1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2024 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 lpfc_hba *phba = vport->phba; 97 uint32_t ha_copy; 98 99 if (vport->port_state >= LPFC_VPORT_READY || 100 phba->link_state == LPFC_LINK_DOWN || 101 phba->sli_rev > LPFC_SLI_REV3) 102 return 0; 103 104 /* Read the HBA Host Attention Register */ 105 if (lpfc_readl(phba->HAregaddr, &ha_copy)) 106 return 1; 107 108 if (!(ha_copy & HA_LATT)) 109 return 0; 110 111 /* Pending Link Event during Discovery */ 112 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 113 "0237 Pending Link Event during " 114 "Discovery: State x%x\n", 115 phba->pport->port_state); 116 117 /* CLEAR_LA should re-enable link attention events and 118 * we should then immediately take a LATT event. The 119 * LATT processing should call lpfc_linkdown() which 120 * will cleanup any left over in-progress discovery 121 * events. 122 */ 123 set_bit(FC_ABORT_DISCOVERY, &vport->fc_flag); 124 125 if (phba->link_state != LPFC_CLEAR_LA) 126 lpfc_issue_clear_la(phba, vport); 127 128 return 1; 129 } 130 131 static bool lpfc_is_els_acc_rsp(struct lpfc_dmabuf *buf) 132 { 133 struct fc_els_ls_acc *rsp = buf->virt; 134 135 if (rsp && rsp->la_cmd == ELS_LS_ACC) 136 return true; 137 return false; 138 } 139 140 /** 141 * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure 142 * @vport: pointer to a host virtual N_Port data structure. 143 * @expect_rsp: flag indicating whether response is expected. 144 * @cmd_size: size of the ELS command. 145 * @retry: number of retries to the command when it fails. 146 * @ndlp: pointer to a node-list data structure. 147 * @did: destination identifier. 148 * @elscmd: the ELS command code. 149 * 150 * This routine is used for allocating a lpfc-IOCB data structure from 151 * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters 152 * passed into the routine for discovery state machine to issue an Extended 153 * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation 154 * and preparation routine that is used by all the discovery state machine 155 * routines and the ELS command-specific fields will be later set up by 156 * the individual discovery machine routines after calling this routine 157 * allocating and preparing a generic IOCB data structure. It fills in the 158 * Buffer Descriptor Entries (BDEs), allocates buffers for both command 159 * payload and response payload (if expected). The reference count on the 160 * ndlp is incremented by 1 and the reference to the ndlp is put into 161 * ndlp of the IOCB data structure for this IOCB to hold the ndlp 162 * reference for the command's callback function to access later. 163 * 164 * Return code 165 * Pointer to the newly allocated/prepared els iocb data structure 166 * NULL - when els iocb data structure allocation/preparation failed 167 **/ 168 struct lpfc_iocbq * 169 lpfc_prep_els_iocb(struct lpfc_vport *vport, u8 expect_rsp, 170 u16 cmd_size, u8 retry, 171 struct lpfc_nodelist *ndlp, u32 did, 172 u32 elscmd) 173 { 174 struct lpfc_hba *phba = vport->phba; 175 struct lpfc_iocbq *elsiocb; 176 struct lpfc_dmabuf *pcmd, *prsp, *pbuflist, *bmp; 177 struct ulp_bde64_le *bpl; 178 u32 timeout = 0; 179 180 if (!lpfc_is_link_up(phba)) 181 return NULL; 182 183 /* Allocate buffer for command iocb */ 184 elsiocb = lpfc_sli_get_iocbq(phba); 185 if (!elsiocb) 186 return NULL; 187 188 /* 189 * If this command is for fabric controller and HBA running 190 * in FIP mode send FLOGI, FDISC and LOGO as FIP frames. 191 */ 192 if (did == Fabric_DID && 193 test_bit(HBA_FIP_SUPPORT, &phba->hba_flag) && 194 (elscmd == ELS_CMD_FLOGI || 195 elscmd == ELS_CMD_FDISC || 196 elscmd == ELS_CMD_LOGO)) 197 switch (elscmd) { 198 case ELS_CMD_FLOGI: 199 elsiocb->cmd_flag |= 200 ((LPFC_ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT) 201 & LPFC_FIP_ELS_ID_MASK); 202 break; 203 case ELS_CMD_FDISC: 204 elsiocb->cmd_flag |= 205 ((LPFC_ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT) 206 & LPFC_FIP_ELS_ID_MASK); 207 break; 208 case ELS_CMD_LOGO: 209 elsiocb->cmd_flag |= 210 ((LPFC_ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT) 211 & LPFC_FIP_ELS_ID_MASK); 212 break; 213 } 214 else 215 elsiocb->cmd_flag &= ~LPFC_FIP_ELS_ID_MASK; 216 217 /* fill in BDEs for command */ 218 /* Allocate buffer for command payload */ 219 pcmd = kmalloc(sizeof(*pcmd), GFP_KERNEL); 220 if (pcmd) 221 pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys); 222 if (!pcmd || !pcmd->virt) 223 goto els_iocb_free_pcmb_exit; 224 225 INIT_LIST_HEAD(&pcmd->list); 226 227 /* Allocate buffer for response payload */ 228 if (expect_rsp) { 229 prsp = kmalloc(sizeof(*prsp), GFP_KERNEL); 230 if (prsp) 231 prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 232 &prsp->phys); 233 if (!prsp || !prsp->virt) 234 goto els_iocb_free_prsp_exit; 235 INIT_LIST_HEAD(&prsp->list); 236 } else { 237 prsp = NULL; 238 } 239 240 /* Allocate buffer for Buffer ptr list */ 241 pbuflist = kmalloc(sizeof(*pbuflist), GFP_KERNEL); 242 if (pbuflist) 243 pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 244 &pbuflist->phys); 245 if (!pbuflist || !pbuflist->virt) 246 goto els_iocb_free_pbuf_exit; 247 248 INIT_LIST_HEAD(&pbuflist->list); 249 250 if (expect_rsp) { 251 switch (elscmd) { 252 case ELS_CMD_FLOGI: 253 timeout = FF_DEF_RATOV * 2; 254 break; 255 case ELS_CMD_LOGO: 256 timeout = phba->fc_ratov; 257 break; 258 default: 259 timeout = phba->fc_ratov * 2; 260 } 261 262 /* Fill SGE for the num bde count */ 263 elsiocb->num_bdes = 2; 264 } 265 266 if (phba->sli_rev == LPFC_SLI_REV4) 267 bmp = pcmd; 268 else 269 bmp = pbuflist; 270 271 lpfc_sli_prep_els_req_rsp(phba, elsiocb, vport, bmp, cmd_size, did, 272 elscmd, timeout, expect_rsp); 273 274 bpl = (struct ulp_bde64_le *)pbuflist->virt; 275 bpl->addr_low = cpu_to_le32(putPaddrLow(pcmd->phys)); 276 bpl->addr_high = cpu_to_le32(putPaddrHigh(pcmd->phys)); 277 bpl->type_size = cpu_to_le32(cmd_size); 278 bpl->type_size |= cpu_to_le32(ULP_BDE64_TYPE_BDE_64); 279 280 if (expect_rsp) { 281 bpl++; 282 bpl->addr_low = cpu_to_le32(putPaddrLow(prsp->phys)); 283 bpl->addr_high = cpu_to_le32(putPaddrHigh(prsp->phys)); 284 bpl->type_size = cpu_to_le32(FCELSSIZE); 285 bpl->type_size |= cpu_to_le32(ULP_BDE64_TYPE_BDE_64); 286 } 287 288 elsiocb->cmd_dmabuf = pcmd; 289 elsiocb->bpl_dmabuf = pbuflist; 290 elsiocb->retry = retry; 291 elsiocb->vport = vport; 292 elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT; 293 294 if (prsp) 295 list_add(&prsp->list, &pcmd->list); 296 if (expect_rsp) { 297 /* Xmit ELS command <elsCmd> to remote NPORT <did> */ 298 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 299 "0116 Xmit ELS command x%x to remote " 300 "NPORT x%x I/O tag: x%x, port state:x%x " 301 "rpi x%x fc_flag:x%lx\n", 302 elscmd, did, elsiocb->iotag, 303 vport->port_state, ndlp->nlp_rpi, 304 vport->fc_flag); 305 } else { 306 /* Xmit ELS response <elsCmd> to remote NPORT <did> */ 307 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 308 "0117 Xmit ELS response x%x to remote " 309 "NPORT x%x I/O tag: x%x, size: x%x " 310 "port_state x%x rpi x%x fc_flag x%lx\n", 311 elscmd, ndlp->nlp_DID, elsiocb->iotag, 312 cmd_size, vport->port_state, 313 ndlp->nlp_rpi, vport->fc_flag); 314 } 315 316 return elsiocb; 317 318 els_iocb_free_pbuf_exit: 319 if (expect_rsp) 320 lpfc_mbuf_free(phba, prsp->virt, prsp->phys); 321 kfree(pbuflist); 322 323 els_iocb_free_prsp_exit: 324 lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); 325 kfree(prsp); 326 327 els_iocb_free_pcmb_exit: 328 kfree(pcmd); 329 lpfc_sli_release_iocbq(phba, elsiocb); 330 return NULL; 331 } 332 333 /** 334 * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport 335 * @vport: pointer to a host virtual N_Port data structure. 336 * 337 * This routine issues a fabric registration login for a @vport. An 338 * active ndlp node with Fabric_DID must already exist for this @vport. 339 * The routine invokes two mailbox commands to carry out fabric registration 340 * login through the HBA firmware: the first mailbox command requests the 341 * HBA to perform link configuration for the @vport; and the second mailbox 342 * command requests the HBA to perform the actual fabric registration login 343 * with the @vport. 344 * 345 * Return code 346 * 0 - successfully issued fabric registration login for @vport 347 * -ENXIO -- failed to issue fabric registration login for @vport 348 **/ 349 int 350 lpfc_issue_fabric_reglogin(struct lpfc_vport *vport) 351 { 352 struct lpfc_hba *phba = vport->phba; 353 LPFC_MBOXQ_t *mbox; 354 struct lpfc_nodelist *ndlp; 355 struct serv_parm *sp; 356 int rc; 357 int err = 0; 358 359 sp = &phba->fc_fabparam; 360 ndlp = lpfc_findnode_did(vport, Fabric_DID); 361 if (!ndlp) { 362 err = 1; 363 goto fail; 364 } 365 366 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 367 if (!mbox) { 368 err = 2; 369 goto fail; 370 } 371 372 vport->port_state = LPFC_FABRIC_CFG_LINK; 373 lpfc_config_link(phba, mbox); 374 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 375 mbox->vport = vport; 376 377 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 378 if (rc == MBX_NOT_FINISHED) { 379 err = 3; 380 goto fail_free_mbox; 381 } 382 383 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 384 if (!mbox) { 385 err = 4; 386 goto fail; 387 } 388 rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox, 389 ndlp->nlp_rpi); 390 if (rc) { 391 err = 5; 392 goto fail_free_mbox; 393 } 394 395 mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login; 396 mbox->vport = vport; 397 /* increment the reference count on ndlp to hold reference 398 * for the callback routine. 399 */ 400 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 401 if (!mbox->ctx_ndlp) { 402 err = 6; 403 goto fail_free_mbox; 404 } 405 406 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 407 if (rc == MBX_NOT_FINISHED) { 408 err = 7; 409 goto fail_issue_reg_login; 410 } 411 412 return 0; 413 414 fail_issue_reg_login: 415 /* decrement the reference count on ndlp just incremented 416 * for the failed mbox command. 417 */ 418 lpfc_nlp_put(ndlp); 419 fail_free_mbox: 420 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 421 fail: 422 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 423 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 424 "0249 Cannot issue Register Fabric login: Err %d\n", 425 err); 426 return -ENXIO; 427 } 428 429 /** 430 * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login 431 * @vport: pointer to a host virtual N_Port data structure. 432 * 433 * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for 434 * the @vport. This mailbox command is necessary for SLI4 port only. 435 * 436 * Return code 437 * 0 - successfully issued REG_VFI for @vport 438 * A failure code otherwise. 439 **/ 440 int 441 lpfc_issue_reg_vfi(struct lpfc_vport *vport) 442 { 443 struct lpfc_hba *phba = vport->phba; 444 LPFC_MBOXQ_t *mboxq = NULL; 445 struct lpfc_nodelist *ndlp; 446 struct lpfc_dmabuf *dmabuf = NULL; 447 int rc = 0; 448 449 /* move forward in case of SLI4 FC port loopback test and pt2pt mode */ 450 if ((phba->sli_rev == LPFC_SLI_REV4) && 451 !(phba->link_flag & LS_LOOPBACK_MODE) && 452 !test_bit(FC_PT2PT, &vport->fc_flag)) { 453 ndlp = lpfc_findnode_did(vport, Fabric_DID); 454 if (!ndlp) { 455 rc = -ENODEV; 456 goto fail; 457 } 458 } 459 460 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 461 if (!mboxq) { 462 rc = -ENOMEM; 463 goto fail; 464 } 465 466 /* Supply CSP's only if we are fabric connect or pt-to-pt connect */ 467 if (test_bit(FC_FABRIC, &vport->fc_flag) || 468 test_bit(FC_PT2PT, &vport->fc_flag)) { 469 rc = lpfc_mbox_rsrc_prep(phba, mboxq); 470 if (rc) { 471 rc = -ENOMEM; 472 goto fail_mbox; 473 } 474 dmabuf = mboxq->ctx_buf; 475 memcpy(dmabuf->virt, &phba->fc_fabparam, 476 sizeof(struct serv_parm)); 477 } 478 479 vport->port_state = LPFC_FABRIC_CFG_LINK; 480 if (dmabuf) { 481 lpfc_reg_vfi(mboxq, vport, dmabuf->phys); 482 /* lpfc_reg_vfi memsets the mailbox. Restore the ctx_buf. */ 483 mboxq->ctx_buf = dmabuf; 484 } else { 485 lpfc_reg_vfi(mboxq, vport, 0); 486 } 487 488 mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi; 489 mboxq->vport = vport; 490 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 491 if (rc == MBX_NOT_FINISHED) { 492 rc = -ENXIO; 493 goto fail_mbox; 494 } 495 return 0; 496 497 fail_mbox: 498 lpfc_mbox_rsrc_cleanup(phba, mboxq, MBOX_THD_UNLOCKED); 499 fail: 500 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 501 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 502 "0289 Issue Register VFI failed: Err %d\n", rc); 503 return rc; 504 } 505 506 /** 507 * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login 508 * @vport: pointer to a host virtual N_Port data structure. 509 * 510 * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for 511 * the @vport. This mailbox command is necessary for SLI4 port only. 512 * 513 * Return code 514 * 0 - successfully issued REG_VFI for @vport 515 * A failure code otherwise. 516 **/ 517 int 518 lpfc_issue_unreg_vfi(struct lpfc_vport *vport) 519 { 520 struct lpfc_hba *phba = vport->phba; 521 LPFC_MBOXQ_t *mboxq; 522 int rc; 523 524 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 525 if (!mboxq) { 526 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 527 "2556 UNREG_VFI mbox allocation failed" 528 "HBA state x%x\n", phba->pport->port_state); 529 return -ENOMEM; 530 } 531 532 lpfc_unreg_vfi(mboxq, vport); 533 mboxq->vport = vport; 534 mboxq->mbox_cmpl = lpfc_unregister_vfi_cmpl; 535 536 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 537 if (rc == MBX_NOT_FINISHED) { 538 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 539 "2557 UNREG_VFI issue mbox failed rc x%x " 540 "HBA state x%x\n", 541 rc, phba->pport->port_state); 542 mempool_free(mboxq, phba->mbox_mem_pool); 543 return -EIO; 544 } 545 546 clear_bit(FC_VFI_REGISTERED, &vport->fc_flag); 547 return 0; 548 } 549 550 /** 551 * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean. 552 * @vport: pointer to a host virtual N_Port data structure. 553 * @sp: pointer to service parameter data structure. 554 * 555 * This routine is called from FLOGI/FDISC completion handler functions. 556 * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric 557 * node nodename is changed in the completion service parameter else return 558 * 0. This function also set flag in the vport data structure to delay 559 * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit 560 * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric 561 * node nodename is changed in the completion service parameter. 562 * 563 * Return code 564 * 0 - FCID and Fabric Nodename and Fabric portname is not changed. 565 * 1 - FCID or Fabric Nodename or Fabric portname is changed. 566 * 567 **/ 568 static uint8_t 569 lpfc_check_clean_addr_bit(struct lpfc_vport *vport, 570 struct serv_parm *sp) 571 { 572 struct lpfc_hba *phba = vport->phba; 573 uint8_t fabric_param_changed = 0; 574 575 if ((vport->fc_prevDID != vport->fc_myDID) || 576 memcmp(&vport->fabric_portname, &sp->portName, 577 sizeof(struct lpfc_name)) || 578 memcmp(&vport->fabric_nodename, &sp->nodeName, 579 sizeof(struct lpfc_name)) || 580 (vport->vport_flag & FAWWPN_PARAM_CHG)) { 581 fabric_param_changed = 1; 582 vport->vport_flag &= ~FAWWPN_PARAM_CHG; 583 } 584 /* 585 * Word 1 Bit 31 in common service parameter is overloaded. 586 * Word 1 Bit 31 in FLOGI request is multiple NPort request 587 * Word 1 Bit 31 in FLOGI response is clean address bit 588 * 589 * If fabric parameter is changed and clean address bit is 590 * cleared delay nport discovery if 591 * - vport->fc_prevDID != 0 (not initial discovery) OR 592 * - lpfc_delay_discovery module parameter is set. 593 */ 594 if (fabric_param_changed && !sp->cmn.clean_address_bit && 595 (vport->fc_prevDID || phba->cfg_delay_discovery)) 596 set_bit(FC_DISC_DELAYED, &vport->fc_flag); 597 598 return fabric_param_changed; 599 } 600 601 602 /** 603 * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port 604 * @vport: pointer to a host virtual N_Port data structure. 605 * @ndlp: pointer to a node-list data structure. 606 * @sp: pointer to service parameter data structure. 607 * @ulp_word4: command response value 608 * 609 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback 610 * function to handle the completion of a Fabric Login (FLOGI) into a fabric 611 * port in a fabric topology. It properly sets up the parameters to the @ndlp 612 * from the IOCB response. It also check the newly assigned N_Port ID to the 613 * @vport against the previously assigned N_Port ID. If it is different from 614 * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine 615 * is invoked on all the remaining nodes with the @vport to unregister the 616 * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin() 617 * is invoked to register login to the fabric. 618 * 619 * Return code 620 * 0 - Success (currently, always return 0) 621 **/ 622 static int 623 lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 624 struct serv_parm *sp, uint32_t ulp_word4) 625 { 626 struct lpfc_hba *phba = vport->phba; 627 struct lpfc_nodelist *np; 628 struct lpfc_nodelist *next_np; 629 uint8_t fabric_param_changed; 630 631 set_bit(FC_FABRIC, &vport->fc_flag); 632 633 phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov); 634 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 635 phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000; 636 637 phba->fc_edtovResol = sp->cmn.edtovResolution; 638 phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000; 639 640 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) 641 set_bit(FC_PUBLIC_LOOP, &vport->fc_flag); 642 643 vport->fc_myDID = ulp_word4 & Mask_DID; 644 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); 645 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name)); 646 ndlp->nlp_class_sup = 0; 647 if (sp->cls1.classValid) 648 ndlp->nlp_class_sup |= FC_COS_CLASS1; 649 if (sp->cls2.classValid) 650 ndlp->nlp_class_sup |= FC_COS_CLASS2; 651 if (sp->cls3.classValid) 652 ndlp->nlp_class_sup |= FC_COS_CLASS3; 653 if (sp->cls4.classValid) 654 ndlp->nlp_class_sup |= FC_COS_CLASS4; 655 ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | 656 sp->cmn.bbRcvSizeLsb; 657 658 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); 659 if (fabric_param_changed) { 660 /* Reset FDMI attribute masks based on config parameter */ 661 if (phba->cfg_enable_SmartSAN || 662 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { 663 /* Setup appropriate attribute masks */ 664 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR; 665 if (phba->cfg_enable_SmartSAN) 666 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR; 667 else 668 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR; 669 } else { 670 vport->fdmi_hba_mask = 0; 671 vport->fdmi_port_mask = 0; 672 } 673 674 } 675 memcpy(&vport->fabric_portname, &sp->portName, 676 sizeof(struct lpfc_name)); 677 memcpy(&vport->fabric_nodename, &sp->nodeName, 678 sizeof(struct lpfc_name)); 679 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 680 681 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { 682 if (sp->cmn.response_multiple_NPort) { 683 lpfc_printf_vlog(vport, KERN_WARNING, 684 LOG_ELS | LOG_VPORT, 685 "1816 FLOGI NPIV supported, " 686 "response data 0x%x\n", 687 sp->cmn.response_multiple_NPort); 688 spin_lock_irq(&phba->hbalock); 689 phba->link_flag |= LS_NPIV_FAB_SUPPORTED; 690 spin_unlock_irq(&phba->hbalock); 691 } else { 692 /* Because we asked f/w for NPIV it still expects us 693 to call reg_vnpid at least for the physical host */ 694 lpfc_printf_vlog(vport, KERN_WARNING, 695 LOG_ELS | LOG_VPORT, 696 "1817 Fabric does not support NPIV " 697 "- configuring single port mode.\n"); 698 spin_lock_irq(&phba->hbalock); 699 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 700 spin_unlock_irq(&phba->hbalock); 701 } 702 } 703 704 /* 705 * For FC we need to do some special processing because of the SLI 706 * Port's default settings of the Common Service Parameters. 707 */ 708 if ((phba->sli_rev == LPFC_SLI_REV4) && 709 (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)) { 710 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */ 711 if (fabric_param_changed) 712 lpfc_unregister_fcf_prep(phba); 713 714 /* This should just update the VFI CSPs*/ 715 if (test_bit(FC_VFI_REGISTERED, &vport->fc_flag)) 716 lpfc_issue_reg_vfi(vport); 717 } 718 719 if (fabric_param_changed && 720 !test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) { 721 722 /* If our NportID changed, we need to ensure all 723 * remaining NPORTs get unreg_login'ed. 724 */ 725 list_for_each_entry_safe(np, next_np, 726 &vport->fc_nodes, nlp_listp) { 727 if ((np->nlp_state != NLP_STE_NPR_NODE) || 728 !test_bit(NLP_NPR_ADISC, &np->nlp_flag)) 729 continue; 730 clear_bit(NLP_NPR_ADISC, &np->nlp_flag); 731 lpfc_unreg_rpi(vport, np); 732 } 733 lpfc_cleanup_pending_mbox(vport); 734 735 if (phba->sli_rev == LPFC_SLI_REV4) { 736 lpfc_sli4_unreg_all_rpis(vport); 737 lpfc_mbx_unreg_vpi(vport); 738 set_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag); 739 } 740 741 /* 742 * For SLI3 and SLI4, the VPI needs to be reregistered in 743 * response to this fabric parameter change event. 744 */ 745 set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); 746 } else if ((phba->sli_rev == LPFC_SLI_REV4) && 747 !test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) { 748 /* 749 * Driver needs to re-reg VPI in order for f/w 750 * to update the MAC address. 751 */ 752 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 753 lpfc_register_new_vport(phba, vport, ndlp); 754 return 0; 755 } 756 757 if (phba->sli_rev < LPFC_SLI_REV4) { 758 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); 759 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED && 760 test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) 761 lpfc_register_new_vport(phba, vport, ndlp); 762 else 763 lpfc_issue_fabric_reglogin(vport); 764 } else { 765 ndlp->nlp_type |= NLP_FABRIC; 766 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 767 if ((!test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) && 768 (vport->vpi_state & LPFC_VPI_REGISTERED)) { 769 lpfc_start_fdiscs(phba); 770 lpfc_do_scr_ns_plogi(phba, vport); 771 } else if (test_bit(FC_VFI_REGISTERED, &vport->fc_flag)) 772 lpfc_issue_init_vpi(vport); 773 else { 774 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 775 "3135 Need register VFI: (x%x/%x)\n", 776 vport->fc_prevDID, vport->fc_myDID); 777 lpfc_issue_reg_vfi(vport); 778 } 779 } 780 return 0; 781 } 782 783 /** 784 * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port 785 * @vport: pointer to a host virtual N_Port data structure. 786 * @ndlp: pointer to a node-list data structure. 787 * @sp: pointer to service parameter data structure. 788 * 789 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback 790 * function to handle the completion of a Fabric Login (FLOGI) into an N_Port 791 * in a point-to-point topology. First, the @vport's N_Port Name is compared 792 * with the received N_Port Name: if the @vport's N_Port Name is greater than 793 * the received N_Port Name lexicographically, this node shall assign local 794 * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and 795 * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise, 796 * this node shall just wait for the remote node to issue PLOGI and assign 797 * N_Port IDs. 798 * 799 * Return code 800 * 0 - Success 801 * -ENXIO - Fail 802 **/ 803 static int 804 lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 805 struct serv_parm *sp) 806 { 807 struct lpfc_hba *phba = vport->phba; 808 LPFC_MBOXQ_t *mbox; 809 int rc; 810 811 clear_bit(FC_FABRIC, &vport->fc_flag); 812 clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag); 813 set_bit(FC_PT2PT, &vport->fc_flag); 814 815 /* If we are pt2pt with another NPort, force NPIV off! */ 816 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 817 818 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */ 819 if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) { 820 lpfc_unregister_fcf_prep(phba); 821 clear_bit(FC_VFI_REGISTERED, &vport->fc_flag); 822 phba->fc_topology_changed = 0; 823 } 824 825 rc = memcmp(&vport->fc_portname, &sp->portName, 826 sizeof(vport->fc_portname)); 827 828 if (rc >= 0) { 829 /* This side will initiate the PLOGI */ 830 set_bit(FC_PT2PT_PLOGI, &vport->fc_flag); 831 832 /* 833 * N_Port ID cannot be 0, set our Id to LocalID 834 * the other side will be RemoteID. 835 */ 836 837 /* not equal */ 838 if (rc) 839 vport->fc_myDID = PT2PT_LocalID; 840 841 /* If not registered with a transport, decrement ndlp reference 842 * count indicating that ndlp can be safely released when other 843 * references are removed. 844 */ 845 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) 846 lpfc_nlp_put(ndlp); 847 848 ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID); 849 if (!ndlp) { 850 /* 851 * Cannot find existing Fabric ndlp, so allocate a 852 * new one 853 */ 854 ndlp = lpfc_nlp_init(vport, PT2PT_RemoteID); 855 if (!ndlp) 856 goto fail; 857 } 858 859 memcpy(&ndlp->nlp_portname, &sp->portName, 860 sizeof(struct lpfc_name)); 861 memcpy(&ndlp->nlp_nodename, &sp->nodeName, 862 sizeof(struct lpfc_name)); 863 /* Set state will put ndlp onto node list if not already done */ 864 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 865 set_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 866 867 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 868 if (!mbox) 869 goto fail; 870 871 lpfc_config_link(phba, mbox); 872 873 mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 874 mbox->vport = vport; 875 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 876 if (rc == MBX_NOT_FINISHED) { 877 mempool_free(mbox, phba->mbox_mem_pool); 878 goto fail; 879 } 880 } else { 881 /* This side will wait for the PLOGI. If not registered with 882 * a transport, decrement node reference count indicating that 883 * ndlp can be released when other references are removed. 884 */ 885 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) 886 lpfc_nlp_put(ndlp); 887 888 /* Start discovery - this should just do CLEAR_LA */ 889 lpfc_disc_start(vport); 890 } 891 892 return 0; 893 fail: 894 return -ENXIO; 895 } 896 897 /** 898 * lpfc_cmpl_els_flogi - Completion callback function for flogi 899 * @phba: pointer to lpfc hba data structure. 900 * @cmdiocb: pointer to lpfc command iocb data structure. 901 * @rspiocb: pointer to lpfc response iocb data structure. 902 * 903 * This routine is the top-level completion callback function for issuing 904 * a Fabric Login (FLOGI) command. If the response IOCB reported error, 905 * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If 906 * retry has been made (either immediately or delayed with lpfc_els_retry() 907 * returning 1), the command IOCB will be released and function returned. 908 * If the retry attempt has been given up (possibly reach the maximum 909 * number of retries), one additional decrement of ndlp reference shall be 910 * invoked before going out after releasing the command IOCB. This will 911 * actually release the remote node (Note, lpfc_els_free_iocb() will also 912 * invoke one decrement of ndlp reference count). If no error reported in 913 * the IOCB status, the command Port ID field is used to determine whether 914 * this is a point-to-point topology or a fabric topology: if the Port ID 915 * field is assigned, it is a fabric topology; otherwise, it is a 916 * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or 917 * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the 918 * specific topology completion conditions. 919 **/ 920 static void 921 lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 922 struct lpfc_iocbq *rspiocb) 923 { 924 struct lpfc_vport *vport = cmdiocb->vport; 925 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 926 IOCB_t *irsp; 927 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf, *prsp; 928 struct serv_parm *sp; 929 uint16_t fcf_index; 930 int rc; 931 u32 ulp_status, ulp_word4, tmo; 932 bool flogi_in_retry = false; 933 934 /* Check to see if link went down during discovery */ 935 if (lpfc_els_chk_latt(vport)) { 936 /* One additional decrement on node reference count to 937 * trigger the release of the node 938 */ 939 if (!(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) 940 lpfc_nlp_put(ndlp); 941 goto out; 942 } 943 944 ulp_status = get_job_ulpstatus(phba, rspiocb); 945 ulp_word4 = get_job_word4(phba, rspiocb); 946 947 if (phba->sli_rev == LPFC_SLI_REV4) { 948 tmo = get_wqe_tmo(cmdiocb); 949 } else { 950 irsp = &rspiocb->iocb; 951 tmo = irsp->ulpTimeout; 952 } 953 954 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 955 "FLOGI cmpl: status:x%x/x%x state:x%x", 956 ulp_status, ulp_word4, 957 vport->port_state); 958 959 if (ulp_status) { 960 /* 961 * In case of FIP mode, perform roundrobin FCF failover 962 * due to new FCF discovery 963 */ 964 if (test_bit(HBA_FIP_SUPPORT, &phba->hba_flag) && 965 (phba->fcf.fcf_flag & FCF_DISCOVERY)) { 966 if (phba->link_state < LPFC_LINK_UP) 967 goto stop_rr_fcf_flogi; 968 if ((phba->fcoe_cvl_eventtag_attn == 969 phba->fcoe_cvl_eventtag) && 970 (ulp_status == IOSTAT_LOCAL_REJECT) && 971 ((ulp_word4 & IOERR_PARAM_MASK) == 972 IOERR_SLI_ABORTED)) 973 goto stop_rr_fcf_flogi; 974 else 975 phba->fcoe_cvl_eventtag_attn = 976 phba->fcoe_cvl_eventtag; 977 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 978 "2611 FLOGI FCF (x%x), " 979 "status:x%x/x%x, tmo:x%x, perform " 980 "roundrobin FCF failover\n", 981 phba->fcf.current_rec.fcf_indx, 982 ulp_status, ulp_word4, tmo); 983 lpfc_sli4_set_fcf_flogi_fail(phba, 984 phba->fcf.current_rec.fcf_indx); 985 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 986 rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index); 987 if (rc) 988 goto out; 989 } 990 991 stop_rr_fcf_flogi: 992 /* FLOGI failure */ 993 if (!(ulp_status == IOSTAT_LOCAL_REJECT && 994 ((ulp_word4 & IOERR_PARAM_MASK) == 995 IOERR_LOOP_OPEN_FAILURE))) 996 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 997 "2858 FLOGI Status:x%x/x%x TMO" 998 ":x%x Data x%lx x%x\n", 999 ulp_status, ulp_word4, tmo, 1000 phba->hba_flag, phba->fcf.fcf_flag); 1001 1002 /* Check for retry */ 1003 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { 1004 /* Address a timing race with dev_loss. If dev_loss 1005 * is active on this FPort node, put the initial ref 1006 * count back to stop premature node release actions. 1007 */ 1008 lpfc_check_nlp_post_devloss(vport, ndlp); 1009 flogi_in_retry = true; 1010 goto out; 1011 } 1012 1013 /* The FLOGI will not be retried. If the FPort node is not 1014 * registered with the SCSI transport, remove the initial 1015 * reference to trigger node release. 1016 */ 1017 if (!test_bit(NLP_IN_DEV_LOSS, &ndlp->nlp_flag) && 1018 !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) 1019 lpfc_nlp_put(ndlp); 1020 1021 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS, 1022 "0150 FLOGI Status:x%x/x%x " 1023 "xri x%x TMO:x%x refcnt %d\n", 1024 ulp_status, ulp_word4, cmdiocb->sli4_xritag, 1025 tmo, kref_read(&ndlp->kref)); 1026 1027 /* If this is not a loop open failure, bail out */ 1028 if (!(ulp_status == IOSTAT_LOCAL_REJECT && 1029 ((ulp_word4 & IOERR_PARAM_MASK) == 1030 IOERR_LOOP_OPEN_FAILURE))) { 1031 /* Warn FLOGI status */ 1032 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 1033 "0100 FLOGI Status:x%x/x%x " 1034 "TMO:x%x\n", 1035 ulp_status, ulp_word4, tmo); 1036 goto flogifail; 1037 } 1038 1039 /* FLOGI failed, so there is no fabric */ 1040 clear_bit(FC_FABRIC, &vport->fc_flag); 1041 clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag); 1042 clear_bit(FC_PT2PT_NO_NVME, &vport->fc_flag); 1043 1044 /* If private loop, then allow max outstanding els to be 1045 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no 1046 * alpa map would take too long otherwise. 1047 */ 1048 if (phba->alpa_map[0] == 0) 1049 vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS; 1050 if ((phba->sli_rev == LPFC_SLI_REV4) && 1051 (!test_bit(FC_VFI_REGISTERED, &vport->fc_flag) || 1052 (vport->fc_prevDID != vport->fc_myDID) || 1053 phba->fc_topology_changed)) { 1054 if (test_bit(FC_VFI_REGISTERED, &vport->fc_flag)) { 1055 if (phba->fc_topology_changed) { 1056 lpfc_unregister_fcf_prep(phba); 1057 clear_bit(FC_VFI_REGISTERED, 1058 &vport->fc_flag); 1059 phba->fc_topology_changed = 0; 1060 } else { 1061 lpfc_sli4_unreg_all_rpis(vport); 1062 } 1063 } 1064 1065 /* Do not register VFI if the driver aborted FLOGI */ 1066 if (!lpfc_error_lost_link(vport, ulp_status, ulp_word4)) 1067 lpfc_issue_reg_vfi(vport); 1068 1069 goto out; 1070 } 1071 goto flogifail; 1072 } 1073 clear_bit(FC_VPORT_CVL_RCVD, &vport->fc_flag); 1074 clear_bit(FC_VPORT_LOGO_RCVD, &vport->fc_flag); 1075 1076 /* 1077 * The FLOGI succeeded. Sync the data for the CPU before 1078 * accessing it. 1079 */ 1080 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1081 if (!prsp) 1082 goto out; 1083 if (!lpfc_is_els_acc_rsp(prsp)) 1084 goto out; 1085 sp = prsp->virt + sizeof(uint32_t); 1086 1087 /* FLOGI completes successfully */ 1088 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1089 "0101 FLOGI completes successfully, I/O tag:x%x " 1090 "xri x%x Data: x%x x%x x%x x%x x%x x%lx x%x %d\n", 1091 cmdiocb->iotag, cmdiocb->sli4_xritag, 1092 ulp_word4, sp->cmn.e_d_tov, 1093 sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution, 1094 vport->port_state, vport->fc_flag, 1095 sp->cmn.priority_tagging, kref_read(&ndlp->kref)); 1096 1097 /* reinitialize the VMID datastructure before returning */ 1098 if (lpfc_is_vmid_enabled(phba)) { 1099 lpfc_reinit_vmid(vport); 1100 vport->vmid_flag = 0; 1101 } 1102 if (sp->cmn.priority_tagging) 1103 vport->phba->pport->vmid_flag |= (LPFC_VMID_ISSUE_QFPA | 1104 LPFC_VMID_TYPE_PRIO); 1105 1106 /* 1107 * Address a timing race with dev_loss. If dev_loss is active on 1108 * this FPort node, put the initial ref count back to stop premature 1109 * node release actions. 1110 */ 1111 lpfc_check_nlp_post_devloss(vport, ndlp); 1112 if (vport->port_state == LPFC_FLOGI) { 1113 /* 1114 * If Common Service Parameters indicate Nport 1115 * we are point to point, if Fport we are Fabric. 1116 */ 1117 if (sp->cmn.fPort) 1118 rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, 1119 ulp_word4); 1120 else if (!test_bit(HBA_FCOE_MODE, &phba->hba_flag)) 1121 rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp); 1122 else { 1123 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1124 "2831 FLOGI response with cleared Fabric " 1125 "bit fcf_index 0x%x " 1126 "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x " 1127 "Fabric Name " 1128 "%02x%02x%02x%02x%02x%02x%02x%02x\n", 1129 phba->fcf.current_rec.fcf_indx, 1130 phba->fcf.current_rec.switch_name[0], 1131 phba->fcf.current_rec.switch_name[1], 1132 phba->fcf.current_rec.switch_name[2], 1133 phba->fcf.current_rec.switch_name[3], 1134 phba->fcf.current_rec.switch_name[4], 1135 phba->fcf.current_rec.switch_name[5], 1136 phba->fcf.current_rec.switch_name[6], 1137 phba->fcf.current_rec.switch_name[7], 1138 phba->fcf.current_rec.fabric_name[0], 1139 phba->fcf.current_rec.fabric_name[1], 1140 phba->fcf.current_rec.fabric_name[2], 1141 phba->fcf.current_rec.fabric_name[3], 1142 phba->fcf.current_rec.fabric_name[4], 1143 phba->fcf.current_rec.fabric_name[5], 1144 phba->fcf.current_rec.fabric_name[6], 1145 phba->fcf.current_rec.fabric_name[7]); 1146 1147 lpfc_nlp_put(ndlp); 1148 spin_lock_irq(&phba->hbalock); 1149 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 1150 spin_unlock_irq(&phba->hbalock); 1151 clear_bit(FCF_RR_INPROG, &phba->hba_flag); 1152 clear_bit(HBA_DEVLOSS_TMO, &phba->hba_flag); 1153 phba->fcf.fcf_redisc_attempted = 0; /* reset */ 1154 goto out; 1155 } 1156 if (!rc) { 1157 /* Mark the FCF discovery process done */ 1158 if (test_bit(HBA_FIP_SUPPORT, &phba->hba_flag)) 1159 lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP | 1160 LOG_ELS, 1161 "2769 FLOGI to FCF (x%x) " 1162 "completed successfully\n", 1163 phba->fcf.current_rec.fcf_indx); 1164 spin_lock_irq(&phba->hbalock); 1165 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 1166 spin_unlock_irq(&phba->hbalock); 1167 clear_bit(FCF_RR_INPROG, &phba->hba_flag); 1168 clear_bit(HBA_DEVLOSS_TMO, &phba->hba_flag); 1169 phba->fcf.fcf_redisc_attempted = 0; /* reset */ 1170 goto out; 1171 } 1172 } else if (vport->port_state > LPFC_FLOGI && 1173 test_bit(FC_PT2PT, &vport->fc_flag)) { 1174 /* 1175 * In a p2p topology, it is possible that discovery has 1176 * already progressed, and this completion can be ignored. 1177 * Recheck the indicated topology. 1178 */ 1179 if (!sp->cmn.fPort) 1180 goto out; 1181 } 1182 1183 flogifail: 1184 spin_lock_irq(&phba->hbalock); 1185 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 1186 spin_unlock_irq(&phba->hbalock); 1187 1188 if (!lpfc_error_lost_link(vport, ulp_status, ulp_word4)) { 1189 /* FLOGI failed, so just use loop map to make discovery list */ 1190 lpfc_disc_list_loopmap(vport); 1191 1192 /* Start discovery */ 1193 lpfc_disc_start(vport); 1194 } else if (((ulp_status != IOSTAT_LOCAL_REJECT) || 1195 (((ulp_word4 & IOERR_PARAM_MASK) != 1196 IOERR_SLI_ABORTED) && 1197 ((ulp_word4 & IOERR_PARAM_MASK) != 1198 IOERR_SLI_DOWN))) && 1199 (phba->link_state != LPFC_CLEAR_LA)) { 1200 /* If FLOGI failed enable link interrupt. */ 1201 lpfc_issue_clear_la(phba, vport); 1202 } 1203 out: 1204 if (!flogi_in_retry) 1205 clear_bit(HBA_FLOGI_OUTSTANDING, &phba->hba_flag); 1206 1207 lpfc_els_free_iocb(phba, cmdiocb); 1208 lpfc_nlp_put(ndlp); 1209 } 1210 1211 /** 1212 * lpfc_cmpl_els_link_down - Completion callback function for ELS command 1213 * aborted during a link down 1214 * @phba: pointer to lpfc hba data structure. 1215 * @cmdiocb: pointer to lpfc command iocb data structure. 1216 * @rspiocb: pointer to lpfc response iocb data structure. 1217 * 1218 */ 1219 static void 1220 lpfc_cmpl_els_link_down(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 1221 struct lpfc_iocbq *rspiocb) 1222 { 1223 uint32_t *pcmd; 1224 uint32_t cmd; 1225 u32 ulp_status, ulp_word4; 1226 1227 pcmd = (uint32_t *)cmdiocb->cmd_dmabuf->virt; 1228 cmd = *pcmd; 1229 1230 ulp_status = get_job_ulpstatus(phba, rspiocb); 1231 ulp_word4 = get_job_word4(phba, rspiocb); 1232 1233 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 1234 "6445 ELS completes after LINK_DOWN: " 1235 " Status %x/%x cmd x%x flg x%x iotag x%x\n", 1236 ulp_status, ulp_word4, cmd, 1237 cmdiocb->cmd_flag, cmdiocb->iotag); 1238 1239 if (cmdiocb->cmd_flag & LPFC_IO_FABRIC) { 1240 cmdiocb->cmd_flag &= ~LPFC_IO_FABRIC; 1241 atomic_dec(&phba->fabric_iocb_count); 1242 } 1243 lpfc_els_free_iocb(phba, cmdiocb); 1244 } 1245 1246 /** 1247 * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport 1248 * @vport: pointer to a host virtual N_Port data structure. 1249 * @ndlp: pointer to a node-list data structure. 1250 * @retry: number of retries to the command IOCB. 1251 * 1252 * This routine issues a Fabric Login (FLOGI) Request ELS command 1253 * for a @vport. The initiator service parameters are put into the payload 1254 * of the FLOGI Request IOCB and the top-level callback function pointer 1255 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback 1256 * function field. The lpfc_issue_fabric_iocb routine is invoked to send 1257 * out FLOGI ELS command with one outstanding fabric IOCB at a time. 1258 * 1259 * Note that the ndlp reference count will be incremented by 1 for holding the 1260 * ndlp and the reference to ndlp will be stored into the ndlp field of 1261 * the IOCB for the completion callback function to the FLOGI ELS command. 1262 * 1263 * Return code 1264 * 0 - successfully issued flogi iocb for @vport 1265 * 1 - failed to issue flogi iocb for @vport 1266 **/ 1267 static int 1268 lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1269 uint8_t retry) 1270 { 1271 struct lpfc_hba *phba = vport->phba; 1272 struct serv_parm *sp; 1273 union lpfc_wqe128 *wqe = NULL; 1274 IOCB_t *icmd = NULL; 1275 struct lpfc_iocbq *elsiocb; 1276 struct lpfc_iocbq defer_flogi_acc; 1277 u8 *pcmd, ct; 1278 uint16_t cmdsize; 1279 uint32_t tmo, did; 1280 int rc; 1281 1282 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); 1283 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 1284 ndlp->nlp_DID, ELS_CMD_FLOGI); 1285 1286 if (!elsiocb) 1287 return 1; 1288 1289 wqe = &elsiocb->wqe; 1290 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 1291 icmd = &elsiocb->iocb; 1292 1293 /* For FLOGI request, remainder of payload is service parameters */ 1294 *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI; 1295 pcmd += sizeof(uint32_t); 1296 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); 1297 sp = (struct serv_parm *) pcmd; 1298 1299 /* Setup CSPs accordingly for Fabric */ 1300 sp->cmn.e_d_tov = 0; 1301 sp->cmn.w2.r_a_tov = 0; 1302 sp->cmn.virtual_fabric_support = 0; 1303 sp->cls1.classValid = 0; 1304 if (sp->cmn.fcphLow < FC_PH3) 1305 sp->cmn.fcphLow = FC_PH3; 1306 if (sp->cmn.fcphHigh < FC_PH3) 1307 sp->cmn.fcphHigh = FC_PH3; 1308 1309 /* Determine if switch supports priority tagging */ 1310 if (phba->cfg_vmid_priority_tagging) { 1311 sp->cmn.priority_tagging = 1; 1312 /* lpfc_vmid_host_uuid is combination of wwpn and wwnn */ 1313 if (!memchr_inv(vport->lpfc_vmid_host_uuid, 0, 1314 sizeof(vport->lpfc_vmid_host_uuid))) { 1315 memcpy(vport->lpfc_vmid_host_uuid, phba->wwpn, 1316 sizeof(phba->wwpn)); 1317 memcpy(&vport->lpfc_vmid_host_uuid[8], phba->wwnn, 1318 sizeof(phba->wwnn)); 1319 } 1320 } 1321 1322 if (phba->sli_rev == LPFC_SLI_REV4) { 1323 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 1324 LPFC_SLI_INTF_IF_TYPE_0) { 1325 /* FLOGI needs to be 3 for WQE FCFI */ 1326 ct = SLI4_CT_FCFI; 1327 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct); 1328 1329 /* Set the fcfi to the fcfi we registered with */ 1330 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com, 1331 phba->fcf.fcfi); 1332 } 1333 1334 /* Can't do SLI4 class2 without support sequence coalescing */ 1335 sp->cls2.classValid = 0; 1336 sp->cls2.seqDelivery = 0; 1337 } else { 1338 /* Historical, setting sequential-delivery bit for SLI3 */ 1339 sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0; 1340 sp->cls3.seqDelivery = (sp->cls3.classValid) ? 1 : 0; 1341 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { 1342 sp->cmn.request_multiple_Nport = 1; 1343 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */ 1344 icmd->ulpCt_h = 1; 1345 icmd->ulpCt_l = 0; 1346 } else { 1347 sp->cmn.request_multiple_Nport = 0; 1348 } 1349 1350 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) { 1351 icmd->un.elsreq64.myID = 0; 1352 icmd->un.elsreq64.fl = 1; 1353 } 1354 } 1355 1356 tmo = phba->fc_ratov; 1357 phba->fc_ratov = LPFC_DISC_FLOGI_TMO; 1358 lpfc_set_disctmo(vport); 1359 phba->fc_ratov = tmo; 1360 1361 phba->fc_stat.elsXmitFLOGI++; 1362 elsiocb->cmd_cmpl = lpfc_cmpl_els_flogi; 1363 1364 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1365 "Issue FLOGI: opt:x%x", 1366 phba->sli3_options, 0, 0); 1367 1368 elsiocb->ndlp = lpfc_nlp_get(ndlp); 1369 if (!elsiocb->ndlp) { 1370 lpfc_els_free_iocb(phba, elsiocb); 1371 return 1; 1372 } 1373 1374 /* Avoid race with FLOGI completion and hba_flags. */ 1375 set_bit(HBA_FLOGI_ISSUED, &phba->hba_flag); 1376 set_bit(HBA_FLOGI_OUTSTANDING, &phba->hba_flag); 1377 1378 rc = lpfc_issue_fabric_iocb(phba, elsiocb); 1379 if (rc == IOCB_ERROR) { 1380 clear_bit(HBA_FLOGI_ISSUED, &phba->hba_flag); 1381 clear_bit(HBA_FLOGI_OUTSTANDING, &phba->hba_flag); 1382 lpfc_els_free_iocb(phba, elsiocb); 1383 lpfc_nlp_put(ndlp); 1384 return 1; 1385 } 1386 1387 /* Clear external loopback plug detected flag */ 1388 phba->link_flag &= ~LS_EXTERNAL_LOOPBACK; 1389 1390 /* Check for a deferred FLOGI ACC condition */ 1391 if (phba->defer_flogi_acc.flag) { 1392 /* lookup ndlp for received FLOGI */ 1393 ndlp = lpfc_findnode_did(vport, 0); 1394 if (!ndlp) 1395 return 0; 1396 1397 did = vport->fc_myDID; 1398 vport->fc_myDID = Fabric_DID; 1399 1400 memset(&defer_flogi_acc, 0, sizeof(struct lpfc_iocbq)); 1401 1402 if (phba->sli_rev == LPFC_SLI_REV4) { 1403 bf_set(wqe_ctxt_tag, 1404 &defer_flogi_acc.wqe.xmit_els_rsp.wqe_com, 1405 phba->defer_flogi_acc.rx_id); 1406 bf_set(wqe_rcvoxid, 1407 &defer_flogi_acc.wqe.xmit_els_rsp.wqe_com, 1408 phba->defer_flogi_acc.ox_id); 1409 } else { 1410 icmd = &defer_flogi_acc.iocb; 1411 icmd->ulpContext = phba->defer_flogi_acc.rx_id; 1412 icmd->unsli3.rcvsli3.ox_id = 1413 phba->defer_flogi_acc.ox_id; 1414 } 1415 1416 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1417 "3354 Xmit deferred FLOGI ACC: rx_id: x%x," 1418 " ox_id: x%x, hba_flag x%lx\n", 1419 phba->defer_flogi_acc.rx_id, 1420 phba->defer_flogi_acc.ox_id, phba->hba_flag); 1421 1422 /* Send deferred FLOGI ACC */ 1423 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, &defer_flogi_acc, 1424 ndlp, NULL); 1425 1426 phba->defer_flogi_acc.flag = false; 1427 1428 /* Decrement the held ndlp that was incremented when the 1429 * deferred flogi acc flag was set. 1430 */ 1431 if (phba->defer_flogi_acc.ndlp) { 1432 lpfc_nlp_put(phba->defer_flogi_acc.ndlp); 1433 phba->defer_flogi_acc.ndlp = NULL; 1434 } 1435 1436 vport->fc_myDID = did; 1437 } 1438 1439 return 0; 1440 } 1441 1442 /** 1443 * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs 1444 * @phba: pointer to lpfc hba data structure. 1445 * 1446 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs 1447 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq 1448 * list and issues an abort IOCB commond on each outstanding IOCB that 1449 * contains a active Fabric_DID ndlp. Note that this function is to issue 1450 * the abort IOCB command on all the outstanding IOCBs, thus when this 1451 * function returns, it does not guarantee all the IOCBs are actually aborted. 1452 * 1453 * Return code 1454 * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0) 1455 **/ 1456 int 1457 lpfc_els_abort_flogi(struct lpfc_hba *phba) 1458 { 1459 struct lpfc_sli_ring *pring; 1460 struct lpfc_iocbq *iocb, *next_iocb; 1461 struct lpfc_nodelist *ndlp; 1462 u32 ulp_command; 1463 1464 /* Abort outstanding I/O on NPort <nlp_DID> */ 1465 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, 1466 "0201 Abort outstanding I/O on NPort x%x\n", 1467 Fabric_DID); 1468 1469 pring = lpfc_phba_elsring(phba); 1470 if (unlikely(!pring)) 1471 return -EIO; 1472 1473 /* 1474 * Check the txcmplq for an iocb that matches the nport the driver is 1475 * searching for. 1476 */ 1477 spin_lock_irq(&phba->hbalock); 1478 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 1479 ulp_command = get_job_cmnd(phba, iocb); 1480 if (ulp_command == CMD_ELS_REQUEST64_CR) { 1481 ndlp = iocb->ndlp; 1482 if (ndlp && ndlp->nlp_DID == Fabric_DID) { 1483 if (test_bit(FC_PT2PT, &phba->pport->fc_flag) && 1484 !test_bit(FC_PT2PT_PLOGI, 1485 &phba->pport->fc_flag)) 1486 iocb->fabric_cmd_cmpl = 1487 lpfc_ignore_els_cmpl; 1488 lpfc_sli_issue_abort_iotag(phba, pring, iocb, 1489 NULL); 1490 } 1491 } 1492 } 1493 /* Make sure HBA is alive */ 1494 lpfc_issue_hb_tmo(phba); 1495 1496 spin_unlock_irq(&phba->hbalock); 1497 1498 return 0; 1499 } 1500 1501 /** 1502 * lpfc_initial_flogi - Issue an initial fabric login for a vport 1503 * @vport: pointer to a host virtual N_Port data structure. 1504 * 1505 * This routine issues an initial Fabric Login (FLOGI) for the @vport 1506 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from 1507 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and 1508 * put it into the @vport's ndlp list. If an inactive ndlp found on the list, 1509 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine 1510 * is then invoked with the @vport and the ndlp to perform the FLOGI for the 1511 * @vport. 1512 * 1513 * Return code 1514 * 0 - failed to issue initial flogi for @vport 1515 * 1 - successfully issued initial flogi for @vport 1516 **/ 1517 int 1518 lpfc_initial_flogi(struct lpfc_vport *vport) 1519 { 1520 struct lpfc_nodelist *ndlp; 1521 1522 vport->port_state = LPFC_FLOGI; 1523 lpfc_set_disctmo(vport); 1524 1525 /* First look for the Fabric ndlp */ 1526 ndlp = lpfc_findnode_did(vport, Fabric_DID); 1527 if (!ndlp) { 1528 /* Cannot find existing Fabric ndlp, so allocate a new one */ 1529 ndlp = lpfc_nlp_init(vport, Fabric_DID); 1530 if (!ndlp) 1531 return 0; 1532 /* Set the node type */ 1533 ndlp->nlp_type |= NLP_FABRIC; 1534 1535 /* Put ndlp onto node list */ 1536 lpfc_enqueue_node(vport, ndlp); 1537 } 1538 1539 /* Reset the Fabric flag, topology change may have happened */ 1540 clear_bit(FC_FABRIC, &vport->fc_flag); 1541 if (lpfc_issue_els_flogi(vport, ndlp, 0)) { 1542 /* A node reference should be retained while registered with a 1543 * transport or dev-loss-evt work is pending. 1544 * Otherwise, decrement node reference to trigger release. 1545 */ 1546 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) && 1547 !test_bit(NLP_IN_DEV_LOSS, &ndlp->nlp_flag)) 1548 lpfc_nlp_put(ndlp); 1549 return 0; 1550 } 1551 return 1; 1552 } 1553 1554 /** 1555 * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport 1556 * @vport: pointer to a host virtual N_Port data structure. 1557 * 1558 * This routine issues an initial Fabric Discover (FDISC) for the @vport 1559 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from 1560 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and 1561 * put it into the @vport's ndlp list. If an inactive ndlp found on the list, 1562 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine 1563 * is then invoked with the @vport and the ndlp to perform the FDISC for the 1564 * @vport. 1565 * 1566 * Return code 1567 * 0 - failed to issue initial fdisc for @vport 1568 * 1 - successfully issued initial fdisc for @vport 1569 **/ 1570 int 1571 lpfc_initial_fdisc(struct lpfc_vport *vport) 1572 { 1573 struct lpfc_nodelist *ndlp; 1574 1575 /* First look for the Fabric ndlp */ 1576 ndlp = lpfc_findnode_did(vport, Fabric_DID); 1577 if (!ndlp) { 1578 /* Cannot find existing Fabric ndlp, so allocate a new one */ 1579 ndlp = lpfc_nlp_init(vport, Fabric_DID); 1580 if (!ndlp) 1581 return 0; 1582 1583 /* NPIV is only supported in Fabrics. */ 1584 ndlp->nlp_type |= NLP_FABRIC; 1585 1586 /* Put ndlp onto node list */ 1587 lpfc_enqueue_node(vport, ndlp); 1588 } 1589 1590 if (lpfc_issue_els_fdisc(vport, ndlp, 0)) { 1591 /* A node reference should be retained while registered with a 1592 * transport or dev-loss-evt work is pending. 1593 * Otherwise, decrement node reference to trigger release. 1594 */ 1595 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) && 1596 !test_bit(NLP_IN_DEV_LOSS, &ndlp->nlp_flag)) 1597 lpfc_nlp_put(ndlp); 1598 return 0; 1599 } 1600 return 1; 1601 } 1602 1603 /** 1604 * lpfc_more_plogi - Check and issue remaining plogis for a vport 1605 * @vport: pointer to a host virtual N_Port data structure. 1606 * 1607 * This routine checks whether there are more remaining Port Logins 1608 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine 1609 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes 1610 * to issue ELS PLOGIs up to the configured discover threads with the 1611 * @vport (@vport->cfg_discovery_threads). The function also decrement 1612 * the @vport's num_disc_node by 1 if it is not already 0. 1613 **/ 1614 void 1615 lpfc_more_plogi(struct lpfc_vport *vport) 1616 { 1617 if (vport->num_disc_nodes) 1618 vport->num_disc_nodes--; 1619 1620 /* Continue discovery with <num_disc_nodes> PLOGIs to go */ 1621 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1622 "0232 Continue discovery with %d PLOGIs to go " 1623 "Data: x%x x%lx x%x\n", 1624 vport->num_disc_nodes, 1625 atomic_read(&vport->fc_plogi_cnt), 1626 vport->fc_flag, vport->port_state); 1627 /* Check to see if there are more PLOGIs to be sent */ 1628 if (test_bit(FC_NLP_MORE, &vport->fc_flag)) 1629 /* go thru NPR nodes and issue any remaining ELS PLOGIs */ 1630 lpfc_els_disc_plogi(vport); 1631 1632 return; 1633 } 1634 1635 /** 1636 * lpfc_plogi_confirm_nport - Confirm plogi wwpn matches stored ndlp 1637 * @phba: pointer to lpfc hba data structure. 1638 * @prsp: pointer to response IOCB payload. 1639 * @ndlp: pointer to a node-list data structure. 1640 * 1641 * This routine checks and indicates whether the WWPN of an N_Port, retrieved 1642 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt. 1643 * The following cases are considered N_Port confirmed: 1644 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches 1645 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but 1646 * it does not have WWPN assigned either. If the WWPN is confirmed, the 1647 * pointer to the @ndlp will be returned. If the WWPN is not confirmed: 1648 * 1) if there is a node on vport list other than the @ndlp with the same 1649 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked 1650 * on that node to release the RPI associated with the node; 2) if there is 1651 * no node found on vport list with the same WWPN of the N_Port PLOGI logged 1652 * into, a new node shall be allocated (or activated). In either case, the 1653 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall 1654 * be released and the new_ndlp shall be put on to the vport node list and 1655 * its pointer returned as the confirmed node. 1656 * 1657 * Note that before the @ndlp got "released", the keepDID from not-matching 1658 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID 1659 * of the @ndlp. This is because the release of @ndlp is actually to put it 1660 * into an inactive state on the vport node list and the vport node list 1661 * management algorithm does not allow two node with a same DID. 1662 * 1663 * Return code 1664 * pointer to the PLOGI N_Port @ndlp 1665 **/ 1666 static struct lpfc_nodelist * 1667 lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, 1668 struct lpfc_nodelist *ndlp) 1669 { 1670 struct lpfc_vport *vport = ndlp->vport; 1671 struct lpfc_nodelist *new_ndlp; 1672 struct serv_parm *sp; 1673 uint8_t name[sizeof(struct lpfc_name)]; 1674 uint32_t keepDID = 0; 1675 int rc; 1676 unsigned long keep_nlp_flag = 0, keep_new_nlp_flag = 0; 1677 uint16_t keep_nlp_state; 1678 u32 keep_nlp_fc4_type = 0; 1679 struct lpfc_nvme_rport *keep_nrport = NULL; 1680 unsigned long *active_rrqs_xri_bitmap = NULL; 1681 1682 sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t)); 1683 memset(name, 0, sizeof(struct lpfc_name)); 1684 1685 /* Now we find out if the NPort we are logging into, matches the WWPN 1686 * we have for that ndlp. If not, we have some work to do. 1687 */ 1688 new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName); 1689 1690 /* return immediately if the WWPN matches ndlp */ 1691 if (new_ndlp == ndlp) 1692 return ndlp; 1693 1694 if (phba->sli_rev == LPFC_SLI_REV4) { 1695 active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool, 1696 GFP_KERNEL); 1697 if (active_rrqs_xri_bitmap) 1698 memset(active_rrqs_xri_bitmap, 0, 1699 phba->cfg_rrq_xri_bitmap_sz); 1700 } 1701 1702 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE, 1703 "3178 PLOGI confirm: ndlp x%x x%lx x%x: " 1704 "new_ndlp x%x x%lx x%x\n", 1705 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_fc4_type, 1706 (new_ndlp ? new_ndlp->nlp_DID : 0), 1707 (new_ndlp ? new_ndlp->nlp_flag : 0), 1708 (new_ndlp ? new_ndlp->nlp_fc4_type : 0)); 1709 1710 if (!new_ndlp) { 1711 rc = memcmp(&ndlp->nlp_portname, name, 1712 sizeof(struct lpfc_name)); 1713 if (!rc) { 1714 if (active_rrqs_xri_bitmap) 1715 mempool_free(active_rrqs_xri_bitmap, 1716 phba->active_rrq_pool); 1717 return ndlp; 1718 } 1719 new_ndlp = lpfc_nlp_init(vport, ndlp->nlp_DID); 1720 if (!new_ndlp) { 1721 if (active_rrqs_xri_bitmap) 1722 mempool_free(active_rrqs_xri_bitmap, 1723 phba->active_rrq_pool); 1724 return ndlp; 1725 } 1726 } else { 1727 if (phba->sli_rev == LPFC_SLI_REV4 && 1728 active_rrqs_xri_bitmap) 1729 memcpy(active_rrqs_xri_bitmap, 1730 new_ndlp->active_rrqs_xri_bitmap, 1731 phba->cfg_rrq_xri_bitmap_sz); 1732 1733 /* 1734 * Unregister from backend if not done yet. Could have been 1735 * skipped due to ADISC 1736 */ 1737 lpfc_nlp_unreg_node(vport, new_ndlp); 1738 } 1739 1740 keepDID = new_ndlp->nlp_DID; 1741 1742 /* At this point in this routine, we know new_ndlp will be 1743 * returned. however, any previous GID_FTs that were done 1744 * would have updated nlp_fc4_type in ndlp, so we must ensure 1745 * new_ndlp has the right value. 1746 */ 1747 if (test_bit(FC_FABRIC, &vport->fc_flag)) { 1748 keep_nlp_fc4_type = new_ndlp->nlp_fc4_type; 1749 new_ndlp->nlp_fc4_type = ndlp->nlp_fc4_type; 1750 } 1751 1752 lpfc_unreg_rpi(vport, new_ndlp); 1753 new_ndlp->nlp_DID = ndlp->nlp_DID; 1754 new_ndlp->nlp_prev_state = ndlp->nlp_prev_state; 1755 if (phba->sli_rev == LPFC_SLI_REV4) 1756 memcpy(new_ndlp->active_rrqs_xri_bitmap, 1757 ndlp->active_rrqs_xri_bitmap, 1758 phba->cfg_rrq_xri_bitmap_sz); 1759 1760 /* Lock both ndlps */ 1761 spin_lock_irq(&ndlp->lock); 1762 spin_lock_irq(&new_ndlp->lock); 1763 keep_new_nlp_flag = new_ndlp->nlp_flag; 1764 keep_nlp_flag = ndlp->nlp_flag; 1765 new_ndlp->nlp_flag = ndlp->nlp_flag; 1766 1767 /* if new_ndlp had NLP_UNREG_INP set, keep it */ 1768 if (test_bit(NLP_UNREG_INP, &keep_new_nlp_flag)) 1769 set_bit(NLP_UNREG_INP, &new_ndlp->nlp_flag); 1770 else 1771 clear_bit(NLP_UNREG_INP, &new_ndlp->nlp_flag); 1772 1773 /* if new_ndlp had NLP_RPI_REGISTERED set, keep it */ 1774 if (test_bit(NLP_RPI_REGISTERED, &keep_new_nlp_flag)) 1775 set_bit(NLP_RPI_REGISTERED, &new_ndlp->nlp_flag); 1776 else 1777 clear_bit(NLP_RPI_REGISTERED, &new_ndlp->nlp_flag); 1778 1779 /* 1780 * Retain the DROPPED flag. This will take care of the init 1781 * refcount when affecting the state change 1782 */ 1783 if (test_bit(NLP_DROPPED, &keep_new_nlp_flag)) 1784 set_bit(NLP_DROPPED, &new_ndlp->nlp_flag); 1785 else 1786 clear_bit(NLP_DROPPED, &new_ndlp->nlp_flag); 1787 1788 ndlp->nlp_flag = keep_new_nlp_flag; 1789 1790 /* if ndlp had NLP_UNREG_INP set, keep it */ 1791 if (test_bit(NLP_UNREG_INP, &keep_nlp_flag)) 1792 set_bit(NLP_UNREG_INP, &ndlp->nlp_flag); 1793 else 1794 clear_bit(NLP_UNREG_INP, &ndlp->nlp_flag); 1795 1796 /* if ndlp had NLP_RPI_REGISTERED set, keep it */ 1797 if (test_bit(NLP_RPI_REGISTERED, &keep_nlp_flag)) 1798 set_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag); 1799 else 1800 clear_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag); 1801 1802 /* 1803 * Retain the DROPPED flag. This will take care of the init 1804 * refcount when affecting the state change 1805 */ 1806 if (test_bit(NLP_DROPPED, &keep_nlp_flag)) 1807 set_bit(NLP_DROPPED, &ndlp->nlp_flag); 1808 else 1809 clear_bit(NLP_DROPPED, &ndlp->nlp_flag); 1810 1811 spin_unlock_irq(&new_ndlp->lock); 1812 spin_unlock_irq(&ndlp->lock); 1813 1814 /* Set nlp_states accordingly */ 1815 keep_nlp_state = new_ndlp->nlp_state; 1816 lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); 1817 1818 /* interchange the nvme remoteport structs */ 1819 keep_nrport = new_ndlp->nrport; 1820 new_ndlp->nrport = ndlp->nrport; 1821 1822 /* Move this back to NPR state */ 1823 if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) { 1824 /* The ndlp doesn't have a portname yet, but does have an 1825 * NPort ID. The new_ndlp portname matches the Rport's 1826 * portname. Reinstantiate the new_ndlp and reset the ndlp. 1827 */ 1828 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1829 "3179 PLOGI confirm NEW: %x %x\n", 1830 new_ndlp->nlp_DID, keepDID); 1831 1832 /* Two ndlps cannot have the same did on the nodelist. 1833 * The KeepDID and keep_nlp_fc4_type need to be swapped 1834 * because ndlp is inflight with no WWPN. 1835 */ 1836 ndlp->nlp_DID = keepDID; 1837 ndlp->nlp_fc4_type = keep_nlp_fc4_type; 1838 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state); 1839 if (phba->sli_rev == LPFC_SLI_REV4 && 1840 active_rrqs_xri_bitmap) 1841 memcpy(ndlp->active_rrqs_xri_bitmap, 1842 active_rrqs_xri_bitmap, 1843 phba->cfg_rrq_xri_bitmap_sz); 1844 1845 } else { 1846 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1847 "3180 PLOGI confirm SWAP: %x %x\n", 1848 new_ndlp->nlp_DID, keepDID); 1849 1850 lpfc_unreg_rpi(vport, ndlp); 1851 1852 /* The ndlp and new_ndlp both have WWPNs but are swapping 1853 * NPort Ids and attributes. 1854 */ 1855 ndlp->nlp_DID = keepDID; 1856 ndlp->nlp_fc4_type = keep_nlp_fc4_type; 1857 1858 if (phba->sli_rev == LPFC_SLI_REV4 && 1859 active_rrqs_xri_bitmap) 1860 memcpy(ndlp->active_rrqs_xri_bitmap, 1861 active_rrqs_xri_bitmap, 1862 phba->cfg_rrq_xri_bitmap_sz); 1863 1864 /* Since we are switching over to the new_ndlp, 1865 * reset the old ndlp state 1866 */ 1867 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || 1868 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) 1869 keep_nlp_state = NLP_STE_NPR_NODE; 1870 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state); 1871 ndlp->nrport = keep_nrport; 1872 } 1873 1874 /* 1875 * If ndlp is not associated with any rport we can drop it here else 1876 * let dev_loss_tmo_callbk trigger DEVICE_RM event 1877 */ 1878 if (!ndlp->rport && (ndlp->nlp_state == NLP_STE_NPR_NODE)) 1879 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 1880 1881 if (phba->sli_rev == LPFC_SLI_REV4 && 1882 active_rrqs_xri_bitmap) 1883 mempool_free(active_rrqs_xri_bitmap, 1884 phba->active_rrq_pool); 1885 1886 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE, 1887 "3173 PLOGI confirm exit: new_ndlp x%x x%lx x%x\n", 1888 new_ndlp->nlp_DID, new_ndlp->nlp_flag, 1889 new_ndlp->nlp_fc4_type); 1890 1891 return new_ndlp; 1892 } 1893 1894 /** 1895 * lpfc_end_rscn - Check and handle more rscn for a vport 1896 * @vport: pointer to a host virtual N_Port data structure. 1897 * 1898 * This routine checks whether more Registration State Change 1899 * Notifications (RSCNs) came in while the discovery state machine was in 1900 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be 1901 * invoked to handle the additional RSCNs for the @vport. Otherwise, the 1902 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of 1903 * handling the RSCNs. 1904 **/ 1905 void 1906 lpfc_end_rscn(struct lpfc_vport *vport) 1907 { 1908 1909 if (test_bit(FC_RSCN_MODE, &vport->fc_flag)) { 1910 /* 1911 * Check to see if more RSCNs came in while we were 1912 * processing this one. 1913 */ 1914 if (vport->fc_rscn_id_cnt || 1915 test_bit(FC_RSCN_DISCOVERY, &vport->fc_flag)) 1916 lpfc_els_handle_rscn(vport); 1917 else 1918 clear_bit(FC_RSCN_MODE, &vport->fc_flag); 1919 } 1920 } 1921 1922 /** 1923 * lpfc_cmpl_els_rrq - Completion handled for els RRQs. 1924 * @phba: pointer to lpfc hba data structure. 1925 * @cmdiocb: pointer to lpfc command iocb data structure. 1926 * @rspiocb: pointer to lpfc response iocb data structure. 1927 * 1928 * This routine will call the clear rrq function to free the rrq and 1929 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not 1930 * exist then the clear_rrq is still called because the rrq needs to 1931 * be freed. 1932 **/ 1933 1934 static void 1935 lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 1936 struct lpfc_iocbq *rspiocb) 1937 { 1938 struct lpfc_vport *vport = cmdiocb->vport; 1939 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 1940 struct lpfc_node_rrq *rrq; 1941 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 1942 u32 ulp_word4 = get_job_word4(phba, rspiocb); 1943 1944 /* we pass cmdiocb to state machine which needs rspiocb as well */ 1945 rrq = cmdiocb->context_un.rrq; 1946 cmdiocb->rsp_iocb = rspiocb; 1947 1948 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1949 "RRQ cmpl: status:x%x/x%x did:x%x", 1950 ulp_status, ulp_word4, 1951 get_job_els_rsp64_did(phba, cmdiocb)); 1952 1953 1954 /* rrq completes to NPort <nlp_DID> */ 1955 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1956 "2880 RRQ completes to DID x%x " 1957 "Data: x%x x%x x%x x%x x%x\n", 1958 ndlp->nlp_DID, ulp_status, ulp_word4, 1959 get_wqe_tmo(cmdiocb), rrq->xritag, rrq->rxid); 1960 1961 if (ulp_status) { 1962 /* Check for retry */ 1963 /* Warn RRQ status Don't print the vport to vport rjts */ 1964 if (ulp_status != IOSTAT_LS_RJT || 1965 (((ulp_word4) >> 16 != LSRJT_INVALID_CMD) && 1966 ((ulp_word4) >> 16 != LSRJT_UNABLE_TPC)) || 1967 (phba)->pport->cfg_log_verbose & LOG_ELS) 1968 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 1969 "2881 RRQ DID:%06X Status:" 1970 "x%x/x%x\n", 1971 ndlp->nlp_DID, ulp_status, 1972 ulp_word4); 1973 } 1974 1975 lpfc_clr_rrq_active(phba, rrq->xritag, rrq); 1976 lpfc_els_free_iocb(phba, cmdiocb); 1977 lpfc_nlp_put(ndlp); 1978 return; 1979 } 1980 /** 1981 * lpfc_cmpl_els_plogi - Completion callback function for plogi 1982 * @phba: pointer to lpfc hba data structure. 1983 * @cmdiocb: pointer to lpfc command iocb data structure. 1984 * @rspiocb: pointer to lpfc response iocb data structure. 1985 * 1986 * This routine is the completion callback function for issuing the Port 1987 * Login (PLOGI) command. For PLOGI completion, there must be an active 1988 * ndlp on the vport node list that matches the remote node ID from the 1989 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply 1990 * ignored and command IOCB released. The PLOGI response IOCB status is 1991 * checked for error conditions. If there is error status reported, PLOGI 1992 * retry shall be attempted by invoking the lpfc_els_retry() routine. 1993 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on 1994 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine 1995 * (DSM) is set for this PLOGI completion. Finally, it checks whether 1996 * there are additional N_Port nodes with the vport that need to perform 1997 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition 1998 * PLOGIs. 1999 **/ 2000 static void 2001 lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2002 struct lpfc_iocbq *rspiocb) 2003 { 2004 struct lpfc_vport *vport = cmdiocb->vport; 2005 IOCB_t *irsp; 2006 struct lpfc_nodelist *ndlp, *free_ndlp; 2007 struct lpfc_dmabuf *prsp; 2008 bool disc; 2009 struct serv_parm *sp = NULL; 2010 u32 ulp_status, ulp_word4, did, iotag; 2011 bool release_node = false; 2012 2013 /* we pass cmdiocb to state machine which needs rspiocb as well */ 2014 cmdiocb->rsp_iocb = rspiocb; 2015 2016 ulp_status = get_job_ulpstatus(phba, rspiocb); 2017 ulp_word4 = get_job_word4(phba, rspiocb); 2018 did = get_job_els_rsp64_did(phba, cmdiocb); 2019 2020 if (phba->sli_rev == LPFC_SLI_REV4) { 2021 iotag = get_wqe_reqtag(cmdiocb); 2022 } else { 2023 irsp = &rspiocb->iocb; 2024 iotag = irsp->ulpIoTag; 2025 } 2026 2027 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2028 "PLOGI cmpl: status:x%x/x%x did:x%x", 2029 ulp_status, ulp_word4, did); 2030 2031 ndlp = lpfc_findnode_did(vport, did); 2032 if (!ndlp) { 2033 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 2034 "0136 PLOGI completes to NPort x%x " 2035 "with no ndlp. Data: x%x x%x x%x\n", 2036 did, ulp_status, ulp_word4, iotag); 2037 goto out_freeiocb; 2038 } 2039 2040 /* Since ndlp can be freed in the disc state machine, note if this node 2041 * is being used during discovery. 2042 */ 2043 disc = test_and_clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2044 2045 /* PLOGI completes to NPort <nlp_DID> */ 2046 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 2047 "0102 PLOGI completes to NPort x%06x " 2048 "IoTag x%x Data: x%x x%x x%x x%x x%x\n", 2049 ndlp->nlp_DID, iotag, 2050 ndlp->nlp_fc4_type, 2051 ulp_status, ulp_word4, 2052 disc, vport->num_disc_nodes); 2053 2054 /* Check to see if link went down during discovery */ 2055 if (lpfc_els_chk_latt(vport)) { 2056 set_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2057 goto out; 2058 } 2059 2060 if (ulp_status) { 2061 /* Check for retry */ 2062 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { 2063 /* ELS command is being retried */ 2064 if (disc) 2065 set_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2066 goto out; 2067 } 2068 /* Warn PLOGI status Don't print the vport to vport rjts */ 2069 if (ulp_status != IOSTAT_LS_RJT || 2070 (((ulp_word4) >> 16 != LSRJT_INVALID_CMD) && 2071 ((ulp_word4) >> 16 != LSRJT_UNABLE_TPC)) || 2072 (phba)->pport->cfg_log_verbose & LOG_ELS) 2073 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 2074 "2753 PLOGI DID:%06X " 2075 "Status:x%x/x%x\n", 2076 ndlp->nlp_DID, ulp_status, 2077 ulp_word4); 2078 2079 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ 2080 if (!lpfc_error_lost_link(vport, ulp_status, ulp_word4)) 2081 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2082 NLP_EVT_CMPL_PLOGI); 2083 2084 /* If a PLOGI collision occurred, the node needs to continue 2085 * with the reglogin process. 2086 */ 2087 spin_lock_irq(&ndlp->lock); 2088 if ((test_bit(NLP_ACC_REGLOGIN, &ndlp->nlp_flag) || 2089 test_bit(NLP_RCV_PLOGI, &ndlp->nlp_flag)) && 2090 ndlp->nlp_state == NLP_STE_REG_LOGIN_ISSUE) { 2091 spin_unlock_irq(&ndlp->lock); 2092 goto out; 2093 } 2094 2095 /* No PLOGI collision and the node is not registered with the 2096 * scsi or nvme transport. It is no longer an active node. Just 2097 * start the device remove process. 2098 */ 2099 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { 2100 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2101 if (!test_bit(NLP_IN_DEV_LOSS, &ndlp->nlp_flag)) 2102 release_node = true; 2103 } 2104 spin_unlock_irq(&ndlp->lock); 2105 2106 if (release_node) 2107 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2108 NLP_EVT_DEVICE_RM); 2109 } else { 2110 /* Good status, call state machine */ 2111 prsp = list_get_first(&cmdiocb->cmd_dmabuf->list, 2112 struct lpfc_dmabuf, list); 2113 if (!prsp) 2114 goto out; 2115 if (!lpfc_is_els_acc_rsp(prsp)) 2116 goto out; 2117 ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp); 2118 2119 sp = (struct serv_parm *)((u8 *)prsp->virt + 2120 sizeof(u32)); 2121 2122 ndlp->vmid_support = 0; 2123 if ((phba->cfg_vmid_app_header && sp->cmn.app_hdr_support) || 2124 (phba->cfg_vmid_priority_tagging && 2125 sp->cmn.priority_tagging)) { 2126 lpfc_printf_log(phba, KERN_DEBUG, LOG_ELS, 2127 "4018 app_hdr_support %d tagging %d DID x%x\n", 2128 sp->cmn.app_hdr_support, 2129 sp->cmn.priority_tagging, 2130 ndlp->nlp_DID); 2131 /* if the dest port supports VMID, mark it in ndlp */ 2132 ndlp->vmid_support = 1; 2133 } 2134 2135 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2136 NLP_EVT_CMPL_PLOGI); 2137 } 2138 2139 if (disc && vport->num_disc_nodes) { 2140 /* Check to see if there are more PLOGIs to be sent */ 2141 lpfc_more_plogi(vport); 2142 2143 if (vport->num_disc_nodes == 0) { 2144 clear_bit(FC_NDISC_ACTIVE, &vport->fc_flag); 2145 2146 lpfc_can_disctmo(vport); 2147 lpfc_end_rscn(vport); 2148 } 2149 } 2150 2151 out: 2152 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 2153 "PLOGI Cmpl PUT: did:x%x refcnt %d", 2154 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 2155 2156 out_freeiocb: 2157 /* Release the reference on the original I/O request. */ 2158 free_ndlp = cmdiocb->ndlp; 2159 2160 lpfc_els_free_iocb(phba, cmdiocb); 2161 lpfc_nlp_put(free_ndlp); 2162 return; 2163 } 2164 2165 /** 2166 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport 2167 * @vport: pointer to a host virtual N_Port data structure. 2168 * @did: destination port identifier. 2169 * @retry: number of retries to the command IOCB. 2170 * 2171 * This routine issues a Port Login (PLOGI) command to a remote N_Port 2172 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port, 2173 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list. 2174 * This routine constructs the proper fields of the PLOGI IOCB and invokes 2175 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command. 2176 * 2177 * Note that the ndlp reference count will be incremented by 1 for holding 2178 * the ndlp and the reference to ndlp will be stored into the ndlp field 2179 * of the IOCB for the completion callback function to the PLOGI ELS command. 2180 * 2181 * Return code 2182 * 0 - Successfully issued a plogi for @vport 2183 * 1 - failed to issue a plogi for @vport 2184 **/ 2185 int 2186 lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) 2187 { 2188 struct lpfc_hba *phba = vport->phba; 2189 struct serv_parm *sp; 2190 struct lpfc_nodelist *ndlp; 2191 struct lpfc_iocbq *elsiocb; 2192 uint8_t *pcmd; 2193 uint16_t cmdsize; 2194 int ret; 2195 2196 ndlp = lpfc_findnode_did(vport, did); 2197 if (!ndlp) 2198 return 1; 2199 2200 /* Defer the processing of the issue PLOGI until after the 2201 * outstanding UNREG_RPI mbox command completes, unless we 2202 * are going offline. This logic does not apply for Fabric DIDs 2203 */ 2204 if ((test_bit(NLP_IGNR_REG_CMPL, &ndlp->nlp_flag) || 2205 test_bit(NLP_UNREG_INP, &ndlp->nlp_flag)) && 2206 ((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 2207 !test_bit(FC_OFFLINE_MODE, &vport->fc_flag)) { 2208 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2209 "4110 Issue PLOGI x%x deferred " 2210 "on NPort x%x rpi x%x flg x%lx Data:" 2211 " x%px\n", 2212 ndlp->nlp_defer_did, ndlp->nlp_DID, 2213 ndlp->nlp_rpi, ndlp->nlp_flag, ndlp); 2214 2215 /* We can only defer 1st PLOGI */ 2216 if (ndlp->nlp_defer_did == NLP_EVT_NOTHING_PENDING) 2217 ndlp->nlp_defer_did = did; 2218 return 0; 2219 } 2220 2221 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); 2222 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, 2223 ELS_CMD_PLOGI); 2224 if (!elsiocb) 2225 return 1; 2226 2227 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 2228 2229 /* For PLOGI request, remainder of payload is service parameters */ 2230 *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; 2231 pcmd += sizeof(uint32_t); 2232 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); 2233 sp = (struct serv_parm *) pcmd; 2234 2235 /* 2236 * If we are a N-port connected to a Fabric, fix-up paramm's so logins 2237 * to device on remote loops work. 2238 */ 2239 if (test_bit(FC_FABRIC, &vport->fc_flag) && 2240 !test_bit(FC_PUBLIC_LOOP, &vport->fc_flag)) 2241 sp->cmn.altBbCredit = 1; 2242 2243 if (sp->cmn.fcphLow < FC_PH_4_3) 2244 sp->cmn.fcphLow = FC_PH_4_3; 2245 2246 if (sp->cmn.fcphHigh < FC_PH3) 2247 sp->cmn.fcphHigh = FC_PH3; 2248 2249 sp->cmn.valid_vendor_ver_level = 0; 2250 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion)); 2251 sp->cmn.bbRcvSizeMsb &= 0xF; 2252 2253 /* Check if the destination port supports VMID */ 2254 ndlp->vmid_support = 0; 2255 if (vport->vmid_priority_tagging) 2256 sp->cmn.priority_tagging = 1; 2257 else if (phba->cfg_vmid_app_header && 2258 bf_get(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags)) 2259 sp->cmn.app_hdr_support = 1; 2260 2261 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2262 "Issue PLOGI: did:x%x", 2263 did, 0, 0); 2264 2265 /* If our firmware supports this feature, convey that 2266 * information to the target using the vendor specific field. 2267 */ 2268 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) { 2269 sp->cmn.valid_vendor_ver_level = 1; 2270 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID); 2271 sp->un.vv.flags = cpu_to_be32(LPFC_VV_SUPPRESS_RSP); 2272 } 2273 2274 phba->fc_stat.elsXmitPLOGI++; 2275 elsiocb->cmd_cmpl = lpfc_cmpl_els_plogi; 2276 2277 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2278 "Issue PLOGI: did:x%x refcnt %d", 2279 did, kref_read(&ndlp->kref), 0); 2280 elsiocb->ndlp = lpfc_nlp_get(ndlp); 2281 if (!elsiocb->ndlp) { 2282 lpfc_els_free_iocb(phba, elsiocb); 2283 return 1; 2284 } 2285 2286 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 2287 if (ret) { 2288 lpfc_els_free_iocb(phba, elsiocb); 2289 lpfc_nlp_put(ndlp); 2290 return 1; 2291 } 2292 2293 return 0; 2294 } 2295 2296 /** 2297 * lpfc_cmpl_els_prli - Completion callback function for prli 2298 * @phba: pointer to lpfc hba data structure. 2299 * @cmdiocb: pointer to lpfc command iocb data structure. 2300 * @rspiocb: pointer to lpfc response iocb data structure. 2301 * 2302 * This routine is the completion callback function for a Process Login 2303 * (PRLI) ELS command. The PRLI response IOCB status is checked for error 2304 * status. If there is error status reported, PRLI retry shall be attempted 2305 * by invoking the lpfc_els_retry() routine. Otherwise, the state 2306 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this 2307 * ndlp to mark the PRLI completion. 2308 **/ 2309 static void 2310 lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2311 struct lpfc_iocbq *rspiocb) 2312 { 2313 struct lpfc_vport *vport = cmdiocb->vport; 2314 struct lpfc_nodelist *ndlp; 2315 char *mode; 2316 u32 ulp_status; 2317 u32 ulp_word4; 2318 bool release_node = false; 2319 2320 /* we pass cmdiocb to state machine which needs rspiocb as well */ 2321 cmdiocb->rsp_iocb = rspiocb; 2322 2323 ndlp = cmdiocb->ndlp; 2324 2325 ulp_status = get_job_ulpstatus(phba, rspiocb); 2326 ulp_word4 = get_job_word4(phba, rspiocb); 2327 2328 clear_bit(NLP_PRLI_SND, &ndlp->nlp_flag); 2329 2330 /* Driver supports multiple FC4 types. Counters matter. */ 2331 spin_lock_irq(&ndlp->lock); 2332 vport->fc_prli_sent--; 2333 ndlp->fc4_prli_sent--; 2334 spin_unlock_irq(&ndlp->lock); 2335 2336 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2337 "PRLI cmpl: status:x%x/x%x did:x%x", 2338 ulp_status, ulp_word4, 2339 ndlp->nlp_DID); 2340 2341 /* PRLI completes to NPort <nlp_DID> */ 2342 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 2343 "0103 PRLI completes to NPort x%06x " 2344 "Data: x%x x%x x%x x%x x%x\n", 2345 ndlp->nlp_DID, ulp_status, ulp_word4, 2346 vport->num_disc_nodes, ndlp->fc4_prli_sent, 2347 ndlp->fc4_xpt_flags); 2348 2349 /* Check to see if link went down during discovery */ 2350 if (lpfc_els_chk_latt(vport)) 2351 goto out; 2352 2353 if (ulp_status) { 2354 /* Check for retry */ 2355 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { 2356 /* ELS command is being retried */ 2357 goto out; 2358 } 2359 2360 /* If we don't send GFT_ID to Fabric, a PRLI error 2361 * could be expected. 2362 */ 2363 if (test_bit(FC_FABRIC, &vport->fc_flag) || 2364 vport->cfg_enable_fc4_type != LPFC_ENABLE_BOTH) 2365 mode = KERN_WARNING; 2366 else 2367 mode = KERN_INFO; 2368 2369 /* Warn PRLI status */ 2370 lpfc_printf_vlog(vport, mode, LOG_ELS, 2371 "2754 PRLI DID:%06X Status:x%x/x%x, " 2372 "data: x%x x%x x%lx\n", 2373 ndlp->nlp_DID, ulp_status, 2374 ulp_word4, ndlp->nlp_state, 2375 ndlp->fc4_prli_sent, ndlp->nlp_flag); 2376 2377 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ 2378 if (!lpfc_error_lost_link(vport, ulp_status, ulp_word4)) 2379 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2380 NLP_EVT_CMPL_PRLI); 2381 2382 /* The following condition catches an inflight transition 2383 * mismatch typically caused by an RSCN. Skip any 2384 * processing to allow recovery. 2385 */ 2386 if ((ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE && 2387 ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE) || 2388 (ndlp->nlp_state == NLP_STE_NPR_NODE && 2389 test_bit(NLP_DELAY_TMO, &ndlp->nlp_flag))) { 2390 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 2391 "2784 PRLI cmpl: Allow Node recovery " 2392 "DID x%06x nstate x%x nflag x%lx\n", 2393 ndlp->nlp_DID, ndlp->nlp_state, 2394 ndlp->nlp_flag); 2395 goto out; 2396 } 2397 2398 /* 2399 * For P2P topology, retain the node so that PLOGI can be 2400 * attempted on it again. 2401 */ 2402 if (test_bit(FC_PT2PT, &vport->fc_flag)) 2403 goto out; 2404 2405 /* As long as this node is not registered with the SCSI 2406 * or NVMe transport and no other PRLIs are outstanding, 2407 * it is no longer an active node. Otherwise devloss 2408 * handles the final cleanup. 2409 */ 2410 spin_lock_irq(&ndlp->lock); 2411 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) && 2412 !ndlp->fc4_prli_sent) { 2413 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2414 if (!test_bit(NLP_IN_DEV_LOSS, &ndlp->nlp_flag)) 2415 release_node = true; 2416 } 2417 spin_unlock_irq(&ndlp->lock); 2418 2419 if (release_node) 2420 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2421 NLP_EVT_DEVICE_RM); 2422 } else { 2423 /* Good status, call state machine. However, if another 2424 * PRLI is outstanding, don't call the state machine 2425 * because final disposition to Mapped or Unmapped is 2426 * completed there. 2427 */ 2428 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2429 NLP_EVT_CMPL_PRLI); 2430 } 2431 2432 out: 2433 lpfc_els_free_iocb(phba, cmdiocb); 2434 lpfc_nlp_put(ndlp); 2435 return; 2436 } 2437 2438 /** 2439 * lpfc_issue_els_prli - Issue a prli iocb command for a vport 2440 * @vport: pointer to a host virtual N_Port data structure. 2441 * @ndlp: pointer to a node-list data structure. 2442 * @retry: number of retries to the command IOCB. 2443 * 2444 * This routine issues a Process Login (PRLI) ELS command for the 2445 * @vport. The PRLI service parameters are set up in the payload of the 2446 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine 2447 * is put to the IOCB completion callback func field before invoking the 2448 * routine lpfc_sli_issue_iocb() to send out PRLI command. 2449 * 2450 * Note that the ndlp reference count will be incremented by 1 for holding the 2451 * ndlp and the reference to ndlp will be stored into the ndlp field of 2452 * the IOCB for the completion callback function to the PRLI ELS command. 2453 * 2454 * Return code 2455 * 0 - successfully issued prli iocb command for @vport 2456 * 1 - failed to issue prli iocb command for @vport 2457 **/ 2458 int 2459 lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2460 uint8_t retry) 2461 { 2462 int rc = 0; 2463 struct lpfc_hba *phba = vport->phba; 2464 PRLI *npr; 2465 struct lpfc_nvme_prli *npr_nvme; 2466 struct lpfc_iocbq *elsiocb; 2467 uint8_t *pcmd; 2468 uint16_t cmdsize; 2469 u32 local_nlp_type, elscmd; 2470 2471 /* 2472 * If we are in RSCN mode, the FC4 types supported from a 2473 * previous GFT_ID command may not be accurate. So, if we 2474 * are a NVME Initiator, always look for the possibility of 2475 * the remote NPort beng a NVME Target. 2476 */ 2477 if (phba->sli_rev == LPFC_SLI_REV4 && 2478 test_bit(FC_RSCN_MODE, &vport->fc_flag) && 2479 vport->nvmei_support) 2480 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 2481 local_nlp_type = ndlp->nlp_fc4_type; 2482 2483 /* This routine will issue 1 or 2 PRLIs, so zero all the ndlp 2484 * fields here before any of them can complete. 2485 */ 2486 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 2487 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 2488 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 2489 clear_bit(NLP_FIRSTBURST, &ndlp->nlp_flag); 2490 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2491 ndlp->nvme_fb_size = 0; 2492 2493 send_next_prli: 2494 if (local_nlp_type & NLP_FC4_FCP) { 2495 /* Payload is 4 + 16 = 20 x14 bytes. */ 2496 cmdsize = (sizeof(uint32_t) + sizeof(PRLI)); 2497 elscmd = ELS_CMD_PRLI; 2498 } else if (local_nlp_type & NLP_FC4_NVME) { 2499 /* Payload is 4 + 20 = 24 x18 bytes. */ 2500 cmdsize = (sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli)); 2501 elscmd = ELS_CMD_NVMEPRLI; 2502 } else { 2503 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2504 "3083 Unknown FC_TYPE x%x ndlp x%06x\n", 2505 ndlp->nlp_fc4_type, ndlp->nlp_DID); 2506 return 1; 2507 } 2508 2509 /* SLI3 ports don't support NVME. If this rport is a strict NVME 2510 * FC4 type, implicitly LOGO. 2511 */ 2512 if (phba->sli_rev == LPFC_SLI_REV3 && 2513 ndlp->nlp_fc4_type == NLP_FC4_NVME) { 2514 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2515 "3088 Rport fc4 type 0x%x not supported by SLI3 adapter\n", 2516 ndlp->nlp_type); 2517 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 2518 return 1; 2519 } 2520 2521 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 2522 ndlp->nlp_DID, elscmd); 2523 if (!elsiocb) 2524 return 1; 2525 2526 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 2527 2528 /* For PRLI request, remainder of payload is service parameters */ 2529 memset(pcmd, 0, cmdsize); 2530 2531 if (local_nlp_type & NLP_FC4_FCP) { 2532 /* Remainder of payload is FCP PRLI parameter page. 2533 * Note: this data structure is defined as 2534 * BE/LE in the structure definition so no 2535 * byte swap call is made. 2536 */ 2537 *((uint32_t *)(pcmd)) = ELS_CMD_PRLI; 2538 pcmd += sizeof(uint32_t); 2539 npr = (PRLI *)pcmd; 2540 2541 /* 2542 * If our firmware version is 3.20 or later, 2543 * set the following bits for FC-TAPE support. 2544 */ 2545 if (phba->vpd.rev.feaLevelHigh >= 0x02) { 2546 npr->ConfmComplAllowed = 1; 2547 npr->Retry = 1; 2548 npr->TaskRetryIdReq = 1; 2549 } 2550 npr->estabImagePair = 1; 2551 npr->readXferRdyDis = 1; 2552 if (vport->cfg_first_burst_size) 2553 npr->writeXferRdyDis = 1; 2554 2555 /* For FCP support */ 2556 npr->prliType = PRLI_FCP_TYPE; 2557 npr->initiatorFunc = 1; 2558 elsiocb->cmd_flag |= LPFC_PRLI_FCP_REQ; 2559 2560 /* Remove FCP type - processed. */ 2561 local_nlp_type &= ~NLP_FC4_FCP; 2562 } else if (local_nlp_type & NLP_FC4_NVME) { 2563 /* Remainder of payload is NVME PRLI parameter page. 2564 * This data structure is the newer definition that 2565 * uses bf macros so a byte swap is required. 2566 */ 2567 *((uint32_t *)(pcmd)) = ELS_CMD_NVMEPRLI; 2568 pcmd += sizeof(uint32_t); 2569 npr_nvme = (struct lpfc_nvme_prli *)pcmd; 2570 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE); 2571 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */ 2572 if (phba->nsler) { 2573 bf_set(prli_nsler, npr_nvme, 1); 2574 bf_set(prli_conf, npr_nvme, 1); 2575 } 2576 2577 /* Only initiators request first burst. */ 2578 if ((phba->cfg_nvme_enable_fb) && 2579 !phba->nvmet_support) 2580 bf_set(prli_fba, npr_nvme, 1); 2581 2582 if (phba->nvmet_support) { 2583 bf_set(prli_tgt, npr_nvme, 1); 2584 bf_set(prli_disc, npr_nvme, 1); 2585 } else { 2586 bf_set(prli_init, npr_nvme, 1); 2587 bf_set(prli_conf, npr_nvme, 1); 2588 } 2589 2590 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1); 2591 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4); 2592 elsiocb->cmd_flag |= LPFC_PRLI_NVME_REQ; 2593 2594 /* Remove NVME type - processed. */ 2595 local_nlp_type &= ~NLP_FC4_NVME; 2596 } 2597 2598 phba->fc_stat.elsXmitPRLI++; 2599 elsiocb->cmd_cmpl = lpfc_cmpl_els_prli; 2600 2601 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2602 "Issue PRLI: did:x%x refcnt %d", 2603 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 2604 elsiocb->ndlp = lpfc_nlp_get(ndlp); 2605 if (!elsiocb->ndlp) { 2606 lpfc_els_free_iocb(phba, elsiocb); 2607 return 1; 2608 } 2609 2610 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 2611 if (rc == IOCB_ERROR) { 2612 lpfc_els_free_iocb(phba, elsiocb); 2613 lpfc_nlp_put(ndlp); 2614 return 1; 2615 } 2616 2617 /* The vport counters are used for lpfc_scan_finished, but 2618 * the ndlp is used to track outstanding PRLIs for different 2619 * FC4 types. 2620 */ 2621 set_bit(NLP_PRLI_SND, &ndlp->nlp_flag); 2622 spin_lock_irq(&ndlp->lock); 2623 vport->fc_prli_sent++; 2624 ndlp->fc4_prli_sent++; 2625 spin_unlock_irq(&ndlp->lock); 2626 2627 /* The driver supports 2 FC4 types. Make sure 2628 * a PRLI is issued for all types before exiting. 2629 */ 2630 if (phba->sli_rev == LPFC_SLI_REV4 && 2631 local_nlp_type & (NLP_FC4_FCP | NLP_FC4_NVME)) 2632 goto send_next_prli; 2633 else 2634 return 0; 2635 } 2636 2637 /** 2638 * lpfc_rscn_disc - Perform rscn discovery for a vport 2639 * @vport: pointer to a host virtual N_Port data structure. 2640 * 2641 * This routine performs Registration State Change Notification (RSCN) 2642 * discovery for a @vport. If the @vport's node port recovery count is not 2643 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all 2644 * the nodes that need recovery. If none of the PLOGI were needed through 2645 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be 2646 * invoked to check and handle possible more RSCN came in during the period 2647 * of processing the current ones. 2648 **/ 2649 static void 2650 lpfc_rscn_disc(struct lpfc_vport *vport) 2651 { 2652 lpfc_can_disctmo(vport); 2653 2654 /* RSCN discovery */ 2655 /* go thru NPR nodes and issue ELS PLOGIs */ 2656 if (atomic_read(&vport->fc_npr_cnt)) 2657 if (lpfc_els_disc_plogi(vport)) 2658 return; 2659 2660 lpfc_end_rscn(vport); 2661 } 2662 2663 /** 2664 * lpfc_adisc_done - Complete the adisc phase of discovery 2665 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs. 2666 * 2667 * This function is called when the final ADISC is completed during discovery. 2668 * This function handles clearing link attention or issuing reg_vpi depending 2669 * on whether npiv is enabled. This function also kicks off the PLOGI phase of 2670 * discovery. 2671 * This function is called with no locks held. 2672 **/ 2673 static void 2674 lpfc_adisc_done(struct lpfc_vport *vport) 2675 { 2676 struct lpfc_hba *phba = vport->phba; 2677 2678 /* 2679 * For NPIV, cmpl_reg_vpi will set port_state to READY, 2680 * and continue discovery. 2681 */ 2682 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 2683 !test_bit(FC_RSCN_MODE, &vport->fc_flag) && 2684 (phba->sli_rev < LPFC_SLI_REV4)) { 2685 2686 /* 2687 * If link is down, clear_la and reg_vpi will be done after 2688 * flogi following a link up event 2689 */ 2690 if (!lpfc_is_link_up(phba)) 2691 return; 2692 2693 /* The ADISCs are complete. Doesn't matter if they 2694 * succeeded or failed because the ADISC completion 2695 * routine guarantees to call the state machine and 2696 * the RPI is either unregistered (failed ADISC response) 2697 * or the RPI is still valid and the node is marked 2698 * mapped for a target. The exchanges should be in the 2699 * correct state. This code is specific to SLI3. 2700 */ 2701 lpfc_issue_clear_la(phba, vport); 2702 lpfc_issue_reg_vpi(phba, vport); 2703 return; 2704 } 2705 /* 2706 * For SLI2, we need to set port_state to READY 2707 * and continue discovery. 2708 */ 2709 if (vport->port_state < LPFC_VPORT_READY) { 2710 /* If we get here, there is nothing to ADISC */ 2711 lpfc_issue_clear_la(phba, vport); 2712 if (!test_bit(FC_ABORT_DISCOVERY, &vport->fc_flag)) { 2713 vport->num_disc_nodes = 0; 2714 /* go thru NPR list, issue ELS PLOGIs */ 2715 if (atomic_read(&vport->fc_npr_cnt)) 2716 lpfc_els_disc_plogi(vport); 2717 if (!vport->num_disc_nodes) { 2718 clear_bit(FC_NDISC_ACTIVE, &vport->fc_flag); 2719 lpfc_can_disctmo(vport); 2720 lpfc_end_rscn(vport); 2721 } 2722 } 2723 vport->port_state = LPFC_VPORT_READY; 2724 } else 2725 lpfc_rscn_disc(vport); 2726 } 2727 2728 /** 2729 * lpfc_more_adisc - Issue more adisc as needed 2730 * @vport: pointer to a host virtual N_Port data structure. 2731 * 2732 * This routine determines whether there are more ndlps on a @vport 2733 * node list need to have Address Discover (ADISC) issued. If so, it will 2734 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's 2735 * remaining nodes which need to have ADISC sent. 2736 **/ 2737 void 2738 lpfc_more_adisc(struct lpfc_vport *vport) 2739 { 2740 if (vport->num_disc_nodes) 2741 vport->num_disc_nodes--; 2742 /* Continue discovery with <num_disc_nodes> ADISCs to go */ 2743 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2744 "0210 Continue discovery with %d ADISCs to go " 2745 "Data: x%x x%lx x%x\n", 2746 vport->num_disc_nodes, 2747 atomic_read(&vport->fc_adisc_cnt), 2748 vport->fc_flag, vport->port_state); 2749 /* Check to see if there are more ADISCs to be sent */ 2750 if (test_bit(FC_NLP_MORE, &vport->fc_flag)) { 2751 lpfc_set_disctmo(vport); 2752 /* go thru NPR nodes and issue any remaining ELS ADISCs */ 2753 lpfc_els_disc_adisc(vport); 2754 } 2755 if (!vport->num_disc_nodes) 2756 lpfc_adisc_done(vport); 2757 return; 2758 } 2759 2760 /** 2761 * lpfc_cmpl_els_adisc - Completion callback function for adisc 2762 * @phba: pointer to lpfc hba data structure. 2763 * @cmdiocb: pointer to lpfc command iocb data structure. 2764 * @rspiocb: pointer to lpfc response iocb data structure. 2765 * 2766 * This routine is the completion function for issuing the Address Discover 2767 * (ADISC) command. It first checks to see whether link went down during 2768 * the discovery process. If so, the node will be marked as node port 2769 * recovery for issuing discover IOCB by the link attention handler and 2770 * exit. Otherwise, the response status is checked. If error was reported 2771 * in the response status, the ADISC command shall be retried by invoking 2772 * the lpfc_els_retry() routine. Otherwise, if no error was reported in 2773 * the response status, the state machine is invoked to set transition 2774 * with respect to NLP_EVT_CMPL_ADISC event. 2775 **/ 2776 static void 2777 lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2778 struct lpfc_iocbq *rspiocb) 2779 { 2780 struct lpfc_vport *vport = cmdiocb->vport; 2781 IOCB_t *irsp; 2782 struct lpfc_nodelist *ndlp; 2783 bool disc; 2784 u32 ulp_status, ulp_word4, tmo, iotag; 2785 bool release_node = false; 2786 2787 /* we pass cmdiocb to state machine which needs rspiocb as well */ 2788 cmdiocb->rsp_iocb = rspiocb; 2789 2790 ndlp = cmdiocb->ndlp; 2791 2792 ulp_status = get_job_ulpstatus(phba, rspiocb); 2793 ulp_word4 = get_job_word4(phba, rspiocb); 2794 2795 if (phba->sli_rev == LPFC_SLI_REV4) { 2796 tmo = get_wqe_tmo(cmdiocb); 2797 iotag = get_wqe_reqtag(cmdiocb); 2798 } else { 2799 irsp = &rspiocb->iocb; 2800 tmo = irsp->ulpTimeout; 2801 iotag = irsp->ulpIoTag; 2802 } 2803 2804 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2805 "ADISC cmpl: status:x%x/x%x did:x%x", 2806 ulp_status, ulp_word4, 2807 ndlp->nlp_DID); 2808 2809 /* Since ndlp can be freed in the disc state machine, note if this node 2810 * is being used during discovery. 2811 */ 2812 disc = test_and_clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2813 clear_bit(NLP_ADISC_SND, &ndlp->nlp_flag); 2814 /* ADISC completes to NPort <nlp_DID> */ 2815 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 2816 "0104 ADISC completes to NPort x%x " 2817 "IoTag x%x Data: x%x x%x x%x x%x x%x\n", 2818 ndlp->nlp_DID, iotag, 2819 ulp_status, ulp_word4, 2820 tmo, disc, vport->num_disc_nodes); 2821 2822 /* Check to see if link went down during discovery */ 2823 if (lpfc_els_chk_latt(vport)) { 2824 set_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2825 goto out; 2826 } 2827 2828 if (ulp_status) { 2829 /* Check for retry */ 2830 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { 2831 /* ELS command is being retried */ 2832 if (disc) { 2833 set_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2834 lpfc_set_disctmo(vport); 2835 } 2836 goto out; 2837 } 2838 /* Warn ADISC status */ 2839 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 2840 "2755 ADISC DID:%06X Status:x%x/x%x\n", 2841 ndlp->nlp_DID, ulp_status, 2842 ulp_word4); 2843 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2844 NLP_EVT_CMPL_ADISC); 2845 2846 /* As long as this node is not registered with the SCSI or NVMe 2847 * transport, it is no longer an active node. Otherwise 2848 * devloss handles the final cleanup. 2849 */ 2850 spin_lock_irq(&ndlp->lock); 2851 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { 2852 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 2853 if (!test_bit(NLP_IN_DEV_LOSS, &ndlp->nlp_flag)) 2854 release_node = true; 2855 } 2856 spin_unlock_irq(&ndlp->lock); 2857 2858 if (release_node) 2859 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2860 NLP_EVT_DEVICE_RM); 2861 } else 2862 /* Good status, call state machine */ 2863 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 2864 NLP_EVT_CMPL_ADISC); 2865 2866 /* Check to see if there are more ADISCs to be sent */ 2867 if (disc && vport->num_disc_nodes) 2868 lpfc_more_adisc(vport); 2869 out: 2870 lpfc_els_free_iocb(phba, cmdiocb); 2871 lpfc_nlp_put(ndlp); 2872 return; 2873 } 2874 2875 /** 2876 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport 2877 * @vport: pointer to a virtual N_Port data structure. 2878 * @ndlp: pointer to a node-list data structure. 2879 * @retry: number of retries to the command IOCB. 2880 * 2881 * This routine issues an Address Discover (ADISC) for an @ndlp on a 2882 * @vport. It prepares the payload of the ADISC ELS command, updates the 2883 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine 2884 * to issue the ADISC ELS command. 2885 * 2886 * Note that the ndlp reference count will be incremented by 1 for holding the 2887 * ndlp and the reference to ndlp will be stored into the ndlp field of 2888 * the IOCB for the completion callback function to the ADISC ELS command. 2889 * 2890 * Return code 2891 * 0 - successfully issued adisc 2892 * 1 - failed to issue adisc 2893 **/ 2894 int 2895 lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2896 uint8_t retry) 2897 { 2898 int rc = 0; 2899 struct lpfc_hba *phba = vport->phba; 2900 ADISC *ap; 2901 struct lpfc_iocbq *elsiocb; 2902 uint8_t *pcmd; 2903 uint16_t cmdsize; 2904 2905 cmdsize = (sizeof(uint32_t) + sizeof(ADISC)); 2906 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 2907 ndlp->nlp_DID, ELS_CMD_ADISC); 2908 if (!elsiocb) 2909 return 1; 2910 2911 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 2912 2913 /* For ADISC request, remainder of payload is service parameters */ 2914 *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; 2915 pcmd += sizeof(uint32_t); 2916 2917 /* Fill in ADISC payload */ 2918 ap = (ADISC *) pcmd; 2919 ap->hardAL_PA = phba->fc_pref_ALPA; 2920 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); 2921 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 2922 ap->DID = be32_to_cpu(vport->fc_myDID); 2923 2924 phba->fc_stat.elsXmitADISC++; 2925 elsiocb->cmd_cmpl = lpfc_cmpl_els_adisc; 2926 set_bit(NLP_ADISC_SND, &ndlp->nlp_flag); 2927 elsiocb->ndlp = lpfc_nlp_get(ndlp); 2928 if (!elsiocb->ndlp) { 2929 lpfc_els_free_iocb(phba, elsiocb); 2930 goto err; 2931 } 2932 2933 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2934 "Issue ADISC: did:x%x refcnt %d", 2935 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 2936 2937 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 2938 if (rc == IOCB_ERROR) { 2939 lpfc_els_free_iocb(phba, elsiocb); 2940 lpfc_nlp_put(ndlp); 2941 goto err; 2942 } 2943 2944 return 0; 2945 2946 err: 2947 clear_bit(NLP_ADISC_SND, &ndlp->nlp_flag); 2948 return 1; 2949 } 2950 2951 /** 2952 * lpfc_cmpl_els_logo - Completion callback function for logo 2953 * @phba: pointer to lpfc hba data structure. 2954 * @cmdiocb: pointer to lpfc command iocb data structure. 2955 * @rspiocb: pointer to lpfc response iocb data structure. 2956 * 2957 * This routine is the completion function for issuing the ELS Logout (LOGO) 2958 * command. If no error status was reported from the LOGO response, the 2959 * state machine of the associated ndlp shall be invoked for transition with 2960 * respect to NLP_EVT_CMPL_LOGO event. 2961 **/ 2962 static void 2963 lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2964 struct lpfc_iocbq *rspiocb) 2965 { 2966 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 2967 struct lpfc_vport *vport = ndlp->vport; 2968 IOCB_t *irsp; 2969 uint32_t skip_recovery = 0; 2970 int wake_up_waiter = 0; 2971 u32 ulp_status; 2972 u32 ulp_word4; 2973 u32 tmo, iotag; 2974 2975 /* we pass cmdiocb to state machine which needs rspiocb as well */ 2976 cmdiocb->rsp_iocb = rspiocb; 2977 2978 ulp_status = get_job_ulpstatus(phba, rspiocb); 2979 ulp_word4 = get_job_word4(phba, rspiocb); 2980 2981 if (phba->sli_rev == LPFC_SLI_REV4) { 2982 tmo = get_wqe_tmo(cmdiocb); 2983 iotag = get_wqe_reqtag(cmdiocb); 2984 } else { 2985 irsp = &rspiocb->iocb; 2986 tmo = irsp->ulpTimeout; 2987 iotag = irsp->ulpIoTag; 2988 } 2989 2990 clear_bit(NLP_LOGO_SND, &ndlp->nlp_flag); 2991 spin_lock_irq(&ndlp->lock); 2992 if (ndlp->save_flags & NLP_WAIT_FOR_LOGO) { 2993 wake_up_waiter = 1; 2994 ndlp->save_flags &= ~NLP_WAIT_FOR_LOGO; 2995 } 2996 spin_unlock_irq(&ndlp->lock); 2997 2998 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2999 "LOGO cmpl: status:x%x/x%x did:x%x", 3000 ulp_status, ulp_word4, 3001 ndlp->nlp_DID); 3002 3003 /* LOGO completes to NPort <nlp_DID> */ 3004 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 3005 "0105 LOGO completes to NPort x%x " 3006 "IoTag x%x refcnt %d nflags x%lx xflags x%x " 3007 "Data: x%x x%x x%x x%x\n", 3008 ndlp->nlp_DID, iotag, 3009 kref_read(&ndlp->kref), ndlp->nlp_flag, 3010 ndlp->fc4_xpt_flags, ulp_status, ulp_word4, 3011 tmo, vport->num_disc_nodes); 3012 3013 if (lpfc_els_chk_latt(vport)) { 3014 skip_recovery = 1; 3015 goto out; 3016 } 3017 3018 /* The LOGO will not be retried on failure. A LOGO was 3019 * issued to the remote rport and a ACC or RJT or no Answer are 3020 * all acceptable. Note the failure and move forward with 3021 * discovery. The PLOGI will retry. 3022 */ 3023 if (ulp_status) { 3024 /* Warn LOGO status */ 3025 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 3026 "2756 LOGO, No Retry DID:%06X " 3027 "Status:x%x/x%x\n", 3028 ndlp->nlp_DID, ulp_status, 3029 ulp_word4); 3030 3031 if (lpfc_error_lost_link(vport, ulp_status, ulp_word4)) 3032 skip_recovery = 1; 3033 } 3034 3035 /* Call state machine. This will unregister the rpi if needed. */ 3036 lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO); 3037 3038 if (skip_recovery) 3039 goto out; 3040 3041 /* The driver sets this flag for an NPIV instance that doesn't want to 3042 * log into the remote port. 3043 */ 3044 if (test_bit(NLP_TARGET_REMOVE, &ndlp->nlp_flag)) { 3045 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 3046 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 3047 NLP_EVT_DEVICE_RM); 3048 goto out_rsrc_free; 3049 } 3050 3051 out: 3052 /* At this point, the LOGO processing is complete. NOTE: For a 3053 * pt2pt topology, we are assuming the NPortID will only change 3054 * on link up processing. For a LOGO / PLOGI initiated by the 3055 * Initiator, we are assuming the NPortID is not going to change. 3056 */ 3057 3058 if (wake_up_waiter && ndlp->logo_waitq) 3059 wake_up(ndlp->logo_waitq); 3060 /* 3061 * If the node is a target, the handling attempts to recover the port. 3062 * For any other port type, the rpi is unregistered as an implicit 3063 * LOGO. 3064 */ 3065 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) && 3066 skip_recovery == 0) { 3067 lpfc_cancel_retry_delay_tmo(vport, ndlp); 3068 set_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 3069 3070 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 3071 "3187 LOGO completes to NPort x%x: Start " 3072 "Recovery Data: x%x x%x x%x x%x\n", 3073 ndlp->nlp_DID, ulp_status, 3074 ulp_word4, tmo, 3075 vport->num_disc_nodes); 3076 3077 lpfc_els_free_iocb(phba, cmdiocb); 3078 lpfc_nlp_put(ndlp); 3079 3080 lpfc_disc_start(vport); 3081 return; 3082 } 3083 3084 /* Cleanup path for failed REG_RPI handling. If REG_RPI fails, the 3085 * driver sends a LOGO to the rport to cleanup. For fabric and 3086 * initiator ports cleanup the node as long as it the node is not 3087 * register with the transport. 3088 */ 3089 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { 3090 clear_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 3091 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 3092 NLP_EVT_DEVICE_RM); 3093 } 3094 out_rsrc_free: 3095 /* Driver is done with the I/O. */ 3096 lpfc_els_free_iocb(phba, cmdiocb); 3097 lpfc_nlp_put(ndlp); 3098 } 3099 3100 /** 3101 * lpfc_issue_els_logo - Issue a logo to an node on a vport 3102 * @vport: pointer to a virtual N_Port data structure. 3103 * @ndlp: pointer to a node-list data structure. 3104 * @retry: number of retries to the command IOCB. 3105 * 3106 * This routine constructs and issues an ELS Logout (LOGO) iocb command 3107 * to a remote node, referred by an @ndlp on a @vport. It constructs the 3108 * payload of the IOCB, properly sets up the @ndlp state, and invokes the 3109 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command. 3110 * 3111 * Note that the ndlp reference count will be incremented by 1 for holding the 3112 * ndlp and the reference to ndlp will be stored into the ndlp field of 3113 * the IOCB for the completion callback function to the LOGO ELS command. 3114 * 3115 * Callers of this routine are expected to unregister the RPI first 3116 * 3117 * Return code 3118 * 0 - successfully issued logo 3119 * 1 - failed to issue logo 3120 **/ 3121 int 3122 lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3123 uint8_t retry) 3124 { 3125 struct lpfc_hba *phba = vport->phba; 3126 struct lpfc_iocbq *elsiocb; 3127 uint8_t *pcmd; 3128 uint16_t cmdsize; 3129 int rc; 3130 3131 if (test_bit(NLP_LOGO_SND, &ndlp->nlp_flag)) 3132 return 0; 3133 3134 cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name); 3135 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3136 ndlp->nlp_DID, ELS_CMD_LOGO); 3137 if (!elsiocb) 3138 return 1; 3139 3140 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 3141 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; 3142 pcmd += sizeof(uint32_t); 3143 3144 /* Fill in LOGO payload */ 3145 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); 3146 pcmd += sizeof(uint32_t); 3147 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); 3148 3149 phba->fc_stat.elsXmitLOGO++; 3150 elsiocb->cmd_cmpl = lpfc_cmpl_els_logo; 3151 set_bit(NLP_LOGO_SND, &ndlp->nlp_flag); 3152 clear_bit(NLP_ISSUE_LOGO, &ndlp->nlp_flag); 3153 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3154 if (!elsiocb->ndlp) { 3155 lpfc_els_free_iocb(phba, elsiocb); 3156 goto err; 3157 } 3158 3159 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3160 "Issue LOGO: did:x%x refcnt %d", 3161 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 3162 3163 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3164 if (rc == IOCB_ERROR) { 3165 lpfc_els_free_iocb(phba, elsiocb); 3166 lpfc_nlp_put(ndlp); 3167 goto err; 3168 } 3169 3170 spin_lock_irq(&ndlp->lock); 3171 ndlp->nlp_prev_state = ndlp->nlp_state; 3172 spin_unlock_irq(&ndlp->lock); 3173 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); 3174 return 0; 3175 3176 err: 3177 clear_bit(NLP_LOGO_SND, &ndlp->nlp_flag); 3178 return 1; 3179 } 3180 3181 /** 3182 * lpfc_cmpl_els_cmd - Completion callback function for generic els command 3183 * @phba: pointer to lpfc hba data structure. 3184 * @cmdiocb: pointer to lpfc command iocb data structure. 3185 * @rspiocb: pointer to lpfc response iocb data structure. 3186 * 3187 * This routine is a generic completion callback function for ELS commands. 3188 * Specifically, it is the callback function which does not need to perform 3189 * any command specific operations. It is currently used by the ELS command 3190 * issuing routines for RSCN, lpfc_issue_els_rscn, and the ELS Fibre Channel 3191 * Address Resolution Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). 3192 * Other than certain debug loggings, this callback function simply invokes the 3193 * lpfc_els_chk_latt() routine to check whether link went down during the 3194 * discovery process. 3195 **/ 3196 static void 3197 lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 3198 struct lpfc_iocbq *rspiocb) 3199 { 3200 struct lpfc_vport *vport = cmdiocb->vport; 3201 struct lpfc_nodelist *free_ndlp; 3202 IOCB_t *irsp; 3203 u32 ulp_status, ulp_word4, tmo, did, iotag; 3204 3205 ulp_status = get_job_ulpstatus(phba, rspiocb); 3206 ulp_word4 = get_job_word4(phba, rspiocb); 3207 did = get_job_els_rsp64_did(phba, cmdiocb); 3208 3209 if (phba->sli_rev == LPFC_SLI_REV4) { 3210 tmo = get_wqe_tmo(cmdiocb); 3211 iotag = get_wqe_reqtag(cmdiocb); 3212 } else { 3213 irsp = &rspiocb->iocb; 3214 tmo = irsp->ulpTimeout; 3215 iotag = irsp->ulpIoTag; 3216 } 3217 3218 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3219 "ELS cmd cmpl: status:x%x/x%x did:x%x", 3220 ulp_status, ulp_word4, did); 3221 3222 /* ELS cmd tag <ulpIoTag> completes */ 3223 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 3224 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n", 3225 iotag, ulp_status, ulp_word4, tmo); 3226 3227 /* Check to see if link went down during discovery */ 3228 lpfc_els_chk_latt(vport); 3229 3230 free_ndlp = cmdiocb->ndlp; 3231 3232 lpfc_els_free_iocb(phba, cmdiocb); 3233 lpfc_nlp_put(free_ndlp); 3234 } 3235 3236 /** 3237 * lpfc_reg_fab_ctrl_node - RPI register the fabric controller node. 3238 * @vport: pointer to lpfc_vport data structure. 3239 * @fc_ndlp: pointer to the fabric controller (0xfffffd) node. 3240 * 3241 * This routine registers the rpi assigned to the fabric controller 3242 * NPort_ID (0xfffffd) with the port and moves the node to UNMAPPED 3243 * state triggering a registration with the SCSI transport. 3244 * 3245 * This routine is single out because the fabric controller node 3246 * does not receive a PLOGI. This routine is consumed by the 3247 * SCR and RDF ELS commands. Callers are expected to qualify 3248 * with SLI4 first. 3249 **/ 3250 static int 3251 lpfc_reg_fab_ctrl_node(struct lpfc_vport *vport, struct lpfc_nodelist *fc_ndlp) 3252 { 3253 int rc; 3254 struct lpfc_hba *phba = vport->phba; 3255 struct lpfc_nodelist *ns_ndlp; 3256 LPFC_MBOXQ_t *mbox; 3257 3258 if (test_bit(NLP_RPI_REGISTERED, &fc_ndlp->nlp_flag)) 3259 return 0; 3260 3261 ns_ndlp = lpfc_findnode_did(vport, NameServer_DID); 3262 if (!ns_ndlp) 3263 return -ENODEV; 3264 3265 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3266 "0935 %s: Reg FC RPI x%x on FC DID x%x NSSte: x%x\n", 3267 __func__, fc_ndlp->nlp_rpi, fc_ndlp->nlp_DID, 3268 ns_ndlp->nlp_state); 3269 if (ns_ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 3270 return -ENODEV; 3271 3272 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3273 if (!mbox) { 3274 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3275 "0936 %s: no memory for reg_login " 3276 "Data: x%x x%x x%lx x%x\n", __func__, 3277 fc_ndlp->nlp_DID, fc_ndlp->nlp_state, 3278 fc_ndlp->nlp_flag, fc_ndlp->nlp_rpi); 3279 return -ENOMEM; 3280 } 3281 rc = lpfc_reg_rpi(phba, vport->vpi, fc_ndlp->nlp_DID, 3282 (u8 *)&vport->fc_sparam, mbox, fc_ndlp->nlp_rpi); 3283 if (rc) { 3284 rc = -EACCES; 3285 goto out; 3286 } 3287 3288 set_bit(NLP_REG_LOGIN_SEND, &fc_ndlp->nlp_flag); 3289 mbox->mbox_cmpl = lpfc_mbx_cmpl_fc_reg_login; 3290 mbox->ctx_ndlp = lpfc_nlp_get(fc_ndlp); 3291 if (!mbox->ctx_ndlp) { 3292 rc = -ENOMEM; 3293 goto out; 3294 } 3295 3296 mbox->vport = vport; 3297 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3298 if (rc == MBX_NOT_FINISHED) { 3299 rc = -ENODEV; 3300 lpfc_nlp_put(fc_ndlp); 3301 goto out; 3302 } 3303 /* Success path. Exit. */ 3304 lpfc_nlp_set_state(vport, fc_ndlp, 3305 NLP_STE_REG_LOGIN_ISSUE); 3306 return 0; 3307 3308 out: 3309 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 3310 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3311 "0938 %s: failed to format reg_login " 3312 "Data: x%x x%x x%lx x%x\n", __func__, 3313 fc_ndlp->nlp_DID, fc_ndlp->nlp_state, 3314 fc_ndlp->nlp_flag, fc_ndlp->nlp_rpi); 3315 return rc; 3316 } 3317 3318 /** 3319 * lpfc_cmpl_els_disc_cmd - Completion callback function for Discovery ELS cmd 3320 * @phba: pointer to lpfc hba data structure. 3321 * @cmdiocb: pointer to lpfc command iocb data structure. 3322 * @rspiocb: pointer to lpfc response iocb data structure. 3323 * 3324 * This routine is a generic completion callback function for Discovery ELS cmd. 3325 * Currently used by the ELS command issuing routines for the ELS State Change 3326 * Request (SCR), lpfc_issue_els_scr() and the ELS RDF, lpfc_issue_els_rdf(). 3327 * These commands will be retried once only for ELS timeout errors. 3328 **/ 3329 static void 3330 lpfc_cmpl_els_disc_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 3331 struct lpfc_iocbq *rspiocb) 3332 { 3333 struct lpfc_vport *vport = cmdiocb->vport; 3334 IOCB_t *irsp; 3335 struct lpfc_els_rdf_rsp *prdf; 3336 struct lpfc_dmabuf *pcmd, *prsp; 3337 u32 *pdata; 3338 u32 cmd; 3339 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 3340 u32 ulp_status, ulp_word4, tmo, did, iotag; 3341 3342 ulp_status = get_job_ulpstatus(phba, rspiocb); 3343 ulp_word4 = get_job_word4(phba, rspiocb); 3344 did = get_job_els_rsp64_did(phba, cmdiocb); 3345 3346 if (phba->sli_rev == LPFC_SLI_REV4) { 3347 tmo = get_wqe_tmo(cmdiocb); 3348 iotag = get_wqe_reqtag(cmdiocb); 3349 } else { 3350 irsp = &rspiocb->iocb; 3351 tmo = irsp->ulpTimeout; 3352 iotag = irsp->ulpIoTag; 3353 } 3354 3355 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3356 "ELS cmd cmpl: status:x%x/x%x did:x%x", 3357 ulp_status, ulp_word4, did); 3358 3359 /* ELS cmd tag <ulpIoTag> completes */ 3360 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 3361 "0217 ELS cmd tag x%x completes Data: x%x x%x x%x x%x\n", 3362 iotag, ulp_status, ulp_word4, tmo, cmdiocb->retry); 3363 3364 pcmd = cmdiocb->cmd_dmabuf; 3365 if (!pcmd) 3366 goto out; 3367 3368 pdata = (u32 *)pcmd->virt; 3369 if (!pdata) 3370 goto out; 3371 cmd = *pdata; 3372 3373 /* Only 1 retry for ELS Timeout only */ 3374 if (ulp_status == IOSTAT_LOCAL_REJECT && 3375 ((ulp_word4 & IOERR_PARAM_MASK) == 3376 IOERR_SEQUENCE_TIMEOUT)) { 3377 cmdiocb->retry++; 3378 if (cmdiocb->retry <= 1) { 3379 switch (cmd) { 3380 case ELS_CMD_SCR: 3381 lpfc_issue_els_scr(vport, cmdiocb->retry); 3382 break; 3383 case ELS_CMD_EDC: 3384 lpfc_issue_els_edc(vport, cmdiocb->retry); 3385 break; 3386 case ELS_CMD_RDF: 3387 lpfc_issue_els_rdf(vport, cmdiocb->retry); 3388 break; 3389 } 3390 goto out; 3391 } 3392 phba->fc_stat.elsRetryExceeded++; 3393 } 3394 if (cmd == ELS_CMD_EDC) { 3395 /* must be called before checking uplStatus and returning */ 3396 lpfc_cmpl_els_edc(phba, cmdiocb, rspiocb); 3397 return; 3398 } 3399 if (ulp_status) { 3400 /* ELS discovery cmd completes with error */ 3401 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS | LOG_CGN_MGMT, 3402 "4203 ELS cmd x%x error: x%x x%X\n", cmd, 3403 ulp_status, ulp_word4); 3404 goto out; 3405 } 3406 3407 /* The RDF response doesn't have any impact on the running driver 3408 * but the notification descriptors are dumped here for support. 3409 */ 3410 if (cmd == ELS_CMD_RDF) { 3411 int i; 3412 3413 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 3414 if (!prsp) 3415 goto out; 3416 3417 prdf = (struct lpfc_els_rdf_rsp *)prsp->virt; 3418 if (!prdf) 3419 goto out; 3420 if (!lpfc_is_els_acc_rsp(prsp)) 3421 goto out; 3422 3423 for (i = 0; i < ELS_RDF_REG_TAG_CNT && 3424 i < be32_to_cpu(prdf->reg_d1.reg_desc.count); i++) 3425 lpfc_printf_vlog(vport, KERN_INFO, 3426 LOG_ELS | LOG_CGN_MGMT, 3427 "4677 Fabric RDF Notification Grant " 3428 "Data: 0x%08x Reg: %x %x\n", 3429 be32_to_cpu( 3430 prdf->reg_d1.desc_tags[i]), 3431 phba->cgn_reg_signal, 3432 phba->cgn_reg_fpin); 3433 } 3434 3435 out: 3436 /* Check to see if link went down during discovery */ 3437 lpfc_els_chk_latt(vport); 3438 lpfc_els_free_iocb(phba, cmdiocb); 3439 lpfc_nlp_put(ndlp); 3440 return; 3441 } 3442 3443 /** 3444 * lpfc_issue_els_scr - Issue a scr to an node on a vport 3445 * @vport: pointer to a host virtual N_Port data structure. 3446 * @retry: retry counter for the command IOCB. 3447 * 3448 * This routine issues a State Change Request (SCR) to a fabric node 3449 * on a @vport. The remote node is Fabric Controller (0xfffffd). It 3450 * first search the @vport node list to find the matching ndlp. If no such 3451 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An 3452 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb() 3453 * routine is invoked to send the SCR IOCB. 3454 * 3455 * Note that the ndlp reference count will be incremented by 1 for holding the 3456 * ndlp and the reference to ndlp will be stored into the ndlp field of 3457 * the IOCB for the completion callback function to the SCR ELS command. 3458 * 3459 * Return code 3460 * 0 - Successfully issued scr command 3461 * 1 - Failed to issue scr command 3462 **/ 3463 int 3464 lpfc_issue_els_scr(struct lpfc_vport *vport, uint8_t retry) 3465 { 3466 int rc = 0; 3467 struct lpfc_hba *phba = vport->phba; 3468 struct lpfc_iocbq *elsiocb; 3469 uint8_t *pcmd; 3470 uint16_t cmdsize; 3471 struct lpfc_nodelist *ndlp; 3472 3473 cmdsize = (sizeof(uint32_t) + sizeof(SCR)); 3474 3475 ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID); 3476 if (!ndlp) { 3477 ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID); 3478 if (!ndlp) 3479 return 1; 3480 lpfc_enqueue_node(vport, ndlp); 3481 } 3482 3483 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3484 ndlp->nlp_DID, ELS_CMD_SCR); 3485 if (!elsiocb) 3486 return 1; 3487 3488 if (phba->sli_rev == LPFC_SLI_REV4) { 3489 rc = lpfc_reg_fab_ctrl_node(vport, ndlp); 3490 if (rc) { 3491 lpfc_els_free_iocb(phba, elsiocb); 3492 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3493 "0937 %s: Failed to reg fc node, rc %d\n", 3494 __func__, rc); 3495 return 1; 3496 } 3497 } 3498 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 3499 3500 *((uint32_t *) (pcmd)) = ELS_CMD_SCR; 3501 pcmd += sizeof(uint32_t); 3502 3503 /* For SCR, remainder of payload is SCR parameter page */ 3504 memset(pcmd, 0, sizeof(SCR)); 3505 ((SCR *) pcmd)->Function = SCR_FUNC_FULL; 3506 3507 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3508 "Issue SCR: did:x%x", 3509 ndlp->nlp_DID, 0, 0); 3510 3511 phba->fc_stat.elsXmitSCR++; 3512 elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd; 3513 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3514 if (!elsiocb->ndlp) { 3515 lpfc_els_free_iocb(phba, elsiocb); 3516 return 1; 3517 } 3518 3519 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3520 "Issue SCR: did:x%x refcnt %d", 3521 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 3522 3523 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3524 if (rc == IOCB_ERROR) { 3525 lpfc_els_free_iocb(phba, elsiocb); 3526 lpfc_nlp_put(ndlp); 3527 return 1; 3528 } 3529 3530 return 0; 3531 } 3532 3533 /** 3534 * lpfc_issue_els_rscn - Issue an RSCN to the Fabric Controller (Fabric) 3535 * or the other nport (pt2pt). 3536 * @vport: pointer to a host virtual N_Port data structure. 3537 * @retry: number of retries to the command IOCB. 3538 * 3539 * This routine issues a RSCN to the Fabric Controller (DID 0xFFFFFD) 3540 * when connected to a fabric, or to the remote port when connected 3541 * in point-to-point mode. When sent to the Fabric Controller, it will 3542 * replay the RSCN to registered recipients. 3543 * 3544 * Note that the ndlp reference count will be incremented by 1 for holding the 3545 * ndlp and the reference to ndlp will be stored into the ndlp field of 3546 * the IOCB for the completion callback function to the RSCN ELS command. 3547 * 3548 * Return code 3549 * 0 - Successfully issued RSCN command 3550 * 1 - Failed to issue RSCN command 3551 **/ 3552 int 3553 lpfc_issue_els_rscn(struct lpfc_vport *vport, uint8_t retry) 3554 { 3555 int rc = 0; 3556 struct lpfc_hba *phba = vport->phba; 3557 struct lpfc_iocbq *elsiocb; 3558 struct lpfc_nodelist *ndlp; 3559 struct { 3560 struct fc_els_rscn rscn; 3561 struct fc_els_rscn_page portid; 3562 } *event; 3563 uint32_t nportid; 3564 uint16_t cmdsize = sizeof(*event); 3565 3566 /* Not supported for private loop */ 3567 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 3568 !test_bit(FC_PUBLIC_LOOP, &vport->fc_flag)) 3569 return 1; 3570 3571 if (test_bit(FC_PT2PT, &vport->fc_flag)) { 3572 /* find any mapped nport - that would be the other nport */ 3573 ndlp = lpfc_findnode_mapped(vport); 3574 if (!ndlp) 3575 return 1; 3576 } else { 3577 nportid = FC_FID_FCTRL; 3578 /* find the fabric controller node */ 3579 ndlp = lpfc_findnode_did(vport, nportid); 3580 if (!ndlp) { 3581 /* if one didn't exist, make one */ 3582 ndlp = lpfc_nlp_init(vport, nportid); 3583 if (!ndlp) 3584 return 1; 3585 lpfc_enqueue_node(vport, ndlp); 3586 } 3587 } 3588 3589 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3590 ndlp->nlp_DID, ELS_CMD_RSCN_XMT); 3591 3592 if (!elsiocb) 3593 return 1; 3594 3595 event = elsiocb->cmd_dmabuf->virt; 3596 3597 event->rscn.rscn_cmd = ELS_RSCN; 3598 event->rscn.rscn_page_len = sizeof(struct fc_els_rscn_page); 3599 event->rscn.rscn_plen = cpu_to_be16(cmdsize); 3600 3601 nportid = vport->fc_myDID; 3602 /* appears that page flags must be 0 for fabric to broadcast RSCN */ 3603 event->portid.rscn_page_flags = 0; 3604 event->portid.rscn_fid[0] = (nportid & 0x00FF0000) >> 16; 3605 event->portid.rscn_fid[1] = (nportid & 0x0000FF00) >> 8; 3606 event->portid.rscn_fid[2] = nportid & 0x000000FF; 3607 3608 phba->fc_stat.elsXmitRSCN++; 3609 elsiocb->cmd_cmpl = lpfc_cmpl_els_cmd; 3610 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3611 if (!elsiocb->ndlp) { 3612 lpfc_els_free_iocb(phba, elsiocb); 3613 return 1; 3614 } 3615 3616 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3617 "Issue RSCN: did:x%x", 3618 ndlp->nlp_DID, 0, 0); 3619 3620 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3621 if (rc == IOCB_ERROR) { 3622 lpfc_els_free_iocb(phba, elsiocb); 3623 lpfc_nlp_put(ndlp); 3624 return 1; 3625 } 3626 3627 return 0; 3628 } 3629 3630 /** 3631 * lpfc_issue_els_farpr - Issue a farp to an node on a vport 3632 * @vport: pointer to a host virtual N_Port data structure. 3633 * @nportid: N_Port identifier to the remote node. 3634 * @retry: number of retries to the command IOCB. 3635 * 3636 * This routine issues a Fibre Channel Address Resolution Response 3637 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid) 3638 * is passed into the function. It first search the @vport node list to find 3639 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created 3640 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the 3641 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command. 3642 * 3643 * Note that the ndlp reference count will be incremented by 1 for holding the 3644 * ndlp and the reference to ndlp will be stored into the ndlp field of 3645 * the IOCB for the completion callback function to the FARPR ELS command. 3646 * 3647 * Return code 3648 * 0 - Successfully issued farpr command 3649 * 1 - Failed to issue farpr command 3650 **/ 3651 static int 3652 lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) 3653 { 3654 int rc = 0; 3655 struct lpfc_hba *phba = vport->phba; 3656 struct lpfc_iocbq *elsiocb; 3657 FARP *fp; 3658 uint8_t *pcmd; 3659 uint32_t *lp; 3660 uint16_t cmdsize; 3661 struct lpfc_nodelist *ondlp; 3662 struct lpfc_nodelist *ndlp; 3663 3664 cmdsize = (sizeof(uint32_t) + sizeof(FARP)); 3665 3666 ndlp = lpfc_findnode_did(vport, nportid); 3667 if (!ndlp) { 3668 ndlp = lpfc_nlp_init(vport, nportid); 3669 if (!ndlp) 3670 return 1; 3671 lpfc_enqueue_node(vport, ndlp); 3672 } 3673 3674 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3675 ndlp->nlp_DID, ELS_CMD_FARPR); 3676 if (!elsiocb) 3677 return 1; 3678 3679 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 3680 3681 *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; 3682 pcmd += sizeof(uint32_t); 3683 3684 /* Fill in FARPR payload */ 3685 fp = (FARP *) (pcmd); 3686 memset(fp, 0, sizeof(FARP)); 3687 lp = (uint32_t *) pcmd; 3688 *lp++ = be32_to_cpu(nportid); 3689 *lp++ = be32_to_cpu(vport->fc_myDID); 3690 fp->Rflags = 0; 3691 fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); 3692 3693 memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)); 3694 memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 3695 ondlp = lpfc_findnode_did(vport, nportid); 3696 if (ondlp) { 3697 memcpy(&fp->OportName, &ondlp->nlp_portname, 3698 sizeof(struct lpfc_name)); 3699 memcpy(&fp->OnodeName, &ondlp->nlp_nodename, 3700 sizeof(struct lpfc_name)); 3701 } 3702 3703 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3704 "Issue FARPR: did:x%x", 3705 ndlp->nlp_DID, 0, 0); 3706 3707 phba->fc_stat.elsXmitFARPR++; 3708 elsiocb->cmd_cmpl = lpfc_cmpl_els_cmd; 3709 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3710 if (!elsiocb->ndlp) { 3711 lpfc_els_free_iocb(phba, elsiocb); 3712 return 1; 3713 } 3714 3715 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3716 if (rc == IOCB_ERROR) { 3717 /* The additional lpfc_nlp_put will cause the following 3718 * lpfc_els_free_iocb routine to trigger the release of 3719 * the node. 3720 */ 3721 lpfc_els_free_iocb(phba, elsiocb); 3722 lpfc_nlp_put(ndlp); 3723 return 1; 3724 } 3725 /* This will cause the callback-function lpfc_cmpl_els_cmd to 3726 * trigger the release of the node. 3727 */ 3728 /* Don't release reference count as RDF is likely outstanding */ 3729 return 0; 3730 } 3731 3732 /** 3733 * lpfc_issue_els_rdf - Register for diagnostic functions from the fabric. 3734 * @vport: pointer to a host virtual N_Port data structure. 3735 * @retry: retry counter for the command IOCB. 3736 * 3737 * This routine issues an ELS RDF to the Fabric Controller to register 3738 * for diagnostic functions. 3739 * 3740 * Note that the ndlp reference count will be incremented by 1 for holding the 3741 * ndlp and the reference to ndlp will be stored into the ndlp field of 3742 * the IOCB for the completion callback function to the RDF ELS command. 3743 * 3744 * Return code 3745 * 0 - Successfully issued rdf command 3746 * 1 - Failed to issue rdf command 3747 **/ 3748 int 3749 lpfc_issue_els_rdf(struct lpfc_vport *vport, uint8_t retry) 3750 { 3751 struct lpfc_hba *phba = vport->phba; 3752 struct lpfc_iocbq *elsiocb; 3753 struct lpfc_els_rdf_req *prdf; 3754 struct lpfc_nodelist *ndlp; 3755 uint16_t cmdsize; 3756 int rc; 3757 3758 cmdsize = sizeof(*prdf); 3759 3760 ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID); 3761 if (!ndlp) { 3762 ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID); 3763 if (!ndlp) 3764 return -ENODEV; 3765 lpfc_enqueue_node(vport, ndlp); 3766 } 3767 3768 /* RDF ELS is not required on an NPIV VN_Port. */ 3769 if (vport->port_type == LPFC_NPIV_PORT) 3770 return -EACCES; 3771 3772 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 3773 ndlp->nlp_DID, ELS_CMD_RDF); 3774 if (!elsiocb) 3775 return -ENOMEM; 3776 3777 /* Configure the payload for the supported FPIN events. */ 3778 prdf = (struct lpfc_els_rdf_req *)elsiocb->cmd_dmabuf->virt; 3779 memset(prdf, 0, cmdsize); 3780 prdf->rdf.fpin_cmd = ELS_RDF; 3781 prdf->rdf.desc_len = cpu_to_be32(sizeof(struct lpfc_els_rdf_req) - 3782 sizeof(struct fc_els_rdf)); 3783 prdf->reg_d1.reg_desc.desc_tag = cpu_to_be32(ELS_DTAG_FPIN_REGISTER); 3784 prdf->reg_d1.reg_desc.desc_len = cpu_to_be32( 3785 FC_TLV_DESC_LENGTH_FROM_SZ(prdf->reg_d1)); 3786 prdf->reg_d1.reg_desc.count = cpu_to_be32(ELS_RDF_REG_TAG_CNT); 3787 prdf->reg_d1.desc_tags[0] = cpu_to_be32(ELS_DTAG_LNK_INTEGRITY); 3788 prdf->reg_d1.desc_tags[1] = cpu_to_be32(ELS_DTAG_DELIVERY); 3789 prdf->reg_d1.desc_tags[2] = cpu_to_be32(ELS_DTAG_PEER_CONGEST); 3790 prdf->reg_d1.desc_tags[3] = cpu_to_be32(ELS_DTAG_CONGESTION); 3791 3792 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 3793 "6444 Xmit RDF to remote NPORT x%x Reg: %x %x\n", 3794 ndlp->nlp_DID, phba->cgn_reg_signal, 3795 phba->cgn_reg_fpin); 3796 3797 phba->cgn_fpin_frequency = LPFC_FPIN_INIT_FREQ; 3798 elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd; 3799 elsiocb->ndlp = lpfc_nlp_get(ndlp); 3800 if (!elsiocb->ndlp) { 3801 lpfc_els_free_iocb(phba, elsiocb); 3802 return -EIO; 3803 } 3804 3805 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3806 "Issue RDF: did:x%x refcnt %d", 3807 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 3808 3809 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 3810 if (rc == IOCB_ERROR) { 3811 lpfc_els_free_iocb(phba, elsiocb); 3812 lpfc_nlp_put(ndlp); 3813 return -EIO; 3814 } 3815 return 0; 3816 } 3817 3818 /** 3819 * lpfc_els_rcv_rdf - Receive RDF ELS request from the fabric. 3820 * @vport: pointer to a host virtual N_Port data structure. 3821 * @cmdiocb: pointer to lpfc command iocb data structure. 3822 * @ndlp: pointer to a node-list data structure. 3823 * 3824 * A received RDF implies a possible change to fabric supported diagnostic 3825 * functions. This routine sends LS_ACC and then has the Nx_Port issue a new 3826 * RDF request to reregister for supported diagnostic functions. 3827 * 3828 * Return code 3829 * 0 - Success 3830 * -EIO - Failed to process received RDF 3831 **/ 3832 static int 3833 lpfc_els_rcv_rdf(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 3834 struct lpfc_nodelist *ndlp) 3835 { 3836 /* Send LS_ACC */ 3837 if (lpfc_els_rsp_acc(vport, ELS_CMD_RDF, cmdiocb, ndlp, NULL)) { 3838 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 3839 "1623 Failed to RDF_ACC from x%x for x%x\n", 3840 ndlp->nlp_DID, vport->fc_myDID); 3841 return -EIO; 3842 } 3843 3844 /* Issue new RDF for reregistering */ 3845 if (lpfc_issue_els_rdf(vport, 0)) { 3846 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 3847 "2623 Failed to re register RDF for x%x\n", 3848 vport->fc_myDID); 3849 return -EIO; 3850 } 3851 3852 return 0; 3853 } 3854 3855 /** 3856 * lpfc_least_capable_settings - helper function for EDC rsp processing 3857 * @phba: pointer to lpfc hba data structure. 3858 * @pcgd: pointer to congestion detection descriptor in EDC rsp. 3859 * 3860 * This helper routine determines the least capable setting for 3861 * congestion signals, signal freq, including scale, from the 3862 * congestion detection descriptor in the EDC rsp. The routine 3863 * sets @phba values in preparation for a set_featues mailbox. 3864 **/ 3865 static void 3866 lpfc_least_capable_settings(struct lpfc_hba *phba, 3867 struct fc_diag_cg_sig_desc *pcgd) 3868 { 3869 u32 rsp_sig_cap = 0, drv_sig_cap = 0; 3870 u32 rsp_sig_freq_cyc = 0, rsp_sig_freq_scale = 0; 3871 3872 /* Get rsp signal and frequency capabilities. */ 3873 rsp_sig_cap = be32_to_cpu(pcgd->xmt_signal_capability); 3874 rsp_sig_freq_cyc = be16_to_cpu(pcgd->xmt_signal_frequency.count); 3875 rsp_sig_freq_scale = be16_to_cpu(pcgd->xmt_signal_frequency.units); 3876 3877 /* If the Fport does not support signals. Set FPIN only */ 3878 if (rsp_sig_cap == EDC_CG_SIG_NOTSUPPORTED) 3879 goto out_no_support; 3880 3881 /* Apply the xmt scale to the xmt cycle to get the correct frequency. 3882 * Adapter default is 100 millisSeconds. Convert all xmt cycle values 3883 * to milliSeconds. 3884 */ 3885 switch (rsp_sig_freq_scale) { 3886 case EDC_CG_SIGFREQ_SEC: 3887 rsp_sig_freq_cyc *= MSEC_PER_SEC; 3888 break; 3889 case EDC_CG_SIGFREQ_MSEC: 3890 rsp_sig_freq_cyc = 1; 3891 break; 3892 default: 3893 goto out_no_support; 3894 } 3895 3896 /* Convenient shorthand. */ 3897 drv_sig_cap = phba->cgn_reg_signal; 3898 3899 /* Choose the least capable frequency. */ 3900 if (rsp_sig_freq_cyc > phba->cgn_sig_freq) 3901 phba->cgn_sig_freq = rsp_sig_freq_cyc; 3902 3903 /* Should be some common signals support. Settle on least capable 3904 * signal and adjust FPIN values. Initialize defaults to ease the 3905 * decision. 3906 */ 3907 phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM; 3908 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 3909 if (rsp_sig_cap == EDC_CG_SIG_WARN_ONLY && 3910 (drv_sig_cap == EDC_CG_SIG_WARN_ONLY || 3911 drv_sig_cap == EDC_CG_SIG_WARN_ALARM)) { 3912 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY; 3913 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN; 3914 } 3915 if (rsp_sig_cap == EDC_CG_SIG_WARN_ALARM) { 3916 if (drv_sig_cap == EDC_CG_SIG_WARN_ALARM) { 3917 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ALARM; 3918 phba->cgn_reg_fpin = LPFC_CGN_FPIN_NONE; 3919 } 3920 if (drv_sig_cap == EDC_CG_SIG_WARN_ONLY) { 3921 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY; 3922 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN; 3923 } 3924 } 3925 3926 /* We are NOT recording signal frequency in congestion info buffer */ 3927 return; 3928 3929 out_no_support: 3930 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 3931 phba->cgn_sig_freq = 0; 3932 phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN; 3933 } 3934 3935 DECLARE_ENUM2STR_LOOKUP(lpfc_get_tlv_dtag_nm, fc_ls_tlv_dtag, 3936 FC_LS_TLV_DTAG_INIT); 3937 3938 /** 3939 * lpfc_cmpl_els_edc - Completion callback function for EDC 3940 * @phba: pointer to lpfc hba data structure. 3941 * @cmdiocb: pointer to lpfc command iocb data structure. 3942 * @rspiocb: pointer to lpfc response iocb data structure. 3943 * 3944 * This routine is the completion callback function for issuing the Exchange 3945 * Diagnostic Capabilities (EDC) command. The driver issues an EDC to 3946 * notify the FPort of its Congestion and Link Fault capabilities. This 3947 * routine parses the FPort's response and decides on the least common 3948 * values applicable to both FPort and NPort for Warnings and Alarms that 3949 * are communicated via hardware signals. 3950 **/ 3951 static void 3952 lpfc_cmpl_els_edc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 3953 struct lpfc_iocbq *rspiocb) 3954 { 3955 IOCB_t *irsp_iocb; 3956 struct fc_els_edc_resp *edc_rsp; 3957 struct fc_tlv_desc *tlv; 3958 struct fc_diag_cg_sig_desc *pcgd; 3959 struct fc_diag_lnkflt_desc *plnkflt; 3960 struct lpfc_dmabuf *pcmd, *prsp; 3961 const char *dtag_nm; 3962 u32 *pdata, dtag; 3963 int desc_cnt = 0, bytes_remain; 3964 bool rcv_cap_desc = false; 3965 struct lpfc_nodelist *ndlp; 3966 u32 ulp_status, ulp_word4, tmo, did, iotag; 3967 3968 ndlp = cmdiocb->ndlp; 3969 3970 ulp_status = get_job_ulpstatus(phba, rspiocb); 3971 ulp_word4 = get_job_word4(phba, rspiocb); 3972 did = get_job_els_rsp64_did(phba, rspiocb); 3973 3974 if (phba->sli_rev == LPFC_SLI_REV4) { 3975 tmo = get_wqe_tmo(rspiocb); 3976 iotag = get_wqe_reqtag(rspiocb); 3977 } else { 3978 irsp_iocb = &rspiocb->iocb; 3979 tmo = irsp_iocb->ulpTimeout; 3980 iotag = irsp_iocb->ulpIoTag; 3981 } 3982 3983 lpfc_debugfs_disc_trc(phba->pport, LPFC_DISC_TRC_ELS_CMD, 3984 "EDC cmpl: status:x%x/x%x did:x%x", 3985 ulp_status, ulp_word4, did); 3986 3987 /* ELS cmd tag <ulpIoTag> completes */ 3988 lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 3989 "4201 EDC cmd tag x%x completes Data: x%x x%x x%x\n", 3990 iotag, ulp_status, ulp_word4, tmo); 3991 3992 pcmd = cmdiocb->cmd_dmabuf; 3993 if (!pcmd) 3994 goto out; 3995 3996 pdata = (u32 *)pcmd->virt; 3997 if (!pdata) 3998 goto out; 3999 4000 /* Need to clear signal values, send features MB and RDF with FPIN. */ 4001 if (ulp_status) 4002 goto out; 4003 4004 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 4005 if (!prsp) 4006 goto out; 4007 4008 edc_rsp = prsp->virt; 4009 if (!edc_rsp) 4010 goto out; 4011 4012 /* ELS cmd tag <ulpIoTag> completes */ 4013 lpfc_printf_log(phba, KERN_INFO, 4014 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 4015 "4676 Fabric EDC Rsp: " 4016 "0x%02x, 0x%08x\n", 4017 edc_rsp->acc_hdr.la_cmd, 4018 be32_to_cpu(edc_rsp->desc_list_len)); 4019 4020 if (!lpfc_is_els_acc_rsp(prsp)) 4021 goto out; 4022 4023 /* 4024 * Payload length in bytes is the response descriptor list 4025 * length minus the 12 bytes of Link Service Request 4026 * Information descriptor in the reply. 4027 */ 4028 bytes_remain = be32_to_cpu(edc_rsp->desc_list_len) - 4029 sizeof(struct fc_els_lsri_desc); 4030 if (bytes_remain <= 0) 4031 goto out; 4032 4033 tlv = edc_rsp->desc; 4034 4035 /* 4036 * cycle through EDC diagnostic descriptors to find the 4037 * congestion signaling capability descriptor 4038 */ 4039 while (bytes_remain) { 4040 if (bytes_remain < FC_TLV_DESC_HDR_SZ) { 4041 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 4042 "6461 Truncated TLV hdr on " 4043 "Diagnostic descriptor[%d]\n", 4044 desc_cnt); 4045 goto out; 4046 } 4047 4048 dtag = be32_to_cpu(tlv->desc_tag); 4049 switch (dtag) { 4050 case ELS_DTAG_LNK_FAULT_CAP: 4051 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 4052 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 4053 sizeof(struct fc_diag_lnkflt_desc)) { 4054 lpfc_printf_log(phba, KERN_WARNING, 4055 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 4056 "6462 Truncated Link Fault Diagnostic " 4057 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 4058 desc_cnt, bytes_remain, 4059 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 4060 sizeof(struct fc_diag_lnkflt_desc)); 4061 goto out; 4062 } 4063 plnkflt = (struct fc_diag_lnkflt_desc *)tlv; 4064 lpfc_printf_log(phba, KERN_INFO, 4065 LOG_ELS | LOG_LDS_EVENT, 4066 "4617 Link Fault Desc Data: 0x%08x 0x%08x " 4067 "0x%08x 0x%08x 0x%08x\n", 4068 be32_to_cpu(plnkflt->desc_tag), 4069 be32_to_cpu(plnkflt->desc_len), 4070 be32_to_cpu( 4071 plnkflt->degrade_activate_threshold), 4072 be32_to_cpu( 4073 plnkflt->degrade_deactivate_threshold), 4074 be32_to_cpu(plnkflt->fec_degrade_interval)); 4075 break; 4076 case ELS_DTAG_CG_SIGNAL_CAP: 4077 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 4078 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 4079 sizeof(struct fc_diag_cg_sig_desc)) { 4080 lpfc_printf_log( 4081 phba, KERN_WARNING, LOG_CGN_MGMT, 4082 "6463 Truncated Cgn Signal Diagnostic " 4083 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 4084 desc_cnt, bytes_remain, 4085 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 4086 sizeof(struct fc_diag_cg_sig_desc)); 4087 goto out; 4088 } 4089 4090 pcgd = (struct fc_diag_cg_sig_desc *)tlv; 4091 lpfc_printf_log( 4092 phba, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 4093 "4616 CGN Desc Data: 0x%08x 0x%08x " 4094 "0x%08x 0x%04x 0x%04x 0x%08x 0x%04x 0x%04x\n", 4095 be32_to_cpu(pcgd->desc_tag), 4096 be32_to_cpu(pcgd->desc_len), 4097 be32_to_cpu(pcgd->xmt_signal_capability), 4098 be16_to_cpu(pcgd->xmt_signal_frequency.count), 4099 be16_to_cpu(pcgd->xmt_signal_frequency.units), 4100 be32_to_cpu(pcgd->rcv_signal_capability), 4101 be16_to_cpu(pcgd->rcv_signal_frequency.count), 4102 be16_to_cpu(pcgd->rcv_signal_frequency.units)); 4103 4104 /* Compare driver and Fport capabilities and choose 4105 * least common. 4106 */ 4107 lpfc_least_capable_settings(phba, pcgd); 4108 rcv_cap_desc = true; 4109 break; 4110 default: 4111 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 4112 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 4113 "4919 unknown Diagnostic " 4114 "Descriptor[%d]: tag x%x (%s)\n", 4115 desc_cnt, dtag, dtag_nm); 4116 } 4117 4118 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv); 4119 tlv = fc_tlv_next_desc(tlv); 4120 desc_cnt++; 4121 } 4122 4123 out: 4124 if (!rcv_cap_desc) { 4125 phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN; 4126 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 4127 phba->cgn_sig_freq = 0; 4128 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_CGN_MGMT, 4129 "4202 EDC rsp error - sending RDF " 4130 "for FPIN only.\n"); 4131 } 4132 4133 lpfc_config_cgn_signal(phba); 4134 4135 /* Check to see if link went down during discovery */ 4136 lpfc_els_chk_latt(phba->pport); 4137 lpfc_debugfs_disc_trc(phba->pport, LPFC_DISC_TRC_ELS_CMD, 4138 "EDC Cmpl: did:x%x refcnt %d", 4139 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 4140 lpfc_els_free_iocb(phba, cmdiocb); 4141 lpfc_nlp_put(ndlp); 4142 } 4143 4144 static void 4145 lpfc_format_edc_lft_desc(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 4146 { 4147 struct fc_diag_lnkflt_desc *lft = (struct fc_diag_lnkflt_desc *)tlv; 4148 4149 lft->desc_tag = cpu_to_be32(ELS_DTAG_LNK_FAULT_CAP); 4150 lft->desc_len = cpu_to_be32( 4151 FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_diag_lnkflt_desc)); 4152 4153 lft->degrade_activate_threshold = 4154 cpu_to_be32(phba->degrade_activate_threshold); 4155 lft->degrade_deactivate_threshold = 4156 cpu_to_be32(phba->degrade_deactivate_threshold); 4157 lft->fec_degrade_interval = cpu_to_be32(phba->fec_degrade_interval); 4158 } 4159 4160 static void 4161 lpfc_format_edc_cgn_desc(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 4162 { 4163 struct fc_diag_cg_sig_desc *cgd = (struct fc_diag_cg_sig_desc *)tlv; 4164 4165 /* We are assuming cgd was zero'ed before calling this routine */ 4166 4167 /* Configure the congestion detection capability */ 4168 cgd->desc_tag = cpu_to_be32(ELS_DTAG_CG_SIGNAL_CAP); 4169 4170 /* Descriptor len doesn't include the tag or len fields. */ 4171 cgd->desc_len = cpu_to_be32( 4172 FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_diag_cg_sig_desc)); 4173 4174 /* xmt_signal_capability already set to EDC_CG_SIG_NOTSUPPORTED. 4175 * xmt_signal_frequency.count already set to 0. 4176 * xmt_signal_frequency.units already set to 0. 4177 */ 4178 4179 if (phba->cmf_active_mode == LPFC_CFG_OFF) { 4180 /* rcv_signal_capability already set to EDC_CG_SIG_NOTSUPPORTED. 4181 * rcv_signal_frequency.count already set to 0. 4182 * rcv_signal_frequency.units already set to 0. 4183 */ 4184 phba->cgn_sig_freq = 0; 4185 return; 4186 } 4187 switch (phba->cgn_reg_signal) { 4188 case EDC_CG_SIG_WARN_ONLY: 4189 cgd->rcv_signal_capability = cpu_to_be32(EDC_CG_SIG_WARN_ONLY); 4190 break; 4191 case EDC_CG_SIG_WARN_ALARM: 4192 cgd->rcv_signal_capability = cpu_to_be32(EDC_CG_SIG_WARN_ALARM); 4193 break; 4194 default: 4195 /* rcv_signal_capability left 0 thus no support */ 4196 break; 4197 } 4198 4199 /* We start negotiation with lpfc_fabric_cgn_frequency, after 4200 * the completion we settle on the higher frequency. 4201 */ 4202 cgd->rcv_signal_frequency.count = 4203 cpu_to_be16(lpfc_fabric_cgn_frequency); 4204 cgd->rcv_signal_frequency.units = 4205 cpu_to_be16(EDC_CG_SIGFREQ_MSEC); 4206 } 4207 4208 static bool 4209 lpfc_link_is_lds_capable(struct lpfc_hba *phba) 4210 { 4211 if (!(phba->lmt & LMT_64Gb)) 4212 return false; 4213 if (phba->sli_rev != LPFC_SLI_REV4) 4214 return false; 4215 4216 if (phba->sli4_hba.conf_trunk) { 4217 if (phba->trunk_link.phy_lnk_speed == LPFC_USER_LINK_SPEED_64G) 4218 return true; 4219 } else if (phba->fc_linkspeed == LPFC_LINK_SPEED_64GHZ) { 4220 return true; 4221 } 4222 return false; 4223 } 4224 4225 /** 4226 * lpfc_issue_els_edc - Exchange Diagnostic Capabilities with the fabric. 4227 * @vport: pointer to a host virtual N_Port data structure. 4228 * @retry: retry counter for the command iocb. 4229 * 4230 * This routine issues an ELS EDC to the F-Port Controller to communicate 4231 * this N_Port's support of hardware signals in its Congestion 4232 * Capabilities Descriptor. 4233 * 4234 * Note: This routine does not check if one or more signals are 4235 * set in the cgn_reg_signal parameter. The caller makes the 4236 * decision to enforce cgn_reg_signal as nonzero or zero depending 4237 * on the conditions. During Fabric requests, the driver 4238 * requires cgn_reg_signals to be nonzero. But a dynamic request 4239 * to set the congestion mode to OFF from Monitor or Manage 4240 * would correctly issue an EDC with no signals enabled to 4241 * turn off switch functionality and then update the FW. 4242 * 4243 * Return code 4244 * 0 - Successfully issued edc command 4245 * 1 - Failed to issue edc command 4246 **/ 4247 int 4248 lpfc_issue_els_edc(struct lpfc_vport *vport, uint8_t retry) 4249 { 4250 struct lpfc_hba *phba = vport->phba; 4251 struct lpfc_iocbq *elsiocb; 4252 struct fc_els_edc *edc_req; 4253 struct fc_tlv_desc *tlv; 4254 u16 cmdsize; 4255 struct lpfc_nodelist *ndlp; 4256 u8 *pcmd = NULL; 4257 u32 cgn_desc_size, lft_desc_size; 4258 int rc; 4259 4260 if (vport->port_type == LPFC_NPIV_PORT) 4261 return -EACCES; 4262 4263 ndlp = lpfc_findnode_did(vport, Fabric_DID); 4264 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 4265 return -ENODEV; 4266 4267 cgn_desc_size = (phba->cgn_init_reg_signal) ? 4268 sizeof(struct fc_diag_cg_sig_desc) : 0; 4269 lft_desc_size = (lpfc_link_is_lds_capable(phba)) ? 4270 sizeof(struct fc_diag_lnkflt_desc) : 0; 4271 cmdsize = cgn_desc_size + lft_desc_size; 4272 4273 /* Skip EDC if no applicable descriptors */ 4274 if (!cmdsize) 4275 goto try_rdf; 4276 4277 cmdsize += sizeof(struct fc_els_edc); 4278 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, 4279 ndlp->nlp_DID, ELS_CMD_EDC); 4280 if (!elsiocb) 4281 goto try_rdf; 4282 4283 /* Configure the payload for the supported Diagnostics capabilities. */ 4284 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 4285 memset(pcmd, 0, cmdsize); 4286 edc_req = (struct fc_els_edc *)pcmd; 4287 edc_req->desc_len = cpu_to_be32(cgn_desc_size + lft_desc_size); 4288 edc_req->edc_cmd = ELS_EDC; 4289 tlv = edc_req->desc; 4290 4291 if (cgn_desc_size) { 4292 lpfc_format_edc_cgn_desc(phba, tlv); 4293 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency; 4294 tlv = fc_tlv_next_desc(tlv); 4295 } 4296 4297 if (lft_desc_size) 4298 lpfc_format_edc_lft_desc(phba, tlv); 4299 4300 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, 4301 "4623 Xmit EDC to remote " 4302 "NPORT x%x reg_sig x%x reg_fpin:x%x\n", 4303 ndlp->nlp_DID, phba->cgn_reg_signal, 4304 phba->cgn_reg_fpin); 4305 4306 elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd; 4307 elsiocb->ndlp = lpfc_nlp_get(ndlp); 4308 if (!elsiocb->ndlp) { 4309 lpfc_els_free_iocb(phba, elsiocb); 4310 return -EIO; 4311 } 4312 4313 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4314 "Issue EDC: did:x%x refcnt %d", 4315 ndlp->nlp_DID, kref_read(&ndlp->kref), 0); 4316 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 4317 if (rc == IOCB_ERROR) { 4318 /* The additional lpfc_nlp_put will cause the following 4319 * lpfc_els_free_iocb routine to trigger the rlease of 4320 * the node. 4321 */ 4322 lpfc_els_free_iocb(phba, elsiocb); 4323 lpfc_nlp_put(ndlp); 4324 goto try_rdf; 4325 } 4326 return 0; 4327 try_rdf: 4328 phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM; 4329 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 4330 rc = lpfc_issue_els_rdf(vport, 0); 4331 return rc; 4332 } 4333 4334 /** 4335 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry 4336 * @vport: pointer to a host virtual N_Port data structure. 4337 * @nlp: pointer to a node-list data structure. 4338 * 4339 * This routine cancels the timer with a delayed IOCB-command retry for 4340 * a @vport's @ndlp. It stops the timer for the delayed function retrial and 4341 * removes the ELS retry event if it presents. In addition, if the 4342 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB 4343 * commands are sent for the @vport's nodes that require issuing discovery 4344 * ADISC. 4345 **/ 4346 void 4347 lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) 4348 { 4349 struct lpfc_work_evt *evtp; 4350 4351 if (!test_and_clear_bit(NLP_DELAY_TMO, &nlp->nlp_flag)) 4352 return; 4353 del_timer_sync(&nlp->nlp_delayfunc); 4354 nlp->nlp_last_elscmd = 0; 4355 if (!list_empty(&nlp->els_retry_evt.evt_listp)) { 4356 list_del_init(&nlp->els_retry_evt.evt_listp); 4357 /* Decrement nlp reference count held for the delayed retry */ 4358 evtp = &nlp->els_retry_evt; 4359 lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1); 4360 } 4361 if (test_and_clear_bit(NLP_NPR_2B_DISC, &nlp->nlp_flag)) { 4362 if (vport->num_disc_nodes) { 4363 if (vport->port_state < LPFC_VPORT_READY) { 4364 /* Check if there are more ADISCs to be sent */ 4365 lpfc_more_adisc(vport); 4366 } else { 4367 /* Check if there are more PLOGIs to be sent */ 4368 lpfc_more_plogi(vport); 4369 if (vport->num_disc_nodes == 0) { 4370 clear_bit(FC_NDISC_ACTIVE, 4371 &vport->fc_flag); 4372 lpfc_can_disctmo(vport); 4373 lpfc_end_rscn(vport); 4374 } 4375 } 4376 } 4377 } 4378 return; 4379 } 4380 4381 /** 4382 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer 4383 * @t: pointer to the timer function associated data (ndlp). 4384 * 4385 * This routine is invoked by the ndlp delayed-function timer to check 4386 * whether there is any pending ELS retry event(s) with the node. If not, it 4387 * simply returns. Otherwise, if there is at least one ELS delayed event, it 4388 * adds the delayed events to the HBA work list and invokes the 4389 * lpfc_worker_wake_up() routine to wake up worker thread to process the 4390 * event. Note that lpfc_nlp_get() is called before posting the event to 4391 * the work list to hold reference count of ndlp so that it guarantees the 4392 * reference to ndlp will still be available when the worker thread gets 4393 * to the event associated with the ndlp. 4394 **/ 4395 void 4396 lpfc_els_retry_delay(struct timer_list *t) 4397 { 4398 struct lpfc_nodelist *ndlp = from_timer(ndlp, t, nlp_delayfunc); 4399 struct lpfc_vport *vport = ndlp->vport; 4400 struct lpfc_hba *phba = vport->phba; 4401 unsigned long flags; 4402 struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; 4403 4404 /* Hold a node reference for outstanding queued work */ 4405 if (!lpfc_nlp_get(ndlp)) 4406 return; 4407 4408 spin_lock_irqsave(&phba->hbalock, flags); 4409 if (!list_empty(&evtp->evt_listp)) { 4410 spin_unlock_irqrestore(&phba->hbalock, flags); 4411 lpfc_nlp_put(ndlp); 4412 return; 4413 } 4414 4415 evtp->evt_arg1 = ndlp; 4416 evtp->evt = LPFC_EVT_ELS_RETRY; 4417 list_add_tail(&evtp->evt_listp, &phba->work_list); 4418 spin_unlock_irqrestore(&phba->hbalock, flags); 4419 4420 lpfc_worker_wake_up(phba); 4421 } 4422 4423 /** 4424 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function 4425 * @ndlp: pointer to a node-list data structure. 4426 * 4427 * This routine is the worker-thread handler for processing the @ndlp delayed 4428 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves 4429 * the last ELS command from the associated ndlp and invokes the proper ELS 4430 * function according to the delayed ELS command to retry the command. 4431 **/ 4432 void 4433 lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) 4434 { 4435 struct lpfc_vport *vport = ndlp->vport; 4436 uint32_t cmd, retry; 4437 4438 spin_lock_irq(&ndlp->lock); 4439 cmd = ndlp->nlp_last_elscmd; 4440 ndlp->nlp_last_elscmd = 0; 4441 spin_unlock_irq(&ndlp->lock); 4442 4443 if (!test_and_clear_bit(NLP_DELAY_TMO, &ndlp->nlp_flag)) 4444 return; 4445 4446 /* 4447 * If a discovery event readded nlp_delayfunc after timer 4448 * firing and before processing the timer, cancel the 4449 * nlp_delayfunc. 4450 */ 4451 del_timer_sync(&ndlp->nlp_delayfunc); 4452 retry = ndlp->nlp_retry; 4453 ndlp->nlp_retry = 0; 4454 4455 switch (cmd) { 4456 case ELS_CMD_FLOGI: 4457 lpfc_issue_els_flogi(vport, ndlp, retry); 4458 break; 4459 case ELS_CMD_PLOGI: 4460 if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) { 4461 ndlp->nlp_prev_state = ndlp->nlp_state; 4462 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 4463 } 4464 break; 4465 case ELS_CMD_ADISC: 4466 if (!lpfc_issue_els_adisc(vport, ndlp, retry)) { 4467 ndlp->nlp_prev_state = ndlp->nlp_state; 4468 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 4469 } 4470 break; 4471 case ELS_CMD_PRLI: 4472 case ELS_CMD_NVMEPRLI: 4473 if (!lpfc_issue_els_prli(vport, ndlp, retry)) { 4474 ndlp->nlp_prev_state = ndlp->nlp_state; 4475 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 4476 } 4477 break; 4478 case ELS_CMD_LOGO: 4479 if (!lpfc_issue_els_logo(vport, ndlp, retry)) { 4480 ndlp->nlp_prev_state = ndlp->nlp_state; 4481 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); 4482 } 4483 break; 4484 case ELS_CMD_FDISC: 4485 if (!test_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag)) 4486 lpfc_issue_els_fdisc(vport, ndlp, retry); 4487 break; 4488 } 4489 return; 4490 } 4491 4492 /** 4493 * lpfc_link_reset - Issue link reset 4494 * @vport: pointer to a virtual N_Port data structure. 4495 * 4496 * This routine performs link reset by sending INIT_LINK mailbox command. 4497 * For SLI-3 adapter, link attention interrupt is enabled before issuing 4498 * INIT_LINK mailbox command. 4499 * 4500 * Return code 4501 * 0 - Link reset initiated successfully 4502 * 1 - Failed to initiate link reset 4503 **/ 4504 int 4505 lpfc_link_reset(struct lpfc_vport *vport) 4506 { 4507 struct lpfc_hba *phba = vport->phba; 4508 LPFC_MBOXQ_t *mbox; 4509 uint32_t control; 4510 int rc; 4511 4512 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 4513 "2851 Attempt link reset\n"); 4514 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4515 if (!mbox) { 4516 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4517 "2852 Failed to allocate mbox memory"); 4518 return 1; 4519 } 4520 4521 /* Enable Link attention interrupts */ 4522 if (phba->sli_rev <= LPFC_SLI_REV3) { 4523 spin_lock_irq(&phba->hbalock); 4524 phba->sli.sli_flag |= LPFC_PROCESS_LA; 4525 control = readl(phba->HCregaddr); 4526 control |= HC_LAINT_ENA; 4527 writel(control, phba->HCregaddr); 4528 readl(phba->HCregaddr); /* flush */ 4529 spin_unlock_irq(&phba->hbalock); 4530 } 4531 4532 lpfc_init_link(phba, mbox, phba->cfg_topology, 4533 phba->cfg_link_speed); 4534 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4535 mbox->vport = vport; 4536 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4537 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 4538 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4539 "2853 Failed to issue INIT_LINK " 4540 "mbox command, rc:x%x\n", rc); 4541 mempool_free(mbox, phba->mbox_mem_pool); 4542 return 1; 4543 } 4544 4545 return 0; 4546 } 4547 4548 /** 4549 * lpfc_els_retry - Make retry decision on an els command iocb 4550 * @phba: pointer to lpfc hba data structure. 4551 * @cmdiocb: pointer to lpfc command iocb data structure. 4552 * @rspiocb: pointer to lpfc response iocb data structure. 4553 * 4554 * This routine makes a retry decision on an ELS command IOCB, which has 4555 * failed. The following ELS IOCBs use this function for retrying the command 4556 * when previously issued command responsed with error status: FLOGI, PLOGI, 4557 * PRLI, ADISC and FDISC. Based on the ELS command type and the 4558 * returned error status, it makes the decision whether a retry shall be 4559 * issued for the command, and whether a retry shall be made immediately or 4560 * delayed. In the former case, the corresponding ELS command issuing-function 4561 * is called to retry the command. In the later case, the ELS command shall 4562 * be posted to the ndlp delayed event and delayed function timer set to the 4563 * ndlp for the delayed command issusing. 4564 * 4565 * Return code 4566 * 0 - No retry of els command is made 4567 * 1 - Immediate or delayed retry of els command is made 4568 **/ 4569 static int 4570 lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 4571 struct lpfc_iocbq *rspiocb) 4572 { 4573 struct lpfc_vport *vport = cmdiocb->vport; 4574 union lpfc_wqe128 *irsp = &rspiocb->wqe; 4575 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 4576 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 4577 uint32_t *elscmd; 4578 struct ls_rjt stat; 4579 int retry = 0, maxretry = lpfc_max_els_tries, delay = 0; 4580 int logerr = 0; 4581 uint32_t cmd = 0; 4582 uint32_t did; 4583 int link_reset = 0, rc; 4584 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 4585 u32 ulp_word4 = get_job_word4(phba, rspiocb); 4586 4587 4588 /* Note: cmd_dmabuf may be 0 for internal driver abort 4589 * of delays ELS command. 4590 */ 4591 4592 if (pcmd && pcmd->virt) { 4593 elscmd = (uint32_t *) (pcmd->virt); 4594 cmd = *elscmd++; 4595 } 4596 4597 if (ndlp) 4598 did = ndlp->nlp_DID; 4599 else { 4600 /* We should only hit this case for retrying PLOGI */ 4601 did = get_job_els_rsp64_did(phba, rspiocb); 4602 ndlp = lpfc_findnode_did(vport, did); 4603 if (!ndlp && (cmd != ELS_CMD_PLOGI)) 4604 return 0; 4605 } 4606 4607 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4608 "Retry ELS: wd7:x%x wd4:x%x did:x%x", 4609 *(((uint32_t *)irsp) + 7), ulp_word4, did); 4610 4611 switch (ulp_status) { 4612 case IOSTAT_FCP_RSP_ERROR: 4613 break; 4614 case IOSTAT_REMOTE_STOP: 4615 if (phba->sli_rev == LPFC_SLI_REV4) { 4616 /* This IO was aborted by the target, we don't 4617 * know the rxid and because we did not send the 4618 * ABTS we cannot generate and RRQ. 4619 */ 4620 lpfc_set_rrq_active(phba, ndlp, 4621 cmdiocb->sli4_lxritag, 0, 0); 4622 } 4623 break; 4624 case IOSTAT_LOCAL_REJECT: 4625 switch ((ulp_word4 & IOERR_PARAM_MASK)) { 4626 case IOERR_LOOP_OPEN_FAILURE: 4627 if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) 4628 delay = 1000; 4629 retry = 1; 4630 break; 4631 4632 case IOERR_ILLEGAL_COMMAND: 4633 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4634 "0124 Retry illegal cmd x%x " 4635 "retry:x%x delay:x%x\n", 4636 cmd, cmdiocb->retry, delay); 4637 retry = 1; 4638 /* All command's retry policy */ 4639 maxretry = 8; 4640 if (cmdiocb->retry > 2) 4641 delay = 1000; 4642 break; 4643 4644 case IOERR_NO_RESOURCES: 4645 logerr = 1; /* HBA out of resources */ 4646 retry = 1; 4647 if (cmdiocb->retry > 100) 4648 delay = 100; 4649 maxretry = 250; 4650 break; 4651 4652 case IOERR_ILLEGAL_FRAME: 4653 delay = 100; 4654 retry = 1; 4655 break; 4656 4657 case IOERR_INVALID_RPI: 4658 if (cmd == ELS_CMD_PLOGI && 4659 did == NameServer_DID) { 4660 /* Continue forever if plogi to */ 4661 /* the nameserver fails */ 4662 maxretry = 0; 4663 delay = 100; 4664 } else if (cmd == ELS_CMD_PRLI && 4665 ndlp->nlp_state != NLP_STE_PRLI_ISSUE) { 4666 /* State-command disagreement. The PRLI was 4667 * failed with an invalid rpi meaning there 4668 * some unexpected state change. Don't retry. 4669 */ 4670 maxretry = 0; 4671 retry = 0; 4672 break; 4673 } 4674 retry = 1; 4675 break; 4676 4677 case IOERR_SEQUENCE_TIMEOUT: 4678 if (cmd == ELS_CMD_PLOGI && 4679 did == NameServer_DID && 4680 (cmdiocb->retry + 1) == maxretry) { 4681 /* Reset the Link */ 4682 link_reset = 1; 4683 break; 4684 } 4685 retry = 1; 4686 delay = 100; 4687 break; 4688 case IOERR_SLI_ABORTED: 4689 /* Retry ELS PLOGI command? 4690 * Possibly the rport just wasn't ready. 4691 */ 4692 if (cmd == ELS_CMD_PLOGI) { 4693 /* No retry if state change */ 4694 if (ndlp && 4695 ndlp->nlp_state != NLP_STE_PLOGI_ISSUE) 4696 goto out_retry; 4697 retry = 1; 4698 maxretry = 2; 4699 } 4700 break; 4701 } 4702 break; 4703 4704 case IOSTAT_NPORT_RJT: 4705 case IOSTAT_FABRIC_RJT: 4706 if (ulp_word4 & RJT_UNAVAIL_TEMP) { 4707 retry = 1; 4708 break; 4709 } 4710 break; 4711 4712 case IOSTAT_NPORT_BSY: 4713 case IOSTAT_FABRIC_BSY: 4714 logerr = 1; /* Fabric / Remote NPort out of resources */ 4715 retry = 1; 4716 break; 4717 4718 case IOSTAT_LS_RJT: 4719 stat.un.ls_rjt_error_be = cpu_to_be32(ulp_word4); 4720 /* Added for Vendor specifc support 4721 * Just keep retrying for these Rsn / Exp codes 4722 */ 4723 if (test_bit(FC_PT2PT, &vport->fc_flag) && 4724 cmd == ELS_CMD_NVMEPRLI) { 4725 switch (stat.un.b.lsRjtRsnCode) { 4726 case LSRJT_UNABLE_TPC: 4727 case LSRJT_INVALID_CMD: 4728 case LSRJT_LOGICAL_ERR: 4729 case LSRJT_CMD_UNSUPPORTED: 4730 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS, 4731 "0168 NVME PRLI LS_RJT " 4732 "reason %x port doesn't " 4733 "support NVME, disabling NVME\n", 4734 stat.un.b.lsRjtRsnCode); 4735 retry = 0; 4736 set_bit(FC_PT2PT_NO_NVME, &vport->fc_flag); 4737 goto out_retry; 4738 } 4739 } 4740 switch (stat.un.b.lsRjtRsnCode) { 4741 case LSRJT_UNABLE_TPC: 4742 /* Special case for PRLI LS_RJTs. Recall that lpfc 4743 * uses a single routine to issue both PRLI FC4 types. 4744 * If the PRLI is rejected because that FC4 type 4745 * isn't really supported, don't retry and cause 4746 * multiple transport registrations. Otherwise, parse 4747 * the reason code/reason code explanation and take the 4748 * appropriate action. 4749 */ 4750 lpfc_printf_vlog(vport, KERN_INFO, 4751 LOG_DISCOVERY | LOG_ELS | LOG_NODE, 4752 "0153 ELS cmd x%x LS_RJT by x%x. " 4753 "RsnCode x%x RsnCodeExp x%x\n", 4754 cmd, did, stat.un.b.lsRjtRsnCode, 4755 stat.un.b.lsRjtRsnCodeExp); 4756 4757 switch (stat.un.b.lsRjtRsnCodeExp) { 4758 case LSEXP_CANT_GIVE_DATA: 4759 case LSEXP_CMD_IN_PROGRESS: 4760 if (cmd == ELS_CMD_PLOGI) { 4761 delay = 1000; 4762 maxretry = 48; 4763 } 4764 retry = 1; 4765 break; 4766 case LSEXP_REQ_UNSUPPORTED: 4767 case LSEXP_NO_RSRC_ASSIGN: 4768 /* These explanation codes get no retry. */ 4769 if (cmd == ELS_CMD_PRLI || 4770 cmd == ELS_CMD_NVMEPRLI) 4771 break; 4772 fallthrough; 4773 default: 4774 /* Limit the delay and retry action to a limited 4775 * cmd set. There are other ELS commands where 4776 * a retry is not expected. 4777 */ 4778 if (cmd == ELS_CMD_PLOGI || 4779 cmd == ELS_CMD_PRLI || 4780 cmd == ELS_CMD_NVMEPRLI) { 4781 delay = 1000; 4782 maxretry = lpfc_max_els_tries + 1; 4783 retry = 1; 4784 } 4785 break; 4786 } 4787 4788 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 4789 (cmd == ELS_CMD_FDISC) && 4790 (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){ 4791 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 4792 "0125 FDISC (x%x). " 4793 "Fabric out of resources\n", 4794 stat.un.lsRjtError); 4795 lpfc_vport_set_state(vport, 4796 FC_VPORT_NO_FABRIC_RSCS); 4797 } 4798 break; 4799 4800 case LSRJT_LOGICAL_BSY: 4801 if ((cmd == ELS_CMD_PLOGI) || 4802 (cmd == ELS_CMD_PRLI) || 4803 (cmd == ELS_CMD_NVMEPRLI)) { 4804 delay = 1000; 4805 maxretry = 48; 4806 } else if (cmd == ELS_CMD_FDISC) { 4807 /* FDISC retry policy */ 4808 maxretry = 48; 4809 if (cmdiocb->retry >= 32) 4810 delay = 1000; 4811 } 4812 retry = 1; 4813 break; 4814 4815 case LSRJT_LOGICAL_ERR: 4816 /* There are some cases where switches return this 4817 * error when they are not ready and should be returning 4818 * Logical Busy. We should delay every time. 4819 */ 4820 if (cmd == ELS_CMD_FDISC && 4821 stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) { 4822 maxretry = 3; 4823 delay = 1000; 4824 retry = 1; 4825 } else if (cmd == ELS_CMD_FLOGI && 4826 stat.un.b.lsRjtRsnCodeExp == 4827 LSEXP_NOTHING_MORE) { 4828 vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf; 4829 retry = 1; 4830 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 4831 "0820 FLOGI (x%x). " 4832 "BBCredit Not Supported\n", 4833 stat.un.lsRjtError); 4834 } 4835 break; 4836 4837 case LSRJT_PROTOCOL_ERR: 4838 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 4839 (cmd == ELS_CMD_FDISC) && 4840 ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) || 4841 (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) 4842 ) { 4843 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 4844 "0122 FDISC (x%x). " 4845 "Fabric Detected Bad WWN\n", 4846 stat.un.lsRjtError); 4847 lpfc_vport_set_state(vport, 4848 FC_VPORT_FABRIC_REJ_WWN); 4849 } 4850 break; 4851 case LSRJT_VENDOR_UNIQUE: 4852 if ((stat.un.b.vendorUnique == 0x45) && 4853 (cmd == ELS_CMD_FLOGI)) { 4854 goto out_retry; 4855 } 4856 break; 4857 case LSRJT_CMD_UNSUPPORTED: 4858 /* lpfc nvmet returns this type of LS_RJT when it 4859 * receives an FCP PRLI because lpfc nvmet only 4860 * support NVME. ELS request is terminated for FCP4 4861 * on this rport. 4862 */ 4863 if (stat.un.b.lsRjtRsnCodeExp == 4864 LSEXP_REQ_UNSUPPORTED) { 4865 if (cmd == ELS_CMD_PRLI) 4866 goto out_retry; 4867 } 4868 break; 4869 } 4870 break; 4871 4872 case IOSTAT_INTERMED_RSP: 4873 case IOSTAT_BA_RJT: 4874 break; 4875 4876 default: 4877 break; 4878 } 4879 4880 if (link_reset) { 4881 rc = lpfc_link_reset(vport); 4882 if (rc) { 4883 /* Do not give up. Retry PLOGI one more time and attempt 4884 * link reset if PLOGI fails again. 4885 */ 4886 retry = 1; 4887 delay = 100; 4888 goto out_retry; 4889 } 4890 return 1; 4891 } 4892 4893 if (did == FDMI_DID) 4894 retry = 1; 4895 4896 if ((cmd == ELS_CMD_FLOGI) && 4897 (phba->fc_topology != LPFC_TOPOLOGY_LOOP) && 4898 !lpfc_error_lost_link(vport, ulp_status, ulp_word4)) { 4899 /* FLOGI retry policy */ 4900 retry = 1; 4901 /* retry FLOGI forever */ 4902 if (phba->link_flag != LS_LOOPBACK_MODE) 4903 maxretry = 0; 4904 else 4905 maxretry = 2; 4906 4907 if (cmdiocb->retry >= 100) 4908 delay = 5000; 4909 else if (cmdiocb->retry >= 32) 4910 delay = 1000; 4911 } else if ((cmd == ELS_CMD_FDISC) && 4912 !lpfc_error_lost_link(vport, ulp_status, ulp_word4)) { 4913 /* retry FDISCs every second up to devloss */ 4914 retry = 1; 4915 maxretry = vport->cfg_devloss_tmo; 4916 delay = 1000; 4917 } 4918 4919 cmdiocb->retry++; 4920 if (maxretry && (cmdiocb->retry >= maxretry)) { 4921 phba->fc_stat.elsRetryExceeded++; 4922 retry = 0; 4923 } 4924 4925 if (test_bit(FC_UNLOADING, &vport->load_flag)) 4926 retry = 0; 4927 4928 out_retry: 4929 if (retry) { 4930 if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) { 4931 /* Stop retrying PLOGI and FDISC if in FCF discovery */ 4932 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4933 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 4934 "2849 Stop retry ELS command " 4935 "x%x to remote NPORT x%x, " 4936 "Data: x%x x%x\n", cmd, did, 4937 cmdiocb->retry, delay); 4938 return 0; 4939 } 4940 } 4941 4942 /* Retry ELS command <elsCmd> to remote NPORT <did> */ 4943 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 4944 "0107 Retry ELS command x%x to remote " 4945 "NPORT x%x Data: x%x x%x\n", 4946 cmd, did, cmdiocb->retry, delay); 4947 4948 if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) && 4949 ((ulp_status != IOSTAT_LOCAL_REJECT) || 4950 ((ulp_word4 & IOERR_PARAM_MASK) != 4951 IOERR_NO_RESOURCES))) { 4952 /* Don't reset timer for no resources */ 4953 4954 /* If discovery / RSCN timer is running, reset it */ 4955 if (timer_pending(&vport->fc_disctmo) || 4956 test_bit(FC_RSCN_MODE, &vport->fc_flag)) 4957 lpfc_set_disctmo(vport); 4958 } 4959 4960 phba->fc_stat.elsXmitRetry++; 4961 if (ndlp && delay) { 4962 phba->fc_stat.elsDelayRetry++; 4963 ndlp->nlp_retry = cmdiocb->retry; 4964 4965 /* delay is specified in milliseconds */ 4966 mod_timer(&ndlp->nlp_delayfunc, 4967 jiffies + msecs_to_jiffies(delay)); 4968 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 4969 4970 ndlp->nlp_prev_state = ndlp->nlp_state; 4971 if ((cmd == ELS_CMD_PRLI) || 4972 (cmd == ELS_CMD_NVMEPRLI)) 4973 lpfc_nlp_set_state(vport, ndlp, 4974 NLP_STE_PRLI_ISSUE); 4975 else if (cmd != ELS_CMD_ADISC) 4976 lpfc_nlp_set_state(vport, ndlp, 4977 NLP_STE_NPR_NODE); 4978 ndlp->nlp_last_elscmd = cmd; 4979 4980 return 1; 4981 } 4982 switch (cmd) { 4983 case ELS_CMD_FLOGI: 4984 lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry); 4985 return 1; 4986 case ELS_CMD_FDISC: 4987 lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry); 4988 return 1; 4989 case ELS_CMD_PLOGI: 4990 if (ndlp) { 4991 ndlp->nlp_prev_state = ndlp->nlp_state; 4992 lpfc_nlp_set_state(vport, ndlp, 4993 NLP_STE_PLOGI_ISSUE); 4994 } 4995 lpfc_issue_els_plogi(vport, did, cmdiocb->retry); 4996 return 1; 4997 case ELS_CMD_ADISC: 4998 ndlp->nlp_prev_state = ndlp->nlp_state; 4999 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 5000 lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry); 5001 return 1; 5002 case ELS_CMD_PRLI: 5003 case ELS_CMD_NVMEPRLI: 5004 ndlp->nlp_prev_state = ndlp->nlp_state; 5005 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 5006 lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry); 5007 return 1; 5008 case ELS_CMD_LOGO: 5009 ndlp->nlp_prev_state = ndlp->nlp_state; 5010 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); 5011 lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry); 5012 return 1; 5013 } 5014 } 5015 /* No retry ELS command <elsCmd> to remote NPORT <did> */ 5016 if (logerr) { 5017 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5018 "0137 No retry ELS command x%x to remote " 5019 "NPORT x%x: Out of Resources: Error:x%x/%x " 5020 "IoTag x%x\n", 5021 cmd, did, ulp_status, ulp_word4, 5022 cmdiocb->iotag); 5023 } 5024 else { 5025 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5026 "0108 No retry ELS command x%x to remote " 5027 "NPORT x%x Retried:%d Error:x%x/%x " 5028 "IoTag x%x nflags x%lx\n", 5029 cmd, did, cmdiocb->retry, ulp_status, 5030 ulp_word4, cmdiocb->iotag, 5031 (ndlp ? ndlp->nlp_flag : 0)); 5032 } 5033 return 0; 5034 } 5035 5036 /** 5037 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb 5038 * @phba: pointer to lpfc hba data structure. 5039 * @buf_ptr1: pointer to the lpfc DMA buffer data structure. 5040 * 5041 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s) 5042 * associated with a command IOCB back to the lpfc DMA buffer pool. It first 5043 * checks to see whether there is a lpfc DMA buffer associated with the 5044 * response of the command IOCB. If so, it will be released before releasing 5045 * the lpfc DMA buffer associated with the IOCB itself. 5046 * 5047 * Return code 5048 * 0 - Successfully released lpfc DMA buffer (currently, always return 0) 5049 **/ 5050 static int 5051 lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1) 5052 { 5053 struct lpfc_dmabuf *buf_ptr; 5054 5055 /* Free the response before processing the command. */ 5056 if (!list_empty(&buf_ptr1->list)) { 5057 list_remove_head(&buf_ptr1->list, buf_ptr, 5058 struct lpfc_dmabuf, 5059 list); 5060 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 5061 kfree(buf_ptr); 5062 } 5063 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); 5064 kfree(buf_ptr1); 5065 return 0; 5066 } 5067 5068 /** 5069 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl 5070 * @phba: pointer to lpfc hba data structure. 5071 * @buf_ptr: pointer to the lpfc dma buffer data structure. 5072 * 5073 * This routine releases the lpfc Direct Memory Access (DMA) buffer 5074 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer 5075 * pool. 5076 * 5077 * Return code 5078 * 0 - Successfully released lpfc DMA buffer (currently, always return 0) 5079 **/ 5080 static int 5081 lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr) 5082 { 5083 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 5084 kfree(buf_ptr); 5085 return 0; 5086 } 5087 5088 /** 5089 * lpfc_els_free_iocb - Free a command iocb and its associated resources 5090 * @phba: pointer to lpfc hba data structure. 5091 * @elsiocb: pointer to lpfc els command iocb data structure. 5092 * 5093 * This routine frees a command IOCB and its associated resources. The 5094 * command IOCB data structure contains the reference to various associated 5095 * resources, these fields must be set to NULL if the associated reference 5096 * not present: 5097 * cmd_dmabuf - reference to cmd. 5098 * cmd_dmabuf->next - reference to rsp 5099 * rsp_dmabuf - unused 5100 * bpl_dmabuf - reference to bpl 5101 * 5102 * It first properly decrements the reference count held on ndlp for the 5103 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not 5104 * set, it invokes the lpfc_els_free_data() routine to release the Direct 5105 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it 5106 * adds the DMA buffer the @phba data structure for the delayed release. 5107 * If reference to the Buffer Pointer List (BPL) is present, the 5108 * lpfc_els_free_bpl() routine is invoked to release the DMA memory 5109 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is 5110 * invoked to release the IOCB data structure back to @phba IOCBQ list. 5111 * 5112 * Return code 5113 * 0 - Success (currently, always return 0) 5114 **/ 5115 int 5116 lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) 5117 { 5118 struct lpfc_dmabuf *buf_ptr, *buf_ptr1; 5119 5120 /* The I/O iocb is complete. Clear the node and first dmbuf */ 5121 elsiocb->ndlp = NULL; 5122 5123 /* cmd_dmabuf = cmd, cmd_dmabuf->next = rsp, bpl_dmabuf = bpl */ 5124 if (elsiocb->cmd_dmabuf) { 5125 if (elsiocb->cmd_flag & LPFC_DELAY_MEM_FREE) { 5126 /* Firmware could still be in progress of DMAing 5127 * payload, so don't free data buffer till after 5128 * a hbeat. 5129 */ 5130 elsiocb->cmd_flag &= ~LPFC_DELAY_MEM_FREE; 5131 buf_ptr = elsiocb->cmd_dmabuf; 5132 elsiocb->cmd_dmabuf = NULL; 5133 if (buf_ptr) { 5134 buf_ptr1 = NULL; 5135 spin_lock_irq(&phba->hbalock); 5136 if (!list_empty(&buf_ptr->list)) { 5137 list_remove_head(&buf_ptr->list, 5138 buf_ptr1, struct lpfc_dmabuf, 5139 list); 5140 INIT_LIST_HEAD(&buf_ptr1->list); 5141 list_add_tail(&buf_ptr1->list, 5142 &phba->elsbuf); 5143 phba->elsbuf_cnt++; 5144 } 5145 INIT_LIST_HEAD(&buf_ptr->list); 5146 list_add_tail(&buf_ptr->list, &phba->elsbuf); 5147 phba->elsbuf_cnt++; 5148 spin_unlock_irq(&phba->hbalock); 5149 } 5150 } else { 5151 buf_ptr1 = elsiocb->cmd_dmabuf; 5152 lpfc_els_free_data(phba, buf_ptr1); 5153 elsiocb->cmd_dmabuf = NULL; 5154 } 5155 } 5156 5157 if (elsiocb->bpl_dmabuf) { 5158 buf_ptr = elsiocb->bpl_dmabuf; 5159 lpfc_els_free_bpl(phba, buf_ptr); 5160 elsiocb->bpl_dmabuf = NULL; 5161 } 5162 lpfc_sli_release_iocbq(phba, elsiocb); 5163 return 0; 5164 } 5165 5166 /** 5167 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response 5168 * @phba: pointer to lpfc hba data structure. 5169 * @cmdiocb: pointer to lpfc command iocb data structure. 5170 * @rspiocb: pointer to lpfc response iocb data structure. 5171 * 5172 * This routine is the completion callback function to the Logout (LOGO) 5173 * Accept (ACC) Response ELS command. This routine is invoked to indicate 5174 * the completion of the LOGO process. If the node has transitioned to NPR, 5175 * this routine unregisters the RPI if it is still registered. The 5176 * lpfc_els_free_iocb() is invoked to release the IOCB data structure. 5177 **/ 5178 static void 5179 lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 5180 struct lpfc_iocbq *rspiocb) 5181 { 5182 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 5183 struct lpfc_vport *vport = cmdiocb->vport; 5184 u32 ulp_status, ulp_word4; 5185 5186 ulp_status = get_job_ulpstatus(phba, rspiocb); 5187 ulp_word4 = get_job_word4(phba, rspiocb); 5188 5189 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5190 "ACC LOGO cmpl: status:x%x/x%x did:x%x", 5191 ulp_status, ulp_word4, ndlp->nlp_DID); 5192 /* ACC to LOGO completes to NPort <nlp_DID> */ 5193 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5194 "0109 ACC to LOGO completes to NPort x%x refcnt %d " 5195 "last els x%x Data: x%lx x%x x%x\n", 5196 ndlp->nlp_DID, kref_read(&ndlp->kref), 5197 ndlp->nlp_last_elscmd, ndlp->nlp_flag, ndlp->nlp_state, 5198 ndlp->nlp_rpi); 5199 5200 /* This clause allows the LOGO ACC to complete and free resources 5201 * for the Fabric Domain Controller. It does deliberately skip 5202 * the unreg_rpi and release rpi because some fabrics send RDP 5203 * requests after logging out from the initiator. 5204 */ 5205 if (ndlp->nlp_type & NLP_FABRIC && 5206 ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK)) 5207 goto out; 5208 5209 if (ndlp->nlp_state == NLP_STE_NPR_NODE) { 5210 if (test_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag)) 5211 lpfc_unreg_rpi(vport, ndlp); 5212 5213 /* If came from PRLO, then PRLO_ACC is done. 5214 * Start rediscovery now. 5215 */ 5216 if (ndlp->nlp_last_elscmd == ELS_CMD_PRLO) { 5217 set_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag); 5218 ndlp->nlp_prev_state = ndlp->nlp_state; 5219 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 5220 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 5221 } 5222 } 5223 5224 out: 5225 /* 5226 * The driver received a LOGO from the rport and has ACK'd it. 5227 * At this point, the driver is done so release the IOCB 5228 */ 5229 lpfc_els_free_iocb(phba, cmdiocb); 5230 lpfc_nlp_put(ndlp); 5231 } 5232 5233 /** 5234 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd 5235 * @phba: pointer to lpfc hba data structure. 5236 * @pmb: pointer to the driver internal queue element for mailbox command. 5237 * 5238 * This routine is the completion callback function for unregister default 5239 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases 5240 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and 5241 * decrements the ndlp reference count held for this completion callback 5242 * function. After that, it invokes the lpfc_drop_node to check 5243 * whether it is appropriate to release the node. 5244 **/ 5245 void 5246 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5247 { 5248 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; 5249 u32 mbx_flag = pmb->mbox_flag; 5250 u32 mbx_cmd = pmb->u.mb.mbxCommand; 5251 5252 if (ndlp) { 5253 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 5254 "0006 rpi x%x DID:%x flg:%lx %d x%px " 5255 "mbx_cmd x%x mbx_flag x%x x%px\n", 5256 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5257 kref_read(&ndlp->kref), ndlp, mbx_cmd, 5258 mbx_flag, pmb); 5259 5260 /* This ends the default/temporary RPI cleanup logic for this 5261 * ndlp and the node and rpi needs to be released. Free the rpi 5262 * first on an UNREG_LOGIN and then release the final 5263 * references. 5264 */ 5265 clear_bit(NLP_REG_LOGIN_SEND, &ndlp->nlp_flag); 5266 if (mbx_cmd == MBX_UNREG_LOGIN) 5267 clear_bit(NLP_UNREG_INP, &ndlp->nlp_flag); 5268 lpfc_nlp_put(ndlp); 5269 lpfc_drop_node(ndlp->vport, ndlp); 5270 } 5271 5272 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 5273 } 5274 5275 /** 5276 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd 5277 * @phba: pointer to lpfc hba data structure. 5278 * @cmdiocb: pointer to lpfc command iocb data structure. 5279 * @rspiocb: pointer to lpfc response iocb data structure. 5280 * 5281 * This routine is the completion callback function for ELS Response IOCB 5282 * command. In normal case, this callback function just properly sets the 5283 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference 5284 * field in the command IOCB is not NULL, the referred mailbox command will 5285 * be send out, and then invokes the lpfc_els_free_iocb() routine to release 5286 * the IOCB. 5287 **/ 5288 static void 5289 lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 5290 struct lpfc_iocbq *rspiocb) 5291 { 5292 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 5293 struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL; 5294 struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL; 5295 IOCB_t *irsp; 5296 LPFC_MBOXQ_t *mbox = NULL; 5297 u32 ulp_status, ulp_word4, tmo, did, iotag; 5298 5299 if (!vport) { 5300 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, 5301 "3177 null vport in ELS rsp\n"); 5302 goto out; 5303 } 5304 if (cmdiocb->context_un.mbox) 5305 mbox = cmdiocb->context_un.mbox; 5306 5307 ulp_status = get_job_ulpstatus(phba, rspiocb); 5308 ulp_word4 = get_job_word4(phba, rspiocb); 5309 did = get_job_els_rsp64_did(phba, cmdiocb); 5310 5311 if (phba->sli_rev == LPFC_SLI_REV4) { 5312 tmo = get_wqe_tmo(cmdiocb); 5313 iotag = get_wqe_reqtag(cmdiocb); 5314 } else { 5315 irsp = &rspiocb->iocb; 5316 tmo = irsp->ulpTimeout; 5317 iotag = irsp->ulpIoTag; 5318 } 5319 5320 /* Check to see if link went down during discovery */ 5321 if (!ndlp || lpfc_els_chk_latt(vport)) { 5322 if (mbox) 5323 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 5324 goto out; 5325 } 5326 5327 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5328 "ELS rsp cmpl: status:x%x/x%x did:x%x", 5329 ulp_status, ulp_word4, did); 5330 /* ELS response tag <ulpIoTag> completes */ 5331 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5332 "0110 ELS response tag x%x completes " 5333 "Data: x%x x%x x%x x%x x%lx x%x x%x x%x %p %p\n", 5334 iotag, ulp_status, ulp_word4, tmo, 5335 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5336 ndlp->nlp_rpi, kref_read(&ndlp->kref), mbox, ndlp); 5337 if (mbox) { 5338 if (ulp_status == 0 && 5339 test_bit(NLP_ACC_REGLOGIN, &ndlp->nlp_flag)) { 5340 if (!lpfc_unreg_rpi(vport, ndlp) && 5341 !test_bit(FC_PT2PT, &vport->fc_flag)) { 5342 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5343 ndlp->nlp_state == 5344 NLP_STE_REG_LOGIN_ISSUE) { 5345 lpfc_printf_vlog(vport, KERN_INFO, 5346 LOG_DISCOVERY, 5347 "0314 PLOGI recov " 5348 "DID x%x " 5349 "Data: x%x x%x x%lx\n", 5350 ndlp->nlp_DID, 5351 ndlp->nlp_state, 5352 ndlp->nlp_rpi, 5353 ndlp->nlp_flag); 5354 goto out_free_mbox; 5355 } 5356 } 5357 5358 /* Increment reference count to ndlp to hold the 5359 * reference to ndlp for the callback function. 5360 */ 5361 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 5362 if (!mbox->ctx_ndlp) 5363 goto out_free_mbox; 5364 5365 mbox->vport = vport; 5366 if (test_bit(NLP_RM_DFLT_RPI, &ndlp->nlp_flag)) { 5367 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 5368 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 5369 } else { 5370 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 5371 ndlp->nlp_prev_state = ndlp->nlp_state; 5372 lpfc_nlp_set_state(vport, ndlp, 5373 NLP_STE_REG_LOGIN_ISSUE); 5374 } 5375 5376 set_bit(NLP_REG_LOGIN_SEND, &ndlp->nlp_flag); 5377 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 5378 != MBX_NOT_FINISHED) 5379 goto out; 5380 5381 /* Decrement the ndlp reference count we 5382 * set for this failed mailbox command. 5383 */ 5384 lpfc_nlp_put(ndlp); 5385 clear_bit(NLP_REG_LOGIN_SEND, &ndlp->nlp_flag); 5386 5387 /* ELS rsp: Cannot issue reg_login for <NPortid> */ 5388 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5389 "0138 ELS rsp: Cannot issue reg_login for x%x " 5390 "Data: x%lx x%x x%x\n", 5391 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5392 ndlp->nlp_rpi); 5393 } 5394 out_free_mbox: 5395 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 5396 } 5397 out: 5398 if (ndlp && shost) { 5399 if (mbox) 5400 clear_bit(NLP_ACC_REGLOGIN, &ndlp->nlp_flag); 5401 clear_bit(NLP_RM_DFLT_RPI, &ndlp->nlp_flag); 5402 } 5403 5404 /* An SLI4 NPIV instance wants to drop the node at this point under 5405 * these conditions because it doesn't need the login. 5406 */ 5407 if (phba->sli_rev == LPFC_SLI_REV4 && 5408 vport && vport->port_type == LPFC_NPIV_PORT && 5409 !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) { 5410 if (ndlp->nlp_state != NLP_STE_PLOGI_ISSUE && 5411 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE && 5412 ndlp->nlp_state != NLP_STE_PRLI_ISSUE) { 5413 /* Drop ndlp if there is no planned or outstanding 5414 * issued PRLI. 5415 * 5416 * In cases when the ndlp is acting as both an initiator 5417 * and target function, let our issued PRLI determine 5418 * the final ndlp kref drop. 5419 */ 5420 lpfc_drop_node(vport, ndlp); 5421 } 5422 } 5423 5424 /* Release the originating I/O reference. */ 5425 lpfc_els_free_iocb(phba, cmdiocb); 5426 lpfc_nlp_put(ndlp); 5427 return; 5428 } 5429 5430 /** 5431 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command 5432 * @vport: pointer to a host virtual N_Port data structure. 5433 * @flag: the els command code to be accepted. 5434 * @oldiocb: pointer to the original lpfc command iocb data structure. 5435 * @ndlp: pointer to a node-list data structure. 5436 * @mbox: pointer to the driver internal queue element for mailbox command. 5437 * 5438 * This routine prepares and issues an Accept (ACC) response IOCB 5439 * command. It uses the @flag to properly set up the IOCB field for the 5440 * specific ACC response command to be issued and invokes the 5441 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a 5442 * @mbox pointer is passed in, it will be put into the context_un.mbox 5443 * field of the IOCB for the completion callback function to issue the 5444 * mailbox command to the HBA later when callback is invoked. 5445 * 5446 * Note that the ndlp reference count will be incremented by 1 for holding the 5447 * ndlp and the reference to ndlp will be stored into the ndlp field of 5448 * the IOCB for the completion callback function to the corresponding 5449 * response ELS IOCB command. 5450 * 5451 * Return code 5452 * 0 - Successfully issued acc response 5453 * 1 - Failed to issue acc response 5454 **/ 5455 int 5456 lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, 5457 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, 5458 LPFC_MBOXQ_t *mbox) 5459 { 5460 struct lpfc_hba *phba = vport->phba; 5461 IOCB_t *icmd; 5462 IOCB_t *oldcmd; 5463 union lpfc_wqe128 *wqe; 5464 union lpfc_wqe128 *oldwqe = &oldiocb->wqe; 5465 struct lpfc_iocbq *elsiocb; 5466 uint8_t *pcmd; 5467 struct serv_parm *sp; 5468 uint16_t cmdsize; 5469 int rc; 5470 ELS_PKT *els_pkt_ptr; 5471 struct fc_els_rdf_resp *rdf_resp; 5472 5473 switch (flag) { 5474 case ELS_CMD_ACC: 5475 cmdsize = sizeof(uint32_t); 5476 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5477 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5478 if (!elsiocb) { 5479 clear_bit(NLP_LOGO_ACC, &ndlp->nlp_flag); 5480 return 1; 5481 } 5482 5483 if (phba->sli_rev == LPFC_SLI_REV4) { 5484 wqe = &elsiocb->wqe; 5485 /* XRI / rx_id */ 5486 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5487 bf_get(wqe_ctxt_tag, 5488 &oldwqe->xmit_els_rsp.wqe_com)); 5489 5490 /* oxid */ 5491 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5492 bf_get(wqe_rcvoxid, 5493 &oldwqe->xmit_els_rsp.wqe_com)); 5494 } else { 5495 icmd = &elsiocb->iocb; 5496 oldcmd = &oldiocb->iocb; 5497 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5498 icmd->unsli3.rcvsli3.ox_id = 5499 oldcmd->unsli3.rcvsli3.ox_id; 5500 } 5501 5502 pcmd = elsiocb->cmd_dmabuf->virt; 5503 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 5504 pcmd += sizeof(uint32_t); 5505 5506 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5507 "Issue ACC: did:x%x flg:x%lx", 5508 ndlp->nlp_DID, ndlp->nlp_flag, 0); 5509 break; 5510 case ELS_CMD_FLOGI: 5511 case ELS_CMD_PLOGI: 5512 cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); 5513 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5514 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5515 if (!elsiocb) 5516 return 1; 5517 5518 if (phba->sli_rev == LPFC_SLI_REV4) { 5519 wqe = &elsiocb->wqe; 5520 /* XRI / rx_id */ 5521 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5522 bf_get(wqe_ctxt_tag, 5523 &oldwqe->xmit_els_rsp.wqe_com)); 5524 5525 /* oxid */ 5526 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5527 bf_get(wqe_rcvoxid, 5528 &oldwqe->xmit_els_rsp.wqe_com)); 5529 } else { 5530 icmd = &elsiocb->iocb; 5531 oldcmd = &oldiocb->iocb; 5532 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5533 icmd->unsli3.rcvsli3.ox_id = 5534 oldcmd->unsli3.rcvsli3.ox_id; 5535 } 5536 5537 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 5538 5539 if (mbox) 5540 elsiocb->context_un.mbox = mbox; 5541 5542 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 5543 pcmd += sizeof(uint32_t); 5544 sp = (struct serv_parm *)pcmd; 5545 5546 if (flag == ELS_CMD_FLOGI) { 5547 /* Copy the received service parameters back */ 5548 memcpy(sp, &phba->fc_fabparam, 5549 sizeof(struct serv_parm)); 5550 5551 /* Clear the F_Port bit */ 5552 sp->cmn.fPort = 0; 5553 5554 /* Mark all class service parameters as invalid */ 5555 sp->cls1.classValid = 0; 5556 sp->cls2.classValid = 0; 5557 sp->cls3.classValid = 0; 5558 sp->cls4.classValid = 0; 5559 5560 /* Copy our worldwide names */ 5561 memcpy(&sp->portName, &vport->fc_sparam.portName, 5562 sizeof(struct lpfc_name)); 5563 memcpy(&sp->nodeName, &vport->fc_sparam.nodeName, 5564 sizeof(struct lpfc_name)); 5565 } else { 5566 memcpy(pcmd, &vport->fc_sparam, 5567 sizeof(struct serv_parm)); 5568 5569 sp->cmn.valid_vendor_ver_level = 0; 5570 memset(sp->un.vendorVersion, 0, 5571 sizeof(sp->un.vendorVersion)); 5572 sp->cmn.bbRcvSizeMsb &= 0xF; 5573 5574 /* If our firmware supports this feature, convey that 5575 * info to the target using the vendor specific field. 5576 */ 5577 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) { 5578 sp->cmn.valid_vendor_ver_level = 1; 5579 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID); 5580 sp->un.vv.flags = 5581 cpu_to_be32(LPFC_VV_SUPPRESS_RSP); 5582 } 5583 } 5584 5585 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5586 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%lx", 5587 ndlp->nlp_DID, ndlp->nlp_flag, 0); 5588 break; 5589 case ELS_CMD_PRLO: 5590 cmdsize = sizeof(uint32_t) + sizeof(PRLO); 5591 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5592 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); 5593 if (!elsiocb) 5594 return 1; 5595 5596 if (phba->sli_rev == LPFC_SLI_REV4) { 5597 wqe = &elsiocb->wqe; 5598 /* XRI / rx_id */ 5599 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5600 bf_get(wqe_ctxt_tag, 5601 &oldwqe->xmit_els_rsp.wqe_com)); 5602 5603 /* oxid */ 5604 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5605 bf_get(wqe_rcvoxid, 5606 &oldwqe->xmit_els_rsp.wqe_com)); 5607 } else { 5608 icmd = &elsiocb->iocb; 5609 oldcmd = &oldiocb->iocb; 5610 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5611 icmd->unsli3.rcvsli3.ox_id = 5612 oldcmd->unsli3.rcvsli3.ox_id; 5613 } 5614 5615 pcmd = (u8 *) elsiocb->cmd_dmabuf->virt; 5616 5617 memcpy(pcmd, oldiocb->cmd_dmabuf->virt, 5618 sizeof(uint32_t) + sizeof(PRLO)); 5619 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; 5620 els_pkt_ptr = (ELS_PKT *) pcmd; 5621 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; 5622 5623 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5624 "Issue ACC PRLO: did:x%x flg:x%lx", 5625 ndlp->nlp_DID, ndlp->nlp_flag, 0); 5626 break; 5627 case ELS_CMD_RDF: 5628 cmdsize = sizeof(*rdf_resp); 5629 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, 5630 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5631 if (!elsiocb) 5632 return 1; 5633 5634 if (phba->sli_rev == LPFC_SLI_REV4) { 5635 wqe = &elsiocb->wqe; 5636 /* XRI / rx_id */ 5637 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 5638 bf_get(wqe_ctxt_tag, 5639 &oldwqe->xmit_els_rsp.wqe_com)); 5640 5641 /* oxid */ 5642 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5643 bf_get(wqe_rcvoxid, 5644 &oldwqe->xmit_els_rsp.wqe_com)); 5645 } else { 5646 icmd = &elsiocb->iocb; 5647 oldcmd = &oldiocb->iocb; 5648 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5649 icmd->unsli3.rcvsli3.ox_id = 5650 oldcmd->unsli3.rcvsli3.ox_id; 5651 } 5652 5653 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 5654 rdf_resp = (struct fc_els_rdf_resp *)pcmd; 5655 memset(rdf_resp, 0, sizeof(*rdf_resp)); 5656 rdf_resp->acc_hdr.la_cmd = ELS_LS_ACC; 5657 5658 /* FC-LS-5 specifies desc_list_len shall be set to 12 */ 5659 rdf_resp->desc_list_len = cpu_to_be32(12); 5660 5661 /* FC-LS-5 specifies LS REQ Information descriptor */ 5662 rdf_resp->lsri.desc_tag = cpu_to_be32(1); 5663 rdf_resp->lsri.desc_len = cpu_to_be32(sizeof(u32)); 5664 rdf_resp->lsri.rqst_w0.cmd = ELS_RDF; 5665 break; 5666 default: 5667 return 1; 5668 } 5669 if (test_bit(NLP_LOGO_ACC, &ndlp->nlp_flag)) { 5670 if (!test_bit(NLP_RPI_REGISTERED, &ndlp->nlp_flag) && 5671 !test_bit(NLP_REG_LOGIN_SEND, &ndlp->nlp_flag)) 5672 clear_bit(NLP_LOGO_ACC, &ndlp->nlp_flag); 5673 elsiocb->cmd_cmpl = lpfc_cmpl_els_logo_acc; 5674 } else { 5675 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 5676 } 5677 5678 phba->fc_stat.elsXmitACC++; 5679 elsiocb->ndlp = lpfc_nlp_get(ndlp); 5680 if (!elsiocb->ndlp) { 5681 lpfc_els_free_iocb(phba, elsiocb); 5682 return 1; 5683 } 5684 5685 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 5686 if (rc == IOCB_ERROR) { 5687 lpfc_els_free_iocb(phba, elsiocb); 5688 lpfc_nlp_put(ndlp); 5689 return 1; 5690 } 5691 5692 /* Xmit ELS ACC response tag <ulpIoTag> */ 5693 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5694 "0128 Xmit ELS ACC response Status: x%x, IoTag: x%x, " 5695 "XRI: x%x, DID: x%x, nlp_flag: x%lx nlp_state: x%x " 5696 "RPI: x%x, fc_flag x%lx refcnt %d\n", 5697 rc, elsiocb->iotag, elsiocb->sli4_xritag, 5698 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5699 ndlp->nlp_rpi, vport->fc_flag, kref_read(&ndlp->kref)); 5700 return 0; 5701 } 5702 5703 /** 5704 * lpfc_els_rsp_reject - Prepare and issue a rjt response iocb command 5705 * @vport: pointer to a virtual N_Port data structure. 5706 * @rejectError: reject response to issue 5707 * @oldiocb: pointer to the original lpfc command iocb data structure. 5708 * @ndlp: pointer to a node-list data structure. 5709 * @mbox: pointer to the driver internal queue element for mailbox command. 5710 * 5711 * This routine prepares and issue an Reject (RJT) response IOCB 5712 * command. If a @mbox pointer is passed in, it will be put into the 5713 * context_un.mbox field of the IOCB for the completion callback function 5714 * to issue to the HBA later. 5715 * 5716 * Note that the ndlp reference count will be incremented by 1 for holding the 5717 * ndlp and the reference to ndlp will be stored into the ndlp field of 5718 * the IOCB for the completion callback function to the reject response 5719 * ELS IOCB command. 5720 * 5721 * Return code 5722 * 0 - Successfully issued reject response 5723 * 1 - Failed to issue reject response 5724 **/ 5725 int 5726 lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, 5727 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, 5728 LPFC_MBOXQ_t *mbox) 5729 { 5730 int rc; 5731 struct lpfc_hba *phba = vport->phba; 5732 IOCB_t *icmd; 5733 IOCB_t *oldcmd; 5734 union lpfc_wqe128 *wqe; 5735 struct lpfc_iocbq *elsiocb; 5736 uint8_t *pcmd; 5737 uint16_t cmdsize; 5738 5739 cmdsize = 2 * sizeof(uint32_t); 5740 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 5741 ndlp->nlp_DID, ELS_CMD_LS_RJT); 5742 if (!elsiocb) 5743 return 1; 5744 5745 if (phba->sli_rev == LPFC_SLI_REV4) { 5746 wqe = &elsiocb->wqe; 5747 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 5748 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 5749 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5750 get_job_rcvoxid(phba, oldiocb)); 5751 } else { 5752 icmd = &elsiocb->iocb; 5753 oldcmd = &oldiocb->iocb; 5754 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5755 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; 5756 } 5757 5758 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 5759 5760 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; 5761 pcmd += sizeof(uint32_t); 5762 *((uint32_t *) (pcmd)) = rejectError; 5763 5764 if (mbox) 5765 elsiocb->context_un.mbox = mbox; 5766 5767 /* Xmit ELS RJT <err> response tag <ulpIoTag> */ 5768 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5769 "0129 Xmit ELS RJT x%x response tag x%x " 5770 "xri x%x, did x%x, nlp_flag x%lx, nlp_state x%x, " 5771 "rpi x%x\n", 5772 rejectError, elsiocb->iotag, 5773 get_job_ulpcontext(phba, elsiocb), ndlp->nlp_DID, 5774 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); 5775 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5776 "Issue LS_RJT: did:x%x flg:x%lx err:x%x", 5777 ndlp->nlp_DID, ndlp->nlp_flag, rejectError); 5778 5779 phba->fc_stat.elsXmitLSRJT++; 5780 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 5781 elsiocb->ndlp = lpfc_nlp_get(ndlp); 5782 if (!elsiocb->ndlp) { 5783 lpfc_els_free_iocb(phba, elsiocb); 5784 return 1; 5785 } 5786 5787 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 5788 if (rc == IOCB_ERROR) { 5789 lpfc_els_free_iocb(phba, elsiocb); 5790 lpfc_nlp_put(ndlp); 5791 return 1; 5792 } 5793 5794 return 0; 5795 } 5796 5797 /** 5798 * lpfc_issue_els_edc_rsp - Exchange Diagnostic Capabilities with the fabric. 5799 * @vport: pointer to a host virtual N_Port data structure. 5800 * @cmdiocb: pointer to the original lpfc command iocb data structure. 5801 * @ndlp: NPort to where rsp is directed 5802 * 5803 * This routine issues an EDC ACC RSP to the F-Port Controller to communicate 5804 * this N_Port's support of hardware signals in its Congestion 5805 * Capabilities Descriptor. 5806 * 5807 * Return code 5808 * 0 - Successfully issued edc rsp command 5809 * 1 - Failed to issue edc rsp command 5810 **/ 5811 static int 5812 lpfc_issue_els_edc_rsp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 5813 struct lpfc_nodelist *ndlp) 5814 { 5815 struct lpfc_hba *phba = vport->phba; 5816 struct fc_els_edc_resp *edc_rsp; 5817 struct fc_tlv_desc *tlv; 5818 struct lpfc_iocbq *elsiocb; 5819 IOCB_t *icmd, *cmd; 5820 union lpfc_wqe128 *wqe; 5821 u32 cgn_desc_size, lft_desc_size; 5822 u16 cmdsize; 5823 uint8_t *pcmd; 5824 int rc; 5825 5826 cmdsize = sizeof(struct fc_els_edc_resp); 5827 cgn_desc_size = sizeof(struct fc_diag_cg_sig_desc); 5828 lft_desc_size = (lpfc_link_is_lds_capable(phba)) ? 5829 sizeof(struct fc_diag_lnkflt_desc) : 0; 5830 cmdsize += cgn_desc_size + lft_desc_size; 5831 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, cmdiocb->retry, 5832 ndlp, ndlp->nlp_DID, ELS_CMD_ACC); 5833 if (!elsiocb) 5834 return 1; 5835 5836 if (phba->sli_rev == LPFC_SLI_REV4) { 5837 wqe = &elsiocb->wqe; 5838 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 5839 get_job_ulpcontext(phba, cmdiocb)); /* Xri / rx_id */ 5840 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5841 get_job_rcvoxid(phba, cmdiocb)); 5842 } else { 5843 icmd = &elsiocb->iocb; 5844 cmd = &cmdiocb->iocb; 5845 icmd->ulpContext = cmd->ulpContext; /* Xri / rx_id */ 5846 icmd->unsli3.rcvsli3.ox_id = cmd->unsli3.rcvsli3.ox_id; 5847 } 5848 5849 pcmd = elsiocb->cmd_dmabuf->virt; 5850 memset(pcmd, 0, cmdsize); 5851 5852 edc_rsp = (struct fc_els_edc_resp *)pcmd; 5853 edc_rsp->acc_hdr.la_cmd = ELS_LS_ACC; 5854 edc_rsp->desc_list_len = cpu_to_be32(sizeof(struct fc_els_lsri_desc) + 5855 cgn_desc_size + lft_desc_size); 5856 edc_rsp->lsri.desc_tag = cpu_to_be32(ELS_DTAG_LS_REQ_INFO); 5857 edc_rsp->lsri.desc_len = cpu_to_be32( 5858 FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_els_lsri_desc)); 5859 edc_rsp->lsri.rqst_w0.cmd = ELS_EDC; 5860 tlv = edc_rsp->desc; 5861 lpfc_format_edc_cgn_desc(phba, tlv); 5862 tlv = fc_tlv_next_desc(tlv); 5863 if (lft_desc_size) 5864 lpfc_format_edc_lft_desc(phba, tlv); 5865 5866 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5867 "Issue EDC ACC: did:x%x flg:x%lx refcnt %d", 5868 ndlp->nlp_DID, ndlp->nlp_flag, 5869 kref_read(&ndlp->kref)); 5870 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 5871 5872 phba->fc_stat.elsXmitACC++; 5873 elsiocb->ndlp = lpfc_nlp_get(ndlp); 5874 if (!elsiocb->ndlp) { 5875 lpfc_els_free_iocb(phba, elsiocb); 5876 return 1; 5877 } 5878 5879 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 5880 if (rc == IOCB_ERROR) { 5881 lpfc_els_free_iocb(phba, elsiocb); 5882 lpfc_nlp_put(ndlp); 5883 return 1; 5884 } 5885 5886 /* Xmit ELS ACC response tag <ulpIoTag> */ 5887 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5888 "0152 Xmit EDC ACC response Status: x%x, IoTag: x%x, " 5889 "XRI: x%x, DID: x%x, nlp_flag: x%lx nlp_state: x%x " 5890 "RPI: x%x, fc_flag x%lx\n", 5891 rc, elsiocb->iotag, elsiocb->sli4_xritag, 5892 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5893 ndlp->nlp_rpi, vport->fc_flag); 5894 5895 return 0; 5896 } 5897 5898 /** 5899 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd 5900 * @vport: pointer to a virtual N_Port data structure. 5901 * @oldiocb: pointer to the original lpfc command iocb data structure. 5902 * @ndlp: pointer to a node-list data structure. 5903 * 5904 * This routine prepares and issues an Accept (ACC) response to Address 5905 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB 5906 * and invokes the lpfc_sli_issue_iocb() routine to send out the command. 5907 * 5908 * Note that the ndlp reference count will be incremented by 1 for holding the 5909 * ndlp and the reference to ndlp will be stored into the ndlp field of 5910 * the IOCB for the completion callback function to the ADISC Accept response 5911 * ELS IOCB command. 5912 * 5913 * Return code 5914 * 0 - Successfully issued acc adisc response 5915 * 1 - Failed to issue adisc acc response 5916 **/ 5917 int 5918 lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, 5919 struct lpfc_nodelist *ndlp) 5920 { 5921 struct lpfc_hba *phba = vport->phba; 5922 ADISC *ap; 5923 IOCB_t *icmd, *oldcmd; 5924 union lpfc_wqe128 *wqe; 5925 struct lpfc_iocbq *elsiocb; 5926 uint8_t *pcmd; 5927 uint16_t cmdsize; 5928 int rc; 5929 u32 ulp_context; 5930 5931 cmdsize = sizeof(uint32_t) + sizeof(ADISC); 5932 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 5933 ndlp->nlp_DID, ELS_CMD_ACC); 5934 if (!elsiocb) 5935 return 1; 5936 5937 if (phba->sli_rev == LPFC_SLI_REV4) { 5938 wqe = &elsiocb->wqe; 5939 /* XRI / rx_id */ 5940 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 5941 get_job_ulpcontext(phba, oldiocb)); 5942 ulp_context = get_job_ulpcontext(phba, elsiocb); 5943 /* oxid */ 5944 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 5945 get_job_rcvoxid(phba, oldiocb)); 5946 } else { 5947 icmd = &elsiocb->iocb; 5948 oldcmd = &oldiocb->iocb; 5949 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 5950 ulp_context = elsiocb->iocb.ulpContext; 5951 icmd->unsli3.rcvsli3.ox_id = 5952 oldcmd->unsli3.rcvsli3.ox_id; 5953 } 5954 5955 /* Xmit ADISC ACC response tag <ulpIoTag> */ 5956 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 5957 "0130 Xmit ADISC ACC response iotag x%x xri: " 5958 "x%x, did x%x, nlp_flag x%lx, nlp_state x%x rpi x%x\n", 5959 elsiocb->iotag, ulp_context, 5960 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 5961 ndlp->nlp_rpi); 5962 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 5963 5964 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 5965 pcmd += sizeof(uint32_t); 5966 5967 ap = (ADISC *) (pcmd); 5968 ap->hardAL_PA = phba->fc_pref_ALPA; 5969 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); 5970 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 5971 ap->DID = be32_to_cpu(vport->fc_myDID); 5972 5973 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 5974 "Issue ACC ADISC: did:x%x flg:x%lx refcnt %d", 5975 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 5976 5977 phba->fc_stat.elsXmitACC++; 5978 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 5979 elsiocb->ndlp = lpfc_nlp_get(ndlp); 5980 if (!elsiocb->ndlp) { 5981 lpfc_els_free_iocb(phba, elsiocb); 5982 return 1; 5983 } 5984 5985 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 5986 if (rc == IOCB_ERROR) { 5987 lpfc_els_free_iocb(phba, elsiocb); 5988 lpfc_nlp_put(ndlp); 5989 return 1; 5990 } 5991 5992 return 0; 5993 } 5994 5995 /** 5996 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd 5997 * @vport: pointer to a virtual N_Port data structure. 5998 * @oldiocb: pointer to the original lpfc command iocb data structure. 5999 * @ndlp: pointer to a node-list data structure. 6000 * 6001 * This routine prepares and issues an Accept (ACC) response to Process 6002 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB 6003 * and invokes the lpfc_sli_issue_iocb() routine to send out the command. 6004 * 6005 * Note that the ndlp reference count will be incremented by 1 for holding the 6006 * ndlp and the reference to ndlp will be stored into the ndlp field of 6007 * the IOCB for the completion callback function to the PRLI Accept response 6008 * ELS IOCB command. 6009 * 6010 * Return code 6011 * 0 - Successfully issued acc prli response 6012 * 1 - Failed to issue acc prli response 6013 **/ 6014 int 6015 lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, 6016 struct lpfc_nodelist *ndlp) 6017 { 6018 struct lpfc_hba *phba = vport->phba; 6019 PRLI *npr; 6020 struct lpfc_nvme_prli *npr_nvme; 6021 lpfc_vpd_t *vpd; 6022 IOCB_t *icmd; 6023 IOCB_t *oldcmd; 6024 union lpfc_wqe128 *wqe; 6025 struct lpfc_iocbq *elsiocb; 6026 uint8_t *pcmd; 6027 uint16_t cmdsize; 6028 uint32_t prli_fc4_req, *req_payload; 6029 struct lpfc_dmabuf *req_buf; 6030 int rc; 6031 u32 elsrspcmd, ulp_context; 6032 6033 /* Need the incoming PRLI payload to determine if the ACC is for an 6034 * FC4 or NVME PRLI type. The PRLI type is at word 1. 6035 */ 6036 req_buf = oldiocb->cmd_dmabuf; 6037 req_payload = (((uint32_t *)req_buf->virt) + 1); 6038 6039 /* PRLI type payload is at byte 3 for FCP or NVME. */ 6040 prli_fc4_req = be32_to_cpu(*req_payload); 6041 prli_fc4_req = (prli_fc4_req >> 24) & 0xff; 6042 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6043 "6127 PRLI_ACC: Req Type x%x, Word1 x%08x\n", 6044 prli_fc4_req, *((uint32_t *)req_payload)); 6045 6046 if (prli_fc4_req == PRLI_FCP_TYPE) { 6047 cmdsize = sizeof(uint32_t) + sizeof(PRLI); 6048 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); 6049 } else if (prli_fc4_req == PRLI_NVME_TYPE) { 6050 cmdsize = sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli); 6051 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_NVMEPRLI & ~ELS_RSP_MASK)); 6052 } else { 6053 return 1; 6054 } 6055 6056 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 6057 ndlp->nlp_DID, elsrspcmd); 6058 if (!elsiocb) 6059 return 1; 6060 6061 if (phba->sli_rev == LPFC_SLI_REV4) { 6062 wqe = &elsiocb->wqe; 6063 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6064 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 6065 ulp_context = get_job_ulpcontext(phba, elsiocb); 6066 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6067 get_job_rcvoxid(phba, oldiocb)); 6068 } else { 6069 icmd = &elsiocb->iocb; 6070 oldcmd = &oldiocb->iocb; 6071 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6072 ulp_context = elsiocb->iocb.ulpContext; 6073 icmd->unsli3.rcvsli3.ox_id = 6074 oldcmd->unsli3.rcvsli3.ox_id; 6075 } 6076 6077 /* Xmit PRLI ACC response tag <ulpIoTag> */ 6078 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6079 "0131 Xmit PRLI ACC response tag x%x xri x%x, " 6080 "did x%x, nlp_flag x%lx, nlp_state x%x, rpi x%x\n", 6081 elsiocb->iotag, ulp_context, 6082 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 6083 ndlp->nlp_rpi); 6084 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6085 memset(pcmd, 0, cmdsize); 6086 6087 *((uint32_t *)(pcmd)) = elsrspcmd; 6088 pcmd += sizeof(uint32_t); 6089 6090 /* For PRLI, remainder of payload is PRLI parameter page */ 6091 vpd = &phba->vpd; 6092 6093 if (prli_fc4_req == PRLI_FCP_TYPE) { 6094 /* 6095 * If the remote port is a target and our firmware version 6096 * is 3.20 or later, set the following bits for FC-TAPE 6097 * support. 6098 */ 6099 npr = (PRLI *) pcmd; 6100 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 6101 (vpd->rev.feaLevelHigh >= 0x02)) { 6102 npr->ConfmComplAllowed = 1; 6103 npr->Retry = 1; 6104 npr->TaskRetryIdReq = 1; 6105 } 6106 npr->acceptRspCode = PRLI_REQ_EXECUTED; 6107 6108 /* Set image pair for complementary pairs only. */ 6109 if (ndlp->nlp_type & NLP_FCP_TARGET) 6110 npr->estabImagePair = 1; 6111 else 6112 npr->estabImagePair = 0; 6113 npr->readXferRdyDis = 1; 6114 npr->ConfmComplAllowed = 1; 6115 npr->prliType = PRLI_FCP_TYPE; 6116 npr->initiatorFunc = 1; 6117 6118 /* Xmit PRLI ACC response tag <ulpIoTag> */ 6119 lpfc_printf_vlog(vport, KERN_INFO, 6120 LOG_ELS | LOG_NODE | LOG_DISCOVERY, 6121 "6014 FCP issue PRLI ACC imgpair %d " 6122 "retry %d task %d\n", 6123 npr->estabImagePair, 6124 npr->Retry, npr->TaskRetryIdReq); 6125 6126 } else if (prli_fc4_req == PRLI_NVME_TYPE) { 6127 /* Respond with an NVME PRLI Type */ 6128 npr_nvme = (struct lpfc_nvme_prli *) pcmd; 6129 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE); 6130 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */ 6131 bf_set(prli_acc_rsp_code, npr_nvme, PRLI_REQ_EXECUTED); 6132 if (phba->nvmet_support) { 6133 bf_set(prli_tgt, npr_nvme, 1); 6134 bf_set(prli_disc, npr_nvme, 1); 6135 if (phba->cfg_nvme_enable_fb) { 6136 bf_set(prli_fba, npr_nvme, 1); 6137 6138 /* TBD. Target mode needs to post buffers 6139 * that support the configured first burst 6140 * byte size. 6141 */ 6142 bf_set(prli_fb_sz, npr_nvme, 6143 phba->cfg_nvmet_fb_size); 6144 } 6145 } else { 6146 bf_set(prli_init, npr_nvme, 1); 6147 } 6148 6149 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 6150 "6015 NVME issue PRLI ACC word1 x%08x " 6151 "word4 x%08x word5 x%08x flag x%lx, " 6152 "fcp_info x%x nlp_type x%x\n", 6153 npr_nvme->word1, npr_nvme->word4, 6154 npr_nvme->word5, ndlp->nlp_flag, 6155 ndlp->nlp_fcp_info, ndlp->nlp_type); 6156 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1); 6157 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4); 6158 npr_nvme->word5 = cpu_to_be32(npr_nvme->word5); 6159 } else 6160 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 6161 "6128 Unknown FC_TYPE x%x x%x ndlp x%06x\n", 6162 prli_fc4_req, ndlp->nlp_fc4_type, 6163 ndlp->nlp_DID); 6164 6165 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6166 "Issue ACC PRLI: did:x%x flg:x%lx", 6167 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6168 6169 phba->fc_stat.elsXmitACC++; 6170 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6171 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6172 if (!elsiocb->ndlp) { 6173 lpfc_els_free_iocb(phba, elsiocb); 6174 return 1; 6175 } 6176 6177 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6178 if (rc == IOCB_ERROR) { 6179 lpfc_els_free_iocb(phba, elsiocb); 6180 lpfc_nlp_put(ndlp); 6181 return 1; 6182 } 6183 6184 return 0; 6185 } 6186 6187 /** 6188 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command 6189 * @vport: pointer to a virtual N_Port data structure. 6190 * @format: rnid command format. 6191 * @oldiocb: pointer to the original lpfc command iocb data structure. 6192 * @ndlp: pointer to a node-list data structure. 6193 * 6194 * This routine issues a Request Node Identification Data (RNID) Accept 6195 * (ACC) response. It constructs the RNID ACC response command according to 6196 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to 6197 * issue the response. 6198 * 6199 * Note that the ndlp reference count will be incremented by 1 for holding the 6200 * ndlp and the reference to ndlp will be stored into the ndlp field of 6201 * the IOCB for the completion callback function. 6202 * 6203 * Return code 6204 * 0 - Successfully issued acc rnid response 6205 * 1 - Failed to issue acc rnid response 6206 **/ 6207 static int 6208 lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, 6209 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) 6210 { 6211 struct lpfc_hba *phba = vport->phba; 6212 RNID *rn; 6213 IOCB_t *icmd, *oldcmd; 6214 union lpfc_wqe128 *wqe; 6215 struct lpfc_iocbq *elsiocb; 6216 uint8_t *pcmd; 6217 uint16_t cmdsize; 6218 int rc; 6219 u32 ulp_context; 6220 6221 cmdsize = sizeof(uint32_t) + sizeof(uint32_t) 6222 + (2 * sizeof(struct lpfc_name)); 6223 if (format) 6224 cmdsize += sizeof(RNID_TOP_DISC); 6225 6226 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 6227 ndlp->nlp_DID, ELS_CMD_ACC); 6228 if (!elsiocb) 6229 return 1; 6230 6231 if (phba->sli_rev == LPFC_SLI_REV4) { 6232 wqe = &elsiocb->wqe; 6233 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6234 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 6235 ulp_context = get_job_ulpcontext(phba, elsiocb); 6236 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6237 get_job_rcvoxid(phba, oldiocb)); 6238 } else { 6239 icmd = &elsiocb->iocb; 6240 oldcmd = &oldiocb->iocb; 6241 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6242 ulp_context = elsiocb->iocb.ulpContext; 6243 icmd->unsli3.rcvsli3.ox_id = 6244 oldcmd->unsli3.rcvsli3.ox_id; 6245 } 6246 6247 /* Xmit RNID ACC response tag <ulpIoTag> */ 6248 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6249 "0132 Xmit RNID ACC response tag x%x xri x%x\n", 6250 elsiocb->iotag, ulp_context); 6251 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6252 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 6253 pcmd += sizeof(uint32_t); 6254 6255 memset(pcmd, 0, sizeof(RNID)); 6256 rn = (RNID *) (pcmd); 6257 rn->Format = format; 6258 rn->CommonLen = (2 * sizeof(struct lpfc_name)); 6259 memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); 6260 memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); 6261 switch (format) { 6262 case 0: 6263 rn->SpecificLen = 0; 6264 break; 6265 case RNID_TOPOLOGY_DISC: 6266 rn->SpecificLen = sizeof(RNID_TOP_DISC); 6267 memcpy(&rn->un.topologyDisc.portName, 6268 &vport->fc_portname, sizeof(struct lpfc_name)); 6269 rn->un.topologyDisc.unitType = RNID_HBA; 6270 rn->un.topologyDisc.physPort = 0; 6271 rn->un.topologyDisc.attachedNodes = 0; 6272 break; 6273 default: 6274 rn->CommonLen = 0; 6275 rn->SpecificLen = 0; 6276 break; 6277 } 6278 6279 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6280 "Issue ACC RNID: did:x%x flg:x%lx refcnt %d", 6281 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6282 6283 phba->fc_stat.elsXmitACC++; 6284 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6285 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6286 if (!elsiocb->ndlp) { 6287 lpfc_els_free_iocb(phba, elsiocb); 6288 return 1; 6289 } 6290 6291 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6292 if (rc == IOCB_ERROR) { 6293 lpfc_els_free_iocb(phba, elsiocb); 6294 lpfc_nlp_put(ndlp); 6295 return 1; 6296 } 6297 6298 return 0; 6299 } 6300 6301 /** 6302 * lpfc_els_clear_rrq - Clear the rq that this rrq describes. 6303 * @vport: pointer to a virtual N_Port data structure. 6304 * @iocb: pointer to the lpfc command iocb data structure. 6305 * @ndlp: pointer to a node-list data structure. 6306 * 6307 * Return 6308 **/ 6309 static void 6310 lpfc_els_clear_rrq(struct lpfc_vport *vport, 6311 struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp) 6312 { 6313 struct lpfc_hba *phba = vport->phba; 6314 uint8_t *pcmd; 6315 struct RRQ *rrq; 6316 uint16_t rxid; 6317 uint16_t xri; 6318 struct lpfc_node_rrq *prrq; 6319 6320 6321 pcmd = (uint8_t *)iocb->cmd_dmabuf->virt; 6322 pcmd += sizeof(uint32_t); 6323 rrq = (struct RRQ *)pcmd; 6324 rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg); 6325 rxid = bf_get(rrq_rxid, rrq); 6326 6327 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6328 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x" 6329 " x%x x%x\n", 6330 be32_to_cpu(bf_get(rrq_did, rrq)), 6331 bf_get(rrq_oxid, rrq), 6332 rxid, 6333 get_wqe_reqtag(iocb), 6334 get_job_ulpcontext(phba, iocb)); 6335 6336 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6337 "Clear RRQ: did:x%x flg:x%lx exchg:x%.08x", 6338 ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg); 6339 if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq))) 6340 xri = bf_get(rrq_oxid, rrq); 6341 else 6342 xri = rxid; 6343 prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID); 6344 if (prrq) 6345 lpfc_clr_rrq_active(phba, xri, prrq); 6346 return; 6347 } 6348 6349 /** 6350 * lpfc_els_rsp_echo_acc - Issue echo acc response 6351 * @vport: pointer to a virtual N_Port data structure. 6352 * @data: pointer to echo data to return in the accept. 6353 * @oldiocb: pointer to the original lpfc command iocb data structure. 6354 * @ndlp: pointer to a node-list data structure. 6355 * 6356 * Return code 6357 * 0 - Successfully issued acc echo response 6358 * 1 - Failed to issue acc echo response 6359 **/ 6360 static int 6361 lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data, 6362 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) 6363 { 6364 struct lpfc_hba *phba = vport->phba; 6365 IOCB_t *icmd, *oldcmd; 6366 union lpfc_wqe128 *wqe; 6367 struct lpfc_iocbq *elsiocb; 6368 uint8_t *pcmd; 6369 uint16_t cmdsize; 6370 int rc; 6371 u32 ulp_context; 6372 6373 if (phba->sli_rev == LPFC_SLI_REV4) 6374 cmdsize = oldiocb->wcqe_cmpl.total_data_placed; 6375 else 6376 cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len; 6377 6378 /* The accumulated length can exceed the BPL_SIZE. For 6379 * now, use this as the limit 6380 */ 6381 if (cmdsize > LPFC_BPL_SIZE) 6382 cmdsize = LPFC_BPL_SIZE; 6383 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 6384 ndlp->nlp_DID, ELS_CMD_ACC); 6385 if (!elsiocb) 6386 return 1; 6387 6388 if (phba->sli_rev == LPFC_SLI_REV4) { 6389 wqe = &elsiocb->wqe; 6390 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 6391 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ 6392 ulp_context = get_job_ulpcontext(phba, elsiocb); 6393 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 6394 get_job_rcvoxid(phba, oldiocb)); 6395 } else { 6396 icmd = &elsiocb->iocb; 6397 oldcmd = &oldiocb->iocb; 6398 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ 6399 ulp_context = elsiocb->iocb.ulpContext; 6400 icmd->unsli3.rcvsli3.ox_id = 6401 oldcmd->unsli3.rcvsli3.ox_id; 6402 } 6403 6404 /* Xmit ECHO ACC response tag <ulpIoTag> */ 6405 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 6406 "2876 Xmit ECHO ACC response tag x%x xri x%x\n", 6407 elsiocb->iotag, ulp_context); 6408 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 6409 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 6410 pcmd += sizeof(uint32_t); 6411 memcpy(pcmd, data, cmdsize - sizeof(uint32_t)); 6412 6413 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, 6414 "Issue ACC ECHO: did:x%x flg:x%lx refcnt %d", 6415 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); 6416 6417 phba->fc_stat.elsXmitACC++; 6418 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 6419 elsiocb->ndlp = lpfc_nlp_get(ndlp); 6420 if (!elsiocb->ndlp) { 6421 lpfc_els_free_iocb(phba, elsiocb); 6422 return 1; 6423 } 6424 6425 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 6426 if (rc == IOCB_ERROR) { 6427 lpfc_els_free_iocb(phba, elsiocb); 6428 lpfc_nlp_put(ndlp); 6429 return 1; 6430 } 6431 6432 return 0; 6433 } 6434 6435 /** 6436 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport 6437 * @vport: pointer to a host virtual N_Port data structure. 6438 * 6439 * This routine issues Address Discover (ADISC) ELS commands to those 6440 * N_Ports which are in node port recovery state and ADISC has not been issued 6441 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the 6442 * lpfc_issue_els_adisc() routine, the per @vport number of discover count 6443 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a 6444 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will 6445 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC 6446 * IOCBs quit for later pick up. On the other hand, after walking through 6447 * all the ndlps with the @vport and there is none ADISC IOCB issued, the 6448 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is 6449 * no more ADISC need to be sent. 6450 * 6451 * Return code 6452 * The number of N_Ports with adisc issued. 6453 **/ 6454 int 6455 lpfc_els_disc_adisc(struct lpfc_vport *vport) 6456 { 6457 struct lpfc_nodelist *ndlp, *next_ndlp; 6458 int sentadisc = 0; 6459 6460 /* go thru NPR nodes and issue any remaining ELS ADISCs */ 6461 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 6462 6463 if (ndlp->nlp_state != NLP_STE_NPR_NODE || 6464 !test_bit(NLP_NPR_ADISC, &ndlp->nlp_flag)) 6465 continue; 6466 6467 clear_bit(NLP_NPR_ADISC, &ndlp->nlp_flag); 6468 6469 if (!test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag)) { 6470 /* This node was marked for ADISC but was not picked 6471 * for discovery. This is possible if the node was 6472 * missing in gidft response. 6473 * 6474 * At time of marking node for ADISC, we skipped unreg 6475 * from backend 6476 */ 6477 lpfc_nlp_unreg_node(vport, ndlp); 6478 lpfc_unreg_rpi(vport, ndlp); 6479 continue; 6480 } 6481 6482 ndlp->nlp_prev_state = ndlp->nlp_state; 6483 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 6484 lpfc_issue_els_adisc(vport, ndlp, 0); 6485 sentadisc++; 6486 vport->num_disc_nodes++; 6487 if (vport->num_disc_nodes >= 6488 vport->cfg_discovery_threads) { 6489 set_bit(FC_NLP_MORE, &vport->fc_flag); 6490 break; 6491 } 6492 6493 } 6494 if (sentadisc == 0) 6495 clear_bit(FC_NLP_MORE, &vport->fc_flag); 6496 return sentadisc; 6497 } 6498 6499 /** 6500 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc 6501 * @vport: pointer to a host virtual N_Port data structure. 6502 * 6503 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports 6504 * which are in node port recovery state, with a @vport. Each time an ELS 6505 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine, 6506 * the per @vport number of discover count (num_disc_nodes) shall be 6507 * incremented. If the num_disc_nodes reaches a pre-configured threshold 6508 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE 6509 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for 6510 * later pick up. On the other hand, after walking through all the ndlps with 6511 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag 6512 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC 6513 * PLOGI need to be sent. 6514 * 6515 * Return code 6516 * The number of N_Ports with plogi issued. 6517 **/ 6518 int 6519 lpfc_els_disc_plogi(struct lpfc_vport *vport) 6520 { 6521 struct lpfc_nodelist *ndlp, *next_ndlp; 6522 int sentplogi = 0; 6523 6524 /* go thru NPR nodes and issue any remaining ELS PLOGIs */ 6525 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 6526 if (ndlp->nlp_state == NLP_STE_NPR_NODE && 6527 test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag) && 6528 !test_bit(NLP_DELAY_TMO, &ndlp->nlp_flag) && 6529 !test_bit(NLP_NPR_ADISC, &ndlp->nlp_flag)) { 6530 ndlp->nlp_prev_state = ndlp->nlp_state; 6531 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 6532 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 6533 sentplogi++; 6534 vport->num_disc_nodes++; 6535 if (vport->num_disc_nodes >= 6536 vport->cfg_discovery_threads) { 6537 set_bit(FC_NLP_MORE, &vport->fc_flag); 6538 break; 6539 } 6540 } 6541 } 6542 6543 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 6544 "6452 Discover PLOGI %d flag x%lx\n", 6545 sentplogi, vport->fc_flag); 6546 6547 if (sentplogi) 6548 lpfc_set_disctmo(vport); 6549 else 6550 clear_bit(FC_NLP_MORE, &vport->fc_flag); 6551 return sentplogi; 6552 } 6553 6554 static uint32_t 6555 lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc, 6556 uint32_t word0) 6557 { 6558 6559 desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG); 6560 desc->payload.els_req = word0; 6561 desc->length = cpu_to_be32(sizeof(desc->payload)); 6562 6563 return sizeof(struct fc_rdp_link_service_desc); 6564 } 6565 6566 static uint32_t 6567 lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc, 6568 uint8_t *page_a0, uint8_t *page_a2) 6569 { 6570 uint16_t wavelength; 6571 uint16_t temperature; 6572 uint16_t rx_power; 6573 uint16_t tx_bias; 6574 uint16_t tx_power; 6575 uint16_t vcc; 6576 uint16_t flag = 0; 6577 struct sff_trasnceiver_codes_byte4 *trasn_code_byte4; 6578 struct sff_trasnceiver_codes_byte5 *trasn_code_byte5; 6579 6580 desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG); 6581 6582 trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *) 6583 &page_a0[SSF_TRANSCEIVER_CODE_B4]; 6584 trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *) 6585 &page_a0[SSF_TRANSCEIVER_CODE_B5]; 6586 6587 if ((trasn_code_byte4->fc_sw_laser) || 6588 (trasn_code_byte5->fc_sw_laser_sl) || 6589 (trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */ 6590 flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT); 6591 } else if (trasn_code_byte4->fc_lw_laser) { 6592 wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) | 6593 page_a0[SSF_WAVELENGTH_B0]; 6594 if (wavelength == SFP_WAVELENGTH_LC1310) 6595 flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT; 6596 if (wavelength == SFP_WAVELENGTH_LL1550) 6597 flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT; 6598 } 6599 /* check if its SFP+ */ 6600 flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ? 6601 SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN) 6602 << SFP_FLAG_CT_SHIFT; 6603 6604 /* check if its OPTICAL */ 6605 flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ? 6606 SFP_FLAG_IS_OPTICAL_PORT : 0) 6607 << SFP_FLAG_IS_OPTICAL_SHIFT; 6608 6609 temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 | 6610 page_a2[SFF_TEMPERATURE_B0]); 6611 vcc = (page_a2[SFF_VCC_B1] << 8 | 6612 page_a2[SFF_VCC_B0]); 6613 tx_power = (page_a2[SFF_TXPOWER_B1] << 8 | 6614 page_a2[SFF_TXPOWER_B0]); 6615 tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 | 6616 page_a2[SFF_TX_BIAS_CURRENT_B0]); 6617 rx_power = (page_a2[SFF_RXPOWER_B1] << 8 | 6618 page_a2[SFF_RXPOWER_B0]); 6619 desc->sfp_info.temperature = cpu_to_be16(temperature); 6620 desc->sfp_info.rx_power = cpu_to_be16(rx_power); 6621 desc->sfp_info.tx_bias = cpu_to_be16(tx_bias); 6622 desc->sfp_info.tx_power = cpu_to_be16(tx_power); 6623 desc->sfp_info.vcc = cpu_to_be16(vcc); 6624 6625 desc->sfp_info.flags = cpu_to_be16(flag); 6626 desc->length = cpu_to_be32(sizeof(desc->sfp_info)); 6627 6628 return sizeof(struct fc_rdp_sfp_desc); 6629 } 6630 6631 static uint32_t 6632 lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc, 6633 READ_LNK_VAR *stat) 6634 { 6635 uint32_t type; 6636 6637 desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG); 6638 6639 type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT; 6640 6641 desc->info.port_type = cpu_to_be32(type); 6642 6643 desc->info.link_status.link_failure_cnt = 6644 cpu_to_be32(stat->linkFailureCnt); 6645 desc->info.link_status.loss_of_synch_cnt = 6646 cpu_to_be32(stat->lossSyncCnt); 6647 desc->info.link_status.loss_of_signal_cnt = 6648 cpu_to_be32(stat->lossSignalCnt); 6649 desc->info.link_status.primitive_seq_proto_err = 6650 cpu_to_be32(stat->primSeqErrCnt); 6651 desc->info.link_status.invalid_trans_word = 6652 cpu_to_be32(stat->invalidXmitWord); 6653 desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt); 6654 6655 desc->length = cpu_to_be32(sizeof(desc->info)); 6656 6657 return sizeof(struct fc_rdp_link_error_status_desc); 6658 } 6659 6660 static uint32_t 6661 lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat, 6662 struct lpfc_vport *vport) 6663 { 6664 uint32_t bbCredit; 6665 6666 desc->tag = cpu_to_be32(RDP_BBC_DESC_TAG); 6667 6668 bbCredit = vport->fc_sparam.cmn.bbCreditLsb | 6669 (vport->fc_sparam.cmn.bbCreditMsb << 8); 6670 desc->bbc_info.port_bbc = cpu_to_be32(bbCredit); 6671 if (vport->phba->fc_topology != LPFC_TOPOLOGY_LOOP) { 6672 bbCredit = vport->phba->fc_fabparam.cmn.bbCreditLsb | 6673 (vport->phba->fc_fabparam.cmn.bbCreditMsb << 8); 6674 desc->bbc_info.attached_port_bbc = cpu_to_be32(bbCredit); 6675 } else { 6676 desc->bbc_info.attached_port_bbc = 0; 6677 } 6678 6679 desc->bbc_info.rtt = 0; 6680 desc->length = cpu_to_be32(sizeof(desc->bbc_info)); 6681 6682 return sizeof(struct fc_rdp_bbc_desc); 6683 } 6684 6685 static uint32_t 6686 lpfc_rdp_res_oed_temp_desc(struct lpfc_hba *phba, 6687 struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2) 6688 { 6689 uint32_t flags = 0; 6690 6691 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6692 6693 desc->oed_info.hi_alarm = page_a2[SSF_TEMP_HIGH_ALARM]; 6694 desc->oed_info.lo_alarm = page_a2[SSF_TEMP_LOW_ALARM]; 6695 desc->oed_info.hi_warning = page_a2[SSF_TEMP_HIGH_WARNING]; 6696 desc->oed_info.lo_warning = page_a2[SSF_TEMP_LOW_WARNING]; 6697 6698 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TEMPERATURE) 6699 flags |= RDP_OET_HIGH_ALARM; 6700 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TEMPERATURE) 6701 flags |= RDP_OET_LOW_ALARM; 6702 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TEMPERATURE) 6703 flags |= RDP_OET_HIGH_WARNING; 6704 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TEMPERATURE) 6705 flags |= RDP_OET_LOW_WARNING; 6706 6707 flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT); 6708 desc->oed_info.function_flags = cpu_to_be32(flags); 6709 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6710 return sizeof(struct fc_rdp_oed_sfp_desc); 6711 } 6712 6713 static uint32_t 6714 lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba *phba, 6715 struct fc_rdp_oed_sfp_desc *desc, 6716 uint8_t *page_a2) 6717 { 6718 uint32_t flags = 0; 6719 6720 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6721 6722 desc->oed_info.hi_alarm = page_a2[SSF_VOLTAGE_HIGH_ALARM]; 6723 desc->oed_info.lo_alarm = page_a2[SSF_VOLTAGE_LOW_ALARM]; 6724 desc->oed_info.hi_warning = page_a2[SSF_VOLTAGE_HIGH_WARNING]; 6725 desc->oed_info.lo_warning = page_a2[SSF_VOLTAGE_LOW_WARNING]; 6726 6727 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_VOLTAGE) 6728 flags |= RDP_OET_HIGH_ALARM; 6729 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_VOLTAGE) 6730 flags |= RDP_OET_LOW_ALARM; 6731 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_VOLTAGE) 6732 flags |= RDP_OET_HIGH_WARNING; 6733 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_VOLTAGE) 6734 flags |= RDP_OET_LOW_WARNING; 6735 6736 flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT); 6737 desc->oed_info.function_flags = cpu_to_be32(flags); 6738 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6739 return sizeof(struct fc_rdp_oed_sfp_desc); 6740 } 6741 6742 static uint32_t 6743 lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba *phba, 6744 struct fc_rdp_oed_sfp_desc *desc, 6745 uint8_t *page_a2) 6746 { 6747 uint32_t flags = 0; 6748 6749 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6750 6751 desc->oed_info.hi_alarm = page_a2[SSF_BIAS_HIGH_ALARM]; 6752 desc->oed_info.lo_alarm = page_a2[SSF_BIAS_LOW_ALARM]; 6753 desc->oed_info.hi_warning = page_a2[SSF_BIAS_HIGH_WARNING]; 6754 desc->oed_info.lo_warning = page_a2[SSF_BIAS_LOW_WARNING]; 6755 6756 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXBIAS) 6757 flags |= RDP_OET_HIGH_ALARM; 6758 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXBIAS) 6759 flags |= RDP_OET_LOW_ALARM; 6760 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXBIAS) 6761 flags |= RDP_OET_HIGH_WARNING; 6762 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXBIAS) 6763 flags |= RDP_OET_LOW_WARNING; 6764 6765 flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT); 6766 desc->oed_info.function_flags = cpu_to_be32(flags); 6767 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6768 return sizeof(struct fc_rdp_oed_sfp_desc); 6769 } 6770 6771 static uint32_t 6772 lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba *phba, 6773 struct fc_rdp_oed_sfp_desc *desc, 6774 uint8_t *page_a2) 6775 { 6776 uint32_t flags = 0; 6777 6778 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6779 6780 desc->oed_info.hi_alarm = page_a2[SSF_TXPOWER_HIGH_ALARM]; 6781 desc->oed_info.lo_alarm = page_a2[SSF_TXPOWER_LOW_ALARM]; 6782 desc->oed_info.hi_warning = page_a2[SSF_TXPOWER_HIGH_WARNING]; 6783 desc->oed_info.lo_warning = page_a2[SSF_TXPOWER_LOW_WARNING]; 6784 6785 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXPOWER) 6786 flags |= RDP_OET_HIGH_ALARM; 6787 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXPOWER) 6788 flags |= RDP_OET_LOW_ALARM; 6789 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXPOWER) 6790 flags |= RDP_OET_HIGH_WARNING; 6791 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXPOWER) 6792 flags |= RDP_OET_LOW_WARNING; 6793 6794 flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT); 6795 desc->oed_info.function_flags = cpu_to_be32(flags); 6796 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6797 return sizeof(struct fc_rdp_oed_sfp_desc); 6798 } 6799 6800 6801 static uint32_t 6802 lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba *phba, 6803 struct fc_rdp_oed_sfp_desc *desc, 6804 uint8_t *page_a2) 6805 { 6806 uint32_t flags = 0; 6807 6808 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); 6809 6810 desc->oed_info.hi_alarm = page_a2[SSF_RXPOWER_HIGH_ALARM]; 6811 desc->oed_info.lo_alarm = page_a2[SSF_RXPOWER_LOW_ALARM]; 6812 desc->oed_info.hi_warning = page_a2[SSF_RXPOWER_HIGH_WARNING]; 6813 desc->oed_info.lo_warning = page_a2[SSF_RXPOWER_LOW_WARNING]; 6814 6815 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_RXPOWER) 6816 flags |= RDP_OET_HIGH_ALARM; 6817 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_RXPOWER) 6818 flags |= RDP_OET_LOW_ALARM; 6819 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_RXPOWER) 6820 flags |= RDP_OET_HIGH_WARNING; 6821 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_RXPOWER) 6822 flags |= RDP_OET_LOW_WARNING; 6823 6824 flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT); 6825 desc->oed_info.function_flags = cpu_to_be32(flags); 6826 desc->length = cpu_to_be32(sizeof(desc->oed_info)); 6827 return sizeof(struct fc_rdp_oed_sfp_desc); 6828 } 6829 6830 static uint32_t 6831 lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc, 6832 uint8_t *page_a0, struct lpfc_vport *vport) 6833 { 6834 desc->tag = cpu_to_be32(RDP_OPD_DESC_TAG); 6835 memcpy(desc->opd_info.vendor_name, &page_a0[SSF_VENDOR_NAME], 16); 6836 memcpy(desc->opd_info.model_number, &page_a0[SSF_VENDOR_PN], 16); 6837 memcpy(desc->opd_info.serial_number, &page_a0[SSF_VENDOR_SN], 16); 6838 memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 4); 6839 memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8); 6840 desc->length = cpu_to_be32(sizeof(desc->opd_info)); 6841 return sizeof(struct fc_rdp_opd_sfp_desc); 6842 } 6843 6844 static uint32_t 6845 lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat) 6846 { 6847 if (bf_get(lpfc_read_link_stat_gec2, stat) == 0) 6848 return 0; 6849 desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG); 6850 6851 desc->info.CorrectedBlocks = 6852 cpu_to_be32(stat->fecCorrBlkCount); 6853 desc->info.UncorrectableBlocks = 6854 cpu_to_be32(stat->fecUncorrBlkCount); 6855 6856 desc->length = cpu_to_be32(sizeof(desc->info)); 6857 6858 return sizeof(struct fc_fec_rdp_desc); 6859 } 6860 6861 static uint32_t 6862 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba) 6863 { 6864 uint16_t rdp_cap = 0; 6865 uint16_t rdp_speed; 6866 6867 desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG); 6868 6869 switch (phba->fc_linkspeed) { 6870 case LPFC_LINK_SPEED_1GHZ: 6871 rdp_speed = RDP_PS_1GB; 6872 break; 6873 case LPFC_LINK_SPEED_2GHZ: 6874 rdp_speed = RDP_PS_2GB; 6875 break; 6876 case LPFC_LINK_SPEED_4GHZ: 6877 rdp_speed = RDP_PS_4GB; 6878 break; 6879 case LPFC_LINK_SPEED_8GHZ: 6880 rdp_speed = RDP_PS_8GB; 6881 break; 6882 case LPFC_LINK_SPEED_10GHZ: 6883 rdp_speed = RDP_PS_10GB; 6884 break; 6885 case LPFC_LINK_SPEED_16GHZ: 6886 rdp_speed = RDP_PS_16GB; 6887 break; 6888 case LPFC_LINK_SPEED_32GHZ: 6889 rdp_speed = RDP_PS_32GB; 6890 break; 6891 case LPFC_LINK_SPEED_64GHZ: 6892 rdp_speed = RDP_PS_64GB; 6893 break; 6894 case LPFC_LINK_SPEED_128GHZ: 6895 rdp_speed = RDP_PS_128GB; 6896 break; 6897 case LPFC_LINK_SPEED_256GHZ: 6898 rdp_speed = RDP_PS_256GB; 6899 break; 6900 default: 6901 rdp_speed = RDP_PS_UNKNOWN; 6902 break; 6903 } 6904 6905 desc->info.port_speed.speed = cpu_to_be16(rdp_speed); 6906 6907 if (phba->lmt & LMT_256Gb) 6908 rdp_cap |= RDP_PS_256GB; 6909 if (phba->lmt & LMT_128Gb) 6910 rdp_cap |= RDP_PS_128GB; 6911 if (phba->lmt & LMT_64Gb) 6912 rdp_cap |= RDP_PS_64GB; 6913 if (phba->lmt & LMT_32Gb) 6914 rdp_cap |= RDP_PS_32GB; 6915 if (phba->lmt & LMT_16Gb) 6916 rdp_cap |= RDP_PS_16GB; 6917 if (phba->lmt & LMT_10Gb) 6918 rdp_cap |= RDP_PS_10GB; 6919 if (phba->lmt & LMT_8Gb) 6920 rdp_cap |= RDP_PS_8GB; 6921 if (phba->lmt & LMT_4Gb) 6922 rdp_cap |= RDP_PS_4GB; 6923 if (phba->lmt & LMT_2Gb) 6924 rdp_cap |= RDP_PS_2GB; 6925 if (phba->lmt & LMT_1Gb) 6926 rdp_cap |= RDP_PS_1GB; 6927 6928 if (rdp_cap == 0) 6929 rdp_cap = RDP_CAP_UNKNOWN; 6930 if (phba->cfg_link_speed != LPFC_USER_LINK_SPEED_AUTO) 6931 rdp_cap |= RDP_CAP_USER_CONFIGURED; 6932 6933 desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap); 6934 desc->length = cpu_to_be32(sizeof(desc->info)); 6935 return sizeof(struct fc_rdp_port_speed_desc); 6936 } 6937 6938 static uint32_t 6939 lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc, 6940 struct lpfc_vport *vport) 6941 { 6942 6943 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG); 6944 6945 memcpy(desc->port_names.wwnn, &vport->fc_nodename, 6946 sizeof(desc->port_names.wwnn)); 6947 6948 memcpy(desc->port_names.wwpn, &vport->fc_portname, 6949 sizeof(desc->port_names.wwpn)); 6950 6951 desc->length = cpu_to_be32(sizeof(desc->port_names)); 6952 return sizeof(struct fc_rdp_port_name_desc); 6953 } 6954 6955 static uint32_t 6956 lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc, 6957 struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 6958 { 6959 6960 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG); 6961 if (test_bit(FC_FABRIC, &vport->fc_flag)) { 6962 memcpy(desc->port_names.wwnn, &vport->fabric_nodename, 6963 sizeof(desc->port_names.wwnn)); 6964 6965 memcpy(desc->port_names.wwpn, &vport->fabric_portname, 6966 sizeof(desc->port_names.wwpn)); 6967 } else { /* Point to Point */ 6968 memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename, 6969 sizeof(desc->port_names.wwnn)); 6970 6971 memcpy(desc->port_names.wwpn, &ndlp->nlp_portname, 6972 sizeof(desc->port_names.wwpn)); 6973 } 6974 6975 desc->length = cpu_to_be32(sizeof(desc->port_names)); 6976 return sizeof(struct fc_rdp_port_name_desc); 6977 } 6978 6979 static void 6980 lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context, 6981 int status) 6982 { 6983 struct lpfc_nodelist *ndlp = rdp_context->ndlp; 6984 struct lpfc_vport *vport = ndlp->vport; 6985 struct lpfc_iocbq *elsiocb; 6986 struct ulp_bde64 *bpl; 6987 IOCB_t *icmd; 6988 union lpfc_wqe128 *wqe; 6989 uint8_t *pcmd; 6990 struct ls_rjt *stat; 6991 struct fc_rdp_res_frame *rdp_res; 6992 uint32_t cmdsize, len; 6993 uint16_t *flag_ptr; 6994 int rc; 6995 u32 ulp_context; 6996 6997 if (status != SUCCESS) 6998 goto error; 6999 7000 /* This will change once we know the true size of the RDP payload */ 7001 cmdsize = sizeof(struct fc_rdp_res_frame); 7002 7003 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, 7004 lpfc_max_els_tries, rdp_context->ndlp, 7005 rdp_context->ndlp->nlp_DID, ELS_CMD_ACC); 7006 if (!elsiocb) 7007 goto free_rdp_context; 7008 7009 ulp_context = get_job_ulpcontext(phba, elsiocb); 7010 if (phba->sli_rev == LPFC_SLI_REV4) { 7011 wqe = &elsiocb->wqe; 7012 /* ox-id of the frame */ 7013 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7014 rdp_context->ox_id); 7015 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, 7016 rdp_context->rx_id); 7017 } else { 7018 icmd = &elsiocb->iocb; 7019 icmd->ulpContext = rdp_context->rx_id; 7020 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id; 7021 } 7022 7023 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 7024 "2171 Xmit RDP response tag x%x xri x%x, " 7025 "did x%x, nlp_flag x%lx, nlp_state x%x, rpi x%x", 7026 elsiocb->iotag, ulp_context, 7027 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 7028 ndlp->nlp_rpi); 7029 rdp_res = (struct fc_rdp_res_frame *)elsiocb->cmd_dmabuf->virt; 7030 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7031 memset(pcmd, 0, sizeof(struct fc_rdp_res_frame)); 7032 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 7033 7034 /* Update Alarm and Warning */ 7035 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_ALARM_FLAGS); 7036 phba->sfp_alarm |= *flag_ptr; 7037 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_WARNING_FLAGS); 7038 phba->sfp_warning |= *flag_ptr; 7039 7040 /* For RDP payload */ 7041 len = 8; 7042 len += lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc *) 7043 (len + pcmd), ELS_CMD_RDP); 7044 7045 len += lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc *)(len + pcmd), 7046 rdp_context->page_a0, rdp_context->page_a2); 7047 len += lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc *)(len + pcmd), 7048 phba); 7049 len += lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc *) 7050 (len + pcmd), &rdp_context->link_stat); 7051 len += lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc *) 7052 (len + pcmd), vport); 7053 len += lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc *) 7054 (len + pcmd), vport, ndlp); 7055 len += lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc *)(len + pcmd), 7056 &rdp_context->link_stat); 7057 len += lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc *)(len + pcmd), 7058 &rdp_context->link_stat, vport); 7059 len += lpfc_rdp_res_oed_temp_desc(phba, 7060 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7061 rdp_context->page_a2); 7062 len += lpfc_rdp_res_oed_voltage_desc(phba, 7063 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7064 rdp_context->page_a2); 7065 len += lpfc_rdp_res_oed_txbias_desc(phba, 7066 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7067 rdp_context->page_a2); 7068 len += lpfc_rdp_res_oed_txpower_desc(phba, 7069 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7070 rdp_context->page_a2); 7071 len += lpfc_rdp_res_oed_rxpower_desc(phba, 7072 (struct fc_rdp_oed_sfp_desc *)(len + pcmd), 7073 rdp_context->page_a2); 7074 len += lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc *)(len + pcmd), 7075 rdp_context->page_a0, vport); 7076 7077 rdp_res->length = cpu_to_be32(len - 8); 7078 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7079 7080 /* Now that we know the true size of the payload, update the BPL */ 7081 bpl = (struct ulp_bde64 *)elsiocb->bpl_dmabuf->virt; 7082 bpl->tus.f.bdeSize = len; 7083 bpl->tus.f.bdeFlags = 0; 7084 bpl->tus.w = le32_to_cpu(bpl->tus.w); 7085 7086 phba->fc_stat.elsXmitACC++; 7087 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7088 if (!elsiocb->ndlp) { 7089 lpfc_els_free_iocb(phba, elsiocb); 7090 goto free_rdp_context; 7091 } 7092 7093 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7094 if (rc == IOCB_ERROR) { 7095 lpfc_els_free_iocb(phba, elsiocb); 7096 lpfc_nlp_put(ndlp); 7097 } 7098 7099 goto free_rdp_context; 7100 7101 error: 7102 cmdsize = 2 * sizeof(uint32_t); 7103 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries, 7104 ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT); 7105 if (!elsiocb) 7106 goto free_rdp_context; 7107 7108 if (phba->sli_rev == LPFC_SLI_REV4) { 7109 wqe = &elsiocb->wqe; 7110 /* ox-id of the frame */ 7111 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7112 rdp_context->ox_id); 7113 bf_set(wqe_ctxt_tag, 7114 &wqe->xmit_els_rsp.wqe_com, 7115 rdp_context->rx_id); 7116 } else { 7117 icmd = &elsiocb->iocb; 7118 icmd->ulpContext = rdp_context->rx_id; 7119 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id; 7120 } 7121 7122 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7123 7124 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; 7125 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t)); 7126 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 7127 7128 phba->fc_stat.elsXmitLSRJT++; 7129 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7130 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7131 if (!elsiocb->ndlp) { 7132 lpfc_els_free_iocb(phba, elsiocb); 7133 goto free_rdp_context; 7134 } 7135 7136 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7137 if (rc == IOCB_ERROR) { 7138 lpfc_els_free_iocb(phba, elsiocb); 7139 lpfc_nlp_put(ndlp); 7140 } 7141 7142 free_rdp_context: 7143 /* This reference put is for the original unsolicited RDP. If the 7144 * prep failed, there is no reference to remove. 7145 */ 7146 lpfc_nlp_put(ndlp); 7147 kfree(rdp_context); 7148 } 7149 7150 static int 7151 lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context) 7152 { 7153 LPFC_MBOXQ_t *mbox = NULL; 7154 int rc; 7155 7156 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7157 if (!mbox) { 7158 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS, 7159 "7105 failed to allocate mailbox memory"); 7160 return 1; 7161 } 7162 7163 if (lpfc_sli4_dump_page_a0(phba, mbox)) 7164 goto rdp_fail; 7165 mbox->vport = rdp_context->ndlp->vport; 7166 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0; 7167 mbox->ctx_u.rdp = rdp_context; 7168 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 7169 if (rc == MBX_NOT_FINISHED) { 7170 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 7171 return 1; 7172 } 7173 7174 return 0; 7175 7176 rdp_fail: 7177 mempool_free(mbox, phba->mbox_mem_pool); 7178 return 1; 7179 } 7180 7181 int lpfc_get_sfp_info_wait(struct lpfc_hba *phba, 7182 struct lpfc_rdp_context *rdp_context) 7183 { 7184 LPFC_MBOXQ_t *mbox = NULL; 7185 int rc; 7186 struct lpfc_dmabuf *mp; 7187 struct lpfc_dmabuf *mpsave; 7188 void *virt; 7189 MAILBOX_t *mb; 7190 7191 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7192 if (!mbox) { 7193 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS, 7194 "7205 failed to allocate mailbox memory"); 7195 return 1; 7196 } 7197 7198 if (lpfc_sli4_dump_page_a0(phba, mbox)) 7199 goto sfp_fail; 7200 mp = mbox->ctx_buf; 7201 mpsave = mp; 7202 virt = mp->virt; 7203 if (phba->sli_rev < LPFC_SLI_REV4) { 7204 mb = &mbox->u.mb; 7205 mb->un.varDmp.cv = 1; 7206 mb->un.varDmp.co = 1; 7207 mb->un.varWords[2] = 0; 7208 mb->un.varWords[3] = DMP_SFF_PAGE_A0_SIZE / 4; 7209 mb->un.varWords[4] = 0; 7210 mb->un.varWords[5] = 0; 7211 mb->un.varWords[6] = 0; 7212 mb->un.varWords[7] = 0; 7213 mb->un.varWords[8] = 0; 7214 mb->un.varWords[9] = 0; 7215 mb->un.varWords[10] = 0; 7216 mbox->in_ext_byte_len = DMP_SFF_PAGE_A0_SIZE; 7217 mbox->out_ext_byte_len = DMP_SFF_PAGE_A0_SIZE; 7218 mbox->mbox_offset_word = 5; 7219 mbox->ext_buf = virt; 7220 } else { 7221 bf_set(lpfc_mbx_memory_dump_type3_length, 7222 &mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A0_SIZE); 7223 mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys); 7224 mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys); 7225 } 7226 mbox->vport = phba->pport; 7227 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_SLI4_CONFIG_TMO); 7228 if (rc == MBX_NOT_FINISHED) { 7229 rc = 1; 7230 goto error; 7231 } 7232 if (rc == MBX_TIMEOUT) 7233 goto error; 7234 if (phba->sli_rev == LPFC_SLI_REV4) 7235 mp = mbox->ctx_buf; 7236 else 7237 mp = mpsave; 7238 7239 if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) { 7240 rc = 1; 7241 goto error; 7242 } 7243 7244 lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a0, 7245 DMP_SFF_PAGE_A0_SIZE); 7246 7247 memset(mbox, 0, sizeof(*mbox)); 7248 memset(mp->virt, 0, DMP_SFF_PAGE_A2_SIZE); 7249 INIT_LIST_HEAD(&mp->list); 7250 7251 /* save address for completion */ 7252 mbox->ctx_buf = mp; 7253 mbox->vport = phba->pport; 7254 7255 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_DUMP_MEMORY); 7256 bf_set(lpfc_mbx_memory_dump_type3_type, 7257 &mbox->u.mqe.un.mem_dump_type3, DMP_LMSD); 7258 bf_set(lpfc_mbx_memory_dump_type3_link, 7259 &mbox->u.mqe.un.mem_dump_type3, phba->sli4_hba.physical_port); 7260 bf_set(lpfc_mbx_memory_dump_type3_page_no, 7261 &mbox->u.mqe.un.mem_dump_type3, DMP_PAGE_A2); 7262 if (phba->sli_rev < LPFC_SLI_REV4) { 7263 mb = &mbox->u.mb; 7264 mb->un.varDmp.cv = 1; 7265 mb->un.varDmp.co = 1; 7266 mb->un.varWords[2] = 0; 7267 mb->un.varWords[3] = DMP_SFF_PAGE_A2_SIZE / 4; 7268 mb->un.varWords[4] = 0; 7269 mb->un.varWords[5] = 0; 7270 mb->un.varWords[6] = 0; 7271 mb->un.varWords[7] = 0; 7272 mb->un.varWords[8] = 0; 7273 mb->un.varWords[9] = 0; 7274 mb->un.varWords[10] = 0; 7275 mbox->in_ext_byte_len = DMP_SFF_PAGE_A2_SIZE; 7276 mbox->out_ext_byte_len = DMP_SFF_PAGE_A2_SIZE; 7277 mbox->mbox_offset_word = 5; 7278 mbox->ext_buf = virt; 7279 } else { 7280 bf_set(lpfc_mbx_memory_dump_type3_length, 7281 &mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A2_SIZE); 7282 mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys); 7283 mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys); 7284 } 7285 7286 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_SLI4_CONFIG_TMO); 7287 7288 if (rc == MBX_TIMEOUT) 7289 goto error; 7290 if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) { 7291 rc = 1; 7292 goto error; 7293 } 7294 rc = 0; 7295 7296 lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a2, 7297 DMP_SFF_PAGE_A2_SIZE); 7298 7299 error: 7300 if (mbox->mbox_flag & LPFC_MBX_WAKE) { 7301 mbox->ctx_buf = mpsave; 7302 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); 7303 } 7304 7305 return rc; 7306 7307 sfp_fail: 7308 mempool_free(mbox, phba->mbox_mem_pool); 7309 return 1; 7310 } 7311 7312 /* 7313 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS. 7314 * @vport: pointer to a host virtual N_Port data structure. 7315 * @cmdiocb: pointer to lpfc command iocb data structure. 7316 * @ndlp: pointer to a node-list data structure. 7317 * 7318 * This routine processes an unsolicited RDP(Read Diagnostic Parameters) 7319 * IOCB. First, the payload of the unsolicited RDP is checked. 7320 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3 7321 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2, 7322 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl 7323 * gather all data and send RDP response. 7324 * 7325 * Return code 7326 * 0 - Sent the acc response 7327 * 1 - Sent the reject response. 7328 */ 7329 static int 7330 lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 7331 struct lpfc_nodelist *ndlp) 7332 { 7333 struct lpfc_hba *phba = vport->phba; 7334 struct lpfc_dmabuf *pcmd; 7335 uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE; 7336 struct fc_rdp_req_frame *rdp_req; 7337 struct lpfc_rdp_context *rdp_context; 7338 union lpfc_wqe128 *cmd = NULL; 7339 struct ls_rjt stat; 7340 7341 if (phba->sli_rev < LPFC_SLI_REV4 || 7342 bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 7343 LPFC_SLI_INTF_IF_TYPE_2) { 7344 rjt_err = LSRJT_UNABLE_TPC; 7345 rjt_expl = LSEXP_REQ_UNSUPPORTED; 7346 goto error; 7347 } 7348 7349 if (phba->sli_rev < LPFC_SLI_REV4 || 7350 test_bit(HBA_FCOE_MODE, &phba->hba_flag)) { 7351 rjt_err = LSRJT_UNABLE_TPC; 7352 rjt_expl = LSEXP_REQ_UNSUPPORTED; 7353 goto error; 7354 } 7355 7356 pcmd = cmdiocb->cmd_dmabuf; 7357 rdp_req = (struct fc_rdp_req_frame *) pcmd->virt; 7358 7359 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 7360 "2422 ELS RDP Request " 7361 "dec len %d tag x%x port_id %d len %d\n", 7362 be32_to_cpu(rdp_req->rdp_des_length), 7363 be32_to_cpu(rdp_req->nport_id_desc.tag), 7364 be32_to_cpu(rdp_req->nport_id_desc.nport_id), 7365 be32_to_cpu(rdp_req->nport_id_desc.length)); 7366 7367 if (sizeof(struct fc_rdp_nport_desc) != 7368 be32_to_cpu(rdp_req->rdp_des_length)) 7369 goto rjt_logerr; 7370 if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag)) 7371 goto rjt_logerr; 7372 if (RDP_NPORT_ID_SIZE != 7373 be32_to_cpu(rdp_req->nport_id_desc.length)) 7374 goto rjt_logerr; 7375 rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL); 7376 if (!rdp_context) { 7377 rjt_err = LSRJT_UNABLE_TPC; 7378 goto error; 7379 } 7380 7381 cmd = &cmdiocb->wqe; 7382 rdp_context->ndlp = lpfc_nlp_get(ndlp); 7383 if (!rdp_context->ndlp) { 7384 kfree(rdp_context); 7385 rjt_err = LSRJT_UNABLE_TPC; 7386 goto error; 7387 } 7388 rdp_context->ox_id = bf_get(wqe_rcvoxid, 7389 &cmd->xmit_els_rsp.wqe_com); 7390 rdp_context->rx_id = bf_get(wqe_ctxt_tag, 7391 &cmd->xmit_els_rsp.wqe_com); 7392 rdp_context->cmpl = lpfc_els_rdp_cmpl; 7393 if (lpfc_get_rdp_info(phba, rdp_context)) { 7394 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS, 7395 "2423 Unable to send mailbox"); 7396 kfree(rdp_context); 7397 rjt_err = LSRJT_UNABLE_TPC; 7398 lpfc_nlp_put(ndlp); 7399 goto error; 7400 } 7401 7402 return 0; 7403 7404 rjt_logerr: 7405 rjt_err = LSRJT_LOGICAL_ERR; 7406 7407 error: 7408 memset(&stat, 0, sizeof(stat)); 7409 stat.un.b.lsRjtRsnCode = rjt_err; 7410 stat.un.b.lsRjtRsnCodeExp = rjt_expl; 7411 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 7412 return 1; 7413 } 7414 7415 7416 static void 7417 lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 7418 { 7419 MAILBOX_t *mb; 7420 IOCB_t *icmd; 7421 union lpfc_wqe128 *wqe; 7422 uint8_t *pcmd; 7423 struct lpfc_iocbq *elsiocb; 7424 struct lpfc_nodelist *ndlp; 7425 struct ls_rjt *stat; 7426 union lpfc_sli4_cfg_shdr *shdr; 7427 struct lpfc_lcb_context *lcb_context; 7428 struct fc_lcb_res_frame *lcb_res; 7429 uint32_t cmdsize, shdr_status, shdr_add_status; 7430 int rc; 7431 7432 mb = &pmb->u.mb; 7433 lcb_context = pmb->ctx_u.lcb; 7434 ndlp = lcb_context->ndlp; 7435 memset(&pmb->ctx_u, 0, sizeof(pmb->ctx_u)); 7436 pmb->ctx_buf = NULL; 7437 7438 shdr = (union lpfc_sli4_cfg_shdr *) 7439 &pmb->u.mqe.un.beacon_config.header.cfg_shdr; 7440 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7441 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7442 7443 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX, 7444 "0194 SET_BEACON_CONFIG mailbox " 7445 "completed with status x%x add_status x%x," 7446 " mbx status x%x\n", 7447 shdr_status, shdr_add_status, mb->mbxStatus); 7448 7449 if ((mb->mbxStatus != MBX_SUCCESS) || shdr_status || 7450 (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE) || 7451 (shdr_add_status == ADD_STATUS_INVALID_REQUEST)) { 7452 mempool_free(pmb, phba->mbox_mem_pool); 7453 goto error; 7454 } 7455 7456 mempool_free(pmb, phba->mbox_mem_pool); 7457 cmdsize = sizeof(struct fc_lcb_res_frame); 7458 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 7459 lpfc_max_els_tries, ndlp, 7460 ndlp->nlp_DID, ELS_CMD_ACC); 7461 7462 /* Decrement the ndlp reference count from previous mbox command */ 7463 lpfc_nlp_put(ndlp); 7464 7465 if (!elsiocb) 7466 goto free_lcb_context; 7467 7468 lcb_res = (struct fc_lcb_res_frame *)elsiocb->cmd_dmabuf->virt; 7469 7470 memset(lcb_res, 0, sizeof(struct fc_lcb_res_frame)); 7471 7472 if (phba->sli_rev == LPFC_SLI_REV4) { 7473 wqe = &elsiocb->wqe; 7474 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, lcb_context->rx_id); 7475 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7476 lcb_context->ox_id); 7477 } else { 7478 icmd = &elsiocb->iocb; 7479 icmd->ulpContext = lcb_context->rx_id; 7480 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id; 7481 } 7482 7483 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7484 *((uint32_t *)(pcmd)) = ELS_CMD_ACC; 7485 lcb_res->lcb_sub_command = lcb_context->sub_command; 7486 lcb_res->lcb_type = lcb_context->type; 7487 lcb_res->capability = lcb_context->capability; 7488 lcb_res->lcb_frequency = lcb_context->frequency; 7489 lcb_res->lcb_duration = lcb_context->duration; 7490 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7491 phba->fc_stat.elsXmitACC++; 7492 7493 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7494 if (!elsiocb->ndlp) { 7495 lpfc_els_free_iocb(phba, elsiocb); 7496 goto out; 7497 } 7498 7499 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7500 if (rc == IOCB_ERROR) { 7501 lpfc_els_free_iocb(phba, elsiocb); 7502 lpfc_nlp_put(ndlp); 7503 } 7504 out: 7505 kfree(lcb_context); 7506 return; 7507 7508 error: 7509 cmdsize = sizeof(struct fc_lcb_res_frame); 7510 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 7511 lpfc_max_els_tries, ndlp, 7512 ndlp->nlp_DID, ELS_CMD_LS_RJT); 7513 lpfc_nlp_put(ndlp); 7514 if (!elsiocb) 7515 goto free_lcb_context; 7516 7517 if (phba->sli_rev == LPFC_SLI_REV4) { 7518 wqe = &elsiocb->wqe; 7519 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, lcb_context->rx_id); 7520 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 7521 lcb_context->ox_id); 7522 } else { 7523 icmd = &elsiocb->iocb; 7524 icmd->ulpContext = lcb_context->rx_id; 7525 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id; 7526 } 7527 7528 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 7529 7530 *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT; 7531 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t)); 7532 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 7533 7534 if (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE) 7535 stat->un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 7536 7537 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 7538 phba->fc_stat.elsXmitLSRJT++; 7539 elsiocb->ndlp = lpfc_nlp_get(ndlp); 7540 if (!elsiocb->ndlp) { 7541 lpfc_els_free_iocb(phba, elsiocb); 7542 goto free_lcb_context; 7543 } 7544 7545 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 7546 if (rc == IOCB_ERROR) { 7547 lpfc_els_free_iocb(phba, elsiocb); 7548 lpfc_nlp_put(ndlp); 7549 } 7550 free_lcb_context: 7551 kfree(lcb_context); 7552 } 7553 7554 static int 7555 lpfc_sli4_set_beacon(struct lpfc_vport *vport, 7556 struct lpfc_lcb_context *lcb_context, 7557 uint32_t beacon_state) 7558 { 7559 struct lpfc_hba *phba = vport->phba; 7560 union lpfc_sli4_cfg_shdr *cfg_shdr; 7561 LPFC_MBOXQ_t *mbox = NULL; 7562 uint32_t len; 7563 int rc; 7564 7565 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7566 if (!mbox) 7567 return 1; 7568 7569 cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr; 7570 len = sizeof(struct lpfc_mbx_set_beacon_config) - 7571 sizeof(struct lpfc_sli4_cfg_mhdr); 7572 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, 7573 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len, 7574 LPFC_SLI4_MBX_EMBED); 7575 mbox->ctx_u.lcb = lcb_context; 7576 mbox->vport = phba->pport; 7577 mbox->mbox_cmpl = lpfc_els_lcb_rsp; 7578 bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config, 7579 phba->sli4_hba.physical_port); 7580 bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config, 7581 beacon_state); 7582 mbox->u.mqe.un.beacon_config.word5 = 0; /* Reserved */ 7583 7584 /* 7585 * Check bv1s bit before issuing the mailbox 7586 * if bv1s == 1, LCB V1 supported 7587 * else, LCB V0 supported 7588 */ 7589 7590 if (phba->sli4_hba.pc_sli4_params.bv1s) { 7591 /* COMMON_SET_BEACON_CONFIG_V1 */ 7592 cfg_shdr->request.word9 = BEACON_VERSION_V1; 7593 lcb_context->capability |= LCB_CAPABILITY_DURATION; 7594 bf_set(lpfc_mbx_set_beacon_port_type, 7595 &mbox->u.mqe.un.beacon_config, 0); 7596 bf_set(lpfc_mbx_set_beacon_duration_v1, 7597 &mbox->u.mqe.un.beacon_config, 7598 be16_to_cpu(lcb_context->duration)); 7599 } else { 7600 /* COMMON_SET_BEACON_CONFIG_V0 */ 7601 if (be16_to_cpu(lcb_context->duration) != 0) { 7602 mempool_free(mbox, phba->mbox_mem_pool); 7603 return 1; 7604 } 7605 cfg_shdr->request.word9 = BEACON_VERSION_V0; 7606 lcb_context->capability &= ~(LCB_CAPABILITY_DURATION); 7607 bf_set(lpfc_mbx_set_beacon_state, 7608 &mbox->u.mqe.un.beacon_config, beacon_state); 7609 bf_set(lpfc_mbx_set_beacon_port_type, 7610 &mbox->u.mqe.un.beacon_config, 1); 7611 bf_set(lpfc_mbx_set_beacon_duration, 7612 &mbox->u.mqe.un.beacon_config, 7613 be16_to_cpu(lcb_context->duration)); 7614 } 7615 7616 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 7617 if (rc == MBX_NOT_FINISHED) { 7618 mempool_free(mbox, phba->mbox_mem_pool); 7619 return 1; 7620 } 7621 7622 return 0; 7623 } 7624 7625 7626 /** 7627 * lpfc_els_rcv_lcb - Process an unsolicited LCB 7628 * @vport: pointer to a host virtual N_Port data structure. 7629 * @cmdiocb: pointer to lpfc command iocb data structure. 7630 * @ndlp: pointer to a node-list data structure. 7631 * 7632 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB. 7633 * First, the payload of the unsolicited LCB is checked. 7634 * Then based on Subcommand beacon will either turn on or off. 7635 * 7636 * Return code 7637 * 0 - Sent the acc response 7638 * 1 - Sent the reject response. 7639 **/ 7640 static int 7641 lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 7642 struct lpfc_nodelist *ndlp) 7643 { 7644 struct lpfc_hba *phba = vport->phba; 7645 struct lpfc_dmabuf *pcmd; 7646 uint8_t *lp; 7647 struct fc_lcb_request_frame *beacon; 7648 struct lpfc_lcb_context *lcb_context; 7649 u8 state, rjt_err = 0; 7650 struct ls_rjt stat; 7651 7652 pcmd = cmdiocb->cmd_dmabuf; 7653 lp = (uint8_t *)pcmd->virt; 7654 beacon = (struct fc_lcb_request_frame *)pcmd->virt; 7655 7656 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 7657 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x " 7658 "type x%x frequency %x duration x%x\n", 7659 lp[0], lp[1], lp[2], 7660 beacon->lcb_command, 7661 beacon->lcb_sub_command, 7662 beacon->lcb_type, 7663 beacon->lcb_frequency, 7664 be16_to_cpu(beacon->lcb_duration)); 7665 7666 if (beacon->lcb_sub_command != LPFC_LCB_ON && 7667 beacon->lcb_sub_command != LPFC_LCB_OFF) { 7668 rjt_err = LSRJT_CMD_UNSUPPORTED; 7669 goto rjt; 7670 } 7671 7672 if (phba->sli_rev < LPFC_SLI_REV4 || 7673 test_bit(HBA_FCOE_MODE, &phba->hba_flag) || 7674 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 7675 LPFC_SLI_INTF_IF_TYPE_2)) { 7676 rjt_err = LSRJT_CMD_UNSUPPORTED; 7677 goto rjt; 7678 } 7679 7680 lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL); 7681 if (!lcb_context) { 7682 rjt_err = LSRJT_UNABLE_TPC; 7683 goto rjt; 7684 } 7685 7686 state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0; 7687 lcb_context->sub_command = beacon->lcb_sub_command; 7688 lcb_context->capability = 0; 7689 lcb_context->type = beacon->lcb_type; 7690 lcb_context->frequency = beacon->lcb_frequency; 7691 lcb_context->duration = beacon->lcb_duration; 7692 lcb_context->ox_id = get_job_rcvoxid(phba, cmdiocb); 7693 lcb_context->rx_id = get_job_ulpcontext(phba, cmdiocb); 7694 lcb_context->ndlp = lpfc_nlp_get(ndlp); 7695 if (!lcb_context->ndlp) { 7696 rjt_err = LSRJT_UNABLE_TPC; 7697 goto rjt_free; 7698 } 7699 7700 if (lpfc_sli4_set_beacon(vport, lcb_context, state)) { 7701 lpfc_printf_vlog(ndlp->vport, KERN_ERR, LOG_TRACE_EVENT, 7702 "0193 failed to send mail box"); 7703 lpfc_nlp_put(ndlp); 7704 rjt_err = LSRJT_UNABLE_TPC; 7705 goto rjt_free; 7706 } 7707 return 0; 7708 7709 rjt_free: 7710 kfree(lcb_context); 7711 rjt: 7712 memset(&stat, 0, sizeof(stat)); 7713 stat.un.b.lsRjtRsnCode = rjt_err; 7714 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 7715 return 1; 7716 } 7717 7718 7719 /** 7720 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport 7721 * @vport: pointer to a host virtual N_Port data structure. 7722 * 7723 * This routine cleans up any Registration State Change Notification 7724 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the 7725 * @vport together with the host_lock is used to prevent multiple thread 7726 * trying to access the RSCN array on a same @vport at the same time. 7727 **/ 7728 void 7729 lpfc_els_flush_rscn(struct lpfc_vport *vport) 7730 { 7731 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7732 struct lpfc_hba *phba = vport->phba; 7733 int i; 7734 7735 spin_lock_irq(shost->host_lock); 7736 if (vport->fc_rscn_flush) { 7737 /* Another thread is walking fc_rscn_id_list on this vport */ 7738 spin_unlock_irq(shost->host_lock); 7739 return; 7740 } 7741 /* Indicate we are walking lpfc_els_flush_rscn on this vport */ 7742 vport->fc_rscn_flush = 1; 7743 spin_unlock_irq(shost->host_lock); 7744 7745 for (i = 0; i < vport->fc_rscn_id_cnt; i++) { 7746 lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); 7747 vport->fc_rscn_id_list[i] = NULL; 7748 } 7749 clear_bit(FC_RSCN_MODE, &vport->fc_flag); 7750 clear_bit(FC_RSCN_DISCOVERY, &vport->fc_flag); 7751 spin_lock_irq(shost->host_lock); 7752 vport->fc_rscn_id_cnt = 0; 7753 spin_unlock_irq(shost->host_lock); 7754 lpfc_can_disctmo(vport); 7755 /* Indicate we are done walking this fc_rscn_id_list */ 7756 vport->fc_rscn_flush = 0; 7757 } 7758 7759 /** 7760 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did 7761 * @vport: pointer to a host virtual N_Port data structure. 7762 * @did: remote destination port identifier. 7763 * 7764 * This routine checks whether there is any pending Registration State 7765 * Configuration Notification (RSCN) to a @did on @vport. 7766 * 7767 * Return code 7768 * None zero - The @did matched with a pending rscn 7769 * 0 - not able to match @did with a pending rscn 7770 **/ 7771 int 7772 lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) 7773 { 7774 D_ID ns_did; 7775 D_ID rscn_did; 7776 uint32_t *lp; 7777 uint32_t payload_len, i; 7778 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7779 7780 ns_did.un.word = did; 7781 7782 /* Never match fabric nodes for RSCNs */ 7783 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) 7784 return 0; 7785 7786 /* If we are doing a FULL RSCN rediscovery, match everything */ 7787 if (test_bit(FC_RSCN_DISCOVERY, &vport->fc_flag)) 7788 return did; 7789 7790 spin_lock_irq(shost->host_lock); 7791 if (vport->fc_rscn_flush) { 7792 /* Another thread is walking fc_rscn_id_list on this vport */ 7793 spin_unlock_irq(shost->host_lock); 7794 return 0; 7795 } 7796 /* Indicate we are walking fc_rscn_id_list on this vport */ 7797 vport->fc_rscn_flush = 1; 7798 spin_unlock_irq(shost->host_lock); 7799 for (i = 0; i < vport->fc_rscn_id_cnt; i++) { 7800 lp = vport->fc_rscn_id_list[i]->virt; 7801 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); 7802 payload_len -= sizeof(uint32_t); /* take off word 0 */ 7803 while (payload_len) { 7804 rscn_did.un.word = be32_to_cpu(*lp++); 7805 payload_len -= sizeof(uint32_t); 7806 switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) { 7807 case RSCN_ADDRESS_FORMAT_PORT: 7808 if ((ns_did.un.b.domain == rscn_did.un.b.domain) 7809 && (ns_did.un.b.area == rscn_did.un.b.area) 7810 && (ns_did.un.b.id == rscn_did.un.b.id)) 7811 goto return_did_out; 7812 break; 7813 case RSCN_ADDRESS_FORMAT_AREA: 7814 if ((ns_did.un.b.domain == rscn_did.un.b.domain) 7815 && (ns_did.un.b.area == rscn_did.un.b.area)) 7816 goto return_did_out; 7817 break; 7818 case RSCN_ADDRESS_FORMAT_DOMAIN: 7819 if (ns_did.un.b.domain == rscn_did.un.b.domain) 7820 goto return_did_out; 7821 break; 7822 case RSCN_ADDRESS_FORMAT_FABRIC: 7823 goto return_did_out; 7824 } 7825 } 7826 } 7827 /* Indicate we are done with walking fc_rscn_id_list on this vport */ 7828 vport->fc_rscn_flush = 0; 7829 return 0; 7830 return_did_out: 7831 /* Indicate we are done with walking fc_rscn_id_list on this vport */ 7832 vport->fc_rscn_flush = 0; 7833 return did; 7834 } 7835 7836 /** 7837 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn 7838 * @vport: pointer to a host virtual N_Port data structure. 7839 * 7840 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the 7841 * state machine for a @vport's nodes that are with pending RSCN (Registration 7842 * State Change Notification). 7843 * 7844 * Return code 7845 * 0 - Successful (currently alway return 0) 7846 **/ 7847 static int 7848 lpfc_rscn_recovery_check(struct lpfc_vport *vport) 7849 { 7850 struct lpfc_nodelist *ndlp = NULL, *n; 7851 7852 /* Move all affected nodes by pending RSCNs to NPR state. */ 7853 list_for_each_entry_safe(ndlp, n, &vport->fc_nodes, nlp_listp) { 7854 if ((ndlp->nlp_state == NLP_STE_UNUSED_NODE) || 7855 !lpfc_rscn_payload_check(vport, ndlp->nlp_DID)) 7856 continue; 7857 7858 /* NVME Target mode does not do RSCN Recovery. */ 7859 if (vport->phba->nvmet_support) 7860 continue; 7861 7862 /* If we are in the process of doing discovery on this 7863 * NPort, let it continue on its own. 7864 */ 7865 switch (ndlp->nlp_state) { 7866 case NLP_STE_PLOGI_ISSUE: 7867 case NLP_STE_ADISC_ISSUE: 7868 case NLP_STE_REG_LOGIN_ISSUE: 7869 case NLP_STE_PRLI_ISSUE: 7870 case NLP_STE_LOGO_ISSUE: 7871 continue; 7872 } 7873 7874 lpfc_disc_state_machine(vport, ndlp, NULL, 7875 NLP_EVT_DEVICE_RECOVERY); 7876 lpfc_cancel_retry_delay_tmo(vport, ndlp); 7877 } 7878 return 0; 7879 } 7880 7881 /** 7882 * lpfc_send_rscn_event - Send an RSCN event to management application 7883 * @vport: pointer to a host virtual N_Port data structure. 7884 * @cmdiocb: pointer to lpfc command iocb data structure. 7885 * 7886 * lpfc_send_rscn_event sends an RSCN netlink event to management 7887 * applications. 7888 */ 7889 static void 7890 lpfc_send_rscn_event(struct lpfc_vport *vport, 7891 struct lpfc_iocbq *cmdiocb) 7892 { 7893 struct lpfc_dmabuf *pcmd; 7894 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7895 uint32_t *payload_ptr; 7896 uint32_t payload_len; 7897 struct lpfc_rscn_event_header *rscn_event_data; 7898 7899 pcmd = cmdiocb->cmd_dmabuf; 7900 payload_ptr = (uint32_t *) pcmd->virt; 7901 payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK); 7902 7903 rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) + 7904 payload_len, GFP_KERNEL); 7905 if (!rscn_event_data) { 7906 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 7907 "0147 Failed to allocate memory for RSCN event\n"); 7908 return; 7909 } 7910 rscn_event_data->event_type = FC_REG_RSCN_EVENT; 7911 rscn_event_data->payload_length = payload_len; 7912 memcpy(rscn_event_data->rscn_payload, payload_ptr, 7913 payload_len); 7914 7915 fc_host_post_vendor_event(shost, 7916 fc_get_event_number(), 7917 sizeof(struct lpfc_rscn_event_header) + payload_len, 7918 (char *)rscn_event_data, 7919 LPFC_NL_VENDOR_ID); 7920 7921 kfree(rscn_event_data); 7922 } 7923 7924 /** 7925 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb 7926 * @vport: pointer to a host virtual N_Port data structure. 7927 * @cmdiocb: pointer to lpfc command iocb data structure. 7928 * @ndlp: pointer to a node-list data structure. 7929 * 7930 * This routine processes an unsolicited RSCN (Registration State Change 7931 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked 7932 * to invoke fc_host_post_event() routine to the FC transport layer. If the 7933 * discover state machine is about to begin discovery, it just accepts the 7934 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only 7935 * contains N_Port IDs for other vports on this HBA, it just accepts the 7936 * RSCN and ignore processing it. If the state machine is in the recovery 7937 * state, the fc_rscn_id_list of this @vport is walked and the 7938 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for 7939 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn() 7940 * routine is invoked to handle the RSCN event. 7941 * 7942 * Return code 7943 * 0 - Just sent the acc response 7944 * 1 - Sent the acc response and waited for name server completion 7945 **/ 7946 static int 7947 lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 7948 struct lpfc_nodelist *ndlp) 7949 { 7950 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7951 struct lpfc_hba *phba = vport->phba; 7952 struct lpfc_dmabuf *pcmd; 7953 uint32_t *lp, *datap; 7954 uint32_t payload_len, length, nportid, *cmd; 7955 int rscn_cnt; 7956 int rscn_id = 0, hba_id = 0; 7957 int i, tmo; 7958 7959 pcmd = cmdiocb->cmd_dmabuf; 7960 lp = (uint32_t *) pcmd->virt; 7961 7962 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); 7963 payload_len -= sizeof(uint32_t); /* take off word 0 */ 7964 /* RSCN received */ 7965 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 7966 "0214 RSCN received Data: x%lx x%x x%x x%x\n", 7967 vport->fc_flag, payload_len, *lp, 7968 vport->fc_rscn_id_cnt); 7969 7970 /* Send an RSCN event to the management application */ 7971 lpfc_send_rscn_event(vport, cmdiocb); 7972 7973 for (i = 0; i < payload_len/sizeof(uint32_t); i++) 7974 fc_host_post_event(shost, fc_get_event_number(), 7975 FCH_EVT_RSCN, lp[i]); 7976 7977 /* Check if RSCN is coming from a direct-connected remote NPort */ 7978 if (test_bit(FC_PT2PT, &vport->fc_flag)) { 7979 /* If so, just ACC it, no other action needed for now */ 7980 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 7981 "2024 pt2pt RSCN %08x Data: x%lx x%x\n", 7982 *lp, vport->fc_flag, payload_len); 7983 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 7984 7985 /* Check to see if we need to NVME rescan this target 7986 * remoteport. 7987 */ 7988 if (ndlp->nlp_fc4_type & NLP_FC4_NVME && 7989 ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY)) 7990 lpfc_nvme_rescan_port(vport, ndlp); 7991 return 0; 7992 } 7993 7994 /* If we are about to begin discovery, just ACC the RSCN. 7995 * Discovery processing will satisfy it. 7996 */ 7997 if (vport->port_state <= LPFC_NS_QRY) { 7998 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 7999 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%lx", 8000 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); 8001 8002 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8003 return 0; 8004 } 8005 8006 /* If this RSCN just contains NPortIDs for other vports on this HBA, 8007 * just ACC and ignore it. 8008 */ 8009 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 8010 !(vport->cfg_peer_port_login)) { 8011 i = payload_len; 8012 datap = lp; 8013 while (i > 0) { 8014 nportid = *datap++; 8015 nportid = ((be32_to_cpu(nportid)) & Mask_DID); 8016 i -= sizeof(uint32_t); 8017 rscn_id++; 8018 if (lpfc_find_vport_by_did(phba, nportid)) 8019 hba_id++; 8020 } 8021 if (rscn_id == hba_id) { 8022 /* ALL NPortIDs in RSCN are on HBA */ 8023 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8024 "0219 Ignore RSCN " 8025 "Data: x%lx x%x x%x x%x\n", 8026 vport->fc_flag, payload_len, 8027 *lp, vport->fc_rscn_id_cnt); 8028 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8029 "RCV RSCN vport: did:x%x/ste:x%x flg:x%lx", 8030 ndlp->nlp_DID, vport->port_state, 8031 ndlp->nlp_flag); 8032 8033 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, 8034 ndlp, NULL); 8035 /* Restart disctmo if its already running */ 8036 if (test_bit(FC_DISC_TMO, &vport->fc_flag)) { 8037 tmo = ((phba->fc_ratov * 3) + 3); 8038 mod_timer(&vport->fc_disctmo, 8039 jiffies + 8040 msecs_to_jiffies(1000 * tmo)); 8041 } 8042 return 0; 8043 } 8044 } 8045 8046 spin_lock_irq(shost->host_lock); 8047 if (vport->fc_rscn_flush) { 8048 /* Another thread is walking fc_rscn_id_list on this vport */ 8049 spin_unlock_irq(shost->host_lock); 8050 set_bit(FC_RSCN_DISCOVERY, &vport->fc_flag); 8051 /* Send back ACC */ 8052 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8053 return 0; 8054 } 8055 /* Indicate we are walking fc_rscn_id_list on this vport */ 8056 vport->fc_rscn_flush = 1; 8057 spin_unlock_irq(shost->host_lock); 8058 /* Get the array count after successfully have the token */ 8059 rscn_cnt = vport->fc_rscn_id_cnt; 8060 /* If we are already processing an RSCN, save the received 8061 * RSCN payload buffer, cmdiocb->cmd_dmabuf to process later. 8062 */ 8063 if (test_bit(FC_RSCN_MODE, &vport->fc_flag) || 8064 test_bit(FC_NDISC_ACTIVE, &vport->fc_flag)) { 8065 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8066 "RCV RSCN defer: did:x%x/ste:x%x flg:x%lx", 8067 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); 8068 8069 set_bit(FC_RSCN_DEFERRED, &vport->fc_flag); 8070 8071 /* Restart disctmo if its already running */ 8072 if (test_bit(FC_DISC_TMO, &vport->fc_flag)) { 8073 tmo = ((phba->fc_ratov * 3) + 3); 8074 mod_timer(&vport->fc_disctmo, 8075 jiffies + msecs_to_jiffies(1000 * tmo)); 8076 } 8077 if ((rscn_cnt < FC_MAX_HOLD_RSCN) && 8078 !test_bit(FC_RSCN_DISCOVERY, &vport->fc_flag)) { 8079 set_bit(FC_RSCN_MODE, &vport->fc_flag); 8080 if (rscn_cnt) { 8081 cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; 8082 length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); 8083 } 8084 if ((rscn_cnt) && 8085 (payload_len + length <= LPFC_BPL_SIZE)) { 8086 *cmd &= ELS_CMD_MASK; 8087 *cmd |= cpu_to_be32(payload_len + length); 8088 memcpy(((uint8_t *)cmd) + length, lp, 8089 payload_len); 8090 } else { 8091 vport->fc_rscn_id_list[rscn_cnt] = pcmd; 8092 vport->fc_rscn_id_cnt++; 8093 /* If we zero, cmdiocb->cmd_dmabuf, the calling 8094 * routine will not try to free it. 8095 */ 8096 cmdiocb->cmd_dmabuf = NULL; 8097 } 8098 /* Deferred RSCN */ 8099 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8100 "0235 Deferred RSCN " 8101 "Data: x%x x%lx x%x\n", 8102 vport->fc_rscn_id_cnt, vport->fc_flag, 8103 vport->port_state); 8104 } else { 8105 set_bit(FC_RSCN_DISCOVERY, &vport->fc_flag); 8106 /* ReDiscovery RSCN */ 8107 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8108 "0234 ReDiscovery RSCN " 8109 "Data: x%x x%lx x%x\n", 8110 vport->fc_rscn_id_cnt, vport->fc_flag, 8111 vport->port_state); 8112 } 8113 /* Indicate we are done walking fc_rscn_id_list on this vport */ 8114 vport->fc_rscn_flush = 0; 8115 /* Send back ACC */ 8116 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8117 /* send RECOVERY event for ALL nodes that match RSCN payload */ 8118 lpfc_rscn_recovery_check(vport); 8119 return 0; 8120 } 8121 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 8122 "RCV RSCN: did:x%x/ste:x%x flg:x%lx", 8123 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); 8124 8125 set_bit(FC_RSCN_MODE, &vport->fc_flag); 8126 vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; 8127 /* Indicate we are done walking fc_rscn_id_list on this vport */ 8128 vport->fc_rscn_flush = 0; 8129 /* 8130 * If we zero, cmdiocb->cmd_dmabuf, the calling routine will 8131 * not try to free it. 8132 */ 8133 cmdiocb->cmd_dmabuf = NULL; 8134 lpfc_set_disctmo(vport); 8135 /* Send back ACC */ 8136 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8137 /* send RECOVERY event for ALL nodes that match RSCN payload */ 8138 lpfc_rscn_recovery_check(vport); 8139 return lpfc_els_handle_rscn(vport); 8140 } 8141 8142 /** 8143 * lpfc_els_handle_rscn - Handle rscn for a vport 8144 * @vport: pointer to a host virtual N_Port data structure. 8145 * 8146 * This routine handles the Registration State Configuration Notification 8147 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall 8148 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise, 8149 * if the ndlp to NameServer exists, a Common Transport (CT) command to the 8150 * NameServer shall be issued. If CT command to the NameServer fails to be 8151 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any 8152 * RSCN activities with the @vport. 8153 * 8154 * Return code 8155 * 0 - Cleaned up rscn on the @vport 8156 * 1 - Wait for plogi to name server before proceed 8157 **/ 8158 int 8159 lpfc_els_handle_rscn(struct lpfc_vport *vport) 8160 { 8161 struct lpfc_nodelist *ndlp; 8162 struct lpfc_hba *phba = vport->phba; 8163 8164 /* Ignore RSCN if the port is being torn down. */ 8165 if (test_bit(FC_UNLOADING, &vport->load_flag)) { 8166 lpfc_els_flush_rscn(vport); 8167 return 0; 8168 } 8169 8170 /* Start timer for RSCN processing */ 8171 lpfc_set_disctmo(vport); 8172 8173 /* RSCN processed */ 8174 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 8175 "0215 RSCN processed Data: x%lx x%x x%x x%x x%x x%x\n", 8176 vport->fc_flag, 0, vport->fc_rscn_id_cnt, 8177 vport->port_state, vport->num_disc_nodes, 8178 vport->gidft_inp); 8179 8180 /* To process RSCN, first compare RSCN data with NameServer */ 8181 vport->fc_ns_retry = 0; 8182 vport->num_disc_nodes = 0; 8183 8184 ndlp = lpfc_findnode_did(vport, NameServer_DID); 8185 if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { 8186 /* Good ndlp, issue CT Request to NameServer. Need to 8187 * know how many gidfts were issued. If none, then just 8188 * flush the RSCN. Otherwise, the outstanding requests 8189 * need to complete. 8190 */ 8191 if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_FT) { 8192 if (lpfc_issue_gidft(vport) > 0) 8193 return 1; 8194 } else if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_PT) { 8195 if (lpfc_issue_gidpt(vport) > 0) 8196 return 1; 8197 } else { 8198 return 1; 8199 } 8200 } else { 8201 /* Nameserver login in question. Revalidate. */ 8202 if (ndlp) { 8203 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; 8204 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 8205 } else { 8206 ndlp = lpfc_nlp_init(vport, NameServer_DID); 8207 if (!ndlp) { 8208 lpfc_els_flush_rscn(vport); 8209 return 0; 8210 } 8211 ndlp->nlp_prev_state = ndlp->nlp_state; 8212 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 8213 } 8214 ndlp->nlp_type |= NLP_FABRIC; 8215 lpfc_issue_els_plogi(vport, NameServer_DID, 0); 8216 /* Wait for NameServer login cmpl before we can 8217 * continue 8218 */ 8219 return 1; 8220 } 8221 8222 lpfc_els_flush_rscn(vport); 8223 return 0; 8224 } 8225 8226 /** 8227 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb 8228 * @vport: pointer to a host virtual N_Port data structure. 8229 * @cmdiocb: pointer to lpfc command iocb data structure. 8230 * @ndlp: pointer to a node-list data structure. 8231 * 8232 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS 8233 * unsolicited event. An unsolicited FLOGI can be received in a point-to- 8234 * point topology. As an unsolicited FLOGI should not be received in a loop 8235 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The 8236 * lpfc_check_sparm() routine is invoked to check the parameters in the 8237 * unsolicited FLOGI. If parameters validation failed, the routine 8238 * lpfc_els_rsp_reject() shall be called with reject reason code set to 8239 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the 8240 * FLOGI shall be compared with the Port WWN of the @vport to determine who 8241 * will initiate PLOGI. The higher lexicographical value party shall has 8242 * higher priority (as the winning port) and will initiate PLOGI and 8243 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result 8244 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI 8245 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI. 8246 * 8247 * Return code 8248 * 0 - Successfully processed the unsolicited flogi 8249 * 1 - Failed to process the unsolicited flogi 8250 **/ 8251 static int 8252 lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8253 struct lpfc_nodelist *ndlp) 8254 { 8255 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8256 struct lpfc_hba *phba = vport->phba; 8257 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; 8258 uint32_t *lp = (uint32_t *) pcmd->virt; 8259 union lpfc_wqe128 *wqe = &cmdiocb->wqe; 8260 struct serv_parm *sp; 8261 LPFC_MBOXQ_t *mbox; 8262 uint32_t cmd, did; 8263 int rc; 8264 unsigned long fc_flag = 0; 8265 uint32_t port_state = 0; 8266 8267 /* Clear external loopback plug detected flag */ 8268 phba->link_flag &= ~LS_EXTERNAL_LOOPBACK; 8269 8270 cmd = *lp++; 8271 sp = (struct serv_parm *) lp; 8272 8273 /* FLOGI received */ 8274 8275 lpfc_set_disctmo(vport); 8276 8277 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 8278 /* We should never receive a FLOGI in loop mode, ignore it */ 8279 did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest); 8280 8281 /* An FLOGI ELS command <elsCmd> was received from DID <did> in 8282 Loop Mode */ 8283 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 8284 "0113 An FLOGI ELS command x%x was " 8285 "received from DID x%x in Loop Mode\n", 8286 cmd, did); 8287 return 1; 8288 } 8289 8290 (void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1); 8291 8292 /* 8293 * If our portname is greater than the remote portname, 8294 * then we initiate Nport login. 8295 */ 8296 8297 rc = memcmp(&vport->fc_portname, &sp->portName, 8298 sizeof(struct lpfc_name)); 8299 8300 if (!rc) { 8301 if (phba->sli_rev < LPFC_SLI_REV4) { 8302 mbox = mempool_alloc(phba->mbox_mem_pool, 8303 GFP_KERNEL); 8304 if (!mbox) 8305 return 1; 8306 lpfc_linkdown(phba); 8307 lpfc_init_link(phba, mbox, 8308 phba->cfg_topology, 8309 phba->cfg_link_speed); 8310 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 8311 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 8312 mbox->vport = vport; 8313 rc = lpfc_sli_issue_mbox(phba, mbox, 8314 MBX_NOWAIT); 8315 lpfc_set_loopback_flag(phba); 8316 if (rc == MBX_NOT_FINISHED) 8317 mempool_free(mbox, phba->mbox_mem_pool); 8318 return 1; 8319 } 8320 8321 /* External loopback plug insertion detected */ 8322 phba->link_flag |= LS_EXTERNAL_LOOPBACK; 8323 8324 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_LIBDFC, 8325 "1119 External Loopback plug detected\n"); 8326 8327 /* abort the flogi coming back to ourselves 8328 * due to external loopback on the port. 8329 */ 8330 lpfc_els_abort_flogi(phba); 8331 return 0; 8332 8333 } else if (rc > 0) { /* greater than */ 8334 set_bit(FC_PT2PT_PLOGI, &vport->fc_flag); 8335 8336 /* If we have the high WWPN we can assign our own 8337 * myDID; otherwise, we have to WAIT for a PLOGI 8338 * from the remote NPort to find out what it 8339 * will be. 8340 */ 8341 vport->fc_myDID = PT2PT_LocalID; 8342 } else { 8343 vport->fc_myDID = PT2PT_RemoteID; 8344 } 8345 8346 /* 8347 * The vport state should go to LPFC_FLOGI only 8348 * AFTER we issue a FLOGI, not receive one. 8349 */ 8350 spin_lock_irq(shost->host_lock); 8351 fc_flag = vport->fc_flag; 8352 port_state = vport->port_state; 8353 /* Acking an unsol FLOGI. Count 1 for link bounce 8354 * work-around. 8355 */ 8356 vport->rcv_flogi_cnt++; 8357 spin_unlock_irq(shost->host_lock); 8358 set_bit(FC_PT2PT, &vport->fc_flag); 8359 clear_bit(FC_FABRIC, &vport->fc_flag); 8360 clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag); 8361 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 8362 "3311 Rcv Flogi PS x%x new PS x%x " 8363 "fc_flag x%lx new fc_flag x%lx\n", 8364 port_state, vport->port_state, 8365 fc_flag, vport->fc_flag); 8366 8367 /* 8368 * We temporarily set fc_myDID to make it look like we are 8369 * a Fabric. This is done just so we end up with the right 8370 * did / sid on the FLOGI ACC rsp. 8371 */ 8372 did = vport->fc_myDID; 8373 vport->fc_myDID = Fabric_DID; 8374 8375 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 8376 8377 /* Defer ACC response until AFTER we issue a FLOGI */ 8378 if (!test_bit(HBA_FLOGI_ISSUED, &phba->hba_flag)) { 8379 phba->defer_flogi_acc.rx_id = bf_get(wqe_ctxt_tag, 8380 &wqe->xmit_els_rsp.wqe_com); 8381 phba->defer_flogi_acc.ox_id = bf_get(wqe_rcvoxid, 8382 &wqe->xmit_els_rsp.wqe_com); 8383 8384 vport->fc_myDID = did; 8385 8386 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 8387 "3344 Deferring FLOGI ACC: rx_id: x%x," 8388 " ox_id: x%x, hba_flag x%lx\n", 8389 phba->defer_flogi_acc.rx_id, 8390 phba->defer_flogi_acc.ox_id, phba->hba_flag); 8391 8392 phba->defer_flogi_acc.flag = true; 8393 8394 /* This nlp_get is paired with nlp_puts that reset the 8395 * defer_flogi_acc.flag back to false. We need to retain 8396 * a kref on the ndlp until the deferred FLOGI ACC is 8397 * processed or cancelled. 8398 */ 8399 phba->defer_flogi_acc.ndlp = lpfc_nlp_get(ndlp); 8400 return 0; 8401 } 8402 8403 /* Send back ACC */ 8404 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL); 8405 8406 /* Now lets put fc_myDID back to what its supposed to be */ 8407 vport->fc_myDID = did; 8408 8409 return 0; 8410 } 8411 8412 /** 8413 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb 8414 * @vport: pointer to a host virtual N_Port data structure. 8415 * @cmdiocb: pointer to lpfc command iocb data structure. 8416 * @ndlp: pointer to a node-list data structure. 8417 * 8418 * This routine processes Request Node Identification Data (RNID) IOCB 8419 * received as an ELS unsolicited event. Only when the RNID specified format 8420 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data) 8421 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to 8422 * Accept (ACC) the RNID ELS command. All the other RNID formats are 8423 * rejected by invoking the lpfc_els_rsp_reject() routine. 8424 * 8425 * Return code 8426 * 0 - Successfully processed rnid iocb (currently always return 0) 8427 **/ 8428 static int 8429 lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8430 struct lpfc_nodelist *ndlp) 8431 { 8432 struct lpfc_dmabuf *pcmd; 8433 uint32_t *lp; 8434 RNID *rn; 8435 struct ls_rjt stat; 8436 8437 pcmd = cmdiocb->cmd_dmabuf; 8438 lp = (uint32_t *) pcmd->virt; 8439 8440 lp++; 8441 rn = (RNID *) lp; 8442 8443 /* RNID received */ 8444 8445 switch (rn->Format) { 8446 case 0: 8447 case RNID_TOPOLOGY_DISC: 8448 /* Send back ACC */ 8449 lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); 8450 break; 8451 default: 8452 /* Reject this request because format not supported */ 8453 stat.un.b.lsRjtRsvd0 = 0; 8454 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8455 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8456 stat.un.b.vendorUnique = 0; 8457 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 8458 NULL); 8459 } 8460 return 0; 8461 } 8462 8463 /** 8464 * lpfc_els_rcv_echo - Process an unsolicited echo iocb 8465 * @vport: pointer to a host virtual N_Port data structure. 8466 * @cmdiocb: pointer to lpfc command iocb data structure. 8467 * @ndlp: pointer to a node-list data structure. 8468 * 8469 * Return code 8470 * 0 - Successfully processed echo iocb (currently always return 0) 8471 **/ 8472 static int 8473 lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8474 struct lpfc_nodelist *ndlp) 8475 { 8476 uint8_t *pcmd; 8477 8478 pcmd = (uint8_t *)cmdiocb->cmd_dmabuf->virt; 8479 8480 /* skip over first word of echo command to find echo data */ 8481 pcmd += sizeof(uint32_t); 8482 8483 lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp); 8484 return 0; 8485 } 8486 8487 /** 8488 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb 8489 * @vport: pointer to a host virtual N_Port data structure. 8490 * @cmdiocb: pointer to lpfc command iocb data structure. 8491 * @ndlp: pointer to a node-list data structure. 8492 * 8493 * This routine processes a Link Incident Report Registration(LIRR) IOCB 8494 * received as an ELS unsolicited event. Currently, this function just invokes 8495 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally. 8496 * 8497 * Return code 8498 * 0 - Successfully processed lirr iocb (currently always return 0) 8499 **/ 8500 static int 8501 lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8502 struct lpfc_nodelist *ndlp) 8503 { 8504 struct ls_rjt stat; 8505 8506 /* For now, unconditionally reject this command */ 8507 stat.un.b.lsRjtRsvd0 = 0; 8508 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8509 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8510 stat.un.b.vendorUnique = 0; 8511 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 8512 return 0; 8513 } 8514 8515 /** 8516 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb 8517 * @vport: pointer to a host virtual N_Port data structure. 8518 * @cmdiocb: pointer to lpfc command iocb data structure. 8519 * @ndlp: pointer to a node-list data structure. 8520 * 8521 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB 8522 * received as an ELS unsolicited event. A request to RRQ shall only 8523 * be accepted if the Originator Nx_Port N_Port_ID or the Responder 8524 * Nx_Port N_Port_ID of the target Exchange is the same as the 8525 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is 8526 * not accepted, an LS_RJT with reason code "Unable to perform 8527 * command request" and reason code explanation "Invalid Originator 8528 * S_ID" shall be returned. For now, we just unconditionally accept 8529 * RRQ from the target. 8530 **/ 8531 static void 8532 lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8533 struct lpfc_nodelist *ndlp) 8534 { 8535 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 8536 if (vport->phba->sli_rev == LPFC_SLI_REV4) 8537 lpfc_els_clear_rrq(vport, cmdiocb, ndlp); 8538 } 8539 8540 /** 8541 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd 8542 * @phba: pointer to lpfc hba data structure. 8543 * @pmb: pointer to the driver internal queue element for mailbox command. 8544 * 8545 * This routine is the completion callback function for the MBX_READ_LNK_STAT 8546 * mailbox command. This callback function is to actually send the Accept 8547 * (ACC) response to a Read Link Status (RLS) unsolicited IOCB event. It 8548 * collects the link statistics from the completion of the MBX_READ_LNK_STAT 8549 * mailbox command, constructs the RLS response with the link statistics 8550 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC 8551 * response to the RLS. 8552 * 8553 * Note that the ndlp reference count will be incremented by 1 for holding the 8554 * ndlp and the reference to ndlp will be stored into the ndlp field of 8555 * the IOCB for the completion callback function to the RLS Accept Response 8556 * ELS IOCB command. 8557 * 8558 **/ 8559 static void 8560 lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 8561 { 8562 int rc = 0; 8563 MAILBOX_t *mb; 8564 IOCB_t *icmd; 8565 union lpfc_wqe128 *wqe; 8566 struct RLS_RSP *rls_rsp; 8567 uint8_t *pcmd; 8568 struct lpfc_iocbq *elsiocb; 8569 struct lpfc_nodelist *ndlp; 8570 uint16_t oxid; 8571 uint16_t rxid; 8572 uint32_t cmdsize; 8573 u32 ulp_context; 8574 8575 mb = &pmb->u.mb; 8576 8577 ndlp = pmb->ctx_ndlp; 8578 rxid = (uint16_t)(pmb->ctx_u.ox_rx_id & 0xffff); 8579 oxid = (uint16_t)((pmb->ctx_u.ox_rx_id >> 16) & 0xffff); 8580 memset(&pmb->ctx_u, 0, sizeof(pmb->ctx_u)); 8581 pmb->ctx_ndlp = NULL; 8582 8583 if (mb->mbxStatus) { 8584 mempool_free(pmb, phba->mbox_mem_pool); 8585 return; 8586 } 8587 8588 cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t); 8589 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 8590 lpfc_max_els_tries, ndlp, 8591 ndlp->nlp_DID, ELS_CMD_ACC); 8592 8593 /* Decrement the ndlp reference count from previous mbox command */ 8594 lpfc_nlp_put(ndlp); 8595 8596 if (!elsiocb) { 8597 mempool_free(pmb, phba->mbox_mem_pool); 8598 return; 8599 } 8600 8601 ulp_context = get_job_ulpcontext(phba, elsiocb); 8602 if (phba->sli_rev == LPFC_SLI_REV4) { 8603 wqe = &elsiocb->wqe; 8604 /* Xri / rx_id */ 8605 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, rxid); 8606 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, oxid); 8607 } else { 8608 icmd = &elsiocb->iocb; 8609 icmd->ulpContext = rxid; 8610 icmd->unsli3.rcvsli3.ox_id = oxid; 8611 } 8612 8613 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 8614 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 8615 pcmd += sizeof(uint32_t); /* Skip past command */ 8616 rls_rsp = (struct RLS_RSP *)pcmd; 8617 8618 rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); 8619 rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); 8620 rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); 8621 rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); 8622 rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); 8623 rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); 8624 mempool_free(pmb, phba->mbox_mem_pool); 8625 /* Xmit ELS RLS ACC response tag <ulpIoTag> */ 8626 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, 8627 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, " 8628 "did x%x, nlp_flag x%lx, nlp_state x%x, rpi x%x\n", 8629 elsiocb->iotag, ulp_context, 8630 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 8631 ndlp->nlp_rpi); 8632 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 8633 phba->fc_stat.elsXmitACC++; 8634 elsiocb->ndlp = lpfc_nlp_get(ndlp); 8635 if (!elsiocb->ndlp) { 8636 lpfc_els_free_iocb(phba, elsiocb); 8637 return; 8638 } 8639 8640 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 8641 if (rc == IOCB_ERROR) { 8642 lpfc_els_free_iocb(phba, elsiocb); 8643 lpfc_nlp_put(ndlp); 8644 } 8645 return; 8646 } 8647 8648 /** 8649 * lpfc_els_rcv_rls - Process an unsolicited rls iocb 8650 * @vport: pointer to a host virtual N_Port data structure. 8651 * @cmdiocb: pointer to lpfc command iocb data structure. 8652 * @ndlp: pointer to a node-list data structure. 8653 * 8654 * This routine processes Read Link Status (RLS) IOCB received as an 8655 * ELS unsolicited event. It first checks the remote port state. If the 8656 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE 8657 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject 8658 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command 8659 * for reading the HBA link statistics. It is for the callback function, 8660 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command 8661 * to actually sending out RPL Accept (ACC) response. 8662 * 8663 * Return codes 8664 * 0 - Successfully processed rls iocb (currently always return 0) 8665 **/ 8666 static int 8667 lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8668 struct lpfc_nodelist *ndlp) 8669 { 8670 struct lpfc_hba *phba = vport->phba; 8671 LPFC_MBOXQ_t *mbox; 8672 struct ls_rjt stat; 8673 u32 ctx = get_job_ulpcontext(phba, cmdiocb); 8674 u32 ox_id = get_job_rcvoxid(phba, cmdiocb); 8675 8676 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 8677 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) 8678 /* reject the unsolicited RLS request and done with it */ 8679 goto reject_out; 8680 8681 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); 8682 if (mbox) { 8683 lpfc_read_lnk_stat(phba, mbox); 8684 mbox->ctx_u.ox_rx_id = ox_id << 16 | ctx; 8685 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 8686 if (!mbox->ctx_ndlp) 8687 goto node_err; 8688 mbox->vport = vport; 8689 mbox->mbox_cmpl = lpfc_els_rsp_rls_acc; 8690 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 8691 != MBX_NOT_FINISHED) 8692 /* Mbox completion will send ELS Response */ 8693 return 0; 8694 /* Decrement reference count used for the failed mbox 8695 * command. 8696 */ 8697 lpfc_nlp_put(ndlp); 8698 node_err: 8699 mempool_free(mbox, phba->mbox_mem_pool); 8700 } 8701 reject_out: 8702 /* issue rejection response */ 8703 stat.un.b.lsRjtRsvd0 = 0; 8704 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8705 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8706 stat.un.b.vendorUnique = 0; 8707 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 8708 return 0; 8709 } 8710 8711 /** 8712 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb 8713 * @vport: pointer to a host virtual N_Port data structure. 8714 * @cmdiocb: pointer to lpfc command iocb data structure. 8715 * @ndlp: pointer to a node-list data structure. 8716 * 8717 * This routine processes Read Timout Value (RTV) IOCB received as an 8718 * ELS unsolicited event. It first checks the remote port state. If the 8719 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE 8720 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject 8721 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout 8722 * Value (RTV) unsolicited IOCB event. 8723 * 8724 * Note that the ndlp reference count will be incremented by 1 for holding the 8725 * ndlp and the reference to ndlp will be stored into the ndlp field of 8726 * the IOCB for the completion callback function to the RTV Accept Response 8727 * ELS IOCB command. 8728 * 8729 * Return codes 8730 * 0 - Successfully processed rtv iocb (currently always return 0) 8731 **/ 8732 static int 8733 lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 8734 struct lpfc_nodelist *ndlp) 8735 { 8736 int rc = 0; 8737 IOCB_t *icmd; 8738 union lpfc_wqe128 *wqe; 8739 struct lpfc_hba *phba = vport->phba; 8740 struct ls_rjt stat; 8741 struct RTV_RSP *rtv_rsp; 8742 uint8_t *pcmd; 8743 struct lpfc_iocbq *elsiocb; 8744 uint32_t cmdsize; 8745 u32 ulp_context; 8746 8747 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 8748 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) 8749 /* reject the unsolicited RTV request and done with it */ 8750 goto reject_out; 8751 8752 cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t); 8753 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, 8754 lpfc_max_els_tries, ndlp, 8755 ndlp->nlp_DID, ELS_CMD_ACC); 8756 8757 if (!elsiocb) 8758 return 1; 8759 8760 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 8761 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 8762 pcmd += sizeof(uint32_t); /* Skip past command */ 8763 8764 ulp_context = get_job_ulpcontext(phba, elsiocb); 8765 /* use the command's xri in the response */ 8766 if (phba->sli_rev == LPFC_SLI_REV4) { 8767 wqe = &elsiocb->wqe; 8768 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 8769 get_job_ulpcontext(phba, cmdiocb)); 8770 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 8771 get_job_rcvoxid(phba, cmdiocb)); 8772 } else { 8773 icmd = &elsiocb->iocb; 8774 icmd->ulpContext = get_job_ulpcontext(phba, cmdiocb); 8775 icmd->unsli3.rcvsli3.ox_id = get_job_rcvoxid(phba, cmdiocb); 8776 } 8777 8778 rtv_rsp = (struct RTV_RSP *)pcmd; 8779 8780 /* populate RTV payload */ 8781 rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */ 8782 rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov); 8783 bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0); 8784 bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */ 8785 rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov); 8786 8787 /* Xmit ELS RLS ACC response tag <ulpIoTag> */ 8788 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, 8789 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, " 8790 "did x%x, nlp_flag x%lx, nlp_state x%x, rpi x%x, " 8791 "Data: x%x x%x x%x\n", 8792 elsiocb->iotag, ulp_context, 8793 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 8794 ndlp->nlp_rpi, 8795 rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov); 8796 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 8797 phba->fc_stat.elsXmitACC++; 8798 elsiocb->ndlp = lpfc_nlp_get(ndlp); 8799 if (!elsiocb->ndlp) { 8800 lpfc_els_free_iocb(phba, elsiocb); 8801 return 0; 8802 } 8803 8804 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 8805 if (rc == IOCB_ERROR) { 8806 lpfc_els_free_iocb(phba, elsiocb); 8807 lpfc_nlp_put(ndlp); 8808 } 8809 return 0; 8810 8811 reject_out: 8812 /* issue rejection response */ 8813 stat.un.b.lsRjtRsvd0 = 0; 8814 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 8815 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 8816 stat.un.b.vendorUnique = 0; 8817 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 8818 return 0; 8819 } 8820 8821 /* lpfc_issue_els_rrq - Process an unsolicited rrq iocb 8822 * @vport: pointer to a host virtual N_Port data structure. 8823 * @ndlp: pointer to a node-list data structure. 8824 * @did: DID of the target. 8825 * @rrq: Pointer to the rrq struct. 8826 * 8827 * Build a ELS RRQ command and send it to the target. If the issue_iocb is 8828 * successful, the completion handler will clear the RRQ. 8829 * 8830 * Return codes 8831 * 0 - Successfully sent rrq els iocb. 8832 * 1 - Failed to send rrq els iocb. 8833 **/ 8834 static int 8835 lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 8836 uint32_t did, struct lpfc_node_rrq *rrq) 8837 { 8838 struct lpfc_hba *phba = vport->phba; 8839 struct RRQ *els_rrq; 8840 struct lpfc_iocbq *elsiocb; 8841 uint8_t *pcmd; 8842 uint16_t cmdsize; 8843 int ret; 8844 8845 if (!ndlp) 8846 return 1; 8847 8848 /* If ndlp is not NULL, we will bump the reference count on it */ 8849 cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ)); 8850 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did, 8851 ELS_CMD_RRQ); 8852 if (!elsiocb) 8853 return 1; 8854 8855 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 8856 8857 /* For RRQ request, remainder of payload is Exchange IDs */ 8858 *((uint32_t *) (pcmd)) = ELS_CMD_RRQ; 8859 pcmd += sizeof(uint32_t); 8860 els_rrq = (struct RRQ *) pcmd; 8861 8862 bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]); 8863 bf_set(rrq_rxid, els_rrq, rrq->rxid); 8864 bf_set(rrq_did, els_rrq, vport->fc_myDID); 8865 els_rrq->rrq = cpu_to_be32(els_rrq->rrq); 8866 els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg); 8867 8868 8869 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 8870 "Issue RRQ: did:x%x", 8871 did, rrq->xritag, rrq->rxid); 8872 elsiocb->context_un.rrq = rrq; 8873 elsiocb->cmd_cmpl = lpfc_cmpl_els_rrq; 8874 8875 elsiocb->ndlp = lpfc_nlp_get(ndlp); 8876 if (!elsiocb->ndlp) 8877 goto io_err; 8878 8879 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 8880 if (ret == IOCB_ERROR) { 8881 lpfc_nlp_put(ndlp); 8882 goto io_err; 8883 } 8884 return 0; 8885 8886 io_err: 8887 lpfc_els_free_iocb(phba, elsiocb); 8888 return 1; 8889 } 8890 8891 /** 8892 * lpfc_send_rrq - Sends ELS RRQ if needed. 8893 * @phba: pointer to lpfc hba data structure. 8894 * @rrq: pointer to the active rrq. 8895 * 8896 * This routine will call the lpfc_issue_els_rrq if the rrq is 8897 * still active for the xri. If this function returns a failure then 8898 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq. 8899 * 8900 * Returns 0 Success. 8901 * 1 Failure. 8902 **/ 8903 int 8904 lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq) 8905 { 8906 struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport, 8907 rrq->nlp_DID); 8908 if (!ndlp) 8909 return 1; 8910 8911 if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag)) 8912 return lpfc_issue_els_rrq(rrq->vport, ndlp, 8913 rrq->nlp_DID, rrq); 8914 else 8915 return 1; 8916 } 8917 8918 /** 8919 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command 8920 * @vport: pointer to a host virtual N_Port data structure. 8921 * @cmdsize: size of the ELS command. 8922 * @oldiocb: pointer to the original lpfc command iocb data structure. 8923 * @ndlp: pointer to a node-list data structure. 8924 * 8925 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command. 8926 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL. 8927 * 8928 * Note that the ndlp reference count will be incremented by 1 for holding the 8929 * ndlp and the reference to ndlp will be stored into the ndlp field of 8930 * the IOCB for the completion callback function to the RPL Accept Response 8931 * ELS command. 8932 * 8933 * Return code 8934 * 0 - Successfully issued ACC RPL ELS command 8935 * 1 - Failed to issue ACC RPL ELS command 8936 **/ 8937 static int 8938 lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, 8939 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) 8940 { 8941 int rc = 0; 8942 struct lpfc_hba *phba = vport->phba; 8943 IOCB_t *icmd; 8944 union lpfc_wqe128 *wqe; 8945 RPL_RSP rpl_rsp; 8946 struct lpfc_iocbq *elsiocb; 8947 uint8_t *pcmd; 8948 u32 ulp_context; 8949 8950 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, 8951 ndlp->nlp_DID, ELS_CMD_ACC); 8952 8953 if (!elsiocb) 8954 return 1; 8955 8956 ulp_context = get_job_ulpcontext(phba, elsiocb); 8957 if (phba->sli_rev == LPFC_SLI_REV4) { 8958 wqe = &elsiocb->wqe; 8959 /* Xri / rx_id */ 8960 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 8961 get_job_ulpcontext(phba, oldiocb)); 8962 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, 8963 get_job_rcvoxid(phba, oldiocb)); 8964 } else { 8965 icmd = &elsiocb->iocb; 8966 icmd->ulpContext = get_job_ulpcontext(phba, oldiocb); 8967 icmd->unsli3.rcvsli3.ox_id = get_job_rcvoxid(phba, oldiocb); 8968 } 8969 8970 pcmd = elsiocb->cmd_dmabuf->virt; 8971 *((uint32_t *) (pcmd)) = ELS_CMD_ACC; 8972 pcmd += sizeof(uint16_t); 8973 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); 8974 pcmd += sizeof(uint16_t); 8975 8976 /* Setup the RPL ACC payload */ 8977 rpl_rsp.listLen = be32_to_cpu(1); 8978 rpl_rsp.index = 0; 8979 rpl_rsp.port_num_blk.portNum = 0; 8980 rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); 8981 memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, 8982 sizeof(struct lpfc_name)); 8983 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); 8984 /* Xmit ELS RPL ACC response tag <ulpIoTag> */ 8985 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 8986 "0120 Xmit ELS RPL ACC response tag x%x " 8987 "xri x%x, did x%x, nlp_flag x%lx, nlp_state x%x, " 8988 "rpi x%x\n", 8989 elsiocb->iotag, ulp_context, 8990 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 8991 ndlp->nlp_rpi); 8992 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; 8993 phba->fc_stat.elsXmitACC++; 8994 elsiocb->ndlp = lpfc_nlp_get(ndlp); 8995 if (!elsiocb->ndlp) { 8996 lpfc_els_free_iocb(phba, elsiocb); 8997 return 1; 8998 } 8999 9000 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 9001 if (rc == IOCB_ERROR) { 9002 lpfc_els_free_iocb(phba, elsiocb); 9003 lpfc_nlp_put(ndlp); 9004 return 1; 9005 } 9006 9007 return 0; 9008 } 9009 9010 /** 9011 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb 9012 * @vport: pointer to a host virtual N_Port data structure. 9013 * @cmdiocb: pointer to lpfc command iocb data structure. 9014 * @ndlp: pointer to a node-list data structure. 9015 * 9016 * This routine processes Read Port List (RPL) IOCB received as an ELS 9017 * unsolicited event. It first checks the remote port state. If the remote 9018 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it 9019 * invokes the lpfc_els_rsp_reject() routine to send reject response. 9020 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine 9021 * to accept the RPL. 9022 * 9023 * Return code 9024 * 0 - Successfully processed rpl iocb (currently always return 0) 9025 **/ 9026 static int 9027 lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9028 struct lpfc_nodelist *ndlp) 9029 { 9030 struct lpfc_dmabuf *pcmd; 9031 uint32_t *lp; 9032 uint32_t maxsize; 9033 uint16_t cmdsize; 9034 RPL *rpl; 9035 struct ls_rjt stat; 9036 9037 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 9038 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { 9039 /* issue rejection response */ 9040 stat.un.b.lsRjtRsvd0 = 0; 9041 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 9042 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 9043 stat.un.b.vendorUnique = 0; 9044 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 9045 NULL); 9046 /* rejected the unsolicited RPL request and done with it */ 9047 return 0; 9048 } 9049 9050 pcmd = cmdiocb->cmd_dmabuf; 9051 lp = (uint32_t *) pcmd->virt; 9052 rpl = (RPL *) (lp + 1); 9053 maxsize = be32_to_cpu(rpl->maxsize); 9054 9055 /* We support only one port */ 9056 if ((rpl->index == 0) && 9057 ((maxsize == 0) || 9058 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { 9059 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); 9060 } else { 9061 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); 9062 } 9063 lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); 9064 9065 return 0; 9066 } 9067 9068 /** 9069 * lpfc_els_rcv_farp - Process an unsolicited farp request els command 9070 * @vport: pointer to a virtual N_Port data structure. 9071 * @cmdiocb: pointer to lpfc command iocb data structure. 9072 * @ndlp: pointer to a node-list data structure. 9073 * 9074 * This routine processes Fibre Channel Address Resolution Protocol 9075 * (FARP) Request IOCB received as an ELS unsolicited event. Currently, 9076 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such, 9077 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the 9078 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the 9079 * remote PortName is compared against the FC PortName stored in the @vport 9080 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is 9081 * compared against the FC NodeName stored in the @vport data structure. 9082 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the 9083 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is 9084 * invoked to send out FARP Response to the remote node. Before sending the 9085 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP 9086 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi() 9087 * routine is invoked to log into the remote port first. 9088 * 9089 * Return code 9090 * 0 - Either the FARP Match Mode not supported or successfully processed 9091 **/ 9092 static int 9093 lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9094 struct lpfc_nodelist *ndlp) 9095 { 9096 struct lpfc_dmabuf *pcmd; 9097 uint32_t *lp; 9098 FARP *fp; 9099 uint32_t cnt, did; 9100 9101 did = get_job_els_rsp64_did(vport->phba, cmdiocb); 9102 pcmd = cmdiocb->cmd_dmabuf; 9103 lp = (uint32_t *) pcmd->virt; 9104 9105 lp++; 9106 fp = (FARP *) lp; 9107 /* FARP-REQ received from DID <did> */ 9108 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9109 "0601 FARP-REQ received from DID x%x\n", did); 9110 /* We will only support match on WWPN or WWNN */ 9111 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { 9112 return 0; 9113 } 9114 9115 cnt = 0; 9116 /* If this FARP command is searching for my portname */ 9117 if (fp->Mflags & FARP_MATCH_PORT) { 9118 if (memcmp(&fp->RportName, &vport->fc_portname, 9119 sizeof(struct lpfc_name)) == 0) 9120 cnt = 1; 9121 } 9122 9123 /* If this FARP command is searching for my nodename */ 9124 if (fp->Mflags & FARP_MATCH_NODE) { 9125 if (memcmp(&fp->RnodeName, &vport->fc_nodename, 9126 sizeof(struct lpfc_name)) == 0) 9127 cnt = 1; 9128 } 9129 9130 if (cnt) { 9131 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || 9132 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { 9133 /* Log back into the node before sending the FARP. */ 9134 if (fp->Rflags & FARP_REQUEST_PLOGI) { 9135 ndlp->nlp_prev_state = ndlp->nlp_state; 9136 lpfc_nlp_set_state(vport, ndlp, 9137 NLP_STE_PLOGI_ISSUE); 9138 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 9139 } 9140 9141 /* Send a FARP response to that node */ 9142 if (fp->Rflags & FARP_REQUEST_FARPR) 9143 lpfc_issue_els_farpr(vport, did, 0); 9144 } 9145 } 9146 return 0; 9147 } 9148 9149 /** 9150 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb 9151 * @vport: pointer to a host virtual N_Port data structure. 9152 * @cmdiocb: pointer to lpfc command iocb data structure. 9153 * @ndlp: pointer to a node-list data structure. 9154 * 9155 * This routine processes Fibre Channel Address Resolution Protocol 9156 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply 9157 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept 9158 * the FARP response request. 9159 * 9160 * Return code 9161 * 0 - Successfully processed FARPR IOCB (currently always return 0) 9162 **/ 9163 static int 9164 lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9165 struct lpfc_nodelist *ndlp) 9166 { 9167 uint32_t did; 9168 9169 did = get_job_els_rsp64_did(vport->phba, cmdiocb); 9170 9171 /* FARP-RSP received from DID <did> */ 9172 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9173 "0600 FARP-RSP received from DID x%x\n", did); 9174 /* ACCEPT the Farp resp request */ 9175 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 9176 9177 return 0; 9178 } 9179 9180 /** 9181 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command 9182 * @vport: pointer to a host virtual N_Port data structure. 9183 * @cmdiocb: pointer to lpfc command iocb data structure. 9184 * @fan_ndlp: pointer to a node-list data structure. 9185 * 9186 * This routine processes a Fabric Address Notification (FAN) IOCB 9187 * command received as an ELS unsolicited event. The FAN ELS command will 9188 * only be processed on a physical port (i.e., the @vport represents the 9189 * physical port). The fabric NodeName and PortName from the FAN IOCB are 9190 * compared against those in the phba data structure. If any of those is 9191 * different, the lpfc_initial_flogi() routine is invoked to initialize 9192 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise, 9193 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine 9194 * is invoked to register login to the fabric. 9195 * 9196 * Return code 9197 * 0 - Successfully processed fan iocb (currently always return 0). 9198 **/ 9199 static int 9200 lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9201 struct lpfc_nodelist *fan_ndlp) 9202 { 9203 struct lpfc_hba *phba = vport->phba; 9204 uint32_t *lp; 9205 FAN *fp; 9206 9207 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); 9208 lp = (uint32_t *)cmdiocb->cmd_dmabuf->virt; 9209 fp = (FAN *) ++lp; 9210 /* FAN received; Fan does not have a reply sequence */ 9211 if ((vport == phba->pport) && 9212 (vport->port_state == LPFC_LOCAL_CFG_LINK)) { 9213 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, 9214 sizeof(struct lpfc_name))) || 9215 (memcmp(&phba->fc_fabparam.portName, &fp->FportName, 9216 sizeof(struct lpfc_name)))) { 9217 /* This port has switched fabrics. FLOGI is required */ 9218 lpfc_issue_init_vfi(vport); 9219 } else { 9220 /* FAN verified - skip FLOGI */ 9221 vport->fc_myDID = vport->fc_prevDID; 9222 if (phba->sli_rev < LPFC_SLI_REV4) 9223 lpfc_issue_fabric_reglogin(vport); 9224 else { 9225 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9226 "3138 Need register VFI: (x%x/%x)\n", 9227 vport->fc_prevDID, vport->fc_myDID); 9228 lpfc_issue_reg_vfi(vport); 9229 } 9230 } 9231 } 9232 return 0; 9233 } 9234 9235 /** 9236 * lpfc_els_rcv_edc - Process an unsolicited EDC iocb 9237 * @vport: pointer to a host virtual N_Port data structure. 9238 * @cmdiocb: pointer to lpfc command iocb data structure. 9239 * @ndlp: pointer to a node-list data structure. 9240 * 9241 * Return code 9242 * 0 - Successfully processed echo iocb (currently always return 0) 9243 **/ 9244 static int 9245 lpfc_els_rcv_edc(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 9246 struct lpfc_nodelist *ndlp) 9247 { 9248 struct lpfc_hba *phba = vport->phba; 9249 struct fc_els_edc *edc_req; 9250 struct fc_tlv_desc *tlv; 9251 uint8_t *payload; 9252 uint32_t *ptr, dtag; 9253 const char *dtag_nm; 9254 int desc_cnt = 0, bytes_remain; 9255 struct fc_diag_lnkflt_desc *plnkflt; 9256 9257 payload = cmdiocb->cmd_dmabuf->virt; 9258 9259 edc_req = (struct fc_els_edc *)payload; 9260 bytes_remain = be32_to_cpu(edc_req->desc_len); 9261 9262 ptr = (uint32_t *)payload; 9263 lpfc_printf_vlog(vport, KERN_INFO, 9264 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9265 "3319 Rcv EDC payload len %d: x%x x%x x%x\n", 9266 bytes_remain, be32_to_cpu(*ptr), 9267 be32_to_cpu(*(ptr + 1)), be32_to_cpu(*(ptr + 2))); 9268 9269 /* No signal support unless there is a congestion descriptor */ 9270 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; 9271 phba->cgn_sig_freq = 0; 9272 phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN; 9273 9274 if (bytes_remain <= 0) 9275 goto out; 9276 9277 tlv = edc_req->desc; 9278 9279 /* 9280 * cycle through EDC diagnostic descriptors to find the 9281 * congestion signaling capability descriptor 9282 */ 9283 while (bytes_remain) { 9284 if (bytes_remain < FC_TLV_DESC_HDR_SZ) { 9285 lpfc_printf_log(phba, KERN_WARNING, 9286 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9287 "6464 Truncated TLV hdr on " 9288 "Diagnostic descriptor[%d]\n", 9289 desc_cnt); 9290 goto out; 9291 } 9292 9293 dtag = be32_to_cpu(tlv->desc_tag); 9294 switch (dtag) { 9295 case ELS_DTAG_LNK_FAULT_CAP: 9296 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 9297 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 9298 sizeof(struct fc_diag_lnkflt_desc)) { 9299 lpfc_printf_log(phba, KERN_WARNING, 9300 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9301 "6465 Truncated Link Fault Diagnostic " 9302 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 9303 desc_cnt, bytes_remain, 9304 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 9305 sizeof(struct fc_diag_lnkflt_desc)); 9306 goto out; 9307 } 9308 plnkflt = (struct fc_diag_lnkflt_desc *)tlv; 9309 lpfc_printf_log(phba, KERN_INFO, 9310 LOG_ELS | LOG_LDS_EVENT, 9311 "4626 Link Fault Desc Data: x%08x len x%x " 9312 "da x%x dd x%x interval x%x\n", 9313 be32_to_cpu(plnkflt->desc_tag), 9314 be32_to_cpu(plnkflt->desc_len), 9315 be32_to_cpu( 9316 plnkflt->degrade_activate_threshold), 9317 be32_to_cpu( 9318 plnkflt->degrade_deactivate_threshold), 9319 be32_to_cpu(plnkflt->fec_degrade_interval)); 9320 break; 9321 case ELS_DTAG_CG_SIGNAL_CAP: 9322 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || 9323 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != 9324 sizeof(struct fc_diag_cg_sig_desc)) { 9325 lpfc_printf_log( 9326 phba, KERN_WARNING, LOG_CGN_MGMT, 9327 "6466 Truncated cgn signal Diagnostic " 9328 "descriptor[%d]: %d vs 0x%zx 0x%zx\n", 9329 desc_cnt, bytes_remain, 9330 FC_TLV_DESC_SZ_FROM_LENGTH(tlv), 9331 sizeof(struct fc_diag_cg_sig_desc)); 9332 goto out; 9333 } 9334 9335 phba->cgn_reg_fpin = phba->cgn_init_reg_fpin; 9336 phba->cgn_reg_signal = phba->cgn_init_reg_signal; 9337 9338 /* We start negotiation with lpfc_fabric_cgn_frequency. 9339 * When we process the EDC, we will settle on the 9340 * higher frequency. 9341 */ 9342 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency; 9343 9344 lpfc_least_capable_settings( 9345 phba, (struct fc_diag_cg_sig_desc *)tlv); 9346 break; 9347 default: 9348 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 9349 lpfc_printf_log(phba, KERN_WARNING, 9350 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, 9351 "6467 unknown Diagnostic " 9352 "Descriptor[%d]: tag x%x (%s)\n", 9353 desc_cnt, dtag, dtag_nm); 9354 } 9355 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv); 9356 tlv = fc_tlv_next_desc(tlv); 9357 desc_cnt++; 9358 } 9359 out: 9360 /* Need to send back an ACC */ 9361 lpfc_issue_els_edc_rsp(vport, cmdiocb, ndlp); 9362 9363 lpfc_config_cgn_signal(phba); 9364 return 0; 9365 } 9366 9367 /** 9368 * lpfc_els_timeout - Handler funciton to the els timer 9369 * @t: timer context used to obtain the vport. 9370 * 9371 * This routine is invoked by the ELS timer after timeout. It posts the ELS 9372 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port 9373 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake 9374 * up the worker thread. It is for the worker thread to invoke the routine 9375 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO. 9376 **/ 9377 void 9378 lpfc_els_timeout(struct timer_list *t) 9379 { 9380 struct lpfc_vport *vport = from_timer(vport, t, els_tmofunc); 9381 struct lpfc_hba *phba = vport->phba; 9382 uint32_t tmo_posted; 9383 unsigned long iflag; 9384 9385 spin_lock_irqsave(&vport->work_port_lock, iflag); 9386 tmo_posted = vport->work_port_events & WORKER_ELS_TMO; 9387 if (!tmo_posted && !test_bit(FC_UNLOADING, &vport->load_flag)) 9388 vport->work_port_events |= WORKER_ELS_TMO; 9389 spin_unlock_irqrestore(&vport->work_port_lock, iflag); 9390 9391 if (!tmo_posted && !test_bit(FC_UNLOADING, &vport->load_flag)) 9392 lpfc_worker_wake_up(phba); 9393 return; 9394 } 9395 9396 9397 /** 9398 * lpfc_els_timeout_handler - Process an els timeout event 9399 * @vport: pointer to a virtual N_Port data structure. 9400 * 9401 * This routine is the actual handler function that processes an ELS timeout 9402 * event. It walks the ELS ring to get and abort all the IOCBs (except the 9403 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by 9404 * invoking the lpfc_sli_issue_abort_iotag() routine. 9405 **/ 9406 void 9407 lpfc_els_timeout_handler(struct lpfc_vport *vport) 9408 { 9409 struct lpfc_hba *phba = vport->phba; 9410 struct lpfc_sli_ring *pring; 9411 struct lpfc_iocbq *tmp_iocb, *piocb; 9412 IOCB_t *cmd = NULL; 9413 struct lpfc_dmabuf *pcmd; 9414 uint32_t els_command = 0; 9415 uint32_t timeout; 9416 uint32_t remote_ID = 0xffffffff; 9417 LIST_HEAD(abort_list); 9418 u32 ulp_command = 0, ulp_context = 0, did = 0, iotag = 0; 9419 9420 9421 timeout = (uint32_t)(phba->fc_ratov << 1); 9422 9423 pring = lpfc_phba_elsring(phba); 9424 if (unlikely(!pring)) 9425 return; 9426 9427 if (test_bit(FC_UNLOADING, &phba->pport->load_flag)) 9428 return; 9429 9430 spin_lock_irq(&phba->hbalock); 9431 if (phba->sli_rev == LPFC_SLI_REV4) 9432 spin_lock(&pring->ring_lock); 9433 9434 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { 9435 ulp_command = get_job_cmnd(phba, piocb); 9436 ulp_context = get_job_ulpcontext(phba, piocb); 9437 did = get_job_els_rsp64_did(phba, piocb); 9438 9439 if (phba->sli_rev == LPFC_SLI_REV4) { 9440 iotag = get_wqe_reqtag(piocb); 9441 } else { 9442 cmd = &piocb->iocb; 9443 iotag = cmd->ulpIoTag; 9444 } 9445 9446 if ((piocb->cmd_flag & LPFC_IO_LIBDFC) != 0 || 9447 ulp_command == CMD_ABORT_XRI_CX || 9448 ulp_command == CMD_ABORT_XRI_CN || 9449 ulp_command == CMD_CLOSE_XRI_CN) 9450 continue; 9451 9452 if (piocb->vport != vport) 9453 continue; 9454 9455 pcmd = piocb->cmd_dmabuf; 9456 if (pcmd) 9457 els_command = *(uint32_t *) (pcmd->virt); 9458 9459 if (els_command == ELS_CMD_FARP || 9460 els_command == ELS_CMD_FARPR || 9461 els_command == ELS_CMD_FDISC) 9462 continue; 9463 9464 if (piocb->drvrTimeout > 0) { 9465 if (piocb->drvrTimeout >= timeout) 9466 piocb->drvrTimeout -= timeout; 9467 else 9468 piocb->drvrTimeout = 0; 9469 continue; 9470 } 9471 9472 remote_ID = 0xffffffff; 9473 if (ulp_command != CMD_GEN_REQUEST64_CR) { 9474 remote_ID = did; 9475 } else { 9476 struct lpfc_nodelist *ndlp; 9477 ndlp = __lpfc_findnode_rpi(vport, ulp_context); 9478 if (ndlp) 9479 remote_ID = ndlp->nlp_DID; 9480 } 9481 list_add_tail(&piocb->dlist, &abort_list); 9482 } 9483 if (phba->sli_rev == LPFC_SLI_REV4) 9484 spin_unlock(&pring->ring_lock); 9485 spin_unlock_irq(&phba->hbalock); 9486 9487 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { 9488 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9489 "0127 ELS timeout Data: x%x x%x x%x " 9490 "x%x\n", els_command, 9491 remote_ID, ulp_command, iotag); 9492 9493 spin_lock_irq(&phba->hbalock); 9494 list_del_init(&piocb->dlist); 9495 lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL); 9496 spin_unlock_irq(&phba->hbalock); 9497 } 9498 9499 /* Make sure HBA is alive */ 9500 lpfc_issue_hb_tmo(phba); 9501 9502 if (!list_empty(&pring->txcmplq)) 9503 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag)) 9504 mod_timer(&vport->els_tmofunc, 9505 jiffies + msecs_to_jiffies(1000 * timeout)); 9506 } 9507 9508 /** 9509 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport 9510 * @vport: pointer to a host virtual N_Port data structure. 9511 * 9512 * This routine is used to clean up all the outstanding ELS commands on a 9513 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport() 9514 * routine. After that, it walks the ELS transmit queue to remove all the 9515 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For 9516 * the IOCBs with a non-NULL completion callback function, the callback 9517 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and 9518 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion 9519 * callback function, the IOCB will simply be released. Finally, it walks 9520 * the ELS transmit completion queue to issue an abort IOCB to any transmit 9521 * completion queue IOCB that is associated with the @vport and is not 9522 * an IOCB from libdfc (i.e., the management plane IOCBs that are not 9523 * part of the discovery state machine) out to HBA by invoking the 9524 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the 9525 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee 9526 * the IOCBs are aborted when this function returns. 9527 **/ 9528 void 9529 lpfc_els_flush_cmd(struct lpfc_vport *vport) 9530 { 9531 LIST_HEAD(abort_list); 9532 LIST_HEAD(cancel_list); 9533 struct lpfc_hba *phba = vport->phba; 9534 struct lpfc_sli_ring *pring; 9535 struct lpfc_iocbq *tmp_iocb, *piocb; 9536 u32 ulp_command; 9537 unsigned long iflags = 0; 9538 bool mbx_tmo_err; 9539 9540 lpfc_fabric_abort_vport(vport); 9541 9542 /* 9543 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate 9544 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag 9545 * ultimately grabs the ring_lock, the driver must splice the list into 9546 * a working list and release the locks before calling the abort. 9547 */ 9548 spin_lock_irqsave(&phba->hbalock, iflags); 9549 pring = lpfc_phba_elsring(phba); 9550 9551 /* Bail out if we've no ELS wq, like in PCI error recovery case. */ 9552 if (unlikely(!pring)) { 9553 spin_unlock_irqrestore(&phba->hbalock, iflags); 9554 return; 9555 } 9556 9557 if (phba->sli_rev == LPFC_SLI_REV4) 9558 spin_lock(&pring->ring_lock); 9559 9560 mbx_tmo_err = test_bit(MBX_TMO_ERR, &phba->bit_flags); 9561 /* First we need to issue aborts to outstanding cmds on txcmpl */ 9562 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { 9563 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 9564 "2243 iotag = 0x%x cmd_flag = 0x%x " 9565 "ulp_command = 0x%x this_vport %x " 9566 "sli_flag = 0x%x\n", 9567 piocb->iotag, piocb->cmd_flag, 9568 get_job_cmnd(phba, piocb), 9569 (piocb->vport == vport), 9570 phba->sli.sli_flag); 9571 9572 if (piocb->vport != vport) 9573 continue; 9574 9575 if ((phba->sli.sli_flag & LPFC_SLI_ACTIVE) && !mbx_tmo_err) { 9576 if (piocb->cmd_flag & LPFC_IO_LIBDFC) 9577 continue; 9578 if (piocb->cmd_flag & LPFC_DRIVER_ABORTED) 9579 continue; 9580 } 9581 9582 /* On the ELS ring we can have ELS_REQUESTs, ELS_RSPs, 9583 * or GEN_REQUESTs waiting for a CQE response. 9584 */ 9585 ulp_command = get_job_cmnd(phba, piocb); 9586 if (ulp_command == CMD_ELS_REQUEST64_WQE || 9587 ulp_command == CMD_XMIT_ELS_RSP64_WQE) { 9588 list_add_tail(&piocb->dlist, &abort_list); 9589 9590 /* If the link is down when flushing ELS commands 9591 * the firmware will not complete them till after 9592 * the link comes back up. This may confuse 9593 * discovery for the new link up, so we need to 9594 * change the compl routine to just clean up the iocb 9595 * and avoid any retry logic. 9596 */ 9597 if (phba->link_state == LPFC_LINK_DOWN) 9598 piocb->cmd_cmpl = lpfc_cmpl_els_link_down; 9599 } else if (ulp_command == CMD_GEN_REQUEST64_CR || 9600 mbx_tmo_err) 9601 list_add_tail(&piocb->dlist, &abort_list); 9602 } 9603 9604 if (phba->sli_rev == LPFC_SLI_REV4) 9605 spin_unlock(&pring->ring_lock); 9606 spin_unlock_irqrestore(&phba->hbalock, iflags); 9607 9608 /* Abort each txcmpl iocb on aborted list and remove the dlist links. */ 9609 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { 9610 spin_lock_irqsave(&phba->hbalock, iflags); 9611 list_del_init(&piocb->dlist); 9612 if (mbx_tmo_err || !(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) 9613 list_move_tail(&piocb->list, &cancel_list); 9614 else 9615 lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL); 9616 9617 spin_unlock_irqrestore(&phba->hbalock, iflags); 9618 } 9619 if (!list_empty(&cancel_list)) 9620 lpfc_sli_cancel_iocbs(phba, &cancel_list, IOSTAT_LOCAL_REJECT, 9621 IOERR_SLI_ABORTED); 9622 else 9623 /* Make sure HBA is alive */ 9624 lpfc_issue_hb_tmo(phba); 9625 9626 if (!list_empty(&abort_list)) 9627 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9628 "3387 abort list for txq not empty\n"); 9629 INIT_LIST_HEAD(&abort_list); 9630 9631 spin_lock_irqsave(&phba->hbalock, iflags); 9632 if (phba->sli_rev == LPFC_SLI_REV4) 9633 spin_lock(&pring->ring_lock); 9634 9635 /* No need to abort the txq list, 9636 * just queue them up for lpfc_sli_cancel_iocbs 9637 */ 9638 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { 9639 ulp_command = get_job_cmnd(phba, piocb); 9640 9641 if (piocb->cmd_flag & LPFC_IO_LIBDFC) 9642 continue; 9643 9644 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ 9645 if (ulp_command == CMD_QUE_RING_BUF_CN || 9646 ulp_command == CMD_QUE_RING_BUF64_CN || 9647 ulp_command == CMD_CLOSE_XRI_CN || 9648 ulp_command == CMD_ABORT_XRI_CN || 9649 ulp_command == CMD_ABORT_XRI_CX) 9650 continue; 9651 9652 if (piocb->vport != vport) 9653 continue; 9654 9655 list_del_init(&piocb->list); 9656 list_add_tail(&piocb->list, &abort_list); 9657 } 9658 9659 /* The same holds true for any FLOGI/FDISC on the fabric_iocb_list */ 9660 if (vport == phba->pport) { 9661 list_for_each_entry_safe(piocb, tmp_iocb, 9662 &phba->fabric_iocb_list, list) { 9663 list_del_init(&piocb->list); 9664 list_add_tail(&piocb->list, &abort_list); 9665 } 9666 } 9667 9668 if (phba->sli_rev == LPFC_SLI_REV4) 9669 spin_unlock(&pring->ring_lock); 9670 spin_unlock_irqrestore(&phba->hbalock, iflags); 9671 9672 /* Cancel all the IOCBs from the completions list */ 9673 lpfc_sli_cancel_iocbs(phba, &abort_list, 9674 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 9675 9676 return; 9677 } 9678 9679 /** 9680 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA 9681 * @phba: pointer to lpfc hba data structure. 9682 * 9683 * This routine is used to clean up all the outstanding ELS commands on a 9684 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba() 9685 * routine. After that, it walks the ELS transmit queue to remove all the 9686 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For 9687 * the IOCBs with the completion callback function associated, the callback 9688 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and 9689 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion 9690 * callback function associated, the IOCB will simply be released. Finally, 9691 * it walks the ELS transmit completion queue to issue an abort IOCB to any 9692 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the 9693 * management plane IOCBs that are not part of the discovery state machine) 9694 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine. 9695 **/ 9696 void 9697 lpfc_els_flush_all_cmd(struct lpfc_hba *phba) 9698 { 9699 struct lpfc_vport *vport; 9700 9701 spin_lock_irq(&phba->port_list_lock); 9702 list_for_each_entry(vport, &phba->port_list, listentry) 9703 lpfc_els_flush_cmd(vport); 9704 spin_unlock_irq(&phba->port_list_lock); 9705 9706 return; 9707 } 9708 9709 /** 9710 * lpfc_send_els_failure_event - Posts an ELS command failure event 9711 * @phba: Pointer to hba context object. 9712 * @cmdiocbp: Pointer to command iocb which reported error. 9713 * @rspiocbp: Pointer to response iocb which reported error. 9714 * 9715 * This function sends an event when there is an ELS command 9716 * failure. 9717 **/ 9718 void 9719 lpfc_send_els_failure_event(struct lpfc_hba *phba, 9720 struct lpfc_iocbq *cmdiocbp, 9721 struct lpfc_iocbq *rspiocbp) 9722 { 9723 struct lpfc_vport *vport = cmdiocbp->vport; 9724 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 9725 struct lpfc_lsrjt_event lsrjt_event; 9726 struct lpfc_fabric_event_header fabric_event; 9727 struct ls_rjt stat; 9728 struct lpfc_nodelist *ndlp; 9729 uint32_t *pcmd; 9730 u32 ulp_status, ulp_word4; 9731 9732 ndlp = cmdiocbp->ndlp; 9733 if (!ndlp) 9734 return; 9735 9736 ulp_status = get_job_ulpstatus(phba, rspiocbp); 9737 ulp_word4 = get_job_word4(phba, rspiocbp); 9738 9739 if (ulp_status == IOSTAT_LS_RJT) { 9740 lsrjt_event.header.event_type = FC_REG_ELS_EVENT; 9741 lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV; 9742 memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname, 9743 sizeof(struct lpfc_name)); 9744 memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename, 9745 sizeof(struct lpfc_name)); 9746 pcmd = (uint32_t *)cmdiocbp->cmd_dmabuf->virt; 9747 lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0; 9748 stat.un.ls_rjt_error_be = cpu_to_be32(ulp_word4); 9749 lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode; 9750 lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp; 9751 fc_host_post_vendor_event(shost, 9752 fc_get_event_number(), 9753 sizeof(lsrjt_event), 9754 (char *)&lsrjt_event, 9755 LPFC_NL_VENDOR_ID); 9756 return; 9757 } 9758 if (ulp_status == IOSTAT_NPORT_BSY || 9759 ulp_status == IOSTAT_FABRIC_BSY) { 9760 fabric_event.event_type = FC_REG_FABRIC_EVENT; 9761 if (ulp_status == IOSTAT_NPORT_BSY) 9762 fabric_event.subcategory = LPFC_EVENT_PORT_BUSY; 9763 else 9764 fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY; 9765 memcpy(fabric_event.wwpn, &ndlp->nlp_portname, 9766 sizeof(struct lpfc_name)); 9767 memcpy(fabric_event.wwnn, &ndlp->nlp_nodename, 9768 sizeof(struct lpfc_name)); 9769 fc_host_post_vendor_event(shost, 9770 fc_get_event_number(), 9771 sizeof(fabric_event), 9772 (char *)&fabric_event, 9773 LPFC_NL_VENDOR_ID); 9774 return; 9775 } 9776 9777 } 9778 9779 /** 9780 * lpfc_send_els_event - Posts unsolicited els event 9781 * @vport: Pointer to vport object. 9782 * @ndlp: Pointer FC node object. 9783 * @payload: ELS command code type. 9784 * 9785 * This function posts an event when there is an incoming 9786 * unsolicited ELS command. 9787 **/ 9788 static void 9789 lpfc_send_els_event(struct lpfc_vport *vport, 9790 struct lpfc_nodelist *ndlp, 9791 uint32_t *payload) 9792 { 9793 struct lpfc_els_event_header *els_data = NULL; 9794 struct lpfc_logo_event *logo_data = NULL; 9795 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 9796 9797 if (*payload == ELS_CMD_LOGO) { 9798 logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL); 9799 if (!logo_data) { 9800 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9801 "0148 Failed to allocate memory " 9802 "for LOGO event\n"); 9803 return; 9804 } 9805 els_data = &logo_data->header; 9806 } else { 9807 els_data = kmalloc(sizeof(struct lpfc_els_event_header), 9808 GFP_KERNEL); 9809 if (!els_data) { 9810 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 9811 "0149 Failed to allocate memory " 9812 "for ELS event\n"); 9813 return; 9814 } 9815 } 9816 els_data->event_type = FC_REG_ELS_EVENT; 9817 switch (*payload) { 9818 case ELS_CMD_PLOGI: 9819 els_data->subcategory = LPFC_EVENT_PLOGI_RCV; 9820 break; 9821 case ELS_CMD_PRLO: 9822 els_data->subcategory = LPFC_EVENT_PRLO_RCV; 9823 break; 9824 case ELS_CMD_ADISC: 9825 els_data->subcategory = LPFC_EVENT_ADISC_RCV; 9826 break; 9827 case ELS_CMD_LOGO: 9828 els_data->subcategory = LPFC_EVENT_LOGO_RCV; 9829 /* Copy the WWPN in the LOGO payload */ 9830 memcpy(logo_data->logo_wwpn, &payload[2], 9831 sizeof(struct lpfc_name)); 9832 break; 9833 default: 9834 kfree(els_data); 9835 return; 9836 } 9837 memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); 9838 memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); 9839 if (*payload == ELS_CMD_LOGO) { 9840 fc_host_post_vendor_event(shost, 9841 fc_get_event_number(), 9842 sizeof(struct lpfc_logo_event), 9843 (char *)logo_data, 9844 LPFC_NL_VENDOR_ID); 9845 kfree(logo_data); 9846 } else { 9847 fc_host_post_vendor_event(shost, 9848 fc_get_event_number(), 9849 sizeof(struct lpfc_els_event_header), 9850 (char *)els_data, 9851 LPFC_NL_VENDOR_ID); 9852 kfree(els_data); 9853 } 9854 9855 return; 9856 } 9857 9858 9859 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_li_event_nm, fc_fpin_li_event_types, 9860 FC_FPIN_LI_EVT_TYPES_INIT); 9861 9862 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_deli_event_nm, fc_fpin_deli_event_types, 9863 FC_FPIN_DELI_EVT_TYPES_INIT); 9864 9865 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_congn_event_nm, fc_fpin_congn_event_types, 9866 FC_FPIN_CONGN_EVT_TYPES_INIT); 9867 9868 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_congn_severity_nm, 9869 fc_fpin_congn_severity_types, 9870 FC_FPIN_CONGN_SEVERITY_INIT); 9871 9872 9873 /** 9874 * lpfc_display_fpin_wwpn - Display WWPNs accessible by the attached port 9875 * @phba: Pointer to phba object. 9876 * @wwnlist: Pointer to list of WWPNs in FPIN payload 9877 * @cnt: count of WWPNs in FPIN payload 9878 * 9879 * This routine is called by LI and PC descriptors. 9880 * Limit the number of WWPNs displayed to 6 log messages, 6 per log message 9881 */ 9882 static void 9883 lpfc_display_fpin_wwpn(struct lpfc_hba *phba, __be64 *wwnlist, u32 cnt) 9884 { 9885 char buf[LPFC_FPIN_WWPN_LINE_SZ]; 9886 __be64 wwn; 9887 u64 wwpn; 9888 int i, len; 9889 int line = 0; 9890 int wcnt = 0; 9891 bool endit = false; 9892 9893 len = scnprintf(buf, LPFC_FPIN_WWPN_LINE_SZ, "Accessible WWPNs:"); 9894 for (i = 0; i < cnt; i++) { 9895 /* Are we on the last WWPN */ 9896 if (i == (cnt - 1)) 9897 endit = true; 9898 9899 /* Extract the next WWPN from the payload */ 9900 wwn = *wwnlist++; 9901 wwpn = be64_to_cpu(wwn); 9902 len += scnprintf(buf + len, LPFC_FPIN_WWPN_LINE_SZ - len, 9903 " %016llx", wwpn); 9904 9905 /* Log a message if we are on the last WWPN 9906 * or if we hit the max allowed per message. 9907 */ 9908 wcnt++; 9909 if (wcnt == LPFC_FPIN_WWPN_LINE_CNT || endit) { 9910 buf[len] = 0; 9911 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 9912 "4686 %s\n", buf); 9913 9914 /* Check if we reached the last WWPN */ 9915 if (endit) 9916 return; 9917 9918 /* Limit the number of log message displayed per FPIN */ 9919 line++; 9920 if (line == LPFC_FPIN_WWPN_NUM_LINE) { 9921 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 9922 "4687 %d WWPNs Truncated\n", 9923 cnt - i - 1); 9924 return; 9925 } 9926 9927 /* Start over with next log message */ 9928 wcnt = 0; 9929 len = scnprintf(buf, LPFC_FPIN_WWPN_LINE_SZ, 9930 "Additional WWPNs:"); 9931 } 9932 } 9933 } 9934 9935 /** 9936 * lpfc_els_rcv_fpin_li - Process an FPIN Link Integrity Event. 9937 * @phba: Pointer to phba object. 9938 * @tlv: Pointer to the Link Integrity Notification Descriptor. 9939 * 9940 * This function processes a Link Integrity FPIN event by logging a message. 9941 **/ 9942 static void 9943 lpfc_els_rcv_fpin_li(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 9944 { 9945 struct fc_fn_li_desc *li = (struct fc_fn_li_desc *)tlv; 9946 const char *li_evt_str; 9947 u32 li_evt, cnt; 9948 9949 li_evt = be16_to_cpu(li->event_type); 9950 li_evt_str = lpfc_get_fpin_li_event_nm(li_evt); 9951 cnt = be32_to_cpu(li->pname_count); 9952 9953 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 9954 "4680 FPIN Link Integrity %s (x%x) " 9955 "Detecting PN x%016llx Attached PN x%016llx " 9956 "Duration %d mSecs Count %d Port Cnt %d\n", 9957 li_evt_str, li_evt, 9958 be64_to_cpu(li->detecting_wwpn), 9959 be64_to_cpu(li->attached_wwpn), 9960 be32_to_cpu(li->event_threshold), 9961 be32_to_cpu(li->event_count), cnt); 9962 9963 lpfc_display_fpin_wwpn(phba, (__be64 *)&li->pname_list, cnt); 9964 } 9965 9966 /** 9967 * lpfc_els_rcv_fpin_del - Process an FPIN Delivery Event. 9968 * @phba: Pointer to hba object. 9969 * @tlv: Pointer to the Delivery Notification Descriptor TLV 9970 * 9971 * This function processes a Delivery FPIN event by logging a message. 9972 **/ 9973 static void 9974 lpfc_els_rcv_fpin_del(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 9975 { 9976 struct fc_fn_deli_desc *del = (struct fc_fn_deli_desc *)tlv; 9977 const char *del_rsn_str; 9978 u32 del_rsn; 9979 __be32 *frame; 9980 9981 del_rsn = be16_to_cpu(del->deli_reason_code); 9982 del_rsn_str = lpfc_get_fpin_deli_event_nm(del_rsn); 9983 9984 /* Skip over desc_tag/desc_len header to payload */ 9985 frame = (__be32 *)(del + 1); 9986 9987 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 9988 "4681 FPIN Delivery %s (x%x) " 9989 "Detecting PN x%016llx Attached PN x%016llx " 9990 "DiscHdr0 x%08x " 9991 "DiscHdr1 x%08x DiscHdr2 x%08x DiscHdr3 x%08x " 9992 "DiscHdr4 x%08x DiscHdr5 x%08x\n", 9993 del_rsn_str, del_rsn, 9994 be64_to_cpu(del->detecting_wwpn), 9995 be64_to_cpu(del->attached_wwpn), 9996 be32_to_cpu(frame[0]), 9997 be32_to_cpu(frame[1]), 9998 be32_to_cpu(frame[2]), 9999 be32_to_cpu(frame[3]), 10000 be32_to_cpu(frame[4]), 10001 be32_to_cpu(frame[5])); 10002 } 10003 10004 /** 10005 * lpfc_els_rcv_fpin_peer_cgn - Process a FPIN Peer Congestion Event. 10006 * @phba: Pointer to hba object. 10007 * @tlv: Pointer to the Peer Congestion Notification Descriptor TLV 10008 * 10009 * This function processes a Peer Congestion FPIN event by logging a message. 10010 **/ 10011 static void 10012 lpfc_els_rcv_fpin_peer_cgn(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 10013 { 10014 struct fc_fn_peer_congn_desc *pc = (struct fc_fn_peer_congn_desc *)tlv; 10015 const char *pc_evt_str; 10016 u32 pc_evt, cnt; 10017 10018 pc_evt = be16_to_cpu(pc->event_type); 10019 pc_evt_str = lpfc_get_fpin_congn_event_nm(pc_evt); 10020 cnt = be32_to_cpu(pc->pname_count); 10021 10022 /* Capture FPIN frequency */ 10023 phba->cgn_fpin_frequency = be32_to_cpu(pc->event_period); 10024 10025 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_ELS, 10026 "4684 FPIN Peer Congestion %s (x%x) " 10027 "Duration %d mSecs " 10028 "Detecting PN x%016llx Attached PN x%016llx " 10029 "Impacted Port Cnt %d\n", 10030 pc_evt_str, pc_evt, 10031 be32_to_cpu(pc->event_period), 10032 be64_to_cpu(pc->detecting_wwpn), 10033 be64_to_cpu(pc->attached_wwpn), 10034 cnt); 10035 10036 lpfc_display_fpin_wwpn(phba, (__be64 *)&pc->pname_list, cnt); 10037 } 10038 10039 /** 10040 * lpfc_els_rcv_fpin_cgn - Process an FPIN Congestion notification 10041 * @phba: Pointer to hba object. 10042 * @tlv: Pointer to the Congestion Notification Descriptor TLV 10043 * 10044 * This function processes an FPIN Congestion Notifiction. The notification 10045 * could be an Alarm or Warning. This routine feeds that data into driver's 10046 * running congestion algorithm. It also processes the FPIN by 10047 * logging a message. It returns 1 to indicate deliver this message 10048 * to the upper layer or 0 to indicate don't deliver it. 10049 **/ 10050 static int 10051 lpfc_els_rcv_fpin_cgn(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) 10052 { 10053 struct lpfc_cgn_info *cp; 10054 struct fc_fn_congn_desc *cgn = (struct fc_fn_congn_desc *)tlv; 10055 const char *cgn_evt_str; 10056 u32 cgn_evt; 10057 const char *cgn_sev_str; 10058 u32 cgn_sev; 10059 uint16_t value; 10060 u32 crc; 10061 bool nm_log = false; 10062 int rc = 1; 10063 10064 cgn_evt = be16_to_cpu(cgn->event_type); 10065 cgn_evt_str = lpfc_get_fpin_congn_event_nm(cgn_evt); 10066 cgn_sev = cgn->severity; 10067 cgn_sev_str = lpfc_get_fpin_congn_severity_nm(cgn_sev); 10068 10069 /* The driver only takes action on a Credit Stall or Oversubscription 10070 * event type to engage the IO algorithm. The driver prints an 10071 * unmaskable message only for Lost Credit and Credit Stall. 10072 * TODO: Still need to have definition of host action on clear, 10073 * lost credit and device specific event types. 10074 */ 10075 switch (cgn_evt) { 10076 case FPIN_CONGN_LOST_CREDIT: 10077 nm_log = true; 10078 break; 10079 case FPIN_CONGN_CREDIT_STALL: 10080 nm_log = true; 10081 fallthrough; 10082 case FPIN_CONGN_OVERSUBSCRIPTION: 10083 if (cgn_evt == FPIN_CONGN_OVERSUBSCRIPTION) 10084 nm_log = false; 10085 switch (cgn_sev) { 10086 case FPIN_CONGN_SEVERITY_ERROR: 10087 /* Take action here for an Alarm event */ 10088 if (phba->cmf_active_mode != LPFC_CFG_OFF) { 10089 if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) { 10090 /* Track of alarm cnt for SYNC_WQE */ 10091 atomic_inc(&phba->cgn_sync_alarm_cnt); 10092 } 10093 /* Track alarm cnt for cgn_info regardless 10094 * of whether CMF is configured for Signals 10095 * or FPINs. 10096 */ 10097 atomic_inc(&phba->cgn_fabric_alarm_cnt); 10098 goto cleanup; 10099 } 10100 break; 10101 case FPIN_CONGN_SEVERITY_WARNING: 10102 /* Take action here for a Warning event */ 10103 if (phba->cmf_active_mode != LPFC_CFG_OFF) { 10104 if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) { 10105 /* Track of warning cnt for SYNC_WQE */ 10106 atomic_inc(&phba->cgn_sync_warn_cnt); 10107 } 10108 /* Track warning cnt and freq for cgn_info 10109 * regardless of whether CMF is configured for 10110 * Signals or FPINs. 10111 */ 10112 atomic_inc(&phba->cgn_fabric_warn_cnt); 10113 cleanup: 10114 /* Save frequency in ms */ 10115 phba->cgn_fpin_frequency = 10116 be32_to_cpu(cgn->event_period); 10117 value = phba->cgn_fpin_frequency; 10118 if (phba->cgn_i) { 10119 cp = (struct lpfc_cgn_info *) 10120 phba->cgn_i->virt; 10121 cp->cgn_alarm_freq = 10122 cpu_to_le16(value); 10123 cp->cgn_warn_freq = 10124 cpu_to_le16(value); 10125 crc = lpfc_cgn_calc_crc32 10126 (cp, 10127 LPFC_CGN_INFO_SZ, 10128 LPFC_CGN_CRC32_SEED); 10129 cp->cgn_info_crc = cpu_to_le32(crc); 10130 } 10131 10132 /* Don't deliver to upper layer since 10133 * driver took action on this tlv. 10134 */ 10135 rc = 0; 10136 } 10137 break; 10138 } 10139 break; 10140 } 10141 10142 /* Change the log level to unmaskable for the following event types. */ 10143 lpfc_printf_log(phba, (nm_log ? KERN_WARNING : KERN_INFO), 10144 LOG_CGN_MGMT | LOG_ELS, 10145 "4683 FPIN CONGESTION %s type %s (x%x) Event " 10146 "Duration %d mSecs\n", 10147 cgn_sev_str, cgn_evt_str, cgn_evt, 10148 be32_to_cpu(cgn->event_period)); 10149 return rc; 10150 } 10151 10152 void 10153 lpfc_els_rcv_fpin(struct lpfc_vport *vport, void *p, u32 fpin_length) 10154 { 10155 struct lpfc_hba *phba = vport->phba; 10156 struct fc_els_fpin *fpin = (struct fc_els_fpin *)p; 10157 struct fc_tlv_desc *tlv, *first_tlv, *current_tlv; 10158 const char *dtag_nm; 10159 int desc_cnt = 0, bytes_remain, cnt; 10160 u32 dtag, deliver = 0; 10161 int len; 10162 10163 /* FPINs handled only if we are in the right discovery state */ 10164 if (vport->port_state < LPFC_DISC_AUTH) 10165 return; 10166 10167 /* make sure there is the full fpin header */ 10168 if (fpin_length < sizeof(struct fc_els_fpin)) 10169 return; 10170 10171 /* Sanity check descriptor length. The desc_len value does not 10172 * include space for the ELS command and the desc_len fields. 10173 */ 10174 len = be32_to_cpu(fpin->desc_len); 10175 if (fpin_length < len + sizeof(struct fc_els_fpin)) { 10176 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 10177 "4671 Bad ELS FPIN length %d: %d\n", 10178 len, fpin_length); 10179 return; 10180 } 10181 10182 tlv = (struct fc_tlv_desc *)&fpin->fpin_desc[0]; 10183 first_tlv = tlv; 10184 bytes_remain = fpin_length - offsetof(struct fc_els_fpin, fpin_desc); 10185 bytes_remain = min_t(u32, bytes_remain, be32_to_cpu(fpin->desc_len)); 10186 10187 /* process each descriptor separately */ 10188 while (bytes_remain >= FC_TLV_DESC_HDR_SZ && 10189 bytes_remain >= FC_TLV_DESC_SZ_FROM_LENGTH(tlv)) { 10190 dtag = be32_to_cpu(tlv->desc_tag); 10191 switch (dtag) { 10192 case ELS_DTAG_LNK_INTEGRITY: 10193 lpfc_els_rcv_fpin_li(phba, tlv); 10194 deliver = 1; 10195 break; 10196 case ELS_DTAG_DELIVERY: 10197 lpfc_els_rcv_fpin_del(phba, tlv); 10198 deliver = 1; 10199 break; 10200 case ELS_DTAG_PEER_CONGEST: 10201 lpfc_els_rcv_fpin_peer_cgn(phba, tlv); 10202 deliver = 1; 10203 break; 10204 case ELS_DTAG_CONGESTION: 10205 deliver = lpfc_els_rcv_fpin_cgn(phba, tlv); 10206 break; 10207 default: 10208 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 10209 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 10210 "4678 unknown FPIN descriptor[%d]: " 10211 "tag x%x (%s)\n", 10212 desc_cnt, dtag, dtag_nm); 10213 10214 /* If descriptor is bad, drop the rest of the data */ 10215 return; 10216 } 10217 lpfc_cgn_update_stat(phba, dtag); 10218 cnt = be32_to_cpu(tlv->desc_len); 10219 10220 /* Sanity check descriptor length. The desc_len value does not 10221 * include space for the desc_tag and the desc_len fields. 10222 */ 10223 len -= (cnt + sizeof(struct fc_tlv_desc)); 10224 if (len < 0) { 10225 dtag_nm = lpfc_get_tlv_dtag_nm(dtag); 10226 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, 10227 "4672 Bad FPIN descriptor TLV length " 10228 "%d: %d %d %s\n", 10229 cnt, len, fpin_length, dtag_nm); 10230 return; 10231 } 10232 10233 current_tlv = tlv; 10234 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv); 10235 tlv = fc_tlv_next_desc(tlv); 10236 10237 /* Format payload such that the FPIN delivered to the 10238 * upper layer is a single descriptor FPIN. 10239 */ 10240 if (desc_cnt) 10241 memcpy(first_tlv, current_tlv, 10242 (cnt + sizeof(struct fc_els_fpin))); 10243 10244 /* Adjust the length so that it only reflects a 10245 * single descriptor FPIN. 10246 */ 10247 fpin_length = cnt + sizeof(struct fc_els_fpin); 10248 fpin->desc_len = cpu_to_be32(fpin_length); 10249 fpin_length += sizeof(struct fc_els_fpin); /* the entire FPIN */ 10250 10251 /* Send every descriptor individually to the upper layer */ 10252 if (deliver) 10253 fc_host_fpin_rcv(lpfc_shost_from_vport(vport), 10254 fpin_length, (char *)fpin, 0); 10255 desc_cnt++; 10256 } 10257 } 10258 10259 /** 10260 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer 10261 * @phba: pointer to lpfc hba data structure. 10262 * @pring: pointer to a SLI ring. 10263 * @vport: pointer to a host virtual N_Port data structure. 10264 * @elsiocb: pointer to lpfc els command iocb data structure. 10265 * 10266 * This routine is used for processing the IOCB associated with a unsolicited 10267 * event. It first determines whether there is an existing ndlp that matches 10268 * the DID from the unsolicited IOCB. If not, it will create a new one with 10269 * the DID from the unsolicited IOCB. The ELS command from the unsolicited 10270 * IOCB is then used to invoke the proper routine and to set up proper state 10271 * of the discovery state machine. 10272 **/ 10273 static void 10274 lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 10275 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) 10276 { 10277 struct lpfc_nodelist *ndlp; 10278 struct ls_rjt stat; 10279 u32 *payload, payload_len; 10280 u32 cmd = 0, did = 0, newnode, status = 0; 10281 uint8_t rjt_exp, rjt_err = 0, init_link = 0; 10282 struct lpfc_wcqe_complete *wcqe_cmpl = NULL; 10283 LPFC_MBOXQ_t *mbox; 10284 10285 if (!vport || !elsiocb->cmd_dmabuf) 10286 goto dropit; 10287 10288 newnode = 0; 10289 wcqe_cmpl = &elsiocb->wcqe_cmpl; 10290 payload = elsiocb->cmd_dmabuf->virt; 10291 if (phba->sli_rev == LPFC_SLI_REV4) 10292 payload_len = wcqe_cmpl->total_data_placed; 10293 else 10294 payload_len = elsiocb->iocb.unsli3.rcvsli3.acc_len; 10295 status = get_job_ulpstatus(phba, elsiocb); 10296 cmd = *payload; 10297 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) 10298 lpfc_sli3_post_buffer(phba, pring, 1); 10299 10300 did = get_job_els_rsp64_did(phba, elsiocb); 10301 if (status) { 10302 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10303 "RCV Unsol ELS: status:x%x/x%x did:x%x", 10304 status, get_job_word4(phba, elsiocb), did); 10305 goto dropit; 10306 } 10307 10308 /* Check to see if link went down during discovery */ 10309 if (lpfc_els_chk_latt(vport)) 10310 goto dropit; 10311 10312 /* Ignore traffic received during vport shutdown. */ 10313 if (test_bit(FC_UNLOADING, &vport->load_flag)) 10314 goto dropit; 10315 10316 /* If NPort discovery is delayed drop incoming ELS */ 10317 if (test_bit(FC_DISC_DELAYED, &vport->fc_flag) && 10318 cmd != ELS_CMD_PLOGI) 10319 goto dropit; 10320 10321 ndlp = lpfc_findnode_did(vport, did); 10322 if (!ndlp) { 10323 /* Cannot find existing Fabric ndlp, so allocate a new one */ 10324 ndlp = lpfc_nlp_init(vport, did); 10325 if (!ndlp) 10326 goto dropit; 10327 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 10328 newnode = 1; 10329 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) 10330 ndlp->nlp_type |= NLP_FABRIC; 10331 } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 10332 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 10333 newnode = 1; 10334 } 10335 10336 phba->fc_stat.elsRcvFrame++; 10337 10338 /* 10339 * Do not process any unsolicited ELS commands 10340 * if the ndlp is in DEV_LOSS 10341 */ 10342 if (test_bit(NLP_IN_DEV_LOSS, &ndlp->nlp_flag)) { 10343 if (newnode) 10344 lpfc_nlp_put(ndlp); 10345 goto dropit; 10346 } 10347 10348 elsiocb->ndlp = lpfc_nlp_get(ndlp); 10349 if (!elsiocb->ndlp) 10350 goto dropit; 10351 elsiocb->vport = vport; 10352 10353 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { 10354 cmd &= ELS_CMD_MASK; 10355 } 10356 /* ELS command <elsCmd> received from NPORT <did> */ 10357 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 10358 "0112 ELS command x%x received from NPORT x%x " 10359 "refcnt %d Data: x%x x%lx x%x x%x\n", 10360 cmd, did, kref_read(&ndlp->kref), vport->port_state, 10361 vport->fc_flag, vport->fc_myDID, vport->fc_prevDID); 10362 10363 /* reject till our FLOGI completes or PLOGI assigned DID via PT2PT */ 10364 if ((vport->port_state < LPFC_FABRIC_CFG_LINK) && 10365 (cmd != ELS_CMD_FLOGI) && 10366 !((cmd == ELS_CMD_PLOGI) && test_bit(FC_PT2PT, &vport->fc_flag))) { 10367 rjt_err = LSRJT_LOGICAL_BSY; 10368 rjt_exp = LSEXP_NOTHING_MORE; 10369 goto lsrjt; 10370 } 10371 10372 switch (cmd) { 10373 case ELS_CMD_PLOGI: 10374 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10375 "RCV PLOGI: did:x%x/ste:x%x flg:x%lx", 10376 did, vport->port_state, ndlp->nlp_flag); 10377 10378 phba->fc_stat.elsRcvPLOGI++; 10379 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); 10380 if (phba->sli_rev == LPFC_SLI_REV4 && 10381 test_bit(FC_PT2PT, &phba->pport->fc_flag)) { 10382 vport->fc_prevDID = vport->fc_myDID; 10383 /* Our DID needs to be updated before registering 10384 * the vfi. This is done in lpfc_rcv_plogi but 10385 * that is called after the reg_vfi. 10386 */ 10387 vport->fc_myDID = 10388 bf_get(els_rsp64_sid, 10389 &elsiocb->wqe.xmit_els_rsp); 10390 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 10391 "3312 Remote port assigned DID x%x " 10392 "%x\n", vport->fc_myDID, 10393 vport->fc_prevDID); 10394 } 10395 10396 lpfc_send_els_event(vport, ndlp, payload); 10397 10398 /* If Nport discovery is delayed, reject PLOGIs */ 10399 if (test_bit(FC_DISC_DELAYED, &vport->fc_flag)) { 10400 rjt_err = LSRJT_UNABLE_TPC; 10401 rjt_exp = LSEXP_NOTHING_MORE; 10402 break; 10403 } 10404 10405 if (vport->port_state < LPFC_DISC_AUTH) { 10406 if (!test_bit(FC_PT2PT, &phba->pport->fc_flag) || 10407 test_bit(FC_PT2PT_PLOGI, &phba->pport->fc_flag)) { 10408 rjt_err = LSRJT_UNABLE_TPC; 10409 rjt_exp = LSEXP_NOTHING_MORE; 10410 break; 10411 } 10412 } 10413 10414 clear_bit(NLP_TARGET_REMOVE, &ndlp->nlp_flag); 10415 10416 lpfc_disc_state_machine(vport, ndlp, elsiocb, 10417 NLP_EVT_RCV_PLOGI); 10418 10419 break; 10420 case ELS_CMD_FLOGI: 10421 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10422 "RCV FLOGI: did:x%x/ste:x%x flg:x%lx", 10423 did, vport->port_state, ndlp->nlp_flag); 10424 10425 phba->fc_stat.elsRcvFLOGI++; 10426 10427 /* If the driver believes fabric discovery is done and is ready, 10428 * bounce the link. There is some descrepancy. 10429 */ 10430 if (vport->port_state >= LPFC_LOCAL_CFG_LINK && 10431 test_bit(FC_PT2PT, &vport->fc_flag) && 10432 vport->rcv_flogi_cnt >= 1) { 10433 rjt_err = LSRJT_LOGICAL_BSY; 10434 rjt_exp = LSEXP_NOTHING_MORE; 10435 init_link++; 10436 goto lsrjt; 10437 } 10438 10439 lpfc_els_rcv_flogi(vport, elsiocb, ndlp); 10440 /* retain node if our response is deferred */ 10441 if (phba->defer_flogi_acc.flag) 10442 break; 10443 if (newnode) 10444 lpfc_disc_state_machine(vport, ndlp, NULL, 10445 NLP_EVT_DEVICE_RM); 10446 break; 10447 case ELS_CMD_LOGO: 10448 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10449 "RCV LOGO: did:x%x/ste:x%x flg:x%lx", 10450 did, vport->port_state, ndlp->nlp_flag); 10451 10452 phba->fc_stat.elsRcvLOGO++; 10453 lpfc_send_els_event(vport, ndlp, payload); 10454 if (vport->port_state < LPFC_DISC_AUTH) { 10455 rjt_err = LSRJT_UNABLE_TPC; 10456 rjt_exp = LSEXP_NOTHING_MORE; 10457 break; 10458 } 10459 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); 10460 if (newnode) 10461 lpfc_disc_state_machine(vport, ndlp, NULL, 10462 NLP_EVT_DEVICE_RM); 10463 break; 10464 case ELS_CMD_PRLO: 10465 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10466 "RCV PRLO: did:x%x/ste:x%x flg:x%lx", 10467 did, vport->port_state, ndlp->nlp_flag); 10468 10469 phba->fc_stat.elsRcvPRLO++; 10470 lpfc_send_els_event(vport, ndlp, payload); 10471 if (vport->port_state < LPFC_DISC_AUTH) { 10472 rjt_err = LSRJT_UNABLE_TPC; 10473 rjt_exp = LSEXP_NOTHING_MORE; 10474 break; 10475 } 10476 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); 10477 break; 10478 case ELS_CMD_LCB: 10479 phba->fc_stat.elsRcvLCB++; 10480 lpfc_els_rcv_lcb(vport, elsiocb, ndlp); 10481 break; 10482 case ELS_CMD_RDP: 10483 phba->fc_stat.elsRcvRDP++; 10484 lpfc_els_rcv_rdp(vport, elsiocb, ndlp); 10485 break; 10486 case ELS_CMD_RSCN: 10487 phba->fc_stat.elsRcvRSCN++; 10488 lpfc_els_rcv_rscn(vport, elsiocb, ndlp); 10489 if (newnode) 10490 lpfc_disc_state_machine(vport, ndlp, NULL, 10491 NLP_EVT_DEVICE_RM); 10492 break; 10493 case ELS_CMD_ADISC: 10494 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10495 "RCV ADISC: did:x%x/ste:x%x flg:x%lx", 10496 did, vport->port_state, ndlp->nlp_flag); 10497 10498 lpfc_send_els_event(vport, ndlp, payload); 10499 phba->fc_stat.elsRcvADISC++; 10500 if (vport->port_state < LPFC_DISC_AUTH) { 10501 rjt_err = LSRJT_UNABLE_TPC; 10502 rjt_exp = LSEXP_NOTHING_MORE; 10503 break; 10504 } 10505 lpfc_disc_state_machine(vport, ndlp, elsiocb, 10506 NLP_EVT_RCV_ADISC); 10507 break; 10508 case ELS_CMD_PDISC: 10509 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10510 "RCV PDISC: did:x%x/ste:x%x flg:x%lx", 10511 did, vport->port_state, ndlp->nlp_flag); 10512 10513 phba->fc_stat.elsRcvPDISC++; 10514 if (vport->port_state < LPFC_DISC_AUTH) { 10515 rjt_err = LSRJT_UNABLE_TPC; 10516 rjt_exp = LSEXP_NOTHING_MORE; 10517 break; 10518 } 10519 lpfc_disc_state_machine(vport, ndlp, elsiocb, 10520 NLP_EVT_RCV_PDISC); 10521 break; 10522 case ELS_CMD_FARPR: 10523 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10524 "RCV FARPR: did:x%x/ste:x%x flg:x%lx", 10525 did, vport->port_state, ndlp->nlp_flag); 10526 10527 phba->fc_stat.elsRcvFARPR++; 10528 lpfc_els_rcv_farpr(vport, elsiocb, ndlp); 10529 break; 10530 case ELS_CMD_FARP: 10531 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10532 "RCV FARP: did:x%x/ste:x%x flg:x%lx", 10533 did, vport->port_state, ndlp->nlp_flag); 10534 10535 phba->fc_stat.elsRcvFARP++; 10536 lpfc_els_rcv_farp(vport, elsiocb, ndlp); 10537 break; 10538 case ELS_CMD_FAN: 10539 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10540 "RCV FAN: did:x%x/ste:x%x flg:x%lx", 10541 did, vport->port_state, ndlp->nlp_flag); 10542 10543 phba->fc_stat.elsRcvFAN++; 10544 lpfc_els_rcv_fan(vport, elsiocb, ndlp); 10545 break; 10546 case ELS_CMD_PRLI: 10547 case ELS_CMD_NVMEPRLI: 10548 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10549 "RCV PRLI: did:x%x/ste:x%x flg:x%lx", 10550 did, vport->port_state, ndlp->nlp_flag); 10551 10552 phba->fc_stat.elsRcvPRLI++; 10553 if ((vport->port_state < LPFC_DISC_AUTH) && 10554 test_bit(FC_FABRIC, &vport->fc_flag)) { 10555 rjt_err = LSRJT_UNABLE_TPC; 10556 rjt_exp = LSEXP_NOTHING_MORE; 10557 break; 10558 } 10559 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); 10560 break; 10561 case ELS_CMD_LIRR: 10562 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10563 "RCV LIRR: did:x%x/ste:x%x flg:x%lx", 10564 did, vport->port_state, ndlp->nlp_flag); 10565 10566 phba->fc_stat.elsRcvLIRR++; 10567 lpfc_els_rcv_lirr(vport, elsiocb, ndlp); 10568 if (newnode) 10569 lpfc_disc_state_machine(vport, ndlp, NULL, 10570 NLP_EVT_DEVICE_RM); 10571 break; 10572 case ELS_CMD_RLS: 10573 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10574 "RCV RLS: did:x%x/ste:x%x flg:x%lx", 10575 did, vport->port_state, ndlp->nlp_flag); 10576 10577 phba->fc_stat.elsRcvRLS++; 10578 lpfc_els_rcv_rls(vport, elsiocb, ndlp); 10579 if (newnode) 10580 lpfc_disc_state_machine(vport, ndlp, NULL, 10581 NLP_EVT_DEVICE_RM); 10582 break; 10583 case ELS_CMD_RPL: 10584 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10585 "RCV RPL: did:x%x/ste:x%x flg:x%lx", 10586 did, vport->port_state, ndlp->nlp_flag); 10587 10588 phba->fc_stat.elsRcvRPL++; 10589 lpfc_els_rcv_rpl(vport, elsiocb, ndlp); 10590 if (newnode) 10591 lpfc_disc_state_machine(vport, ndlp, NULL, 10592 NLP_EVT_DEVICE_RM); 10593 break; 10594 case ELS_CMD_RNID: 10595 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10596 "RCV RNID: did:x%x/ste:x%x flg:x%lx", 10597 did, vport->port_state, ndlp->nlp_flag); 10598 10599 phba->fc_stat.elsRcvRNID++; 10600 lpfc_els_rcv_rnid(vport, elsiocb, ndlp); 10601 if (newnode) 10602 lpfc_disc_state_machine(vport, ndlp, NULL, 10603 NLP_EVT_DEVICE_RM); 10604 break; 10605 case ELS_CMD_RTV: 10606 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10607 "RCV RTV: did:x%x/ste:x%x flg:x%lx", 10608 did, vport->port_state, ndlp->nlp_flag); 10609 phba->fc_stat.elsRcvRTV++; 10610 lpfc_els_rcv_rtv(vport, elsiocb, ndlp); 10611 if (newnode) 10612 lpfc_disc_state_machine(vport, ndlp, NULL, 10613 NLP_EVT_DEVICE_RM); 10614 break; 10615 case ELS_CMD_RRQ: 10616 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10617 "RCV RRQ: did:x%x/ste:x%x flg:x%lx", 10618 did, vport->port_state, ndlp->nlp_flag); 10619 10620 phba->fc_stat.elsRcvRRQ++; 10621 lpfc_els_rcv_rrq(vport, elsiocb, ndlp); 10622 if (newnode) 10623 lpfc_disc_state_machine(vport, ndlp, NULL, 10624 NLP_EVT_DEVICE_RM); 10625 break; 10626 case ELS_CMD_ECHO: 10627 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10628 "RCV ECHO: did:x%x/ste:x%x flg:x%lx", 10629 did, vport->port_state, ndlp->nlp_flag); 10630 10631 phba->fc_stat.elsRcvECHO++; 10632 lpfc_els_rcv_echo(vport, elsiocb, ndlp); 10633 if (newnode) 10634 lpfc_disc_state_machine(vport, ndlp, NULL, 10635 NLP_EVT_DEVICE_RM); 10636 break; 10637 case ELS_CMD_REC: 10638 /* receive this due to exchange closed */ 10639 rjt_err = LSRJT_UNABLE_TPC; 10640 rjt_exp = LSEXP_INVALID_OX_RX; 10641 break; 10642 case ELS_CMD_FPIN: 10643 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10644 "RCV FPIN: did:x%x/ste:x%x " 10645 "flg:x%lx", 10646 did, vport->port_state, ndlp->nlp_flag); 10647 10648 lpfc_els_rcv_fpin(vport, (struct fc_els_fpin *)payload, 10649 payload_len); 10650 10651 /* There are no replies, so no rjt codes */ 10652 break; 10653 case ELS_CMD_EDC: 10654 lpfc_els_rcv_edc(vport, elsiocb, ndlp); 10655 break; 10656 case ELS_CMD_RDF: 10657 phba->fc_stat.elsRcvRDF++; 10658 /* Accept RDF only from fabric controller */ 10659 if (did != Fabric_Cntl_DID) { 10660 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS, 10661 "1115 Received RDF from invalid DID " 10662 "x%x\n", did); 10663 rjt_err = LSRJT_PROTOCOL_ERR; 10664 rjt_exp = LSEXP_NOTHING_MORE; 10665 goto lsrjt; 10666 } 10667 10668 lpfc_els_rcv_rdf(vport, elsiocb, ndlp); 10669 break; 10670 default: 10671 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, 10672 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", 10673 cmd, did, vport->port_state); 10674 10675 /* Unsupported ELS command, reject */ 10676 rjt_err = LSRJT_CMD_UNSUPPORTED; 10677 rjt_exp = LSEXP_NOTHING_MORE; 10678 10679 /* Unknown ELS command <elsCmd> received from NPORT <did> */ 10680 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 10681 "0115 Unknown ELS command x%x " 10682 "received from NPORT x%x\n", cmd, did); 10683 if (newnode) 10684 lpfc_disc_state_machine(vport, ndlp, NULL, 10685 NLP_EVT_DEVICE_RM); 10686 break; 10687 } 10688 10689 lsrjt: 10690 /* check if need to LS_RJT received ELS cmd */ 10691 if (rjt_err) { 10692 memset(&stat, 0, sizeof(stat)); 10693 stat.un.b.lsRjtRsnCode = rjt_err; 10694 stat.un.b.lsRjtRsnCodeExp = rjt_exp; 10695 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, 10696 NULL); 10697 /* Remove the reference from above for new nodes. */ 10698 if (newnode) 10699 lpfc_disc_state_machine(vport, ndlp, NULL, 10700 NLP_EVT_DEVICE_RM); 10701 } 10702 10703 /* Release the reference on this elsiocb, not the ndlp. */ 10704 lpfc_nlp_put(elsiocb->ndlp); 10705 elsiocb->ndlp = NULL; 10706 10707 /* Special case. Driver received an unsolicited command that 10708 * unsupportable given the driver's current state. Reset the 10709 * link and start over. 10710 */ 10711 if (init_link) { 10712 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 10713 if (!mbox) 10714 return; 10715 lpfc_linkdown(phba); 10716 lpfc_init_link(phba, mbox, 10717 phba->cfg_topology, 10718 phba->cfg_link_speed); 10719 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 10720 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 10721 mbox->vport = vport; 10722 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == 10723 MBX_NOT_FINISHED) 10724 mempool_free(mbox, phba->mbox_mem_pool); 10725 } 10726 10727 return; 10728 10729 dropit: 10730 if (vport && !test_bit(FC_UNLOADING, &vport->load_flag)) 10731 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10732 "0111 Dropping received ELS cmd " 10733 "Data: x%x x%x x%x x%x\n", 10734 cmd, status, get_job_word4(phba, elsiocb), did); 10735 10736 phba->fc_stat.elsRcvDrop++; 10737 } 10738 10739 /** 10740 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring 10741 * @phba: pointer to lpfc hba data structure. 10742 * @pring: pointer to a SLI ring. 10743 * @elsiocb: pointer to lpfc els iocb data structure. 10744 * 10745 * This routine is used to process an unsolicited event received from a SLI 10746 * (Service Level Interface) ring. The actual processing of the data buffer 10747 * associated with the unsolicited event is done by invoking the routine 10748 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the 10749 * SLI ring on which the unsolicited event was received. 10750 **/ 10751 void 10752 lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 10753 struct lpfc_iocbq *elsiocb) 10754 { 10755 struct lpfc_vport *vport = elsiocb->vport; 10756 u32 ulp_command, status, parameter, bde_count = 0; 10757 IOCB_t *icmd; 10758 struct lpfc_wcqe_complete *wcqe_cmpl = NULL; 10759 struct lpfc_dmabuf *bdeBuf1 = elsiocb->cmd_dmabuf; 10760 struct lpfc_dmabuf *bdeBuf2 = elsiocb->bpl_dmabuf; 10761 dma_addr_t paddr; 10762 10763 elsiocb->cmd_dmabuf = NULL; 10764 elsiocb->rsp_dmabuf = NULL; 10765 elsiocb->bpl_dmabuf = NULL; 10766 10767 wcqe_cmpl = &elsiocb->wcqe_cmpl; 10768 ulp_command = get_job_cmnd(phba, elsiocb); 10769 status = get_job_ulpstatus(phba, elsiocb); 10770 parameter = get_job_word4(phba, elsiocb); 10771 if (phba->sli_rev == LPFC_SLI_REV4) 10772 bde_count = wcqe_cmpl->word3; 10773 else 10774 bde_count = elsiocb->iocb.ulpBdeCount; 10775 10776 if (status == IOSTAT_NEED_BUFFER) { 10777 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 10778 } else if (status == IOSTAT_LOCAL_REJECT && 10779 (parameter & IOERR_PARAM_MASK) == 10780 IOERR_RCV_BUFFER_WAITING) { 10781 phba->fc_stat.NoRcvBuf++; 10782 /* Not enough posted buffers; Try posting more buffers */ 10783 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) 10784 lpfc_sli3_post_buffer(phba, pring, 0); 10785 return; 10786 } 10787 10788 if (phba->sli_rev == LPFC_SLI_REV3) { 10789 icmd = &elsiocb->iocb; 10790 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 10791 (ulp_command == CMD_IOCB_RCV_ELS64_CX || 10792 ulp_command == CMD_IOCB_RCV_SEQ64_CX)) { 10793 if (icmd->unsli3.rcvsli3.vpi == 0xffff) 10794 vport = phba->pport; 10795 else 10796 vport = lpfc_find_vport_by_vpid(phba, 10797 icmd->unsli3.rcvsli3.vpi); 10798 } 10799 } 10800 10801 /* If there are no BDEs associated 10802 * with this IOCB, there is nothing to do. 10803 */ 10804 if (bde_count == 0) 10805 return; 10806 10807 /* Account for SLI2 or SLI3 and later unsolicited buffering */ 10808 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { 10809 elsiocb->cmd_dmabuf = bdeBuf1; 10810 if (bde_count == 2) 10811 elsiocb->bpl_dmabuf = bdeBuf2; 10812 } else { 10813 icmd = &elsiocb->iocb; 10814 paddr = getPaddr(icmd->un.cont64[0].addrHigh, 10815 icmd->un.cont64[0].addrLow); 10816 elsiocb->cmd_dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, 10817 paddr); 10818 if (bde_count == 2) { 10819 paddr = getPaddr(icmd->un.cont64[1].addrHigh, 10820 icmd->un.cont64[1].addrLow); 10821 elsiocb->bpl_dmabuf = lpfc_sli_ringpostbuf_get(phba, 10822 pring, 10823 paddr); 10824 } 10825 } 10826 10827 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); 10828 /* 10829 * The different unsolicited event handlers would tell us 10830 * if they are done with "mp" by setting cmd_dmabuf to NULL. 10831 */ 10832 if (elsiocb->cmd_dmabuf) { 10833 lpfc_in_buf_free(phba, elsiocb->cmd_dmabuf); 10834 elsiocb->cmd_dmabuf = NULL; 10835 } 10836 10837 if (elsiocb->bpl_dmabuf) { 10838 lpfc_in_buf_free(phba, elsiocb->bpl_dmabuf); 10839 elsiocb->bpl_dmabuf = NULL; 10840 } 10841 10842 } 10843 10844 static void 10845 lpfc_start_fdmi(struct lpfc_vport *vport) 10846 { 10847 struct lpfc_nodelist *ndlp; 10848 10849 /* If this is the first time, allocate an ndlp and initialize 10850 * it. Otherwise, make sure the node is enabled and then do the 10851 * login. 10852 */ 10853 ndlp = lpfc_findnode_did(vport, FDMI_DID); 10854 if (!ndlp) { 10855 ndlp = lpfc_nlp_init(vport, FDMI_DID); 10856 if (ndlp) { 10857 ndlp->nlp_type |= NLP_FABRIC; 10858 } else { 10859 return; 10860 } 10861 } 10862 10863 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 10864 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 10865 } 10866 10867 /** 10868 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr 10869 * @phba: pointer to lpfc hba data structure. 10870 * @vport: pointer to a virtual N_Port data structure. 10871 * 10872 * This routine issues a Port Login (PLOGI) to the Name Server with 10873 * State Change Request (SCR) for a @vport. This routine will create an 10874 * ndlp for the Name Server associated to the @vport if such node does 10875 * not already exist. The PLOGI to Name Server is issued by invoking the 10876 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface 10877 * (FDMI) is configured to the @vport, a FDMI node will be created and 10878 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine. 10879 **/ 10880 void 10881 lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) 10882 { 10883 struct lpfc_nodelist *ndlp; 10884 10885 /* 10886 * If lpfc_delay_discovery parameter is set and the clean address 10887 * bit is cleared and fc fabric parameters chenged, delay FC NPort 10888 * discovery. 10889 */ 10890 if (test_bit(FC_DISC_DELAYED, &vport->fc_flag)) { 10891 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10892 "3334 Delay fc port discovery for %d secs\n", 10893 phba->fc_ratov); 10894 mod_timer(&vport->delayed_disc_tmo, 10895 jiffies + msecs_to_jiffies(1000 * phba->fc_ratov)); 10896 return; 10897 } 10898 10899 ndlp = lpfc_findnode_did(vport, NameServer_DID); 10900 if (!ndlp) { 10901 ndlp = lpfc_nlp_init(vport, NameServer_DID); 10902 if (!ndlp) { 10903 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 10904 lpfc_disc_start(vport); 10905 return; 10906 } 10907 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 10908 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10909 "0251 NameServer login: no memory\n"); 10910 return; 10911 } 10912 } 10913 10914 ndlp->nlp_type |= NLP_FABRIC; 10915 10916 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 10917 10918 if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { 10919 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 10920 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10921 "0252 Cannot issue NameServer login\n"); 10922 return; 10923 } 10924 10925 if ((phba->cfg_enable_SmartSAN || 10926 phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT) && 10927 test_bit(FC_ALLOW_FDMI, &vport->load_flag)) 10928 lpfc_start_fdmi(vport); 10929 } 10930 10931 /** 10932 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport 10933 * @phba: pointer to lpfc hba data structure. 10934 * @pmb: pointer to the driver internal queue element for mailbox command. 10935 * 10936 * This routine is the completion callback function to register new vport 10937 * mailbox command. If the new vport mailbox command completes successfully, 10938 * the fabric registration login shall be performed on physical port (the 10939 * new vport created is actually a physical port, with VPI 0) or the port 10940 * login to Name Server for State Change Request (SCR) will be performed 10941 * on virtual port (real virtual port, with VPI greater than 0). 10942 **/ 10943 static void 10944 lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 10945 { 10946 struct lpfc_vport *vport = pmb->vport; 10947 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 10948 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; 10949 MAILBOX_t *mb = &pmb->u.mb; 10950 int rc; 10951 10952 clear_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); 10953 10954 if (mb->mbxStatus) { 10955 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 10956 "0915 Register VPI failed : Status: x%x" 10957 " upd bit: x%x \n", mb->mbxStatus, 10958 mb->un.varRegVpi.upd); 10959 if (phba->sli_rev == LPFC_SLI_REV4 && 10960 mb->un.varRegVpi.upd) 10961 goto mbox_err_exit ; 10962 10963 switch (mb->mbxStatus) { 10964 case 0x11: /* unsupported feature */ 10965 case 0x9603: /* max_vpi exceeded */ 10966 case 0x9602: /* Link event since CLEAR_LA */ 10967 /* giving up on vport registration */ 10968 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 10969 clear_bit(FC_FABRIC, &vport->fc_flag); 10970 clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag); 10971 lpfc_can_disctmo(vport); 10972 break; 10973 /* If reg_vpi fail with invalid VPI status, re-init VPI */ 10974 case 0x20: 10975 set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); 10976 lpfc_init_vpi(phba, pmb, vport->vpi); 10977 pmb->vport = vport; 10978 pmb->mbox_cmpl = lpfc_init_vpi_cmpl; 10979 rc = lpfc_sli_issue_mbox(phba, pmb, 10980 MBX_NOWAIT); 10981 if (rc == MBX_NOT_FINISHED) { 10982 lpfc_printf_vlog(vport, KERN_ERR, 10983 LOG_TRACE_EVENT, 10984 "2732 Failed to issue INIT_VPI" 10985 " mailbox command\n"); 10986 } else { 10987 lpfc_nlp_put(ndlp); 10988 return; 10989 } 10990 fallthrough; 10991 default: 10992 /* Try to recover from this error */ 10993 if (phba->sli_rev == LPFC_SLI_REV4) 10994 lpfc_sli4_unreg_all_rpis(vport); 10995 lpfc_mbx_unreg_vpi(vport); 10996 set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); 10997 if (mb->mbxStatus == MBX_NOT_FINISHED) 10998 break; 10999 if ((vport->port_type == LPFC_PHYSICAL_PORT) && 11000 !test_bit(FC_LOGO_RCVD_DID_CHNG, &vport->fc_flag)) { 11001 if (phba->sli_rev == LPFC_SLI_REV4) 11002 lpfc_issue_init_vfi(vport); 11003 else 11004 lpfc_initial_flogi(vport); 11005 } else { 11006 lpfc_initial_fdisc(vport); 11007 } 11008 break; 11009 } 11010 } else { 11011 spin_lock_irq(shost->host_lock); 11012 vport->vpi_state |= LPFC_VPI_REGISTERED; 11013 spin_unlock_irq(shost->host_lock); 11014 if (vport == phba->pport) { 11015 if (phba->sli_rev < LPFC_SLI_REV4) 11016 lpfc_issue_fabric_reglogin(vport); 11017 else { 11018 /* 11019 * If the physical port is instantiated using 11020 * FDISC, do not start vport discovery. 11021 */ 11022 if (vport->port_state != LPFC_FDISC) 11023 lpfc_start_fdiscs(phba); 11024 lpfc_do_scr_ns_plogi(phba, vport); 11025 } 11026 } else { 11027 lpfc_do_scr_ns_plogi(phba, vport); 11028 } 11029 } 11030 mbox_err_exit: 11031 /* Now, we decrement the ndlp reference count held for this 11032 * callback function 11033 */ 11034 lpfc_nlp_put(ndlp); 11035 11036 mempool_free(pmb, phba->mbox_mem_pool); 11037 11038 /* reinitialize the VMID datastructure before returning. 11039 * this is specifically for vport 11040 */ 11041 if (lpfc_is_vmid_enabled(phba)) 11042 lpfc_reinit_vmid(vport); 11043 vport->vmid_flag = vport->phba->pport->vmid_flag; 11044 11045 return; 11046 } 11047 11048 /** 11049 * lpfc_register_new_vport - Register a new vport with a HBA 11050 * @phba: pointer to lpfc hba data structure. 11051 * @vport: pointer to a host virtual N_Port data structure. 11052 * @ndlp: pointer to a node-list data structure. 11053 * 11054 * This routine registers the @vport as a new virtual port with a HBA. 11055 * It is done through a registering vpi mailbox command. 11056 **/ 11057 void 11058 lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, 11059 struct lpfc_nodelist *ndlp) 11060 { 11061 LPFC_MBOXQ_t *mbox; 11062 11063 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 11064 if (mbox) { 11065 lpfc_reg_vpi(vport, mbox); 11066 mbox->vport = vport; 11067 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 11068 if (!mbox->ctx_ndlp) { 11069 mempool_free(mbox, phba->mbox_mem_pool); 11070 goto mbox_err_exit; 11071 } 11072 11073 mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; 11074 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 11075 == MBX_NOT_FINISHED) { 11076 /* mailbox command not success, decrement ndlp 11077 * reference count for this command 11078 */ 11079 lpfc_nlp_put(ndlp); 11080 mempool_free(mbox, phba->mbox_mem_pool); 11081 11082 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11083 "0253 Register VPI: Can't send mbox\n"); 11084 goto mbox_err_exit; 11085 } 11086 } else { 11087 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11088 "0254 Register VPI: no memory\n"); 11089 goto mbox_err_exit; 11090 } 11091 return; 11092 11093 mbox_err_exit: 11094 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11095 clear_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); 11096 return; 11097 } 11098 11099 /** 11100 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer 11101 * @phba: pointer to lpfc hba data structure. 11102 * 11103 * This routine cancels the retry delay timers to all the vports. 11104 **/ 11105 void 11106 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba) 11107 { 11108 struct lpfc_vport **vports; 11109 struct lpfc_nodelist *ndlp; 11110 uint32_t link_state; 11111 int i; 11112 11113 /* Treat this failure as linkdown for all vports */ 11114 link_state = phba->link_state; 11115 lpfc_linkdown(phba); 11116 phba->link_state = link_state; 11117 11118 vports = lpfc_create_vport_work_array(phba); 11119 11120 if (vports) { 11121 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 11122 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 11123 if (ndlp) 11124 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 11125 lpfc_els_flush_cmd(vports[i]); 11126 } 11127 lpfc_destroy_vport_work_array(phba, vports); 11128 } 11129 } 11130 11131 /** 11132 * lpfc_retry_pport_discovery - Start timer to retry FLOGI. 11133 * @phba: pointer to lpfc hba data structure. 11134 * 11135 * This routine abort all pending discovery commands and 11136 * start a timer to retry FLOGI for the physical port 11137 * discovery. 11138 **/ 11139 void 11140 lpfc_retry_pport_discovery(struct lpfc_hba *phba) 11141 { 11142 struct lpfc_nodelist *ndlp; 11143 11144 /* Cancel the all vports retry delay retry timers */ 11145 lpfc_cancel_all_vport_retry_delay_timer(phba); 11146 11147 /* If fabric require FLOGI, then re-instantiate physical login */ 11148 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 11149 if (!ndlp) 11150 return; 11151 11152 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 11153 set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag); 11154 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI; 11155 phba->pport->port_state = LPFC_FLOGI; 11156 return; 11157 } 11158 11159 /** 11160 * lpfc_fabric_login_reqd - Check if FLOGI required. 11161 * @phba: pointer to lpfc hba data structure. 11162 * @cmdiocb: pointer to FDISC command iocb. 11163 * @rspiocb: pointer to FDISC response iocb. 11164 * 11165 * This routine checks if a FLOGI is reguired for FDISC 11166 * to succeed. 11167 **/ 11168 static int 11169 lpfc_fabric_login_reqd(struct lpfc_hba *phba, 11170 struct lpfc_iocbq *cmdiocb, 11171 struct lpfc_iocbq *rspiocb) 11172 { 11173 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 11174 u32 ulp_word4 = get_job_word4(phba, rspiocb); 11175 11176 if (ulp_status != IOSTAT_FABRIC_RJT || 11177 ulp_word4 != RJT_LOGIN_REQUIRED) 11178 return 0; 11179 else 11180 return 1; 11181 } 11182 11183 /** 11184 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command 11185 * @phba: pointer to lpfc hba data structure. 11186 * @cmdiocb: pointer to lpfc command iocb data structure. 11187 * @rspiocb: pointer to lpfc response iocb data structure. 11188 * 11189 * This routine is the completion callback function to a Fabric Discover 11190 * (FDISC) ELS command. Since all the FDISC ELS commands are issued 11191 * single threaded, each FDISC completion callback function will reset 11192 * the discovery timer for all vports such that the timers will not get 11193 * unnecessary timeout. The function checks the FDISC IOCB status. If error 11194 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the 11195 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID 11196 * assigned to the vport has been changed with the completion of the FDISC 11197 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index) 11198 * are unregistered from the HBA, and then the lpfc_register_new_vport() 11199 * routine is invoked to register new vport with the HBA. Otherwise, the 11200 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name 11201 * Server for State Change Request (SCR). 11202 **/ 11203 static void 11204 lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 11205 struct lpfc_iocbq *rspiocb) 11206 { 11207 struct lpfc_vport *vport = cmdiocb->vport; 11208 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 11209 struct lpfc_nodelist *np; 11210 struct lpfc_nodelist *next_np; 11211 struct lpfc_iocbq *piocb; 11212 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf, *prsp; 11213 struct serv_parm *sp; 11214 uint8_t fabric_param_changed; 11215 u32 ulp_status, ulp_word4; 11216 11217 ulp_status = get_job_ulpstatus(phba, rspiocb); 11218 ulp_word4 = get_job_word4(phba, rspiocb); 11219 11220 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 11221 "0123 FDISC completes. x%x/x%x prevDID: x%x\n", 11222 ulp_status, ulp_word4, 11223 vport->fc_prevDID); 11224 /* Since all FDISCs are being single threaded, we 11225 * must reset the discovery timer for ALL vports 11226 * waiting to send FDISC when one completes. 11227 */ 11228 list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { 11229 lpfc_set_disctmo(piocb->vport); 11230 } 11231 11232 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11233 "FDISC cmpl: status:x%x/x%x prevdid:x%x", 11234 ulp_status, ulp_word4, vport->fc_prevDID); 11235 11236 if (ulp_status) { 11237 11238 if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) { 11239 lpfc_retry_pport_discovery(phba); 11240 goto out; 11241 } 11242 11243 /* Check for retry */ 11244 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) 11245 goto out; 11246 /* Warn FDISC status */ 11247 lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, 11248 "0126 FDISC cmpl status: x%x/x%x)\n", 11249 ulp_status, ulp_word4); 11250 goto fdisc_failed; 11251 } 11252 11253 lpfc_check_nlp_post_devloss(vport, ndlp); 11254 11255 clear_bit(FC_VPORT_CVL_RCVD, &vport->fc_flag); 11256 clear_bit(FC_VPORT_LOGO_RCVD, &vport->fc_flag); 11257 set_bit(FC_FABRIC, &vport->fc_flag); 11258 if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP) 11259 set_bit(FC_PUBLIC_LOOP, &vport->fc_flag); 11260 11261 vport->fc_myDID = ulp_word4 & Mask_DID; 11262 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); 11263 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 11264 if (!prsp) 11265 goto out; 11266 if (!lpfc_is_els_acc_rsp(prsp)) 11267 goto out; 11268 11269 sp = prsp->virt + sizeof(uint32_t); 11270 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); 11271 memcpy(&vport->fabric_portname, &sp->portName, 11272 sizeof(struct lpfc_name)); 11273 memcpy(&vport->fabric_nodename, &sp->nodeName, 11274 sizeof(struct lpfc_name)); 11275 if (fabric_param_changed && 11276 !test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) { 11277 /* If our NportID changed, we need to ensure all 11278 * remaining NPORTs get unreg_login'ed so we can 11279 * issue unreg_vpi. 11280 */ 11281 list_for_each_entry_safe(np, next_np, 11282 &vport->fc_nodes, nlp_listp) { 11283 if ((np->nlp_state != NLP_STE_NPR_NODE) || 11284 !test_bit(NLP_NPR_ADISC, &np->nlp_flag)) 11285 continue; 11286 clear_bit(NLP_NPR_ADISC, &np->nlp_flag); 11287 lpfc_unreg_rpi(vport, np); 11288 } 11289 lpfc_cleanup_pending_mbox(vport); 11290 11291 if (phba->sli_rev == LPFC_SLI_REV4) 11292 lpfc_sli4_unreg_all_rpis(vport); 11293 11294 lpfc_mbx_unreg_vpi(vport); 11295 set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); 11296 if (phba->sli_rev == LPFC_SLI_REV4) 11297 set_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag); 11298 else 11299 set_bit(FC_LOGO_RCVD_DID_CHNG, &vport->fc_flag); 11300 } else if ((phba->sli_rev == LPFC_SLI_REV4) && 11301 !test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) { 11302 /* 11303 * Driver needs to re-reg VPI in order for f/w 11304 * to update the MAC address. 11305 */ 11306 lpfc_register_new_vport(phba, vport, ndlp); 11307 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 11308 goto out; 11309 } 11310 11311 if (test_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag)) 11312 lpfc_issue_init_vpi(vport); 11313 else if (test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) 11314 lpfc_register_new_vport(phba, vport, ndlp); 11315 else 11316 lpfc_do_scr_ns_plogi(phba, vport); 11317 11318 /* The FDISC completed successfully. Move the fabric ndlp to 11319 * UNMAPPED state and register with the transport. 11320 */ 11321 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 11322 goto out; 11323 11324 fdisc_failed: 11325 if (vport->fc_vport && 11326 (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS)) 11327 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11328 /* Cancel discovery timer */ 11329 lpfc_can_disctmo(vport); 11330 out: 11331 lpfc_els_free_iocb(phba, cmdiocb); 11332 lpfc_nlp_put(ndlp); 11333 } 11334 11335 /** 11336 * lpfc_issue_els_fdisc - Issue a fdisc iocb command 11337 * @vport: pointer to a virtual N_Port data structure. 11338 * @ndlp: pointer to a node-list data structure. 11339 * @retry: number of retries to the command IOCB. 11340 * 11341 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to 11342 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb() 11343 * routine to issue the IOCB, which makes sure only one outstanding fabric 11344 * IOCB will be sent off HBA at any given time. 11345 * 11346 * Note that the ndlp reference count will be incremented by 1 for holding the 11347 * ndlp and the reference to ndlp will be stored into the ndlp field of 11348 * the IOCB for the completion callback function to the FDISC ELS command. 11349 * 11350 * Return code 11351 * 0 - Successfully issued fdisc iocb command 11352 * 1 - Failed to issue fdisc iocb command 11353 **/ 11354 static int 11355 lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 11356 uint8_t retry) 11357 { 11358 struct lpfc_hba *phba = vport->phba; 11359 IOCB_t *icmd; 11360 union lpfc_wqe128 *wqe = NULL; 11361 struct lpfc_iocbq *elsiocb; 11362 struct serv_parm *sp; 11363 uint8_t *pcmd; 11364 uint16_t cmdsize; 11365 int did = ndlp->nlp_DID; 11366 int rc; 11367 11368 vport->port_state = LPFC_FDISC; 11369 vport->fc_myDID = 0; 11370 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); 11371 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, 11372 ELS_CMD_FDISC); 11373 if (!elsiocb) { 11374 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11375 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11376 "0255 Issue FDISC: no IOCB\n"); 11377 return 1; 11378 } 11379 11380 if (phba->sli_rev == LPFC_SLI_REV4) { 11381 wqe = &elsiocb->wqe; 11382 bf_set(els_req64_sid, &wqe->els_req, 0); 11383 bf_set(els_req64_sp, &wqe->els_req, 1); 11384 } else { 11385 icmd = &elsiocb->iocb; 11386 icmd->un.elsreq64.myID = 0; 11387 icmd->un.elsreq64.fl = 1; 11388 icmd->ulpCt_h = 1; 11389 icmd->ulpCt_l = 0; 11390 } 11391 11392 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 11393 *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; 11394 pcmd += sizeof(uint32_t); /* CSP Word 1 */ 11395 memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); 11396 sp = (struct serv_parm *) pcmd; 11397 /* Setup CSPs accordingly for Fabric */ 11398 sp->cmn.e_d_tov = 0; 11399 sp->cmn.w2.r_a_tov = 0; 11400 sp->cmn.virtual_fabric_support = 0; 11401 sp->cls1.classValid = 0; 11402 sp->cls2.seqDelivery = 1; 11403 sp->cls3.seqDelivery = 1; 11404 11405 pcmd += sizeof(uint32_t); /* CSP Word 2 */ 11406 pcmd += sizeof(uint32_t); /* CSP Word 3 */ 11407 pcmd += sizeof(uint32_t); /* CSP Word 4 */ 11408 pcmd += sizeof(uint32_t); /* Port Name */ 11409 memcpy(pcmd, &vport->fc_portname, 8); 11410 pcmd += sizeof(uint32_t); /* Node Name */ 11411 pcmd += sizeof(uint32_t); /* Node Name */ 11412 memcpy(pcmd, &vport->fc_nodename, 8); 11413 sp->cmn.valid_vendor_ver_level = 0; 11414 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion)); 11415 lpfc_set_disctmo(vport); 11416 11417 phba->fc_stat.elsXmitFDISC++; 11418 elsiocb->cmd_cmpl = lpfc_cmpl_els_fdisc; 11419 11420 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11421 "Issue FDISC: did:x%x", 11422 did, 0, 0); 11423 11424 elsiocb->ndlp = lpfc_nlp_get(ndlp); 11425 if (!elsiocb->ndlp) 11426 goto err_out; 11427 11428 rc = lpfc_issue_fabric_iocb(phba, elsiocb); 11429 if (rc == IOCB_ERROR) { 11430 lpfc_nlp_put(ndlp); 11431 goto err_out; 11432 } 11433 11434 lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); 11435 return 0; 11436 11437 err_out: 11438 lpfc_els_free_iocb(phba, elsiocb); 11439 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 11440 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 11441 "0256 Issue FDISC: Cannot send IOCB\n"); 11442 return 1; 11443 } 11444 11445 /** 11446 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo 11447 * @phba: pointer to lpfc hba data structure. 11448 * @cmdiocb: pointer to lpfc command iocb data structure. 11449 * @rspiocb: pointer to lpfc response iocb data structure. 11450 * 11451 * This routine is the completion callback function to the issuing of a LOGO 11452 * ELS command off a vport. It frees the command IOCB and then decrement the 11453 * reference count held on ndlp for this completion function, indicating that 11454 * the reference to the ndlp is no long needed. Note that the 11455 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this 11456 * callback function and an additional explicit ndlp reference decrementation 11457 * will trigger the actual release of the ndlp. 11458 **/ 11459 static void 11460 lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 11461 struct lpfc_iocbq *rspiocb) 11462 { 11463 struct lpfc_vport *vport = cmdiocb->vport; 11464 IOCB_t *irsp; 11465 struct lpfc_nodelist *ndlp; 11466 u32 ulp_status, ulp_word4, did, tmo; 11467 11468 ndlp = cmdiocb->ndlp; 11469 11470 ulp_status = get_job_ulpstatus(phba, rspiocb); 11471 ulp_word4 = get_job_word4(phba, rspiocb); 11472 11473 if (phba->sli_rev == LPFC_SLI_REV4) { 11474 did = get_job_els_rsp64_did(phba, cmdiocb); 11475 tmo = get_wqe_tmo(cmdiocb); 11476 } else { 11477 irsp = &rspiocb->iocb; 11478 did = get_job_els_rsp64_did(phba, rspiocb); 11479 tmo = irsp->ulpTimeout; 11480 } 11481 11482 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11483 "LOGO npiv cmpl: status:x%x/x%x did:x%x", 11484 ulp_status, ulp_word4, did); 11485 11486 /* NPIV LOGO completes to NPort <nlp_DID> */ 11487 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 11488 "2928 NPIV LOGO completes to NPort x%x " 11489 "Data: x%x x%x x%x x%x x%x x%lx x%x\n", 11490 ndlp->nlp_DID, ulp_status, ulp_word4, 11491 tmo, vport->num_disc_nodes, 11492 kref_read(&ndlp->kref), ndlp->nlp_flag, 11493 ndlp->fc4_xpt_flags); 11494 11495 if (ulp_status == IOSTAT_SUCCESS) { 11496 clear_bit(FC_NDISC_ACTIVE, &vport->fc_flag); 11497 clear_bit(FC_FABRIC, &vport->fc_flag); 11498 lpfc_can_disctmo(vport); 11499 } 11500 11501 if (ndlp->save_flags & NLP_WAIT_FOR_LOGO) { 11502 /* Wake up lpfc_vport_delete if waiting...*/ 11503 if (ndlp->logo_waitq) 11504 wake_up(ndlp->logo_waitq); 11505 clear_bit(NLP_ISSUE_LOGO, &ndlp->nlp_flag); 11506 clear_bit(NLP_LOGO_SND, &ndlp->nlp_flag); 11507 spin_lock_irq(&ndlp->lock); 11508 ndlp->save_flags &= ~NLP_WAIT_FOR_LOGO; 11509 spin_unlock_irq(&ndlp->lock); 11510 } 11511 11512 /* Safe to release resources now. */ 11513 lpfc_els_free_iocb(phba, cmdiocb); 11514 lpfc_nlp_put(ndlp); 11515 } 11516 11517 /** 11518 * lpfc_issue_els_npiv_logo - Issue a logo off a vport 11519 * @vport: pointer to a virtual N_Port data structure. 11520 * @ndlp: pointer to a node-list data structure. 11521 * 11522 * This routine issues a LOGO ELS command to an @ndlp off a @vport. 11523 * 11524 * Note that the ndlp reference count will be incremented by 1 for holding the 11525 * ndlp and the reference to ndlp will be stored into the ndlp field of 11526 * the IOCB for the completion callback function to the LOGO ELS command. 11527 * 11528 * Return codes 11529 * 0 - Successfully issued logo off the @vport 11530 * 1 - Failed to issue logo off the @vport 11531 **/ 11532 int 11533 lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 11534 { 11535 int rc = 0; 11536 struct lpfc_hba *phba = vport->phba; 11537 struct lpfc_iocbq *elsiocb; 11538 uint8_t *pcmd; 11539 uint16_t cmdsize; 11540 11541 cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); 11542 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, 11543 ELS_CMD_LOGO); 11544 if (!elsiocb) 11545 return 1; 11546 11547 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; 11548 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; 11549 pcmd += sizeof(uint32_t); 11550 11551 /* Fill in LOGO payload */ 11552 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); 11553 pcmd += sizeof(uint32_t); 11554 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); 11555 11556 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 11557 "Issue LOGO npiv did:x%x flg:x%lx", 11558 ndlp->nlp_DID, ndlp->nlp_flag, 0); 11559 11560 elsiocb->cmd_cmpl = lpfc_cmpl_els_npiv_logo; 11561 set_bit(NLP_LOGO_SND, &ndlp->nlp_flag); 11562 elsiocb->ndlp = lpfc_nlp_get(ndlp); 11563 if (!elsiocb->ndlp) { 11564 lpfc_els_free_iocb(phba, elsiocb); 11565 goto err; 11566 } 11567 11568 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); 11569 if (rc == IOCB_ERROR) { 11570 lpfc_els_free_iocb(phba, elsiocb); 11571 lpfc_nlp_put(ndlp); 11572 goto err; 11573 } 11574 return 0; 11575 11576 err: 11577 clear_bit(NLP_LOGO_SND, &ndlp->nlp_flag); 11578 return 1; 11579 } 11580 11581 /** 11582 * lpfc_fabric_block_timeout - Handler function to the fabric block timer 11583 * @t: timer context used to obtain the lpfc hba. 11584 * 11585 * This routine is invoked by the fabric iocb block timer after 11586 * timeout. It posts the fabric iocb block timeout event by setting the 11587 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes 11588 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for 11589 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the 11590 * posted event WORKER_FABRIC_BLOCK_TMO. 11591 **/ 11592 void 11593 lpfc_fabric_block_timeout(struct timer_list *t) 11594 { 11595 struct lpfc_hba *phba = from_timer(phba, t, fabric_block_timer); 11596 unsigned long iflags; 11597 uint32_t tmo_posted; 11598 11599 spin_lock_irqsave(&phba->pport->work_port_lock, iflags); 11600 tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; 11601 if (!tmo_posted) 11602 phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; 11603 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); 11604 11605 if (!tmo_posted) 11606 lpfc_worker_wake_up(phba); 11607 return; 11608 } 11609 11610 /** 11611 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list 11612 * @phba: pointer to lpfc hba data structure. 11613 * 11614 * This routine issues one fabric iocb from the driver internal list to 11615 * the HBA. It first checks whether it's ready to issue one fabric iocb to 11616 * the HBA (whether there is no outstanding fabric iocb). If so, it shall 11617 * remove one pending fabric iocb from the driver internal list and invokes 11618 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA. 11619 **/ 11620 static void 11621 lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) 11622 { 11623 struct lpfc_iocbq *iocb; 11624 unsigned long iflags; 11625 int ret; 11626 11627 repeat: 11628 iocb = NULL; 11629 spin_lock_irqsave(&phba->hbalock, iflags); 11630 /* Post any pending iocb to the SLI layer */ 11631 if (atomic_read(&phba->fabric_iocb_count) == 0) { 11632 list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), 11633 list); 11634 if (iocb) 11635 /* Increment fabric iocb count to hold the position */ 11636 atomic_inc(&phba->fabric_iocb_count); 11637 } 11638 spin_unlock_irqrestore(&phba->hbalock, iflags); 11639 if (iocb) { 11640 iocb->fabric_cmd_cmpl = iocb->cmd_cmpl; 11641 iocb->cmd_cmpl = lpfc_cmpl_fabric_iocb; 11642 iocb->cmd_flag |= LPFC_IO_FABRIC; 11643 11644 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, 11645 "Fabric sched1: ste:x%x", 11646 iocb->vport->port_state, 0, 0); 11647 11648 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); 11649 11650 if (ret == IOCB_ERROR) { 11651 iocb->cmd_cmpl = iocb->fabric_cmd_cmpl; 11652 iocb->fabric_cmd_cmpl = NULL; 11653 iocb->cmd_flag &= ~LPFC_IO_FABRIC; 11654 set_job_ulpstatus(iocb, IOSTAT_LOCAL_REJECT); 11655 iocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED; 11656 iocb->cmd_cmpl(phba, iocb, iocb); 11657 11658 atomic_dec(&phba->fabric_iocb_count); 11659 goto repeat; 11660 } 11661 } 11662 } 11663 11664 /** 11665 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command 11666 * @phba: pointer to lpfc hba data structure. 11667 * 11668 * This routine unblocks the issuing fabric iocb command. The function 11669 * will clear the fabric iocb block bit and then invoke the routine 11670 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb 11671 * from the driver internal fabric iocb list. 11672 **/ 11673 void 11674 lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) 11675 { 11676 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 11677 11678 lpfc_resume_fabric_iocbs(phba); 11679 return; 11680 } 11681 11682 /** 11683 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command 11684 * @phba: pointer to lpfc hba data structure. 11685 * 11686 * This routine blocks the issuing fabric iocb for a specified amount of 11687 * time (currently 100 ms). This is done by set the fabric iocb block bit 11688 * and set up a timeout timer for 100ms. When the block bit is set, no more 11689 * fabric iocb will be issued out of the HBA. 11690 **/ 11691 static void 11692 lpfc_block_fabric_iocbs(struct lpfc_hba *phba) 11693 { 11694 int blocked; 11695 11696 blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 11697 /* Start a timer to unblock fabric iocbs after 100ms */ 11698 if (!blocked) 11699 mod_timer(&phba->fabric_block_timer, 11700 jiffies + msecs_to_jiffies(100)); 11701 11702 return; 11703 } 11704 11705 /** 11706 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb 11707 * @phba: pointer to lpfc hba data structure. 11708 * @cmdiocb: pointer to lpfc command iocb data structure. 11709 * @rspiocb: pointer to lpfc response iocb data structure. 11710 * 11711 * This routine is the callback function that is put to the fabric iocb's 11712 * callback function pointer (iocb->cmd_cmpl). The original iocb's callback 11713 * function pointer has been stored in iocb->fabric_cmd_cmpl. This callback 11714 * function first restores and invokes the original iocb's callback function 11715 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next 11716 * fabric bound iocb from the driver internal fabric iocb list onto the wire. 11717 **/ 11718 static void 11719 lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 11720 struct lpfc_iocbq *rspiocb) 11721 { 11722 struct ls_rjt stat; 11723 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 11724 u32 ulp_word4 = get_job_word4(phba, rspiocb); 11725 11726 WARN_ON((cmdiocb->cmd_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC); 11727 11728 switch (ulp_status) { 11729 case IOSTAT_NPORT_RJT: 11730 case IOSTAT_FABRIC_RJT: 11731 if (ulp_word4 & RJT_UNAVAIL_TEMP) 11732 lpfc_block_fabric_iocbs(phba); 11733 break; 11734 11735 case IOSTAT_NPORT_BSY: 11736 case IOSTAT_FABRIC_BSY: 11737 lpfc_block_fabric_iocbs(phba); 11738 break; 11739 11740 case IOSTAT_LS_RJT: 11741 stat.un.ls_rjt_error_be = 11742 cpu_to_be32(ulp_word4); 11743 if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || 11744 (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) 11745 lpfc_block_fabric_iocbs(phba); 11746 break; 11747 } 11748 11749 BUG_ON(atomic_read(&phba->fabric_iocb_count) == 0); 11750 11751 cmdiocb->cmd_cmpl = cmdiocb->fabric_cmd_cmpl; 11752 cmdiocb->fabric_cmd_cmpl = NULL; 11753 cmdiocb->cmd_flag &= ~LPFC_IO_FABRIC; 11754 cmdiocb->cmd_cmpl(phba, cmdiocb, rspiocb); 11755 11756 atomic_dec(&phba->fabric_iocb_count); 11757 if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { 11758 /* Post any pending iocbs to HBA */ 11759 lpfc_resume_fabric_iocbs(phba); 11760 } 11761 } 11762 11763 /** 11764 * lpfc_issue_fabric_iocb - Issue a fabric iocb command 11765 * @phba: pointer to lpfc hba data structure. 11766 * @iocb: pointer to lpfc command iocb data structure. 11767 * 11768 * This routine is used as the top-level API for issuing a fabric iocb command 11769 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver 11770 * function makes sure that only one fabric bound iocb will be outstanding at 11771 * any given time. As such, this function will first check to see whether there 11772 * is already an outstanding fabric iocb on the wire. If so, it will put the 11773 * newly issued iocb onto the driver internal fabric iocb list, waiting to be 11774 * issued later. Otherwise, it will issue the iocb on the wire and update the 11775 * fabric iocb count it indicate that there is one fabric iocb on the wire. 11776 * 11777 * Note, this implementation has a potential sending out fabric IOCBs out of 11778 * order. The problem is caused by the construction of the "ready" boolen does 11779 * not include the condition that the internal fabric IOCB list is empty. As 11780 * such, it is possible a fabric IOCB issued by this routine might be "jump" 11781 * ahead of the fabric IOCBs in the internal list. 11782 * 11783 * Return code 11784 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully 11785 * IOCB_ERROR - failed to issue fabric iocb 11786 **/ 11787 static int 11788 lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) 11789 { 11790 unsigned long iflags; 11791 int ready; 11792 int ret; 11793 11794 BUG_ON(atomic_read(&phba->fabric_iocb_count) > 1); 11795 11796 spin_lock_irqsave(&phba->hbalock, iflags); 11797 ready = atomic_read(&phba->fabric_iocb_count) == 0 && 11798 !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 11799 11800 if (ready) 11801 /* Increment fabric iocb count to hold the position */ 11802 atomic_inc(&phba->fabric_iocb_count); 11803 spin_unlock_irqrestore(&phba->hbalock, iflags); 11804 if (ready) { 11805 iocb->fabric_cmd_cmpl = iocb->cmd_cmpl; 11806 iocb->cmd_cmpl = lpfc_cmpl_fabric_iocb; 11807 iocb->cmd_flag |= LPFC_IO_FABRIC; 11808 11809 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, 11810 "Fabric sched2: ste:x%x", 11811 iocb->vport->port_state, 0, 0); 11812 11813 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); 11814 11815 if (ret == IOCB_ERROR) { 11816 iocb->cmd_cmpl = iocb->fabric_cmd_cmpl; 11817 iocb->fabric_cmd_cmpl = NULL; 11818 iocb->cmd_flag &= ~LPFC_IO_FABRIC; 11819 atomic_dec(&phba->fabric_iocb_count); 11820 } 11821 } else { 11822 spin_lock_irqsave(&phba->hbalock, iflags); 11823 list_add_tail(&iocb->list, &phba->fabric_iocb_list); 11824 spin_unlock_irqrestore(&phba->hbalock, iflags); 11825 ret = IOCB_SUCCESS; 11826 } 11827 return ret; 11828 } 11829 11830 /** 11831 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list 11832 * @vport: pointer to a virtual N_Port data structure. 11833 * 11834 * This routine aborts all the IOCBs associated with a @vport from the 11835 * driver internal fabric IOCB list. The list contains fabric IOCBs to be 11836 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB 11837 * list, removes each IOCB associated with the @vport off the list, set the 11838 * status field to IOSTAT_LOCAL_REJECT, and invokes the callback function 11839 * associated with the IOCB. 11840 **/ 11841 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) 11842 { 11843 LIST_HEAD(completions); 11844 struct lpfc_hba *phba = vport->phba; 11845 struct lpfc_iocbq *tmp_iocb, *piocb; 11846 11847 spin_lock_irq(&phba->hbalock); 11848 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, 11849 list) { 11850 11851 if (piocb->vport != vport) 11852 continue; 11853 11854 list_move_tail(&piocb->list, &completions); 11855 } 11856 spin_unlock_irq(&phba->hbalock); 11857 11858 /* Cancel all the IOCBs from the completions list */ 11859 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 11860 IOERR_SLI_ABORTED); 11861 } 11862 11863 /** 11864 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list 11865 * @ndlp: pointer to a node-list data structure. 11866 * 11867 * This routine aborts all the IOCBs associated with an @ndlp from the 11868 * driver internal fabric IOCB list. The list contains fabric IOCBs to be 11869 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB 11870 * list, removes each IOCB associated with the @ndlp off the list, set the 11871 * status field to IOSTAT_LOCAL_REJECT, and invokes the callback function 11872 * associated with the IOCB. 11873 **/ 11874 void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) 11875 { 11876 LIST_HEAD(completions); 11877 struct lpfc_hba *phba = ndlp->phba; 11878 struct lpfc_iocbq *tmp_iocb, *piocb; 11879 struct lpfc_sli_ring *pring; 11880 11881 pring = lpfc_phba_elsring(phba); 11882 11883 if (unlikely(!pring)) 11884 return; 11885 11886 spin_lock_irq(&phba->hbalock); 11887 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, 11888 list) { 11889 if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { 11890 11891 list_move_tail(&piocb->list, &completions); 11892 } 11893 } 11894 spin_unlock_irq(&phba->hbalock); 11895 11896 /* Cancel all the IOCBs from the completions list */ 11897 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 11898 IOERR_SLI_ABORTED); 11899 } 11900 11901 /** 11902 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list 11903 * @phba: pointer to lpfc hba data structure. 11904 * 11905 * This routine aborts all the IOCBs currently on the driver internal 11906 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS 11907 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB 11908 * list, removes IOCBs off the list, set the status field to 11909 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with 11910 * the IOCB. 11911 **/ 11912 void lpfc_fabric_abort_hba(struct lpfc_hba *phba) 11913 { 11914 LIST_HEAD(completions); 11915 11916 spin_lock_irq(&phba->hbalock); 11917 list_splice_init(&phba->fabric_iocb_list, &completions); 11918 spin_unlock_irq(&phba->hbalock); 11919 11920 /* Cancel all the IOCBs from the completions list */ 11921 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 11922 IOERR_SLI_ABORTED); 11923 } 11924 11925 /** 11926 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport 11927 * @vport: pointer to lpfc vport data structure. 11928 * 11929 * This routine is invoked by the vport cleanup for deletions and the cleanup 11930 * for an ndlp on removal. 11931 **/ 11932 void 11933 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport) 11934 { 11935 struct lpfc_hba *phba = vport->phba; 11936 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 11937 struct lpfc_nodelist *ndlp = NULL; 11938 unsigned long iflag = 0; 11939 11940 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock, iflag); 11941 list_for_each_entry_safe(sglq_entry, sglq_next, 11942 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { 11943 if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport) { 11944 lpfc_nlp_put(sglq_entry->ndlp); 11945 ndlp = sglq_entry->ndlp; 11946 sglq_entry->ndlp = NULL; 11947 11948 /* If the xri on the abts_els_sgl list is for the Fport 11949 * node and the vport is unloading, the xri aborted wcqe 11950 * likely isn't coming back. Just release the sgl. 11951 */ 11952 if (test_bit(FC_UNLOADING, &vport->load_flag) && 11953 ndlp->nlp_DID == Fabric_DID) { 11954 list_del(&sglq_entry->list); 11955 sglq_entry->state = SGL_FREED; 11956 list_add_tail(&sglq_entry->list, 11957 &phba->sli4_hba.lpfc_els_sgl_list); 11958 } 11959 } 11960 } 11961 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, iflag); 11962 return; 11963 } 11964 11965 /** 11966 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort 11967 * @phba: pointer to lpfc hba data structure. 11968 * @axri: pointer to the els xri abort wcqe structure. 11969 * 11970 * This routine is invoked by the worker thread to process a SLI4 slow-path 11971 * ELS aborted xri. 11972 **/ 11973 void 11974 lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba, 11975 struct sli4_wcqe_xri_aborted *axri) 11976 { 11977 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); 11978 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); 11979 uint16_t lxri = 0; 11980 11981 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 11982 unsigned long iflag = 0; 11983 struct lpfc_nodelist *ndlp; 11984 struct lpfc_sli_ring *pring; 11985 11986 pring = lpfc_phba_elsring(phba); 11987 11988 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock, iflag); 11989 list_for_each_entry_safe(sglq_entry, sglq_next, 11990 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { 11991 if (sglq_entry->sli4_xritag == xri) { 11992 list_del(&sglq_entry->list); 11993 ndlp = sglq_entry->ndlp; 11994 sglq_entry->ndlp = NULL; 11995 list_add_tail(&sglq_entry->list, 11996 &phba->sli4_hba.lpfc_els_sgl_list); 11997 sglq_entry->state = SGL_FREED; 11998 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, 11999 iflag); 12000 12001 if (ndlp) { 12002 lpfc_set_rrq_active(phba, ndlp, 12003 sglq_entry->sli4_lxritag, 12004 rxid, 1); 12005 lpfc_nlp_put(ndlp); 12006 } 12007 12008 /* Check if TXQ queue needs to be serviced */ 12009 if (pring && !list_empty(&pring->txq)) 12010 lpfc_worker_wake_up(phba); 12011 return; 12012 } 12013 } 12014 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, iflag); 12015 lxri = lpfc_sli4_xri_inrange(phba, xri); 12016 if (lxri == NO_XRI) 12017 return; 12018 12019 spin_lock_irqsave(&phba->hbalock, iflag); 12020 sglq_entry = __lpfc_get_active_sglq(phba, lxri); 12021 if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) { 12022 spin_unlock_irqrestore(&phba->hbalock, iflag); 12023 return; 12024 } 12025 sglq_entry->state = SGL_XRI_ABORTED; 12026 spin_unlock_irqrestore(&phba->hbalock, iflag); 12027 return; 12028 } 12029 12030 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req. 12031 * @vport: pointer to virtual port object. 12032 * @ndlp: nodelist pointer for the impacted node. 12033 * 12034 * The driver calls this routine in response to an SLI4 XRI ABORT CQE 12035 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event, 12036 * the driver is required to send a LOGO to the remote node before it 12037 * attempts to recover its login to the remote node. 12038 */ 12039 void 12040 lpfc_sli_abts_recover_port(struct lpfc_vport *vport, 12041 struct lpfc_nodelist *ndlp) 12042 { 12043 struct Scsi_Host *shost; 12044 struct lpfc_hba *phba; 12045 unsigned long flags = 0; 12046 12047 shost = lpfc_shost_from_vport(vport); 12048 phba = vport->phba; 12049 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) { 12050 lpfc_printf_log(phba, KERN_INFO, 12051 LOG_SLI, "3093 No rport recovery needed. " 12052 "rport in state 0x%x\n", ndlp->nlp_state); 12053 return; 12054 } 12055 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 12056 "3094 Start rport recovery on shost id 0x%x " 12057 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x " 12058 "flag 0x%lx\n", 12059 shost->host_no, ndlp->nlp_DID, 12060 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state, 12061 ndlp->nlp_flag); 12062 /* 12063 * The rport is not responding. Remove the FCP-2 flag to prevent 12064 * an ADISC in the follow-up recovery code. 12065 */ 12066 spin_lock_irqsave(&ndlp->lock, flags); 12067 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 12068 spin_unlock_irqrestore(&ndlp->lock, flags); 12069 set_bit(NLP_ISSUE_LOGO, &ndlp->nlp_flag); 12070 lpfc_unreg_rpi(vport, ndlp); 12071 } 12072 12073 static void lpfc_init_cs_ctl_bitmap(struct lpfc_vport *vport) 12074 { 12075 bitmap_zero(vport->vmid_priority_range, LPFC_VMID_MAX_PRIORITY_RANGE); 12076 } 12077 12078 static void 12079 lpfc_vmid_set_cs_ctl_range(struct lpfc_vport *vport, u32 min, u32 max) 12080 { 12081 u32 i; 12082 12083 if ((min > max) || (max > LPFC_VMID_MAX_PRIORITY_RANGE)) 12084 return; 12085 12086 for (i = min; i <= max; i++) 12087 set_bit(i, vport->vmid_priority_range); 12088 } 12089 12090 static void lpfc_vmid_put_cs_ctl(struct lpfc_vport *vport, u32 ctcl_vmid) 12091 { 12092 set_bit(ctcl_vmid, vport->vmid_priority_range); 12093 } 12094 12095 u32 lpfc_vmid_get_cs_ctl(struct lpfc_vport *vport) 12096 { 12097 u32 i; 12098 12099 i = find_first_bit(vport->vmid_priority_range, 12100 LPFC_VMID_MAX_PRIORITY_RANGE); 12101 12102 if (i == LPFC_VMID_MAX_PRIORITY_RANGE) 12103 return 0; 12104 12105 clear_bit(i, vport->vmid_priority_range); 12106 return i; 12107 } 12108 12109 #define MAX_PRIORITY_DESC 255 12110 12111 static void 12112 lpfc_cmpl_els_qfpa(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 12113 struct lpfc_iocbq *rspiocb) 12114 { 12115 struct lpfc_vport *vport = cmdiocb->vport; 12116 struct priority_range_desc *desc; 12117 struct lpfc_dmabuf *prsp = NULL; 12118 struct lpfc_vmid_priority_range *vmid_range = NULL; 12119 u32 *data; 12120 struct lpfc_dmabuf *dmabuf = cmdiocb->cmd_dmabuf; 12121 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 12122 u32 ulp_word4 = get_job_word4(phba, rspiocb); 12123 u8 *pcmd, max_desc; 12124 u32 len, i; 12125 struct lpfc_nodelist *ndlp = cmdiocb->ndlp; 12126 12127 prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list); 12128 if (!prsp) 12129 goto out; 12130 12131 pcmd = prsp->virt; 12132 data = (u32 *)pcmd; 12133 if (data[0] == ELS_CMD_LS_RJT) { 12134 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 12135 "3277 QFPA LS_RJT x%x x%x\n", 12136 data[0], data[1]); 12137 goto out; 12138 } 12139 if (ulp_status) { 12140 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 12141 "6529 QFPA failed with status x%x x%x\n", 12142 ulp_status, ulp_word4); 12143 goto out; 12144 } 12145 12146 if (!vport->qfpa_res) { 12147 max_desc = FCELSSIZE / sizeof(*vport->qfpa_res); 12148 vport->qfpa_res = kcalloc(max_desc, sizeof(*vport->qfpa_res), 12149 GFP_KERNEL); 12150 if (!vport->qfpa_res) 12151 goto out; 12152 } 12153 12154 len = *((u32 *)(pcmd + 4)); 12155 len = be32_to_cpu(len); 12156 memcpy(vport->qfpa_res, pcmd, len + 8); 12157 len = len / LPFC_PRIORITY_RANGE_DESC_SIZE; 12158 12159 desc = (struct priority_range_desc *)(pcmd + 8); 12160 vmid_range = vport->vmid_priority.vmid_range; 12161 if (!vmid_range) { 12162 vmid_range = kcalloc(MAX_PRIORITY_DESC, sizeof(*vmid_range), 12163 GFP_KERNEL); 12164 if (!vmid_range) { 12165 kfree(vport->qfpa_res); 12166 goto out; 12167 } 12168 vport->vmid_priority.vmid_range = vmid_range; 12169 } 12170 vport->vmid_priority.num_descriptors = len; 12171 12172 for (i = 0; i < len; i++, vmid_range++, desc++) { 12173 lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS, 12174 "6539 vmid values low=%d, high=%d, qos=%d, " 12175 "local ve id=%d\n", desc->lo_range, 12176 desc->hi_range, desc->qos_priority, 12177 desc->local_ve_id); 12178 12179 vmid_range->low = desc->lo_range << 1; 12180 if (desc->local_ve_id == QFPA_ODD_ONLY) 12181 vmid_range->low++; 12182 if (desc->qos_priority) 12183 vport->vmid_flag |= LPFC_VMID_QOS_ENABLED; 12184 vmid_range->qos = desc->qos_priority; 12185 12186 vmid_range->high = desc->hi_range << 1; 12187 if ((desc->local_ve_id == QFPA_ODD_ONLY) || 12188 (desc->local_ve_id == QFPA_EVEN_ODD)) 12189 vmid_range->high++; 12190 } 12191 lpfc_init_cs_ctl_bitmap(vport); 12192 for (i = 0; i < vport->vmid_priority.num_descriptors; i++) { 12193 lpfc_vmid_set_cs_ctl_range(vport, 12194 vport->vmid_priority.vmid_range[i].low, 12195 vport->vmid_priority.vmid_range[i].high); 12196 } 12197 12198 vport->vmid_flag |= LPFC_VMID_QFPA_CMPL; 12199 out: 12200 lpfc_els_free_iocb(phba, cmdiocb); 12201 lpfc_nlp_put(ndlp); 12202 } 12203 12204 int lpfc_issue_els_qfpa(struct lpfc_vport *vport) 12205 { 12206 struct lpfc_hba *phba = vport->phba; 12207 struct lpfc_nodelist *ndlp; 12208 struct lpfc_iocbq *elsiocb; 12209 u8 *pcmd; 12210 int ret; 12211 12212 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 12213 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 12214 return -ENXIO; 12215 12216 elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_QFPA_SIZE, 2, ndlp, 12217 ndlp->nlp_DID, ELS_CMD_QFPA); 12218 if (!elsiocb) 12219 return -ENOMEM; 12220 12221 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 12222 12223 *((u32 *)(pcmd)) = ELS_CMD_QFPA; 12224 pcmd += 4; 12225 12226 elsiocb->cmd_cmpl = lpfc_cmpl_els_qfpa; 12227 12228 elsiocb->ndlp = lpfc_nlp_get(ndlp); 12229 if (!elsiocb->ndlp) { 12230 lpfc_els_free_iocb(vport->phba, elsiocb); 12231 return -ENXIO; 12232 } 12233 12234 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 2); 12235 if (ret != IOCB_SUCCESS) { 12236 lpfc_els_free_iocb(phba, elsiocb); 12237 lpfc_nlp_put(ndlp); 12238 return -EIO; 12239 } 12240 vport->vmid_flag &= ~LPFC_VMID_QOS_ENABLED; 12241 return 0; 12242 } 12243 12244 int 12245 lpfc_vmid_uvem(struct lpfc_vport *vport, 12246 struct lpfc_vmid *vmid, bool instantiated) 12247 { 12248 struct lpfc_vem_id_desc *vem_id_desc; 12249 struct lpfc_nodelist *ndlp; 12250 struct lpfc_iocbq *elsiocb; 12251 struct instantiated_ve_desc *inst_desc; 12252 struct lpfc_vmid_context *vmid_context; 12253 u8 *pcmd; 12254 u32 *len; 12255 int ret = 0; 12256 12257 ndlp = lpfc_findnode_did(vport, Fabric_DID); 12258 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 12259 return -ENXIO; 12260 12261 vmid_context = kmalloc(sizeof(*vmid_context), GFP_KERNEL); 12262 if (!vmid_context) 12263 return -ENOMEM; 12264 elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_UVEM_SIZE, 2, 12265 ndlp, Fabric_DID, ELS_CMD_UVEM); 12266 if (!elsiocb) 12267 goto out; 12268 12269 lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS, 12270 "3427 Host vmid %s %d\n", 12271 vmid->host_vmid, instantiated); 12272 vmid_context->vmp = vmid; 12273 vmid_context->nlp = ndlp; 12274 vmid_context->instantiated = instantiated; 12275 elsiocb->vmid_tag.vmid_context = vmid_context; 12276 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; 12277 12278 if (!memchr_inv(vport->lpfc_vmid_host_uuid, 0, 12279 sizeof(vport->lpfc_vmid_host_uuid))) 12280 memcpy(vport->lpfc_vmid_host_uuid, vmid->host_vmid, 12281 sizeof(vport->lpfc_vmid_host_uuid)); 12282 12283 *((u32 *)(pcmd)) = ELS_CMD_UVEM; 12284 len = (u32 *)(pcmd + 4); 12285 *len = cpu_to_be32(LPFC_UVEM_SIZE - 8); 12286 12287 vem_id_desc = (struct lpfc_vem_id_desc *)(pcmd + 8); 12288 vem_id_desc->tag = be32_to_cpu(VEM_ID_DESC_TAG); 12289 vem_id_desc->length = be32_to_cpu(LPFC_UVEM_VEM_ID_DESC_SIZE); 12290 memcpy(vem_id_desc->vem_id, vport->lpfc_vmid_host_uuid, 12291 sizeof(vem_id_desc->vem_id)); 12292 12293 inst_desc = (struct instantiated_ve_desc *)(pcmd + 32); 12294 inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG); 12295 inst_desc->length = be32_to_cpu(LPFC_UVEM_VE_MAP_DESC_SIZE); 12296 memcpy(inst_desc->global_vem_id, vmid->host_vmid, 12297 sizeof(inst_desc->global_vem_id)); 12298 12299 bf_set(lpfc_instantiated_nport_id, inst_desc, vport->fc_myDID); 12300 bf_set(lpfc_instantiated_local_id, inst_desc, 12301 vmid->un.cs_ctl_vmid); 12302 if (instantiated) { 12303 inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG); 12304 } else { 12305 inst_desc->tag = be32_to_cpu(DEINSTANTIATED_VE_DESC_TAG); 12306 lpfc_vmid_put_cs_ctl(vport, vmid->un.cs_ctl_vmid); 12307 } 12308 inst_desc->word6 = cpu_to_be32(inst_desc->word6); 12309 12310 elsiocb->cmd_cmpl = lpfc_cmpl_els_uvem; 12311 12312 elsiocb->ndlp = lpfc_nlp_get(ndlp); 12313 if (!elsiocb->ndlp) { 12314 lpfc_els_free_iocb(vport->phba, elsiocb); 12315 goto out; 12316 } 12317 12318 ret = lpfc_sli_issue_iocb(vport->phba, LPFC_ELS_RING, elsiocb, 0); 12319 if (ret != IOCB_SUCCESS) { 12320 lpfc_els_free_iocb(vport->phba, elsiocb); 12321 lpfc_nlp_put(ndlp); 12322 goto out; 12323 } 12324 12325 return 0; 12326 out: 12327 kfree(vmid_context); 12328 return -EIO; 12329 } 12330 12331 static void 12332 lpfc_cmpl_els_uvem(struct lpfc_hba *phba, struct lpfc_iocbq *icmdiocb, 12333 struct lpfc_iocbq *rspiocb) 12334 { 12335 struct lpfc_vport *vport = icmdiocb->vport; 12336 struct lpfc_dmabuf *prsp = NULL; 12337 struct lpfc_vmid_context *vmid_context = 12338 icmdiocb->vmid_tag.vmid_context; 12339 struct lpfc_nodelist *ndlp = icmdiocb->ndlp; 12340 u8 *pcmd; 12341 u32 *data; 12342 u32 ulp_status = get_job_ulpstatus(phba, rspiocb); 12343 u32 ulp_word4 = get_job_word4(phba, rspiocb); 12344 struct lpfc_dmabuf *dmabuf = icmdiocb->cmd_dmabuf; 12345 struct lpfc_vmid *vmid; 12346 12347 vmid = vmid_context->vmp; 12348 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) 12349 ndlp = NULL; 12350 12351 prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list); 12352 if (!prsp) 12353 goto out; 12354 pcmd = prsp->virt; 12355 data = (u32 *)pcmd; 12356 if (data[0] == ELS_CMD_LS_RJT) { 12357 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 12358 "4532 UVEM LS_RJT %x %x\n", data[0], data[1]); 12359 goto out; 12360 } 12361 if (ulp_status) { 12362 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 12363 "4533 UVEM error status %x: %x\n", 12364 ulp_status, ulp_word4); 12365 goto out; 12366 } 12367 spin_lock(&phba->hbalock); 12368 /* Set IN USE flag */ 12369 vport->vmid_flag |= LPFC_VMID_IN_USE; 12370 phba->pport->vmid_flag |= LPFC_VMID_IN_USE; 12371 spin_unlock(&phba->hbalock); 12372 12373 if (vmid_context->instantiated) { 12374 write_lock(&vport->vmid_lock); 12375 vmid->flag |= LPFC_VMID_REGISTERED; 12376 vmid->flag &= ~LPFC_VMID_REQ_REGISTER; 12377 write_unlock(&vport->vmid_lock); 12378 } 12379 12380 out: 12381 kfree(vmid_context); 12382 lpfc_els_free_iocb(phba, icmdiocb); 12383 lpfc_nlp_put(ndlp); 12384 } 12385