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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 | /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2004-2008 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * * * * This program is free software; you can redistribute it and/or * * modify it under the terms of version 2 of the GNU General * * Public License as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful. * * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * * TO BE LEGALLY INVALID. See the GNU General Public License for * * more details, a copy of which can be found in the file COPYING * * included with this package. * *******************************************************************/ #include <linux/blkdev.h> #include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/idr.h> #include <linux/interrupt.h> #include <linux/kthread.h> #include <linux/pci.h> #include <linux/spinlock.h> #include <scsi/scsi.h> #include <scsi/scsi_device.h> #include <scsi/scsi_host.h> #include <scsi/scsi_transport_fc.h> #include "lpfc_hw.h" #include "lpfc_sli.h" #include "lpfc_disc.h" #include "lpfc_scsi.h" #include "lpfc.h" #include "lpfc_logmsg.h" #include "lpfc_crtn.h" #include "lpfc_version.h" #include "lpfc_vport.h" inline void lpfc_vport_set_state(struct lpfc_vport *vport, enum fc_vport_state new_state) { struct fc_vport *fc_vport = vport->fc_vport; if (fc_vport) { /* * When the transport defines fc_vport_set state we will replace * this code with the following line */ /* fc_vport_set_state(fc_vport, new_state); */ if (new_state != FC_VPORT_INITIALIZING) fc_vport->vport_last_state = fc_vport->vport_state; fc_vport->vport_state = new_state; } /* for all the error states we will set the invternal state to FAILED */ switch (new_state) { case FC_VPORT_NO_FABRIC_SUPP: case FC_VPORT_NO_FABRIC_RSCS: case FC_VPORT_FABRIC_LOGOUT: case FC_VPORT_FABRIC_REJ_WWN: case FC_VPORT_FAILED: vport->port_state = LPFC_VPORT_FAILED; break; case FC_VPORT_LINKDOWN: vport->port_state = LPFC_VPORT_UNKNOWN; break; default: /* do nothing */ break; } } static int lpfc_alloc_vpi(struct lpfc_hba *phba) { int vpi; spin_lock_irq(&phba->hbalock); /* Start at bit 1 because vpi zero is reserved for the physical port */ vpi = find_next_zero_bit(phba->vpi_bmask, (phba->max_vpi + 1), 1); if (vpi > phba->max_vpi) vpi = 0; else set_bit(vpi, phba->vpi_bmask); spin_unlock_irq(&phba->hbalock); return vpi; } static void lpfc_free_vpi(struct lpfc_hba *phba, int vpi) { spin_lock_irq(&phba->hbalock); clear_bit(vpi, phba->vpi_bmask); spin_unlock_irq(&phba->hbalock); } static int lpfc_vport_sparm(struct lpfc_hba *phba, struct lpfc_vport *vport) { LPFC_MBOXQ_t *pmb; MAILBOX_t *mb; struct lpfc_dmabuf *mp; int rc; pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmb) { return -ENOMEM; } mb = &pmb->mb; lpfc_read_sparam(phba, pmb, vport->vpi); /* * Grab buffer pointer and clear context1 so we can use * lpfc_sli_issue_box_wait */ mp = (struct lpfc_dmabuf *) pmb->context1; pmb->context1 = NULL; pmb->vport = vport; rc = lpfc_sli_issue_mbox_wait(phba, pmb, phba->fc_ratov * 2); if (rc != MBX_SUCCESS) { if (signal_pending(current)) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT | LOG_VPORT, "1830 Signal aborted mbxCmd x%x\n", mb->mbxCommand); lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); if (rc != MBX_TIMEOUT) mempool_free(pmb, phba->mbox_mem_pool); return -EINTR; } else { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT | LOG_VPORT, "1818 VPort failed init, mbxCmd x%x " "READ_SPARM mbxStatus x%x, rc = x%x\n", mb->mbxCommand, mb->mbxStatus, rc); lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); if (rc != MBX_TIMEOUT) mempool_free(pmb, phba->mbox_mem_pool); return -EIO; } } memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, sizeof (struct lpfc_name)); memcpy(&vport->fc_portname, &vport->fc_sparam.portName, sizeof (struct lpfc_name)); lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); mempool_free(pmb, phba->mbox_mem_pool); return 0; } static int lpfc_valid_wwn_format(struct lpfc_hba *phba, struct lpfc_name *wwn, const char *name_type) { /* ensure that IEEE format 1 addresses * contain zeros in bits 59-48 */ if (!((wwn->u.wwn[0] >> 4) == 1 && ((wwn->u.wwn[0] & 0xf) != 0 || (wwn->u.wwn[1] & 0xf) != 0))) return 1; lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, "1822 Invalid %s: %02x:%02x:%02x:%02x:" "%02x:%02x:%02x:%02x\n", name_type, wwn->u.wwn[0], wwn->u.wwn[1], wwn->u.wwn[2], wwn->u.wwn[3], wwn->u.wwn[4], wwn->u.wwn[5], wwn->u.wwn[6], wwn->u.wwn[7]); return 0; } static int lpfc_unique_wwpn(struct lpfc_hba *phba, struct lpfc_vport *new_vport) { struct lpfc_vport *vport; unsigned long flags; spin_lock_irqsave(&phba->hbalock, flags); list_for_each_entry(vport, &phba->port_list, listentry) { if (vport == new_vport) continue; /* If they match, return not unique */ if (memcmp(&vport->fc_sparam.portName, &new_vport->fc_sparam.portName, sizeof(struct lpfc_name)) == 0) { spin_unlock_irqrestore(&phba->hbalock, flags); return 0; } } spin_unlock_irqrestore(&phba->hbalock, flags); return 1; } int lpfc_vport_create(struct fc_vport *fc_vport, bool disable) { struct lpfc_nodelist *ndlp; struct Scsi_Host *shost = fc_vport->shost; struct lpfc_vport *pport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = pport->phba; struct lpfc_vport *vport = NULL; int instance; int vpi; int rc = VPORT_ERROR; int status; if ((phba->sli_rev < 3) || !(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, "1808 Create VPORT failed: " "NPIV is not enabled: SLImode:%d\n", phba->sli_rev); rc = VPORT_INVAL; goto error_out; } vpi = lpfc_alloc_vpi(phba); if (vpi == 0) { lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, "1809 Create VPORT failed: " "Max VPORTs (%d) exceeded\n", phba->max_vpi); rc = VPORT_NORESOURCES; goto error_out; } /* Assign an unused board number */ if ((instance = lpfc_get_instance()) < 0) { lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, "1810 Create VPORT failed: Cannot get " "instance number\n"); lpfc_free_vpi(phba, vpi); rc = VPORT_NORESOURCES; goto error_out; } vport = lpfc_create_port(phba, instance, &fc_vport->dev); if (!vport) { lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, "1811 Create VPORT failed: vpi x%x\n", vpi); lpfc_free_vpi(phba, vpi); rc = VPORT_NORESOURCES; goto error_out; } vport->vpi = vpi; lpfc_debugfs_initialize(vport); if ((status = lpfc_vport_sparm(phba, vport))) { if (status == -EINTR) { lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, "1831 Create VPORT Interrupted.\n"); rc = VPORT_ERROR; } else { lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, "1813 Create VPORT failed. " "Cannot get sparam\n"); rc = VPORT_NORESOURCES; } lpfc_free_vpi(phba, vpi); destroy_port(vport); goto error_out; } memcpy(vport->fc_portname.u.wwn, vport->fc_sparam.portName.u.wwn, 8); memcpy(vport->fc_nodename.u.wwn, vport->fc_sparam.nodeName.u.wwn, 8); if (fc_vport->node_name != 0) u64_to_wwn(fc_vport->node_name, vport->fc_nodename.u.wwn); if (fc_vport->port_name != 0) u64_to_wwn(fc_vport->port_name, vport->fc_portname.u.wwn); memcpy(&vport->fc_sparam.portName, vport->fc_portname.u.wwn, 8); memcpy(&vport->fc_sparam.nodeName, vport->fc_nodename.u.wwn, 8); if (!lpfc_valid_wwn_format(phba, &vport->fc_sparam.nodeName, "WWNN") || !lpfc_valid_wwn_format(phba, &vport->fc_sparam.portName, "WWPN")) { lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, "1821 Create VPORT failed. " "Invalid WWN format\n"); lpfc_free_vpi(phba, vpi); destroy_port(vport); rc = VPORT_INVAL; goto error_out; } if (!lpfc_unique_wwpn(phba, vport)) { lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, "1823 Create VPORT failed. " "Duplicate WWN on HBA\n"); lpfc_free_vpi(phba, vpi); destroy_port(vport); rc = VPORT_INVAL; goto error_out; } *(struct lpfc_vport **)fc_vport->dd_data = vport; vport->fc_vport = fc_vport; if ((phba->link_state < LPFC_LINK_UP) || (phba->fc_topology == TOPOLOGY_LOOP)) { lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); rc = VPORT_OK; goto out; } if (disable) { rc = VPORT_OK; goto out; } /* Use the Physical nodes Fabric NDLP to determine if the link is * up and ready to FDISC. */ ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); if (ndlp && NLP_CHK_NODE_ACT(ndlp) && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) { lpfc_set_disctmo(vport); lpfc_initial_fdisc(vport); } else { lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0262 No NPIV Fabric support\n"); } } else { lpfc_vport_set_state(vport, FC_VPORT_FAILED); } rc = VPORT_OK; out: lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, "1825 Vport Created.\n"); lpfc_host_attrib_init(lpfc_shost_from_vport(vport)); error_out: return rc; } static int disable_vport(struct fc_vport *fc_vport) { struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; struct lpfc_hba *phba = vport->phba; struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; long timeout; ndlp = lpfc_findnode_did(vport, Fabric_DID); if (ndlp && NLP_CHK_NODE_ACT(ndlp) && phba->link_state >= LPFC_LINK_UP) { vport->unreg_vpi_cmpl = VPORT_INVAL; timeout = msecs_to_jiffies(phba->fc_ratov * 2000); if (!lpfc_issue_els_npiv_logo(vport, ndlp)) while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout) timeout = schedule_timeout(timeout); } lpfc_sli_host_down(vport); /* Mark all nodes for discovery so we can remove them by * calling lpfc_cleanup_rpis(vport, 1) */ list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { if (!NLP_CHK_NODE_ACT(ndlp)) continue; if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) continue; lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RECOVERY); } lpfc_cleanup_rpis(vport, 1); lpfc_stop_vport_timers(vport); lpfc_unreg_all_rpis(vport); lpfc_unreg_default_rpis(vport); /* * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) does the * scsi_host_put() to release the vport. */ lpfc_mbx_unreg_vpi(vport); lpfc_vport_set_state(vport, FC_VPORT_DISABLED); lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, "1826 Vport Disabled.\n"); return VPORT_OK; } static int enable_vport(struct fc_vport *fc_vport) { struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; struct lpfc_hba *phba = vport->phba; struct lpfc_nodelist *ndlp = NULL; if ((phba->link_state < LPFC_LINK_UP) || (phba->fc_topology == TOPOLOGY_LOOP)) { lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); return VPORT_OK; } vport->load_flag |= FC_LOADING; vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; /* Use the Physical nodes Fabric NDLP to determine if the link is * up and ready to FDISC. */ ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); if (ndlp && NLP_CHK_NODE_ACT(ndlp) && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) { lpfc_set_disctmo(vport); lpfc_initial_fdisc(vport); } else { lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0264 No NPIV Fabric support\n"); } } else { lpfc_vport_set_state(vport, FC_VPORT_FAILED); } lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, "1827 Vport Enabled.\n"); return VPORT_OK; } int lpfc_vport_disable(struct fc_vport *fc_vport, bool disable) { if (disable) return disable_vport(fc_vport); else return enable_vport(fc_vport); } int lpfc_vport_delete(struct fc_vport *fc_vport) { struct lpfc_nodelist *ndlp = NULL; struct Scsi_Host *shost = (struct Scsi_Host *) fc_vport->shost; struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; struct lpfc_hba *phba = vport->phba; long timeout; if (vport->port_type == LPFC_PHYSICAL_PORT) { lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, "1812 vport_delete failed: Cannot delete " "physical host\n"); return VPORT_ERROR; } /* * If we are not unloading the driver then prevent the vport_delete * from happening until after this vport's discovery is finished. */ if (!(phba->pport->load_flag & FC_UNLOADING)) { int check_count = 0; while (check_count < ((phba->fc_ratov * 3) + 3) && vport->port_state > LPFC_VPORT_FAILED && vport->port_state < LPFC_VPORT_READY) { check_count++; msleep(1000); } if (vport->port_state > LPFC_VPORT_FAILED && vport->port_state < LPFC_VPORT_READY) return -EAGAIN; } /* * This is a bit of a mess. We want to ensure the shost doesn't get * torn down until we're done with the embedded lpfc_vport structure. * * Beyond holding a reference for this function, we also need a * reference for outstanding I/O requests we schedule during delete * processing. But once we scsi_remove_host() we can no longer obtain * a reference through scsi_host_get(). * * So we take two references here. We release one reference at the * bottom of the function -- after delinking the vport. And we * release the other at the completion of the unreg_vpi that get's * initiated after we've disposed of all other resources associated * with the port. */ if (!scsi_host_get(shost) || !scsi_host_get(shost)) return VPORT_INVAL; spin_lock_irq(&phba->hbalock); vport->load_flag |= FC_UNLOADING; spin_unlock_irq(&phba->hbalock); kfree(vport->vname); lpfc_debugfs_terminate(vport); fc_remove_host(lpfc_shost_from_vport(vport)); scsi_remove_host(lpfc_shost_from_vport(vport)); ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); /* In case of driver unload, we shall not perform fabric logo as the * worker thread already stopped at this stage and, in this case, we * can safely skip the fabric logo. */ if (phba->pport->load_flag & FC_UNLOADING) { if (ndlp && NLP_CHK_NODE_ACT(ndlp) && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE && phba->link_state >= LPFC_LINK_UP) { /* First look for the Fabric ndlp */ ndlp = lpfc_findnode_did(vport, Fabric_DID); if (!ndlp) goto skip_logo; else if (!NLP_CHK_NODE_ACT(ndlp)) { ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); if (!ndlp) goto skip_logo; } /* Remove ndlp from vport npld list */ lpfc_dequeue_node(vport, ndlp); /* Indicate free memory when release */ spin_lock_irq(&phba->ndlp_lock); NLP_SET_FREE_REQ(ndlp); spin_unlock_irq(&phba->ndlp_lock); /* Kick off release ndlp when it can be safely done */ lpfc_nlp_put(ndlp); } goto skip_logo; } /* Otherwise, we will perform fabric logo as needed */ if (ndlp && NLP_CHK_NODE_ACT(ndlp) && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE && phba->link_state >= LPFC_LINK_UP && phba->fc_topology != TOPOLOGY_LOOP) { if (vport->cfg_enable_da_id) { timeout = msecs_to_jiffies(phba->fc_ratov * 2000); if (!lpfc_ns_cmd(vport, SLI_CTNS_DA_ID, 0, 0)) while (vport->ct_flags && timeout) timeout = schedule_timeout(timeout); else lpfc_printf_log(vport->phba, KERN_WARNING, LOG_VPORT, "1829 CT command failed to " "delete objects on fabric. \n"); } /* First look for the Fabric ndlp */ ndlp = lpfc_findnode_did(vport, Fabric_DID); if (!ndlp) { /* Cannot find existing Fabric ndlp, allocate one */ ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); if (!ndlp) goto skip_logo; lpfc_nlp_init(vport, ndlp, Fabric_DID); /* Indicate free memory when release */ NLP_SET_FREE_REQ(ndlp); } else { if (!NLP_CHK_NODE_ACT(ndlp)) ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); if (!ndlp) goto skip_logo; /* Remove ndlp from vport npld list */ lpfc_dequeue_node(vport, ndlp); spin_lock_irq(&phba->ndlp_lock); if (!NLP_CHK_FREE_REQ(ndlp)) /* Indicate free memory when release */ NLP_SET_FREE_REQ(ndlp); else { /* Skip this if ndlp is already in free mode */ spin_unlock_irq(&phba->ndlp_lock); goto skip_logo; } spin_unlock_irq(&phba->ndlp_lock); } vport->unreg_vpi_cmpl = VPORT_INVAL; timeout = msecs_to_jiffies(phba->fc_ratov * 2000); if (!lpfc_issue_els_npiv_logo(vport, ndlp)) while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout) timeout = schedule_timeout(timeout); } skip_logo: lpfc_cleanup(vport); lpfc_sli_host_down(vport); lpfc_stop_vport_timers(vport); if (!(phba->pport->load_flag & FC_UNLOADING)) { lpfc_unreg_all_rpis(vport); lpfc_unreg_default_rpis(vport); /* * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) * does the scsi_host_put() to release the vport. */ lpfc_mbx_unreg_vpi(vport); } lpfc_free_vpi(phba, vport->vpi); vport->work_port_events = 0; spin_lock_irq(&phba->hbalock); list_del_init(&vport->listentry); spin_unlock_irq(&phba->hbalock); lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, "1828 Vport Deleted.\n"); scsi_host_put(shost); return VPORT_OK; } struct lpfc_vport ** lpfc_create_vport_work_array(struct lpfc_hba *phba) { struct lpfc_vport *port_iterator; struct lpfc_vport **vports; int index = 0; vports = kzalloc((phba->max_vpi + 1) * sizeof(struct lpfc_vport *), GFP_KERNEL); if (vports == NULL) return NULL; spin_lock_irq(&phba->hbalock); list_for_each_entry(port_iterator, &phba->port_list, listentry) { if (!scsi_host_get(lpfc_shost_from_vport(port_iterator))) { lpfc_printf_vlog(port_iterator, KERN_WARNING, LOG_VPORT, "1801 Create vport work array FAILED: " "cannot do scsi_host_get\n"); continue; } vports[index++] = port_iterator; } spin_unlock_irq(&phba->hbalock); return vports; } void lpfc_destroy_vport_work_array(struct lpfc_hba *phba, struct lpfc_vport **vports) { int i; if (vports == NULL) return; for (i=0; vports[i] != NULL && i <= phba->max_vpi; i++) scsi_host_put(lpfc_shost_from_vport(vports[i])); kfree(vports); } |