7262 7263 if (lpfc_sli4_dump_page_a0(phba, mbox)) 7264 goto sfp_fail; 7265 mp = mbox->ctx_buf; 7266 mpsave = mp; 7267 virt = mp->virt; 7268 if (phba->sli_rev < LPFC_SLI_REV4) { 7269 mb = &mbox->u.mb; 7270 mb->un.varDmp.cv = 1; 7271 mb->un.varDmp.co = 1; 7272 mb->un.varWords[2] = 0; 7273 mb->un.varWords[3] = DMP_SFF_PAGE_A0_SIZE / 4; 7274 mb->un.varWords[4] = 0; 7275 mb->un.varWords[5] = 0; 7276 mb->un.varWords[6] = 0; 7277 mb->un.varWords[7] = 0; 7278 mb->un.varWords[8] = 0; 7279 mb->un.varWords[9] = 0; 7280 mb->un.varWords[10] = 0; 7281 mbox->in_ext_byte_len = DMP_SFF_PAGE_A0_SIZE; 7282 mbox->out_ext_byte_len = DMP_SFF_PAGE_A0_SIZE; 7283 mbox->mbox_offset_word = 5; 7284 mbox->ctx_buf = virt; 7285 } else { 7286 bf_set(lpfc_mbx_memory_dump_type3_length, 7287 &mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A0_SIZE); 7288 mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys); 7289 mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys); 7290 } 7291 mbox->vport = phba->pport; 7292 mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context; 7293 7294 rc = lpfc_sli_issue_mbox_wait(phba, mbox, 30); 7295 if (rc == MBX_NOT_FINISHED) { 7296 rc = 1; 7297 goto error; 7298 } 7299 7300 if (phba->sli_rev == LPFC_SLI_REV4) 7301 mp = (struct lpfc_dmabuf *)(mbox->ctx_buf); 7302 else 7303 mp = mpsave; 7304 7305 if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) { 7306 rc = 1; 7307 goto error; 7308 } 7309 7310 lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a0, 7311 DMP_SFF_PAGE_A0_SIZE); 7312 7313 memset(mbox, 0, sizeof(*mbox)); 7314 memset(mp->virt, 0, DMP_SFF_PAGE_A2_SIZE); 7315 INIT_LIST_HEAD(&mp->list); 7316 7317 /* save address for completion */ 7318 mbox->ctx_buf = mp; 7319 mbox->vport = phba->pport; 7320 7321 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_DUMP_MEMORY); 7322 bf_set(lpfc_mbx_memory_dump_type3_type, 7323 &mbox->u.mqe.un.mem_dump_type3, DMP_LMSD); 7324 bf_set(lpfc_mbx_memory_dump_type3_link, 7325 &mbox->u.mqe.un.mem_dump_type3, phba->sli4_hba.physical_port); 7326 bf_set(lpfc_mbx_memory_dump_type3_page_no, 7327 &mbox->u.mqe.un.mem_dump_type3, DMP_PAGE_A2); 7328 if (phba->sli_rev < LPFC_SLI_REV4) { 7329 mb = &mbox->u.mb; 7330 mb->un.varDmp.cv = 1; 7331 mb->un.varDmp.co = 1; 7332 mb->un.varWords[2] = 0; 7333 mb->un.varWords[3] = DMP_SFF_PAGE_A2_SIZE / 4; 7334 mb->un.varWords[4] = 0; 7335 mb->un.varWords[5] = 0; 7336 mb->un.varWords[6] = 0; 7337 mb->un.varWords[7] = 0; 7338 mb->un.varWords[8] = 0; 7339 mb->un.varWords[9] = 0; 7340 mb->un.varWords[10] = 0; 7341 mbox->in_ext_byte_len = DMP_SFF_PAGE_A2_SIZE; 7342 mbox->out_ext_byte_len = DMP_SFF_PAGE_A2_SIZE; 7343 mbox->mbox_offset_word = 5; 7344 mbox->ctx_buf = virt; 7345 } else { 7346 bf_set(lpfc_mbx_memory_dump_type3_length, 7347 &mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A2_SIZE); 7348 mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys); 7349 mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys); 7350 } 7351 7352 mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context; 7353 rc = lpfc_sli_issue_mbox_wait(phba, mbox, 30); 7354 if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) { 7355 rc = 1; 7356 goto error; 7357 } 7358 rc = 0; 7359 7360 lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a2, 7361 DMP_SFF_PAGE_A2_SIZE); 7362 7363 error: 7364 mbox->ctx_buf = mpsave; 7365 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 7366 7367 return rc; 7368 7369 sfp_fail: 7370 mempool_free(mbox, phba->mbox_mem_pool); 7371 return 1; 7372 } 7373 7374 /* 7375 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS. 7376 * @vport: pointer to a host virtual N_Port data structure. 7377 * @cmdiocb: pointer to lpfc command iocb data structure. 7378 * @ndlp: pointer to a node-list data structure. 7379 * 7380 * This routine processes an unsolicited RDP(Read Diagnostic Parameters) 7381 * IOCB. First, the payload of the unsolicited RDP is checked. 7382 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3 7383 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2, 7384 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl 7385 * gather all data and send RDP response. 7386 * 7387 * Return code 7388 * 0 - Sent the acc response 7389 * 1 - Sent the reject response. 7390 */ 7391 static int 7392 lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 7393 struct lpfc_nodelist *ndlp) 7394 { 7395 struct lpfc_hba *phba = vport->phba; 7396 struct lpfc_dmabuf *pcmd; 7397 uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE; 7398 struct fc_rdp_req_frame *rdp_req; 7399 struct lpfc_rdp_context *rdp_context; 7400 union lpfc_wqe128 *cmd = NULL; 7401 struct ls_rjt stat; 7402 7403 if (phba->sli_rev < LPFC_SLI_REV4 || 7404 bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 7405 LPFC_SLI_INTF_IF_TYPE_2) { 7406 rjt_err = LSRJT_UNABLE_TPC; 7407 rjt_expl = LSEXP_REQ_UNSUPPORTED; 7408 goto error; 7409 } 7410 7411 if (phba->sli_rev < LPFC_SLI_REV4 || (phba->hba_flag & HBA_FCOE_MODE)) { 7412 rjt_err = LSRJT_UNABLE_TPC; 7413 rjt_expl = LSEXP_REQ_UNSUPPORTED; 7414 goto error; 7415 } 7416 7417 pcmd = cmdiocb->cmd_dmabuf; 7418 rdp_req = (struct fc_rdp_req_frame *) pcmd->virt; 7419 7420 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 7421 "2422 ELS RDP Request " 7422 "dec len %d tag x%x port_id %d len %d\n", 7423 be32_to_cpu(rdp_req->rdp_des_length), 7424 be32_to_cpu(rdp_req->nport_id_desc.tag), 7425 be32_to_cpu(rdp_req->nport_id_desc.nport_id), 7426 be32_to_cpu(rdp_req->nport_id_desc.length)); 7427 7428 if (sizeof(struct fc_rdp_nport_desc) != 7429 be32_to_cpu(rdp_req->rdp_des_length)) 7430 goto rjt_logerr; 7431 if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag)) 7432 goto rjt_logerr; 7433 if (RDP_NPORT_ID_SIZE != 7434 be32_to_cpu(rdp_req->nport_id_desc.length)) 7435 goto rjt_logerr; 7436 rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL); 7437 if (!rdp_context) { 7438 rjt_err = LSRJT_UNABLE_TPC; 7439 goto error; 7440 } 7441 7442 cmd = &cmdiocb->wqe; 7443 rdp_context->ndlp = lpfc_nlp_get(ndlp); 7444 if (!rdp_context->ndlp) { 7445 kfree(rdp_context); 7446 rjt_err = LSRJT_UNABLE_TPC; 7447 goto error; 7448 } 7449 rdp_context->ox_id = bf_get(wqe_rcvoxid, 7450 &cmd->xmit_els_rsp.wqe_com); 7451 rdp_context->rx_id = bf_get(wqe_ctxt_tag, 7452 &cmd->xmit_els_rsp.wqe_com); 7453 rdp_context->cmpl = lpfc_els_rdp_cmpl; 7454 if (lpfc_get_rdp_info(phba, rdp_context)) { 7455 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS, 7456 "2423 Unable to send mailbox"); 7457 kfree(rdp_context); 7458 rjt_err = LSRJT_UNABLE_TPC; 7459 lpfc_nlp_put(ndlp); 7460 goto error; 7461 } 7462 7463 return 0; 7464 7465 rjt_logerr: 7466 rjt_err = LSRJT_LOGICAL_ERR; 7467 7468 error: 7469 memset(&stat, 0, sizeof(stat)); 7470 stat.un.b.lsRjtRsnCode = rjt_err; 7471 stat.un.b.lsRjtRsnCodeExp = rjt_expl; 7472 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 7473 return 1; 7474 } 7475 7476 7477 static void 7478 lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 7479 { 7480 MAILBOX_t *mb; 7481 IOCB_t *icmd; 7482 union lpfc_wqe128 *wqe; 7483 uint8_t *pcmd; 7484 struct lpfc_iocbq *elsiocb; 7485 struct lpfc_nodelist *ndlp; 7486 struct ls_rjt *stat; 7487 union lpfc_sli4_cfg_shdr *shdr; 7488 struct lpfc_lcb_context *lcb_context; 7489 struct fc_lcb_res_frame *lcb_res; 7490 uint32_t cmdsize, shdr_status, shdr_add_status; 7491 int rc; 7492 7493 mb = &pmb->u.mb; 7494 lcb_context = (struct lpfc_lcb_context *)pmb->ctx_ndlp; 7495 ndlp = lcb_context->ndlp; 7496 pmb->ctx_ndlp = NULL; 7497 pmb->ctx_buf = NULL; 7498 7499 shdr = (union lpfc_sli4_cfg_shdr *) 7500 &pmb->u.mqe.un.beacon_config.header.cfg_shdr; 7501 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7502 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7503 7504 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX, 7505 "0194 SET_BEACON_CONFIG mailbox " 7506 "completed with status x%x add_status x%x," 7507 " mbx status x%x\n", 7508 shdr_status, shdr_add_status, mb->mbxStatus); 7509 7510 if ((mb->mbxStatus != MBX_SUCCESS) || shdr_status || 7511 (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE) || 7512 (shdr_add_status == ADD_STATUS_INVALID_REQUEST)) { 7513 mempool_free(pmb, phba->mbox_mem_pool); 7514 goto error; 7515 } 7516 7517 mempool_free(pmb, phba->mbox_mem_pool); 7518 cmdsize = sizeof(struct fc_lcb_res_frame); 7519 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 7520 lpfc_max_els_tries, ndlp, 7521 ndlp->nlp_DID, ELS_CMD_ACC); 7522 7523 /* Decrement the ndlp reference count from previous mbox command */ 7524 lpfc_nlp_put(ndlp); 7525 7526 if (!elsiocb) 7527 goto free_lcb_context; 7528 7529 lcb_res = (struct fc_lcb_res_frame *)elsiocb->cmd_dmabuf->virt; 7530 7531 memset(lcb_res, 0, sizeof(struct fc_lcb_res_frame)); 7532 7533 if (phba->sli_rev == LPFC_SLI_REV4) { 7534 wqe = &elsiocb->wqe; 7535 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, lcb_context->rx_id); 7536 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7537 lcb_context->ox_id); 7538 } else { 7539 icmd = &elsiocb->iocb; 7540 icmd->ulpContext = lcb_context->rx_id; 7541 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id; 7542 } 7543 7544 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7545 *((uint32_t *)(pcmd)) = ELS_CMD_ACC; 7546 lcb_res->lcb_sub_command = lcb_context->sub_command; 7547 lcb_res->lcb_type = lcb_context->type; 7548 lcb_res->capability = lcb_context->capability; 7549 lcb_res->lcb_frequency = lcb_context->frequency; 7550 lcb_res->lcb_duration = lcb_context->duration; 7551 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7552 phba->fc_stat.elsXmitACC++; 7553 7554 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7555 if (!elsiocb->ndlp) { 7556 lpfc_els_free_iocb(phba, elsiocb); 7557 goto out; 7558 } 7559 7560 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7561 if (rc == IOCB_ERROR) { 7562 lpfc_els_free_iocb(phba, elsiocb); 7563 lpfc_nlp_put(ndlp); 7564 } 7565 out: 7566 kfree(lcb_context); 7567 return; 7568 7569 error: 7570 cmdsize = sizeof(struct fc_lcb_res_frame); 7571 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 7572 lpfc_max_els_tries, ndlp, 7573 ndlp->nlp_DID, ELS_CMD_LS_RJT); 7574 lpfc_nlp_put(ndlp); 7575 if (!elsiocb) 7576 goto free_lcb_context; 7577 7578 if (phba->sli_rev == LPFC_SLI_REV4) { 7579 wqe = &elsiocb->wqe; 7580 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, lcb_context->rx_id); 7581 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7582 lcb_context->ox_id); 7583 } else { 7584 icmd = &elsiocb->iocb; 7585 icmd->ulpContext = lcb_context->rx_id; 7586 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id; 7587 } 7588 7589 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7590 7591 *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT; 7592 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t)); 7593 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 7594 7595 if (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE) 7596 stat->un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 7597 7598 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7599 phba->fc_stat.elsXmitLSRJT++; 7600 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7601 if (!elsiocb->ndlp) { 7602 lpfc_els_free_iocb(phba, elsiocb); 7603 goto free_lcb_context; 7604 } 7605 7606 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7607 if (rc == IOCB_ERROR) { 7608 lpfc_els_free_iocb(phba, elsiocb); 7609 lpfc_nlp_put(ndlp); 7610 } 7611 free_lcb_context: 7612 kfree(lcb_context); 7613 } 7614 7615 static int 7616 lpfc_sli4_set_beacon(struct lpfc_vport *vport, 7617 struct lpfc_lcb_context *lcb_context, 7618 uint32_t beacon_state) 7619 { 7620 struct lpfc_hba *phba = vport->phba; 7621 union lpfc_sli4_cfg_shdr *cfg_shdr; 7622 LPFC_MBOXQ_t *mbox = NULL; 7623 uint32_t len; 7624 int rc; 7625 7626 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7627 if (!mbox) 7628 return 1; 7629 7630 cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr; 7631 len = sizeof(struct lpfc_mbx_set_beacon_config) - 7632 sizeof(struct lpfc_sli4_cfg_mhdr); 7633 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, 7634 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len, 7635 LPFC_SLI4_MBX_EMBED); 7636 mbox->ctx_ndlp = (void *)lcb_context; 7637 mbox->vport = phba->pport; 7638 mbox->mbox_cmpl = lpfc_els_lcb_rsp; 7639 bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config, 7640 phba->sli4_hba.physical_port); 7641 bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config, 7642 beacon_state); 7643 mbox->u.mqe.un.beacon_config.word5 = 0; /* Reserved */ 7644 7645 /* 7646 * Check bv1s bit before issuing the mailbox 7647 * if bv1s == 1, LCB V1 supported 7648 * else, LCB V0 supported 7649 */ 7650 7651 if (phba->sli4_hba.pc_sli4_params.bv1s) { 7652 /* COMMON_SET_BEACON_CONFIG_V1 */ 7653 cfg_shdr->request.word9 = BEACON_VERSION_V1; 7654 lcb_context->capability |= LCB_CAPABILITY_DURATION; 7655 bf_set(lpfc_mbx_set_beacon_port_type, 7656 &mbox->u.mqe.un.beacon_config, 0); 7657 bf_set(lpfc_mbx_set_beacon_duration_v1, 7658 &mbox->u.mqe.un.beacon_config, 7659 be16_to_cpu(lcb_context->duration)); 7660 } else { 7661 /* COMMON_SET_BEACON_CONFIG_V0 */ 7662 if (be16_to_cpu(lcb_context->duration) != 0) { 7663 mempool_free(mbox, phba->mbox_mem_pool); 7664 return 1; 7665 } 7666 cfg_shdr->request.word9 = BEACON_VERSION_V0; 7667 lcb_context->capability &= ~(LCB_CAPABILITY_DURATION); 7668 bf_set(lpfc_mbx_set_beacon_state, 7669 &mbox->u.mqe.un.beacon_config, beacon_state); 7670 bf_set(lpfc_mbx_set_beacon_port_type, 7671 &mbox->u.mqe.un.beacon_config, 1); 7672 bf_set(lpfc_mbx_set_beacon_duration, 7673 &mbox->u.mqe.un.beacon_config, 7674 be16_to_cpu(lcb_context->duration)); 7675 } 7676 7677 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 7678 if (rc == MBX_NOT_FINISHED) { 7679 mempool_free(mbox, phba->mbox_mem_pool); 7680 return 1; 7681 } 7682 7683 return 0; 7684 } 7685 7686 7687 /** 7688 * lpfc_els_rcv_lcb - Process an unsolicited LCB 7689 * @vport: pointer to a host virtual N_Port data structure. 7690 * @cmdiocb: pointer to lpfc command iocb data structure. 7691 * @ndlp: pointer to a node-list data structure. 7692 * 7693 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB. 7694 * First, the payload of the unsolicited LCB is checked. 7695 * Then based on Subcommand beacon will either turn on or off. 7696 * 7697 * Return code 7698 * 0 - Sent the acc response 7699 * 1 - Sent the reject response. 7700 **/ 7701 static int 7702 lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 7703 struct lpfc_nodelist *ndlp) 7704 { 7705 struct lpfc_hba *phba = vport->phba; 7706 struct lpfc_dmabuf *pcmd; 7707 uint8_t *lp; 7708 struct fc_lcb_request_frame *beacon; 7709 struct lpfc_lcb_context *lcb_context; 7710 u8 state, rjt_err = 0; 7711 struct ls_rjt stat; 7712 7713 pcmd = cmdiocb->cmd_dmabuf; 7714 lp = (uint8_t *)pcmd->virt; 7715 beacon = (struct fc_lcb_request_frame *)pcmd->virt; 7716 7717 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 7718 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x " 7719 "type x%x frequency %x duration x%x\n", 7720 lp[0], lp[1], lp[2], 7721 beacon->lcb_command, 7722 beacon->lcb_sub_command, 7723 beacon->lcb_type, 7724 beacon->lcb_frequency, 7725 be16_to_cpu(beacon->lcb_duration)); 7726 7727 if (beacon->lcb_sub_command != LPFC_LCB_ON && 7728 beacon->lcb_sub_command != LPFC_LCB_OFF) { 7729 rjt_err = LSRJT_CMD_UNSUPPORTED; 7730 goto rjt; 7731 } 7732 7733 if (phba->sli_rev < LPFC_SLI_REV4 || 7734 phba->hba_flag & HBA_FCOE_MODE || 7735 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 7736 LPFC_SLI_INTF_IF_TYPE_2)) { 7737 rjt_err = LSRJT_CMD_UNSUPPORTED; 7738 goto rjt; 7739 } 7740 7741 lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL); 7742 if (!lcb_context) { 7743 rjt_err = LSRJT_UNABLE_TPC; 7744 goto rjt; 7745 } 7746 7747 state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0; 7748 lcb_context->sub_command = beacon->lcb_sub_command; 7749 lcb_context->capability = 0; 7750 lcb_context->type = beacon->lcb_type; 7751 lcb_context->frequency = beacon->lcb_frequency; 7752 lcb_context->duration = beacon->lcb_duration; 7753 lcb_context->ox_id = get_job_rcvoxid(phba, cmdiocb); 7754 lcb_context->rx_id = get_job_ulpcontext(phba, cmdiocb); 7755 lcb_context->ndlp = lpfc_nlp_get(ndlp); 7756 if (!lcb_context->ndlp) { 7757 rjt_err = LSRJT_UNABLE_TPC; 7758 goto rjt_free; 7759 } 7760 7761 if (lpfc_sli4_set_beacon(vport, lcb_context, state)) { 7762 lpfc_printf_vlog(ndlp->vport, KERN_ERR, LOG_TRACE_EVENT, 7763 "0193 failed to send mail box"); 7764 lpfc_nlp_put(ndlp); 7765 rjt_err = LSRJT_UNABLE_TPC; 7766 goto rjt_free; 7767 } 7768 return 0; 7769 7770 rjt_free: 7771 kfree(lcb_context); 7772 rjt: 7773 memset(&stat, 0, sizeof(stat)); 7774 stat.un.b.lsRjtRsnCode = rjt_err; 7775 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 7776 return 1; 7777 } 7778 7779 7780 /** 7781 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport 7782 * @vport: pointer to a host virtual N_Port data structure. 7783 * 7784 * This routine cleans up any Registration State Change Notification 7785 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the 7786 * @vport together with the host_lock is used to prevent multiple thread 7787 * trying to access the RSCN array on a same @vport at the same time. 7788 **/ 7789 void 7790 lpfc_els_flush_rscn(struct lpfc_vport *vport) 7791 { 7792 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7793 struct lpfc_hba *phba = vport->phba; 7794 int i; 7795 7796 spin_lock_irq(shost->host_lock); 7797 if (vport->fc_rscn_flush) { 7798 /* Another thread is walking fc_rscn_id_list on this vport */ 7799 spin_unlock_irq(shost->host_lock); 7800 return; 7801 } 7802 /* Indicate we are walking lpfc_els_flush_rscn on this vport */ 7803 vport->fc_rscn_flush = 1; 7804 spin_unlock_irq(shost->host_lock); 7805 7806 for (i = 0; i < vport->fc_rscn_id_cnt; i++) { 7807 lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); 7808 vport->fc_rscn_id_list[i] = NULL; 7809 } 7810 spin_lock_irq(shost->host_lock); 7811 vport->fc_rscn_id_cnt = 0; 7812 vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY); 7813 spin_unlock_irq(shost->host_lock); 7814 lpfc_can_disctmo(vport); 7815 /* Indicate we are done walking this fc_rscn_id_list */ 7816 vport->fc_rscn_flush = 0; 7817 } 7818 7819 /** 7820 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did 7821 * @vport: pointer to a host virtual N_Port data structure. 7822 * @did: remote destination port identifier. 7823 * 7824 * This routine checks whether there is any pending Registration State 7825 * Configuration Notification (RSCN) to a @did on @vport. 7826 * 7827 * Return code 7828 * None zero - The @did matched with a pending rscn 7829 * 0 - not able to match @did with a pending rscn 7830 **/ 7831 int 7832 lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) 7833 { 7834 D_ID ns_did; 7835 D_ID rscn_did; 7836 uint32_t *lp; 7837 uint32_t payload_len, i; 7838 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7839 7840 ns_did.un.word = did; 7841 7842 /* Never match fabric nodes for RSCNs */ 7843 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) 7844 return 0; 7845 7846 /* If we are doing a FULL RSCN rediscovery, match everything */ 7847 if (vport->fc_flag & FC_RSCN_DISCOVERY) 7848 return did; 7849 7850 spin_lock_irq(shost->host_lock); 7851 if (vport->fc_rscn_flush) { 7852 /* Another thread is walking fc_rscn_id_list on this vport */ 7853 spin_unlock_irq(shost->host_lock); 7854 return 0; 7855 } 7856 /* Indicate we are walking fc_rscn_id_list on this vport */ 7857 vport->fc_rscn_flush = 1; 7858 spin_unlock_irq(shost->host_lock); 7859 for (i = 0; i < vport->fc_rscn_id_cnt; i++) { 7860 lp = vport->fc_rscn_id_list[i]->virt; 7861 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); 7862 payload_len -= sizeof(uint32_t); /* take off word 0 */ 7863 while (payload_len) { 7864 rscn_did.un.word = be32_to_cpu(*lp++); 7865 payload_len -= sizeof(uint32_t); 7866 switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) { 7867 case RSCN_ADDRESS_FORMAT_PORT: 7868 if ((ns_did.un.b.domain == rscn_did.un.b.domain) 7869 && (ns_did.un.b.area == rscn_did.un.b.area) 7870 && (ns_did.un.b.id == rscn_did.un.b.id)) 7871 goto return_did_out; 7872 break; 7873 case RSCN_ADDRESS_FORMAT_AREA: 7874 if ((ns_did.un.b.domain == rscn_did.un.b.domain) 7875 && (ns_did.un.b.area == rscn_did.un.b.area)) 7876 goto return_did_out; 7877 break; 7878 case RSCN_ADDRESS_FORMAT_DOMAIN: 7879 if (ns_did.un.b.domain == rscn_did.un.b.domain) 7880 goto return_did_out; 7881 break; 7882 case RSCN_ADDRESS_FORMAT_FABRIC: 7883 goto return_did_out; 7884 } 7885 } 7886 } 7887 /* Indicate we are done with walking fc_rscn_id_list on this vport */ 7888 vport->fc_rscn_flush = 0; 7889 return 0; 7890 return_did_out: 7891 /* Indicate we are done with walking fc_rscn_id_list on this vport */ 7892 vport->fc_rscn_flush = 0; 7893 return did; 7894 } 7895 7896 /** 7897 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn 7898 * @vport: pointer to a host virtual N_Port data structure. 7899 * 7900 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the 7901 * state machine for a @vport's nodes that are with pending RSCN (Registration 7902 * State Change Notification). 7903 * 7904 * Return code 7905 * 0 - Successful (currently alway return 0) 7906 **/ 7907 static int 7908 lpfc_rscn_recovery_check(struct lpfc_vport *vport) 7909 { 7910 struct lpfc_nodelist *ndlp = NULL, *n; 7911 7912 /* Move all affected nodes by pending RSCNs to NPR state. */ 7913 list_for_each_entry_safe(ndlp, n, &vport->fc_nodes, nlp_listp) { 7914 if ((ndlp->nlp_state == NLP_STE_UNUSED_NODE) || 7915 !lpfc_rscn_payload_check(vport, ndlp->nlp_DID)) 7916 continue; 7917 7918 /* NVME Target mode does not do RSCN Recovery. */ 7919 if (vport->phba->nvmet_support) 7920 continue; 7921 7922 /* If we are in the process of doing discovery on this 7923 * NPort, let it continue on its own. 7924 */ 7925 switch (ndlp->nlp_state) { 7926 case NLP_STE_PLOGI_ISSUE: 7927 case NLP_STE_ADISC_ISSUE: 7928 case NLP_STE_REG_LOGIN_ISSUE: 7929 case NLP_STE_PRLI_ISSUE: 7930 case NLP_STE_LOGO_ISSUE: 7931 continue; 7932 } 7933 7934 lpfc_disc_state_machine(vport, ndlp, NULL, 7935 NLP_EVT_DEVICE_RECOVERY); 7936 lpfc_cancel_retry_delay_tmo(vport, ndlp); 7937 } 7938 return 0; 7939 } 7940 7941 /** 7942 * lpfc_send_rscn_event - Send an RSCN event to management application 7943 * @vport: pointer to a host virtual N_Port data structure. 7944 * @cmdiocb: pointer to lpfc command iocb data structure. 7945 * 7946 * lpfc_send_rscn_event sends an RSCN netlink event to management 7947 * applications. 7948 */ 7949 static void 7950 lpfc_send_rscn_event(struct lpfc_vport *vport, 7951 struct lpfc_iocbq *cmdiocb) 7952 { 7953 struct lpfc_dmabuf *pcmd; 7954 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7955 uint32_t *payload_ptr; 7956 uint32_t payload_len; 7957 struct lpfc_rscn_event_header *rscn_event_data; 7958 7959 pcmd = cmdiocb->cmd_dmabuf; 7960 payload_ptr = (uint32_t *) pcmd->virt; 7961 payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK); 7962 7963 rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) + 7964 payload_len, GFP_KERNEL); 7965 if (!rscn_event_data) { 7966 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 7967 "0147 Failed to allocate memory for RSCN event\n"); 7968 return; 7969 } 7970 rscn_event_data->event_type = FC_REG_RSCN_EVENT; 7971 rscn_event_data->payload_length = payload_len; 7972 memcpy(rscn_event_data->rscn_payload, payload_ptr, 7973 payload_len); 7974 7975 fc_host_post_vendor_event(shost, 7976 fc_get_event_number(), 7977 sizeof(struct lpfc_rscn_event_header) + payload_len, 7978 (char *)rscn_event_data, 7979 LPFC_NL_VENDOR_ID); 7980 7981 kfree(rscn_event_data); 7982 } 7983 7984 /** 7985 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb 7986 * @vport: pointer to a host virtual N_Port data structure. 7987 * @cmdiocb: pointer to lpfc command iocb data structure. 7988 * @ndlp: pointer to a node-list data structure. 7989 * 7990 * This routine processes an unsolicited RSCN (Registration State Change 7991 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked 7992 * to invoke fc_host_post_event() routine to the FC transport layer. If the 7993 * discover state machine is about to begin discovery, it just accepts the 7994 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only 7995 * contains N_Port IDs for other vports on this HBA, it just accepts the 7996 * RSCN and ignore processing it. If the state machine is in the recovery 7997 * state, the fc_rscn_id_list of this @vport is walked and the 7998 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for 7999 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn() 8000 * routine is invoked to handle the RSCN event. 8001 * 8002 * Return code 8003 * 0 - Just sent the acc response 8004 * 1 - Sent the acc response and waited for name server completion 8005 **/ 8006 static int 8007 lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8008 struct lpfc_nodelist *ndlp) 8009 { 8010 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8011 struct lpfc_hba *phba = vport->phba; 8012 struct lpfc_dmabuf *pcmd; 8013 uint32_t *lp, *datap; 8014 uint32_t payload_len, length, nportid, *cmd; 8015 int rscn_cnt; 8016 int rscn_id = 0, hba_id = 0; 8017 int i, tmo; 8018 8019 pcmd = cmdiocb->cmd_dmabuf; 8020 lp = (uint32_t *) pcmd->virt; 8021 8022 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); 8023 payload_len -= sizeof(uint32_t); /* take off word 0 */ 8024 /* RSCN received */ 8025 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8026 "0214 RSCN received Data: x%x x%x x%x x%x\n", 8027 vport->fc_flag, payload_len, *lp, 8028 vport->fc_rscn_id_cnt); 8029 8030 /* Send an RSCN event to the management application */ 8031 lpfc_send_rscn_event(vport, cmdiocb); 8032 8033 for (i = 0; i < payload_len/sizeof(uint32_t); i++) 8034 fc_host_post_event(shost, fc_get_event_number(), 8035 FCH_EVT_RSCN, lp[i]); 8036 8037 /* Check if RSCN is coming from a direct-connected remote NPort */ 8038 if (vport->fc_flag & FC_PT2PT) { 8039 /* If so, just ACC it, no other action needed for now */ 8040 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 8041 "2024 pt2pt RSCN %08x Data: x%x x%x\n", 8042 *lp, vport->fc_flag, payload_len); 8043 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8044 8045 /* Check to see if we need to NVME rescan this target 8046 * remoteport. 8047 */ 8048 if (ndlp->nlp_fc4_type & NLP_FC4_NVME && 8049 ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY)) 8050 lpfc_nvme_rescan_port(vport, ndlp); 8051 return 0; 8052 } 8053 8054 /* If we are about to begin discovery, just ACC the RSCN. 8055 * Discovery processing will satisfy it. 8056 */ 8057 if (vport->port_state <= LPFC_NS_QRY) { 8058 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8059 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x", 8060 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); 8061 8062 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8063 return 0; 8064 } 8065 8066 /* If this RSCN just contains NPortIDs for other vports on this HBA, 8067 * just ACC and ignore it. 8068 */ 8069 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 8070 !(vport->cfg_peer_port_login)) { 8071 i = payload_len; 8072 datap = lp; 8073 while (i > 0) { 8074 nportid = *datap++; 8075 nportid = ((be32_to_cpu(nportid)) & Mask_DID); 8076 i -= sizeof(uint32_t); 8077 rscn_id++; 8078 if (lpfc_find_vport_by_did(phba, nportid)) 8079 hba_id++; 8080 } 8081 if (rscn_id == hba_id) { 8082 /* ALL NPortIDs in RSCN are on HBA */ 8083 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8084 "0219 Ignore RSCN " 8085 "Data: x%x x%x x%x x%x\n", 8086 vport->fc_flag, payload_len, 8087 *lp, vport->fc_rscn_id_cnt); 8088 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8089 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x", 8090 ndlp->nlp_DID, vport->port_state, 8091 ndlp->nlp_flag); 8092 8093 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, 8094 ndlp, NULL); 8095 /* Restart disctmo if its already running */ 8096 if (vport->fc_flag & FC_DISC_TMO) { 8097 tmo = ((phba->fc_ratov * 3) + 3); 8098 mod_timer(&vport->fc_disctmo, 8099 jiffies + 8100 msecs_to_jiffies(1000 * tmo)); 8101 } 8102 return 0; 8103 } 8104 } 8105 8106 spin_lock_irq(shost->host_lock); 8107 if (vport->fc_rscn_flush) { 8108 /* Another thread is walking fc_rscn_id_list on this vport */ 8109 vport->fc_flag |= FC_RSCN_DISCOVERY; 8110 spin_unlock_irq(shost->host_lock); 8111 /* Send back ACC */ 8112 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8113 return 0; 8114 } 8115 /* Indicate we are walking fc_rscn_id_list on this vport */ 8116 vport->fc_rscn_flush = 1; 8117 spin_unlock_irq(shost->host_lock); 8118 /* Get the array count after successfully have the token */ 8119 rscn_cnt = vport->fc_rscn_id_cnt; 8120 /* If we are already processing an RSCN, save the received 8121 * RSCN payload buffer, cmdiocb->cmd_dmabuf to process later. 8122 */ 8123 if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) { 8124 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8125 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x", 8126 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); 8127 8128 spin_lock_irq(shost->host_lock); 8129 vport->fc_flag |= FC_RSCN_DEFERRED; 8130 8131 /* Restart disctmo if its already running */ 8132 if (vport->fc_flag & FC_DISC_TMO) { 8133 tmo = ((phba->fc_ratov * 3) + 3); 8134 mod_timer(&vport->fc_disctmo, 8135 jiffies + msecs_to_jiffies(1000 * tmo)); 8136 } 8137 if ((rscn_cnt < FC_MAX_HOLD_RSCN) && 8138 !(vport->fc_flag & FC_RSCN_DISCOVERY)) { 8139 vport->fc_flag |= FC_RSCN_MODE; 8140 spin_unlock_irq(shost->host_lock); 8141 if (rscn_cnt) { 8142 cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; 8143 length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); 8144 } 8145 if ((rscn_cnt) && 8146 (payload_len + length <= LPFC_BPL_SIZE)) { 8147 *cmd &= ELS_CMD_MASK; 8148 *cmd |= cpu_to_be32(payload_len + length); 8149 memcpy(((uint8_t *)cmd) + length, lp, 8150 payload_len); 8151 } else { 8152 vport->fc_rscn_id_list[rscn_cnt] = pcmd; 8153 vport->fc_rscn_id_cnt++; 8154 /* If we zero, cmdiocb->cmd_dmabuf, the calling 8155 * routine will not try to free it. 8156 */ 8157 cmdiocb->cmd_dmabuf = NULL; 8158 } 8159 /* Deferred RSCN */ 8160 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8161 "0235 Deferred RSCN " 8162 "Data: x%x x%x x%x\n", 8163 vport->fc_rscn_id_cnt, vport->fc_flag, 8164 vport->port_state); 8165 } else { 8166 vport->fc_flag |= FC_RSCN_DISCOVERY; 8167 spin_unlock_irq(shost->host_lock); 8168 /* ReDiscovery RSCN */ 8169 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8170 "0234 ReDiscovery RSCN " 8171 "Data: x%x x%x x%x\n", 8172 vport->fc_rscn_id_cnt, vport->fc_flag, 8173 vport->port_state); 8174 } 8175 /* Indicate we are done walking fc_rscn_id_list on this vport */ 8176 vport->fc_rscn_flush = 0; 8177 /* Send back ACC */ 8178 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8179 /* send RECOVERY event for ALL nodes that match RSCN payload */ 8180 lpfc_rscn_recovery_check(vport); 8181 return 0; 8182 } 8183 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8184 "RCV RSCN: did:x%x/ste:x%x flg:x%x", 8185 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); 8186 8187 spin_lock_irq(shost->host_lock); 8188 vport->fc_flag |= FC_RSCN_MODE; 8189 spin_unlock_irq(shost->host_lock); 8190 vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; 8191 /* Indicate we are done walking fc_rscn_id_list on this vport */ 8192 vport->fc_rscn_flush = 0; 8193 /* 8194 * If we zero, cmdiocb->cmd_dmabuf, the calling routine will 8195 * not try to free it. 8196 */ 8197 cmdiocb->cmd_dmabuf = NULL; 8198 lpfc_set_disctmo(vport); 8199 /* Send back ACC */ 8200 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8201 /* send RECOVERY event for ALL nodes that match RSCN payload */ 8202 lpfc_rscn_recovery_check(vport); 8203 return lpfc_els_handle_rscn(vport); 8204 } 8205 8206 /** 8207 * lpfc_els_handle_rscn - Handle rscn for a vport 8208 * @vport: pointer to a host virtual N_Port data structure. 8209 * 8210 * This routine handles the Registration State Configuration Notification 8211 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall 8212 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise, 8213 * if the ndlp to NameServer exists, a Common Transport (CT) command to the 8214 * NameServer shall be issued. If CT command to the NameServer fails to be 8215 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any 8216 * RSCN activities with the @vport. 8217 * 8218 * Return code 8219 * 0 - Cleaned up rscn on the @vport 8220 * 1 - Wait for plogi to name server before proceed 8221 **/ 8222 int 8223 lpfc_els_handle_rscn(struct lpfc_vport *vport) 8224 { 8225 struct lpfc_nodelist *ndlp; 8226 struct lpfc_hba *phba = vport->phba; 8227 8228 /* Ignore RSCN if the port is being torn down. */ 8229 if (vport->load_flag & FC_UNLOADING) { 8230 lpfc_els_flush_rscn(vport); 8231 return 0; 8232 } 8233 8234 /* Start timer for RSCN processing */ 8235 lpfc_set_disctmo(vport); 8236 8237 /* RSCN processed */ 8238 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8239 "0215 RSCN processed Data: x%x x%x x%x x%x x%x x%x\n", 8240 vport->fc_flag, 0, vport->fc_rscn_id_cnt, 8241 vport->port_state, vport->num_disc_nodes, 8242 vport->gidft_inp); 8243 8244 /* To process RSCN, first compare RSCN data with NameServer */ 8245 vport->fc_ns_retry = 0; 8246 vport->num_disc_nodes = 0; 8247 8248 ndlp = lpfc_findnode_did(vport, NameServer_DID); 8249 if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { 8250 /* Good ndlp, issue CT Request to NameServer. Need to 8251 * know how many gidfts were issued. If none, then just 8252 * flush the RSCN. Otherwise, the outstanding requests 8253 * need to complete. 8254 */ 8255 if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_FT) { 8256 if (lpfc_issue_gidft(vport) > 0) 8257 return 1; 8258 } else if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_PT) { 8259 if (lpfc_issue_gidpt(vport) > 0) 8260 return 1; 8261 } else { 8262 return 1; 8263 } 8264 } else { 8265 /* Nameserver login in question. Revalidate. */ 8266 if (ndlp) { 8267 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; 8268 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 8269 } else { 8270 ndlp = lpfc_nlp_init(vport, NameServer_DID); 8271 if (!ndlp) { 8272 lpfc_els_flush_rscn(vport); 8273 return 0; 8274 } 8275 ndlp->nlp_prev_state = ndlp->nlp_state; 8276 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 8277 } 8278 ndlp->nlp_type |= NLP_FABRIC; 8279 lpfc_issue_els_plogi(vport, NameServer_DID, 0); 8280 /* Wait for NameServer login cmpl before we can 8281 * continue 8282 */ 8283 return 1; 8284 } 8285 8286 lpfc_els_flush_rscn(vport); 8287 return 0; 8288 } 8289 8290 /** 8291 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb 8292 * @vport: pointer to a host virtual N_Port data structure. 8293 * @cmdiocb: pointer to lpfc command iocb data structure. 8294 * @ndlp: pointer to a node-list data structure. 8295 * 8296 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS 8297 * unsolicited event. An unsolicited FLOGI can be received in a point-to- 8298 * point topology. As an unsolicited FLOGI should not be received in a loop 8299 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The 8300 * lpfc_check_sparm() routine is invoked to check the parameters in the 8301 * unsolicited FLOGI. If parameters validation failed, the routine 8302 * lpfc_els_rsp_reject() shall be called with reject reason code set to 8303 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the 8304 * FLOGI shall be compared with the Port WWN of the @vport to determine who 8305 * will initiate PLOGI. The higher lexicographical value party shall has 8306 * higher priority (as the winning port) and will initiate PLOGI and 8307 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result 8308 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI 8309 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI. 8310 * 8311 * Return code 8312 * 0 - Successfully processed the unsolicited flogi 8313 * 1 - Failed to process the unsolicited flogi 8314 **/ 8315 static int 8316 lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8317 struct lpfc_nodelist *ndlp) 8318 { 8319 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8320 struct lpfc_hba *phba = vport->phba; 8321 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 8322 uint32_t *lp = (uint32_t *) pcmd->virt; 8323 union lpfc_wqe128 *wqe = &cmdiocb->wqe; 8324 struct serv_parm *sp; 8325 LPFC_MBOXQ_t *mbox; 8326 uint32_t cmd, did; 8327 int rc; 8328 uint32_t fc_flag = 0; 8329 uint32_t port_state = 0; 8330 8331 /* Clear external loopback plug detected flag */ 8332 phba->link_flag &= ~LS_EXTERNAL_LOOPBACK; 8333 8334 cmd = *lp++; 8335 sp = (struct serv_parm *) lp; 8336 8337 /* FLOGI received */ 8338 8339 lpfc_set_disctmo(vport); 8340 8341 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 8342 /* We should never receive a FLOGI in loop mode, ignore it */ 8343 did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest); 8344 8345 /* An FLOGI ELS command <elsCmd> was received from DID <did> in 8346 Loop Mode */ 8347 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 8348 "0113 An FLOGI ELS command x%x was " 8349 "received from DID x%x in Loop Mode\n", 8350 cmd, did); 8351 return 1; 8352 } 8353 8354 (void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1); 8355 8356 /* 8357 * If our portname is greater than the remote portname, 8358 * then we initiate Nport login. 8359 */ 8360 8361 rc = memcmp(&vport->fc_portname, &sp->portName, 8362 sizeof(struct lpfc_name)); 8363 8364 if (!rc) { 8365 if (phba->sli_rev < LPFC_SLI_REV4) { 8366 mbox = mempool_alloc(phba->mbox_mem_pool, 8367 GFP_KERNEL); 8368 if (!mbox) 8369 return 1; 8370 lpfc_linkdown(phba); 8371 lpfc_init_link(phba, mbox, 8372 phba->cfg_topology, 8373 phba->cfg_link_speed); 8374 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 8375 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 8376 mbox->vport = vport; 8377 rc = lpfc_sli_issue_mbox(phba, mbox, 8378 MBX_NOWAIT); 8379 lpfc_set_loopback_flag(phba); 8380 if (rc == MBX_NOT_FINISHED) 8381 mempool_free(mbox, phba->mbox_mem_pool); 8382 return 1; 8383 } 8384 8385 /* External loopback plug insertion detected */ 8386 phba->link_flag |= LS_EXTERNAL_LOOPBACK; 8387 8388 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_LIBDFC, 8389 "1119 External Loopback plug detected\n"); 8390 8391 /* abort the flogi coming back to ourselves 8392 * due to external loopback on the port. 8393 */ 8394 lpfc_els_abort_flogi(phba); 8395 return 0; 8396 8397 } else if (rc > 0) { /* greater than */ 8398 spin_lock_irq(shost->host_lock); 8399 vport->fc_flag |= FC_PT2PT_PLOGI; 8400 spin_unlock_irq(shost->host_lock); 8401 8402 /* If we have the high WWPN we can assign our own 8403 * myDID; otherwise, we have to WAIT for a PLOGI 8404 * from the remote NPort to find out what it 8405 * will be. 8406 */ 8407 vport->fc_myDID = PT2PT_LocalID; 8408 } else { 8409 vport->fc_myDID = PT2PT_RemoteID; 8410 } 8411 8412 /* 8413 * The vport state should go to LPFC_FLOGI only 8414 * AFTER we issue a FLOGI, not receive one. 8415 */ 8416 spin_lock_irq(shost->host_lock); 8417 fc_flag = vport->fc_flag; 8418 port_state = vport->port_state; 8419 vport->fc_flag |= FC_PT2PT; 8420 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 8421 8422 /* Acking an unsol FLOGI. Count 1 for link bounce 8423 * work-around. 8424 */ 8425 vport->rcv_flogi_cnt++; 8426 spin_unlock_irq(shost->host_lock); 8427 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 8428 "3311 Rcv Flogi PS x%x new PS x%x " 8429 "fc_flag x%x new fc_flag x%x\n", 8430 port_state, vport->port_state, 8431 fc_flag, vport->fc_flag); 8432 8433 /* 8434 * We temporarily set fc_myDID to make it look like we are 8435 * a Fabric. This is done just so we end up with the right 8436 * did / sid on the FLOGI ACC rsp. 8437 */ 8438 did = vport->fc_myDID; 8439 vport->fc_myDID = Fabric_DID; 8440 8441 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 8442 8443 /* Defer ACC response until AFTER we issue a FLOGI */ 8444 if (!(phba->hba_flag & HBA_FLOGI_ISSUED)) { 8445 phba->defer_flogi_acc_rx_id = bf_get(wqe_ctxt_tag, 8446 &wqe->xmit_els_rsp.wqe_com); 8447 phba->defer_flogi_acc_ox_id = bf_get(wqe_rcvoxid, 8448 &wqe->xmit_els_rsp.wqe_com); 8449 8450 vport->fc_myDID = did; 8451 8452 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 8453 "3344 Deferring FLOGI ACC: rx_id: x%x," 8454 " ox_id: x%x, hba_flag x%x\n", 8455 phba->defer_flogi_acc_rx_id, 8456 phba->defer_flogi_acc_ox_id, phba->hba_flag); 8457 8458 phba->defer_flogi_acc_flag = true; 8459 8460 return 0; 8461 } 8462 8463 /* Send back ACC */ 8464 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL); 8465 8466 /* Now lets put fc_myDID back to what its supposed to be */ 8467 vport->fc_myDID = did; 8468 8469 return 0; 8470 } 8471 8472 /** 8473 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb 8474 * @vport: pointer to a host virtual N_Port data structure. 8475 * @cmdiocb: pointer to lpfc command iocb data structure. 8476 * @ndlp: pointer to a node-list data structure. 8477 * 8478 * This routine processes Request Node Identification Data (RNID) IOCB 8479 * received as an ELS unsolicited event. Only when the RNID specified format 8480 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data) 8481 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to 8482 * Accept (ACC) the RNID ELS command. All the other RNID formats are 8483 * rejected by invoking the lpfc_els_rsp_reject() routine. 8484 * 8485 * Return code 8486 * 0 - Successfully processed rnid iocb (currently always return 0) 8487 **/ 8488 static int 8489 lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8490 struct lpfc_nodelist *ndlp) 8491 { 8492 struct lpfc_dmabuf *pcmd; 8493 uint32_t *lp; 8494 RNID *rn; 8495 struct ls_rjt stat; 8496 8497 pcmd = cmdiocb->cmd_dmabuf; 8498 lp = (uint32_t *) pcmd->virt; 8499 8500 lp++; 8501 rn = (RNID *) lp; 8502 8503 /* RNID received */ 8504 8505 switch (rn->Format) { 8506 case 0: 8507 case RNID_TOPOLOGY_DISC: 8508 /* Send back ACC */ 8509 lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); 8510 break; 8511 default: 8512 /* Reject this request because format not supported */ 8513 stat.un.b.lsRjtRsvd0 = 0; 8514 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8515 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8516 stat.un.b.vendorUnique = 0; 8517 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 8518 NULL); 8519 } 8520 return 0; 8521 } 8522 8523 /** 8524 * lpfc_els_rcv_echo - Process an unsolicited echo iocb 8525 * @vport: pointer to a host virtual N_Port data structure. 8526 * @cmdiocb: pointer to lpfc command iocb data structure. 8527 * @ndlp: pointer to a node-list data structure. 8528 * 8529 * Return code 8530 * 0 - Successfully processed echo iocb (currently always return 0) 8531 **/ 8532 static int 8533 lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8534 struct lpfc_nodelist *ndlp) 8535 { 8536 uint8_t *pcmd; 8537 8538 pcmd = (uint8_t *)cmdiocb->cmd_dmabuf->virt; 8539 8540 /* skip over first word of echo command to find echo data */ 8541 pcmd += sizeof(uint32_t); 8542 8543 lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp); 8544 return 0; 8545 } 8546 8547 /** 8548 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb 8549 * @vport: pointer to a host virtual N_Port data structure. 8550 * @cmdiocb: pointer to lpfc command iocb data structure. 8551 * @ndlp: pointer to a node-list data structure. 8552 * 8553 * This routine processes a Link Incident Report Registration(LIRR) IOCB 8554 * received as an ELS unsolicited event. Currently, this function just invokes 8555 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally. 8556 * 8557 * Return code 8558 * 0 - Successfully processed lirr iocb (currently always return 0) 8559 **/ 8560 static int 8561 lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8562 struct lpfc_nodelist *ndlp) 8563 { 8564 struct ls_rjt stat; 8565 8566 /* For now, unconditionally reject this command */ 8567 stat.un.b.lsRjtRsvd0 = 0; 8568 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8569 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8570 stat.un.b.vendorUnique = 0; 8571 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 8572 return 0; 8573 } 8574 8575 /** 8576 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb 8577 * @vport: pointer to a host virtual N_Port data structure. 8578 * @cmdiocb: pointer to lpfc command iocb data structure. 8579 * @ndlp: pointer to a node-list data structure. 8580 * 8581 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB 8582 * received as an ELS unsolicited event. A request to RRQ shall only 8583 * be accepted if the Originator Nx_Port N_Port_ID or the Responder 8584 * Nx_Port N_Port_ID of the target Exchange is the same as the 8585 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is 8586 * not accepted, an LS_RJT with reason code "Unable to perform 8587 * command request" and reason code explanation "Invalid Originator 8588 * S_ID" shall be returned. For now, we just unconditionally accept 8589 * RRQ from the target. 8590 **/ 8591 static void 8592 lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8593 struct lpfc_nodelist *ndlp) 8594 { 8595 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8596 if (vport->phba->sli_rev == LPFC_SLI_REV4) 8597 lpfc_els_clear_rrq(vport, cmdiocb, ndlp); 8598 } 8599 8600 /** 8601 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd 8602 * @phba: pointer to lpfc hba data structure. 8603 * @pmb: pointer to the driver internal queue element for mailbox command. 8604 * 8605 * This routine is the completion callback function for the MBX_READ_LNK_STAT 8606 * mailbox command. This callback function is to actually send the Accept 8607 * (ACC) response to a Read Link Status (RLS) unsolicited IOCB event. It 8608 * collects the link statistics from the completion of the MBX_READ_LNK_STAT 8609 * mailbox command, constructs the RLS response with the link statistics 8610 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC 8611 * response to the RLS. 8612 * 8613 * Note that the ndlp reference count will be incremented by 1 for holding the 8614 * ndlp and the reference to ndlp will be stored into the ndlp field of 8615 * the IOCB for the completion callback function to the RLS Accept Response 8616 * ELS IOCB command. 8617 * 8618 **/ 8619 static void 8620 lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 8621 { 8622 int rc = 0; 8623 MAILBOX_t *mb; 8624 IOCB_t *icmd; 8625 union lpfc_wqe128 *wqe; 8626 struct RLS_RSP *rls_rsp; 8627 uint8_t *pcmd; 8628 struct lpfc_iocbq *elsiocb; 8629 struct lpfc_nodelist *ndlp; 8630 uint16_t oxid; 8631 uint16_t rxid; 8632 uint32_t cmdsize; 8633 u32 ulp_context; 8634 8635 mb = &pmb->u.mb; 8636 8637 ndlp = pmb->ctx_ndlp; 8638 rxid = (uint16_t)((unsigned long)(pmb->ctx_buf) & 0xffff); 8639 oxid = (uint16_t)(((unsigned long)(pmb->ctx_buf) >> 16) & 0xffff); 8640 pmb->ctx_buf = NULL; 8641 pmb->ctx_ndlp = NULL; 8642 8643 if (mb->mbxStatus) { 8644 mempool_free(pmb, phba->mbox_mem_pool); 8645 return; 8646 } 8647 8648 cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t); 8649 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 8650 lpfc_max_els_tries, ndlp, 8651 ndlp->nlp_DID, ELS_CMD_ACC); 8652 8653 /* Decrement the ndlp reference count from previous mbox command */ 8654 lpfc_nlp_put(ndlp); 8655 8656 if (!elsiocb) { 8657 mempool_free(pmb, phba->mbox_mem_pool); 8658 return; 8659 } 8660 8661 ulp_context = get_job_ulpcontext(phba, elsiocb); 8662 if (phba->sli_rev == LPFC_SLI_REV4) { 8663 wqe = &elsiocb->wqe; 8664 /* Xri / rx_id */ 8665 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, rxid); 8666 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, oxid); 8667 } else { 8668 icmd = &elsiocb->iocb; 8669 icmd->ulpContext = rxid; 8670 icmd->unsli3.rcvsli3.ox_id = oxid; 8671 } 8672 8673 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 8674 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 8675 pcmd += sizeof(uint32_t); /* Skip past command */ 8676 rls_rsp = (struct RLS_RSP *)pcmd; 8677 8678 rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); 8679 rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); 8680 rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); 8681 rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); 8682 rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); 8683 rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); 8684 mempool_free(pmb, phba->mbox_mem_pool); 8685 /* Xmit ELS RLS ACC response tag <ulpIoTag> */ 8686 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, 8687 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, " 8688 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", 8689 elsiocb->iotag, ulp_context, 8690 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 8691 ndlp->nlp_rpi); 8692 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 8693 phba->fc_stat.elsXmitACC++; 8694 elsiocb->ndlp = lpfc_nlp_get(ndlp); 8695 if (!elsiocb->ndlp) { 8696 lpfc_els_free_iocb(phba, elsiocb); 8697 return; 8698 } 8699 8700 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 8701 if (rc == IOCB_ERROR) { 8702 lpfc_els_free_iocb(phba, elsiocb); 8703 lpfc_nlp_put(ndlp); 8704 } 8705 return; 8706 } 8707 8708 /** 8709 * lpfc_els_rcv_rls - Process an unsolicited rls iocb 8710 * @vport: pointer to a host virtual N_Port data structure. 8711 * @cmdiocb: pointer to lpfc command iocb data structure. 8712 * @ndlp: pointer to a node-list data structure. 8713 * 8714 * This routine processes Read Link Status (RLS) IOCB received as an 8715 * ELS unsolicited event. It first checks the remote port state. If the 8716 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE 8717 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject 8718 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command 8719 * for reading the HBA link statistics. It is for the callback function, 8720 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command 8721 * to actually sending out RPL Accept (ACC) response. 8722 * 8723 * Return codes 8724 * 0 - Successfully processed rls iocb (currently always return 0) 8725 **/ 8726 static int 8727 lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8728 struct lpfc_nodelist *ndlp) 8729 { 8730 struct lpfc_hba *phba = vport->phba; 8731 LPFC_MBOXQ_t *mbox; 8732 struct ls_rjt stat; 8733 u32 ctx = get_job_ulpcontext(phba, cmdiocb); 8734 u32 ox_id = get_job_rcvoxid(phba, cmdiocb); 8735 8736 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 8737 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) 8738 /* reject the unsolicited RLS request and done with it */ 8739 goto reject_out; 8740 8741 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); 8742 if (mbox) { 8743 lpfc_read_lnk_stat(phba, mbox); 8744 mbox->ctx_buf = (void *)((unsigned long) 8745 (ox_id << 16 | ctx)); 8746 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 8747 if (!mbox->ctx_ndlp) 8748 goto node_err; 8749 mbox->vport = vport; 8750 mbox->mbox_cmpl = lpfc_els_rsp_rls_acc; 8751 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 8752 != MBX_NOT_FINISHED) 8753 /* Mbox completion will send ELS Response */ 8754 return 0; 8755 /* Decrement reference count used for the failed mbox 8756 * command. 8757 */ 8758 lpfc_nlp_put(ndlp); 8759 node_err: 8760 mempool_free(mbox, phba->mbox_mem_pool); 8761 } 8762 reject_out: 8763 /* issue rejection response */ 8764 stat.un.b.lsRjtRsvd0 = 0; 8765 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8766 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8767 stat.un.b.vendorUnique = 0; 8768 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 8769 return 0; 8770 } 8771 8772 /** 8773 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb 8774 * @vport: pointer to a host virtual N_Port data structure. 8775 * @cmdiocb: pointer to lpfc command iocb data structure. 8776 * @ndlp: pointer to a node-list data structure. 8777 * 8778 * This routine processes Read Timout Value (RTV) IOCB received as an 8779 * ELS unsolicited event. It first checks the remote port state. If the 8780 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE 8781 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject 8782 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout 8783 * Value (RTV) unsolicited IOCB event. 8784 * 8785 * Note that the ndlp reference count will be incremented by 1 for holding the 8786 * ndlp and the reference to ndlp will be stored into the ndlp field of 8787 * the IOCB for the completion callback function to the RTV Accept Response 8788 * ELS IOCB command. 8789 * 8790 * Return codes 8791 * 0 - Successfully processed rtv iocb (currently always return 0) 8792 **/ 8793 static int 8794 lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8795 struct lpfc_nodelist *ndlp) 8796 { 8797 int rc = 0; 8798 IOCB_t *icmd; 8799 union lpfc_wqe128 *wqe; 8800 struct lpfc_hba *phba = vport->phba; 8801 struct ls_rjt stat; 8802 struct RTV_RSP *rtv_rsp; 8803 uint8_t *pcmd; 8804 struct lpfc_iocbq *elsiocb; 8805 uint32_t cmdsize; 8806 u32 ulp_context; 8807 8808 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 8809 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) 8810 /* reject the unsolicited RTV request and done with it */ 8811 goto reject_out; 8812 8813 cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t); 8814 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 8815 lpfc_max_els_tries, ndlp, 8816 ndlp->nlp_DID, ELS_CMD_ACC); 8817 8818 if (!elsiocb) 8819 return 1; 8820 8821 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 8822 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 8823 pcmd += sizeof(uint32_t); /* Skip past command */ 8824 8825 ulp_context = get_job_ulpcontext(phba, elsiocb); 8826 /* use the command's xri in the response */ 8827 if (phba->sli_rev == LPFC_SLI_REV4) { 8828 wqe = &elsiocb->wqe; 8829 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 8830 get_job_ulpcontext(phba, cmdiocb)); 8831 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 8832 get_job_rcvoxid(phba, cmdiocb)); 8833 } else { 8834 icmd = &elsiocb->iocb; 8835 icmd->ulpContext = get_job_ulpcontext(phba, cmdiocb); 8836 icmd->unsli3.rcvsli3.ox_id = get_job_rcvoxid(phba, cmdiocb); 8837 } 8838 8839 rtv_rsp = (struct RTV_RSP *)pcmd; 8840 8841 /* populate RTV payload */ 8842 rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */ 8843 rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov); 8844 bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0); 8845 bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */ 8846 rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov); 8847 8848 /* Xmit ELS RLS ACC response tag <ulpIoTag> */ 8849 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, 8850 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, " 8851 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, " 8852 "Data: x%x x%x x%x\n", 8853 elsiocb->iotag, ulp_context, 8854 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 8855 ndlp->nlp_rpi, 8856 rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov); 8857 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 8858 phba->fc_stat.elsXmitACC++; 8859 elsiocb->ndlp = lpfc_nlp_get(ndlp); 8860 if (!elsiocb->ndlp) { 8861 lpfc_els_free_iocb(phba, elsiocb); 8862 return 0; 8863 } 8864 8865 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 8866 if (rc == IOCB_ERROR) { 8867 lpfc_els_free_iocb(phba, elsiocb); 8868 lpfc_nlp_put(ndlp); 8869 } 8870 return 0; 8871 8872 reject_out: 8873 /* issue rejection response */ 8874 stat.un.b.lsRjtRsvd0 = 0; 8875 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8876 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8877 stat.un.b.vendorUnique = 0; 8878 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 8879 return 0; 8880 } 8881 8882 /* lpfc_issue_els_rrq - Process an unsolicited rrq iocb 8883 * @vport: pointer to a host virtual N_Port data structure. 8884 * @ndlp: pointer to a node-list data structure. 8885 * @did: DID of the target. 8886 * @rrq: Pointer to the rrq struct. 8887 * 8888 * Build a ELS RRQ command and send it to the target. If the issue_iocb is 8889 * successful, the completion handler will clear the RRQ. 8890 * 8891 * Return codes 8892 * 0 - Successfully sent rrq els iocb. 8893 * 1 - Failed to send rrq els iocb. 8894 **/ 8895 static int 8896 lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 8897 uint32_t did, struct lpfc_node_rrq *rrq) 8898 { 8899 struct lpfc_hba *phba = vport->phba; 8900 struct RRQ *els_rrq; 8901 struct lpfc_iocbq *elsiocb; 8902 uint8_t *pcmd; 8903 uint16_t cmdsize; 8904 int ret; 8905 8906 if (!ndlp) 8907 return 1; 8908 8909 /* If ndlp is not NULL, we will bump the reference count on it */ 8910 cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ)); 8911 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did, 8912 ELS_CMD_RRQ); 8913 if (!elsiocb) 8914 return 1; 8915 8916 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 8917 8918 /* For RRQ request, remainder of payload is Exchange IDs */ 8919 *((uint32_t *) (pcmd)) = ELS_CMD_RRQ; 8920 pcmd += sizeof(uint32_t); 8921 els_rrq = (struct RRQ *) pcmd; 8922 8923 bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]); 8924 bf_set(rrq_rxid, els_rrq, rrq->rxid); 8925 bf_set(rrq_did, els_rrq, vport->fc_myDID); 8926 els_rrq->rrq = cpu_to_be32(els_rrq->rrq); 8927 els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg); 8928 8929 8930 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 8931 "Issue RRQ: did:x%x", 8932 did, rrq->xritag, rrq->rxid); 8933 elsiocb->context_un.rrq = rrq; 8934 elsiocb->cmd_cmpl = lpfc_cmpl_els_rrq; 8935 8936 elsiocb->ndlp = lpfc_nlp_get(ndlp); 8937 if (!elsiocb->ndlp) 8938 goto io_err; 8939 8940 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 8941 if (ret == IOCB_ERROR) { 8942 lpfc_nlp_put(ndlp); 8943 goto io_err; 8944 } 8945 return 0; 8946 8947 io_err: 8948 lpfc_els_free_iocb(phba, elsiocb); 8949 return 1; 8950 } 8951 8952 /** 8953 * lpfc_send_rrq - Sends ELS RRQ if needed. 8954 * @phba: pointer to lpfc hba data structure. 8955 * @rrq: pointer to the active rrq. 8956 * 8957 * This routine will call the lpfc_issue_els_rrq if the rrq is 8958 * still active for the xri. If this function returns a failure then 8959 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq. 8960 * 8961 * Returns 0 Success. 8962 * 1 Failure. 8963 **/ 8964 int 8965 lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq) 8966 { 8967 struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport, 8968 rrq->nlp_DID); 8969 if (!ndlp) 8970 return 1; 8971 8972 if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag)) 8973 return lpfc_issue_els_rrq(rrq->vport, ndlp, 8974 rrq->nlp_DID, rrq); 8975 else 8976 return 1; 8977 } 8978 8979 /** 8980 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command 8981 * @vport: pointer to a host virtual N_Port data structure. 8982 * @cmdsize: size of the ELS command. 8983 * @oldiocb: pointer to the original lpfc command iocb data structure. 8984 * @ndlp: pointer to a node-list data structure. 8985 * 8986 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command. 8987 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL. 8988 * 8989 * Note that the ndlp reference count will be incremented by 1 for holding the 8990 * ndlp and the reference to ndlp will be stored into the ndlp field of 8991 * the IOCB for the completion callback function to the RPL Accept Response 8992 * ELS command. 8993 * 8994 * Return code 8995 * 0 - Successfully issued ACC RPL ELS command 8996 * 1 - Failed to issue ACC RPL ELS command 8997 **/ 8998 static int 8999 lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, 9000 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) 9001 { 9002 int rc = 0; 9003 struct lpfc_hba *phba = vport->phba; 9004 IOCB_t *icmd; 9005 union lpfc_wqe128 *wqe; 9006 RPL_RSP rpl_rsp; 9007 struct lpfc_iocbq *elsiocb; 9008 uint8_t *pcmd; 9009 u32 ulp_context; 9010 9011 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 9012 ndlp->nlp_DID, ELS_CMD_ACC); 9013 9014 if (!elsiocb) 9015 return 1; 9016 9017 ulp_context = get_job_ulpcontext(phba, elsiocb); 9018 if (phba->sli_rev == LPFC_SLI_REV4) { 9019 wqe = &elsiocb->wqe; 9020 /* Xri / rx_id */ 9021 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 9022 get_job_ulpcontext(phba, oldiocb)); 9023 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 9024 get_job_rcvoxid(phba, oldiocb)); 9025 } else { 9026 icmd = &elsiocb->iocb; 9027 icmd->ulpContext = get_job_ulpcontext(phba, oldiocb); 9028 icmd->unsli3.rcvsli3.ox_id = get_job_rcvoxid(phba, oldiocb); 9029 } 9030 9031 pcmd = elsiocb->cmd_dmabuf->virt; 9032 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 9033 pcmd += sizeof(uint16_t); 9034 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); 9035 pcmd += sizeof(uint16_t); 9036 9037 /* Setup the RPL ACC payload */ 9038 rpl_rsp.listLen = be32_to_cpu(1); 9039 rpl_rsp.index = 0; 9040 rpl_rsp.port_num_blk.portNum = 0; 9041 rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); 9042 memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, 9043 sizeof(struct lpfc_name)); 9044 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); 9045 /* Xmit ELS RPL ACC response tag <ulpIoTag> */ 9046 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9047 "0120 Xmit ELS RPL ACC response tag x%x " 9048 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " 9049 "rpi x%x\n", 9050 elsiocb->iotag, ulp_context, 9051 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 9052 ndlp->nlp_rpi); 9053 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 9054 phba->fc_stat.elsXmitACC++; 9055 elsiocb->ndlp = lpfc_nlp_get(ndlp); 9056 if (!elsiocb->ndlp) { 9057 lpfc_els_free_iocb(phba, elsiocb); 9058 return 1; 9059 } 9060 9061 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 9062 if (rc == IOCB_ERROR) { 9063 lpfc_els_free_iocb(phba, elsiocb); 9064 lpfc_nlp_put(ndlp); 9065 return 1; 9066 } 9067 9068 return 0; 9069 } 9070 9071 /** 9072 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb 9073 * @vport: pointer to a host virtual N_Port data structure. 9074 * @cmdiocb: pointer to lpfc command iocb data structure. 9075 * @ndlp: pointer to a node-list data structure. 9076 * 9077 * This routine processes Read Port List (RPL) IOCB received as an ELS 9078 * unsolicited event. It first checks the remote port state. If the remote 9079 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it 9080 * invokes the lpfc_els_rsp_reject() routine to send reject response. 9081 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine 9082 * to accept the RPL. 9083 * 9084 * Return code 9085 * 0 - Successfully processed rpl iocb (currently always return 0) 9086 **/ 9087 static int 9088 lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9089 struct lpfc_nodelist *ndlp) 9090 { 9091 struct lpfc_dmabuf *pcmd; 9092 uint32_t *lp; 9093 uint32_t maxsize; 9094 uint16_t cmdsize; 9095 RPL *rpl; 9096 struct ls_rjt stat; 9097 9098 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 9099 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { 9100 /* issue rejection response */ 9101 stat.un.b.lsRjtRsvd0 = 0; 9102 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 9103 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 9104 stat.un.b.vendorUnique = 0; 9105 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 9106 NULL); 9107 /* rejected the unsolicited RPL request and done with it */ 9108 return 0; 9109 } 9110 9111 pcmd = cmdiocb->cmd_dmabuf; 9112 lp = (uint32_t *) pcmd->virt; 9113 rpl = (RPL *) (lp + 1); 9114 maxsize = be32_to_cpu(rpl->maxsize); 9115 9116 /* We support only one port */ 9117 if ((rpl->index == 0) && 9118 ((maxsize == 0) || 9119 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { 9120 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); 9121 } else { 9122 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); 9123 } 9124 lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); 9125 9126 return 0; 9127 } 9128 9129 /** 9130 * lpfc_els_rcv_farp - Process an unsolicited farp request els command 9131 * @vport: pointer to a virtual N_Port data structure. 9132 * @cmdiocb: pointer to lpfc command iocb data structure. 9133 * @ndlp: pointer to a node-list data structure. 9134 * 9135 * This routine processes Fibre Channel Address Resolution Protocol 9136 * (FARP) Request IOCB received as an ELS unsolicited event. Currently, 9137 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such, 9138 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the 9139 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the 9140 * remote PortName is compared against the FC PortName stored in the @vport 9141 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is 9142 * compared against the FC NodeName stored in the @vport data structure. 9143 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the 9144 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is 9145 * invoked to send out FARP Response to the remote node. Before sending the 9146 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP 9147 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi() 9148 * routine is invoked to log into the remote port first. 9149 * 9150 * Return code 9151 * 0 - Either the FARP Match Mode not supported or successfully processed 9152 **/ 9153 static int 9154 lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9155 struct lpfc_nodelist *ndlp) 9156 { 9157 struct lpfc_dmabuf *pcmd; 9158 uint32_t *lp; 9159 FARP *fp; 9160 uint32_t cnt, did; 9161 9162 did = get_job_els_rsp64_did(vport->phba, cmdiocb); 9163 pcmd = cmdiocb->cmd_dmabuf; 9164 lp = (uint32_t *) pcmd->virt; 9165 9166 lp++; 9167 fp = (FARP *) lp; 9168 /* FARP-REQ received from DID <did> */ 9169 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9170 "0601 FARP-REQ received from DID x%x\n", did); 9171 /* We will only support match on WWPN or WWNN */ 9172 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { 9173 return 0; 9174 } 9175 9176 cnt = 0; 9177 /* If this FARP command is searching for my portname */ 9178 if (fp->Mflags & FARP_MATCH_PORT) { 9179 if (memcmp(&fp->RportName, &vport->fc_portname, 9180 sizeof(struct lpfc_name)) == 0) 9181 cnt = 1; 9182 } 9183 9184 /* If this FARP command is searching for my nodename */ 9185 if (fp->Mflags & FARP_MATCH_NODE) { 9186 if (memcmp(&fp->RnodeName, &vport->fc_nodename, 9187 sizeof(struct lpfc_name)) == 0) 9188 cnt = 1; 9189 } 9190 9191 if (cnt) { 9192 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || 9193 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { 9194 /* Log back into the node before sending the FARP. */ 9195 if (fp->Rflags & FARP_REQUEST_PLOGI) { 9196 ndlp->nlp_prev_state = ndlp->nlp_state; 9197 lpfc_nlp_set_state(vport, ndlp, 9198 NLP_STE_PLOGI_ISSUE); 9199 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 9200 } 9201 9202 /* Send a FARP response to that node */ 9203 if (fp->Rflags & FARP_REQUEST_FARPR) 9204 lpfc_issue_els_farpr(vport, did, 0); 9205 } 9206 } 9207 return 0; 9208 } 9209 9210 /** 9211 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb 9212 * @vport: pointer to a host virtual N_Port data structure. 9213 * @cmdiocb: pointer to lpfc command iocb data structure. 9214 * @ndlp: pointer to a node-list data structure. 9215 * 9216 * This routine processes Fibre Channel Address Resolution Protocol 9217 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply 9218 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept 9219 * the FARP response request. 9220 * 9221 * Return code 9222 * 0 - Successfully processed FARPR IOCB (currently always return 0) 9223 **/ 9224 static int 9225 lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9226 struct lpfc_nodelist *ndlp) 9227 { 9228 uint32_t did; 9229 9230 did = get_job_els_rsp64_did(vport->phba, cmdiocb); 9231 9232 /* FARP-RSP received from DID <did> */ 9233 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9234 "0600 FARP-RSP received from DID x%x\n", did); 9235 /* ACCEPT the Farp resp request */ 9236 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 9237 9238 return 0; 9239 } 9240 9241 /** 9242 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command 9243 * @vport: pointer to a host virtual N_Port data structure. 9244 * @cmdiocb: pointer to lpfc command iocb data structure. 9245 * @fan_ndlp: pointer to a node-list data structure. 9246 * 9247 * This routine processes a Fabric Address Notification (FAN) IOCB 9248 * command received as an ELS unsolicited event. The FAN ELS command will 9249 * only be processed on a physical port (i.e., the @vport represents the 9250 * physical port). The fabric NodeName and PortName from the FAN IOCB are 9251 * compared against those in the phba data structure. If any of those is 9252 * different, the lpfc_initial_flogi() routine is invoked to initialize 9253 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise, 9254 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine 9255 * is invoked to register login to the fabric. 9256 * 9257 * Return code 9258 * 0 - Successfully processed fan iocb (currently always return 0). 9259 **/ 9260 static int 9261 lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9262 struct lpfc_nodelist *fan_ndlp) 9263 { 9264 struct lpfc_hba *phba = vport->phba; 9265 uint32_t *lp; 9266 FAN *fp; 9267 9268 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); 9269 lp = (uint32_t *)cmdiocb->cmd_dmabuf->virt; 9270 fp = (FAN *) ++lp; 9271 /* FAN received; Fan does not have a reply sequence */ 9272 if ((vport == phba->pport) && 9273 (vport->port_state == LPFC_LOCAL_CFG_LINK)) { 9274 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, 9275 sizeof(struct lpfc_name))) || 9276 (memcmp(&phba->fc_fabparam.portName, &fp->FportName, 9277 sizeof(struct lpfc_name)))) { 9278 /* This port has switched fabrics. FLOGI is required */ 9279 lpfc_issue_init_vfi(vport); 9280 } else { 9281 /* FAN verified - skip FLOGI */ 9282 vport->fc_myDID = vport->fc_prevDID; 9283 if (phba->sli_rev < LPFC_SLI_REV4) 9284 lpfc_issue_fabric_reglogin(vport); 9285 else { 9286 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9287 "3138 Need register VFI: (x%x/%x)\n", 9288 vport->fc_prevDID, vport->fc_myDID); 9289 lpfc_issue_reg_vfi(vport); 9290 } 9291 } 9292 } 9293 return 0; 9294 } 9295 9296 /** 9297 * lpfc_els_rcv_edc - Process an unsolicited EDC iocb 9298 * @vport: pointer to a host virtual N_Port data structure. 9299 * @cmdiocb: pointer to lpfc command iocb data structure. 9300 * @ndlp: pointer to a node-list data structure. 9301 * 9302 * Return code 9303 * 0 - Successfully processed echo iocb (currently always return 0) 9304 **/ 9305 static int 9306 lpfc_els_rcv_edc(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9307 struct lpfc_nodelist *ndlp) 9308 { 9309 struct lpfc_hba *phba = vport->phba; 9310 struct fc_els_edc *edc_req; 9311 struct fc_tlv_desc *tlv; 9312 uint8_t *payload; 9313 uint32_t *ptr, dtag; 9314 const char *dtag_nm; 9315 int desc_cnt = 0, bytes_remain; 9316 struct fc_diag_lnkflt_desc *plnkflt; 9317 9318 payload = cmdiocb->cmd_dmabuf->virt; 9319 9320 edc_req = (struct fc_els_edc *)payload; 9321 bytes_remain = be32_to_cpu(edc_req->desc_len); 9322 9323 ptr = (uint32_t *)payload; 9324 lpfc_printf_vlog(vport, KERN_INFO, 9325 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9326 "3319 Rcv EDC payload len %d: x%x x%x x%x\n", 9327 bytes_remain, be32_to_cpu(*ptr), 9328 be32_to_cpu(*(ptr + 1)), be32_to_cpu(*(ptr + 2))); 9329 9330 /* No signal support unless there is a congestion descriptor */ 9331 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 9332 phba->cgn_sig_freq = 0; 9333 phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN; 9334 9335 if (bytes_remain <= 0) 9336 goto out; 9337 9338 tlv = edc_req->desc; 9339 9340 /* 9341 * cycle through EDC diagnostic descriptors to find the 9342 * congestion signaling capability descriptor 9343 */ 9344 while (bytes_remain) { 9345 if (bytes_remain < FC_TLV_DESC_HDR_SZ) { 9346 lpfc_printf_log(phba, KERN_WARNING, 9347 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9348 "6464 Truncated TLV hdr on " 9349 "Diagnostic descriptor[%d]\n", 9350 desc_cnt); 9351 goto out; 9352 } 9353 9354 dtag = be32_to_cpu(tlv->desc_tag); 9355 switch (dtag) { 9356 case ELS_DTAG_LNK_FAULT_CAP: 9357 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 9358 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 9359 sizeof(struct fc_diag_lnkflt_desc)) { 9360 lpfc_printf_log(phba, KERN_WARNING, 9361 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9362 "6465 Truncated Link Fault Diagnostic " 9363 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 9364 desc_cnt, bytes_remain, 9365 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 9366 sizeof(struct fc_diag_lnkflt_desc)); 9367 goto out; 9368 } 9369 plnkflt = (struct fc_diag_lnkflt_desc *)tlv; 9370 lpfc_printf_log(phba, KERN_INFO, 9371 LOG_ELS | LOG_LDS_EVENT, 9372 "4626 Link Fault Desc Data: x%08x len x%x " 9373 "da x%x dd x%x interval x%x\n", 9374 be32_to_cpu(plnkflt->desc_tag), 9375 be32_to_cpu(plnkflt->desc_len), 9376 be32_to_cpu( 9377 plnkflt->degrade_activate_threshold), 9378 be32_to_cpu( 9379 plnkflt->degrade_deactivate_threshold), 9380 be32_to_cpu(plnkflt->fec_degrade_interval)); 9381 break; 9382 case ELS_DTAG_CG_SIGNAL_CAP: 9383 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 9384 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 9385 sizeof(struct fc_diag_cg_sig_desc)) { 9386 lpfc_printf_log( 9387 phba, KERN_WARNING, LOG_CGN_MGMT, 9388 "6466 Truncated cgn signal Diagnostic " 9389 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 9390 desc_cnt, bytes_remain, 9391 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 9392 sizeof(struct fc_diag_cg_sig_desc)); 9393 goto out; 9394 } 9395 9396 phba->cgn_reg_fpin = phba->cgn_init_reg_fpin; 9397 phba->cgn_reg_signal = phba->cgn_init_reg_signal; 9398 9399 /* We start negotiation with lpfc_fabric_cgn_frequency. 9400 * When we process the EDC, we will settle on the 9401 * higher frequency. 9402 */ 9403 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency; 9404 9405 lpfc_least_capable_settings( 9406 phba, (struct fc_diag_cg_sig_desc *)tlv); 9407 break; 9408 default: 9409 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 9410 lpfc_printf_log(phba, KERN_WARNING, 9411 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9412 "6467 unknown Diagnostic " 9413 "Descriptor[%d]: tag x%x (%s)\n", 9414 desc_cnt, dtag, dtag_nm); 9415 } 9416 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv); 9417 tlv = fc_tlv_next_desc(tlv); 9418 desc_cnt++; 9419 } 9420 out: 9421 /* Need to send back an ACC */ 9422 lpfc_issue_els_edc_rsp(vport, cmdiocb, ndlp); 9423 9424 lpfc_config_cgn_signal(phba); 9425 return 0; 9426 } 9427 9428 /** 9429 * lpfc_els_timeout - Handler funciton to the els timer 9430 * @t: timer context used to obtain the vport. 9431 * 9432 * This routine is invoked by the ELS timer after timeout. It posts the ELS 9433 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port 9434 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake 9435 * up the worker thread. It is for the worker thread to invoke the routine 9436 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO. 9437 **/ 9438 void 9439 lpfc_els_timeout(struct timer_list *t) 9440 { 9441 struct lpfc_vport *vport = from_timer(vport, t, els_tmofunc); 9442 struct lpfc_hba *phba = vport->phba; 9443 uint32_t tmo_posted; 9444 unsigned long iflag; 9445 9446 spin_lock_irqsave(&vport->work_port_lock, iflag); 9447 tmo_posted = vport->work_port_events & WORKER_ELS_TMO; 9448 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING))) 9449 vport->work_port_events |= WORKER_ELS_TMO; 9450 spin_unlock_irqrestore(&vport->work_port_lock, iflag); 9451 9452 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING))) 9453 lpfc_worker_wake_up(phba); 9454 return; 9455 } 9456 9457 9458 /** 9459 * lpfc_els_timeout_handler - Process an els timeout event 9460 * @vport: pointer to a virtual N_Port data structure. 9461 * 9462 * This routine is the actual handler function that processes an ELS timeout 9463 * event. It walks the ELS ring to get and abort all the IOCBs (except the 9464 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by 9465 * invoking the lpfc_sli_issue_abort_iotag() routine. 9466 **/ 9467 void 9468 lpfc_els_timeout_handler(struct lpfc_vport *vport) 9469 { 9470 struct lpfc_hba *phba = vport->phba; 9471 struct lpfc_sli_ring *pring; 9472 struct lpfc_iocbq *tmp_iocb, *piocb; 9473 IOCB_t *cmd = NULL; 9474 struct lpfc_dmabuf *pcmd; 9475 uint32_t els_command = 0; 9476 uint32_t timeout; 9477 uint32_t remote_ID = 0xffffffff; 9478 LIST_HEAD(abort_list); 9479 u32 ulp_command = 0, ulp_context = 0, did = 0, iotag = 0; 9480 9481 9482 timeout = (uint32_t)(phba->fc_ratov << 1); 9483 9484 pring = lpfc_phba_elsring(phba); 9485 if (unlikely(!pring)) 9486 return; 9487 9488 if (phba->pport->load_flag & FC_UNLOADING) 9489 return; 9490 9491 spin_lock_irq(&phba->hbalock); 9492 if (phba->sli_rev == LPFC_SLI_REV4) 9493 spin_lock(&pring->ring_lock); 9494 9495 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { 9496 ulp_command = get_job_cmnd(phba, piocb); 9497 ulp_context = get_job_ulpcontext(phba, piocb); 9498 did = get_job_els_rsp64_did(phba, piocb); 9499 9500 if (phba->sli_rev == LPFC_SLI_REV4) { 9501 iotag = get_wqe_reqtag(piocb); 9502 } else { 9503 cmd = &piocb->iocb; 9504 iotag = cmd->ulpIoTag; 9505 } 9506 9507 if ((piocb->cmd_flag & LPFC_IO_LIBDFC) != 0 || 9508 ulp_command == CMD_ABORT_XRI_CX || 9509 ulp_command == CMD_ABORT_XRI_CN || 9510 ulp_command == CMD_CLOSE_XRI_CN) 9511 continue; 9512 9513 if (piocb->vport != vport) 9514 continue; 9515 9516 pcmd = piocb->cmd_dmabuf; 9517 if (pcmd) 9518 els_command = *(uint32_t *) (pcmd->virt); 9519 9520 if (els_command == ELS_CMD_FARP || 9521 els_command == ELS_CMD_FARPR || 9522 els_command == ELS_CMD_FDISC) 9523 continue; 9524 9525 if (piocb->drvrTimeout > 0) { 9526 if (piocb->drvrTimeout >= timeout) 9527 piocb->drvrTimeout -= timeout; 9528 else 9529 piocb->drvrTimeout = 0; 9530 continue; 9531 } 9532 9533 remote_ID = 0xffffffff; 9534 if (ulp_command != CMD_GEN_REQUEST64_CR) { 9535 remote_ID = did; 9536 } else { 9537 struct lpfc_nodelist *ndlp; 9538 ndlp = __lpfc_findnode_rpi(vport, ulp_context); 9539 if (ndlp) 9540 remote_ID = ndlp->nlp_DID; 9541 } 9542 list_add_tail(&piocb->dlist, &abort_list); 9543 } 9544 if (phba->sli_rev == LPFC_SLI_REV4) 9545 spin_unlock(&pring->ring_lock); 9546 spin_unlock_irq(&phba->hbalock); 9547 9548 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { 9549 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9550 "0127 ELS timeout Data: x%x x%x x%x " 9551 "x%x\n", els_command, 9552 remote_ID, ulp_command, iotag); 9553 9554 spin_lock_irq(&phba->hbalock); 9555 list_del_init(&piocb->dlist); 9556 lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL); 9557 spin_unlock_irq(&phba->hbalock); 9558 } 9559 9560 /* Make sure HBA is alive */ 9561 lpfc_issue_hb_tmo(phba); 9562 9563 if (!list_empty(&pring->txcmplq)) 9564 if (!(phba->pport->load_flag & FC_UNLOADING)) 9565 mod_timer(&vport->els_tmofunc, 9566 jiffies + msecs_to_jiffies(1000 * timeout)); 9567 } 9568 9569 /** 9570 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport 9571 * @vport: pointer to a host virtual N_Port data structure. 9572 * 9573 * This routine is used to clean up all the outstanding ELS commands on a 9574 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport() 9575 * routine. After that, it walks the ELS transmit queue to remove all the 9576 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For 9577 * the IOCBs with a non-NULL completion callback function, the callback 9578 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and 9579 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion 9580 * callback function, the IOCB will simply be released. Finally, it walks 9581 * the ELS transmit completion queue to issue an abort IOCB to any transmit 9582 * completion queue IOCB that is associated with the @vport and is not 9583 * an IOCB from libdfc (i.e., the management plane IOCBs that are not 9584 * part of the discovery state machine) out to HBA by invoking the 9585 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the 9586 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee 9587 * the IOCBs are aborted when this function returns. 9588 **/ 9589 void 9590 lpfc_els_flush_cmd(struct lpfc_vport *vport) 9591 { 9592 LIST_HEAD(abort_list); 9593 struct lpfc_hba *phba = vport->phba; 9594 struct lpfc_sli_ring *pring; 9595 struct lpfc_iocbq *tmp_iocb, *piocb; 9596 u32 ulp_command; 9597 unsigned long iflags = 0; 9598 9599 lpfc_fabric_abort_vport(vport); 9600 9601 /* 9602 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate 9603 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag 9604 * ultimately grabs the ring_lock, the driver must splice the list into 9605 * a working list and release the locks before calling the abort. 9606 */ 9607 spin_lock_irqsave(&phba->hbalock, iflags); 9608 pring = lpfc_phba_elsring(phba); 9609 9610 /* Bail out if we've no ELS wq, like in PCI error recovery case. */ 9611 if (unlikely(!pring)) { 9612 spin_unlock_irqrestore(&phba->hbalock, iflags); 9613 return; 9614 } 9615 9616 if (phba->sli_rev == LPFC_SLI_REV4) 9617 spin_lock(&pring->ring_lock); 9618 9619 /* First we need to issue aborts to outstanding cmds on txcmpl */ 9620 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { 9621 if (piocb->cmd_flag & LPFC_IO_LIBDFC) 9622 continue; 9623 9624 if (piocb->vport != vport) 9625 continue; 9626 9627 if (piocb->cmd_flag & LPFC_DRIVER_ABORTED) 9628 continue; 9629 9630 /* On the ELS ring we can have ELS_REQUESTs or 9631 * GEN_REQUESTs waiting for a response. 9632 */ 9633 ulp_command = get_job_cmnd(phba, piocb); 9634 if (ulp_command == CMD_ELS_REQUEST64_CR) { 9635 list_add_tail(&piocb->dlist, &abort_list); 9636 9637 /* If the link is down when flushing ELS commands 9638 * the firmware will not complete them till after 9639 * the link comes back up. This may confuse 9640 * discovery for the new link up, so we need to 9641 * change the compl routine to just clean up the iocb 9642 * and avoid any retry logic. 9643 */ 9644 if (phba->link_state == LPFC_LINK_DOWN) 9645 piocb->cmd_cmpl = lpfc_cmpl_els_link_down; 9646 } 9647 if (ulp_command == CMD_GEN_REQUEST64_CR) 9648 list_add_tail(&piocb->dlist, &abort_list); 9649 } 9650 9651 if (phba->sli_rev == LPFC_SLI_REV4) 9652 spin_unlock(&pring->ring_lock); 9653 spin_unlock_irqrestore(&phba->hbalock, iflags); 9654 9655 /* Abort each txcmpl iocb on aborted list and remove the dlist links. */ 9656 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { 9657 spin_lock_irqsave(&phba->hbalock, iflags); 9658 list_del_init(&piocb->dlist); 9659 lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL); 9660 spin_unlock_irqrestore(&phba->hbalock, iflags); 9661 } 9662 /* Make sure HBA is alive */ 9663 lpfc_issue_hb_tmo(phba); 9664 9665 if (!list_empty(&abort_list)) 9666 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9667 "3387 abort list for txq not empty\n"); 9668 INIT_LIST_HEAD(&abort_list); 9669 9670 spin_lock_irqsave(&phba->hbalock, iflags); 9671 if (phba->sli_rev == LPFC_SLI_REV4) 9672 spin_lock(&pring->ring_lock); 9673 9674 /* No need to abort the txq list, 9675 * just queue them up for lpfc_sli_cancel_iocbs 9676 */ 9677 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { 9678 ulp_command = get_job_cmnd(phba, piocb); 9679 9680 if (piocb->cmd_flag & LPFC_IO_LIBDFC) 9681 continue; 9682 9683 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ 9684 if (ulp_command == CMD_QUE_RING_BUF_CN || 9685 ulp_command == CMD_QUE_RING_BUF64_CN || 9686 ulp_command == CMD_CLOSE_XRI_CN || 9687 ulp_command == CMD_ABORT_XRI_CN || 9688 ulp_command == CMD_ABORT_XRI_CX) 9689 continue; 9690 9691 if (piocb->vport != vport) 9692 continue; 9693 9694 list_del_init(&piocb->list); 9695 list_add_tail(&piocb->list, &abort_list); 9696 } 9697 9698 /* The same holds true for any FLOGI/FDISC on the fabric_iocb_list */ 9699 if (vport == phba->pport) { 9700 list_for_each_entry_safe(piocb, tmp_iocb, 9701 &phba->fabric_iocb_list, list) { 9702 list_del_init(&piocb->list); 9703 list_add_tail(&piocb->list, &abort_list); 9704 } 9705 } 9706 9707 if (phba->sli_rev == LPFC_SLI_REV4) 9708 spin_unlock(&pring->ring_lock); 9709 spin_unlock_irqrestore(&phba->hbalock, iflags); 9710 9711 /* Cancel all the IOCBs from the completions list */ 9712 lpfc_sli_cancel_iocbs(phba, &abort_list, 9713 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 9714 9715 return; 9716 } 9717 9718 /** 9719 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA 9720 * @phba: pointer to lpfc hba data structure. 9721 * 9722 * This routine is used to clean up all the outstanding ELS commands on a 9723 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba() 9724 * routine. After that, it walks the ELS transmit queue to remove all the 9725 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For 9726 * the IOCBs with the completion callback function associated, the callback 9727 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and 9728 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion 9729 * callback function associated, the IOCB will simply be released. Finally, 9730 * it walks the ELS transmit completion queue to issue an abort IOCB to any 9731 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the 9732 * management plane IOCBs that are not part of the discovery state machine) 9733 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine. 9734 **/ 9735 void 9736 lpfc_els_flush_all_cmd(struct lpfc_hba *phba) 9737 { 9738 struct lpfc_vport *vport; 9739 9740 spin_lock_irq(&phba->port_list_lock); 9741 list_for_each_entry(vport, &phba->port_list, listentry) 9742 lpfc_els_flush_cmd(vport); 9743 spin_unlock_irq(&phba->port_list_lock); 9744 9745 return; 9746 } 9747 9748 /** 9749 * lpfc_send_els_failure_event - Posts an ELS command failure event 9750 * @phba: Pointer to hba context object. 9751 * @cmdiocbp: Pointer to command iocb which reported error. 9752 * @rspiocbp: Pointer to response iocb which reported error. 9753 * 9754 * This function sends an event when there is an ELS command 9755 * failure. 9756 **/ 9757 void 9758 lpfc_send_els_failure_event(struct lpfc_hba *phba, 9759 struct lpfc_iocbq *cmdiocbp, 9760 struct lpfc_iocbq *rspiocbp) 9761 { 9762 struct lpfc_vport *vport = cmdiocbp->vport; 9763 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 9764 struct lpfc_lsrjt_event lsrjt_event; 9765 struct lpfc_fabric_event_header fabric_event; 9766 struct ls_rjt stat; 9767 struct lpfc_nodelist *ndlp; 9768 uint32_t *pcmd; 9769 u32 ulp_status, ulp_word4; 9770 9771 ndlp = cmdiocbp->ndlp; 9772 if (!ndlp) 9773 return; 9774 9775 ulp_status = get_job_ulpstatus(phba, rspiocbp); 9776 ulp_word4 = get_job_word4(phba, rspiocbp); 9777 9778 if (ulp_status == IOSTAT_LS_RJT) { 9779 lsrjt_event.header.event_type = FC_REG_ELS_EVENT; 9780 lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV; 9781 memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname, 9782 sizeof(struct lpfc_name)); 9783 memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename, 9784 sizeof(struct lpfc_name)); 9785 pcmd = (uint32_t *)cmdiocbp->cmd_dmabuf->virt; 9786 lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0; 9787 stat.un.ls_rjt_error_be = cpu_to_be32(ulp_word4); 9788 lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode; 9789 lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp; 9790 fc_host_post_vendor_event(shost, 9791 fc_get_event_number(), 9792 sizeof(lsrjt_event), 9793 (char *)&lsrjt_event, 9794 LPFC_NL_VENDOR_ID); 9795 return; 9796 } 9797 if (ulp_status == IOSTAT_NPORT_BSY || 9798 ulp_status == IOSTAT_FABRIC_BSY) { 9799 fabric_event.event_type = FC_REG_FABRIC_EVENT; 9800 if (ulp_status == IOSTAT_NPORT_BSY) 9801 fabric_event.subcategory = LPFC_EVENT_PORT_BUSY; 9802 else 9803 fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY; 9804 memcpy(fabric_event.wwpn, &ndlp->nlp_portname, 9805 sizeof(struct lpfc_name)); 9806 memcpy(fabric_event.wwnn, &ndlp->nlp_nodename, 9807 sizeof(struct lpfc_name)); 9808 fc_host_post_vendor_event(shost, 9809 fc_get_event_number(), 9810 sizeof(fabric_event), 9811 (char *)&fabric_event, 9812 LPFC_NL_VENDOR_ID); 9813 return; 9814 } 9815 9816 } 9817 9818 /** 9819 * lpfc_send_els_event - Posts unsolicited els event 9820 * @vport: Pointer to vport object. 9821 * @ndlp: Pointer FC node object. 9822 * @payload: ELS command code type. 9823 * 9824 * This function posts an event when there is an incoming 9825 * unsolicited ELS command. 9826 **/ 9827 static void 9828 lpfc_send_els_event(struct lpfc_vport *vport, 9829 struct lpfc_nodelist *ndlp, 9830 uint32_t *payload) 9831 { 9832 struct lpfc_els_event_header *els_data = NULL; 9833 struct lpfc_logo_event *logo_data = NULL; 9834 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 9835 9836 if (*payload == ELS_CMD_LOGO) { 9837 logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL); 9838 if (!logo_data) { 9839 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9840 "0148 Failed to allocate memory " 9841 "for LOGO event\n"); 9842 return; 9843 } 9844 els_data = &logo_data->header; 9845 } else { 9846 els_data = kmalloc(sizeof(struct lpfc_els_event_header), 9847 GFP_KERNEL); 9848 if (!els_data) { 9849 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9850 "0149 Failed to allocate memory " 9851 "for ELS event\n"); 9852 return; 9853 } 9854 } 9855 els_data->event_type = FC_REG_ELS_EVENT; 9856 switch (*payload) { 9857 case ELS_CMD_PLOGI: 9858 els_data->subcategory = LPFC_EVENT_PLOGI_RCV; 9859 break; 9860 case ELS_CMD_PRLO: 9861 els_data->subcategory = LPFC_EVENT_PRLO_RCV; 9862 break; 9863 case ELS_CMD_ADISC: 9864 els_data->subcategory = LPFC_EVENT_ADISC_RCV; 9865 break; 9866 case ELS_CMD_LOGO: 9867 els_data->subcategory = LPFC_EVENT_LOGO_RCV; 9868 /* Copy the WWPN in the LOGO payload */ 9869 memcpy(logo_data->logo_wwpn, &payload[2], 9870 sizeof(struct lpfc_name)); 9871 break; 9872 default: 9873 kfree(els_data); 9874 return; 9875 } 9876 memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); 9877 memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); 9878 if (*payload == ELS_CMD_LOGO) { 9879 fc_host_post_vendor_event(shost, 9880 fc_get_event_number(), 9881 sizeof(struct lpfc_logo_event), 9882 (char *)logo_data, 9883 LPFC_NL_VENDOR_ID); 9884 kfree(logo_data); 9885 } else { 9886 fc_host_post_vendor_event(shost, 9887 fc_get_event_number(), 9888 sizeof(struct lpfc_els_event_header), 9889 (char *)els_data, 9890 LPFC_NL_VENDOR_ID); 9891 kfree(els_data); 9892 } 9893 9894 return; 9895 } 9896 9897 9898 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_li_event_nm, fc_fpin_li_event_types, 9899 FC_FPIN_LI_EVT_TYPES_INIT); 9900 9901 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_deli_event_nm, fc_fpin_deli_event_types, 9902 FC_FPIN_DELI_EVT_TYPES_INIT); 9903 9904 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_congn_event_nm, fc_fpin_congn_event_types, 9905 FC_FPIN_CONGN_EVT_TYPES_INIT); 9906 9907 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_congn_severity_nm, 9908 fc_fpin_congn_severity_types, 9909 FC_FPIN_CONGN_SEVERITY_INIT); 9910 9911 9912 /** 9913 * lpfc_display_fpin_wwpn - Display WWPNs accessible by the attached port 9914 * @phba: Pointer to phba object. 9915 * @wwnlist: Pointer to list of WWPNs in FPIN payload 9916 * @cnt: count of WWPNs in FPIN payload 9917 * 9918 * This routine is called by LI and PC descriptors. 9919 * Limit the number of WWPNs displayed to 6 log messages, 6 per log message 9920 */ 9921 static void 9922 lpfc_display_fpin_wwpn(struct lpfc_hba *phba, __be64 *wwnlist, u32 cnt) 9923 { 9924 char buf[LPFC_FPIN_WWPN_LINE_SZ]; 9925 __be64 wwn; 9926 u64 wwpn; 9927 int i, len; 9928 int line = 0; 9929 int wcnt = 0; 9930 bool endit = false; 9931 9932 len = scnprintf(buf, LPFC_FPIN_WWPN_LINE_SZ, "Accessible WWPNs:"); 9933 for (i = 0; i < cnt; i++) { 9934 /* Are we on the last WWPN */ 9935 if (i == (cnt - 1)) 9936 endit = true; 9937 9938 /* Extract the next WWPN from the payload */ 9939 wwn = *wwnlist++; 9940 wwpn = be64_to_cpu(wwn); 9941 len += scnprintf(buf + len, LPFC_FPIN_WWPN_LINE_SZ - len, 9942 " %016llx", wwpn); 9943 9944 /* Log a message if we are on the last WWPN 9945 * or if we hit the max allowed per message. 9946 */ 9947 wcnt++; 9948 if (wcnt == LPFC_FPIN_WWPN_LINE_CNT || endit) { 9949 buf[len] = 0; 9950 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 9951 "4686 %s\n", buf); 9952 9953 /* Check if we reached the last WWPN */ 9954 if (endit) 9955 return; 9956 9957 /* Limit the number of log message displayed per FPIN */ 9958 line++; 9959 if (line == LPFC_FPIN_WWPN_NUM_LINE) { 9960 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 9961 "4687 %d WWPNs Truncated\n", 9962 cnt - i - 1); 9963 return; 9964 } 9965 9966 /* Start over with next log message */ 9967 wcnt = 0; 9968 len = scnprintf(buf, LPFC_FPIN_WWPN_LINE_SZ, 9969 "Additional WWPNs:"); 9970 } 9971 } 9972 } 9973 9974 /** 9975 * lpfc_els_rcv_fpin_li - Process an FPIN Link Integrity Event. 9976 * @phba: Pointer to phba object. 9977 * @tlv: Pointer to the Link Integrity Notification Descriptor. 9978 * 9979 * This function processes a Link Integrity FPIN event by logging a message. 9980 **/ 9981 static void 9982 lpfc_els_rcv_fpin_li(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 9983 { 9984 struct fc_fn_li_desc *li = (struct fc_fn_li_desc *)tlv; 9985 const char *li_evt_str; 9986 u32 li_evt, cnt; 9987 9988 li_evt = be16_to_cpu(li->event_type); 9989 li_evt_str = lpfc_get_fpin_li_event_nm(li_evt); 9990 cnt = be32_to_cpu(li->pname_count); 9991 9992 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 9993 "4680 FPIN Link Integrity %s (x%x) " 9994 "Detecting PN x%016llx Attached PN x%016llx " 9995 "Duration %d mSecs Count %d Port Cnt %d\n", 9996 li_evt_str, li_evt, 9997 be64_to_cpu(li->detecting_wwpn), 9998 be64_to_cpu(li->attached_wwpn), 9999 be32_to_cpu(li->event_threshold), 10000 be32_to_cpu(li->event_count), cnt); 10001 10002 lpfc_display_fpin_wwpn(phba, (__be64 *)&li->pname_list, cnt); 10003 } 10004 10005 /** 10006 * lpfc_els_rcv_fpin_del - Process an FPIN Delivery Event. 10007 * @phba: Pointer to hba object. 10008 * @tlv: Pointer to the Delivery Notification Descriptor TLV 10009 * 10010 * This function processes a Delivery FPIN event by logging a message. 10011 **/ 10012 static void 10013 lpfc_els_rcv_fpin_del(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 10014 { 10015 struct fc_fn_deli_desc *del = (struct fc_fn_deli_desc *)tlv; 10016 const char *del_rsn_str; 10017 u32 del_rsn; 10018 __be32 *frame; 10019 10020 del_rsn = be16_to_cpu(del->deli_reason_code); 10021 del_rsn_str = lpfc_get_fpin_deli_event_nm(del_rsn); 10022 10023 /* Skip over desc_tag/desc_len header to payload */ 10024 frame = (__be32 *)(del + 1); 10025 10026 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 10027 "4681 FPIN Delivery %s (x%x) " 10028 "Detecting PN x%016llx Attached PN x%016llx " 10029 "DiscHdr0 x%08x " 10030 "DiscHdr1 x%08x DiscHdr2 x%08x DiscHdr3 x%08x " 10031 "DiscHdr4 x%08x DiscHdr5 x%08x\n", 10032 del_rsn_str, del_rsn, 10033 be64_to_cpu(del->detecting_wwpn), 10034 be64_to_cpu(del->attached_wwpn), 10035 be32_to_cpu(frame[0]), 10036 be32_to_cpu(frame[1]), 10037 be32_to_cpu(frame[2]), 10038 be32_to_cpu(frame[3]), 10039 be32_to_cpu(frame[4]), 10040 be32_to_cpu(frame[5])); 10041 } 10042 10043 /** 10044 * lpfc_els_rcv_fpin_peer_cgn - Process a FPIN Peer Congestion Event. 10045 * @phba: Pointer to hba object. 10046 * @tlv: Pointer to the Peer Congestion Notification Descriptor TLV 10047 * 10048 * This function processes a Peer Congestion FPIN event by logging a message. 10049 **/ 10050 static void 10051 lpfc_els_rcv_fpin_peer_cgn(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 10052 { 10053 struct fc_fn_peer_congn_desc *pc = (struct fc_fn_peer_congn_desc *)tlv; 10054 const char *pc_evt_str; 10055 u32 pc_evt, cnt; 10056 10057 pc_evt = be16_to_cpu(pc->event_type); 10058 pc_evt_str = lpfc_get_fpin_congn_event_nm(pc_evt); 10059 cnt = be32_to_cpu(pc->pname_count); 10060 10061 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_ELS, 10062 "4684 FPIN Peer Congestion %s (x%x) " 10063 "Duration %d mSecs " 10064 "Detecting PN x%016llx Attached PN x%016llx " 10065 "Impacted Port Cnt %d\n", 10066 pc_evt_str, pc_evt, 10067 be32_to_cpu(pc->event_period), 10068 be64_to_cpu(pc->detecting_wwpn), 10069 be64_to_cpu(pc->attached_wwpn), 10070 cnt); 10071 10072 lpfc_display_fpin_wwpn(phba, (__be64 *)&pc->pname_list, cnt); 10073 } 10074 10075 /** 10076 * lpfc_els_rcv_fpin_cgn - Process an FPIN Congestion notification 10077 * @phba: Pointer to hba object. 10078 * @tlv: Pointer to the Congestion Notification Descriptor TLV 10079 * 10080 * This function processes an FPIN Congestion Notifiction. The notification 10081 * could be an Alarm or Warning. This routine feeds that data into driver's 10082 * running congestion algorithm. It also processes the FPIN by 10083 * logging a message. It returns 1 to indicate deliver this message 10084 * to the upper layer or 0 to indicate don't deliver it. 10085 **/ 10086 static int 10087 lpfc_els_rcv_fpin_cgn(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 10088 { 10089 struct lpfc_cgn_info *cp; 10090 struct fc_fn_congn_desc *cgn = (struct fc_fn_congn_desc *)tlv; 10091 const char *cgn_evt_str; 10092 u32 cgn_evt; 10093 const char *cgn_sev_str; 10094 u32 cgn_sev; 10095 uint16_t value; 10096 u32 crc; 10097 bool nm_log = false; 10098 int rc = 1; 10099 10100 cgn_evt = be16_to_cpu(cgn->event_type); 10101 cgn_evt_str = lpfc_get_fpin_congn_event_nm(cgn_evt); 10102 cgn_sev = cgn->severity; 10103 cgn_sev_str = lpfc_get_fpin_congn_severity_nm(cgn_sev); 10104 10105 /* The driver only takes action on a Credit Stall or Oversubscription 10106 * event type to engage the IO algorithm. The driver prints an 10107 * unmaskable message only for Lost Credit and Credit Stall. 10108 * TODO: Still need to have definition of host action on clear, 10109 * lost credit and device specific event types. 10110 */ 10111 switch (cgn_evt) { 10112 case FPIN_CONGN_LOST_CREDIT: 10113 nm_log = true; 10114 break; 10115 case FPIN_CONGN_CREDIT_STALL: 10116 nm_log = true; 10117 fallthrough; 10118 case FPIN_CONGN_OVERSUBSCRIPTION: 10119 if (cgn_evt == FPIN_CONGN_OVERSUBSCRIPTION) 10120 nm_log = false; 10121 switch (cgn_sev) { 10122 case FPIN_CONGN_SEVERITY_ERROR: 10123 /* Take action here for an Alarm event */ 10124 if (phba->cmf_active_mode != LPFC_CFG_OFF) { 10125 if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) { 10126 /* Track of alarm cnt for SYNC_WQE */ 10127 atomic_inc(&phba->cgn_sync_alarm_cnt); 10128 } 10129 /* Track alarm cnt for cgn_info regardless 10130 * of whether CMF is configured for Signals 10131 * or FPINs. 10132 */ 10133 atomic_inc(&phba->cgn_fabric_alarm_cnt); 10134 goto cleanup; 10135 } 10136 break; 10137 case FPIN_CONGN_SEVERITY_WARNING: 10138 /* Take action here for a Warning event */ 10139 if (phba->cmf_active_mode != LPFC_CFG_OFF) { 10140 if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) { 10141 /* Track of warning cnt for SYNC_WQE */ 10142 atomic_inc(&phba->cgn_sync_warn_cnt); 10143 } 10144 /* Track warning cnt and freq for cgn_info 10145 * regardless of whether CMF is configured for 10146 * Signals or FPINs. 10147 */ 10148 atomic_inc(&phba->cgn_fabric_warn_cnt); 10149 cleanup: 10150 /* Save frequency in ms */ 10151 phba->cgn_fpin_frequency = 10152 be32_to_cpu(cgn->event_period); 10153 value = phba->cgn_fpin_frequency; 10154 if (phba->cgn_i) { 10155 cp = (struct lpfc_cgn_info *) 10156 phba->cgn_i->virt; 10157 cp->cgn_alarm_freq = 10158 cpu_to_le16(value); 10159 cp->cgn_warn_freq = 10160 cpu_to_le16(value); 10161 crc = lpfc_cgn_calc_crc32 10162 (cp, 10163 LPFC_CGN_INFO_SZ, 10164 LPFC_CGN_CRC32_SEED); 10165 cp->cgn_info_crc = cpu_to_le32(crc); 10166 } 10167 10168 /* Don't deliver to upper layer since 10169 * driver took action on this tlv. 10170 */ 10171 rc = 0; 10172 } 10173 break; 10174 } 10175 break; 10176 } 10177 10178 /* Change the log level to unmaskable for the following event types. */ 10179 lpfc_printf_log(phba, (nm_log ? KERN_WARNING : KERN_INFO), 10180 LOG_CGN_MGMT | LOG_ELS, 10181 "4683 FPIN CONGESTION %s type %s (x%x) Event " 10182 "Duration %d mSecs\n", 10183 cgn_sev_str, cgn_evt_str, cgn_evt, 10184 be32_to_cpu(cgn->event_period)); 10185 return rc; 10186 } 10187 10188 void 10189 lpfc_els_rcv_fpin(struct lpfc_vport *vport, void *p, u32 fpin_length) 10190 { 10191 struct lpfc_hba *phba = vport->phba; 10192 struct fc_els_fpin *fpin = (struct fc_els_fpin *)p; 10193 struct fc_tlv_desc *tlv, *first_tlv, *current_tlv; 10194 const char *dtag_nm; 10195 int desc_cnt = 0, bytes_remain, cnt; 10196 u32 dtag, deliver = 0; 10197 int len; 10198 10199 /* FPINs handled only if we are in the right discovery state */ 10200 if (vport->port_state < LPFC_DISC_AUTH) 10201 return; 10202 10203 /* make sure there is the full fpin header */ 10204 if (fpin_length < sizeof(struct fc_els_fpin)) 10205 return; 10206 10207 /* Sanity check descriptor length. The desc_len value does not 10208 * include space for the ELS command and the desc_len fields. 10209 */ 10210 len = be32_to_cpu(fpin->desc_len); 10211 if (fpin_length < len + sizeof(struct fc_els_fpin)) { 10212 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 10213 "4671 Bad ELS FPIN length %d: %d\n", 10214 len, fpin_length); 10215 return; 10216 } 10217 10218 tlv = (struct fc_tlv_desc *)&fpin->fpin_desc[0]; 10219 first_tlv = tlv; 10220 bytes_remain = fpin_length - offsetof(struct fc_els_fpin, fpin_desc); 10221 bytes_remain = min_t(u32, bytes_remain, be32_to_cpu(fpin->desc_len)); 10222 10223 /* process each descriptor separately */ 10224 while (bytes_remain >= FC_TLV_DESC_HDR_SZ && 10225 bytes_remain >= FC_TLV_DESC_SZ_FROM_LENGTH(tlv)) { 10226 dtag = be32_to_cpu(tlv->desc_tag); 10227 switch (dtag) { 10228 case ELS_DTAG_LNK_INTEGRITY: 10229 lpfc_els_rcv_fpin_li(phba, tlv); 10230 deliver = 1; 10231 break; 10232 case ELS_DTAG_DELIVERY: 10233 lpfc_els_rcv_fpin_del(phba, tlv); 10234 deliver = 1; 10235 break; 10236 case ELS_DTAG_PEER_CONGEST: 10237 lpfc_els_rcv_fpin_peer_cgn(phba, tlv); 10238 deliver = 1; 10239 break; 10240 case ELS_DTAG_CONGESTION: 10241 deliver = lpfc_els_rcv_fpin_cgn(phba, tlv); 10242 break; 10243 default: 10244 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 10245 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 10246 "4678 unknown FPIN descriptor[%d]: " 10247 "tag x%x (%s)\n", 10248 desc_cnt, dtag, dtag_nm); 10249 10250 /* If descriptor is bad, drop the rest of the data */ 10251 return; 10252 } 10253 lpfc_cgn_update_stat(phba, dtag); 10254 cnt = be32_to_cpu(tlv->desc_len); 10255 10256 /* Sanity check descriptor length. The desc_len value does not 10257 * include space for the desc_tag and the desc_len fields. 10258 */ 10259 len -= (cnt + sizeof(struct fc_tlv_desc)); 10260 if (len < 0) { 10261 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 10262 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 10263 "4672 Bad FPIN descriptor TLV length " 10264 "%d: %d %d %s\n", 10265 cnt, len, fpin_length, dtag_nm); 10266 return; 10267 } 10268 10269 current_tlv = tlv; 10270 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv); 10271 tlv = fc_tlv_next_desc(tlv); 10272 10273 /* Format payload such that the FPIN delivered to the 10274 * upper layer is a single descriptor FPIN. 10275 */ 10276 if (desc_cnt) 10277 memcpy(first_tlv, current_tlv, 10278 (cnt + sizeof(struct fc_els_fpin))); 10279 10280 /* Adjust the length so that it only reflects a 10281 * single descriptor FPIN. 10282 */ 10283 fpin_length = cnt + sizeof(struct fc_els_fpin); 10284 fpin->desc_len = cpu_to_be32(fpin_length); 10285 fpin_length += sizeof(struct fc_els_fpin); /* the entire FPIN */ 10286 10287 /* Send every descriptor individually to the upper layer */ 10288 if (deliver) 10289 fc_host_fpin_rcv(lpfc_shost_from_vport(vport), 10290 fpin_length, (char *)fpin, 0); 10291 desc_cnt++; 10292 } 10293 } 10294 10295 /** 10296 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer 10297 * @phba: pointer to lpfc hba data structure. 10298 * @pring: pointer to a SLI ring. 10299 * @vport: pointer to a host virtual N_Port data structure. 10300 * @elsiocb: pointer to lpfc els command iocb data structure. 10301 * 10302 * This routine is used for processing the IOCB associated with a unsolicited 10303 * event. It first determines whether there is an existing ndlp that matches 10304 * the DID from the unsolicited IOCB. If not, it will create a new one with 10305 * the DID from the unsolicited IOCB. The ELS command from the unsolicited 10306 * IOCB is then used to invoke the proper routine and to set up proper state 10307 * of the discovery state machine. 10308 **/ 10309 static void 10310 lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 10311 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) 10312 { 10313 struct lpfc_nodelist *ndlp; 10314 struct ls_rjt stat; 10315 u32 *payload, payload_len; 10316 u32 cmd = 0, did = 0, newnode, status = 0; 10317 uint8_t rjt_exp, rjt_err = 0, init_link = 0; 10318 struct lpfc_wcqe_complete *wcqe_cmpl = NULL; 10319 LPFC_MBOXQ_t *mbox; 10320 10321 if (!vport || !elsiocb->cmd_dmabuf) 10322 goto dropit; 10323 10324 newnode = 0; 10325 wcqe_cmpl = &elsiocb->wcqe_cmpl; 10326 payload = elsiocb->cmd_dmabuf->virt; 10327 if (phba->sli_rev == LPFC_SLI_REV4) 10328 payload_len = wcqe_cmpl->total_data_placed; 10329 else 10330 payload_len = elsiocb->iocb.unsli3.rcvsli3.acc_len; 10331 status = get_job_ulpstatus(phba, elsiocb); 10332 cmd = *payload; 10333 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) 10334 lpfc_sli3_post_buffer(phba, pring, 1); 10335 10336 did = get_job_els_rsp64_did(phba, elsiocb); 10337 if (status) { 10338 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10339 "RCV Unsol ELS: status:x%x/x%x did:x%x", 10340 status, get_job_word4(phba, elsiocb), did); 10341 goto dropit; 10342 } 10343 10344 /* Check to see if link went down during discovery */ 10345 if (lpfc_els_chk_latt(vport)) 10346 goto dropit; 10347 10348 /* Ignore traffic received during vport shutdown. */ 10349 if (vport->load_flag & FC_UNLOADING) 10350 goto dropit; 10351 10352 /* If NPort discovery is delayed drop incoming ELS */ 10353 if ((vport->fc_flag & FC_DISC_DELAYED) && 10354 (cmd != ELS_CMD_PLOGI)) 10355 goto dropit; 10356 10357 ndlp = lpfc_findnode_did(vport, did); 10358 if (!ndlp) { 10359 /* Cannot find existing Fabric ndlp, so allocate a new one */ 10360 ndlp = lpfc_nlp_init(vport, did); 10361 if (!ndlp) 10362 goto dropit; 10363 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 10364 newnode = 1; 10365 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) 10366 ndlp->nlp_type |= NLP_FABRIC; 10367 } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 10368 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 10369 newnode = 1; 10370 } 10371 10372 phba->fc_stat.elsRcvFrame++; 10373 10374 /* 10375 * Do not process any unsolicited ELS commands 10376 * if the ndlp is in DEV_LOSS 10377 */ 10378 spin_lock_irq(&ndlp->lock); 10379 if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) { 10380 spin_unlock_irq(&ndlp->lock); 10381 if (newnode) 10382 lpfc_nlp_put(ndlp); 10383 goto dropit; 10384 } 10385 spin_unlock_irq(&ndlp->lock); 10386 10387 elsiocb->ndlp = lpfc_nlp_get(ndlp); 10388 if (!elsiocb->ndlp) 10389 goto dropit; 10390 elsiocb->vport = vport; 10391 10392 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { 10393 cmd &= ELS_CMD_MASK; 10394 } 10395 /* ELS command <elsCmd> received from NPORT <did> */ 10396 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 10397 "0112 ELS command x%x received from NPORT x%x " 10398 "refcnt %d Data: x%x x%x x%x x%x\n", 10399 cmd, did, kref_read(&ndlp->kref), vport->port_state, 10400 vport->fc_flag, vport->fc_myDID, vport->fc_prevDID); 10401 10402 /* reject till our FLOGI completes or PLOGI assigned DID via PT2PT */ 10403 if ((vport->port_state < LPFC_FABRIC_CFG_LINK) && 10404 (cmd != ELS_CMD_FLOGI) && 10405 !((cmd == ELS_CMD_PLOGI) && (vport->fc_flag & FC_PT2PT))) { 10406 rjt_err = LSRJT_LOGICAL_BSY; 10407 rjt_exp = LSEXP_NOTHING_MORE; 10408 goto lsrjt; 10409 } 10410 10411 switch (cmd) { 10412 case ELS_CMD_PLOGI: 10413 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10414 "RCV PLOGI: did:x%x/ste:x%x flg:x%x", 10415 did, vport->port_state, ndlp->nlp_flag); 10416 10417 phba->fc_stat.elsRcvPLOGI++; 10418 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); 10419 if (phba->sli_rev == LPFC_SLI_REV4 && 10420 (phba->pport->fc_flag & FC_PT2PT)) { 10421 vport->fc_prevDID = vport->fc_myDID; 10422 /* Our DID needs to be updated before registering 10423 * the vfi. This is done in lpfc_rcv_plogi but 10424 * that is called after the reg_vfi. 10425 */ 10426 vport->fc_myDID = 10427 bf_get(els_rsp64_sid, 10428 &elsiocb->wqe.xmit_els_rsp); 10429 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 10430 "3312 Remote port assigned DID x%x " 10431 "%x\n", vport->fc_myDID, 10432 vport->fc_prevDID); 10433 } 10434 10435 lpfc_send_els_event(vport, ndlp, payload); 10436 10437 /* If Nport discovery is delayed, reject PLOGIs */ 10438 if (vport->fc_flag & FC_DISC_DELAYED) { 10439 rjt_err = LSRJT_UNABLE_TPC; 10440 rjt_exp = LSEXP_NOTHING_MORE; 10441 break; 10442 } 10443 10444 if (vport->port_state < LPFC_DISC_AUTH) { 10445 if (!(phba->pport->fc_flag & FC_PT2PT) || 10446 (phba->pport->fc_flag & FC_PT2PT_PLOGI)) { 10447 rjt_err = LSRJT_UNABLE_TPC; 10448 rjt_exp = LSEXP_NOTHING_MORE; 10449 break; 10450 } 10451 } 10452 10453 spin_lock_irq(&ndlp->lock); 10454 ndlp->nlp_flag &= ~NLP_TARGET_REMOVE; 10455 spin_unlock_irq(&ndlp->lock); 10456 10457 lpfc_disc_state_machine(vport, ndlp, elsiocb, 10458 NLP_EVT_RCV_PLOGI); 10459 10460 break; 10461 case ELS_CMD_FLOGI: 10462 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10463 "RCV FLOGI: did:x%x/ste:x%x flg:x%x", 10464 did, vport->port_state, ndlp->nlp_flag); 10465 10466 phba->fc_stat.elsRcvFLOGI++; 10467 10468 /* If the driver believes fabric discovery is done and is ready, 10469 * bounce the link. There is some descrepancy. 10470 */ 10471 if (vport->port_state >= LPFC_LOCAL_CFG_LINK && 10472 vport->fc_flag & FC_PT2PT && 10473 vport->rcv_flogi_cnt >= 1) { 10474 rjt_err = LSRJT_LOGICAL_BSY; 10475 rjt_exp = LSEXP_NOTHING_MORE; 10476 init_link++; 10477 goto lsrjt; 10478 } 10479 10480 lpfc_els_rcv_flogi(vport, elsiocb, ndlp); 10481 /* retain node if our response is deferred */ 10482 if (phba->defer_flogi_acc_flag) 10483 break; 10484 if (newnode) 10485 lpfc_disc_state_machine(vport, ndlp, NULL, 10486 NLP_EVT_DEVICE_RM); 10487 break; 10488 case ELS_CMD_LOGO: 10489 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10490 "RCV LOGO: did:x%x/ste:x%x flg:x%x", 10491 did, vport->port_state, ndlp->nlp_flag); 10492 10493 phba->fc_stat.elsRcvLOGO++; 10494 lpfc_send_els_event(vport, ndlp, payload); 10495 if (vport->port_state < LPFC_DISC_AUTH) { 10496 rjt_err = LSRJT_UNABLE_TPC; 10497 rjt_exp = LSEXP_NOTHING_MORE; 10498 break; 10499 } 10500 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); 10501 if (newnode) 10502 lpfc_disc_state_machine(vport, ndlp, NULL, 10503 NLP_EVT_DEVICE_RM); 10504 break; 10505 case ELS_CMD_PRLO: 10506 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10507 "RCV PRLO: did:x%x/ste:x%x flg:x%x", 10508 did, vport->port_state, ndlp->nlp_flag); 10509 10510 phba->fc_stat.elsRcvPRLO++; 10511 lpfc_send_els_event(vport, ndlp, payload); 10512 if (vport->port_state < LPFC_DISC_AUTH) { 10513 rjt_err = LSRJT_UNABLE_TPC; 10514 rjt_exp = LSEXP_NOTHING_MORE; 10515 break; 10516 } 10517 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); 10518 break; 10519 case ELS_CMD_LCB: 10520 phba->fc_stat.elsRcvLCB++; 10521 lpfc_els_rcv_lcb(vport, elsiocb, ndlp); 10522 break; 10523 case ELS_CMD_RDP: 10524 phba->fc_stat.elsRcvRDP++; 10525 lpfc_els_rcv_rdp(vport, elsiocb, ndlp); 10526 break; 10527 case ELS_CMD_RSCN: 10528 phba->fc_stat.elsRcvRSCN++; 10529 lpfc_els_rcv_rscn(vport, elsiocb, ndlp); 10530 if (newnode) 10531 lpfc_disc_state_machine(vport, ndlp, NULL, 10532 NLP_EVT_DEVICE_RM); 10533 break; 10534 case ELS_CMD_ADISC: 10535 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10536 "RCV ADISC: did:x%x/ste:x%x flg:x%x", 10537 did, vport->port_state, ndlp->nlp_flag); 10538 10539 lpfc_send_els_event(vport, ndlp, payload); 10540 phba->fc_stat.elsRcvADISC++; 10541 if (vport->port_state < LPFC_DISC_AUTH) { 10542 rjt_err = LSRJT_UNABLE_TPC; 10543 rjt_exp = LSEXP_NOTHING_MORE; 10544 break; 10545 } 10546 lpfc_disc_state_machine(vport, ndlp, elsiocb, 10547 NLP_EVT_RCV_ADISC); 10548 break; 10549 case ELS_CMD_PDISC: 10550 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10551 "RCV PDISC: did:x%x/ste:x%x flg:x%x", 10552 did, vport->port_state, ndlp->nlp_flag); 10553 10554 phba->fc_stat.elsRcvPDISC++; 10555 if (vport->port_state < LPFC_DISC_AUTH) { 10556 rjt_err = LSRJT_UNABLE_TPC; 10557 rjt_exp = LSEXP_NOTHING_MORE; 10558 break; 10559 } 10560 lpfc_disc_state_machine(vport, ndlp, elsiocb, 10561 NLP_EVT_RCV_PDISC); 10562 break; 10563 case ELS_CMD_FARPR: 10564 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10565 "RCV FARPR: did:x%x/ste:x%x flg:x%x", 10566 did, vport->port_state, ndlp->nlp_flag); 10567 10568 phba->fc_stat.elsRcvFARPR++; 10569 lpfc_els_rcv_farpr(vport, elsiocb, ndlp); 10570 break; 10571 case ELS_CMD_FARP: 10572 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10573 "RCV FARP: did:x%x/ste:x%x flg:x%x", 10574 did, vport->port_state, ndlp->nlp_flag); 10575 10576 phba->fc_stat.elsRcvFARP++; 10577 lpfc_els_rcv_farp(vport, elsiocb, ndlp); 10578 break; 10579 case ELS_CMD_FAN: 10580 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10581 "RCV FAN: did:x%x/ste:x%x flg:x%x", 10582 did, vport->port_state, ndlp->nlp_flag); 10583 10584 phba->fc_stat.elsRcvFAN++; 10585 lpfc_els_rcv_fan(vport, elsiocb, ndlp); 10586 break; 10587 case ELS_CMD_PRLI: 10588 case ELS_CMD_NVMEPRLI: 10589 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10590 "RCV PRLI: did:x%x/ste:x%x flg:x%x", 10591 did, vport->port_state, ndlp->nlp_flag); 10592 10593 phba->fc_stat.elsRcvPRLI++; 10594 if ((vport->port_state < LPFC_DISC_AUTH) && 10595 (vport->fc_flag & FC_FABRIC)) { 10596 rjt_err = LSRJT_UNABLE_TPC; 10597 rjt_exp = LSEXP_NOTHING_MORE; 10598 break; 10599 } 10600 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); 10601 break; 10602 case ELS_CMD_LIRR: 10603 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10604 "RCV LIRR: did:x%x/ste:x%x flg:x%x", 10605 did, vport->port_state, ndlp->nlp_flag); 10606 10607 phba->fc_stat.elsRcvLIRR++; 10608 lpfc_els_rcv_lirr(vport, elsiocb, ndlp); 10609 if (newnode) 10610 lpfc_disc_state_machine(vport, ndlp, NULL, 10611 NLP_EVT_DEVICE_RM); 10612 break; 10613 case ELS_CMD_RLS: 10614 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10615 "RCV RLS: did:x%x/ste:x%x flg:x%x", 10616 did, vport->port_state, ndlp->nlp_flag); 10617 10618 phba->fc_stat.elsRcvRLS++; 10619 lpfc_els_rcv_rls(vport, elsiocb, ndlp); 10620 if (newnode) 10621 lpfc_disc_state_machine(vport, ndlp, NULL, 10622 NLP_EVT_DEVICE_RM); 10623 break; 10624 case ELS_CMD_RPL: 10625 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10626 "RCV RPL: did:x%x/ste:x%x flg:x%x", 10627 did, vport->port_state, ndlp->nlp_flag); 10628 10629 phba->fc_stat.elsRcvRPL++; 10630 lpfc_els_rcv_rpl(vport, elsiocb, ndlp); 10631 if (newnode) 10632 lpfc_disc_state_machine(vport, ndlp, NULL, 10633 NLP_EVT_DEVICE_RM); 10634 break; 10635 case ELS_CMD_RNID: 10636 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10637 "RCV RNID: did:x%x/ste:x%x flg:x%x", 10638 did, vport->port_state, ndlp->nlp_flag); 10639 10640 phba->fc_stat.elsRcvRNID++; 10641 lpfc_els_rcv_rnid(vport, elsiocb, ndlp); 10642 if (newnode) 10643 lpfc_disc_state_machine(vport, ndlp, NULL, 10644 NLP_EVT_DEVICE_RM); 10645 break; 10646 case ELS_CMD_RTV: 10647 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10648 "RCV RTV: did:x%x/ste:x%x flg:x%x", 10649 did, vport->port_state, ndlp->nlp_flag); 10650 phba->fc_stat.elsRcvRTV++; 10651 lpfc_els_rcv_rtv(vport, elsiocb, ndlp); 10652 if (newnode) 10653 lpfc_disc_state_machine(vport, ndlp, NULL, 10654 NLP_EVT_DEVICE_RM); 10655 break; 10656 case ELS_CMD_RRQ: 10657 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10658 "RCV RRQ: did:x%x/ste:x%x flg:x%x", 10659 did, vport->port_state, ndlp->nlp_flag); 10660 10661 phba->fc_stat.elsRcvRRQ++; 10662 lpfc_els_rcv_rrq(vport, elsiocb, ndlp); 10663 if (newnode) 10664 lpfc_disc_state_machine(vport, ndlp, NULL, 10665 NLP_EVT_DEVICE_RM); 10666 break; 10667 case ELS_CMD_ECHO: 10668 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10669 "RCV ECHO: did:x%x/ste:x%x flg:x%x", 10670 did, vport->port_state, ndlp->nlp_flag); 10671 10672 phba->fc_stat.elsRcvECHO++; 10673 lpfc_els_rcv_echo(vport, elsiocb, ndlp); 10674 if (newnode) 10675 lpfc_disc_state_machine(vport, ndlp, NULL, 10676 NLP_EVT_DEVICE_RM); 10677 break; 10678 case ELS_CMD_REC: 10679 /* receive this due to exchange closed */ 10680 rjt_err = LSRJT_UNABLE_TPC; 10681 rjt_exp = LSEXP_INVALID_OX_RX; 10682 break; 10683 case ELS_CMD_FPIN: 10684 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10685 "RCV FPIN: did:x%x/ste:x%x flg:x%x", 10686 did, vport->port_state, ndlp->nlp_flag); 10687 10688 lpfc_els_rcv_fpin(vport, (struct fc_els_fpin *)payload, 10689 payload_len); 10690 10691 /* There are no replies, so no rjt codes */ 10692 break; 10693 case ELS_CMD_EDC: 10694 lpfc_els_rcv_edc(vport, elsiocb, ndlp); 10695 break; 10696 case ELS_CMD_RDF: 10697 phba->fc_stat.elsRcvRDF++; 10698 /* Accept RDF only from fabric controller */ 10699 if (did != Fabric_Cntl_DID) { 10700 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS, 10701 "1115 Received RDF from invalid DID " 10702 "x%x\n", did); 10703 rjt_err = LSRJT_PROTOCOL_ERR; 10704 rjt_exp = LSEXP_NOTHING_MORE; 10705 goto lsrjt; 10706 } 10707 10708 lpfc_els_rcv_rdf(vport, elsiocb, ndlp); 10709 break; 10710 default: 10711 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10712 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", 10713 cmd, did, vport->port_state); 10714 10715 /* Unsupported ELS command, reject */ 10716 rjt_err = LSRJT_CMD_UNSUPPORTED; 10717 rjt_exp = LSEXP_NOTHING_MORE; 10718 10719 /* Unknown ELS command <elsCmd> received from NPORT <did> */ 10720 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10721 "0115 Unknown ELS command x%x " 10722 "received from NPORT x%x\n", cmd, did); 10723 if (newnode) 10724 lpfc_disc_state_machine(vport, ndlp, NULL, 10725 NLP_EVT_DEVICE_RM); 10726 break; 10727 } 10728 10729 lsrjt: 10730 /* check if need to LS_RJT received ELS cmd */ 10731 if (rjt_err) { 10732 memset(&stat, 0, sizeof(stat)); 10733 stat.un.b.lsRjtRsnCode = rjt_err; 10734 stat.un.b.lsRjtRsnCodeExp = rjt_exp; 10735 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, 10736 NULL); 10737 /* Remove the reference from above for new nodes. */ 10738 if (newnode) 10739 lpfc_disc_state_machine(vport, ndlp, NULL, 10740 NLP_EVT_DEVICE_RM); 10741 } 10742 10743 /* Release the reference on this elsiocb, not the ndlp. */ 10744 lpfc_nlp_put(elsiocb->ndlp); 10745 elsiocb->ndlp = NULL; 10746 10747 /* Special case. Driver received an unsolicited command that 10748 * unsupportable given the driver's current state. Reset the 10749 * link and start over. 10750 */ 10751 if (init_link) { 10752 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 10753 if (!mbox) 10754 return; 10755 lpfc_linkdown(phba); 10756 lpfc_init_link(phba, mbox, 10757 phba->cfg_topology, 10758 phba->cfg_link_speed); 10759 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 10760 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 10761 mbox->vport = vport; 10762 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == 10763 MBX_NOT_FINISHED) 10764 mempool_free(mbox, phba->mbox_mem_pool); 10765 } 10766 10767 return; 10768 10769 dropit: 10770 if (vport && !(vport->load_flag & FC_UNLOADING)) 10771 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10772 "0111 Dropping received ELS cmd " 10773 "Data: x%x x%x x%x x%x\n", 10774 cmd, status, get_job_word4(phba, elsiocb), did); 10775 10776 phba->fc_stat.elsRcvDrop++; 10777 } 10778 10779 /** 10780 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring 10781 * @phba: pointer to lpfc hba data structure. 10782 * @pring: pointer to a SLI ring. 10783 * @elsiocb: pointer to lpfc els iocb data structure. 10784 * 10785 * This routine is used to process an unsolicited event received from a SLI 10786 * (Service Level Interface) ring. The actual processing of the data buffer 10787 * associated with the unsolicited event is done by invoking the routine 10788 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the 10789 * SLI ring on which the unsolicited event was received. 10790 **/ 10791 void 10792 lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 10793 struct lpfc_iocbq *elsiocb) 10794 { 10795 struct lpfc_vport *vport = elsiocb->vport; 10796 u32 ulp_command, status, parameter, bde_count = 0; 10797 IOCB_t *icmd; 10798 struct lpfc_wcqe_complete *wcqe_cmpl = NULL; 10799 struct lpfc_dmabuf *bdeBuf1 = elsiocb->cmd_dmabuf; 10800 struct lpfc_dmabuf *bdeBuf2 = elsiocb->bpl_dmabuf; 10801 dma_addr_t paddr; 10802 10803 elsiocb->cmd_dmabuf = NULL; 10804 elsiocb->rsp_dmabuf = NULL; 10805 elsiocb->bpl_dmabuf = NULL; 10806 10807 wcqe_cmpl = &elsiocb->wcqe_cmpl; 10808 ulp_command = get_job_cmnd(phba, elsiocb); 10809 status = get_job_ulpstatus(phba, elsiocb); 10810 parameter = get_job_word4(phba, elsiocb); 10811 if (phba->sli_rev == LPFC_SLI_REV4) 10812 bde_count = wcqe_cmpl->word3; 10813 else 10814 bde_count = elsiocb->iocb.ulpBdeCount; 10815 10816 if (status == IOSTAT_NEED_BUFFER) { 10817 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 10818 } else if (status == IOSTAT_LOCAL_REJECT && 10819 (parameter & IOERR_PARAM_MASK) == 10820 IOERR_RCV_BUFFER_WAITING) { 10821 phba->fc_stat.NoRcvBuf++; 10822 /* Not enough posted buffers; Try posting more buffers */ 10823 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) 10824 lpfc_sli3_post_buffer(phba, pring, 0); 10825 return; 10826 } 10827 10828 if (phba->sli_rev == LPFC_SLI_REV3) { 10829 icmd = &elsiocb->iocb; 10830 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 10831 (ulp_command == CMD_IOCB_RCV_ELS64_CX || 10832 ulp_command == CMD_IOCB_RCV_SEQ64_CX)) { 10833 if (icmd->unsli3.rcvsli3.vpi == 0xffff) 10834 vport = phba->pport; 10835 else 10836 vport = lpfc_find_vport_by_vpid(phba, 10837 icmd->unsli3.rcvsli3.vpi); 10838 } 10839 } 10840 10841 /* If there are no BDEs associated 10842 * with this IOCB, there is nothing to do. 10843 */ 10844 if (bde_count == 0) 10845 return; 10846 10847 /* Account for SLI2 or SLI3 and later unsolicited buffering */ 10848 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { 10849 elsiocb->cmd_dmabuf = bdeBuf1; 10850 if (bde_count == 2) 10851 elsiocb->bpl_dmabuf = bdeBuf2; 10852 } else { 10853 icmd = &elsiocb->iocb; 10854 paddr = getPaddr(icmd->un.cont64[0].addrHigh, 10855 icmd->un.cont64[0].addrLow); 10856 elsiocb->cmd_dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, 10857 paddr); 10858 if (bde_count == 2) { 10859 paddr = getPaddr(icmd->un.cont64[1].addrHigh, 10860 icmd->un.cont64[1].addrLow); 10861 elsiocb->bpl_dmabuf = lpfc_sli_ringpostbuf_get(phba, 10862 pring, 10863 paddr); 10864 } 10865 } 10866 10867 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); 10868 /* 10869 * The different unsolicited event handlers would tell us 10870 * if they are done with "mp" by setting cmd_dmabuf to NULL. 10871 */ 10872 if (elsiocb->cmd_dmabuf) { 10873 lpfc_in_buf_free(phba, elsiocb->cmd_dmabuf); 10874 elsiocb->cmd_dmabuf = NULL; 10875 } 10876 10877 if (elsiocb->bpl_dmabuf) { 10878 lpfc_in_buf_free(phba, elsiocb->bpl_dmabuf); 10879 elsiocb->bpl_dmabuf = NULL; 10880 } 10881 10882 } 10883 10884 static void 10885 lpfc_start_fdmi(struct lpfc_vport *vport) 10886 { 10887 struct lpfc_nodelist *ndlp; 10888 10889 /* If this is the first time, allocate an ndlp and initialize 10890 * it. Otherwise, make sure the node is enabled and then do the 10891 * login. 10892 */ 10893 ndlp = lpfc_findnode_did(vport, FDMI_DID); 10894 if (!ndlp) { 10895 ndlp = lpfc_nlp_init(vport, FDMI_DID); 10896 if (ndlp) { 10897 ndlp->nlp_type |= NLP_FABRIC; 10898 } else { 10899 return; 10900 } 10901 } 10902 10903 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 10904 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 10905 } 10906 10907 /** 10908 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr 10909 * @phba: pointer to lpfc hba data structure. 10910 * @vport: pointer to a virtual N_Port data structure. 10911 * 10912 * This routine issues a Port Login (PLOGI) to the Name Server with 10913 * State Change Request (SCR) for a @vport. This routine will create an 10914 * ndlp for the Name Server associated to the @vport if such node does 10915 * not already exist. The PLOGI to Name Server is issued by invoking the 10916 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface 10917 * (FDMI) is configured to the @vport, a FDMI node will be created and 10918 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine. 10919 **/ 10920 void 10921 lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) 10922 { 10923 struct lpfc_nodelist *ndlp; 10924 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 10925 10926 /* 10927 * If lpfc_delay_discovery parameter is set and the clean address 10928 * bit is cleared and fc fabric parameters chenged, delay FC NPort 10929 * discovery. 10930 */ 10931 spin_lock_irq(shost->host_lock); 10932 if (vport->fc_flag & FC_DISC_DELAYED) { 10933 spin_unlock_irq(shost->host_lock); 10934 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10935 "3334 Delay fc port discovery for %d secs\n", 10936 phba->fc_ratov); 10937 mod_timer(&vport->delayed_disc_tmo, 10938 jiffies + msecs_to_jiffies(1000 * phba->fc_ratov)); 10939 return; 10940 } 10941 spin_unlock_irq(shost->host_lock); 10942 10943 ndlp = lpfc_findnode_did(vport, NameServer_DID); 10944 if (!ndlp) { 10945 ndlp = lpfc_nlp_init(vport, NameServer_DID); 10946 if (!ndlp) { 10947 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 10948 lpfc_disc_start(vport); 10949 return; 10950 } 10951 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 10952 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10953 "0251 NameServer login: no memory\n"); 10954 return; 10955 } 10956 } 10957 10958 ndlp->nlp_type |= NLP_FABRIC; 10959 10960 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 10961 10962 if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { 10963 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 10964 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10965 "0252 Cannot issue NameServer login\n"); 10966 return; 10967 } 10968 10969 if ((phba->cfg_enable_SmartSAN || 10970 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) && 10971 (vport->load_flag & FC_ALLOW_FDMI)) 10972 lpfc_start_fdmi(vport); 10973 } 10974 10975 /** 10976 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport 10977 * @phba: pointer to lpfc hba data structure. 10978 * @pmb: pointer to the driver internal queue element for mailbox command. 10979 * 10980 * This routine is the completion callback function to register new vport 10981 * mailbox command. If the new vport mailbox command completes successfully, 10982 * the fabric registration login shall be performed on physical port (the 10983 * new vport created is actually a physical port, with VPI 0) or the port 10984 * login to Name Server for State Change Request (SCR) will be performed 10985 * on virtual port (real virtual port, with VPI greater than 0). 10986 **/ 10987 static void 10988 lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 10989 { 10990 struct lpfc_vport *vport = pmb->vport; 10991 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 10992 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; 10993 MAILBOX_t *mb = &pmb->u.mb; 10994 int rc; 10995 10996 spin_lock_irq(shost->host_lock); 10997 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 10998 spin_unlock_irq(shost->host_lock); 10999 11000 if (mb->mbxStatus) { 11001 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11002 "0915 Register VPI failed : Status: x%x" 11003 " upd bit: x%x \n", mb->mbxStatus, 11004 mb->un.varRegVpi.upd); 11005 if (phba->sli_rev == LPFC_SLI_REV4 && 11006 mb->un.varRegVpi.upd) 11007 goto mbox_err_exit ; 11008 11009 switch (mb->mbxStatus) { 11010 case 0x11: /* unsupported feature */ 11011 case 0x9603: /* max_vpi exceeded */ 11012 case 0x9602: /* Link event since CLEAR_LA */ 11013 /* giving up on vport registration */ 11014 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11015 spin_lock_irq(shost->host_lock); 11016 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 11017 spin_unlock_irq(shost->host_lock); 11018 lpfc_can_disctmo(vport); 11019 break; 11020 /* If reg_vpi fail with invalid VPI status, re-init VPI */ 11021 case 0x20: 11022 spin_lock_irq(shost->host_lock); 11023 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 11024 spin_unlock_irq(shost->host_lock); 11025 lpfc_init_vpi(phba, pmb, vport->vpi); 11026 pmb->vport = vport; 11027 pmb->mbox_cmpl = lpfc_init_vpi_cmpl; 11028 rc = lpfc_sli_issue_mbox(phba, pmb, 11029 MBX_NOWAIT); 11030 if (rc == MBX_NOT_FINISHED) { 11031 lpfc_printf_vlog(vport, KERN_ERR, 11032 LOG_TRACE_EVENT, 11033 "2732 Failed to issue INIT_VPI" 11034 " mailbox command\n"); 11035 } else { 11036 lpfc_nlp_put(ndlp); 11037 return; 11038 } 11039 fallthrough; 11040 default: 11041 /* Try to recover from this error */ 11042 if (phba->sli_rev == LPFC_SLI_REV4) 11043 lpfc_sli4_unreg_all_rpis(vport); 11044 lpfc_mbx_unreg_vpi(vport); 11045 spin_lock_irq(shost->host_lock); 11046 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 11047 spin_unlock_irq(shost->host_lock); 11048 if (mb->mbxStatus == MBX_NOT_FINISHED) 11049 break; 11050 if ((vport->port_type == LPFC_PHYSICAL_PORT) && 11051 !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) { 11052 if (phba->sli_rev == LPFC_SLI_REV4) 11053 lpfc_issue_init_vfi(vport); 11054 else 11055 lpfc_initial_flogi(vport); 11056 } else { 11057 lpfc_initial_fdisc(vport); 11058 } 11059 break; 11060 } 11061 } else { 11062 spin_lock_irq(shost->host_lock); 11063 vport->vpi_state |= LPFC_VPI_REGISTERED; 11064 spin_unlock_irq(shost->host_lock); 11065 if (vport == phba->pport) { 11066 if (phba->sli_rev < LPFC_SLI_REV4) 11067 lpfc_issue_fabric_reglogin(vport); 11068 else { 11069 /* 11070 * If the physical port is instantiated using 11071 * FDISC, do not start vport discovery. 11072 */ 11073 if (vport->port_state != LPFC_FDISC) 11074 lpfc_start_fdiscs(phba); 11075 lpfc_do_scr_ns_plogi(phba, vport); 11076 } 11077 } else { 11078 lpfc_do_scr_ns_plogi(phba, vport); 11079 } 11080 } 11081 mbox_err_exit: 11082 /* Now, we decrement the ndlp reference count held for this 11083 * callback function 11084 */ 11085 lpfc_nlp_put(ndlp); 11086 11087 mempool_free(pmb, phba->mbox_mem_pool); 11088 return; 11089 } 11090 11091 /** 11092 * lpfc_register_new_vport - Register a new vport with a HBA 11093 * @phba: pointer to lpfc hba data structure. 11094 * @vport: pointer to a host virtual N_Port data structure. 11095 * @ndlp: pointer to a node-list data structure. 11096 * 11097 * This routine registers the @vport as a new virtual port with a HBA. 11098 * It is done through a registering vpi mailbox command. 11099 **/ 11100 void 11101 lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, 11102 struct lpfc_nodelist *ndlp) 11103 { 11104 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 11105 LPFC_MBOXQ_t *mbox; 11106 11107 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 11108 if (mbox) { 11109 lpfc_reg_vpi(vport, mbox); 11110 mbox->vport = vport; 11111 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 11112 if (!mbox->ctx_ndlp) { 11113 mempool_free(mbox, phba->mbox_mem_pool); 11114 goto mbox_err_exit; 11115 } 11116 11117 mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; 11118 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 11119 == MBX_NOT_FINISHED) { 11120 /* mailbox command not success, decrement ndlp 11121 * reference count for this command 11122 */ 11123 lpfc_nlp_put(ndlp); 11124 mempool_free(mbox, phba->mbox_mem_pool); 11125 11126 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11127 "0253 Register VPI: Can't send mbox\n"); 11128 goto mbox_err_exit; 11129 } 11130 } else { 11131 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11132 "0254 Register VPI: no memory\n"); 11133 goto mbox_err_exit; 11134 } 11135 return; 11136 11137 mbox_err_exit: 11138 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11139 spin_lock_irq(shost->host_lock); 11140 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 11141 spin_unlock_irq(shost->host_lock); 11142 return; 11143 } 11144 11145 /** 11146 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer 11147 * @phba: pointer to lpfc hba data structure. 11148 * 11149 * This routine cancels the retry delay timers to all the vports. 11150 **/ 11151 void 11152 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba) 11153 { 11154 struct lpfc_vport **vports; 11155 struct lpfc_nodelist *ndlp; 11156 uint32_t link_state; 11157 int i; 11158 11159 /* Treat this failure as linkdown for all vports */ 11160 link_state = phba->link_state; 11161 lpfc_linkdown(phba); 11162 phba->link_state = link_state; 11163 11164 vports = lpfc_create_vport_work_array(phba); 11165 11166 if (vports) { 11167 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 11168 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 11169 if (ndlp) 11170 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 11171 lpfc_els_flush_cmd(vports[i]); 11172 } 11173 lpfc_destroy_vport_work_array(phba, vports); 11174 } 11175 } 11176 11177 /** 11178 * lpfc_retry_pport_discovery - Start timer to retry FLOGI. 11179 * @phba: pointer to lpfc hba data structure. 11180 * 11181 * This routine abort all pending discovery commands and 11182 * start a timer to retry FLOGI for the physical port 11183 * discovery. 11184 **/ 11185 void 11186 lpfc_retry_pport_discovery(struct lpfc_hba *phba) 11187 { 11188 struct lpfc_nodelist *ndlp; 11189 11190 /* Cancel the all vports retry delay retry timers */ 11191 lpfc_cancel_all_vport_retry_delay_timer(phba); 11192 11193 /* If fabric require FLOGI, then re-instantiate physical login */ 11194 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 11195 if (!ndlp) 11196 return; 11197 11198 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 11199 spin_lock_irq(&ndlp->lock); 11200 ndlp->nlp_flag |= NLP_DELAY_TMO; 11201 spin_unlock_irq(&ndlp->lock); 11202 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI; 11203 phba->pport->port_state = LPFC_FLOGI; 11204 return; 11205 } 11206 11207 /** 11208 * lpfc_fabric_login_reqd - Check if FLOGI required. 11209 * @phba: pointer to lpfc hba data structure. 11210 * @cmdiocb: pointer to FDISC command iocb. 11211 * @rspiocb: pointer to FDISC response iocb. 11212 * 11213 * This routine checks if a FLOGI is reguired for FDISC 11214 * to succeed. 11215 **/ 11216 static int 11217 lpfc_fabric_login_reqd(struct lpfc_hba *phba, 11218 struct lpfc_iocbq *cmdiocb, 11219 struct lpfc_iocbq *rspiocb) 11220 { 11221 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 11222 u32 ulp_word4 = get_job_word4(phba, rspiocb); 11223 11224 if (ulp_status != IOSTAT_FABRIC_RJT || 11225 ulp_word4 != RJT_LOGIN_REQUIRED) 11226 return 0; 11227 else 11228 return 1; 11229 } 11230 11231 /** 11232 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command 11233 * @phba: pointer to lpfc hba data structure. 11234 * @cmdiocb: pointer to lpfc command iocb data structure. 11235 * @rspiocb: pointer to lpfc response iocb data structure. 11236 * 11237 * This routine is the completion callback function to a Fabric Discover 11238 * (FDISC) ELS command. Since all the FDISC ELS commands are issued 11239 * single threaded, each FDISC completion callback function will reset 11240 * the discovery timer for all vports such that the timers will not get 11241 * unnecessary timeout. The function checks the FDISC IOCB status. If error 11242 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the 11243 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID 11244 * assigned to the vport has been changed with the completion of the FDISC 11245 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index) 11246 * are unregistered from the HBA, and then the lpfc_register_new_vport() 11247 * routine is invoked to register new vport with the HBA. Otherwise, the 11248 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name 11249 * Server for State Change Request (SCR). 11250 **/ 11251 static void 11252 lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 11253 struct lpfc_iocbq *rspiocb) 11254 { 11255 struct lpfc_vport *vport = cmdiocb->vport; 11256 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 11257 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 11258 struct lpfc_nodelist *np; 11259 struct lpfc_nodelist *next_np; 11260 struct lpfc_iocbq *piocb; 11261 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf, *prsp; 11262 struct serv_parm *sp; 11263 uint8_t fabric_param_changed; 11264 u32 ulp_status, ulp_word4; 11265 11266 ulp_status = get_job_ulpstatus(phba, rspiocb); 11267 ulp_word4 = get_job_word4(phba, rspiocb); 11268 11269 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 11270 "0123 FDISC completes. x%x/x%x prevDID: x%x\n", 11271 ulp_status, ulp_word4, 11272 vport->fc_prevDID); 11273 /* Since all FDISCs are being single threaded, we 11274 * must reset the discovery timer for ALL vports 11275 * waiting to send FDISC when one completes. 11276 */ 11277 list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { 11278 lpfc_set_disctmo(piocb->vport); 11279 } 11280 11281 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11282 "FDISC cmpl: status:x%x/x%x prevdid:x%x", 11283 ulp_status, ulp_word4, vport->fc_prevDID); 11284 11285 if (ulp_status) { 11286 11287 if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) { 11288 lpfc_retry_pport_discovery(phba); 11289 goto out; 11290 } 11291 11292 /* Check for retry */ 11293 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) 11294 goto out; 11295 /* FDISC failed */ 11296 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11297 "0126 FDISC failed. (x%x/x%x)\n", 11298 ulp_status, ulp_word4); 11299 goto fdisc_failed; 11300 } 11301 11302 lpfc_check_nlp_post_devloss(vport, ndlp); 11303 11304 spin_lock_irq(shost->host_lock); 11305 vport->fc_flag &= ~FC_VPORT_CVL_RCVD; 11306 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; 11307 vport->fc_flag |= FC_FABRIC; 11308 if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP) 11309 vport->fc_flag |= FC_PUBLIC_LOOP; 11310 spin_unlock_irq(shost->host_lock); 11311 11312 vport->fc_myDID = ulp_word4 & Mask_DID; 11313 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); 11314 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 11315 if (!prsp) 11316 goto out; 11317 sp = prsp->virt + sizeof(uint32_t); 11318 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); 11319 memcpy(&vport->fabric_portname, &sp->portName, 11320 sizeof(struct lpfc_name)); 11321 memcpy(&vport->fabric_nodename, &sp->nodeName, 11322 sizeof(struct lpfc_name)); 11323 if (fabric_param_changed && 11324 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { 11325 /* If our NportID changed, we need to ensure all 11326 * remaining NPORTs get unreg_login'ed so we can 11327 * issue unreg_vpi. 11328 */ 11329 list_for_each_entry_safe(np, next_np, 11330 &vport->fc_nodes, nlp_listp) { 11331 if ((np->nlp_state != NLP_STE_NPR_NODE) || 11332 !(np->nlp_flag & NLP_NPR_ADISC)) 11333 continue; 11334 spin_lock_irq(&ndlp->lock); 11335 np->nlp_flag &= ~NLP_NPR_ADISC; 11336 spin_unlock_irq(&ndlp->lock); 11337 lpfc_unreg_rpi(vport, np); 11338 } 11339 lpfc_cleanup_pending_mbox(vport); 11340 11341 if (phba->sli_rev == LPFC_SLI_REV4) 11342 lpfc_sli4_unreg_all_rpis(vport); 11343 11344 lpfc_mbx_unreg_vpi(vport); 11345 spin_lock_irq(shost->host_lock); 11346 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 11347 if (phba->sli_rev == LPFC_SLI_REV4) 11348 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 11349 else 11350 vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG; 11351 spin_unlock_irq(shost->host_lock); 11352 } else if ((phba->sli_rev == LPFC_SLI_REV4) && 11353 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { 11354 /* 11355 * Driver needs to re-reg VPI in order for f/w 11356 * to update the MAC address. 11357 */ 11358 lpfc_register_new_vport(phba, vport, ndlp); 11359 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 11360 goto out; 11361 } 11362 11363 if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI) 11364 lpfc_issue_init_vpi(vport); 11365 else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) 11366 lpfc_register_new_vport(phba, vport, ndlp); 11367 else 11368 lpfc_do_scr_ns_plogi(phba, vport); 11369 11370 /* The FDISC completed successfully. Move the fabric ndlp to 11371 * UNMAPPED state and register with the transport. 11372 */ 11373 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 11374 goto out; 11375 11376 fdisc_failed: 11377 if (vport->fc_vport && 11378 (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS)) 11379 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11380 /* Cancel discovery timer */ 11381 lpfc_can_disctmo(vport); 11382 out: 11383 lpfc_els_free_iocb(phba, cmdiocb); 11384 lpfc_nlp_put(ndlp); 11385 } 11386 11387 /** 11388 * lpfc_issue_els_fdisc - Issue a fdisc iocb command 11389 * @vport: pointer to a virtual N_Port data structure. 11390 * @ndlp: pointer to a node-list data structure. 11391 * @retry: number of retries to the command IOCB. 11392 * 11393 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to 11394 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb() 11395 * routine to issue the IOCB, which makes sure only one outstanding fabric 11396 * IOCB will be sent off HBA at any given time. 11397 * 11398 * Note that the ndlp reference count will be incremented by 1 for holding the 11399 * ndlp and the reference to ndlp will be stored into the ndlp field of 11400 * the IOCB for the completion callback function to the FDISC ELS command. 11401 * 11402 * Return code 11403 * 0 - Successfully issued fdisc iocb command 11404 * 1 - Failed to issue fdisc iocb command 11405 **/ 11406 static int 11407 lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 11408 uint8_t retry) 11409 { 11410 struct lpfc_hba *phba = vport->phba; 11411 IOCB_t *icmd; 11412 union lpfc_wqe128 *wqe = NULL; 11413 struct lpfc_iocbq *elsiocb; 11414 struct serv_parm *sp; 11415 uint8_t *pcmd; 11416 uint16_t cmdsize; 11417 int did = ndlp->nlp_DID; 11418 int rc; 11419 11420 vport->port_state = LPFC_FDISC; 11421 vport->fc_myDID = 0; 11422 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); 11423 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, 11424 ELS_CMD_FDISC); 11425 if (!elsiocb) { 11426 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11427 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11428 "0255 Issue FDISC: no IOCB\n"); 11429 return 1; 11430 } 11431 11432 if (phba->sli_rev == LPFC_SLI_REV4) { 11433 wqe = &elsiocb->wqe; 11434 bf_set(els_req64_sid, &wqe->els_req, 0); 11435 bf_set(els_req64_sp, &wqe->els_req, 1); 11436 } else { 11437 icmd = &elsiocb->iocb; 11438 icmd->un.elsreq64.myID = 0; 11439 icmd->un.elsreq64.fl = 1; 11440 icmd->ulpCt_h = 1; 11441 icmd->ulpCt_l = 0; 11442 } 11443 11444 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 11445 *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; 11446 pcmd += sizeof(uint32_t); /* CSP Word 1 */ 11447 memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); 11448 sp = (struct serv_parm *) pcmd; 11449 /* Setup CSPs accordingly for Fabric */ 11450 sp->cmn.e_d_tov = 0; 11451 sp->cmn.w2.r_a_tov = 0; 11452 sp->cmn.virtual_fabric_support = 0; 11453 sp->cls1.classValid = 0; 11454 sp->cls2.seqDelivery = 1; 11455 sp->cls3.seqDelivery = 1; 11456 11457 pcmd += sizeof(uint32_t); /* CSP Word 2 */ 11458 pcmd += sizeof(uint32_t); /* CSP Word 3 */ 11459 pcmd += sizeof(uint32_t); /* CSP Word 4 */ 11460 pcmd += sizeof(uint32_t); /* Port Name */ 11461 memcpy(pcmd, &vport->fc_portname, 8); 11462 pcmd += sizeof(uint32_t); /* Node Name */ 11463 pcmd += sizeof(uint32_t); /* Node Name */ 11464 memcpy(pcmd, &vport->fc_nodename, 8); 11465 sp->cmn.valid_vendor_ver_level = 0; 11466 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion)); 11467 lpfc_set_disctmo(vport); 11468 11469 phba->fc_stat.elsXmitFDISC++; 11470 elsiocb->cmd_cmpl = lpfc_cmpl_els_fdisc; 11471 11472 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11473 "Issue FDISC: did:x%x", 11474 did, 0, 0); 11475 11476 elsiocb->ndlp = lpfc_nlp_get(ndlp); 11477 if (!elsiocb->ndlp) 11478 goto err_out; 11479 11480 rc = lpfc_issue_fabric_iocb(phba, elsiocb); 11481 if (rc == IOCB_ERROR) { 11482 lpfc_nlp_put(ndlp); 11483 goto err_out; 11484 } 11485 11486 lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); 11487 return 0; 11488 11489 err_out: 11490 lpfc_els_free_iocb(phba, elsiocb); 11491 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11492 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11493 "0256 Issue FDISC: Cannot send IOCB\n"); 11494 return 1; 11495 } 11496 11497 /** 11498 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo 11499 * @phba: pointer to lpfc hba data structure. 11500 * @cmdiocb: pointer to lpfc command iocb data structure. 11501 * @rspiocb: pointer to lpfc response iocb data structure. 11502 * 11503 * This routine is the completion callback function to the issuing of a LOGO 11504 * ELS command off a vport. It frees the command IOCB and then decrement the 11505 * reference count held on ndlp for this completion function, indicating that 11506 * the reference to the ndlp is no long needed. Note that the 11507 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this 11508 * callback function and an additional explicit ndlp reference decrementation 11509 * will trigger the actual release of the ndlp. 11510 **/ 11511 static void 11512 lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 11513 struct lpfc_iocbq *rspiocb) 11514 { 11515 struct lpfc_vport *vport = cmdiocb->vport; 11516 IOCB_t *irsp; 11517 struct lpfc_nodelist *ndlp; 11518 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 11519 u32 ulp_status, ulp_word4, did, tmo; 11520 11521 ndlp = cmdiocb->ndlp; 11522 11523 ulp_status = get_job_ulpstatus(phba, rspiocb); 11524 ulp_word4 = get_job_word4(phba, rspiocb); 11525 11526 if (phba->sli_rev == LPFC_SLI_REV4) { 11527 did = get_job_els_rsp64_did(phba, cmdiocb); 11528 tmo = get_wqe_tmo(cmdiocb); 11529 } else { 11530 irsp = &rspiocb->iocb; 11531 did = get_job_els_rsp64_did(phba, rspiocb); 11532 tmo = irsp->ulpTimeout; 11533 } 11534 11535 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11536 "LOGO npiv cmpl: status:x%x/x%x did:x%x", 11537 ulp_status, ulp_word4, did); 11538 11539 /* NPIV LOGO completes to NPort <nlp_DID> */ 11540 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 11541 "2928 NPIV LOGO completes to NPort x%x " 11542 "Data: x%x x%x x%x x%x x%x x%x x%x\n", 11543 ndlp->nlp_DID, ulp_status, ulp_word4, 11544 tmo, vport->num_disc_nodes, 11545 kref_read(&ndlp->kref), ndlp->nlp_flag, 11546 ndlp->fc4_xpt_flags); 11547 11548 if (ulp_status == IOSTAT_SUCCESS) { 11549 spin_lock_irq(shost->host_lock); 11550 vport->fc_flag &= ~FC_NDISC_ACTIVE; 11551 vport->fc_flag &= ~FC_FABRIC; 11552 spin_unlock_irq(shost->host_lock); 11553 lpfc_can_disctmo(vport); 11554 } 11555 11556 if (ndlp->save_flags & NLP_WAIT_FOR_LOGO) { 11557 /* Wake up lpfc_vport_delete if waiting...*/ 11558 if (ndlp->logo_waitq) 11559 wake_up(ndlp->logo_waitq); 11560 spin_lock_irq(&ndlp->lock); 11561 ndlp->nlp_flag &= ~(NLP_ISSUE_LOGO | NLP_LOGO_SND); 11562 ndlp->save_flags &= ~NLP_WAIT_FOR_LOGO; 11563 spin_unlock_irq(&ndlp->lock); 11564 } 11565 11566 /* Safe to release resources now. */ 11567 lpfc_els_free_iocb(phba, cmdiocb); 11568 lpfc_nlp_put(ndlp); 11569 } 11570 11571 /** 11572 * lpfc_issue_els_npiv_logo - Issue a logo off a vport 11573 * @vport: pointer to a virtual N_Port data structure. 11574 * @ndlp: pointer to a node-list data structure. 11575 * 11576 * This routine issues a LOGO ELS command to an @ndlp off a @vport. 11577 * 11578 * Note that the ndlp reference count will be incremented by 1 for holding the 11579 * ndlp and the reference to ndlp will be stored into the ndlp field of 11580 * the IOCB for the completion callback function to the LOGO ELS command. 11581 * 11582 * Return codes 11583 * 0 - Successfully issued logo off the @vport 11584 * 1 - Failed to issue logo off the @vport 11585 **/ 11586 int 11587 lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 11588 { 11589 int rc = 0; 11590 struct lpfc_hba *phba = vport->phba; 11591 struct lpfc_iocbq *elsiocb; 11592 uint8_t *pcmd; 11593 uint16_t cmdsize; 11594 11595 cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); 11596 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, 11597 ELS_CMD_LOGO); 11598 if (!elsiocb) 11599 return 1; 11600 11601 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 11602 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; 11603 pcmd += sizeof(uint32_t); 11604 11605 /* Fill in LOGO payload */ 11606 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); 11607 pcmd += sizeof(uint32_t); 11608 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); 11609 11610 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11611 "Issue LOGO npiv did:x%x flg:x%x", 11612 ndlp->nlp_DID, ndlp->nlp_flag, 0); 11613 11614 elsiocb->cmd_cmpl = lpfc_cmpl_els_npiv_logo; 11615 spin_lock_irq(&ndlp->lock); 11616 ndlp->nlp_flag |= NLP_LOGO_SND; 11617 spin_unlock_irq(&ndlp->lock); 11618 elsiocb->ndlp = lpfc_nlp_get(ndlp); 11619 if (!elsiocb->ndlp) { 11620 lpfc_els_free_iocb(phba, elsiocb); 11621 goto err; 11622 } 11623 11624 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 11625 if (rc == IOCB_ERROR) { 11626 lpfc_els_free_iocb(phba, elsiocb); 11627 lpfc_nlp_put(ndlp); 11628 goto err; 11629 } 11630 return 0; 11631 11632 err: 11633 spin_lock_irq(&ndlp->lock); 11634 ndlp->nlp_flag &= ~NLP_LOGO_SND; 11635 spin_unlock_irq(&ndlp->lock); 11636 return 1; 11637 } 11638 11639 /** 11640 * lpfc_fabric_block_timeout - Handler function to the fabric block timer 11641 * @t: timer context used to obtain the lpfc hba. 11642 * 11643 * This routine is invoked by the fabric iocb block timer after 11644 * timeout. It posts the fabric iocb block timeout event by setting the 11645 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes 11646 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for 11647 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the 11648 * posted event WORKER_FABRIC_BLOCK_TMO. 11649 **/ 11650 void 11651 lpfc_fabric_block_timeout(struct timer_list *t) 11652 { 11653 struct lpfc_hba *phba = from_timer(phba, t, fabric_block_timer); 11654 unsigned long iflags; 11655 uint32_t tmo_posted; 11656 11657 spin_lock_irqsave(&phba->pport->work_port_lock, iflags); 11658 tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; 11659 if (!tmo_posted) 11660 phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; 11661 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); 11662 11663 if (!tmo_posted) 11664 lpfc_worker_wake_up(phba); 11665 return; 11666 } 11667 11668 /** 11669 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list 11670 * @phba: pointer to lpfc hba data structure. 11671 * 11672 * This routine issues one fabric iocb from the driver internal list to 11673 * the HBA. It first checks whether it's ready to issue one fabric iocb to 11674 * the HBA (whether there is no outstanding fabric iocb). If so, it shall 11675 * remove one pending fabric iocb from the driver internal list and invokes 11676 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA. 11677 **/ 11678 static void 11679 lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) 11680 { 11681 struct lpfc_iocbq *iocb; 11682 unsigned long iflags; 11683 int ret; 11684 11685 repeat: 11686 iocb = NULL; 11687 spin_lock_irqsave(&phba->hbalock, iflags); 11688 /* Post any pending iocb to the SLI layer */ 11689 if (atomic_read(&phba->fabric_iocb_count) == 0) { 11690 list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), 11691 list); 11692 if (iocb) 11693 /* Increment fabric iocb count to hold the position */ 11694 atomic_inc(&phba->fabric_iocb_count); 11695 } 11696 spin_unlock_irqrestore(&phba->hbalock, iflags); 11697 if (iocb) { 11698 iocb->fabric_cmd_cmpl = iocb->cmd_cmpl; 11699 iocb->cmd_cmpl = lpfc_cmpl_fabric_iocb; 11700 iocb->cmd_flag |= LPFC_IO_FABRIC; 11701 11702 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, 11703 "Fabric sched1: ste:x%x", 11704 iocb->vport->port_state, 0, 0); 11705 11706 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); 11707 11708 if (ret == IOCB_ERROR) { 11709 iocb->cmd_cmpl = iocb->fabric_cmd_cmpl; 11710 iocb->fabric_cmd_cmpl = NULL; 11711 iocb->cmd_flag &= ~LPFC_IO_FABRIC; 11712 set_job_ulpstatus(iocb, IOSTAT_LOCAL_REJECT); 11713 iocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED; 11714 iocb->cmd_cmpl(phba, iocb, iocb); 11715 11716 atomic_dec(&phba->fabric_iocb_count); 11717 goto repeat; 11718 } 11719 } 11720 } 11721 11722 /** 11723 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command 11724 * @phba: pointer to lpfc hba data structure. 11725 * 11726 * This routine unblocks the issuing fabric iocb command. The function 11727 * will clear the fabric iocb block bit and then invoke the routine 11728 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb 11729 * from the driver internal fabric iocb list. 11730 **/ 11731 void 11732 lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) 11733 { 11734 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 11735 11736 lpfc_resume_fabric_iocbs(phba); 11737 return; 11738 } 11739 11740 /** 11741 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command 11742 * @phba: pointer to lpfc hba data structure. 11743 * 11744 * This routine blocks the issuing fabric iocb for a specified amount of 11745 * time (currently 100 ms). This is done by set the fabric iocb block bit 11746 * and set up a timeout timer for 100ms. When the block bit is set, no more 11747 * fabric iocb will be issued out of the HBA. 11748 **/ 11749 static void 11750 lpfc_block_fabric_iocbs(struct lpfc_hba *phba) 11751 { 11752 int blocked; 11753 11754 blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 11755 /* Start a timer to unblock fabric iocbs after 100ms */ 11756 if (!blocked) 11757 mod_timer(&phba->fabric_block_timer, 11758 jiffies + msecs_to_jiffies(100)); 11759 11760 return; 11761 } 11762 11763 /** 11764 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb 11765 * @phba: pointer to lpfc hba data structure. 11766 * @cmdiocb: pointer to lpfc command iocb data structure. 11767 * @rspiocb: pointer to lpfc response iocb data structure. 11768 * 11769 * This routine is the callback function that is put to the fabric iocb's 11770 * callback function pointer (iocb->cmd_cmpl). The original iocb's callback 11771 * function pointer has been stored in iocb->fabric_cmd_cmpl. This callback 11772 * function first restores and invokes the original iocb's callback function 11773 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next 11774 * fabric bound iocb from the driver internal fabric iocb list onto the wire. 11775 **/ 11776 static void 11777 lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 11778 struct lpfc_iocbq *rspiocb) 11779 { 11780 struct ls_rjt stat; 11781 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 11782 u32 ulp_word4 = get_job_word4(phba, rspiocb); 11783 11784 WARN_ON((cmdiocb->cmd_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC); 11785 11786 switch (ulp_status) { 11787 case IOSTAT_NPORT_RJT: 11788 case IOSTAT_FABRIC_RJT: 11789 if (ulp_word4 & RJT_UNAVAIL_TEMP) 11790 lpfc_block_fabric_iocbs(phba); 11791 break; 11792 11793 case IOSTAT_NPORT_BSY: 11794 case IOSTAT_FABRIC_BSY: 11795 lpfc_block_fabric_iocbs(phba); 11796 break; 11797 11798 case IOSTAT_LS_RJT: 11799 stat.un.ls_rjt_error_be = 11800 cpu_to_be32(ulp_word4); 11801 if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || 11802 (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) 11803 lpfc_block_fabric_iocbs(phba); 11804 break; 11805 } 11806 11807 BUG_ON(atomic_read(&phba->fabric_iocb_count) == 0); 11808 11809 cmdiocb->cmd_cmpl = cmdiocb->fabric_cmd_cmpl; 11810 cmdiocb->fabric_cmd_cmpl = NULL; 11811 cmdiocb->cmd_flag &= ~LPFC_IO_FABRIC; 11812 cmdiocb->cmd_cmpl(phba, cmdiocb, rspiocb); 11813 11814 atomic_dec(&phba->fabric_iocb_count); 11815 if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { 11816 /* Post any pending iocbs to HBA */ 11817 lpfc_resume_fabric_iocbs(phba); 11818 } 11819 } 11820 11821 /** 11822 * lpfc_issue_fabric_iocb - Issue a fabric iocb command 11823 * @phba: pointer to lpfc hba data structure. 11824 * @iocb: pointer to lpfc command iocb data structure. 11825 * 11826 * This routine is used as the top-level API for issuing a fabric iocb command 11827 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver 11828 * function makes sure that only one fabric bound iocb will be outstanding at 11829 * any given time. As such, this function will first check to see whether there 11830 * is already an outstanding fabric iocb on the wire. If so, it will put the 11831 * newly issued iocb onto the driver internal fabric iocb list, waiting to be 11832 * issued later. Otherwise, it will issue the iocb on the wire and update the 11833 * fabric iocb count it indicate that there is one fabric iocb on the wire. 11834 * 11835 * Note, this implementation has a potential sending out fabric IOCBs out of 11836 * order. The problem is caused by the construction of the "ready" boolen does 11837 * not include the condition that the internal fabric IOCB list is empty. As 11838 * such, it is possible a fabric IOCB issued by this routine might be "jump" 11839 * ahead of the fabric IOCBs in the internal list. 11840 * 11841 * Return code 11842 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully 11843 * IOCB_ERROR - failed to issue fabric iocb 11844 **/ 11845 static int 11846 lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) 11847 { 11848 unsigned long iflags; 11849 int ready; 11850 int ret; 11851 11852 BUG_ON(atomic_read(&phba->fabric_iocb_count) > 1); 11853 11854 spin_lock_irqsave(&phba->hbalock, iflags); 11855 ready = atomic_read(&phba->fabric_iocb_count) == 0 && 11856 !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 11857 11858 if (ready) 11859 /* Increment fabric iocb count to hold the position */ 11860 atomic_inc(&phba->fabric_iocb_count); 11861 spin_unlock_irqrestore(&phba->hbalock, iflags); 11862 if (ready) { 11863 iocb->fabric_cmd_cmpl = iocb->cmd_cmpl; 11864 iocb->cmd_cmpl = lpfc_cmpl_fabric_iocb; 11865 iocb->cmd_flag |= LPFC_IO_FABRIC; 11866 11867 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, 11868 "Fabric sched2: ste:x%x", 11869 iocb->vport->port_state, 0, 0); 11870 11871 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); 11872 11873 if (ret == IOCB_ERROR) { 11874 iocb->cmd_cmpl = iocb->fabric_cmd_cmpl; 11875 iocb->fabric_cmd_cmpl = NULL; 11876 iocb->cmd_flag &= ~LPFC_IO_FABRIC; 11877 atomic_dec(&phba->fabric_iocb_count); 11878 } 11879 } else { 11880 spin_lock_irqsave(&phba->hbalock, iflags); 11881 list_add_tail(&iocb->list, &phba->fabric_iocb_list); 11882 spin_unlock_irqrestore(&phba->hbalock, iflags); 11883 ret = IOCB_SUCCESS; 11884 } 11885 return ret; 11886 } 11887 11888 /** 11889 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list 11890 * @vport: pointer to a virtual N_Port data structure. 11891 * 11892 * This routine aborts all the IOCBs associated with a @vport from the 11893 * driver internal fabric IOCB list. The list contains fabric IOCBs to be 11894 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB 11895 * list, removes each IOCB associated with the @vport off the list, set the 11896 * status field to IOSTAT_LOCAL_REJECT, and invokes the callback function 11897 * associated with the IOCB. 11898 **/ 11899 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) 11900 { 11901 LIST_HEAD(completions); 11902 struct lpfc_hba *phba = vport->phba; 11903 struct lpfc_iocbq *tmp_iocb, *piocb; 11904 11905 spin_lock_irq(&phba->hbalock); 11906 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, 11907 list) { 11908 11909 if (piocb->vport != vport) 11910 continue; 11911 11912 list_move_tail(&piocb->list, &completions); 11913 } 11914 spin_unlock_irq(&phba->hbalock); 11915 11916 /* Cancel all the IOCBs from the completions list */ 11917 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 11918 IOERR_SLI_ABORTED); 11919 } 11920 11921 /** 11922 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list 11923 * @ndlp: pointer to a node-list data structure. 11924 * 11925 * This routine aborts all the IOCBs associated with an @ndlp from the 11926 * driver internal fabric IOCB list. The list contains fabric IOCBs to be 11927 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB 11928 * list, removes each IOCB associated with the @ndlp off the list, set the 11929 * status field to IOSTAT_LOCAL_REJECT, and invokes the callback function 11930 * associated with the IOCB. 11931 **/ 11932 void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) 11933 { 11934 LIST_HEAD(completions); 11935 struct lpfc_hba *phba = ndlp->phba; 11936 struct lpfc_iocbq *tmp_iocb, *piocb; 11937 struct lpfc_sli_ring *pring; 11938 11939 pring = lpfc_phba_elsring(phba); 11940 11941 if (unlikely(!pring)) 11942 return; 11943 11944 spin_lock_irq(&phba->hbalock); 11945 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, 11946 list) { 11947 if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { 11948 11949 list_move_tail(&piocb->list, &completions); 11950 } 11951 } 11952 spin_unlock_irq(&phba->hbalock); 11953 11954 /* Cancel all the IOCBs from the completions list */ 11955 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 11956 IOERR_SLI_ABORTED); 11957 } 11958 11959 /** 11960 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list 11961 * @phba: pointer to lpfc hba data structure. 11962 * 11963 * This routine aborts all the IOCBs currently on the driver internal 11964 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS 11965 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB 11966 * list, removes IOCBs off the list, set the status field to 11967 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with 11968 * the IOCB. 11969 **/ 11970 void lpfc_fabric_abort_hba(struct lpfc_hba *phba) 11971 { 11972 LIST_HEAD(completions); 11973 11974 spin_lock_irq(&phba->hbalock); 11975 list_splice_init(&phba->fabric_iocb_list, &completions); 11976 spin_unlock_irq(&phba->hbalock); 11977 11978 /* Cancel all the IOCBs from the completions list */ 11979 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 11980 IOERR_SLI_ABORTED); 11981 } 11982 11983 /** 11984 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport 11985 * @vport: pointer to lpfc vport data structure. 11986 * 11987 * This routine is invoked by the vport cleanup for deletions and the cleanup 11988 * for an ndlp on removal. 11989 **/ 11990 void 11991 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport) 11992 { 11993 struct lpfc_hba *phba = vport->phba; 11994 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 11995 struct lpfc_nodelist *ndlp = NULL; 11996 unsigned long iflag = 0; 11997 11998 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock, iflag); 11999 list_for_each_entry_safe(sglq_entry, sglq_next, 12000 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { 12001 if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport) { 12002 lpfc_nlp_put(sglq_entry->ndlp); 12003 ndlp = sglq_entry->ndlp; 12004 sglq_entry->ndlp = NULL; 12005 12006 /* If the xri on the abts_els_sgl list is for the Fport 12007 * node and the vport is unloading, the xri aborted wcqe 12008 * likely isn't coming back. Just release the sgl. 12009 */ 12010 if ((vport->load_flag & FC_UNLOADING) && 12011 ndlp->nlp_DID == Fabric_DID) { 12012 list_del(&sglq_entry->list); 12013 sglq_entry->state = SGL_FREED; 12014 list_add_tail(&sglq_entry->list, 12015 &phba->sli4_hba.lpfc_els_sgl_list); 12016 } 12017 } 12018 } 12019 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, iflag); 12020 return; 12021 } 12022 12023 /** 12024 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort 12025 * @phba: pointer to lpfc hba data structure. 12026 * @axri: pointer to the els xri abort wcqe structure. 12027 * 12028 * This routine is invoked by the worker thread to process a SLI4 slow-path 12029 * ELS aborted xri. 12030 **/ 12031 void 12032 lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba, 12033 struct sli4_wcqe_xri_aborted *axri) 12034 { 12035 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); 12036 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); 12037 uint16_t lxri = 0; 12038 12039 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 12040 unsigned long iflag = 0; 12041 struct lpfc_nodelist *ndlp; 12042 struct lpfc_sli_ring *pring; 12043 12044 pring = lpfc_phba_elsring(phba); 12045 12046 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock, iflag); 12047 list_for_each_entry_safe(sglq_entry, sglq_next, 12048 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { 12049 if (sglq_entry->sli4_xritag == xri) { 12050 list_del(&sglq_entry->list); 12051 ndlp = sglq_entry->ndlp; 12052 sglq_entry->ndlp = NULL; 12053 list_add_tail(&sglq_entry->list, 12054 &phba->sli4_hba.lpfc_els_sgl_list); 12055 sglq_entry->state = SGL_FREED; 12056 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, 12057 iflag); 12058 12059 if (ndlp) { 12060 lpfc_set_rrq_active(phba, ndlp, 12061 sglq_entry->sli4_lxritag, 12062 rxid, 1); 12063 lpfc_nlp_put(ndlp); 12064 } 12065 12066 /* Check if TXQ queue needs to be serviced */ 12067 if (pring && !list_empty(&pring->txq)) 12068 lpfc_worker_wake_up(phba); 12069 return; 12070 } 12071 } 12072 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, iflag); 12073 lxri = lpfc_sli4_xri_inrange(phba, xri); 12074 if (lxri == NO_XRI) 12075 return; 12076 12077 spin_lock_irqsave(&phba->hbalock, iflag); 12078 sglq_entry = __lpfc_get_active_sglq(phba, lxri); 12079 if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) { 12080 spin_unlock_irqrestore(&phba->hbalock, iflag); 12081 return; 12082 } 12083 sglq_entry->state = SGL_XRI_ABORTED; 12084 spin_unlock_irqrestore(&phba->hbalock, iflag); 12085 return; 12086 } 12087 12088 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req. 12089 * @vport: pointer to virtual port object. 12090 * @ndlp: nodelist pointer for the impacted node. 12091 * 12092 * The driver calls this routine in response to an SLI4 XRI ABORT CQE 12093 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event, 12094 * the driver is required to send a LOGO to the remote node before it 12095 * attempts to recover its login to the remote node. 12096 */ 12097 void 12098 lpfc_sli_abts_recover_port(struct lpfc_vport *vport, 12099 struct lpfc_nodelist *ndlp) 12100 { 12101 struct Scsi_Host *shost; 12102 struct lpfc_hba *phba; 12103 unsigned long flags = 0; 12104 12105 shost = lpfc_shost_from_vport(vport); 12106 phba = vport->phba; 12107 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) { 12108 lpfc_printf_log(phba, KERN_INFO, 12109 LOG_SLI, "3093 No rport recovery needed. " 12110 "rport in state 0x%x\n", ndlp->nlp_state); 12111 return; 12112 } 12113 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 12114 "3094 Start rport recovery on shost id 0x%x " 12115 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x " 12116 "flags 0x%x\n", 12117 shost->host_no, ndlp->nlp_DID, 12118 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state, 12119 ndlp->nlp_flag); 12120 /* 12121 * The rport is not responding. Remove the FCP-2 flag to prevent 12122 * an ADISC in the follow-up recovery code. 12123 */ 12124 spin_lock_irqsave(&ndlp->lock, flags); 12125 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 12126 ndlp->nlp_flag |= NLP_ISSUE_LOGO; 12127 spin_unlock_irqrestore(&ndlp->lock, flags); 12128 lpfc_unreg_rpi(vport, ndlp); 12129 } 12130 12131 static void lpfc_init_cs_ctl_bitmap(struct lpfc_vport *vport) 12132 { 12133 bitmap_zero(vport->vmid_priority_range, LPFC_VMID_MAX_PRIORITY_RANGE); 12134 } 12135 12136 static void 12137 lpfc_vmid_set_cs_ctl_range(struct lpfc_vport *vport, u32 min, u32 max) 12138 { 12139 u32 i; 12140 12141 if ((min > max) || (max > LPFC_VMID_MAX_PRIORITY_RANGE)) 12142 return; 12143 12144 for (i = min; i <= max; i++) 12145 set_bit(i, vport->vmid_priority_range); 12146 } 12147 12148 static void lpfc_vmid_put_cs_ctl(struct lpfc_vport *vport, u32 ctcl_vmid) 12149 { 12150 set_bit(ctcl_vmid, vport->vmid_priority_range); 12151 } 12152 12153 u32 lpfc_vmid_get_cs_ctl(struct lpfc_vport *vport) 12154 { 12155 u32 i; 12156 12157 i = find_first_bit(vport->vmid_priority_range, 12158 LPFC_VMID_MAX_PRIORITY_RANGE); 12159 12160 if (i == LPFC_VMID_MAX_PRIORITY_RANGE) 12161 return 0; 12162 12163 clear_bit(i, vport->vmid_priority_range); 12164 return i; 12165 } 12166 12167 #define MAX_PRIORITY_DESC 255 12168 12169 static void 12170 lpfc_cmpl_els_qfpa(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 12171 struct lpfc_iocbq *rspiocb) 12172 { 12173 struct lpfc_vport *vport = cmdiocb->vport; 12174 struct priority_range_desc *desc; 12175 struct lpfc_dmabuf *prsp = NULL; 12176 struct lpfc_vmid_priority_range *vmid_range = NULL; 12177 u32 *data; 12178 struct lpfc_dmabuf *dmabuf = cmdiocb->cmd_dmabuf; 12179 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 12180 u32 ulp_word4 = get_job_word4(phba, rspiocb); 12181 u8 *pcmd, max_desc; 12182 u32 len, i; 12183 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 12184 12185 prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list); 12186 if (!prsp) 12187 goto out; 12188 12189 pcmd = prsp->virt; 12190 data = (u32 *)pcmd; 12191 if (data[0] == ELS_CMD_LS_RJT) { 12192 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 12193 "3277 QFPA LS_RJT x%x x%x\n", 12194 data[0], data[1]); 12195 goto out; 12196 } 12197 if (ulp_status) { 12198 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 12199 "6529 QFPA failed with status x%x x%x\n", 12200 ulp_status, ulp_word4); 12201 goto out; 12202 } 12203 12204 if (!vport->qfpa_res) { 12205 max_desc = FCELSSIZE / sizeof(*vport->qfpa_res); 12206 vport->qfpa_res = kcalloc(max_desc, sizeof(*vport->qfpa_res), 12207 GFP_KERNEL); 12208 if (!vport->qfpa_res) 12209 goto out; 12210 } 12211 12212 len = *((u32 *)(pcmd + 4)); 12213 len = be32_to_cpu(len); 12214 memcpy(vport->qfpa_res, pcmd, len + 8); 12215 len = len / LPFC_PRIORITY_RANGE_DESC_SIZE; 12216 12217 desc = (struct priority_range_desc *)(pcmd + 8); 12218 vmid_range = vport->vmid_priority.vmid_range; 12219 if (!vmid_range) { 12220 vmid_range = kcalloc(MAX_PRIORITY_DESC, sizeof(*vmid_range), 12221 GFP_KERNEL); 12222 if (!vmid_range) { 12223 kfree(vport->qfpa_res); 12224 goto out; 12225 } 12226 vport->vmid_priority.vmid_range = vmid_range; 12227 } 12228 vport->vmid_priority.num_descriptors = len; 12229 12230 for (i = 0; i < len; i++, vmid_range++, desc++) { 12231 lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS, 12232 "6539 vmid values low=%d, high=%d, qos=%d, " 12233 "local ve id=%d\n", desc->lo_range, 12234 desc->hi_range, desc->qos_priority, 12235 desc->local_ve_id); 12236 12237 vmid_range->low = desc->lo_range << 1; 12238 if (desc->local_ve_id == QFPA_ODD_ONLY) 12239 vmid_range->low++; 12240 if (desc->qos_priority) 12241 vport->vmid_flag |= LPFC_VMID_QOS_ENABLED; 12242 vmid_range->qos = desc->qos_priority; 12243 12244 vmid_range->high = desc->hi_range << 1; 12245 if ((desc->local_ve_id == QFPA_ODD_ONLY) || 12246 (desc->local_ve_id == QFPA_EVEN_ODD)) 12247 vmid_range->high++; 12248 } 12249 lpfc_init_cs_ctl_bitmap(vport); 12250 for (i = 0; i < vport->vmid_priority.num_descriptors; i++) { 12251 lpfc_vmid_set_cs_ctl_range(vport, 12252 vport->vmid_priority.vmid_range[i].low, 12253 vport->vmid_priority.vmid_range[i].high); 12254 } 12255 12256 vport->vmid_flag |= LPFC_VMID_QFPA_CMPL; 12257 out: 12258 lpfc_els_free_iocb(phba, cmdiocb); 12259 lpfc_nlp_put(ndlp); 12260 } 12261 12262 int lpfc_issue_els_qfpa(struct lpfc_vport *vport) 12263 { 12264 struct lpfc_hba *phba = vport->phba; 12265 struct lpfc_nodelist *ndlp; 12266 struct lpfc_iocbq *elsiocb; 12267 u8 *pcmd; 12268 int ret; 12269 12270 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 12271 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 12272 return -ENXIO; 12273 12274 elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_QFPA_SIZE, 2, ndlp, 12275 ndlp->nlp_DID, ELS_CMD_QFPA); 12276 if (!elsiocb) 12277 return -ENOMEM; 12278 12279 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 12280 12281 *((u32 *)(pcmd)) = ELS_CMD_QFPA; 12282 pcmd += 4; 12283 12284 elsiocb->cmd_cmpl = lpfc_cmpl_els_qfpa; 12285 12286 elsiocb->ndlp = lpfc_nlp_get(ndlp); 12287 if (!elsiocb->ndlp) { 12288 lpfc_els_free_iocb(vport->phba, elsiocb); 12289 return -ENXIO; 12290 } 12291 12292 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 2); 12293 if (ret != IOCB_SUCCESS) { 12294 lpfc_els_free_iocb(phba, elsiocb); 12295 lpfc_nlp_put(ndlp); 12296 return -EIO; 12297 } 12298 vport->vmid_flag &= ~LPFC_VMID_QOS_ENABLED; 12299 return 0; 12300 } 12301 12302 int 12303 lpfc_vmid_uvem(struct lpfc_vport *vport, 12304 struct lpfc_vmid *vmid, bool instantiated) 12305 { 12306 struct lpfc_vem_id_desc *vem_id_desc; 12307 struct lpfc_nodelist *ndlp; 12308 struct lpfc_iocbq *elsiocb; 12309 struct instantiated_ve_desc *inst_desc; 12310 struct lpfc_vmid_context *vmid_context; 12311 u8 *pcmd; 12312 u32 *len; 12313 int ret = 0; 12314 12315 ndlp = lpfc_findnode_did(vport, Fabric_DID); 12316 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 12317 return -ENXIO; 12318 12319 vmid_context = kmalloc(sizeof(*vmid_context), GFP_KERNEL); 12320 if (!vmid_context) 12321 return -ENOMEM; 12322 elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_UVEM_SIZE, 2, 12323 ndlp, Fabric_DID, ELS_CMD_UVEM); 12324 if (!elsiocb) 12325 goto out; 12326 12327 lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS, 12328 "3427 Host vmid %s %d\n", 12329 vmid->host_vmid, instantiated); 12330 vmid_context->vmp = vmid; 12331 vmid_context->nlp = ndlp; 12332 vmid_context->instantiated = instantiated; 12333 elsiocb->vmid_tag.vmid_context = vmid_context; 12334 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 12335 12336 if (uuid_is_null((uuid_t *)vport->lpfc_vmid_host_uuid)) 12337 memcpy(vport->lpfc_vmid_host_uuid, vmid->host_vmid, 12338 LPFC_COMPRESS_VMID_SIZE); 12339 12340 *((u32 *)(pcmd)) = ELS_CMD_UVEM; 12341 len = (u32 *)(pcmd + 4); 12342 *len = cpu_to_be32(LPFC_UVEM_SIZE - 8); 12343 12344 vem_id_desc = (struct lpfc_vem_id_desc *)(pcmd + 8); 12345 vem_id_desc->tag = be32_to_cpu(VEM_ID_DESC_TAG); 12346 vem_id_desc->length = be32_to_cpu(LPFC_UVEM_VEM_ID_DESC_SIZE); 12347 memcpy(vem_id_desc->vem_id, vport->lpfc_vmid_host_uuid, 12348 LPFC_COMPRESS_VMID_SIZE); 12349 12350 inst_desc = (struct instantiated_ve_desc *)(pcmd + 32); 12351 inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG); 12352 inst_desc->length = be32_to_cpu(LPFC_UVEM_VE_MAP_DESC_SIZE); 12353 memcpy(inst_desc->global_vem_id, vmid->host_vmid, 12354 LPFC_COMPRESS_VMID_SIZE); 12355 12356 bf_set(lpfc_instantiated_nport_id, inst_desc, vport->fc_myDID); 12357 bf_set(lpfc_instantiated_local_id, inst_desc, 12358 vmid->un.cs_ctl_vmid); 12359 if (instantiated) { 12360 inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG); 12361 } else { 12362 inst_desc->tag = be32_to_cpu(DEINSTANTIATED_VE_DESC_TAG); 12363 lpfc_vmid_put_cs_ctl(vport, vmid->un.cs_ctl_vmid); 12364 } 12365 inst_desc->word6 = cpu_to_be32(inst_desc->word6); 12366 12367 elsiocb->cmd_cmpl = lpfc_cmpl_els_uvem; 12368 12369 elsiocb->ndlp = lpfc_nlp_get(ndlp); 12370 if (!elsiocb->ndlp) { 12371 lpfc_els_free_iocb(vport->phba, elsiocb); 12372 goto out; 12373 } 12374 12375 ret = lpfc_sli_issue_iocb(vport->phba, LPFC_ELS_RING, elsiocb, 0); 12376 if (ret != IOCB_SUCCESS) { 12377 lpfc_els_free_iocb(vport->phba, elsiocb); 12378 lpfc_nlp_put(ndlp); 12379 goto out; 12380 } 12381 12382 return 0; 12383 out: 12384 kfree(vmid_context); 12385 return -EIO; 12386 } 12387 12388 static void 12389 lpfc_cmpl_els_uvem(struct lpfc_hba *phba, struct lpfc_iocbq *icmdiocb, 12390 struct lpfc_iocbq *rspiocb) 12391 { 12392 struct lpfc_vport *vport = icmdiocb->vport; 12393 struct lpfc_dmabuf *prsp = NULL; 12394 struct lpfc_vmid_context *vmid_context = 12395 icmdiocb->vmid_tag.vmid_context; 12396 struct lpfc_nodelist *ndlp = icmdiocb->ndlp; 12397 u8 *pcmd; 12398 u32 *data; 12399 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 12400 u32 ulp_word4 = get_job_word4(phba, rspiocb); 12401 struct lpfc_dmabuf *dmabuf = icmdiocb->cmd_dmabuf; 12402 struct lpfc_vmid *vmid; 12403 12404 vmid = vmid_context->vmp; 12405 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 12406 ndlp = NULL; 12407 12408 prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list); 12409 if (!prsp) 12410 goto out; 12411 pcmd = prsp->virt; 12412 data = (u32 *)pcmd; 12413 if (data[0] == ELS_CMD_LS_RJT) { 12414 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 12415 "4532 UVEM LS_RJT %x %x\n", data[0], data[1]); 12416 goto out; 12417 } 12418 if (ulp_status) { 12419 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 12420 "4533 UVEM error status %x: %x\n", 12421 ulp_status, ulp_word4); 12422 goto out; 12423 } 12424 spin_lock(&phba->hbalock); 12425 /* Set IN USE flag */ 12426 vport->vmid_flag |= LPFC_VMID_IN_USE; 12427 phba->pport->vmid_flag |= LPFC_VMID_IN_USE; 12428 spin_unlock(&phba->hbalock); 12429 12430 if (vmid_context->instantiated) { 12431 write_lock(&vport->vmid_lock); 12432 vmid->flag |= LPFC_VMID_REGISTERED; 12433 vmid->flag &= ~LPFC_VMID_REQ_REGISTER; 12434 write_unlock(&vport->vmid_lock); 12435 } 12436 12437 out: 12438 kfree(vmid_context); 12439 lpfc_els_free_iocb(phba, icmdiocb); 12440 lpfc_nlp_put(ndlp); 12441 } 12442