kern_ndis.c revision 166909
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: head/sys/compat/ndis/kern_ndis.c 166909 2007-02-23 16:25:08Z jhb $"); 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 <compat/ndis/pe_var.h> 69#include <compat/ndis/cfg_var.h> 70#include <compat/ndis/resource_var.h> 71#include <compat/ndis/ntoskrnl_var.h> 72#include <compat/ndis/ndis_var.h> 73#include <compat/ndis/hal_var.h> 74#include <compat/ndis/usbd_var.h> 75#include <dev/if_ndis/if_ndisvar.h> 76 77#define NDIS_DUMMY_PATH "\\\\some\\bogus\\path" 78 79static void ndis_status_func(ndis_handle, ndis_status, void *, uint32_t); 80static void ndis_statusdone_func(ndis_handle); 81static void ndis_setdone_func(ndis_handle, ndis_status); 82static void ndis_getdone_func(ndis_handle, ndis_status); 83static void ndis_resetdone_func(ndis_handle, ndis_status, uint8_t); 84static void ndis_sendrsrcavail_func(ndis_handle); 85static void ndis_intrsetup(kdpc *, device_object *, 86 irp *, struct ndis_softc *); 87static void ndis_return(device_object *, void *); 88 89static image_patch_table kernndis_functbl[] = { 90 IMPORT_SFUNC(ndis_status_func, 4), 91 IMPORT_SFUNC(ndis_statusdone_func, 1), 92 IMPORT_SFUNC(ndis_setdone_func, 2), 93 IMPORT_SFUNC(ndis_getdone_func, 2), 94 IMPORT_SFUNC(ndis_resetdone_func, 3), 95 IMPORT_SFUNC(ndis_sendrsrcavail_func, 1), 96 IMPORT_SFUNC(ndis_intrsetup, 4), 97 IMPORT_SFUNC(ndis_return, 1), 98 99 { NULL, NULL, NULL } 100}; 101 102static struct nd_head ndis_devhead; 103 104/* 105 * This allows us to export our symbols to other modules. 106 * Note that we call ourselves 'ndisapi' to avoid a namespace 107 * collision with if_ndis.ko, which internally calls itself 108 * 'ndis.' 109 * 110 * Note: some of the subsystems depend on each other, so the 111 * order in which they're started is important. The order of 112 * importance is: 113 * 114 * HAL - spinlocks and IRQL manipulation 115 * ntoskrnl - DPC and workitem threads, object waiting 116 * windrv - driver/device registration 117 * 118 * The HAL should also be the last thing shut down, since 119 * the ntoskrnl subsystem will use spinlocks right up until 120 * the DPC and workitem threads are terminated. 121 */ 122 123static int 124ndis_modevent(module_t mod, int cmd, void *arg) 125{ 126 int error = 0; 127 image_patch_table *patch; 128 129 switch (cmd) { 130 case MOD_LOAD: 131 /* Initialize subsystems */ 132 hal_libinit(); 133 ntoskrnl_libinit(); 134 windrv_libinit(); 135 ndis_libinit(); 136 usbd_libinit(); 137 138 patch = kernndis_functbl; 139 while (patch->ipt_func != NULL) { 140 windrv_wrap((funcptr)patch->ipt_func, 141 (funcptr *)&patch->ipt_wrap, 142 patch->ipt_argcnt, patch->ipt_ftype); 143 patch++; 144 } 145 146 TAILQ_INIT(&ndis_devhead); 147 148 break; 149 case MOD_SHUTDOWN: 150 if (TAILQ_FIRST(&ndis_devhead) == NULL) { 151 /* Shut down subsystems */ 152 ndis_libfini(); 153 usbd_libfini(); 154 windrv_libfini(); 155 ntoskrnl_libfini(); 156 hal_libfini(); 157 158 patch = kernndis_functbl; 159 while (patch->ipt_func != NULL) { 160 windrv_unwrap(patch->ipt_wrap); 161 patch++; 162 } 163 } 164 break; 165 case MOD_UNLOAD: 166 /* Shut down subsystems */ 167 ndis_libfini(); 168 usbd_libfini(); 169 windrv_libfini(); 170 ntoskrnl_libfini(); 171 hal_libfini(); 172 173 patch = kernndis_functbl; 174 while (patch->ipt_func != NULL) { 175 windrv_unwrap(patch->ipt_wrap); 176 patch++; 177 } 178 179 break; 180 default: 181 error = EINVAL; 182 break; 183 } 184 185 return(error); 186} 187DEV_MODULE(ndisapi, ndis_modevent, NULL); 188MODULE_VERSION(ndisapi, 1); 189 190static void 191ndis_sendrsrcavail_func(adapter) 192 ndis_handle adapter; 193{ 194 return; 195} 196 197static void 198ndis_status_func(adapter, status, sbuf, slen) 199 ndis_handle adapter; 200 ndis_status status; 201 void *sbuf; 202 uint32_t slen; 203{ 204 ndis_miniport_block *block; 205 struct ndis_softc *sc; 206 struct ifnet *ifp; 207 208 block = adapter; 209 sc = device_get_softc(block->nmb_physdeviceobj->do_devext); 210 ifp = sc->ifp; 211 if (ifp->if_flags & IFF_DEBUG) 212 device_printf (sc->ndis_dev, "status: %x\n", status); 213 return; 214} 215 216static void 217ndis_statusdone_func(adapter) 218 ndis_handle adapter; 219{ 220 ndis_miniport_block *block; 221 struct ndis_softc *sc; 222 struct ifnet *ifp; 223 224 block = adapter; 225 sc = device_get_softc(block->nmb_physdeviceobj->do_devext); 226 ifp = sc->ifp; 227 if (ifp->if_flags & IFF_DEBUG) 228 device_printf (sc->ndis_dev, "status complete\n"); 229 return; 230} 231 232static void 233ndis_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 return; 243} 244 245static void 246ndis_getdone_func(adapter, status) 247 ndis_handle adapter; 248 ndis_status status; 249{ 250 ndis_miniport_block *block; 251 block = adapter; 252 253 block->nmb_getstat = status; 254 KeSetEvent(&block->nmb_getevent, IO_NO_INCREMENT, FALSE); 255 return; 256} 257 258static void 259ndis_resetdone_func(adapter, status, addressingreset) 260 ndis_handle adapter; 261 ndis_status status; 262 uint8_t addressingreset; 263{ 264 ndis_miniport_block *block; 265 struct ndis_softc *sc; 266 struct ifnet *ifp; 267 268 block = adapter; 269 sc = device_get_softc(block->nmb_physdeviceobj->do_devext); 270 ifp = sc->ifp; 271 272 if (ifp->if_flags & IFF_DEBUG) 273 device_printf (sc->ndis_dev, "reset done...\n"); 274 KeSetEvent(&block->nmb_resetevent, IO_NO_INCREMENT, FALSE); 275 276 return; 277} 278 279int 280ndis_create_sysctls(arg) 281 void *arg; 282{ 283 struct ndis_softc *sc; 284 ndis_cfg *vals; 285 char buf[256]; 286 struct sysctl_oid *oidp; 287 struct sysctl_ctx_entry *e; 288 289 if (arg == NULL) 290 return(EINVAL); 291 292 sc = arg; 293 vals = sc->ndis_regvals; 294 295 TAILQ_INIT(&sc->ndis_cfglist_head); 296 297#if __FreeBSD_version < 502113 298 /* Create the sysctl tree. */ 299 300 sc->ndis_tree = SYSCTL_ADD_NODE(&sc->ndis_ctx, 301 SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO, 302 device_get_nameunit(sc->ndis_dev), CTLFLAG_RD, 0, 303 device_get_desc(sc->ndis_dev)); 304 305#endif 306 /* Add the driver-specific registry keys. */ 307 308 while(1) { 309 if (vals->nc_cfgkey == NULL) 310 break; 311 312 if (vals->nc_idx != sc->ndis_devidx) { 313 vals++; 314 continue; 315 } 316 317 /* See if we already have a sysctl with this name */ 318 319 oidp = NULL; 320#if __FreeBSD_version < 502113 321 TAILQ_FOREACH(e, &sc->ndis_ctx, link) { 322#else 323 TAILQ_FOREACH(e, device_get_sysctl_ctx(sc->ndis_dev), link) { 324#endif 325 oidp = e->entry; 326 if (ndis_strcasecmp(oidp->oid_name, 327 vals->nc_cfgkey) == 0) 328 break; 329 oidp = NULL; 330 } 331 332 if (oidp != NULL) { 333 vals++; 334 continue; 335 } 336 337 ndis_add_sysctl(sc, vals->nc_cfgkey, vals->nc_cfgdesc, 338 vals->nc_val, CTLFLAG_RW); 339 vals++; 340 } 341 342 /* Now add a couple of builtin keys. */ 343 344 /* 345 * Environment can be either Windows (0) or WindowsNT (1). 346 * We qualify as the latter. 347 */ 348 ndis_add_sysctl(sc, "Environment", 349 "Windows environment", "1", CTLFLAG_RD); 350 351 /* NDIS version should be 5.1. */ 352 ndis_add_sysctl(sc, "NdisVersion", 353 "NDIS API Version", "0x00050001", CTLFLAG_RD); 354 355 /* Bus type (PCI, PCMCIA, etc...) */ 356 sprintf(buf, "%d", (int)sc->ndis_iftype); 357 ndis_add_sysctl(sc, "BusType", "Bus Type", buf, CTLFLAG_RD); 358 359 if (sc->ndis_res_io != NULL) { 360 sprintf(buf, "0x%lx", rman_get_start(sc->ndis_res_io)); 361 ndis_add_sysctl(sc, "IOBaseAddress", 362 "Base I/O Address", buf, CTLFLAG_RD); 363 } 364 365 if (sc->ndis_irq != NULL) { 366 sprintf(buf, "%lu", rman_get_start(sc->ndis_irq)); 367 ndis_add_sysctl(sc, "InterruptNumber", 368 "Interrupt Number", buf, CTLFLAG_RD); 369 } 370 371 return(0); 372} 373 374int 375ndis_add_sysctl(arg, key, desc, val, flag) 376 void *arg; 377 char *key; 378 char *desc; 379 char *val; 380 int flag; 381{ 382 struct ndis_softc *sc; 383 struct ndis_cfglist *cfg; 384 char descstr[256]; 385 386 sc = arg; 387 388 cfg = malloc(sizeof(struct ndis_cfglist), M_DEVBUF, M_NOWAIT|M_ZERO); 389 390 if (cfg == NULL) { 391 printf("failed for %s\n", key); 392 return(ENOMEM); 393 } 394 395 cfg->ndis_cfg.nc_cfgkey = strdup(key, M_DEVBUF); 396 if (desc == NULL) { 397 snprintf(descstr, sizeof(descstr), "%s (dynamic)", key); 398 cfg->ndis_cfg.nc_cfgdesc = strdup(descstr, M_DEVBUF); 399 } else 400 cfg->ndis_cfg.nc_cfgdesc = strdup(desc, M_DEVBUF); 401 strcpy(cfg->ndis_cfg.nc_val, val); 402 403 TAILQ_INSERT_TAIL(&sc->ndis_cfglist_head, cfg, link); 404 405 cfg->ndis_oid = 406#if __FreeBSD_version < 502113 407 SYSCTL_ADD_STRING(&sc->ndis_ctx, SYSCTL_CHILDREN(sc->ndis_tree), 408 OID_AUTO, cfg->ndis_cfg.nc_cfgkey, flag, 409 cfg->ndis_cfg.nc_val, sizeof(cfg->ndis_cfg.nc_val), 410 cfg->ndis_cfg.nc_cfgdesc); 411#else 412 SYSCTL_ADD_STRING(device_get_sysctl_ctx(sc->ndis_dev), 413 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ndis_dev)), 414 OID_AUTO, cfg->ndis_cfg.nc_cfgkey, flag, 415 cfg->ndis_cfg.nc_val, sizeof(cfg->ndis_cfg.nc_val), 416 cfg->ndis_cfg.nc_cfgdesc); 417#endif 418 419 return(0); 420} 421 422/* 423 * Somewhere, somebody decided "hey, let's automatically create 424 * a sysctl tree for each device instance as it's created -- it'll 425 * make life so much easier!" Lies. Why must they turn the kernel 426 * into a house of lies? 427 */ 428 429int 430ndis_flush_sysctls(arg) 431 void *arg; 432{ 433 struct ndis_softc *sc; 434 struct ndis_cfglist *cfg; 435 struct sysctl_ctx_list *clist; 436 437 sc = arg; 438 439#if __FreeBSD_version < 502113 440 clist = &sc->ndis_ctx; 441#else 442 clist = device_get_sysctl_ctx(sc->ndis_dev); 443#endif 444 445 while (!TAILQ_EMPTY(&sc->ndis_cfglist_head)) { 446 cfg = TAILQ_FIRST(&sc->ndis_cfglist_head); 447 TAILQ_REMOVE(&sc->ndis_cfglist_head, cfg, link); 448 sysctl_ctx_entry_del(clist, cfg->ndis_oid); 449 sysctl_remove_oid(cfg->ndis_oid, 1, 0); 450 free(cfg->ndis_cfg.nc_cfgkey, M_DEVBUF); 451 free(cfg->ndis_cfg.nc_cfgdesc, M_DEVBUF); 452 free(cfg, M_DEVBUF); 453 } 454 455 return(0); 456} 457 458static void 459ndis_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 return; 494} 495 496void 497ndis_return_packet(buf, arg) 498 void *buf; /* not used */ 499 void *arg; 500{ 501 ndis_packet *p; 502 ndis_miniport_block *block; 503 504 if (arg == NULL) 505 return; 506 507 p = arg; 508 509 /* Decrement refcount. */ 510 p->np_refcnt--; 511 512 /* Release packet when refcount hits zero, otherwise return. */ 513 if (p->np_refcnt) 514 return; 515 516 block = ((struct ndis_softc *)p->np_softc)->ndis_block; 517 518 KeAcquireSpinLockAtDpcLevel(&block->nmb_returnlock); 519 InitializeListHead((&p->np_list)); 520 InsertHeadList((&block->nmb_returnlist), (&p->np_list)); 521 KeReleaseSpinLockFromDpcLevel(&block->nmb_returnlock); 522 523 IoQueueWorkItem(block->nmb_returnitem, 524 (io_workitem_func)kernndis_functbl[7].ipt_wrap, 525 WORKQUEUE_CRITICAL, block); 526 527 return; 528} 529 530void 531ndis_free_bufs(b0) 532 ndis_buffer *b0; 533{ 534 ndis_buffer *next; 535 536 if (b0 == NULL) 537 return; 538 539 while(b0 != NULL) { 540 next = b0->mdl_next; 541 IoFreeMdl(b0); 542 b0 = next; 543 } 544 545 return; 546} 547int in_reset = 0; 548void 549ndis_free_packet(p) 550 ndis_packet *p; 551{ 552 if (p == NULL) 553 return; 554 555 ndis_free_bufs(p->np_private.npp_head); 556 NdisFreePacket(p); 557 return; 558} 559 560int 561ndis_convert_res(arg) 562 void *arg; 563{ 564 struct ndis_softc *sc; 565 ndis_resource_list *rl = NULL; 566 cm_partial_resource_desc *prd = NULL; 567 ndis_miniport_block *block; 568 device_t dev; 569 struct resource_list *brl; 570 struct resource_list_entry *brle; 571#if __FreeBSD_version < 600022 572 struct resource_list brl_rev; 573 struct resource_list_entry *n; 574#endif 575 int error = 0; 576 577 sc = arg; 578 block = sc->ndis_block; 579 dev = sc->ndis_dev; 580 581#if __FreeBSD_version < 600022 582 SLIST_INIT(&brl_rev); 583#endif 584 585 rl = malloc(sizeof(ndis_resource_list) + 586 (sizeof(cm_partial_resource_desc) * (sc->ndis_rescnt - 1)), 587 M_DEVBUF, M_NOWAIT|M_ZERO); 588 589 if (rl == NULL) 590 return(ENOMEM); 591 592 rl->cprl_version = 5; 593 rl->cprl_version = 1; 594 rl->cprl_count = sc->ndis_rescnt; 595 prd = rl->cprl_partial_descs; 596 597 brl = BUS_GET_RESOURCE_LIST(dev, dev); 598 599 if (brl != NULL) { 600 601#if __FreeBSD_version < 600022 602 /* 603 * We have a small problem. Some PCI devices have 604 * multiple I/O ranges. Windows orders them starting 605 * from lowest numbered BAR to highest. We discover 606 * them in that order too, but insert them into a singly 607 * linked list head first, which means when time comes 608 * to traverse the list, we enumerate them in reverse 609 * order. This screws up some drivers which expect the 610 * BARs to be in ascending order so that they can choose 611 * the "first" one as their register space. Unfortunately, 612 * in order to fix this, we have to create our own 613 * temporary list with the entries in reverse order. 614 */ 615 616 SLIST_FOREACH(brle, brl, link) { 617 n = malloc(sizeof(struct resource_list_entry), 618 M_TEMP, M_NOWAIT); 619 if (n == NULL) { 620 error = ENOMEM; 621 goto bad; 622 } 623 bcopy((char *)brle, (char *)n, 624 sizeof(struct resource_list_entry)); 625 SLIST_INSERT_HEAD(&brl_rev, n, link); 626 } 627 628 SLIST_FOREACH(brle, &brl_rev, link) { 629#else 630 STAILQ_FOREACH(brle, brl, link) { 631#endif 632 switch (brle->type) { 633 case SYS_RES_IOPORT: 634 prd->cprd_type = CmResourceTypePort; 635 prd->cprd_flags = CM_RESOURCE_PORT_IO; 636 prd->cprd_sharedisp = 637 CmResourceShareDeviceExclusive; 638 prd->u.cprd_port.cprd_start.np_quad = 639 brle->start; 640 prd->u.cprd_port.cprd_len = brle->count; 641 break; 642 case SYS_RES_MEMORY: 643 prd->cprd_type = CmResourceTypeMemory; 644 prd->cprd_flags = 645 CM_RESOURCE_MEMORY_READ_WRITE; 646 prd->cprd_sharedisp = 647 CmResourceShareDeviceExclusive; 648 prd->u.cprd_port.cprd_start.np_quad = 649 brle->start; 650 prd->u.cprd_port.cprd_len = brle->count; 651 break; 652 case SYS_RES_IRQ: 653 prd->cprd_type = CmResourceTypeInterrupt; 654 prd->cprd_flags = 0; 655 /* 656 * Always mark interrupt resources as 657 * shared, since in our implementation, 658 * they will be. 659 */ 660 prd->cprd_sharedisp = 661 CmResourceShareShared; 662 prd->u.cprd_intr.cprd_level = brle->start; 663 prd->u.cprd_intr.cprd_vector = brle->start; 664 prd->u.cprd_intr.cprd_affinity = 0; 665 break; 666 default: 667 break; 668 } 669 prd++; 670 } 671 } 672 673 block->nmb_rlist = rl; 674 675#if __FreeBSD_version < 600022 676bad: 677 678 while (!SLIST_EMPTY(&brl_rev)) { 679 n = SLIST_FIRST(&brl_rev); 680 SLIST_REMOVE_HEAD(&brl_rev, link); 681 free (n, M_TEMP); 682 } 683#endif 684 685 return(error); 686} 687 688/* 689 * Map an NDIS packet to an mbuf list. When an NDIS driver receives a 690 * packet, it will hand it to us in the form of an ndis_packet, 691 * which we need to convert to an mbuf that is then handed off 692 * to the stack. Note: we configure the mbuf list so that it uses 693 * the memory regions specified by the ndis_buffer structures in 694 * the ndis_packet as external storage. In most cases, this will 695 * point to a memory region allocated by the driver (either by 696 * ndis_malloc_withtag() or ndis_alloc_sharedmem()). We expect 697 * the driver to handle free()ing this region for is, so we set up 698 * a dummy no-op free handler for it. 699 */ 700 701int 702ndis_ptom(m0, p) 703 struct mbuf **m0; 704 ndis_packet *p; 705{ 706 struct mbuf *m = NULL, *prev = NULL; 707 ndis_buffer *buf; 708 ndis_packet_private *priv; 709 uint32_t totlen = 0; 710 struct ifnet *ifp; 711 struct ether_header *eh; 712 int diff; 713 714 if (p == NULL || m0 == NULL) 715 return(EINVAL); 716 717 priv = &p->np_private; 718 buf = priv->npp_head; 719 p->np_refcnt = 0; 720 721 for (buf = priv->npp_head; buf != NULL; buf = buf->mdl_next) { 722 if (buf == priv->npp_head) 723#ifdef MT_HEADER 724 MGETHDR(m, M_DONTWAIT, MT_HEADER); 725#else 726 MGETHDR(m, M_DONTWAIT, MT_DATA); 727#endif 728 else 729 MGET(m, M_DONTWAIT, MT_DATA); 730 if (m == NULL) { 731 m_freem(*m0); 732 *m0 = NULL; 733 return(ENOBUFS); 734 } 735 m->m_len = MmGetMdlByteCount(buf); 736 m->m_data = MmGetMdlVirtualAddress(buf); 737 MEXTADD(m, m->m_data, m->m_len, ndis_return_packet, 738 p, 0, EXT_NDIS); 739 p->np_refcnt++; 740 741 totlen += m->m_len; 742 if (m->m_flags & M_PKTHDR) 743 *m0 = m; 744 else 745 prev->m_next = m; 746 prev = m; 747 } 748 749 /* 750 * This is a hack to deal with the Marvell 8335 driver 751 * which, when associated with an AP in WPA-PSK mode, 752 * seems to overpad its frames by 8 bytes. I don't know 753 * that the extra 8 bytes are for, and they're not there 754 * in open mode, so for now clamp the frame size at 1514 755 * until I can figure out how to deal with this properly, 756 * otherwise if_ethersubr() will spank us by discarding 757 * the 'oversize' frames. 758 */ 759 760 eh = mtod((*m0), struct ether_header *); 761 ifp = ((struct ndis_softc *)p->np_softc)->ifp; 762 if (totlen > ETHER_MAX_FRAME(ifp, eh->ether_type, FALSE)) { 763 diff = totlen - ETHER_MAX_FRAME(ifp, eh->ether_type, FALSE); 764 totlen -= diff; 765 m->m_len -= diff; 766 } 767 (*m0)->m_pkthdr.len = totlen; 768 769 return(0); 770} 771 772/* 773 * Create an NDIS packet from an mbuf chain. 774 * This is used mainly when transmitting packets, where we need 775 * to turn an mbuf off an interface's send queue and transform it 776 * into an NDIS packet which will be fed into the NDIS driver's 777 * send routine. 778 * 779 * NDIS packets consist of two parts: an ndis_packet structure, 780 * which is vaguely analagous to the pkthdr portion of an mbuf, 781 * and one or more ndis_buffer structures, which define the 782 * actual memory segments in which the packet data resides. 783 * We need to allocate one ndis_buffer for each mbuf in a chain, 784 * plus one ndis_packet as the header. 785 */ 786 787int 788ndis_mtop(m0, p) 789 struct mbuf *m0; 790 ndis_packet **p; 791{ 792 struct mbuf *m; 793 ndis_buffer *buf = NULL, *prev = NULL; 794 ndis_packet_private *priv; 795 796 if (p == NULL || *p == NULL || m0 == NULL) 797 return(EINVAL); 798 799 priv = &(*p)->np_private; 800 priv->npp_totlen = m0->m_pkthdr.len; 801 802 for (m = m0; m != NULL; m = m->m_next) { 803 if (m->m_len == 0) 804 continue; 805 buf = IoAllocateMdl(m->m_data, m->m_len, FALSE, FALSE, NULL); 806 if (buf == NULL) { 807 ndis_free_packet(*p); 808 *p = NULL; 809 return(ENOMEM); 810 } 811 MmBuildMdlForNonPagedPool(buf); 812 813 if (priv->npp_head == NULL) 814 priv->npp_head = buf; 815 else 816 prev->mdl_next = buf; 817 prev = buf; 818 } 819 820 priv->npp_tail = buf; 821 822 return(0); 823} 824 825int 826ndis_get_supported_oids(arg, oids, oidcnt) 827 void *arg; 828 ndis_oid **oids; 829 int *oidcnt; 830{ 831 int len, rval; 832 ndis_oid *o; 833 834 if (arg == NULL || oids == NULL || oidcnt == NULL) 835 return(EINVAL); 836 len = 0; 837 ndis_get_info(arg, OID_GEN_SUPPORTED_LIST, NULL, &len); 838 839 o = malloc(len, M_DEVBUF, M_NOWAIT); 840 if (o == NULL) 841 return(ENOMEM); 842 843 rval = ndis_get_info(arg, OID_GEN_SUPPORTED_LIST, o, &len); 844 845 if (rval) { 846 free(o, M_DEVBUF); 847 return(rval); 848 } 849 850 *oids = o; 851 *oidcnt = len / 4; 852 853 return(0); 854} 855 856int 857ndis_set_info(arg, oid, buf, buflen) 858 void *arg; 859 ndis_oid oid; 860 void *buf; 861 int *buflen; 862{ 863 struct ndis_softc *sc; 864 ndis_status rval; 865 ndis_handle adapter; 866 ndis_setinfo_handler setfunc; 867 uint32_t byteswritten = 0, bytesneeded = 0; 868 uint8_t irql; 869 uint64_t duetime; 870 871 /* 872 * According to the NDIS spec, MiniportQueryInformation() 873 * and MiniportSetInformation() requests are handled serially: 874 * once one request has been issued, we must wait for it to 875 * finish before allowing another request to proceed. 876 */ 877 878 sc = arg; 879 880 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 881 882 if (sc->ndis_block->nmb_pendingreq != NULL) { 883 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 884 panic("ndis_set_info() called while other request pending"); 885 } else 886 sc->ndis_block->nmb_pendingreq = (ndis_request *)sc; 887 888 setfunc = sc->ndis_chars->nmc_setinfo_func; 889 adapter = sc->ndis_block->nmb_miniportadapterctx; 890 891 if (adapter == NULL || setfunc == NULL || 892 sc->ndis_block->nmb_devicectx == NULL) { 893 sc->ndis_block->nmb_pendingreq = NULL; 894 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 895 return(ENXIO); 896 } 897 898 rval = MSCALL6(setfunc, adapter, oid, buf, *buflen, 899 &byteswritten, &bytesneeded); 900 901 sc->ndis_block->nmb_pendingreq = NULL; 902 903 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 904 905 if (rval == NDIS_STATUS_PENDING) { 906 /* Wait up to 5 seconds. */ 907 duetime = (5 * 1000000) * -10; 908 KeResetEvent(&sc->ndis_block->nmb_setevent); 909 KeWaitForSingleObject(&sc->ndis_block->nmb_setevent, 910 0, 0, FALSE, &duetime); 911 rval = sc->ndis_block->nmb_setstat; 912 } 913 914 if (byteswritten) 915 *buflen = byteswritten; 916 if (bytesneeded) 917 *buflen = bytesneeded; 918 919 if (rval == NDIS_STATUS_INVALID_LENGTH) 920 return(ENOSPC); 921 922 if (rval == NDIS_STATUS_INVALID_OID) 923 return(EINVAL); 924 925 if (rval == NDIS_STATUS_NOT_SUPPORTED || 926 rval == NDIS_STATUS_NOT_ACCEPTED) 927 return(ENOTSUP); 928 929 if (rval != NDIS_STATUS_SUCCESS) 930 return(ENODEV); 931 932 return(0); 933} 934 935typedef void (*ndis_senddone_func)(ndis_handle, ndis_packet *, ndis_status); 936 937int 938ndis_send_packets(arg, packets, cnt) 939 void *arg; 940 ndis_packet **packets; 941 int cnt; 942{ 943 struct ndis_softc *sc; 944 ndis_handle adapter; 945 ndis_sendmulti_handler sendfunc; 946 ndis_senddone_func senddonefunc; 947 int i; 948 ndis_packet *p; 949 uint8_t irql; 950 951 sc = arg; 952 adapter = sc->ndis_block->nmb_miniportadapterctx; 953 if (adapter == NULL) 954 return(ENXIO); 955 sendfunc = sc->ndis_chars->nmc_sendmulti_func; 956 senddonefunc = sc->ndis_block->nmb_senddone_func; 957 958 if (NDIS_SERIALIZED(sc->ndis_block)) 959 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 960 961 MSCALL3(sendfunc, adapter, packets, cnt); 962 963 for (i = 0; i < cnt; i++) { 964 p = packets[i]; 965 /* 966 * Either the driver already handed the packet to 967 * ndis_txeof() due to a failure, or it wants to keep 968 * it and release it asynchronously later. Skip to the 969 * next one. 970 */ 971 if (p == NULL || p->np_oob.npo_status == NDIS_STATUS_PENDING) 972 continue; 973 MSCALL3(senddonefunc, sc->ndis_block, p, p->np_oob.npo_status); 974 } 975 976 if (NDIS_SERIALIZED(sc->ndis_block)) 977 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 978 979 return(0); 980} 981 982int 983ndis_send_packet(arg, packet) 984 void *arg; 985 ndis_packet *packet; 986{ 987 struct ndis_softc *sc; 988 ndis_handle adapter; 989 ndis_status status; 990 ndis_sendsingle_handler sendfunc; 991 ndis_senddone_func senddonefunc; 992 uint8_t irql; 993 994 sc = arg; 995 adapter = sc->ndis_block->nmb_miniportadapterctx; 996 if (adapter == NULL) 997 return(ENXIO); 998 sendfunc = sc->ndis_chars->nmc_sendsingle_func; 999 senddonefunc = sc->ndis_block->nmb_senddone_func; 1000 1001 if (NDIS_SERIALIZED(sc->ndis_block)) 1002 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 1003 status = MSCALL3(sendfunc, adapter, packet, 1004 packet->np_private.npp_flags); 1005 1006 if (status == NDIS_STATUS_PENDING) { 1007 if (NDIS_SERIALIZED(sc->ndis_block)) 1008 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1009 return(0); 1010 } 1011 1012 MSCALL3(senddonefunc, sc->ndis_block, packet, status); 1013 1014 if (NDIS_SERIALIZED(sc->ndis_block)) 1015 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1016 1017 return(0); 1018} 1019 1020int 1021ndis_init_dma(arg) 1022 void *arg; 1023{ 1024 struct ndis_softc *sc; 1025 int i, error; 1026 1027 sc = arg; 1028 1029 sc->ndis_tmaps = malloc(sizeof(bus_dmamap_t) * sc->ndis_maxpkts, 1030 M_DEVBUF, M_NOWAIT|M_ZERO); 1031 1032 if (sc->ndis_tmaps == NULL) 1033 return(ENOMEM); 1034 1035 for (i = 0; i < sc->ndis_maxpkts; i++) { 1036 error = bus_dmamap_create(sc->ndis_ttag, 0, 1037 &sc->ndis_tmaps[i]); 1038 if (error) { 1039 free(sc->ndis_tmaps, M_DEVBUF); 1040 return(ENODEV); 1041 } 1042 } 1043 1044 return(0); 1045} 1046 1047int 1048ndis_destroy_dma(arg) 1049 void *arg; 1050{ 1051 struct ndis_softc *sc; 1052 struct mbuf *m; 1053 ndis_packet *p = NULL; 1054 int i; 1055 1056 sc = arg; 1057 1058 for (i = 0; i < sc->ndis_maxpkts; i++) { 1059 if (sc->ndis_txarray[i] != NULL) { 1060 p = sc->ndis_txarray[i]; 1061 m = (struct mbuf *)p->np_rsvd[1]; 1062 if (m != NULL) 1063 m_freem(m); 1064 ndis_free_packet(sc->ndis_txarray[i]); 1065 } 1066 bus_dmamap_destroy(sc->ndis_ttag, sc->ndis_tmaps[i]); 1067 } 1068 1069 free(sc->ndis_tmaps, M_DEVBUF); 1070 1071 bus_dma_tag_destroy(sc->ndis_ttag); 1072 1073 return(0); 1074} 1075 1076int 1077ndis_reset_nic(arg) 1078 void *arg; 1079{ 1080 struct ndis_softc *sc; 1081 ndis_handle adapter; 1082 ndis_reset_handler resetfunc; 1083 uint8_t addressing_reset; 1084 int rval; 1085 uint8_t irql; 1086 1087 sc = arg; 1088 1089 NDIS_LOCK(sc); 1090 adapter = sc->ndis_block->nmb_miniportadapterctx; 1091 resetfunc = sc->ndis_chars->nmc_reset_func; 1092 1093 if (adapter == NULL || resetfunc == NULL || 1094 sc->ndis_block->nmb_devicectx == NULL) { 1095 NDIS_UNLOCK(sc); 1096 return(EIO); 1097 } 1098 1099 NDIS_UNLOCK(sc); 1100 1101 if (NDIS_SERIALIZED(sc->ndis_block)) 1102 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 1103 1104 rval = MSCALL2(resetfunc, &addressing_reset, adapter); 1105 1106 if (NDIS_SERIALIZED(sc->ndis_block)) 1107 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1108 1109 if (rval == NDIS_STATUS_PENDING) { 1110 KeResetEvent(&sc->ndis_block->nmb_resetevent); 1111 KeWaitForSingleObject(&sc->ndis_block->nmb_resetevent, 1112 0, 0, FALSE, NULL); 1113 } 1114 1115 return(0); 1116} 1117 1118int 1119ndis_halt_nic(arg) 1120 void *arg; 1121{ 1122 struct ndis_softc *sc; 1123 ndis_handle adapter; 1124 ndis_halt_handler haltfunc; 1125 ndis_miniport_block *block; 1126 int empty = 0; 1127 uint8_t irql; 1128 1129 sc = arg; 1130 block = sc->ndis_block; 1131 1132 if (!cold) 1133 KeFlushQueuedDpcs(); 1134 1135 /* 1136 * Wait for all packets to be returned. 1137 */ 1138 1139 while (1) { 1140 KeAcquireSpinLock(&block->nmb_returnlock, &irql); 1141 empty = IsListEmpty(&block->nmb_returnlist); 1142 KeReleaseSpinLock(&block->nmb_returnlock, irql); 1143 if (empty) 1144 break; 1145 NdisMSleep(1000); 1146 } 1147 1148 NDIS_LOCK(sc); 1149 adapter = sc->ndis_block->nmb_miniportadapterctx; 1150 if (adapter == NULL) { 1151 NDIS_UNLOCK(sc); 1152 return(EIO); 1153 } 1154 1155 sc->ndis_block->nmb_devicectx = NULL; 1156 1157 /* 1158 * The adapter context is only valid after the init 1159 * handler has been called, and is invalid once the 1160 * halt handler has been called. 1161 */ 1162 1163 haltfunc = sc->ndis_chars->nmc_halt_func; 1164 NDIS_UNLOCK(sc); 1165 1166 MSCALL1(haltfunc, adapter); 1167 1168 NDIS_LOCK(sc); 1169 sc->ndis_block->nmb_miniportadapterctx = NULL; 1170 NDIS_UNLOCK(sc); 1171 1172 return(0); 1173} 1174 1175int 1176ndis_shutdown_nic(arg) 1177 void *arg; 1178{ 1179 struct ndis_softc *sc; 1180 ndis_handle adapter; 1181 ndis_shutdown_handler shutdownfunc; 1182 1183 sc = arg; 1184 NDIS_LOCK(sc); 1185 adapter = sc->ndis_block->nmb_miniportadapterctx; 1186 shutdownfunc = sc->ndis_chars->nmc_shutdown_handler; 1187 NDIS_UNLOCK(sc); 1188 if (adapter == NULL || shutdownfunc == NULL) 1189 return(EIO); 1190 1191 if (sc->ndis_chars->nmc_rsvd0 == NULL) 1192 MSCALL1(shutdownfunc, adapter); 1193 else 1194 MSCALL1(shutdownfunc, sc->ndis_chars->nmc_rsvd0); 1195 1196 TAILQ_REMOVE(&ndis_devhead, sc->ndis_block, link); 1197 1198 return(0); 1199} 1200 1201int 1202ndis_init_nic(arg) 1203 void *arg; 1204{ 1205 struct ndis_softc *sc; 1206 ndis_miniport_block *block; 1207 ndis_init_handler initfunc; 1208 ndis_status status, openstatus = 0; 1209 ndis_medium mediumarray[NdisMediumMax]; 1210 uint32_t chosenmedium, i; 1211 1212 if (arg == NULL) 1213 return(EINVAL); 1214 1215 sc = arg; 1216 NDIS_LOCK(sc); 1217 block = sc->ndis_block; 1218 initfunc = sc->ndis_chars->nmc_init_func; 1219 NDIS_UNLOCK(sc); 1220 1221 sc->ndis_block->nmb_timerlist = NULL; 1222 1223 for (i = 0; i < NdisMediumMax; i++) 1224 mediumarray[i] = i; 1225 1226 status = MSCALL6(initfunc, &openstatus, &chosenmedium, 1227 mediumarray, NdisMediumMax, block, block); 1228 1229 /* 1230 * If the init fails, blow away the other exported routines 1231 * we obtained from the driver so we can't call them later. 1232 * If the init failed, none of these will work. 1233 */ 1234 if (status != NDIS_STATUS_SUCCESS) { 1235 NDIS_LOCK(sc); 1236 sc->ndis_block->nmb_miniportadapterctx = NULL; 1237 NDIS_UNLOCK(sc); 1238 return(ENXIO); 1239 } 1240 1241 /* 1242 * This may look really goofy, but apparently it is possible 1243 * to halt a miniport too soon after it's been initialized. 1244 * After MiniportInitialize() finishes, pause for 1 second 1245 * to give the chip a chance to handle any short-lived timers 1246 * that were set in motion. If we call MiniportHalt() too soon, 1247 * some of the timers may not be cancelled, because the driver 1248 * expects them to fire before the halt is called. 1249 */ 1250 1251 pause("ndwait", hz); 1252 1253 NDIS_LOCK(sc); 1254 sc->ndis_block->nmb_devicectx = sc; 1255 NDIS_UNLOCK(sc); 1256 1257 return(0); 1258} 1259 1260static void 1261ndis_intrsetup(dpc, dobj, ip, sc) 1262 kdpc *dpc; 1263 device_object *dobj; 1264 irp *ip; 1265 struct ndis_softc *sc; 1266{ 1267 ndis_miniport_interrupt *intr; 1268 1269 intr = sc->ndis_block->nmb_interrupt; 1270 1271 /* Sanity check. */ 1272 1273 if (intr == NULL) 1274 return; 1275 1276 KeAcquireSpinLockAtDpcLevel(&intr->ni_dpccountlock); 1277 KeResetEvent(&intr->ni_dpcevt); 1278 if (KeInsertQueueDpc(&intr->ni_dpc, NULL, NULL) == TRUE) 1279 intr->ni_dpccnt++; 1280 KeReleaseSpinLockFromDpcLevel(&intr->ni_dpccountlock); 1281 1282 return; 1283} 1284 1285int 1286ndis_get_info(arg, oid, buf, buflen) 1287 void *arg; 1288 ndis_oid oid; 1289 void *buf; 1290 int *buflen; 1291{ 1292 struct ndis_softc *sc; 1293 ndis_status rval; 1294 ndis_handle adapter; 1295 ndis_queryinfo_handler queryfunc; 1296 uint32_t byteswritten = 0, bytesneeded = 0; 1297 uint8_t irql; 1298 uint64_t duetime; 1299 1300 sc = arg; 1301 1302 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 1303 1304 if (sc->ndis_block->nmb_pendingreq != NULL) { 1305 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1306 panic("ndis_get_info() called while other request pending"); 1307 } else 1308 sc->ndis_block->nmb_pendingreq = (ndis_request *)sc; 1309 1310 queryfunc = sc->ndis_chars->nmc_queryinfo_func; 1311 adapter = sc->ndis_block->nmb_miniportadapterctx; 1312 1313 if (adapter == NULL || queryfunc == NULL || 1314 sc->ndis_block->nmb_devicectx == NULL) { 1315 sc->ndis_block->nmb_pendingreq = NULL; 1316 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1317 return(ENXIO); 1318 } 1319 1320 rval = MSCALL6(queryfunc, adapter, oid, buf, *buflen, 1321 &byteswritten, &bytesneeded); 1322 1323 sc->ndis_block->nmb_pendingreq = NULL; 1324 1325 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1326 1327 /* Wait for requests that block. */ 1328 1329 if (rval == NDIS_STATUS_PENDING) { 1330 /* Wait up to 5 seconds. */ 1331 duetime = (5 * 1000000) * -10; 1332 KeResetEvent(&sc->ndis_block->nmb_getevent); 1333 KeWaitForSingleObject(&sc->ndis_block->nmb_getevent, 1334 0, 0, FALSE, &duetime); 1335 rval = sc->ndis_block->nmb_getstat; 1336 } 1337 1338 if (byteswritten) 1339 *buflen = byteswritten; 1340 if (bytesneeded) 1341 *buflen = bytesneeded; 1342 1343 if (rval == NDIS_STATUS_INVALID_LENGTH || 1344 rval == NDIS_STATUS_BUFFER_TOO_SHORT) 1345 return(ENOSPC); 1346 1347 if (rval == NDIS_STATUS_INVALID_OID) 1348 return(EINVAL); 1349 1350 if (rval == NDIS_STATUS_NOT_SUPPORTED || 1351 rval == NDIS_STATUS_NOT_ACCEPTED) 1352 return(ENOTSUP); 1353 1354 if (rval != NDIS_STATUS_SUCCESS) 1355 return(ENODEV); 1356 1357 return(0); 1358} 1359 1360uint32_t 1361NdisAddDevice(drv, pdo) 1362 driver_object *drv; 1363 device_object *pdo; 1364{ 1365 device_object *fdo; 1366 ndis_miniport_block *block; 1367 struct ndis_softc *sc; 1368 uint32_t status; 1369 int error; 1370 1371 sc = device_get_softc(pdo->do_devext); 1372 1373 if (sc->ndis_iftype == PCMCIABus || sc->ndis_iftype == PCIBus) { 1374 error = bus_setup_intr(sc->ndis_dev, sc->ndis_irq, 1375 INTR_TYPE_NET | INTR_MPSAFE, 1376 NULL, ntoskrnl_intr, NULL, &sc->ndis_intrhand); 1377 if (error) 1378 return(NDIS_STATUS_FAILURE); 1379 } 1380 1381 status = IoCreateDevice(drv, sizeof(ndis_miniport_block), NULL, 1382 FILE_DEVICE_UNKNOWN, 0, FALSE, &fdo); 1383 1384 if (status != STATUS_SUCCESS) 1385 return(status); 1386 1387 block = fdo->do_devext; 1388 1389 block->nmb_filterdbs.nf_ethdb = block; 1390 block->nmb_deviceobj = fdo; 1391 block->nmb_physdeviceobj = pdo; 1392 block->nmb_nextdeviceobj = IoAttachDeviceToDeviceStack(fdo, pdo); 1393 KeInitializeSpinLock(&block->nmb_lock); 1394 KeInitializeSpinLock(&block->nmb_returnlock); 1395 KeInitializeEvent(&block->nmb_getevent, EVENT_TYPE_NOTIFY, TRUE); 1396 KeInitializeEvent(&block->nmb_setevent, EVENT_TYPE_NOTIFY, TRUE); 1397 KeInitializeEvent(&block->nmb_resetevent, EVENT_TYPE_NOTIFY, TRUE); 1398 InitializeListHead(&block->nmb_parmlist); 1399 InitializeListHead(&block->nmb_returnlist); 1400 block->nmb_returnitem = IoAllocateWorkItem(fdo); 1401 1402 /* 1403 * Stash pointers to the miniport block and miniport 1404 * characteristics info in the if_ndis softc so the 1405 * UNIX wrapper driver can get to them later. 1406 */ 1407 sc->ndis_block = block; 1408 sc->ndis_chars = IoGetDriverObjectExtension(drv, (void *)1); 1409 1410 /* 1411 * If the driver has a MiniportTransferData() function, 1412 * we should allocate a private RX packet pool. 1413 */ 1414 1415 if (sc->ndis_chars->nmc_transferdata_func != NULL) { 1416 NdisAllocatePacketPool(&status, &block->nmb_rxpool, 1417 32, PROTOCOL_RESERVED_SIZE_IN_PACKET); 1418 if (status != NDIS_STATUS_SUCCESS) { 1419 IoDetachDevice(block->nmb_nextdeviceobj); 1420 IoDeleteDevice(fdo); 1421 return(status); 1422 } 1423 InitializeListHead((&block->nmb_packetlist)); 1424 } 1425 1426 /* Give interrupt handling priority over timers. */ 1427 IoInitializeDpcRequest(fdo, kernndis_functbl[6].ipt_wrap); 1428 KeSetImportanceDpc(&fdo->do_dpc, KDPC_IMPORTANCE_HIGH); 1429 1430 /* Finish up BSD-specific setup. */ 1431 1432 block->nmb_signature = (void *)0xcafebabe; 1433 block->nmb_status_func = kernndis_functbl[0].ipt_wrap; 1434 block->nmb_statusdone_func = kernndis_functbl[1].ipt_wrap; 1435 block->nmb_setdone_func = kernndis_functbl[2].ipt_wrap; 1436 block->nmb_querydone_func = kernndis_functbl[3].ipt_wrap; 1437 block->nmb_resetdone_func = kernndis_functbl[4].ipt_wrap; 1438 block->nmb_sendrsrc_func = kernndis_functbl[5].ipt_wrap; 1439 block->nmb_pendingreq = NULL; 1440 1441 TAILQ_INSERT_TAIL(&ndis_devhead, block, link); 1442 1443 return (STATUS_SUCCESS); 1444} 1445 1446int 1447ndis_unload_driver(arg) 1448 void *arg; 1449{ 1450 struct ndis_softc *sc; 1451 device_object *fdo; 1452 1453 sc = arg; 1454 1455 if (sc->ndis_intrhand) 1456 bus_teardown_intr(sc->ndis_dev, 1457 sc->ndis_irq, sc->ndis_intrhand); 1458 1459 if (sc->ndis_block->nmb_rlist != NULL) 1460 free(sc->ndis_block->nmb_rlist, M_DEVBUF); 1461 1462 ndis_flush_sysctls(sc); 1463 1464 TAILQ_REMOVE(&ndis_devhead, sc->ndis_block, link); 1465 1466 if (sc->ndis_chars->nmc_transferdata_func != NULL) 1467 NdisFreePacketPool(sc->ndis_block->nmb_rxpool); 1468 fdo = sc->ndis_block->nmb_deviceobj; 1469 IoFreeWorkItem(sc->ndis_block->nmb_returnitem); 1470 IoDetachDevice(sc->ndis_block->nmb_nextdeviceobj); 1471 IoDeleteDevice(fdo); 1472 1473 return(0); 1474} 1475