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(vport, 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(vport, 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(vport, 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_IGNR_REG_CMPL | 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 flg x%x Data:" 2217 " x%px\n", 2218 ndlp->nlp_defer_did, ndlp->nlp_DID, 2219 ndlp->nlp_rpi, ndlp->nlp_flag, ndlp); 2220 2221 /* We can only defer 1st PLOGI */ 2222 if (ndlp->nlp_defer_did == NLP_EVT_NOTHING_PENDING) 2223 ndlp->nlp_defer_did = did; 2224 return 0; 2225 } 2226 2227 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); 2228 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, 2229 ELS_CMD_PLOGI); 2230 if (!elsiocb) 2231 return 1; 2232 2233 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 2234 2235 /* For PLOGI request, remainder of payload is service parameters */ 2236 *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; 2237 pcmd += sizeof(uint32_t); 2238 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); 2239 sp = (struct serv_parm *) pcmd; 2240 2241 /* 2242 * If we are a N-port connected to a Fabric, fix-up paramm's so logins 2243 * to device on remote loops work. 2244 */ 2245 if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP)) 2246 sp->cmn.altBbCredit = 1; 2247 2248 if (sp->cmn.fcphLow < FC_PH_4_3) 2249 sp->cmn.fcphLow = FC_PH_4_3; 2250 2251 if (sp->cmn.fcphHigh < FC_PH3) 2252 sp->cmn.fcphHigh = FC_PH3; 2253 2254 sp->cmn.valid_vendor_ver_level = 0; 2255 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion)); 2256 sp->cmn.bbRcvSizeMsb &= 0xF; 2257 2258 /* Check if the destination port supports VMID */ 2259 ndlp->vmid_support = 0; 2260 if (vport->vmid_priority_tagging) 2261 sp->cmn.priority_tagging = 1; 2262 else if (phba->cfg_vmid_app_header && 2263 bf_get(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags)) 2264 sp->cmn.app_hdr_support = 1; 2265 2266 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2267 "Issue PLOGI: did:x%x", 2268 did, 0, 0); 2269 2270 /* If our firmware supports this feature, convey that 2271 * information to the target using the vendor specific field. 2272 */ 2273 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) { 2274 sp->cmn.valid_vendor_ver_level = 1; 2275 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID); 2276 sp->un.vv.flags = cpu_to_be32(LPFC_VV_SUPPRESS_RSP); 2277 } 2278 2279 phba->fc_stat.elsXmitPLOGI++; 2280 elsiocb->cmd_cmpl = lpfc_cmpl_els_plogi; 2281 2282 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2283 "Issue PLOGI: did:x%x refcnt %d", 2284 did, kref_read(&ndlp->kref), 0); 2285 elsiocb->ndlp = lpfc_nlp_get(ndlp); 2286 if (!elsiocb->ndlp) { 2287 lpfc_els_free_iocb(phba, elsiocb); 2288 return 1; 2289 } 2290 2291 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 2292 if (ret) { 2293 lpfc_els_free_iocb(phba, elsiocb); 2294 lpfc_nlp_put(ndlp); 2295 return 1; 2296 } 2297 2298 return 0; 2299 } 2300 2301 /** 2302 * lpfc_cmpl_els_prli - Completion callback function for prli 2303 * @phba: pointer to lpfc hba data structure. 2304 * @cmdiocb: pointer to lpfc command iocb data structure. 2305 * @rspiocb: pointer to lpfc response iocb data structure. 2306 * 2307 * This routine is the completion callback function for a Process Login 2308 * (PRLI) ELS command. The PRLI response IOCB status is checked for error 2309 * status. If there is error status reported, PRLI retry shall be attempted 2310 * by invoking the lpfc_els_retry() routine. Otherwise, the state 2311 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this 2312 * ndlp to mark the PRLI completion. 2313 **/ 2314 static void 2315 lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2316 struct lpfc_iocbq *rspiocb) 2317 { 2318 struct lpfc_vport *vport = cmdiocb->vport; 2319 struct lpfc_nodelist *ndlp; 2320 char *mode; 2321 u32 loglevel; 2322 u32 ulp_status; 2323 u32 ulp_word4; 2324 bool release_node = false; 2325 2326 /* we pass cmdiocb to state machine which needs rspiocb as well */ 2327 cmdiocb->rsp_iocb = rspiocb; 2328 2329 ndlp = cmdiocb->ndlp; 2330 2331 ulp_status = get_job_ulpstatus(phba, rspiocb); 2332 ulp_word4 = get_job_word4(phba, rspiocb); 2333 2334 spin_lock_irq(&ndlp->lock); 2335 ndlp->nlp_flag &= ~NLP_PRLI_SND; 2336 2337 /* Driver supports multiple FC4 types. Counters matter. */ 2338 vport->fc_prli_sent--; 2339 ndlp->fc4_prli_sent--; 2340 spin_unlock_irq(&ndlp->lock); 2341 2342 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2343 "PRLI cmpl: status:x%x/x%x did:x%x", 2344 ulp_status, ulp_word4, 2345 ndlp->nlp_DID); 2346 2347 /* PRLI completes to NPort <nlp_DID> */ 2348 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 2349 "0103 PRLI completes to NPort x%06x " 2350 "Data: x%x x%x x%x x%x\n", 2351 ndlp->nlp_DID, ulp_status, ulp_word4, 2352 vport->num_disc_nodes, ndlp->fc4_prli_sent); 2353 2354 /* Check to see if link went down during discovery */ 2355 if (lpfc_els_chk_latt(vport)) 2356 goto out; 2357 2358 if (ulp_status) { 2359 /* Check for retry */ 2360 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { 2361 /* ELS command is being retried */ 2362 goto out; 2363 } 2364 2365 /* If we don't send GFT_ID to Fabric, a PRLI error 2366 * could be expected. 2367 */ 2368 if ((vport->fc_flag & FC_FABRIC) || 2369 (vport->cfg_enable_fc4_type != LPFC_ENABLE_BOTH)) { 2370 mode = KERN_ERR; 2371 loglevel = LOG_TRACE_EVENT; 2372 } else { 2373 mode = KERN_INFO; 2374 loglevel = LOG_ELS; 2375 } 2376 2377 /* PRLI failed */ 2378 lpfc_printf_vlog(vport, mode, loglevel, 2379 "2754 PRLI failure DID:%06X Status:x%x/x%x, " 2380 "data: x%x x%x\n", 2381 ndlp->nlp_DID, ulp_status, 2382 ulp_word4, ndlp->nlp_state, 2383 ndlp->fc4_prli_sent); 2384 2385 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ 2386 if (!lpfc_error_lost_link(vport, ulp_status, ulp_word4)) 2387 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2388 NLP_EVT_CMPL_PRLI); 2389 2390 /* The following condition catches an inflight transition 2391 * mismatch typically caused by an RSCN. Skip any 2392 * processing to allow recovery. 2393 */ 2394 if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE && 2395 ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE) { 2396 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 2397 "2784 PRLI cmpl: state mismatch " 2398 "DID x%06x nstate x%x nflag x%x\n", 2399 ndlp->nlp_DID, ndlp->nlp_state, 2400 ndlp->nlp_flag); 2401 goto out; 2402 } 2403 2404 /* 2405 * For P2P topology, retain the node so that PLOGI can be 2406 * attempted on it again. 2407 */ 2408 if (vport->fc_flag & FC_PT2PT) 2409 goto out; 2410 2411 /* As long as this node is not registered with the SCSI 2412 * or NVMe transport and no other PRLIs are outstanding, 2413 * it is no longer an active node. Otherwise devloss 2414 * handles the final cleanup. 2415 */ 2416 spin_lock_irq(&ndlp->lock); 2417 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) && 2418 !ndlp->fc4_prli_sent) { 2419 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 2420 if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS)) 2421 release_node = true; 2422 } 2423 spin_unlock_irq(&ndlp->lock); 2424 2425 if (release_node) 2426 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2427 NLP_EVT_DEVICE_RM); 2428 } else { 2429 /* Good status, call state machine. However, if another 2430 * PRLI is outstanding, don't call the state machine 2431 * because final disposition to Mapped or Unmapped is 2432 * completed there. 2433 */ 2434 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2435 NLP_EVT_CMPL_PRLI); 2436 } 2437 2438 out: 2439 lpfc_els_free_iocb(phba, cmdiocb); 2440 lpfc_nlp_put(ndlp); 2441 return; 2442 } 2443 2444 /** 2445 * lpfc_issue_els_prli - Issue a prli iocb command for a vport 2446 * @vport: pointer to a host virtual N_Port data structure. 2447 * @ndlp: pointer to a node-list data structure. 2448 * @retry: number of retries to the command IOCB. 2449 * 2450 * This routine issues a Process Login (PRLI) ELS command for the 2451 * @vport. The PRLI service parameters are set up in the payload of the 2452 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine 2453 * is put to the IOCB completion callback func field before invoking the 2454 * routine lpfc_sli_issue_iocb() to send out PRLI command. 2455 * 2456 * Note that the ndlp reference count will be incremented by 1 for holding the 2457 * ndlp and the reference to ndlp will be stored into the ndlp field of 2458 * the IOCB for the completion callback function to the PRLI ELS command. 2459 * 2460 * Return code 2461 * 0 - successfully issued prli iocb command for @vport 2462 * 1 - failed to issue prli iocb command for @vport 2463 **/ 2464 int 2465 lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2466 uint8_t retry) 2467 { 2468 int rc = 0; 2469 struct lpfc_hba *phba = vport->phba; 2470 PRLI *npr; 2471 struct lpfc_nvme_prli *npr_nvme; 2472 struct lpfc_iocbq *elsiocb; 2473 uint8_t *pcmd; 2474 uint16_t cmdsize; 2475 u32 local_nlp_type, elscmd; 2476 2477 /* 2478 * If we are in RSCN mode, the FC4 types supported from a 2479 * previous GFT_ID command may not be accurate. So, if we 2480 * are a NVME Initiator, always look for the possibility of 2481 * the remote NPort beng a NVME Target. 2482 */ 2483 if (phba->sli_rev == LPFC_SLI_REV4 && 2484 vport->fc_flag & FC_RSCN_MODE && 2485 vport->nvmei_support) 2486 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 2487 local_nlp_type = ndlp->nlp_fc4_type; 2488 2489 /* This routine will issue 1 or 2 PRLIs, so zero all the ndlp 2490 * fields here before any of them can complete. 2491 */ 2492 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 2493 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 2494 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 2495 ndlp->nlp_flag &= ~(NLP_FIRSTBURST | NLP_NPR_2B_DISC); 2496 ndlp->nvme_fb_size = 0; 2497 2498 send_next_prli: 2499 if (local_nlp_type & NLP_FC4_FCP) { 2500 /* Payload is 4 + 16 = 20 x14 bytes. */ 2501 cmdsize = (sizeof(uint32_t) + sizeof(PRLI)); 2502 elscmd = ELS_CMD_PRLI; 2503 } else if (local_nlp_type & NLP_FC4_NVME) { 2504 /* Payload is 4 + 20 = 24 x18 bytes. */ 2505 cmdsize = (sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli)); 2506 elscmd = ELS_CMD_NVMEPRLI; 2507 } else { 2508 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2509 "3083 Unknown FC_TYPE x%x ndlp x%06x\n", 2510 ndlp->nlp_fc4_type, ndlp->nlp_DID); 2511 return 1; 2512 } 2513 2514 /* SLI3 ports don't support NVME. If this rport is a strict NVME 2515 * FC4 type, implicitly LOGO. 2516 */ 2517 if (phba->sli_rev == LPFC_SLI_REV3 && 2518 ndlp->nlp_fc4_type == NLP_FC4_NVME) { 2519 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2520 "3088 Rport fc4 type 0x%x not supported by SLI3 adapter\n", 2521 ndlp->nlp_type); 2522 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 2523 return 1; 2524 } 2525 2526 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 2527 ndlp->nlp_DID, elscmd); 2528 if (!elsiocb) 2529 return 1; 2530 2531 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 2532 2533 /* For PRLI request, remainder of payload is service parameters */ 2534 memset(pcmd, 0, cmdsize); 2535 2536 if (local_nlp_type & NLP_FC4_FCP) { 2537 /* Remainder of payload is FCP PRLI parameter page. 2538 * Note: this data structure is defined as 2539 * BE/LE in the structure definition so no 2540 * byte swap call is made. 2541 */ 2542 *((uint32_t *)(pcmd)) = ELS_CMD_PRLI; 2543 pcmd += sizeof(uint32_t); 2544 npr = (PRLI *)pcmd; 2545 2546 /* 2547 * If our firmware version is 3.20 or later, 2548 * set the following bits for FC-TAPE support. 2549 */ 2550 if (phba->vpd.rev.feaLevelHigh >= 0x02) { 2551 npr->ConfmComplAllowed = 1; 2552 npr->Retry = 1; 2553 npr->TaskRetryIdReq = 1; 2554 } 2555 npr->estabImagePair = 1; 2556 npr->readXferRdyDis = 1; 2557 if (vport->cfg_first_burst_size) 2558 npr->writeXferRdyDis = 1; 2559 2560 /* For FCP support */ 2561 npr->prliType = PRLI_FCP_TYPE; 2562 npr->initiatorFunc = 1; 2563 elsiocb->cmd_flag |= LPFC_PRLI_FCP_REQ; 2564 2565 /* Remove FCP type - processed. */ 2566 local_nlp_type &= ~NLP_FC4_FCP; 2567 } else if (local_nlp_type & NLP_FC4_NVME) { 2568 /* Remainder of payload is NVME PRLI parameter page. 2569 * This data structure is the newer definition that 2570 * uses bf macros so a byte swap is required. 2571 */ 2572 *((uint32_t *)(pcmd)) = ELS_CMD_NVMEPRLI; 2573 pcmd += sizeof(uint32_t); 2574 npr_nvme = (struct lpfc_nvme_prli *)pcmd; 2575 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE); 2576 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */ 2577 if (phba->nsler) { 2578 bf_set(prli_nsler, npr_nvme, 1); 2579 bf_set(prli_conf, npr_nvme, 1); 2580 } 2581 2582 /* Only initiators request first burst. */ 2583 if ((phba->cfg_nvme_enable_fb) && 2584 !phba->nvmet_support) 2585 bf_set(prli_fba, npr_nvme, 1); 2586 2587 if (phba->nvmet_support) { 2588 bf_set(prli_tgt, npr_nvme, 1); 2589 bf_set(prli_disc, npr_nvme, 1); 2590 } else { 2591 bf_set(prli_init, npr_nvme, 1); 2592 bf_set(prli_conf, npr_nvme, 1); 2593 } 2594 2595 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1); 2596 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4); 2597 elsiocb->cmd_flag |= LPFC_PRLI_NVME_REQ; 2598 2599 /* Remove NVME type - processed. */ 2600 local_nlp_type &= ~NLP_FC4_NVME; 2601 } 2602 2603 phba->fc_stat.elsXmitPRLI++; 2604 elsiocb->cmd_cmpl = lpfc_cmpl_els_prli; 2605 2606 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2607 "Issue PRLI: did:x%x refcnt %d", 2608 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 2609 elsiocb->ndlp = lpfc_nlp_get(ndlp); 2610 if (!elsiocb->ndlp) { 2611 lpfc_els_free_iocb(phba, elsiocb); 2612 return 1; 2613 } 2614 2615 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 2616 if (rc == IOCB_ERROR) { 2617 lpfc_els_free_iocb(phba, elsiocb); 2618 lpfc_nlp_put(ndlp); 2619 return 1; 2620 } 2621 2622 /* The vport counters are used for lpfc_scan_finished, but 2623 * the ndlp is used to track outstanding PRLIs for different 2624 * FC4 types. 2625 */ 2626 spin_lock_irq(&ndlp->lock); 2627 ndlp->nlp_flag |= NLP_PRLI_SND; 2628 vport->fc_prli_sent++; 2629 ndlp->fc4_prli_sent++; 2630 spin_unlock_irq(&ndlp->lock); 2631 2632 /* The driver supports 2 FC4 types. Make sure 2633 * a PRLI is issued for all types before exiting. 2634 */ 2635 if (phba->sli_rev == LPFC_SLI_REV4 && 2636 local_nlp_type & (NLP_FC4_FCP | NLP_FC4_NVME)) 2637 goto send_next_prli; 2638 else 2639 return 0; 2640 } 2641 2642 /** 2643 * lpfc_rscn_disc - Perform rscn discovery for a vport 2644 * @vport: pointer to a host virtual N_Port data structure. 2645 * 2646 * This routine performs Registration State Change Notification (RSCN) 2647 * discovery for a @vport. If the @vport's node port recovery count is not 2648 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all 2649 * the nodes that need recovery. If none of the PLOGI were needed through 2650 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be 2651 * invoked to check and handle possible more RSCN came in during the period 2652 * of processing the current ones. 2653 **/ 2654 static void 2655 lpfc_rscn_disc(struct lpfc_vport *vport) 2656 { 2657 lpfc_can_disctmo(vport); 2658 2659 /* RSCN discovery */ 2660 /* go thru NPR nodes and issue ELS PLOGIs */ 2661 if (vport->fc_npr_cnt) 2662 if (lpfc_els_disc_plogi(vport)) 2663 return; 2664 2665 lpfc_end_rscn(vport); 2666 } 2667 2668 /** 2669 * lpfc_adisc_done - Complete the adisc phase of discovery 2670 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs. 2671 * 2672 * This function is called when the final ADISC is completed during discovery. 2673 * This function handles clearing link attention or issuing reg_vpi depending 2674 * on whether npiv is enabled. This function also kicks off the PLOGI phase of 2675 * discovery. 2676 * This function is called with no locks held. 2677 **/ 2678 static void 2679 lpfc_adisc_done(struct lpfc_vport *vport) 2680 { 2681 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2682 struct lpfc_hba *phba = vport->phba; 2683 2684 /* 2685 * For NPIV, cmpl_reg_vpi will set port_state to READY, 2686 * and continue discovery. 2687 */ 2688 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 2689 !(vport->fc_flag & FC_RSCN_MODE) && 2690 (phba->sli_rev < LPFC_SLI_REV4)) { 2691 2692 /* 2693 * If link is down, clear_la and reg_vpi will be done after 2694 * flogi following a link up event 2695 */ 2696 if (!lpfc_is_link_up(phba)) 2697 return; 2698 2699 /* The ADISCs are complete. Doesn't matter if they 2700 * succeeded or failed because the ADISC completion 2701 * routine guarantees to call the state machine and 2702 * the RPI is either unregistered (failed ADISC response) 2703 * or the RPI is still valid and the node is marked 2704 * mapped for a target. The exchanges should be in the 2705 * correct state. This code is specific to SLI3. 2706 */ 2707 lpfc_issue_clear_la(phba, vport); 2708 lpfc_issue_reg_vpi(phba, vport); 2709 return; 2710 } 2711 /* 2712 * For SLI2, we need to set port_state to READY 2713 * and continue discovery. 2714 */ 2715 if (vport->port_state < LPFC_VPORT_READY) { 2716 /* If we get here, there is nothing to ADISC */ 2717 lpfc_issue_clear_la(phba, vport); 2718 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 2719 vport->num_disc_nodes = 0; 2720 /* go thru NPR list, issue ELS PLOGIs */ 2721 if (vport->fc_npr_cnt) 2722 lpfc_els_disc_plogi(vport); 2723 if (!vport->num_disc_nodes) { 2724 spin_lock_irq(shost->host_lock); 2725 vport->fc_flag &= ~FC_NDISC_ACTIVE; 2726 spin_unlock_irq(shost->host_lock); 2727 lpfc_can_disctmo(vport); 2728 lpfc_end_rscn(vport); 2729 } 2730 } 2731 vport->port_state = LPFC_VPORT_READY; 2732 } else 2733 lpfc_rscn_disc(vport); 2734 } 2735 2736 /** 2737 * lpfc_more_adisc - Issue more adisc as needed 2738 * @vport: pointer to a host virtual N_Port data structure. 2739 * 2740 * This routine determines whether there are more ndlps on a @vport 2741 * node list need to have Address Discover (ADISC) issued. If so, it will 2742 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's 2743 * remaining nodes which need to have ADISC sent. 2744 **/ 2745 void 2746 lpfc_more_adisc(struct lpfc_vport *vport) 2747 { 2748 if (vport->num_disc_nodes) 2749 vport->num_disc_nodes--; 2750 /* Continue discovery with <num_disc_nodes> ADISCs to go */ 2751 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2752 "0210 Continue discovery with %d ADISCs to go " 2753 "Data: x%x x%x x%x\n", 2754 vport->num_disc_nodes, vport->fc_adisc_cnt, 2755 vport->fc_flag, vport->port_state); 2756 /* Check to see if there are more ADISCs to be sent */ 2757 if (vport->fc_flag & FC_NLP_MORE) { 2758 lpfc_set_disctmo(vport); 2759 /* go thru NPR nodes and issue any remaining ELS ADISCs */ 2760 lpfc_els_disc_adisc(vport); 2761 } 2762 if (!vport->num_disc_nodes) 2763 lpfc_adisc_done(vport); 2764 return; 2765 } 2766 2767 /** 2768 * lpfc_cmpl_els_adisc - Completion callback function for adisc 2769 * @phba: pointer to lpfc hba data structure. 2770 * @cmdiocb: pointer to lpfc command iocb data structure. 2771 * @rspiocb: pointer to lpfc response iocb data structure. 2772 * 2773 * This routine is the completion function for issuing the Address Discover 2774 * (ADISC) command. It first checks to see whether link went down during 2775 * the discovery process. If so, the node will be marked as node port 2776 * recovery for issuing discover IOCB by the link attention handler and 2777 * exit. Otherwise, the response status is checked. If error was reported 2778 * in the response status, the ADISC command shall be retried by invoking 2779 * the lpfc_els_retry() routine. Otherwise, if no error was reported in 2780 * the response status, the state machine is invoked to set transition 2781 * with respect to NLP_EVT_CMPL_ADISC event. 2782 **/ 2783 static void 2784 lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2785 struct lpfc_iocbq *rspiocb) 2786 { 2787 struct lpfc_vport *vport = cmdiocb->vport; 2788 IOCB_t *irsp; 2789 struct lpfc_nodelist *ndlp; 2790 int disc; 2791 u32 ulp_status, ulp_word4, tmo; 2792 bool release_node = false; 2793 2794 /* we pass cmdiocb to state machine which needs rspiocb as well */ 2795 cmdiocb->rsp_iocb = rspiocb; 2796 2797 ndlp = cmdiocb->ndlp; 2798 2799 ulp_status = get_job_ulpstatus(phba, rspiocb); 2800 ulp_word4 = get_job_word4(phba, rspiocb); 2801 2802 if (phba->sli_rev == LPFC_SLI_REV4) { 2803 tmo = get_wqe_tmo(cmdiocb); 2804 } else { 2805 irsp = &rspiocb->iocb; 2806 tmo = irsp->ulpTimeout; 2807 } 2808 2809 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2810 "ADISC cmpl: status:x%x/x%x did:x%x", 2811 ulp_status, ulp_word4, 2812 ndlp->nlp_DID); 2813 2814 /* Since ndlp can be freed in the disc state machine, note if this node 2815 * is being used during discovery. 2816 */ 2817 spin_lock_irq(&ndlp->lock); 2818 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); 2819 ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC); 2820 spin_unlock_irq(&ndlp->lock); 2821 /* ADISC completes to NPort <nlp_DID> */ 2822 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 2823 "0104 ADISC completes to NPort x%x " 2824 "Data: x%x x%x x%x x%x x%x\n", 2825 ndlp->nlp_DID, ulp_status, ulp_word4, 2826 tmo, disc, vport->num_disc_nodes); 2827 /* Check to see if link went down during discovery */ 2828 if (lpfc_els_chk_latt(vport)) { 2829 spin_lock_irq(&ndlp->lock); 2830 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 2831 spin_unlock_irq(&ndlp->lock); 2832 goto out; 2833 } 2834 2835 if (ulp_status) { 2836 /* Check for retry */ 2837 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { 2838 /* ELS command is being retried */ 2839 if (disc) { 2840 spin_lock_irq(&ndlp->lock); 2841 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 2842 spin_unlock_irq(&ndlp->lock); 2843 lpfc_set_disctmo(vport); 2844 } 2845 goto out; 2846 } 2847 /* ADISC failed */ 2848 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 2849 "2755 ADISC failure DID:%06X Status:x%x/x%x\n", 2850 ndlp->nlp_DID, ulp_status, 2851 ulp_word4); 2852 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2853 NLP_EVT_CMPL_ADISC); 2854 2855 /* As long as this node is not registered with the SCSI or NVMe 2856 * transport, it is no longer an active node. Otherwise 2857 * devloss handles the final cleanup. 2858 */ 2859 spin_lock_irq(&ndlp->lock); 2860 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { 2861 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 2862 if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS)) 2863 release_node = true; 2864 } 2865 spin_unlock_irq(&ndlp->lock); 2866 2867 if (release_node) 2868 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2869 NLP_EVT_DEVICE_RM); 2870 } else 2871 /* Good status, call state machine */ 2872 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2873 NLP_EVT_CMPL_ADISC); 2874 2875 /* Check to see if there are more ADISCs to be sent */ 2876 if (disc && vport->num_disc_nodes) 2877 lpfc_more_adisc(vport); 2878 out: 2879 lpfc_els_free_iocb(phba, cmdiocb); 2880 lpfc_nlp_put(ndlp); 2881 return; 2882 } 2883 2884 /** 2885 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport 2886 * @vport: pointer to a virtual N_Port data structure. 2887 * @ndlp: pointer to a node-list data structure. 2888 * @retry: number of retries to the command IOCB. 2889 * 2890 * This routine issues an Address Discover (ADISC) for an @ndlp on a 2891 * @vport. It prepares the payload of the ADISC ELS command, updates the 2892 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine 2893 * to issue the ADISC ELS command. 2894 * 2895 * Note that the ndlp reference count will be incremented by 1 for holding the 2896 * ndlp and the reference to ndlp will be stored into the ndlp field of 2897 * the IOCB for the completion callback function to the ADISC ELS command. 2898 * 2899 * Return code 2900 * 0 - successfully issued adisc 2901 * 1 - failed to issue adisc 2902 **/ 2903 int 2904 lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2905 uint8_t retry) 2906 { 2907 int rc = 0; 2908 struct lpfc_hba *phba = vport->phba; 2909 ADISC *ap; 2910 struct lpfc_iocbq *elsiocb; 2911 uint8_t *pcmd; 2912 uint16_t cmdsize; 2913 2914 cmdsize = (sizeof(uint32_t) + sizeof(ADISC)); 2915 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 2916 ndlp->nlp_DID, ELS_CMD_ADISC); 2917 if (!elsiocb) 2918 return 1; 2919 2920 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 2921 2922 /* For ADISC request, remainder of payload is service parameters */ 2923 *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; 2924 pcmd += sizeof(uint32_t); 2925 2926 /* Fill in ADISC payload */ 2927 ap = (ADISC *) pcmd; 2928 ap->hardAL_PA = phba->fc_pref_ALPA; 2929 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); 2930 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 2931 ap->DID = be32_to_cpu(vport->fc_myDID); 2932 2933 phba->fc_stat.elsXmitADISC++; 2934 elsiocb->cmd_cmpl = lpfc_cmpl_els_adisc; 2935 spin_lock_irq(&ndlp->lock); 2936 ndlp->nlp_flag |= NLP_ADISC_SND; 2937 spin_unlock_irq(&ndlp->lock); 2938 elsiocb->ndlp = lpfc_nlp_get(ndlp); 2939 if (!elsiocb->ndlp) { 2940 lpfc_els_free_iocb(phba, elsiocb); 2941 goto err; 2942 } 2943 2944 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2945 "Issue ADISC: did:x%x refcnt %d", 2946 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 2947 2948 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 2949 if (rc == IOCB_ERROR) { 2950 lpfc_els_free_iocb(phba, elsiocb); 2951 lpfc_nlp_put(ndlp); 2952 goto err; 2953 } 2954 2955 return 0; 2956 2957 err: 2958 spin_lock_irq(&ndlp->lock); 2959 ndlp->nlp_flag &= ~NLP_ADISC_SND; 2960 spin_unlock_irq(&ndlp->lock); 2961 return 1; 2962 } 2963 2964 /** 2965 * lpfc_cmpl_els_logo - Completion callback function for logo 2966 * @phba: pointer to lpfc hba data structure. 2967 * @cmdiocb: pointer to lpfc command iocb data structure. 2968 * @rspiocb: pointer to lpfc response iocb data structure. 2969 * 2970 * This routine is the completion function for issuing the ELS Logout (LOGO) 2971 * command. If no error status was reported from the LOGO response, the 2972 * state machine of the associated ndlp shall be invoked for transition with 2973 * respect to NLP_EVT_CMPL_LOGO event. 2974 **/ 2975 static void 2976 lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2977 struct lpfc_iocbq *rspiocb) 2978 { 2979 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 2980 struct lpfc_vport *vport = ndlp->vport; 2981 IOCB_t *irsp; 2982 unsigned long flags; 2983 uint32_t skip_recovery = 0; 2984 int wake_up_waiter = 0; 2985 u32 ulp_status; 2986 u32 ulp_word4; 2987 u32 tmo; 2988 2989 /* we pass cmdiocb to state machine which needs rspiocb as well */ 2990 cmdiocb->rsp_iocb = rspiocb; 2991 2992 ulp_status = get_job_ulpstatus(phba, rspiocb); 2993 ulp_word4 = get_job_word4(phba, rspiocb); 2994 2995 if (phba->sli_rev == LPFC_SLI_REV4) { 2996 tmo = get_wqe_tmo(cmdiocb); 2997 } else { 2998 irsp = &rspiocb->iocb; 2999 tmo = irsp->ulpTimeout; 3000 } 3001 3002 spin_lock_irq(&ndlp->lock); 3003 ndlp->nlp_flag &= ~NLP_LOGO_SND; 3004 if (ndlp->save_flags & NLP_WAIT_FOR_LOGO) { 3005 wake_up_waiter = 1; 3006 ndlp->save_flags &= ~NLP_WAIT_FOR_LOGO; 3007 } 3008 spin_unlock_irq(&ndlp->lock); 3009 3010 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3011 "LOGO cmpl: status:x%x/x%x did:x%x", 3012 ulp_status, ulp_word4, 3013 ndlp->nlp_DID); 3014 3015 /* LOGO completes to NPort <nlp_DID> */ 3016 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 3017 "0105 LOGO completes to NPort x%x " 3018 "refcnt %d nflags x%x Data: x%x x%x x%x x%x\n", 3019 ndlp->nlp_DID, kref_read(&ndlp->kref), ndlp->nlp_flag, 3020 ulp_status, ulp_word4, 3021 tmo, vport->num_disc_nodes); 3022 3023 if (lpfc_els_chk_latt(vport)) { 3024 skip_recovery = 1; 3025 goto out; 3026 } 3027 3028 /* The LOGO will not be retried on failure. A LOGO was 3029 * issued to the remote rport and a ACC or RJT or no Answer are 3030 * all acceptable. Note the failure and move forward with 3031 * discovery. The PLOGI will retry. 3032 */ 3033 if (ulp_status) { 3034 /* LOGO failed */ 3035 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3036 "2756 LOGO failure, No Retry DID:%06X " 3037 "Status:x%x/x%x\n", 3038 ndlp->nlp_DID, ulp_status, 3039 ulp_word4); 3040 3041 if (lpfc_error_lost_link(vport, ulp_status, ulp_word4)) 3042 skip_recovery = 1; 3043 } 3044 3045 /* Call state machine. This will unregister the rpi if needed. */ 3046 lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO); 3047 3048 if (skip_recovery) 3049 goto out; 3050 3051 /* The driver sets this flag for an NPIV instance that doesn't want to 3052 * log into the remote port. 3053 */ 3054 if (ndlp->nlp_flag & NLP_TARGET_REMOVE) { 3055 spin_lock_irq(&ndlp->lock); 3056 if (phba->sli_rev == LPFC_SLI_REV4) 3057 ndlp->nlp_flag |= NLP_RELEASE_RPI; 3058 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 3059 spin_unlock_irq(&ndlp->lock); 3060 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 3061 NLP_EVT_DEVICE_RM); 3062 goto out_rsrc_free; 3063 } 3064 3065 out: 3066 /* At this point, the LOGO processing is complete. NOTE: For a 3067 * pt2pt topology, we are assuming the NPortID will only change 3068 * on link up processing. For a LOGO / PLOGI initiated by the 3069 * Initiator, we are assuming the NPortID is not going to change. 3070 */ 3071 3072 if (wake_up_waiter && ndlp->logo_waitq) 3073 wake_up(ndlp->logo_waitq); 3074 /* 3075 * If the node is a target, the handling attempts to recover the port. 3076 * For any other port type, the rpi is unregistered as an implicit 3077 * LOGO. 3078 */ 3079 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) && 3080 skip_recovery == 0) { 3081 lpfc_cancel_retry_delay_tmo(vport, ndlp); 3082 spin_lock_irqsave(&ndlp->lock, flags); 3083 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 3084 spin_unlock_irqrestore(&ndlp->lock, flags); 3085 3086 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 3087 "3187 LOGO completes to NPort x%x: Start " 3088 "Recovery Data: x%x x%x x%x x%x\n", 3089 ndlp->nlp_DID, ulp_status, 3090 ulp_word4, tmo, 3091 vport->num_disc_nodes); 3092 3093 lpfc_els_free_iocb(phba, cmdiocb); 3094 lpfc_nlp_put(ndlp); 3095 3096 lpfc_disc_start(vport); 3097 return; 3098 } 3099 3100 /* Cleanup path for failed REG_RPI handling. If REG_RPI fails, the 3101 * driver sends a LOGO to the rport to cleanup. For fabric and 3102 * initiator ports cleanup the node as long as it the node is not 3103 * register with the transport. 3104 */ 3105 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { 3106 spin_lock_irq(&ndlp->lock); 3107 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 3108 spin_unlock_irq(&ndlp->lock); 3109 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 3110 NLP_EVT_DEVICE_RM); 3111 } 3112 out_rsrc_free: 3113 /* Driver is done with the I/O. */ 3114 lpfc_els_free_iocb(phba, cmdiocb); 3115 lpfc_nlp_put(ndlp); 3116 } 3117 3118 /** 3119 * lpfc_issue_els_logo - Issue a logo to an node on a vport 3120 * @vport: pointer to a virtual N_Port data structure. 3121 * @ndlp: pointer to a node-list data structure. 3122 * @retry: number of retries to the command IOCB. 3123 * 3124 * This routine constructs and issues an ELS Logout (LOGO) iocb command 3125 * to a remote node, referred by an @ndlp on a @vport. It constructs the 3126 * payload of the IOCB, properly sets up the @ndlp state, and invokes the 3127 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command. 3128 * 3129 * Note that the ndlp reference count will be incremented by 1 for holding the 3130 * ndlp and the reference to ndlp will be stored into the ndlp field of 3131 * the IOCB for the completion callback function to the LOGO ELS command. 3132 * 3133 * Callers of this routine are expected to unregister the RPI first 3134 * 3135 * Return code 3136 * 0 - successfully issued logo 3137 * 1 - failed to issue logo 3138 **/ 3139 int 3140 lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3141 uint8_t retry) 3142 { 3143 struct lpfc_hba *phba = vport->phba; 3144 struct lpfc_iocbq *elsiocb; 3145 uint8_t *pcmd; 3146 uint16_t cmdsize; 3147 int rc; 3148 3149 spin_lock_irq(&ndlp->lock); 3150 if (ndlp->nlp_flag & NLP_LOGO_SND) { 3151 spin_unlock_irq(&ndlp->lock); 3152 return 0; 3153 } 3154 spin_unlock_irq(&ndlp->lock); 3155 3156 cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name); 3157 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3158 ndlp->nlp_DID, ELS_CMD_LOGO); 3159 if (!elsiocb) 3160 return 1; 3161 3162 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 3163 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; 3164 pcmd += sizeof(uint32_t); 3165 3166 /* Fill in LOGO payload */ 3167 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); 3168 pcmd += sizeof(uint32_t); 3169 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); 3170 3171 phba->fc_stat.elsXmitLOGO++; 3172 elsiocb->cmd_cmpl = lpfc_cmpl_els_logo; 3173 spin_lock_irq(&ndlp->lock); 3174 ndlp->nlp_flag |= NLP_LOGO_SND; 3175 ndlp->nlp_flag &= ~NLP_ISSUE_LOGO; 3176 spin_unlock_irq(&ndlp->lock); 3177 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3178 if (!elsiocb->ndlp) { 3179 lpfc_els_free_iocb(phba, elsiocb); 3180 goto err; 3181 } 3182 3183 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3184 "Issue LOGO: did:x%x refcnt %d", 3185 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 3186 3187 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3188 if (rc == IOCB_ERROR) { 3189 lpfc_els_free_iocb(phba, elsiocb); 3190 lpfc_nlp_put(ndlp); 3191 goto err; 3192 } 3193 3194 spin_lock_irq(&ndlp->lock); 3195 ndlp->nlp_prev_state = ndlp->nlp_state; 3196 spin_unlock_irq(&ndlp->lock); 3197 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); 3198 return 0; 3199 3200 err: 3201 spin_lock_irq(&ndlp->lock); 3202 ndlp->nlp_flag &= ~NLP_LOGO_SND; 3203 spin_unlock_irq(&ndlp->lock); 3204 return 1; 3205 } 3206 3207 /** 3208 * lpfc_cmpl_els_cmd - Completion callback function for generic els command 3209 * @phba: pointer to lpfc hba data structure. 3210 * @cmdiocb: pointer to lpfc command iocb data structure. 3211 * @rspiocb: pointer to lpfc response iocb data structure. 3212 * 3213 * This routine is a generic completion callback function for ELS commands. 3214 * Specifically, it is the callback function which does not need to perform 3215 * any command specific operations. It is currently used by the ELS command 3216 * issuing routines for RSCN, lpfc_issue_els_rscn, and the ELS Fibre Channel 3217 * Address Resolution Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). 3218 * Other than certain debug loggings, this callback function simply invokes the 3219 * lpfc_els_chk_latt() routine to check whether link went down during the 3220 * discovery process. 3221 **/ 3222 static void 3223 lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 3224 struct lpfc_iocbq *rspiocb) 3225 { 3226 struct lpfc_vport *vport = cmdiocb->vport; 3227 struct lpfc_nodelist *free_ndlp; 3228 IOCB_t *irsp; 3229 u32 ulp_status, ulp_word4, tmo, did, iotag; 3230 3231 ulp_status = get_job_ulpstatus(phba, rspiocb); 3232 ulp_word4 = get_job_word4(phba, rspiocb); 3233 did = get_job_els_rsp64_did(phba, cmdiocb); 3234 3235 if (phba->sli_rev == LPFC_SLI_REV4) { 3236 tmo = get_wqe_tmo(cmdiocb); 3237 iotag = get_wqe_reqtag(cmdiocb); 3238 } else { 3239 irsp = &rspiocb->iocb; 3240 tmo = irsp->ulpTimeout; 3241 iotag = irsp->ulpIoTag; 3242 } 3243 3244 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3245 "ELS cmd cmpl: status:x%x/x%x did:x%x", 3246 ulp_status, ulp_word4, did); 3247 3248 /* ELS cmd tag <ulpIoTag> completes */ 3249 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 3250 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n", 3251 iotag, ulp_status, ulp_word4, tmo); 3252 3253 /* Check to see if link went down during discovery */ 3254 lpfc_els_chk_latt(vport); 3255 3256 free_ndlp = cmdiocb->ndlp; 3257 3258 lpfc_els_free_iocb(phba, cmdiocb); 3259 lpfc_nlp_put(free_ndlp); 3260 } 3261 3262 /** 3263 * lpfc_reg_fab_ctrl_node - RPI register the fabric controller node. 3264 * @vport: pointer to lpfc_vport data structure. 3265 * @fc_ndlp: pointer to the fabric controller (0xfffffd) node. 3266 * 3267 * This routine registers the rpi assigned to the fabric controller 3268 * NPort_ID (0xfffffd) with the port and moves the node to UNMAPPED 3269 * state triggering a registration with the SCSI transport. 3270 * 3271 * This routine is single out because the fabric controller node 3272 * does not receive a PLOGI. This routine is consumed by the 3273 * SCR and RDF ELS commands. Callers are expected to qualify 3274 * with SLI4 first. 3275 **/ 3276 static int 3277 lpfc_reg_fab_ctrl_node(struct lpfc_vport *vport, struct lpfc_nodelist *fc_ndlp) 3278 { 3279 int rc = 0; 3280 struct lpfc_hba *phba = vport->phba; 3281 struct lpfc_nodelist *ns_ndlp; 3282 LPFC_MBOXQ_t *mbox; 3283 3284 if (fc_ndlp->nlp_flag & NLP_RPI_REGISTERED) 3285 return rc; 3286 3287 ns_ndlp = lpfc_findnode_did(vport, NameServer_DID); 3288 if (!ns_ndlp) 3289 return -ENODEV; 3290 3291 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3292 "0935 %s: Reg FC RPI x%x on FC DID x%x NSSte: x%x\n", 3293 __func__, fc_ndlp->nlp_rpi, fc_ndlp->nlp_DID, 3294 ns_ndlp->nlp_state); 3295 if (ns_ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 3296 return -ENODEV; 3297 3298 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3299 if (!mbox) { 3300 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3301 "0936 %s: no memory for reg_login " 3302 "Data: x%x x%x x%x x%x\n", __func__, 3303 fc_ndlp->nlp_DID, fc_ndlp->nlp_state, 3304 fc_ndlp->nlp_flag, fc_ndlp->nlp_rpi); 3305 return -ENOMEM; 3306 } 3307 rc = lpfc_reg_rpi(phba, vport->vpi, fc_ndlp->nlp_DID, 3308 (u8 *)&vport->fc_sparam, mbox, fc_ndlp->nlp_rpi); 3309 if (rc) { 3310 rc = -EACCES; 3311 goto out; 3312 } 3313 3314 fc_ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 3315 mbox->mbox_cmpl = lpfc_mbx_cmpl_fc_reg_login; 3316 mbox->ctx_ndlp = lpfc_nlp_get(fc_ndlp); 3317 if (!mbox->ctx_ndlp) { 3318 rc = -ENOMEM; 3319 goto out; 3320 } 3321 3322 mbox->vport = vport; 3323 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3324 if (rc == MBX_NOT_FINISHED) { 3325 rc = -ENODEV; 3326 lpfc_nlp_put(fc_ndlp); 3327 goto out; 3328 } 3329 /* Success path. Exit. */ 3330 lpfc_nlp_set_state(vport, fc_ndlp, 3331 NLP_STE_REG_LOGIN_ISSUE); 3332 return 0; 3333 3334 out: 3335 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 3336 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3337 "0938 %s: failed to format reg_login " 3338 "Data: x%x x%x x%x x%x\n", __func__, 3339 fc_ndlp->nlp_DID, fc_ndlp->nlp_state, 3340 fc_ndlp->nlp_flag, fc_ndlp->nlp_rpi); 3341 return rc; 3342 } 3343 3344 /** 3345 * lpfc_cmpl_els_disc_cmd - Completion callback function for Discovery ELS cmd 3346 * @phba: pointer to lpfc hba data structure. 3347 * @cmdiocb: pointer to lpfc command iocb data structure. 3348 * @rspiocb: pointer to lpfc response iocb data structure. 3349 * 3350 * This routine is a generic completion callback function for Discovery ELS cmd. 3351 * Currently used by the ELS command issuing routines for the ELS State Change 3352 * Request (SCR), lpfc_issue_els_scr() and the ELS RDF, lpfc_issue_els_rdf(). 3353 * These commands will be retried once only for ELS timeout errors. 3354 **/ 3355 static void 3356 lpfc_cmpl_els_disc_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 3357 struct lpfc_iocbq *rspiocb) 3358 { 3359 struct lpfc_vport *vport = cmdiocb->vport; 3360 IOCB_t *irsp; 3361 struct lpfc_els_rdf_rsp *prdf; 3362 struct lpfc_dmabuf *pcmd, *prsp; 3363 u32 *pdata; 3364 u32 cmd; 3365 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 3366 u32 ulp_status, ulp_word4, tmo, did, iotag; 3367 3368 ulp_status = get_job_ulpstatus(phba, rspiocb); 3369 ulp_word4 = get_job_word4(phba, rspiocb); 3370 did = get_job_els_rsp64_did(phba, cmdiocb); 3371 3372 if (phba->sli_rev == LPFC_SLI_REV4) { 3373 tmo = get_wqe_tmo(cmdiocb); 3374 iotag = get_wqe_reqtag(cmdiocb); 3375 } else { 3376 irsp = &rspiocb->iocb; 3377 tmo = irsp->ulpTimeout; 3378 iotag = irsp->ulpIoTag; 3379 } 3380 3381 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3382 "ELS cmd cmpl: status:x%x/x%x did:x%x", 3383 ulp_status, ulp_word4, did); 3384 3385 /* ELS cmd tag <ulpIoTag> completes */ 3386 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 3387 "0217 ELS cmd tag x%x completes Data: x%x x%x x%x x%x\n", 3388 iotag, ulp_status, ulp_word4, tmo, cmdiocb->retry); 3389 3390 pcmd = cmdiocb->cmd_dmabuf; 3391 if (!pcmd) 3392 goto out; 3393 3394 pdata = (u32 *)pcmd->virt; 3395 if (!pdata) 3396 goto out; 3397 cmd = *pdata; 3398 3399 /* Only 1 retry for ELS Timeout only */ 3400 if (ulp_status == IOSTAT_LOCAL_REJECT && 3401 ((ulp_word4 & IOERR_PARAM_MASK) == 3402 IOERR_SEQUENCE_TIMEOUT)) { 3403 cmdiocb->retry++; 3404 if (cmdiocb->retry <= 1) { 3405 switch (cmd) { 3406 case ELS_CMD_SCR: 3407 lpfc_issue_els_scr(vport, cmdiocb->retry); 3408 break; 3409 case ELS_CMD_EDC: 3410 lpfc_issue_els_edc(vport, cmdiocb->retry); 3411 break; 3412 case ELS_CMD_RDF: 3413 lpfc_issue_els_rdf(vport, cmdiocb->retry); 3414 break; 3415 } 3416 goto out; 3417 } 3418 phba->fc_stat.elsRetryExceeded++; 3419 } 3420 if (cmd == ELS_CMD_EDC) { 3421 /* must be called before checking uplStatus and returning */ 3422 lpfc_cmpl_els_edc(phba, cmdiocb, rspiocb); 3423 return; 3424 } 3425 if (ulp_status) { 3426 /* ELS discovery cmd completes with error */ 3427 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS | LOG_CGN_MGMT, 3428 "4203 ELS cmd x%x error: x%x x%X\n", cmd, 3429 ulp_status, ulp_word4); 3430 goto out; 3431 } 3432 3433 /* The RDF response doesn't have any impact on the running driver 3434 * but the notification descriptors are dumped here for support. 3435 */ 3436 if (cmd == ELS_CMD_RDF) { 3437 int i; 3438 3439 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 3440 if (!prsp) 3441 goto out; 3442 3443 prdf = (struct lpfc_els_rdf_rsp *)prsp->virt; 3444 if (!prdf) 3445 goto out; 3446 3447 for (i = 0; i < ELS_RDF_REG_TAG_CNT && 3448 i < be32_to_cpu(prdf->reg_d1.reg_desc.count); i++) 3449 lpfc_printf_vlog(vport, KERN_INFO, 3450 LOG_ELS | LOG_CGN_MGMT, 3451 "4677 Fabric RDF Notification Grant " 3452 "Data: 0x%08x Reg: %x %x\n", 3453 be32_to_cpu( 3454 prdf->reg_d1.desc_tags[i]), 3455 phba->cgn_reg_signal, 3456 phba->cgn_reg_fpin); 3457 } 3458 3459 out: 3460 /* Check to see if link went down during discovery */ 3461 lpfc_els_chk_latt(vport); 3462 lpfc_els_free_iocb(phba, cmdiocb); 3463 lpfc_nlp_put(ndlp); 3464 return; 3465 } 3466 3467 /** 3468 * lpfc_issue_els_scr - Issue a scr to an node on a vport 3469 * @vport: pointer to a host virtual N_Port data structure. 3470 * @retry: retry counter for the command IOCB. 3471 * 3472 * This routine issues a State Change Request (SCR) to a fabric node 3473 * on a @vport. The remote node is Fabric Controller (0xfffffd). It 3474 * first search the @vport node list to find the matching ndlp. If no such 3475 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An 3476 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb() 3477 * routine is invoked to send the SCR IOCB. 3478 * 3479 * Note that the ndlp reference count will be incremented by 1 for holding the 3480 * ndlp and the reference to ndlp will be stored into the ndlp field of 3481 * the IOCB for the completion callback function to the SCR ELS command. 3482 * 3483 * Return code 3484 * 0 - Successfully issued scr command 3485 * 1 - Failed to issue scr command 3486 **/ 3487 int 3488 lpfc_issue_els_scr(struct lpfc_vport *vport, uint8_t retry) 3489 { 3490 int rc = 0; 3491 struct lpfc_hba *phba = vport->phba; 3492 struct lpfc_iocbq *elsiocb; 3493 uint8_t *pcmd; 3494 uint16_t cmdsize; 3495 struct lpfc_nodelist *ndlp; 3496 3497 cmdsize = (sizeof(uint32_t) + sizeof(SCR)); 3498 3499 ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID); 3500 if (!ndlp) { 3501 ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID); 3502 if (!ndlp) 3503 return 1; 3504 lpfc_enqueue_node(vport, ndlp); 3505 } 3506 3507 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3508 ndlp->nlp_DID, ELS_CMD_SCR); 3509 if (!elsiocb) 3510 return 1; 3511 3512 if (phba->sli_rev == LPFC_SLI_REV4) { 3513 rc = lpfc_reg_fab_ctrl_node(vport, ndlp); 3514 if (rc) { 3515 lpfc_els_free_iocb(phba, elsiocb); 3516 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3517 "0937 %s: Failed to reg fc node, rc %d\n", 3518 __func__, rc); 3519 return 1; 3520 } 3521 } 3522 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 3523 3524 *((uint32_t *) (pcmd)) = ELS_CMD_SCR; 3525 pcmd += sizeof(uint32_t); 3526 3527 /* For SCR, remainder of payload is SCR parameter page */ 3528 memset(pcmd, 0, sizeof(SCR)); 3529 ((SCR *) pcmd)->Function = SCR_FUNC_FULL; 3530 3531 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3532 "Issue SCR: did:x%x", 3533 ndlp->nlp_DID, 0, 0); 3534 3535 phba->fc_stat.elsXmitSCR++; 3536 elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd; 3537 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3538 if (!elsiocb->ndlp) { 3539 lpfc_els_free_iocb(phba, elsiocb); 3540 return 1; 3541 } 3542 3543 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3544 "Issue SCR: did:x%x refcnt %d", 3545 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 3546 3547 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3548 if (rc == IOCB_ERROR) { 3549 lpfc_els_free_iocb(phba, elsiocb); 3550 lpfc_nlp_put(ndlp); 3551 return 1; 3552 } 3553 3554 return 0; 3555 } 3556 3557 /** 3558 * lpfc_issue_els_rscn - Issue an RSCN to the Fabric Controller (Fabric) 3559 * or the other nport (pt2pt). 3560 * @vport: pointer to a host virtual N_Port data structure. 3561 * @retry: number of retries to the command IOCB. 3562 * 3563 * This routine issues a RSCN to the Fabric Controller (DID 0xFFFFFD) 3564 * when connected to a fabric, or to the remote port when connected 3565 * in point-to-point mode. When sent to the Fabric Controller, it will 3566 * replay the RSCN to registered recipients. 3567 * 3568 * Note that the ndlp reference count will be incremented by 1 for holding the 3569 * ndlp and the reference to ndlp will be stored into the ndlp field of 3570 * the IOCB for the completion callback function to the RSCN ELS command. 3571 * 3572 * Return code 3573 * 0 - Successfully issued RSCN command 3574 * 1 - Failed to issue RSCN command 3575 **/ 3576 int 3577 lpfc_issue_els_rscn(struct lpfc_vport *vport, uint8_t retry) 3578 { 3579 int rc = 0; 3580 struct lpfc_hba *phba = vport->phba; 3581 struct lpfc_iocbq *elsiocb; 3582 struct lpfc_nodelist *ndlp; 3583 struct { 3584 struct fc_els_rscn rscn; 3585 struct fc_els_rscn_page portid; 3586 } *event; 3587 uint32_t nportid; 3588 uint16_t cmdsize = sizeof(*event); 3589 3590 /* Not supported for private loop */ 3591 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 3592 !(vport->fc_flag & FC_PUBLIC_LOOP)) 3593 return 1; 3594 3595 if (vport->fc_flag & FC_PT2PT) { 3596 /* find any mapped nport - that would be the other nport */ 3597 ndlp = lpfc_findnode_mapped(vport); 3598 if (!ndlp) 3599 return 1; 3600 } else { 3601 nportid = FC_FID_FCTRL; 3602 /* find the fabric controller node */ 3603 ndlp = lpfc_findnode_did(vport, nportid); 3604 if (!ndlp) { 3605 /* if one didn't exist, make one */ 3606 ndlp = lpfc_nlp_init(vport, nportid); 3607 if (!ndlp) 3608 return 1; 3609 lpfc_enqueue_node(vport, ndlp); 3610 } 3611 } 3612 3613 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3614 ndlp->nlp_DID, ELS_CMD_RSCN_XMT); 3615 3616 if (!elsiocb) 3617 return 1; 3618 3619 event = elsiocb->cmd_dmabuf->virt; 3620 3621 event->rscn.rscn_cmd = ELS_RSCN; 3622 event->rscn.rscn_page_len = sizeof(struct fc_els_rscn_page); 3623 event->rscn.rscn_plen = cpu_to_be16(cmdsize); 3624 3625 nportid = vport->fc_myDID; 3626 /* appears that page flags must be 0 for fabric to broadcast RSCN */ 3627 event->portid.rscn_page_flags = 0; 3628 event->portid.rscn_fid[0] = (nportid & 0x00FF0000) >> 16; 3629 event->portid.rscn_fid[1] = (nportid & 0x0000FF00) >> 8; 3630 event->portid.rscn_fid[2] = nportid & 0x000000FF; 3631 3632 phba->fc_stat.elsXmitRSCN++; 3633 elsiocb->cmd_cmpl = lpfc_cmpl_els_cmd; 3634 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3635 if (!elsiocb->ndlp) { 3636 lpfc_els_free_iocb(phba, elsiocb); 3637 return 1; 3638 } 3639 3640 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3641 "Issue RSCN: did:x%x", 3642 ndlp->nlp_DID, 0, 0); 3643 3644 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3645 if (rc == IOCB_ERROR) { 3646 lpfc_els_free_iocb(phba, elsiocb); 3647 lpfc_nlp_put(ndlp); 3648 return 1; 3649 } 3650 3651 return 0; 3652 } 3653 3654 /** 3655 * lpfc_issue_els_farpr - Issue a farp to an node on a vport 3656 * @vport: pointer to a host virtual N_Port data structure. 3657 * @nportid: N_Port identifier to the remote node. 3658 * @retry: number of retries to the command IOCB. 3659 * 3660 * This routine issues a Fibre Channel Address Resolution Response 3661 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid) 3662 * is passed into the function. It first search the @vport node list to find 3663 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created 3664 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the 3665 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command. 3666 * 3667 * Note that the ndlp reference count will be incremented by 1 for holding the 3668 * ndlp and the reference to ndlp will be stored into the ndlp field of 3669 * the IOCB for the completion callback function to the FARPR ELS command. 3670 * 3671 * Return code 3672 * 0 - Successfully issued farpr command 3673 * 1 - Failed to issue farpr command 3674 **/ 3675 static int 3676 lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) 3677 { 3678 int rc = 0; 3679 struct lpfc_hba *phba = vport->phba; 3680 struct lpfc_iocbq *elsiocb; 3681 FARP *fp; 3682 uint8_t *pcmd; 3683 uint32_t *lp; 3684 uint16_t cmdsize; 3685 struct lpfc_nodelist *ondlp; 3686 struct lpfc_nodelist *ndlp; 3687 3688 cmdsize = (sizeof(uint32_t) + sizeof(FARP)); 3689 3690 ndlp = lpfc_findnode_did(vport, nportid); 3691 if (!ndlp) { 3692 ndlp = lpfc_nlp_init(vport, nportid); 3693 if (!ndlp) 3694 return 1; 3695 lpfc_enqueue_node(vport, ndlp); 3696 } 3697 3698 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3699 ndlp->nlp_DID, ELS_CMD_FARPR); 3700 if (!elsiocb) 3701 return 1; 3702 3703 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 3704 3705 *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; 3706 pcmd += sizeof(uint32_t); 3707 3708 /* Fill in FARPR payload */ 3709 fp = (FARP *) (pcmd); 3710 memset(fp, 0, sizeof(FARP)); 3711 lp = (uint32_t *) pcmd; 3712 *lp++ = be32_to_cpu(nportid); 3713 *lp++ = be32_to_cpu(vport->fc_myDID); 3714 fp->Rflags = 0; 3715 fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); 3716 3717 memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)); 3718 memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 3719 ondlp = lpfc_findnode_did(vport, nportid); 3720 if (ondlp) { 3721 memcpy(&fp->OportName, &ondlp->nlp_portname, 3722 sizeof(struct lpfc_name)); 3723 memcpy(&fp->OnodeName, &ondlp->nlp_nodename, 3724 sizeof(struct lpfc_name)); 3725 } 3726 3727 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3728 "Issue FARPR: did:x%x", 3729 ndlp->nlp_DID, 0, 0); 3730 3731 phba->fc_stat.elsXmitFARPR++; 3732 elsiocb->cmd_cmpl = lpfc_cmpl_els_cmd; 3733 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3734 if (!elsiocb->ndlp) { 3735 lpfc_els_free_iocb(phba, elsiocb); 3736 return 1; 3737 } 3738 3739 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3740 if (rc == IOCB_ERROR) { 3741 /* The additional lpfc_nlp_put will cause the following 3742 * lpfc_els_free_iocb routine to trigger the release of 3743 * the node. 3744 */ 3745 lpfc_els_free_iocb(phba, elsiocb); 3746 lpfc_nlp_put(ndlp); 3747 return 1; 3748 } 3749 /* This will cause the callback-function lpfc_cmpl_els_cmd to 3750 * trigger the release of the node. 3751 */ 3752 /* Don't release reference count as RDF is likely outstanding */ 3753 return 0; 3754 } 3755 3756 /** 3757 * lpfc_issue_els_rdf - Register for diagnostic functions from the fabric. 3758 * @vport: pointer to a host virtual N_Port data structure. 3759 * @retry: retry counter for the command IOCB. 3760 * 3761 * This routine issues an ELS RDF to the Fabric Controller to register 3762 * for diagnostic functions. 3763 * 3764 * Note that the ndlp reference count will be incremented by 1 for holding the 3765 * ndlp and the reference to ndlp will be stored into the ndlp field of 3766 * the IOCB for the completion callback function to the RDF ELS command. 3767 * 3768 * Return code 3769 * 0 - Successfully issued rdf command 3770 * 1 - Failed to issue rdf command 3771 **/ 3772 int 3773 lpfc_issue_els_rdf(struct lpfc_vport *vport, uint8_t retry) 3774 { 3775 struct lpfc_hba *phba = vport->phba; 3776 struct lpfc_iocbq *elsiocb; 3777 struct lpfc_els_rdf_req *prdf; 3778 struct lpfc_nodelist *ndlp; 3779 uint16_t cmdsize; 3780 int rc; 3781 3782 cmdsize = sizeof(*prdf); 3783 3784 ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID); 3785 if (!ndlp) { 3786 ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID); 3787 if (!ndlp) 3788 return -ENODEV; 3789 lpfc_enqueue_node(vport, ndlp); 3790 } 3791 3792 /* RDF ELS is not required on an NPIV VN_Port. */ 3793 if (vport->port_type == LPFC_NPIV_PORT) 3794 return -EACCES; 3795 3796 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3797 ndlp->nlp_DID, ELS_CMD_RDF); 3798 if (!elsiocb) 3799 return -ENOMEM; 3800 3801 /* Configure the payload for the supported FPIN events. */ 3802 prdf = (struct lpfc_els_rdf_req *)elsiocb->cmd_dmabuf->virt; 3803 memset(prdf, 0, cmdsize); 3804 prdf->rdf.fpin_cmd = ELS_RDF; 3805 prdf->rdf.desc_len = cpu_to_be32(sizeof(struct lpfc_els_rdf_req) - 3806 sizeof(struct fc_els_rdf)); 3807 prdf->reg_d1.reg_desc.desc_tag = cpu_to_be32(ELS_DTAG_FPIN_REGISTER); 3808 prdf->reg_d1.reg_desc.desc_len = cpu_to_be32( 3809 FC_TLV_DESC_LENGTH_FROM_SZ(prdf->reg_d1)); 3810 prdf->reg_d1.reg_desc.count = cpu_to_be32(ELS_RDF_REG_TAG_CNT); 3811 prdf->reg_d1.desc_tags[0] = cpu_to_be32(ELS_DTAG_LNK_INTEGRITY); 3812 prdf->reg_d1.desc_tags[1] = cpu_to_be32(ELS_DTAG_DELIVERY); 3813 prdf->reg_d1.desc_tags[2] = cpu_to_be32(ELS_DTAG_PEER_CONGEST); 3814 prdf->reg_d1.desc_tags[3] = cpu_to_be32(ELS_DTAG_CONGESTION); 3815 3816 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 3817 "6444 Xmit RDF to remote NPORT x%x Reg: %x %x\n", 3818 ndlp->nlp_DID, phba->cgn_reg_signal, 3819 phba->cgn_reg_fpin); 3820 3821 phba->cgn_fpin_frequency = LPFC_FPIN_INIT_FREQ; 3822 elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd; 3823 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3824 if (!elsiocb->ndlp) { 3825 lpfc_els_free_iocb(phba, elsiocb); 3826 return -EIO; 3827 } 3828 3829 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3830 "Issue RDF: did:x%x refcnt %d", 3831 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 3832 3833 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3834 if (rc == IOCB_ERROR) { 3835 lpfc_els_free_iocb(phba, elsiocb); 3836 lpfc_nlp_put(ndlp); 3837 return -EIO; 3838 } 3839 return 0; 3840 } 3841 3842 /** 3843 * lpfc_els_rcv_rdf - Receive RDF ELS request from the fabric. 3844 * @vport: pointer to a host virtual N_Port data structure. 3845 * @cmdiocb: pointer to lpfc command iocb data structure. 3846 * @ndlp: pointer to a node-list data structure. 3847 * 3848 * A received RDF implies a possible change to fabric supported diagnostic 3849 * functions. This routine sends LS_ACC and then has the Nx_Port issue a new 3850 * RDF request to reregister for supported diagnostic functions. 3851 * 3852 * Return code 3853 * 0 - Success 3854 * -EIO - Failed to process received RDF 3855 **/ 3856 static int 3857 lpfc_els_rcv_rdf(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 3858 struct lpfc_nodelist *ndlp) 3859 { 3860 /* Send LS_ACC */ 3861 if (lpfc_els_rsp_acc(vport, ELS_CMD_RDF, cmdiocb, ndlp, NULL)) { 3862 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 3863 "1623 Failed to RDF_ACC from x%x for x%x\n", 3864 ndlp->nlp_DID, vport->fc_myDID); 3865 return -EIO; 3866 } 3867 3868 /* Issue new RDF for reregistering */ 3869 if (lpfc_issue_els_rdf(vport, 0)) { 3870 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 3871 "2623 Failed to re register RDF for x%x\n", 3872 vport->fc_myDID); 3873 return -EIO; 3874 } 3875 3876 return 0; 3877 } 3878 3879 /** 3880 * lpfc_least_capable_settings - helper function for EDC rsp processing 3881 * @phba: pointer to lpfc hba data structure. 3882 * @pcgd: pointer to congestion detection descriptor in EDC rsp. 3883 * 3884 * This helper routine determines the least capable setting for 3885 * congestion signals, signal freq, including scale, from the 3886 * congestion detection descriptor in the EDC rsp. The routine 3887 * sets @phba values in preparation for a set_featues mailbox. 3888 **/ 3889 static void 3890 lpfc_least_capable_settings(struct lpfc_hba *phba, 3891 struct fc_diag_cg_sig_desc *pcgd) 3892 { 3893 u32 rsp_sig_cap = 0, drv_sig_cap = 0; 3894 u32 rsp_sig_freq_cyc = 0, rsp_sig_freq_scale = 0; 3895 3896 /* Get rsp signal and frequency capabilities. */ 3897 rsp_sig_cap = be32_to_cpu(pcgd->xmt_signal_capability); 3898 rsp_sig_freq_cyc = be16_to_cpu(pcgd->xmt_signal_frequency.count); 3899 rsp_sig_freq_scale = be16_to_cpu(pcgd->xmt_signal_frequency.units); 3900 3901 /* If the Fport does not support signals. Set FPIN only */ 3902 if (rsp_sig_cap == EDC_CG_SIG_NOTSUPPORTED) 3903 goto out_no_support; 3904 3905 /* Apply the xmt scale to the xmt cycle to get the correct frequency. 3906 * Adapter default is 100 millisSeconds. Convert all xmt cycle values 3907 * to milliSeconds. 3908 */ 3909 switch (rsp_sig_freq_scale) { 3910 case EDC_CG_SIGFREQ_SEC: 3911 rsp_sig_freq_cyc *= MSEC_PER_SEC; 3912 break; 3913 case EDC_CG_SIGFREQ_MSEC: 3914 rsp_sig_freq_cyc = 1; 3915 break; 3916 default: 3917 goto out_no_support; 3918 } 3919 3920 /* Convenient shorthand. */ 3921 drv_sig_cap = phba->cgn_reg_signal; 3922 3923 /* Choose the least capable frequency. */ 3924 if (rsp_sig_freq_cyc > phba->cgn_sig_freq) 3925 phba->cgn_sig_freq = rsp_sig_freq_cyc; 3926 3927 /* Should be some common signals support. Settle on least capable 3928 * signal and adjust FPIN values. Initialize defaults to ease the 3929 * decision. 3930 */ 3931 phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM; 3932 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 3933 if (rsp_sig_cap == EDC_CG_SIG_WARN_ONLY && 3934 (drv_sig_cap == EDC_CG_SIG_WARN_ONLY || 3935 drv_sig_cap == EDC_CG_SIG_WARN_ALARM)) { 3936 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY; 3937 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN; 3938 } 3939 if (rsp_sig_cap == EDC_CG_SIG_WARN_ALARM) { 3940 if (drv_sig_cap == EDC_CG_SIG_WARN_ALARM) { 3941 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ALARM; 3942 phba->cgn_reg_fpin = LPFC_CGN_FPIN_NONE; 3943 } 3944 if (drv_sig_cap == EDC_CG_SIG_WARN_ONLY) { 3945 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY; 3946 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN; 3947 } 3948 } 3949 3950 /* We are NOT recording signal frequency in congestion info buffer */ 3951 return; 3952 3953 out_no_support: 3954 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 3955 phba->cgn_sig_freq = 0; 3956 phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN; 3957 } 3958 3959 DECLARE_ENUM2STR_LOOKUP(lpfc_get_tlv_dtag_nm, fc_ls_tlv_dtag, 3960 FC_LS_TLV_DTAG_INIT); 3961 3962 /** 3963 * lpfc_cmpl_els_edc - Completion callback function for EDC 3964 * @phba: pointer to lpfc hba data structure. 3965 * @cmdiocb: pointer to lpfc command iocb data structure. 3966 * @rspiocb: pointer to lpfc response iocb data structure. 3967 * 3968 * This routine is the completion callback function for issuing the Exchange 3969 * Diagnostic Capabilities (EDC) command. The driver issues an EDC to 3970 * notify the FPort of its Congestion and Link Fault capabilities. This 3971 * routine parses the FPort's response and decides on the least common 3972 * values applicable to both FPort and NPort for Warnings and Alarms that 3973 * are communicated via hardware signals. 3974 **/ 3975 static void 3976 lpfc_cmpl_els_edc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 3977 struct lpfc_iocbq *rspiocb) 3978 { 3979 IOCB_t *irsp_iocb; 3980 struct fc_els_edc_resp *edc_rsp; 3981 struct fc_tlv_desc *tlv; 3982 struct fc_diag_cg_sig_desc *pcgd; 3983 struct fc_diag_lnkflt_desc *plnkflt; 3984 struct lpfc_dmabuf *pcmd, *prsp; 3985 const char *dtag_nm; 3986 u32 *pdata, dtag; 3987 int desc_cnt = 0, bytes_remain; 3988 bool rcv_cap_desc = false; 3989 struct lpfc_nodelist *ndlp; 3990 u32 ulp_status, ulp_word4, tmo, did, iotag; 3991 3992 ndlp = cmdiocb->ndlp; 3993 3994 ulp_status = get_job_ulpstatus(phba, rspiocb); 3995 ulp_word4 = get_job_word4(phba, rspiocb); 3996 did = get_job_els_rsp64_did(phba, rspiocb); 3997 3998 if (phba->sli_rev == LPFC_SLI_REV4) { 3999 tmo = get_wqe_tmo(rspiocb); 4000 iotag = get_wqe_reqtag(rspiocb); 4001 } else { 4002 irsp_iocb = &rspiocb->iocb; 4003 tmo = irsp_iocb->ulpTimeout; 4004 iotag = irsp_iocb->ulpIoTag; 4005 } 4006 4007 lpfc_debugfs_disc_trc(phba->pport, LPFC_DISC_TRC_ELS_CMD, 4008 "EDC cmpl: status:x%x/x%x did:x%x", 4009 ulp_status, ulp_word4, did); 4010 4011 /* ELS cmd tag <ulpIoTag> completes */ 4012 lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 4013 "4201 EDC cmd tag x%x completes Data: x%x x%x x%x\n", 4014 iotag, ulp_status, ulp_word4, tmo); 4015 4016 pcmd = cmdiocb->cmd_dmabuf; 4017 if (!pcmd) 4018 goto out; 4019 4020 pdata = (u32 *)pcmd->virt; 4021 if (!pdata) 4022 goto out; 4023 4024 /* Need to clear signal values, send features MB and RDF with FPIN. */ 4025 if (ulp_status) 4026 goto out; 4027 4028 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 4029 if (!prsp) 4030 goto out; 4031 4032 edc_rsp = prsp->virt; 4033 if (!edc_rsp) 4034 goto out; 4035 4036 /* ELS cmd tag <ulpIoTag> completes */ 4037 lpfc_printf_log(phba, KERN_INFO, 4038 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 4039 "4676 Fabric EDC Rsp: " 4040 "0x%02x, 0x%08x\n", 4041 edc_rsp->acc_hdr.la_cmd, 4042 be32_to_cpu(edc_rsp->desc_list_len)); 4043 4044 /* 4045 * Payload length in bytes is the response descriptor list 4046 * length minus the 12 bytes of Link Service Request 4047 * Information descriptor in the reply. 4048 */ 4049 bytes_remain = be32_to_cpu(edc_rsp->desc_list_len) - 4050 sizeof(struct fc_els_lsri_desc); 4051 if (bytes_remain <= 0) 4052 goto out; 4053 4054 tlv = edc_rsp->desc; 4055 4056 /* 4057 * cycle through EDC diagnostic descriptors to find the 4058 * congestion signaling capability descriptor 4059 */ 4060 while (bytes_remain) { 4061 if (bytes_remain < FC_TLV_DESC_HDR_SZ) { 4062 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 4063 "6461 Truncated TLV hdr on " 4064 "Diagnostic descriptor[%d]\n", 4065 desc_cnt); 4066 goto out; 4067 } 4068 4069 dtag = be32_to_cpu(tlv->desc_tag); 4070 switch (dtag) { 4071 case ELS_DTAG_LNK_FAULT_CAP: 4072 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 4073 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 4074 sizeof(struct fc_diag_lnkflt_desc)) { 4075 lpfc_printf_log(phba, KERN_WARNING, 4076 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 4077 "6462 Truncated Link Fault Diagnostic " 4078 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 4079 desc_cnt, bytes_remain, 4080 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 4081 sizeof(struct fc_diag_lnkflt_desc)); 4082 goto out; 4083 } 4084 plnkflt = (struct fc_diag_lnkflt_desc *)tlv; 4085 lpfc_printf_log(phba, KERN_INFO, 4086 LOG_ELS | LOG_LDS_EVENT, 4087 "4617 Link Fault Desc Data: 0x%08x 0x%08x " 4088 "0x%08x 0x%08x 0x%08x\n", 4089 be32_to_cpu(plnkflt->desc_tag), 4090 be32_to_cpu(plnkflt->desc_len), 4091 be32_to_cpu( 4092 plnkflt->degrade_activate_threshold), 4093 be32_to_cpu( 4094 plnkflt->degrade_deactivate_threshold), 4095 be32_to_cpu(plnkflt->fec_degrade_interval)); 4096 break; 4097 case ELS_DTAG_CG_SIGNAL_CAP: 4098 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 4099 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 4100 sizeof(struct fc_diag_cg_sig_desc)) { 4101 lpfc_printf_log( 4102 phba, KERN_WARNING, LOG_CGN_MGMT, 4103 "6463 Truncated Cgn Signal Diagnostic " 4104 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 4105 desc_cnt, bytes_remain, 4106 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 4107 sizeof(struct fc_diag_cg_sig_desc)); 4108 goto out; 4109 } 4110 4111 pcgd = (struct fc_diag_cg_sig_desc *)tlv; 4112 lpfc_printf_log( 4113 phba, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 4114 "4616 CGN Desc Data: 0x%08x 0x%08x " 4115 "0x%08x 0x%04x 0x%04x 0x%08x 0x%04x 0x%04x\n", 4116 be32_to_cpu(pcgd->desc_tag), 4117 be32_to_cpu(pcgd->desc_len), 4118 be32_to_cpu(pcgd->xmt_signal_capability), 4119 be16_to_cpu(pcgd->xmt_signal_frequency.count), 4120 be16_to_cpu(pcgd->xmt_signal_frequency.units), 4121 be32_to_cpu(pcgd->rcv_signal_capability), 4122 be16_to_cpu(pcgd->rcv_signal_frequency.count), 4123 be16_to_cpu(pcgd->rcv_signal_frequency.units)); 4124 4125 /* Compare driver and Fport capabilities and choose 4126 * least common. 4127 */ 4128 lpfc_least_capable_settings(phba, pcgd); 4129 rcv_cap_desc = true; 4130 break; 4131 default: 4132 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 4133 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 4134 "4919 unknown Diagnostic " 4135 "Descriptor[%d]: tag x%x (%s)\n", 4136 desc_cnt, dtag, dtag_nm); 4137 } 4138 4139 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv); 4140 tlv = fc_tlv_next_desc(tlv); 4141 desc_cnt++; 4142 } 4143 4144 out: 4145 if (!rcv_cap_desc) { 4146 phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN; 4147 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 4148 phba->cgn_sig_freq = 0; 4149 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_CGN_MGMT, 4150 "4202 EDC rsp error - sending RDF " 4151 "for FPIN only.\n"); 4152 } 4153 4154 lpfc_config_cgn_signal(phba); 4155 4156 /* Check to see if link went down during discovery */ 4157 lpfc_els_chk_latt(phba->pport); 4158 lpfc_debugfs_disc_trc(phba->pport, LPFC_DISC_TRC_ELS_CMD, 4159 "EDC Cmpl: did:x%x refcnt %d", 4160 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 4161 lpfc_els_free_iocb(phba, cmdiocb); 4162 lpfc_nlp_put(ndlp); 4163 } 4164 4165 static void 4166 lpfc_format_edc_lft_desc(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 4167 { 4168 struct fc_diag_lnkflt_desc *lft = (struct fc_diag_lnkflt_desc *)tlv; 4169 4170 lft->desc_tag = cpu_to_be32(ELS_DTAG_LNK_FAULT_CAP); 4171 lft->desc_len = cpu_to_be32( 4172 FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_diag_lnkflt_desc)); 4173 4174 lft->degrade_activate_threshold = 4175 cpu_to_be32(phba->degrade_activate_threshold); 4176 lft->degrade_deactivate_threshold = 4177 cpu_to_be32(phba->degrade_deactivate_threshold); 4178 lft->fec_degrade_interval = cpu_to_be32(phba->fec_degrade_interval); 4179 } 4180 4181 static void 4182 lpfc_format_edc_cgn_desc(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 4183 { 4184 struct fc_diag_cg_sig_desc *cgd = (struct fc_diag_cg_sig_desc *)tlv; 4185 4186 /* We are assuming cgd was zero'ed before calling this routine */ 4187 4188 /* Configure the congestion detection capability */ 4189 cgd->desc_tag = cpu_to_be32(ELS_DTAG_CG_SIGNAL_CAP); 4190 4191 /* Descriptor len doesn't include the tag or len fields. */ 4192 cgd->desc_len = cpu_to_be32( 4193 FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_diag_cg_sig_desc)); 4194 4195 /* xmt_signal_capability already set to EDC_CG_SIG_NOTSUPPORTED. 4196 * xmt_signal_frequency.count already set to 0. 4197 * xmt_signal_frequency.units already set to 0. 4198 */ 4199 4200 if (phba->cmf_active_mode == LPFC_CFG_OFF) { 4201 /* rcv_signal_capability already set to EDC_CG_SIG_NOTSUPPORTED. 4202 * rcv_signal_frequency.count already set to 0. 4203 * rcv_signal_frequency.units already set to 0. 4204 */ 4205 phba->cgn_sig_freq = 0; 4206 return; 4207 } 4208 switch (phba->cgn_reg_signal) { 4209 case EDC_CG_SIG_WARN_ONLY: 4210 cgd->rcv_signal_capability = cpu_to_be32(EDC_CG_SIG_WARN_ONLY); 4211 break; 4212 case EDC_CG_SIG_WARN_ALARM: 4213 cgd->rcv_signal_capability = cpu_to_be32(EDC_CG_SIG_WARN_ALARM); 4214 break; 4215 default: 4216 /* rcv_signal_capability left 0 thus no support */ 4217 break; 4218 } 4219 4220 /* We start negotiation with lpfc_fabric_cgn_frequency, after 4221 * the completion we settle on the higher frequency. 4222 */ 4223 cgd->rcv_signal_frequency.count = 4224 cpu_to_be16(lpfc_fabric_cgn_frequency); 4225 cgd->rcv_signal_frequency.units = 4226 cpu_to_be16(EDC_CG_SIGFREQ_MSEC); 4227 } 4228 4229 static bool 4230 lpfc_link_is_lds_capable(struct lpfc_hba *phba) 4231 { 4232 if (!(phba->lmt & LMT_64Gb)) 4233 return false; 4234 if (phba->sli_rev != LPFC_SLI_REV4) 4235 return false; 4236 4237 if (phba->sli4_hba.conf_trunk) { 4238 if (phba->trunk_link.phy_lnk_speed == LPFC_USER_LINK_SPEED_64G) 4239 return true; 4240 } else if (phba->fc_linkspeed == LPFC_LINK_SPEED_64GHZ) { 4241 return true; 4242 } 4243 return false; 4244 } 4245 4246 /** 4247 * lpfc_issue_els_edc - Exchange Diagnostic Capabilities with the fabric. 4248 * @vport: pointer to a host virtual N_Port data structure. 4249 * @retry: retry counter for the command iocb. 4250 * 4251 * This routine issues an ELS EDC to the F-Port Controller to communicate 4252 * this N_Port's support of hardware signals in its Congestion 4253 * Capabilities Descriptor. 4254 * 4255 * Note: This routine does not check if one or more signals are 4256 * set in the cgn_reg_signal parameter. The caller makes the 4257 * decision to enforce cgn_reg_signal as nonzero or zero depending 4258 * on the conditions. During Fabric requests, the driver 4259 * requires cgn_reg_signals to be nonzero. But a dynamic request 4260 * to set the congestion mode to OFF from Monitor or Manage 4261 * would correctly issue an EDC with no signals enabled to 4262 * turn off switch functionality and then update the FW. 4263 * 4264 * Return code 4265 * 0 - Successfully issued edc command 4266 * 1 - Failed to issue edc command 4267 **/ 4268 int 4269 lpfc_issue_els_edc(struct lpfc_vport *vport, uint8_t retry) 4270 { 4271 struct lpfc_hba *phba = vport->phba; 4272 struct lpfc_iocbq *elsiocb; 4273 struct fc_els_edc *edc_req; 4274 struct fc_tlv_desc *tlv; 4275 u16 cmdsize; 4276 struct lpfc_nodelist *ndlp; 4277 u8 *pcmd = NULL; 4278 u32 cgn_desc_size, lft_desc_size; 4279 int rc; 4280 4281 if (vport->port_type == LPFC_NPIV_PORT) 4282 return -EACCES; 4283 4284 ndlp = lpfc_findnode_did(vport, Fabric_DID); 4285 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 4286 return -ENODEV; 4287 4288 cgn_desc_size = (phba->cgn_init_reg_signal) ? 4289 sizeof(struct fc_diag_cg_sig_desc) : 0; 4290 lft_desc_size = (lpfc_link_is_lds_capable(phba)) ? 4291 sizeof(struct fc_diag_lnkflt_desc) : 0; 4292 cmdsize = cgn_desc_size + lft_desc_size; 4293 4294 /* Skip EDC if no applicable descriptors */ 4295 if (!cmdsize) 4296 goto try_rdf; 4297 4298 cmdsize += sizeof(struct fc_els_edc); 4299 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 4300 ndlp->nlp_DID, ELS_CMD_EDC); 4301 if (!elsiocb) 4302 goto try_rdf; 4303 4304 /* Configure the payload for the supported Diagnostics capabilities. */ 4305 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 4306 memset(pcmd, 0, cmdsize); 4307 edc_req = (struct fc_els_edc *)pcmd; 4308 edc_req->desc_len = cpu_to_be32(cgn_desc_size + lft_desc_size); 4309 edc_req->edc_cmd = ELS_EDC; 4310 tlv = edc_req->desc; 4311 4312 if (cgn_desc_size) { 4313 lpfc_format_edc_cgn_desc(phba, tlv); 4314 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency; 4315 tlv = fc_tlv_next_desc(tlv); 4316 } 4317 4318 if (lft_desc_size) 4319 lpfc_format_edc_lft_desc(phba, tlv); 4320 4321 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 4322 "4623 Xmit EDC to remote " 4323 "NPORT x%x reg_sig x%x reg_fpin:x%x\n", 4324 ndlp->nlp_DID, phba->cgn_reg_signal, 4325 phba->cgn_reg_fpin); 4326 4327 elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd; 4328 elsiocb->ndlp = lpfc_nlp_get(ndlp); 4329 if (!elsiocb->ndlp) { 4330 lpfc_els_free_iocb(phba, elsiocb); 4331 return -EIO; 4332 } 4333 4334 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4335 "Issue EDC: did:x%x refcnt %d", 4336 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 4337 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 4338 if (rc == IOCB_ERROR) { 4339 /* The additional lpfc_nlp_put will cause the following 4340 * lpfc_els_free_iocb routine to trigger the rlease of 4341 * the node. 4342 */ 4343 lpfc_els_free_iocb(phba, elsiocb); 4344 lpfc_nlp_put(ndlp); 4345 goto try_rdf; 4346 } 4347 return 0; 4348 try_rdf: 4349 phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM; 4350 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 4351 rc = lpfc_issue_els_rdf(vport, 0); 4352 return rc; 4353 } 4354 4355 /** 4356 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry 4357 * @vport: pointer to a host virtual N_Port data structure. 4358 * @nlp: pointer to a node-list data structure. 4359 * 4360 * This routine cancels the timer with a delayed IOCB-command retry for 4361 * a @vport's @ndlp. It stops the timer for the delayed function retrial and 4362 * removes the ELS retry event if it presents. In addition, if the 4363 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB 4364 * commands are sent for the @vport's nodes that require issuing discovery 4365 * ADISC. 4366 **/ 4367 void 4368 lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) 4369 { 4370 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4371 struct lpfc_work_evt *evtp; 4372 4373 if (!(nlp->nlp_flag & NLP_DELAY_TMO)) 4374 return; 4375 spin_lock_irq(&nlp->lock); 4376 nlp->nlp_flag &= ~NLP_DELAY_TMO; 4377 spin_unlock_irq(&nlp->lock); 4378 del_timer_sync(&nlp->nlp_delayfunc); 4379 nlp->nlp_last_elscmd = 0; 4380 if (!list_empty(&nlp->els_retry_evt.evt_listp)) { 4381 list_del_init(&nlp->els_retry_evt.evt_listp); 4382 /* Decrement nlp reference count held for the delayed retry */ 4383 evtp = &nlp->els_retry_evt; 4384 lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1); 4385 } 4386 if (nlp->nlp_flag & NLP_NPR_2B_DISC) { 4387 spin_lock_irq(&nlp->lock); 4388 nlp->nlp_flag &= ~NLP_NPR_2B_DISC; 4389 spin_unlock_irq(&nlp->lock); 4390 if (vport->num_disc_nodes) { 4391 if (vport->port_state < LPFC_VPORT_READY) { 4392 /* Check if there are more ADISCs to be sent */ 4393 lpfc_more_adisc(vport); 4394 } else { 4395 /* Check if there are more PLOGIs to be sent */ 4396 lpfc_more_plogi(vport); 4397 if (vport->num_disc_nodes == 0) { 4398 spin_lock_irq(shost->host_lock); 4399 vport->fc_flag &= ~FC_NDISC_ACTIVE; 4400 spin_unlock_irq(shost->host_lock); 4401 lpfc_can_disctmo(vport); 4402 lpfc_end_rscn(vport); 4403 } 4404 } 4405 } 4406 } 4407 return; 4408 } 4409 4410 /** 4411 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer 4412 * @t: pointer to the timer function associated data (ndlp). 4413 * 4414 * This routine is invoked by the ndlp delayed-function timer to check 4415 * whether there is any pending ELS retry event(s) with the node. If not, it 4416 * simply returns. Otherwise, if there is at least one ELS delayed event, it 4417 * adds the delayed events to the HBA work list and invokes the 4418 * lpfc_worker_wake_up() routine to wake up worker thread to process the 4419 * event. Note that lpfc_nlp_get() is called before posting the event to 4420 * the work list to hold reference count of ndlp so that it guarantees the 4421 * reference to ndlp will still be available when the worker thread gets 4422 * to the event associated with the ndlp. 4423 **/ 4424 void 4425 lpfc_els_retry_delay(struct timer_list *t) 4426 { 4427 struct lpfc_nodelist *ndlp = from_timer(ndlp, t, nlp_delayfunc); 4428 struct lpfc_vport *vport = ndlp->vport; 4429 struct lpfc_hba *phba = vport->phba; 4430 unsigned long flags; 4431 struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; 4432 4433 spin_lock_irqsave(&phba->hbalock, flags); 4434 if (!list_empty(&evtp->evt_listp)) { 4435 spin_unlock_irqrestore(&phba->hbalock, flags); 4436 return; 4437 } 4438 4439 /* We need to hold the node by incrementing the reference 4440 * count until the queued work is done 4441 */ 4442 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 4443 if (evtp->evt_arg1) { 4444 evtp->evt = LPFC_EVT_ELS_RETRY; 4445 list_add_tail(&evtp->evt_listp, &phba->work_list); 4446 lpfc_worker_wake_up(phba); 4447 } 4448 spin_unlock_irqrestore(&phba->hbalock, flags); 4449 return; 4450 } 4451 4452 /** 4453 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function 4454 * @ndlp: pointer to a node-list data structure. 4455 * 4456 * This routine is the worker-thread handler for processing the @ndlp delayed 4457 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves 4458 * the last ELS command from the associated ndlp and invokes the proper ELS 4459 * function according to the delayed ELS command to retry the command. 4460 **/ 4461 void 4462 lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) 4463 { 4464 struct lpfc_vport *vport = ndlp->vport; 4465 uint32_t cmd, retry; 4466 4467 spin_lock_irq(&ndlp->lock); 4468 cmd = ndlp->nlp_last_elscmd; 4469 ndlp->nlp_last_elscmd = 0; 4470 4471 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 4472 spin_unlock_irq(&ndlp->lock); 4473 return; 4474 } 4475 4476 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 4477 spin_unlock_irq(&ndlp->lock); 4478 /* 4479 * If a discovery event readded nlp_delayfunc after timer 4480 * firing and before processing the timer, cancel the 4481 * nlp_delayfunc. 4482 */ 4483 del_timer_sync(&ndlp->nlp_delayfunc); 4484 retry = ndlp->nlp_retry; 4485 ndlp->nlp_retry = 0; 4486 4487 switch (cmd) { 4488 case ELS_CMD_FLOGI: 4489 lpfc_issue_els_flogi(vport, ndlp, retry); 4490 break; 4491 case ELS_CMD_PLOGI: 4492 if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) { 4493 ndlp->nlp_prev_state = ndlp->nlp_state; 4494 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 4495 } 4496 break; 4497 case ELS_CMD_ADISC: 4498 if (!lpfc_issue_els_adisc(vport, ndlp, retry)) { 4499 ndlp->nlp_prev_state = ndlp->nlp_state; 4500 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 4501 } 4502 break; 4503 case ELS_CMD_PRLI: 4504 case ELS_CMD_NVMEPRLI: 4505 if (!lpfc_issue_els_prli(vport, ndlp, retry)) { 4506 ndlp->nlp_prev_state = ndlp->nlp_state; 4507 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 4508 } 4509 break; 4510 case ELS_CMD_LOGO: 4511 if (!lpfc_issue_els_logo(vport, ndlp, retry)) { 4512 ndlp->nlp_prev_state = ndlp->nlp_state; 4513 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); 4514 } 4515 break; 4516 case ELS_CMD_FDISC: 4517 if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)) 4518 lpfc_issue_els_fdisc(vport, ndlp, retry); 4519 break; 4520 } 4521 return; 4522 } 4523 4524 /** 4525 * lpfc_link_reset - Issue link reset 4526 * @vport: pointer to a virtual N_Port data structure. 4527 * 4528 * This routine performs link reset by sending INIT_LINK mailbox command. 4529 * For SLI-3 adapter, link attention interrupt is enabled before issuing 4530 * INIT_LINK mailbox command. 4531 * 4532 * Return code 4533 * 0 - Link reset initiated successfully 4534 * 1 - Failed to initiate link reset 4535 **/ 4536 int 4537 lpfc_link_reset(struct lpfc_vport *vport) 4538 { 4539 struct lpfc_hba *phba = vport->phba; 4540 LPFC_MBOXQ_t *mbox; 4541 uint32_t control; 4542 int rc; 4543 4544 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 4545 "2851 Attempt link reset\n"); 4546 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4547 if (!mbox) { 4548 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4549 "2852 Failed to allocate mbox memory"); 4550 return 1; 4551 } 4552 4553 /* Enable Link attention interrupts */ 4554 if (phba->sli_rev <= LPFC_SLI_REV3) { 4555 spin_lock_irq(&phba->hbalock); 4556 phba->sli.sli_flag |= LPFC_PROCESS_LA; 4557 control = readl(phba->HCregaddr); 4558 control |= HC_LAINT_ENA; 4559 writel(control, phba->HCregaddr); 4560 readl(phba->HCregaddr); /* flush */ 4561 spin_unlock_irq(&phba->hbalock); 4562 } 4563 4564 lpfc_init_link(phba, mbox, phba->cfg_topology, 4565 phba->cfg_link_speed); 4566 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4567 mbox->vport = vport; 4568 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4569 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 4570 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4571 "2853 Failed to issue INIT_LINK " 4572 "mbox command, rc:x%x\n", rc); 4573 mempool_free(mbox, phba->mbox_mem_pool); 4574 return 1; 4575 } 4576 4577 return 0; 4578 } 4579 4580 /** 4581 * lpfc_els_retry - Make retry decision on an els command iocb 4582 * @phba: pointer to lpfc hba data structure. 4583 * @cmdiocb: pointer to lpfc command iocb data structure. 4584 * @rspiocb: pointer to lpfc response iocb data structure. 4585 * 4586 * This routine makes a retry decision on an ELS command IOCB, which has 4587 * failed. The following ELS IOCBs use this function for retrying the command 4588 * when previously issued command responsed with error status: FLOGI, PLOGI, 4589 * PRLI, ADISC and FDISC. Based on the ELS command type and the 4590 * returned error status, it makes the decision whether a retry shall be 4591 * issued for the command, and whether a retry shall be made immediately or 4592 * delayed. In the former case, the corresponding ELS command issuing-function 4593 * is called to retry the command. In the later case, the ELS command shall 4594 * be posted to the ndlp delayed event and delayed function timer set to the 4595 * ndlp for the delayed command issusing. 4596 * 4597 * Return code 4598 * 0 - No retry of els command is made 4599 * 1 - Immediate or delayed retry of els command is made 4600 **/ 4601 static int 4602 lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 4603 struct lpfc_iocbq *rspiocb) 4604 { 4605 struct lpfc_vport *vport = cmdiocb->vport; 4606 union lpfc_wqe128 *irsp = &rspiocb->wqe; 4607 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 4608 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 4609 uint32_t *elscmd; 4610 struct ls_rjt stat; 4611 int retry = 0, maxretry = lpfc_max_els_tries, delay = 0; 4612 int logerr = 0; 4613 uint32_t cmd = 0; 4614 uint32_t did; 4615 int link_reset = 0, rc; 4616 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 4617 u32 ulp_word4 = get_job_word4(phba, rspiocb); 4618 4619 4620 /* Note: cmd_dmabuf may be 0 for internal driver abort 4621 * of delays ELS command. 4622 */ 4623 4624 if (pcmd && pcmd->virt) { 4625 elscmd = (uint32_t *) (pcmd->virt); 4626 cmd = *elscmd++; 4627 } 4628 4629 if (ndlp) 4630 did = ndlp->nlp_DID; 4631 else { 4632 /* We should only hit this case for retrying PLOGI */ 4633 did = get_job_els_rsp64_did(phba, rspiocb); 4634 ndlp = lpfc_findnode_did(vport, did); 4635 if (!ndlp && (cmd != ELS_CMD_PLOGI)) 4636 return 0; 4637 } 4638 4639 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4640 "Retry ELS: wd7:x%x wd4:x%x did:x%x", 4641 *(((uint32_t *)irsp) + 7), ulp_word4, did); 4642 4643 switch (ulp_status) { 4644 case IOSTAT_FCP_RSP_ERROR: 4645 break; 4646 case IOSTAT_REMOTE_STOP: 4647 if (phba->sli_rev == LPFC_SLI_REV4) { 4648 /* This IO was aborted by the target, we don't 4649 * know the rxid and because we did not send the 4650 * ABTS we cannot generate and RRQ. 4651 */ 4652 lpfc_set_rrq_active(phba, ndlp, 4653 cmdiocb->sli4_lxritag, 0, 0); 4654 } 4655 break; 4656 case IOSTAT_LOCAL_REJECT: 4657 switch ((ulp_word4 & IOERR_PARAM_MASK)) { 4658 case IOERR_LOOP_OPEN_FAILURE: 4659 if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) 4660 delay = 1000; 4661 retry = 1; 4662 break; 4663 4664 case IOERR_ILLEGAL_COMMAND: 4665 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4666 "0124 Retry illegal cmd x%x " 4667 "retry:x%x delay:x%x\n", 4668 cmd, cmdiocb->retry, delay); 4669 retry = 1; 4670 /* All command's retry policy */ 4671 maxretry = 8; 4672 if (cmdiocb->retry > 2) 4673 delay = 1000; 4674 break; 4675 4676 case IOERR_NO_RESOURCES: 4677 logerr = 1; /* HBA out of resources */ 4678 retry = 1; 4679 if (cmdiocb->retry > 100) 4680 delay = 100; 4681 maxretry = 250; 4682 break; 4683 4684 case IOERR_ILLEGAL_FRAME: 4685 delay = 100; 4686 retry = 1; 4687 break; 4688 4689 case IOERR_INVALID_RPI: 4690 if (cmd == ELS_CMD_PLOGI && 4691 did == NameServer_DID) { 4692 /* Continue forever if plogi to */ 4693 /* the nameserver fails */ 4694 maxretry = 0; 4695 delay = 100; 4696 } else if (cmd == ELS_CMD_PRLI && 4697 ndlp->nlp_state != NLP_STE_PRLI_ISSUE) { 4698 /* State-command disagreement. The PRLI was 4699 * failed with an invalid rpi meaning there 4700 * some unexpected state change. Don't retry. 4701 */ 4702 maxretry = 0; 4703 retry = 0; 4704 break; 4705 } 4706 retry = 1; 4707 break; 4708 4709 case IOERR_SEQUENCE_TIMEOUT: 4710 if (cmd == ELS_CMD_PLOGI && 4711 did == NameServer_DID && 4712 (cmdiocb->retry + 1) == maxretry) { 4713 /* Reset the Link */ 4714 link_reset = 1; 4715 break; 4716 } 4717 retry = 1; 4718 delay = 100; 4719 break; 4720 case IOERR_SLI_ABORTED: 4721 /* Retry ELS PLOGI command? 4722 * Possibly the rport just wasn't ready. 4723 */ 4724 if (cmd == ELS_CMD_PLOGI) { 4725 /* No retry if state change */ 4726 if (ndlp && 4727 ndlp->nlp_state != NLP_STE_PLOGI_ISSUE) 4728 goto out_retry; 4729 retry = 1; 4730 maxretry = 2; 4731 } 4732 break; 4733 } 4734 break; 4735 4736 case IOSTAT_NPORT_RJT: 4737 case IOSTAT_FABRIC_RJT: 4738 if (ulp_word4 & RJT_UNAVAIL_TEMP) { 4739 retry = 1; 4740 break; 4741 } 4742 break; 4743 4744 case IOSTAT_NPORT_BSY: 4745 case IOSTAT_FABRIC_BSY: 4746 logerr = 1; /* Fabric / Remote NPort out of resources */ 4747 retry = 1; 4748 break; 4749 4750 case IOSTAT_LS_RJT: 4751 stat.un.ls_rjt_error_be = cpu_to_be32(ulp_word4); 4752 /* Added for Vendor specifc support 4753 * Just keep retrying for these Rsn / Exp codes 4754 */ 4755 if ((vport->fc_flag & FC_PT2PT) && 4756 cmd == ELS_CMD_NVMEPRLI) { 4757 switch (stat.un.b.lsRjtRsnCode) { 4758 case LSRJT_UNABLE_TPC: 4759 case LSRJT_INVALID_CMD: 4760 case LSRJT_LOGICAL_ERR: 4761 case LSRJT_CMD_UNSUPPORTED: 4762 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS, 4763 "0168 NVME PRLI LS_RJT " 4764 "reason %x port doesn't " 4765 "support NVME, disabling NVME\n", 4766 stat.un.b.lsRjtRsnCode); 4767 retry = 0; 4768 vport->fc_flag |= FC_PT2PT_NO_NVME; 4769 goto out_retry; 4770 } 4771 } 4772 switch (stat.un.b.lsRjtRsnCode) { 4773 case LSRJT_UNABLE_TPC: 4774 /* Special case for PRLI LS_RJTs. Recall that lpfc 4775 * uses a single routine to issue both PRLI FC4 types. 4776 * If the PRLI is rejected because that FC4 type 4777 * isn't really supported, don't retry and cause 4778 * multiple transport registrations. Otherwise, parse 4779 * the reason code/reason code explanation and take the 4780 * appropriate action. 4781 */ 4782 lpfc_printf_vlog(vport, KERN_INFO, 4783 LOG_DISCOVERY | LOG_ELS | LOG_NODE, 4784 "0153 ELS cmd x%x LS_RJT by x%x. " 4785 "RsnCode x%x RsnCodeExp x%x\n", 4786 cmd, did, stat.un.b.lsRjtRsnCode, 4787 stat.un.b.lsRjtRsnCodeExp); 4788 4789 switch (stat.un.b.lsRjtRsnCodeExp) { 4790 case LSEXP_CANT_GIVE_DATA: 4791 case LSEXP_CMD_IN_PROGRESS: 4792 if (cmd == ELS_CMD_PLOGI) { 4793 delay = 1000; 4794 maxretry = 48; 4795 } 4796 retry = 1; 4797 break; 4798 case LSEXP_REQ_UNSUPPORTED: 4799 case LSEXP_NO_RSRC_ASSIGN: 4800 /* These explanation codes get no retry. */ 4801 if (cmd == ELS_CMD_PRLI || 4802 cmd == ELS_CMD_NVMEPRLI) 4803 break; 4804 fallthrough; 4805 default: 4806 /* Limit the delay and retry action to a limited 4807 * cmd set. There are other ELS commands where 4808 * a retry is not expected. 4809 */ 4810 if (cmd == ELS_CMD_PLOGI || 4811 cmd == ELS_CMD_PRLI || 4812 cmd == ELS_CMD_NVMEPRLI) { 4813 delay = 1000; 4814 maxretry = lpfc_max_els_tries + 1; 4815 retry = 1; 4816 } 4817 break; 4818 } 4819 4820 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 4821 (cmd == ELS_CMD_FDISC) && 4822 (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){ 4823 lpfc_printf_vlog(vport, KERN_ERR, 4824 LOG_TRACE_EVENT, 4825 "0125 FDISC Failed (x%x). " 4826 "Fabric out of resources\n", 4827 stat.un.lsRjtError); 4828 lpfc_vport_set_state(vport, 4829 FC_VPORT_NO_FABRIC_RSCS); 4830 } 4831 break; 4832 4833 case LSRJT_LOGICAL_BSY: 4834 if ((cmd == ELS_CMD_PLOGI) || 4835 (cmd == ELS_CMD_PRLI) || 4836 (cmd == ELS_CMD_NVMEPRLI)) { 4837 delay = 1000; 4838 maxretry = 48; 4839 } else if (cmd == ELS_CMD_FDISC) { 4840 /* FDISC retry policy */ 4841 maxretry = 48; 4842 if (cmdiocb->retry >= 32) 4843 delay = 1000; 4844 } 4845 retry = 1; 4846 break; 4847 4848 case LSRJT_LOGICAL_ERR: 4849 /* There are some cases where switches return this 4850 * error when they are not ready and should be returning 4851 * Logical Busy. We should delay every time. 4852 */ 4853 if (cmd == ELS_CMD_FDISC && 4854 stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) { 4855 maxretry = 3; 4856 delay = 1000; 4857 retry = 1; 4858 } else if (cmd == ELS_CMD_FLOGI && 4859 stat.un.b.lsRjtRsnCodeExp == 4860 LSEXP_NOTHING_MORE) { 4861 vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf; 4862 retry = 1; 4863 lpfc_printf_vlog(vport, KERN_ERR, 4864 LOG_TRACE_EVENT, 4865 "0820 FLOGI Failed (x%x). " 4866 "BBCredit Not Supported\n", 4867 stat.un.lsRjtError); 4868 } 4869 break; 4870 4871 case LSRJT_PROTOCOL_ERR: 4872 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 4873 (cmd == ELS_CMD_FDISC) && 4874 ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) || 4875 (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) 4876 ) { 4877 lpfc_printf_vlog(vport, KERN_ERR, 4878 LOG_TRACE_EVENT, 4879 "0122 FDISC Failed (x%x). " 4880 "Fabric Detected Bad WWN\n", 4881 stat.un.lsRjtError); 4882 lpfc_vport_set_state(vport, 4883 FC_VPORT_FABRIC_REJ_WWN); 4884 } 4885 break; 4886 case LSRJT_VENDOR_UNIQUE: 4887 if ((stat.un.b.vendorUnique == 0x45) && 4888 (cmd == ELS_CMD_FLOGI)) { 4889 goto out_retry; 4890 } 4891 break; 4892 case LSRJT_CMD_UNSUPPORTED: 4893 /* lpfc nvmet returns this type of LS_RJT when it 4894 * receives an FCP PRLI because lpfc nvmet only 4895 * support NVME. ELS request is terminated for FCP4 4896 * on this rport. 4897 */ 4898 if (stat.un.b.lsRjtRsnCodeExp == 4899 LSEXP_REQ_UNSUPPORTED) { 4900 if (cmd == ELS_CMD_PRLI) 4901 goto out_retry; 4902 } 4903 break; 4904 } 4905 break; 4906 4907 case IOSTAT_INTERMED_RSP: 4908 case IOSTAT_BA_RJT: 4909 break; 4910 4911 default: 4912 break; 4913 } 4914 4915 if (link_reset) { 4916 rc = lpfc_link_reset(vport); 4917 if (rc) { 4918 /* Do not give up. Retry PLOGI one more time and attempt 4919 * link reset if PLOGI fails again. 4920 */ 4921 retry = 1; 4922 delay = 100; 4923 goto out_retry; 4924 } 4925 return 1; 4926 } 4927 4928 if (did == FDMI_DID) 4929 retry = 1; 4930 4931 if ((cmd == ELS_CMD_FLOGI) && 4932 (phba->fc_topology != LPFC_TOPOLOGY_LOOP) && 4933 !lpfc_error_lost_link(vport, ulp_status, ulp_word4)) { 4934 /* FLOGI retry policy */ 4935 retry = 1; 4936 /* retry FLOGI forever */ 4937 if (phba->link_flag != LS_LOOPBACK_MODE) 4938 maxretry = 0; 4939 else 4940 maxretry = 2; 4941 4942 if (cmdiocb->retry >= 100) 4943 delay = 5000; 4944 else if (cmdiocb->retry >= 32) 4945 delay = 1000; 4946 } else if ((cmd == ELS_CMD_FDISC) && 4947 !lpfc_error_lost_link(vport, ulp_status, ulp_word4)) { 4948 /* retry FDISCs every second up to devloss */ 4949 retry = 1; 4950 maxretry = vport->cfg_devloss_tmo; 4951 delay = 1000; 4952 } 4953 4954 cmdiocb->retry++; 4955 if (maxretry && (cmdiocb->retry >= maxretry)) { 4956 phba->fc_stat.elsRetryExceeded++; 4957 retry = 0; 4958 } 4959 4960 if ((vport->load_flag & FC_UNLOADING) != 0) 4961 retry = 0; 4962 4963 out_retry: 4964 if (retry) { 4965 if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) { 4966 /* Stop retrying PLOGI and FDISC if in FCF discovery */ 4967 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4968 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 4969 "2849 Stop retry ELS command " 4970 "x%x to remote NPORT x%x, " 4971 "Data: x%x x%x\n", cmd, did, 4972 cmdiocb->retry, delay); 4973 return 0; 4974 } 4975 } 4976 4977 /* Retry ELS command <elsCmd> to remote NPORT <did> */ 4978 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 4979 "0107 Retry ELS command x%x to remote " 4980 "NPORT x%x Data: x%x x%x\n", 4981 cmd, did, cmdiocb->retry, delay); 4982 4983 if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) && 4984 ((ulp_status != IOSTAT_LOCAL_REJECT) || 4985 ((ulp_word4 & IOERR_PARAM_MASK) != 4986 IOERR_NO_RESOURCES))) { 4987 /* Don't reset timer for no resources */ 4988 4989 /* If discovery / RSCN timer is running, reset it */ 4990 if (timer_pending(&vport->fc_disctmo) || 4991 (vport->fc_flag & FC_RSCN_MODE)) 4992 lpfc_set_disctmo(vport); 4993 } 4994 4995 phba->fc_stat.elsXmitRetry++; 4996 if (ndlp && delay) { 4997 phba->fc_stat.elsDelayRetry++; 4998 ndlp->nlp_retry = cmdiocb->retry; 4999 5000 /* delay is specified in milliseconds */ 5001 mod_timer(&ndlp->nlp_delayfunc, 5002 jiffies + msecs_to_jiffies(delay)); 5003 spin_lock_irq(&ndlp->lock); 5004 ndlp->nlp_flag |= NLP_DELAY_TMO; 5005 spin_unlock_irq(&ndlp->lock); 5006 5007 ndlp->nlp_prev_state = ndlp->nlp_state; 5008 if ((cmd == ELS_CMD_PRLI) || 5009 (cmd == ELS_CMD_NVMEPRLI)) 5010 lpfc_nlp_set_state(vport, ndlp, 5011 NLP_STE_PRLI_ISSUE); 5012 else if (cmd != ELS_CMD_ADISC) 5013 lpfc_nlp_set_state(vport, ndlp, 5014 NLP_STE_NPR_NODE); 5015 ndlp->nlp_last_elscmd = cmd; 5016 5017 return 1; 5018 } 5019 switch (cmd) { 5020 case ELS_CMD_FLOGI: 5021 lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry); 5022 return 1; 5023 case ELS_CMD_FDISC: 5024 lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry); 5025 return 1; 5026 case ELS_CMD_PLOGI: 5027 if (ndlp) { 5028 ndlp->nlp_prev_state = ndlp->nlp_state; 5029 lpfc_nlp_set_state(vport, ndlp, 5030 NLP_STE_PLOGI_ISSUE); 5031 } 5032 lpfc_issue_els_plogi(vport, did, cmdiocb->retry); 5033 return 1; 5034 case ELS_CMD_ADISC: 5035 ndlp->nlp_prev_state = ndlp->nlp_state; 5036 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 5037 lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry); 5038 return 1; 5039 case ELS_CMD_PRLI: 5040 case ELS_CMD_NVMEPRLI: 5041 ndlp->nlp_prev_state = ndlp->nlp_state; 5042 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 5043 lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry); 5044 return 1; 5045 case ELS_CMD_LOGO: 5046 ndlp->nlp_prev_state = ndlp->nlp_state; 5047 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); 5048 lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry); 5049 return 1; 5050 } 5051 } 5052 /* No retry ELS command <elsCmd> to remote NPORT <did> */ 5053 if (logerr) { 5054 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5055 "0137 No retry ELS command x%x to remote " 5056 "NPORT x%x: Out of Resources: Error:x%x/%x\n", 5057 cmd, did, ulp_status, 5058 ulp_word4); 5059 } 5060 else { 5061 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5062 "0108 No retry ELS command x%x to remote " 5063 "NPORT x%x Retried:%d Error:x%x/%x\n", 5064 cmd, did, cmdiocb->retry, ulp_status, 5065 ulp_word4); 5066 } 5067 return 0; 5068 } 5069 5070 /** 5071 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb 5072 * @phba: pointer to lpfc hba data structure. 5073 * @buf_ptr1: pointer to the lpfc DMA buffer data structure. 5074 * 5075 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s) 5076 * associated with a command IOCB back to the lpfc DMA buffer pool. It first 5077 * checks to see whether there is a lpfc DMA buffer associated with the 5078 * response of the command IOCB. If so, it will be released before releasing 5079 * the lpfc DMA buffer associated with the IOCB itself. 5080 * 5081 * Return code 5082 * 0 - Successfully released lpfc DMA buffer (currently, always return 0) 5083 **/ 5084 static int 5085 lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1) 5086 { 5087 struct lpfc_dmabuf *buf_ptr; 5088 5089 /* Free the response before processing the command. */ 5090 if (!list_empty(&buf_ptr1->list)) { 5091 list_remove_head(&buf_ptr1->list, buf_ptr, 5092 struct lpfc_dmabuf, 5093 list); 5094 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 5095 kfree(buf_ptr); 5096 } 5097 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); 5098 kfree(buf_ptr1); 5099 return 0; 5100 } 5101 5102 /** 5103 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl 5104 * @phba: pointer to lpfc hba data structure. 5105 * @buf_ptr: pointer to the lpfc dma buffer data structure. 5106 * 5107 * This routine releases the lpfc Direct Memory Access (DMA) buffer 5108 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer 5109 * pool. 5110 * 5111 * Return code 5112 * 0 - Successfully released lpfc DMA buffer (currently, always return 0) 5113 **/ 5114 static int 5115 lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr) 5116 { 5117 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 5118 kfree(buf_ptr); 5119 return 0; 5120 } 5121 5122 /** 5123 * lpfc_els_free_iocb - Free a command iocb and its associated resources 5124 * @phba: pointer to lpfc hba data structure. 5125 * @elsiocb: pointer to lpfc els command iocb data structure. 5126 * 5127 * This routine frees a command IOCB and its associated resources. The 5128 * command IOCB data structure contains the reference to various associated 5129 * resources, these fields must be set to NULL if the associated reference 5130 * not present: 5131 * cmd_dmabuf - reference to cmd. 5132 * cmd_dmabuf->next - reference to rsp 5133 * rsp_dmabuf - unused 5134 * bpl_dmabuf - reference to bpl 5135 * 5136 * It first properly decrements the reference count held on ndlp for the 5137 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not 5138 * set, it invokes the lpfc_els_free_data() routine to release the Direct 5139 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it 5140 * adds the DMA buffer the @phba data structure for the delayed release. 5141 * If reference to the Buffer Pointer List (BPL) is present, the 5142 * lpfc_els_free_bpl() routine is invoked to release the DMA memory 5143 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is 5144 * invoked to release the IOCB data structure back to @phba IOCBQ list. 5145 * 5146 * Return code 5147 * 0 - Success (currently, always return 0) 5148 **/ 5149 int 5150 lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) 5151 { 5152 struct lpfc_dmabuf *buf_ptr, *buf_ptr1; 5153 5154 /* The I/O iocb is complete. Clear the node and first dmbuf */ 5155 elsiocb->ndlp = NULL; 5156 5157 /* cmd_dmabuf = cmd, cmd_dmabuf->next = rsp, bpl_dmabuf = bpl */ 5158 if (elsiocb->cmd_dmabuf) { 5159 if (elsiocb->cmd_flag & LPFC_DELAY_MEM_FREE) { 5160 /* Firmware could still be in progress of DMAing 5161 * payload, so don't free data buffer till after 5162 * a hbeat. 5163 */ 5164 elsiocb->cmd_flag &= ~LPFC_DELAY_MEM_FREE; 5165 buf_ptr = elsiocb->cmd_dmabuf; 5166 elsiocb->cmd_dmabuf = NULL; 5167 if (buf_ptr) { 5168 buf_ptr1 = NULL; 5169 spin_lock_irq(&phba->hbalock); 5170 if (!list_empty(&buf_ptr->list)) { 5171 list_remove_head(&buf_ptr->list, 5172 buf_ptr1, struct lpfc_dmabuf, 5173 list); 5174 INIT_LIST_HEAD(&buf_ptr1->list); 5175 list_add_tail(&buf_ptr1->list, 5176 &phba->elsbuf); 5177 phba->elsbuf_cnt++; 5178 } 5179 INIT_LIST_HEAD(&buf_ptr->list); 5180 list_add_tail(&buf_ptr->list, &phba->elsbuf); 5181 phba->elsbuf_cnt++; 5182 spin_unlock_irq(&phba->hbalock); 5183 } 5184 } else { 5185 buf_ptr1 = elsiocb->cmd_dmabuf; 5186 lpfc_els_free_data(phba, buf_ptr1); 5187 elsiocb->cmd_dmabuf = NULL; 5188 } 5189 } 5190 5191 if (elsiocb->bpl_dmabuf) { 5192 buf_ptr = elsiocb->bpl_dmabuf; 5193 lpfc_els_free_bpl(phba, buf_ptr); 5194 elsiocb->bpl_dmabuf = NULL; 5195 } 5196 lpfc_sli_release_iocbq(phba, elsiocb); 5197 return 0; 5198 } 5199 5200 /** 5201 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response 5202 * @phba: pointer to lpfc hba data structure. 5203 * @cmdiocb: pointer to lpfc command iocb data structure. 5204 * @rspiocb: pointer to lpfc response iocb data structure. 5205 * 5206 * This routine is the completion callback function to the Logout (LOGO) 5207 * Accept (ACC) Response ELS command. This routine is invoked to indicate 5208 * the completion of the LOGO process. If the node has transitioned to NPR, 5209 * this routine unregisters the RPI if it is still registered. The 5210 * lpfc_els_free_iocb() is invoked to release the IOCB data structure. 5211 **/ 5212 static void 5213 lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 5214 struct lpfc_iocbq *rspiocb) 5215 { 5216 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 5217 struct lpfc_vport *vport = cmdiocb->vport; 5218 u32 ulp_status, ulp_word4; 5219 5220 ulp_status = get_job_ulpstatus(phba, rspiocb); 5221 ulp_word4 = get_job_word4(phba, rspiocb); 5222 5223 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5224 "ACC LOGO cmpl: status:x%x/x%x did:x%x", 5225 ulp_status, ulp_word4, ndlp->nlp_DID); 5226 /* ACC to LOGO completes to NPort <nlp_DID> */ 5227 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5228 "0109 ACC to LOGO completes to NPort x%x refcnt %d " 5229 "Data: x%x x%x x%x\n", 5230 ndlp->nlp_DID, kref_read(&ndlp->kref), ndlp->nlp_flag, 5231 ndlp->nlp_state, ndlp->nlp_rpi); 5232 5233 /* This clause allows the LOGO ACC to complete and free resources 5234 * for the Fabric Domain Controller. It does deliberately skip 5235 * the unreg_rpi and release rpi because some fabrics send RDP 5236 * requests after logging out from the initiator. 5237 */ 5238 if (ndlp->nlp_type & NLP_FABRIC && 5239 ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK)) 5240 goto out; 5241 5242 if (ndlp->nlp_state == NLP_STE_NPR_NODE) { 5243 /* If PLOGI is being retried, PLOGI completion will cleanup the 5244 * node. The NLP_NPR_2B_DISC flag needs to be retained to make 5245 * progress on nodes discovered from last RSCN. 5246 */ 5247 if ((ndlp->nlp_flag & NLP_DELAY_TMO) && 5248 (ndlp->nlp_last_elscmd == ELS_CMD_PLOGI)) 5249 goto out; 5250 5251 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) 5252 lpfc_unreg_rpi(vport, ndlp); 5253 5254 } 5255 out: 5256 /* 5257 * The driver received a LOGO from the rport and has ACK'd it. 5258 * At this point, the driver is done so release the IOCB 5259 */ 5260 lpfc_els_free_iocb(phba, cmdiocb); 5261 lpfc_nlp_put(ndlp); 5262 } 5263 5264 /** 5265 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd 5266 * @phba: pointer to lpfc hba data structure. 5267 * @pmb: pointer to the driver internal queue element for mailbox command. 5268 * 5269 * This routine is the completion callback function for unregister default 5270 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases 5271 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and 5272 * decrements the ndlp reference count held for this completion callback 5273 * function. After that, it invokes the lpfc_drop_node to check 5274 * whether it is appropriate to release the node. 5275 **/ 5276 void 5277 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5278 { 5279 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; 5280 u32 mbx_flag = pmb->mbox_flag; 5281 u32 mbx_cmd = pmb->u.mb.mbxCommand; 5282 5283 if (ndlp) { 5284 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 5285 "0006 rpi x%x DID:%x flg:%x %d x%px " 5286 "mbx_cmd x%x mbx_flag x%x x%px\n", 5287 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5288 kref_read(&ndlp->kref), ndlp, mbx_cmd, 5289 mbx_flag, pmb); 5290 5291 /* This ends the default/temporary RPI cleanup logic for this 5292 * ndlp and the node and rpi needs to be released. Free the rpi 5293 * first on an UNREG_LOGIN and then release the final 5294 * references. 5295 */ 5296 spin_lock_irq(&ndlp->lock); 5297 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 5298 if (mbx_cmd == MBX_UNREG_LOGIN) 5299 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5300 spin_unlock_irq(&ndlp->lock); 5301 lpfc_nlp_put(ndlp); 5302 lpfc_drop_node(ndlp->vport, ndlp); 5303 } 5304 5305 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 5306 } 5307 5308 /** 5309 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd 5310 * @phba: pointer to lpfc hba data structure. 5311 * @cmdiocb: pointer to lpfc command iocb data structure. 5312 * @rspiocb: pointer to lpfc response iocb data structure. 5313 * 5314 * This routine is the completion callback function for ELS Response IOCB 5315 * command. In normal case, this callback function just properly sets the 5316 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference 5317 * field in the command IOCB is not NULL, the referred mailbox command will 5318 * be send out, and then invokes the lpfc_els_free_iocb() routine to release 5319 * the IOCB. 5320 **/ 5321 static void 5322 lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 5323 struct lpfc_iocbq *rspiocb) 5324 { 5325 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 5326 struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL; 5327 struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL; 5328 IOCB_t *irsp; 5329 LPFC_MBOXQ_t *mbox = NULL; 5330 u32 ulp_status, ulp_word4, tmo, did, iotag; 5331 5332 if (!vport) { 5333 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 5334 "3177 ELS response failed\n"); 5335 goto out; 5336 } 5337 if (cmdiocb->context_un.mbox) 5338 mbox = cmdiocb->context_un.mbox; 5339 5340 ulp_status = get_job_ulpstatus(phba, rspiocb); 5341 ulp_word4 = get_job_word4(phba, rspiocb); 5342 did = get_job_els_rsp64_did(phba, cmdiocb); 5343 5344 if (phba->sli_rev == LPFC_SLI_REV4) { 5345 tmo = get_wqe_tmo(cmdiocb); 5346 iotag = get_wqe_reqtag(cmdiocb); 5347 } else { 5348 irsp = &rspiocb->iocb; 5349 tmo = irsp->ulpTimeout; 5350 iotag = irsp->ulpIoTag; 5351 } 5352 5353 /* Check to see if link went down during discovery */ 5354 if (!ndlp || lpfc_els_chk_latt(vport)) { 5355 if (mbox) 5356 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 5357 goto out; 5358 } 5359 5360 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5361 "ELS rsp cmpl: status:x%x/x%x did:x%x", 5362 ulp_status, ulp_word4, did); 5363 /* ELS response tag <ulpIoTag> completes */ 5364 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5365 "0110 ELS response tag x%x completes " 5366 "Data: x%x x%x x%x x%x x%x x%x x%x x%x %p %p\n", 5367 iotag, ulp_status, ulp_word4, tmo, 5368 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5369 ndlp->nlp_rpi, kref_read(&ndlp->kref), mbox, ndlp); 5370 if (mbox) { 5371 if (ulp_status == 0 5372 && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) { 5373 if (!lpfc_unreg_rpi(vport, ndlp) && 5374 (!(vport->fc_flag & FC_PT2PT))) { 5375 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5376 ndlp->nlp_state == 5377 NLP_STE_REG_LOGIN_ISSUE) { 5378 lpfc_printf_vlog(vport, KERN_INFO, 5379 LOG_DISCOVERY, 5380 "0314 PLOGI recov " 5381 "DID x%x " 5382 "Data: x%x x%x x%x\n", 5383 ndlp->nlp_DID, 5384 ndlp->nlp_state, 5385 ndlp->nlp_rpi, 5386 ndlp->nlp_flag); 5387 goto out_free_mbox; 5388 } 5389 } 5390 5391 /* Increment reference count to ndlp to hold the 5392 * reference to ndlp for the callback function. 5393 */ 5394 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 5395 if (!mbox->ctx_ndlp) 5396 goto out_free_mbox; 5397 5398 mbox->vport = vport; 5399 if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) { 5400 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 5401 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 5402 } 5403 else { 5404 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 5405 ndlp->nlp_prev_state = ndlp->nlp_state; 5406 lpfc_nlp_set_state(vport, ndlp, 5407 NLP_STE_REG_LOGIN_ISSUE); 5408 } 5409 5410 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 5411 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 5412 != MBX_NOT_FINISHED) 5413 goto out; 5414 5415 /* Decrement the ndlp reference count we 5416 * set for this failed mailbox command. 5417 */ 5418 lpfc_nlp_put(ndlp); 5419 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 5420 5421 /* ELS rsp: Cannot issue reg_login for <NPortid> */ 5422 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5423 "0138 ELS rsp: Cannot issue reg_login for x%x " 5424 "Data: x%x x%x x%x\n", 5425 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5426 ndlp->nlp_rpi); 5427 } 5428 out_free_mbox: 5429 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 5430 } 5431 out: 5432 if (ndlp && shost) { 5433 spin_lock_irq(&ndlp->lock); 5434 if (mbox) 5435 ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN; 5436 ndlp->nlp_flag &= ~NLP_RM_DFLT_RPI; 5437 spin_unlock_irq(&ndlp->lock); 5438 } 5439 5440 /* An SLI4 NPIV instance wants to drop the node at this point under 5441 * these conditions and release the RPI. 5442 */ 5443 if (phba->sli_rev == LPFC_SLI_REV4 && 5444 vport && vport->port_type == LPFC_NPIV_PORT && 5445 !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) { 5446 if (ndlp->nlp_flag & NLP_RELEASE_RPI) { 5447 if (ndlp->nlp_state != NLP_STE_PLOGI_ISSUE && 5448 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 5449 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 5450 spin_lock_irq(&ndlp->lock); 5451 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 5452 ndlp->nlp_flag &= ~NLP_RELEASE_RPI; 5453 spin_unlock_irq(&ndlp->lock); 5454 } 5455 } 5456 5457 lpfc_drop_node(vport, ndlp); 5458 } 5459 5460 /* Release the originating I/O reference. */ 5461 lpfc_els_free_iocb(phba, cmdiocb); 5462 lpfc_nlp_put(ndlp); 5463 return; 5464 } 5465 5466 /** 5467 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command 5468 * @vport: pointer to a host virtual N_Port data structure. 5469 * @flag: the els command code to be accepted. 5470 * @oldiocb: pointer to the original lpfc command iocb data structure. 5471 * @ndlp: pointer to a node-list data structure. 5472 * @mbox: pointer to the driver internal queue element for mailbox command. 5473 * 5474 * This routine prepares and issues an Accept (ACC) response IOCB 5475 * command. It uses the @flag to properly set up the IOCB field for the 5476 * specific ACC response command to be issued and invokes the 5477 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a 5478 * @mbox pointer is passed in, it will be put into the context_un.mbox 5479 * field of the IOCB for the completion callback function to issue the 5480 * mailbox command to the HBA later when callback is invoked. 5481 * 5482 * Note that the ndlp reference count will be incremented by 1 for holding the 5483 * ndlp and the reference to ndlp will be stored into the ndlp field of 5484 * the IOCB for the completion callback function to the corresponding 5485 * response ELS IOCB command. 5486 * 5487 * Return code 5488 * 0 - Successfully issued acc response 5489 * 1 - Failed to issue acc response 5490 **/ 5491 int 5492 lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, 5493 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, 5494 LPFC_MBOXQ_t *mbox) 5495 { 5496 struct lpfc_hba *phba = vport->phba; 5497 IOCB_t *icmd; 5498 IOCB_t *oldcmd; 5499 union lpfc_wqe128 *wqe; 5500 union lpfc_wqe128 *oldwqe = &oldiocb->wqe; 5501 struct lpfc_iocbq *elsiocb; 5502 uint8_t *pcmd; 5503 struct serv_parm *sp; 5504 uint16_t cmdsize; 5505 int rc; 5506 ELS_PKT *els_pkt_ptr; 5507 struct fc_els_rdf_resp *rdf_resp; 5508 5509 switch (flag) { 5510 case ELS_CMD_ACC: 5511 cmdsize = sizeof(uint32_t); 5512 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5513 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5514 if (!elsiocb) { 5515 spin_lock_irq(&ndlp->lock); 5516 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 5517 spin_unlock_irq(&ndlp->lock); 5518 return 1; 5519 } 5520 5521 if (phba->sli_rev == LPFC_SLI_REV4) { 5522 wqe = &elsiocb->wqe; 5523 /* XRI / rx_id */ 5524 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5525 bf_get(wqe_ctxt_tag, 5526 &oldwqe->xmit_els_rsp.wqe_com)); 5527 5528 /* oxid */ 5529 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5530 bf_get(wqe_rcvoxid, 5531 &oldwqe->xmit_els_rsp.wqe_com)); 5532 } else { 5533 icmd = &elsiocb->iocb; 5534 oldcmd = &oldiocb->iocb; 5535 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5536 icmd->unsli3.rcvsli3.ox_id = 5537 oldcmd->unsli3.rcvsli3.ox_id; 5538 } 5539 5540 pcmd = elsiocb->cmd_dmabuf->virt; 5541 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 5542 pcmd += sizeof(uint32_t); 5543 5544 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5545 "Issue ACC: did:x%x flg:x%x", 5546 ndlp->nlp_DID, ndlp->nlp_flag, 0); 5547 break; 5548 case ELS_CMD_FLOGI: 5549 case ELS_CMD_PLOGI: 5550 cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); 5551 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5552 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5553 if (!elsiocb) 5554 return 1; 5555 5556 if (phba->sli_rev == LPFC_SLI_REV4) { 5557 wqe = &elsiocb->wqe; 5558 /* XRI / rx_id */ 5559 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5560 bf_get(wqe_ctxt_tag, 5561 &oldwqe->xmit_els_rsp.wqe_com)); 5562 5563 /* oxid */ 5564 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5565 bf_get(wqe_rcvoxid, 5566 &oldwqe->xmit_els_rsp.wqe_com)); 5567 } else { 5568 icmd = &elsiocb->iocb; 5569 oldcmd = &oldiocb->iocb; 5570 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5571 icmd->unsli3.rcvsli3.ox_id = 5572 oldcmd->unsli3.rcvsli3.ox_id; 5573 } 5574 5575 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 5576 5577 if (mbox) 5578 elsiocb->context_un.mbox = mbox; 5579 5580 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 5581 pcmd += sizeof(uint32_t); 5582 sp = (struct serv_parm *)pcmd; 5583 5584 if (flag == ELS_CMD_FLOGI) { 5585 /* Copy the received service parameters back */ 5586 memcpy(sp, &phba->fc_fabparam, 5587 sizeof(struct serv_parm)); 5588 5589 /* Clear the F_Port bit */ 5590 sp->cmn.fPort = 0; 5591 5592 /* Mark all class service parameters as invalid */ 5593 sp->cls1.classValid = 0; 5594 sp->cls2.classValid = 0; 5595 sp->cls3.classValid = 0; 5596 sp->cls4.classValid = 0; 5597 5598 /* Copy our worldwide names */ 5599 memcpy(&sp->portName, &vport->fc_sparam.portName, 5600 sizeof(struct lpfc_name)); 5601 memcpy(&sp->nodeName, &vport->fc_sparam.nodeName, 5602 sizeof(struct lpfc_name)); 5603 } else { 5604 memcpy(pcmd, &vport->fc_sparam, 5605 sizeof(struct serv_parm)); 5606 5607 sp->cmn.valid_vendor_ver_level = 0; 5608 memset(sp->un.vendorVersion, 0, 5609 sizeof(sp->un.vendorVersion)); 5610 sp->cmn.bbRcvSizeMsb &= 0xF; 5611 5612 /* If our firmware supports this feature, convey that 5613 * info to the target using the vendor specific field. 5614 */ 5615 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) { 5616 sp->cmn.valid_vendor_ver_level = 1; 5617 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID); 5618 sp->un.vv.flags = 5619 cpu_to_be32(LPFC_VV_SUPPRESS_RSP); 5620 } 5621 } 5622 5623 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5624 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%x", 5625 ndlp->nlp_DID, ndlp->nlp_flag, 0); 5626 break; 5627 case ELS_CMD_PRLO: 5628 cmdsize = sizeof(uint32_t) + sizeof(PRLO); 5629 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5630 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); 5631 if (!elsiocb) 5632 return 1; 5633 5634 if (phba->sli_rev == LPFC_SLI_REV4) { 5635 wqe = &elsiocb->wqe; 5636 /* XRI / rx_id */ 5637 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5638 bf_get(wqe_ctxt_tag, 5639 &oldwqe->xmit_els_rsp.wqe_com)); 5640 5641 /* oxid */ 5642 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5643 bf_get(wqe_rcvoxid, 5644 &oldwqe->xmit_els_rsp.wqe_com)); 5645 } else { 5646 icmd = &elsiocb->iocb; 5647 oldcmd = &oldiocb->iocb; 5648 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5649 icmd->unsli3.rcvsli3.ox_id = 5650 oldcmd->unsli3.rcvsli3.ox_id; 5651 } 5652 5653 pcmd = (u8 *) elsiocb->cmd_dmabuf->virt; 5654 5655 memcpy(pcmd, oldiocb->cmd_dmabuf->virt, 5656 sizeof(uint32_t) + sizeof(PRLO)); 5657 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; 5658 els_pkt_ptr = (ELS_PKT *) pcmd; 5659 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; 5660 5661 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5662 "Issue ACC PRLO: did:x%x flg:x%x", 5663 ndlp->nlp_DID, ndlp->nlp_flag, 0); 5664 break; 5665 case ELS_CMD_RDF: 5666 cmdsize = sizeof(*rdf_resp); 5667 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5668 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5669 if (!elsiocb) 5670 return 1; 5671 5672 if (phba->sli_rev == LPFC_SLI_REV4) { 5673 wqe = &elsiocb->wqe; 5674 /* XRI / rx_id */ 5675 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5676 bf_get(wqe_ctxt_tag, 5677 &oldwqe->xmit_els_rsp.wqe_com)); 5678 5679 /* oxid */ 5680 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5681 bf_get(wqe_rcvoxid, 5682 &oldwqe->xmit_els_rsp.wqe_com)); 5683 } else { 5684 icmd = &elsiocb->iocb; 5685 oldcmd = &oldiocb->iocb; 5686 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5687 icmd->unsli3.rcvsli3.ox_id = 5688 oldcmd->unsli3.rcvsli3.ox_id; 5689 } 5690 5691 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 5692 rdf_resp = (struct fc_els_rdf_resp *)pcmd; 5693 memset(rdf_resp, 0, sizeof(*rdf_resp)); 5694 rdf_resp->acc_hdr.la_cmd = ELS_LS_ACC; 5695 5696 /* FC-LS-5 specifies desc_list_len shall be set to 12 */ 5697 rdf_resp->desc_list_len = cpu_to_be32(12); 5698 5699 /* FC-LS-5 specifies LS REQ Information descriptor */ 5700 rdf_resp->lsri.desc_tag = cpu_to_be32(1); 5701 rdf_resp->lsri.desc_len = cpu_to_be32(sizeof(u32)); 5702 rdf_resp->lsri.rqst_w0.cmd = ELS_RDF; 5703 break; 5704 default: 5705 return 1; 5706 } 5707 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 5708 spin_lock_irq(&ndlp->lock); 5709 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED || 5710 ndlp->nlp_flag & NLP_REG_LOGIN_SEND)) 5711 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 5712 spin_unlock_irq(&ndlp->lock); 5713 elsiocb->cmd_cmpl = lpfc_cmpl_els_logo_acc; 5714 } else { 5715 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 5716 } 5717 5718 phba->fc_stat.elsXmitACC++; 5719 elsiocb->ndlp = lpfc_nlp_get(ndlp); 5720 if (!elsiocb->ndlp) { 5721 lpfc_els_free_iocb(phba, elsiocb); 5722 return 1; 5723 } 5724 5725 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 5726 if (rc == IOCB_ERROR) { 5727 lpfc_els_free_iocb(phba, elsiocb); 5728 lpfc_nlp_put(ndlp); 5729 return 1; 5730 } 5731 5732 /* Xmit ELS ACC response tag <ulpIoTag> */ 5733 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5734 "0128 Xmit ELS ACC response Status: x%x, IoTag: x%x, " 5735 "XRI: x%x, DID: x%x, nlp_flag: x%x nlp_state: x%x " 5736 "RPI: x%x, fc_flag x%x refcnt %d\n", 5737 rc, elsiocb->iotag, elsiocb->sli4_xritag, 5738 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5739 ndlp->nlp_rpi, vport->fc_flag, kref_read(&ndlp->kref)); 5740 return 0; 5741 } 5742 5743 /** 5744 * lpfc_els_rsp_reject - Prepare and issue a rjt response iocb command 5745 * @vport: pointer to a virtual N_Port data structure. 5746 * @rejectError: reject response to issue 5747 * @oldiocb: pointer to the original lpfc command iocb data structure. 5748 * @ndlp: pointer to a node-list data structure. 5749 * @mbox: pointer to the driver internal queue element for mailbox command. 5750 * 5751 * This routine prepares and issue an Reject (RJT) response IOCB 5752 * command. If a @mbox pointer is passed in, it will be put into the 5753 * context_un.mbox field of the IOCB for the completion callback function 5754 * to issue to the HBA later. 5755 * 5756 * Note that the ndlp reference count will be incremented by 1 for holding the 5757 * ndlp and the reference to ndlp will be stored into the ndlp field of 5758 * the IOCB for the completion callback function to the reject response 5759 * ELS IOCB command. 5760 * 5761 * Return code 5762 * 0 - Successfully issued reject response 5763 * 1 - Failed to issue reject response 5764 **/ 5765 int 5766 lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, 5767 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, 5768 LPFC_MBOXQ_t *mbox) 5769 { 5770 int rc; 5771 struct lpfc_hba *phba = vport->phba; 5772 IOCB_t *icmd; 5773 IOCB_t *oldcmd; 5774 union lpfc_wqe128 *wqe; 5775 struct lpfc_iocbq *elsiocb; 5776 uint8_t *pcmd; 5777 uint16_t cmdsize; 5778 5779 cmdsize = 2 * sizeof(uint32_t); 5780 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 5781 ndlp->nlp_DID, ELS_CMD_LS_RJT); 5782 if (!elsiocb) 5783 return 1; 5784 5785 if (phba->sli_rev == LPFC_SLI_REV4) { 5786 wqe = &elsiocb->wqe; 5787 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 5788 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 5789 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5790 get_job_rcvoxid(phba, oldiocb)); 5791 } else { 5792 icmd = &elsiocb->iocb; 5793 oldcmd = &oldiocb->iocb; 5794 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5795 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; 5796 } 5797 5798 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 5799 5800 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; 5801 pcmd += sizeof(uint32_t); 5802 *((uint32_t *) (pcmd)) = rejectError; 5803 5804 if (mbox) 5805 elsiocb->context_un.mbox = mbox; 5806 5807 /* Xmit ELS RJT <err> response tag <ulpIoTag> */ 5808 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5809 "0129 Xmit ELS RJT x%x response tag x%x " 5810 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " 5811 "rpi x%x\n", 5812 rejectError, elsiocb->iotag, 5813 get_job_ulpcontext(phba, elsiocb), ndlp->nlp_DID, 5814 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); 5815 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5816 "Issue LS_RJT: did:x%x flg:x%x err:x%x", 5817 ndlp->nlp_DID, ndlp->nlp_flag, rejectError); 5818 5819 phba->fc_stat.elsXmitLSRJT++; 5820 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 5821 elsiocb->ndlp = lpfc_nlp_get(ndlp); 5822 if (!elsiocb->ndlp) { 5823 lpfc_els_free_iocb(phba, elsiocb); 5824 return 1; 5825 } 5826 5827 /* The NPIV instance is rejecting this unsolicited ELS. Make sure the 5828 * node's assigned RPI gets released provided this node is not already 5829 * registered with the transport. 5830 */ 5831 if (phba->sli_rev == LPFC_SLI_REV4 && 5832 vport->port_type == LPFC_NPIV_PORT && 5833 !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) { 5834 spin_lock_irq(&ndlp->lock); 5835 ndlp->nlp_flag |= NLP_RELEASE_RPI; 5836 spin_unlock_irq(&ndlp->lock); 5837 } 5838 5839 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 5840 if (rc == IOCB_ERROR) { 5841 lpfc_els_free_iocb(phba, elsiocb); 5842 lpfc_nlp_put(ndlp); 5843 return 1; 5844 } 5845 5846 return 0; 5847 } 5848 5849 /** 5850 * lpfc_issue_els_edc_rsp - Exchange Diagnostic Capabilities with the fabric. 5851 * @vport: pointer to a host virtual N_Port data structure. 5852 * @cmdiocb: pointer to the original lpfc command iocb data structure. 5853 * @ndlp: NPort to where rsp is directed 5854 * 5855 * This routine issues an EDC ACC RSP to the F-Port Controller to communicate 5856 * this N_Port's support of hardware signals in its Congestion 5857 * Capabilities Descriptor. 5858 * 5859 * Return code 5860 * 0 - Successfully issued edc rsp command 5861 * 1 - Failed to issue edc rsp command 5862 **/ 5863 static int 5864 lpfc_issue_els_edc_rsp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 5865 struct lpfc_nodelist *ndlp) 5866 { 5867 struct lpfc_hba *phba = vport->phba; 5868 struct fc_els_edc_resp *edc_rsp; 5869 struct fc_tlv_desc *tlv; 5870 struct lpfc_iocbq *elsiocb; 5871 IOCB_t *icmd, *cmd; 5872 union lpfc_wqe128 *wqe; 5873 u32 cgn_desc_size, lft_desc_size; 5874 u16 cmdsize; 5875 uint8_t *pcmd; 5876 int rc; 5877 5878 cmdsize = sizeof(struct fc_els_edc_resp); 5879 cgn_desc_size = sizeof(struct fc_diag_cg_sig_desc); 5880 lft_desc_size = (lpfc_link_is_lds_capable(phba)) ? 5881 sizeof(struct fc_diag_lnkflt_desc) : 0; 5882 cmdsize += cgn_desc_size + lft_desc_size; 5883 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, cmdiocb->retry, 5884 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5885 if (!elsiocb) 5886 return 1; 5887 5888 if (phba->sli_rev == LPFC_SLI_REV4) { 5889 wqe = &elsiocb->wqe; 5890 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 5891 get_job_ulpcontext(phba, cmdiocb)); /* Xri / rx_id */ 5892 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5893 get_job_rcvoxid(phba, cmdiocb)); 5894 } else { 5895 icmd = &elsiocb->iocb; 5896 cmd = &cmdiocb->iocb; 5897 icmd->ulpContext = cmd->ulpContext; /* Xri / rx_id */ 5898 icmd->unsli3.rcvsli3.ox_id = cmd->unsli3.rcvsli3.ox_id; 5899 } 5900 5901 pcmd = elsiocb->cmd_dmabuf->virt; 5902 memset(pcmd, 0, cmdsize); 5903 5904 edc_rsp = (struct fc_els_edc_resp *)pcmd; 5905 edc_rsp->acc_hdr.la_cmd = ELS_LS_ACC; 5906 edc_rsp->desc_list_len = cpu_to_be32(sizeof(struct fc_els_lsri_desc) + 5907 cgn_desc_size + lft_desc_size); 5908 edc_rsp->lsri.desc_tag = cpu_to_be32(ELS_DTAG_LS_REQ_INFO); 5909 edc_rsp->lsri.desc_len = cpu_to_be32( 5910 FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_els_lsri_desc)); 5911 edc_rsp->lsri.rqst_w0.cmd = ELS_EDC; 5912 tlv = edc_rsp->desc; 5913 lpfc_format_edc_cgn_desc(phba, tlv); 5914 tlv = fc_tlv_next_desc(tlv); 5915 if (lft_desc_size) 5916 lpfc_format_edc_lft_desc(phba, tlv); 5917 5918 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5919 "Issue EDC ACC: did:x%x flg:x%x refcnt %d", 5920 ndlp->nlp_DID, ndlp->nlp_flag, 5921 kref_read(&ndlp->kref)); 5922 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 5923 5924 phba->fc_stat.elsXmitACC++; 5925 elsiocb->ndlp = lpfc_nlp_get(ndlp); 5926 if (!elsiocb->ndlp) { 5927 lpfc_els_free_iocb(phba, elsiocb); 5928 return 1; 5929 } 5930 5931 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 5932 if (rc == IOCB_ERROR) { 5933 lpfc_els_free_iocb(phba, elsiocb); 5934 lpfc_nlp_put(ndlp); 5935 return 1; 5936 } 5937 5938 /* Xmit ELS ACC response tag <ulpIoTag> */ 5939 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5940 "0152 Xmit EDC ACC response Status: x%x, IoTag: x%x, " 5941 "XRI: x%x, DID: x%x, nlp_flag: x%x nlp_state: x%x " 5942 "RPI: x%x, fc_flag x%x\n", 5943 rc, elsiocb->iotag, elsiocb->sli4_xritag, 5944 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5945 ndlp->nlp_rpi, vport->fc_flag); 5946 5947 return 0; 5948 } 5949 5950 /** 5951 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd 5952 * @vport: pointer to a virtual N_Port data structure. 5953 * @oldiocb: pointer to the original lpfc command iocb data structure. 5954 * @ndlp: pointer to a node-list data structure. 5955 * 5956 * This routine prepares and issues an Accept (ACC) response to Address 5957 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB 5958 * and invokes the lpfc_sli_issue_iocb() routine to send out the command. 5959 * 5960 * Note that the ndlp reference count will be incremented by 1 for holding the 5961 * ndlp and the reference to ndlp will be stored into the ndlp field of 5962 * the IOCB for the completion callback function to the ADISC Accept response 5963 * ELS IOCB command. 5964 * 5965 * Return code 5966 * 0 - Successfully issued acc adisc response 5967 * 1 - Failed to issue adisc acc response 5968 **/ 5969 int 5970 lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, 5971 struct lpfc_nodelist *ndlp) 5972 { 5973 struct lpfc_hba *phba = vport->phba; 5974 ADISC *ap; 5975 IOCB_t *icmd, *oldcmd; 5976 union lpfc_wqe128 *wqe; 5977 struct lpfc_iocbq *elsiocb; 5978 uint8_t *pcmd; 5979 uint16_t cmdsize; 5980 int rc; 5981 u32 ulp_context; 5982 5983 cmdsize = sizeof(uint32_t) + sizeof(ADISC); 5984 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 5985 ndlp->nlp_DID, ELS_CMD_ACC); 5986 if (!elsiocb) 5987 return 1; 5988 5989 if (phba->sli_rev == LPFC_SLI_REV4) { 5990 wqe = &elsiocb->wqe; 5991 /* XRI / rx_id */ 5992 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 5993 get_job_ulpcontext(phba, oldiocb)); 5994 ulp_context = get_job_ulpcontext(phba, elsiocb); 5995 /* oxid */ 5996 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5997 get_job_rcvoxid(phba, oldiocb)); 5998 } else { 5999 icmd = &elsiocb->iocb; 6000 oldcmd = &oldiocb->iocb; 6001 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6002 ulp_context = elsiocb->iocb.ulpContext; 6003 icmd->unsli3.rcvsli3.ox_id = 6004 oldcmd->unsli3.rcvsli3.ox_id; 6005 } 6006 6007 /* Xmit ADISC ACC response tag <ulpIoTag> */ 6008 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6009 "0130 Xmit ADISC ACC response iotag x%x xri: " 6010 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n", 6011 elsiocb->iotag, ulp_context, 6012 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 6013 ndlp->nlp_rpi); 6014 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6015 6016 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 6017 pcmd += sizeof(uint32_t); 6018 6019 ap = (ADISC *) (pcmd); 6020 ap->hardAL_PA = phba->fc_pref_ALPA; 6021 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); 6022 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 6023 ap->DID = be32_to_cpu(vport->fc_myDID); 6024 6025 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6026 "Issue ACC ADISC: did:x%x flg:x%x refcnt %d", 6027 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6028 6029 phba->fc_stat.elsXmitACC++; 6030 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6031 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6032 if (!elsiocb->ndlp) { 6033 lpfc_els_free_iocb(phba, elsiocb); 6034 return 1; 6035 } 6036 6037 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6038 if (rc == IOCB_ERROR) { 6039 lpfc_els_free_iocb(phba, elsiocb); 6040 lpfc_nlp_put(ndlp); 6041 return 1; 6042 } 6043 6044 return 0; 6045 } 6046 6047 /** 6048 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd 6049 * @vport: pointer to a virtual N_Port data structure. 6050 * @oldiocb: pointer to the original lpfc command iocb data structure. 6051 * @ndlp: pointer to a node-list data structure. 6052 * 6053 * This routine prepares and issues an Accept (ACC) response to Process 6054 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB 6055 * and invokes the lpfc_sli_issue_iocb() routine to send out the command. 6056 * 6057 * Note that the ndlp reference count will be incremented by 1 for holding the 6058 * ndlp and the reference to ndlp will be stored into the ndlp field of 6059 * the IOCB for the completion callback function to the PRLI Accept response 6060 * ELS IOCB command. 6061 * 6062 * Return code 6063 * 0 - Successfully issued acc prli response 6064 * 1 - Failed to issue acc prli response 6065 **/ 6066 int 6067 lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, 6068 struct lpfc_nodelist *ndlp) 6069 { 6070 struct lpfc_hba *phba = vport->phba; 6071 PRLI *npr; 6072 struct lpfc_nvme_prli *npr_nvme; 6073 lpfc_vpd_t *vpd; 6074 IOCB_t *icmd; 6075 IOCB_t *oldcmd; 6076 union lpfc_wqe128 *wqe; 6077 struct lpfc_iocbq *elsiocb; 6078 uint8_t *pcmd; 6079 uint16_t cmdsize; 6080 uint32_t prli_fc4_req, *req_payload; 6081 struct lpfc_dmabuf *req_buf; 6082 int rc; 6083 u32 elsrspcmd, ulp_context; 6084 6085 /* Need the incoming PRLI payload to determine if the ACC is for an 6086 * FC4 or NVME PRLI type. The PRLI type is at word 1. 6087 */ 6088 req_buf = oldiocb->cmd_dmabuf; 6089 req_payload = (((uint32_t *)req_buf->virt) + 1); 6090 6091 /* PRLI type payload is at byte 3 for FCP or NVME. */ 6092 prli_fc4_req = be32_to_cpu(*req_payload); 6093 prli_fc4_req = (prli_fc4_req >> 24) & 0xff; 6094 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6095 "6127 PRLI_ACC: Req Type x%x, Word1 x%08x\n", 6096 prli_fc4_req, *((uint32_t *)req_payload)); 6097 6098 if (prli_fc4_req == PRLI_FCP_TYPE) { 6099 cmdsize = sizeof(uint32_t) + sizeof(PRLI); 6100 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); 6101 } else if (prli_fc4_req == PRLI_NVME_TYPE) { 6102 cmdsize = sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli); 6103 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_NVMEPRLI & ~ELS_RSP_MASK)); 6104 } else { 6105 return 1; 6106 } 6107 6108 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 6109 ndlp->nlp_DID, elsrspcmd); 6110 if (!elsiocb) 6111 return 1; 6112 6113 if (phba->sli_rev == LPFC_SLI_REV4) { 6114 wqe = &elsiocb->wqe; 6115 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6116 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 6117 ulp_context = get_job_ulpcontext(phba, elsiocb); 6118 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6119 get_job_rcvoxid(phba, oldiocb)); 6120 } else { 6121 icmd = &elsiocb->iocb; 6122 oldcmd = &oldiocb->iocb; 6123 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6124 ulp_context = elsiocb->iocb.ulpContext; 6125 icmd->unsli3.rcvsli3.ox_id = 6126 oldcmd->unsli3.rcvsli3.ox_id; 6127 } 6128 6129 /* Xmit PRLI ACC response tag <ulpIoTag> */ 6130 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6131 "0131 Xmit PRLI ACC response tag x%x xri x%x, " 6132 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", 6133 elsiocb->iotag, ulp_context, 6134 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 6135 ndlp->nlp_rpi); 6136 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6137 memset(pcmd, 0, cmdsize); 6138 6139 *((uint32_t *)(pcmd)) = elsrspcmd; 6140 pcmd += sizeof(uint32_t); 6141 6142 /* For PRLI, remainder of payload is PRLI parameter page */ 6143 vpd = &phba->vpd; 6144 6145 if (prli_fc4_req == PRLI_FCP_TYPE) { 6146 /* 6147 * If the remote port is a target and our firmware version 6148 * is 3.20 or later, set the following bits for FC-TAPE 6149 * support. 6150 */ 6151 npr = (PRLI *) pcmd; 6152 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 6153 (vpd->rev.feaLevelHigh >= 0x02)) { 6154 npr->ConfmComplAllowed = 1; 6155 npr->Retry = 1; 6156 npr->TaskRetryIdReq = 1; 6157 } 6158 npr->acceptRspCode = PRLI_REQ_EXECUTED; 6159 npr->estabImagePair = 1; 6160 npr->readXferRdyDis = 1; 6161 npr->ConfmComplAllowed = 1; 6162 npr->prliType = PRLI_FCP_TYPE; 6163 npr->initiatorFunc = 1; 6164 } else if (prli_fc4_req == PRLI_NVME_TYPE) { 6165 /* Respond with an NVME PRLI Type */ 6166 npr_nvme = (struct lpfc_nvme_prli *) pcmd; 6167 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE); 6168 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */ 6169 bf_set(prli_acc_rsp_code, npr_nvme, PRLI_REQ_EXECUTED); 6170 if (phba->nvmet_support) { 6171 bf_set(prli_tgt, npr_nvme, 1); 6172 bf_set(prli_disc, npr_nvme, 1); 6173 if (phba->cfg_nvme_enable_fb) { 6174 bf_set(prli_fba, npr_nvme, 1); 6175 6176 /* TBD. Target mode needs to post buffers 6177 * that support the configured first burst 6178 * byte size. 6179 */ 6180 bf_set(prli_fb_sz, npr_nvme, 6181 phba->cfg_nvmet_fb_size); 6182 } 6183 } else { 6184 bf_set(prli_init, npr_nvme, 1); 6185 } 6186 6187 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 6188 "6015 NVME issue PRLI ACC word1 x%08x " 6189 "word4 x%08x word5 x%08x flag x%x, " 6190 "fcp_info x%x nlp_type x%x\n", 6191 npr_nvme->word1, npr_nvme->word4, 6192 npr_nvme->word5, ndlp->nlp_flag, 6193 ndlp->nlp_fcp_info, ndlp->nlp_type); 6194 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1); 6195 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4); 6196 npr_nvme->word5 = cpu_to_be32(npr_nvme->word5); 6197 } else 6198 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 6199 "6128 Unknown FC_TYPE x%x x%x ndlp x%06x\n", 6200 prli_fc4_req, ndlp->nlp_fc4_type, 6201 ndlp->nlp_DID); 6202 6203 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6204 "Issue ACC PRLI: did:x%x flg:x%x", 6205 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6206 6207 phba->fc_stat.elsXmitACC++; 6208 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6209 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6210 if (!elsiocb->ndlp) { 6211 lpfc_els_free_iocb(phba, elsiocb); 6212 return 1; 6213 } 6214 6215 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6216 if (rc == IOCB_ERROR) { 6217 lpfc_els_free_iocb(phba, elsiocb); 6218 lpfc_nlp_put(ndlp); 6219 return 1; 6220 } 6221 6222 return 0; 6223 } 6224 6225 /** 6226 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command 6227 * @vport: pointer to a virtual N_Port data structure. 6228 * @format: rnid command format. 6229 * @oldiocb: pointer to the original lpfc command iocb data structure. 6230 * @ndlp: pointer to a node-list data structure. 6231 * 6232 * This routine issues a Request Node Identification Data (RNID) Accept 6233 * (ACC) response. It constructs the RNID ACC response command according to 6234 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to 6235 * issue the response. 6236 * 6237 * Note that the ndlp reference count will be incremented by 1 for holding the 6238 * ndlp and the reference to ndlp will be stored into the ndlp field of 6239 * the IOCB for the completion callback function. 6240 * 6241 * Return code 6242 * 0 - Successfully issued acc rnid response 6243 * 1 - Failed to issue acc rnid response 6244 **/ 6245 static int 6246 lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, 6247 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) 6248 { 6249 struct lpfc_hba *phba = vport->phba; 6250 RNID *rn; 6251 IOCB_t *icmd, *oldcmd; 6252 union lpfc_wqe128 *wqe; 6253 struct lpfc_iocbq *elsiocb; 6254 uint8_t *pcmd; 6255 uint16_t cmdsize; 6256 int rc; 6257 u32 ulp_context; 6258 6259 cmdsize = sizeof(uint32_t) + sizeof(uint32_t) 6260 + (2 * sizeof(struct lpfc_name)); 6261 if (format) 6262 cmdsize += sizeof(RNID_TOP_DISC); 6263 6264 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 6265 ndlp->nlp_DID, ELS_CMD_ACC); 6266 if (!elsiocb) 6267 return 1; 6268 6269 if (phba->sli_rev == LPFC_SLI_REV4) { 6270 wqe = &elsiocb->wqe; 6271 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6272 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 6273 ulp_context = get_job_ulpcontext(phba, elsiocb); 6274 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6275 get_job_rcvoxid(phba, oldiocb)); 6276 } else { 6277 icmd = &elsiocb->iocb; 6278 oldcmd = &oldiocb->iocb; 6279 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6280 ulp_context = elsiocb->iocb.ulpContext; 6281 icmd->unsli3.rcvsli3.ox_id = 6282 oldcmd->unsli3.rcvsli3.ox_id; 6283 } 6284 6285 /* Xmit RNID ACC response tag <ulpIoTag> */ 6286 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6287 "0132 Xmit RNID ACC response tag x%x xri x%x\n", 6288 elsiocb->iotag, ulp_context); 6289 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6290 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 6291 pcmd += sizeof(uint32_t); 6292 6293 memset(pcmd, 0, sizeof(RNID)); 6294 rn = (RNID *) (pcmd); 6295 rn->Format = format; 6296 rn->CommonLen = (2 * sizeof(struct lpfc_name)); 6297 memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); 6298 memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 6299 switch (format) { 6300 case 0: 6301 rn->SpecificLen = 0; 6302 break; 6303 case RNID_TOPOLOGY_DISC: 6304 rn->SpecificLen = sizeof(RNID_TOP_DISC); 6305 memcpy(&rn->un.topologyDisc.portName, 6306 &vport->fc_portname, sizeof(struct lpfc_name)); 6307 rn->un.topologyDisc.unitType = RNID_HBA; 6308 rn->un.topologyDisc.physPort = 0; 6309 rn->un.topologyDisc.attachedNodes = 0; 6310 break; 6311 default: 6312 rn->CommonLen = 0; 6313 rn->SpecificLen = 0; 6314 break; 6315 } 6316 6317 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6318 "Issue ACC RNID: did:x%x flg:x%x refcnt %d", 6319 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6320 6321 phba->fc_stat.elsXmitACC++; 6322 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6323 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6324 if (!elsiocb->ndlp) { 6325 lpfc_els_free_iocb(phba, elsiocb); 6326 return 1; 6327 } 6328 6329 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6330 if (rc == IOCB_ERROR) { 6331 lpfc_els_free_iocb(phba, elsiocb); 6332 lpfc_nlp_put(ndlp); 6333 return 1; 6334 } 6335 6336 return 0; 6337 } 6338 6339 /** 6340 * lpfc_els_clear_rrq - Clear the rq that this rrq describes. 6341 * @vport: pointer to a virtual N_Port data structure. 6342 * @iocb: pointer to the lpfc command iocb data structure. 6343 * @ndlp: pointer to a node-list data structure. 6344 * 6345 * Return 6346 **/ 6347 static void 6348 lpfc_els_clear_rrq(struct lpfc_vport *vport, 6349 struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp) 6350 { 6351 struct lpfc_hba *phba = vport->phba; 6352 uint8_t *pcmd; 6353 struct RRQ *rrq; 6354 uint16_t rxid; 6355 uint16_t xri; 6356 struct lpfc_node_rrq *prrq; 6357 6358 6359 pcmd = (uint8_t *)iocb->cmd_dmabuf->virt; 6360 pcmd += sizeof(uint32_t); 6361 rrq = (struct RRQ *)pcmd; 6362 rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg); 6363 rxid = bf_get(rrq_rxid, rrq); 6364 6365 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6366 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x" 6367 " x%x x%x\n", 6368 be32_to_cpu(bf_get(rrq_did, rrq)), 6369 bf_get(rrq_oxid, rrq), 6370 rxid, 6371 get_wqe_reqtag(iocb), 6372 get_job_ulpcontext(phba, iocb)); 6373 6374 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6375 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x", 6376 ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg); 6377 if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq))) 6378 xri = bf_get(rrq_oxid, rrq); 6379 else 6380 xri = rxid; 6381 prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID); 6382 if (prrq) 6383 lpfc_clr_rrq_active(phba, xri, prrq); 6384 return; 6385 } 6386 6387 /** 6388 * lpfc_els_rsp_echo_acc - Issue echo acc response 6389 * @vport: pointer to a virtual N_Port data structure. 6390 * @data: pointer to echo data to return in the accept. 6391 * @oldiocb: pointer to the original lpfc command iocb data structure. 6392 * @ndlp: pointer to a node-list data structure. 6393 * 6394 * Return code 6395 * 0 - Successfully issued acc echo response 6396 * 1 - Failed to issue acc echo response 6397 **/ 6398 static int 6399 lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data, 6400 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) 6401 { 6402 struct lpfc_hba *phba = vport->phba; 6403 IOCB_t *icmd, *oldcmd; 6404 union lpfc_wqe128 *wqe; 6405 struct lpfc_iocbq *elsiocb; 6406 uint8_t *pcmd; 6407 uint16_t cmdsize; 6408 int rc; 6409 u32 ulp_context; 6410 6411 if (phba->sli_rev == LPFC_SLI_REV4) 6412 cmdsize = oldiocb->wcqe_cmpl.total_data_placed; 6413 else 6414 cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len; 6415 6416 /* The accumulated length can exceed the BPL_SIZE. For 6417 * now, use this as the limit 6418 */ 6419 if (cmdsize > LPFC_BPL_SIZE) 6420 cmdsize = LPFC_BPL_SIZE; 6421 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 6422 ndlp->nlp_DID, ELS_CMD_ACC); 6423 if (!elsiocb) 6424 return 1; 6425 6426 if (phba->sli_rev == LPFC_SLI_REV4) { 6427 wqe = &elsiocb->wqe; 6428 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6429 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 6430 ulp_context = get_job_ulpcontext(phba, elsiocb); 6431 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6432 get_job_rcvoxid(phba, oldiocb)); 6433 } else { 6434 icmd = &elsiocb->iocb; 6435 oldcmd = &oldiocb->iocb; 6436 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6437 ulp_context = elsiocb->iocb.ulpContext; 6438 icmd->unsli3.rcvsli3.ox_id = 6439 oldcmd->unsli3.rcvsli3.ox_id; 6440 } 6441 6442 /* Xmit ECHO ACC response tag <ulpIoTag> */ 6443 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6444 "2876 Xmit ECHO ACC response tag x%x xri x%x\n", 6445 elsiocb->iotag, ulp_context); 6446 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6447 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 6448 pcmd += sizeof(uint32_t); 6449 memcpy(pcmd, data, cmdsize - sizeof(uint32_t)); 6450 6451 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6452 "Issue ACC ECHO: did:x%x flg:x%x refcnt %d", 6453 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6454 6455 phba->fc_stat.elsXmitACC++; 6456 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6457 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6458 if (!elsiocb->ndlp) { 6459 lpfc_els_free_iocb(phba, elsiocb); 6460 return 1; 6461 } 6462 6463 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6464 if (rc == IOCB_ERROR) { 6465 lpfc_els_free_iocb(phba, elsiocb); 6466 lpfc_nlp_put(ndlp); 6467 return 1; 6468 } 6469 6470 return 0; 6471 } 6472 6473 /** 6474 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport 6475 * @vport: pointer to a host virtual N_Port data structure. 6476 * 6477 * This routine issues Address Discover (ADISC) ELS commands to those 6478 * N_Ports which are in node port recovery state and ADISC has not been issued 6479 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the 6480 * lpfc_issue_els_adisc() routine, the per @vport number of discover count 6481 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a 6482 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will 6483 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC 6484 * IOCBs quit for later pick up. On the other hand, after walking through 6485 * all the ndlps with the @vport and there is none ADISC IOCB issued, the 6486 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is 6487 * no more ADISC need to be sent. 6488 * 6489 * Return code 6490 * The number of N_Ports with adisc issued. 6491 **/ 6492 int 6493 lpfc_els_disc_adisc(struct lpfc_vport *vport) 6494 { 6495 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6496 struct lpfc_nodelist *ndlp, *next_ndlp; 6497 int sentadisc = 0; 6498 6499 /* go thru NPR nodes and issue any remaining ELS ADISCs */ 6500 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 6501 6502 if (ndlp->nlp_state != NLP_STE_NPR_NODE || 6503 !(ndlp->nlp_flag & NLP_NPR_ADISC)) 6504 continue; 6505 6506 spin_lock_irq(&ndlp->lock); 6507 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 6508 spin_unlock_irq(&ndlp->lock); 6509 6510 if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 6511 /* This node was marked for ADISC but was not picked 6512 * for discovery. This is possible if the node was 6513 * missing in gidft response. 6514 * 6515 * At time of marking node for ADISC, we skipped unreg 6516 * from backend 6517 */ 6518 lpfc_nlp_unreg_node(vport, ndlp); 6519 lpfc_unreg_rpi(vport, ndlp); 6520 continue; 6521 } 6522 6523 ndlp->nlp_prev_state = ndlp->nlp_state; 6524 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 6525 lpfc_issue_els_adisc(vport, ndlp, 0); 6526 sentadisc++; 6527 vport->num_disc_nodes++; 6528 if (vport->num_disc_nodes >= 6529 vport->cfg_discovery_threads) { 6530 spin_lock_irq(shost->host_lock); 6531 vport->fc_flag |= FC_NLP_MORE; 6532 spin_unlock_irq(shost->host_lock); 6533 break; 6534 } 6535 6536 } 6537 if (sentadisc == 0) { 6538 spin_lock_irq(shost->host_lock); 6539 vport->fc_flag &= ~FC_NLP_MORE; 6540 spin_unlock_irq(shost->host_lock); 6541 } 6542 return sentadisc; 6543 } 6544 6545 /** 6546 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc 6547 * @vport: pointer to a host virtual N_Port data structure. 6548 * 6549 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports 6550 * which are in node port recovery state, with a @vport. Each time an ELS 6551 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine, 6552 * the per @vport number of discover count (num_disc_nodes) shall be 6553 * incremented. If the num_disc_nodes reaches a pre-configured threshold 6554 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE 6555 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for 6556 * later pick up. On the other hand, after walking through all the ndlps with 6557 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag 6558 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC 6559 * PLOGI need to be sent. 6560 * 6561 * Return code 6562 * The number of N_Ports with plogi issued. 6563 **/ 6564 int 6565 lpfc_els_disc_plogi(struct lpfc_vport *vport) 6566 { 6567 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6568 struct lpfc_nodelist *ndlp, *next_ndlp; 6569 int sentplogi = 0; 6570 6571 /* go thru NPR nodes and issue any remaining ELS PLOGIs */ 6572 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 6573 if (ndlp->nlp_state == NLP_STE_NPR_NODE && 6574 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && 6575 (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && 6576 (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { 6577 ndlp->nlp_prev_state = ndlp->nlp_state; 6578 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 6579 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 6580 sentplogi++; 6581 vport->num_disc_nodes++; 6582 if (vport->num_disc_nodes >= 6583 vport->cfg_discovery_threads) { 6584 spin_lock_irq(shost->host_lock); 6585 vport->fc_flag |= FC_NLP_MORE; 6586 spin_unlock_irq(shost->host_lock); 6587 break; 6588 } 6589 } 6590 } 6591 6592 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 6593 "6452 Discover PLOGI %d flag x%x\n", 6594 sentplogi, vport->fc_flag); 6595 6596 if (sentplogi) { 6597 lpfc_set_disctmo(vport); 6598 } 6599 else { 6600 spin_lock_irq(shost->host_lock); 6601 vport->fc_flag &= ~FC_NLP_MORE; 6602 spin_unlock_irq(shost->host_lock); 6603 } 6604 return sentplogi; 6605 } 6606 6607 static uint32_t 6608 lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc, 6609 uint32_t word0) 6610 { 6611 6612 desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG); 6613 desc->payload.els_req = word0; 6614 desc->length = cpu_to_be32(sizeof(desc->payload)); 6615 6616 return sizeof(struct fc_rdp_link_service_desc); 6617 } 6618 6619 static uint32_t 6620 lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc, 6621 uint8_t *page_a0, uint8_t *page_a2) 6622 { 6623 uint16_t wavelength; 6624 uint16_t temperature; 6625 uint16_t rx_power; 6626 uint16_t tx_bias; 6627 uint16_t tx_power; 6628 uint16_t vcc; 6629 uint16_t flag = 0; 6630 struct sff_trasnceiver_codes_byte4 *trasn_code_byte4; 6631 struct sff_trasnceiver_codes_byte5 *trasn_code_byte5; 6632 6633 desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG); 6634 6635 trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *) 6636 &page_a0[SSF_TRANSCEIVER_CODE_B4]; 6637 trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *) 6638 &page_a0[SSF_TRANSCEIVER_CODE_B5]; 6639 6640 if ((trasn_code_byte4->fc_sw_laser) || 6641 (trasn_code_byte5->fc_sw_laser_sl) || 6642 (trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */ 6643 flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT); 6644 } else if (trasn_code_byte4->fc_lw_laser) { 6645 wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) | 6646 page_a0[SSF_WAVELENGTH_B0]; 6647 if (wavelength == SFP_WAVELENGTH_LC1310) 6648 flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT; 6649 if (wavelength == SFP_WAVELENGTH_LL1550) 6650 flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT; 6651 } 6652 /* check if its SFP+ */ 6653 flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ? 6654 SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN) 6655 << SFP_FLAG_CT_SHIFT; 6656 6657 /* check if its OPTICAL */ 6658 flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ? 6659 SFP_FLAG_IS_OPTICAL_PORT : 0) 6660 << SFP_FLAG_IS_OPTICAL_SHIFT; 6661 6662 temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 | 6663 page_a2[SFF_TEMPERATURE_B0]); 6664 vcc = (page_a2[SFF_VCC_B1] << 8 | 6665 page_a2[SFF_VCC_B0]); 6666 tx_power = (page_a2[SFF_TXPOWER_B1] << 8 | 6667 page_a2[SFF_TXPOWER_B0]); 6668 tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 | 6669 page_a2[SFF_TX_BIAS_CURRENT_B0]); 6670 rx_power = (page_a2[SFF_RXPOWER_B1] << 8 | 6671 page_a2[SFF_RXPOWER_B0]); 6672 desc->sfp_info.temperature = cpu_to_be16(temperature); 6673 desc->sfp_info.rx_power = cpu_to_be16(rx_power); 6674 desc->sfp_info.tx_bias = cpu_to_be16(tx_bias); 6675 desc->sfp_info.tx_power = cpu_to_be16(tx_power); 6676 desc->sfp_info.vcc = cpu_to_be16(vcc); 6677 6678 desc->sfp_info.flags = cpu_to_be16(flag); 6679 desc->length = cpu_to_be32(sizeof(desc->sfp_info)); 6680 6681 return sizeof(struct fc_rdp_sfp_desc); 6682 } 6683 6684 static uint32_t 6685 lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc, 6686 READ_LNK_VAR *stat) 6687 { 6688 uint32_t type; 6689 6690 desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG); 6691 6692 type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT; 6693 6694 desc->info.port_type = cpu_to_be32(type); 6695 6696 desc->info.link_status.link_failure_cnt = 6697 cpu_to_be32(stat->linkFailureCnt); 6698 desc->info.link_status.loss_of_synch_cnt = 6699 cpu_to_be32(stat->lossSyncCnt); 6700 desc->info.link_status.loss_of_signal_cnt = 6701 cpu_to_be32(stat->lossSignalCnt); 6702 desc->info.link_status.primitive_seq_proto_err = 6703 cpu_to_be32(stat->primSeqErrCnt); 6704 desc->info.link_status.invalid_trans_word = 6705 cpu_to_be32(stat->invalidXmitWord); 6706 desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt); 6707 6708 desc->length = cpu_to_be32(sizeof(desc->info)); 6709 6710 return sizeof(struct fc_rdp_link_error_status_desc); 6711 } 6712 6713 static uint32_t 6714 lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat, 6715 struct lpfc_vport *vport) 6716 { 6717 uint32_t bbCredit; 6718 6719 desc->tag = cpu_to_be32(RDP_BBC_DESC_TAG); 6720 6721 bbCredit = vport->fc_sparam.cmn.bbCreditLsb | 6722 (vport->fc_sparam.cmn.bbCreditMsb << 8); 6723 desc->bbc_info.port_bbc = cpu_to_be32(bbCredit); 6724 if (vport->phba->fc_topology != LPFC_TOPOLOGY_LOOP) { 6725 bbCredit = vport->phba->fc_fabparam.cmn.bbCreditLsb | 6726 (vport->phba->fc_fabparam.cmn.bbCreditMsb << 8); 6727 desc->bbc_info.attached_port_bbc = cpu_to_be32(bbCredit); 6728 } else { 6729 desc->bbc_info.attached_port_bbc = 0; 6730 } 6731 6732 desc->bbc_info.rtt = 0; 6733 desc->length = cpu_to_be32(sizeof(desc->bbc_info)); 6734 6735 return sizeof(struct fc_rdp_bbc_desc); 6736 } 6737 6738 static uint32_t 6739 lpfc_rdp_res_oed_temp_desc(struct lpfc_hba *phba, 6740 struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2) 6741 { 6742 uint32_t flags = 0; 6743 6744 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6745 6746 desc->oed_info.hi_alarm = page_a2[SSF_TEMP_HIGH_ALARM]; 6747 desc->oed_info.lo_alarm = page_a2[SSF_TEMP_LOW_ALARM]; 6748 desc->oed_info.hi_warning = page_a2[SSF_TEMP_HIGH_WARNING]; 6749 desc->oed_info.lo_warning = page_a2[SSF_TEMP_LOW_WARNING]; 6750 6751 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TEMPERATURE) 6752 flags |= RDP_OET_HIGH_ALARM; 6753 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TEMPERATURE) 6754 flags |= RDP_OET_LOW_ALARM; 6755 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TEMPERATURE) 6756 flags |= RDP_OET_HIGH_WARNING; 6757 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TEMPERATURE) 6758 flags |= RDP_OET_LOW_WARNING; 6759 6760 flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT); 6761 desc->oed_info.function_flags = cpu_to_be32(flags); 6762 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6763 return sizeof(struct fc_rdp_oed_sfp_desc); 6764 } 6765 6766 static uint32_t 6767 lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba *phba, 6768 struct fc_rdp_oed_sfp_desc *desc, 6769 uint8_t *page_a2) 6770 { 6771 uint32_t flags = 0; 6772 6773 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6774 6775 desc->oed_info.hi_alarm = page_a2[SSF_VOLTAGE_HIGH_ALARM]; 6776 desc->oed_info.lo_alarm = page_a2[SSF_VOLTAGE_LOW_ALARM]; 6777 desc->oed_info.hi_warning = page_a2[SSF_VOLTAGE_HIGH_WARNING]; 6778 desc->oed_info.lo_warning = page_a2[SSF_VOLTAGE_LOW_WARNING]; 6779 6780 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_VOLTAGE) 6781 flags |= RDP_OET_HIGH_ALARM; 6782 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_VOLTAGE) 6783 flags |= RDP_OET_LOW_ALARM; 6784 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_VOLTAGE) 6785 flags |= RDP_OET_HIGH_WARNING; 6786 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_VOLTAGE) 6787 flags |= RDP_OET_LOW_WARNING; 6788 6789 flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT); 6790 desc->oed_info.function_flags = cpu_to_be32(flags); 6791 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6792 return sizeof(struct fc_rdp_oed_sfp_desc); 6793 } 6794 6795 static uint32_t 6796 lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba *phba, 6797 struct fc_rdp_oed_sfp_desc *desc, 6798 uint8_t *page_a2) 6799 { 6800 uint32_t flags = 0; 6801 6802 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6803 6804 desc->oed_info.hi_alarm = page_a2[SSF_BIAS_HIGH_ALARM]; 6805 desc->oed_info.lo_alarm = page_a2[SSF_BIAS_LOW_ALARM]; 6806 desc->oed_info.hi_warning = page_a2[SSF_BIAS_HIGH_WARNING]; 6807 desc->oed_info.lo_warning = page_a2[SSF_BIAS_LOW_WARNING]; 6808 6809 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXBIAS) 6810 flags |= RDP_OET_HIGH_ALARM; 6811 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXBIAS) 6812 flags |= RDP_OET_LOW_ALARM; 6813 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXBIAS) 6814 flags |= RDP_OET_HIGH_WARNING; 6815 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXBIAS) 6816 flags |= RDP_OET_LOW_WARNING; 6817 6818 flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT); 6819 desc->oed_info.function_flags = cpu_to_be32(flags); 6820 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6821 return sizeof(struct fc_rdp_oed_sfp_desc); 6822 } 6823 6824 static uint32_t 6825 lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba *phba, 6826 struct fc_rdp_oed_sfp_desc *desc, 6827 uint8_t *page_a2) 6828 { 6829 uint32_t flags = 0; 6830 6831 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6832 6833 desc->oed_info.hi_alarm = page_a2[SSF_TXPOWER_HIGH_ALARM]; 6834 desc->oed_info.lo_alarm = page_a2[SSF_TXPOWER_LOW_ALARM]; 6835 desc->oed_info.hi_warning = page_a2[SSF_TXPOWER_HIGH_WARNING]; 6836 desc->oed_info.lo_warning = page_a2[SSF_TXPOWER_LOW_WARNING]; 6837 6838 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXPOWER) 6839 flags |= RDP_OET_HIGH_ALARM; 6840 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXPOWER) 6841 flags |= RDP_OET_LOW_ALARM; 6842 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXPOWER) 6843 flags |= RDP_OET_HIGH_WARNING; 6844 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXPOWER) 6845 flags |= RDP_OET_LOW_WARNING; 6846 6847 flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT); 6848 desc->oed_info.function_flags = cpu_to_be32(flags); 6849 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6850 return sizeof(struct fc_rdp_oed_sfp_desc); 6851 } 6852 6853 6854 static uint32_t 6855 lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba *phba, 6856 struct fc_rdp_oed_sfp_desc *desc, 6857 uint8_t *page_a2) 6858 { 6859 uint32_t flags = 0; 6860 6861 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6862 6863 desc->oed_info.hi_alarm = page_a2[SSF_RXPOWER_HIGH_ALARM]; 6864 desc->oed_info.lo_alarm = page_a2[SSF_RXPOWER_LOW_ALARM]; 6865 desc->oed_info.hi_warning = page_a2[SSF_RXPOWER_HIGH_WARNING]; 6866 desc->oed_info.lo_warning = page_a2[SSF_RXPOWER_LOW_WARNING]; 6867 6868 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_RXPOWER) 6869 flags |= RDP_OET_HIGH_ALARM; 6870 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_RXPOWER) 6871 flags |= RDP_OET_LOW_ALARM; 6872 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_RXPOWER) 6873 flags |= RDP_OET_HIGH_WARNING; 6874 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_RXPOWER) 6875 flags |= RDP_OET_LOW_WARNING; 6876 6877 flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT); 6878 desc->oed_info.function_flags = cpu_to_be32(flags); 6879 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6880 return sizeof(struct fc_rdp_oed_sfp_desc); 6881 } 6882 6883 static uint32_t 6884 lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc, 6885 uint8_t *page_a0, struct lpfc_vport *vport) 6886 { 6887 desc->tag = cpu_to_be32(RDP_OPD_DESC_TAG); 6888 memcpy(desc->opd_info.vendor_name, &page_a0[SSF_VENDOR_NAME], 16); 6889 memcpy(desc->opd_info.model_number, &page_a0[SSF_VENDOR_PN], 16); 6890 memcpy(desc->opd_info.serial_number, &page_a0[SSF_VENDOR_SN], 16); 6891 memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 4); 6892 memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8); 6893 desc->length = cpu_to_be32(sizeof(desc->opd_info)); 6894 return sizeof(struct fc_rdp_opd_sfp_desc); 6895 } 6896 6897 static uint32_t 6898 lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat) 6899 { 6900 if (bf_get(lpfc_read_link_stat_gec2, stat) == 0) 6901 return 0; 6902 desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG); 6903 6904 desc->info.CorrectedBlocks = 6905 cpu_to_be32(stat->fecCorrBlkCount); 6906 desc->info.UncorrectableBlocks = 6907 cpu_to_be32(stat->fecUncorrBlkCount); 6908 6909 desc->length = cpu_to_be32(sizeof(desc->info)); 6910 6911 return sizeof(struct fc_fec_rdp_desc); 6912 } 6913 6914 static uint32_t 6915 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba) 6916 { 6917 uint16_t rdp_cap = 0; 6918 uint16_t rdp_speed; 6919 6920 desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG); 6921 6922 switch (phba->fc_linkspeed) { 6923 case LPFC_LINK_SPEED_1GHZ: 6924 rdp_speed = RDP_PS_1GB; 6925 break; 6926 case LPFC_LINK_SPEED_2GHZ: 6927 rdp_speed = RDP_PS_2GB; 6928 break; 6929 case LPFC_LINK_SPEED_4GHZ: 6930 rdp_speed = RDP_PS_4GB; 6931 break; 6932 case LPFC_LINK_SPEED_8GHZ: 6933 rdp_speed = RDP_PS_8GB; 6934 break; 6935 case LPFC_LINK_SPEED_10GHZ: 6936 rdp_speed = RDP_PS_10GB; 6937 break; 6938 case LPFC_LINK_SPEED_16GHZ: 6939 rdp_speed = RDP_PS_16GB; 6940 break; 6941 case LPFC_LINK_SPEED_32GHZ: 6942 rdp_speed = RDP_PS_32GB; 6943 break; 6944 case LPFC_LINK_SPEED_64GHZ: 6945 rdp_speed = RDP_PS_64GB; 6946 break; 6947 case LPFC_LINK_SPEED_128GHZ: 6948 rdp_speed = RDP_PS_128GB; 6949 break; 6950 case LPFC_LINK_SPEED_256GHZ: 6951 rdp_speed = RDP_PS_256GB; 6952 break; 6953 default: 6954 rdp_speed = RDP_PS_UNKNOWN; 6955 break; 6956 } 6957 6958 desc->info.port_speed.speed = cpu_to_be16(rdp_speed); 6959 6960 if (phba->lmt & LMT_256Gb) 6961 rdp_cap |= RDP_PS_256GB; 6962 if (phba->lmt & LMT_128Gb) 6963 rdp_cap |= RDP_PS_128GB; 6964 if (phba->lmt & LMT_64Gb) 6965 rdp_cap |= RDP_PS_64GB; 6966 if (phba->lmt & LMT_32Gb) 6967 rdp_cap |= RDP_PS_32GB; 6968 if (phba->lmt & LMT_16Gb) 6969 rdp_cap |= RDP_PS_16GB; 6970 if (phba->lmt & LMT_10Gb) 6971 rdp_cap |= RDP_PS_10GB; 6972 if (phba->lmt & LMT_8Gb) 6973 rdp_cap |= RDP_PS_8GB; 6974 if (phba->lmt & LMT_4Gb) 6975 rdp_cap |= RDP_PS_4GB; 6976 if (phba->lmt & LMT_2Gb) 6977 rdp_cap |= RDP_PS_2GB; 6978 if (phba->lmt & LMT_1Gb) 6979 rdp_cap |= RDP_PS_1GB; 6980 6981 if (rdp_cap == 0) 6982 rdp_cap = RDP_CAP_UNKNOWN; 6983 if (phba->cfg_link_speed != LPFC_USER_LINK_SPEED_AUTO) 6984 rdp_cap |= RDP_CAP_USER_CONFIGURED; 6985 6986 desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap); 6987 desc->length = cpu_to_be32(sizeof(desc->info)); 6988 return sizeof(struct fc_rdp_port_speed_desc); 6989 } 6990 6991 static uint32_t 6992 lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc, 6993 struct lpfc_vport *vport) 6994 { 6995 6996 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG); 6997 6998 memcpy(desc->port_names.wwnn, &vport->fc_nodename, 6999 sizeof(desc->port_names.wwnn)); 7000 7001 memcpy(desc->port_names.wwpn, &vport->fc_portname, 7002 sizeof(desc->port_names.wwpn)); 7003 7004 desc->length = cpu_to_be32(sizeof(desc->port_names)); 7005 return sizeof(struct fc_rdp_port_name_desc); 7006 } 7007 7008 static uint32_t 7009 lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc, 7010 struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 7011 { 7012 7013 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG); 7014 if (vport->fc_flag & FC_FABRIC) { 7015 memcpy(desc->port_names.wwnn, &vport->fabric_nodename, 7016 sizeof(desc->port_names.wwnn)); 7017 7018 memcpy(desc->port_names.wwpn, &vport->fabric_portname, 7019 sizeof(desc->port_names.wwpn)); 7020 } else { /* Point to Point */ 7021 memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename, 7022 sizeof(desc->port_names.wwnn)); 7023 7024 memcpy(desc->port_names.wwpn, &ndlp->nlp_portname, 7025 sizeof(desc->port_names.wwpn)); 7026 } 7027 7028 desc->length = cpu_to_be32(sizeof(desc->port_names)); 7029 return sizeof(struct fc_rdp_port_name_desc); 7030 } 7031 7032 static void 7033 lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context, 7034 int status) 7035 { 7036 struct lpfc_nodelist *ndlp = rdp_context->ndlp; 7037 struct lpfc_vport *vport = ndlp->vport; 7038 struct lpfc_iocbq *elsiocb; 7039 struct ulp_bde64 *bpl; 7040 IOCB_t *icmd; 7041 union lpfc_wqe128 *wqe; 7042 uint8_t *pcmd; 7043 struct ls_rjt *stat; 7044 struct fc_rdp_res_frame *rdp_res; 7045 uint32_t cmdsize, len; 7046 uint16_t *flag_ptr; 7047 int rc; 7048 u32 ulp_context; 7049 7050 if (status != SUCCESS) 7051 goto error; 7052 7053 /* This will change once we know the true size of the RDP payload */ 7054 cmdsize = sizeof(struct fc_rdp_res_frame); 7055 7056 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, 7057 lpfc_max_els_tries, rdp_context->ndlp, 7058 rdp_context->ndlp->nlp_DID, ELS_CMD_ACC); 7059 if (!elsiocb) 7060 goto free_rdp_context; 7061 7062 ulp_context = get_job_ulpcontext(phba, elsiocb); 7063 if (phba->sli_rev == LPFC_SLI_REV4) { 7064 wqe = &elsiocb->wqe; 7065 /* ox-id of the frame */ 7066 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7067 rdp_context->ox_id); 7068 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 7069 rdp_context->rx_id); 7070 } else { 7071 icmd = &elsiocb->iocb; 7072 icmd->ulpContext = rdp_context->rx_id; 7073 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id; 7074 } 7075 7076 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 7077 "2171 Xmit RDP response tag x%x xri x%x, " 7078 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x", 7079 elsiocb->iotag, ulp_context, 7080 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 7081 ndlp->nlp_rpi); 7082 rdp_res = (struct fc_rdp_res_frame *)elsiocb->cmd_dmabuf->virt; 7083 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7084 memset(pcmd, 0, sizeof(struct fc_rdp_res_frame)); 7085 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 7086 7087 /* Update Alarm and Warning */ 7088 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_ALARM_FLAGS); 7089 phba->sfp_alarm |= *flag_ptr; 7090 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_WARNING_FLAGS); 7091 phba->sfp_warning |= *flag_ptr; 7092 7093 /* For RDP payload */ 7094 len = 8; 7095 len += lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc *) 7096 (len + pcmd), ELS_CMD_RDP); 7097 7098 len += lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc *)(len + pcmd), 7099 rdp_context->page_a0, rdp_context->page_a2); 7100 len += lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc *)(len + pcmd), 7101 phba); 7102 len += lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc *) 7103 (len + pcmd), &rdp_context->link_stat); 7104 len += lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc *) 7105 (len + pcmd), vport); 7106 len += lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc *) 7107 (len + pcmd), vport, ndlp); 7108 len += lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc *)(len + pcmd), 7109 &rdp_context->link_stat); 7110 len += lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc *)(len + pcmd), 7111 &rdp_context->link_stat, vport); 7112 len += lpfc_rdp_res_oed_temp_desc(phba, 7113 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7114 rdp_context->page_a2); 7115 len += lpfc_rdp_res_oed_voltage_desc(phba, 7116 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7117 rdp_context->page_a2); 7118 len += lpfc_rdp_res_oed_txbias_desc(phba, 7119 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7120 rdp_context->page_a2); 7121 len += lpfc_rdp_res_oed_txpower_desc(phba, 7122 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7123 rdp_context->page_a2); 7124 len += lpfc_rdp_res_oed_rxpower_desc(phba, 7125 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7126 rdp_context->page_a2); 7127 len += lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc *)(len + pcmd), 7128 rdp_context->page_a0, vport); 7129 7130 rdp_res->length = cpu_to_be32(len - 8); 7131 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7132 7133 /* Now that we know the true size of the payload, update the BPL */ 7134 bpl = (struct ulp_bde64 *)elsiocb->bpl_dmabuf->virt; 7135 bpl->tus.f.bdeSize = len; 7136 bpl->tus.f.bdeFlags = 0; 7137 bpl->tus.w = le32_to_cpu(bpl->tus.w); 7138 7139 phba->fc_stat.elsXmitACC++; 7140 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7141 if (!elsiocb->ndlp) { 7142 lpfc_els_free_iocb(phba, elsiocb); 7143 goto free_rdp_context; 7144 } 7145 7146 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7147 if (rc == IOCB_ERROR) { 7148 lpfc_els_free_iocb(phba, elsiocb); 7149 lpfc_nlp_put(ndlp); 7150 } 7151 7152 goto free_rdp_context; 7153 7154 error: 7155 cmdsize = 2 * sizeof(uint32_t); 7156 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries, 7157 ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT); 7158 if (!elsiocb) 7159 goto free_rdp_context; 7160 7161 if (phba->sli_rev == LPFC_SLI_REV4) { 7162 wqe = &elsiocb->wqe; 7163 /* ox-id of the frame */ 7164 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7165 rdp_context->ox_id); 7166 bf_set(wqe_ctxt_tag, 7167 &wqe->xmit_els_rsp.wqe_com, 7168 rdp_context->rx_id); 7169 } else { 7170 icmd = &elsiocb->iocb; 7171 icmd->ulpContext = rdp_context->rx_id; 7172 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id; 7173 } 7174 7175 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7176 7177 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; 7178 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t)); 7179 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 7180 7181 phba->fc_stat.elsXmitLSRJT++; 7182 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7183 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7184 if (!elsiocb->ndlp) { 7185 lpfc_els_free_iocb(phba, elsiocb); 7186 goto free_rdp_context; 7187 } 7188 7189 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7190 if (rc == IOCB_ERROR) { 7191 lpfc_els_free_iocb(phba, elsiocb); 7192 lpfc_nlp_put(ndlp); 7193 } 7194 7195 free_rdp_context: 7196 /* This reference put is for the original unsolicited RDP. If the 7197 * prep failed, there is no reference to remove. 7198 */ 7199 lpfc_nlp_put(ndlp); 7200 kfree(rdp_context); 7201 } 7202 7203 static int 7204 lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context) 7205 { 7206 LPFC_MBOXQ_t *mbox = NULL; 7207 int rc; 7208 7209 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7210 if (!mbox) { 7211 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS, 7212 "7105 failed to allocate mailbox memory"); 7213 return 1; 7214 } 7215 7216 if (lpfc_sli4_dump_page_a0(phba, mbox)) 7217 goto rdp_fail; 7218 mbox->vport = rdp_context->ndlp->vport; 7219 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0; 7220 mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context; 7221 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 7222 if (rc == MBX_NOT_FINISHED) { 7223 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 7224 return 1; 7225 } 7226 7227 return 0; 7228 7229 rdp_fail: 7230 mempool_free(mbox, phba->mbox_mem_pool); 7231 return 1; 7232 } 7233 7234 int lpfc_get_sfp_info_wait(struct lpfc_hba *phba, 7235 struct lpfc_rdp_context *rdp_context) 7236 { 7237 LPFC_MBOXQ_t *mbox = NULL; 7238 int rc; 7239 struct lpfc_dmabuf *mp; 7240 struct lpfc_dmabuf *mpsave; 7241 void *virt; 7242 MAILBOX_t *mb; 7243 7244 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7245 if (!mbox) { 7246 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS, 7247 "7205 failed to allocate mailbox memory"); 7248 return 1; 7249 } 7250 7251 if (lpfc_sli4_dump_page_a0(phba, mbox)) 7252 goto sfp_fail; 7253 mp = mbox->ctx_buf; 7254 mpsave = mp; 7255 virt = mp->virt; 7256 if (phba->sli_rev < LPFC_SLI_REV4) { 7257 mb = &mbox->u.mb; 7258 mb->un.varDmp.cv = 1; 7259 mb->un.varDmp.co = 1; 7260 mb->un.varWords[2] = 0; 7261 mb->un.varWords[3] = DMP_SFF_PAGE_A0_SIZE / 4; 7262 mb->un.varWords[4] = 0; 7263 mb->un.varWords[5] = 0; 7264 mb->un.varWords[6] = 0; 7265 mb->un.varWords[7] = 0; 7266 mb->un.varWords[8] = 0; 7267 mb->un.varWords[9] = 0; 7268 mb->un.varWords[10] = 0; 7269 mbox->in_ext_byte_len = DMP_SFF_PAGE_A0_SIZE; 7270 mbox->out_ext_byte_len = DMP_SFF_PAGE_A0_SIZE; 7271 mbox->mbox_offset_word = 5; 7272 mbox->ctx_buf = virt; 7273 } else { 7274 bf_set(lpfc_mbx_memory_dump_type3_length, 7275 &mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A0_SIZE); 7276 mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys); 7277 mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys); 7278 } 7279 mbox->vport = phba->pport; 7280 mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context; 7281 7282 rc = lpfc_sli_issue_mbox_wait(phba, mbox, 30); 7283 if (rc == MBX_NOT_FINISHED) { 7284 rc = 1; 7285 goto error; 7286 } 7287 7288 if (phba->sli_rev == LPFC_SLI_REV4) 7289 mp = (struct lpfc_dmabuf *)(mbox->ctx_buf); 7290 else 7291 mp = mpsave; 7292 7293 if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) { 7294 rc = 1; 7295 goto error; 7296 } 7297 7298 lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a0, 7299 DMP_SFF_PAGE_A0_SIZE); 7300 7301 memset(mbox, 0, sizeof(*mbox)); 7302 memset(mp->virt, 0, DMP_SFF_PAGE_A2_SIZE); 7303 INIT_LIST_HEAD(&mp->list); 7304 7305 /* save address for completion */ 7306 mbox->ctx_buf = mp; 7307 mbox->vport = phba->pport; 7308 7309 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_DUMP_MEMORY); 7310 bf_set(lpfc_mbx_memory_dump_type3_type, 7311 &mbox->u.mqe.un.mem_dump_type3, DMP_LMSD); 7312 bf_set(lpfc_mbx_memory_dump_type3_link, 7313 &mbox->u.mqe.un.mem_dump_type3, phba->sli4_hba.physical_port); 7314 bf_set(lpfc_mbx_memory_dump_type3_page_no, 7315 &mbox->u.mqe.un.mem_dump_type3, DMP_PAGE_A2); 7316 if (phba->sli_rev < LPFC_SLI_REV4) { 7317 mb = &mbox->u.mb; 7318 mb->un.varDmp.cv = 1; 7319 mb->un.varDmp.co = 1; 7320 mb->un.varWords[2] = 0; 7321 mb->un.varWords[3] = DMP_SFF_PAGE_A2_SIZE / 4; 7322 mb->un.varWords[4] = 0; 7323 mb->un.varWords[5] = 0; 7324 mb->un.varWords[6] = 0; 7325 mb->un.varWords[7] = 0; 7326 mb->un.varWords[8] = 0; 7327 mb->un.varWords[9] = 0; 7328 mb->un.varWords[10] = 0; 7329 mbox->in_ext_byte_len = DMP_SFF_PAGE_A2_SIZE; 7330 mbox->out_ext_byte_len = DMP_SFF_PAGE_A2_SIZE; 7331 mbox->mbox_offset_word = 5; 7332 mbox->ctx_buf = virt; 7333 } else { 7334 bf_set(lpfc_mbx_memory_dump_type3_length, 7335 &mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A2_SIZE); 7336 mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys); 7337 mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys); 7338 } 7339 7340 mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context; 7341 rc = lpfc_sli_issue_mbox_wait(phba, mbox, 30); 7342 if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) { 7343 rc = 1; 7344 goto error; 7345 } 7346 rc = 0; 7347 7348 lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a2, 7349 DMP_SFF_PAGE_A2_SIZE); 7350 7351 error: 7352 mbox->ctx_buf = mpsave; 7353 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 7354 7355 return rc; 7356 7357 sfp_fail: 7358 mempool_free(mbox, phba->mbox_mem_pool); 7359 return 1; 7360 } 7361 7362 /* 7363 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS. 7364 * @vport: pointer to a host virtual N_Port data structure. 7365 * @cmdiocb: pointer to lpfc command iocb data structure. 7366 * @ndlp: pointer to a node-list data structure. 7367 * 7368 * This routine processes an unsolicited RDP(Read Diagnostic Parameters) 7369 * IOCB. First, the payload of the unsolicited RDP is checked. 7370 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3 7371 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2, 7372 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl 7373 * gather all data and send RDP response. 7374 * 7375 * Return code 7376 * 0 - Sent the acc response 7377 * 1 - Sent the reject response. 7378 */ 7379 static int 7380 lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 7381 struct lpfc_nodelist *ndlp) 7382 { 7383 struct lpfc_hba *phba = vport->phba; 7384 struct lpfc_dmabuf *pcmd; 7385 uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE; 7386 struct fc_rdp_req_frame *rdp_req; 7387 struct lpfc_rdp_context *rdp_context; 7388 union lpfc_wqe128 *cmd = NULL; 7389 struct ls_rjt stat; 7390 7391 if (phba->sli_rev < LPFC_SLI_REV4 || 7392 bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 7393 LPFC_SLI_INTF_IF_TYPE_2) { 7394 rjt_err = LSRJT_UNABLE_TPC; 7395 rjt_expl = LSEXP_REQ_UNSUPPORTED; 7396 goto error; 7397 } 7398 7399 if (phba->sli_rev < LPFC_SLI_REV4 || (phba->hba_flag & HBA_FCOE_MODE)) { 7400 rjt_err = LSRJT_UNABLE_TPC; 7401 rjt_expl = LSEXP_REQ_UNSUPPORTED; 7402 goto error; 7403 } 7404 7405 pcmd = cmdiocb->cmd_dmabuf; 7406 rdp_req = (struct fc_rdp_req_frame *) pcmd->virt; 7407 7408 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 7409 "2422 ELS RDP Request " 7410 "dec len %d tag x%x port_id %d len %d\n", 7411 be32_to_cpu(rdp_req->rdp_des_length), 7412 be32_to_cpu(rdp_req->nport_id_desc.tag), 7413 be32_to_cpu(rdp_req->nport_id_desc.nport_id), 7414 be32_to_cpu(rdp_req->nport_id_desc.length)); 7415 7416 if (sizeof(struct fc_rdp_nport_desc) != 7417 be32_to_cpu(rdp_req->rdp_des_length)) 7418 goto rjt_logerr; 7419 if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag)) 7420 goto rjt_logerr; 7421 if (RDP_NPORT_ID_SIZE != 7422 be32_to_cpu(rdp_req->nport_id_desc.length)) 7423 goto rjt_logerr; 7424 rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL); 7425 if (!rdp_context) { 7426 rjt_err = LSRJT_UNABLE_TPC; 7427 goto error; 7428 } 7429 7430 cmd = &cmdiocb->wqe; 7431 rdp_context->ndlp = lpfc_nlp_get(ndlp); 7432 if (!rdp_context->ndlp) { 7433 kfree(rdp_context); 7434 rjt_err = LSRJT_UNABLE_TPC; 7435 goto error; 7436 } 7437 rdp_context->ox_id = bf_get(wqe_rcvoxid, 7438 &cmd->xmit_els_rsp.wqe_com); 7439 rdp_context->rx_id = bf_get(wqe_ctxt_tag, 7440 &cmd->xmit_els_rsp.wqe_com); 7441 rdp_context->cmpl = lpfc_els_rdp_cmpl; 7442 if (lpfc_get_rdp_info(phba, rdp_context)) { 7443 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS, 7444 "2423 Unable to send mailbox"); 7445 kfree(rdp_context); 7446 rjt_err = LSRJT_UNABLE_TPC; 7447 lpfc_nlp_put(ndlp); 7448 goto error; 7449 } 7450 7451 return 0; 7452 7453 rjt_logerr: 7454 rjt_err = LSRJT_LOGICAL_ERR; 7455 7456 error: 7457 memset(&stat, 0, sizeof(stat)); 7458 stat.un.b.lsRjtRsnCode = rjt_err; 7459 stat.un.b.lsRjtRsnCodeExp = rjt_expl; 7460 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 7461 return 1; 7462 } 7463 7464 7465 static void 7466 lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 7467 { 7468 MAILBOX_t *mb; 7469 IOCB_t *icmd; 7470 union lpfc_wqe128 *wqe; 7471 uint8_t *pcmd; 7472 struct lpfc_iocbq *elsiocb; 7473 struct lpfc_nodelist *ndlp; 7474 struct ls_rjt *stat; 7475 union lpfc_sli4_cfg_shdr *shdr; 7476 struct lpfc_lcb_context *lcb_context; 7477 struct fc_lcb_res_frame *lcb_res; 7478 uint32_t cmdsize, shdr_status, shdr_add_status; 7479 int rc; 7480 7481 mb = &pmb->u.mb; 7482 lcb_context = (struct lpfc_lcb_context *)pmb->ctx_ndlp; 7483 ndlp = lcb_context->ndlp; 7484 pmb->ctx_ndlp = NULL; 7485 pmb->ctx_buf = NULL; 7486 7487 shdr = (union lpfc_sli4_cfg_shdr *) 7488 &pmb->u.mqe.un.beacon_config.header.cfg_shdr; 7489 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7490 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7491 7492 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX, 7493 "0194 SET_BEACON_CONFIG mailbox " 7494 "completed with status x%x add_status x%x," 7495 " mbx status x%x\n", 7496 shdr_status, shdr_add_status, mb->mbxStatus); 7497 7498 if ((mb->mbxStatus != MBX_SUCCESS) || shdr_status || 7499 (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE) || 7500 (shdr_add_status == ADD_STATUS_INVALID_REQUEST)) { 7501 mempool_free(pmb, phba->mbox_mem_pool); 7502 goto error; 7503 } 7504 7505 mempool_free(pmb, phba->mbox_mem_pool); 7506 cmdsize = sizeof(struct fc_lcb_res_frame); 7507 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 7508 lpfc_max_els_tries, ndlp, 7509 ndlp->nlp_DID, ELS_CMD_ACC); 7510 7511 /* Decrement the ndlp reference count from previous mbox command */ 7512 lpfc_nlp_put(ndlp); 7513 7514 if (!elsiocb) 7515 goto free_lcb_context; 7516 7517 lcb_res = (struct fc_lcb_res_frame *)elsiocb->cmd_dmabuf->virt; 7518 7519 memset(lcb_res, 0, sizeof(struct fc_lcb_res_frame)); 7520 7521 if (phba->sli_rev == LPFC_SLI_REV4) { 7522 wqe = &elsiocb->wqe; 7523 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, lcb_context->rx_id); 7524 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7525 lcb_context->ox_id); 7526 } else { 7527 icmd = &elsiocb->iocb; 7528 icmd->ulpContext = lcb_context->rx_id; 7529 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id; 7530 } 7531 7532 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7533 *((uint32_t *)(pcmd)) = ELS_CMD_ACC; 7534 lcb_res->lcb_sub_command = lcb_context->sub_command; 7535 lcb_res->lcb_type = lcb_context->type; 7536 lcb_res->capability = lcb_context->capability; 7537 lcb_res->lcb_frequency = lcb_context->frequency; 7538 lcb_res->lcb_duration = lcb_context->duration; 7539 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7540 phba->fc_stat.elsXmitACC++; 7541 7542 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7543 if (!elsiocb->ndlp) { 7544 lpfc_els_free_iocb(phba, elsiocb); 7545 goto out; 7546 } 7547 7548 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7549 if (rc == IOCB_ERROR) { 7550 lpfc_els_free_iocb(phba, elsiocb); 7551 lpfc_nlp_put(ndlp); 7552 } 7553 out: 7554 kfree(lcb_context); 7555 return; 7556 7557 error: 7558 cmdsize = sizeof(struct fc_lcb_res_frame); 7559 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 7560 lpfc_max_els_tries, ndlp, 7561 ndlp->nlp_DID, ELS_CMD_LS_RJT); 7562 lpfc_nlp_put(ndlp); 7563 if (!elsiocb) 7564 goto free_lcb_context; 7565 7566 if (phba->sli_rev == LPFC_SLI_REV4) { 7567 wqe = &elsiocb->wqe; 7568 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, lcb_context->rx_id); 7569 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7570 lcb_context->ox_id); 7571 } else { 7572 icmd = &elsiocb->iocb; 7573 icmd->ulpContext = lcb_context->rx_id; 7574 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id; 7575 } 7576 7577 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7578 7579 *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT; 7580 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t)); 7581 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 7582 7583 if (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE) 7584 stat->un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 7585 7586 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7587 phba->fc_stat.elsXmitLSRJT++; 7588 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7589 if (!elsiocb->ndlp) { 7590 lpfc_els_free_iocb(phba, elsiocb); 7591 goto free_lcb_context; 7592 } 7593 7594 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7595 if (rc == IOCB_ERROR) { 7596 lpfc_els_free_iocb(phba, elsiocb); 7597 lpfc_nlp_put(ndlp); 7598 } 7599 free_lcb_context: 7600 kfree(lcb_context); 7601 } 7602 7603 static int 7604 lpfc_sli4_set_beacon(struct lpfc_vport *vport, 7605 struct lpfc_lcb_context *lcb_context, 7606 uint32_t beacon_state) 7607 { 7608 struct lpfc_hba *phba = vport->phba; 7609 union lpfc_sli4_cfg_shdr *cfg_shdr; 7610 LPFC_MBOXQ_t *mbox = NULL; 7611 uint32_t len; 7612 int rc; 7613 7614 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7615 if (!mbox) 7616 return 1; 7617 7618 cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr; 7619 len = sizeof(struct lpfc_mbx_set_beacon_config) - 7620 sizeof(struct lpfc_sli4_cfg_mhdr); 7621 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, 7622 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len, 7623 LPFC_SLI4_MBX_EMBED); 7624 mbox->ctx_ndlp = (void *)lcb_context; 7625 mbox->vport = phba->pport; 7626 mbox->mbox_cmpl = lpfc_els_lcb_rsp; 7627 bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config, 7628 phba->sli4_hba.physical_port); 7629 bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config, 7630 beacon_state); 7631 mbox->u.mqe.un.beacon_config.word5 = 0; /* Reserved */ 7632 7633 /* 7634 * Check bv1s bit before issuing the mailbox 7635 * if bv1s == 1, LCB V1 supported 7636 * else, LCB V0 supported 7637 */ 7638 7639 if (phba->sli4_hba.pc_sli4_params.bv1s) { 7640 /* COMMON_SET_BEACON_CONFIG_V1 */ 7641 cfg_shdr->request.word9 = BEACON_VERSION_V1; 7642 lcb_context->capability |= LCB_CAPABILITY_DURATION; 7643 bf_set(lpfc_mbx_set_beacon_port_type, 7644 &mbox->u.mqe.un.beacon_config, 0); 7645 bf_set(lpfc_mbx_set_beacon_duration_v1, 7646 &mbox->u.mqe.un.beacon_config, 7647 be16_to_cpu(lcb_context->duration)); 7648 } else { 7649 /* COMMON_SET_BEACON_CONFIG_V0 */ 7650 if (be16_to_cpu(lcb_context->duration) != 0) { 7651 mempool_free(mbox, phba->mbox_mem_pool); 7652 return 1; 7653 } 7654 cfg_shdr->request.word9 = BEACON_VERSION_V0; 7655 lcb_context->capability &= ~(LCB_CAPABILITY_DURATION); 7656 bf_set(lpfc_mbx_set_beacon_state, 7657 &mbox->u.mqe.un.beacon_config, beacon_state); 7658 bf_set(lpfc_mbx_set_beacon_port_type, 7659 &mbox->u.mqe.un.beacon_config, 1); 7660 bf_set(lpfc_mbx_set_beacon_duration, 7661 &mbox->u.mqe.un.beacon_config, 7662 be16_to_cpu(lcb_context->duration)); 7663 } 7664 7665 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 7666 if (rc == MBX_NOT_FINISHED) { 7667 mempool_free(mbox, phba->mbox_mem_pool); 7668 return 1; 7669 } 7670 7671 return 0; 7672 } 7673 7674 7675 /** 7676 * lpfc_els_rcv_lcb - Process an unsolicited LCB 7677 * @vport: pointer to a host virtual N_Port data structure. 7678 * @cmdiocb: pointer to lpfc command iocb data structure. 7679 * @ndlp: pointer to a node-list data structure. 7680 * 7681 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB. 7682 * First, the payload of the unsolicited LCB is checked. 7683 * Then based on Subcommand beacon will either turn on or off. 7684 * 7685 * Return code 7686 * 0 - Sent the acc response 7687 * 1 - Sent the reject response. 7688 **/ 7689 static int 7690 lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 7691 struct lpfc_nodelist *ndlp) 7692 { 7693 struct lpfc_hba *phba = vport->phba; 7694 struct lpfc_dmabuf *pcmd; 7695 uint8_t *lp; 7696 struct fc_lcb_request_frame *beacon; 7697 struct lpfc_lcb_context *lcb_context; 7698 u8 state, rjt_err = 0; 7699 struct ls_rjt stat; 7700 7701 pcmd = cmdiocb->cmd_dmabuf; 7702 lp = (uint8_t *)pcmd->virt; 7703 beacon = (struct fc_lcb_request_frame *)pcmd->virt; 7704 7705 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 7706 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x " 7707 "type x%x frequency %x duration x%x\n", 7708 lp[0], lp[1], lp[2], 7709 beacon->lcb_command, 7710 beacon->lcb_sub_command, 7711 beacon->lcb_type, 7712 beacon->lcb_frequency, 7713 be16_to_cpu(beacon->lcb_duration)); 7714 7715 if (beacon->lcb_sub_command != LPFC_LCB_ON && 7716 beacon->lcb_sub_command != LPFC_LCB_OFF) { 7717 rjt_err = LSRJT_CMD_UNSUPPORTED; 7718 goto rjt; 7719 } 7720 7721 if (phba->sli_rev < LPFC_SLI_REV4 || 7722 phba->hba_flag & HBA_FCOE_MODE || 7723 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 7724 LPFC_SLI_INTF_IF_TYPE_2)) { 7725 rjt_err = LSRJT_CMD_UNSUPPORTED; 7726 goto rjt; 7727 } 7728 7729 lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL); 7730 if (!lcb_context) { 7731 rjt_err = LSRJT_UNABLE_TPC; 7732 goto rjt; 7733 } 7734 7735 state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0; 7736 lcb_context->sub_command = beacon->lcb_sub_command; 7737 lcb_context->capability = 0; 7738 lcb_context->type = beacon->lcb_type; 7739 lcb_context->frequency = beacon->lcb_frequency; 7740 lcb_context->duration = beacon->lcb_duration; 7741 lcb_context->ox_id = get_job_rcvoxid(phba, cmdiocb); 7742 lcb_context->rx_id = get_job_ulpcontext(phba, cmdiocb); 7743 lcb_context->ndlp = lpfc_nlp_get(ndlp); 7744 if (!lcb_context->ndlp) { 7745 rjt_err = LSRJT_UNABLE_TPC; 7746 goto rjt_free; 7747 } 7748 7749 if (lpfc_sli4_set_beacon(vport, lcb_context, state)) { 7750 lpfc_printf_vlog(ndlp->vport, KERN_ERR, LOG_TRACE_EVENT, 7751 "0193 failed to send mail box"); 7752 lpfc_nlp_put(ndlp); 7753 rjt_err = LSRJT_UNABLE_TPC; 7754 goto rjt_free; 7755 } 7756 return 0; 7757 7758 rjt_free: 7759 kfree(lcb_context); 7760 rjt: 7761 memset(&stat, 0, sizeof(stat)); 7762 stat.un.b.lsRjtRsnCode = rjt_err; 7763 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 7764 return 1; 7765 } 7766 7767 7768 /** 7769 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport 7770 * @vport: pointer to a host virtual N_Port data structure. 7771 * 7772 * This routine cleans up any Registration State Change Notification 7773 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the 7774 * @vport together with the host_lock is used to prevent multiple thread 7775 * trying to access the RSCN array on a same @vport at the same time. 7776 **/ 7777 void 7778 lpfc_els_flush_rscn(struct lpfc_vport *vport) 7779 { 7780 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7781 struct lpfc_hba *phba = vport->phba; 7782 int i; 7783 7784 spin_lock_irq(shost->host_lock); 7785 if (vport->fc_rscn_flush) { 7786 /* Another thread is walking fc_rscn_id_list on this vport */ 7787 spin_unlock_irq(shost->host_lock); 7788 return; 7789 } 7790 /* Indicate we are walking lpfc_els_flush_rscn on this vport */ 7791 vport->fc_rscn_flush = 1; 7792 spin_unlock_irq(shost->host_lock); 7793 7794 for (i = 0; i < vport->fc_rscn_id_cnt; i++) { 7795 lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); 7796 vport->fc_rscn_id_list[i] = NULL; 7797 } 7798 spin_lock_irq(shost->host_lock); 7799 vport->fc_rscn_id_cnt = 0; 7800 vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY); 7801 spin_unlock_irq(shost->host_lock); 7802 lpfc_can_disctmo(vport); 7803 /* Indicate we are done walking this fc_rscn_id_list */ 7804 vport->fc_rscn_flush = 0; 7805 } 7806 7807 /** 7808 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did 7809 * @vport: pointer to a host virtual N_Port data structure. 7810 * @did: remote destination port identifier. 7811 * 7812 * This routine checks whether there is any pending Registration State 7813 * Configuration Notification (RSCN) to a @did on @vport. 7814 * 7815 * Return code 7816 * None zero - The @did matched with a pending rscn 7817 * 0 - not able to match @did with a pending rscn 7818 **/ 7819 int 7820 lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) 7821 { 7822 D_ID ns_did; 7823 D_ID rscn_did; 7824 uint32_t *lp; 7825 uint32_t payload_len, i; 7826 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7827 7828 ns_did.un.word = did; 7829 7830 /* Never match fabric nodes for RSCNs */ 7831 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) 7832 return 0; 7833 7834 /* If we are doing a FULL RSCN rediscovery, match everything */ 7835 if (vport->fc_flag & FC_RSCN_DISCOVERY) 7836 return did; 7837 7838 spin_lock_irq(shost->host_lock); 7839 if (vport->fc_rscn_flush) { 7840 /* Another thread is walking fc_rscn_id_list on this vport */ 7841 spin_unlock_irq(shost->host_lock); 7842 return 0; 7843 } 7844 /* Indicate we are walking fc_rscn_id_list on this vport */ 7845 vport->fc_rscn_flush = 1; 7846 spin_unlock_irq(shost->host_lock); 7847 for (i = 0; i < vport->fc_rscn_id_cnt; i++) { 7848 lp = vport->fc_rscn_id_list[i]->virt; 7849 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); 7850 payload_len -= sizeof(uint32_t); /* take off word 0 */ 7851 while (payload_len) { 7852 rscn_did.un.word = be32_to_cpu(*lp++); 7853 payload_len -= sizeof(uint32_t); 7854 switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) { 7855 case RSCN_ADDRESS_FORMAT_PORT: 7856 if ((ns_did.un.b.domain == rscn_did.un.b.domain) 7857 && (ns_did.un.b.area == rscn_did.un.b.area) 7858 && (ns_did.un.b.id == rscn_did.un.b.id)) 7859 goto return_did_out; 7860 break; 7861 case RSCN_ADDRESS_FORMAT_AREA: 7862 if ((ns_did.un.b.domain == rscn_did.un.b.domain) 7863 && (ns_did.un.b.area == rscn_did.un.b.area)) 7864 goto return_did_out; 7865 break; 7866 case RSCN_ADDRESS_FORMAT_DOMAIN: 7867 if (ns_did.un.b.domain == rscn_did.un.b.domain) 7868 goto return_did_out; 7869 break; 7870 case RSCN_ADDRESS_FORMAT_FABRIC: 7871 goto return_did_out; 7872 } 7873 } 7874 } 7875 /* Indicate we are done with walking fc_rscn_id_list on this vport */ 7876 vport->fc_rscn_flush = 0; 7877 return 0; 7878 return_did_out: 7879 /* Indicate we are done with walking fc_rscn_id_list on this vport */ 7880 vport->fc_rscn_flush = 0; 7881 return did; 7882 } 7883 7884 /** 7885 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn 7886 * @vport: pointer to a host virtual N_Port data structure. 7887 * 7888 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the 7889 * state machine for a @vport's nodes that are with pending RSCN (Registration 7890 * State Change Notification). 7891 * 7892 * Return code 7893 * 0 - Successful (currently alway return 0) 7894 **/ 7895 static int 7896 lpfc_rscn_recovery_check(struct lpfc_vport *vport) 7897 { 7898 struct lpfc_nodelist *ndlp = NULL, *n; 7899 7900 /* Move all affected nodes by pending RSCNs to NPR state. */ 7901 list_for_each_entry_safe(ndlp, n, &vport->fc_nodes, nlp_listp) { 7902 if ((ndlp->nlp_state == NLP_STE_UNUSED_NODE) || 7903 !lpfc_rscn_payload_check(vport, ndlp->nlp_DID)) 7904 continue; 7905 7906 /* NVME Target mode does not do RSCN Recovery. */ 7907 if (vport->phba->nvmet_support) 7908 continue; 7909 7910 /* If we are in the process of doing discovery on this 7911 * NPort, let it continue on its own. 7912 */ 7913 switch (ndlp->nlp_state) { 7914 case NLP_STE_PLOGI_ISSUE: 7915 case NLP_STE_ADISC_ISSUE: 7916 case NLP_STE_REG_LOGIN_ISSUE: 7917 case NLP_STE_PRLI_ISSUE: 7918 case NLP_STE_LOGO_ISSUE: 7919 continue; 7920 } 7921 7922 lpfc_disc_state_machine(vport, ndlp, NULL, 7923 NLP_EVT_DEVICE_RECOVERY); 7924 lpfc_cancel_retry_delay_tmo(vport, ndlp); 7925 } 7926 return 0; 7927 } 7928 7929 /** 7930 * lpfc_send_rscn_event - Send an RSCN event to management application 7931 * @vport: pointer to a host virtual N_Port data structure. 7932 * @cmdiocb: pointer to lpfc command iocb data structure. 7933 * 7934 * lpfc_send_rscn_event sends an RSCN netlink event to management 7935 * applications. 7936 */ 7937 static void 7938 lpfc_send_rscn_event(struct lpfc_vport *vport, 7939 struct lpfc_iocbq *cmdiocb) 7940 { 7941 struct lpfc_dmabuf *pcmd; 7942 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7943 uint32_t *payload_ptr; 7944 uint32_t payload_len; 7945 struct lpfc_rscn_event_header *rscn_event_data; 7946 7947 pcmd = cmdiocb->cmd_dmabuf; 7948 payload_ptr = (uint32_t *) pcmd->virt; 7949 payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK); 7950 7951 rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) + 7952 payload_len, GFP_KERNEL); 7953 if (!rscn_event_data) { 7954 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 7955 "0147 Failed to allocate memory for RSCN event\n"); 7956 return; 7957 } 7958 rscn_event_data->event_type = FC_REG_RSCN_EVENT; 7959 rscn_event_data->payload_length = payload_len; 7960 memcpy(rscn_event_data->rscn_payload, payload_ptr, 7961 payload_len); 7962 7963 fc_host_post_vendor_event(shost, 7964 fc_get_event_number(), 7965 sizeof(struct lpfc_rscn_event_header) + payload_len, 7966 (char *)rscn_event_data, 7967 LPFC_NL_VENDOR_ID); 7968 7969 kfree(rscn_event_data); 7970 } 7971 7972 /** 7973 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb 7974 * @vport: pointer to a host virtual N_Port data structure. 7975 * @cmdiocb: pointer to lpfc command iocb data structure. 7976 * @ndlp: pointer to a node-list data structure. 7977 * 7978 * This routine processes an unsolicited RSCN (Registration State Change 7979 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked 7980 * to invoke fc_host_post_event() routine to the FC transport layer. If the 7981 * discover state machine is about to begin discovery, it just accepts the 7982 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only 7983 * contains N_Port IDs for other vports on this HBA, it just accepts the 7984 * RSCN and ignore processing it. If the state machine is in the recovery 7985 * state, the fc_rscn_id_list of this @vport is walked and the 7986 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for 7987 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn() 7988 * routine is invoked to handle the RSCN event. 7989 * 7990 * Return code 7991 * 0 - Just sent the acc response 7992 * 1 - Sent the acc response and waited for name server completion 7993 **/ 7994 static int 7995 lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 7996 struct lpfc_nodelist *ndlp) 7997 { 7998 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7999 struct lpfc_hba *phba = vport->phba; 8000 struct lpfc_dmabuf *pcmd; 8001 uint32_t *lp, *datap; 8002 uint32_t payload_len, length, nportid, *cmd; 8003 int rscn_cnt; 8004 int rscn_id = 0, hba_id = 0; 8005 int i, tmo; 8006 8007 pcmd = cmdiocb->cmd_dmabuf; 8008 lp = (uint32_t *) pcmd->virt; 8009 8010 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); 8011 payload_len -= sizeof(uint32_t); /* take off word 0 */ 8012 /* RSCN received */ 8013 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8014 "0214 RSCN received Data: x%x x%x x%x x%x\n", 8015 vport->fc_flag, payload_len, *lp, 8016 vport->fc_rscn_id_cnt); 8017 8018 /* Send an RSCN event to the management application */ 8019 lpfc_send_rscn_event(vport, cmdiocb); 8020 8021 for (i = 0; i < payload_len/sizeof(uint32_t); i++) 8022 fc_host_post_event(shost, fc_get_event_number(), 8023 FCH_EVT_RSCN, lp[i]); 8024 8025 /* Check if RSCN is coming from a direct-connected remote NPort */ 8026 if (vport->fc_flag & FC_PT2PT) { 8027 /* If so, just ACC it, no other action needed for now */ 8028 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 8029 "2024 pt2pt RSCN %08x Data: x%x x%x\n", 8030 *lp, vport->fc_flag, payload_len); 8031 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8032 8033 /* Check to see if we need to NVME rescan this target 8034 * remoteport. 8035 */ 8036 if (ndlp->nlp_fc4_type & NLP_FC4_NVME && 8037 ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY)) 8038 lpfc_nvme_rescan_port(vport, ndlp); 8039 return 0; 8040 } 8041 8042 /* If we are about to begin discovery, just ACC the RSCN. 8043 * Discovery processing will satisfy it. 8044 */ 8045 if (vport->port_state <= LPFC_NS_QRY) { 8046 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8047 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x", 8048 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); 8049 8050 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8051 return 0; 8052 } 8053 8054 /* If this RSCN just contains NPortIDs for other vports on this HBA, 8055 * just ACC and ignore it. 8056 */ 8057 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 8058 !(vport->cfg_peer_port_login)) { 8059 i = payload_len; 8060 datap = lp; 8061 while (i > 0) { 8062 nportid = *datap++; 8063 nportid = ((be32_to_cpu(nportid)) & Mask_DID); 8064 i -= sizeof(uint32_t); 8065 rscn_id++; 8066 if (lpfc_find_vport_by_did(phba, nportid)) 8067 hba_id++; 8068 } 8069 if (rscn_id == hba_id) { 8070 /* ALL NPortIDs in RSCN are on HBA */ 8071 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8072 "0219 Ignore RSCN " 8073 "Data: x%x x%x x%x x%x\n", 8074 vport->fc_flag, payload_len, 8075 *lp, vport->fc_rscn_id_cnt); 8076 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8077 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x", 8078 ndlp->nlp_DID, vport->port_state, 8079 ndlp->nlp_flag); 8080 8081 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, 8082 ndlp, NULL); 8083 /* Restart disctmo if its already running */ 8084 if (vport->fc_flag & FC_DISC_TMO) { 8085 tmo = ((phba->fc_ratov * 3) + 3); 8086 mod_timer(&vport->fc_disctmo, 8087 jiffies + 8088 msecs_to_jiffies(1000 * tmo)); 8089 } 8090 return 0; 8091 } 8092 } 8093 8094 spin_lock_irq(shost->host_lock); 8095 if (vport->fc_rscn_flush) { 8096 /* Another thread is walking fc_rscn_id_list on this vport */ 8097 vport->fc_flag |= FC_RSCN_DISCOVERY; 8098 spin_unlock_irq(shost->host_lock); 8099 /* Send back ACC */ 8100 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8101 return 0; 8102 } 8103 /* Indicate we are walking fc_rscn_id_list on this vport */ 8104 vport->fc_rscn_flush = 1; 8105 spin_unlock_irq(shost->host_lock); 8106 /* Get the array count after successfully have the token */ 8107 rscn_cnt = vport->fc_rscn_id_cnt; 8108 /* If we are already processing an RSCN, save the received 8109 * RSCN payload buffer, cmdiocb->cmd_dmabuf to process later. 8110 */ 8111 if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) { 8112 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8113 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x", 8114 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); 8115 8116 spin_lock_irq(shost->host_lock); 8117 vport->fc_flag |= FC_RSCN_DEFERRED; 8118 8119 /* Restart disctmo if its already running */ 8120 if (vport->fc_flag & FC_DISC_TMO) { 8121 tmo = ((phba->fc_ratov * 3) + 3); 8122 mod_timer(&vport->fc_disctmo, 8123 jiffies + msecs_to_jiffies(1000 * tmo)); 8124 } 8125 if ((rscn_cnt < FC_MAX_HOLD_RSCN) && 8126 !(vport->fc_flag & FC_RSCN_DISCOVERY)) { 8127 vport->fc_flag |= FC_RSCN_MODE; 8128 spin_unlock_irq(shost->host_lock); 8129 if (rscn_cnt) { 8130 cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; 8131 length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); 8132 } 8133 if ((rscn_cnt) && 8134 (payload_len + length <= LPFC_BPL_SIZE)) { 8135 *cmd &= ELS_CMD_MASK; 8136 *cmd |= cpu_to_be32(payload_len + length); 8137 memcpy(((uint8_t *)cmd) + length, lp, 8138 payload_len); 8139 } else { 8140 vport->fc_rscn_id_list[rscn_cnt] = pcmd; 8141 vport->fc_rscn_id_cnt++; 8142 /* If we zero, cmdiocb->cmd_dmabuf, the calling 8143 * routine will not try to free it. 8144 */ 8145 cmdiocb->cmd_dmabuf = NULL; 8146 } 8147 /* Deferred RSCN */ 8148 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8149 "0235 Deferred RSCN " 8150 "Data: x%x x%x x%x\n", 8151 vport->fc_rscn_id_cnt, vport->fc_flag, 8152 vport->port_state); 8153 } else { 8154 vport->fc_flag |= FC_RSCN_DISCOVERY; 8155 spin_unlock_irq(shost->host_lock); 8156 /* ReDiscovery RSCN */ 8157 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8158 "0234 ReDiscovery RSCN " 8159 "Data: x%x x%x x%x\n", 8160 vport->fc_rscn_id_cnt, vport->fc_flag, 8161 vport->port_state); 8162 } 8163 /* Indicate we are done walking fc_rscn_id_list on this vport */ 8164 vport->fc_rscn_flush = 0; 8165 /* Send back ACC */ 8166 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8167 /* send RECOVERY event for ALL nodes that match RSCN payload */ 8168 lpfc_rscn_recovery_check(vport); 8169 return 0; 8170 } 8171 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8172 "RCV RSCN: did:x%x/ste:x%x flg:x%x", 8173 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); 8174 8175 spin_lock_irq(shost->host_lock); 8176 vport->fc_flag |= FC_RSCN_MODE; 8177 spin_unlock_irq(shost->host_lock); 8178 vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; 8179 /* Indicate we are done walking fc_rscn_id_list on this vport */ 8180 vport->fc_rscn_flush = 0; 8181 /* 8182 * If we zero, cmdiocb->cmd_dmabuf, the calling routine will 8183 * not try to free it. 8184 */ 8185 cmdiocb->cmd_dmabuf = NULL; 8186 lpfc_set_disctmo(vport); 8187 /* Send back ACC */ 8188 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8189 /* send RECOVERY event for ALL nodes that match RSCN payload */ 8190 lpfc_rscn_recovery_check(vport); 8191 return lpfc_els_handle_rscn(vport); 8192 } 8193 8194 /** 8195 * lpfc_els_handle_rscn - Handle rscn for a vport 8196 * @vport: pointer to a host virtual N_Port data structure. 8197 * 8198 * This routine handles the Registration State Configuration Notification 8199 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall 8200 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise, 8201 * if the ndlp to NameServer exists, a Common Transport (CT) command to the 8202 * NameServer shall be issued. If CT command to the NameServer fails to be 8203 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any 8204 * RSCN activities with the @vport. 8205 * 8206 * Return code 8207 * 0 - Cleaned up rscn on the @vport 8208 * 1 - Wait for plogi to name server before proceed 8209 **/ 8210 int 8211 lpfc_els_handle_rscn(struct lpfc_vport *vport) 8212 { 8213 struct lpfc_nodelist *ndlp; 8214 struct lpfc_hba *phba = vport->phba; 8215 8216 /* Ignore RSCN if the port is being torn down. */ 8217 if (vport->load_flag & FC_UNLOADING) { 8218 lpfc_els_flush_rscn(vport); 8219 return 0; 8220 } 8221 8222 /* Start timer for RSCN processing */ 8223 lpfc_set_disctmo(vport); 8224 8225 /* RSCN processed */ 8226 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8227 "0215 RSCN processed Data: x%x x%x x%x x%x x%x x%x\n", 8228 vport->fc_flag, 0, vport->fc_rscn_id_cnt, 8229 vport->port_state, vport->num_disc_nodes, 8230 vport->gidft_inp); 8231 8232 /* To process RSCN, first compare RSCN data with NameServer */ 8233 vport->fc_ns_retry = 0; 8234 vport->num_disc_nodes = 0; 8235 8236 ndlp = lpfc_findnode_did(vport, NameServer_DID); 8237 if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { 8238 /* Good ndlp, issue CT Request to NameServer. Need to 8239 * know how many gidfts were issued. If none, then just 8240 * flush the RSCN. Otherwise, the outstanding requests 8241 * need to complete. 8242 */ 8243 if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_FT) { 8244 if (lpfc_issue_gidft(vport) > 0) 8245 return 1; 8246 } else if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_PT) { 8247 if (lpfc_issue_gidpt(vport) > 0) 8248 return 1; 8249 } else { 8250 return 1; 8251 } 8252 } else { 8253 /* Nameserver login in question. Revalidate. */ 8254 if (ndlp) { 8255 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; 8256 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 8257 } else { 8258 ndlp = lpfc_nlp_init(vport, NameServer_DID); 8259 if (!ndlp) { 8260 lpfc_els_flush_rscn(vport); 8261 return 0; 8262 } 8263 ndlp->nlp_prev_state = ndlp->nlp_state; 8264 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 8265 } 8266 ndlp->nlp_type |= NLP_FABRIC; 8267 lpfc_issue_els_plogi(vport, NameServer_DID, 0); 8268 /* Wait for NameServer login cmpl before we can 8269 * continue 8270 */ 8271 return 1; 8272 } 8273 8274 lpfc_els_flush_rscn(vport); 8275 return 0; 8276 } 8277 8278 /** 8279 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb 8280 * @vport: pointer to a host virtual N_Port data structure. 8281 * @cmdiocb: pointer to lpfc command iocb data structure. 8282 * @ndlp: pointer to a node-list data structure. 8283 * 8284 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS 8285 * unsolicited event. An unsolicited FLOGI can be received in a point-to- 8286 * point topology. As an unsolicited FLOGI should not be received in a loop 8287 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The 8288 * lpfc_check_sparm() routine is invoked to check the parameters in the 8289 * unsolicited FLOGI. If parameters validation failed, the routine 8290 * lpfc_els_rsp_reject() shall be called with reject reason code set to 8291 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the 8292 * FLOGI shall be compared with the Port WWN of the @vport to determine who 8293 * will initiate PLOGI. The higher lexicographical value party shall has 8294 * higher priority (as the winning port) and will initiate PLOGI and 8295 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result 8296 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI 8297 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI. 8298 * 8299 * Return code 8300 * 0 - Successfully processed the unsolicited flogi 8301 * 1 - Failed to process the unsolicited flogi 8302 **/ 8303 static int 8304 lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8305 struct lpfc_nodelist *ndlp) 8306 { 8307 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8308 struct lpfc_hba *phba = vport->phba; 8309 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 8310 uint32_t *lp = (uint32_t *) pcmd->virt; 8311 union lpfc_wqe128 *wqe = &cmdiocb->wqe; 8312 struct serv_parm *sp; 8313 LPFC_MBOXQ_t *mbox; 8314 uint32_t cmd, did; 8315 int rc; 8316 uint32_t fc_flag = 0; 8317 uint32_t port_state = 0; 8318 8319 /* Clear external loopback plug detected flag */ 8320 phba->link_flag &= ~LS_EXTERNAL_LOOPBACK; 8321 8322 cmd = *lp++; 8323 sp = (struct serv_parm *) lp; 8324 8325 /* FLOGI received */ 8326 8327 lpfc_set_disctmo(vport); 8328 8329 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 8330 /* We should never receive a FLOGI in loop mode, ignore it */ 8331 did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest); 8332 8333 /* An FLOGI ELS command <elsCmd> was received from DID <did> in 8334 Loop Mode */ 8335 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 8336 "0113 An FLOGI ELS command x%x was " 8337 "received from DID x%x in Loop Mode\n", 8338 cmd, did); 8339 return 1; 8340 } 8341 8342 (void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1); 8343 8344 /* 8345 * If our portname is greater than the remote portname, 8346 * then we initiate Nport login. 8347 */ 8348 8349 rc = memcmp(&vport->fc_portname, &sp->portName, 8350 sizeof(struct lpfc_name)); 8351 8352 if (!rc) { 8353 if (phba->sli_rev < LPFC_SLI_REV4) { 8354 mbox = mempool_alloc(phba->mbox_mem_pool, 8355 GFP_KERNEL); 8356 if (!mbox) 8357 return 1; 8358 lpfc_linkdown(phba); 8359 lpfc_init_link(phba, mbox, 8360 phba->cfg_topology, 8361 phba->cfg_link_speed); 8362 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 8363 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 8364 mbox->vport = vport; 8365 rc = lpfc_sli_issue_mbox(phba, mbox, 8366 MBX_NOWAIT); 8367 lpfc_set_loopback_flag(phba); 8368 if (rc == MBX_NOT_FINISHED) 8369 mempool_free(mbox, phba->mbox_mem_pool); 8370 return 1; 8371 } 8372 8373 /* External loopback plug insertion detected */ 8374 phba->link_flag |= LS_EXTERNAL_LOOPBACK; 8375 8376 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_LIBDFC, 8377 "1119 External Loopback plug detected\n"); 8378 8379 /* abort the flogi coming back to ourselves 8380 * due to external loopback on the port. 8381 */ 8382 lpfc_els_abort_flogi(phba); 8383 return 0; 8384 8385 } else if (rc > 0) { /* greater than */ 8386 spin_lock_irq(shost->host_lock); 8387 vport->fc_flag |= FC_PT2PT_PLOGI; 8388 spin_unlock_irq(shost->host_lock); 8389 8390 /* If we have the high WWPN we can assign our own 8391 * myDID; otherwise, we have to WAIT for a PLOGI 8392 * from the remote NPort to find out what it 8393 * will be. 8394 */ 8395 vport->fc_myDID = PT2PT_LocalID; 8396 } else { 8397 vport->fc_myDID = PT2PT_RemoteID; 8398 } 8399 8400 /* 8401 * The vport state should go to LPFC_FLOGI only 8402 * AFTER we issue a FLOGI, not receive one. 8403 */ 8404 spin_lock_irq(shost->host_lock); 8405 fc_flag = vport->fc_flag; 8406 port_state = vport->port_state; 8407 vport->fc_flag |= FC_PT2PT; 8408 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 8409 8410 /* Acking an unsol FLOGI. Count 1 for link bounce 8411 * work-around. 8412 */ 8413 vport->rcv_flogi_cnt++; 8414 spin_unlock_irq(shost->host_lock); 8415 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 8416 "3311 Rcv Flogi PS x%x new PS x%x " 8417 "fc_flag x%x new fc_flag x%x\n", 8418 port_state, vport->port_state, 8419 fc_flag, vport->fc_flag); 8420 8421 /* 8422 * We temporarily set fc_myDID to make it look like we are 8423 * a Fabric. This is done just so we end up with the right 8424 * did / sid on the FLOGI ACC rsp. 8425 */ 8426 did = vport->fc_myDID; 8427 vport->fc_myDID = Fabric_DID; 8428 8429 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 8430 8431 /* Defer ACC response until AFTER we issue a FLOGI */ 8432 if (!(phba->hba_flag & HBA_FLOGI_ISSUED)) { 8433 phba->defer_flogi_acc_rx_id = bf_get(wqe_ctxt_tag, 8434 &wqe->xmit_els_rsp.wqe_com); 8435 phba->defer_flogi_acc_ox_id = bf_get(wqe_rcvoxid, 8436 &wqe->xmit_els_rsp.wqe_com); 8437 8438 vport->fc_myDID = did; 8439 8440 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 8441 "3344 Deferring FLOGI ACC: rx_id: x%x," 8442 " ox_id: x%x, hba_flag x%x\n", 8443 phba->defer_flogi_acc_rx_id, 8444 phba->defer_flogi_acc_ox_id, phba->hba_flag); 8445 8446 phba->defer_flogi_acc_flag = true; 8447 8448 return 0; 8449 } 8450 8451 /* Send back ACC */ 8452 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL); 8453 8454 /* Now lets put fc_myDID back to what its supposed to be */ 8455 vport->fc_myDID = did; 8456 8457 return 0; 8458 } 8459 8460 /** 8461 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb 8462 * @vport: pointer to a host virtual N_Port data structure. 8463 * @cmdiocb: pointer to lpfc command iocb data structure. 8464 * @ndlp: pointer to a node-list data structure. 8465 * 8466 * This routine processes Request Node Identification Data (RNID) IOCB 8467 * received as an ELS unsolicited event. Only when the RNID specified format 8468 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data) 8469 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to 8470 * Accept (ACC) the RNID ELS command. All the other RNID formats are 8471 * rejected by invoking the lpfc_els_rsp_reject() routine. 8472 * 8473 * Return code 8474 * 0 - Successfully processed rnid iocb (currently always return 0) 8475 **/ 8476 static int 8477 lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8478 struct lpfc_nodelist *ndlp) 8479 { 8480 struct lpfc_dmabuf *pcmd; 8481 uint32_t *lp; 8482 RNID *rn; 8483 struct ls_rjt stat; 8484 8485 pcmd = cmdiocb->cmd_dmabuf; 8486 lp = (uint32_t *) pcmd->virt; 8487 8488 lp++; 8489 rn = (RNID *) lp; 8490 8491 /* RNID received */ 8492 8493 switch (rn->Format) { 8494 case 0: 8495 case RNID_TOPOLOGY_DISC: 8496 /* Send back ACC */ 8497 lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); 8498 break; 8499 default: 8500 /* Reject this request because format not supported */ 8501 stat.un.b.lsRjtRsvd0 = 0; 8502 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8503 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8504 stat.un.b.vendorUnique = 0; 8505 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 8506 NULL); 8507 } 8508 return 0; 8509 } 8510 8511 /** 8512 * lpfc_els_rcv_echo - Process an unsolicited echo iocb 8513 * @vport: pointer to a host virtual N_Port data structure. 8514 * @cmdiocb: pointer to lpfc command iocb data structure. 8515 * @ndlp: pointer to a node-list data structure. 8516 * 8517 * Return code 8518 * 0 - Successfully processed echo iocb (currently always return 0) 8519 **/ 8520 static int 8521 lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8522 struct lpfc_nodelist *ndlp) 8523 { 8524 uint8_t *pcmd; 8525 8526 pcmd = (uint8_t *)cmdiocb->cmd_dmabuf->virt; 8527 8528 /* skip over first word of echo command to find echo data */ 8529 pcmd += sizeof(uint32_t); 8530 8531 lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp); 8532 return 0; 8533 } 8534 8535 /** 8536 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb 8537 * @vport: pointer to a host virtual N_Port data structure. 8538 * @cmdiocb: pointer to lpfc command iocb data structure. 8539 * @ndlp: pointer to a node-list data structure. 8540 * 8541 * This routine processes a Link Incident Report Registration(LIRR) IOCB 8542 * received as an ELS unsolicited event. Currently, this function just invokes 8543 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally. 8544 * 8545 * Return code 8546 * 0 - Successfully processed lirr iocb (currently always return 0) 8547 **/ 8548 static int 8549 lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8550 struct lpfc_nodelist *ndlp) 8551 { 8552 struct ls_rjt stat; 8553 8554 /* For now, unconditionally reject this command */ 8555 stat.un.b.lsRjtRsvd0 = 0; 8556 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8557 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8558 stat.un.b.vendorUnique = 0; 8559 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 8560 return 0; 8561 } 8562 8563 /** 8564 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb 8565 * @vport: pointer to a host virtual N_Port data structure. 8566 * @cmdiocb: pointer to lpfc command iocb data structure. 8567 * @ndlp: pointer to a node-list data structure. 8568 * 8569 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB 8570 * received as an ELS unsolicited event. A request to RRQ shall only 8571 * be accepted if the Originator Nx_Port N_Port_ID or the Responder 8572 * Nx_Port N_Port_ID of the target Exchange is the same as the 8573 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is 8574 * not accepted, an LS_RJT with reason code "Unable to perform 8575 * command request" and reason code explanation "Invalid Originator 8576 * S_ID" shall be returned. For now, we just unconditionally accept 8577 * RRQ from the target. 8578 **/ 8579 static void 8580 lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8581 struct lpfc_nodelist *ndlp) 8582 { 8583 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8584 if (vport->phba->sli_rev == LPFC_SLI_REV4) 8585 lpfc_els_clear_rrq(vport, cmdiocb, ndlp); 8586 } 8587 8588 /** 8589 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd 8590 * @phba: pointer to lpfc hba data structure. 8591 * @pmb: pointer to the driver internal queue element for mailbox command. 8592 * 8593 * This routine is the completion callback function for the MBX_READ_LNK_STAT 8594 * mailbox command. This callback function is to actually send the Accept 8595 * (ACC) response to a Read Link Status (RLS) unsolicited IOCB event. It 8596 * collects the link statistics from the completion of the MBX_READ_LNK_STAT 8597 * mailbox command, constructs the RLS response with the link statistics 8598 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC 8599 * response to the RLS. 8600 * 8601 * Note that the ndlp reference count will be incremented by 1 for holding the 8602 * ndlp and the reference to ndlp will be stored into the ndlp field of 8603 * the IOCB for the completion callback function to the RLS Accept Response 8604 * ELS IOCB command. 8605 * 8606 **/ 8607 static void 8608 lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 8609 { 8610 int rc = 0; 8611 MAILBOX_t *mb; 8612 IOCB_t *icmd; 8613 union lpfc_wqe128 *wqe; 8614 struct RLS_RSP *rls_rsp; 8615 uint8_t *pcmd; 8616 struct lpfc_iocbq *elsiocb; 8617 struct lpfc_nodelist *ndlp; 8618 uint16_t oxid; 8619 uint16_t rxid; 8620 uint32_t cmdsize; 8621 u32 ulp_context; 8622 8623 mb = &pmb->u.mb; 8624 8625 ndlp = pmb->ctx_ndlp; 8626 rxid = (uint16_t)((unsigned long)(pmb->ctx_buf) & 0xffff); 8627 oxid = (uint16_t)(((unsigned long)(pmb->ctx_buf) >> 16) & 0xffff); 8628 pmb->ctx_buf = NULL; 8629 pmb->ctx_ndlp = NULL; 8630 8631 if (mb->mbxStatus) { 8632 mempool_free(pmb, phba->mbox_mem_pool); 8633 return; 8634 } 8635 8636 cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t); 8637 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 8638 lpfc_max_els_tries, ndlp, 8639 ndlp->nlp_DID, ELS_CMD_ACC); 8640 8641 /* Decrement the ndlp reference count from previous mbox command */ 8642 lpfc_nlp_put(ndlp); 8643 8644 if (!elsiocb) { 8645 mempool_free(pmb, phba->mbox_mem_pool); 8646 return; 8647 } 8648 8649 ulp_context = get_job_ulpcontext(phba, elsiocb); 8650 if (phba->sli_rev == LPFC_SLI_REV4) { 8651 wqe = &elsiocb->wqe; 8652 /* Xri / rx_id */ 8653 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, rxid); 8654 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, oxid); 8655 } else { 8656 icmd = &elsiocb->iocb; 8657 icmd->ulpContext = rxid; 8658 icmd->unsli3.rcvsli3.ox_id = oxid; 8659 } 8660 8661 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 8662 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 8663 pcmd += sizeof(uint32_t); /* Skip past command */ 8664 rls_rsp = (struct RLS_RSP *)pcmd; 8665 8666 rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); 8667 rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); 8668 rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); 8669 rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); 8670 rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); 8671 rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); 8672 mempool_free(pmb, phba->mbox_mem_pool); 8673 /* Xmit ELS RLS ACC response tag <ulpIoTag> */ 8674 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, 8675 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, " 8676 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", 8677 elsiocb->iotag, ulp_context, 8678 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 8679 ndlp->nlp_rpi); 8680 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 8681 phba->fc_stat.elsXmitACC++; 8682 elsiocb->ndlp = lpfc_nlp_get(ndlp); 8683 if (!elsiocb->ndlp) { 8684 lpfc_els_free_iocb(phba, elsiocb); 8685 return; 8686 } 8687 8688 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 8689 if (rc == IOCB_ERROR) { 8690 lpfc_els_free_iocb(phba, elsiocb); 8691 lpfc_nlp_put(ndlp); 8692 } 8693 return; 8694 } 8695 8696 /** 8697 * lpfc_els_rcv_rls - Process an unsolicited rls iocb 8698 * @vport: pointer to a host virtual N_Port data structure. 8699 * @cmdiocb: pointer to lpfc command iocb data structure. 8700 * @ndlp: pointer to a node-list data structure. 8701 * 8702 * This routine processes Read Link Status (RLS) IOCB received as an 8703 * ELS unsolicited event. It first checks the remote port state. If the 8704 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE 8705 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject 8706 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command 8707 * for reading the HBA link statistics. It is for the callback function, 8708 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command 8709 * to actually sending out RPL Accept (ACC) response. 8710 * 8711 * Return codes 8712 * 0 - Successfully processed rls iocb (currently always return 0) 8713 **/ 8714 static int 8715 lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8716 struct lpfc_nodelist *ndlp) 8717 { 8718 struct lpfc_hba *phba = vport->phba; 8719 LPFC_MBOXQ_t *mbox; 8720 struct ls_rjt stat; 8721 u32 ctx = get_job_ulpcontext(phba, cmdiocb); 8722 u32 ox_id = get_job_rcvoxid(phba, cmdiocb); 8723 8724 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 8725 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) 8726 /* reject the unsolicited RLS request and done with it */ 8727 goto reject_out; 8728 8729 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); 8730 if (mbox) { 8731 lpfc_read_lnk_stat(phba, mbox); 8732 mbox->ctx_buf = (void *)((unsigned long) 8733 (ox_id << 16 | ctx)); 8734 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 8735 if (!mbox->ctx_ndlp) 8736 goto node_err; 8737 mbox->vport = vport; 8738 mbox->mbox_cmpl = lpfc_els_rsp_rls_acc; 8739 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 8740 != MBX_NOT_FINISHED) 8741 /* Mbox completion will send ELS Response */ 8742 return 0; 8743 /* Decrement reference count used for the failed mbox 8744 * command. 8745 */ 8746 lpfc_nlp_put(ndlp); 8747 node_err: 8748 mempool_free(mbox, phba->mbox_mem_pool); 8749 } 8750 reject_out: 8751 /* issue rejection response */ 8752 stat.un.b.lsRjtRsvd0 = 0; 8753 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8754 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8755 stat.un.b.vendorUnique = 0; 8756 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 8757 return 0; 8758 } 8759 8760 /** 8761 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb 8762 * @vport: pointer to a host virtual N_Port data structure. 8763 * @cmdiocb: pointer to lpfc command iocb data structure. 8764 * @ndlp: pointer to a node-list data structure. 8765 * 8766 * This routine processes Read Timout Value (RTV) IOCB received as an 8767 * ELS unsolicited event. It first checks the remote port state. If the 8768 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE 8769 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject 8770 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout 8771 * Value (RTV) unsolicited IOCB event. 8772 * 8773 * Note that the ndlp reference count will be incremented by 1 for holding the 8774 * ndlp and the reference to ndlp will be stored into the ndlp field of 8775 * the IOCB for the completion callback function to the RTV Accept Response 8776 * ELS IOCB command. 8777 * 8778 * Return codes 8779 * 0 - Successfully processed rtv iocb (currently always return 0) 8780 **/ 8781 static int 8782 lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8783 struct lpfc_nodelist *ndlp) 8784 { 8785 int rc = 0; 8786 IOCB_t *icmd; 8787 union lpfc_wqe128 *wqe; 8788 struct lpfc_hba *phba = vport->phba; 8789 struct ls_rjt stat; 8790 struct RTV_RSP *rtv_rsp; 8791 uint8_t *pcmd; 8792 struct lpfc_iocbq *elsiocb; 8793 uint32_t cmdsize; 8794 u32 ulp_context; 8795 8796 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 8797 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) 8798 /* reject the unsolicited RTV request and done with it */ 8799 goto reject_out; 8800 8801 cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t); 8802 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 8803 lpfc_max_els_tries, ndlp, 8804 ndlp->nlp_DID, ELS_CMD_ACC); 8805 8806 if (!elsiocb) 8807 return 1; 8808 8809 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 8810 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 8811 pcmd += sizeof(uint32_t); /* Skip past command */ 8812 8813 ulp_context = get_job_ulpcontext(phba, elsiocb); 8814 /* use the command's xri in the response */ 8815 if (phba->sli_rev == LPFC_SLI_REV4) { 8816 wqe = &elsiocb->wqe; 8817 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 8818 get_job_ulpcontext(phba, cmdiocb)); 8819 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 8820 get_job_rcvoxid(phba, cmdiocb)); 8821 } else { 8822 icmd = &elsiocb->iocb; 8823 icmd->ulpContext = get_job_ulpcontext(phba, cmdiocb); 8824 icmd->unsli3.rcvsli3.ox_id = get_job_rcvoxid(phba, cmdiocb); 8825 } 8826 8827 rtv_rsp = (struct RTV_RSP *)pcmd; 8828 8829 /* populate RTV payload */ 8830 rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */ 8831 rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov); 8832 bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0); 8833 bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */ 8834 rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov); 8835 8836 /* Xmit ELS RLS ACC response tag <ulpIoTag> */ 8837 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, 8838 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, " 8839 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, " 8840 "Data: x%x x%x x%x\n", 8841 elsiocb->iotag, ulp_context, 8842 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 8843 ndlp->nlp_rpi, 8844 rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov); 8845 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 8846 phba->fc_stat.elsXmitACC++; 8847 elsiocb->ndlp = lpfc_nlp_get(ndlp); 8848 if (!elsiocb->ndlp) { 8849 lpfc_els_free_iocb(phba, elsiocb); 8850 return 0; 8851 } 8852 8853 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 8854 if (rc == IOCB_ERROR) { 8855 lpfc_els_free_iocb(phba, elsiocb); 8856 lpfc_nlp_put(ndlp); 8857 } 8858 return 0; 8859 8860 reject_out: 8861 /* issue rejection response */ 8862 stat.un.b.lsRjtRsvd0 = 0; 8863 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8864 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8865 stat.un.b.vendorUnique = 0; 8866 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 8867 return 0; 8868 } 8869 8870 /* lpfc_issue_els_rrq - Process an unsolicited rrq iocb 8871 * @vport: pointer to a host virtual N_Port data structure. 8872 * @ndlp: pointer to a node-list data structure. 8873 * @did: DID of the target. 8874 * @rrq: Pointer to the rrq struct. 8875 * 8876 * Build a ELS RRQ command and send it to the target. If the issue_iocb is 8877 * successful, the completion handler will clear the RRQ. 8878 * 8879 * Return codes 8880 * 0 - Successfully sent rrq els iocb. 8881 * 1 - Failed to send rrq els iocb. 8882 **/ 8883 static int 8884 lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 8885 uint32_t did, struct lpfc_node_rrq *rrq) 8886 { 8887 struct lpfc_hba *phba = vport->phba; 8888 struct RRQ *els_rrq; 8889 struct lpfc_iocbq *elsiocb; 8890 uint8_t *pcmd; 8891 uint16_t cmdsize; 8892 int ret; 8893 8894 if (!ndlp) 8895 return 1; 8896 8897 /* If ndlp is not NULL, we will bump the reference count on it */ 8898 cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ)); 8899 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did, 8900 ELS_CMD_RRQ); 8901 if (!elsiocb) 8902 return 1; 8903 8904 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 8905 8906 /* For RRQ request, remainder of payload is Exchange IDs */ 8907 *((uint32_t *) (pcmd)) = ELS_CMD_RRQ; 8908 pcmd += sizeof(uint32_t); 8909 els_rrq = (struct RRQ *) pcmd; 8910 8911 bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]); 8912 bf_set(rrq_rxid, els_rrq, rrq->rxid); 8913 bf_set(rrq_did, els_rrq, vport->fc_myDID); 8914 els_rrq->rrq = cpu_to_be32(els_rrq->rrq); 8915 els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg); 8916 8917 8918 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 8919 "Issue RRQ: did:x%x", 8920 did, rrq->xritag, rrq->rxid); 8921 elsiocb->context_un.rrq = rrq; 8922 elsiocb->cmd_cmpl = lpfc_cmpl_els_rrq; 8923 8924 elsiocb->ndlp = lpfc_nlp_get(ndlp); 8925 if (!elsiocb->ndlp) 8926 goto io_err; 8927 8928 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 8929 if (ret == IOCB_ERROR) { 8930 lpfc_nlp_put(ndlp); 8931 goto io_err; 8932 } 8933 return 0; 8934 8935 io_err: 8936 lpfc_els_free_iocb(phba, elsiocb); 8937 return 1; 8938 } 8939 8940 /** 8941 * lpfc_send_rrq - Sends ELS RRQ if needed. 8942 * @phba: pointer to lpfc hba data structure. 8943 * @rrq: pointer to the active rrq. 8944 * 8945 * This routine will call the lpfc_issue_els_rrq if the rrq is 8946 * still active for the xri. If this function returns a failure then 8947 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq. 8948 * 8949 * Returns 0 Success. 8950 * 1 Failure. 8951 **/ 8952 int 8953 lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq) 8954 { 8955 struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport, 8956 rrq->nlp_DID); 8957 if (!ndlp) 8958 return 1; 8959 8960 if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag)) 8961 return lpfc_issue_els_rrq(rrq->vport, ndlp, 8962 rrq->nlp_DID, rrq); 8963 else 8964 return 1; 8965 } 8966 8967 /** 8968 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command 8969 * @vport: pointer to a host virtual N_Port data structure. 8970 * @cmdsize: size of the ELS command. 8971 * @oldiocb: pointer to the original lpfc command iocb data structure. 8972 * @ndlp: pointer to a node-list data structure. 8973 * 8974 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command. 8975 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL. 8976 * 8977 * Note that the ndlp reference count will be incremented by 1 for holding the 8978 * ndlp and the reference to ndlp will be stored into the ndlp field of 8979 * the IOCB for the completion callback function to the RPL Accept Response 8980 * ELS command. 8981 * 8982 * Return code 8983 * 0 - Successfully issued ACC RPL ELS command 8984 * 1 - Failed to issue ACC RPL ELS command 8985 **/ 8986 static int 8987 lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, 8988 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) 8989 { 8990 int rc = 0; 8991 struct lpfc_hba *phba = vport->phba; 8992 IOCB_t *icmd; 8993 union lpfc_wqe128 *wqe; 8994 RPL_RSP rpl_rsp; 8995 struct lpfc_iocbq *elsiocb; 8996 uint8_t *pcmd; 8997 u32 ulp_context; 8998 8999 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 9000 ndlp->nlp_DID, ELS_CMD_ACC); 9001 9002 if (!elsiocb) 9003 return 1; 9004 9005 ulp_context = get_job_ulpcontext(phba, elsiocb); 9006 if (phba->sli_rev == LPFC_SLI_REV4) { 9007 wqe = &elsiocb->wqe; 9008 /* Xri / rx_id */ 9009 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 9010 get_job_ulpcontext(phba, oldiocb)); 9011 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 9012 get_job_rcvoxid(phba, oldiocb)); 9013 } else { 9014 icmd = &elsiocb->iocb; 9015 icmd->ulpContext = get_job_ulpcontext(phba, oldiocb); 9016 icmd->unsli3.rcvsli3.ox_id = get_job_rcvoxid(phba, oldiocb); 9017 } 9018 9019 pcmd = elsiocb->cmd_dmabuf->virt; 9020 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 9021 pcmd += sizeof(uint16_t); 9022 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); 9023 pcmd += sizeof(uint16_t); 9024 9025 /* Setup the RPL ACC payload */ 9026 rpl_rsp.listLen = be32_to_cpu(1); 9027 rpl_rsp.index = 0; 9028 rpl_rsp.port_num_blk.portNum = 0; 9029 rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); 9030 memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, 9031 sizeof(struct lpfc_name)); 9032 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); 9033 /* Xmit ELS RPL ACC response tag <ulpIoTag> */ 9034 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9035 "0120 Xmit ELS RPL ACC response tag x%x " 9036 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " 9037 "rpi x%x\n", 9038 elsiocb->iotag, ulp_context, 9039 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 9040 ndlp->nlp_rpi); 9041 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 9042 phba->fc_stat.elsXmitACC++; 9043 elsiocb->ndlp = lpfc_nlp_get(ndlp); 9044 if (!elsiocb->ndlp) { 9045 lpfc_els_free_iocb(phba, elsiocb); 9046 return 1; 9047 } 9048 9049 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 9050 if (rc == IOCB_ERROR) { 9051 lpfc_els_free_iocb(phba, elsiocb); 9052 lpfc_nlp_put(ndlp); 9053 return 1; 9054 } 9055 9056 return 0; 9057 } 9058 9059 /** 9060 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb 9061 * @vport: pointer to a host virtual N_Port data structure. 9062 * @cmdiocb: pointer to lpfc command iocb data structure. 9063 * @ndlp: pointer to a node-list data structure. 9064 * 9065 * This routine processes Read Port List (RPL) IOCB received as an ELS 9066 * unsolicited event. It first checks the remote port state. If the remote 9067 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it 9068 * invokes the lpfc_els_rsp_reject() routine to send reject response. 9069 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine 9070 * to accept the RPL. 9071 * 9072 * Return code 9073 * 0 - Successfully processed rpl iocb (currently always return 0) 9074 **/ 9075 static int 9076 lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9077 struct lpfc_nodelist *ndlp) 9078 { 9079 struct lpfc_dmabuf *pcmd; 9080 uint32_t *lp; 9081 uint32_t maxsize; 9082 uint16_t cmdsize; 9083 RPL *rpl; 9084 struct ls_rjt stat; 9085 9086 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 9087 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { 9088 /* issue rejection response */ 9089 stat.un.b.lsRjtRsvd0 = 0; 9090 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 9091 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 9092 stat.un.b.vendorUnique = 0; 9093 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 9094 NULL); 9095 /* rejected the unsolicited RPL request and done with it */ 9096 return 0; 9097 } 9098 9099 pcmd = cmdiocb->cmd_dmabuf; 9100 lp = (uint32_t *) pcmd->virt; 9101 rpl = (RPL *) (lp + 1); 9102 maxsize = be32_to_cpu(rpl->maxsize); 9103 9104 /* We support only one port */ 9105 if ((rpl->index == 0) && 9106 ((maxsize == 0) || 9107 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { 9108 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); 9109 } else { 9110 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); 9111 } 9112 lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); 9113 9114 return 0; 9115 } 9116 9117 /** 9118 * lpfc_els_rcv_farp - Process an unsolicited farp request els command 9119 * @vport: pointer to a virtual N_Port data structure. 9120 * @cmdiocb: pointer to lpfc command iocb data structure. 9121 * @ndlp: pointer to a node-list data structure. 9122 * 9123 * This routine processes Fibre Channel Address Resolution Protocol 9124 * (FARP) Request IOCB received as an ELS unsolicited event. Currently, 9125 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such, 9126 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the 9127 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the 9128 * remote PortName is compared against the FC PortName stored in the @vport 9129 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is 9130 * compared against the FC NodeName stored in the @vport data structure. 9131 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the 9132 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is 9133 * invoked to send out FARP Response to the remote node. Before sending the 9134 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP 9135 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi() 9136 * routine is invoked to log into the remote port first. 9137 * 9138 * Return code 9139 * 0 - Either the FARP Match Mode not supported or successfully processed 9140 **/ 9141 static int 9142 lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9143 struct lpfc_nodelist *ndlp) 9144 { 9145 struct lpfc_dmabuf *pcmd; 9146 uint32_t *lp; 9147 FARP *fp; 9148 uint32_t cnt, did; 9149 9150 did = get_job_els_rsp64_did(vport->phba, cmdiocb); 9151 pcmd = cmdiocb->cmd_dmabuf; 9152 lp = (uint32_t *) pcmd->virt; 9153 9154 lp++; 9155 fp = (FARP *) lp; 9156 /* FARP-REQ received from DID <did> */ 9157 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9158 "0601 FARP-REQ received from DID x%x\n", did); 9159 /* We will only support match on WWPN or WWNN */ 9160 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { 9161 return 0; 9162 } 9163 9164 cnt = 0; 9165 /* If this FARP command is searching for my portname */ 9166 if (fp->Mflags & FARP_MATCH_PORT) { 9167 if (memcmp(&fp->RportName, &vport->fc_portname, 9168 sizeof(struct lpfc_name)) == 0) 9169 cnt = 1; 9170 } 9171 9172 /* If this FARP command is searching for my nodename */ 9173 if (fp->Mflags & FARP_MATCH_NODE) { 9174 if (memcmp(&fp->RnodeName, &vport->fc_nodename, 9175 sizeof(struct lpfc_name)) == 0) 9176 cnt = 1; 9177 } 9178 9179 if (cnt) { 9180 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || 9181 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { 9182 /* Log back into the node before sending the FARP. */ 9183 if (fp->Rflags & FARP_REQUEST_PLOGI) { 9184 ndlp->nlp_prev_state = ndlp->nlp_state; 9185 lpfc_nlp_set_state(vport, ndlp, 9186 NLP_STE_PLOGI_ISSUE); 9187 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 9188 } 9189 9190 /* Send a FARP response to that node */ 9191 if (fp->Rflags & FARP_REQUEST_FARPR) 9192 lpfc_issue_els_farpr(vport, did, 0); 9193 } 9194 } 9195 return 0; 9196 } 9197 9198 /** 9199 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb 9200 * @vport: pointer to a host virtual N_Port data structure. 9201 * @cmdiocb: pointer to lpfc command iocb data structure. 9202 * @ndlp: pointer to a node-list data structure. 9203 * 9204 * This routine processes Fibre Channel Address Resolution Protocol 9205 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply 9206 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept 9207 * the FARP response request. 9208 * 9209 * Return code 9210 * 0 - Successfully processed FARPR IOCB (currently always return 0) 9211 **/ 9212 static int 9213 lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9214 struct lpfc_nodelist *ndlp) 9215 { 9216 uint32_t did; 9217 9218 did = get_job_els_rsp64_did(vport->phba, cmdiocb); 9219 9220 /* FARP-RSP received from DID <did> */ 9221 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9222 "0600 FARP-RSP received from DID x%x\n", did); 9223 /* ACCEPT the Farp resp request */ 9224 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 9225 9226 return 0; 9227 } 9228 9229 /** 9230 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command 9231 * @vport: pointer to a host virtual N_Port data structure. 9232 * @cmdiocb: pointer to lpfc command iocb data structure. 9233 * @fan_ndlp: pointer to a node-list data structure. 9234 * 9235 * This routine processes a Fabric Address Notification (FAN) IOCB 9236 * command received as an ELS unsolicited event. The FAN ELS command will 9237 * only be processed on a physical port (i.e., the @vport represents the 9238 * physical port). The fabric NodeName and PortName from the FAN IOCB are 9239 * compared against those in the phba data structure. If any of those is 9240 * different, the lpfc_initial_flogi() routine is invoked to initialize 9241 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise, 9242 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine 9243 * is invoked to register login to the fabric. 9244 * 9245 * Return code 9246 * 0 - Successfully processed fan iocb (currently always return 0). 9247 **/ 9248 static int 9249 lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9250 struct lpfc_nodelist *fan_ndlp) 9251 { 9252 struct lpfc_hba *phba = vport->phba; 9253 uint32_t *lp; 9254 FAN *fp; 9255 9256 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); 9257 lp = (uint32_t *)cmdiocb->cmd_dmabuf->virt; 9258 fp = (FAN *) ++lp; 9259 /* FAN received; Fan does not have a reply sequence */ 9260 if ((vport == phba->pport) && 9261 (vport->port_state == LPFC_LOCAL_CFG_LINK)) { 9262 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, 9263 sizeof(struct lpfc_name))) || 9264 (memcmp(&phba->fc_fabparam.portName, &fp->FportName, 9265 sizeof(struct lpfc_name)))) { 9266 /* This port has switched fabrics. FLOGI is required */ 9267 lpfc_issue_init_vfi(vport); 9268 } else { 9269 /* FAN verified - skip FLOGI */ 9270 vport->fc_myDID = vport->fc_prevDID; 9271 if (phba->sli_rev < LPFC_SLI_REV4) 9272 lpfc_issue_fabric_reglogin(vport); 9273 else { 9274 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9275 "3138 Need register VFI: (x%x/%x)\n", 9276 vport->fc_prevDID, vport->fc_myDID); 9277 lpfc_issue_reg_vfi(vport); 9278 } 9279 } 9280 } 9281 return 0; 9282 } 9283 9284 /** 9285 * lpfc_els_rcv_edc - Process an unsolicited EDC iocb 9286 * @vport: pointer to a host virtual N_Port data structure. 9287 * @cmdiocb: pointer to lpfc command iocb data structure. 9288 * @ndlp: pointer to a node-list data structure. 9289 * 9290 * Return code 9291 * 0 - Successfully processed echo iocb (currently always return 0) 9292 **/ 9293 static int 9294 lpfc_els_rcv_edc(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9295 struct lpfc_nodelist *ndlp) 9296 { 9297 struct lpfc_hba *phba = vport->phba; 9298 struct fc_els_edc *edc_req; 9299 struct fc_tlv_desc *tlv; 9300 uint8_t *payload; 9301 uint32_t *ptr, dtag; 9302 const char *dtag_nm; 9303 int desc_cnt = 0, bytes_remain; 9304 struct fc_diag_lnkflt_desc *plnkflt; 9305 9306 payload = cmdiocb->cmd_dmabuf->virt; 9307 9308 edc_req = (struct fc_els_edc *)payload; 9309 bytes_remain = be32_to_cpu(edc_req->desc_len); 9310 9311 ptr = (uint32_t *)payload; 9312 lpfc_printf_vlog(vport, KERN_INFO, 9313 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9314 "3319 Rcv EDC payload len %d: x%x x%x x%x\n", 9315 bytes_remain, be32_to_cpu(*ptr), 9316 be32_to_cpu(*(ptr + 1)), be32_to_cpu(*(ptr + 2))); 9317 9318 /* No signal support unless there is a congestion descriptor */ 9319 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 9320 phba->cgn_sig_freq = 0; 9321 phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN; 9322 9323 if (bytes_remain <= 0) 9324 goto out; 9325 9326 tlv = edc_req->desc; 9327 9328 /* 9329 * cycle through EDC diagnostic descriptors to find the 9330 * congestion signaling capability descriptor 9331 */ 9332 while (bytes_remain) { 9333 if (bytes_remain < FC_TLV_DESC_HDR_SZ) { 9334 lpfc_printf_log(phba, KERN_WARNING, 9335 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9336 "6464 Truncated TLV hdr on " 9337 "Diagnostic descriptor[%d]\n", 9338 desc_cnt); 9339 goto out; 9340 } 9341 9342 dtag = be32_to_cpu(tlv->desc_tag); 9343 switch (dtag) { 9344 case ELS_DTAG_LNK_FAULT_CAP: 9345 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 9346 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 9347 sizeof(struct fc_diag_lnkflt_desc)) { 9348 lpfc_printf_log(phba, KERN_WARNING, 9349 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9350 "6465 Truncated Link Fault Diagnostic " 9351 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 9352 desc_cnt, bytes_remain, 9353 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 9354 sizeof(struct fc_diag_lnkflt_desc)); 9355 goto out; 9356 } 9357 plnkflt = (struct fc_diag_lnkflt_desc *)tlv; 9358 lpfc_printf_log(phba, KERN_INFO, 9359 LOG_ELS | LOG_LDS_EVENT, 9360 "4626 Link Fault Desc Data: x%08x len x%x " 9361 "da x%x dd x%x interval x%x\n", 9362 be32_to_cpu(plnkflt->desc_tag), 9363 be32_to_cpu(plnkflt->desc_len), 9364 be32_to_cpu( 9365 plnkflt->degrade_activate_threshold), 9366 be32_to_cpu( 9367 plnkflt->degrade_deactivate_threshold), 9368 be32_to_cpu(plnkflt->fec_degrade_interval)); 9369 break; 9370 case ELS_DTAG_CG_SIGNAL_CAP: 9371 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 9372 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 9373 sizeof(struct fc_diag_cg_sig_desc)) { 9374 lpfc_printf_log( 9375 phba, KERN_WARNING, LOG_CGN_MGMT, 9376 "6466 Truncated cgn signal Diagnostic " 9377 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 9378 desc_cnt, bytes_remain, 9379 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 9380 sizeof(struct fc_diag_cg_sig_desc)); 9381 goto out; 9382 } 9383 9384 phba->cgn_reg_fpin = phba->cgn_init_reg_fpin; 9385 phba->cgn_reg_signal = phba->cgn_init_reg_signal; 9386 9387 /* We start negotiation with lpfc_fabric_cgn_frequency. 9388 * When we process the EDC, we will settle on the 9389 * higher frequency. 9390 */ 9391 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency; 9392 9393 lpfc_least_capable_settings( 9394 phba, (struct fc_diag_cg_sig_desc *)tlv); 9395 break; 9396 default: 9397 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 9398 lpfc_printf_log(phba, KERN_WARNING, 9399 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9400 "6467 unknown Diagnostic " 9401 "Descriptor[%d]: tag x%x (%s)\n", 9402 desc_cnt, dtag, dtag_nm); 9403 } 9404 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv); 9405 tlv = fc_tlv_next_desc(tlv); 9406 desc_cnt++; 9407 } 9408 out: 9409 /* Need to send back an ACC */ 9410 lpfc_issue_els_edc_rsp(vport, cmdiocb, ndlp); 9411 9412 lpfc_config_cgn_signal(phba); 9413 return 0; 9414 } 9415 9416 /** 9417 * lpfc_els_timeout - Handler funciton to the els timer 9418 * @t: timer context used to obtain the vport. 9419 * 9420 * This routine is invoked by the ELS timer after timeout. It posts the ELS 9421 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port 9422 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake 9423 * up the worker thread. It is for the worker thread to invoke the routine 9424 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO. 9425 **/ 9426 void 9427 lpfc_els_timeout(struct timer_list *t) 9428 { 9429 struct lpfc_vport *vport = from_timer(vport, t, els_tmofunc); 9430 struct lpfc_hba *phba = vport->phba; 9431 uint32_t tmo_posted; 9432 unsigned long iflag; 9433 9434 spin_lock_irqsave(&vport->work_port_lock, iflag); 9435 tmo_posted = vport->work_port_events & WORKER_ELS_TMO; 9436 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING))) 9437 vport->work_port_events |= WORKER_ELS_TMO; 9438 spin_unlock_irqrestore(&vport->work_port_lock, iflag); 9439 9440 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING))) 9441 lpfc_worker_wake_up(phba); 9442 return; 9443 } 9444 9445 9446 /** 9447 * lpfc_els_timeout_handler - Process an els timeout event 9448 * @vport: pointer to a virtual N_Port data structure. 9449 * 9450 * This routine is the actual handler function that processes an ELS timeout 9451 * event. It walks the ELS ring to get and abort all the IOCBs (except the 9452 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by 9453 * invoking the lpfc_sli_issue_abort_iotag() routine. 9454 **/ 9455 void 9456 lpfc_els_timeout_handler(struct lpfc_vport *vport) 9457 { 9458 struct lpfc_hba *phba = vport->phba; 9459 struct lpfc_sli_ring *pring; 9460 struct lpfc_iocbq *tmp_iocb, *piocb; 9461 IOCB_t *cmd = NULL; 9462 struct lpfc_dmabuf *pcmd; 9463 uint32_t els_command = 0; 9464 uint32_t timeout; 9465 uint32_t remote_ID = 0xffffffff; 9466 LIST_HEAD(abort_list); 9467 u32 ulp_command = 0, ulp_context = 0, did = 0, iotag = 0; 9468 9469 9470 timeout = (uint32_t)(phba->fc_ratov << 1); 9471 9472 pring = lpfc_phba_elsring(phba); 9473 if (unlikely(!pring)) 9474 return; 9475 9476 if (phba->pport->load_flag & FC_UNLOADING) 9477 return; 9478 9479 spin_lock_irq(&phba->hbalock); 9480 if (phba->sli_rev == LPFC_SLI_REV4) 9481 spin_lock(&pring->ring_lock); 9482 9483 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { 9484 ulp_command = get_job_cmnd(phba, piocb); 9485 ulp_context = get_job_ulpcontext(phba, piocb); 9486 did = get_job_els_rsp64_did(phba, piocb); 9487 9488 if (phba->sli_rev == LPFC_SLI_REV4) { 9489 iotag = get_wqe_reqtag(piocb); 9490 } else { 9491 cmd = &piocb->iocb; 9492 iotag = cmd->ulpIoTag; 9493 } 9494 9495 if ((piocb->cmd_flag & LPFC_IO_LIBDFC) != 0 || 9496 ulp_command == CMD_ABORT_XRI_CX || 9497 ulp_command == CMD_ABORT_XRI_CN || 9498 ulp_command == CMD_CLOSE_XRI_CN) 9499 continue; 9500 9501 if (piocb->vport != vport) 9502 continue; 9503 9504 pcmd = piocb->cmd_dmabuf; 9505 if (pcmd) 9506 els_command = *(uint32_t *) (pcmd->virt); 9507 9508 if (els_command == ELS_CMD_FARP || 9509 els_command == ELS_CMD_FARPR || 9510 els_command == ELS_CMD_FDISC) 9511 continue; 9512 9513 if (piocb->drvrTimeout > 0) { 9514 if (piocb->drvrTimeout >= timeout) 9515 piocb->drvrTimeout -= timeout; 9516 else 9517 piocb->drvrTimeout = 0; 9518 continue; 9519 } 9520 9521 remote_ID = 0xffffffff; 9522 if (ulp_command != CMD_GEN_REQUEST64_CR) { 9523 remote_ID = did; 9524 } else { 9525 struct lpfc_nodelist *ndlp; 9526 ndlp = __lpfc_findnode_rpi(vport, ulp_context); 9527 if (ndlp) 9528 remote_ID = ndlp->nlp_DID; 9529 } 9530 list_add_tail(&piocb->dlist, &abort_list); 9531 } 9532 if (phba->sli_rev == LPFC_SLI_REV4) 9533 spin_unlock(&pring->ring_lock); 9534 spin_unlock_irq(&phba->hbalock); 9535 9536 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { 9537 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9538 "0127 ELS timeout Data: x%x x%x x%x " 9539 "x%x\n", els_command, 9540 remote_ID, ulp_command, iotag); 9541 9542 spin_lock_irq(&phba->hbalock); 9543 list_del_init(&piocb->dlist); 9544 lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL); 9545 spin_unlock_irq(&phba->hbalock); 9546 } 9547 9548 /* Make sure HBA is alive */ 9549 lpfc_issue_hb_tmo(phba); 9550 9551 if (!list_empty(&pring->txcmplq)) 9552 if (!(phba->pport->load_flag & FC_UNLOADING)) 9553 mod_timer(&vport->els_tmofunc, 9554 jiffies + msecs_to_jiffies(1000 * timeout)); 9555 } 9556 9557 /** 9558 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport 9559 * @vport: pointer to a host virtual N_Port data structure. 9560 * 9561 * This routine is used to clean up all the outstanding ELS commands on a 9562 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport() 9563 * routine. After that, it walks the ELS transmit queue to remove all the 9564 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For 9565 * the IOCBs with a non-NULL completion callback function, the callback 9566 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and 9567 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion 9568 * callback function, the IOCB will simply be released. Finally, it walks 9569 * the ELS transmit completion queue to issue an abort IOCB to any transmit 9570 * completion queue IOCB that is associated with the @vport and is not 9571 * an IOCB from libdfc (i.e., the management plane IOCBs that are not 9572 * part of the discovery state machine) out to HBA by invoking the 9573 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the 9574 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee 9575 * the IOCBs are aborted when this function returns. 9576 **/ 9577 void 9578 lpfc_els_flush_cmd(struct lpfc_vport *vport) 9579 { 9580 LIST_HEAD(abort_list); 9581 struct lpfc_hba *phba = vport->phba; 9582 struct lpfc_sli_ring *pring; 9583 struct lpfc_iocbq *tmp_iocb, *piocb; 9584 u32 ulp_command; 9585 unsigned long iflags = 0; 9586 9587 lpfc_fabric_abort_vport(vport); 9588 9589 /* 9590 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate 9591 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag 9592 * ultimately grabs the ring_lock, the driver must splice the list into 9593 * a working list and release the locks before calling the abort. 9594 */ 9595 spin_lock_irqsave(&phba->hbalock, iflags); 9596 pring = lpfc_phba_elsring(phba); 9597 9598 /* Bail out if we've no ELS wq, like in PCI error recovery case. */ 9599 if (unlikely(!pring)) { 9600 spin_unlock_irqrestore(&phba->hbalock, iflags); 9601 return; 9602 } 9603 9604 if (phba->sli_rev == LPFC_SLI_REV4) 9605 spin_lock(&pring->ring_lock); 9606 9607 /* First we need to issue aborts to outstanding cmds on txcmpl */ 9608 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { 9609 if (piocb->cmd_flag & LPFC_IO_LIBDFC) 9610 continue; 9611 9612 if (piocb->vport != vport) 9613 continue; 9614 9615 if (piocb->cmd_flag & LPFC_DRIVER_ABORTED) 9616 continue; 9617 9618 /* On the ELS ring we can have ELS_REQUESTs or 9619 * GEN_REQUESTs waiting for a response. 9620 */ 9621 ulp_command = get_job_cmnd(phba, piocb); 9622 if (ulp_command == CMD_ELS_REQUEST64_CR) { 9623 list_add_tail(&piocb->dlist, &abort_list); 9624 9625 /* If the link is down when flushing ELS commands 9626 * the firmware will not complete them till after 9627 * the link comes back up. This may confuse 9628 * discovery for the new link up, so we need to 9629 * change the compl routine to just clean up the iocb 9630 * and avoid any retry logic. 9631 */ 9632 if (phba->link_state == LPFC_LINK_DOWN) 9633 piocb->cmd_cmpl = lpfc_cmpl_els_link_down; 9634 } 9635 if (ulp_command == CMD_GEN_REQUEST64_CR) 9636 list_add_tail(&piocb->dlist, &abort_list); 9637 } 9638 9639 if (phba->sli_rev == LPFC_SLI_REV4) 9640 spin_unlock(&pring->ring_lock); 9641 spin_unlock_irqrestore(&phba->hbalock, iflags); 9642 9643 /* Abort each txcmpl iocb on aborted list and remove the dlist links. */ 9644 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { 9645 spin_lock_irqsave(&phba->hbalock, iflags); 9646 list_del_init(&piocb->dlist); 9647 lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL); 9648 spin_unlock_irqrestore(&phba->hbalock, iflags); 9649 } 9650 /* Make sure HBA is alive */ 9651 lpfc_issue_hb_tmo(phba); 9652 9653 if (!list_empty(&abort_list)) 9654 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9655 "3387 abort list for txq not empty\n"); 9656 INIT_LIST_HEAD(&abort_list); 9657 9658 spin_lock_irqsave(&phba->hbalock, iflags); 9659 if (phba->sli_rev == LPFC_SLI_REV4) 9660 spin_lock(&pring->ring_lock); 9661 9662 /* No need to abort the txq list, 9663 * just queue them up for lpfc_sli_cancel_iocbs 9664 */ 9665 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { 9666 ulp_command = get_job_cmnd(phba, piocb); 9667 9668 if (piocb->cmd_flag & LPFC_IO_LIBDFC) 9669 continue; 9670 9671 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ 9672 if (ulp_command == CMD_QUE_RING_BUF_CN || 9673 ulp_command == CMD_QUE_RING_BUF64_CN || 9674 ulp_command == CMD_CLOSE_XRI_CN || 9675 ulp_command == CMD_ABORT_XRI_CN || 9676 ulp_command == CMD_ABORT_XRI_CX) 9677 continue; 9678 9679 if (piocb->vport != vport) 9680 continue; 9681 9682 list_del_init(&piocb->list); 9683 list_add_tail(&piocb->list, &abort_list); 9684 } 9685 9686 /* The same holds true for any FLOGI/FDISC on the fabric_iocb_list */ 9687 if (vport == phba->pport) { 9688 list_for_each_entry_safe(piocb, tmp_iocb, 9689 &phba->fabric_iocb_list, list) { 9690 list_del_init(&piocb->list); 9691 list_add_tail(&piocb->list, &abort_list); 9692 } 9693 } 9694 9695 if (phba->sli_rev == LPFC_SLI_REV4) 9696 spin_unlock(&pring->ring_lock); 9697 spin_unlock_irqrestore(&phba->hbalock, iflags); 9698 9699 /* Cancel all the IOCBs from the completions list */ 9700 lpfc_sli_cancel_iocbs(phba, &abort_list, 9701 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 9702 9703 return; 9704 } 9705 9706 /** 9707 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA 9708 * @phba: pointer to lpfc hba data structure. 9709 * 9710 * This routine is used to clean up all the outstanding ELS commands on a 9711 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba() 9712 * routine. After that, it walks the ELS transmit queue to remove all the 9713 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For 9714 * the IOCBs with the completion callback function associated, the callback 9715 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and 9716 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion 9717 * callback function associated, the IOCB will simply be released. Finally, 9718 * it walks the ELS transmit completion queue to issue an abort IOCB to any 9719 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the 9720 * management plane IOCBs that are not part of the discovery state machine) 9721 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine. 9722 **/ 9723 void 9724 lpfc_els_flush_all_cmd(struct lpfc_hba *phba) 9725 { 9726 struct lpfc_vport *vport; 9727 9728 spin_lock_irq(&phba->port_list_lock); 9729 list_for_each_entry(vport, &phba->port_list, listentry) 9730 lpfc_els_flush_cmd(vport); 9731 spin_unlock_irq(&phba->port_list_lock); 9732 9733 return; 9734 } 9735 9736 /** 9737 * lpfc_send_els_failure_event - Posts an ELS command failure event 9738 * @phba: Pointer to hba context object. 9739 * @cmdiocbp: Pointer to command iocb which reported error. 9740 * @rspiocbp: Pointer to response iocb which reported error. 9741 * 9742 * This function sends an event when there is an ELS command 9743 * failure. 9744 **/ 9745 void 9746 lpfc_send_els_failure_event(struct lpfc_hba *phba, 9747 struct lpfc_iocbq *cmdiocbp, 9748 struct lpfc_iocbq *rspiocbp) 9749 { 9750 struct lpfc_vport *vport = cmdiocbp->vport; 9751 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 9752 struct lpfc_lsrjt_event lsrjt_event; 9753 struct lpfc_fabric_event_header fabric_event; 9754 struct ls_rjt stat; 9755 struct lpfc_nodelist *ndlp; 9756 uint32_t *pcmd; 9757 u32 ulp_status, ulp_word4; 9758 9759 ndlp = cmdiocbp->ndlp; 9760 if (!ndlp) 9761 return; 9762 9763 ulp_status = get_job_ulpstatus(phba, rspiocbp); 9764 ulp_word4 = get_job_word4(phba, rspiocbp); 9765 9766 if (ulp_status == IOSTAT_LS_RJT) { 9767 lsrjt_event.header.event_type = FC_REG_ELS_EVENT; 9768 lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV; 9769 memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname, 9770 sizeof(struct lpfc_name)); 9771 memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename, 9772 sizeof(struct lpfc_name)); 9773 pcmd = (uint32_t *)cmdiocbp->cmd_dmabuf->virt; 9774 lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0; 9775 stat.un.ls_rjt_error_be = cpu_to_be32(ulp_word4); 9776 lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode; 9777 lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp; 9778 fc_host_post_vendor_event(shost, 9779 fc_get_event_number(), 9780 sizeof(lsrjt_event), 9781 (char *)&lsrjt_event, 9782 LPFC_NL_VENDOR_ID); 9783 return; 9784 } 9785 if (ulp_status == IOSTAT_NPORT_BSY || 9786 ulp_status == IOSTAT_FABRIC_BSY) { 9787 fabric_event.event_type = FC_REG_FABRIC_EVENT; 9788 if (ulp_status == IOSTAT_NPORT_BSY) 9789 fabric_event.subcategory = LPFC_EVENT_PORT_BUSY; 9790 else 9791 fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY; 9792 memcpy(fabric_event.wwpn, &ndlp->nlp_portname, 9793 sizeof(struct lpfc_name)); 9794 memcpy(fabric_event.wwnn, &ndlp->nlp_nodename, 9795 sizeof(struct lpfc_name)); 9796 fc_host_post_vendor_event(shost, 9797 fc_get_event_number(), 9798 sizeof(fabric_event), 9799 (char *)&fabric_event, 9800 LPFC_NL_VENDOR_ID); 9801 return; 9802 } 9803 9804 } 9805 9806 /** 9807 * lpfc_send_els_event - Posts unsolicited els event 9808 * @vport: Pointer to vport object. 9809 * @ndlp: Pointer FC node object. 9810 * @payload: ELS command code type. 9811 * 9812 * This function posts an event when there is an incoming 9813 * unsolicited ELS command. 9814 **/ 9815 static void 9816 lpfc_send_els_event(struct lpfc_vport *vport, 9817 struct lpfc_nodelist *ndlp, 9818 uint32_t *payload) 9819 { 9820 struct lpfc_els_event_header *els_data = NULL; 9821 struct lpfc_logo_event *logo_data = NULL; 9822 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 9823 9824 if (*payload == ELS_CMD_LOGO) { 9825 logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL); 9826 if (!logo_data) { 9827 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9828 "0148 Failed to allocate memory " 9829 "for LOGO event\n"); 9830 return; 9831 } 9832 els_data = &logo_data->header; 9833 } else { 9834 els_data = kmalloc(sizeof(struct lpfc_els_event_header), 9835 GFP_KERNEL); 9836 if (!els_data) { 9837 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9838 "0149 Failed to allocate memory " 9839 "for ELS event\n"); 9840 return; 9841 } 9842 } 9843 els_data->event_type = FC_REG_ELS_EVENT; 9844 switch (*payload) { 9845 case ELS_CMD_PLOGI: 9846 els_data->subcategory = LPFC_EVENT_PLOGI_RCV; 9847 break; 9848 case ELS_CMD_PRLO: 9849 els_data->subcategory = LPFC_EVENT_PRLO_RCV; 9850 break; 9851 case ELS_CMD_ADISC: 9852 els_data->subcategory = LPFC_EVENT_ADISC_RCV; 9853 break; 9854 case ELS_CMD_LOGO: 9855 els_data->subcategory = LPFC_EVENT_LOGO_RCV; 9856 /* Copy the WWPN in the LOGO payload */ 9857 memcpy(logo_data->logo_wwpn, &payload[2], 9858 sizeof(struct lpfc_name)); 9859 break; 9860 default: 9861 kfree(els_data); 9862 return; 9863 } 9864 memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); 9865 memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); 9866 if (*payload == ELS_CMD_LOGO) { 9867 fc_host_post_vendor_event(shost, 9868 fc_get_event_number(), 9869 sizeof(struct lpfc_logo_event), 9870 (char *)logo_data, 9871 LPFC_NL_VENDOR_ID); 9872 kfree(logo_data); 9873 } else { 9874 fc_host_post_vendor_event(shost, 9875 fc_get_event_number(), 9876 sizeof(struct lpfc_els_event_header), 9877 (char *)els_data, 9878 LPFC_NL_VENDOR_ID); 9879 kfree(els_data); 9880 } 9881 9882 return; 9883 } 9884 9885 9886 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_li_event_nm, fc_fpin_li_event_types, 9887 FC_FPIN_LI_EVT_TYPES_INIT); 9888 9889 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_deli_event_nm, fc_fpin_deli_event_types, 9890 FC_FPIN_DELI_EVT_TYPES_INIT); 9891 9892 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_congn_event_nm, fc_fpin_congn_event_types, 9893 FC_FPIN_CONGN_EVT_TYPES_INIT); 9894 9895 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_congn_severity_nm, 9896 fc_fpin_congn_severity_types, 9897 FC_FPIN_CONGN_SEVERITY_INIT); 9898 9899 9900 /** 9901 * lpfc_display_fpin_wwpn - Display WWPNs accessible by the attached port 9902 * @phba: Pointer to phba object. 9903 * @wwnlist: Pointer to list of WWPNs in FPIN payload 9904 * @cnt: count of WWPNs in FPIN payload 9905 * 9906 * This routine is called by LI and PC descriptors. 9907 * Limit the number of WWPNs displayed to 6 log messages, 6 per log message 9908 */ 9909 static void 9910 lpfc_display_fpin_wwpn(struct lpfc_hba *phba, __be64 *wwnlist, u32 cnt) 9911 { 9912 char buf[LPFC_FPIN_WWPN_LINE_SZ]; 9913 __be64 wwn; 9914 u64 wwpn; 9915 int i, len; 9916 int line = 0; 9917 int wcnt = 0; 9918 bool endit = false; 9919 9920 len = scnprintf(buf, LPFC_FPIN_WWPN_LINE_SZ, "Accessible WWPNs:"); 9921 for (i = 0; i < cnt; i++) { 9922 /* Are we on the last WWPN */ 9923 if (i == (cnt - 1)) 9924 endit = true; 9925 9926 /* Extract the next WWPN from the payload */ 9927 wwn = *wwnlist++; 9928 wwpn = be64_to_cpu(wwn); 9929 len += scnprintf(buf + len, LPFC_FPIN_WWPN_LINE_SZ - len, 9930 " %016llx", wwpn); 9931 9932 /* Log a message if we are on the last WWPN 9933 * or if we hit the max allowed per message. 9934 */ 9935 wcnt++; 9936 if (wcnt == LPFC_FPIN_WWPN_LINE_CNT || endit) { 9937 buf[len] = 0; 9938 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 9939 "4686 %s\n", buf); 9940 9941 /* Check if we reached the last WWPN */ 9942 if (endit) 9943 return; 9944 9945 /* Limit the number of log message displayed per FPIN */ 9946 line++; 9947 if (line == LPFC_FPIN_WWPN_NUM_LINE) { 9948 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 9949 "4687 %d WWPNs Truncated\n", 9950 cnt - i - 1); 9951 return; 9952 } 9953 9954 /* Start over with next log message */ 9955 wcnt = 0; 9956 len = scnprintf(buf, LPFC_FPIN_WWPN_LINE_SZ, 9957 "Additional WWPNs:"); 9958 } 9959 } 9960 } 9961 9962 /** 9963 * lpfc_els_rcv_fpin_li - Process an FPIN Link Integrity Event. 9964 * @phba: Pointer to phba object. 9965 * @tlv: Pointer to the Link Integrity Notification Descriptor. 9966 * 9967 * This function processes a Link Integrity FPIN event by logging a message. 9968 **/ 9969 static void 9970 lpfc_els_rcv_fpin_li(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 9971 { 9972 struct fc_fn_li_desc *li = (struct fc_fn_li_desc *)tlv; 9973 const char *li_evt_str; 9974 u32 li_evt, cnt; 9975 9976 li_evt = be16_to_cpu(li->event_type); 9977 li_evt_str = lpfc_get_fpin_li_event_nm(li_evt); 9978 cnt = be32_to_cpu(li->pname_count); 9979 9980 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 9981 "4680 FPIN Link Integrity %s (x%x) " 9982 "Detecting PN x%016llx Attached PN x%016llx " 9983 "Duration %d mSecs Count %d Port Cnt %d\n", 9984 li_evt_str, li_evt, 9985 be64_to_cpu(li->detecting_wwpn), 9986 be64_to_cpu(li->attached_wwpn), 9987 be32_to_cpu(li->event_threshold), 9988 be32_to_cpu(li->event_count), cnt); 9989 9990 lpfc_display_fpin_wwpn(phba, (__be64 *)&li->pname_list, cnt); 9991 } 9992 9993 /** 9994 * lpfc_els_rcv_fpin_del - Process an FPIN Delivery Event. 9995 * @phba: Pointer to hba object. 9996 * @tlv: Pointer to the Delivery Notification Descriptor TLV 9997 * 9998 * This function processes a Delivery FPIN event by logging a message. 9999 **/ 10000 static void 10001 lpfc_els_rcv_fpin_del(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 10002 { 10003 struct fc_fn_deli_desc *del = (struct fc_fn_deli_desc *)tlv; 10004 const char *del_rsn_str; 10005 u32 del_rsn; 10006 __be32 *frame; 10007 10008 del_rsn = be16_to_cpu(del->deli_reason_code); 10009 del_rsn_str = lpfc_get_fpin_deli_event_nm(del_rsn); 10010 10011 /* Skip over desc_tag/desc_len header to payload */ 10012 frame = (__be32 *)(del + 1); 10013 10014 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 10015 "4681 FPIN Delivery %s (x%x) " 10016 "Detecting PN x%016llx Attached PN x%016llx " 10017 "DiscHdr0 x%08x " 10018 "DiscHdr1 x%08x DiscHdr2 x%08x DiscHdr3 x%08x " 10019 "DiscHdr4 x%08x DiscHdr5 x%08x\n", 10020 del_rsn_str, del_rsn, 10021 be64_to_cpu(del->detecting_wwpn), 10022 be64_to_cpu(del->attached_wwpn), 10023 be32_to_cpu(frame[0]), 10024 be32_to_cpu(frame[1]), 10025 be32_to_cpu(frame[2]), 10026 be32_to_cpu(frame[3]), 10027 be32_to_cpu(frame[4]), 10028 be32_to_cpu(frame[5])); 10029 } 10030 10031 /** 10032 * lpfc_els_rcv_fpin_peer_cgn - Process a FPIN Peer Congestion Event. 10033 * @phba: Pointer to hba object. 10034 * @tlv: Pointer to the Peer Congestion Notification Descriptor TLV 10035 * 10036 * This function processes a Peer Congestion FPIN event by logging a message. 10037 **/ 10038 static void 10039 lpfc_els_rcv_fpin_peer_cgn(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 10040 { 10041 struct fc_fn_peer_congn_desc *pc = (struct fc_fn_peer_congn_desc *)tlv; 10042 const char *pc_evt_str; 10043 u32 pc_evt, cnt; 10044 10045 pc_evt = be16_to_cpu(pc->event_type); 10046 pc_evt_str = lpfc_get_fpin_congn_event_nm(pc_evt); 10047 cnt = be32_to_cpu(pc->pname_count); 10048 10049 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_ELS, 10050 "4684 FPIN Peer Congestion %s (x%x) " 10051 "Duration %d mSecs " 10052 "Detecting PN x%016llx Attached PN x%016llx " 10053 "Impacted Port Cnt %d\n", 10054 pc_evt_str, pc_evt, 10055 be32_to_cpu(pc->event_period), 10056 be64_to_cpu(pc->detecting_wwpn), 10057 be64_to_cpu(pc->attached_wwpn), 10058 cnt); 10059 10060 lpfc_display_fpin_wwpn(phba, (__be64 *)&pc->pname_list, cnt); 10061 } 10062 10063 /** 10064 * lpfc_els_rcv_fpin_cgn - Process an FPIN Congestion notification 10065 * @phba: Pointer to hba object. 10066 * @tlv: Pointer to the Congestion Notification Descriptor TLV 10067 * 10068 * This function processes an FPIN Congestion Notifiction. The notification 10069 * could be an Alarm or Warning. This routine feeds that data into driver's 10070 * running congestion algorithm. It also processes the FPIN by 10071 * logging a message. It returns 1 to indicate deliver this message 10072 * to the upper layer or 0 to indicate don't deliver it. 10073 **/ 10074 static int 10075 lpfc_els_rcv_fpin_cgn(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 10076 { 10077 struct lpfc_cgn_info *cp; 10078 struct fc_fn_congn_desc *cgn = (struct fc_fn_congn_desc *)tlv; 10079 const char *cgn_evt_str; 10080 u32 cgn_evt; 10081 const char *cgn_sev_str; 10082 u32 cgn_sev; 10083 uint16_t value; 10084 u32 crc; 10085 bool nm_log = false; 10086 int rc = 1; 10087 10088 cgn_evt = be16_to_cpu(cgn->event_type); 10089 cgn_evt_str = lpfc_get_fpin_congn_event_nm(cgn_evt); 10090 cgn_sev = cgn->severity; 10091 cgn_sev_str = lpfc_get_fpin_congn_severity_nm(cgn_sev); 10092 10093 /* The driver only takes action on a Credit Stall or Oversubscription 10094 * event type to engage the IO algorithm. The driver prints an 10095 * unmaskable message only for Lost Credit and Credit Stall. 10096 * TODO: Still need to have definition of host action on clear, 10097 * lost credit and device specific event types. 10098 */ 10099 switch (cgn_evt) { 10100 case FPIN_CONGN_LOST_CREDIT: 10101 nm_log = true; 10102 break; 10103 case FPIN_CONGN_CREDIT_STALL: 10104 nm_log = true; 10105 fallthrough; 10106 case FPIN_CONGN_OVERSUBSCRIPTION: 10107 if (cgn_evt == FPIN_CONGN_OVERSUBSCRIPTION) 10108 nm_log = false; 10109 switch (cgn_sev) { 10110 case FPIN_CONGN_SEVERITY_ERROR: 10111 /* Take action here for an Alarm event */ 10112 if (phba->cmf_active_mode != LPFC_CFG_OFF) { 10113 if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) { 10114 /* Track of alarm cnt for SYNC_WQE */ 10115 atomic_inc(&phba->cgn_sync_alarm_cnt); 10116 } 10117 /* Track alarm cnt for cgn_info regardless 10118 * of whether CMF is configured for Signals 10119 * or FPINs. 10120 */ 10121 atomic_inc(&phba->cgn_fabric_alarm_cnt); 10122 goto cleanup; 10123 } 10124 break; 10125 case FPIN_CONGN_SEVERITY_WARNING: 10126 /* Take action here for a Warning event */ 10127 if (phba->cmf_active_mode != LPFC_CFG_OFF) { 10128 if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) { 10129 /* Track of warning cnt for SYNC_WQE */ 10130 atomic_inc(&phba->cgn_sync_warn_cnt); 10131 } 10132 /* Track warning cnt and freq for cgn_info 10133 * regardless of whether CMF is configured for 10134 * Signals or FPINs. 10135 */ 10136 atomic_inc(&phba->cgn_fabric_warn_cnt); 10137 cleanup: 10138 /* Save frequency in ms */ 10139 phba->cgn_fpin_frequency = 10140 be32_to_cpu(cgn->event_period); 10141 value = phba->cgn_fpin_frequency; 10142 if (phba->cgn_i) { 10143 cp = (struct lpfc_cgn_info *) 10144 phba->cgn_i->virt; 10145 cp->cgn_alarm_freq = 10146 cpu_to_le16(value); 10147 cp->cgn_warn_freq = 10148 cpu_to_le16(value); 10149 crc = lpfc_cgn_calc_crc32 10150 (cp, 10151 LPFC_CGN_INFO_SZ, 10152 LPFC_CGN_CRC32_SEED); 10153 cp->cgn_info_crc = cpu_to_le32(crc); 10154 } 10155 10156 /* Don't deliver to upper layer since 10157 * driver took action on this tlv. 10158 */ 10159 rc = 0; 10160 } 10161 break; 10162 } 10163 break; 10164 } 10165 10166 /* Change the log level to unmaskable for the following event types. */ 10167 lpfc_printf_log(phba, (nm_log ? KERN_WARNING : KERN_INFO), 10168 LOG_CGN_MGMT | LOG_ELS, 10169 "4683 FPIN CONGESTION %s type %s (x%x) Event " 10170 "Duration %d mSecs\n", 10171 cgn_sev_str, cgn_evt_str, cgn_evt, 10172 be32_to_cpu(cgn->event_period)); 10173 return rc; 10174 } 10175 10176 void 10177 lpfc_els_rcv_fpin(struct lpfc_vport *vport, void *p, u32 fpin_length) 10178 { 10179 struct lpfc_hba *phba = vport->phba; 10180 struct fc_els_fpin *fpin = (struct fc_els_fpin *)p; 10181 struct fc_tlv_desc *tlv, *first_tlv, *current_tlv; 10182 const char *dtag_nm; 10183 int desc_cnt = 0, bytes_remain, cnt; 10184 u32 dtag, deliver = 0; 10185 int len; 10186 10187 /* FPINs handled only if we are in the right discovery state */ 10188 if (vport->port_state < LPFC_DISC_AUTH) 10189 return; 10190 10191 /* make sure there is the full fpin header */ 10192 if (fpin_length < sizeof(struct fc_els_fpin)) 10193 return; 10194 10195 /* Sanity check descriptor length. The desc_len value does not 10196 * include space for the ELS command and the desc_len fields. 10197 */ 10198 len = be32_to_cpu(fpin->desc_len); 10199 if (fpin_length < len + sizeof(struct fc_els_fpin)) { 10200 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 10201 "4671 Bad ELS FPIN length %d: %d\n", 10202 len, fpin_length); 10203 return; 10204 } 10205 10206 tlv = (struct fc_tlv_desc *)&fpin->fpin_desc[0]; 10207 first_tlv = tlv; 10208 bytes_remain = fpin_length - offsetof(struct fc_els_fpin, fpin_desc); 10209 bytes_remain = min_t(u32, bytes_remain, be32_to_cpu(fpin->desc_len)); 10210 10211 /* process each descriptor separately */ 10212 while (bytes_remain >= FC_TLV_DESC_HDR_SZ && 10213 bytes_remain >= FC_TLV_DESC_SZ_FROM_LENGTH(tlv)) { 10214 dtag = be32_to_cpu(tlv->desc_tag); 10215 switch (dtag) { 10216 case ELS_DTAG_LNK_INTEGRITY: 10217 lpfc_els_rcv_fpin_li(phba, tlv); 10218 deliver = 1; 10219 break; 10220 case ELS_DTAG_DELIVERY: 10221 lpfc_els_rcv_fpin_del(phba, tlv); 10222 deliver = 1; 10223 break; 10224 case ELS_DTAG_PEER_CONGEST: 10225 lpfc_els_rcv_fpin_peer_cgn(phba, tlv); 10226 deliver = 1; 10227 break; 10228 case ELS_DTAG_CONGESTION: 10229 deliver = lpfc_els_rcv_fpin_cgn(phba, tlv); 10230 break; 10231 default: 10232 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 10233 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 10234 "4678 unknown FPIN descriptor[%d]: " 10235 "tag x%x (%s)\n", 10236 desc_cnt, dtag, dtag_nm); 10237 10238 /* If descriptor is bad, drop the rest of the data */ 10239 return; 10240 } 10241 lpfc_cgn_update_stat(phba, dtag); 10242 cnt = be32_to_cpu(tlv->desc_len); 10243 10244 /* Sanity check descriptor length. The desc_len value does not 10245 * include space for the desc_tag and the desc_len fields. 10246 */ 10247 len -= (cnt + sizeof(struct fc_tlv_desc)); 10248 if (len < 0) { 10249 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 10250 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 10251 "4672 Bad FPIN descriptor TLV length " 10252 "%d: %d %d %s\n", 10253 cnt, len, fpin_length, dtag_nm); 10254 return; 10255 } 10256 10257 current_tlv = tlv; 10258 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv); 10259 tlv = fc_tlv_next_desc(tlv); 10260 10261 /* Format payload such that the FPIN delivered to the 10262 * upper layer is a single descriptor FPIN. 10263 */ 10264 if (desc_cnt) 10265 memcpy(first_tlv, current_tlv, 10266 (cnt + sizeof(struct fc_els_fpin))); 10267 10268 /* Adjust the length so that it only reflects a 10269 * single descriptor FPIN. 10270 */ 10271 fpin_length = cnt + sizeof(struct fc_els_fpin); 10272 fpin->desc_len = cpu_to_be32(fpin_length); 10273 fpin_length += sizeof(struct fc_els_fpin); /* the entire FPIN */ 10274 10275 /* Send every descriptor individually to the upper layer */ 10276 if (deliver) 10277 fc_host_fpin_rcv(lpfc_shost_from_vport(vport), 10278 fpin_length, (char *)fpin, 0); 10279 desc_cnt++; 10280 } 10281 } 10282 10283 /** 10284 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer 10285 * @phba: pointer to lpfc hba data structure. 10286 * @pring: pointer to a SLI ring. 10287 * @vport: pointer to a host virtual N_Port data structure. 10288 * @elsiocb: pointer to lpfc els command iocb data structure. 10289 * 10290 * This routine is used for processing the IOCB associated with a unsolicited 10291 * event. It first determines whether there is an existing ndlp that matches 10292 * the DID from the unsolicited IOCB. If not, it will create a new one with 10293 * the DID from the unsolicited IOCB. The ELS command from the unsolicited 10294 * IOCB is then used to invoke the proper routine and to set up proper state 10295 * of the discovery state machine. 10296 **/ 10297 static void 10298 lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 10299 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) 10300 { 10301 struct lpfc_nodelist *ndlp; 10302 struct ls_rjt stat; 10303 u32 *payload, payload_len; 10304 u32 cmd = 0, did = 0, newnode, status = 0; 10305 uint8_t rjt_exp, rjt_err = 0, init_link = 0; 10306 struct lpfc_wcqe_complete *wcqe_cmpl = NULL; 10307 LPFC_MBOXQ_t *mbox; 10308 10309 if (!vport || !elsiocb->cmd_dmabuf) 10310 goto dropit; 10311 10312 newnode = 0; 10313 wcqe_cmpl = &elsiocb->wcqe_cmpl; 10314 payload = elsiocb->cmd_dmabuf->virt; 10315 if (phba->sli_rev == LPFC_SLI_REV4) 10316 payload_len = wcqe_cmpl->total_data_placed; 10317 else 10318 payload_len = elsiocb->iocb.unsli3.rcvsli3.acc_len; 10319 status = get_job_ulpstatus(phba, elsiocb); 10320 cmd = *payload; 10321 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) 10322 lpfc_sli3_post_buffer(phba, pring, 1); 10323 10324 did = get_job_els_rsp64_did(phba, elsiocb); 10325 if (status) { 10326 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10327 "RCV Unsol ELS: status:x%x/x%x did:x%x", 10328 status, get_job_word4(phba, elsiocb), did); 10329 goto dropit; 10330 } 10331 10332 /* Check to see if link went down during discovery */ 10333 if (lpfc_els_chk_latt(vport)) 10334 goto dropit; 10335 10336 /* Ignore traffic received during vport shutdown. */ 10337 if (vport->load_flag & FC_UNLOADING) 10338 goto dropit; 10339 10340 /* If NPort discovery is delayed drop incoming ELS */ 10341 if ((vport->fc_flag & FC_DISC_DELAYED) && 10342 (cmd != ELS_CMD_PLOGI)) 10343 goto dropit; 10344 10345 ndlp = lpfc_findnode_did(vport, did); 10346 if (!ndlp) { 10347 /* Cannot find existing Fabric ndlp, so allocate a new one */ 10348 ndlp = lpfc_nlp_init(vport, did); 10349 if (!ndlp) 10350 goto dropit; 10351 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 10352 newnode = 1; 10353 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) 10354 ndlp->nlp_type |= NLP_FABRIC; 10355 } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 10356 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 10357 newnode = 1; 10358 } 10359 10360 phba->fc_stat.elsRcvFrame++; 10361 10362 /* 10363 * Do not process any unsolicited ELS commands 10364 * if the ndlp is in DEV_LOSS 10365 */ 10366 spin_lock_irq(&ndlp->lock); 10367 if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) { 10368 spin_unlock_irq(&ndlp->lock); 10369 if (newnode) 10370 lpfc_nlp_put(ndlp); 10371 goto dropit; 10372 } 10373 spin_unlock_irq(&ndlp->lock); 10374 10375 elsiocb->ndlp = lpfc_nlp_get(ndlp); 10376 if (!elsiocb->ndlp) 10377 goto dropit; 10378 elsiocb->vport = vport; 10379 10380 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { 10381 cmd &= ELS_CMD_MASK; 10382 } 10383 /* ELS command <elsCmd> received from NPORT <did> */ 10384 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 10385 "0112 ELS command x%x received from NPORT x%x " 10386 "refcnt %d Data: x%x x%x x%x x%x\n", 10387 cmd, did, kref_read(&ndlp->kref), vport->port_state, 10388 vport->fc_flag, vport->fc_myDID, vport->fc_prevDID); 10389 10390 /* reject till our FLOGI completes or PLOGI assigned DID via PT2PT */ 10391 if ((vport->port_state < LPFC_FABRIC_CFG_LINK) && 10392 (cmd != ELS_CMD_FLOGI) && 10393 !((cmd == ELS_CMD_PLOGI) && (vport->fc_flag & FC_PT2PT))) { 10394 rjt_err = LSRJT_LOGICAL_BSY; 10395 rjt_exp = LSEXP_NOTHING_MORE; 10396 goto lsrjt; 10397 } 10398 10399 switch (cmd) { 10400 case ELS_CMD_PLOGI: 10401 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10402 "RCV PLOGI: did:x%x/ste:x%x flg:x%x", 10403 did, vport->port_state, ndlp->nlp_flag); 10404 10405 phba->fc_stat.elsRcvPLOGI++; 10406 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); 10407 if (phba->sli_rev == LPFC_SLI_REV4 && 10408 (phba->pport->fc_flag & FC_PT2PT)) { 10409 vport->fc_prevDID = vport->fc_myDID; 10410 /* Our DID needs to be updated before registering 10411 * the vfi. This is done in lpfc_rcv_plogi but 10412 * that is called after the reg_vfi. 10413 */ 10414 vport->fc_myDID = 10415 bf_get(els_rsp64_sid, 10416 &elsiocb->wqe.xmit_els_rsp); 10417 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 10418 "3312 Remote port assigned DID x%x " 10419 "%x\n", vport->fc_myDID, 10420 vport->fc_prevDID); 10421 } 10422 10423 lpfc_send_els_event(vport, ndlp, payload); 10424 10425 /* If Nport discovery is delayed, reject PLOGIs */ 10426 if (vport->fc_flag & FC_DISC_DELAYED) { 10427 rjt_err = LSRJT_UNABLE_TPC; 10428 rjt_exp = LSEXP_NOTHING_MORE; 10429 break; 10430 } 10431 10432 if (vport->port_state < LPFC_DISC_AUTH) { 10433 if (!(phba->pport->fc_flag & FC_PT2PT) || 10434 (phba->pport->fc_flag & FC_PT2PT_PLOGI)) { 10435 rjt_err = LSRJT_UNABLE_TPC; 10436 rjt_exp = LSEXP_NOTHING_MORE; 10437 break; 10438 } 10439 } 10440 10441 spin_lock_irq(&ndlp->lock); 10442 ndlp->nlp_flag &= ~NLP_TARGET_REMOVE; 10443 spin_unlock_irq(&ndlp->lock); 10444 10445 lpfc_disc_state_machine(vport, ndlp, elsiocb, 10446 NLP_EVT_RCV_PLOGI); 10447 10448 break; 10449 case ELS_CMD_FLOGI: 10450 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10451 "RCV FLOGI: did:x%x/ste:x%x flg:x%x", 10452 did, vport->port_state, ndlp->nlp_flag); 10453 10454 phba->fc_stat.elsRcvFLOGI++; 10455 10456 /* If the driver believes fabric discovery is done and is ready, 10457 * bounce the link. There is some descrepancy. 10458 */ 10459 if (vport->port_state >= LPFC_LOCAL_CFG_LINK && 10460 vport->fc_flag & FC_PT2PT && 10461 vport->rcv_flogi_cnt >= 1) { 10462 rjt_err = LSRJT_LOGICAL_BSY; 10463 rjt_exp = LSEXP_NOTHING_MORE; 10464 init_link++; 10465 goto lsrjt; 10466 } 10467 10468 lpfc_els_rcv_flogi(vport, elsiocb, ndlp); 10469 /* retain node if our response is deferred */ 10470 if (phba->defer_flogi_acc_flag) 10471 break; 10472 if (newnode) 10473 lpfc_disc_state_machine(vport, ndlp, NULL, 10474 NLP_EVT_DEVICE_RM); 10475 break; 10476 case ELS_CMD_LOGO: 10477 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10478 "RCV LOGO: did:x%x/ste:x%x flg:x%x", 10479 did, vport->port_state, ndlp->nlp_flag); 10480 10481 phba->fc_stat.elsRcvLOGO++; 10482 lpfc_send_els_event(vport, ndlp, payload); 10483 if (vport->port_state < LPFC_DISC_AUTH) { 10484 rjt_err = LSRJT_UNABLE_TPC; 10485 rjt_exp = LSEXP_NOTHING_MORE; 10486 break; 10487 } 10488 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); 10489 if (newnode) 10490 lpfc_disc_state_machine(vport, ndlp, NULL, 10491 NLP_EVT_DEVICE_RM); 10492 break; 10493 case ELS_CMD_PRLO: 10494 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10495 "RCV PRLO: did:x%x/ste:x%x flg:x%x", 10496 did, vport->port_state, ndlp->nlp_flag); 10497 10498 phba->fc_stat.elsRcvPRLO++; 10499 lpfc_send_els_event(vport, ndlp, payload); 10500 if (vport->port_state < LPFC_DISC_AUTH) { 10501 rjt_err = LSRJT_UNABLE_TPC; 10502 rjt_exp = LSEXP_NOTHING_MORE; 10503 break; 10504 } 10505 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); 10506 break; 10507 case ELS_CMD_LCB: 10508 phba->fc_stat.elsRcvLCB++; 10509 lpfc_els_rcv_lcb(vport, elsiocb, ndlp); 10510 break; 10511 case ELS_CMD_RDP: 10512 phba->fc_stat.elsRcvRDP++; 10513 lpfc_els_rcv_rdp(vport, elsiocb, ndlp); 10514 break; 10515 case ELS_CMD_RSCN: 10516 phba->fc_stat.elsRcvRSCN++; 10517 lpfc_els_rcv_rscn(vport, elsiocb, ndlp); 10518 if (newnode) 10519 lpfc_disc_state_machine(vport, ndlp, NULL, 10520 NLP_EVT_DEVICE_RM); 10521 break; 10522 case ELS_CMD_ADISC: 10523 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10524 "RCV ADISC: did:x%x/ste:x%x flg:x%x", 10525 did, vport->port_state, ndlp->nlp_flag); 10526 10527 lpfc_send_els_event(vport, ndlp, payload); 10528 phba->fc_stat.elsRcvADISC++; 10529 if (vport->port_state < LPFC_DISC_AUTH) { 10530 rjt_err = LSRJT_UNABLE_TPC; 10531 rjt_exp = LSEXP_NOTHING_MORE; 10532 break; 10533 } 10534 lpfc_disc_state_machine(vport, ndlp, elsiocb, 10535 NLP_EVT_RCV_ADISC); 10536 break; 10537 case ELS_CMD_PDISC: 10538 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10539 "RCV PDISC: did:x%x/ste:x%x flg:x%x", 10540 did, vport->port_state, ndlp->nlp_flag); 10541 10542 phba->fc_stat.elsRcvPDISC++; 10543 if (vport->port_state < LPFC_DISC_AUTH) { 10544 rjt_err = LSRJT_UNABLE_TPC; 10545 rjt_exp = LSEXP_NOTHING_MORE; 10546 break; 10547 } 10548 lpfc_disc_state_machine(vport, ndlp, elsiocb, 10549 NLP_EVT_RCV_PDISC); 10550 break; 10551 case ELS_CMD_FARPR: 10552 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10553 "RCV FARPR: did:x%x/ste:x%x flg:x%x", 10554 did, vport->port_state, ndlp->nlp_flag); 10555 10556 phba->fc_stat.elsRcvFARPR++; 10557 lpfc_els_rcv_farpr(vport, elsiocb, ndlp); 10558 break; 10559 case ELS_CMD_FARP: 10560 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10561 "RCV FARP: did:x%x/ste:x%x flg:x%x", 10562 did, vport->port_state, ndlp->nlp_flag); 10563 10564 phba->fc_stat.elsRcvFARP++; 10565 lpfc_els_rcv_farp(vport, elsiocb, ndlp); 10566 break; 10567 case ELS_CMD_FAN: 10568 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10569 "RCV FAN: did:x%x/ste:x%x flg:x%x", 10570 did, vport->port_state, ndlp->nlp_flag); 10571 10572 phba->fc_stat.elsRcvFAN++; 10573 lpfc_els_rcv_fan(vport, elsiocb, ndlp); 10574 break; 10575 case ELS_CMD_PRLI: 10576 case ELS_CMD_NVMEPRLI: 10577 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10578 "RCV PRLI: did:x%x/ste:x%x flg:x%x", 10579 did, vport->port_state, ndlp->nlp_flag); 10580 10581 phba->fc_stat.elsRcvPRLI++; 10582 if ((vport->port_state < LPFC_DISC_AUTH) && 10583 (vport->fc_flag & FC_FABRIC)) { 10584 rjt_err = LSRJT_UNABLE_TPC; 10585 rjt_exp = LSEXP_NOTHING_MORE; 10586 break; 10587 } 10588 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); 10589 break; 10590 case ELS_CMD_LIRR: 10591 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10592 "RCV LIRR: did:x%x/ste:x%x flg:x%x", 10593 did, vport->port_state, ndlp->nlp_flag); 10594 10595 phba->fc_stat.elsRcvLIRR++; 10596 lpfc_els_rcv_lirr(vport, elsiocb, ndlp); 10597 if (newnode) 10598 lpfc_disc_state_machine(vport, ndlp, NULL, 10599 NLP_EVT_DEVICE_RM); 10600 break; 10601 case ELS_CMD_RLS: 10602 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10603 "RCV RLS: did:x%x/ste:x%x flg:x%x", 10604 did, vport->port_state, ndlp->nlp_flag); 10605 10606 phba->fc_stat.elsRcvRLS++; 10607 lpfc_els_rcv_rls(vport, elsiocb, ndlp); 10608 if (newnode) 10609 lpfc_disc_state_machine(vport, ndlp, NULL, 10610 NLP_EVT_DEVICE_RM); 10611 break; 10612 case ELS_CMD_RPL: 10613 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10614 "RCV RPL: did:x%x/ste:x%x flg:x%x", 10615 did, vport->port_state, ndlp->nlp_flag); 10616 10617 phba->fc_stat.elsRcvRPL++; 10618 lpfc_els_rcv_rpl(vport, elsiocb, ndlp); 10619 if (newnode) 10620 lpfc_disc_state_machine(vport, ndlp, NULL, 10621 NLP_EVT_DEVICE_RM); 10622 break; 10623 case ELS_CMD_RNID: 10624 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10625 "RCV RNID: did:x%x/ste:x%x flg:x%x", 10626 did, vport->port_state, ndlp->nlp_flag); 10627 10628 phba->fc_stat.elsRcvRNID++; 10629 lpfc_els_rcv_rnid(vport, elsiocb, ndlp); 10630 if (newnode) 10631 lpfc_disc_state_machine(vport, ndlp, NULL, 10632 NLP_EVT_DEVICE_RM); 10633 break; 10634 case ELS_CMD_RTV: 10635 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10636 "RCV RTV: did:x%x/ste:x%x flg:x%x", 10637 did, vport->port_state, ndlp->nlp_flag); 10638 phba->fc_stat.elsRcvRTV++; 10639 lpfc_els_rcv_rtv(vport, elsiocb, ndlp); 10640 if (newnode) 10641 lpfc_disc_state_machine(vport, ndlp, NULL, 10642 NLP_EVT_DEVICE_RM); 10643 break; 10644 case ELS_CMD_RRQ: 10645 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10646 "RCV RRQ: did:x%x/ste:x%x flg:x%x", 10647 did, vport->port_state, ndlp->nlp_flag); 10648 10649 phba->fc_stat.elsRcvRRQ++; 10650 lpfc_els_rcv_rrq(vport, elsiocb, ndlp); 10651 if (newnode) 10652 lpfc_disc_state_machine(vport, ndlp, NULL, 10653 NLP_EVT_DEVICE_RM); 10654 break; 10655 case ELS_CMD_ECHO: 10656 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10657 "RCV ECHO: did:x%x/ste:x%x flg:x%x", 10658 did, vport->port_state, ndlp->nlp_flag); 10659 10660 phba->fc_stat.elsRcvECHO++; 10661 lpfc_els_rcv_echo(vport, elsiocb, ndlp); 10662 if (newnode) 10663 lpfc_disc_state_machine(vport, ndlp, NULL, 10664 NLP_EVT_DEVICE_RM); 10665 break; 10666 case ELS_CMD_REC: 10667 /* receive this due to exchange closed */ 10668 rjt_err = LSRJT_UNABLE_TPC; 10669 rjt_exp = LSEXP_INVALID_OX_RX; 10670 break; 10671 case ELS_CMD_FPIN: 10672 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10673 "RCV FPIN: did:x%x/ste:x%x flg:x%x", 10674 did, vport->port_state, ndlp->nlp_flag); 10675 10676 lpfc_els_rcv_fpin(vport, (struct fc_els_fpin *)payload, 10677 payload_len); 10678 10679 /* There are no replies, so no rjt codes */ 10680 break; 10681 case ELS_CMD_EDC: 10682 lpfc_els_rcv_edc(vport, elsiocb, ndlp); 10683 break; 10684 case ELS_CMD_RDF: 10685 phba->fc_stat.elsRcvRDF++; 10686 /* Accept RDF only from fabric controller */ 10687 if (did != Fabric_Cntl_DID) { 10688 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS, 10689 "1115 Received RDF from invalid DID " 10690 "x%x\n", did); 10691 rjt_err = LSRJT_PROTOCOL_ERR; 10692 rjt_exp = LSEXP_NOTHING_MORE; 10693 goto lsrjt; 10694 } 10695 10696 lpfc_els_rcv_rdf(vport, elsiocb, ndlp); 10697 break; 10698 default: 10699 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10700 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", 10701 cmd, did, vport->port_state); 10702 10703 /* Unsupported ELS command, reject */ 10704 rjt_err = LSRJT_CMD_UNSUPPORTED; 10705 rjt_exp = LSEXP_NOTHING_MORE; 10706 10707 /* Unknown ELS command <elsCmd> received from NPORT <did> */ 10708 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10709 "0115 Unknown ELS command x%x " 10710 "received from NPORT x%x\n", cmd, did); 10711 if (newnode) 10712 lpfc_disc_state_machine(vport, ndlp, NULL, 10713 NLP_EVT_DEVICE_RM); 10714 break; 10715 } 10716 10717 lsrjt: 10718 /* check if need to LS_RJT received ELS cmd */ 10719 if (rjt_err) { 10720 memset(&stat, 0, sizeof(stat)); 10721 stat.un.b.lsRjtRsnCode = rjt_err; 10722 stat.un.b.lsRjtRsnCodeExp = rjt_exp; 10723 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, 10724 NULL); 10725 /* Remove the reference from above for new nodes. */ 10726 if (newnode) 10727 lpfc_disc_state_machine(vport, ndlp, NULL, 10728 NLP_EVT_DEVICE_RM); 10729 } 10730 10731 /* Release the reference on this elsiocb, not the ndlp. */ 10732 lpfc_nlp_put(elsiocb->ndlp); 10733 elsiocb->ndlp = NULL; 10734 10735 /* Special case. Driver received an unsolicited command that 10736 * unsupportable given the driver's current state. Reset the 10737 * link and start over. 10738 */ 10739 if (init_link) { 10740 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 10741 if (!mbox) 10742 return; 10743 lpfc_linkdown(phba); 10744 lpfc_init_link(phba, mbox, 10745 phba->cfg_topology, 10746 phba->cfg_link_speed); 10747 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 10748 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 10749 mbox->vport = vport; 10750 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == 10751 MBX_NOT_FINISHED) 10752 mempool_free(mbox, phba->mbox_mem_pool); 10753 } 10754 10755 return; 10756 10757 dropit: 10758 if (vport && !(vport->load_flag & FC_UNLOADING)) 10759 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10760 "0111 Dropping received ELS cmd " 10761 "Data: x%x x%x x%x x%x\n", 10762 cmd, status, get_job_word4(phba, elsiocb), did); 10763 10764 phba->fc_stat.elsRcvDrop++; 10765 } 10766 10767 /** 10768 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring 10769 * @phba: pointer to lpfc hba data structure. 10770 * @pring: pointer to a SLI ring. 10771 * @elsiocb: pointer to lpfc els iocb data structure. 10772 * 10773 * This routine is used to process an unsolicited event received from a SLI 10774 * (Service Level Interface) ring. The actual processing of the data buffer 10775 * associated with the unsolicited event is done by invoking the routine 10776 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the 10777 * SLI ring on which the unsolicited event was received. 10778 **/ 10779 void 10780 lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 10781 struct lpfc_iocbq *elsiocb) 10782 { 10783 struct lpfc_vport *vport = elsiocb->vport; 10784 u32 ulp_command, status, parameter, bde_count = 0; 10785 IOCB_t *icmd; 10786 struct lpfc_wcqe_complete *wcqe_cmpl = NULL; 10787 struct lpfc_dmabuf *bdeBuf1 = elsiocb->cmd_dmabuf; 10788 struct lpfc_dmabuf *bdeBuf2 = elsiocb->bpl_dmabuf; 10789 dma_addr_t paddr; 10790 10791 elsiocb->cmd_dmabuf = NULL; 10792 elsiocb->rsp_dmabuf = NULL; 10793 elsiocb->bpl_dmabuf = NULL; 10794 10795 wcqe_cmpl = &elsiocb->wcqe_cmpl; 10796 ulp_command = get_job_cmnd(phba, elsiocb); 10797 status = get_job_ulpstatus(phba, elsiocb); 10798 parameter = get_job_word4(phba, elsiocb); 10799 if (phba->sli_rev == LPFC_SLI_REV4) 10800 bde_count = wcqe_cmpl->word3; 10801 else 10802 bde_count = elsiocb->iocb.ulpBdeCount; 10803 10804 if (status == IOSTAT_NEED_BUFFER) { 10805 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 10806 } else if (status == IOSTAT_LOCAL_REJECT && 10807 (parameter & IOERR_PARAM_MASK) == 10808 IOERR_RCV_BUFFER_WAITING) { 10809 phba->fc_stat.NoRcvBuf++; 10810 /* Not enough posted buffers; Try posting more buffers */ 10811 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) 10812 lpfc_sli3_post_buffer(phba, pring, 0); 10813 return; 10814 } 10815 10816 if (phba->sli_rev == LPFC_SLI_REV3) { 10817 icmd = &elsiocb->iocb; 10818 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 10819 (ulp_command == CMD_IOCB_RCV_ELS64_CX || 10820 ulp_command == CMD_IOCB_RCV_SEQ64_CX)) { 10821 if (icmd->unsli3.rcvsli3.vpi == 0xffff) 10822 vport = phba->pport; 10823 else 10824 vport = lpfc_find_vport_by_vpid(phba, 10825 icmd->unsli3.rcvsli3.vpi); 10826 } 10827 } 10828 10829 /* If there are no BDEs associated 10830 * with this IOCB, there is nothing to do. 10831 */ 10832 if (bde_count == 0) 10833 return; 10834 10835 /* Account for SLI2 or SLI3 and later unsolicited buffering */ 10836 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { 10837 elsiocb->cmd_dmabuf = bdeBuf1; 10838 if (bde_count == 2) 10839 elsiocb->bpl_dmabuf = bdeBuf2; 10840 } else { 10841 icmd = &elsiocb->iocb; 10842 paddr = getPaddr(icmd->un.cont64[0].addrHigh, 10843 icmd->un.cont64[0].addrLow); 10844 elsiocb->cmd_dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, 10845 paddr); 10846 if (bde_count == 2) { 10847 paddr = getPaddr(icmd->un.cont64[1].addrHigh, 10848 icmd->un.cont64[1].addrLow); 10849 elsiocb->bpl_dmabuf = lpfc_sli_ringpostbuf_get(phba, 10850 pring, 10851 paddr); 10852 } 10853 } 10854 10855 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); 10856 /* 10857 * The different unsolicited event handlers would tell us 10858 * if they are done with "mp" by setting cmd_dmabuf to NULL. 10859 */ 10860 if (elsiocb->cmd_dmabuf) { 10861 lpfc_in_buf_free(phba, elsiocb->cmd_dmabuf); 10862 elsiocb->cmd_dmabuf = NULL; 10863 } 10864 10865 if (elsiocb->bpl_dmabuf) { 10866 lpfc_in_buf_free(phba, elsiocb->bpl_dmabuf); 10867 elsiocb->bpl_dmabuf = NULL; 10868 } 10869 10870 } 10871 10872 static void 10873 lpfc_start_fdmi(struct lpfc_vport *vport) 10874 { 10875 struct lpfc_nodelist *ndlp; 10876 10877 /* If this is the first time, allocate an ndlp and initialize 10878 * it. Otherwise, make sure the node is enabled and then do the 10879 * login. 10880 */ 10881 ndlp = lpfc_findnode_did(vport, FDMI_DID); 10882 if (!ndlp) { 10883 ndlp = lpfc_nlp_init(vport, FDMI_DID); 10884 if (ndlp) { 10885 ndlp->nlp_type |= NLP_FABRIC; 10886 } else { 10887 return; 10888 } 10889 } 10890 10891 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 10892 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 10893 } 10894 10895 /** 10896 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr 10897 * @phba: pointer to lpfc hba data structure. 10898 * @vport: pointer to a virtual N_Port data structure. 10899 * 10900 * This routine issues a Port Login (PLOGI) to the Name Server with 10901 * State Change Request (SCR) for a @vport. This routine will create an 10902 * ndlp for the Name Server associated to the @vport if such node does 10903 * not already exist. The PLOGI to Name Server is issued by invoking the 10904 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface 10905 * (FDMI) is configured to the @vport, a FDMI node will be created and 10906 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine. 10907 **/ 10908 void 10909 lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) 10910 { 10911 struct lpfc_nodelist *ndlp; 10912 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 10913 10914 /* 10915 * If lpfc_delay_discovery parameter is set and the clean address 10916 * bit is cleared and fc fabric parameters chenged, delay FC NPort 10917 * discovery. 10918 */ 10919 spin_lock_irq(shost->host_lock); 10920 if (vport->fc_flag & FC_DISC_DELAYED) { 10921 spin_unlock_irq(shost->host_lock); 10922 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10923 "3334 Delay fc port discovery for %d secs\n", 10924 phba->fc_ratov); 10925 mod_timer(&vport->delayed_disc_tmo, 10926 jiffies + msecs_to_jiffies(1000 * phba->fc_ratov)); 10927 return; 10928 } 10929 spin_unlock_irq(shost->host_lock); 10930 10931 ndlp = lpfc_findnode_did(vport, NameServer_DID); 10932 if (!ndlp) { 10933 ndlp = lpfc_nlp_init(vport, NameServer_DID); 10934 if (!ndlp) { 10935 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 10936 lpfc_disc_start(vport); 10937 return; 10938 } 10939 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 10940 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10941 "0251 NameServer login: no memory\n"); 10942 return; 10943 } 10944 } 10945 10946 ndlp->nlp_type |= NLP_FABRIC; 10947 10948 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 10949 10950 if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { 10951 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 10952 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10953 "0252 Cannot issue NameServer login\n"); 10954 return; 10955 } 10956 10957 if ((phba->cfg_enable_SmartSAN || 10958 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) && 10959 (vport->load_flag & FC_ALLOW_FDMI)) 10960 lpfc_start_fdmi(vport); 10961 } 10962 10963 /** 10964 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport 10965 * @phba: pointer to lpfc hba data structure. 10966 * @pmb: pointer to the driver internal queue element for mailbox command. 10967 * 10968 * This routine is the completion callback function to register new vport 10969 * mailbox command. If the new vport mailbox command completes successfully, 10970 * the fabric registration login shall be performed on physical port (the 10971 * new vport created is actually a physical port, with VPI 0) or the port 10972 * login to Name Server for State Change Request (SCR) will be performed 10973 * on virtual port (real virtual port, with VPI greater than 0). 10974 **/ 10975 static void 10976 lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 10977 { 10978 struct lpfc_vport *vport = pmb->vport; 10979 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 10980 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; 10981 MAILBOX_t *mb = &pmb->u.mb; 10982 int rc; 10983 10984 spin_lock_irq(shost->host_lock); 10985 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 10986 spin_unlock_irq(shost->host_lock); 10987 10988 if (mb->mbxStatus) { 10989 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10990 "0915 Register VPI failed : Status: x%x" 10991 " upd bit: x%x \n", mb->mbxStatus, 10992 mb->un.varRegVpi.upd); 10993 if (phba->sli_rev == LPFC_SLI_REV4 && 10994 mb->un.varRegVpi.upd) 10995 goto mbox_err_exit ; 10996 10997 switch (mb->mbxStatus) { 10998 case 0x11: /* unsupported feature */ 10999 case 0x9603: /* max_vpi exceeded */ 11000 case 0x9602: /* Link event since CLEAR_LA */ 11001 /* giving up on vport registration */ 11002 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11003 spin_lock_irq(shost->host_lock); 11004 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 11005 spin_unlock_irq(shost->host_lock); 11006 lpfc_can_disctmo(vport); 11007 break; 11008 /* If reg_vpi fail with invalid VPI status, re-init VPI */ 11009 case 0x20: 11010 spin_lock_irq(shost->host_lock); 11011 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 11012 spin_unlock_irq(shost->host_lock); 11013 lpfc_init_vpi(phba, pmb, vport->vpi); 11014 pmb->vport = vport; 11015 pmb->mbox_cmpl = lpfc_init_vpi_cmpl; 11016 rc = lpfc_sli_issue_mbox(phba, pmb, 11017 MBX_NOWAIT); 11018 if (rc == MBX_NOT_FINISHED) { 11019 lpfc_printf_vlog(vport, KERN_ERR, 11020 LOG_TRACE_EVENT, 11021 "2732 Failed to issue INIT_VPI" 11022 " mailbox command\n"); 11023 } else { 11024 lpfc_nlp_put(ndlp); 11025 return; 11026 } 11027 fallthrough; 11028 default: 11029 /* Try to recover from this error */ 11030 if (phba->sli_rev == LPFC_SLI_REV4) 11031 lpfc_sli4_unreg_all_rpis(vport); 11032 lpfc_mbx_unreg_vpi(vport); 11033 spin_lock_irq(shost->host_lock); 11034 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 11035 spin_unlock_irq(shost->host_lock); 11036 if (mb->mbxStatus == MBX_NOT_FINISHED) 11037 break; 11038 if ((vport->port_type == LPFC_PHYSICAL_PORT) && 11039 !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) { 11040 if (phba->sli_rev == LPFC_SLI_REV4) 11041 lpfc_issue_init_vfi(vport); 11042 else 11043 lpfc_initial_flogi(vport); 11044 } else { 11045 lpfc_initial_fdisc(vport); 11046 } 11047 break; 11048 } 11049 } else { 11050 spin_lock_irq(shost->host_lock); 11051 vport->vpi_state |= LPFC_VPI_REGISTERED; 11052 spin_unlock_irq(shost->host_lock); 11053 if (vport == phba->pport) { 11054 if (phba->sli_rev < LPFC_SLI_REV4) 11055 lpfc_issue_fabric_reglogin(vport); 11056 else { 11057 /* 11058 * If the physical port is instantiated using 11059 * FDISC, do not start vport discovery. 11060 */ 11061 if (vport->port_state != LPFC_FDISC) 11062 lpfc_start_fdiscs(phba); 11063 lpfc_do_scr_ns_plogi(phba, vport); 11064 } 11065 } else { 11066 lpfc_do_scr_ns_plogi(phba, vport); 11067 } 11068 } 11069 mbox_err_exit: 11070 /* Now, we decrement the ndlp reference count held for this 11071 * callback function 11072 */ 11073 lpfc_nlp_put(ndlp); 11074 11075 mempool_free(pmb, phba->mbox_mem_pool); 11076 return; 11077 } 11078 11079 /** 11080 * lpfc_register_new_vport - Register a new vport with a HBA 11081 * @phba: pointer to lpfc hba data structure. 11082 * @vport: pointer to a host virtual N_Port data structure. 11083 * @ndlp: pointer to a node-list data structure. 11084 * 11085 * This routine registers the @vport as a new virtual port with a HBA. 11086 * It is done through a registering vpi mailbox command. 11087 **/ 11088 void 11089 lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, 11090 struct lpfc_nodelist *ndlp) 11091 { 11092 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 11093 LPFC_MBOXQ_t *mbox; 11094 11095 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 11096 if (mbox) { 11097 lpfc_reg_vpi(vport, mbox); 11098 mbox->vport = vport; 11099 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 11100 if (!mbox->ctx_ndlp) { 11101 mempool_free(mbox, phba->mbox_mem_pool); 11102 goto mbox_err_exit; 11103 } 11104 11105 mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; 11106 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 11107 == MBX_NOT_FINISHED) { 11108 /* mailbox command not success, decrement ndlp 11109 * reference count for this command 11110 */ 11111 lpfc_nlp_put(ndlp); 11112 mempool_free(mbox, phba->mbox_mem_pool); 11113 11114 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11115 "0253 Register VPI: Can't send mbox\n"); 11116 goto mbox_err_exit; 11117 } 11118 } else { 11119 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11120 "0254 Register VPI: no memory\n"); 11121 goto mbox_err_exit; 11122 } 11123 return; 11124 11125 mbox_err_exit: 11126 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11127 spin_lock_irq(shost->host_lock); 11128 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 11129 spin_unlock_irq(shost->host_lock); 11130 return; 11131 } 11132 11133 /** 11134 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer 11135 * @phba: pointer to lpfc hba data structure. 11136 * 11137 * This routine cancels the retry delay timers to all the vports. 11138 **/ 11139 void 11140 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba) 11141 { 11142 struct lpfc_vport **vports; 11143 struct lpfc_nodelist *ndlp; 11144 uint32_t link_state; 11145 int i; 11146 11147 /* Treat this failure as linkdown for all vports */ 11148 link_state = phba->link_state; 11149 lpfc_linkdown(phba); 11150 phba->link_state = link_state; 11151 11152 vports = lpfc_create_vport_work_array(phba); 11153 11154 if (vports) { 11155 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 11156 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 11157 if (ndlp) 11158 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 11159 lpfc_els_flush_cmd(vports[i]); 11160 } 11161 lpfc_destroy_vport_work_array(phba, vports); 11162 } 11163 } 11164 11165 /** 11166 * lpfc_retry_pport_discovery - Start timer to retry FLOGI. 11167 * @phba: pointer to lpfc hba data structure. 11168 * 11169 * This routine abort all pending discovery commands and 11170 * start a timer to retry FLOGI for the physical port 11171 * discovery. 11172 **/ 11173 void 11174 lpfc_retry_pport_discovery(struct lpfc_hba *phba) 11175 { 11176 struct lpfc_nodelist *ndlp; 11177 11178 /* Cancel the all vports retry delay retry timers */ 11179 lpfc_cancel_all_vport_retry_delay_timer(phba); 11180 11181 /* If fabric require FLOGI, then re-instantiate physical login */ 11182 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 11183 if (!ndlp) 11184 return; 11185 11186 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 11187 spin_lock_irq(&ndlp->lock); 11188 ndlp->nlp_flag |= NLP_DELAY_TMO; 11189 spin_unlock_irq(&ndlp->lock); 11190 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI; 11191 phba->pport->port_state = LPFC_FLOGI; 11192 return; 11193 } 11194 11195 /** 11196 * lpfc_fabric_login_reqd - Check if FLOGI required. 11197 * @phba: pointer to lpfc hba data structure. 11198 * @cmdiocb: pointer to FDISC command iocb. 11199 * @rspiocb: pointer to FDISC response iocb. 11200 * 11201 * This routine checks if a FLOGI is reguired for FDISC 11202 * to succeed. 11203 **/ 11204 static int 11205 lpfc_fabric_login_reqd(struct lpfc_hba *phba, 11206 struct lpfc_iocbq *cmdiocb, 11207 struct lpfc_iocbq *rspiocb) 11208 { 11209 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 11210 u32 ulp_word4 = get_job_word4(phba, rspiocb); 11211 11212 if (ulp_status != IOSTAT_FABRIC_RJT || 11213 ulp_word4 != RJT_LOGIN_REQUIRED) 11214 return 0; 11215 else 11216 return 1; 11217 } 11218 11219 /** 11220 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command 11221 * @phba: pointer to lpfc hba data structure. 11222 * @cmdiocb: pointer to lpfc command iocb data structure. 11223 * @rspiocb: pointer to lpfc response iocb data structure. 11224 * 11225 * This routine is the completion callback function to a Fabric Discover 11226 * (FDISC) ELS command. Since all the FDISC ELS commands are issued 11227 * single threaded, each FDISC completion callback function will reset 11228 * the discovery timer for all vports such that the timers will not get 11229 * unnecessary timeout. The function checks the FDISC IOCB status. If error 11230 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the 11231 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID 11232 * assigned to the vport has been changed with the completion of the FDISC 11233 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index) 11234 * are unregistered from the HBA, and then the lpfc_register_new_vport() 11235 * routine is invoked to register new vport with the HBA. Otherwise, the 11236 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name 11237 * Server for State Change Request (SCR). 11238 **/ 11239 static void 11240 lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 11241 struct lpfc_iocbq *rspiocb) 11242 { 11243 struct lpfc_vport *vport = cmdiocb->vport; 11244 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 11245 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 11246 struct lpfc_nodelist *np; 11247 struct lpfc_nodelist *next_np; 11248 struct lpfc_iocbq *piocb; 11249 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf, *prsp; 11250 struct serv_parm *sp; 11251 uint8_t fabric_param_changed; 11252 u32 ulp_status, ulp_word4; 11253 11254 ulp_status = get_job_ulpstatus(phba, rspiocb); 11255 ulp_word4 = get_job_word4(phba, rspiocb); 11256 11257 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 11258 "0123 FDISC completes. x%x/x%x prevDID: x%x\n", 11259 ulp_status, ulp_word4, 11260 vport->fc_prevDID); 11261 /* Since all FDISCs are being single threaded, we 11262 * must reset the discovery timer for ALL vports 11263 * waiting to send FDISC when one completes. 11264 */ 11265 list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { 11266 lpfc_set_disctmo(piocb->vport); 11267 } 11268 11269 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11270 "FDISC cmpl: status:x%x/x%x prevdid:x%x", 11271 ulp_status, ulp_word4, vport->fc_prevDID); 11272 11273 if (ulp_status) { 11274 11275 if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) { 11276 lpfc_retry_pport_discovery(phba); 11277 goto out; 11278 } 11279 11280 /* Check for retry */ 11281 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) 11282 goto out; 11283 /* FDISC failed */ 11284 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11285 "0126 FDISC failed. (x%x/x%x)\n", 11286 ulp_status, ulp_word4); 11287 goto fdisc_failed; 11288 } 11289 11290 lpfc_check_nlp_post_devloss(vport, ndlp); 11291 11292 spin_lock_irq(shost->host_lock); 11293 vport->fc_flag &= ~FC_VPORT_CVL_RCVD; 11294 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; 11295 vport->fc_flag |= FC_FABRIC; 11296 if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP) 11297 vport->fc_flag |= FC_PUBLIC_LOOP; 11298 spin_unlock_irq(shost->host_lock); 11299 11300 vport->fc_myDID = ulp_word4 & Mask_DID; 11301 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); 11302 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 11303 if (!prsp) 11304 goto out; 11305 sp = prsp->virt + sizeof(uint32_t); 11306 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); 11307 memcpy(&vport->fabric_portname, &sp->portName, 11308 sizeof(struct lpfc_name)); 11309 memcpy(&vport->fabric_nodename, &sp->nodeName, 11310 sizeof(struct lpfc_name)); 11311 if (fabric_param_changed && 11312 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { 11313 /* If our NportID changed, we need to ensure all 11314 * remaining NPORTs get unreg_login'ed so we can 11315 * issue unreg_vpi. 11316 */ 11317 list_for_each_entry_safe(np, next_np, 11318 &vport->fc_nodes, nlp_listp) { 11319 if ((np->nlp_state != NLP_STE_NPR_NODE) || 11320 !(np->nlp_flag & NLP_NPR_ADISC)) 11321 continue; 11322 spin_lock_irq(&ndlp->lock); 11323 np->nlp_flag &= ~NLP_NPR_ADISC; 11324 spin_unlock_irq(&ndlp->lock); 11325 lpfc_unreg_rpi(vport, np); 11326 } 11327 lpfc_cleanup_pending_mbox(vport); 11328 11329 if (phba->sli_rev == LPFC_SLI_REV4) 11330 lpfc_sli4_unreg_all_rpis(vport); 11331 11332 lpfc_mbx_unreg_vpi(vport); 11333 spin_lock_irq(shost->host_lock); 11334 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 11335 if (phba->sli_rev == LPFC_SLI_REV4) 11336 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 11337 else 11338 vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG; 11339 spin_unlock_irq(shost->host_lock); 11340 } else if ((phba->sli_rev == LPFC_SLI_REV4) && 11341 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { 11342 /* 11343 * Driver needs to re-reg VPI in order for f/w 11344 * to update the MAC address. 11345 */ 11346 lpfc_register_new_vport(phba, vport, ndlp); 11347 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 11348 goto out; 11349 } 11350 11351 if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI) 11352 lpfc_issue_init_vpi(vport); 11353 else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) 11354 lpfc_register_new_vport(phba, vport, ndlp); 11355 else 11356 lpfc_do_scr_ns_plogi(phba, vport); 11357 11358 /* The FDISC completed successfully. Move the fabric ndlp to 11359 * UNMAPPED state and register with the transport. 11360 */ 11361 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 11362 goto out; 11363 11364 fdisc_failed: 11365 if (vport->fc_vport && 11366 (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS)) 11367 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11368 /* Cancel discovery timer */ 11369 lpfc_can_disctmo(vport); 11370 out: 11371 lpfc_els_free_iocb(phba, cmdiocb); 11372 lpfc_nlp_put(ndlp); 11373 } 11374 11375 /** 11376 * lpfc_issue_els_fdisc - Issue a fdisc iocb command 11377 * @vport: pointer to a virtual N_Port data structure. 11378 * @ndlp: pointer to a node-list data structure. 11379 * @retry: number of retries to the command IOCB. 11380 * 11381 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to 11382 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb() 11383 * routine to issue the IOCB, which makes sure only one outstanding fabric 11384 * IOCB will be sent off HBA at any given time. 11385 * 11386 * Note that the ndlp reference count will be incremented by 1 for holding the 11387 * ndlp and the reference to ndlp will be stored into the ndlp field of 11388 * the IOCB for the completion callback function to the FDISC ELS command. 11389 * 11390 * Return code 11391 * 0 - Successfully issued fdisc iocb command 11392 * 1 - Failed to issue fdisc iocb command 11393 **/ 11394 static int 11395 lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 11396 uint8_t retry) 11397 { 11398 struct lpfc_hba *phba = vport->phba; 11399 IOCB_t *icmd; 11400 union lpfc_wqe128 *wqe = NULL; 11401 struct lpfc_iocbq *elsiocb; 11402 struct serv_parm *sp; 11403 uint8_t *pcmd; 11404 uint16_t cmdsize; 11405 int did = ndlp->nlp_DID; 11406 int rc; 11407 11408 vport->port_state = LPFC_FDISC; 11409 vport->fc_myDID = 0; 11410 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); 11411 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, 11412 ELS_CMD_FDISC); 11413 if (!elsiocb) { 11414 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11415 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11416 "0255 Issue FDISC: no IOCB\n"); 11417 return 1; 11418 } 11419 11420 if (phba->sli_rev == LPFC_SLI_REV4) { 11421 wqe = &elsiocb->wqe; 11422 bf_set(els_req64_sid, &wqe->els_req, 0); 11423 bf_set(els_req64_sp, &wqe->els_req, 1); 11424 } else { 11425 icmd = &elsiocb->iocb; 11426 icmd->un.elsreq64.myID = 0; 11427 icmd->un.elsreq64.fl = 1; 11428 icmd->ulpCt_h = 1; 11429 icmd->ulpCt_l = 0; 11430 } 11431 11432 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 11433 *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; 11434 pcmd += sizeof(uint32_t); /* CSP Word 1 */ 11435 memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); 11436 sp = (struct serv_parm *) pcmd; 11437 /* Setup CSPs accordingly for Fabric */ 11438 sp->cmn.e_d_tov = 0; 11439 sp->cmn.w2.r_a_tov = 0; 11440 sp->cmn.virtual_fabric_support = 0; 11441 sp->cls1.classValid = 0; 11442 sp->cls2.seqDelivery = 1; 11443 sp->cls3.seqDelivery = 1; 11444 11445 pcmd += sizeof(uint32_t); /* CSP Word 2 */ 11446 pcmd += sizeof(uint32_t); /* CSP Word 3 */ 11447 pcmd += sizeof(uint32_t); /* CSP Word 4 */ 11448 pcmd += sizeof(uint32_t); /* Port Name */ 11449 memcpy(pcmd, &vport->fc_portname, 8); 11450 pcmd += sizeof(uint32_t); /* Node Name */ 11451 pcmd += sizeof(uint32_t); /* Node Name */ 11452 memcpy(pcmd, &vport->fc_nodename, 8); 11453 sp->cmn.valid_vendor_ver_level = 0; 11454 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion)); 11455 lpfc_set_disctmo(vport); 11456 11457 phba->fc_stat.elsXmitFDISC++; 11458 elsiocb->cmd_cmpl = lpfc_cmpl_els_fdisc; 11459 11460 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11461 "Issue FDISC: did:x%x", 11462 did, 0, 0); 11463 11464 elsiocb->ndlp = lpfc_nlp_get(ndlp); 11465 if (!elsiocb->ndlp) 11466 goto err_out; 11467 11468 rc = lpfc_issue_fabric_iocb(phba, elsiocb); 11469 if (rc == IOCB_ERROR) { 11470 lpfc_nlp_put(ndlp); 11471 goto err_out; 11472 } 11473 11474 lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); 11475 return 0; 11476 11477 err_out: 11478 lpfc_els_free_iocb(phba, elsiocb); 11479 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11480 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11481 "0256 Issue FDISC: Cannot send IOCB\n"); 11482 return 1; 11483 } 11484 11485 /** 11486 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo 11487 * @phba: pointer to lpfc hba data structure. 11488 * @cmdiocb: pointer to lpfc command iocb data structure. 11489 * @rspiocb: pointer to lpfc response iocb data structure. 11490 * 11491 * This routine is the completion callback function to the issuing of a LOGO 11492 * ELS command off a vport. It frees the command IOCB and then decrement the 11493 * reference count held on ndlp for this completion function, indicating that 11494 * the reference to the ndlp is no long needed. Note that the 11495 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this 11496 * callback function and an additional explicit ndlp reference decrementation 11497 * will trigger the actual release of the ndlp. 11498 **/ 11499 static void 11500 lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 11501 struct lpfc_iocbq *rspiocb) 11502 { 11503 struct lpfc_vport *vport = cmdiocb->vport; 11504 IOCB_t *irsp; 11505 struct lpfc_nodelist *ndlp; 11506 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 11507 u32 ulp_status, ulp_word4, did, tmo; 11508 11509 ndlp = cmdiocb->ndlp; 11510 11511 ulp_status = get_job_ulpstatus(phba, rspiocb); 11512 ulp_word4 = get_job_word4(phba, rspiocb); 11513 11514 if (phba->sli_rev == LPFC_SLI_REV4) { 11515 did = get_job_els_rsp64_did(phba, cmdiocb); 11516 tmo = get_wqe_tmo(cmdiocb); 11517 } else { 11518 irsp = &rspiocb->iocb; 11519 did = get_job_els_rsp64_did(phba, rspiocb); 11520 tmo = irsp->ulpTimeout; 11521 } 11522 11523 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11524 "LOGO npiv cmpl: status:x%x/x%x did:x%x", 11525 ulp_status, ulp_word4, did); 11526 11527 /* NPIV LOGO completes to NPort <nlp_DID> */ 11528 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 11529 "2928 NPIV LOGO completes to NPort x%x " 11530 "Data: x%x x%x x%x x%x x%x x%x x%x\n", 11531 ndlp->nlp_DID, ulp_status, ulp_word4, 11532 tmo, vport->num_disc_nodes, 11533 kref_read(&ndlp->kref), ndlp->nlp_flag, 11534 ndlp->fc4_xpt_flags); 11535 11536 if (ulp_status == IOSTAT_SUCCESS) { 11537 spin_lock_irq(shost->host_lock); 11538 vport->fc_flag &= ~FC_NDISC_ACTIVE; 11539 vport->fc_flag &= ~FC_FABRIC; 11540 spin_unlock_irq(shost->host_lock); 11541 lpfc_can_disctmo(vport); 11542 } 11543 11544 if (ndlp->save_flags & NLP_WAIT_FOR_LOGO) { 11545 /* Wake up lpfc_vport_delete if waiting...*/ 11546 if (ndlp->logo_waitq) 11547 wake_up(ndlp->logo_waitq); 11548 spin_lock_irq(&ndlp->lock); 11549 ndlp->nlp_flag &= ~(NLP_ISSUE_LOGO | NLP_LOGO_SND); 11550 ndlp->save_flags &= ~NLP_WAIT_FOR_LOGO; 11551 spin_unlock_irq(&ndlp->lock); 11552 } 11553 11554 /* Safe to release resources now. */ 11555 lpfc_els_free_iocb(phba, cmdiocb); 11556 lpfc_nlp_put(ndlp); 11557 } 11558 11559 /** 11560 * lpfc_issue_els_npiv_logo - Issue a logo off a vport 11561 * @vport: pointer to a virtual N_Port data structure. 11562 * @ndlp: pointer to a node-list data structure. 11563 * 11564 * This routine issues a LOGO ELS command to an @ndlp off a @vport. 11565 * 11566 * Note that the ndlp reference count will be incremented by 1 for holding the 11567 * ndlp and the reference to ndlp will be stored into the ndlp field of 11568 * the IOCB for the completion callback function to the LOGO ELS command. 11569 * 11570 * Return codes 11571 * 0 - Successfully issued logo off the @vport 11572 * 1 - Failed to issue logo off the @vport 11573 **/ 11574 int 11575 lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 11576 { 11577 int rc = 0; 11578 struct lpfc_hba *phba = vport->phba; 11579 struct lpfc_iocbq *elsiocb; 11580 uint8_t *pcmd; 11581 uint16_t cmdsize; 11582 11583 cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); 11584 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, 11585 ELS_CMD_LOGO); 11586 if (!elsiocb) 11587 return 1; 11588 11589 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 11590 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; 11591 pcmd += sizeof(uint32_t); 11592 11593 /* Fill in LOGO payload */ 11594 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); 11595 pcmd += sizeof(uint32_t); 11596 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); 11597 11598 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11599 "Issue LOGO npiv did:x%x flg:x%x", 11600 ndlp->nlp_DID, ndlp->nlp_flag, 0); 11601 11602 elsiocb->cmd_cmpl = lpfc_cmpl_els_npiv_logo; 11603 spin_lock_irq(&ndlp->lock); 11604 ndlp->nlp_flag |= NLP_LOGO_SND; 11605 spin_unlock_irq(&ndlp->lock); 11606 elsiocb->ndlp = lpfc_nlp_get(ndlp); 11607 if (!elsiocb->ndlp) { 11608 lpfc_els_free_iocb(phba, elsiocb); 11609 goto err; 11610 } 11611 11612 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 11613 if (rc == IOCB_ERROR) { 11614 lpfc_els_free_iocb(phba, elsiocb); 11615 lpfc_nlp_put(ndlp); 11616 goto err; 11617 } 11618 return 0; 11619 11620 err: 11621 spin_lock_irq(&ndlp->lock); 11622 ndlp->nlp_flag &= ~NLP_LOGO_SND; 11623 spin_unlock_irq(&ndlp->lock); 11624 return 1; 11625 } 11626 11627 /** 11628 * lpfc_fabric_block_timeout - Handler function to the fabric block timer 11629 * @t: timer context used to obtain the lpfc hba. 11630 * 11631 * This routine is invoked by the fabric iocb block timer after 11632 * timeout. It posts the fabric iocb block timeout event by setting the 11633 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes 11634 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for 11635 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the 11636 * posted event WORKER_FABRIC_BLOCK_TMO. 11637 **/ 11638 void 11639 lpfc_fabric_block_timeout(struct timer_list *t) 11640 { 11641 struct lpfc_hba *phba = from_timer(phba, t, fabric_block_timer); 11642 unsigned long iflags; 11643 uint32_t tmo_posted; 11644 11645 spin_lock_irqsave(&phba->pport->work_port_lock, iflags); 11646 tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; 11647 if (!tmo_posted) 11648 phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; 11649 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); 11650 11651 if (!tmo_posted) 11652 lpfc_worker_wake_up(phba); 11653 return; 11654 } 11655 11656 /** 11657 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list 11658 * @phba: pointer to lpfc hba data structure. 11659 * 11660 * This routine issues one fabric iocb from the driver internal list to 11661 * the HBA. It first checks whether it's ready to issue one fabric iocb to 11662 * the HBA (whether there is no outstanding fabric iocb). If so, it shall 11663 * remove one pending fabric iocb from the driver internal list and invokes 11664 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA. 11665 **/ 11666 static void 11667 lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) 11668 { 11669 struct lpfc_iocbq *iocb; 11670 unsigned long iflags; 11671 int ret; 11672 11673 repeat: 11674 iocb = NULL; 11675 spin_lock_irqsave(&phba->hbalock, iflags); 11676 /* Post any pending iocb to the SLI layer */ 11677 if (atomic_read(&phba->fabric_iocb_count) == 0) { 11678 list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), 11679 list); 11680 if (iocb) 11681 /* Increment fabric iocb count to hold the position */ 11682 atomic_inc(&phba->fabric_iocb_count); 11683 } 11684 spin_unlock_irqrestore(&phba->hbalock, iflags); 11685 if (iocb) { 11686 iocb->fabric_cmd_cmpl = iocb->cmd_cmpl; 11687 iocb->cmd_cmpl = lpfc_cmpl_fabric_iocb; 11688 iocb->cmd_flag |= LPFC_IO_FABRIC; 11689 11690 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, 11691 "Fabric sched1: ste:x%x", 11692 iocb->vport->port_state, 0, 0); 11693 11694 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); 11695 11696 if (ret == IOCB_ERROR) { 11697 iocb->cmd_cmpl = iocb->fabric_cmd_cmpl; 11698 iocb->fabric_cmd_cmpl = NULL; 11699 iocb->cmd_flag &= ~LPFC_IO_FABRIC; 11700 set_job_ulpstatus(iocb, IOSTAT_LOCAL_REJECT); 11701 iocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED; 11702 iocb->cmd_cmpl(phba, iocb, iocb); 11703 11704 atomic_dec(&phba->fabric_iocb_count); 11705 goto repeat; 11706 } 11707 } 11708 } 11709 11710 /** 11711 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command 11712 * @phba: pointer to lpfc hba data structure. 11713 * 11714 * This routine unblocks the issuing fabric iocb command. The function 11715 * will clear the fabric iocb block bit and then invoke the routine 11716 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb 11717 * from the driver internal fabric iocb list. 11718 **/ 11719 void 11720 lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) 11721 { 11722 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 11723 11724 lpfc_resume_fabric_iocbs(phba); 11725 return; 11726 } 11727 11728 /** 11729 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command 11730 * @phba: pointer to lpfc hba data structure. 11731 * 11732 * This routine blocks the issuing fabric iocb for a specified amount of 11733 * time (currently 100 ms). This is done by set the fabric iocb block bit 11734 * and set up a timeout timer for 100ms. When the block bit is set, no more 11735 * fabric iocb will be issued out of the HBA. 11736 **/ 11737 static void 11738 lpfc_block_fabric_iocbs(struct lpfc_hba *phba) 11739 { 11740 int blocked; 11741 11742 blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 11743 /* Start a timer to unblock fabric iocbs after 100ms */ 11744 if (!blocked) 11745 mod_timer(&phba->fabric_block_timer, 11746 jiffies + msecs_to_jiffies(100)); 11747 11748 return; 11749 } 11750 11751 /** 11752 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb 11753 * @phba: pointer to lpfc hba data structure. 11754 * @cmdiocb: pointer to lpfc command iocb data structure. 11755 * @rspiocb: pointer to lpfc response iocb data structure. 11756 * 11757 * This routine is the callback function that is put to the fabric iocb's 11758 * callback function pointer (iocb->cmd_cmpl). The original iocb's callback 11759 * function pointer has been stored in iocb->fabric_cmd_cmpl. This callback 11760 * function first restores and invokes the original iocb's callback function 11761 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next 11762 * fabric bound iocb from the driver internal fabric iocb list onto the wire. 11763 **/ 11764 static void 11765 lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 11766 struct lpfc_iocbq *rspiocb) 11767 { 11768 struct ls_rjt stat; 11769 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 11770 u32 ulp_word4 = get_job_word4(phba, rspiocb); 11771 11772 WARN_ON((cmdiocb->cmd_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC); 11773 11774 switch (ulp_status) { 11775 case IOSTAT_NPORT_RJT: 11776 case IOSTAT_FABRIC_RJT: 11777 if (ulp_word4 & RJT_UNAVAIL_TEMP) 11778 lpfc_block_fabric_iocbs(phba); 11779 break; 11780 11781 case IOSTAT_NPORT_BSY: 11782 case IOSTAT_FABRIC_BSY: 11783 lpfc_block_fabric_iocbs(phba); 11784 break; 11785 11786 case IOSTAT_LS_RJT: 11787 stat.un.ls_rjt_error_be = 11788 cpu_to_be32(ulp_word4); 11789 if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || 11790 (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) 11791 lpfc_block_fabric_iocbs(phba); 11792 break; 11793 } 11794 11795 BUG_ON(atomic_read(&phba->fabric_iocb_count) == 0); 11796 11797 cmdiocb->cmd_cmpl = cmdiocb->fabric_cmd_cmpl; 11798 cmdiocb->fabric_cmd_cmpl = NULL; 11799 cmdiocb->cmd_flag &= ~LPFC_IO_FABRIC; 11800 cmdiocb->cmd_cmpl(phba, cmdiocb, rspiocb); 11801 11802 atomic_dec(&phba->fabric_iocb_count); 11803 if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { 11804 /* Post any pending iocbs to HBA */ 11805 lpfc_resume_fabric_iocbs(phba); 11806 } 11807 } 11808 11809 /** 11810 * lpfc_issue_fabric_iocb - Issue a fabric iocb command 11811 * @phba: pointer to lpfc hba data structure. 11812 * @iocb: pointer to lpfc command iocb data structure. 11813 * 11814 * This routine is used as the top-level API for issuing a fabric iocb command 11815 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver 11816 * function makes sure that only one fabric bound iocb will be outstanding at 11817 * any given time. As such, this function will first check to see whether there 11818 * is already an outstanding fabric iocb on the wire. If so, it will put the 11819 * newly issued iocb onto the driver internal fabric iocb list, waiting to be 11820 * issued later. Otherwise, it will issue the iocb on the wire and update the 11821 * fabric iocb count it indicate that there is one fabric iocb on the wire. 11822 * 11823 * Note, this implementation has a potential sending out fabric IOCBs out of 11824 * order. The problem is caused by the construction of the "ready" boolen does 11825 * not include the condition that the internal fabric IOCB list is empty. As 11826 * such, it is possible a fabric IOCB issued by this routine might be "jump" 11827 * ahead of the fabric IOCBs in the internal list. 11828 * 11829 * Return code 11830 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully 11831 * IOCB_ERROR - failed to issue fabric iocb 11832 **/ 11833 static int 11834 lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) 11835 { 11836 unsigned long iflags; 11837 int ready; 11838 int ret; 11839 11840 BUG_ON(atomic_read(&phba->fabric_iocb_count) > 1); 11841 11842 spin_lock_irqsave(&phba->hbalock, iflags); 11843 ready = atomic_read(&phba->fabric_iocb_count) == 0 && 11844 !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 11845 11846 if (ready) 11847 /* Increment fabric iocb count to hold the position */ 11848 atomic_inc(&phba->fabric_iocb_count); 11849 spin_unlock_irqrestore(&phba->hbalock, iflags); 11850 if (ready) { 11851 iocb->fabric_cmd_cmpl = iocb->cmd_cmpl; 11852 iocb->cmd_cmpl = lpfc_cmpl_fabric_iocb; 11853 iocb->cmd_flag |= LPFC_IO_FABRIC; 11854 11855 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, 11856 "Fabric sched2: ste:x%x", 11857 iocb->vport->port_state, 0, 0); 11858 11859 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); 11860 11861 if (ret == IOCB_ERROR) { 11862 iocb->cmd_cmpl = iocb->fabric_cmd_cmpl; 11863 iocb->fabric_cmd_cmpl = NULL; 11864 iocb->cmd_flag &= ~LPFC_IO_FABRIC; 11865 atomic_dec(&phba->fabric_iocb_count); 11866 } 11867 } else { 11868 spin_lock_irqsave(&phba->hbalock, iflags); 11869 list_add_tail(&iocb->list, &phba->fabric_iocb_list); 11870 spin_unlock_irqrestore(&phba->hbalock, iflags); 11871 ret = IOCB_SUCCESS; 11872 } 11873 return ret; 11874 } 11875 11876 /** 11877 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list 11878 * @vport: pointer to a virtual N_Port data structure. 11879 * 11880 * This routine aborts all the IOCBs associated with a @vport from the 11881 * driver internal fabric IOCB list. The list contains fabric IOCBs to be 11882 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB 11883 * list, removes each IOCB associated with the @vport off the list, set the 11884 * status field to IOSTAT_LOCAL_REJECT, and invokes the callback function 11885 * associated with the IOCB. 11886 **/ 11887 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) 11888 { 11889 LIST_HEAD(completions); 11890 struct lpfc_hba *phba = vport->phba; 11891 struct lpfc_iocbq *tmp_iocb, *piocb; 11892 11893 spin_lock_irq(&phba->hbalock); 11894 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, 11895 list) { 11896 11897 if (piocb->vport != vport) 11898 continue; 11899 11900 list_move_tail(&piocb->list, &completions); 11901 } 11902 spin_unlock_irq(&phba->hbalock); 11903 11904 /* Cancel all the IOCBs from the completions list */ 11905 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 11906 IOERR_SLI_ABORTED); 11907 } 11908 11909 /** 11910 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list 11911 * @ndlp: pointer to a node-list data structure. 11912 * 11913 * This routine aborts all the IOCBs associated with an @ndlp from the 11914 * driver internal fabric IOCB list. The list contains fabric IOCBs to be 11915 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB 11916 * list, removes each IOCB associated with the @ndlp off the list, set the 11917 * status field to IOSTAT_LOCAL_REJECT, and invokes the callback function 11918 * associated with the IOCB. 11919 **/ 11920 void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) 11921 { 11922 LIST_HEAD(completions); 11923 struct lpfc_hba *phba = ndlp->phba; 11924 struct lpfc_iocbq *tmp_iocb, *piocb; 11925 struct lpfc_sli_ring *pring; 11926 11927 pring = lpfc_phba_elsring(phba); 11928 11929 if (unlikely(!pring)) 11930 return; 11931 11932 spin_lock_irq(&phba->hbalock); 11933 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, 11934 list) { 11935 if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { 11936 11937 list_move_tail(&piocb->list, &completions); 11938 } 11939 } 11940 spin_unlock_irq(&phba->hbalock); 11941 11942 /* Cancel all the IOCBs from the completions list */ 11943 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 11944 IOERR_SLI_ABORTED); 11945 } 11946 11947 /** 11948 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list 11949 * @phba: pointer to lpfc hba data structure. 11950 * 11951 * This routine aborts all the IOCBs currently on the driver internal 11952 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS 11953 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB 11954 * list, removes IOCBs off the list, set the status field to 11955 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with 11956 * the IOCB. 11957 **/ 11958 void lpfc_fabric_abort_hba(struct lpfc_hba *phba) 11959 { 11960 LIST_HEAD(completions); 11961 11962 spin_lock_irq(&phba->hbalock); 11963 list_splice_init(&phba->fabric_iocb_list, &completions); 11964 spin_unlock_irq(&phba->hbalock); 11965 11966 /* Cancel all the IOCBs from the completions list */ 11967 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 11968 IOERR_SLI_ABORTED); 11969 } 11970 11971 /** 11972 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport 11973 * @vport: pointer to lpfc vport data structure. 11974 * 11975 * This routine is invoked by the vport cleanup for deletions and the cleanup 11976 * for an ndlp on removal. 11977 **/ 11978 void 11979 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport) 11980 { 11981 struct lpfc_hba *phba = vport->phba; 11982 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 11983 struct lpfc_nodelist *ndlp = NULL; 11984 unsigned long iflag = 0; 11985 11986 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock, iflag); 11987 list_for_each_entry_safe(sglq_entry, sglq_next, 11988 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { 11989 if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport) { 11990 lpfc_nlp_put(sglq_entry->ndlp); 11991 ndlp = sglq_entry->ndlp; 11992 sglq_entry->ndlp = NULL; 11993 11994 /* If the xri on the abts_els_sgl list is for the Fport 11995 * node and the vport is unloading, the xri aborted wcqe 11996 * likely isn't coming back. Just release the sgl. 11997 */ 11998 if ((vport->load_flag & FC_UNLOADING) && 11999 ndlp->nlp_DID == Fabric_DID) { 12000 list_del(&sglq_entry->list); 12001 sglq_entry->state = SGL_FREED; 12002 list_add_tail(&sglq_entry->list, 12003 &phba->sli4_hba.lpfc_els_sgl_list); 12004 } 12005 } 12006 } 12007 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, iflag); 12008 return; 12009 } 12010 12011 /** 12012 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort 12013 * @phba: pointer to lpfc hba data structure. 12014 * @axri: pointer to the els xri abort wcqe structure. 12015 * 12016 * This routine is invoked by the worker thread to process a SLI4 slow-path 12017 * ELS aborted xri. 12018 **/ 12019 void 12020 lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba, 12021 struct sli4_wcqe_xri_aborted *axri) 12022 { 12023 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); 12024 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); 12025 uint16_t lxri = 0; 12026 12027 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 12028 unsigned long iflag = 0; 12029 struct lpfc_nodelist *ndlp; 12030 struct lpfc_sli_ring *pring; 12031 12032 pring = lpfc_phba_elsring(phba); 12033 12034 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock, iflag); 12035 list_for_each_entry_safe(sglq_entry, sglq_next, 12036 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { 12037 if (sglq_entry->sli4_xritag == xri) { 12038 list_del(&sglq_entry->list); 12039 ndlp = sglq_entry->ndlp; 12040 sglq_entry->ndlp = NULL; 12041 list_add_tail(&sglq_entry->list, 12042 &phba->sli4_hba.lpfc_els_sgl_list); 12043 sglq_entry->state = SGL_FREED; 12044 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, 12045 iflag); 12046 12047 if (ndlp) { 12048 lpfc_set_rrq_active(phba, ndlp, 12049 sglq_entry->sli4_lxritag, 12050 rxid, 1); 12051 lpfc_nlp_put(ndlp); 12052 } 12053 12054 /* Check if TXQ queue needs to be serviced */ 12055 if (pring && !list_empty(&pring->txq)) 12056 lpfc_worker_wake_up(phba); 12057 return; 12058 } 12059 } 12060 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, iflag); 12061 lxri = lpfc_sli4_xri_inrange(phba, xri); 12062 if (lxri == NO_XRI) 12063 return; 12064 12065 spin_lock_irqsave(&phba->hbalock, iflag); 12066 sglq_entry = __lpfc_get_active_sglq(phba, lxri); 12067 if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) { 12068 spin_unlock_irqrestore(&phba->hbalock, iflag); 12069 return; 12070 } 12071 sglq_entry->state = SGL_XRI_ABORTED; 12072 spin_unlock_irqrestore(&phba->hbalock, iflag); 12073 return; 12074 } 12075 12076 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req. 12077 * @vport: pointer to virtual port object. 12078 * @ndlp: nodelist pointer for the impacted node. 12079 * 12080 * The driver calls this routine in response to an SLI4 XRI ABORT CQE 12081 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event, 12082 * the driver is required to send a LOGO to the remote node before it 12083 * attempts to recover its login to the remote node. 12084 */ 12085 void 12086 lpfc_sli_abts_recover_port(struct lpfc_vport *vport, 12087 struct lpfc_nodelist *ndlp) 12088 { 12089 struct Scsi_Host *shost; 12090 struct lpfc_hba *phba; 12091 unsigned long flags = 0; 12092 12093 shost = lpfc_shost_from_vport(vport); 12094 phba = vport->phba; 12095 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) { 12096 lpfc_printf_log(phba, KERN_INFO, 12097 LOG_SLI, "3093 No rport recovery needed. " 12098 "rport in state 0x%x\n", ndlp->nlp_state); 12099 return; 12100 } 12101 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 12102 "3094 Start rport recovery on shost id 0x%x " 12103 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x " 12104 "flags 0x%x\n", 12105 shost->host_no, ndlp->nlp_DID, 12106 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state, 12107 ndlp->nlp_flag); 12108 /* 12109 * The rport is not responding. Remove the FCP-2 flag to prevent 12110 * an ADISC in the follow-up recovery code. 12111 */ 12112 spin_lock_irqsave(&ndlp->lock, flags); 12113 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 12114 ndlp->nlp_flag |= NLP_ISSUE_LOGO; 12115 spin_unlock_irqrestore(&ndlp->lock, flags); 12116 lpfc_unreg_rpi(vport, ndlp); 12117 } 12118 12119 static void lpfc_init_cs_ctl_bitmap(struct lpfc_vport *vport) 12120 { 12121 bitmap_zero(vport->vmid_priority_range, LPFC_VMID_MAX_PRIORITY_RANGE); 12122 } 12123 12124 static void 12125 lpfc_vmid_set_cs_ctl_range(struct lpfc_vport *vport, u32 min, u32 max) 12126 { 12127 u32 i; 12128 12129 if ((min > max) || (max > LPFC_VMID_MAX_PRIORITY_RANGE)) 12130 return; 12131 12132 for (i = min; i <= max; i++) 12133 set_bit(i, vport->vmid_priority_range); 12134 } 12135 12136 static void lpfc_vmid_put_cs_ctl(struct lpfc_vport *vport, u32 ctcl_vmid) 12137 { 12138 set_bit(ctcl_vmid, vport->vmid_priority_range); 12139 } 12140 12141 u32 lpfc_vmid_get_cs_ctl(struct lpfc_vport *vport) 12142 { 12143 u32 i; 12144 12145 i = find_first_bit(vport->vmid_priority_range, 12146 LPFC_VMID_MAX_PRIORITY_RANGE); 12147 12148 if (i == LPFC_VMID_MAX_PRIORITY_RANGE) 12149 return 0; 12150 12151 clear_bit(i, vport->vmid_priority_range); 12152 return i; 12153 } 12154 12155 #define MAX_PRIORITY_DESC 255 12156 12157 static void 12158 lpfc_cmpl_els_qfpa(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 12159 struct lpfc_iocbq *rspiocb) 12160 { 12161 struct lpfc_vport *vport = cmdiocb->vport; 12162 struct priority_range_desc *desc; 12163 struct lpfc_dmabuf *prsp = NULL; 12164 struct lpfc_vmid_priority_range *vmid_range = NULL; 12165 u32 *data; 12166 struct lpfc_dmabuf *dmabuf = cmdiocb->cmd_dmabuf; 12167 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 12168 u32 ulp_word4 = get_job_word4(phba, rspiocb); 12169 u8 *pcmd, max_desc; 12170 u32 len, i; 12171 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 12172 12173 prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list); 12174 if (!prsp) 12175 goto out; 12176 12177 pcmd = prsp->virt; 12178 data = (u32 *)pcmd; 12179 if (data[0] == ELS_CMD_LS_RJT) { 12180 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 12181 "3277 QFPA LS_RJT x%x x%x\n", 12182 data[0], data[1]); 12183 goto out; 12184 } 12185 if (ulp_status) { 12186 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 12187 "6529 QFPA failed with status x%x x%x\n", 12188 ulp_status, ulp_word4); 12189 goto out; 12190 } 12191 12192 if (!vport->qfpa_res) { 12193 max_desc = FCELSSIZE / sizeof(*vport->qfpa_res); 12194 vport->qfpa_res = kcalloc(max_desc, sizeof(*vport->qfpa_res), 12195 GFP_KERNEL); 12196 if (!vport->qfpa_res) 12197 goto out; 12198 } 12199 12200 len = *((u32 *)(pcmd + 4)); 12201 len = be32_to_cpu(len); 12202 memcpy(vport->qfpa_res, pcmd, len + 8); 12203 len = len / LPFC_PRIORITY_RANGE_DESC_SIZE; 12204 12205 desc = (struct priority_range_desc *)(pcmd + 8); 12206 vmid_range = vport->vmid_priority.vmid_range; 12207 if (!vmid_range) { 12208 vmid_range = kcalloc(MAX_PRIORITY_DESC, sizeof(*vmid_range), 12209 GFP_KERNEL); 12210 if (!vmid_range) { 12211 kfree(vport->qfpa_res); 12212 goto out; 12213 } 12214 vport->vmid_priority.vmid_range = vmid_range; 12215 } 12216 vport->vmid_priority.num_descriptors = len; 12217 12218 for (i = 0; i < len; i++, vmid_range++, desc++) { 12219 lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS, 12220 "6539 vmid values low=%d, high=%d, qos=%d, " 12221 "local ve id=%d\n", desc->lo_range, 12222 desc->hi_range, desc->qos_priority, 12223 desc->local_ve_id); 12224 12225 vmid_range->low = desc->lo_range << 1; 12226 if (desc->local_ve_id == QFPA_ODD_ONLY) 12227 vmid_range->low++; 12228 if (desc->qos_priority) 12229 vport->vmid_flag |= LPFC_VMID_QOS_ENABLED; 12230 vmid_range->qos = desc->qos_priority; 12231 12232 vmid_range->high = desc->hi_range << 1; 12233 if ((desc->local_ve_id == QFPA_ODD_ONLY) || 12234 (desc->local_ve_id == QFPA_EVEN_ODD)) 12235 vmid_range->high++; 12236 } 12237 lpfc_init_cs_ctl_bitmap(vport); 12238 for (i = 0; i < vport->vmid_priority.num_descriptors; i++) { 12239 lpfc_vmid_set_cs_ctl_range(vport, 12240 vport->vmid_priority.vmid_range[i].low, 12241 vport->vmid_priority.vmid_range[i].high); 12242 } 12243 12244 vport->vmid_flag |= LPFC_VMID_QFPA_CMPL; 12245 out: 12246 lpfc_els_free_iocb(phba, cmdiocb); 12247 lpfc_nlp_put(ndlp); 12248 } 12249 12250 int lpfc_issue_els_qfpa(struct lpfc_vport *vport) 12251 { 12252 struct lpfc_hba *phba = vport->phba; 12253 struct lpfc_nodelist *ndlp; 12254 struct lpfc_iocbq *elsiocb; 12255 u8 *pcmd; 12256 int ret; 12257 12258 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 12259 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 12260 return -ENXIO; 12261 12262 elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_QFPA_SIZE, 2, ndlp, 12263 ndlp->nlp_DID, ELS_CMD_QFPA); 12264 if (!elsiocb) 12265 return -ENOMEM; 12266 12267 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 12268 12269 *((u32 *)(pcmd)) = ELS_CMD_QFPA; 12270 pcmd += 4; 12271 12272 elsiocb->cmd_cmpl = lpfc_cmpl_els_qfpa; 12273 12274 elsiocb->ndlp = lpfc_nlp_get(ndlp); 12275 if (!elsiocb->ndlp) { 12276 lpfc_els_free_iocb(vport->phba, elsiocb); 12277 return -ENXIO; 12278 } 12279 12280 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 2); 12281 if (ret != IOCB_SUCCESS) { 12282 lpfc_els_free_iocb(phba, elsiocb); 12283 lpfc_nlp_put(ndlp); 12284 return -EIO; 12285 } 12286 vport->vmid_flag &= ~LPFC_VMID_QOS_ENABLED; 12287 return 0; 12288 } 12289 12290 int 12291 lpfc_vmid_uvem(struct lpfc_vport *vport, 12292 struct lpfc_vmid *vmid, bool instantiated) 12293 { 12294 struct lpfc_vem_id_desc *vem_id_desc; 12295 struct lpfc_nodelist *ndlp; 12296 struct lpfc_iocbq *elsiocb; 12297 struct instantiated_ve_desc *inst_desc; 12298 struct lpfc_vmid_context *vmid_context; 12299 u8 *pcmd; 12300 u32 *len; 12301 int ret = 0; 12302 12303 ndlp = lpfc_findnode_did(vport, Fabric_DID); 12304 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 12305 return -ENXIO; 12306 12307 vmid_context = kmalloc(sizeof(*vmid_context), GFP_KERNEL); 12308 if (!vmid_context) 12309 return -ENOMEM; 12310 elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_UVEM_SIZE, 2, 12311 ndlp, Fabric_DID, ELS_CMD_UVEM); 12312 if (!elsiocb) 12313 goto out; 12314 12315 lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS, 12316 "3427 Host vmid %s %d\n", 12317 vmid->host_vmid, instantiated); 12318 vmid_context->vmp = vmid; 12319 vmid_context->nlp = ndlp; 12320 vmid_context->instantiated = instantiated; 12321 elsiocb->vmid_tag.vmid_context = vmid_context; 12322 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 12323 12324 if (uuid_is_null((uuid_t *)vport->lpfc_vmid_host_uuid)) 12325 memcpy(vport->lpfc_vmid_host_uuid, vmid->host_vmid, 12326 LPFC_COMPRESS_VMID_SIZE); 12327 12328 *((u32 *)(pcmd)) = ELS_CMD_UVEM; 12329 len = (u32 *)(pcmd + 4); 12330 *len = cpu_to_be32(LPFC_UVEM_SIZE - 8); 12331 12332 vem_id_desc = (struct lpfc_vem_id_desc *)(pcmd + 8); 12333 vem_id_desc->tag = be32_to_cpu(VEM_ID_DESC_TAG); 12334 vem_id_desc->length = be32_to_cpu(LPFC_UVEM_VEM_ID_DESC_SIZE); 12335 memcpy(vem_id_desc->vem_id, vport->lpfc_vmid_host_uuid, 12336 LPFC_COMPRESS_VMID_SIZE); 12337 12338 inst_desc = (struct instantiated_ve_desc *)(pcmd + 32); 12339 inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG); 12340 inst_desc->length = be32_to_cpu(LPFC_UVEM_VE_MAP_DESC_SIZE); 12341 memcpy(inst_desc->global_vem_id, vmid->host_vmid, 12342 LPFC_COMPRESS_VMID_SIZE); 12343 12344 bf_set(lpfc_instantiated_nport_id, inst_desc, vport->fc_myDID); 12345 bf_set(lpfc_instantiated_local_id, inst_desc, 12346 vmid->un.cs_ctl_vmid); 12347 if (instantiated) { 12348 inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG); 12349 } else { 12350 inst_desc->tag = be32_to_cpu(DEINSTANTIATED_VE_DESC_TAG); 12351 lpfc_vmid_put_cs_ctl(vport, vmid->un.cs_ctl_vmid); 12352 } 12353 inst_desc->word6 = cpu_to_be32(inst_desc->word6); 12354 12355 elsiocb->cmd_cmpl = lpfc_cmpl_els_uvem; 12356 12357 elsiocb->ndlp = lpfc_nlp_get(ndlp); 12358 if (!elsiocb->ndlp) { 12359 lpfc_els_free_iocb(vport->phba, elsiocb); 12360 goto out; 12361 } 12362 12363 ret = lpfc_sli_issue_iocb(vport->phba, LPFC_ELS_RING, elsiocb, 0); 12364 if (ret != IOCB_SUCCESS) { 12365 lpfc_els_free_iocb(vport->phba, elsiocb); 12366 lpfc_nlp_put(ndlp); 12367 goto out; 12368 } 12369 12370 return 0; 12371 out: 12372 kfree(vmid_context); 12373 return -EIO; 12374 } 12375 12376 static void 12377 lpfc_cmpl_els_uvem(struct lpfc_hba *phba, struct lpfc_iocbq *icmdiocb, 12378 struct lpfc_iocbq *rspiocb) 12379 { 12380 struct lpfc_vport *vport = icmdiocb->vport; 12381 struct lpfc_dmabuf *prsp = NULL; 12382 struct lpfc_vmid_context *vmid_context = 12383 icmdiocb->vmid_tag.vmid_context; 12384 struct lpfc_nodelist *ndlp = icmdiocb->ndlp; 12385 u8 *pcmd; 12386 u32 *data; 12387 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 12388 u32 ulp_word4 = get_job_word4(phba, rspiocb); 12389 struct lpfc_dmabuf *dmabuf = icmdiocb->cmd_dmabuf; 12390 struct lpfc_vmid *vmid; 12391 12392 vmid = vmid_context->vmp; 12393 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 12394 ndlp = NULL; 12395 12396 prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list); 12397 if (!prsp) 12398 goto out; 12399 pcmd = prsp->virt; 12400 data = (u32 *)pcmd; 12401 if (data[0] == ELS_CMD_LS_RJT) { 12402 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 12403 "4532 UVEM LS_RJT %x %x\n", data[0], data[1]); 12404 goto out; 12405 } 12406 if (ulp_status) { 12407 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 12408 "4533 UVEM error status %x: %x\n", 12409 ulp_status, ulp_word4); 12410 goto out; 12411 } 12412 spin_lock(&phba->hbalock); 12413 /* Set IN USE flag */ 12414 vport->vmid_flag |= LPFC_VMID_IN_USE; 12415 phba->pport->vmid_flag |= LPFC_VMID_IN_USE; 12416 spin_unlock(&phba->hbalock); 12417 12418 if (vmid_context->instantiated) { 12419 write_lock(&vport->vmid_lock); 12420 vmid->flag |= LPFC_VMID_REGISTERED; 12421 vmid->flag &= ~LPFC_VMID_REQ_REGISTER; 12422 write_unlock(&vport->vmid_lock); 12423 } 12424 12425 out: 12426 kfree(vmid_context); 12427 lpfc_els_free_iocb(phba, icmdiocb); 12428 lpfc_nlp_put(ndlp); 12429 } 12430