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FreeBSD/Linux Kernel Cross Reference
sys/compat/ndis/kern_ndis.c
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1 /*- 2 * Copyright (c) 2003 3 * Bill Paul <wpaul@windriver.com>. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Bill Paul. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30 * THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD: releng/10.4/sys/compat/ndis/kern_ndis.c 273736 2014-10-27 14:38:00Z hselasky $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/unistd.h> 39 #include <sys/types.h> 40 #include <sys/errno.h> 41 #include <sys/callout.h> 42 #include <sys/socket.h> 43 #include <sys/queue.h> 44 #include <sys/sysctl.h> 45 #include <sys/proc.h> 46 #include <sys/malloc.h> 47 #include <sys/lock.h> 48 #include <sys/mutex.h> 49 #include <sys/conf.h> 50 51 #include <sys/kernel.h> 52 #include <sys/module.h> 53 #include <sys/kthread.h> 54 #include <machine/bus.h> 55 #include <machine/resource.h> 56 #include <sys/bus.h> 57 #include <sys/rman.h> 58 59 #include <net/if.h> 60 #include <net/if_arp.h> 61 #include <net/ethernet.h> 62 #include <net/if_dl.h> 63 #include <net/if_media.h> 64 65 #include <net80211/ieee80211_var.h> 66 #include <net80211/ieee80211_ioctl.h> 67 68 #include <dev/usb/usb.h> 69 #include <dev/usb/usbdi.h> 70 71 #include <compat/ndis/pe_var.h> 72 #include <compat/ndis/cfg_var.h> 73 #include <compat/ndis/resource_var.h> 74 #include <compat/ndis/ntoskrnl_var.h> 75 #include <compat/ndis/ndis_var.h> 76 #include <compat/ndis/hal_var.h> 77 #include <compat/ndis/usbd_var.h> 78 #include <dev/if_ndis/if_ndisvar.h> 79 80 #define NDIS_DUMMY_PATH "\\\\some\\bogus\\path" 81 #define NDIS_FLAG_RDONLY 1 82 83 static void ndis_status_func(ndis_handle, ndis_status, void *, uint32_t); 84 static void ndis_statusdone_func(ndis_handle); 85 static void ndis_setdone_func(ndis_handle, ndis_status); 86 static void ndis_getdone_func(ndis_handle, ndis_status); 87 static void ndis_resetdone_func(ndis_handle, ndis_status, uint8_t); 88 static void ndis_sendrsrcavail_func(ndis_handle); 89 static void ndis_intrsetup(kdpc *, device_object *, 90 irp *, struct ndis_softc *); 91 static void ndis_return(device_object *, void *); 92 93 static image_patch_table kernndis_functbl[] = { 94 IMPORT_SFUNC(ndis_status_func, 4), 95 IMPORT_SFUNC(ndis_statusdone_func, 1), 96 IMPORT_SFUNC(ndis_setdone_func, 2), 97 IMPORT_SFUNC(ndis_getdone_func, 2), 98 IMPORT_SFUNC(ndis_resetdone_func, 3), 99 IMPORT_SFUNC(ndis_sendrsrcavail_func, 1), 100 IMPORT_SFUNC(ndis_intrsetup, 4), 101 IMPORT_SFUNC(ndis_return, 1), 102 103 { NULL, NULL, NULL } 104 }; 105 106 static struct nd_head ndis_devhead; 107 108 /* 109 * This allows us to export our symbols to other modules. 110 * Note that we call ourselves 'ndisapi' to avoid a namespace 111 * collision with if_ndis.ko, which internally calls itself 112 * 'ndis.' 113 * 114 * Note: some of the subsystems depend on each other, so the 115 * order in which they're started is important. The order of 116 * importance is: 117 * 118 * HAL - spinlocks and IRQL manipulation 119 * ntoskrnl - DPC and workitem threads, object waiting 120 * windrv - driver/device registration 121 * 122 * The HAL should also be the last thing shut down, since 123 * the ntoskrnl subsystem will use spinlocks right up until 124 * the DPC and workitem threads are terminated. 125 */ 126 127 static int 128 ndis_modevent(module_t mod, int cmd, void *arg) 129 { 130 int error = 0; 131 image_patch_table *patch; 132 133 switch (cmd) { 134 case MOD_LOAD: 135 /* Initialize subsystems */ 136 hal_libinit(); 137 ntoskrnl_libinit(); 138 windrv_libinit(); 139 ndis_libinit(); 140 usbd_libinit(); 141 142 patch = kernndis_functbl; 143 while (patch->ipt_func != NULL) { 144 windrv_wrap((funcptr)patch->ipt_func, 145 (funcptr *)&patch->ipt_wrap, 146 patch->ipt_argcnt, patch->ipt_ftype); 147 patch++; 148 } 149 150 TAILQ_INIT(&ndis_devhead); 151 break; 152 case MOD_SHUTDOWN: 153 if (TAILQ_FIRST(&ndis_devhead) == NULL) { 154 /* Shut down subsystems */ 155 ndis_libfini(); 156 usbd_libfini(); 157 windrv_libfini(); 158 ntoskrnl_libfini(); 159 hal_libfini(); 160 161 patch = kernndis_functbl; 162 while (patch->ipt_func != NULL) { 163 windrv_unwrap(patch->ipt_wrap); 164 patch++; 165 } 166 } 167 break; 168 case MOD_UNLOAD: 169 /* Shut down subsystems */ 170 ndis_libfini(); 171 usbd_libfini(); 172 windrv_libfini(); 173 ntoskrnl_libfini(); 174 hal_libfini(); 175 176 patch = kernndis_functbl; 177 while (patch->ipt_func != NULL) { 178 windrv_unwrap(patch->ipt_wrap); 179 patch++; 180 } 181 182 break; 183 default: 184 error = EINVAL; 185 break; 186 } 187 188 return (error); 189 } 190 DEV_MODULE(ndisapi, ndis_modevent, NULL); 191 MODULE_VERSION(ndisapi, 1); 192 193 static void 194 ndis_sendrsrcavail_func(adapter) 195 ndis_handle adapter; 196 { 197 } 198 199 static void 200 ndis_status_func(adapter, status, sbuf, slen) 201 ndis_handle adapter; 202 ndis_status status; 203 void *sbuf; 204 uint32_t slen; 205 { 206 ndis_miniport_block *block; 207 struct ndis_softc *sc; 208 struct ifnet *ifp; 209 210 block = adapter; 211 sc = device_get_softc(block->nmb_physdeviceobj->do_devext); 212 ifp = sc->ifp; 213 if (ifp->if_flags & IFF_DEBUG) 214 device_printf(sc->ndis_dev, "status: %x\n", status); 215 } 216 217 static void 218 ndis_statusdone_func(adapter) 219 ndis_handle adapter; 220 { 221 ndis_miniport_block *block; 222 struct ndis_softc *sc; 223 struct ifnet *ifp; 224 225 block = adapter; 226 sc = device_get_softc(block->nmb_physdeviceobj->do_devext); 227 ifp = sc->ifp; 228 if (ifp->if_flags & IFF_DEBUG) 229 device_printf(sc->ndis_dev, "status complete\n"); 230 } 231 232 static void 233 ndis_setdone_func(adapter, status) 234 ndis_handle adapter; 235 ndis_status status; 236 { 237 ndis_miniport_block *block; 238 block = adapter; 239 240 block->nmb_setstat = status; 241 KeSetEvent(&block->nmb_setevent, IO_NO_INCREMENT, FALSE); 242 } 243 244 static void 245 ndis_getdone_func(adapter, status) 246 ndis_handle adapter; 247 ndis_status status; 248 { 249 ndis_miniport_block *block; 250 block = adapter; 251 252 block->nmb_getstat = status; 253 KeSetEvent(&block->nmb_getevent, IO_NO_INCREMENT, FALSE); 254 } 255 256 static void 257 ndis_resetdone_func(ndis_handle adapter, ndis_status status, 258 uint8_t addressingreset) 259 { 260 ndis_miniport_block *block; 261 struct ndis_softc *sc; 262 struct ifnet *ifp; 263 264 block = adapter; 265 sc = device_get_softc(block->nmb_physdeviceobj->do_devext); 266 ifp = sc->ifp; 267 268 if (ifp->if_flags & IFF_DEBUG) 269 device_printf(sc->ndis_dev, "reset done...\n"); 270 KeSetEvent(&block->nmb_resetevent, IO_NO_INCREMENT, FALSE); 271 } 272 273 int 274 ndis_create_sysctls(arg) 275 void *arg; 276 { 277 struct ndis_softc *sc; 278 ndis_cfg *vals; 279 char buf[256]; 280 struct sysctl_oid *oidp; 281 struct sysctl_ctx_entry *e; 282 283 if (arg == NULL) 284 return (EINVAL); 285 286 sc = arg; 287 vals = sc->ndis_regvals; 288 289 TAILQ_INIT(&sc->ndis_cfglist_head); 290 291 /* Add the driver-specific registry keys. */ 292 293 while(1) { 294 if (vals->nc_cfgkey == NULL) 295 break; 296 297 if (vals->nc_idx != sc->ndis_devidx) { 298 vals++; 299 continue; 300 } 301 302 /* See if we already have a sysctl with this name */ 303 304 oidp = NULL; 305 TAILQ_FOREACH(e, device_get_sysctl_ctx(sc->ndis_dev), link) { 306 oidp = e->entry; 307 if (strcasecmp(oidp->oid_name, vals->nc_cfgkey) == 0) 308 break; 309 oidp = NULL; 310 } 311 312 if (oidp != NULL) { 313 vals++; 314 continue; 315 } 316 317 ndis_add_sysctl(sc, vals->nc_cfgkey, vals->nc_cfgdesc, 318 vals->nc_val, CTLFLAG_RW); 319 vals++; 320 } 321 322 /* Now add a couple of builtin keys. */ 323 324 /* 325 * Environment can be either Windows (0) or WindowsNT (1). 326 * We qualify as the latter. 327 */ 328 ndis_add_sysctl(sc, "Environment", 329 "Windows environment", "1", NDIS_FLAG_RDONLY); 330 331 /* NDIS version should be 5.1. */ 332 ndis_add_sysctl(sc, "NdisVersion", 333 "NDIS API Version", "0x00050001", NDIS_FLAG_RDONLY); 334 335 /* 336 * Some miniport drivers rely on the existence of the SlotNumber, 337 * NetCfgInstanceId and DriverDesc keys. 338 */ 339 ndis_add_sysctl(sc, "SlotNumber", "Slot Numer", "01", NDIS_FLAG_RDONLY); 340 ndis_add_sysctl(sc, "NetCfgInstanceId", "NetCfgInstanceId", 341 "{12345678-1234-5678-CAFE0-123456789ABC}", NDIS_FLAG_RDONLY); 342 ndis_add_sysctl(sc, "DriverDesc", "Driver Description", 343 "NDIS Network Adapter", NDIS_FLAG_RDONLY); 344 345 /* Bus type (PCI, PCMCIA, etc...) */ 346 sprintf(buf, "%d", (int)sc->ndis_iftype); 347 ndis_add_sysctl(sc, "BusType", "Bus Type", buf, NDIS_FLAG_RDONLY); 348 349 if (sc->ndis_res_io != NULL) { 350 sprintf(buf, "0x%lx", rman_get_start(sc->ndis_res_io)); 351 ndis_add_sysctl(sc, "IOBaseAddress", 352 "Base I/O Address", buf, NDIS_FLAG_RDONLY); 353 } 354 355 if (sc->ndis_irq != NULL) { 356 sprintf(buf, "%lu", rman_get_start(sc->ndis_irq)); 357 ndis_add_sysctl(sc, "InterruptNumber", 358 "Interrupt Number", buf, NDIS_FLAG_RDONLY); 359 } 360 361 return (0); 362 } 363 364 int 365 ndis_add_sysctl(arg, key, desc, val, flag_rdonly) 366 void *arg; 367 char *key; 368 char *desc; 369 char *val; 370 int flag_rdonly; 371 { 372 struct ndis_softc *sc; 373 struct ndis_cfglist *cfg; 374 char descstr[256]; 375 376 sc = arg; 377 378 cfg = malloc(sizeof(struct ndis_cfglist), M_DEVBUF, M_NOWAIT|M_ZERO); 379 380 if (cfg == NULL) { 381 printf("failed for %s\n", key); 382 return (ENOMEM); 383 } 384 385 cfg->ndis_cfg.nc_cfgkey = strdup(key, M_DEVBUF); 386 if (desc == NULL) { 387 snprintf(descstr, sizeof(descstr), "%s (dynamic)", key); 388 cfg->ndis_cfg.nc_cfgdesc = strdup(descstr, M_DEVBUF); 389 } else 390 cfg->ndis_cfg.nc_cfgdesc = strdup(desc, M_DEVBUF); 391 strcpy(cfg->ndis_cfg.nc_val, val); 392 393 TAILQ_INSERT_TAIL(&sc->ndis_cfglist_head, cfg, link); 394 395 if (flag_rdonly != 0) { 396 cfg->ndis_oid = 397 SYSCTL_ADD_STRING(device_get_sysctl_ctx(sc->ndis_dev), 398 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ndis_dev)), 399 OID_AUTO, cfg->ndis_cfg.nc_cfgkey, CTLFLAG_RD, 400 cfg->ndis_cfg.nc_val, sizeof(cfg->ndis_cfg.nc_val), 401 cfg->ndis_cfg.nc_cfgdesc); 402 } else { 403 cfg->ndis_oid = 404 SYSCTL_ADD_STRING(device_get_sysctl_ctx(sc->ndis_dev), 405 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ndis_dev)), 406 OID_AUTO, cfg->ndis_cfg.nc_cfgkey, CTLFLAG_RW, 407 cfg->ndis_cfg.nc_val, sizeof(cfg->ndis_cfg.nc_val), 408 cfg->ndis_cfg.nc_cfgdesc); 409 } 410 return (0); 411 } 412 413 /* 414 * Somewhere, somebody decided "hey, let's automatically create 415 * a sysctl tree for each device instance as it's created -- it'll 416 * make life so much easier!" Lies. Why must they turn the kernel 417 * into a house of lies? 418 */ 419 420 int 421 ndis_flush_sysctls(arg) 422 void *arg; 423 { 424 struct ndis_softc *sc; 425 struct ndis_cfglist *cfg; 426 struct sysctl_ctx_list *clist; 427 428 sc = arg; 429 430 clist = device_get_sysctl_ctx(sc->ndis_dev); 431 432 while (!TAILQ_EMPTY(&sc->ndis_cfglist_head)) { 433 cfg = TAILQ_FIRST(&sc->ndis_cfglist_head); 434 TAILQ_REMOVE(&sc->ndis_cfglist_head, cfg, link); 435 sysctl_ctx_entry_del(clist, cfg->ndis_oid); 436 sysctl_remove_oid(cfg->ndis_oid, 1, 0); 437 free(cfg->ndis_cfg.nc_cfgkey, M_DEVBUF); 438 free(cfg->ndis_cfg.nc_cfgdesc, M_DEVBUF); 439 free(cfg, M_DEVBUF); 440 } 441 442 return (0); 443 } 444 445 void * 446 ndis_get_routine_address(functbl, name) 447 struct image_patch_table *functbl; 448 char *name; 449 { 450 int i; 451 452 for (i = 0; functbl[i].ipt_name != NULL; i++) 453 if (strcmp(name, functbl[i].ipt_name) == 0) 454 return (functbl[i].ipt_wrap); 455 return (NULL); 456 } 457 458 static void 459 ndis_return(dobj, arg) 460 device_object *dobj; 461 void *arg; 462 { 463 ndis_miniport_block *block; 464 ndis_miniport_characteristics *ch; 465 ndis_return_handler returnfunc; 466 ndis_handle adapter; 467 ndis_packet *p; 468 uint8_t irql; 469 list_entry *l; 470 471 block = arg; 472 ch = IoGetDriverObjectExtension(dobj->do_drvobj, (void *)1); 473 474 p = arg; 475 adapter = block->nmb_miniportadapterctx; 476 477 if (adapter == NULL) 478 return; 479 480 returnfunc = ch->nmc_return_packet_func; 481 482 KeAcquireSpinLock(&block->nmb_returnlock, &irql); 483 while (!IsListEmpty(&block->nmb_returnlist)) { 484 l = RemoveHeadList((&block->nmb_returnlist)); 485 p = CONTAINING_RECORD(l, ndis_packet, np_list); 486 InitializeListHead((&p->np_list)); 487 KeReleaseSpinLock(&block->nmb_returnlock, irql); 488 MSCALL2(returnfunc, adapter, p); 489 KeAcquireSpinLock(&block->nmb_returnlock, &irql); 490 } 491 KeReleaseSpinLock(&block->nmb_returnlock, irql); 492 } 493 494 int 495 ndis_return_packet(struct mbuf *m, void *buf, void *arg) 496 { 497 ndis_packet *p; 498 ndis_miniport_block *block; 499 500 if (arg == NULL) 501 return (EXT_FREE_OK); 502 503 p = arg; 504 505 /* Decrement refcount. */ 506 p->np_refcnt--; 507 508 /* Release packet when refcount hits zero, otherwise return. */ 509 if (p->np_refcnt) 510 return (EXT_FREE_OK); 511 512 block = ((struct ndis_softc *)p->np_softc)->ndis_block; 513 514 KeAcquireSpinLockAtDpcLevel(&block->nmb_returnlock); 515 InitializeListHead((&p->np_list)); 516 InsertHeadList((&block->nmb_returnlist), (&p->np_list)); 517 KeReleaseSpinLockFromDpcLevel(&block->nmb_returnlock); 518 519 IoQueueWorkItem(block->nmb_returnitem, 520 (io_workitem_func)kernndis_functbl[7].ipt_wrap, 521 WORKQUEUE_CRITICAL, block); 522 523 return (EXT_FREE_OK); 524 } 525 526 void 527 ndis_free_bufs(b0) 528 ndis_buffer *b0; 529 { 530 ndis_buffer *next; 531 532 if (b0 == NULL) 533 return; 534 535 while(b0 != NULL) { 536 next = b0->mdl_next; 537 IoFreeMdl(b0); 538 b0 = next; 539 } 540 } 541 542 void 543 ndis_free_packet(p) 544 ndis_packet *p; 545 { 546 if (p == NULL) 547 return; 548 549 ndis_free_bufs(p->np_private.npp_head); 550 NdisFreePacket(p); 551 } 552 553 int 554 ndis_convert_res(arg) 555 void *arg; 556 { 557 struct ndis_softc *sc; 558 ndis_resource_list *rl = NULL; 559 cm_partial_resource_desc *prd = NULL; 560 ndis_miniport_block *block; 561 device_t dev; 562 struct resource_list *brl; 563 struct resource_list_entry *brle; 564 int error = 0; 565 566 sc = arg; 567 block = sc->ndis_block; 568 dev = sc->ndis_dev; 569 570 rl = malloc(sizeof(ndis_resource_list) + 571 (sizeof(cm_partial_resource_desc) * (sc->ndis_rescnt - 1)), 572 M_DEVBUF, M_NOWAIT|M_ZERO); 573 574 if (rl == NULL) 575 return (ENOMEM); 576 577 rl->cprl_version = 5; 578 rl->cprl_revision = 1; 579 rl->cprl_count = sc->ndis_rescnt; 580 prd = rl->cprl_partial_descs; 581 582 brl = BUS_GET_RESOURCE_LIST(dev, dev); 583 584 if (brl != NULL) { 585 586 STAILQ_FOREACH(brle, brl, link) { 587 switch (brle->type) { 588 case SYS_RES_IOPORT: 589 prd->cprd_type = CmResourceTypePort; 590 prd->cprd_flags = CM_RESOURCE_PORT_IO; 591 prd->cprd_sharedisp = 592 CmResourceShareDeviceExclusive; 593 prd->u.cprd_port.cprd_start.np_quad = 594 brle->start; 595 prd->u.cprd_port.cprd_len = brle->count; 596 break; 597 case SYS_RES_MEMORY: 598 prd->cprd_type = CmResourceTypeMemory; 599 prd->cprd_flags = 600 CM_RESOURCE_MEMORY_READ_WRITE; 601 prd->cprd_sharedisp = 602 CmResourceShareDeviceExclusive; 603 prd->u.cprd_mem.cprd_start.np_quad = 604 brle->start; 605 prd->u.cprd_mem.cprd_len = brle->count; 606 break; 607 case SYS_RES_IRQ: 608 prd->cprd_type = CmResourceTypeInterrupt; 609 prd->cprd_flags = 0; 610 /* 611 * Always mark interrupt resources as 612 * shared, since in our implementation, 613 * they will be. 614 */ 615 prd->cprd_sharedisp = 616 CmResourceShareShared; 617 prd->u.cprd_intr.cprd_level = brle->start; 618 prd->u.cprd_intr.cprd_vector = brle->start; 619 prd->u.cprd_intr.cprd_affinity = 0; 620 break; 621 default: 622 break; 623 } 624 prd++; 625 } 626 } 627 628 block->nmb_rlist = rl; 629 630 return (error); 631 } 632 633 /* 634 * Map an NDIS packet to an mbuf list. When an NDIS driver receives a 635 * packet, it will hand it to us in the form of an ndis_packet, 636 * which we need to convert to an mbuf that is then handed off 637 * to the stack. Note: we configure the mbuf list so that it uses 638 * the memory regions specified by the ndis_buffer structures in 639 * the ndis_packet as external storage. In most cases, this will 640 * point to a memory region allocated by the driver (either by 641 * ndis_malloc_withtag() or ndis_alloc_sharedmem()). We expect 642 * the driver to handle free()ing this region for is, so we set up 643 * a dummy no-op free handler for it. 644 */ 645 646 int 647 ndis_ptom(m0, p) 648 struct mbuf **m0; 649 ndis_packet *p; 650 { 651 struct mbuf *m = NULL, *prev = NULL; 652 ndis_buffer *buf; 653 ndis_packet_private *priv; 654 uint32_t totlen = 0; 655 struct ifnet *ifp; 656 struct ether_header *eh; 657 int diff; 658 659 if (p == NULL || m0 == NULL) 660 return (EINVAL); 661 662 priv = &p->np_private; 663 buf = priv->npp_head; 664 p->np_refcnt = 0; 665 666 for (buf = priv->npp_head; buf != NULL; buf = buf->mdl_next) { 667 if (buf == priv->npp_head) 668 m = m_gethdr(M_NOWAIT, MT_DATA); 669 else 670 m = m_get(M_NOWAIT, MT_DATA); 671 if (m == NULL) { 672 m_freem(*m0); 673 *m0 = NULL; 674 return (ENOBUFS); 675 } 676 m->m_len = MmGetMdlByteCount(buf); 677 m->m_data = MmGetMdlVirtualAddress(buf); 678 MEXTADD(m, m->m_data, m->m_len, ndis_return_packet, 679 m->m_data, p, 0, EXT_NDIS); 680 p->np_refcnt++; 681 682 totlen += m->m_len; 683 if (m->m_flags & M_PKTHDR) 684 *m0 = m; 685 else 686 prev->m_next = m; 687 prev = m; 688 } 689 690 /* 691 * This is a hack to deal with the Marvell 8335 driver 692 * which, when associated with an AP in WPA-PSK mode, 693 * seems to overpad its frames by 8 bytes. I don't know 694 * that the extra 8 bytes are for, and they're not there 695 * in open mode, so for now clamp the frame size at 1514 696 * until I can figure out how to deal with this properly, 697 * otherwise if_ethersubr() will spank us by discarding 698 * the 'oversize' frames. 699 */ 700 701 eh = mtod((*m0), struct ether_header *); 702 ifp = ((struct ndis_softc *)p->np_softc)->ifp; 703 if (totlen > ETHER_MAX_FRAME(ifp, eh->ether_type, FALSE)) { 704 diff = totlen - ETHER_MAX_FRAME(ifp, eh->ether_type, FALSE); 705 totlen -= diff; 706 m->m_len -= diff; 707 } 708 (*m0)->m_pkthdr.len = totlen; 709 710 return (0); 711 } 712 713 /* 714 * Create an NDIS packet from an mbuf chain. 715 * This is used mainly when transmitting packets, where we need 716 * to turn an mbuf off an interface's send queue and transform it 717 * into an NDIS packet which will be fed into the NDIS driver's 718 * send routine. 719 * 720 * NDIS packets consist of two parts: an ndis_packet structure, 721 * which is vaguely analagous to the pkthdr portion of an mbuf, 722 * and one or more ndis_buffer structures, which define the 723 * actual memory segments in which the packet data resides. 724 * We need to allocate one ndis_buffer for each mbuf in a chain, 725 * plus one ndis_packet as the header. 726 */ 727 728 int 729 ndis_mtop(m0, p) 730 struct mbuf *m0; 731 ndis_packet **p; 732 { 733 struct mbuf *m; 734 ndis_buffer *buf = NULL, *prev = NULL; 735 ndis_packet_private *priv; 736 737 if (p == NULL || *p == NULL || m0 == NULL) 738 return (EINVAL); 739 740 priv = &(*p)->np_private; 741 priv->npp_totlen = m0->m_pkthdr.len; 742 743 for (m = m0; m != NULL; m = m->m_next) { 744 if (m->m_len == 0) 745 continue; 746 buf = IoAllocateMdl(m->m_data, m->m_len, FALSE, FALSE, NULL); 747 if (buf == NULL) { 748 ndis_free_packet(*p); 749 *p = NULL; 750 return (ENOMEM); 751 } 752 MmBuildMdlForNonPagedPool(buf); 753 754 if (priv->npp_head == NULL) 755 priv->npp_head = buf; 756 else 757 prev->mdl_next = buf; 758 prev = buf; 759 } 760 761 priv->npp_tail = buf; 762 763 return (0); 764 } 765 766 int 767 ndis_get_supported_oids(arg, oids, oidcnt) 768 void *arg; 769 ndis_oid **oids; 770 int *oidcnt; 771 { 772 int len, rval; 773 ndis_oid *o; 774 775 if (arg == NULL || oids == NULL || oidcnt == NULL) 776 return (EINVAL); 777 len = 0; 778 ndis_get_info(arg, OID_GEN_SUPPORTED_LIST, NULL, &len); 779 780 o = malloc(len, M_DEVBUF, M_NOWAIT); 781 if (o == NULL) 782 return (ENOMEM); 783 784 rval = ndis_get_info(arg, OID_GEN_SUPPORTED_LIST, o, &len); 785 786 if (rval) { 787 free(o, M_DEVBUF); 788 return (rval); 789 } 790 791 *oids = o; 792 *oidcnt = len / 4; 793 794 return (0); 795 } 796 797 int 798 ndis_set_info(arg, oid, buf, buflen) 799 void *arg; 800 ndis_oid oid; 801 void *buf; 802 int *buflen; 803 { 804 struct ndis_softc *sc; 805 ndis_status rval; 806 ndis_handle adapter; 807 ndis_setinfo_handler setfunc; 808 uint32_t byteswritten = 0, bytesneeded = 0; 809 uint8_t irql; 810 uint64_t duetime; 811 812 /* 813 * According to the NDIS spec, MiniportQueryInformation() 814 * and MiniportSetInformation() requests are handled serially: 815 * once one request has been issued, we must wait for it to 816 * finish before allowing another request to proceed. 817 */ 818 819 sc = arg; 820 821 KeResetEvent(&sc->ndis_block->nmb_setevent); 822 823 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 824 825 if (sc->ndis_block->nmb_pendingreq != NULL) { 826 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 827 panic("ndis_set_info() called while other request pending"); 828 } else 829 sc->ndis_block->nmb_pendingreq = (ndis_request *)sc; 830 831 setfunc = sc->ndis_chars->nmc_setinfo_func; 832 adapter = sc->ndis_block->nmb_miniportadapterctx; 833 834 if (adapter == NULL || setfunc == NULL || 835 sc->ndis_block->nmb_devicectx == NULL) { 836 sc->ndis_block->nmb_pendingreq = NULL; 837 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 838 return (ENXIO); 839 } 840 841 rval = MSCALL6(setfunc, adapter, oid, buf, *buflen, 842 &byteswritten, &bytesneeded); 843 844 sc->ndis_block->nmb_pendingreq = NULL; 845 846 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 847 848 if (rval == NDIS_STATUS_PENDING) { 849 /* Wait up to 5 seconds. */ 850 duetime = (5 * 1000000) * -10; 851 KeWaitForSingleObject(&sc->ndis_block->nmb_setevent, 852 0, 0, FALSE, &duetime); 853 rval = sc->ndis_block->nmb_setstat; 854 } 855 856 if (byteswritten) 857 *buflen = byteswritten; 858 if (bytesneeded) 859 *buflen = bytesneeded; 860 861 if (rval == NDIS_STATUS_INVALID_LENGTH) 862 return (ENOSPC); 863 864 if (rval == NDIS_STATUS_INVALID_OID) 865 return (EINVAL); 866 867 if (rval == NDIS_STATUS_NOT_SUPPORTED || 868 rval == NDIS_STATUS_NOT_ACCEPTED) 869 return (ENOTSUP); 870 871 if (rval != NDIS_STATUS_SUCCESS) 872 return (ENODEV); 873 874 return (0); 875 } 876 877 typedef void (*ndis_senddone_func)(ndis_handle, ndis_packet *, ndis_status); 878 879 int 880 ndis_send_packets(arg, packets, cnt) 881 void *arg; 882 ndis_packet **packets; 883 int cnt; 884 { 885 struct ndis_softc *sc; 886 ndis_handle adapter; 887 ndis_sendmulti_handler sendfunc; 888 ndis_senddone_func senddonefunc; 889 int i; 890 ndis_packet *p; 891 uint8_t irql = 0; 892 893 sc = arg; 894 adapter = sc->ndis_block->nmb_miniportadapterctx; 895 if (adapter == NULL) 896 return (ENXIO); 897 sendfunc = sc->ndis_chars->nmc_sendmulti_func; 898 senddonefunc = sc->ndis_block->nmb_senddone_func; 899 900 if (NDIS_SERIALIZED(sc->ndis_block)) 901 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 902 903 MSCALL3(sendfunc, adapter, packets, cnt); 904 905 for (i = 0; i < cnt; i++) { 906 p = packets[i]; 907 /* 908 * Either the driver already handed the packet to 909 * ndis_txeof() due to a failure, or it wants to keep 910 * it and release it asynchronously later. Skip to the 911 * next one. 912 */ 913 if (p == NULL || p->np_oob.npo_status == NDIS_STATUS_PENDING) 914 continue; 915 MSCALL3(senddonefunc, sc->ndis_block, p, p->np_oob.npo_status); 916 } 917 918 if (NDIS_SERIALIZED(sc->ndis_block)) 919 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 920 921 return (0); 922 } 923 924 int 925 ndis_send_packet(arg, packet) 926 void *arg; 927 ndis_packet *packet; 928 { 929 struct ndis_softc *sc; 930 ndis_handle adapter; 931 ndis_status status; 932 ndis_sendsingle_handler sendfunc; 933 ndis_senddone_func senddonefunc; 934 uint8_t irql = 0; 935 936 sc = arg; 937 adapter = sc->ndis_block->nmb_miniportadapterctx; 938 if (adapter == NULL) 939 return (ENXIO); 940 sendfunc = sc->ndis_chars->nmc_sendsingle_func; 941 senddonefunc = sc->ndis_block->nmb_senddone_func; 942 943 if (NDIS_SERIALIZED(sc->ndis_block)) 944 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 945 status = MSCALL3(sendfunc, adapter, packet, 946 packet->np_private.npp_flags); 947 948 if (status == NDIS_STATUS_PENDING) { 949 if (NDIS_SERIALIZED(sc->ndis_block)) 950 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 951 return (0); 952 } 953 954 MSCALL3(senddonefunc, sc->ndis_block, packet, status); 955 956 if (NDIS_SERIALIZED(sc->ndis_block)) 957 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 958 959 return (0); 960 } 961 962 int 963 ndis_init_dma(arg) 964 void *arg; 965 { 966 struct ndis_softc *sc; 967 int i, error; 968 969 sc = arg; 970 971 sc->ndis_tmaps = malloc(sizeof(bus_dmamap_t) * sc->ndis_maxpkts, 972 M_DEVBUF, M_NOWAIT|M_ZERO); 973 974 if (sc->ndis_tmaps == NULL) 975 return (ENOMEM); 976 977 for (i = 0; i < sc->ndis_maxpkts; i++) { 978 error = bus_dmamap_create(sc->ndis_ttag, 0, 979 &sc->ndis_tmaps[i]); 980 if (error) { 981 free(sc->ndis_tmaps, M_DEVBUF); 982 return (ENODEV); 983 } 984 } 985 986 return (0); 987 } 988 989 int 990 ndis_destroy_dma(arg) 991 void *arg; 992 { 993 struct ndis_softc *sc; 994 struct mbuf *m; 995 ndis_packet *p = NULL; 996 int i; 997 998 sc = arg; 999 1000 for (i = 0; i < sc->ndis_maxpkts; i++) { 1001 if (sc->ndis_txarray[i] != NULL) { 1002 p = sc->ndis_txarray[i]; 1003 m = (struct mbuf *)p->np_rsvd[1]; 1004 if (m != NULL) 1005 m_freem(m); 1006 ndis_free_packet(sc->ndis_txarray[i]); 1007 } 1008 bus_dmamap_destroy(sc->ndis_ttag, sc->ndis_tmaps[i]); 1009 } 1010 1011 free(sc->ndis_tmaps, M_DEVBUF); 1012 1013 bus_dma_tag_destroy(sc->ndis_ttag); 1014 1015 return (0); 1016 } 1017 1018 int 1019 ndis_reset_nic(arg) 1020 void *arg; 1021 { 1022 struct ndis_softc *sc; 1023 ndis_handle adapter; 1024 ndis_reset_handler resetfunc; 1025 uint8_t addressing_reset; 1026 int rval; 1027 uint8_t irql = 0; 1028 1029 sc = arg; 1030 1031 NDIS_LOCK(sc); 1032 adapter = sc->ndis_block->nmb_miniportadapterctx; 1033 resetfunc = sc->ndis_chars->nmc_reset_func; 1034 1035 if (adapter == NULL || resetfunc == NULL || 1036 sc->ndis_block->nmb_devicectx == NULL) { 1037 NDIS_UNLOCK(sc); 1038 return (EIO); 1039 } 1040 1041 NDIS_UNLOCK(sc); 1042 1043 KeResetEvent(&sc->ndis_block->nmb_resetevent); 1044 1045 if (NDIS_SERIALIZED(sc->ndis_block)) 1046 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 1047 1048 rval = MSCALL2(resetfunc, &addressing_reset, adapter); 1049 1050 if (NDIS_SERIALIZED(sc->ndis_block)) 1051 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1052 1053 if (rval == NDIS_STATUS_PENDING) 1054 KeWaitForSingleObject(&sc->ndis_block->nmb_resetevent, 1055 0, 0, FALSE, NULL); 1056 1057 return (0); 1058 } 1059 1060 int 1061 ndis_halt_nic(arg) 1062 void *arg; 1063 { 1064 struct ndis_softc *sc; 1065 ndis_handle adapter; 1066 ndis_halt_handler haltfunc; 1067 ndis_miniport_block *block; 1068 int empty = 0; 1069 uint8_t irql; 1070 1071 sc = arg; 1072 block = sc->ndis_block; 1073 1074 if (!cold) 1075 KeFlushQueuedDpcs(); 1076 1077 /* 1078 * Wait for all packets to be returned. 1079 */ 1080 1081 while (1) { 1082 KeAcquireSpinLock(&block->nmb_returnlock, &irql); 1083 empty = IsListEmpty(&block->nmb_returnlist); 1084 KeReleaseSpinLock(&block->nmb_returnlock, irql); 1085 if (empty) 1086 break; 1087 NdisMSleep(1000); 1088 } 1089 1090 NDIS_LOCK(sc); 1091 adapter = sc->ndis_block->nmb_miniportadapterctx; 1092 if (adapter == NULL) { 1093 NDIS_UNLOCK(sc); 1094 return (EIO); 1095 } 1096 1097 sc->ndis_block->nmb_devicectx = NULL; 1098 1099 /* 1100 * The adapter context is only valid after the init 1101 * handler has been called, and is invalid once the 1102 * halt handler has been called. 1103 */ 1104 1105 haltfunc = sc->ndis_chars->nmc_halt_func; 1106 NDIS_UNLOCK(sc); 1107 1108 MSCALL1(haltfunc, adapter); 1109 1110 NDIS_LOCK(sc); 1111 sc->ndis_block->nmb_miniportadapterctx = NULL; 1112 NDIS_UNLOCK(sc); 1113 1114 return (0); 1115 } 1116 1117 int 1118 ndis_shutdown_nic(arg) 1119 void *arg; 1120 { 1121 struct ndis_softc *sc; 1122 ndis_handle adapter; 1123 ndis_shutdown_handler shutdownfunc; 1124 1125 sc = arg; 1126 NDIS_LOCK(sc); 1127 adapter = sc->ndis_block->nmb_miniportadapterctx; 1128 shutdownfunc = sc->ndis_chars->nmc_shutdown_handler; 1129 NDIS_UNLOCK(sc); 1130 if (adapter == NULL || shutdownfunc == NULL) 1131 return (EIO); 1132 1133 if (sc->ndis_chars->nmc_rsvd0 == NULL) 1134 MSCALL1(shutdownfunc, adapter); 1135 else 1136 MSCALL1(shutdownfunc, sc->ndis_chars->nmc_rsvd0); 1137 1138 TAILQ_REMOVE(&ndis_devhead, sc->ndis_block, link); 1139 1140 return (0); 1141 } 1142 1143 int 1144 ndis_pnpevent_nic(arg, type) 1145 void *arg; 1146 int type; 1147 { 1148 device_t dev; 1149 struct ndis_softc *sc; 1150 ndis_handle adapter; 1151 ndis_pnpevent_handler pnpeventfunc; 1152 1153 dev = arg; 1154 sc = device_get_softc(arg); 1155 NDIS_LOCK(sc); 1156 adapter = sc->ndis_block->nmb_miniportadapterctx; 1157 pnpeventfunc = sc->ndis_chars->nmc_pnpevent_handler; 1158 NDIS_UNLOCK(sc); 1159 if (adapter == NULL || pnpeventfunc == NULL) 1160 return (EIO); 1161 1162 if (sc->ndis_chars->nmc_rsvd0 == NULL) 1163 MSCALL4(pnpeventfunc, adapter, type, NULL, 0); 1164 else 1165 MSCALL4(pnpeventfunc, sc->ndis_chars->nmc_rsvd0, type, NULL, 0); 1166 1167 return (0); 1168 } 1169 1170 int 1171 ndis_init_nic(arg) 1172 void *arg; 1173 { 1174 struct ndis_softc *sc; 1175 ndis_miniport_block *block; 1176 ndis_init_handler initfunc; 1177 ndis_status status, openstatus = 0; 1178 ndis_medium mediumarray[NdisMediumMax]; 1179 uint32_t chosenmedium, i; 1180 1181 if (arg == NULL) 1182 return (EINVAL); 1183 1184 sc = arg; 1185 NDIS_LOCK(sc); 1186 block = sc->ndis_block; 1187 initfunc = sc->ndis_chars->nmc_init_func; 1188 NDIS_UNLOCK(sc); 1189 1190 sc->ndis_block->nmb_timerlist = NULL; 1191 1192 for (i = 0; i < NdisMediumMax; i++) 1193 mediumarray[i] = i; 1194 1195 status = MSCALL6(initfunc, &openstatus, &chosenmedium, 1196 mediumarray, NdisMediumMax, block, block); 1197 1198 /* 1199 * If the init fails, blow away the other exported routines 1200 * we obtained from the driver so we can't call them later. 1201 * If the init failed, none of these will work. 1202 */ 1203 if (status != NDIS_STATUS_SUCCESS) { 1204 NDIS_LOCK(sc); 1205 sc->ndis_block->nmb_miniportadapterctx = NULL; 1206 NDIS_UNLOCK(sc); 1207 return (ENXIO); 1208 } 1209 1210 /* 1211 * This may look really goofy, but apparently it is possible 1212 * to halt a miniport too soon after it's been initialized. 1213 * After MiniportInitialize() finishes, pause for 1 second 1214 * to give the chip a chance to handle any short-lived timers 1215 * that were set in motion. If we call MiniportHalt() too soon, 1216 * some of the timers may not be cancelled, because the driver 1217 * expects them to fire before the halt is called. 1218 */ 1219 1220 pause("ndwait", hz); 1221 1222 NDIS_LOCK(sc); 1223 sc->ndis_block->nmb_devicectx = sc; 1224 NDIS_UNLOCK(sc); 1225 1226 return (0); 1227 } 1228 1229 static void 1230 ndis_intrsetup(dpc, dobj, ip, sc) 1231 kdpc *dpc; 1232 device_object *dobj; 1233 irp *ip; 1234 struct ndis_softc *sc; 1235 { 1236 ndis_miniport_interrupt *intr; 1237 1238 intr = sc->ndis_block->nmb_interrupt; 1239 1240 /* Sanity check. */ 1241 1242 if (intr == NULL) 1243 return; 1244 1245 KeAcquireSpinLockAtDpcLevel(&intr->ni_dpccountlock); 1246 KeResetEvent(&intr->ni_dpcevt); 1247 if (KeInsertQueueDpc(&intr->ni_dpc, NULL, NULL) == TRUE) 1248 intr->ni_dpccnt++; 1249 KeReleaseSpinLockFromDpcLevel(&intr->ni_dpccountlock); 1250 } 1251 1252 int 1253 ndis_get_info(arg, oid, buf, buflen) 1254 void *arg; 1255 ndis_oid oid; 1256 void *buf; 1257 int *buflen; 1258 { 1259 struct ndis_softc *sc; 1260 ndis_status rval; 1261 ndis_handle adapter; 1262 ndis_queryinfo_handler queryfunc; 1263 uint32_t byteswritten = 0, bytesneeded = 0; 1264 uint8_t irql; 1265 uint64_t duetime; 1266 1267 sc = arg; 1268 1269 KeResetEvent(&sc->ndis_block->nmb_getevent); 1270 1271 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 1272 1273 if (sc->ndis_block->nmb_pendingreq != NULL) { 1274 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1275 panic("ndis_get_info() called while other request pending"); 1276 } else 1277 sc->ndis_block->nmb_pendingreq = (ndis_request *)sc; 1278 1279 queryfunc = sc->ndis_chars->nmc_queryinfo_func; 1280 adapter = sc->ndis_block->nmb_miniportadapterctx; 1281 1282 if (adapter == NULL || queryfunc == NULL || 1283 sc->ndis_block->nmb_devicectx == NULL) { 1284 sc->ndis_block->nmb_pendingreq = NULL; 1285 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1286 return (ENXIO); 1287 } 1288 1289 rval = MSCALL6(queryfunc, adapter, oid, buf, *buflen, 1290 &byteswritten, &bytesneeded); 1291 1292 sc->ndis_block->nmb_pendingreq = NULL; 1293 1294 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1295 1296 /* Wait for requests that block. */ 1297 1298 if (rval == NDIS_STATUS_PENDING) { 1299 /* Wait up to 5 seconds. */ 1300 duetime = (5 * 1000000) * -10; 1301 KeWaitForSingleObject(&sc->ndis_block->nmb_getevent, 1302 0, 0, FALSE, &duetime); 1303 rval = sc->ndis_block->nmb_getstat; 1304 } 1305 1306 if (byteswritten) 1307 *buflen = byteswritten; 1308 if (bytesneeded) 1309 *buflen = bytesneeded; 1310 1311 if (rval == NDIS_STATUS_INVALID_LENGTH || 1312 rval == NDIS_STATUS_BUFFER_TOO_SHORT) 1313 return (ENOSPC); 1314 1315 if (rval == NDIS_STATUS_INVALID_OID) 1316 return (EINVAL); 1317 1318 if (rval == NDIS_STATUS_NOT_SUPPORTED || 1319 rval == NDIS_STATUS_NOT_ACCEPTED) 1320 return (ENOTSUP); 1321 1322 if (rval != NDIS_STATUS_SUCCESS) 1323 return (ENODEV); 1324 1325 return (0); 1326 } 1327 1328 uint32_t 1329 NdisAddDevice(drv, pdo) 1330 driver_object *drv; 1331 device_object *pdo; 1332 { 1333 device_object *fdo; 1334 ndis_miniport_block *block; 1335 struct ndis_softc *sc; 1336 uint32_t status; 1337 int error; 1338 1339 sc = device_get_softc(pdo->do_devext); 1340 1341 if (sc->ndis_iftype == PCMCIABus || sc->ndis_iftype == PCIBus) { 1342 error = bus_setup_intr(sc->ndis_dev, sc->ndis_irq, 1343 INTR_TYPE_NET | INTR_MPSAFE, 1344 NULL, ntoskrnl_intr, NULL, &sc->ndis_intrhand); 1345 if (error) 1346 return (NDIS_STATUS_FAILURE); 1347 } 1348 1349 status = IoCreateDevice(drv, sizeof(ndis_miniport_block), NULL, 1350 FILE_DEVICE_UNKNOWN, 0, FALSE, &fdo); 1351 1352 if (status != STATUS_SUCCESS) 1353 return (status); 1354 1355 block = fdo->do_devext; 1356 1357 block->nmb_filterdbs.nf_ethdb = block; 1358 block->nmb_deviceobj = fdo; 1359 block->nmb_physdeviceobj = pdo; 1360 block->nmb_nextdeviceobj = IoAttachDeviceToDeviceStack(fdo, pdo); 1361 KeInitializeSpinLock(&block->nmb_lock); 1362 KeInitializeSpinLock(&block->nmb_returnlock); 1363 KeInitializeEvent(&block->nmb_getevent, EVENT_TYPE_NOTIFY, TRUE); 1364 KeInitializeEvent(&block->nmb_setevent, EVENT_TYPE_NOTIFY, TRUE); 1365 KeInitializeEvent(&block->nmb_resetevent, EVENT_TYPE_NOTIFY, TRUE); 1366 InitializeListHead(&block->nmb_parmlist); 1367 InitializeListHead(&block->nmb_returnlist); 1368 block->nmb_returnitem = IoAllocateWorkItem(fdo); 1369 1370 /* 1371 * Stash pointers to the miniport block and miniport 1372 * characteristics info in the if_ndis softc so the 1373 * UNIX wrapper driver can get to them later. 1374 */ 1375 sc->ndis_block = block; 1376 sc->ndis_chars = IoGetDriverObjectExtension(drv, (void *)1); 1377 1378 /* 1379 * If the driver has a MiniportTransferData() function, 1380 * we should allocate a private RX packet pool. 1381 */ 1382 1383 if (sc->ndis_chars->nmc_transferdata_func != NULL) { 1384 NdisAllocatePacketPool(&status, &block->nmb_rxpool, 1385 32, PROTOCOL_RESERVED_SIZE_IN_PACKET); 1386 if (status != NDIS_STATUS_SUCCESS) { 1387 IoDetachDevice(block->nmb_nextdeviceobj); 1388 IoDeleteDevice(fdo); 1389 return (status); 1390 } 1391 InitializeListHead((&block->nmb_packetlist)); 1392 } 1393 1394 /* Give interrupt handling priority over timers. */ 1395 IoInitializeDpcRequest(fdo, kernndis_functbl[6].ipt_wrap); 1396 KeSetImportanceDpc(&fdo->do_dpc, KDPC_IMPORTANCE_HIGH); 1397 1398 /* Finish up BSD-specific setup. */ 1399 1400 block->nmb_signature = (void *)0xcafebabe; 1401 block->nmb_status_func = kernndis_functbl[0].ipt_wrap; 1402 block->nmb_statusdone_func = kernndis_functbl[1].ipt_wrap; 1403 block->nmb_setdone_func = kernndis_functbl[2].ipt_wrap; 1404 block->nmb_querydone_func = kernndis_functbl[3].ipt_wrap; 1405 block->nmb_resetdone_func = kernndis_functbl[4].ipt_wrap; 1406 block->nmb_sendrsrc_func = kernndis_functbl[5].ipt_wrap; 1407 block->nmb_pendingreq = NULL; 1408 1409 TAILQ_INSERT_TAIL(&ndis_devhead, block, link); 1410 1411 return (STATUS_SUCCESS); 1412 } 1413 1414 int 1415 ndis_unload_driver(arg) 1416 void *arg; 1417 { 1418 struct ndis_softc *sc; 1419 device_object *fdo; 1420 1421 sc = arg; 1422 1423 if (sc->ndis_intrhand) 1424 bus_teardown_intr(sc->ndis_dev, 1425 sc->ndis_irq, sc->ndis_intrhand); 1426 1427 if (sc->ndis_block->nmb_rlist != NULL) 1428 free(sc->ndis_block->nmb_rlist, M_DEVBUF); 1429 1430 ndis_flush_sysctls(sc); 1431 1432 TAILQ_REMOVE(&ndis_devhead, sc->ndis_block, link); 1433 1434 if (sc->ndis_chars->nmc_transferdata_func != NULL) 1435 NdisFreePacketPool(sc->ndis_block->nmb_rxpool); 1436 fdo = sc->ndis_block->nmb_deviceobj; 1437 IoFreeWorkItem(sc->ndis_block->nmb_returnitem); 1438 IoDetachDevice(sc->ndis_block->nmb_nextdeviceobj); 1439 IoDeleteDevice(fdo); 1440 1441 return (0); 1442 }
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