kern_ndis.c revision 273377
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 273377 2014-10-21 07:31:21Z 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_var.h> 61#include <net/if_arp.h> 62#include <net/ethernet.h> 63#include <net/if_dl.h> 64#include <net/if_media.h> 65 66#include <net80211/ieee80211_var.h> 67#include <net80211/ieee80211_ioctl.h> 68 69#include <dev/usb/usb.h> 70#include <dev/usb/usbdi.h> 71 72#include <compat/ndis/pe_var.h> 73#include <compat/ndis/cfg_var.h> 74#include <compat/ndis/resource_var.h> 75#include <compat/ndis/ntoskrnl_var.h> 76#include <compat/ndis/ndis_var.h> 77#include <compat/ndis/hal_var.h> 78#include <compat/ndis/usbd_var.h> 79#include <dev/if_ndis/if_ndisvar.h> 80 81#define NDIS_DUMMY_PATH "\\\\some\\bogus\\path" 82#define NDIS_FLAG_RDONLY 1 83 84static void ndis_status_func(ndis_handle, ndis_status, void *, uint32_t); 85static void ndis_statusdone_func(ndis_handle); 86static void ndis_setdone_func(ndis_handle, ndis_status); 87static void ndis_getdone_func(ndis_handle, ndis_status); 88static void ndis_resetdone_func(ndis_handle, ndis_status, uint8_t); 89static void ndis_sendrsrcavail_func(ndis_handle); 90static void ndis_intrsetup(kdpc *, device_object *, 91 irp *, struct ndis_softc *); 92static void ndis_return(device_object *, void *); 93 94static image_patch_table kernndis_functbl[] = { 95 IMPORT_SFUNC(ndis_status_func, 4), 96 IMPORT_SFUNC(ndis_statusdone_func, 1), 97 IMPORT_SFUNC(ndis_setdone_func, 2), 98 IMPORT_SFUNC(ndis_getdone_func, 2), 99 IMPORT_SFUNC(ndis_resetdone_func, 3), 100 IMPORT_SFUNC(ndis_sendrsrcavail_func, 1), 101 IMPORT_SFUNC(ndis_intrsetup, 4), 102 IMPORT_SFUNC(ndis_return, 1), 103 104 { NULL, NULL, NULL } 105}; 106 107static struct nd_head ndis_devhead; 108 109/* 110 * This allows us to export our symbols to other modules. 111 * Note that we call ourselves 'ndisapi' to avoid a namespace 112 * collision with if_ndis.ko, which internally calls itself 113 * 'ndis.' 114 * 115 * Note: some of the subsystems depend on each other, so the 116 * order in which they're started is important. The order of 117 * importance is: 118 * 119 * HAL - spinlocks and IRQL manipulation 120 * ntoskrnl - DPC and workitem threads, object waiting 121 * windrv - driver/device registration 122 * 123 * The HAL should also be the last thing shut down, since 124 * the ntoskrnl subsystem will use spinlocks right up until 125 * the DPC and workitem threads are terminated. 126 */ 127 128static int 129ndis_modevent(module_t mod, int cmd, void *arg) 130{ 131 int error = 0; 132 image_patch_table *patch; 133 134 switch (cmd) { 135 case MOD_LOAD: 136 /* Initialize subsystems */ 137 hal_libinit(); 138 ntoskrnl_libinit(); 139 windrv_libinit(); 140 ndis_libinit(); 141 usbd_libinit(); 142 143 patch = kernndis_functbl; 144 while (patch->ipt_func != NULL) { 145 windrv_wrap((funcptr)patch->ipt_func, 146 (funcptr *)&patch->ipt_wrap, 147 patch->ipt_argcnt, patch->ipt_ftype); 148 patch++; 149 } 150 151 TAILQ_INIT(&ndis_devhead); 152 break; 153 case MOD_SHUTDOWN: 154 if (TAILQ_FIRST(&ndis_devhead) == NULL) { 155 /* Shut down subsystems */ 156 ndis_libfini(); 157 usbd_libfini(); 158 windrv_libfini(); 159 ntoskrnl_libfini(); 160 hal_libfini(); 161 162 patch = kernndis_functbl; 163 while (patch->ipt_func != NULL) { 164 windrv_unwrap(patch->ipt_wrap); 165 patch++; 166 } 167 } 168 break; 169 case MOD_UNLOAD: 170 /* Shut down subsystems */ 171 ndis_libfini(); 172 usbd_libfini(); 173 windrv_libfini(); 174 ntoskrnl_libfini(); 175 hal_libfini(); 176 177 patch = kernndis_functbl; 178 while (patch->ipt_func != NULL) { 179 windrv_unwrap(patch->ipt_wrap); 180 patch++; 181 } 182 183 break; 184 default: 185 error = EINVAL; 186 break; 187 } 188 189 return (error); 190} 191DEV_MODULE(ndisapi, ndis_modevent, NULL); 192MODULE_VERSION(ndisapi, 1); 193 194static void 195ndis_sendrsrcavail_func(adapter) 196 ndis_handle adapter; 197{ 198} 199 200static void 201ndis_status_func(adapter, status, sbuf, slen) 202 ndis_handle adapter; 203 ndis_status status; 204 void *sbuf; 205 uint32_t slen; 206{ 207 ndis_miniport_block *block; 208 struct ndis_softc *sc; 209 struct ifnet *ifp; 210 211 block = adapter; 212 sc = device_get_softc(block->nmb_physdeviceobj->do_devext); 213 ifp = sc->ifp; 214 if (ifp->if_flags & IFF_DEBUG) 215 device_printf(sc->ndis_dev, "status: %x\n", status); 216} 217 218static void 219ndis_statusdone_func(adapter) 220 ndis_handle adapter; 221{ 222 ndis_miniport_block *block; 223 struct ndis_softc *sc; 224 struct ifnet *ifp; 225 226 block = adapter; 227 sc = device_get_softc(block->nmb_physdeviceobj->do_devext); 228 ifp = sc->ifp; 229 if (ifp->if_flags & IFF_DEBUG) 230 device_printf(sc->ndis_dev, "status complete\n"); 231} 232 233static void 234ndis_setdone_func(adapter, status) 235 ndis_handle adapter; 236 ndis_status status; 237{ 238 ndis_miniport_block *block; 239 block = adapter; 240 241 block->nmb_setstat = status; 242 KeSetEvent(&block->nmb_setevent, IO_NO_INCREMENT, FALSE); 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} 256 257static void 258ndis_resetdone_func(ndis_handle adapter, ndis_status status, 259 uint8_t addressingreset) 260{ 261 ndis_miniport_block *block; 262 struct ndis_softc *sc; 263 struct ifnet *ifp; 264 265 block = adapter; 266 sc = device_get_softc(block->nmb_physdeviceobj->do_devext); 267 ifp = sc->ifp; 268 269 if (ifp->if_flags & IFF_DEBUG) 270 device_printf(sc->ndis_dev, "reset done...\n"); 271 KeSetEvent(&block->nmb_resetevent, IO_NO_INCREMENT, FALSE); 272} 273 274int 275ndis_create_sysctls(arg) 276 void *arg; 277{ 278 struct ndis_softc *sc; 279 ndis_cfg *vals; 280 char buf[256]; 281 struct sysctl_oid *oidp; 282 struct sysctl_ctx_entry *e; 283 284 if (arg == NULL) 285 return (EINVAL); 286 287 sc = arg; 288 vals = sc->ndis_regvals; 289 290 TAILQ_INIT(&sc->ndis_cfglist_head); 291 292 /* Add the driver-specific registry keys. */ 293 294 while(1) { 295 if (vals->nc_cfgkey == NULL) 296 break; 297 298 if (vals->nc_idx != sc->ndis_devidx) { 299 vals++; 300 continue; 301 } 302 303 /* See if we already have a sysctl with this name */ 304 305 oidp = NULL; 306 TAILQ_FOREACH(e, device_get_sysctl_ctx(sc->ndis_dev), link) { 307 oidp = e->entry; 308 if (strcasecmp(oidp->oid_name, vals->nc_cfgkey) == 0) 309 break; 310 oidp = NULL; 311 } 312 313 if (oidp != NULL) { 314 vals++; 315 continue; 316 } 317 318 ndis_add_sysctl(sc, vals->nc_cfgkey, vals->nc_cfgdesc, 319 vals->nc_val, CTLFLAG_RW); 320 vals++; 321 } 322 323 /* Now add a couple of builtin keys. */ 324 325 /* 326 * Environment can be either Windows (0) or WindowsNT (1). 327 * We qualify as the latter. 328 */ 329 ndis_add_sysctl(sc, "Environment", 330 "Windows environment", "1", NDIS_FLAG_RDONLY); 331 332 /* NDIS version should be 5.1. */ 333 ndis_add_sysctl(sc, "NdisVersion", 334 "NDIS API Version", "0x00050001", NDIS_FLAG_RDONLY); 335 336 /* 337 * Some miniport drivers rely on the existence of the SlotNumber, 338 * NetCfgInstanceId and DriverDesc keys. 339 */ 340 ndis_add_sysctl(sc, "SlotNumber", "Slot Numer", "01", NDIS_FLAG_RDONLY); 341 ndis_add_sysctl(sc, "NetCfgInstanceId", "NetCfgInstanceId", 342 "{12345678-1234-5678-CAFE0-123456789ABC}", NDIS_FLAG_RDONLY); 343 ndis_add_sysctl(sc, "DriverDesc", "Driver Description", 344 "NDIS Network Adapter", NDIS_FLAG_RDONLY); 345 346 /* Bus type (PCI, PCMCIA, etc...) */ 347 sprintf(buf, "%d", (int)sc->ndis_iftype); 348 ndis_add_sysctl(sc, "BusType", "Bus Type", buf, NDIS_FLAG_RDONLY); 349 350 if (sc->ndis_res_io != NULL) { 351 sprintf(buf, "0x%lx", rman_get_start(sc->ndis_res_io)); 352 ndis_add_sysctl(sc, "IOBaseAddress", 353 "Base I/O Address", buf, NDIS_FLAG_RDONLY); 354 } 355 356 if (sc->ndis_irq != NULL) { 357 sprintf(buf, "%lu", rman_get_start(sc->ndis_irq)); 358 ndis_add_sysctl(sc, "InterruptNumber", 359 "Interrupt Number", buf, NDIS_FLAG_RDONLY); 360 } 361 362 return (0); 363} 364 365int 366ndis_add_sysctl(arg, key, desc, val, flag_rdonly) 367 void *arg; 368 char *key; 369 char *desc; 370 char *val; 371 int flag_rdonly; 372{ 373 struct ndis_softc *sc; 374 struct ndis_cfglist *cfg; 375 char descstr[256]; 376 377 sc = arg; 378 379 cfg = malloc(sizeof(struct ndis_cfglist), M_DEVBUF, M_NOWAIT|M_ZERO); 380 381 if (cfg == NULL) { 382 printf("failed for %s\n", key); 383 return (ENOMEM); 384 } 385 386 cfg->ndis_cfg.nc_cfgkey = strdup(key, M_DEVBUF); 387 if (desc == NULL) { 388 snprintf(descstr, sizeof(descstr), "%s (dynamic)", key); 389 cfg->ndis_cfg.nc_cfgdesc = strdup(descstr, M_DEVBUF); 390 } else 391 cfg->ndis_cfg.nc_cfgdesc = strdup(desc, M_DEVBUF); 392 strcpy(cfg->ndis_cfg.nc_val, val); 393 394 TAILQ_INSERT_TAIL(&sc->ndis_cfglist_head, cfg, link); 395 396 if (flag_rdonly != 0) { 397 cfg->ndis_oid = 398 SYSCTL_ADD_STRING(device_get_sysctl_ctx(sc->ndis_dev), 399 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ndis_dev)), 400 OID_AUTO, cfg->ndis_cfg.nc_cfgkey, CTLFLAG_RD, 401 cfg->ndis_cfg.nc_val, sizeof(cfg->ndis_cfg.nc_val), 402 cfg->ndis_cfg.nc_cfgdesc); 403 } else { 404 cfg->ndis_oid = 405 SYSCTL_ADD_STRING(device_get_sysctl_ctx(sc->ndis_dev), 406 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ndis_dev)), 407 OID_AUTO, cfg->ndis_cfg.nc_cfgkey, CTLFLAG_RW, 408 cfg->ndis_cfg.nc_val, sizeof(cfg->ndis_cfg.nc_val), 409 cfg->ndis_cfg.nc_cfgdesc); 410 } 411 return (0); 412} 413 414/* 415 * Somewhere, somebody decided "hey, let's automatically create 416 * a sysctl tree for each device instance as it's created -- it'll 417 * make life so much easier!" Lies. Why must they turn the kernel 418 * into a house of lies? 419 */ 420 421int 422ndis_flush_sysctls(arg) 423 void *arg; 424{ 425 struct ndis_softc *sc; 426 struct ndis_cfglist *cfg; 427 struct sysctl_ctx_list *clist; 428 429 sc = arg; 430 431 clist = device_get_sysctl_ctx(sc->ndis_dev); 432 433 while (!TAILQ_EMPTY(&sc->ndis_cfglist_head)) { 434 cfg = TAILQ_FIRST(&sc->ndis_cfglist_head); 435 TAILQ_REMOVE(&sc->ndis_cfglist_head, cfg, link); 436 sysctl_ctx_entry_del(clist, cfg->ndis_oid); 437 sysctl_remove_oid(cfg->ndis_oid, 1, 0); 438 free(cfg->ndis_cfg.nc_cfgkey, M_DEVBUF); 439 free(cfg->ndis_cfg.nc_cfgdesc, M_DEVBUF); 440 free(cfg, M_DEVBUF); 441 } 442 443 return (0); 444} 445 446void * 447ndis_get_routine_address(functbl, name) 448 struct image_patch_table *functbl; 449 char *name; 450{ 451 int i; 452 453 for (i = 0; functbl[i].ipt_name != NULL; i++) 454 if (strcmp(name, functbl[i].ipt_name) == 0) 455 return (functbl[i].ipt_wrap); 456 return (NULL); 457} 458 459static void 460ndis_return(dobj, arg) 461 device_object *dobj; 462 void *arg; 463{ 464 ndis_miniport_block *block; 465 ndis_miniport_characteristics *ch; 466 ndis_return_handler returnfunc; 467 ndis_handle adapter; 468 ndis_packet *p; 469 uint8_t irql; 470 list_entry *l; 471 472 block = arg; 473 ch = IoGetDriverObjectExtension(dobj->do_drvobj, (void *)1); 474 475 p = arg; 476 adapter = block->nmb_miniportadapterctx; 477 478 if (adapter == NULL) 479 return; 480 481 returnfunc = ch->nmc_return_packet_func; 482 483 KeAcquireSpinLock(&block->nmb_returnlock, &irql); 484 while (!IsListEmpty(&block->nmb_returnlist)) { 485 l = RemoveHeadList((&block->nmb_returnlist)); 486 p = CONTAINING_RECORD(l, ndis_packet, np_list); 487 InitializeListHead((&p->np_list)); 488 KeReleaseSpinLock(&block->nmb_returnlock, irql); 489 MSCALL2(returnfunc, adapter, p); 490 KeAcquireSpinLock(&block->nmb_returnlock, &irql); 491 } 492 KeReleaseSpinLock(&block->nmb_returnlock, irql); 493} 494 495void 496ndis_return_packet(struct mbuf *m, void *buf, void *arg) 497{ 498 ndis_packet *p; 499 ndis_miniport_block *block; 500 501 if (arg == NULL) 502 return; 503 504 p = arg; 505 506 /* Decrement refcount. */ 507 p->np_refcnt--; 508 509 /* Release packet when refcount hits zero, otherwise return. */ 510 if (p->np_refcnt) 511 return; 512 513 block = ((struct ndis_softc *)p->np_softc)->ndis_block; 514 515 KeAcquireSpinLockAtDpcLevel(&block->nmb_returnlock); 516 InitializeListHead((&p->np_list)); 517 InsertHeadList((&block->nmb_returnlist), (&p->np_list)); 518 KeReleaseSpinLockFromDpcLevel(&block->nmb_returnlock); 519 520 IoQueueWorkItem(block->nmb_returnitem, 521 (io_workitem_func)kernndis_functbl[7].ipt_wrap, 522 WORKQUEUE_CRITICAL, block); 523} 524 525void 526ndis_free_bufs(b0) 527 ndis_buffer *b0; 528{ 529 ndis_buffer *next; 530 531 if (b0 == NULL) 532 return; 533 534 while(b0 != NULL) { 535 next = b0->mdl_next; 536 IoFreeMdl(b0); 537 b0 = next; 538 } 539} 540 541void 542ndis_free_packet(p) 543 ndis_packet *p; 544{ 545 if (p == NULL) 546 return; 547 548 ndis_free_bufs(p->np_private.npp_head); 549 NdisFreePacket(p); 550} 551 552int 553ndis_convert_res(arg) 554 void *arg; 555{ 556 struct ndis_softc *sc; 557 ndis_resource_list *rl = NULL; 558 cm_partial_resource_desc *prd = NULL; 559 ndis_miniport_block *block; 560 device_t dev; 561 struct resource_list *brl; 562 struct resource_list_entry *brle; 563 int error = 0; 564 565 sc = arg; 566 block = sc->ndis_block; 567 dev = sc->ndis_dev; 568 569 rl = malloc(sizeof(ndis_resource_list) + 570 (sizeof(cm_partial_resource_desc) * (sc->ndis_rescnt - 1)), 571 M_DEVBUF, M_NOWAIT|M_ZERO); 572 573 if (rl == NULL) 574 return (ENOMEM); 575 576 rl->cprl_version = 5; 577 rl->cprl_revision = 1; 578 rl->cprl_count = sc->ndis_rescnt; 579 prd = rl->cprl_partial_descs; 580 581 brl = BUS_GET_RESOURCE_LIST(dev, dev); 582 583 if (brl != NULL) { 584 585 STAILQ_FOREACH(brle, brl, link) { 586 switch (brle->type) { 587 case SYS_RES_IOPORT: 588 prd->cprd_type = CmResourceTypePort; 589 prd->cprd_flags = CM_RESOURCE_PORT_IO; 590 prd->cprd_sharedisp = 591 CmResourceShareDeviceExclusive; 592 prd->u.cprd_port.cprd_start.np_quad = 593 brle->start; 594 prd->u.cprd_port.cprd_len = brle->count; 595 break; 596 case SYS_RES_MEMORY: 597 prd->cprd_type = CmResourceTypeMemory; 598 prd->cprd_flags = 599 CM_RESOURCE_MEMORY_READ_WRITE; 600 prd->cprd_sharedisp = 601 CmResourceShareDeviceExclusive; 602 prd->u.cprd_mem.cprd_start.np_quad = 603 brle->start; 604 prd->u.cprd_mem.cprd_len = brle->count; 605 break; 606 case SYS_RES_IRQ: 607 prd->cprd_type = CmResourceTypeInterrupt; 608 prd->cprd_flags = 0; 609 /* 610 * Always mark interrupt resources as 611 * shared, since in our implementation, 612 * they will be. 613 */ 614 prd->cprd_sharedisp = 615 CmResourceShareShared; 616 prd->u.cprd_intr.cprd_level = brle->start; 617 prd->u.cprd_intr.cprd_vector = brle->start; 618 prd->u.cprd_intr.cprd_affinity = 0; 619 break; 620 default: 621 break; 622 } 623 prd++; 624 } 625 } 626 627 block->nmb_rlist = rl; 628 629 return (error); 630} 631 632/* 633 * Map an NDIS packet to an mbuf list. When an NDIS driver receives a 634 * packet, it will hand it to us in the form of an ndis_packet, 635 * which we need to convert to an mbuf that is then handed off 636 * to the stack. Note: we configure the mbuf list so that it uses 637 * the memory regions specified by the ndis_buffer structures in 638 * the ndis_packet as external storage. In most cases, this will 639 * point to a memory region allocated by the driver (either by 640 * ndis_malloc_withtag() or ndis_alloc_sharedmem()). We expect 641 * the driver to handle free()ing this region for is, so we set up 642 * a dummy no-op free handler for it. 643 */ 644 645int 646ndis_ptom(m0, p) 647 struct mbuf **m0; 648 ndis_packet *p; 649{ 650 struct mbuf *m = NULL, *prev = NULL; 651 ndis_buffer *buf; 652 ndis_packet_private *priv; 653 uint32_t totlen = 0; 654 struct ifnet *ifp; 655 struct ether_header *eh; 656 int diff; 657 658 if (p == NULL || m0 == NULL) 659 return (EINVAL); 660 661 priv = &p->np_private; 662 buf = priv->npp_head; 663 p->np_refcnt = 0; 664 665 for (buf = priv->npp_head; buf != NULL; buf = buf->mdl_next) { 666 if (buf == priv->npp_head) 667 m = m_gethdr(M_NOWAIT, MT_DATA); 668 else 669 m = m_get(M_NOWAIT, MT_DATA); 670 if (m == NULL) { 671 m_freem(*m0); 672 *m0 = NULL; 673 return (ENOBUFS); 674 } 675 m->m_len = MmGetMdlByteCount(buf); 676 m->m_data = MmGetMdlVirtualAddress(buf); 677 MEXTADD(m, m->m_data, m->m_len, ndis_return_packet, 678 m->m_data, p, 0, EXT_NDIS); 679 p->np_refcnt++; 680 681 totlen += m->m_len; 682 if (m->m_flags & M_PKTHDR) 683 *m0 = m; 684 else 685 prev->m_next = m; 686 prev = m; 687 } 688 689 /* 690 * This is a hack to deal with the Marvell 8335 driver 691 * which, when associated with an AP in WPA-PSK mode, 692 * seems to overpad its frames by 8 bytes. I don't know 693 * that the extra 8 bytes are for, and they're not there 694 * in open mode, so for now clamp the frame size at 1514 695 * until I can figure out how to deal with this properly, 696 * otherwise if_ethersubr() will spank us by discarding 697 * the 'oversize' frames. 698 */ 699 700 eh = mtod((*m0), struct ether_header *); 701 ifp = ((struct ndis_softc *)p->np_softc)->ifp; 702 if (totlen > ETHER_MAX_FRAME(ifp, eh->ether_type, FALSE)) { 703 diff = totlen - ETHER_MAX_FRAME(ifp, eh->ether_type, FALSE); 704 totlen -= diff; 705 m->m_len -= diff; 706 } 707 (*m0)->m_pkthdr.len = totlen; 708 709 return (0); 710} 711 712/* 713 * Create an NDIS packet from an mbuf chain. 714 * This is used mainly when transmitting packets, where we need 715 * to turn an mbuf off an interface's send queue and transform it 716 * into an NDIS packet which will be fed into the NDIS driver's 717 * send routine. 718 * 719 * NDIS packets consist of two parts: an ndis_packet structure, 720 * which is vaguely analagous to the pkthdr portion of an mbuf, 721 * and one or more ndis_buffer structures, which define the 722 * actual memory segments in which the packet data resides. 723 * We need to allocate one ndis_buffer for each mbuf in a chain, 724 * plus one ndis_packet as the header. 725 */ 726 727int 728ndis_mtop(m0, p) 729 struct mbuf *m0; 730 ndis_packet **p; 731{ 732 struct mbuf *m; 733 ndis_buffer *buf = NULL, *prev = NULL; 734 ndis_packet_private *priv; 735 736 if (p == NULL || *p == NULL || m0 == NULL) 737 return (EINVAL); 738 739 priv = &(*p)->np_private; 740 priv->npp_totlen = m0->m_pkthdr.len; 741 742 for (m = m0; m != NULL; m = m->m_next) { 743 if (m->m_len == 0) 744 continue; 745 buf = IoAllocateMdl(m->m_data, m->m_len, FALSE, FALSE, NULL); 746 if (buf == NULL) { 747 ndis_free_packet(*p); 748 *p = NULL; 749 return (ENOMEM); 750 } 751 MmBuildMdlForNonPagedPool(buf); 752 753 if (priv->npp_head == NULL) 754 priv->npp_head = buf; 755 else 756 prev->mdl_next = buf; 757 prev = buf; 758 } 759 760 priv->npp_tail = buf; 761 762 return (0); 763} 764 765int 766ndis_get_supported_oids(arg, oids, oidcnt) 767 void *arg; 768 ndis_oid **oids; 769 int *oidcnt; 770{ 771 int len, rval; 772 ndis_oid *o; 773 774 if (arg == NULL || oids == NULL || oidcnt == NULL) 775 return (EINVAL); 776 len = 0; 777 ndis_get_info(arg, OID_GEN_SUPPORTED_LIST, NULL, &len); 778 779 o = malloc(len, M_DEVBUF, M_NOWAIT); 780 if (o == NULL) 781 return (ENOMEM); 782 783 rval = ndis_get_info(arg, OID_GEN_SUPPORTED_LIST, o, &len); 784 785 if (rval) { 786 free(o, M_DEVBUF); 787 return (rval); 788 } 789 790 *oids = o; 791 *oidcnt = len / 4; 792 793 return (0); 794} 795 796int 797ndis_set_info(arg, oid, buf, buflen) 798 void *arg; 799 ndis_oid oid; 800 void *buf; 801 int *buflen; 802{ 803 struct ndis_softc *sc; 804 ndis_status rval; 805 ndis_handle adapter; 806 ndis_setinfo_handler setfunc; 807 uint32_t byteswritten = 0, bytesneeded = 0; 808 uint8_t irql; 809 uint64_t duetime; 810 811 /* 812 * According to the NDIS spec, MiniportQueryInformation() 813 * and MiniportSetInformation() requests are handled serially: 814 * once one request has been issued, we must wait for it to 815 * finish before allowing another request to proceed. 816 */ 817 818 sc = arg; 819 820 KeResetEvent(&sc->ndis_block->nmb_setevent); 821 822 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 823 824 if (sc->ndis_block->nmb_pendingreq != NULL) { 825 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 826 panic("ndis_set_info() called while other request pending"); 827 } else 828 sc->ndis_block->nmb_pendingreq = (ndis_request *)sc; 829 830 setfunc = sc->ndis_chars->nmc_setinfo_func; 831 adapter = sc->ndis_block->nmb_miniportadapterctx; 832 833 if (adapter == NULL || setfunc == NULL || 834 sc->ndis_block->nmb_devicectx == NULL) { 835 sc->ndis_block->nmb_pendingreq = NULL; 836 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 837 return (ENXIO); 838 } 839 840 rval = MSCALL6(setfunc, adapter, oid, buf, *buflen, 841 &byteswritten, &bytesneeded); 842 843 sc->ndis_block->nmb_pendingreq = NULL; 844 845 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 846 847 if (rval == NDIS_STATUS_PENDING) { 848 /* Wait up to 5 seconds. */ 849 duetime = (5 * 1000000) * -10; 850 KeWaitForSingleObject(&sc->ndis_block->nmb_setevent, 851 0, 0, FALSE, &duetime); 852 rval = sc->ndis_block->nmb_setstat; 853 } 854 855 if (byteswritten) 856 *buflen = byteswritten; 857 if (bytesneeded) 858 *buflen = bytesneeded; 859 860 if (rval == NDIS_STATUS_INVALID_LENGTH) 861 return (ENOSPC); 862 863 if (rval == NDIS_STATUS_INVALID_OID) 864 return (EINVAL); 865 866 if (rval == NDIS_STATUS_NOT_SUPPORTED || 867 rval == NDIS_STATUS_NOT_ACCEPTED) 868 return (ENOTSUP); 869 870 if (rval != NDIS_STATUS_SUCCESS) 871 return (ENODEV); 872 873 return (0); 874} 875 876typedef void (*ndis_senddone_func)(ndis_handle, ndis_packet *, ndis_status); 877 878int 879ndis_send_packets(arg, packets, cnt) 880 void *arg; 881 ndis_packet **packets; 882 int cnt; 883{ 884 struct ndis_softc *sc; 885 ndis_handle adapter; 886 ndis_sendmulti_handler sendfunc; 887 ndis_senddone_func senddonefunc; 888 int i; 889 ndis_packet *p; 890 uint8_t irql = 0; 891 892 sc = arg; 893 adapter = sc->ndis_block->nmb_miniportadapterctx; 894 if (adapter == NULL) 895 return (ENXIO); 896 sendfunc = sc->ndis_chars->nmc_sendmulti_func; 897 senddonefunc = sc->ndis_block->nmb_senddone_func; 898 899 if (NDIS_SERIALIZED(sc->ndis_block)) 900 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 901 902 MSCALL3(sendfunc, adapter, packets, cnt); 903 904 for (i = 0; i < cnt; i++) { 905 p = packets[i]; 906 /* 907 * Either the driver already handed the packet to 908 * ndis_txeof() due to a failure, or it wants to keep 909 * it and release it asynchronously later. Skip to the 910 * next one. 911 */ 912 if (p == NULL || p->np_oob.npo_status == NDIS_STATUS_PENDING) 913 continue; 914 MSCALL3(senddonefunc, sc->ndis_block, p, p->np_oob.npo_status); 915 } 916 917 if (NDIS_SERIALIZED(sc->ndis_block)) 918 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 919 920 return (0); 921} 922 923int 924ndis_send_packet(arg, packet) 925 void *arg; 926 ndis_packet *packet; 927{ 928 struct ndis_softc *sc; 929 ndis_handle adapter; 930 ndis_status status; 931 ndis_sendsingle_handler sendfunc; 932 ndis_senddone_func senddonefunc; 933 uint8_t irql = 0; 934 935 sc = arg; 936 adapter = sc->ndis_block->nmb_miniportadapterctx; 937 if (adapter == NULL) 938 return (ENXIO); 939 sendfunc = sc->ndis_chars->nmc_sendsingle_func; 940 senddonefunc = sc->ndis_block->nmb_senddone_func; 941 942 if (NDIS_SERIALIZED(sc->ndis_block)) 943 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 944 status = MSCALL3(sendfunc, adapter, packet, 945 packet->np_private.npp_flags); 946 947 if (status == NDIS_STATUS_PENDING) { 948 if (NDIS_SERIALIZED(sc->ndis_block)) 949 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 950 return (0); 951 } 952 953 MSCALL3(senddonefunc, sc->ndis_block, packet, status); 954 955 if (NDIS_SERIALIZED(sc->ndis_block)) 956 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 957 958 return (0); 959} 960 961int 962ndis_init_dma(arg) 963 void *arg; 964{ 965 struct ndis_softc *sc; 966 int i, error; 967 968 sc = arg; 969 970 sc->ndis_tmaps = malloc(sizeof(bus_dmamap_t) * sc->ndis_maxpkts, 971 M_DEVBUF, M_NOWAIT|M_ZERO); 972 973 if (sc->ndis_tmaps == NULL) 974 return (ENOMEM); 975 976 for (i = 0; i < sc->ndis_maxpkts; i++) { 977 error = bus_dmamap_create(sc->ndis_ttag, 0, 978 &sc->ndis_tmaps[i]); 979 if (error) { 980 free(sc->ndis_tmaps, M_DEVBUF); 981 return (ENODEV); 982 } 983 } 984 985 return (0); 986} 987 988int 989ndis_destroy_dma(arg) 990 void *arg; 991{ 992 struct ndis_softc *sc; 993 struct mbuf *m; 994 ndis_packet *p = NULL; 995 int i; 996 997 sc = arg; 998 999 for (i = 0; i < sc->ndis_maxpkts; i++) { 1000 if (sc->ndis_txarray[i] != NULL) { 1001 p = sc->ndis_txarray[i]; 1002 m = (struct mbuf *)p->np_rsvd[1]; 1003 if (m != NULL) 1004 m_freem(m); 1005 ndis_free_packet(sc->ndis_txarray[i]); 1006 } 1007 bus_dmamap_destroy(sc->ndis_ttag, sc->ndis_tmaps[i]); 1008 } 1009 1010 free(sc->ndis_tmaps, M_DEVBUF); 1011 1012 bus_dma_tag_destroy(sc->ndis_ttag); 1013 1014 return (0); 1015} 1016 1017int 1018ndis_reset_nic(arg) 1019 void *arg; 1020{ 1021 struct ndis_softc *sc; 1022 ndis_handle adapter; 1023 ndis_reset_handler resetfunc; 1024 uint8_t addressing_reset; 1025 int rval; 1026 uint8_t irql = 0; 1027 1028 sc = arg; 1029 1030 NDIS_LOCK(sc); 1031 adapter = sc->ndis_block->nmb_miniportadapterctx; 1032 resetfunc = sc->ndis_chars->nmc_reset_func; 1033 1034 if (adapter == NULL || resetfunc == NULL || 1035 sc->ndis_block->nmb_devicectx == NULL) { 1036 NDIS_UNLOCK(sc); 1037 return (EIO); 1038 } 1039 1040 NDIS_UNLOCK(sc); 1041 1042 KeResetEvent(&sc->ndis_block->nmb_resetevent); 1043 1044 if (NDIS_SERIALIZED(sc->ndis_block)) 1045 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 1046 1047 rval = MSCALL2(resetfunc, &addressing_reset, adapter); 1048 1049 if (NDIS_SERIALIZED(sc->ndis_block)) 1050 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1051 1052 if (rval == NDIS_STATUS_PENDING) 1053 KeWaitForSingleObject(&sc->ndis_block->nmb_resetevent, 1054 0, 0, FALSE, NULL); 1055 1056 return (0); 1057} 1058 1059int 1060ndis_halt_nic(arg) 1061 void *arg; 1062{ 1063 struct ndis_softc *sc; 1064 ndis_handle adapter; 1065 ndis_halt_handler haltfunc; 1066 ndis_miniport_block *block; 1067 int empty = 0; 1068 uint8_t irql; 1069 1070 sc = arg; 1071 block = sc->ndis_block; 1072 1073 if (!cold) 1074 KeFlushQueuedDpcs(); 1075 1076 /* 1077 * Wait for all packets to be returned. 1078 */ 1079 1080 while (1) { 1081 KeAcquireSpinLock(&block->nmb_returnlock, &irql); 1082 empty = IsListEmpty(&block->nmb_returnlist); 1083 KeReleaseSpinLock(&block->nmb_returnlock, irql); 1084 if (empty) 1085 break; 1086 NdisMSleep(1000); 1087 } 1088 1089 NDIS_LOCK(sc); 1090 adapter = sc->ndis_block->nmb_miniportadapterctx; 1091 if (adapter == NULL) { 1092 NDIS_UNLOCK(sc); 1093 return (EIO); 1094 } 1095 1096 sc->ndis_block->nmb_devicectx = NULL; 1097 1098 /* 1099 * The adapter context is only valid after the init 1100 * handler has been called, and is invalid once the 1101 * halt handler has been called. 1102 */ 1103 1104 haltfunc = sc->ndis_chars->nmc_halt_func; 1105 NDIS_UNLOCK(sc); 1106 1107 MSCALL1(haltfunc, adapter); 1108 1109 NDIS_LOCK(sc); 1110 sc->ndis_block->nmb_miniportadapterctx = NULL; 1111 NDIS_UNLOCK(sc); 1112 1113 return (0); 1114} 1115 1116int 1117ndis_shutdown_nic(arg) 1118 void *arg; 1119{ 1120 struct ndis_softc *sc; 1121 ndis_handle adapter; 1122 ndis_shutdown_handler shutdownfunc; 1123 1124 sc = arg; 1125 NDIS_LOCK(sc); 1126 adapter = sc->ndis_block->nmb_miniportadapterctx; 1127 shutdownfunc = sc->ndis_chars->nmc_shutdown_handler; 1128 NDIS_UNLOCK(sc); 1129 if (adapter == NULL || shutdownfunc == NULL) 1130 return (EIO); 1131 1132 if (sc->ndis_chars->nmc_rsvd0 == NULL) 1133 MSCALL1(shutdownfunc, adapter); 1134 else 1135 MSCALL1(shutdownfunc, sc->ndis_chars->nmc_rsvd0); 1136 1137 TAILQ_REMOVE(&ndis_devhead, sc->ndis_block, link); 1138 1139 return (0); 1140} 1141 1142int 1143ndis_pnpevent_nic(arg, type) 1144 void *arg; 1145 int type; 1146{ 1147 device_t dev; 1148 struct ndis_softc *sc; 1149 ndis_handle adapter; 1150 ndis_pnpevent_handler pnpeventfunc; 1151 1152 dev = arg; 1153 sc = device_get_softc(arg); 1154 NDIS_LOCK(sc); 1155 adapter = sc->ndis_block->nmb_miniportadapterctx; 1156 pnpeventfunc = sc->ndis_chars->nmc_pnpevent_handler; 1157 NDIS_UNLOCK(sc); 1158 if (adapter == NULL || pnpeventfunc == NULL) 1159 return (EIO); 1160 1161 if (sc->ndis_chars->nmc_rsvd0 == NULL) 1162 MSCALL4(pnpeventfunc, adapter, type, NULL, 0); 1163 else 1164 MSCALL4(pnpeventfunc, sc->ndis_chars->nmc_rsvd0, type, NULL, 0); 1165 1166 return (0); 1167} 1168 1169int 1170ndis_init_nic(arg) 1171 void *arg; 1172{ 1173 struct ndis_softc *sc; 1174 ndis_miniport_block *block; 1175 ndis_init_handler initfunc; 1176 ndis_status status, openstatus = 0; 1177 ndis_medium mediumarray[NdisMediumMax]; 1178 uint32_t chosenmedium, i; 1179 1180 if (arg == NULL) 1181 return (EINVAL); 1182 1183 sc = arg; 1184 NDIS_LOCK(sc); 1185 block = sc->ndis_block; 1186 initfunc = sc->ndis_chars->nmc_init_func; 1187 NDIS_UNLOCK(sc); 1188 1189 sc->ndis_block->nmb_timerlist = NULL; 1190 1191 for (i = 0; i < NdisMediumMax; i++) 1192 mediumarray[i] = i; 1193 1194 status = MSCALL6(initfunc, &openstatus, &chosenmedium, 1195 mediumarray, NdisMediumMax, block, block); 1196 1197 /* 1198 * If the init fails, blow away the other exported routines 1199 * we obtained from the driver so we can't call them later. 1200 * If the init failed, none of these will work. 1201 */ 1202 if (status != NDIS_STATUS_SUCCESS) { 1203 NDIS_LOCK(sc); 1204 sc->ndis_block->nmb_miniportadapterctx = NULL; 1205 NDIS_UNLOCK(sc); 1206 return (ENXIO); 1207 } 1208 1209 /* 1210 * This may look really goofy, but apparently it is possible 1211 * to halt a miniport too soon after it's been initialized. 1212 * After MiniportInitialize() finishes, pause for 1 second 1213 * to give the chip a chance to handle any short-lived timers 1214 * that were set in motion. If we call MiniportHalt() too soon, 1215 * some of the timers may not be cancelled, because the driver 1216 * expects them to fire before the halt is called. 1217 */ 1218 1219 pause("ndwait", hz); 1220 1221 NDIS_LOCK(sc); 1222 sc->ndis_block->nmb_devicectx = sc; 1223 NDIS_UNLOCK(sc); 1224 1225 return (0); 1226} 1227 1228static void 1229ndis_intrsetup(dpc, dobj, ip, sc) 1230 kdpc *dpc; 1231 device_object *dobj; 1232 irp *ip; 1233 struct ndis_softc *sc; 1234{ 1235 ndis_miniport_interrupt *intr; 1236 1237 intr = sc->ndis_block->nmb_interrupt; 1238 1239 /* Sanity check. */ 1240 1241 if (intr == NULL) 1242 return; 1243 1244 KeAcquireSpinLockAtDpcLevel(&intr->ni_dpccountlock); 1245 KeResetEvent(&intr->ni_dpcevt); 1246 if (KeInsertQueueDpc(&intr->ni_dpc, NULL, NULL) == TRUE) 1247 intr->ni_dpccnt++; 1248 KeReleaseSpinLockFromDpcLevel(&intr->ni_dpccountlock); 1249} 1250 1251int 1252ndis_get_info(arg, oid, buf, buflen) 1253 void *arg; 1254 ndis_oid oid; 1255 void *buf; 1256 int *buflen; 1257{ 1258 struct ndis_softc *sc; 1259 ndis_status rval; 1260 ndis_handle adapter; 1261 ndis_queryinfo_handler queryfunc; 1262 uint32_t byteswritten = 0, bytesneeded = 0; 1263 uint8_t irql; 1264 uint64_t duetime; 1265 1266 sc = arg; 1267 1268 KeResetEvent(&sc->ndis_block->nmb_getevent); 1269 1270 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 1271 1272 if (sc->ndis_block->nmb_pendingreq != NULL) { 1273 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1274 panic("ndis_get_info() called while other request pending"); 1275 } else 1276 sc->ndis_block->nmb_pendingreq = (ndis_request *)sc; 1277 1278 queryfunc = sc->ndis_chars->nmc_queryinfo_func; 1279 adapter = sc->ndis_block->nmb_miniportadapterctx; 1280 1281 if (adapter == NULL || queryfunc == NULL || 1282 sc->ndis_block->nmb_devicectx == NULL) { 1283 sc->ndis_block->nmb_pendingreq = NULL; 1284 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1285 return (ENXIO); 1286 } 1287 1288 rval = MSCALL6(queryfunc, adapter, oid, buf, *buflen, 1289 &byteswritten, &bytesneeded); 1290 1291 sc->ndis_block->nmb_pendingreq = NULL; 1292 1293 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1294 1295 /* Wait for requests that block. */ 1296 1297 if (rval == NDIS_STATUS_PENDING) { 1298 /* Wait up to 5 seconds. */ 1299 duetime = (5 * 1000000) * -10; 1300 KeWaitForSingleObject(&sc->ndis_block->nmb_getevent, 1301 0, 0, FALSE, &duetime); 1302 rval = sc->ndis_block->nmb_getstat; 1303 } 1304 1305 if (byteswritten) 1306 *buflen = byteswritten; 1307 if (bytesneeded) 1308 *buflen = bytesneeded; 1309 1310 if (rval == NDIS_STATUS_INVALID_LENGTH || 1311 rval == NDIS_STATUS_BUFFER_TOO_SHORT) 1312 return (ENOSPC); 1313 1314 if (rval == NDIS_STATUS_INVALID_OID) 1315 return (EINVAL); 1316 1317 if (rval == NDIS_STATUS_NOT_SUPPORTED || 1318 rval == NDIS_STATUS_NOT_ACCEPTED) 1319 return (ENOTSUP); 1320 1321 if (rval != NDIS_STATUS_SUCCESS) 1322 return (ENODEV); 1323 1324 return (0); 1325} 1326 1327uint32_t 1328NdisAddDevice(drv, pdo) 1329 driver_object *drv; 1330 device_object *pdo; 1331{ 1332 device_object *fdo; 1333 ndis_miniport_block *block; 1334 struct ndis_softc *sc; 1335 uint32_t status; 1336 int error; 1337 1338 sc = device_get_softc(pdo->do_devext); 1339 1340 if (sc->ndis_iftype == PCMCIABus || sc->ndis_iftype == PCIBus) { 1341 error = bus_setup_intr(sc->ndis_dev, sc->ndis_irq, 1342 INTR_TYPE_NET | INTR_MPSAFE, 1343 NULL, ntoskrnl_intr, NULL, &sc->ndis_intrhand); 1344 if (error) 1345 return (NDIS_STATUS_FAILURE); 1346 } 1347 1348 status = IoCreateDevice(drv, sizeof(ndis_miniport_block), NULL, 1349 FILE_DEVICE_UNKNOWN, 0, FALSE, &fdo); 1350 1351 if (status != STATUS_SUCCESS) 1352 return (status); 1353 1354 block = fdo->do_devext; 1355 1356 block->nmb_filterdbs.nf_ethdb = block; 1357 block->nmb_deviceobj = fdo; 1358 block->nmb_physdeviceobj = pdo; 1359 block->nmb_nextdeviceobj = IoAttachDeviceToDeviceStack(fdo, pdo); 1360 KeInitializeSpinLock(&block->nmb_lock); 1361 KeInitializeSpinLock(&block->nmb_returnlock); 1362 KeInitializeEvent(&block->nmb_getevent, EVENT_TYPE_NOTIFY, TRUE); 1363 KeInitializeEvent(&block->nmb_setevent, EVENT_TYPE_NOTIFY, TRUE); 1364 KeInitializeEvent(&block->nmb_resetevent, EVENT_TYPE_NOTIFY, TRUE); 1365 InitializeListHead(&block->nmb_parmlist); 1366 InitializeListHead(&block->nmb_returnlist); 1367 block->nmb_returnitem = IoAllocateWorkItem(fdo); 1368 1369 /* 1370 * Stash pointers to the miniport block and miniport 1371 * characteristics info in the if_ndis softc so the 1372 * UNIX wrapper driver can get to them later. 1373 */ 1374 sc->ndis_block = block; 1375 sc->ndis_chars = IoGetDriverObjectExtension(drv, (void *)1); 1376 1377 /* 1378 * If the driver has a MiniportTransferData() function, 1379 * we should allocate a private RX packet pool. 1380 */ 1381 1382 if (sc->ndis_chars->nmc_transferdata_func != NULL) { 1383 NdisAllocatePacketPool(&status, &block->nmb_rxpool, 1384 32, PROTOCOL_RESERVED_SIZE_IN_PACKET); 1385 if (status != NDIS_STATUS_SUCCESS) { 1386 IoDetachDevice(block->nmb_nextdeviceobj); 1387 IoDeleteDevice(fdo); 1388 return (status); 1389 } 1390 InitializeListHead((&block->nmb_packetlist)); 1391 } 1392 1393 /* Give interrupt handling priority over timers. */ 1394 IoInitializeDpcRequest(fdo, kernndis_functbl[6].ipt_wrap); 1395 KeSetImportanceDpc(&fdo->do_dpc, KDPC_IMPORTANCE_HIGH); 1396 1397 /* Finish up BSD-specific setup. */ 1398 1399 block->nmb_signature = (void *)0xcafebabe; 1400 block->nmb_status_func = kernndis_functbl[0].ipt_wrap; 1401 block->nmb_statusdone_func = kernndis_functbl[1].ipt_wrap; 1402 block->nmb_setdone_func = kernndis_functbl[2].ipt_wrap; 1403 block->nmb_querydone_func = kernndis_functbl[3].ipt_wrap; 1404 block->nmb_resetdone_func = kernndis_functbl[4].ipt_wrap; 1405 block->nmb_sendrsrc_func = kernndis_functbl[5].ipt_wrap; 1406 block->nmb_pendingreq = NULL; 1407 1408 TAILQ_INSERT_TAIL(&ndis_devhead, block, link); 1409 1410 return (STATUS_SUCCESS); 1411} 1412 1413int 1414ndis_unload_driver(arg) 1415 void *arg; 1416{ 1417 struct ndis_softc *sc; 1418 device_object *fdo; 1419 1420 sc = arg; 1421 1422 if (sc->ndis_intrhand) 1423 bus_teardown_intr(sc->ndis_dev, 1424 sc->ndis_irq, sc->ndis_intrhand); 1425 1426 if (sc->ndis_block->nmb_rlist != NULL) 1427 free(sc->ndis_block->nmb_rlist, M_DEVBUF); 1428 1429 ndis_flush_sysctls(sc); 1430 1431 TAILQ_REMOVE(&ndis_devhead, sc->ndis_block, link); 1432 1433 if (sc->ndis_chars->nmc_transferdata_func != NULL) 1434 NdisFreePacketPool(sc->ndis_block->nmb_rxpool); 1435 fdo = sc->ndis_block->nmb_deviceobj; 1436 IoFreeWorkItem(sc->ndis_block->nmb_returnitem); 1437 IoDetachDevice(sc->ndis_block->nmb_nextdeviceobj); 1438 IoDeleteDevice(fdo); 1439 1440 return (0); 1441} 1442