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 lpfc_drop_node(vport, ndlp); 5456 } else if (ndlp->nlp_state != NLP_STE_PLOGI_ISSUE && 5457 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE && 5458 ndlp->nlp_state != NLP_STE_PRLI_ISSUE) { 5459 /* Drop ndlp if there is no planned or outstanding 5460 * issued PRLI. 5461 * 5462 * In cases when the ndlp is acting as both an initiator 5463 * and target function, let our issued PRLI determine 5464 * the final ndlp kref drop. 5465 */ 5466 lpfc_drop_node(vport, ndlp); 5467 } 5468 } 5469 5470 /* Release the originating I/O reference. */ 5471 lpfc_els_free_iocb(phba, cmdiocb); 5472 lpfc_nlp_put(ndlp); 5473 return; 5474 } 5475 5476 /** 5477 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command 5478 * @vport: pointer to a host virtual N_Port data structure. 5479 * @flag: the els command code to be accepted. 5480 * @oldiocb: pointer to the original lpfc command iocb data structure. 5481 * @ndlp: pointer to a node-list data structure. 5482 * @mbox: pointer to the driver internal queue element for mailbox command. 5483 * 5484 * This routine prepares and issues an Accept (ACC) response IOCB 5485 * command. It uses the @flag to properly set up the IOCB field for the 5486 * specific ACC response command to be issued and invokes the 5487 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a 5488 * @mbox pointer is passed in, it will be put into the context_un.mbox 5489 * field of the IOCB for the completion callback function to issue the 5490 * mailbox command to the HBA later when callback is invoked. 5491 * 5492 * Note that the ndlp reference count will be incremented by 1 for holding the 5493 * ndlp and the reference to ndlp will be stored into the ndlp field of 5494 * the IOCB for the completion callback function to the corresponding 5495 * response ELS IOCB command. 5496 * 5497 * Return code 5498 * 0 - Successfully issued acc response 5499 * 1 - Failed to issue acc response 5500 **/ 5501 int 5502 lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, 5503 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, 5504 LPFC_MBOXQ_t *mbox) 5505 { 5506 struct lpfc_hba *phba = vport->phba; 5507 IOCB_t *icmd; 5508 IOCB_t *oldcmd; 5509 union lpfc_wqe128 *wqe; 5510 union lpfc_wqe128 *oldwqe = &oldiocb->wqe; 5511 struct lpfc_iocbq *elsiocb; 5512 uint8_t *pcmd; 5513 struct serv_parm *sp; 5514 uint16_t cmdsize; 5515 int rc; 5516 ELS_PKT *els_pkt_ptr; 5517 struct fc_els_rdf_resp *rdf_resp; 5518 5519 switch (flag) { 5520 case ELS_CMD_ACC: 5521 cmdsize = sizeof(uint32_t); 5522 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5523 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5524 if (!elsiocb) { 5525 spin_lock_irq(&ndlp->lock); 5526 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 5527 spin_unlock_irq(&ndlp->lock); 5528 return 1; 5529 } 5530 5531 if (phba->sli_rev == LPFC_SLI_REV4) { 5532 wqe = &elsiocb->wqe; 5533 /* XRI / rx_id */ 5534 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5535 bf_get(wqe_ctxt_tag, 5536 &oldwqe->xmit_els_rsp.wqe_com)); 5537 5538 /* oxid */ 5539 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5540 bf_get(wqe_rcvoxid, 5541 &oldwqe->xmit_els_rsp.wqe_com)); 5542 } else { 5543 icmd = &elsiocb->iocb; 5544 oldcmd = &oldiocb->iocb; 5545 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5546 icmd->unsli3.rcvsli3.ox_id = 5547 oldcmd->unsli3.rcvsli3.ox_id; 5548 } 5549 5550 pcmd = elsiocb->cmd_dmabuf->virt; 5551 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 5552 pcmd += sizeof(uint32_t); 5553 5554 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5555 "Issue ACC: did:x%x flg:x%x", 5556 ndlp->nlp_DID, ndlp->nlp_flag, 0); 5557 break; 5558 case ELS_CMD_FLOGI: 5559 case ELS_CMD_PLOGI: 5560 cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); 5561 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5562 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5563 if (!elsiocb) 5564 return 1; 5565 5566 if (phba->sli_rev == LPFC_SLI_REV4) { 5567 wqe = &elsiocb->wqe; 5568 /* XRI / rx_id */ 5569 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5570 bf_get(wqe_ctxt_tag, 5571 &oldwqe->xmit_els_rsp.wqe_com)); 5572 5573 /* oxid */ 5574 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5575 bf_get(wqe_rcvoxid, 5576 &oldwqe->xmit_els_rsp.wqe_com)); 5577 } else { 5578 icmd = &elsiocb->iocb; 5579 oldcmd = &oldiocb->iocb; 5580 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5581 icmd->unsli3.rcvsli3.ox_id = 5582 oldcmd->unsli3.rcvsli3.ox_id; 5583 } 5584 5585 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 5586 5587 if (mbox) 5588 elsiocb->context_un.mbox = mbox; 5589 5590 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 5591 pcmd += sizeof(uint32_t); 5592 sp = (struct serv_parm *)pcmd; 5593 5594 if (flag == ELS_CMD_FLOGI) { 5595 /* Copy the received service parameters back */ 5596 memcpy(sp, &phba->fc_fabparam, 5597 sizeof(struct serv_parm)); 5598 5599 /* Clear the F_Port bit */ 5600 sp->cmn.fPort = 0; 5601 5602 /* Mark all class service parameters as invalid */ 5603 sp->cls1.classValid = 0; 5604 sp->cls2.classValid = 0; 5605 sp->cls3.classValid = 0; 5606 sp->cls4.classValid = 0; 5607 5608 /* Copy our worldwide names */ 5609 memcpy(&sp->portName, &vport->fc_sparam.portName, 5610 sizeof(struct lpfc_name)); 5611 memcpy(&sp->nodeName, &vport->fc_sparam.nodeName, 5612 sizeof(struct lpfc_name)); 5613 } else { 5614 memcpy(pcmd, &vport->fc_sparam, 5615 sizeof(struct serv_parm)); 5616 5617 sp->cmn.valid_vendor_ver_level = 0; 5618 memset(sp->un.vendorVersion, 0, 5619 sizeof(sp->un.vendorVersion)); 5620 sp->cmn.bbRcvSizeMsb &= 0xF; 5621 5622 /* If our firmware supports this feature, convey that 5623 * info to the target using the vendor specific field. 5624 */ 5625 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) { 5626 sp->cmn.valid_vendor_ver_level = 1; 5627 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID); 5628 sp->un.vv.flags = 5629 cpu_to_be32(LPFC_VV_SUPPRESS_RSP); 5630 } 5631 } 5632 5633 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5634 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%x", 5635 ndlp->nlp_DID, ndlp->nlp_flag, 0); 5636 break; 5637 case ELS_CMD_PRLO: 5638 cmdsize = sizeof(uint32_t) + sizeof(PRLO); 5639 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5640 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); 5641 if (!elsiocb) 5642 return 1; 5643 5644 if (phba->sli_rev == LPFC_SLI_REV4) { 5645 wqe = &elsiocb->wqe; 5646 /* XRI / rx_id */ 5647 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5648 bf_get(wqe_ctxt_tag, 5649 &oldwqe->xmit_els_rsp.wqe_com)); 5650 5651 /* oxid */ 5652 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5653 bf_get(wqe_rcvoxid, 5654 &oldwqe->xmit_els_rsp.wqe_com)); 5655 } else { 5656 icmd = &elsiocb->iocb; 5657 oldcmd = &oldiocb->iocb; 5658 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5659 icmd->unsli3.rcvsli3.ox_id = 5660 oldcmd->unsli3.rcvsli3.ox_id; 5661 } 5662 5663 pcmd = (u8 *) elsiocb->cmd_dmabuf->virt; 5664 5665 memcpy(pcmd, oldiocb->cmd_dmabuf->virt, 5666 sizeof(uint32_t) + sizeof(PRLO)); 5667 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; 5668 els_pkt_ptr = (ELS_PKT *) pcmd; 5669 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; 5670 5671 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5672 "Issue ACC PRLO: did:x%x flg:x%x", 5673 ndlp->nlp_DID, ndlp->nlp_flag, 0); 5674 break; 5675 case ELS_CMD_RDF: 5676 cmdsize = sizeof(*rdf_resp); 5677 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5678 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5679 if (!elsiocb) 5680 return 1; 5681 5682 if (phba->sli_rev == LPFC_SLI_REV4) { 5683 wqe = &elsiocb->wqe; 5684 /* XRI / rx_id */ 5685 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5686 bf_get(wqe_ctxt_tag, 5687 &oldwqe->xmit_els_rsp.wqe_com)); 5688 5689 /* oxid */ 5690 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5691 bf_get(wqe_rcvoxid, 5692 &oldwqe->xmit_els_rsp.wqe_com)); 5693 } else { 5694 icmd = &elsiocb->iocb; 5695 oldcmd = &oldiocb->iocb; 5696 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5697 icmd->unsli3.rcvsli3.ox_id = 5698 oldcmd->unsli3.rcvsli3.ox_id; 5699 } 5700 5701 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 5702 rdf_resp = (struct fc_els_rdf_resp *)pcmd; 5703 memset(rdf_resp, 0, sizeof(*rdf_resp)); 5704 rdf_resp->acc_hdr.la_cmd = ELS_LS_ACC; 5705 5706 /* FC-LS-5 specifies desc_list_len shall be set to 12 */ 5707 rdf_resp->desc_list_len = cpu_to_be32(12); 5708 5709 /* FC-LS-5 specifies LS REQ Information descriptor */ 5710 rdf_resp->lsri.desc_tag = cpu_to_be32(1); 5711 rdf_resp->lsri.desc_len = cpu_to_be32(sizeof(u32)); 5712 rdf_resp->lsri.rqst_w0.cmd = ELS_RDF; 5713 break; 5714 default: 5715 return 1; 5716 } 5717 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 5718 spin_lock_irq(&ndlp->lock); 5719 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED || 5720 ndlp->nlp_flag & NLP_REG_LOGIN_SEND)) 5721 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 5722 spin_unlock_irq(&ndlp->lock); 5723 elsiocb->cmd_cmpl = lpfc_cmpl_els_logo_acc; 5724 } else { 5725 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 5726 } 5727 5728 phba->fc_stat.elsXmitACC++; 5729 elsiocb->ndlp = lpfc_nlp_get(ndlp); 5730 if (!elsiocb->ndlp) { 5731 lpfc_els_free_iocb(phba, elsiocb); 5732 return 1; 5733 } 5734 5735 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 5736 if (rc == IOCB_ERROR) { 5737 lpfc_els_free_iocb(phba, elsiocb); 5738 lpfc_nlp_put(ndlp); 5739 return 1; 5740 } 5741 5742 /* Xmit ELS ACC response tag <ulpIoTag> */ 5743 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5744 "0128 Xmit ELS ACC response Status: x%x, IoTag: x%x, " 5745 "XRI: x%x, DID: x%x, nlp_flag: x%x nlp_state: x%x " 5746 "RPI: x%x, fc_flag x%x refcnt %d\n", 5747 rc, elsiocb->iotag, elsiocb->sli4_xritag, 5748 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5749 ndlp->nlp_rpi, vport->fc_flag, kref_read(&ndlp->kref)); 5750 return 0; 5751 } 5752 5753 /** 5754 * lpfc_els_rsp_reject - Prepare and issue a rjt response iocb command 5755 * @vport: pointer to a virtual N_Port data structure. 5756 * @rejectError: reject response to issue 5757 * @oldiocb: pointer to the original lpfc command iocb data structure. 5758 * @ndlp: pointer to a node-list data structure. 5759 * @mbox: pointer to the driver internal queue element for mailbox command. 5760 * 5761 * This routine prepares and issue an Reject (RJT) response IOCB 5762 * command. If a @mbox pointer is passed in, it will be put into the 5763 * context_un.mbox field of the IOCB for the completion callback function 5764 * to issue to the HBA later. 5765 * 5766 * Note that the ndlp reference count will be incremented by 1 for holding the 5767 * ndlp and the reference to ndlp will be stored into the ndlp field of 5768 * the IOCB for the completion callback function to the reject response 5769 * ELS IOCB command. 5770 * 5771 * Return code 5772 * 0 - Successfully issued reject response 5773 * 1 - Failed to issue reject response 5774 **/ 5775 int 5776 lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, 5777 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, 5778 LPFC_MBOXQ_t *mbox) 5779 { 5780 int rc; 5781 struct lpfc_hba *phba = vport->phba; 5782 IOCB_t *icmd; 5783 IOCB_t *oldcmd; 5784 union lpfc_wqe128 *wqe; 5785 struct lpfc_iocbq *elsiocb; 5786 uint8_t *pcmd; 5787 uint16_t cmdsize; 5788 5789 cmdsize = 2 * sizeof(uint32_t); 5790 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 5791 ndlp->nlp_DID, ELS_CMD_LS_RJT); 5792 if (!elsiocb) 5793 return 1; 5794 5795 if (phba->sli_rev == LPFC_SLI_REV4) { 5796 wqe = &elsiocb->wqe; 5797 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 5798 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 5799 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5800 get_job_rcvoxid(phba, oldiocb)); 5801 } else { 5802 icmd = &elsiocb->iocb; 5803 oldcmd = &oldiocb->iocb; 5804 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5805 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; 5806 } 5807 5808 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 5809 5810 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; 5811 pcmd += sizeof(uint32_t); 5812 *((uint32_t *) (pcmd)) = rejectError; 5813 5814 if (mbox) 5815 elsiocb->context_un.mbox = mbox; 5816 5817 /* Xmit ELS RJT <err> response tag <ulpIoTag> */ 5818 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5819 "0129 Xmit ELS RJT x%x response tag x%x " 5820 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " 5821 "rpi x%x\n", 5822 rejectError, elsiocb->iotag, 5823 get_job_ulpcontext(phba, elsiocb), ndlp->nlp_DID, 5824 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); 5825 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5826 "Issue LS_RJT: did:x%x flg:x%x err:x%x", 5827 ndlp->nlp_DID, ndlp->nlp_flag, rejectError); 5828 5829 phba->fc_stat.elsXmitLSRJT++; 5830 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 5831 elsiocb->ndlp = lpfc_nlp_get(ndlp); 5832 if (!elsiocb->ndlp) { 5833 lpfc_els_free_iocb(phba, elsiocb); 5834 return 1; 5835 } 5836 5837 /* The NPIV instance is rejecting this unsolicited ELS. Make sure the 5838 * node's assigned RPI gets released provided this node is not already 5839 * registered with the transport. 5840 */ 5841 if (phba->sli_rev == LPFC_SLI_REV4 && 5842 vport->port_type == LPFC_NPIV_PORT && 5843 !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) { 5844 spin_lock_irq(&ndlp->lock); 5845 ndlp->nlp_flag |= NLP_RELEASE_RPI; 5846 spin_unlock_irq(&ndlp->lock); 5847 } 5848 5849 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 5850 if (rc == IOCB_ERROR) { 5851 lpfc_els_free_iocb(phba, elsiocb); 5852 lpfc_nlp_put(ndlp); 5853 return 1; 5854 } 5855 5856 return 0; 5857 } 5858 5859 /** 5860 * lpfc_issue_els_edc_rsp - Exchange Diagnostic Capabilities with the fabric. 5861 * @vport: pointer to a host virtual N_Port data structure. 5862 * @cmdiocb: pointer to the original lpfc command iocb data structure. 5863 * @ndlp: NPort to where rsp is directed 5864 * 5865 * This routine issues an EDC ACC RSP to the F-Port Controller to communicate 5866 * this N_Port's support of hardware signals in its Congestion 5867 * Capabilities Descriptor. 5868 * 5869 * Return code 5870 * 0 - Successfully issued edc rsp command 5871 * 1 - Failed to issue edc rsp command 5872 **/ 5873 static int 5874 lpfc_issue_els_edc_rsp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 5875 struct lpfc_nodelist *ndlp) 5876 { 5877 struct lpfc_hba *phba = vport->phba; 5878 struct fc_els_edc_resp *edc_rsp; 5879 struct fc_tlv_desc *tlv; 5880 struct lpfc_iocbq *elsiocb; 5881 IOCB_t *icmd, *cmd; 5882 union lpfc_wqe128 *wqe; 5883 u32 cgn_desc_size, lft_desc_size; 5884 u16 cmdsize; 5885 uint8_t *pcmd; 5886 int rc; 5887 5888 cmdsize = sizeof(struct fc_els_edc_resp); 5889 cgn_desc_size = sizeof(struct fc_diag_cg_sig_desc); 5890 lft_desc_size = (lpfc_link_is_lds_capable(phba)) ? 5891 sizeof(struct fc_diag_lnkflt_desc) : 0; 5892 cmdsize += cgn_desc_size + lft_desc_size; 5893 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, cmdiocb->retry, 5894 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5895 if (!elsiocb) 5896 return 1; 5897 5898 if (phba->sli_rev == LPFC_SLI_REV4) { 5899 wqe = &elsiocb->wqe; 5900 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 5901 get_job_ulpcontext(phba, cmdiocb)); /* Xri / rx_id */ 5902 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5903 get_job_rcvoxid(phba, cmdiocb)); 5904 } else { 5905 icmd = &elsiocb->iocb; 5906 cmd = &cmdiocb->iocb; 5907 icmd->ulpContext = cmd->ulpContext; /* Xri / rx_id */ 5908 icmd->unsli3.rcvsli3.ox_id = cmd->unsli3.rcvsli3.ox_id; 5909 } 5910 5911 pcmd = elsiocb->cmd_dmabuf->virt; 5912 memset(pcmd, 0, cmdsize); 5913 5914 edc_rsp = (struct fc_els_edc_resp *)pcmd; 5915 edc_rsp->acc_hdr.la_cmd = ELS_LS_ACC; 5916 edc_rsp->desc_list_len = cpu_to_be32(sizeof(struct fc_els_lsri_desc) + 5917 cgn_desc_size + lft_desc_size); 5918 edc_rsp->lsri.desc_tag = cpu_to_be32(ELS_DTAG_LS_REQ_INFO); 5919 edc_rsp->lsri.desc_len = cpu_to_be32( 5920 FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_els_lsri_desc)); 5921 edc_rsp->lsri.rqst_w0.cmd = ELS_EDC; 5922 tlv = edc_rsp->desc; 5923 lpfc_format_edc_cgn_desc(phba, tlv); 5924 tlv = fc_tlv_next_desc(tlv); 5925 if (lft_desc_size) 5926 lpfc_format_edc_lft_desc(phba, tlv); 5927 5928 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5929 "Issue EDC ACC: did:x%x flg:x%x refcnt %d", 5930 ndlp->nlp_DID, ndlp->nlp_flag, 5931 kref_read(&ndlp->kref)); 5932 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 5933 5934 phba->fc_stat.elsXmitACC++; 5935 elsiocb->ndlp = lpfc_nlp_get(ndlp); 5936 if (!elsiocb->ndlp) { 5937 lpfc_els_free_iocb(phba, elsiocb); 5938 return 1; 5939 } 5940 5941 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 5942 if (rc == IOCB_ERROR) { 5943 lpfc_els_free_iocb(phba, elsiocb); 5944 lpfc_nlp_put(ndlp); 5945 return 1; 5946 } 5947 5948 /* Xmit ELS ACC response tag <ulpIoTag> */ 5949 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5950 "0152 Xmit EDC ACC response Status: x%x, IoTag: x%x, " 5951 "XRI: x%x, DID: x%x, nlp_flag: x%x nlp_state: x%x " 5952 "RPI: x%x, fc_flag x%x\n", 5953 rc, elsiocb->iotag, elsiocb->sli4_xritag, 5954 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5955 ndlp->nlp_rpi, vport->fc_flag); 5956 5957 return 0; 5958 } 5959 5960 /** 5961 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd 5962 * @vport: pointer to a virtual N_Port data structure. 5963 * @oldiocb: pointer to the original lpfc command iocb data structure. 5964 * @ndlp: pointer to a node-list data structure. 5965 * 5966 * This routine prepares and issues an Accept (ACC) response to Address 5967 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB 5968 * and invokes the lpfc_sli_issue_iocb() routine to send out the command. 5969 * 5970 * Note that the ndlp reference count will be incremented by 1 for holding the 5971 * ndlp and the reference to ndlp will be stored into the ndlp field of 5972 * the IOCB for the completion callback function to the ADISC Accept response 5973 * ELS IOCB command. 5974 * 5975 * Return code 5976 * 0 - Successfully issued acc adisc response 5977 * 1 - Failed to issue adisc acc response 5978 **/ 5979 int 5980 lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, 5981 struct lpfc_nodelist *ndlp) 5982 { 5983 struct lpfc_hba *phba = vport->phba; 5984 ADISC *ap; 5985 IOCB_t *icmd, *oldcmd; 5986 union lpfc_wqe128 *wqe; 5987 struct lpfc_iocbq *elsiocb; 5988 uint8_t *pcmd; 5989 uint16_t cmdsize; 5990 int rc; 5991 u32 ulp_context; 5992 5993 cmdsize = sizeof(uint32_t) + sizeof(ADISC); 5994 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 5995 ndlp->nlp_DID, ELS_CMD_ACC); 5996 if (!elsiocb) 5997 return 1; 5998 5999 if (phba->sli_rev == LPFC_SLI_REV4) { 6000 wqe = &elsiocb->wqe; 6001 /* XRI / rx_id */ 6002 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6003 get_job_ulpcontext(phba, oldiocb)); 6004 ulp_context = get_job_ulpcontext(phba, elsiocb); 6005 /* oxid */ 6006 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6007 get_job_rcvoxid(phba, oldiocb)); 6008 } else { 6009 icmd = &elsiocb->iocb; 6010 oldcmd = &oldiocb->iocb; 6011 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6012 ulp_context = elsiocb->iocb.ulpContext; 6013 icmd->unsli3.rcvsli3.ox_id = 6014 oldcmd->unsli3.rcvsli3.ox_id; 6015 } 6016 6017 /* Xmit ADISC ACC response tag <ulpIoTag> */ 6018 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6019 "0130 Xmit ADISC ACC response iotag x%x xri: " 6020 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n", 6021 elsiocb->iotag, ulp_context, 6022 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 6023 ndlp->nlp_rpi); 6024 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6025 6026 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 6027 pcmd += sizeof(uint32_t); 6028 6029 ap = (ADISC *) (pcmd); 6030 ap->hardAL_PA = phba->fc_pref_ALPA; 6031 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); 6032 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 6033 ap->DID = be32_to_cpu(vport->fc_myDID); 6034 6035 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6036 "Issue ACC ADISC: did:x%x flg:x%x refcnt %d", 6037 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6038 6039 phba->fc_stat.elsXmitACC++; 6040 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6041 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6042 if (!elsiocb->ndlp) { 6043 lpfc_els_free_iocb(phba, elsiocb); 6044 return 1; 6045 } 6046 6047 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6048 if (rc == IOCB_ERROR) { 6049 lpfc_els_free_iocb(phba, elsiocb); 6050 lpfc_nlp_put(ndlp); 6051 return 1; 6052 } 6053 6054 return 0; 6055 } 6056 6057 /** 6058 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd 6059 * @vport: pointer to a virtual N_Port data structure. 6060 * @oldiocb: pointer to the original lpfc command iocb data structure. 6061 * @ndlp: pointer to a node-list data structure. 6062 * 6063 * This routine prepares and issues an Accept (ACC) response to Process 6064 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB 6065 * and invokes the lpfc_sli_issue_iocb() routine to send out the command. 6066 * 6067 * Note that the ndlp reference count will be incremented by 1 for holding the 6068 * ndlp and the reference to ndlp will be stored into the ndlp field of 6069 * the IOCB for the completion callback function to the PRLI Accept response 6070 * ELS IOCB command. 6071 * 6072 * Return code 6073 * 0 - Successfully issued acc prli response 6074 * 1 - Failed to issue acc prli response 6075 **/ 6076 int 6077 lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, 6078 struct lpfc_nodelist *ndlp) 6079 { 6080 struct lpfc_hba *phba = vport->phba; 6081 PRLI *npr; 6082 struct lpfc_nvme_prli *npr_nvme; 6083 lpfc_vpd_t *vpd; 6084 IOCB_t *icmd; 6085 IOCB_t *oldcmd; 6086 union lpfc_wqe128 *wqe; 6087 struct lpfc_iocbq *elsiocb; 6088 uint8_t *pcmd; 6089 uint16_t cmdsize; 6090 uint32_t prli_fc4_req, *req_payload; 6091 struct lpfc_dmabuf *req_buf; 6092 int rc; 6093 u32 elsrspcmd, ulp_context; 6094 6095 /* Need the incoming PRLI payload to determine if the ACC is for an 6096 * FC4 or NVME PRLI type. The PRLI type is at word 1. 6097 */ 6098 req_buf = oldiocb->cmd_dmabuf; 6099 req_payload = (((uint32_t *)req_buf->virt) + 1); 6100 6101 /* PRLI type payload is at byte 3 for FCP or NVME. */ 6102 prli_fc4_req = be32_to_cpu(*req_payload); 6103 prli_fc4_req = (prli_fc4_req >> 24) & 0xff; 6104 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6105 "6127 PRLI_ACC: Req Type x%x, Word1 x%08x\n", 6106 prli_fc4_req, *((uint32_t *)req_payload)); 6107 6108 if (prli_fc4_req == PRLI_FCP_TYPE) { 6109 cmdsize = sizeof(uint32_t) + sizeof(PRLI); 6110 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); 6111 } else if (prli_fc4_req == PRLI_NVME_TYPE) { 6112 cmdsize = sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli); 6113 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_NVMEPRLI & ~ELS_RSP_MASK)); 6114 } else { 6115 return 1; 6116 } 6117 6118 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 6119 ndlp->nlp_DID, elsrspcmd); 6120 if (!elsiocb) 6121 return 1; 6122 6123 if (phba->sli_rev == LPFC_SLI_REV4) { 6124 wqe = &elsiocb->wqe; 6125 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6126 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 6127 ulp_context = get_job_ulpcontext(phba, elsiocb); 6128 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6129 get_job_rcvoxid(phba, oldiocb)); 6130 } else { 6131 icmd = &elsiocb->iocb; 6132 oldcmd = &oldiocb->iocb; 6133 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6134 ulp_context = elsiocb->iocb.ulpContext; 6135 icmd->unsli3.rcvsli3.ox_id = 6136 oldcmd->unsli3.rcvsli3.ox_id; 6137 } 6138 6139 /* Xmit PRLI ACC response tag <ulpIoTag> */ 6140 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6141 "0131 Xmit PRLI ACC response tag x%x xri x%x, " 6142 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", 6143 elsiocb->iotag, ulp_context, 6144 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 6145 ndlp->nlp_rpi); 6146 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6147 memset(pcmd, 0, cmdsize); 6148 6149 *((uint32_t *)(pcmd)) = elsrspcmd; 6150 pcmd += sizeof(uint32_t); 6151 6152 /* For PRLI, remainder of payload is PRLI parameter page */ 6153 vpd = &phba->vpd; 6154 6155 if (prli_fc4_req == PRLI_FCP_TYPE) { 6156 /* 6157 * If the remote port is a target and our firmware version 6158 * is 3.20 or later, set the following bits for FC-TAPE 6159 * support. 6160 */ 6161 npr = (PRLI *) pcmd; 6162 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 6163 (vpd->rev.feaLevelHigh >= 0x02)) { 6164 npr->ConfmComplAllowed = 1; 6165 npr->Retry = 1; 6166 npr->TaskRetryIdReq = 1; 6167 } 6168 npr->acceptRspCode = PRLI_REQ_EXECUTED; 6169 npr->estabImagePair = 1; 6170 npr->readXferRdyDis = 1; 6171 npr->ConfmComplAllowed = 1; 6172 npr->prliType = PRLI_FCP_TYPE; 6173 npr->initiatorFunc = 1; 6174 } else if (prli_fc4_req == PRLI_NVME_TYPE) { 6175 /* Respond with an NVME PRLI Type */ 6176 npr_nvme = (struct lpfc_nvme_prli *) pcmd; 6177 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE); 6178 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */ 6179 bf_set(prli_acc_rsp_code, npr_nvme, PRLI_REQ_EXECUTED); 6180 if (phba->nvmet_support) { 6181 bf_set(prli_tgt, npr_nvme, 1); 6182 bf_set(prli_disc, npr_nvme, 1); 6183 if (phba->cfg_nvme_enable_fb) { 6184 bf_set(prli_fba, npr_nvme, 1); 6185 6186 /* TBD. Target mode needs to post buffers 6187 * that support the configured first burst 6188 * byte size. 6189 */ 6190 bf_set(prli_fb_sz, npr_nvme, 6191 phba->cfg_nvmet_fb_size); 6192 } 6193 } else { 6194 bf_set(prli_init, npr_nvme, 1); 6195 } 6196 6197 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 6198 "6015 NVME issue PRLI ACC word1 x%08x " 6199 "word4 x%08x word5 x%08x flag x%x, " 6200 "fcp_info x%x nlp_type x%x\n", 6201 npr_nvme->word1, npr_nvme->word4, 6202 npr_nvme->word5, ndlp->nlp_flag, 6203 ndlp->nlp_fcp_info, ndlp->nlp_type); 6204 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1); 6205 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4); 6206 npr_nvme->word5 = cpu_to_be32(npr_nvme->word5); 6207 } else 6208 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 6209 "6128 Unknown FC_TYPE x%x x%x ndlp x%06x\n", 6210 prli_fc4_req, ndlp->nlp_fc4_type, 6211 ndlp->nlp_DID); 6212 6213 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6214 "Issue ACC PRLI: did:x%x flg:x%x", 6215 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6216 6217 phba->fc_stat.elsXmitACC++; 6218 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6219 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6220 if (!elsiocb->ndlp) { 6221 lpfc_els_free_iocb(phba, elsiocb); 6222 return 1; 6223 } 6224 6225 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6226 if (rc == IOCB_ERROR) { 6227 lpfc_els_free_iocb(phba, elsiocb); 6228 lpfc_nlp_put(ndlp); 6229 return 1; 6230 } 6231 6232 return 0; 6233 } 6234 6235 /** 6236 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command 6237 * @vport: pointer to a virtual N_Port data structure. 6238 * @format: rnid command format. 6239 * @oldiocb: pointer to the original lpfc command iocb data structure. 6240 * @ndlp: pointer to a node-list data structure. 6241 * 6242 * This routine issues a Request Node Identification Data (RNID) Accept 6243 * (ACC) response. It constructs the RNID ACC response command according to 6244 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to 6245 * issue the response. 6246 * 6247 * Note that the ndlp reference count will be incremented by 1 for holding the 6248 * ndlp and the reference to ndlp will be stored into the ndlp field of 6249 * the IOCB for the completion callback function. 6250 * 6251 * Return code 6252 * 0 - Successfully issued acc rnid response 6253 * 1 - Failed to issue acc rnid response 6254 **/ 6255 static int 6256 lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, 6257 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) 6258 { 6259 struct lpfc_hba *phba = vport->phba; 6260 RNID *rn; 6261 IOCB_t *icmd, *oldcmd; 6262 union lpfc_wqe128 *wqe; 6263 struct lpfc_iocbq *elsiocb; 6264 uint8_t *pcmd; 6265 uint16_t cmdsize; 6266 int rc; 6267 u32 ulp_context; 6268 6269 cmdsize = sizeof(uint32_t) + sizeof(uint32_t) 6270 + (2 * sizeof(struct lpfc_name)); 6271 if (format) 6272 cmdsize += sizeof(RNID_TOP_DISC); 6273 6274 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 6275 ndlp->nlp_DID, ELS_CMD_ACC); 6276 if (!elsiocb) 6277 return 1; 6278 6279 if (phba->sli_rev == LPFC_SLI_REV4) { 6280 wqe = &elsiocb->wqe; 6281 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6282 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 6283 ulp_context = get_job_ulpcontext(phba, elsiocb); 6284 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6285 get_job_rcvoxid(phba, oldiocb)); 6286 } else { 6287 icmd = &elsiocb->iocb; 6288 oldcmd = &oldiocb->iocb; 6289 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6290 ulp_context = elsiocb->iocb.ulpContext; 6291 icmd->unsli3.rcvsli3.ox_id = 6292 oldcmd->unsli3.rcvsli3.ox_id; 6293 } 6294 6295 /* Xmit RNID ACC response tag <ulpIoTag> */ 6296 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6297 "0132 Xmit RNID ACC response tag x%x xri x%x\n", 6298 elsiocb->iotag, ulp_context); 6299 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6300 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 6301 pcmd += sizeof(uint32_t); 6302 6303 memset(pcmd, 0, sizeof(RNID)); 6304 rn = (RNID *) (pcmd); 6305 rn->Format = format; 6306 rn->CommonLen = (2 * sizeof(struct lpfc_name)); 6307 memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); 6308 memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 6309 switch (format) { 6310 case 0: 6311 rn->SpecificLen = 0; 6312 break; 6313 case RNID_TOPOLOGY_DISC: 6314 rn->SpecificLen = sizeof(RNID_TOP_DISC); 6315 memcpy(&rn->un.topologyDisc.portName, 6316 &vport->fc_portname, sizeof(struct lpfc_name)); 6317 rn->un.topologyDisc.unitType = RNID_HBA; 6318 rn->un.topologyDisc.physPort = 0; 6319 rn->un.topologyDisc.attachedNodes = 0; 6320 break; 6321 default: 6322 rn->CommonLen = 0; 6323 rn->SpecificLen = 0; 6324 break; 6325 } 6326 6327 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6328 "Issue ACC RNID: did:x%x flg:x%x refcnt %d", 6329 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6330 6331 phba->fc_stat.elsXmitACC++; 6332 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6333 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6334 if (!elsiocb->ndlp) { 6335 lpfc_els_free_iocb(phba, elsiocb); 6336 return 1; 6337 } 6338 6339 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6340 if (rc == IOCB_ERROR) { 6341 lpfc_els_free_iocb(phba, elsiocb); 6342 lpfc_nlp_put(ndlp); 6343 return 1; 6344 } 6345 6346 return 0; 6347 } 6348 6349 /** 6350 * lpfc_els_clear_rrq - Clear the rq that this rrq describes. 6351 * @vport: pointer to a virtual N_Port data structure. 6352 * @iocb: pointer to the lpfc command iocb data structure. 6353 * @ndlp: pointer to a node-list data structure. 6354 * 6355 * Return 6356 **/ 6357 static void 6358 lpfc_els_clear_rrq(struct lpfc_vport *vport, 6359 struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp) 6360 { 6361 struct lpfc_hba *phba = vport->phba; 6362 uint8_t *pcmd; 6363 struct RRQ *rrq; 6364 uint16_t rxid; 6365 uint16_t xri; 6366 struct lpfc_node_rrq *prrq; 6367 6368 6369 pcmd = (uint8_t *)iocb->cmd_dmabuf->virt; 6370 pcmd += sizeof(uint32_t); 6371 rrq = (struct RRQ *)pcmd; 6372 rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg); 6373 rxid = bf_get(rrq_rxid, rrq); 6374 6375 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6376 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x" 6377 " x%x x%x\n", 6378 be32_to_cpu(bf_get(rrq_did, rrq)), 6379 bf_get(rrq_oxid, rrq), 6380 rxid, 6381 get_wqe_reqtag(iocb), 6382 get_job_ulpcontext(phba, iocb)); 6383 6384 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6385 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x", 6386 ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg); 6387 if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq))) 6388 xri = bf_get(rrq_oxid, rrq); 6389 else 6390 xri = rxid; 6391 prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID); 6392 if (prrq) 6393 lpfc_clr_rrq_active(phba, xri, prrq); 6394 return; 6395 } 6396 6397 /** 6398 * lpfc_els_rsp_echo_acc - Issue echo acc response 6399 * @vport: pointer to a virtual N_Port data structure. 6400 * @data: pointer to echo data to return in the accept. 6401 * @oldiocb: pointer to the original lpfc command iocb data structure. 6402 * @ndlp: pointer to a node-list data structure. 6403 * 6404 * Return code 6405 * 0 - Successfully issued acc echo response 6406 * 1 - Failed to issue acc echo response 6407 **/ 6408 static int 6409 lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data, 6410 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) 6411 { 6412 struct lpfc_hba *phba = vport->phba; 6413 IOCB_t *icmd, *oldcmd; 6414 union lpfc_wqe128 *wqe; 6415 struct lpfc_iocbq *elsiocb; 6416 uint8_t *pcmd; 6417 uint16_t cmdsize; 6418 int rc; 6419 u32 ulp_context; 6420 6421 if (phba->sli_rev == LPFC_SLI_REV4) 6422 cmdsize = oldiocb->wcqe_cmpl.total_data_placed; 6423 else 6424 cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len; 6425 6426 /* The accumulated length can exceed the BPL_SIZE. For 6427 * now, use this as the limit 6428 */ 6429 if (cmdsize > LPFC_BPL_SIZE) 6430 cmdsize = LPFC_BPL_SIZE; 6431 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 6432 ndlp->nlp_DID, ELS_CMD_ACC); 6433 if (!elsiocb) 6434 return 1; 6435 6436 if (phba->sli_rev == LPFC_SLI_REV4) { 6437 wqe = &elsiocb->wqe; 6438 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6439 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 6440 ulp_context = get_job_ulpcontext(phba, elsiocb); 6441 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6442 get_job_rcvoxid(phba, oldiocb)); 6443 } else { 6444 icmd = &elsiocb->iocb; 6445 oldcmd = &oldiocb->iocb; 6446 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6447 ulp_context = elsiocb->iocb.ulpContext; 6448 icmd->unsli3.rcvsli3.ox_id = 6449 oldcmd->unsli3.rcvsli3.ox_id; 6450 } 6451 6452 /* Xmit ECHO ACC response tag <ulpIoTag> */ 6453 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6454 "2876 Xmit ECHO ACC response tag x%x xri x%x\n", 6455 elsiocb->iotag, ulp_context); 6456 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6457 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 6458 pcmd += sizeof(uint32_t); 6459 memcpy(pcmd, data, cmdsize - sizeof(uint32_t)); 6460 6461 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6462 "Issue ACC ECHO: did:x%x flg:x%x refcnt %d", 6463 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6464 6465 phba->fc_stat.elsXmitACC++; 6466 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6467 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6468 if (!elsiocb->ndlp) { 6469 lpfc_els_free_iocb(phba, elsiocb); 6470 return 1; 6471 } 6472 6473 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6474 if (rc == IOCB_ERROR) { 6475 lpfc_els_free_iocb(phba, elsiocb); 6476 lpfc_nlp_put(ndlp); 6477 return 1; 6478 } 6479 6480 return 0; 6481 } 6482 6483 /** 6484 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport 6485 * @vport: pointer to a host virtual N_Port data structure. 6486 * 6487 * This routine issues Address Discover (ADISC) ELS commands to those 6488 * N_Ports which are in node port recovery state and ADISC has not been issued 6489 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the 6490 * lpfc_issue_els_adisc() routine, the per @vport number of discover count 6491 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a 6492 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will 6493 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC 6494 * IOCBs quit for later pick up. On the other hand, after walking through 6495 * all the ndlps with the @vport and there is none ADISC IOCB issued, the 6496 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is 6497 * no more ADISC need to be sent. 6498 * 6499 * Return code 6500 * The number of N_Ports with adisc issued. 6501 **/ 6502 int 6503 lpfc_els_disc_adisc(struct lpfc_vport *vport) 6504 { 6505 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6506 struct lpfc_nodelist *ndlp, *next_ndlp; 6507 int sentadisc = 0; 6508 6509 /* go thru NPR nodes and issue any remaining ELS ADISCs */ 6510 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 6511 6512 if (ndlp->nlp_state != NLP_STE_NPR_NODE || 6513 !(ndlp->nlp_flag & NLP_NPR_ADISC)) 6514 continue; 6515 6516 spin_lock_irq(&ndlp->lock); 6517 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 6518 spin_unlock_irq(&ndlp->lock); 6519 6520 if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 6521 /* This node was marked for ADISC but was not picked 6522 * for discovery. This is possible if the node was 6523 * missing in gidft response. 6524 * 6525 * At time of marking node for ADISC, we skipped unreg 6526 * from backend 6527 */ 6528 lpfc_nlp_unreg_node(vport, ndlp); 6529 lpfc_unreg_rpi(vport, ndlp); 6530 continue; 6531 } 6532 6533 ndlp->nlp_prev_state = ndlp->nlp_state; 6534 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 6535 lpfc_issue_els_adisc(vport, ndlp, 0); 6536 sentadisc++; 6537 vport->num_disc_nodes++; 6538 if (vport->num_disc_nodes >= 6539 vport->cfg_discovery_threads) { 6540 spin_lock_irq(shost->host_lock); 6541 vport->fc_flag |= FC_NLP_MORE; 6542 spin_unlock_irq(shost->host_lock); 6543 break; 6544 } 6545 6546 } 6547 if (sentadisc == 0) { 6548 spin_lock_irq(shost->host_lock); 6549 vport->fc_flag &= ~FC_NLP_MORE; 6550 spin_unlock_irq(shost->host_lock); 6551 } 6552 return sentadisc; 6553 } 6554 6555 /** 6556 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc 6557 * @vport: pointer to a host virtual N_Port data structure. 6558 * 6559 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports 6560 * which are in node port recovery state, with a @vport. Each time an ELS 6561 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine, 6562 * the per @vport number of discover count (num_disc_nodes) shall be 6563 * incremented. If the num_disc_nodes reaches a pre-configured threshold 6564 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE 6565 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for 6566 * later pick up. On the other hand, after walking through all the ndlps with 6567 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag 6568 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC 6569 * PLOGI need to be sent. 6570 * 6571 * Return code 6572 * The number of N_Ports with plogi issued. 6573 **/ 6574 int 6575 lpfc_els_disc_plogi(struct lpfc_vport *vport) 6576 { 6577 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6578 struct lpfc_nodelist *ndlp, *next_ndlp; 6579 int sentplogi = 0; 6580 6581 /* go thru NPR nodes and issue any remaining ELS PLOGIs */ 6582 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 6583 if (ndlp->nlp_state == NLP_STE_NPR_NODE && 6584 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && 6585 (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && 6586 (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { 6587 ndlp->nlp_prev_state = ndlp->nlp_state; 6588 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 6589 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 6590 sentplogi++; 6591 vport->num_disc_nodes++; 6592 if (vport->num_disc_nodes >= 6593 vport->cfg_discovery_threads) { 6594 spin_lock_irq(shost->host_lock); 6595 vport->fc_flag |= FC_NLP_MORE; 6596 spin_unlock_irq(shost->host_lock); 6597 break; 6598 } 6599 } 6600 } 6601 6602 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 6603 "6452 Discover PLOGI %d flag x%x\n", 6604 sentplogi, vport->fc_flag); 6605 6606 if (sentplogi) { 6607 lpfc_set_disctmo(vport); 6608 } 6609 else { 6610 spin_lock_irq(shost->host_lock); 6611 vport->fc_flag &= ~FC_NLP_MORE; 6612 spin_unlock_irq(shost->host_lock); 6613 } 6614 return sentplogi; 6615 } 6616 6617 static uint32_t 6618 lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc, 6619 uint32_t word0) 6620 { 6621 6622 desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG); 6623 desc->payload.els_req = word0; 6624 desc->length = cpu_to_be32(sizeof(desc->payload)); 6625 6626 return sizeof(struct fc_rdp_link_service_desc); 6627 } 6628 6629 static uint32_t 6630 lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc, 6631 uint8_t *page_a0, uint8_t *page_a2) 6632 { 6633 uint16_t wavelength; 6634 uint16_t temperature; 6635 uint16_t rx_power; 6636 uint16_t tx_bias; 6637 uint16_t tx_power; 6638 uint16_t vcc; 6639 uint16_t flag = 0; 6640 struct sff_trasnceiver_codes_byte4 *trasn_code_byte4; 6641 struct sff_trasnceiver_codes_byte5 *trasn_code_byte5; 6642 6643 desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG); 6644 6645 trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *) 6646 &page_a0[SSF_TRANSCEIVER_CODE_B4]; 6647 trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *) 6648 &page_a0[SSF_TRANSCEIVER_CODE_B5]; 6649 6650 if ((trasn_code_byte4->fc_sw_laser) || 6651 (trasn_code_byte5->fc_sw_laser_sl) || 6652 (trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */ 6653 flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT); 6654 } else if (trasn_code_byte4->fc_lw_laser) { 6655 wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) | 6656 page_a0[SSF_WAVELENGTH_B0]; 6657 if (wavelength == SFP_WAVELENGTH_LC1310) 6658 flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT; 6659 if (wavelength == SFP_WAVELENGTH_LL1550) 6660 flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT; 6661 } 6662 /* check if its SFP+ */ 6663 flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ? 6664 SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN) 6665 << SFP_FLAG_CT_SHIFT; 6666 6667 /* check if its OPTICAL */ 6668 flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ? 6669 SFP_FLAG_IS_OPTICAL_PORT : 0) 6670 << SFP_FLAG_IS_OPTICAL_SHIFT; 6671 6672 temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 | 6673 page_a2[SFF_TEMPERATURE_B0]); 6674 vcc = (page_a2[SFF_VCC_B1] << 8 | 6675 page_a2[SFF_VCC_B0]); 6676 tx_power = (page_a2[SFF_TXPOWER_B1] << 8 | 6677 page_a2[SFF_TXPOWER_B0]); 6678 tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 | 6679 page_a2[SFF_TX_BIAS_CURRENT_B0]); 6680 rx_power = (page_a2[SFF_RXPOWER_B1] << 8 | 6681 page_a2[SFF_RXPOWER_B0]); 6682 desc->sfp_info.temperature = cpu_to_be16(temperature); 6683 desc->sfp_info.rx_power = cpu_to_be16(rx_power); 6684 desc->sfp_info.tx_bias = cpu_to_be16(tx_bias); 6685 desc->sfp_info.tx_power = cpu_to_be16(tx_power); 6686 desc->sfp_info.vcc = cpu_to_be16(vcc); 6687 6688 desc->sfp_info.flags = cpu_to_be16(flag); 6689 desc->length = cpu_to_be32(sizeof(desc->sfp_info)); 6690 6691 return sizeof(struct fc_rdp_sfp_desc); 6692 } 6693 6694 static uint32_t 6695 lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc, 6696 READ_LNK_VAR *stat) 6697 { 6698 uint32_t type; 6699 6700 desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG); 6701 6702 type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT; 6703 6704 desc->info.port_type = cpu_to_be32(type); 6705 6706 desc->info.link_status.link_failure_cnt = 6707 cpu_to_be32(stat->linkFailureCnt); 6708 desc->info.link_status.loss_of_synch_cnt = 6709 cpu_to_be32(stat->lossSyncCnt); 6710 desc->info.link_status.loss_of_signal_cnt = 6711 cpu_to_be32(stat->lossSignalCnt); 6712 desc->info.link_status.primitive_seq_proto_err = 6713 cpu_to_be32(stat->primSeqErrCnt); 6714 desc->info.link_status.invalid_trans_word = 6715 cpu_to_be32(stat->invalidXmitWord); 6716 desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt); 6717 6718 desc->length = cpu_to_be32(sizeof(desc->info)); 6719 6720 return sizeof(struct fc_rdp_link_error_status_desc); 6721 } 6722 6723 static uint32_t 6724 lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat, 6725 struct lpfc_vport *vport) 6726 { 6727 uint32_t bbCredit; 6728 6729 desc->tag = cpu_to_be32(RDP_BBC_DESC_TAG); 6730 6731 bbCredit = vport->fc_sparam.cmn.bbCreditLsb | 6732 (vport->fc_sparam.cmn.bbCreditMsb << 8); 6733 desc->bbc_info.port_bbc = cpu_to_be32(bbCredit); 6734 if (vport->phba->fc_topology != LPFC_TOPOLOGY_LOOP) { 6735 bbCredit = vport->phba->fc_fabparam.cmn.bbCreditLsb | 6736 (vport->phba->fc_fabparam.cmn.bbCreditMsb << 8); 6737 desc->bbc_info.attached_port_bbc = cpu_to_be32(bbCredit); 6738 } else { 6739 desc->bbc_info.attached_port_bbc = 0; 6740 } 6741 6742 desc->bbc_info.rtt = 0; 6743 desc->length = cpu_to_be32(sizeof(desc->bbc_info)); 6744 6745 return sizeof(struct fc_rdp_bbc_desc); 6746 } 6747 6748 static uint32_t 6749 lpfc_rdp_res_oed_temp_desc(struct lpfc_hba *phba, 6750 struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2) 6751 { 6752 uint32_t flags = 0; 6753 6754 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6755 6756 desc->oed_info.hi_alarm = page_a2[SSF_TEMP_HIGH_ALARM]; 6757 desc->oed_info.lo_alarm = page_a2[SSF_TEMP_LOW_ALARM]; 6758 desc->oed_info.hi_warning = page_a2[SSF_TEMP_HIGH_WARNING]; 6759 desc->oed_info.lo_warning = page_a2[SSF_TEMP_LOW_WARNING]; 6760 6761 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TEMPERATURE) 6762 flags |= RDP_OET_HIGH_ALARM; 6763 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TEMPERATURE) 6764 flags |= RDP_OET_LOW_ALARM; 6765 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TEMPERATURE) 6766 flags |= RDP_OET_HIGH_WARNING; 6767 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TEMPERATURE) 6768 flags |= RDP_OET_LOW_WARNING; 6769 6770 flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT); 6771 desc->oed_info.function_flags = cpu_to_be32(flags); 6772 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6773 return sizeof(struct fc_rdp_oed_sfp_desc); 6774 } 6775 6776 static uint32_t 6777 lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba *phba, 6778 struct fc_rdp_oed_sfp_desc *desc, 6779 uint8_t *page_a2) 6780 { 6781 uint32_t flags = 0; 6782 6783 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6784 6785 desc->oed_info.hi_alarm = page_a2[SSF_VOLTAGE_HIGH_ALARM]; 6786 desc->oed_info.lo_alarm = page_a2[SSF_VOLTAGE_LOW_ALARM]; 6787 desc->oed_info.hi_warning = page_a2[SSF_VOLTAGE_HIGH_WARNING]; 6788 desc->oed_info.lo_warning = page_a2[SSF_VOLTAGE_LOW_WARNING]; 6789 6790 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_VOLTAGE) 6791 flags |= RDP_OET_HIGH_ALARM; 6792 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_VOLTAGE) 6793 flags |= RDP_OET_LOW_ALARM; 6794 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_VOLTAGE) 6795 flags |= RDP_OET_HIGH_WARNING; 6796 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_VOLTAGE) 6797 flags |= RDP_OET_LOW_WARNING; 6798 6799 flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT); 6800 desc->oed_info.function_flags = cpu_to_be32(flags); 6801 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6802 return sizeof(struct fc_rdp_oed_sfp_desc); 6803 } 6804 6805 static uint32_t 6806 lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba *phba, 6807 struct fc_rdp_oed_sfp_desc *desc, 6808 uint8_t *page_a2) 6809 { 6810 uint32_t flags = 0; 6811 6812 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6813 6814 desc->oed_info.hi_alarm = page_a2[SSF_BIAS_HIGH_ALARM]; 6815 desc->oed_info.lo_alarm = page_a2[SSF_BIAS_LOW_ALARM]; 6816 desc->oed_info.hi_warning = page_a2[SSF_BIAS_HIGH_WARNING]; 6817 desc->oed_info.lo_warning = page_a2[SSF_BIAS_LOW_WARNING]; 6818 6819 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXBIAS) 6820 flags |= RDP_OET_HIGH_ALARM; 6821 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXBIAS) 6822 flags |= RDP_OET_LOW_ALARM; 6823 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXBIAS) 6824 flags |= RDP_OET_HIGH_WARNING; 6825 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXBIAS) 6826 flags |= RDP_OET_LOW_WARNING; 6827 6828 flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT); 6829 desc->oed_info.function_flags = cpu_to_be32(flags); 6830 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6831 return sizeof(struct fc_rdp_oed_sfp_desc); 6832 } 6833 6834 static uint32_t 6835 lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba *phba, 6836 struct fc_rdp_oed_sfp_desc *desc, 6837 uint8_t *page_a2) 6838 { 6839 uint32_t flags = 0; 6840 6841 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6842 6843 desc->oed_info.hi_alarm = page_a2[SSF_TXPOWER_HIGH_ALARM]; 6844 desc->oed_info.lo_alarm = page_a2[SSF_TXPOWER_LOW_ALARM]; 6845 desc->oed_info.hi_warning = page_a2[SSF_TXPOWER_HIGH_WARNING]; 6846 desc->oed_info.lo_warning = page_a2[SSF_TXPOWER_LOW_WARNING]; 6847 6848 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXPOWER) 6849 flags |= RDP_OET_HIGH_ALARM; 6850 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXPOWER) 6851 flags |= RDP_OET_LOW_ALARM; 6852 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXPOWER) 6853 flags |= RDP_OET_HIGH_WARNING; 6854 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXPOWER) 6855 flags |= RDP_OET_LOW_WARNING; 6856 6857 flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT); 6858 desc->oed_info.function_flags = cpu_to_be32(flags); 6859 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6860 return sizeof(struct fc_rdp_oed_sfp_desc); 6861 } 6862 6863 6864 static uint32_t 6865 lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba *phba, 6866 struct fc_rdp_oed_sfp_desc *desc, 6867 uint8_t *page_a2) 6868 { 6869 uint32_t flags = 0; 6870 6871 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6872 6873 desc->oed_info.hi_alarm = page_a2[SSF_RXPOWER_HIGH_ALARM]; 6874 desc->oed_info.lo_alarm = page_a2[SSF_RXPOWER_LOW_ALARM]; 6875 desc->oed_info.hi_warning = page_a2[SSF_RXPOWER_HIGH_WARNING]; 6876 desc->oed_info.lo_warning = page_a2[SSF_RXPOWER_LOW_WARNING]; 6877 6878 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_RXPOWER) 6879 flags |= RDP_OET_HIGH_ALARM; 6880 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_RXPOWER) 6881 flags |= RDP_OET_LOW_ALARM; 6882 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_RXPOWER) 6883 flags |= RDP_OET_HIGH_WARNING; 6884 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_RXPOWER) 6885 flags |= RDP_OET_LOW_WARNING; 6886 6887 flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT); 6888 desc->oed_info.function_flags = cpu_to_be32(flags); 6889 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6890 return sizeof(struct fc_rdp_oed_sfp_desc); 6891 } 6892 6893 static uint32_t 6894 lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc, 6895 uint8_t *page_a0, struct lpfc_vport *vport) 6896 { 6897 desc->tag = cpu_to_be32(RDP_OPD_DESC_TAG); 6898 memcpy(desc->opd_info.vendor_name, &page_a0[SSF_VENDOR_NAME], 16); 6899 memcpy(desc->opd_info.model_number, &page_a0[SSF_VENDOR_PN], 16); 6900 memcpy(desc->opd_info.serial_number, &page_a0[SSF_VENDOR_SN], 16); 6901 memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 4); 6902 memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8); 6903 desc->length = cpu_to_be32(sizeof(desc->opd_info)); 6904 return sizeof(struct fc_rdp_opd_sfp_desc); 6905 } 6906 6907 static uint32_t 6908 lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat) 6909 { 6910 if (bf_get(lpfc_read_link_stat_gec2, stat) == 0) 6911 return 0; 6912 desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG); 6913 6914 desc->info.CorrectedBlocks = 6915 cpu_to_be32(stat->fecCorrBlkCount); 6916 desc->info.UncorrectableBlocks = 6917 cpu_to_be32(stat->fecUncorrBlkCount); 6918 6919 desc->length = cpu_to_be32(sizeof(desc->info)); 6920 6921 return sizeof(struct fc_fec_rdp_desc); 6922 } 6923 6924 static uint32_t 6925 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba) 6926 { 6927 uint16_t rdp_cap = 0; 6928 uint16_t rdp_speed; 6929 6930 desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG); 6931 6932 switch (phba->fc_linkspeed) { 6933 case LPFC_LINK_SPEED_1GHZ: 6934 rdp_speed = RDP_PS_1GB; 6935 break; 6936 case LPFC_LINK_SPEED_2GHZ: 6937 rdp_speed = RDP_PS_2GB; 6938 break; 6939 case LPFC_LINK_SPEED_4GHZ: 6940 rdp_speed = RDP_PS_4GB; 6941 break; 6942 case LPFC_LINK_SPEED_8GHZ: 6943 rdp_speed = RDP_PS_8GB; 6944 break; 6945 case LPFC_LINK_SPEED_10GHZ: 6946 rdp_speed = RDP_PS_10GB; 6947 break; 6948 case LPFC_LINK_SPEED_16GHZ: 6949 rdp_speed = RDP_PS_16GB; 6950 break; 6951 case LPFC_LINK_SPEED_32GHZ: 6952 rdp_speed = RDP_PS_32GB; 6953 break; 6954 case LPFC_LINK_SPEED_64GHZ: 6955 rdp_speed = RDP_PS_64GB; 6956 break; 6957 case LPFC_LINK_SPEED_128GHZ: 6958 rdp_speed = RDP_PS_128GB; 6959 break; 6960 case LPFC_LINK_SPEED_256GHZ: 6961 rdp_speed = RDP_PS_256GB; 6962 break; 6963 default: 6964 rdp_speed = RDP_PS_UNKNOWN; 6965 break; 6966 } 6967 6968 desc->info.port_speed.speed = cpu_to_be16(rdp_speed); 6969 6970 if (phba->lmt & LMT_256Gb) 6971 rdp_cap |= RDP_PS_256GB; 6972 if (phba->lmt & LMT_128Gb) 6973 rdp_cap |= RDP_PS_128GB; 6974 if (phba->lmt & LMT_64Gb) 6975 rdp_cap |= RDP_PS_64GB; 6976 if (phba->lmt & LMT_32Gb) 6977 rdp_cap |= RDP_PS_32GB; 6978 if (phba->lmt & LMT_16Gb) 6979 rdp_cap |= RDP_PS_16GB; 6980 if (phba->lmt & LMT_10Gb) 6981 rdp_cap |= RDP_PS_10GB; 6982 if (phba->lmt & LMT_8Gb) 6983 rdp_cap |= RDP_PS_8GB; 6984 if (phba->lmt & LMT_4Gb) 6985 rdp_cap |= RDP_PS_4GB; 6986 if (phba->lmt & LMT_2Gb) 6987 rdp_cap |= RDP_PS_2GB; 6988 if (phba->lmt & LMT_1Gb) 6989 rdp_cap |= RDP_PS_1GB; 6990 6991 if (rdp_cap == 0) 6992 rdp_cap = RDP_CAP_UNKNOWN; 6993 if (phba->cfg_link_speed != LPFC_USER_LINK_SPEED_AUTO) 6994 rdp_cap |= RDP_CAP_USER_CONFIGURED; 6995 6996 desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap); 6997 desc->length = cpu_to_be32(sizeof(desc->info)); 6998 return sizeof(struct fc_rdp_port_speed_desc); 6999 } 7000 7001 static uint32_t 7002 lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc, 7003 struct lpfc_vport *vport) 7004 { 7005 7006 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG); 7007 7008 memcpy(desc->port_names.wwnn, &vport->fc_nodename, 7009 sizeof(desc->port_names.wwnn)); 7010 7011 memcpy(desc->port_names.wwpn, &vport->fc_portname, 7012 sizeof(desc->port_names.wwpn)); 7013 7014 desc->length = cpu_to_be32(sizeof(desc->port_names)); 7015 return sizeof(struct fc_rdp_port_name_desc); 7016 } 7017 7018 static uint32_t 7019 lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc, 7020 struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 7021 { 7022 7023 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG); 7024 if (vport->fc_flag & FC_FABRIC) { 7025 memcpy(desc->port_names.wwnn, &vport->fabric_nodename, 7026 sizeof(desc->port_names.wwnn)); 7027 7028 memcpy(desc->port_names.wwpn, &vport->fabric_portname, 7029 sizeof(desc->port_names.wwpn)); 7030 } else { /* Point to Point */ 7031 memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename, 7032 sizeof(desc->port_names.wwnn)); 7033 7034 memcpy(desc->port_names.wwpn, &ndlp->nlp_portname, 7035 sizeof(desc->port_names.wwpn)); 7036 } 7037 7038 desc->length = cpu_to_be32(sizeof(desc->port_names)); 7039 return sizeof(struct fc_rdp_port_name_desc); 7040 } 7041 7042 static void 7043 lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context, 7044 int status) 7045 { 7046 struct lpfc_nodelist *ndlp = rdp_context->ndlp; 7047 struct lpfc_vport *vport = ndlp->vport; 7048 struct lpfc_iocbq *elsiocb; 7049 struct ulp_bde64 *bpl; 7050 IOCB_t *icmd; 7051 union lpfc_wqe128 *wqe; 7052 uint8_t *pcmd; 7053 struct ls_rjt *stat; 7054 struct fc_rdp_res_frame *rdp_res; 7055 uint32_t cmdsize, len; 7056 uint16_t *flag_ptr; 7057 int rc; 7058 u32 ulp_context; 7059 7060 if (status != SUCCESS) 7061 goto error; 7062 7063 /* This will change once we know the true size of the RDP payload */ 7064 cmdsize = sizeof(struct fc_rdp_res_frame); 7065 7066 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, 7067 lpfc_max_els_tries, rdp_context->ndlp, 7068 rdp_context->ndlp->nlp_DID, ELS_CMD_ACC); 7069 if (!elsiocb) 7070 goto free_rdp_context; 7071 7072 ulp_context = get_job_ulpcontext(phba, elsiocb); 7073 if (phba->sli_rev == LPFC_SLI_REV4) { 7074 wqe = &elsiocb->wqe; 7075 /* ox-id of the frame */ 7076 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7077 rdp_context->ox_id); 7078 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 7079 rdp_context->rx_id); 7080 } else { 7081 icmd = &elsiocb->iocb; 7082 icmd->ulpContext = rdp_context->rx_id; 7083 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id; 7084 } 7085 7086 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 7087 "2171 Xmit RDP response tag x%x xri x%x, " 7088 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x", 7089 elsiocb->iotag, ulp_context, 7090 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 7091 ndlp->nlp_rpi); 7092 rdp_res = (struct fc_rdp_res_frame *)elsiocb->cmd_dmabuf->virt; 7093 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7094 memset(pcmd, 0, sizeof(struct fc_rdp_res_frame)); 7095 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 7096 7097 /* Update Alarm and Warning */ 7098 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_ALARM_FLAGS); 7099 phba->sfp_alarm |= *flag_ptr; 7100 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_WARNING_FLAGS); 7101 phba->sfp_warning |= *flag_ptr; 7102 7103 /* For RDP payload */ 7104 len = 8; 7105 len += lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc *) 7106 (len + pcmd), ELS_CMD_RDP); 7107 7108 len += lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc *)(len + pcmd), 7109 rdp_context->page_a0, rdp_context->page_a2); 7110 len += lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc *)(len + pcmd), 7111 phba); 7112 len += lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc *) 7113 (len + pcmd), &rdp_context->link_stat); 7114 len += lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc *) 7115 (len + pcmd), vport); 7116 len += lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc *) 7117 (len + pcmd), vport, ndlp); 7118 len += lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc *)(len + pcmd), 7119 &rdp_context->link_stat); 7120 len += lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc *)(len + pcmd), 7121 &rdp_context->link_stat, vport); 7122 len += lpfc_rdp_res_oed_temp_desc(phba, 7123 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7124 rdp_context->page_a2); 7125 len += lpfc_rdp_res_oed_voltage_desc(phba, 7126 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7127 rdp_context->page_a2); 7128 len += lpfc_rdp_res_oed_txbias_desc(phba, 7129 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7130 rdp_context->page_a2); 7131 len += lpfc_rdp_res_oed_txpower_desc(phba, 7132 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7133 rdp_context->page_a2); 7134 len += lpfc_rdp_res_oed_rxpower_desc(phba, 7135 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7136 rdp_context->page_a2); 7137 len += lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc *)(len + pcmd), 7138 rdp_context->page_a0, vport); 7139 7140 rdp_res->length = cpu_to_be32(len - 8); 7141 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7142 7143 /* Now that we know the true size of the payload, update the BPL */ 7144 bpl = (struct ulp_bde64 *)elsiocb->bpl_dmabuf->virt; 7145 bpl->tus.f.bdeSize = len; 7146 bpl->tus.f.bdeFlags = 0; 7147 bpl->tus.w = le32_to_cpu(bpl->tus.w); 7148 7149 phba->fc_stat.elsXmitACC++; 7150 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7151 if (!elsiocb->ndlp) { 7152 lpfc_els_free_iocb(phba, elsiocb); 7153 goto free_rdp_context; 7154 } 7155 7156 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7157 if (rc == IOCB_ERROR) { 7158 lpfc_els_free_iocb(phba, elsiocb); 7159 lpfc_nlp_put(ndlp); 7160 } 7161 7162 goto free_rdp_context; 7163 7164 error: 7165 cmdsize = 2 * sizeof(uint32_t); 7166 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries, 7167 ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT); 7168 if (!elsiocb) 7169 goto free_rdp_context; 7170 7171 if (phba->sli_rev == LPFC_SLI_REV4) { 7172 wqe = &elsiocb->wqe; 7173 /* ox-id of the frame */ 7174 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7175 rdp_context->ox_id); 7176 bf_set(wqe_ctxt_tag, 7177 &wqe->xmit_els_rsp.wqe_com, 7178 rdp_context->rx_id); 7179 } else { 7180 icmd = &elsiocb->iocb; 7181 icmd->ulpContext = rdp_context->rx_id; 7182 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id; 7183 } 7184 7185 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7186 7187 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; 7188 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t)); 7189 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 7190 7191 phba->fc_stat.elsXmitLSRJT++; 7192 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7193 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7194 if (!elsiocb->ndlp) { 7195 lpfc_els_free_iocb(phba, elsiocb); 7196 goto free_rdp_context; 7197 } 7198 7199 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7200 if (rc == IOCB_ERROR) { 7201 lpfc_els_free_iocb(phba, elsiocb); 7202 lpfc_nlp_put(ndlp); 7203 } 7204 7205 free_rdp_context: 7206 /* This reference put is for the original unsolicited RDP. If the 7207 * prep failed, there is no reference to remove. 7208 */ 7209 lpfc_nlp_put(ndlp); 7210 kfree(rdp_context); 7211 } 7212 7213 static int 7214 lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context) 7215 { 7216 LPFC_MBOXQ_t *mbox = NULL; 7217 int rc; 7218 7219 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7220 if (!mbox) { 7221 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS, 7222 "7105 failed to allocate mailbox memory"); 7223 return 1; 7224 } 7225 7226 if (lpfc_sli4_dump_page_a0(phba, mbox)) 7227 goto rdp_fail; 7228 mbox->vport = rdp_context->ndlp->vport; 7229 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0; 7230 mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context; 7231 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 7232 if (rc == MBX_NOT_FINISHED) { 7233 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 7234 return 1; 7235 } 7236 7237 return 0; 7238 7239 rdp_fail: 7240 mempool_free(mbox, phba->mbox_mem_pool); 7241 return 1; 7242 } 7243 7244 int lpfc_get_sfp_info_wait(struct lpfc_hba *phba, 7245 struct lpfc_rdp_context *rdp_context) 7246 { 7247 LPFC_MBOXQ_t *mbox = NULL; 7248 int rc; 7249 struct lpfc_dmabuf *mp; 7250 struct lpfc_dmabuf *mpsave; 7251 void *virt; 7252 MAILBOX_t *mb; 7253 7254 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7255 if (!mbox) { 7256 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS, 7257 "7205 failed to allocate mailbox memory"); 7258 return 1; 7259 } 7260 7261 if (lpfc_sli4_dump_page_a0(phba, mbox)) 7262 goto sfp_fail; 7263 mp = mbox->ctx_buf; 7264 mpsave = mp; 7265 virt = mp->virt; 7266 if (phba->sli_rev < LPFC_SLI_REV4) { 7267 mb = &mbox->u.mb; 7268 mb->un.varDmp.cv = 1; 7269 mb->un.varDmp.co = 1; 7270 mb->un.varWords[2] = 0; 7271 mb->un.varWords[3] = DMP_SFF_PAGE_A0_SIZE / 4; 7272 mb->un.varWords[4] = 0; 7273 mb->un.varWords[5] = 0; 7274 mb->un.varWords[6] = 0; 7275 mb->un.varWords[7] = 0; 7276 mb->un.varWords[8] = 0; 7277 mb->un.varWords[9] = 0; 7278 mb->un.varWords[10] = 0; 7279 mbox->in_ext_byte_len = DMP_SFF_PAGE_A0_SIZE; 7280 mbox->out_ext_byte_len = DMP_SFF_PAGE_A0_SIZE; 7281 mbox->mbox_offset_word = 5; 7282 mbox->ctx_buf = virt; 7283 } else { 7284 bf_set(lpfc_mbx_memory_dump_type3_length, 7285 &mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A0_SIZE); 7286 mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys); 7287 mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys); 7288 } 7289 mbox->vport = phba->pport; 7290 mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context; 7291 7292 rc = lpfc_sli_issue_mbox_wait(phba, mbox, 30); 7293 if (rc == MBX_NOT_FINISHED) { 7294 rc = 1; 7295 goto error; 7296 } 7297 7298 if (phba->sli_rev == LPFC_SLI_REV4) 7299 mp = (struct lpfc_dmabuf *)(mbox->ctx_buf); 7300 else 7301 mp = mpsave; 7302 7303 if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) { 7304 rc = 1; 7305 goto error; 7306 } 7307 7308 lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a0, 7309 DMP_SFF_PAGE_A0_SIZE); 7310 7311 memset(mbox, 0, sizeof(*mbox)); 7312 memset(mp->virt, 0, DMP_SFF_PAGE_A2_SIZE); 7313 INIT_LIST_HEAD(&mp->list); 7314 7315 /* save address for completion */ 7316 mbox->ctx_buf = mp; 7317 mbox->vport = phba->pport; 7318 7319 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_DUMP_MEMORY); 7320 bf_set(lpfc_mbx_memory_dump_type3_type, 7321 &mbox->u.mqe.un.mem_dump_type3, DMP_LMSD); 7322 bf_set(lpfc_mbx_memory_dump_type3_link, 7323 &mbox->u.mqe.un.mem_dump_type3, phba->sli4_hba.physical_port); 7324 bf_set(lpfc_mbx_memory_dump_type3_page_no, 7325 &mbox->u.mqe.un.mem_dump_type3, DMP_PAGE_A2); 7326 if (phba->sli_rev < LPFC_SLI_REV4) { 7327 mb = &mbox->u.mb; 7328 mb->un.varDmp.cv = 1; 7329 mb->un.varDmp.co = 1; 7330 mb->un.varWords[2] = 0; 7331 mb->un.varWords[3] = DMP_SFF_PAGE_A2_SIZE / 4; 7332 mb->un.varWords[4] = 0; 7333 mb->un.varWords[5] = 0; 7334 mb->un.varWords[6] = 0; 7335 mb->un.varWords[7] = 0; 7336 mb->un.varWords[8] = 0; 7337 mb->un.varWords[9] = 0; 7338 mb->un.varWords[10] = 0; 7339 mbox->in_ext_byte_len = DMP_SFF_PAGE_A2_SIZE; 7340 mbox->out_ext_byte_len = DMP_SFF_PAGE_A2_SIZE; 7341 mbox->mbox_offset_word = 5; 7342 mbox->ctx_buf = virt; 7343 } else { 7344 bf_set(lpfc_mbx_memory_dump_type3_length, 7345 &mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A2_SIZE); 7346 mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys); 7347 mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys); 7348 } 7349 7350 mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context; 7351 rc = lpfc_sli_issue_mbox_wait(phba, mbox, 30); 7352 if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) { 7353 rc = 1; 7354 goto error; 7355 } 7356 rc = 0; 7357 7358 lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a2, 7359 DMP_SFF_PAGE_A2_SIZE); 7360 7361 error: 7362 mbox->ctx_buf = mpsave; 7363 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 7364 7365 return rc; 7366 7367 sfp_fail: 7368 mempool_free(mbox, phba->mbox_mem_pool); 7369 return 1; 7370 } 7371 7372 /* 7373 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS. 7374 * @vport: pointer to a host virtual N_Port data structure. 7375 * @cmdiocb: pointer to lpfc command iocb data structure. 7376 * @ndlp: pointer to a node-list data structure. 7377 * 7378 * This routine processes an unsolicited RDP(Read Diagnostic Parameters) 7379 * IOCB. First, the payload of the unsolicited RDP is checked. 7380 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3 7381 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2, 7382 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl 7383 * gather all data and send RDP response. 7384 * 7385 * Return code 7386 * 0 - Sent the acc response 7387 * 1 - Sent the reject response. 7388 */ 7389 static int 7390 lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 7391 struct lpfc_nodelist *ndlp) 7392 { 7393 struct lpfc_hba *phba = vport->phba; 7394 struct lpfc_dmabuf *pcmd; 7395 uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE; 7396 struct fc_rdp_req_frame *rdp_req; 7397 struct lpfc_rdp_context *rdp_context; 7398 union lpfc_wqe128 *cmd = NULL; 7399 struct ls_rjt stat; 7400 7401 if (phba->sli_rev < LPFC_SLI_REV4 || 7402 bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 7403 LPFC_SLI_INTF_IF_TYPE_2) { 7404 rjt_err = LSRJT_UNABLE_TPC; 7405 rjt_expl = LSEXP_REQ_UNSUPPORTED; 7406 goto error; 7407 } 7408 7409 if (phba->sli_rev < LPFC_SLI_REV4 || (phba->hba_flag & HBA_FCOE_MODE)) { 7410 rjt_err = LSRJT_UNABLE_TPC; 7411 rjt_expl = LSEXP_REQ_UNSUPPORTED; 7412 goto error; 7413 } 7414 7415 pcmd = cmdiocb->cmd_dmabuf; 7416 rdp_req = (struct fc_rdp_req_frame *) pcmd->virt; 7417 7418 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 7419 "2422 ELS RDP Request " 7420 "dec len %d tag x%x port_id %d len %d\n", 7421 be32_to_cpu(rdp_req->rdp_des_length), 7422 be32_to_cpu(rdp_req->nport_id_desc.tag), 7423 be32_to_cpu(rdp_req->nport_id_desc.nport_id), 7424 be32_to_cpu(rdp_req->nport_id_desc.length)); 7425 7426 if (sizeof(struct fc_rdp_nport_desc) != 7427 be32_to_cpu(rdp_req->rdp_des_length)) 7428 goto rjt_logerr; 7429 if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag)) 7430 goto rjt_logerr; 7431 if (RDP_NPORT_ID_SIZE != 7432 be32_to_cpu(rdp_req->nport_id_desc.length)) 7433 goto rjt_logerr; 7434 rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL); 7435 if (!rdp_context) { 7436 rjt_err = LSRJT_UNABLE_TPC; 7437 goto error; 7438 } 7439 7440 cmd = &cmdiocb->wqe; 7441 rdp_context->ndlp = lpfc_nlp_get(ndlp); 7442 if (!rdp_context->ndlp) { 7443 kfree(rdp_context); 7444 rjt_err = LSRJT_UNABLE_TPC; 7445 goto error; 7446 } 7447 rdp_context->ox_id = bf_get(wqe_rcvoxid, 7448 &cmd->xmit_els_rsp.wqe_com); 7449 rdp_context->rx_id = bf_get(wqe_ctxt_tag, 7450 &cmd->xmit_els_rsp.wqe_com); 7451 rdp_context->cmpl = lpfc_els_rdp_cmpl; 7452 if (lpfc_get_rdp_info(phba, rdp_context)) { 7453 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS, 7454 "2423 Unable to send mailbox"); 7455 kfree(rdp_context); 7456 rjt_err = LSRJT_UNABLE_TPC; 7457 lpfc_nlp_put(ndlp); 7458 goto error; 7459 } 7460 7461 return 0; 7462 7463 rjt_logerr: 7464 rjt_err = LSRJT_LOGICAL_ERR; 7465 7466 error: 7467 memset(&stat, 0, sizeof(stat)); 7468 stat.un.b.lsRjtRsnCode = rjt_err; 7469 stat.un.b.lsRjtRsnCodeExp = rjt_expl; 7470 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 7471 return 1; 7472 } 7473 7474 7475 static void 7476 lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 7477 { 7478 MAILBOX_t *mb; 7479 IOCB_t *icmd; 7480 union lpfc_wqe128 *wqe; 7481 uint8_t *pcmd; 7482 struct lpfc_iocbq *elsiocb; 7483 struct lpfc_nodelist *ndlp; 7484 struct ls_rjt *stat; 7485 union lpfc_sli4_cfg_shdr *shdr; 7486 struct lpfc_lcb_context *lcb_context; 7487 struct fc_lcb_res_frame *lcb_res; 7488 uint32_t cmdsize, shdr_status, shdr_add_status; 7489 int rc; 7490 7491 mb = &pmb->u.mb; 7492 lcb_context = (struct lpfc_lcb_context *)pmb->ctx_ndlp; 7493 ndlp = lcb_context->ndlp; 7494 pmb->ctx_ndlp = NULL; 7495 pmb->ctx_buf = NULL; 7496 7497 shdr = (union lpfc_sli4_cfg_shdr *) 7498 &pmb->u.mqe.un.beacon_config.header.cfg_shdr; 7499 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7500 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7501 7502 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX, 7503 "0194 SET_BEACON_CONFIG mailbox " 7504 "completed with status x%x add_status x%x," 7505 " mbx status x%x\n", 7506 shdr_status, shdr_add_status, mb->mbxStatus); 7507 7508 if ((mb->mbxStatus != MBX_SUCCESS) || shdr_status || 7509 (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE) || 7510 (shdr_add_status == ADD_STATUS_INVALID_REQUEST)) { 7511 mempool_free(pmb, phba->mbox_mem_pool); 7512 goto error; 7513 } 7514 7515 mempool_free(pmb, phba->mbox_mem_pool); 7516 cmdsize = sizeof(struct fc_lcb_res_frame); 7517 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 7518 lpfc_max_els_tries, ndlp, 7519 ndlp->nlp_DID, ELS_CMD_ACC); 7520 7521 /* Decrement the ndlp reference count from previous mbox command */ 7522 lpfc_nlp_put(ndlp); 7523 7524 if (!elsiocb) 7525 goto free_lcb_context; 7526 7527 lcb_res = (struct fc_lcb_res_frame *)elsiocb->cmd_dmabuf->virt; 7528 7529 memset(lcb_res, 0, sizeof(struct fc_lcb_res_frame)); 7530 7531 if (phba->sli_rev == LPFC_SLI_REV4) { 7532 wqe = &elsiocb->wqe; 7533 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, lcb_context->rx_id); 7534 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7535 lcb_context->ox_id); 7536 } else { 7537 icmd = &elsiocb->iocb; 7538 icmd->ulpContext = lcb_context->rx_id; 7539 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id; 7540 } 7541 7542 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7543 *((uint32_t *)(pcmd)) = ELS_CMD_ACC; 7544 lcb_res->lcb_sub_command = lcb_context->sub_command; 7545 lcb_res->lcb_type = lcb_context->type; 7546 lcb_res->capability = lcb_context->capability; 7547 lcb_res->lcb_frequency = lcb_context->frequency; 7548 lcb_res->lcb_duration = lcb_context->duration; 7549 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7550 phba->fc_stat.elsXmitACC++; 7551 7552 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7553 if (!elsiocb->ndlp) { 7554 lpfc_els_free_iocb(phba, elsiocb); 7555 goto out; 7556 } 7557 7558 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7559 if (rc == IOCB_ERROR) { 7560 lpfc_els_free_iocb(phba, elsiocb); 7561 lpfc_nlp_put(ndlp); 7562 } 7563 out: 7564 kfree(lcb_context); 7565 return; 7566 7567 error: 7568 cmdsize = sizeof(struct fc_lcb_res_frame); 7569 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 7570 lpfc_max_els_tries, ndlp, 7571 ndlp->nlp_DID, ELS_CMD_LS_RJT); 7572 lpfc_nlp_put(ndlp); 7573 if (!elsiocb) 7574 goto free_lcb_context; 7575 7576 if (phba->sli_rev == LPFC_SLI_REV4) { 7577 wqe = &elsiocb->wqe; 7578 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, lcb_context->rx_id); 7579 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7580 lcb_context->ox_id); 7581 } else { 7582 icmd = &elsiocb->iocb; 7583 icmd->ulpContext = lcb_context->rx_id; 7584 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id; 7585 } 7586 7587 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7588 7589 *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT; 7590 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t)); 7591 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 7592 7593 if (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE) 7594 stat->un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 7595 7596 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7597 phba->fc_stat.elsXmitLSRJT++; 7598 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7599 if (!elsiocb->ndlp) { 7600 lpfc_els_free_iocb(phba, elsiocb); 7601 goto free_lcb_context; 7602 } 7603 7604 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7605 if (rc == IOCB_ERROR) { 7606 lpfc_els_free_iocb(phba, elsiocb); 7607 lpfc_nlp_put(ndlp); 7608 } 7609 free_lcb_context: 7610 kfree(lcb_context); 7611 } 7612 7613 static int 7614 lpfc_sli4_set_beacon(struct lpfc_vport *vport, 7615 struct lpfc_lcb_context *lcb_context, 7616 uint32_t beacon_state) 7617 { 7618 struct lpfc_hba *phba = vport->phba; 7619 union lpfc_sli4_cfg_shdr *cfg_shdr; 7620 LPFC_MBOXQ_t *mbox = NULL; 7621 uint32_t len; 7622 int rc; 7623 7624 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7625 if (!mbox) 7626 return 1; 7627 7628 cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr; 7629 len = sizeof(struct lpfc_mbx_set_beacon_config) - 7630 sizeof(struct lpfc_sli4_cfg_mhdr); 7631 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, 7632 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len, 7633 LPFC_SLI4_MBX_EMBED); 7634 mbox->ctx_ndlp = (void *)lcb_context; 7635 mbox->vport = phba->pport; 7636 mbox->mbox_cmpl = lpfc_els_lcb_rsp; 7637 bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config, 7638 phba->sli4_hba.physical_port); 7639 bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config, 7640 beacon_state); 7641 mbox->u.mqe.un.beacon_config.word5 = 0; /* Reserved */ 7642 7643 /* 7644 * Check bv1s bit before issuing the mailbox 7645 * if bv1s == 1, LCB V1 supported 7646 * else, LCB V0 supported 7647 */ 7648 7649 if (phba->sli4_hba.pc_sli4_params.bv1s) { 7650 /* COMMON_SET_BEACON_CONFIG_V1 */ 7651 cfg_shdr->request.word9 = BEACON_VERSION_V1; 7652 lcb_context->capability |= LCB_CAPABILITY_DURATION; 7653 bf_set(lpfc_mbx_set_beacon_port_type, 7654 &mbox->u.mqe.un.beacon_config, 0); 7655 bf_set(lpfc_mbx_set_beacon_duration_v1, 7656 &mbox->u.mqe.un.beacon_config, 7657 be16_to_cpu(lcb_context->duration)); 7658 } else { 7659 /* COMMON_SET_BEACON_CONFIG_V0 */ 7660 if (be16_to_cpu(lcb_context->duration) != 0) { 7661 mempool_free(mbox, phba->mbox_mem_pool); 7662 return 1; 7663 } 7664 cfg_shdr->request.word9 = BEACON_VERSION_V0; 7665 lcb_context->capability &= ~(LCB_CAPABILITY_DURATION); 7666 bf_set(lpfc_mbx_set_beacon_state, 7667 &mbox->u.mqe.un.beacon_config, beacon_state); 7668 bf_set(lpfc_mbx_set_beacon_port_type, 7669 &mbox->u.mqe.un.beacon_config, 1); 7670 bf_set(lpfc_mbx_set_beacon_duration, 7671 &mbox->u.mqe.un.beacon_config, 7672 be16_to_cpu(lcb_context->duration)); 7673 } 7674 7675 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 7676 if (rc == MBX_NOT_FINISHED) { 7677 mempool_free(mbox, phba->mbox_mem_pool); 7678 return 1; 7679 } 7680 7681 return 0; 7682 } 7683 7684 7685 /** 7686 * lpfc_els_rcv_lcb - Process an unsolicited LCB 7687 * @vport: pointer to a host virtual N_Port data structure. 7688 * @cmdiocb: pointer to lpfc command iocb data structure. 7689 * @ndlp: pointer to a node-list data structure. 7690 * 7691 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB. 7692 * First, the payload of the unsolicited LCB is checked. 7693 * Then based on Subcommand beacon will either turn on or off. 7694 * 7695 * Return code 7696 * 0 - Sent the acc response 7697 * 1 - Sent the reject response. 7698 **/ 7699 static int 7700 lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 7701 struct lpfc_nodelist *ndlp) 7702 { 7703 struct lpfc_hba *phba = vport->phba; 7704 struct lpfc_dmabuf *pcmd; 7705 uint8_t *lp; 7706 struct fc_lcb_request_frame *beacon; 7707 struct lpfc_lcb_context *lcb_context; 7708 u8 state, rjt_err = 0; 7709 struct ls_rjt stat; 7710 7711 pcmd = cmdiocb->cmd_dmabuf; 7712 lp = (uint8_t *)pcmd->virt; 7713 beacon = (struct fc_lcb_request_frame *)pcmd->virt; 7714 7715 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 7716 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x " 7717 "type x%x frequency %x duration x%x\n", 7718 lp[0], lp[1], lp[2], 7719 beacon->lcb_command, 7720 beacon->lcb_sub_command, 7721 beacon->lcb_type, 7722 beacon->lcb_frequency, 7723 be16_to_cpu(beacon->lcb_duration)); 7724 7725 if (beacon->lcb_sub_command != LPFC_LCB_ON && 7726 beacon->lcb_sub_command != LPFC_LCB_OFF) { 7727 rjt_err = LSRJT_CMD_UNSUPPORTED; 7728 goto rjt; 7729 } 7730 7731 if (phba->sli_rev < LPFC_SLI_REV4 || 7732 phba->hba_flag & HBA_FCOE_MODE || 7733 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 7734 LPFC_SLI_INTF_IF_TYPE_2)) { 7735 rjt_err = LSRJT_CMD_UNSUPPORTED; 7736 goto rjt; 7737 } 7738 7739 lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL); 7740 if (!lcb_context) { 7741 rjt_err = LSRJT_UNABLE_TPC; 7742 goto rjt; 7743 } 7744 7745 state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0; 7746 lcb_context->sub_command = beacon->lcb_sub_command; 7747 lcb_context->capability = 0; 7748 lcb_context->type = beacon->lcb_type; 7749 lcb_context->frequency = beacon->lcb_frequency; 7750 lcb_context->duration = beacon->lcb_duration; 7751 lcb_context->ox_id = get_job_rcvoxid(phba, cmdiocb); 7752 lcb_context->rx_id = get_job_ulpcontext(phba, cmdiocb); 7753 lcb_context->ndlp = lpfc_nlp_get(ndlp); 7754 if (!lcb_context->ndlp) { 7755 rjt_err = LSRJT_UNABLE_TPC; 7756 goto rjt_free; 7757 } 7758 7759 if (lpfc_sli4_set_beacon(vport, lcb_context, state)) { 7760 lpfc_printf_vlog(ndlp->vport, KERN_ERR, LOG_TRACE_EVENT, 7761 "0193 failed to send mail box"); 7762 lpfc_nlp_put(ndlp); 7763 rjt_err = LSRJT_UNABLE_TPC; 7764 goto rjt_free; 7765 } 7766 return 0; 7767 7768 rjt_free: 7769 kfree(lcb_context); 7770 rjt: 7771 memset(&stat, 0, sizeof(stat)); 7772 stat.un.b.lsRjtRsnCode = rjt_err; 7773 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 7774 return 1; 7775 } 7776 7777 7778 /** 7779 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport 7780 * @vport: pointer to a host virtual N_Port data structure. 7781 * 7782 * This routine cleans up any Registration State Change Notification 7783 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the 7784 * @vport together with the host_lock is used to prevent multiple thread 7785 * trying to access the RSCN array on a same @vport at the same time. 7786 **/ 7787 void 7788 lpfc_els_flush_rscn(struct lpfc_vport *vport) 7789 { 7790 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7791 struct lpfc_hba *phba = vport->phba; 7792 int i; 7793 7794 spin_lock_irq(shost->host_lock); 7795 if (vport->fc_rscn_flush) { 7796 /* Another thread is walking fc_rscn_id_list on this vport */ 7797 spin_unlock_irq(shost->host_lock); 7798 return; 7799 } 7800 /* Indicate we are walking lpfc_els_flush_rscn on this vport */ 7801 vport->fc_rscn_flush = 1; 7802 spin_unlock_irq(shost->host_lock); 7803 7804 for (i = 0; i < vport->fc_rscn_id_cnt; i++) { 7805 lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); 7806 vport->fc_rscn_id_list[i] = NULL; 7807 } 7808 spin_lock_irq(shost->host_lock); 7809 vport->fc_rscn_id_cnt = 0; 7810 vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY); 7811 spin_unlock_irq(shost->host_lock); 7812 lpfc_can_disctmo(vport); 7813 /* Indicate we are done walking this fc_rscn_id_list */ 7814 vport->fc_rscn_flush = 0; 7815 } 7816 7817 /** 7818 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did 7819 * @vport: pointer to a host virtual N_Port data structure. 7820 * @did: remote destination port identifier. 7821 * 7822 * This routine checks whether there is any pending Registration State 7823 * Configuration Notification (RSCN) to a @did on @vport. 7824 * 7825 * Return code 7826 * None zero - The @did matched with a pending rscn 7827 * 0 - not able to match @did with a pending rscn 7828 **/ 7829 int 7830 lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) 7831 { 7832 D_ID ns_did; 7833 D_ID rscn_did; 7834 uint32_t *lp; 7835 uint32_t payload_len, i; 7836 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7837 7838 ns_did.un.word = did; 7839 7840 /* Never match fabric nodes for RSCNs */ 7841 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) 7842 return 0; 7843 7844 /* If we are doing a FULL RSCN rediscovery, match everything */ 7845 if (vport->fc_flag & FC_RSCN_DISCOVERY) 7846 return did; 7847 7848 spin_lock_irq(shost->host_lock); 7849 if (vport->fc_rscn_flush) { 7850 /* Another thread is walking fc_rscn_id_list on this vport */ 7851 spin_unlock_irq(shost->host_lock); 7852 return 0; 7853 } 7854 /* Indicate we are walking fc_rscn_id_list on this vport */ 7855 vport->fc_rscn_flush = 1; 7856 spin_unlock_irq(shost->host_lock); 7857 for (i = 0; i < vport->fc_rscn_id_cnt; i++) { 7858 lp = vport->fc_rscn_id_list[i]->virt; 7859 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); 7860 payload_len -= sizeof(uint32_t); /* take off word 0 */ 7861 while (payload_len) { 7862 rscn_did.un.word = be32_to_cpu(*lp++); 7863 payload_len -= sizeof(uint32_t); 7864 switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) { 7865 case RSCN_ADDRESS_FORMAT_PORT: 7866 if ((ns_did.un.b.domain == rscn_did.un.b.domain) 7867 && (ns_did.un.b.area == rscn_did.un.b.area) 7868 && (ns_did.un.b.id == rscn_did.un.b.id)) 7869 goto return_did_out; 7870 break; 7871 case RSCN_ADDRESS_FORMAT_AREA: 7872 if ((ns_did.un.b.domain == rscn_did.un.b.domain) 7873 && (ns_did.un.b.area == rscn_did.un.b.area)) 7874 goto return_did_out; 7875 break; 7876 case RSCN_ADDRESS_FORMAT_DOMAIN: 7877 if (ns_did.un.b.domain == rscn_did.un.b.domain) 7878 goto return_did_out; 7879 break; 7880 case RSCN_ADDRESS_FORMAT_FABRIC: 7881 goto return_did_out; 7882 } 7883 } 7884 } 7885 /* Indicate we are done with walking fc_rscn_id_list on this vport */ 7886 vport->fc_rscn_flush = 0; 7887 return 0; 7888 return_did_out: 7889 /* Indicate we are done with walking fc_rscn_id_list on this vport */ 7890 vport->fc_rscn_flush = 0; 7891 return did; 7892 } 7893 7894 /** 7895 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn 7896 * @vport: pointer to a host virtual N_Port data structure. 7897 * 7898 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the 7899 * state machine for a @vport's nodes that are with pending RSCN (Registration 7900 * State Change Notification). 7901 * 7902 * Return code 7903 * 0 - Successful (currently alway return 0) 7904 **/ 7905 static int 7906 lpfc_rscn_recovery_check(struct lpfc_vport *vport) 7907 { 7908 struct lpfc_nodelist *ndlp = NULL, *n; 7909 7910 /* Move all affected nodes by pending RSCNs to NPR state. */ 7911 list_for_each_entry_safe(ndlp, n, &vport->fc_nodes, nlp_listp) { 7912 if ((ndlp->nlp_state == NLP_STE_UNUSED_NODE) || 7913 !lpfc_rscn_payload_check(vport, ndlp->nlp_DID)) 7914 continue; 7915 7916 /* NVME Target mode does not do RSCN Recovery. */ 7917 if (vport->phba->nvmet_support) 7918 continue; 7919 7920 /* If we are in the process of doing discovery on this 7921 * NPort, let it continue on its own. 7922 */ 7923 switch (ndlp->nlp_state) { 7924 case NLP_STE_PLOGI_ISSUE: 7925 case NLP_STE_ADISC_ISSUE: 7926 case NLP_STE_REG_LOGIN_ISSUE: 7927 case NLP_STE_PRLI_ISSUE: 7928 case NLP_STE_LOGO_ISSUE: 7929 continue; 7930 } 7931 7932 lpfc_disc_state_machine(vport, ndlp, NULL, 7933 NLP_EVT_DEVICE_RECOVERY); 7934 lpfc_cancel_retry_delay_tmo(vport, ndlp); 7935 } 7936 return 0; 7937 } 7938 7939 /** 7940 * lpfc_send_rscn_event - Send an RSCN event to management application 7941 * @vport: pointer to a host virtual N_Port data structure. 7942 * @cmdiocb: pointer to lpfc command iocb data structure. 7943 * 7944 * lpfc_send_rscn_event sends an RSCN netlink event to management 7945 * applications. 7946 */ 7947 static void 7948 lpfc_send_rscn_event(struct lpfc_vport *vport, 7949 struct lpfc_iocbq *cmdiocb) 7950 { 7951 struct lpfc_dmabuf *pcmd; 7952 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7953 uint32_t *payload_ptr; 7954 uint32_t payload_len; 7955 struct lpfc_rscn_event_header *rscn_event_data; 7956 7957 pcmd = cmdiocb->cmd_dmabuf; 7958 payload_ptr = (uint32_t *) pcmd->virt; 7959 payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK); 7960 7961 rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) + 7962 payload_len, GFP_KERNEL); 7963 if (!rscn_event_data) { 7964 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 7965 "0147 Failed to allocate memory for RSCN event\n"); 7966 return; 7967 } 7968 rscn_event_data->event_type = FC_REG_RSCN_EVENT; 7969 rscn_event_data->payload_length = payload_len; 7970 memcpy(rscn_event_data->rscn_payload, payload_ptr, 7971 payload_len); 7972 7973 fc_host_post_vendor_event(shost, 7974 fc_get_event_number(), 7975 sizeof(struct lpfc_rscn_event_header) + payload_len, 7976 (char *)rscn_event_data, 7977 LPFC_NL_VENDOR_ID); 7978 7979 kfree(rscn_event_data); 7980 } 7981 7982 /** 7983 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb 7984 * @vport: pointer to a host virtual N_Port data structure. 7985 * @cmdiocb: pointer to lpfc command iocb data structure. 7986 * @ndlp: pointer to a node-list data structure. 7987 * 7988 * This routine processes an unsolicited RSCN (Registration State Change 7989 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked 7990 * to invoke fc_host_post_event() routine to the FC transport layer. If the 7991 * discover state machine is about to begin discovery, it just accepts the 7992 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only 7993 * contains N_Port IDs for other vports on this HBA, it just accepts the 7994 * RSCN and ignore processing it. If the state machine is in the recovery 7995 * state, the fc_rscn_id_list of this @vport is walked and the 7996 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for 7997 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn() 7998 * routine is invoked to handle the RSCN event. 7999 * 8000 * Return code 8001 * 0 - Just sent the acc response 8002 * 1 - Sent the acc response and waited for name server completion 8003 **/ 8004 static int 8005 lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8006 struct lpfc_nodelist *ndlp) 8007 { 8008 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8009 struct lpfc_hba *phba = vport->phba; 8010 struct lpfc_dmabuf *pcmd; 8011 uint32_t *lp, *datap; 8012 uint32_t payload_len, length, nportid, *cmd; 8013 int rscn_cnt; 8014 int rscn_id = 0, hba_id = 0; 8015 int i, tmo; 8016 8017 pcmd = cmdiocb->cmd_dmabuf; 8018 lp = (uint32_t *) pcmd->virt; 8019 8020 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); 8021 payload_len -= sizeof(uint32_t); /* take off word 0 */ 8022 /* RSCN received */ 8023 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8024 "0214 RSCN received Data: x%x x%x x%x x%x\n", 8025 vport->fc_flag, payload_len, *lp, 8026 vport->fc_rscn_id_cnt); 8027 8028 /* Send an RSCN event to the management application */ 8029 lpfc_send_rscn_event(vport, cmdiocb); 8030 8031 for (i = 0; i < payload_len/sizeof(uint32_t); i++) 8032 fc_host_post_event(shost, fc_get_event_number(), 8033 FCH_EVT_RSCN, lp[i]); 8034 8035 /* Check if RSCN is coming from a direct-connected remote NPort */ 8036 if (vport->fc_flag & FC_PT2PT) { 8037 /* If so, just ACC it, no other action needed for now */ 8038 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 8039 "2024 pt2pt RSCN %08x Data: x%x x%x\n", 8040 *lp, vport->fc_flag, payload_len); 8041 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8042 8043 /* Check to see if we need to NVME rescan this target 8044 * remoteport. 8045 */ 8046 if (ndlp->nlp_fc4_type & NLP_FC4_NVME && 8047 ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY)) 8048 lpfc_nvme_rescan_port(vport, ndlp); 8049 return 0; 8050 } 8051 8052 /* If we are about to begin discovery, just ACC the RSCN. 8053 * Discovery processing will satisfy it. 8054 */ 8055 if (vport->port_state <= LPFC_NS_QRY) { 8056 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8057 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x", 8058 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); 8059 8060 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8061 return 0; 8062 } 8063 8064 /* If this RSCN just contains NPortIDs for other vports on this HBA, 8065 * just ACC and ignore it. 8066 */ 8067 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 8068 !(vport->cfg_peer_port_login)) { 8069 i = payload_len; 8070 datap = lp; 8071 while (i > 0) { 8072 nportid = *datap++; 8073 nportid = ((be32_to_cpu(nportid)) & Mask_DID); 8074 i -= sizeof(uint32_t); 8075 rscn_id++; 8076 if (lpfc_find_vport_by_did(phba, nportid)) 8077 hba_id++; 8078 } 8079 if (rscn_id == hba_id) { 8080 /* ALL NPortIDs in RSCN are on HBA */ 8081 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8082 "0219 Ignore RSCN " 8083 "Data: x%x x%x x%x x%x\n", 8084 vport->fc_flag, payload_len, 8085 *lp, vport->fc_rscn_id_cnt); 8086 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8087 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x", 8088 ndlp->nlp_DID, vport->port_state, 8089 ndlp->nlp_flag); 8090 8091 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, 8092 ndlp, NULL); 8093 /* Restart disctmo if its already running */ 8094 if (vport->fc_flag & FC_DISC_TMO) { 8095 tmo = ((phba->fc_ratov * 3) + 3); 8096 mod_timer(&vport->fc_disctmo, 8097 jiffies + 8098 msecs_to_jiffies(1000 * tmo)); 8099 } 8100 return 0; 8101 } 8102 } 8103 8104 spin_lock_irq(shost->host_lock); 8105 if (vport->fc_rscn_flush) { 8106 /* Another thread is walking fc_rscn_id_list on this vport */ 8107 vport->fc_flag |= FC_RSCN_DISCOVERY; 8108 spin_unlock_irq(shost->host_lock); 8109 /* Send back ACC */ 8110 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8111 return 0; 8112 } 8113 /* Indicate we are walking fc_rscn_id_list on this vport */ 8114 vport->fc_rscn_flush = 1; 8115 spin_unlock_irq(shost->host_lock); 8116 /* Get the array count after successfully have the token */ 8117 rscn_cnt = vport->fc_rscn_id_cnt; 8118 /* If we are already processing an RSCN, save the received 8119 * RSCN payload buffer, cmdiocb->cmd_dmabuf to process later. 8120 */ 8121 if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) { 8122 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8123 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x", 8124 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); 8125 8126 spin_lock_irq(shost->host_lock); 8127 vport->fc_flag |= FC_RSCN_DEFERRED; 8128 8129 /* Restart disctmo if its already running */ 8130 if (vport->fc_flag & FC_DISC_TMO) { 8131 tmo = ((phba->fc_ratov * 3) + 3); 8132 mod_timer(&vport->fc_disctmo, 8133 jiffies + msecs_to_jiffies(1000 * tmo)); 8134 } 8135 if ((rscn_cnt < FC_MAX_HOLD_RSCN) && 8136 !(vport->fc_flag & FC_RSCN_DISCOVERY)) { 8137 vport->fc_flag |= FC_RSCN_MODE; 8138 spin_unlock_irq(shost->host_lock); 8139 if (rscn_cnt) { 8140 cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; 8141 length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); 8142 } 8143 if ((rscn_cnt) && 8144 (payload_len + length <= LPFC_BPL_SIZE)) { 8145 *cmd &= ELS_CMD_MASK; 8146 *cmd |= cpu_to_be32(payload_len + length); 8147 memcpy(((uint8_t *)cmd) + length, lp, 8148 payload_len); 8149 } else { 8150 vport->fc_rscn_id_list[rscn_cnt] = pcmd; 8151 vport->fc_rscn_id_cnt++; 8152 /* If we zero, cmdiocb->cmd_dmabuf, the calling 8153 * routine will not try to free it. 8154 */ 8155 cmdiocb->cmd_dmabuf = NULL; 8156 } 8157 /* Deferred RSCN */ 8158 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8159 "0235 Deferred RSCN " 8160 "Data: x%x x%x x%x\n", 8161 vport->fc_rscn_id_cnt, vport->fc_flag, 8162 vport->port_state); 8163 } else { 8164 vport->fc_flag |= FC_RSCN_DISCOVERY; 8165 spin_unlock_irq(shost->host_lock); 8166 /* ReDiscovery RSCN */ 8167 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8168 "0234 ReDiscovery RSCN " 8169 "Data: x%x x%x x%x\n", 8170 vport->fc_rscn_id_cnt, vport->fc_flag, 8171 vport->port_state); 8172 } 8173 /* Indicate we are done walking fc_rscn_id_list on this vport */ 8174 vport->fc_rscn_flush = 0; 8175 /* Send back ACC */ 8176 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8177 /* send RECOVERY event for ALL nodes that match RSCN payload */ 8178 lpfc_rscn_recovery_check(vport); 8179 return 0; 8180 } 8181 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8182 "RCV RSCN: did:x%x/ste:x%x flg:x%x", 8183 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); 8184 8185 spin_lock_irq(shost->host_lock); 8186 vport->fc_flag |= FC_RSCN_MODE; 8187 spin_unlock_irq(shost->host_lock); 8188 vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; 8189 /* Indicate we are done walking fc_rscn_id_list on this vport */ 8190 vport->fc_rscn_flush = 0; 8191 /* 8192 * If we zero, cmdiocb->cmd_dmabuf, the calling routine will 8193 * not try to free it. 8194 */ 8195 cmdiocb->cmd_dmabuf = NULL; 8196 lpfc_set_disctmo(vport); 8197 /* Send back ACC */ 8198 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8199 /* send RECOVERY event for ALL nodes that match RSCN payload */ 8200 lpfc_rscn_recovery_check(vport); 8201 return lpfc_els_handle_rscn(vport); 8202 } 8203 8204 /** 8205 * lpfc_els_handle_rscn - Handle rscn for a vport 8206 * @vport: pointer to a host virtual N_Port data structure. 8207 * 8208 * This routine handles the Registration State Configuration Notification 8209 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall 8210 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise, 8211 * if the ndlp to NameServer exists, a Common Transport (CT) command to the 8212 * NameServer shall be issued. If CT command to the NameServer fails to be 8213 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any 8214 * RSCN activities with the @vport. 8215 * 8216 * Return code 8217 * 0 - Cleaned up rscn on the @vport 8218 * 1 - Wait for plogi to name server before proceed 8219 **/ 8220 int 8221 lpfc_els_handle_rscn(struct lpfc_vport *vport) 8222 { 8223 struct lpfc_nodelist *ndlp; 8224 struct lpfc_hba *phba = vport->phba; 8225 8226 /* Ignore RSCN if the port is being torn down. */ 8227 if (vport->load_flag & FC_UNLOADING) { 8228 lpfc_els_flush_rscn(vport); 8229 return 0; 8230 } 8231 8232 /* Start timer for RSCN processing */ 8233 lpfc_set_disctmo(vport); 8234 8235 /* RSCN processed */ 8236 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8237 "0215 RSCN processed Data: x%x x%x x%x x%x x%x x%x\n", 8238 vport->fc_flag, 0, vport->fc_rscn_id_cnt, 8239 vport->port_state, vport->num_disc_nodes, 8240 vport->gidft_inp); 8241 8242 /* To process RSCN, first compare RSCN data with NameServer */ 8243 vport->fc_ns_retry = 0; 8244 vport->num_disc_nodes = 0; 8245 8246 ndlp = lpfc_findnode_did(vport, NameServer_DID); 8247 if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { 8248 /* Good ndlp, issue CT Request to NameServer. Need to 8249 * know how many gidfts were issued. If none, then just 8250 * flush the RSCN. Otherwise, the outstanding requests 8251 * need to complete. 8252 */ 8253 if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_FT) { 8254 if (lpfc_issue_gidft(vport) > 0) 8255 return 1; 8256 } else if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_PT) { 8257 if (lpfc_issue_gidpt(vport) > 0) 8258 return 1; 8259 } else { 8260 return 1; 8261 } 8262 } else { 8263 /* Nameserver login in question. Revalidate. */ 8264 if (ndlp) { 8265 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; 8266 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 8267 } else { 8268 ndlp = lpfc_nlp_init(vport, NameServer_DID); 8269 if (!ndlp) { 8270 lpfc_els_flush_rscn(vport); 8271 return 0; 8272 } 8273 ndlp->nlp_prev_state = ndlp->nlp_state; 8274 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 8275 } 8276 ndlp->nlp_type |= NLP_FABRIC; 8277 lpfc_issue_els_plogi(vport, NameServer_DID, 0); 8278 /* Wait for NameServer login cmpl before we can 8279 * continue 8280 */ 8281 return 1; 8282 } 8283 8284 lpfc_els_flush_rscn(vport); 8285 return 0; 8286 } 8287 8288 /** 8289 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb 8290 * @vport: pointer to a host virtual N_Port data structure. 8291 * @cmdiocb: pointer to lpfc command iocb data structure. 8292 * @ndlp: pointer to a node-list data structure. 8293 * 8294 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS 8295 * unsolicited event. An unsolicited FLOGI can be received in a point-to- 8296 * point topology. As an unsolicited FLOGI should not be received in a loop 8297 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The 8298 * lpfc_check_sparm() routine is invoked to check the parameters in the 8299 * unsolicited FLOGI. If parameters validation failed, the routine 8300 * lpfc_els_rsp_reject() shall be called with reject reason code set to 8301 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the 8302 * FLOGI shall be compared with the Port WWN of the @vport to determine who 8303 * will initiate PLOGI. The higher lexicographical value party shall has 8304 * higher priority (as the winning port) and will initiate PLOGI and 8305 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result 8306 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI 8307 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI. 8308 * 8309 * Return code 8310 * 0 - Successfully processed the unsolicited flogi 8311 * 1 - Failed to process the unsolicited flogi 8312 **/ 8313 static int 8314 lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8315 struct lpfc_nodelist *ndlp) 8316 { 8317 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8318 struct lpfc_hba *phba = vport->phba; 8319 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 8320 uint32_t *lp = (uint32_t *) pcmd->virt; 8321 union lpfc_wqe128 *wqe = &cmdiocb->wqe; 8322 struct serv_parm *sp; 8323 LPFC_MBOXQ_t *mbox; 8324 uint32_t cmd, did; 8325 int rc; 8326 uint32_t fc_flag = 0; 8327 uint32_t port_state = 0; 8328 8329 /* Clear external loopback plug detected flag */ 8330 phba->link_flag &= ~LS_EXTERNAL_LOOPBACK; 8331 8332 cmd = *lp++; 8333 sp = (struct serv_parm *) lp; 8334 8335 /* FLOGI received */ 8336 8337 lpfc_set_disctmo(vport); 8338 8339 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 8340 /* We should never receive a FLOGI in loop mode, ignore it */ 8341 did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest); 8342 8343 /* An FLOGI ELS command <elsCmd> was received from DID <did> in 8344 Loop Mode */ 8345 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 8346 "0113 An FLOGI ELS command x%x was " 8347 "received from DID x%x in Loop Mode\n", 8348 cmd, did); 8349 return 1; 8350 } 8351 8352 (void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1); 8353 8354 /* 8355 * If our portname is greater than the remote portname, 8356 * then we initiate Nport login. 8357 */ 8358 8359 rc = memcmp(&vport->fc_portname, &sp->portName, 8360 sizeof(struct lpfc_name)); 8361 8362 if (!rc) { 8363 if (phba->sli_rev < LPFC_SLI_REV4) { 8364 mbox = mempool_alloc(phba->mbox_mem_pool, 8365 GFP_KERNEL); 8366 if (!mbox) 8367 return 1; 8368 lpfc_linkdown(phba); 8369 lpfc_init_link(phba, mbox, 8370 phba->cfg_topology, 8371 phba->cfg_link_speed); 8372 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 8373 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 8374 mbox->vport = vport; 8375 rc = lpfc_sli_issue_mbox(phba, mbox, 8376 MBX_NOWAIT); 8377 lpfc_set_loopback_flag(phba); 8378 if (rc == MBX_NOT_FINISHED) 8379 mempool_free(mbox, phba->mbox_mem_pool); 8380 return 1; 8381 } 8382 8383 /* External loopback plug insertion detected */ 8384 phba->link_flag |= LS_EXTERNAL_LOOPBACK; 8385 8386 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_LIBDFC, 8387 "1119 External Loopback plug detected\n"); 8388 8389 /* abort the flogi coming back to ourselves 8390 * due to external loopback on the port. 8391 */ 8392 lpfc_els_abort_flogi(phba); 8393 return 0; 8394 8395 } else if (rc > 0) { /* greater than */ 8396 spin_lock_irq(shost->host_lock); 8397 vport->fc_flag |= FC_PT2PT_PLOGI; 8398 spin_unlock_irq(shost->host_lock); 8399 8400 /* If we have the high WWPN we can assign our own 8401 * myDID; otherwise, we have to WAIT for a PLOGI 8402 * from the remote NPort to find out what it 8403 * will be. 8404 */ 8405 vport->fc_myDID = PT2PT_LocalID; 8406 } else { 8407 vport->fc_myDID = PT2PT_RemoteID; 8408 } 8409 8410 /* 8411 * The vport state should go to LPFC_FLOGI only 8412 * AFTER we issue a FLOGI, not receive one. 8413 */ 8414 spin_lock_irq(shost->host_lock); 8415 fc_flag = vport->fc_flag; 8416 port_state = vport->port_state; 8417 vport->fc_flag |= FC_PT2PT; 8418 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 8419 8420 /* Acking an unsol FLOGI. Count 1 for link bounce 8421 * work-around. 8422 */ 8423 vport->rcv_flogi_cnt++; 8424 spin_unlock_irq(shost->host_lock); 8425 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 8426 "3311 Rcv Flogi PS x%x new PS x%x " 8427 "fc_flag x%x new fc_flag x%x\n", 8428 port_state, vport->port_state, 8429 fc_flag, vport->fc_flag); 8430 8431 /* 8432 * We temporarily set fc_myDID to make it look like we are 8433 * a Fabric. This is done just so we end up with the right 8434 * did / sid on the FLOGI ACC rsp. 8435 */ 8436 did = vport->fc_myDID; 8437 vport->fc_myDID = Fabric_DID; 8438 8439 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 8440 8441 /* Defer ACC response until AFTER we issue a FLOGI */ 8442 if (!(phba->hba_flag & HBA_FLOGI_ISSUED)) { 8443 phba->defer_flogi_acc_rx_id = bf_get(wqe_ctxt_tag, 8444 &wqe->xmit_els_rsp.wqe_com); 8445 phba->defer_flogi_acc_ox_id = bf_get(wqe_rcvoxid, 8446 &wqe->xmit_els_rsp.wqe_com); 8447 8448 vport->fc_myDID = did; 8449 8450 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 8451 "3344 Deferring FLOGI ACC: rx_id: x%x," 8452 " ox_id: x%x, hba_flag x%x\n", 8453 phba->defer_flogi_acc_rx_id, 8454 phba->defer_flogi_acc_ox_id, phba->hba_flag); 8455 8456 phba->defer_flogi_acc_flag = true; 8457 8458 return 0; 8459 } 8460 8461 /* Send back ACC */ 8462 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL); 8463 8464 /* Now lets put fc_myDID back to what its supposed to be */ 8465 vport->fc_myDID = did; 8466 8467 return 0; 8468 } 8469 8470 /** 8471 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb 8472 * @vport: pointer to a host virtual N_Port data structure. 8473 * @cmdiocb: pointer to lpfc command iocb data structure. 8474 * @ndlp: pointer to a node-list data structure. 8475 * 8476 * This routine processes Request Node Identification Data (RNID) IOCB 8477 * received as an ELS unsolicited event. Only when the RNID specified format 8478 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data) 8479 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to 8480 * Accept (ACC) the RNID ELS command. All the other RNID formats are 8481 * rejected by invoking the lpfc_els_rsp_reject() routine. 8482 * 8483 * Return code 8484 * 0 - Successfully processed rnid iocb (currently always return 0) 8485 **/ 8486 static int 8487 lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8488 struct lpfc_nodelist *ndlp) 8489 { 8490 struct lpfc_dmabuf *pcmd; 8491 uint32_t *lp; 8492 RNID *rn; 8493 struct ls_rjt stat; 8494 8495 pcmd = cmdiocb->cmd_dmabuf; 8496 lp = (uint32_t *) pcmd->virt; 8497 8498 lp++; 8499 rn = (RNID *) lp; 8500 8501 /* RNID received */ 8502 8503 switch (rn->Format) { 8504 case 0: 8505 case RNID_TOPOLOGY_DISC: 8506 /* Send back ACC */ 8507 lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); 8508 break; 8509 default: 8510 /* Reject this request because format not supported */ 8511 stat.un.b.lsRjtRsvd0 = 0; 8512 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8513 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8514 stat.un.b.vendorUnique = 0; 8515 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 8516 NULL); 8517 } 8518 return 0; 8519 } 8520 8521 /** 8522 * lpfc_els_rcv_echo - Process an unsolicited echo iocb 8523 * @vport: pointer to a host virtual N_Port data structure. 8524 * @cmdiocb: pointer to lpfc command iocb data structure. 8525 * @ndlp: pointer to a node-list data structure. 8526 * 8527 * Return code 8528 * 0 - Successfully processed echo iocb (currently always return 0) 8529 **/ 8530 static int 8531 lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8532 struct lpfc_nodelist *ndlp) 8533 { 8534 uint8_t *pcmd; 8535 8536 pcmd = (uint8_t *)cmdiocb->cmd_dmabuf->virt; 8537 8538 /* skip over first word of echo command to find echo data */ 8539 pcmd += sizeof(uint32_t); 8540 8541 lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp); 8542 return 0; 8543 } 8544 8545 /** 8546 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb 8547 * @vport: pointer to a host virtual N_Port data structure. 8548 * @cmdiocb: pointer to lpfc command iocb data structure. 8549 * @ndlp: pointer to a node-list data structure. 8550 * 8551 * This routine processes a Link Incident Report Registration(LIRR) IOCB 8552 * received as an ELS unsolicited event. Currently, this function just invokes 8553 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally. 8554 * 8555 * Return code 8556 * 0 - Successfully processed lirr iocb (currently always return 0) 8557 **/ 8558 static int 8559 lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8560 struct lpfc_nodelist *ndlp) 8561 { 8562 struct ls_rjt stat; 8563 8564 /* For now, unconditionally reject this command */ 8565 stat.un.b.lsRjtRsvd0 = 0; 8566 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8567 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8568 stat.un.b.vendorUnique = 0; 8569 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 8570 return 0; 8571 } 8572 8573 /** 8574 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb 8575 * @vport: pointer to a host virtual N_Port data structure. 8576 * @cmdiocb: pointer to lpfc command iocb data structure. 8577 * @ndlp: pointer to a node-list data structure. 8578 * 8579 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB 8580 * received as an ELS unsolicited event. A request to RRQ shall only 8581 * be accepted if the Originator Nx_Port N_Port_ID or the Responder 8582 * Nx_Port N_Port_ID of the target Exchange is the same as the 8583 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is 8584 * not accepted, an LS_RJT with reason code "Unable to perform 8585 * command request" and reason code explanation "Invalid Originator 8586 * S_ID" shall be returned. For now, we just unconditionally accept 8587 * RRQ from the target. 8588 **/ 8589 static void 8590 lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8591 struct lpfc_nodelist *ndlp) 8592 { 8593 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8594 if (vport->phba->sli_rev == LPFC_SLI_REV4) 8595 lpfc_els_clear_rrq(vport, cmdiocb, ndlp); 8596 } 8597 8598 /** 8599 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd 8600 * @phba: pointer to lpfc hba data structure. 8601 * @pmb: pointer to the driver internal queue element for mailbox command. 8602 * 8603 * This routine is the completion callback function for the MBX_READ_LNK_STAT 8604 * mailbox command. This callback function is to actually send the Accept 8605 * (ACC) response to a Read Link Status (RLS) unsolicited IOCB event. It 8606 * collects the link statistics from the completion of the MBX_READ_LNK_STAT 8607 * mailbox command, constructs the RLS response with the link statistics 8608 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC 8609 * response to the RLS. 8610 * 8611 * Note that the ndlp reference count will be incremented by 1 for holding the 8612 * ndlp and the reference to ndlp will be stored into the ndlp field of 8613 * the IOCB for the completion callback function to the RLS Accept Response 8614 * ELS IOCB command. 8615 * 8616 **/ 8617 static void 8618 lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 8619 { 8620 int rc = 0; 8621 MAILBOX_t *mb; 8622 IOCB_t *icmd; 8623 union lpfc_wqe128 *wqe; 8624 struct RLS_RSP *rls_rsp; 8625 uint8_t *pcmd; 8626 struct lpfc_iocbq *elsiocb; 8627 struct lpfc_nodelist *ndlp; 8628 uint16_t oxid; 8629 uint16_t rxid; 8630 uint32_t cmdsize; 8631 u32 ulp_context; 8632 8633 mb = &pmb->u.mb; 8634 8635 ndlp = pmb->ctx_ndlp; 8636 rxid = (uint16_t)((unsigned long)(pmb->ctx_buf) & 0xffff); 8637 oxid = (uint16_t)(((unsigned long)(pmb->ctx_buf) >> 16) & 0xffff); 8638 pmb->ctx_buf = NULL; 8639 pmb->ctx_ndlp = NULL; 8640 8641 if (mb->mbxStatus) { 8642 mempool_free(pmb, phba->mbox_mem_pool); 8643 return; 8644 } 8645 8646 cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t); 8647 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 8648 lpfc_max_els_tries, ndlp, 8649 ndlp->nlp_DID, ELS_CMD_ACC); 8650 8651 /* Decrement the ndlp reference count from previous mbox command */ 8652 lpfc_nlp_put(ndlp); 8653 8654 if (!elsiocb) { 8655 mempool_free(pmb, phba->mbox_mem_pool); 8656 return; 8657 } 8658 8659 ulp_context = get_job_ulpcontext(phba, elsiocb); 8660 if (phba->sli_rev == LPFC_SLI_REV4) { 8661 wqe = &elsiocb->wqe; 8662 /* Xri / rx_id */ 8663 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, rxid); 8664 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, oxid); 8665 } else { 8666 icmd = &elsiocb->iocb; 8667 icmd->ulpContext = rxid; 8668 icmd->unsli3.rcvsli3.ox_id = oxid; 8669 } 8670 8671 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 8672 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 8673 pcmd += sizeof(uint32_t); /* Skip past command */ 8674 rls_rsp = (struct RLS_RSP *)pcmd; 8675 8676 rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); 8677 rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); 8678 rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); 8679 rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); 8680 rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); 8681 rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); 8682 mempool_free(pmb, phba->mbox_mem_pool); 8683 /* Xmit ELS RLS ACC response tag <ulpIoTag> */ 8684 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, 8685 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, " 8686 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", 8687 elsiocb->iotag, ulp_context, 8688 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 8689 ndlp->nlp_rpi); 8690 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 8691 phba->fc_stat.elsXmitACC++; 8692 elsiocb->ndlp = lpfc_nlp_get(ndlp); 8693 if (!elsiocb->ndlp) { 8694 lpfc_els_free_iocb(phba, elsiocb); 8695 return; 8696 } 8697 8698 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 8699 if (rc == IOCB_ERROR) { 8700 lpfc_els_free_iocb(phba, elsiocb); 8701 lpfc_nlp_put(ndlp); 8702 } 8703 return; 8704 } 8705 8706 /** 8707 * lpfc_els_rcv_rls - Process an unsolicited rls iocb 8708 * @vport: pointer to a host virtual N_Port data structure. 8709 * @cmdiocb: pointer to lpfc command iocb data structure. 8710 * @ndlp: pointer to a node-list data structure. 8711 * 8712 * This routine processes Read Link Status (RLS) IOCB received as an 8713 * ELS unsolicited event. It first checks the remote port state. If the 8714 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE 8715 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject 8716 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command 8717 * for reading the HBA link statistics. It is for the callback function, 8718 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command 8719 * to actually sending out RPL Accept (ACC) response. 8720 * 8721 * Return codes 8722 * 0 - Successfully processed rls iocb (currently always return 0) 8723 **/ 8724 static int 8725 lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8726 struct lpfc_nodelist *ndlp) 8727 { 8728 struct lpfc_hba *phba = vport->phba; 8729 LPFC_MBOXQ_t *mbox; 8730 struct ls_rjt stat; 8731 u32 ctx = get_job_ulpcontext(phba, cmdiocb); 8732 u32 ox_id = get_job_rcvoxid(phba, cmdiocb); 8733 8734 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 8735 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) 8736 /* reject the unsolicited RLS request and done with it */ 8737 goto reject_out; 8738 8739 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); 8740 if (mbox) { 8741 lpfc_read_lnk_stat(phba, mbox); 8742 mbox->ctx_buf = (void *)((unsigned long) 8743 (ox_id << 16 | ctx)); 8744 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 8745 if (!mbox->ctx_ndlp) 8746 goto node_err; 8747 mbox->vport = vport; 8748 mbox->mbox_cmpl = lpfc_els_rsp_rls_acc; 8749 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 8750 != MBX_NOT_FINISHED) 8751 /* Mbox completion will send ELS Response */ 8752 return 0; 8753 /* Decrement reference count used for the failed mbox 8754 * command. 8755 */ 8756 lpfc_nlp_put(ndlp); 8757 node_err: 8758 mempool_free(mbox, phba->mbox_mem_pool); 8759 } 8760 reject_out: 8761 /* issue rejection response */ 8762 stat.un.b.lsRjtRsvd0 = 0; 8763 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8764 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8765 stat.un.b.vendorUnique = 0; 8766 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 8767 return 0; 8768 } 8769 8770 /** 8771 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb 8772 * @vport: pointer to a host virtual N_Port data structure. 8773 * @cmdiocb: pointer to lpfc command iocb data structure. 8774 * @ndlp: pointer to a node-list data structure. 8775 * 8776 * This routine processes Read Timout Value (RTV) IOCB received as an 8777 * ELS unsolicited event. It first checks the remote port state. If the 8778 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE 8779 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject 8780 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout 8781 * Value (RTV) unsolicited IOCB event. 8782 * 8783 * Note that the ndlp reference count will be incremented by 1 for holding the 8784 * ndlp and the reference to ndlp will be stored into the ndlp field of 8785 * the IOCB for the completion callback function to the RTV Accept Response 8786 * ELS IOCB command. 8787 * 8788 * Return codes 8789 * 0 - Successfully processed rtv iocb (currently always return 0) 8790 **/ 8791 static int 8792 lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8793 struct lpfc_nodelist *ndlp) 8794 { 8795 int rc = 0; 8796 IOCB_t *icmd; 8797 union lpfc_wqe128 *wqe; 8798 struct lpfc_hba *phba = vport->phba; 8799 struct ls_rjt stat; 8800 struct RTV_RSP *rtv_rsp; 8801 uint8_t *pcmd; 8802 struct lpfc_iocbq *elsiocb; 8803 uint32_t cmdsize; 8804 u32 ulp_context; 8805 8806 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 8807 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) 8808 /* reject the unsolicited RTV request and done with it */ 8809 goto reject_out; 8810 8811 cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t); 8812 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 8813 lpfc_max_els_tries, ndlp, 8814 ndlp->nlp_DID, ELS_CMD_ACC); 8815 8816 if (!elsiocb) 8817 return 1; 8818 8819 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 8820 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 8821 pcmd += sizeof(uint32_t); /* Skip past command */ 8822 8823 ulp_context = get_job_ulpcontext(phba, elsiocb); 8824 /* use the command's xri in the response */ 8825 if (phba->sli_rev == LPFC_SLI_REV4) { 8826 wqe = &elsiocb->wqe; 8827 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 8828 get_job_ulpcontext(phba, cmdiocb)); 8829 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 8830 get_job_rcvoxid(phba, cmdiocb)); 8831 } else { 8832 icmd = &elsiocb->iocb; 8833 icmd->ulpContext = get_job_ulpcontext(phba, cmdiocb); 8834 icmd->unsli3.rcvsli3.ox_id = get_job_rcvoxid(phba, cmdiocb); 8835 } 8836 8837 rtv_rsp = (struct RTV_RSP *)pcmd; 8838 8839 /* populate RTV payload */ 8840 rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */ 8841 rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov); 8842 bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0); 8843 bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */ 8844 rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov); 8845 8846 /* Xmit ELS RLS ACC response tag <ulpIoTag> */ 8847 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, 8848 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, " 8849 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, " 8850 "Data: x%x x%x x%x\n", 8851 elsiocb->iotag, ulp_context, 8852 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 8853 ndlp->nlp_rpi, 8854 rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov); 8855 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 8856 phba->fc_stat.elsXmitACC++; 8857 elsiocb->ndlp = lpfc_nlp_get(ndlp); 8858 if (!elsiocb->ndlp) { 8859 lpfc_els_free_iocb(phba, elsiocb); 8860 return 0; 8861 } 8862 8863 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 8864 if (rc == IOCB_ERROR) { 8865 lpfc_els_free_iocb(phba, elsiocb); 8866 lpfc_nlp_put(ndlp); 8867 } 8868 return 0; 8869 8870 reject_out: 8871 /* issue rejection response */ 8872 stat.un.b.lsRjtRsvd0 = 0; 8873 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8874 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8875 stat.un.b.vendorUnique = 0; 8876 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 8877 return 0; 8878 } 8879 8880 /* lpfc_issue_els_rrq - Process an unsolicited rrq iocb 8881 * @vport: pointer to a host virtual N_Port data structure. 8882 * @ndlp: pointer to a node-list data structure. 8883 * @did: DID of the target. 8884 * @rrq: Pointer to the rrq struct. 8885 * 8886 * Build a ELS RRQ command and send it to the target. If the issue_iocb is 8887 * successful, the completion handler will clear the RRQ. 8888 * 8889 * Return codes 8890 * 0 - Successfully sent rrq els iocb. 8891 * 1 - Failed to send rrq els iocb. 8892 **/ 8893 static int 8894 lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 8895 uint32_t did, struct lpfc_node_rrq *rrq) 8896 { 8897 struct lpfc_hba *phba = vport->phba; 8898 struct RRQ *els_rrq; 8899 struct lpfc_iocbq *elsiocb; 8900 uint8_t *pcmd; 8901 uint16_t cmdsize; 8902 int ret; 8903 8904 if (!ndlp) 8905 return 1; 8906 8907 /* If ndlp is not NULL, we will bump the reference count on it */ 8908 cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ)); 8909 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did, 8910 ELS_CMD_RRQ); 8911 if (!elsiocb) 8912 return 1; 8913 8914 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 8915 8916 /* For RRQ request, remainder of payload is Exchange IDs */ 8917 *((uint32_t *) (pcmd)) = ELS_CMD_RRQ; 8918 pcmd += sizeof(uint32_t); 8919 els_rrq = (struct RRQ *) pcmd; 8920 8921 bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]); 8922 bf_set(rrq_rxid, els_rrq, rrq->rxid); 8923 bf_set(rrq_did, els_rrq, vport->fc_myDID); 8924 els_rrq->rrq = cpu_to_be32(els_rrq->rrq); 8925 els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg); 8926 8927 8928 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 8929 "Issue RRQ: did:x%x", 8930 did, rrq->xritag, rrq->rxid); 8931 elsiocb->context_un.rrq = rrq; 8932 elsiocb->cmd_cmpl = lpfc_cmpl_els_rrq; 8933 8934 elsiocb->ndlp = lpfc_nlp_get(ndlp); 8935 if (!elsiocb->ndlp) 8936 goto io_err; 8937 8938 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 8939 if (ret == IOCB_ERROR) { 8940 lpfc_nlp_put(ndlp); 8941 goto io_err; 8942 } 8943 return 0; 8944 8945 io_err: 8946 lpfc_els_free_iocb(phba, elsiocb); 8947 return 1; 8948 } 8949 8950 /** 8951 * lpfc_send_rrq - Sends ELS RRQ if needed. 8952 * @phba: pointer to lpfc hba data structure. 8953 * @rrq: pointer to the active rrq. 8954 * 8955 * This routine will call the lpfc_issue_els_rrq if the rrq is 8956 * still active for the xri. If this function returns a failure then 8957 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq. 8958 * 8959 * Returns 0 Success. 8960 * 1 Failure. 8961 **/ 8962 int 8963 lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq) 8964 { 8965 struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport, 8966 rrq->nlp_DID); 8967 if (!ndlp) 8968 return 1; 8969 8970 if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag)) 8971 return lpfc_issue_els_rrq(rrq->vport, ndlp, 8972 rrq->nlp_DID, rrq); 8973 else 8974 return 1; 8975 } 8976 8977 /** 8978 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command 8979 * @vport: pointer to a host virtual N_Port data structure. 8980 * @cmdsize: size of the ELS command. 8981 * @oldiocb: pointer to the original lpfc command iocb data structure. 8982 * @ndlp: pointer to a node-list data structure. 8983 * 8984 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command. 8985 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL. 8986 * 8987 * Note that the ndlp reference count will be incremented by 1 for holding the 8988 * ndlp and the reference to ndlp will be stored into the ndlp field of 8989 * the IOCB for the completion callback function to the RPL Accept Response 8990 * ELS command. 8991 * 8992 * Return code 8993 * 0 - Successfully issued ACC RPL ELS command 8994 * 1 - Failed to issue ACC RPL ELS command 8995 **/ 8996 static int 8997 lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, 8998 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) 8999 { 9000 int rc = 0; 9001 struct lpfc_hba *phba = vport->phba; 9002 IOCB_t *icmd; 9003 union lpfc_wqe128 *wqe; 9004 RPL_RSP rpl_rsp; 9005 struct lpfc_iocbq *elsiocb; 9006 uint8_t *pcmd; 9007 u32 ulp_context; 9008 9009 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 9010 ndlp->nlp_DID, ELS_CMD_ACC); 9011 9012 if (!elsiocb) 9013 return 1; 9014 9015 ulp_context = get_job_ulpcontext(phba, elsiocb); 9016 if (phba->sli_rev == LPFC_SLI_REV4) { 9017 wqe = &elsiocb->wqe; 9018 /* Xri / rx_id */ 9019 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 9020 get_job_ulpcontext(phba, oldiocb)); 9021 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 9022 get_job_rcvoxid(phba, oldiocb)); 9023 } else { 9024 icmd = &elsiocb->iocb; 9025 icmd->ulpContext = get_job_ulpcontext(phba, oldiocb); 9026 icmd->unsli3.rcvsli3.ox_id = get_job_rcvoxid(phba, oldiocb); 9027 } 9028 9029 pcmd = elsiocb->cmd_dmabuf->virt; 9030 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 9031 pcmd += sizeof(uint16_t); 9032 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); 9033 pcmd += sizeof(uint16_t); 9034 9035 /* Setup the RPL ACC payload */ 9036 rpl_rsp.listLen = be32_to_cpu(1); 9037 rpl_rsp.index = 0; 9038 rpl_rsp.port_num_blk.portNum = 0; 9039 rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); 9040 memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, 9041 sizeof(struct lpfc_name)); 9042 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); 9043 /* Xmit ELS RPL ACC response tag <ulpIoTag> */ 9044 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9045 "0120 Xmit ELS RPL ACC response tag x%x " 9046 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " 9047 "rpi x%x\n", 9048 elsiocb->iotag, ulp_context, 9049 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 9050 ndlp->nlp_rpi); 9051 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 9052 phba->fc_stat.elsXmitACC++; 9053 elsiocb->ndlp = lpfc_nlp_get(ndlp); 9054 if (!elsiocb->ndlp) { 9055 lpfc_els_free_iocb(phba, elsiocb); 9056 return 1; 9057 } 9058 9059 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 9060 if (rc == IOCB_ERROR) { 9061 lpfc_els_free_iocb(phba, elsiocb); 9062 lpfc_nlp_put(ndlp); 9063 return 1; 9064 } 9065 9066 return 0; 9067 } 9068 9069 /** 9070 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb 9071 * @vport: pointer to a host virtual N_Port data structure. 9072 * @cmdiocb: pointer to lpfc command iocb data structure. 9073 * @ndlp: pointer to a node-list data structure. 9074 * 9075 * This routine processes Read Port List (RPL) IOCB received as an ELS 9076 * unsolicited event. It first checks the remote port state. If the remote 9077 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it 9078 * invokes the lpfc_els_rsp_reject() routine to send reject response. 9079 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine 9080 * to accept the RPL. 9081 * 9082 * Return code 9083 * 0 - Successfully processed rpl iocb (currently always return 0) 9084 **/ 9085 static int 9086 lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9087 struct lpfc_nodelist *ndlp) 9088 { 9089 struct lpfc_dmabuf *pcmd; 9090 uint32_t *lp; 9091 uint32_t maxsize; 9092 uint16_t cmdsize; 9093 RPL *rpl; 9094 struct ls_rjt stat; 9095 9096 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 9097 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { 9098 /* issue rejection response */ 9099 stat.un.b.lsRjtRsvd0 = 0; 9100 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 9101 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 9102 stat.un.b.vendorUnique = 0; 9103 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 9104 NULL); 9105 /* rejected the unsolicited RPL request and done with it */ 9106 return 0; 9107 } 9108 9109 pcmd = cmdiocb->cmd_dmabuf; 9110 lp = (uint32_t *) pcmd->virt; 9111 rpl = (RPL *) (lp + 1); 9112 maxsize = be32_to_cpu(rpl->maxsize); 9113 9114 /* We support only one port */ 9115 if ((rpl->index == 0) && 9116 ((maxsize == 0) || 9117 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { 9118 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); 9119 } else { 9120 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); 9121 } 9122 lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); 9123 9124 return 0; 9125 } 9126 9127 /** 9128 * lpfc_els_rcv_farp - Process an unsolicited farp request els command 9129 * @vport: pointer to a virtual N_Port data structure. 9130 * @cmdiocb: pointer to lpfc command iocb data structure. 9131 * @ndlp: pointer to a node-list data structure. 9132 * 9133 * This routine processes Fibre Channel Address Resolution Protocol 9134 * (FARP) Request IOCB received as an ELS unsolicited event. Currently, 9135 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such, 9136 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the 9137 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the 9138 * remote PortName is compared against the FC PortName stored in the @vport 9139 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is 9140 * compared against the FC NodeName stored in the @vport data structure. 9141 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the 9142 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is 9143 * invoked to send out FARP Response to the remote node. Before sending the 9144 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP 9145 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi() 9146 * routine is invoked to log into the remote port first. 9147 * 9148 * Return code 9149 * 0 - Either the FARP Match Mode not supported or successfully processed 9150 **/ 9151 static int 9152 lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9153 struct lpfc_nodelist *ndlp) 9154 { 9155 struct lpfc_dmabuf *pcmd; 9156 uint32_t *lp; 9157 FARP *fp; 9158 uint32_t cnt, did; 9159 9160 did = get_job_els_rsp64_did(vport->phba, cmdiocb); 9161 pcmd = cmdiocb->cmd_dmabuf; 9162 lp = (uint32_t *) pcmd->virt; 9163 9164 lp++; 9165 fp = (FARP *) lp; 9166 /* FARP-REQ received from DID <did> */ 9167 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9168 "0601 FARP-REQ received from DID x%x\n", did); 9169 /* We will only support match on WWPN or WWNN */ 9170 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { 9171 return 0; 9172 } 9173 9174 cnt = 0; 9175 /* If this FARP command is searching for my portname */ 9176 if (fp->Mflags & FARP_MATCH_PORT) { 9177 if (memcmp(&fp->RportName, &vport->fc_portname, 9178 sizeof(struct lpfc_name)) == 0) 9179 cnt = 1; 9180 } 9181 9182 /* If this FARP command is searching for my nodename */ 9183 if (fp->Mflags & FARP_MATCH_NODE) { 9184 if (memcmp(&fp->RnodeName, &vport->fc_nodename, 9185 sizeof(struct lpfc_name)) == 0) 9186 cnt = 1; 9187 } 9188 9189 if (cnt) { 9190 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || 9191 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { 9192 /* Log back into the node before sending the FARP. */ 9193 if (fp->Rflags & FARP_REQUEST_PLOGI) { 9194 ndlp->nlp_prev_state = ndlp->nlp_state; 9195 lpfc_nlp_set_state(vport, ndlp, 9196 NLP_STE_PLOGI_ISSUE); 9197 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 9198 } 9199 9200 /* Send a FARP response to that node */ 9201 if (fp->Rflags & FARP_REQUEST_FARPR) 9202 lpfc_issue_els_farpr(vport, did, 0); 9203 } 9204 } 9205 return 0; 9206 } 9207 9208 /** 9209 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb 9210 * @vport: pointer to a host virtual N_Port data structure. 9211 * @cmdiocb: pointer to lpfc command iocb data structure. 9212 * @ndlp: pointer to a node-list data structure. 9213 * 9214 * This routine processes Fibre Channel Address Resolution Protocol 9215 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply 9216 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept 9217 * the FARP response request. 9218 * 9219 * Return code 9220 * 0 - Successfully processed FARPR IOCB (currently always return 0) 9221 **/ 9222 static int 9223 lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9224 struct lpfc_nodelist *ndlp) 9225 { 9226 uint32_t did; 9227 9228 did = get_job_els_rsp64_did(vport->phba, cmdiocb); 9229 9230 /* FARP-RSP received from DID <did> */ 9231 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9232 "0600 FARP-RSP received from DID x%x\n", did); 9233 /* ACCEPT the Farp resp request */ 9234 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 9235 9236 return 0; 9237 } 9238 9239 /** 9240 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command 9241 * @vport: pointer to a host virtual N_Port data structure. 9242 * @cmdiocb: pointer to lpfc command iocb data structure. 9243 * @fan_ndlp: pointer to a node-list data structure. 9244 * 9245 * This routine processes a Fabric Address Notification (FAN) IOCB 9246 * command received as an ELS unsolicited event. The FAN ELS command will 9247 * only be processed on a physical port (i.e., the @vport represents the 9248 * physical port). The fabric NodeName and PortName from the FAN IOCB are 9249 * compared against those in the phba data structure. If any of those is 9250 * different, the lpfc_initial_flogi() routine is invoked to initialize 9251 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise, 9252 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine 9253 * is invoked to register login to the fabric. 9254 * 9255 * Return code 9256 * 0 - Successfully processed fan iocb (currently always return 0). 9257 **/ 9258 static int 9259 lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9260 struct lpfc_nodelist *fan_ndlp) 9261 { 9262 struct lpfc_hba *phba = vport->phba; 9263 uint32_t *lp; 9264 FAN *fp; 9265 9266 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); 9267 lp = (uint32_t *)cmdiocb->cmd_dmabuf->virt; 9268 fp = (FAN *) ++lp; 9269 /* FAN received; Fan does not have a reply sequence */ 9270 if ((vport == phba->pport) && 9271 (vport->port_state == LPFC_LOCAL_CFG_LINK)) { 9272 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, 9273 sizeof(struct lpfc_name))) || 9274 (memcmp(&phba->fc_fabparam.portName, &fp->FportName, 9275 sizeof(struct lpfc_name)))) { 9276 /* This port has switched fabrics. FLOGI is required */ 9277 lpfc_issue_init_vfi(vport); 9278 } else { 9279 /* FAN verified - skip FLOGI */ 9280 vport->fc_myDID = vport->fc_prevDID; 9281 if (phba->sli_rev < LPFC_SLI_REV4) 9282 lpfc_issue_fabric_reglogin(vport); 9283 else { 9284 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9285 "3138 Need register VFI: (x%x/%x)\n", 9286 vport->fc_prevDID, vport->fc_myDID); 9287 lpfc_issue_reg_vfi(vport); 9288 } 9289 } 9290 } 9291 return 0; 9292 } 9293 9294 /** 9295 * lpfc_els_rcv_edc - Process an unsolicited EDC iocb 9296 * @vport: pointer to a host virtual N_Port data structure. 9297 * @cmdiocb: pointer to lpfc command iocb data structure. 9298 * @ndlp: pointer to a node-list data structure. 9299 * 9300 * Return code 9301 * 0 - Successfully processed echo iocb (currently always return 0) 9302 **/ 9303 static int 9304 lpfc_els_rcv_edc(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9305 struct lpfc_nodelist *ndlp) 9306 { 9307 struct lpfc_hba *phba = vport->phba; 9308 struct fc_els_edc *edc_req; 9309 struct fc_tlv_desc *tlv; 9310 uint8_t *payload; 9311 uint32_t *ptr, dtag; 9312 const char *dtag_nm; 9313 int desc_cnt = 0, bytes_remain; 9314 struct fc_diag_lnkflt_desc *plnkflt; 9315 9316 payload = cmdiocb->cmd_dmabuf->virt; 9317 9318 edc_req = (struct fc_els_edc *)payload; 9319 bytes_remain = be32_to_cpu(edc_req->desc_len); 9320 9321 ptr = (uint32_t *)payload; 9322 lpfc_printf_vlog(vport, KERN_INFO, 9323 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9324 "3319 Rcv EDC payload len %d: x%x x%x x%x\n", 9325 bytes_remain, be32_to_cpu(*ptr), 9326 be32_to_cpu(*(ptr + 1)), be32_to_cpu(*(ptr + 2))); 9327 9328 /* No signal support unless there is a congestion descriptor */ 9329 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 9330 phba->cgn_sig_freq = 0; 9331 phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN; 9332 9333 if (bytes_remain <= 0) 9334 goto out; 9335 9336 tlv = edc_req->desc; 9337 9338 /* 9339 * cycle through EDC diagnostic descriptors to find the 9340 * congestion signaling capability descriptor 9341 */ 9342 while (bytes_remain) { 9343 if (bytes_remain < FC_TLV_DESC_HDR_SZ) { 9344 lpfc_printf_log(phba, KERN_WARNING, 9345 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9346 "6464 Truncated TLV hdr on " 9347 "Diagnostic descriptor[%d]\n", 9348 desc_cnt); 9349 goto out; 9350 } 9351 9352 dtag = be32_to_cpu(tlv->desc_tag); 9353 switch (dtag) { 9354 case ELS_DTAG_LNK_FAULT_CAP: 9355 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 9356 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 9357 sizeof(struct fc_diag_lnkflt_desc)) { 9358 lpfc_printf_log(phba, KERN_WARNING, 9359 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9360 "6465 Truncated Link Fault Diagnostic " 9361 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 9362 desc_cnt, bytes_remain, 9363 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 9364 sizeof(struct fc_diag_lnkflt_desc)); 9365 goto out; 9366 } 9367 plnkflt = (struct fc_diag_lnkflt_desc *)tlv; 9368 lpfc_printf_log(phba, KERN_INFO, 9369 LOG_ELS | LOG_LDS_EVENT, 9370 "4626 Link Fault Desc Data: x%08x len x%x " 9371 "da x%x dd x%x interval x%x\n", 9372 be32_to_cpu(plnkflt->desc_tag), 9373 be32_to_cpu(plnkflt->desc_len), 9374 be32_to_cpu( 9375 plnkflt->degrade_activate_threshold), 9376 be32_to_cpu( 9377 plnkflt->degrade_deactivate_threshold), 9378 be32_to_cpu(plnkflt->fec_degrade_interval)); 9379 break; 9380 case ELS_DTAG_CG_SIGNAL_CAP: 9381 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 9382 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 9383 sizeof(struct fc_diag_cg_sig_desc)) { 9384 lpfc_printf_log( 9385 phba, KERN_WARNING, LOG_CGN_MGMT, 9386 "6466 Truncated cgn signal Diagnostic " 9387 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 9388 desc_cnt, bytes_remain, 9389 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 9390 sizeof(struct fc_diag_cg_sig_desc)); 9391 goto out; 9392 } 9393 9394 phba->cgn_reg_fpin = phba->cgn_init_reg_fpin; 9395 phba->cgn_reg_signal = phba->cgn_init_reg_signal; 9396 9397 /* We start negotiation with lpfc_fabric_cgn_frequency. 9398 * When we process the EDC, we will settle on the 9399 * higher frequency. 9400 */ 9401 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency; 9402 9403 lpfc_least_capable_settings( 9404 phba, (struct fc_diag_cg_sig_desc *)tlv); 9405 break; 9406 default: 9407 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 9408 lpfc_printf_log(phba, KERN_WARNING, 9409 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9410 "6467 unknown Diagnostic " 9411 "Descriptor[%d]: tag x%x (%s)\n", 9412 desc_cnt, dtag, dtag_nm); 9413 } 9414 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv); 9415 tlv = fc_tlv_next_desc(tlv); 9416 desc_cnt++; 9417 } 9418 out: 9419 /* Need to send back an ACC */ 9420 lpfc_issue_els_edc_rsp(vport, cmdiocb, ndlp); 9421 9422 lpfc_config_cgn_signal(phba); 9423 return 0; 9424 } 9425 9426 /** 9427 * lpfc_els_timeout - Handler funciton to the els timer 9428 * @t: timer context used to obtain the vport. 9429 * 9430 * This routine is invoked by the ELS timer after timeout. It posts the ELS 9431 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port 9432 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake 9433 * up the worker thread. It is for the worker thread to invoke the routine 9434 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO. 9435 **/ 9436 void 9437 lpfc_els_timeout(struct timer_list *t) 9438 { 9439 struct lpfc_vport *vport = from_timer(vport, t, els_tmofunc); 9440 struct lpfc_hba *phba = vport->phba; 9441 uint32_t tmo_posted; 9442 unsigned long iflag; 9443 9444 spin_lock_irqsave(&vport->work_port_lock, iflag); 9445 tmo_posted = vport->work_port_events & WORKER_ELS_TMO; 9446 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING))) 9447 vport->work_port_events |= WORKER_ELS_TMO; 9448 spin_unlock_irqrestore(&vport->work_port_lock, iflag); 9449 9450 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING))) 9451 lpfc_worker_wake_up(phba); 9452 return; 9453 } 9454 9455 9456 /** 9457 * lpfc_els_timeout_handler - Process an els timeout event 9458 * @vport: pointer to a virtual N_Port data structure. 9459 * 9460 * This routine is the actual handler function that processes an ELS timeout 9461 * event. It walks the ELS ring to get and abort all the IOCBs (except the 9462 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by 9463 * invoking the lpfc_sli_issue_abort_iotag() routine. 9464 **/ 9465 void 9466 lpfc_els_timeout_handler(struct lpfc_vport *vport) 9467 { 9468 struct lpfc_hba *phba = vport->phba; 9469 struct lpfc_sli_ring *pring; 9470 struct lpfc_iocbq *tmp_iocb, *piocb; 9471 IOCB_t *cmd = NULL; 9472 struct lpfc_dmabuf *pcmd; 9473 uint32_t els_command = 0; 9474 uint32_t timeout; 9475 uint32_t remote_ID = 0xffffffff; 9476 LIST_HEAD(abort_list); 9477 u32 ulp_command = 0, ulp_context = 0, did = 0, iotag = 0; 9478 9479 9480 timeout = (uint32_t)(phba->fc_ratov << 1); 9481 9482 pring = lpfc_phba_elsring(phba); 9483 if (unlikely(!pring)) 9484 return; 9485 9486 if (phba->pport->load_flag & FC_UNLOADING) 9487 return; 9488 9489 spin_lock_irq(&phba->hbalock); 9490 if (phba->sli_rev == LPFC_SLI_REV4) 9491 spin_lock(&pring->ring_lock); 9492 9493 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { 9494 ulp_command = get_job_cmnd(phba, piocb); 9495 ulp_context = get_job_ulpcontext(phba, piocb); 9496 did = get_job_els_rsp64_did(phba, piocb); 9497 9498 if (phba->sli_rev == LPFC_SLI_REV4) { 9499 iotag = get_wqe_reqtag(piocb); 9500 } else { 9501 cmd = &piocb->iocb; 9502 iotag = cmd->ulpIoTag; 9503 } 9504 9505 if ((piocb->cmd_flag & LPFC_IO_LIBDFC) != 0 || 9506 ulp_command == CMD_ABORT_XRI_CX || 9507 ulp_command == CMD_ABORT_XRI_CN || 9508 ulp_command == CMD_CLOSE_XRI_CN) 9509 continue; 9510 9511 if (piocb->vport != vport) 9512 continue; 9513 9514 pcmd = piocb->cmd_dmabuf; 9515 if (pcmd) 9516 els_command = *(uint32_t *) (pcmd->virt); 9517 9518 if (els_command == ELS_CMD_FARP || 9519 els_command == ELS_CMD_FARPR || 9520 els_command == ELS_CMD_FDISC) 9521 continue; 9522 9523 if (piocb->drvrTimeout > 0) { 9524 if (piocb->drvrTimeout >= timeout) 9525 piocb->drvrTimeout -= timeout; 9526 else 9527 piocb->drvrTimeout = 0; 9528 continue; 9529 } 9530 9531 remote_ID = 0xffffffff; 9532 if (ulp_command != CMD_GEN_REQUEST64_CR) { 9533 remote_ID = did; 9534 } else { 9535 struct lpfc_nodelist *ndlp; 9536 ndlp = __lpfc_findnode_rpi(vport, ulp_context); 9537 if (ndlp) 9538 remote_ID = ndlp->nlp_DID; 9539 } 9540 list_add_tail(&piocb->dlist, &abort_list); 9541 } 9542 if (phba->sli_rev == LPFC_SLI_REV4) 9543 spin_unlock(&pring->ring_lock); 9544 spin_unlock_irq(&phba->hbalock); 9545 9546 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { 9547 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9548 "0127 ELS timeout Data: x%x x%x x%x " 9549 "x%x\n", els_command, 9550 remote_ID, ulp_command, iotag); 9551 9552 spin_lock_irq(&phba->hbalock); 9553 list_del_init(&piocb->dlist); 9554 lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL); 9555 spin_unlock_irq(&phba->hbalock); 9556 } 9557 9558 /* Make sure HBA is alive */ 9559 lpfc_issue_hb_tmo(phba); 9560 9561 if (!list_empty(&pring->txcmplq)) 9562 if (!(phba->pport->load_flag & FC_UNLOADING)) 9563 mod_timer(&vport->els_tmofunc, 9564 jiffies + msecs_to_jiffies(1000 * timeout)); 9565 } 9566 9567 /** 9568 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport 9569 * @vport: pointer to a host virtual N_Port data structure. 9570 * 9571 * This routine is used to clean up all the outstanding ELS commands on a 9572 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport() 9573 * routine. After that, it walks the ELS transmit queue to remove all the 9574 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For 9575 * the IOCBs with a non-NULL completion callback function, the callback 9576 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and 9577 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion 9578 * callback function, the IOCB will simply be released. Finally, it walks 9579 * the ELS transmit completion queue to issue an abort IOCB to any transmit 9580 * completion queue IOCB that is associated with the @vport and is not 9581 * an IOCB from libdfc (i.e., the management plane IOCBs that are not 9582 * part of the discovery state machine) out to HBA by invoking the 9583 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the 9584 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee 9585 * the IOCBs are aborted when this function returns. 9586 **/ 9587 void 9588 lpfc_els_flush_cmd(struct lpfc_vport *vport) 9589 { 9590 LIST_HEAD(abort_list); 9591 struct lpfc_hba *phba = vport->phba; 9592 struct lpfc_sli_ring *pring; 9593 struct lpfc_iocbq *tmp_iocb, *piocb; 9594 u32 ulp_command; 9595 unsigned long iflags = 0; 9596 9597 lpfc_fabric_abort_vport(vport); 9598 9599 /* 9600 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate 9601 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag 9602 * ultimately grabs the ring_lock, the driver must splice the list into 9603 * a working list and release the locks before calling the abort. 9604 */ 9605 spin_lock_irqsave(&phba->hbalock, iflags); 9606 pring = lpfc_phba_elsring(phba); 9607 9608 /* Bail out if we've no ELS wq, like in PCI error recovery case. */ 9609 if (unlikely(!pring)) { 9610 spin_unlock_irqrestore(&phba->hbalock, iflags); 9611 return; 9612 } 9613 9614 if (phba->sli_rev == LPFC_SLI_REV4) 9615 spin_lock(&pring->ring_lock); 9616 9617 /* First we need to issue aborts to outstanding cmds on txcmpl */ 9618 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { 9619 if (piocb->cmd_flag & LPFC_IO_LIBDFC) 9620 continue; 9621 9622 if (piocb->vport != vport) 9623 continue; 9624 9625 if (piocb->cmd_flag & LPFC_DRIVER_ABORTED) 9626 continue; 9627 9628 /* On the ELS ring we can have ELS_REQUESTs or 9629 * GEN_REQUESTs waiting for a response. 9630 */ 9631 ulp_command = get_job_cmnd(phba, piocb); 9632 if (ulp_command == CMD_ELS_REQUEST64_CR) { 9633 list_add_tail(&piocb->dlist, &abort_list); 9634 9635 /* If the link is down when flushing ELS commands 9636 * the firmware will not complete them till after 9637 * the link comes back up. This may confuse 9638 * discovery for the new link up, so we need to 9639 * change the compl routine to just clean up the iocb 9640 * and avoid any retry logic. 9641 */ 9642 if (phba->link_state == LPFC_LINK_DOWN) 9643 piocb->cmd_cmpl = lpfc_cmpl_els_link_down; 9644 } 9645 if (ulp_command == CMD_GEN_REQUEST64_CR) 9646 list_add_tail(&piocb->dlist, &abort_list); 9647 } 9648 9649 if (phba->sli_rev == LPFC_SLI_REV4) 9650 spin_unlock(&pring->ring_lock); 9651 spin_unlock_irqrestore(&phba->hbalock, iflags); 9652 9653 /* Abort each txcmpl iocb on aborted list and remove the dlist links. */ 9654 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { 9655 spin_lock_irqsave(&phba->hbalock, iflags); 9656 list_del_init(&piocb->dlist); 9657 lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL); 9658 spin_unlock_irqrestore(&phba->hbalock, iflags); 9659 } 9660 /* Make sure HBA is alive */ 9661 lpfc_issue_hb_tmo(phba); 9662 9663 if (!list_empty(&abort_list)) 9664 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9665 "3387 abort list for txq not empty\n"); 9666 INIT_LIST_HEAD(&abort_list); 9667 9668 spin_lock_irqsave(&phba->hbalock, iflags); 9669 if (phba->sli_rev == LPFC_SLI_REV4) 9670 spin_lock(&pring->ring_lock); 9671 9672 /* No need to abort the txq list, 9673 * just queue them up for lpfc_sli_cancel_iocbs 9674 */ 9675 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { 9676 ulp_command = get_job_cmnd(phba, piocb); 9677 9678 if (piocb->cmd_flag & LPFC_IO_LIBDFC) 9679 continue; 9680 9681 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ 9682 if (ulp_command == CMD_QUE_RING_BUF_CN || 9683 ulp_command == CMD_QUE_RING_BUF64_CN || 9684 ulp_command == CMD_CLOSE_XRI_CN || 9685 ulp_command == CMD_ABORT_XRI_CN || 9686 ulp_command == CMD_ABORT_XRI_CX) 9687 continue; 9688 9689 if (piocb->vport != vport) 9690 continue; 9691 9692 list_del_init(&piocb->list); 9693 list_add_tail(&piocb->list, &abort_list); 9694 } 9695 9696 /* The same holds true for any FLOGI/FDISC on the fabric_iocb_list */ 9697 if (vport == phba->pport) { 9698 list_for_each_entry_safe(piocb, tmp_iocb, 9699 &phba->fabric_iocb_list, list) { 9700 list_del_init(&piocb->list); 9701 list_add_tail(&piocb->list, &abort_list); 9702 } 9703 } 9704 9705 if (phba->sli_rev == LPFC_SLI_REV4) 9706 spin_unlock(&pring->ring_lock); 9707 spin_unlock_irqrestore(&phba->hbalock, iflags); 9708 9709 /* Cancel all the IOCBs from the completions list */ 9710 lpfc_sli_cancel_iocbs(phba, &abort_list, 9711 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 9712 9713 return; 9714 } 9715 9716 /** 9717 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA 9718 * @phba: pointer to lpfc hba data structure. 9719 * 9720 * This routine is used to clean up all the outstanding ELS commands on a 9721 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba() 9722 * routine. After that, it walks the ELS transmit queue to remove all the 9723 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For 9724 * the IOCBs with the completion callback function associated, the callback 9725 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and 9726 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion 9727 * callback function associated, the IOCB will simply be released. Finally, 9728 * it walks the ELS transmit completion queue to issue an abort IOCB to any 9729 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the 9730 * management plane IOCBs that are not part of the discovery state machine) 9731 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine. 9732 **/ 9733 void 9734 lpfc_els_flush_all_cmd(struct lpfc_hba *phba) 9735 { 9736 struct lpfc_vport *vport; 9737 9738 spin_lock_irq(&phba->port_list_lock); 9739 list_for_each_entry(vport, &phba->port_list, listentry) 9740 lpfc_els_flush_cmd(vport); 9741 spin_unlock_irq(&phba->port_list_lock); 9742 9743 return; 9744 } 9745 9746 /** 9747 * lpfc_send_els_failure_event - Posts an ELS command failure event 9748 * @phba: Pointer to hba context object. 9749 * @cmdiocbp: Pointer to command iocb which reported error. 9750 * @rspiocbp: Pointer to response iocb which reported error. 9751 * 9752 * This function sends an event when there is an ELS command 9753 * failure. 9754 **/ 9755 void 9756 lpfc_send_els_failure_event(struct lpfc_hba *phba, 9757 struct lpfc_iocbq *cmdiocbp, 9758 struct lpfc_iocbq *rspiocbp) 9759 { 9760 struct lpfc_vport *vport = cmdiocbp->vport; 9761 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 9762 struct lpfc_lsrjt_event lsrjt_event; 9763 struct lpfc_fabric_event_header fabric_event; 9764 struct ls_rjt stat; 9765 struct lpfc_nodelist *ndlp; 9766 uint32_t *pcmd; 9767 u32 ulp_status, ulp_word4; 9768 9769 ndlp = cmdiocbp->ndlp; 9770 if (!ndlp) 9771 return; 9772 9773 ulp_status = get_job_ulpstatus(phba, rspiocbp); 9774 ulp_word4 = get_job_word4(phba, rspiocbp); 9775 9776 if (ulp_status == IOSTAT_LS_RJT) { 9777 lsrjt_event.header.event_type = FC_REG_ELS_EVENT; 9778 lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV; 9779 memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname, 9780 sizeof(struct lpfc_name)); 9781 memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename, 9782 sizeof(struct lpfc_name)); 9783 pcmd = (uint32_t *)cmdiocbp->cmd_dmabuf->virt; 9784 lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0; 9785 stat.un.ls_rjt_error_be = cpu_to_be32(ulp_word4); 9786 lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode; 9787 lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp; 9788 fc_host_post_vendor_event(shost, 9789 fc_get_event_number(), 9790 sizeof(lsrjt_event), 9791 (char *)&lsrjt_event, 9792 LPFC_NL_VENDOR_ID); 9793 return; 9794 } 9795 if (ulp_status == IOSTAT_NPORT_BSY || 9796 ulp_status == IOSTAT_FABRIC_BSY) { 9797 fabric_event.event_type = FC_REG_FABRIC_EVENT; 9798 if (ulp_status == IOSTAT_NPORT_BSY) 9799 fabric_event.subcategory = LPFC_EVENT_PORT_BUSY; 9800 else 9801 fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY; 9802 memcpy(fabric_event.wwpn, &ndlp->nlp_portname, 9803 sizeof(struct lpfc_name)); 9804 memcpy(fabric_event.wwnn, &ndlp->nlp_nodename, 9805 sizeof(struct lpfc_name)); 9806 fc_host_post_vendor_event(shost, 9807 fc_get_event_number(), 9808 sizeof(fabric_event), 9809 (char *)&fabric_event, 9810 LPFC_NL_VENDOR_ID); 9811 return; 9812 } 9813 9814 } 9815 9816 /** 9817 * lpfc_send_els_event - Posts unsolicited els event 9818 * @vport: Pointer to vport object. 9819 * @ndlp: Pointer FC node object. 9820 * @payload: ELS command code type. 9821 * 9822 * This function posts an event when there is an incoming 9823 * unsolicited ELS command. 9824 **/ 9825 static void 9826 lpfc_send_els_event(struct lpfc_vport *vport, 9827 struct lpfc_nodelist *ndlp, 9828 uint32_t *payload) 9829 { 9830 struct lpfc_els_event_header *els_data = NULL; 9831 struct lpfc_logo_event *logo_data = NULL; 9832 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 9833 9834 if (*payload == ELS_CMD_LOGO) { 9835 logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL); 9836 if (!logo_data) { 9837 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9838 "0148 Failed to allocate memory " 9839 "for LOGO event\n"); 9840 return; 9841 } 9842 els_data = &logo_data->header; 9843 } else { 9844 els_data = kmalloc(sizeof(struct lpfc_els_event_header), 9845 GFP_KERNEL); 9846 if (!els_data) { 9847 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9848 "0149 Failed to allocate memory " 9849 "for ELS event\n"); 9850 return; 9851 } 9852 } 9853 els_data->event_type = FC_REG_ELS_EVENT; 9854 switch (*payload) { 9855 case ELS_CMD_PLOGI: 9856 els_data->subcategory = LPFC_EVENT_PLOGI_RCV; 9857 break; 9858 case ELS_CMD_PRLO: 9859 els_data->subcategory = LPFC_EVENT_PRLO_RCV; 9860 break; 9861 case ELS_CMD_ADISC: 9862 els_data->subcategory = LPFC_EVENT_ADISC_RCV; 9863 break; 9864 case ELS_CMD_LOGO: 9865 els_data->subcategory = LPFC_EVENT_LOGO_RCV; 9866 /* Copy the WWPN in the LOGO payload */ 9867 memcpy(logo_data->logo_wwpn, &payload[2], 9868 sizeof(struct lpfc_name)); 9869 break; 9870 default: 9871 kfree(els_data); 9872 return; 9873 } 9874 memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); 9875 memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); 9876 if (*payload == ELS_CMD_LOGO) { 9877 fc_host_post_vendor_event(shost, 9878 fc_get_event_number(), 9879 sizeof(struct lpfc_logo_event), 9880 (char *)logo_data, 9881 LPFC_NL_VENDOR_ID); 9882 kfree(logo_data); 9883 } else { 9884 fc_host_post_vendor_event(shost, 9885 fc_get_event_number(), 9886 sizeof(struct lpfc_els_event_header), 9887 (char *)els_data, 9888 LPFC_NL_VENDOR_ID); 9889 kfree(els_data); 9890 } 9891 9892 return; 9893 } 9894 9895 9896 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_li_event_nm, fc_fpin_li_event_types, 9897 FC_FPIN_LI_EVT_TYPES_INIT); 9898 9899 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_deli_event_nm, fc_fpin_deli_event_types, 9900 FC_FPIN_DELI_EVT_TYPES_INIT); 9901 9902 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_congn_event_nm, fc_fpin_congn_event_types, 9903 FC_FPIN_CONGN_EVT_TYPES_INIT); 9904 9905 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_congn_severity_nm, 9906 fc_fpin_congn_severity_types, 9907 FC_FPIN_CONGN_SEVERITY_INIT); 9908 9909 9910 /** 9911 * lpfc_display_fpin_wwpn - Display WWPNs accessible by the attached port 9912 * @phba: Pointer to phba object. 9913 * @wwnlist: Pointer to list of WWPNs in FPIN payload 9914 * @cnt: count of WWPNs in FPIN payload 9915 * 9916 * This routine is called by LI and PC descriptors. 9917 * Limit the number of WWPNs displayed to 6 log messages, 6 per log message 9918 */ 9919 static void 9920 lpfc_display_fpin_wwpn(struct lpfc_hba *phba, __be64 *wwnlist, u32 cnt) 9921 { 9922 char buf[LPFC_FPIN_WWPN_LINE_SZ]; 9923 __be64 wwn; 9924 u64 wwpn; 9925 int i, len; 9926 int line = 0; 9927 int wcnt = 0; 9928 bool endit = false; 9929 9930 len = scnprintf(buf, LPFC_FPIN_WWPN_LINE_SZ, "Accessible WWPNs:"); 9931 for (i = 0; i < cnt; i++) { 9932 /* Are we on the last WWPN */ 9933 if (i == (cnt - 1)) 9934 endit = true; 9935 9936 /* Extract the next WWPN from the payload */ 9937 wwn = *wwnlist++; 9938 wwpn = be64_to_cpu(wwn); 9939 len += scnprintf(buf + len, LPFC_FPIN_WWPN_LINE_SZ - len, 9940 " %016llx", wwpn); 9941 9942 /* Log a message if we are on the last WWPN 9943 * or if we hit the max allowed per message. 9944 */ 9945 wcnt++; 9946 if (wcnt == LPFC_FPIN_WWPN_LINE_CNT || endit) { 9947 buf[len] = 0; 9948 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 9949 "4686 %s\n", buf); 9950 9951 /* Check if we reached the last WWPN */ 9952 if (endit) 9953 return; 9954 9955 /* Limit the number of log message displayed per FPIN */ 9956 line++; 9957 if (line == LPFC_FPIN_WWPN_NUM_LINE) { 9958 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 9959 "4687 %d WWPNs Truncated\n", 9960 cnt - i - 1); 9961 return; 9962 } 9963 9964 /* Start over with next log message */ 9965 wcnt = 0; 9966 len = scnprintf(buf, LPFC_FPIN_WWPN_LINE_SZ, 9967 "Additional WWPNs:"); 9968 } 9969 } 9970 } 9971 9972 /** 9973 * lpfc_els_rcv_fpin_li - Process an FPIN Link Integrity Event. 9974 * @phba: Pointer to phba object. 9975 * @tlv: Pointer to the Link Integrity Notification Descriptor. 9976 * 9977 * This function processes a Link Integrity FPIN event by logging a message. 9978 **/ 9979 static void 9980 lpfc_els_rcv_fpin_li(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 9981 { 9982 struct fc_fn_li_desc *li = (struct fc_fn_li_desc *)tlv; 9983 const char *li_evt_str; 9984 u32 li_evt, cnt; 9985 9986 li_evt = be16_to_cpu(li->event_type); 9987 li_evt_str = lpfc_get_fpin_li_event_nm(li_evt); 9988 cnt = be32_to_cpu(li->pname_count); 9989 9990 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 9991 "4680 FPIN Link Integrity %s (x%x) " 9992 "Detecting PN x%016llx Attached PN x%016llx " 9993 "Duration %d mSecs Count %d Port Cnt %d\n", 9994 li_evt_str, li_evt, 9995 be64_to_cpu(li->detecting_wwpn), 9996 be64_to_cpu(li->attached_wwpn), 9997 be32_to_cpu(li->event_threshold), 9998 be32_to_cpu(li->event_count), cnt); 9999 10000 lpfc_display_fpin_wwpn(phba, (__be64 *)&li->pname_list, cnt); 10001 } 10002 10003 /** 10004 * lpfc_els_rcv_fpin_del - Process an FPIN Delivery Event. 10005 * @phba: Pointer to hba object. 10006 * @tlv: Pointer to the Delivery Notification Descriptor TLV 10007 * 10008 * This function processes a Delivery FPIN event by logging a message. 10009 **/ 10010 static void 10011 lpfc_els_rcv_fpin_del(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 10012 { 10013 struct fc_fn_deli_desc *del = (struct fc_fn_deli_desc *)tlv; 10014 const char *del_rsn_str; 10015 u32 del_rsn; 10016 __be32 *frame; 10017 10018 del_rsn = be16_to_cpu(del->deli_reason_code); 10019 del_rsn_str = lpfc_get_fpin_deli_event_nm(del_rsn); 10020 10021 /* Skip over desc_tag/desc_len header to payload */ 10022 frame = (__be32 *)(del + 1); 10023 10024 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 10025 "4681 FPIN Delivery %s (x%x) " 10026 "Detecting PN x%016llx Attached PN x%016llx " 10027 "DiscHdr0 x%08x " 10028 "DiscHdr1 x%08x DiscHdr2 x%08x DiscHdr3 x%08x " 10029 "DiscHdr4 x%08x DiscHdr5 x%08x\n", 10030 del_rsn_str, del_rsn, 10031 be64_to_cpu(del->detecting_wwpn), 10032 be64_to_cpu(del->attached_wwpn), 10033 be32_to_cpu(frame[0]), 10034 be32_to_cpu(frame[1]), 10035 be32_to_cpu(frame[2]), 10036 be32_to_cpu(frame[3]), 10037 be32_to_cpu(frame[4]), 10038 be32_to_cpu(frame[5])); 10039 } 10040 10041 /** 10042 * lpfc_els_rcv_fpin_peer_cgn - Process a FPIN Peer Congestion Event. 10043 * @phba: Pointer to hba object. 10044 * @tlv: Pointer to the Peer Congestion Notification Descriptor TLV 10045 * 10046 * This function processes a Peer Congestion FPIN event by logging a message. 10047 **/ 10048 static void 10049 lpfc_els_rcv_fpin_peer_cgn(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 10050 { 10051 struct fc_fn_peer_congn_desc *pc = (struct fc_fn_peer_congn_desc *)tlv; 10052 const char *pc_evt_str; 10053 u32 pc_evt, cnt; 10054 10055 pc_evt = be16_to_cpu(pc->event_type); 10056 pc_evt_str = lpfc_get_fpin_congn_event_nm(pc_evt); 10057 cnt = be32_to_cpu(pc->pname_count); 10058 10059 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_ELS, 10060 "4684 FPIN Peer Congestion %s (x%x) " 10061 "Duration %d mSecs " 10062 "Detecting PN x%016llx Attached PN x%016llx " 10063 "Impacted Port Cnt %d\n", 10064 pc_evt_str, pc_evt, 10065 be32_to_cpu(pc->event_period), 10066 be64_to_cpu(pc->detecting_wwpn), 10067 be64_to_cpu(pc->attached_wwpn), 10068 cnt); 10069 10070 lpfc_display_fpin_wwpn(phba, (__be64 *)&pc->pname_list, cnt); 10071 } 10072 10073 /** 10074 * lpfc_els_rcv_fpin_cgn - Process an FPIN Congestion notification 10075 * @phba: Pointer to hba object. 10076 * @tlv: Pointer to the Congestion Notification Descriptor TLV 10077 * 10078 * This function processes an FPIN Congestion Notifiction. The notification 10079 * could be an Alarm or Warning. This routine feeds that data into driver's 10080 * running congestion algorithm. It also processes the FPIN by 10081 * logging a message. It returns 1 to indicate deliver this message 10082 * to the upper layer or 0 to indicate don't deliver it. 10083 **/ 10084 static int 10085 lpfc_els_rcv_fpin_cgn(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 10086 { 10087 struct lpfc_cgn_info *cp; 10088 struct fc_fn_congn_desc *cgn = (struct fc_fn_congn_desc *)tlv; 10089 const char *cgn_evt_str; 10090 u32 cgn_evt; 10091 const char *cgn_sev_str; 10092 u32 cgn_sev; 10093 uint16_t value; 10094 u32 crc; 10095 bool nm_log = false; 10096 int rc = 1; 10097 10098 cgn_evt = be16_to_cpu(cgn->event_type); 10099 cgn_evt_str = lpfc_get_fpin_congn_event_nm(cgn_evt); 10100 cgn_sev = cgn->severity; 10101 cgn_sev_str = lpfc_get_fpin_congn_severity_nm(cgn_sev); 10102 10103 /* The driver only takes action on a Credit Stall or Oversubscription 10104 * event type to engage the IO algorithm. The driver prints an 10105 * unmaskable message only for Lost Credit and Credit Stall. 10106 * TODO: Still need to have definition of host action on clear, 10107 * lost credit and device specific event types. 10108 */ 10109 switch (cgn_evt) { 10110 case FPIN_CONGN_LOST_CREDIT: 10111 nm_log = true; 10112 break; 10113 case FPIN_CONGN_CREDIT_STALL: 10114 nm_log = true; 10115 fallthrough; 10116 case FPIN_CONGN_OVERSUBSCRIPTION: 10117 if (cgn_evt == FPIN_CONGN_OVERSUBSCRIPTION) 10118 nm_log = false; 10119 switch (cgn_sev) { 10120 case FPIN_CONGN_SEVERITY_ERROR: 10121 /* Take action here for an Alarm event */ 10122 if (phba->cmf_active_mode != LPFC_CFG_OFF) { 10123 if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) { 10124 /* Track of alarm cnt for SYNC_WQE */ 10125 atomic_inc(&phba->cgn_sync_alarm_cnt); 10126 } 10127 /* Track alarm cnt for cgn_info regardless 10128 * of whether CMF is configured for Signals 10129 * or FPINs. 10130 */ 10131 atomic_inc(&phba->cgn_fabric_alarm_cnt); 10132 goto cleanup; 10133 } 10134 break; 10135 case FPIN_CONGN_SEVERITY_WARNING: 10136 /* Take action here for a Warning event */ 10137 if (phba->cmf_active_mode != LPFC_CFG_OFF) { 10138 if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) { 10139 /* Track of warning cnt for SYNC_WQE */ 10140 atomic_inc(&phba->cgn_sync_warn_cnt); 10141 } 10142 /* Track warning cnt and freq for cgn_info 10143 * regardless of whether CMF is configured for 10144 * Signals or FPINs. 10145 */ 10146 atomic_inc(&phba->cgn_fabric_warn_cnt); 10147 cleanup: 10148 /* Save frequency in ms */ 10149 phba->cgn_fpin_frequency = 10150 be32_to_cpu(cgn->event_period); 10151 value = phba->cgn_fpin_frequency; 10152 if (phba->cgn_i) { 10153 cp = (struct lpfc_cgn_info *) 10154 phba->cgn_i->virt; 10155 cp->cgn_alarm_freq = 10156 cpu_to_le16(value); 10157 cp->cgn_warn_freq = 10158 cpu_to_le16(value); 10159 crc = lpfc_cgn_calc_crc32 10160 (cp, 10161 LPFC_CGN_INFO_SZ, 10162 LPFC_CGN_CRC32_SEED); 10163 cp->cgn_info_crc = cpu_to_le32(crc); 10164 } 10165 10166 /* Don't deliver to upper layer since 10167 * driver took action on this tlv. 10168 */ 10169 rc = 0; 10170 } 10171 break; 10172 } 10173 break; 10174 } 10175 10176 /* Change the log level to unmaskable for the following event types. */ 10177 lpfc_printf_log(phba, (nm_log ? KERN_WARNING : KERN_INFO), 10178 LOG_CGN_MGMT | LOG_ELS, 10179 "4683 FPIN CONGESTION %s type %s (x%x) Event " 10180 "Duration %d mSecs\n", 10181 cgn_sev_str, cgn_evt_str, cgn_evt, 10182 be32_to_cpu(cgn->event_period)); 10183 return rc; 10184 } 10185 10186 void 10187 lpfc_els_rcv_fpin(struct lpfc_vport *vport, void *p, u32 fpin_length) 10188 { 10189 struct lpfc_hba *phba = vport->phba; 10190 struct fc_els_fpin *fpin = (struct fc_els_fpin *)p; 10191 struct fc_tlv_desc *tlv, *first_tlv, *current_tlv; 10192 const char *dtag_nm; 10193 int desc_cnt = 0, bytes_remain, cnt; 10194 u32 dtag, deliver = 0; 10195 int len; 10196 10197 /* FPINs handled only if we are in the right discovery state */ 10198 if (vport->port_state < LPFC_DISC_AUTH) 10199 return; 10200 10201 /* make sure there is the full fpin header */ 10202 if (fpin_length < sizeof(struct fc_els_fpin)) 10203 return; 10204 10205 /* Sanity check descriptor length. The desc_len value does not 10206 * include space for the ELS command and the desc_len fields. 10207 */ 10208 len = be32_to_cpu(fpin->desc_len); 10209 if (fpin_length < len + sizeof(struct fc_els_fpin)) { 10210 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 10211 "4671 Bad ELS FPIN length %d: %d\n", 10212 len, fpin_length); 10213 return; 10214 } 10215 10216 tlv = (struct fc_tlv_desc *)&fpin->fpin_desc[0]; 10217 first_tlv = tlv; 10218 bytes_remain = fpin_length - offsetof(struct fc_els_fpin, fpin_desc); 10219 bytes_remain = min_t(u32, bytes_remain, be32_to_cpu(fpin->desc_len)); 10220 10221 /* process each descriptor separately */ 10222 while (bytes_remain >= FC_TLV_DESC_HDR_SZ && 10223 bytes_remain >= FC_TLV_DESC_SZ_FROM_LENGTH(tlv)) { 10224 dtag = be32_to_cpu(tlv->desc_tag); 10225 switch (dtag) { 10226 case ELS_DTAG_LNK_INTEGRITY: 10227 lpfc_els_rcv_fpin_li(phba, tlv); 10228 deliver = 1; 10229 break; 10230 case ELS_DTAG_DELIVERY: 10231 lpfc_els_rcv_fpin_del(phba, tlv); 10232 deliver = 1; 10233 break; 10234 case ELS_DTAG_PEER_CONGEST: 10235 lpfc_els_rcv_fpin_peer_cgn(phba, tlv); 10236 deliver = 1; 10237 break; 10238 case ELS_DTAG_CONGESTION: 10239 deliver = lpfc_els_rcv_fpin_cgn(phba, tlv); 10240 break; 10241 default: 10242 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 10243 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 10244 "4678 unknown FPIN descriptor[%d]: " 10245 "tag x%x (%s)\n", 10246 desc_cnt, dtag, dtag_nm); 10247 10248 /* If descriptor is bad, drop the rest of the data */ 10249 return; 10250 } 10251 lpfc_cgn_update_stat(phba, dtag); 10252 cnt = be32_to_cpu(tlv->desc_len); 10253 10254 /* Sanity check descriptor length. The desc_len value does not 10255 * include space for the desc_tag and the desc_len fields. 10256 */ 10257 len -= (cnt + sizeof(struct fc_tlv_desc)); 10258 if (len < 0) { 10259 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 10260 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 10261 "4672 Bad FPIN descriptor TLV length " 10262 "%d: %d %d %s\n", 10263 cnt, len, fpin_length, dtag_nm); 10264 return; 10265 } 10266 10267 current_tlv = tlv; 10268 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv); 10269 tlv = fc_tlv_next_desc(tlv); 10270 10271 /* Format payload such that the FPIN delivered to the 10272 * upper layer is a single descriptor FPIN. 10273 */ 10274 if (desc_cnt) 10275 memcpy(first_tlv, current_tlv, 10276 (cnt + sizeof(struct fc_els_fpin))); 10277 10278 /* Adjust the length so that it only reflects a 10279 * single descriptor FPIN. 10280 */ 10281 fpin_length = cnt + sizeof(struct fc_els_fpin); 10282 fpin->desc_len = cpu_to_be32(fpin_length); 10283 fpin_length += sizeof(struct fc_els_fpin); /* the entire FPIN */ 10284 10285 /* Send every descriptor individually to the upper layer */ 10286 if (deliver) 10287 fc_host_fpin_rcv(lpfc_shost_from_vport(vport), 10288 fpin_length, (char *)fpin, 0); 10289 desc_cnt++; 10290 } 10291 } 10292 10293 /** 10294 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer 10295 * @phba: pointer to lpfc hba data structure. 10296 * @pring: pointer to a SLI ring. 10297 * @vport: pointer to a host virtual N_Port data structure. 10298 * @elsiocb: pointer to lpfc els command iocb data structure. 10299 * 10300 * This routine is used for processing the IOCB associated with a unsolicited 10301 * event. It first determines whether there is an existing ndlp that matches 10302 * the DID from the unsolicited IOCB. If not, it will create a new one with 10303 * the DID from the unsolicited IOCB. The ELS command from the unsolicited 10304 * IOCB is then used to invoke the proper routine and to set up proper state 10305 * of the discovery state machine. 10306 **/ 10307 static void 10308 lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 10309 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) 10310 { 10311 struct lpfc_nodelist *ndlp; 10312 struct ls_rjt stat; 10313 u32 *payload, payload_len; 10314 u32 cmd = 0, did = 0, newnode, status = 0; 10315 uint8_t rjt_exp, rjt_err = 0, init_link = 0; 10316 struct lpfc_wcqe_complete *wcqe_cmpl = NULL; 10317 LPFC_MBOXQ_t *mbox; 10318 10319 if (!vport || !elsiocb->cmd_dmabuf) 10320 goto dropit; 10321 10322 newnode = 0; 10323 wcqe_cmpl = &elsiocb->wcqe_cmpl; 10324 payload = elsiocb->cmd_dmabuf->virt; 10325 if (phba->sli_rev == LPFC_SLI_REV4) 10326 payload_len = wcqe_cmpl->total_data_placed; 10327 else 10328 payload_len = elsiocb->iocb.unsli3.rcvsli3.acc_len; 10329 status = get_job_ulpstatus(phba, elsiocb); 10330 cmd = *payload; 10331 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) 10332 lpfc_sli3_post_buffer(phba, pring, 1); 10333 10334 did = get_job_els_rsp64_did(phba, elsiocb); 10335 if (status) { 10336 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10337 "RCV Unsol ELS: status:x%x/x%x did:x%x", 10338 status, get_job_word4(phba, elsiocb), did); 10339 goto dropit; 10340 } 10341 10342 /* Check to see if link went down during discovery */ 10343 if (lpfc_els_chk_latt(vport)) 10344 goto dropit; 10345 10346 /* Ignore traffic received during vport shutdown. */ 10347 if (vport->load_flag & FC_UNLOADING) 10348 goto dropit; 10349 10350 /* If NPort discovery is delayed drop incoming ELS */ 10351 if ((vport->fc_flag & FC_DISC_DELAYED) && 10352 (cmd != ELS_CMD_PLOGI)) 10353 goto dropit; 10354 10355 ndlp = lpfc_findnode_did(vport, did); 10356 if (!ndlp) { 10357 /* Cannot find existing Fabric ndlp, so allocate a new one */ 10358 ndlp = lpfc_nlp_init(vport, did); 10359 if (!ndlp) 10360 goto dropit; 10361 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 10362 newnode = 1; 10363 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) 10364 ndlp->nlp_type |= NLP_FABRIC; 10365 } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 10366 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 10367 newnode = 1; 10368 } 10369 10370 phba->fc_stat.elsRcvFrame++; 10371 10372 /* 10373 * Do not process any unsolicited ELS commands 10374 * if the ndlp is in DEV_LOSS 10375 */ 10376 spin_lock_irq(&ndlp->lock); 10377 if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) { 10378 spin_unlock_irq(&ndlp->lock); 10379 if (newnode) 10380 lpfc_nlp_put(ndlp); 10381 goto dropit; 10382 } 10383 spin_unlock_irq(&ndlp->lock); 10384 10385 elsiocb->ndlp = lpfc_nlp_get(ndlp); 10386 if (!elsiocb->ndlp) 10387 goto dropit; 10388 elsiocb->vport = vport; 10389 10390 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { 10391 cmd &= ELS_CMD_MASK; 10392 } 10393 /* ELS command <elsCmd> received from NPORT <did> */ 10394 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 10395 "0112 ELS command x%x received from NPORT x%x " 10396 "refcnt %d Data: x%x x%x x%x x%x\n", 10397 cmd, did, kref_read(&ndlp->kref), vport->port_state, 10398 vport->fc_flag, vport->fc_myDID, vport->fc_prevDID); 10399 10400 /* reject till our FLOGI completes or PLOGI assigned DID via PT2PT */ 10401 if ((vport->port_state < LPFC_FABRIC_CFG_LINK) && 10402 (cmd != ELS_CMD_FLOGI) && 10403 !((cmd == ELS_CMD_PLOGI) && (vport->fc_flag & FC_PT2PT))) { 10404 rjt_err = LSRJT_LOGICAL_BSY; 10405 rjt_exp = LSEXP_NOTHING_MORE; 10406 goto lsrjt; 10407 } 10408 10409 switch (cmd) { 10410 case ELS_CMD_PLOGI: 10411 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10412 "RCV PLOGI: did:x%x/ste:x%x flg:x%x", 10413 did, vport->port_state, ndlp->nlp_flag); 10414 10415 phba->fc_stat.elsRcvPLOGI++; 10416 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); 10417 if (phba->sli_rev == LPFC_SLI_REV4 && 10418 (phba->pport->fc_flag & FC_PT2PT)) { 10419 vport->fc_prevDID = vport->fc_myDID; 10420 /* Our DID needs to be updated before registering 10421 * the vfi. This is done in lpfc_rcv_plogi but 10422 * that is called after the reg_vfi. 10423 */ 10424 vport->fc_myDID = 10425 bf_get(els_rsp64_sid, 10426 &elsiocb->wqe.xmit_els_rsp); 10427 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 10428 "3312 Remote port assigned DID x%x " 10429 "%x\n", vport->fc_myDID, 10430 vport->fc_prevDID); 10431 } 10432 10433 lpfc_send_els_event(vport, ndlp, payload); 10434 10435 /* If Nport discovery is delayed, reject PLOGIs */ 10436 if (vport->fc_flag & FC_DISC_DELAYED) { 10437 rjt_err = LSRJT_UNABLE_TPC; 10438 rjt_exp = LSEXP_NOTHING_MORE; 10439 break; 10440 } 10441 10442 if (vport->port_state < LPFC_DISC_AUTH) { 10443 if (!(phba->pport->fc_flag & FC_PT2PT) || 10444 (phba->pport->fc_flag & FC_PT2PT_PLOGI)) { 10445 rjt_err = LSRJT_UNABLE_TPC; 10446 rjt_exp = LSEXP_NOTHING_MORE; 10447 break; 10448 } 10449 } 10450 10451 spin_lock_irq(&ndlp->lock); 10452 ndlp->nlp_flag &= ~NLP_TARGET_REMOVE; 10453 spin_unlock_irq(&ndlp->lock); 10454 10455 lpfc_disc_state_machine(vport, ndlp, elsiocb, 10456 NLP_EVT_RCV_PLOGI); 10457 10458 break; 10459 case ELS_CMD_FLOGI: 10460 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10461 "RCV FLOGI: did:x%x/ste:x%x flg:x%x", 10462 did, vport->port_state, ndlp->nlp_flag); 10463 10464 phba->fc_stat.elsRcvFLOGI++; 10465 10466 /* If the driver believes fabric discovery is done and is ready, 10467 * bounce the link. There is some descrepancy. 10468 */ 10469 if (vport->port_state >= LPFC_LOCAL_CFG_LINK && 10470 vport->fc_flag & FC_PT2PT && 10471 vport->rcv_flogi_cnt >= 1) { 10472 rjt_err = LSRJT_LOGICAL_BSY; 10473 rjt_exp = LSEXP_NOTHING_MORE; 10474 init_link++; 10475 goto lsrjt; 10476 } 10477 10478 lpfc_els_rcv_flogi(vport, elsiocb, ndlp); 10479 /* retain node if our response is deferred */ 10480 if (phba->defer_flogi_acc_flag) 10481 break; 10482 if (newnode) 10483 lpfc_disc_state_machine(vport, ndlp, NULL, 10484 NLP_EVT_DEVICE_RM); 10485 break; 10486 case ELS_CMD_LOGO: 10487 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10488 "RCV LOGO: did:x%x/ste:x%x flg:x%x", 10489 did, vport->port_state, ndlp->nlp_flag); 10490 10491 phba->fc_stat.elsRcvLOGO++; 10492 lpfc_send_els_event(vport, ndlp, payload); 10493 if (vport->port_state < LPFC_DISC_AUTH) { 10494 rjt_err = LSRJT_UNABLE_TPC; 10495 rjt_exp = LSEXP_NOTHING_MORE; 10496 break; 10497 } 10498 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); 10499 if (newnode) 10500 lpfc_disc_state_machine(vport, ndlp, NULL, 10501 NLP_EVT_DEVICE_RM); 10502 break; 10503 case ELS_CMD_PRLO: 10504 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10505 "RCV PRLO: did:x%x/ste:x%x flg:x%x", 10506 did, vport->port_state, ndlp->nlp_flag); 10507 10508 phba->fc_stat.elsRcvPRLO++; 10509 lpfc_send_els_event(vport, ndlp, payload); 10510 if (vport->port_state < LPFC_DISC_AUTH) { 10511 rjt_err = LSRJT_UNABLE_TPC; 10512 rjt_exp = LSEXP_NOTHING_MORE; 10513 break; 10514 } 10515 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); 10516 break; 10517 case ELS_CMD_LCB: 10518 phba->fc_stat.elsRcvLCB++; 10519 lpfc_els_rcv_lcb(vport, elsiocb, ndlp); 10520 break; 10521 case ELS_CMD_RDP: 10522 phba->fc_stat.elsRcvRDP++; 10523 lpfc_els_rcv_rdp(vport, elsiocb, ndlp); 10524 break; 10525 case ELS_CMD_RSCN: 10526 phba->fc_stat.elsRcvRSCN++; 10527 lpfc_els_rcv_rscn(vport, elsiocb, ndlp); 10528 if (newnode) 10529 lpfc_disc_state_machine(vport, ndlp, NULL, 10530 NLP_EVT_DEVICE_RM); 10531 break; 10532 case ELS_CMD_ADISC: 10533 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10534 "RCV ADISC: did:x%x/ste:x%x flg:x%x", 10535 did, vport->port_state, ndlp->nlp_flag); 10536 10537 lpfc_send_els_event(vport, ndlp, payload); 10538 phba->fc_stat.elsRcvADISC++; 10539 if (vport->port_state < LPFC_DISC_AUTH) { 10540 rjt_err = LSRJT_UNABLE_TPC; 10541 rjt_exp = LSEXP_NOTHING_MORE; 10542 break; 10543 } 10544 lpfc_disc_state_machine(vport, ndlp, elsiocb, 10545 NLP_EVT_RCV_ADISC); 10546 break; 10547 case ELS_CMD_PDISC: 10548 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10549 "RCV PDISC: did:x%x/ste:x%x flg:x%x", 10550 did, vport->port_state, ndlp->nlp_flag); 10551 10552 phba->fc_stat.elsRcvPDISC++; 10553 if (vport->port_state < LPFC_DISC_AUTH) { 10554 rjt_err = LSRJT_UNABLE_TPC; 10555 rjt_exp = LSEXP_NOTHING_MORE; 10556 break; 10557 } 10558 lpfc_disc_state_machine(vport, ndlp, elsiocb, 10559 NLP_EVT_RCV_PDISC); 10560 break; 10561 case ELS_CMD_FARPR: 10562 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10563 "RCV FARPR: did:x%x/ste:x%x flg:x%x", 10564 did, vport->port_state, ndlp->nlp_flag); 10565 10566 phba->fc_stat.elsRcvFARPR++; 10567 lpfc_els_rcv_farpr(vport, elsiocb, ndlp); 10568 break; 10569 case ELS_CMD_FARP: 10570 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10571 "RCV FARP: did:x%x/ste:x%x flg:x%x", 10572 did, vport->port_state, ndlp->nlp_flag); 10573 10574 phba->fc_stat.elsRcvFARP++; 10575 lpfc_els_rcv_farp(vport, elsiocb, ndlp); 10576 break; 10577 case ELS_CMD_FAN: 10578 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10579 "RCV FAN: did:x%x/ste:x%x flg:x%x", 10580 did, vport->port_state, ndlp->nlp_flag); 10581 10582 phba->fc_stat.elsRcvFAN++; 10583 lpfc_els_rcv_fan(vport, elsiocb, ndlp); 10584 break; 10585 case ELS_CMD_PRLI: 10586 case ELS_CMD_NVMEPRLI: 10587 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10588 "RCV PRLI: did:x%x/ste:x%x flg:x%x", 10589 did, vport->port_state, ndlp->nlp_flag); 10590 10591 phba->fc_stat.elsRcvPRLI++; 10592 if ((vport->port_state < LPFC_DISC_AUTH) && 10593 (vport->fc_flag & FC_FABRIC)) { 10594 rjt_err = LSRJT_UNABLE_TPC; 10595 rjt_exp = LSEXP_NOTHING_MORE; 10596 break; 10597 } 10598 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); 10599 break; 10600 case ELS_CMD_LIRR: 10601 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10602 "RCV LIRR: did:x%x/ste:x%x flg:x%x", 10603 did, vport->port_state, ndlp->nlp_flag); 10604 10605 phba->fc_stat.elsRcvLIRR++; 10606 lpfc_els_rcv_lirr(vport, elsiocb, ndlp); 10607 if (newnode) 10608 lpfc_disc_state_machine(vport, ndlp, NULL, 10609 NLP_EVT_DEVICE_RM); 10610 break; 10611 case ELS_CMD_RLS: 10612 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10613 "RCV RLS: did:x%x/ste:x%x flg:x%x", 10614 did, vport->port_state, ndlp->nlp_flag); 10615 10616 phba->fc_stat.elsRcvRLS++; 10617 lpfc_els_rcv_rls(vport, elsiocb, ndlp); 10618 if (newnode) 10619 lpfc_disc_state_machine(vport, ndlp, NULL, 10620 NLP_EVT_DEVICE_RM); 10621 break; 10622 case ELS_CMD_RPL: 10623 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10624 "RCV RPL: did:x%x/ste:x%x flg:x%x", 10625 did, vport->port_state, ndlp->nlp_flag); 10626 10627 phba->fc_stat.elsRcvRPL++; 10628 lpfc_els_rcv_rpl(vport, elsiocb, ndlp); 10629 if (newnode) 10630 lpfc_disc_state_machine(vport, ndlp, NULL, 10631 NLP_EVT_DEVICE_RM); 10632 break; 10633 case ELS_CMD_RNID: 10634 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10635 "RCV RNID: did:x%x/ste:x%x flg:x%x", 10636 did, vport->port_state, ndlp->nlp_flag); 10637 10638 phba->fc_stat.elsRcvRNID++; 10639 lpfc_els_rcv_rnid(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_RTV: 10645 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10646 "RCV RTV: did:x%x/ste:x%x flg:x%x", 10647 did, vport->port_state, ndlp->nlp_flag); 10648 phba->fc_stat.elsRcvRTV++; 10649 lpfc_els_rcv_rtv(vport, elsiocb, ndlp); 10650 if (newnode) 10651 lpfc_disc_state_machine(vport, ndlp, NULL, 10652 NLP_EVT_DEVICE_RM); 10653 break; 10654 case ELS_CMD_RRQ: 10655 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10656 "RCV RRQ: did:x%x/ste:x%x flg:x%x", 10657 did, vport->port_state, ndlp->nlp_flag); 10658 10659 phba->fc_stat.elsRcvRRQ++; 10660 lpfc_els_rcv_rrq(vport, elsiocb, ndlp); 10661 if (newnode) 10662 lpfc_disc_state_machine(vport, ndlp, NULL, 10663 NLP_EVT_DEVICE_RM); 10664 break; 10665 case ELS_CMD_ECHO: 10666 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10667 "RCV ECHO: did:x%x/ste:x%x flg:x%x", 10668 did, vport->port_state, ndlp->nlp_flag); 10669 10670 phba->fc_stat.elsRcvECHO++; 10671 lpfc_els_rcv_echo(vport, elsiocb, ndlp); 10672 if (newnode) 10673 lpfc_disc_state_machine(vport, ndlp, NULL, 10674 NLP_EVT_DEVICE_RM); 10675 break; 10676 case ELS_CMD_REC: 10677 /* receive this due to exchange closed */ 10678 rjt_err = LSRJT_UNABLE_TPC; 10679 rjt_exp = LSEXP_INVALID_OX_RX; 10680 break; 10681 case ELS_CMD_FPIN: 10682 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10683 "RCV FPIN: did:x%x/ste:x%x flg:x%x", 10684 did, vport->port_state, ndlp->nlp_flag); 10685 10686 lpfc_els_rcv_fpin(vport, (struct fc_els_fpin *)payload, 10687 payload_len); 10688 10689 /* There are no replies, so no rjt codes */ 10690 break; 10691 case ELS_CMD_EDC: 10692 lpfc_els_rcv_edc(vport, elsiocb, ndlp); 10693 break; 10694 case ELS_CMD_RDF: 10695 phba->fc_stat.elsRcvRDF++; 10696 /* Accept RDF only from fabric controller */ 10697 if (did != Fabric_Cntl_DID) { 10698 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS, 10699 "1115 Received RDF from invalid DID " 10700 "x%x\n", did); 10701 rjt_err = LSRJT_PROTOCOL_ERR; 10702 rjt_exp = LSEXP_NOTHING_MORE; 10703 goto lsrjt; 10704 } 10705 10706 lpfc_els_rcv_rdf(vport, elsiocb, ndlp); 10707 break; 10708 default: 10709 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10710 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", 10711 cmd, did, vport->port_state); 10712 10713 /* Unsupported ELS command, reject */ 10714 rjt_err = LSRJT_CMD_UNSUPPORTED; 10715 rjt_exp = LSEXP_NOTHING_MORE; 10716 10717 /* Unknown ELS command <elsCmd> received from NPORT <did> */ 10718 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10719 "0115 Unknown ELS command x%x " 10720 "received from NPORT x%x\n", cmd, did); 10721 if (newnode) 10722 lpfc_disc_state_machine(vport, ndlp, NULL, 10723 NLP_EVT_DEVICE_RM); 10724 break; 10725 } 10726 10727 lsrjt: 10728 /* check if need to LS_RJT received ELS cmd */ 10729 if (rjt_err) { 10730 memset(&stat, 0, sizeof(stat)); 10731 stat.un.b.lsRjtRsnCode = rjt_err; 10732 stat.un.b.lsRjtRsnCodeExp = rjt_exp; 10733 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, 10734 NULL); 10735 /* Remove the reference from above for new nodes. */ 10736 if (newnode) 10737 lpfc_disc_state_machine(vport, ndlp, NULL, 10738 NLP_EVT_DEVICE_RM); 10739 } 10740 10741 /* Release the reference on this elsiocb, not the ndlp. */ 10742 lpfc_nlp_put(elsiocb->ndlp); 10743 elsiocb->ndlp = NULL; 10744 10745 /* Special case. Driver received an unsolicited command that 10746 * unsupportable given the driver's current state. Reset the 10747 * link and start over. 10748 */ 10749 if (init_link) { 10750 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 10751 if (!mbox) 10752 return; 10753 lpfc_linkdown(phba); 10754 lpfc_init_link(phba, mbox, 10755 phba->cfg_topology, 10756 phba->cfg_link_speed); 10757 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 10758 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 10759 mbox->vport = vport; 10760 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == 10761 MBX_NOT_FINISHED) 10762 mempool_free(mbox, phba->mbox_mem_pool); 10763 } 10764 10765 return; 10766 10767 dropit: 10768 if (vport && !(vport->load_flag & FC_UNLOADING)) 10769 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10770 "0111 Dropping received ELS cmd " 10771 "Data: x%x x%x x%x x%x\n", 10772 cmd, status, get_job_word4(phba, elsiocb), did); 10773 10774 phba->fc_stat.elsRcvDrop++; 10775 } 10776 10777 /** 10778 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring 10779 * @phba: pointer to lpfc hba data structure. 10780 * @pring: pointer to a SLI ring. 10781 * @elsiocb: pointer to lpfc els iocb data structure. 10782 * 10783 * This routine is used to process an unsolicited event received from a SLI 10784 * (Service Level Interface) ring. The actual processing of the data buffer 10785 * associated with the unsolicited event is done by invoking the routine 10786 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the 10787 * SLI ring on which the unsolicited event was received. 10788 **/ 10789 void 10790 lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 10791 struct lpfc_iocbq *elsiocb) 10792 { 10793 struct lpfc_vport *vport = elsiocb->vport; 10794 u32 ulp_command, status, parameter, bde_count = 0; 10795 IOCB_t *icmd; 10796 struct lpfc_wcqe_complete *wcqe_cmpl = NULL; 10797 struct lpfc_dmabuf *bdeBuf1 = elsiocb->cmd_dmabuf; 10798 struct lpfc_dmabuf *bdeBuf2 = elsiocb->bpl_dmabuf; 10799 dma_addr_t paddr; 10800 10801 elsiocb->cmd_dmabuf = NULL; 10802 elsiocb->rsp_dmabuf = NULL; 10803 elsiocb->bpl_dmabuf = NULL; 10804 10805 wcqe_cmpl = &elsiocb->wcqe_cmpl; 10806 ulp_command = get_job_cmnd(phba, elsiocb); 10807 status = get_job_ulpstatus(phba, elsiocb); 10808 parameter = get_job_word4(phba, elsiocb); 10809 if (phba->sli_rev == LPFC_SLI_REV4) 10810 bde_count = wcqe_cmpl->word3; 10811 else 10812 bde_count = elsiocb->iocb.ulpBdeCount; 10813 10814 if (status == IOSTAT_NEED_BUFFER) { 10815 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 10816 } else if (status == IOSTAT_LOCAL_REJECT && 10817 (parameter & IOERR_PARAM_MASK) == 10818 IOERR_RCV_BUFFER_WAITING) { 10819 phba->fc_stat.NoRcvBuf++; 10820 /* Not enough posted buffers; Try posting more buffers */ 10821 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) 10822 lpfc_sli3_post_buffer(phba, pring, 0); 10823 return; 10824 } 10825 10826 if (phba->sli_rev == LPFC_SLI_REV3) { 10827 icmd = &elsiocb->iocb; 10828 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 10829 (ulp_command == CMD_IOCB_RCV_ELS64_CX || 10830 ulp_command == CMD_IOCB_RCV_SEQ64_CX)) { 10831 if (icmd->unsli3.rcvsli3.vpi == 0xffff) 10832 vport = phba->pport; 10833 else 10834 vport = lpfc_find_vport_by_vpid(phba, 10835 icmd->unsli3.rcvsli3.vpi); 10836 } 10837 } 10838 10839 /* If there are no BDEs associated 10840 * with this IOCB, there is nothing to do. 10841 */ 10842 if (bde_count == 0) 10843 return; 10844 10845 /* Account for SLI2 or SLI3 and later unsolicited buffering */ 10846 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { 10847 elsiocb->cmd_dmabuf = bdeBuf1; 10848 if (bde_count == 2) 10849 elsiocb->bpl_dmabuf = bdeBuf2; 10850 } else { 10851 icmd = &elsiocb->iocb; 10852 paddr = getPaddr(icmd->un.cont64[0].addrHigh, 10853 icmd->un.cont64[0].addrLow); 10854 elsiocb->cmd_dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, 10855 paddr); 10856 if (bde_count == 2) { 10857 paddr = getPaddr(icmd->un.cont64[1].addrHigh, 10858 icmd->un.cont64[1].addrLow); 10859 elsiocb->bpl_dmabuf = lpfc_sli_ringpostbuf_get(phba, 10860 pring, 10861 paddr); 10862 } 10863 } 10864 10865 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); 10866 /* 10867 * The different unsolicited event handlers would tell us 10868 * if they are done with "mp" by setting cmd_dmabuf to NULL. 10869 */ 10870 if (elsiocb->cmd_dmabuf) { 10871 lpfc_in_buf_free(phba, elsiocb->cmd_dmabuf); 10872 elsiocb->cmd_dmabuf = NULL; 10873 } 10874 10875 if (elsiocb->bpl_dmabuf) { 10876 lpfc_in_buf_free(phba, elsiocb->bpl_dmabuf); 10877 elsiocb->bpl_dmabuf = NULL; 10878 } 10879 10880 } 10881 10882 static void 10883 lpfc_start_fdmi(struct lpfc_vport *vport) 10884 { 10885 struct lpfc_nodelist *ndlp; 10886 10887 /* If this is the first time, allocate an ndlp and initialize 10888 * it. Otherwise, make sure the node is enabled and then do the 10889 * login. 10890 */ 10891 ndlp = lpfc_findnode_did(vport, FDMI_DID); 10892 if (!ndlp) { 10893 ndlp = lpfc_nlp_init(vport, FDMI_DID); 10894 if (ndlp) { 10895 ndlp->nlp_type |= NLP_FABRIC; 10896 } else { 10897 return; 10898 } 10899 } 10900 10901 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 10902 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 10903 } 10904 10905 /** 10906 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr 10907 * @phba: pointer to lpfc hba data structure. 10908 * @vport: pointer to a virtual N_Port data structure. 10909 * 10910 * This routine issues a Port Login (PLOGI) to the Name Server with 10911 * State Change Request (SCR) for a @vport. This routine will create an 10912 * ndlp for the Name Server associated to the @vport if such node does 10913 * not already exist. The PLOGI to Name Server is issued by invoking the 10914 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface 10915 * (FDMI) is configured to the @vport, a FDMI node will be created and 10916 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine. 10917 **/ 10918 void 10919 lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) 10920 { 10921 struct lpfc_nodelist *ndlp; 10922 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 10923 10924 /* 10925 * If lpfc_delay_discovery parameter is set and the clean address 10926 * bit is cleared and fc fabric parameters chenged, delay FC NPort 10927 * discovery. 10928 */ 10929 spin_lock_irq(shost->host_lock); 10930 if (vport->fc_flag & FC_DISC_DELAYED) { 10931 spin_unlock_irq(shost->host_lock); 10932 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10933 "3334 Delay fc port discovery for %d secs\n", 10934 phba->fc_ratov); 10935 mod_timer(&vport->delayed_disc_tmo, 10936 jiffies + msecs_to_jiffies(1000 * phba->fc_ratov)); 10937 return; 10938 } 10939 spin_unlock_irq(shost->host_lock); 10940 10941 ndlp = lpfc_findnode_did(vport, NameServer_DID); 10942 if (!ndlp) { 10943 ndlp = lpfc_nlp_init(vport, NameServer_DID); 10944 if (!ndlp) { 10945 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 10946 lpfc_disc_start(vport); 10947 return; 10948 } 10949 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 10950 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10951 "0251 NameServer login: no memory\n"); 10952 return; 10953 } 10954 } 10955 10956 ndlp->nlp_type |= NLP_FABRIC; 10957 10958 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 10959 10960 if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { 10961 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 10962 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10963 "0252 Cannot issue NameServer login\n"); 10964 return; 10965 } 10966 10967 if ((phba->cfg_enable_SmartSAN || 10968 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) && 10969 (vport->load_flag & FC_ALLOW_FDMI)) 10970 lpfc_start_fdmi(vport); 10971 } 10972 10973 /** 10974 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport 10975 * @phba: pointer to lpfc hba data structure. 10976 * @pmb: pointer to the driver internal queue element for mailbox command. 10977 * 10978 * This routine is the completion callback function to register new vport 10979 * mailbox command. If the new vport mailbox command completes successfully, 10980 * the fabric registration login shall be performed on physical port (the 10981 * new vport created is actually a physical port, with VPI 0) or the port 10982 * login to Name Server for State Change Request (SCR) will be performed 10983 * on virtual port (real virtual port, with VPI greater than 0). 10984 **/ 10985 static void 10986 lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 10987 { 10988 struct lpfc_vport *vport = pmb->vport; 10989 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 10990 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; 10991 MAILBOX_t *mb = &pmb->u.mb; 10992 int rc; 10993 10994 spin_lock_irq(shost->host_lock); 10995 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 10996 spin_unlock_irq(shost->host_lock); 10997 10998 if (mb->mbxStatus) { 10999 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11000 "0915 Register VPI failed : Status: x%x" 11001 " upd bit: x%x \n", mb->mbxStatus, 11002 mb->un.varRegVpi.upd); 11003 if (phba->sli_rev == LPFC_SLI_REV4 && 11004 mb->un.varRegVpi.upd) 11005 goto mbox_err_exit ; 11006 11007 switch (mb->mbxStatus) { 11008 case 0x11: /* unsupported feature */ 11009 case 0x9603: /* max_vpi exceeded */ 11010 case 0x9602: /* Link event since CLEAR_LA */ 11011 /* giving up on vport registration */ 11012 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11013 spin_lock_irq(shost->host_lock); 11014 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 11015 spin_unlock_irq(shost->host_lock); 11016 lpfc_can_disctmo(vport); 11017 break; 11018 /* If reg_vpi fail with invalid VPI status, re-init VPI */ 11019 case 0x20: 11020 spin_lock_irq(shost->host_lock); 11021 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 11022 spin_unlock_irq(shost->host_lock); 11023 lpfc_init_vpi(phba, pmb, vport->vpi); 11024 pmb->vport = vport; 11025 pmb->mbox_cmpl = lpfc_init_vpi_cmpl; 11026 rc = lpfc_sli_issue_mbox(phba, pmb, 11027 MBX_NOWAIT); 11028 if (rc == MBX_NOT_FINISHED) { 11029 lpfc_printf_vlog(vport, KERN_ERR, 11030 LOG_TRACE_EVENT, 11031 "2732 Failed to issue INIT_VPI" 11032 " mailbox command\n"); 11033 } else { 11034 lpfc_nlp_put(ndlp); 11035 return; 11036 } 11037 fallthrough; 11038 default: 11039 /* Try to recover from this error */ 11040 if (phba->sli_rev == LPFC_SLI_REV4) 11041 lpfc_sli4_unreg_all_rpis(vport); 11042 lpfc_mbx_unreg_vpi(vport); 11043 spin_lock_irq(shost->host_lock); 11044 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 11045 spin_unlock_irq(shost->host_lock); 11046 if (mb->mbxStatus == MBX_NOT_FINISHED) 11047 break; 11048 if ((vport->port_type == LPFC_PHYSICAL_PORT) && 11049 !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) { 11050 if (phba->sli_rev == LPFC_SLI_REV4) 11051 lpfc_issue_init_vfi(vport); 11052 else 11053 lpfc_initial_flogi(vport); 11054 } else { 11055 lpfc_initial_fdisc(vport); 11056 } 11057 break; 11058 } 11059 } else { 11060 spin_lock_irq(shost->host_lock); 11061 vport->vpi_state |= LPFC_VPI_REGISTERED; 11062 spin_unlock_irq(shost->host_lock); 11063 if (vport == phba->pport) { 11064 if (phba->sli_rev < LPFC_SLI_REV4) 11065 lpfc_issue_fabric_reglogin(vport); 11066 else { 11067 /* 11068 * If the physical port is instantiated using 11069 * FDISC, do not start vport discovery. 11070 */ 11071 if (vport->port_state != LPFC_FDISC) 11072 lpfc_start_fdiscs(phba); 11073 lpfc_do_scr_ns_plogi(phba, vport); 11074 } 11075 } else { 11076 lpfc_do_scr_ns_plogi(phba, vport); 11077 } 11078 } 11079 mbox_err_exit: 11080 /* Now, we decrement the ndlp reference count held for this 11081 * callback function 11082 */ 11083 lpfc_nlp_put(ndlp); 11084 11085 mempool_free(pmb, phba->mbox_mem_pool); 11086 return; 11087 } 11088 11089 /** 11090 * lpfc_register_new_vport - Register a new vport with a HBA 11091 * @phba: pointer to lpfc hba data structure. 11092 * @vport: pointer to a host virtual N_Port data structure. 11093 * @ndlp: pointer to a node-list data structure. 11094 * 11095 * This routine registers the @vport as a new virtual port with a HBA. 11096 * It is done through a registering vpi mailbox command. 11097 **/ 11098 void 11099 lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, 11100 struct lpfc_nodelist *ndlp) 11101 { 11102 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 11103 LPFC_MBOXQ_t *mbox; 11104 11105 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 11106 if (mbox) { 11107 lpfc_reg_vpi(vport, mbox); 11108 mbox->vport = vport; 11109 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 11110 if (!mbox->ctx_ndlp) { 11111 mempool_free(mbox, phba->mbox_mem_pool); 11112 goto mbox_err_exit; 11113 } 11114 11115 mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; 11116 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 11117 == MBX_NOT_FINISHED) { 11118 /* mailbox command not success, decrement ndlp 11119 * reference count for this command 11120 */ 11121 lpfc_nlp_put(ndlp); 11122 mempool_free(mbox, phba->mbox_mem_pool); 11123 11124 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11125 "0253 Register VPI: Can't send mbox\n"); 11126 goto mbox_err_exit; 11127 } 11128 } else { 11129 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11130 "0254 Register VPI: no memory\n"); 11131 goto mbox_err_exit; 11132 } 11133 return; 11134 11135 mbox_err_exit: 11136 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11137 spin_lock_irq(shost->host_lock); 11138 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 11139 spin_unlock_irq(shost->host_lock); 11140 return; 11141 } 11142 11143 /** 11144 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer 11145 * @phba: pointer to lpfc hba data structure. 11146 * 11147 * This routine cancels the retry delay timers to all the vports. 11148 **/ 11149 void 11150 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba) 11151 { 11152 struct lpfc_vport **vports; 11153 struct lpfc_nodelist *ndlp; 11154 uint32_t link_state; 11155 int i; 11156 11157 /* Treat this failure as linkdown for all vports */ 11158 link_state = phba->link_state; 11159 lpfc_linkdown(phba); 11160 phba->link_state = link_state; 11161 11162 vports = lpfc_create_vport_work_array(phba); 11163 11164 if (vports) { 11165 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 11166 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 11167 if (ndlp) 11168 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 11169 lpfc_els_flush_cmd(vports[i]); 11170 } 11171 lpfc_destroy_vport_work_array(phba, vports); 11172 } 11173 } 11174 11175 /** 11176 * lpfc_retry_pport_discovery - Start timer to retry FLOGI. 11177 * @phba: pointer to lpfc hba data structure. 11178 * 11179 * This routine abort all pending discovery commands and 11180 * start a timer to retry FLOGI for the physical port 11181 * discovery. 11182 **/ 11183 void 11184 lpfc_retry_pport_discovery(struct lpfc_hba *phba) 11185 { 11186 struct lpfc_nodelist *ndlp; 11187 11188 /* Cancel the all vports retry delay retry timers */ 11189 lpfc_cancel_all_vport_retry_delay_timer(phba); 11190 11191 /* If fabric require FLOGI, then re-instantiate physical login */ 11192 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 11193 if (!ndlp) 11194 return; 11195 11196 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 11197 spin_lock_irq(&ndlp->lock); 11198 ndlp->nlp_flag |= NLP_DELAY_TMO; 11199 spin_unlock_irq(&ndlp->lock); 11200 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI; 11201 phba->pport->port_state = LPFC_FLOGI; 11202 return; 11203 } 11204 11205 /** 11206 * lpfc_fabric_login_reqd - Check if FLOGI required. 11207 * @phba: pointer to lpfc hba data structure. 11208 * @cmdiocb: pointer to FDISC command iocb. 11209 * @rspiocb: pointer to FDISC response iocb. 11210 * 11211 * This routine checks if a FLOGI is reguired for FDISC 11212 * to succeed. 11213 **/ 11214 static int 11215 lpfc_fabric_login_reqd(struct lpfc_hba *phba, 11216 struct lpfc_iocbq *cmdiocb, 11217 struct lpfc_iocbq *rspiocb) 11218 { 11219 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 11220 u32 ulp_word4 = get_job_word4(phba, rspiocb); 11221 11222 if (ulp_status != IOSTAT_FABRIC_RJT || 11223 ulp_word4 != RJT_LOGIN_REQUIRED) 11224 return 0; 11225 else 11226 return 1; 11227 } 11228 11229 /** 11230 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command 11231 * @phba: pointer to lpfc hba data structure. 11232 * @cmdiocb: pointer to lpfc command iocb data structure. 11233 * @rspiocb: pointer to lpfc response iocb data structure. 11234 * 11235 * This routine is the completion callback function to a Fabric Discover 11236 * (FDISC) ELS command. Since all the FDISC ELS commands are issued 11237 * single threaded, each FDISC completion callback function will reset 11238 * the discovery timer for all vports such that the timers will not get 11239 * unnecessary timeout. The function checks the FDISC IOCB status. If error 11240 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the 11241 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID 11242 * assigned to the vport has been changed with the completion of the FDISC 11243 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index) 11244 * are unregistered from the HBA, and then the lpfc_register_new_vport() 11245 * routine is invoked to register new vport with the HBA. Otherwise, the 11246 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name 11247 * Server for State Change Request (SCR). 11248 **/ 11249 static void 11250 lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 11251 struct lpfc_iocbq *rspiocb) 11252 { 11253 struct lpfc_vport *vport = cmdiocb->vport; 11254 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 11255 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 11256 struct lpfc_nodelist *np; 11257 struct lpfc_nodelist *next_np; 11258 struct lpfc_iocbq *piocb; 11259 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf, *prsp; 11260 struct serv_parm *sp; 11261 uint8_t fabric_param_changed; 11262 u32 ulp_status, ulp_word4; 11263 11264 ulp_status = get_job_ulpstatus(phba, rspiocb); 11265 ulp_word4 = get_job_word4(phba, rspiocb); 11266 11267 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 11268 "0123 FDISC completes. x%x/x%x prevDID: x%x\n", 11269 ulp_status, ulp_word4, 11270 vport->fc_prevDID); 11271 /* Since all FDISCs are being single threaded, we 11272 * must reset the discovery timer for ALL vports 11273 * waiting to send FDISC when one completes. 11274 */ 11275 list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { 11276 lpfc_set_disctmo(piocb->vport); 11277 } 11278 11279 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11280 "FDISC cmpl: status:x%x/x%x prevdid:x%x", 11281 ulp_status, ulp_word4, vport->fc_prevDID); 11282 11283 if (ulp_status) { 11284 11285 if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) { 11286 lpfc_retry_pport_discovery(phba); 11287 goto out; 11288 } 11289 11290 /* Check for retry */ 11291 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) 11292 goto out; 11293 /* FDISC failed */ 11294 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11295 "0126 FDISC failed. (x%x/x%x)\n", 11296 ulp_status, ulp_word4); 11297 goto fdisc_failed; 11298 } 11299 11300 lpfc_check_nlp_post_devloss(vport, ndlp); 11301 11302 spin_lock_irq(shost->host_lock); 11303 vport->fc_flag &= ~FC_VPORT_CVL_RCVD; 11304 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; 11305 vport->fc_flag |= FC_FABRIC; 11306 if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP) 11307 vport->fc_flag |= FC_PUBLIC_LOOP; 11308 spin_unlock_irq(shost->host_lock); 11309 11310 vport->fc_myDID = ulp_word4 & Mask_DID; 11311 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); 11312 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 11313 if (!prsp) 11314 goto out; 11315 sp = prsp->virt + sizeof(uint32_t); 11316 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); 11317 memcpy(&vport->fabric_portname, &sp->portName, 11318 sizeof(struct lpfc_name)); 11319 memcpy(&vport->fabric_nodename, &sp->nodeName, 11320 sizeof(struct lpfc_name)); 11321 if (fabric_param_changed && 11322 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { 11323 /* If our NportID changed, we need to ensure all 11324 * remaining NPORTs get unreg_login'ed so we can 11325 * issue unreg_vpi. 11326 */ 11327 list_for_each_entry_safe(np, next_np, 11328 &vport->fc_nodes, nlp_listp) { 11329 if ((np->nlp_state != NLP_STE_NPR_NODE) || 11330 !(np->nlp_flag & NLP_NPR_ADISC)) 11331 continue; 11332 spin_lock_irq(&ndlp->lock); 11333 np->nlp_flag &= ~NLP_NPR_ADISC; 11334 spin_unlock_irq(&ndlp->lock); 11335 lpfc_unreg_rpi(vport, np); 11336 } 11337 lpfc_cleanup_pending_mbox(vport); 11338 11339 if (phba->sli_rev == LPFC_SLI_REV4) 11340 lpfc_sli4_unreg_all_rpis(vport); 11341 11342 lpfc_mbx_unreg_vpi(vport); 11343 spin_lock_irq(shost->host_lock); 11344 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 11345 if (phba->sli_rev == LPFC_SLI_REV4) 11346 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 11347 else 11348 vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG; 11349 spin_unlock_irq(shost->host_lock); 11350 } else if ((phba->sli_rev == LPFC_SLI_REV4) && 11351 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { 11352 /* 11353 * Driver needs to re-reg VPI in order for f/w 11354 * to update the MAC address. 11355 */ 11356 lpfc_register_new_vport(phba, vport, ndlp); 11357 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 11358 goto out; 11359 } 11360 11361 if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI) 11362 lpfc_issue_init_vpi(vport); 11363 else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) 11364 lpfc_register_new_vport(phba, vport, ndlp); 11365 else 11366 lpfc_do_scr_ns_plogi(phba, vport); 11367 11368 /* The FDISC completed successfully. Move the fabric ndlp to 11369 * UNMAPPED state and register with the transport. 11370 */ 11371 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 11372 goto out; 11373 11374 fdisc_failed: 11375 if (vport->fc_vport && 11376 (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS)) 11377 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11378 /* Cancel discovery timer */ 11379 lpfc_can_disctmo(vport); 11380 out: 11381 lpfc_els_free_iocb(phba, cmdiocb); 11382 lpfc_nlp_put(ndlp); 11383 } 11384 11385 /** 11386 * lpfc_issue_els_fdisc - Issue a fdisc iocb command 11387 * @vport: pointer to a virtual N_Port data structure. 11388 * @ndlp: pointer to a node-list data structure. 11389 * @retry: number of retries to the command IOCB. 11390 * 11391 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to 11392 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb() 11393 * routine to issue the IOCB, which makes sure only one outstanding fabric 11394 * IOCB will be sent off HBA at any given time. 11395 * 11396 * Note that the ndlp reference count will be incremented by 1 for holding the 11397 * ndlp and the reference to ndlp will be stored into the ndlp field of 11398 * the IOCB for the completion callback function to the FDISC ELS command. 11399 * 11400 * Return code 11401 * 0 - Successfully issued fdisc iocb command 11402 * 1 - Failed to issue fdisc iocb command 11403 **/ 11404 static int 11405 lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 11406 uint8_t retry) 11407 { 11408 struct lpfc_hba *phba = vport->phba; 11409 IOCB_t *icmd; 11410 union lpfc_wqe128 *wqe = NULL; 11411 struct lpfc_iocbq *elsiocb; 11412 struct serv_parm *sp; 11413 uint8_t *pcmd; 11414 uint16_t cmdsize; 11415 int did = ndlp->nlp_DID; 11416 int rc; 11417 11418 vport->port_state = LPFC_FDISC; 11419 vport->fc_myDID = 0; 11420 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); 11421 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, 11422 ELS_CMD_FDISC); 11423 if (!elsiocb) { 11424 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11425 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11426 "0255 Issue FDISC: no IOCB\n"); 11427 return 1; 11428 } 11429 11430 if (phba->sli_rev == LPFC_SLI_REV4) { 11431 wqe = &elsiocb->wqe; 11432 bf_set(els_req64_sid, &wqe->els_req, 0); 11433 bf_set(els_req64_sp, &wqe->els_req, 1); 11434 } else { 11435 icmd = &elsiocb->iocb; 11436 icmd->un.elsreq64.myID = 0; 11437 icmd->un.elsreq64.fl = 1; 11438 icmd->ulpCt_h = 1; 11439 icmd->ulpCt_l = 0; 11440 } 11441 11442 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 11443 *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; 11444 pcmd += sizeof(uint32_t); /* CSP Word 1 */ 11445 memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); 11446 sp = (struct serv_parm *) pcmd; 11447 /* Setup CSPs accordingly for Fabric */ 11448 sp->cmn.e_d_tov = 0; 11449 sp->cmn.w2.r_a_tov = 0; 11450 sp->cmn.virtual_fabric_support = 0; 11451 sp->cls1.classValid = 0; 11452 sp->cls2.seqDelivery = 1; 11453 sp->cls3.seqDelivery = 1; 11454 11455 pcmd += sizeof(uint32_t); /* CSP Word 2 */ 11456 pcmd += sizeof(uint32_t); /* CSP Word 3 */ 11457 pcmd += sizeof(uint32_t); /* CSP Word 4 */ 11458 pcmd += sizeof(uint32_t); /* Port Name */ 11459 memcpy(pcmd, &vport->fc_portname, 8); 11460 pcmd += sizeof(uint32_t); /* Node Name */ 11461 pcmd += sizeof(uint32_t); /* Node Name */ 11462 memcpy(pcmd, &vport->fc_nodename, 8); 11463 sp->cmn.valid_vendor_ver_level = 0; 11464 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion)); 11465 lpfc_set_disctmo(vport); 11466 11467 phba->fc_stat.elsXmitFDISC++; 11468 elsiocb->cmd_cmpl = lpfc_cmpl_els_fdisc; 11469 11470 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11471 "Issue FDISC: did:x%x", 11472 did, 0, 0); 11473 11474 elsiocb->ndlp = lpfc_nlp_get(ndlp); 11475 if (!elsiocb->ndlp) 11476 goto err_out; 11477 11478 rc = lpfc_issue_fabric_iocb(phba, elsiocb); 11479 if (rc == IOCB_ERROR) { 11480 lpfc_nlp_put(ndlp); 11481 goto err_out; 11482 } 11483 11484 lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); 11485 return 0; 11486 11487 err_out: 11488 lpfc_els_free_iocb(phba, elsiocb); 11489 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11490 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11491 "0256 Issue FDISC: Cannot send IOCB\n"); 11492 return 1; 11493 } 11494 11495 /** 11496 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo 11497 * @phba: pointer to lpfc hba data structure. 11498 * @cmdiocb: pointer to lpfc command iocb data structure. 11499 * @rspiocb: pointer to lpfc response iocb data structure. 11500 * 11501 * This routine is the completion callback function to the issuing of a LOGO 11502 * ELS command off a vport. It frees the command IOCB and then decrement the 11503 * reference count held on ndlp for this completion function, indicating that 11504 * the reference to the ndlp is no long needed. Note that the 11505 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this 11506 * callback function and an additional explicit ndlp reference decrementation 11507 * will trigger the actual release of the ndlp. 11508 **/ 11509 static void 11510 lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 11511 struct lpfc_iocbq *rspiocb) 11512 { 11513 struct lpfc_vport *vport = cmdiocb->vport; 11514 IOCB_t *irsp; 11515 struct lpfc_nodelist *ndlp; 11516 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 11517 u32 ulp_status, ulp_word4, did, tmo; 11518 11519 ndlp = cmdiocb->ndlp; 11520 11521 ulp_status = get_job_ulpstatus(phba, rspiocb); 11522 ulp_word4 = get_job_word4(phba, rspiocb); 11523 11524 if (phba->sli_rev == LPFC_SLI_REV4) { 11525 did = get_job_els_rsp64_did(phba, cmdiocb); 11526 tmo = get_wqe_tmo(cmdiocb); 11527 } else { 11528 irsp = &rspiocb->iocb; 11529 did = get_job_els_rsp64_did(phba, rspiocb); 11530 tmo = irsp->ulpTimeout; 11531 } 11532 11533 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11534 "LOGO npiv cmpl: status:x%x/x%x did:x%x", 11535 ulp_status, ulp_word4, did); 11536 11537 /* NPIV LOGO completes to NPort <nlp_DID> */ 11538 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 11539 "2928 NPIV LOGO completes to NPort x%x " 11540 "Data: x%x x%x x%x x%x x%x x%x x%x\n", 11541 ndlp->nlp_DID, ulp_status, ulp_word4, 11542 tmo, vport->num_disc_nodes, 11543 kref_read(&ndlp->kref), ndlp->nlp_flag, 11544 ndlp->fc4_xpt_flags); 11545 11546 if (ulp_status == IOSTAT_SUCCESS) { 11547 spin_lock_irq(shost->host_lock); 11548 vport->fc_flag &= ~FC_NDISC_ACTIVE; 11549 vport->fc_flag &= ~FC_FABRIC; 11550 spin_unlock_irq(shost->host_lock); 11551 lpfc_can_disctmo(vport); 11552 } 11553 11554 if (ndlp->save_flags & NLP_WAIT_FOR_LOGO) { 11555 /* Wake up lpfc_vport_delete if waiting...*/ 11556 if (ndlp->logo_waitq) 11557 wake_up(ndlp->logo_waitq); 11558 spin_lock_irq(&ndlp->lock); 11559 ndlp->nlp_flag &= ~(NLP_ISSUE_LOGO | NLP_LOGO_SND); 11560 ndlp->save_flags &= ~NLP_WAIT_FOR_LOGO; 11561 spin_unlock_irq(&ndlp->lock); 11562 } 11563 11564 /* Safe to release resources now. */ 11565 lpfc_els_free_iocb(phba, cmdiocb); 11566 lpfc_nlp_put(ndlp); 11567 } 11568 11569 /** 11570 * lpfc_issue_els_npiv_logo - Issue a logo off a vport 11571 * @vport: pointer to a virtual N_Port data structure. 11572 * @ndlp: pointer to a node-list data structure. 11573 * 11574 * This routine issues a LOGO ELS command to an @ndlp off a @vport. 11575 * 11576 * Note that the ndlp reference count will be incremented by 1 for holding the 11577 * ndlp and the reference to ndlp will be stored into the ndlp field of 11578 * the IOCB for the completion callback function to the LOGO ELS command. 11579 * 11580 * Return codes 11581 * 0 - Successfully issued logo off the @vport 11582 * 1 - Failed to issue logo off the @vport 11583 **/ 11584 int 11585 lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 11586 { 11587 int rc = 0; 11588 struct lpfc_hba *phba = vport->phba; 11589 struct lpfc_iocbq *elsiocb; 11590 uint8_t *pcmd; 11591 uint16_t cmdsize; 11592 11593 cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); 11594 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, 11595 ELS_CMD_LOGO); 11596 if (!elsiocb) 11597 return 1; 11598 11599 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 11600 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; 11601 pcmd += sizeof(uint32_t); 11602 11603 /* Fill in LOGO payload */ 11604 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); 11605 pcmd += sizeof(uint32_t); 11606 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); 11607 11608 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11609 "Issue LOGO npiv did:x%x flg:x%x", 11610 ndlp->nlp_DID, ndlp->nlp_flag, 0); 11611 11612 elsiocb->cmd_cmpl = lpfc_cmpl_els_npiv_logo; 11613 spin_lock_irq(&ndlp->lock); 11614 ndlp->nlp_flag |= NLP_LOGO_SND; 11615 spin_unlock_irq(&ndlp->lock); 11616 elsiocb->ndlp = lpfc_nlp_get(ndlp); 11617 if (!elsiocb->ndlp) { 11618 lpfc_els_free_iocb(phba, elsiocb); 11619 goto err; 11620 } 11621 11622 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 11623 if (rc == IOCB_ERROR) { 11624 lpfc_els_free_iocb(phba, elsiocb); 11625 lpfc_nlp_put(ndlp); 11626 goto err; 11627 } 11628 return 0; 11629 11630 err: 11631 spin_lock_irq(&ndlp->lock); 11632 ndlp->nlp_flag &= ~NLP_LOGO_SND; 11633 spin_unlock_irq(&ndlp->lock); 11634 return 1; 11635 } 11636 11637 /** 11638 * lpfc_fabric_block_timeout - Handler function to the fabric block timer 11639 * @t: timer context used to obtain the lpfc hba. 11640 * 11641 * This routine is invoked by the fabric iocb block timer after 11642 * timeout. It posts the fabric iocb block timeout event by setting the 11643 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes 11644 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for 11645 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the 11646 * posted event WORKER_FABRIC_BLOCK_TMO. 11647 **/ 11648 void 11649 lpfc_fabric_block_timeout(struct timer_list *t) 11650 { 11651 struct lpfc_hba *phba = from_timer(phba, t, fabric_block_timer); 11652 unsigned long iflags; 11653 uint32_t tmo_posted; 11654 11655 spin_lock_irqsave(&phba->pport->work_port_lock, iflags); 11656 tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; 11657 if (!tmo_posted) 11658 phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; 11659 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); 11660 11661 if (!tmo_posted) 11662 lpfc_worker_wake_up(phba); 11663 return; 11664 } 11665 11666 /** 11667 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list 11668 * @phba: pointer to lpfc hba data structure. 11669 * 11670 * This routine issues one fabric iocb from the driver internal list to 11671 * the HBA. It first checks whether it's ready to issue one fabric iocb to 11672 * the HBA (whether there is no outstanding fabric iocb). If so, it shall 11673 * remove one pending fabric iocb from the driver internal list and invokes 11674 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA. 11675 **/ 11676 static void 11677 lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) 11678 { 11679 struct lpfc_iocbq *iocb; 11680 unsigned long iflags; 11681 int ret; 11682 11683 repeat: 11684 iocb = NULL; 11685 spin_lock_irqsave(&phba->hbalock, iflags); 11686 /* Post any pending iocb to the SLI layer */ 11687 if (atomic_read(&phba->fabric_iocb_count) == 0) { 11688 list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), 11689 list); 11690 if (iocb) 11691 /* Increment fabric iocb count to hold the position */ 11692 atomic_inc(&phba->fabric_iocb_count); 11693 } 11694 spin_unlock_irqrestore(&phba->hbalock, iflags); 11695 if (iocb) { 11696 iocb->fabric_cmd_cmpl = iocb->cmd_cmpl; 11697 iocb->cmd_cmpl = lpfc_cmpl_fabric_iocb; 11698 iocb->cmd_flag |= LPFC_IO_FABRIC; 11699 11700 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, 11701 "Fabric sched1: ste:x%x", 11702 iocb->vport->port_state, 0, 0); 11703 11704 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); 11705 11706 if (ret == IOCB_ERROR) { 11707 iocb->cmd_cmpl = iocb->fabric_cmd_cmpl; 11708 iocb->fabric_cmd_cmpl = NULL; 11709 iocb->cmd_flag &= ~LPFC_IO_FABRIC; 11710 set_job_ulpstatus(iocb, IOSTAT_LOCAL_REJECT); 11711 iocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED; 11712 iocb->cmd_cmpl(phba, iocb, iocb); 11713 11714 atomic_dec(&phba->fabric_iocb_count); 11715 goto repeat; 11716 } 11717 } 11718 } 11719 11720 /** 11721 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command 11722 * @phba: pointer to lpfc hba data structure. 11723 * 11724 * This routine unblocks the issuing fabric iocb command. The function 11725 * will clear the fabric iocb block bit and then invoke the routine 11726 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb 11727 * from the driver internal fabric iocb list. 11728 **/ 11729 void 11730 lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) 11731 { 11732 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 11733 11734 lpfc_resume_fabric_iocbs(phba); 11735 return; 11736 } 11737 11738 /** 11739 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command 11740 * @phba: pointer to lpfc hba data structure. 11741 * 11742 * This routine blocks the issuing fabric iocb for a specified amount of 11743 * time (currently 100 ms). This is done by set the fabric iocb block bit 11744 * and set up a timeout timer for 100ms. When the block bit is set, no more 11745 * fabric iocb will be issued out of the HBA. 11746 **/ 11747 static void 11748 lpfc_block_fabric_iocbs(struct lpfc_hba *phba) 11749 { 11750 int blocked; 11751 11752 blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 11753 /* Start a timer to unblock fabric iocbs after 100ms */ 11754 if (!blocked) 11755 mod_timer(&phba->fabric_block_timer, 11756 jiffies + msecs_to_jiffies(100)); 11757 11758 return; 11759 } 11760 11761 /** 11762 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb 11763 * @phba: pointer to lpfc hba data structure. 11764 * @cmdiocb: pointer to lpfc command iocb data structure. 11765 * @rspiocb: pointer to lpfc response iocb data structure. 11766 * 11767 * This routine is the callback function that is put to the fabric iocb's 11768 * callback function pointer (iocb->cmd_cmpl). The original iocb's callback 11769 * function pointer has been stored in iocb->fabric_cmd_cmpl. This callback 11770 * function first restores and invokes the original iocb's callback function 11771 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next 11772 * fabric bound iocb from the driver internal fabric iocb list onto the wire. 11773 **/ 11774 static void 11775 lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 11776 struct lpfc_iocbq *rspiocb) 11777 { 11778 struct ls_rjt stat; 11779 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 11780 u32 ulp_word4 = get_job_word4(phba, rspiocb); 11781 11782 WARN_ON((cmdiocb->cmd_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC); 11783 11784 switch (ulp_status) { 11785 case IOSTAT_NPORT_RJT: 11786 case IOSTAT_FABRIC_RJT: 11787 if (ulp_word4 & RJT_UNAVAIL_TEMP) 11788 lpfc_block_fabric_iocbs(phba); 11789 break; 11790 11791 case IOSTAT_NPORT_BSY: 11792 case IOSTAT_FABRIC_BSY: 11793 lpfc_block_fabric_iocbs(phba); 11794 break; 11795 11796 case IOSTAT_LS_RJT: 11797 stat.un.ls_rjt_error_be = 11798 cpu_to_be32(ulp_word4); 11799 if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || 11800 (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) 11801 lpfc_block_fabric_iocbs(phba); 11802 break; 11803 } 11804 11805 BUG_ON(atomic_read(&phba->fabric_iocb_count) == 0); 11806 11807 cmdiocb->cmd_cmpl = cmdiocb->fabric_cmd_cmpl; 11808 cmdiocb->fabric_cmd_cmpl = NULL; 11809 cmdiocb->cmd_flag &= ~LPFC_IO_FABRIC; 11810 cmdiocb->cmd_cmpl(phba, cmdiocb, rspiocb); 11811 11812 atomic_dec(&phba->fabric_iocb_count); 11813 if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { 11814 /* Post any pending iocbs to HBA */ 11815 lpfc_resume_fabric_iocbs(phba); 11816 } 11817 } 11818 11819 /** 11820 * lpfc_issue_fabric_iocb - Issue a fabric iocb command 11821 * @phba: pointer to lpfc hba data structure. 11822 * @iocb: pointer to lpfc command iocb data structure. 11823 * 11824 * This routine is used as the top-level API for issuing a fabric iocb command 11825 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver 11826 * function makes sure that only one fabric bound iocb will be outstanding at 11827 * any given time. As such, this function will first check to see whether there 11828 * is already an outstanding fabric iocb on the wire. If so, it will put the 11829 * newly issued iocb onto the driver internal fabric iocb list, waiting to be 11830 * issued later. Otherwise, it will issue the iocb on the wire and update the 11831 * fabric iocb count it indicate that there is one fabric iocb on the wire. 11832 * 11833 * Note, this implementation has a potential sending out fabric IOCBs out of 11834 * order. The problem is caused by the construction of the "ready" boolen does 11835 * not include the condition that the internal fabric IOCB list is empty. As 11836 * such, it is possible a fabric IOCB issued by this routine might be "jump" 11837 * ahead of the fabric IOCBs in the internal list. 11838 * 11839 * Return code 11840 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully 11841 * IOCB_ERROR - failed to issue fabric iocb 11842 **/ 11843 static int 11844 lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) 11845 { 11846 unsigned long iflags; 11847 int ready; 11848 int ret; 11849 11850 BUG_ON(atomic_read(&phba->fabric_iocb_count) > 1); 11851 11852 spin_lock_irqsave(&phba->hbalock, iflags); 11853 ready = atomic_read(&phba->fabric_iocb_count) == 0 && 11854 !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 11855 11856 if (ready) 11857 /* Increment fabric iocb count to hold the position */ 11858 atomic_inc(&phba->fabric_iocb_count); 11859 spin_unlock_irqrestore(&phba->hbalock, iflags); 11860 if (ready) { 11861 iocb->fabric_cmd_cmpl = iocb->cmd_cmpl; 11862 iocb->cmd_cmpl = lpfc_cmpl_fabric_iocb; 11863 iocb->cmd_flag |= LPFC_IO_FABRIC; 11864 11865 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, 11866 "Fabric sched2: ste:x%x", 11867 iocb->vport->port_state, 0, 0); 11868 11869 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); 11870 11871 if (ret == IOCB_ERROR) { 11872 iocb->cmd_cmpl = iocb->fabric_cmd_cmpl; 11873 iocb->fabric_cmd_cmpl = NULL; 11874 iocb->cmd_flag &= ~LPFC_IO_FABRIC; 11875 atomic_dec(&phba->fabric_iocb_count); 11876 } 11877 } else { 11878 spin_lock_irqsave(&phba->hbalock, iflags); 11879 list_add_tail(&iocb->list, &phba->fabric_iocb_list); 11880 spin_unlock_irqrestore(&phba->hbalock, iflags); 11881 ret = IOCB_SUCCESS; 11882 } 11883 return ret; 11884 } 11885 11886 /** 11887 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list 11888 * @vport: pointer to a virtual N_Port data structure. 11889 * 11890 * This routine aborts all the IOCBs associated with a @vport from the 11891 * driver internal fabric IOCB list. The list contains fabric IOCBs to be 11892 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB 11893 * list, removes each IOCB associated with the @vport off the list, set the 11894 * status field to IOSTAT_LOCAL_REJECT, and invokes the callback function 11895 * associated with the IOCB. 11896 **/ 11897 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) 11898 { 11899 LIST_HEAD(completions); 11900 struct lpfc_hba *phba = vport->phba; 11901 struct lpfc_iocbq *tmp_iocb, *piocb; 11902 11903 spin_lock_irq(&phba->hbalock); 11904 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, 11905 list) { 11906 11907 if (piocb->vport != vport) 11908 continue; 11909 11910 list_move_tail(&piocb->list, &completions); 11911 } 11912 spin_unlock_irq(&phba->hbalock); 11913 11914 /* Cancel all the IOCBs from the completions list */ 11915 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 11916 IOERR_SLI_ABORTED); 11917 } 11918 11919 /** 11920 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list 11921 * @ndlp: pointer to a node-list data structure. 11922 * 11923 * This routine aborts all the IOCBs associated with an @ndlp from the 11924 * driver internal fabric IOCB list. The list contains fabric IOCBs to be 11925 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB 11926 * list, removes each IOCB associated with the @ndlp off the list, set the 11927 * status field to IOSTAT_LOCAL_REJECT, and invokes the callback function 11928 * associated with the IOCB. 11929 **/ 11930 void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) 11931 { 11932 LIST_HEAD(completions); 11933 struct lpfc_hba *phba = ndlp->phba; 11934 struct lpfc_iocbq *tmp_iocb, *piocb; 11935 struct lpfc_sli_ring *pring; 11936 11937 pring = lpfc_phba_elsring(phba); 11938 11939 if (unlikely(!pring)) 11940 return; 11941 11942 spin_lock_irq(&phba->hbalock); 11943 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, 11944 list) { 11945 if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { 11946 11947 list_move_tail(&piocb->list, &completions); 11948 } 11949 } 11950 spin_unlock_irq(&phba->hbalock); 11951 11952 /* Cancel all the IOCBs from the completions list */ 11953 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 11954 IOERR_SLI_ABORTED); 11955 } 11956 11957 /** 11958 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list 11959 * @phba: pointer to lpfc hba data structure. 11960 * 11961 * This routine aborts all the IOCBs currently on the driver internal 11962 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS 11963 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB 11964 * list, removes IOCBs off the list, set the status field to 11965 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with 11966 * the IOCB. 11967 **/ 11968 void lpfc_fabric_abort_hba(struct lpfc_hba *phba) 11969 { 11970 LIST_HEAD(completions); 11971 11972 spin_lock_irq(&phba->hbalock); 11973 list_splice_init(&phba->fabric_iocb_list, &completions); 11974 spin_unlock_irq(&phba->hbalock); 11975 11976 /* Cancel all the IOCBs from the completions list */ 11977 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 11978 IOERR_SLI_ABORTED); 11979 } 11980 11981 /** 11982 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport 11983 * @vport: pointer to lpfc vport data structure. 11984 * 11985 * This routine is invoked by the vport cleanup for deletions and the cleanup 11986 * for an ndlp on removal. 11987 **/ 11988 void 11989 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport) 11990 { 11991 struct lpfc_hba *phba = vport->phba; 11992 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 11993 struct lpfc_nodelist *ndlp = NULL; 11994 unsigned long iflag = 0; 11995 11996 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock, iflag); 11997 list_for_each_entry_safe(sglq_entry, sglq_next, 11998 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { 11999 if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport) { 12000 lpfc_nlp_put(sglq_entry->ndlp); 12001 ndlp = sglq_entry->ndlp; 12002 sglq_entry->ndlp = NULL; 12003 12004 /* If the xri on the abts_els_sgl list is for the Fport 12005 * node and the vport is unloading, the xri aborted wcqe 12006 * likely isn't coming back. Just release the sgl. 12007 */ 12008 if ((vport->load_flag & FC_UNLOADING) && 12009 ndlp->nlp_DID == Fabric_DID) { 12010 list_del(&sglq_entry->list); 12011 sglq_entry->state = SGL_FREED; 12012 list_add_tail(&sglq_entry->list, 12013 &phba->sli4_hba.lpfc_els_sgl_list); 12014 } 12015 } 12016 } 12017 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, iflag); 12018 return; 12019 } 12020 12021 /** 12022 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort 12023 * @phba: pointer to lpfc hba data structure. 12024 * @axri: pointer to the els xri abort wcqe structure. 12025 * 12026 * This routine is invoked by the worker thread to process a SLI4 slow-path 12027 * ELS aborted xri. 12028 **/ 12029 void 12030 lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba, 12031 struct sli4_wcqe_xri_aborted *axri) 12032 { 12033 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); 12034 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); 12035 uint16_t lxri = 0; 12036 12037 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 12038 unsigned long iflag = 0; 12039 struct lpfc_nodelist *ndlp; 12040 struct lpfc_sli_ring *pring; 12041 12042 pring = lpfc_phba_elsring(phba); 12043 12044 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock, iflag); 12045 list_for_each_entry_safe(sglq_entry, sglq_next, 12046 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { 12047 if (sglq_entry->sli4_xritag == xri) { 12048 list_del(&sglq_entry->list); 12049 ndlp = sglq_entry->ndlp; 12050 sglq_entry->ndlp = NULL; 12051 list_add_tail(&sglq_entry->list, 12052 &phba->sli4_hba.lpfc_els_sgl_list); 12053 sglq_entry->state = SGL_FREED; 12054 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, 12055 iflag); 12056 12057 if (ndlp) { 12058 lpfc_set_rrq_active(phba, ndlp, 12059 sglq_entry->sli4_lxritag, 12060 rxid, 1); 12061 lpfc_nlp_put(ndlp); 12062 } 12063 12064 /* Check if TXQ queue needs to be serviced */ 12065 if (pring && !list_empty(&pring->txq)) 12066 lpfc_worker_wake_up(phba); 12067 return; 12068 } 12069 } 12070 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, iflag); 12071 lxri = lpfc_sli4_xri_inrange(phba, xri); 12072 if (lxri == NO_XRI) 12073 return; 12074 12075 spin_lock_irqsave(&phba->hbalock, iflag); 12076 sglq_entry = __lpfc_get_active_sglq(phba, lxri); 12077 if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) { 12078 spin_unlock_irqrestore(&phba->hbalock, iflag); 12079 return; 12080 } 12081 sglq_entry->state = SGL_XRI_ABORTED; 12082 spin_unlock_irqrestore(&phba->hbalock, iflag); 12083 return; 12084 } 12085 12086 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req. 12087 * @vport: pointer to virtual port object. 12088 * @ndlp: nodelist pointer for the impacted node. 12089 * 12090 * The driver calls this routine in response to an SLI4 XRI ABORT CQE 12091 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event, 12092 * the driver is required to send a LOGO to the remote node before it 12093 * attempts to recover its login to the remote node. 12094 */ 12095 void 12096 lpfc_sli_abts_recover_port(struct lpfc_vport *vport, 12097 struct lpfc_nodelist *ndlp) 12098 { 12099 struct Scsi_Host *shost; 12100 struct lpfc_hba *phba; 12101 unsigned long flags = 0; 12102 12103 shost = lpfc_shost_from_vport(vport); 12104 phba = vport->phba; 12105 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) { 12106 lpfc_printf_log(phba, KERN_INFO, 12107 LOG_SLI, "3093 No rport recovery needed. " 12108 "rport in state 0x%x\n", ndlp->nlp_state); 12109 return; 12110 } 12111 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 12112 "3094 Start rport recovery on shost id 0x%x " 12113 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x " 12114 "flags 0x%x\n", 12115 shost->host_no, ndlp->nlp_DID, 12116 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state, 12117 ndlp->nlp_flag); 12118 /* 12119 * The rport is not responding. Remove the FCP-2 flag to prevent 12120 * an ADISC in the follow-up recovery code. 12121 */ 12122 spin_lock_irqsave(&ndlp->lock, flags); 12123 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 12124 ndlp->nlp_flag |= NLP_ISSUE_LOGO; 12125 spin_unlock_irqrestore(&ndlp->lock, flags); 12126 lpfc_unreg_rpi(vport, ndlp); 12127 } 12128 12129 static void lpfc_init_cs_ctl_bitmap(struct lpfc_vport *vport) 12130 { 12131 bitmap_zero(vport->vmid_priority_range, LPFC_VMID_MAX_PRIORITY_RANGE); 12132 } 12133 12134 static void 12135 lpfc_vmid_set_cs_ctl_range(struct lpfc_vport *vport, u32 min, u32 max) 12136 { 12137 u32 i; 12138 12139 if ((min > max) || (max > LPFC_VMID_MAX_PRIORITY_RANGE)) 12140 return; 12141 12142 for (i = min; i <= max; i++) 12143 set_bit(i, vport->vmid_priority_range); 12144 } 12145 12146 static void lpfc_vmid_put_cs_ctl(struct lpfc_vport *vport, u32 ctcl_vmid) 12147 { 12148 set_bit(ctcl_vmid, vport->vmid_priority_range); 12149 } 12150 12151 u32 lpfc_vmid_get_cs_ctl(struct lpfc_vport *vport) 12152 { 12153 u32 i; 12154 12155 i = find_first_bit(vport->vmid_priority_range, 12156 LPFC_VMID_MAX_PRIORITY_RANGE); 12157 12158 if (i == LPFC_VMID_MAX_PRIORITY_RANGE) 12159 return 0; 12160 12161 clear_bit(i, vport->vmid_priority_range); 12162 return i; 12163 } 12164 12165 #define MAX_PRIORITY_DESC 255 12166 12167 static void 12168 lpfc_cmpl_els_qfpa(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 12169 struct lpfc_iocbq *rspiocb) 12170 { 12171 struct lpfc_vport *vport = cmdiocb->vport; 12172 struct priority_range_desc *desc; 12173 struct lpfc_dmabuf *prsp = NULL; 12174 struct lpfc_vmid_priority_range *vmid_range = NULL; 12175 u32 *data; 12176 struct lpfc_dmabuf *dmabuf = cmdiocb->cmd_dmabuf; 12177 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 12178 u32 ulp_word4 = get_job_word4(phba, rspiocb); 12179 u8 *pcmd, max_desc; 12180 u32 len, i; 12181 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 12182 12183 prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list); 12184 if (!prsp) 12185 goto out; 12186 12187 pcmd = prsp->virt; 12188 data = (u32 *)pcmd; 12189 if (data[0] == ELS_CMD_LS_RJT) { 12190 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 12191 "3277 QFPA LS_RJT x%x x%x\n", 12192 data[0], data[1]); 12193 goto out; 12194 } 12195 if (ulp_status) { 12196 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 12197 "6529 QFPA failed with status x%x x%x\n", 12198 ulp_status, ulp_word4); 12199 goto out; 12200 } 12201 12202 if (!vport->qfpa_res) { 12203 max_desc = FCELSSIZE / sizeof(*vport->qfpa_res); 12204 vport->qfpa_res = kcalloc(max_desc, sizeof(*vport->qfpa_res), 12205 GFP_KERNEL); 12206 if (!vport->qfpa_res) 12207 goto out; 12208 } 12209 12210 len = *((u32 *)(pcmd + 4)); 12211 len = be32_to_cpu(len); 12212 memcpy(vport->qfpa_res, pcmd, len + 8); 12213 len = len / LPFC_PRIORITY_RANGE_DESC_SIZE; 12214 12215 desc = (struct priority_range_desc *)(pcmd + 8); 12216 vmid_range = vport->vmid_priority.vmid_range; 12217 if (!vmid_range) { 12218 vmid_range = kcalloc(MAX_PRIORITY_DESC, sizeof(*vmid_range), 12219 GFP_KERNEL); 12220 if (!vmid_range) { 12221 kfree(vport->qfpa_res); 12222 goto out; 12223 } 12224 vport->vmid_priority.vmid_range = vmid_range; 12225 } 12226 vport->vmid_priority.num_descriptors = len; 12227 12228 for (i = 0; i < len; i++, vmid_range++, desc++) { 12229 lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS, 12230 "6539 vmid values low=%d, high=%d, qos=%d, " 12231 "local ve id=%d\n", desc->lo_range, 12232 desc->hi_range, desc->qos_priority, 12233 desc->local_ve_id); 12234 12235 vmid_range->low = desc->lo_range << 1; 12236 if (desc->local_ve_id == QFPA_ODD_ONLY) 12237 vmid_range->low++; 12238 if (desc->qos_priority) 12239 vport->vmid_flag |= LPFC_VMID_QOS_ENABLED; 12240 vmid_range->qos = desc->qos_priority; 12241 12242 vmid_range->high = desc->hi_range << 1; 12243 if ((desc->local_ve_id == QFPA_ODD_ONLY) || 12244 (desc->local_ve_id == QFPA_EVEN_ODD)) 12245 vmid_range->high++; 12246 } 12247 lpfc_init_cs_ctl_bitmap(vport); 12248 for (i = 0; i < vport->vmid_priority.num_descriptors; i++) { 12249 lpfc_vmid_set_cs_ctl_range(vport, 12250 vport->vmid_priority.vmid_range[i].low, 12251 vport->vmid_priority.vmid_range[i].high); 12252 } 12253 12254 vport->vmid_flag |= LPFC_VMID_QFPA_CMPL; 12255 out: 12256 lpfc_els_free_iocb(phba, cmdiocb); 12257 lpfc_nlp_put(ndlp); 12258 } 12259 12260 int lpfc_issue_els_qfpa(struct lpfc_vport *vport) 12261 { 12262 struct lpfc_hba *phba = vport->phba; 12263 struct lpfc_nodelist *ndlp; 12264 struct lpfc_iocbq *elsiocb; 12265 u8 *pcmd; 12266 int ret; 12267 12268 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 12269 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 12270 return -ENXIO; 12271 12272 elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_QFPA_SIZE, 2, ndlp, 12273 ndlp->nlp_DID, ELS_CMD_QFPA); 12274 if (!elsiocb) 12275 return -ENOMEM; 12276 12277 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 12278 12279 *((u32 *)(pcmd)) = ELS_CMD_QFPA; 12280 pcmd += 4; 12281 12282 elsiocb->cmd_cmpl = lpfc_cmpl_els_qfpa; 12283 12284 elsiocb->ndlp = lpfc_nlp_get(ndlp); 12285 if (!elsiocb->ndlp) { 12286 lpfc_els_free_iocb(vport->phba, elsiocb); 12287 return -ENXIO; 12288 } 12289 12290 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 2); 12291 if (ret != IOCB_SUCCESS) { 12292 lpfc_els_free_iocb(phba, elsiocb); 12293 lpfc_nlp_put(ndlp); 12294 return -EIO; 12295 } 12296 vport->vmid_flag &= ~LPFC_VMID_QOS_ENABLED; 12297 return 0; 12298 } 12299 12300 int 12301 lpfc_vmid_uvem(struct lpfc_vport *vport, 12302 struct lpfc_vmid *vmid, bool instantiated) 12303 { 12304 struct lpfc_vem_id_desc *vem_id_desc; 12305 struct lpfc_nodelist *ndlp; 12306 struct lpfc_iocbq *elsiocb; 12307 struct instantiated_ve_desc *inst_desc; 12308 struct lpfc_vmid_context *vmid_context; 12309 u8 *pcmd; 12310 u32 *len; 12311 int ret = 0; 12312 12313 ndlp = lpfc_findnode_did(vport, Fabric_DID); 12314 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 12315 return -ENXIO; 12316 12317 vmid_context = kmalloc(sizeof(*vmid_context), GFP_KERNEL); 12318 if (!vmid_context) 12319 return -ENOMEM; 12320 elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_UVEM_SIZE, 2, 12321 ndlp, Fabric_DID, ELS_CMD_UVEM); 12322 if (!elsiocb) 12323 goto out; 12324 12325 lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS, 12326 "3427 Host vmid %s %d\n", 12327 vmid->host_vmid, instantiated); 12328 vmid_context->vmp = vmid; 12329 vmid_context->nlp = ndlp; 12330 vmid_context->instantiated = instantiated; 12331 elsiocb->vmid_tag.vmid_context = vmid_context; 12332 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 12333 12334 if (uuid_is_null((uuid_t *)vport->lpfc_vmid_host_uuid)) 12335 memcpy(vport->lpfc_vmid_host_uuid, vmid->host_vmid, 12336 LPFC_COMPRESS_VMID_SIZE); 12337 12338 *((u32 *)(pcmd)) = ELS_CMD_UVEM; 12339 len = (u32 *)(pcmd + 4); 12340 *len = cpu_to_be32(LPFC_UVEM_SIZE - 8); 12341 12342 vem_id_desc = (struct lpfc_vem_id_desc *)(pcmd + 8); 12343 vem_id_desc->tag = be32_to_cpu(VEM_ID_DESC_TAG); 12344 vem_id_desc->length = be32_to_cpu(LPFC_UVEM_VEM_ID_DESC_SIZE); 12345 memcpy(vem_id_desc->vem_id, vport->lpfc_vmid_host_uuid, 12346 LPFC_COMPRESS_VMID_SIZE); 12347 12348 inst_desc = (struct instantiated_ve_desc *)(pcmd + 32); 12349 inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG); 12350 inst_desc->length = be32_to_cpu(LPFC_UVEM_VE_MAP_DESC_SIZE); 12351 memcpy(inst_desc->global_vem_id, vmid->host_vmid, 12352 LPFC_COMPRESS_VMID_SIZE); 12353 12354 bf_set(lpfc_instantiated_nport_id, inst_desc, vport->fc_myDID); 12355 bf_set(lpfc_instantiated_local_id, inst_desc, 12356 vmid->un.cs_ctl_vmid); 12357 if (instantiated) { 12358 inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG); 12359 } else { 12360 inst_desc->tag = be32_to_cpu(DEINSTANTIATED_VE_DESC_TAG); 12361 lpfc_vmid_put_cs_ctl(vport, vmid->un.cs_ctl_vmid); 12362 } 12363 inst_desc->word6 = cpu_to_be32(inst_desc->word6); 12364 12365 elsiocb->cmd_cmpl = lpfc_cmpl_els_uvem; 12366 12367 elsiocb->ndlp = lpfc_nlp_get(ndlp); 12368 if (!elsiocb->ndlp) { 12369 lpfc_els_free_iocb(vport->phba, elsiocb); 12370 goto out; 12371 } 12372 12373 ret = lpfc_sli_issue_iocb(vport->phba, LPFC_ELS_RING, elsiocb, 0); 12374 if (ret != IOCB_SUCCESS) { 12375 lpfc_els_free_iocb(vport->phba, elsiocb); 12376 lpfc_nlp_put(ndlp); 12377 goto out; 12378 } 12379 12380 return 0; 12381 out: 12382 kfree(vmid_context); 12383 return -EIO; 12384 } 12385 12386 static void 12387 lpfc_cmpl_els_uvem(struct lpfc_hba *phba, struct lpfc_iocbq *icmdiocb, 12388 struct lpfc_iocbq *rspiocb) 12389 { 12390 struct lpfc_vport *vport = icmdiocb->vport; 12391 struct lpfc_dmabuf *prsp = NULL; 12392 struct lpfc_vmid_context *vmid_context = 12393 icmdiocb->vmid_tag.vmid_context; 12394 struct lpfc_nodelist *ndlp = icmdiocb->ndlp; 12395 u8 *pcmd; 12396 u32 *data; 12397 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 12398 u32 ulp_word4 = get_job_word4(phba, rspiocb); 12399 struct lpfc_dmabuf *dmabuf = icmdiocb->cmd_dmabuf; 12400 struct lpfc_vmid *vmid; 12401 12402 vmid = vmid_context->vmp; 12403 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 12404 ndlp = NULL; 12405 12406 prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list); 12407 if (!prsp) 12408 goto out; 12409 pcmd = prsp->virt; 12410 data = (u32 *)pcmd; 12411 if (data[0] == ELS_CMD_LS_RJT) { 12412 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 12413 "4532 UVEM LS_RJT %x %x\n", data[0], data[1]); 12414 goto out; 12415 } 12416 if (ulp_status) { 12417 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 12418 "4533 UVEM error status %x: %x\n", 12419 ulp_status, ulp_word4); 12420 goto out; 12421 } 12422 spin_lock(&phba->hbalock); 12423 /* Set IN USE flag */ 12424 vport->vmid_flag |= LPFC_VMID_IN_USE; 12425 phba->pport->vmid_flag |= LPFC_VMID_IN_USE; 12426 spin_unlock(&phba->hbalock); 12427 12428 if (vmid_context->instantiated) { 12429 write_lock(&vport->vmid_lock); 12430 vmid->flag |= LPFC_VMID_REGISTERED; 12431 vmid->flag &= ~LPFC_VMID_REQ_REGISTER; 12432 write_unlock(&vport->vmid_lock); 12433 } 12434 12435 out: 12436 kfree(vmid_context); 12437 lpfc_els_free_iocb(phba, icmdiocb); 12438 lpfc_nlp_put(ndlp); 12439 } 12440