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: stable/11/sys/compat/ndis/kern_ndis.c 319726 2017-06-08 22:12:10Z glebius $"); 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 = NDISUSB_GET_IFNET(sc); 214 if ( ifp && 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 = NDISUSB_GET_IFNET(sc); 229 if (ifp && 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 = NDISUSB_GET_IFNET(sc); 268 269 if (ifp && 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 /* 289 device_printf(sc->ndis_dev, "ndis_create_sysctls() sc=%p\n", sc); 290 */ 291 vals = sc->ndis_regvals; 292 293 TAILQ_INIT(&sc->ndis_cfglist_head); 294 295 /* Add the driver-specific registry keys. */ 296 297 while(1) { 298 if (vals->nc_cfgkey == NULL) 299 break; 300 301 if (vals->nc_idx != sc->ndis_devidx) { 302 vals++; 303 continue; 304 } 305 306 /* See if we already have a sysctl with this name */ 307 308 oidp = NULL; 309 TAILQ_FOREACH(e, device_get_sysctl_ctx(sc->ndis_dev), link) { 310 oidp = e->entry; 311 if (strcasecmp(oidp->oid_name, vals->nc_cfgkey) == 0) 312 break; 313 oidp = NULL; 314 } 315 316 if (oidp != NULL) { 317 vals++; 318 continue; 319 } 320 321 ndis_add_sysctl(sc, vals->nc_cfgkey, vals->nc_cfgdesc, 322 vals->nc_val, CTLFLAG_RW); 323 vals++; 324 } 325 326 /* Now add a couple of builtin keys. */ 327 328 /* 329 * Environment can be either Windows (0) or WindowsNT (1). 330 * We qualify as the latter. 331 */ 332 ndis_add_sysctl(sc, "Environment", 333 "Windows environment", "1", NDIS_FLAG_RDONLY); 334 335 /* NDIS version should be 5.1. */ 336 ndis_add_sysctl(sc, "NdisVersion", 337 "NDIS API Version", "0x00050001", NDIS_FLAG_RDONLY); 338 339 /* 340 * Some miniport drivers rely on the existence of the SlotNumber, 341 * NetCfgInstanceId and DriverDesc keys. 342 */ 343 ndis_add_sysctl(sc, "SlotNumber", "Slot Numer", "01", NDIS_FLAG_RDONLY); 344 ndis_add_sysctl(sc, "NetCfgInstanceId", "NetCfgInstanceId", 345 "{12345678-1234-5678-CAFE0-123456789ABC}", NDIS_FLAG_RDONLY); 346 ndis_add_sysctl(sc, "DriverDesc", "Driver Description", 347 "NDIS Network Adapter", NDIS_FLAG_RDONLY); 348 349 /* Bus type (PCI, PCMCIA, etc...) */ 350 sprintf(buf, "%d", (int)sc->ndis_iftype); 351 ndis_add_sysctl(sc, "BusType", "Bus Type", buf, NDIS_FLAG_RDONLY); 352 353 if (sc->ndis_res_io != NULL) { 354 sprintf(buf, "0x%jx", rman_get_start(sc->ndis_res_io)); 355 ndis_add_sysctl(sc, "IOBaseAddress", 356 "Base I/O Address", buf, NDIS_FLAG_RDONLY); 357 } 358 359 if (sc->ndis_irq != NULL) { 360 sprintf(buf, "%ju", rman_get_start(sc->ndis_irq)); 361 ndis_add_sysctl(sc, "InterruptNumber", 362 "Interrupt Number", buf, NDIS_FLAG_RDONLY); 363 } 364 365 return (0); 366} 367 368int 369ndis_add_sysctl(arg, key, desc, val, flag_rdonly) 370 void *arg; 371 char *key; 372 char *desc; 373 char *val; 374 int flag_rdonly; 375{ 376 struct ndis_softc *sc; 377 struct ndis_cfglist *cfg; 378 char descstr[256]; 379 380 sc = arg; 381 382 cfg = malloc(sizeof(struct ndis_cfglist), M_DEVBUF, M_NOWAIT|M_ZERO); 383 384 if (cfg == NULL) { 385 printf("failed for %s\n", key); 386 return (ENOMEM); 387 } 388 389 cfg->ndis_cfg.nc_cfgkey = strdup(key, M_DEVBUF); 390 if (desc == NULL) { 391 snprintf(descstr, sizeof(descstr), "%s (dynamic)", key); 392 cfg->ndis_cfg.nc_cfgdesc = strdup(descstr, M_DEVBUF); 393 } else 394 cfg->ndis_cfg.nc_cfgdesc = strdup(desc, M_DEVBUF); 395 strcpy(cfg->ndis_cfg.nc_val, val); 396 397 TAILQ_INSERT_TAIL(&sc->ndis_cfglist_head, cfg, link); 398 399 if (flag_rdonly != 0) { 400 cfg->ndis_oid = 401 SYSCTL_ADD_STRING(device_get_sysctl_ctx(sc->ndis_dev), 402 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ndis_dev)), 403 OID_AUTO, cfg->ndis_cfg.nc_cfgkey, CTLFLAG_RD, 404 cfg->ndis_cfg.nc_val, sizeof(cfg->ndis_cfg.nc_val), 405 cfg->ndis_cfg.nc_cfgdesc); 406 } else { 407 cfg->ndis_oid = 408 SYSCTL_ADD_STRING(device_get_sysctl_ctx(sc->ndis_dev), 409 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ndis_dev)), 410 OID_AUTO, cfg->ndis_cfg.nc_cfgkey, CTLFLAG_RW, 411 cfg->ndis_cfg.nc_val, sizeof(cfg->ndis_cfg.nc_val), 412 cfg->ndis_cfg.nc_cfgdesc); 413 } 414 return (0); 415} 416 417/* 418 * Somewhere, somebody decided "hey, let's automatically create 419 * a sysctl tree for each device instance as it's created -- it'll 420 * make life so much easier!" Lies. Why must they turn the kernel 421 * into a house of lies? 422 */ 423 424int 425ndis_flush_sysctls(arg) 426 void *arg; 427{ 428 struct ndis_softc *sc; 429 struct ndis_cfglist *cfg; 430 struct sysctl_ctx_list *clist; 431 432 sc = arg; 433 434 clist = device_get_sysctl_ctx(sc->ndis_dev); 435 436 while (!TAILQ_EMPTY(&sc->ndis_cfglist_head)) { 437 cfg = TAILQ_FIRST(&sc->ndis_cfglist_head); 438 TAILQ_REMOVE(&sc->ndis_cfglist_head, cfg, link); 439 sysctl_ctx_entry_del(clist, cfg->ndis_oid); 440 sysctl_remove_oid(cfg->ndis_oid, 1, 0); 441 free(cfg->ndis_cfg.nc_cfgkey, M_DEVBUF); 442 free(cfg->ndis_cfg.nc_cfgdesc, M_DEVBUF); 443 free(cfg, M_DEVBUF); 444 } 445 446 return (0); 447} 448 449void * 450ndis_get_routine_address(functbl, name) 451 struct image_patch_table *functbl; 452 char *name; 453{ 454 int i; 455 456 for (i = 0; functbl[i].ipt_name != NULL; i++) 457 if (strcmp(name, functbl[i].ipt_name) == 0) 458 return (functbl[i].ipt_wrap); 459 return (NULL); 460} 461 462static void 463ndis_return(dobj, arg) 464 device_object *dobj; 465 void *arg; 466{ 467 ndis_miniport_block *block; 468 ndis_miniport_characteristics *ch; 469 ndis_return_handler returnfunc; 470 ndis_handle adapter; 471 ndis_packet *p; 472 uint8_t irql; 473 list_entry *l; 474 475 block = arg; 476 ch = IoGetDriverObjectExtension(dobj->do_drvobj, (void *)1); 477 478 p = arg; 479 adapter = block->nmb_miniportadapterctx; 480 481 if (adapter == NULL) 482 return; 483 484 returnfunc = ch->nmc_return_packet_func; 485 486 KeAcquireSpinLock(&block->nmb_returnlock, &irql); 487 while (!IsListEmpty(&block->nmb_returnlist)) { 488 l = RemoveHeadList((&block->nmb_returnlist)); 489 p = CONTAINING_RECORD(l, ndis_packet, np_list); 490 InitializeListHead((&p->np_list)); 491 KeReleaseSpinLock(&block->nmb_returnlock, irql); 492 MSCALL2(returnfunc, adapter, p); 493 KeAcquireSpinLock(&block->nmb_returnlock, &irql); 494 } 495 KeReleaseSpinLock(&block->nmb_returnlock, irql); 496} 497 498void 499ndis_return_packet(struct mbuf *m, void *buf, 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 528void 529ndis_free_bufs(b0) 530 ndis_buffer *b0; 531{ 532 ndis_buffer *next; 533 534 if (b0 == NULL) 535 return; 536 537 while(b0 != NULL) { 538 next = b0->mdl_next; 539 IoFreeMdl(b0); 540 b0 = next; 541 } 542} 543 544void 545ndis_free_packet(p) 546 ndis_packet *p; 547{ 548 if (p == NULL) 549 return; 550 551 ndis_free_bufs(p->np_private.npp_head); 552 NdisFreePacket(p); 553} 554 555int 556ndis_convert_res(arg) 557 void *arg; 558{ 559 struct ndis_softc *sc; 560 ndis_resource_list *rl = NULL; 561 cm_partial_resource_desc *prd = NULL; 562 ndis_miniport_block *block; 563 device_t dev; 564 struct resource_list *brl; 565 struct resource_list_entry *brle; 566 int error = 0; 567 568 sc = arg; 569 block = sc->ndis_block; 570 dev = sc->ndis_dev; 571 572 rl = malloc(sizeof(ndis_resource_list) + 573 (sizeof(cm_partial_resource_desc) * (sc->ndis_rescnt - 1)), 574 M_DEVBUF, M_NOWAIT|M_ZERO); 575 576 if (rl == NULL) 577 return (ENOMEM); 578 579 rl->cprl_version = 5; 580 rl->cprl_revision = 1; 581 rl->cprl_count = sc->ndis_rescnt; 582 prd = rl->cprl_partial_descs; 583 584 brl = BUS_GET_RESOURCE_LIST(dev, dev); 585 586 if (brl != NULL) { 587 588 STAILQ_FOREACH(brle, brl, link) { 589 switch (brle->type) { 590 case SYS_RES_IOPORT: 591 prd->cprd_type = CmResourceTypePort; 592 prd->cprd_flags = CM_RESOURCE_PORT_IO; 593 prd->cprd_sharedisp = 594 CmResourceShareDeviceExclusive; 595 prd->u.cprd_port.cprd_start.np_quad = 596 brle->start; 597 prd->u.cprd_port.cprd_len = brle->count; 598 break; 599 case SYS_RES_MEMORY: 600 prd->cprd_type = CmResourceTypeMemory; 601 prd->cprd_flags = 602 CM_RESOURCE_MEMORY_READ_WRITE; 603 prd->cprd_sharedisp = 604 CmResourceShareDeviceExclusive; 605 prd->u.cprd_mem.cprd_start.np_quad = 606 brle->start; 607 prd->u.cprd_mem.cprd_len = brle->count; 608 break; 609 case SYS_RES_IRQ: 610 prd->cprd_type = CmResourceTypeInterrupt; 611 prd->cprd_flags = 0; 612 /* 613 * Always mark interrupt resources as 614 * shared, since in our implementation, 615 * they will be. 616 */ 617 prd->cprd_sharedisp = 618 CmResourceShareShared; 619 prd->u.cprd_intr.cprd_level = brle->start; 620 prd->u.cprd_intr.cprd_vector = brle->start; 621 prd->u.cprd_intr.cprd_affinity = 0; 622 break; 623 default: 624 break; 625 } 626 prd++; 627 } 628 } 629 630 block->nmb_rlist = rl; 631 632 return (error); 633} 634 635/* 636 * Map an NDIS packet to an mbuf list. When an NDIS driver receives a 637 * packet, it will hand it to us in the form of an ndis_packet, 638 * which we need to convert to an mbuf that is then handed off 639 * to the stack. Note: we configure the mbuf list so that it uses 640 * the memory regions specified by the ndis_buffer structures in 641 * the ndis_packet as external storage. In most cases, this will 642 * point to a memory region allocated by the driver (either by 643 * ndis_malloc_withtag() or ndis_alloc_sharedmem()). We expect 644 * the driver to handle free()ing this region for is, so we set up 645 * a dummy no-op free handler for it. 646 */ 647 648int 649ndis_ptom(m0, p) 650 struct mbuf **m0; 651 ndis_packet *p; 652{ 653 struct mbuf *m = NULL, *prev = NULL; 654 ndis_buffer *buf; 655 ndis_packet_private *priv; 656 uint32_t totlen = 0; 657 struct ifnet *ifp; 658 struct ether_header *eh; 659 int diff; 660 661 if (p == NULL || m0 == NULL) 662 return (EINVAL); 663 664 priv = &p->np_private; 665 buf = priv->npp_head; 666 p->np_refcnt = 0; 667 668 for (buf = priv->npp_head; buf != NULL; buf = buf->mdl_next) { 669 if (buf == priv->npp_head) 670 m = m_gethdr(M_NOWAIT, MT_DATA); 671 else 672 m = m_get(M_NOWAIT, MT_DATA); 673 if (m == NULL) { 674 m_freem(*m0); 675 *m0 = NULL; 676 return (ENOBUFS); 677 } 678 m->m_len = MmGetMdlByteCount(buf); 679 m->m_data = MmGetMdlVirtualAddress(buf); 680 MEXTADD(m, m->m_data, m->m_len, ndis_return_packet, 681 m->m_data, p, 0, EXT_NDIS); 682 p->np_refcnt++; 683 684 totlen += m->m_len; 685 if (m->m_flags & M_PKTHDR) 686 *m0 = m; 687 else 688 prev->m_next = m; 689 prev = m; 690 } 691 692 /* 693 * This is a hack to deal with the Marvell 8335 driver 694 * which, when associated with an AP in WPA-PSK mode, 695 * seems to overpad its frames by 8 bytes. I don't know 696 * that the extra 8 bytes are for, and they're not there 697 * in open mode, so for now clamp the frame size at 1514 698 * until I can figure out how to deal with this properly, 699 * otherwise if_ethersubr() will spank us by discarding 700 * the 'oversize' frames. 701 */ 702 703 eh = mtod((*m0), struct ether_header *); 704 ifp = NDISUSB_GET_IFNET((struct ndis_softc *)p->np_softc); 705 if (ifp && totlen > ETHER_MAX_FRAME(ifp, eh->ether_type, FALSE)) { 706 diff = totlen - ETHER_MAX_FRAME(ifp, eh->ether_type, FALSE); 707 totlen -= diff; 708 m->m_len -= diff; 709 } 710 (*m0)->m_pkthdr.len = totlen; 711 712 return (0); 713} 714 715/* 716 * Create an NDIS packet from an mbuf chain. 717 * This is used mainly when transmitting packets, where we need 718 * to turn an mbuf off an interface's send queue and transform it 719 * into an NDIS packet which will be fed into the NDIS driver's 720 * send routine. 721 * 722 * NDIS packets consist of two parts: an ndis_packet structure, 723 * which is vaguely analogous to the pkthdr portion of an mbuf, 724 * and one or more ndis_buffer structures, which define the 725 * actual memory segments in which the packet data resides. 726 * We need to allocate one ndis_buffer for each mbuf in a chain, 727 * plus one ndis_packet as the header. 728 */ 729 730int 731ndis_mtop(m0, p) 732 struct mbuf *m0; 733 ndis_packet **p; 734{ 735 struct mbuf *m; 736 ndis_buffer *buf = NULL, *prev = NULL; 737 ndis_packet_private *priv; 738 739 if (p == NULL || *p == NULL || m0 == NULL) 740 return (EINVAL); 741 742 priv = &(*p)->np_private; 743 priv->npp_totlen = m0->m_pkthdr.len; 744 745 for (m = m0; m != NULL; m = m->m_next) { 746 if (m->m_len == 0) 747 continue; 748 buf = IoAllocateMdl(m->m_data, m->m_len, FALSE, FALSE, NULL); 749 if (buf == NULL) { 750 ndis_free_packet(*p); 751 *p = NULL; 752 return (ENOMEM); 753 } 754 MmBuildMdlForNonPagedPool(buf); 755 756 if (priv->npp_head == NULL) 757 priv->npp_head = buf; 758 else 759 prev->mdl_next = buf; 760 prev = buf; 761 } 762 763 priv->npp_tail = buf; 764 765 return (0); 766} 767 768int 769ndis_get_supported_oids(arg, oids, oidcnt) 770 void *arg; 771 ndis_oid **oids; 772 int *oidcnt; 773{ 774 int len, rval; 775 ndis_oid *o; 776 777 if (arg == NULL || oids == NULL || oidcnt == NULL) 778 return (EINVAL); 779 len = 0; 780 ndis_get_info(arg, OID_GEN_SUPPORTED_LIST, NULL, &len); 781 782 o = malloc(len, M_DEVBUF, M_NOWAIT); 783 if (o == NULL) 784 return (ENOMEM); 785 786 rval = ndis_get_info(arg, OID_GEN_SUPPORTED_LIST, o, &len); 787 788 if (rval) { 789 free(o, M_DEVBUF); 790 return (rval); 791 } 792 793 *oids = o; 794 *oidcnt = len / 4; 795 796 return (0); 797} 798 799int 800ndis_set_info(arg, oid, buf, buflen) 801 void *arg; 802 ndis_oid oid; 803 void *buf; 804 int *buflen; 805{ 806 struct ndis_softc *sc; 807 ndis_status rval; 808 ndis_handle adapter; 809 ndis_setinfo_handler setfunc; 810 uint32_t byteswritten = 0, bytesneeded = 0; 811 uint8_t irql; 812 uint64_t duetime; 813 814 /* 815 * According to the NDIS spec, MiniportQueryInformation() 816 * and MiniportSetInformation() requests are handled serially: 817 * once one request has been issued, we must wait for it to 818 * finish before allowing another request to proceed. 819 */ 820 821 sc = arg; 822 823 KeResetEvent(&sc->ndis_block->nmb_setevent); 824 825 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 826 827 if (sc->ndis_block->nmb_pendingreq != NULL) { 828 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 829 panic("ndis_set_info() called while other request pending"); 830 } else 831 sc->ndis_block->nmb_pendingreq = (ndis_request *)sc; 832 833 setfunc = sc->ndis_chars->nmc_setinfo_func; 834 adapter = sc->ndis_block->nmb_miniportadapterctx; 835 836 if (adapter == NULL || setfunc == NULL || 837 sc->ndis_block->nmb_devicectx == NULL) { 838 sc->ndis_block->nmb_pendingreq = NULL; 839 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 840 return (ENXIO); 841 } 842 843 rval = MSCALL6(setfunc, adapter, oid, buf, *buflen, 844 &byteswritten, &bytesneeded); 845 846 sc->ndis_block->nmb_pendingreq = NULL; 847 848 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 849 850 if (rval == NDIS_STATUS_PENDING) { 851 /* Wait up to 5 seconds. */ 852 duetime = (5 * 1000000) * -10; 853 KeWaitForSingleObject(&sc->ndis_block->nmb_setevent, 854 0, 0, FALSE, &duetime); 855 rval = sc->ndis_block->nmb_setstat; 856 } 857 858 if (byteswritten) 859 *buflen = byteswritten; 860 if (bytesneeded) 861 *buflen = bytesneeded; 862 863 if (rval == NDIS_STATUS_INVALID_LENGTH) 864 return (ENOSPC); 865 866 if (rval == NDIS_STATUS_INVALID_OID) 867 return (EINVAL); 868 869 if (rval == NDIS_STATUS_NOT_SUPPORTED || 870 rval == NDIS_STATUS_NOT_ACCEPTED) 871 return (ENOTSUP); 872 873 if (rval != NDIS_STATUS_SUCCESS) 874 return (ENODEV); 875 876 return (0); 877} 878 879typedef void (*ndis_senddone_func)(ndis_handle, ndis_packet *, ndis_status); 880 881int 882ndis_send_packets(arg, packets, cnt) 883 void *arg; 884 ndis_packet **packets; 885 int cnt; 886{ 887 struct ndis_softc *sc; 888 ndis_handle adapter; 889 ndis_sendmulti_handler sendfunc; 890 ndis_senddone_func senddonefunc; 891 int i; 892 ndis_packet *p; 893 uint8_t irql = 0; 894 895 sc = arg; 896 adapter = sc->ndis_block->nmb_miniportadapterctx; 897 if (adapter == NULL) 898 return (ENXIO); 899 sendfunc = sc->ndis_chars->nmc_sendmulti_func; 900 senddonefunc = sc->ndis_block->nmb_senddone_func; 901 902 if (NDIS_SERIALIZED(sc->ndis_block)) 903 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 904 905 MSCALL3(sendfunc, adapter, packets, cnt); 906 907 for (i = 0; i < cnt; i++) { 908 p = packets[i]; 909 /* 910 * Either the driver already handed the packet to 911 * ndis_txeof() due to a failure, or it wants to keep 912 * it and release it asynchronously later. Skip to the 913 * next one. 914 */ 915 if (p == NULL || p->np_oob.npo_status == NDIS_STATUS_PENDING) 916 continue; 917 MSCALL3(senddonefunc, sc->ndis_block, p, p->np_oob.npo_status); 918 } 919 920 if (NDIS_SERIALIZED(sc->ndis_block)) 921 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 922 923 return (0); 924} 925 926int 927ndis_send_packet(arg, packet) 928 void *arg; 929 ndis_packet *packet; 930{ 931 struct ndis_softc *sc; 932 ndis_handle adapter; 933 ndis_status status; 934 ndis_sendsingle_handler sendfunc; 935 ndis_senddone_func senddonefunc; 936 uint8_t irql = 0; 937 938 sc = arg; 939 adapter = sc->ndis_block->nmb_miniportadapterctx; 940 if (adapter == NULL) 941 return (ENXIO); 942 sendfunc = sc->ndis_chars->nmc_sendsingle_func; 943 senddonefunc = sc->ndis_block->nmb_senddone_func; 944 945 if (NDIS_SERIALIZED(sc->ndis_block)) 946 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 947 status = MSCALL3(sendfunc, adapter, packet, 948 packet->np_private.npp_flags); 949 950 if (status == NDIS_STATUS_PENDING) { 951 if (NDIS_SERIALIZED(sc->ndis_block)) 952 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 953 return (0); 954 } 955 956 MSCALL3(senddonefunc, sc->ndis_block, packet, status); 957 958 if (NDIS_SERIALIZED(sc->ndis_block)) 959 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 960 961 return (0); 962} 963 964int 965ndis_init_dma(arg) 966 void *arg; 967{ 968 struct ndis_softc *sc; 969 int i, error; 970 971 sc = arg; 972 973 sc->ndis_tmaps = malloc(sizeof(bus_dmamap_t) * sc->ndis_maxpkts, 974 M_DEVBUF, M_NOWAIT|M_ZERO); 975 976 if (sc->ndis_tmaps == NULL) 977 return (ENOMEM); 978 979 for (i = 0; i < sc->ndis_maxpkts; i++) { 980 error = bus_dmamap_create(sc->ndis_ttag, 0, 981 &sc->ndis_tmaps[i]); 982 if (error) { 983 free(sc->ndis_tmaps, M_DEVBUF); 984 return (ENODEV); 985 } 986 } 987 988 return (0); 989} 990 991int 992ndis_destroy_dma(arg) 993 void *arg; 994{ 995 struct ndis_softc *sc; 996 struct mbuf *m; 997 ndis_packet *p = NULL; 998 int i; 999 1000 sc = arg; 1001 1002 for (i = 0; i < sc->ndis_maxpkts; i++) { 1003 if (sc->ndis_txarray[i] != NULL) { 1004 p = sc->ndis_txarray[i]; 1005 m = (struct mbuf *)p->np_rsvd[1]; 1006 if (m != NULL) 1007 m_freem(m); 1008 ndis_free_packet(sc->ndis_txarray[i]); 1009 } 1010 bus_dmamap_destroy(sc->ndis_ttag, sc->ndis_tmaps[i]); 1011 } 1012 1013 free(sc->ndis_tmaps, M_DEVBUF); 1014 1015 bus_dma_tag_destroy(sc->ndis_ttag); 1016 1017 return (0); 1018} 1019 1020int 1021ndis_reset_nic(arg) 1022 void *arg; 1023{ 1024 struct ndis_softc *sc; 1025 ndis_handle adapter; 1026 ndis_reset_handler resetfunc; 1027 uint8_t addressing_reset; 1028 int rval; 1029 uint8_t irql = 0; 1030 1031 sc = arg; 1032 1033 NDIS_LOCK(sc); 1034 adapter = sc->ndis_block->nmb_miniportadapterctx; 1035 resetfunc = sc->ndis_chars->nmc_reset_func; 1036 1037 if (adapter == NULL || resetfunc == NULL || 1038 sc->ndis_block->nmb_devicectx == NULL) { 1039 NDIS_UNLOCK(sc); 1040 return (EIO); 1041 } 1042 1043 NDIS_UNLOCK(sc); 1044 1045 KeResetEvent(&sc->ndis_block->nmb_resetevent); 1046 1047 if (NDIS_SERIALIZED(sc->ndis_block)) 1048 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 1049 1050 rval = MSCALL2(resetfunc, &addressing_reset, adapter); 1051 1052 if (NDIS_SERIALIZED(sc->ndis_block)) 1053 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1054 1055 if (rval == NDIS_STATUS_PENDING) 1056 KeWaitForSingleObject(&sc->ndis_block->nmb_resetevent, 1057 0, 0, FALSE, NULL); 1058 1059 return (0); 1060} 1061 1062int 1063ndis_halt_nic(arg) 1064 void *arg; 1065{ 1066 struct ndis_softc *sc; 1067 ndis_handle adapter; 1068 ndis_halt_handler haltfunc; 1069 ndis_miniport_block *block; 1070 int empty = 0; 1071 uint8_t irql; 1072 1073 sc = arg; 1074 block = sc->ndis_block; 1075 1076 if (!cold) 1077 KeFlushQueuedDpcs(); 1078 1079 /* 1080 * Wait for all packets to be returned. 1081 */ 1082 1083 while (1) { 1084 KeAcquireSpinLock(&block->nmb_returnlock, &irql); 1085 empty = IsListEmpty(&block->nmb_returnlist); 1086 KeReleaseSpinLock(&block->nmb_returnlock, irql); 1087 if (empty) 1088 break; 1089 NdisMSleep(1000); 1090 } 1091 1092 NDIS_LOCK(sc); 1093 adapter = sc->ndis_block->nmb_miniportadapterctx; 1094 if (adapter == NULL) { 1095 NDIS_UNLOCK(sc); 1096 return (EIO); 1097 } 1098 1099 sc->ndis_block->nmb_devicectx = NULL; 1100 1101 /* 1102 * The adapter context is only valid after the init 1103 * handler has been called, and is invalid once the 1104 * halt handler has been called. 1105 */ 1106 1107 haltfunc = sc->ndis_chars->nmc_halt_func; 1108 NDIS_UNLOCK(sc); 1109 1110 MSCALL1(haltfunc, adapter); 1111 1112 NDIS_LOCK(sc); 1113 sc->ndis_block->nmb_miniportadapterctx = NULL; 1114 NDIS_UNLOCK(sc); 1115 1116 return (0); 1117} 1118 1119int 1120ndis_shutdown_nic(arg) 1121 void *arg; 1122{ 1123 struct ndis_softc *sc; 1124 ndis_handle adapter; 1125 ndis_shutdown_handler shutdownfunc; 1126 1127 sc = arg; 1128 NDIS_LOCK(sc); 1129 adapter = sc->ndis_block->nmb_miniportadapterctx; 1130 shutdownfunc = sc->ndis_chars->nmc_shutdown_handler; 1131 NDIS_UNLOCK(sc); 1132 if (adapter == NULL || shutdownfunc == NULL) 1133 return (EIO); 1134 1135 if (sc->ndis_chars->nmc_rsvd0 == NULL) 1136 MSCALL1(shutdownfunc, adapter); 1137 else 1138 MSCALL1(shutdownfunc, sc->ndis_chars->nmc_rsvd0); 1139 1140 TAILQ_REMOVE(&ndis_devhead, sc->ndis_block, link); 1141 1142 return (0); 1143} 1144 1145int 1146ndis_pnpevent_nic(arg, type) 1147 void *arg; 1148 int type; 1149{ 1150 device_t dev; 1151 struct ndis_softc *sc; 1152 ndis_handle adapter; 1153 ndis_pnpevent_handler pnpeventfunc; 1154 1155 dev = arg; 1156 sc = device_get_softc(arg); 1157 NDIS_LOCK(sc); 1158 adapter = sc->ndis_block->nmb_miniportadapterctx; 1159 pnpeventfunc = sc->ndis_chars->nmc_pnpevent_handler; 1160 NDIS_UNLOCK(sc); 1161 if (adapter == NULL || pnpeventfunc == NULL) 1162 return (EIO); 1163 1164 if (sc->ndis_chars->nmc_rsvd0 == NULL) 1165 MSCALL4(pnpeventfunc, adapter, type, NULL, 0); 1166 else 1167 MSCALL4(pnpeventfunc, sc->ndis_chars->nmc_rsvd0, type, NULL, 0); 1168 1169 return (0); 1170} 1171 1172int 1173ndis_init_nic(arg) 1174 void *arg; 1175{ 1176 struct ndis_softc *sc; 1177 ndis_miniport_block *block; 1178 ndis_init_handler initfunc; 1179 ndis_status status, openstatus = 0; 1180 ndis_medium mediumarray[NdisMediumMax]; 1181 uint32_t chosenmedium, i; 1182 1183 if (arg == NULL) 1184 return (EINVAL); 1185 1186 sc = arg; 1187 NDIS_LOCK(sc); 1188 block = sc->ndis_block; 1189 initfunc = sc->ndis_chars->nmc_init_func; 1190 NDIS_UNLOCK(sc); 1191 1192 sc->ndis_block->nmb_timerlist = NULL; 1193 1194 for (i = 0; i < NdisMediumMax; i++) 1195 mediumarray[i] = i; 1196 1197 status = MSCALL6(initfunc, &openstatus, &chosenmedium, 1198 mediumarray, NdisMediumMax, block, block); 1199 1200 /* 1201 * If the init fails, blow away the other exported routines 1202 * we obtained from the driver so we can't call them later. 1203 * If the init failed, none of these will work. 1204 */ 1205 if (status != NDIS_STATUS_SUCCESS) { 1206 NDIS_LOCK(sc); 1207 sc->ndis_block->nmb_miniportadapterctx = NULL; 1208 NDIS_UNLOCK(sc); 1209 return (ENXIO); 1210 } 1211 1212 /* 1213 * This may look really goofy, but apparently it is possible 1214 * to halt a miniport too soon after it's been initialized. 1215 * After MiniportInitialize() finishes, pause for 1 second 1216 * to give the chip a chance to handle any short-lived timers 1217 * that were set in motion. If we call MiniportHalt() too soon, 1218 * some of the timers may not be cancelled, because the driver 1219 * expects them to fire before the halt is called. 1220 */ 1221 1222 pause("ndwait", hz); 1223 1224 NDIS_LOCK(sc); 1225 sc->ndis_block->nmb_devicectx = sc; 1226 NDIS_UNLOCK(sc); 1227 1228 return (0); 1229} 1230 1231static void 1232ndis_intrsetup(dpc, dobj, ip, sc) 1233 kdpc *dpc; 1234 device_object *dobj; 1235 irp *ip; 1236 struct ndis_softc *sc; 1237{ 1238 ndis_miniport_interrupt *intr; 1239 1240 intr = sc->ndis_block->nmb_interrupt; 1241 1242 /* Sanity check. */ 1243 1244 if (intr == NULL) 1245 return; 1246 1247 KeAcquireSpinLockAtDpcLevel(&intr->ni_dpccountlock); 1248 KeResetEvent(&intr->ni_dpcevt); 1249 if (KeInsertQueueDpc(&intr->ni_dpc, NULL, NULL) == TRUE) 1250 intr->ni_dpccnt++; 1251 KeReleaseSpinLockFromDpcLevel(&intr->ni_dpccountlock); 1252} 1253 1254int 1255ndis_get_info(arg, oid, buf, buflen) 1256 void *arg; 1257 ndis_oid oid; 1258 void *buf; 1259 int *buflen; 1260{ 1261 struct ndis_softc *sc; 1262 ndis_status rval; 1263 ndis_handle adapter; 1264 ndis_queryinfo_handler queryfunc; 1265 uint32_t byteswritten = 0, bytesneeded = 0; 1266 uint8_t irql; 1267 uint64_t duetime; 1268 1269 sc = arg; 1270 1271 KeResetEvent(&sc->ndis_block->nmb_getevent); 1272 1273 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); 1274 1275 if (sc->ndis_block->nmb_pendingreq != NULL) { 1276 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1277 panic("ndis_get_info() called while other request pending"); 1278 } else 1279 sc->ndis_block->nmb_pendingreq = (ndis_request *)sc; 1280 1281 queryfunc = sc->ndis_chars->nmc_queryinfo_func; 1282 adapter = sc->ndis_block->nmb_miniportadapterctx; 1283 1284 if (adapter == NULL || queryfunc == NULL || 1285 sc->ndis_block->nmb_devicectx == NULL) { 1286 sc->ndis_block->nmb_pendingreq = NULL; 1287 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1288 return (ENXIO); 1289 } 1290 1291 rval = MSCALL6(queryfunc, adapter, oid, buf, *buflen, 1292 &byteswritten, &bytesneeded); 1293 1294 sc->ndis_block->nmb_pendingreq = NULL; 1295 1296 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); 1297 1298 /* Wait for requests that block. */ 1299 1300 if (rval == NDIS_STATUS_PENDING) { 1301 /* Wait up to 5 seconds. */ 1302 duetime = (5 * 1000000) * -10; 1303 KeWaitForSingleObject(&sc->ndis_block->nmb_getevent, 1304 0, 0, FALSE, &duetime); 1305 rval = sc->ndis_block->nmb_getstat; 1306 } 1307 1308 if (byteswritten) 1309 *buflen = byteswritten; 1310 if (bytesneeded) 1311 *buflen = bytesneeded; 1312 1313 if (rval == NDIS_STATUS_INVALID_LENGTH || 1314 rval == NDIS_STATUS_BUFFER_TOO_SHORT) 1315 return (ENOSPC); 1316 1317 if (rval == NDIS_STATUS_INVALID_OID) 1318 return (EINVAL); 1319 1320 if (rval == NDIS_STATUS_NOT_SUPPORTED || 1321 rval == NDIS_STATUS_NOT_ACCEPTED) 1322 return (ENOTSUP); 1323 1324 if (rval != NDIS_STATUS_SUCCESS) 1325 return (ENODEV); 1326 1327 return (0); 1328} 1329 1330uint32_t 1331NdisAddDevice(drv, pdo) 1332 driver_object *drv; 1333 device_object *pdo; 1334{ 1335 device_object *fdo; 1336 ndis_miniport_block *block; 1337 struct ndis_softc *sc; 1338 uint32_t status; 1339 int error; 1340 1341 sc = device_get_softc(pdo->do_devext); 1342 1343 if (sc->ndis_iftype == PCMCIABus || sc->ndis_iftype == PCIBus) { 1344 error = bus_setup_intr(sc->ndis_dev, sc->ndis_irq, 1345 INTR_TYPE_NET | INTR_MPSAFE, 1346 NULL, ntoskrnl_intr, NULL, &sc->ndis_intrhand); 1347 if (error) 1348 return (NDIS_STATUS_FAILURE); 1349 } 1350 1351 status = IoCreateDevice(drv, sizeof(ndis_miniport_block), NULL, 1352 FILE_DEVICE_UNKNOWN, 0, FALSE, &fdo); 1353 1354 if (status != STATUS_SUCCESS) 1355 return (status); 1356 1357 block = fdo->do_devext; 1358 1359 block->nmb_filterdbs.nf_ethdb = block; 1360 block->nmb_deviceobj = fdo; 1361 block->nmb_physdeviceobj = pdo; 1362 block->nmb_nextdeviceobj = IoAttachDeviceToDeviceStack(fdo, pdo); 1363 KeInitializeSpinLock(&block->nmb_lock); 1364 KeInitializeSpinLock(&block->nmb_returnlock); 1365 KeInitializeEvent(&block->nmb_getevent, EVENT_TYPE_NOTIFY, TRUE); 1366 KeInitializeEvent(&block->nmb_setevent, EVENT_TYPE_NOTIFY, TRUE); 1367 KeInitializeEvent(&block->nmb_resetevent, EVENT_TYPE_NOTIFY, TRUE); 1368 InitializeListHead(&block->nmb_parmlist); 1369 InitializeListHead(&block->nmb_returnlist); 1370 block->nmb_returnitem = IoAllocateWorkItem(fdo); 1371 1372 /* 1373 * Stash pointers to the miniport block and miniport 1374 * characteristics info in the if_ndis softc so the 1375 * UNIX wrapper driver can get to them later. 1376 */ 1377 sc->ndis_block = block; 1378 sc->ndis_chars = IoGetDriverObjectExtension(drv, (void *)1); 1379 1380 /* 1381 * If the driver has a MiniportTransferData() function, 1382 * we should allocate a private RX packet pool. 1383 */ 1384 1385 if (sc->ndis_chars->nmc_transferdata_func != NULL) { 1386 NdisAllocatePacketPool(&status, &block->nmb_rxpool, 1387 32, PROTOCOL_RESERVED_SIZE_IN_PACKET); 1388 if (status != NDIS_STATUS_SUCCESS) { 1389 IoDetachDevice(block->nmb_nextdeviceobj); 1390 IoDeleteDevice(fdo); 1391 return (status); 1392 } 1393 InitializeListHead((&block->nmb_packetlist)); 1394 } 1395 1396 /* Give interrupt handling priority over timers. */ 1397 IoInitializeDpcRequest(fdo, kernndis_functbl[6].ipt_wrap); 1398 KeSetImportanceDpc(&fdo->do_dpc, KDPC_IMPORTANCE_HIGH); 1399 1400 /* Finish up BSD-specific setup. */ 1401 1402 block->nmb_signature = (void *)0xcafebabe; 1403 block->nmb_status_func = kernndis_functbl[0].ipt_wrap; 1404 block->nmb_statusdone_func = kernndis_functbl[1].ipt_wrap; 1405 block->nmb_setdone_func = kernndis_functbl[2].ipt_wrap; 1406 block->nmb_querydone_func = kernndis_functbl[3].ipt_wrap; 1407 block->nmb_resetdone_func = kernndis_functbl[4].ipt_wrap; 1408 block->nmb_sendrsrc_func = kernndis_functbl[5].ipt_wrap; 1409 block->nmb_pendingreq = NULL; 1410 1411 TAILQ_INSERT_TAIL(&ndis_devhead, block, link); 1412 1413 return (STATUS_SUCCESS); 1414} 1415 1416int 1417ndis_unload_driver(arg) 1418 void *arg; 1419{ 1420 struct ndis_softc *sc; 1421 device_object *fdo; 1422 1423 sc = arg; 1424 1425 if (sc->ndis_intrhand) 1426 bus_teardown_intr(sc->ndis_dev, 1427 sc->ndis_irq, sc->ndis_intrhand); 1428 1429 if (sc->ndis_block->nmb_rlist != NULL) 1430 free(sc->ndis_block->nmb_rlist, M_DEVBUF); 1431 1432 ndis_flush_sysctls(sc); 1433 1434 TAILQ_REMOVE(&ndis_devhead, sc->ndis_block, link); 1435 1436 if (sc->ndis_chars->nmc_transferdata_func != NULL) 1437 NdisFreePacketPool(sc->ndis_block->nmb_rxpool); 1438 fdo = sc->ndis_block->nmb_deviceobj; 1439 IoFreeWorkItem(sc->ndis_block->nmb_returnitem); 1440 IoDetachDevice(sc->ndis_block->nmb_nextdeviceobj); 1441 IoDeleteDevice(fdo); 1442 1443 return (0); 1444} 1445