sys/compat/ndis/subr_ndis.c

   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("$FreeBSD$");
  35
  36 /*
  37  * This file implements a translation layer between the BSD networking
  38  * infrasturcture and Windows(R) NDIS network driver modules. A Windows
  39  * NDIS driver calls into several functions in the NDIS.SYS Windows
  40  * kernel module and exports a table of functions designed to be called
  41  * by the NDIS subsystem. Using the PE loader, we can patch our own
  42  * versions of the NDIS routines into a given Windows driver module and
  43  * convince the driver that it is in fact running on Windows.
  44  *
  45  * We provide a table of all our implemented NDIS routines which is patched
  46  * into the driver object code. All our exported routines must use the
  47  * _stdcall calling convention, since that's what the Windows object code
  48  * expects.
  49  */
  50
  51
  52 #include <sys/ctype.h>
  53 #include <sys/param.h>
  54 #include <sys/types.h>
  55 #include <sys/errno.h>
  56
  57 #include <sys/callout.h>
  58 #include <sys/kernel.h>
  59 #include <sys/systm.h>
  60 #include <sys/malloc.h>
  61 #include <sys/lock.h>
  62 #include <sys/mutex.h>
  63 #include <sys/socket.h>
  64 #include <sys/sysctl.h>
  65 #include <sys/timespec.h>
  66 #include <sys/smp.h>
  67 #include <sys/queue.h>
  68 #include <sys/proc.h>
  69 #include <sys/filedesc.h>
  70 #include <sys/namei.h>
  71 #include <sys/fcntl.h>
  72 #include <sys/vnode.h>
  73 #include <sys/kthread.h>
  74 #include <sys/linker.h>
  75 #include <sys/mount.h>
  76 #include <sys/sysproto.h>
  77
  78 #include <net/if.h>
  79 #include <net/if_var.h>
  80 #include <net/if_arp.h>
  81 #include <net/ethernet.h>
  82 #include <net/if_dl.h>
  83 #include <net/if_media.h>
  84
  85 #include <machine/atomic.h>
  86 #include <machine/bus.h>
  87 #include <machine/resource.h>
  88
  89 #include <sys/bus.h>
  90 #include <sys/rman.h>
  91
  92 #include <machine/stdarg.h>
  93
  94 #include <net80211/ieee80211_var.h>
  95 #include <net80211/ieee80211_ioctl.h>
  96
  97 #include <dev/pci/pcireg.h>
  98 #include <dev/pci/pcivar.h>
  99 #include <dev/usb/usb.h>
 100 #include <dev/usb/usbdi.h>
 101
 102 #include <compat/ndis/pe_var.h>
 103 #include <compat/ndis/cfg_var.h>
 104 #include <compat/ndis/resource_var.h>
 105 #include <compat/ndis/ntoskrnl_var.h>
 106 #include <compat/ndis/hal_var.h>
 107 #include <compat/ndis/ndis_var.h>
 108 #include <dev/if_ndis/if_ndisvar.h>
 109
 110 #include <vm/vm.h>
 111 #include <vm/vm_param.h>
 112 #include <vm/pmap.h>
 113 #include <vm/uma.h>
 114 #include <vm/vm_kern.h>
 115 #include <vm/vm_map.h>
 116
 117 static char ndis_filepath[MAXPATHLEN];
 118
 119 SYSCTL_STRING(_hw, OID_AUTO, ndis_filepath, CTLFLAG_RW, ndis_filepath,
 120     MAXPATHLEN, "Path used by NdisOpenFile() to search for files");
 121
 122 static void NdisInitializeWrapper(ndis_handle *,
 123         driver_object *, void *, void *);
 124 static ndis_status NdisMRegisterMiniport(ndis_handle,
 125         ndis_miniport_characteristics *, int);
 126 static ndis_status NdisAllocateMemoryWithTag(void **,
 127         uint32_t, uint32_t);
 128 static ndis_status NdisAllocateMemory(void **,
 129         uint32_t, uint32_t, ndis_physaddr);
 130 static void NdisFreeMemory(void *, uint32_t, uint32_t);
 131 static ndis_status NdisMSetAttributesEx(ndis_handle, ndis_handle,
 132         uint32_t, uint32_t, ndis_interface_type);
 133 static void NdisOpenConfiguration(ndis_status *,
 134         ndis_handle *, ndis_handle);
 135 static void NdisOpenConfigurationKeyByIndex(ndis_status *,
 136         ndis_handle, uint32_t, unicode_string *, ndis_handle *);
 137 static void NdisOpenConfigurationKeyByName(ndis_status *,
 138         ndis_handle, unicode_string *, ndis_handle *);
 139 static ndis_status ndis_encode_parm(ndis_miniport_block *,
 140         struct sysctl_oid *, ndis_parm_type, ndis_config_parm **);
 141 static ndis_status ndis_decode_parm(ndis_miniport_block *,
 142         ndis_config_parm *, char *);
 143 static void NdisReadConfiguration(ndis_status *, ndis_config_parm **,
 144         ndis_handle, unicode_string *, ndis_parm_type);
 145 static void NdisWriteConfiguration(ndis_status *, ndis_handle,
 146         unicode_string *, ndis_config_parm *);
 147 static void NdisCloseConfiguration(ndis_handle);
 148 static void NdisAllocateSpinLock(ndis_spin_lock *);
 149 static void NdisFreeSpinLock(ndis_spin_lock *);
 150 static void NdisAcquireSpinLock(ndis_spin_lock *);
 151 static void NdisReleaseSpinLock(ndis_spin_lock *);
 152 static void NdisDprAcquireSpinLock(ndis_spin_lock *);
 153 static void NdisDprReleaseSpinLock(ndis_spin_lock *);
 154 static void NdisInitializeReadWriteLock(ndis_rw_lock *);
 155 static void NdisAcquireReadWriteLock(ndis_rw_lock *,
 156         uint8_t, ndis_lock_state *);
 157 static void NdisReleaseReadWriteLock(ndis_rw_lock *, ndis_lock_state *);
 158 static uint32_t NdisReadPciSlotInformation(ndis_handle, uint32_t,
 159         uint32_t, void *, uint32_t);
 160 static uint32_t NdisWritePciSlotInformation(ndis_handle, uint32_t,
 161         uint32_t, void *, uint32_t);
 162 static void NdisWriteErrorLogEntry(ndis_handle, ndis_error_code, uint32_t, ...);
 163 static void ndis_map_cb(void *, bus_dma_segment_t *, int, int);
 164 static void NdisMStartBufferPhysicalMapping(ndis_handle,
 165         ndis_buffer *, uint32_t, uint8_t, ndis_paddr_unit *, uint32_t *);
 166 static void NdisMCompleteBufferPhysicalMapping(ndis_handle,
 167         ndis_buffer *, uint32_t);
 168 static void NdisMInitializeTimer(ndis_miniport_timer *, ndis_handle,
 169         ndis_timer_function, void *);
 170 static void NdisInitializeTimer(ndis_timer *,
 171         ndis_timer_function, void *);
 172 static void NdisSetTimer(ndis_timer *, uint32_t);
 173 static void NdisMSetPeriodicTimer(ndis_miniport_timer *, uint32_t);
 174 static void NdisMCancelTimer(ndis_timer *, uint8_t *);
 175 static void ndis_timercall(kdpc *, ndis_miniport_timer *,
 176         void *, void *);
 177 static void NdisMQueryAdapterResources(ndis_status *, ndis_handle,
 178         ndis_resource_list *, uint32_t *);
 179 static ndis_status NdisMRegisterIoPortRange(void **,
 180         ndis_handle, uint32_t, uint32_t);
 181 static void NdisMDeregisterIoPortRange(ndis_handle,
 182         uint32_t, uint32_t, void *);
 183 static void NdisReadNetworkAddress(ndis_status *, void **,
 184         uint32_t *, ndis_handle);
 185 static ndis_status NdisQueryMapRegisterCount(uint32_t, uint32_t *);
 186 static ndis_status NdisMAllocateMapRegisters(ndis_handle,
 187         uint32_t, uint8_t, uint32_t, uint32_t);
 188 static void NdisMFreeMapRegisters(ndis_handle);
 189 static void ndis_mapshared_cb(void *, bus_dma_segment_t *, int, int);
 190 static void NdisMAllocateSharedMemory(ndis_handle, uint32_t,
 191         uint8_t, void **, ndis_physaddr *);
 192 static void ndis_asyncmem_complete(device_object *, void *);
 193 static ndis_status NdisMAllocateSharedMemoryAsync(ndis_handle,
 194         uint32_t, uint8_t, void *);
 195 static void NdisMFreeSharedMemory(ndis_handle, uint32_t,
 196         uint8_t, void *, ndis_physaddr);
 197 static ndis_status NdisMMapIoSpace(void **, ndis_handle,
 198         ndis_physaddr, uint32_t);
 199 static void NdisMUnmapIoSpace(ndis_handle, void *, uint32_t);
 200 static uint32_t NdisGetCacheFillSize(void);
 201 static void *NdisGetRoutineAddress(unicode_string *);
 202 static uint32_t NdisMGetDmaAlignment(ndis_handle);
 203 static ndis_status NdisMInitializeScatterGatherDma(ndis_handle,
 204         uint8_t, uint32_t);
 205 static void NdisUnchainBufferAtFront(ndis_packet *, ndis_buffer **);
 206 static void NdisUnchainBufferAtBack(ndis_packet *, ndis_buffer **);
 207 static void NdisAllocateBufferPool(ndis_status *,
 208         ndis_handle *, uint32_t);
 209 static void NdisFreeBufferPool(ndis_handle);
 210 static void NdisAllocateBuffer(ndis_status *, ndis_buffer **,
 211         ndis_handle, void *, uint32_t);
 212 static void NdisFreeBuffer(ndis_buffer *);
 213 static uint32_t NdisBufferLength(ndis_buffer *);
 214 static void NdisQueryBuffer(ndis_buffer *, void **, uint32_t *);
 215 static void NdisQueryBufferSafe(ndis_buffer *, void **,
 216         uint32_t *, uint32_t);
 217 static void *NdisBufferVirtualAddress(ndis_buffer *);
 218 static void *NdisBufferVirtualAddressSafe(ndis_buffer *, uint32_t);
 219 static void NdisAdjustBufferLength(ndis_buffer *, int);
 220 static uint32_t NdisInterlockedIncrement(uint32_t *);
 221 static uint32_t NdisInterlockedDecrement(uint32_t *);
 222 static void NdisInitializeEvent(ndis_event *);
 223 static void NdisSetEvent(ndis_event *);
 224 static void NdisResetEvent(ndis_event *);
 225 static uint8_t NdisWaitEvent(ndis_event *, uint32_t);
 226 static ndis_status NdisUnicodeStringToAnsiString(ansi_string *,
 227         unicode_string *);
 228 static ndis_status
 229         NdisAnsiStringToUnicodeString(unicode_string *, ansi_string *);
 230 static ndis_status NdisMPciAssignResources(ndis_handle,
 231         uint32_t, ndis_resource_list **);
 232 static ndis_status NdisMRegisterInterrupt(ndis_miniport_interrupt *,
 233         ndis_handle, uint32_t, uint32_t, uint8_t,
 234         uint8_t, ndis_interrupt_mode);
 235 static void NdisMDeregisterInterrupt(ndis_miniport_interrupt *);
 236 static void NdisMRegisterAdapterShutdownHandler(ndis_handle, void *,
 237         ndis_shutdown_handler);
 238 static void NdisMDeregisterAdapterShutdownHandler(ndis_handle);
 239 static uint32_t NDIS_BUFFER_TO_SPAN_PAGES(ndis_buffer *);
 240 static void NdisGetBufferPhysicalArraySize(ndis_buffer *,
 241         uint32_t *);
 242 static void NdisQueryBufferOffset(ndis_buffer *,
 243         uint32_t *, uint32_t *);
 244 static uint32_t NdisReadPcmciaAttributeMemory(ndis_handle,
 245         uint32_t, void *, uint32_t);
 246 static uint32_t NdisWritePcmciaAttributeMemory(ndis_handle,
 247         uint32_t, void *, uint32_t);
 248 static list_entry *NdisInterlockedInsertHeadList(list_entry *,
 249         list_entry *, ndis_spin_lock *);
 250 static list_entry *NdisInterlockedRemoveHeadList(list_entry *,
 251         ndis_spin_lock *);
 252 static list_entry *NdisInterlockedInsertTailList(list_entry *,
 253         list_entry *, ndis_spin_lock *);
 254 static uint8_t
 255         NdisMSynchronizeWithInterrupt(ndis_miniport_interrupt *,
 256         void *, void *);
 257 static void NdisGetCurrentSystemTime(uint64_t *);
 258 static void NdisGetSystemUpTime(uint32_t *);
 259 static uint32_t NdisGetVersion(void);
 260 static void NdisInitializeString(unicode_string *, char *);
 261 static void NdisInitAnsiString(ansi_string *, char *);
 262 static void NdisInitUnicodeString(unicode_string *, uint16_t *);
 263 static void NdisFreeString(unicode_string *);
 264 static ndis_status NdisMRemoveMiniport(ndis_handle *);
 265 static void NdisTerminateWrapper(ndis_handle, void *);
 266 static void NdisMGetDeviceProperty(ndis_handle, device_object **,
 267         device_object **, device_object **, cm_resource_list *,
 268         cm_resource_list *);
 269 static void NdisGetFirstBufferFromPacket(ndis_packet *,
 270         ndis_buffer **, void **, uint32_t *, uint32_t *);
 271 static void NdisGetFirstBufferFromPacketSafe(ndis_packet *,
 272         ndis_buffer **, void **, uint32_t *, uint32_t *, uint32_t);
 273 static int ndis_find_sym(linker_file_t, char *, char *, caddr_t *);
 274 static void NdisOpenFile(ndis_status *, ndis_handle *, uint32_t *,
 275         unicode_string *, ndis_physaddr);
 276 static void NdisMapFile(ndis_status *, void **, ndis_handle);
 277 static void NdisUnmapFile(ndis_handle);
 278 static void NdisCloseFile(ndis_handle);
 279 static uint8_t NdisSystemProcessorCount(void);
 280 static void NdisGetCurrentProcessorCounts(uint32_t *, uint32_t *, uint32_t *);
 281 static void NdisMIndicateStatusComplete(ndis_handle);
 282 static void NdisMIndicateStatus(ndis_handle, ndis_status,
 283     void *, uint32_t);
 284 static uint8_t ndis_intr(kinterrupt *, void *);
 285 static void ndis_intrhand(kdpc *, ndis_miniport_interrupt *, void *, void *);
 286 static funcptr ndis_findwrap(funcptr);
 287 static void NdisCopyFromPacketToPacket(ndis_packet *,
 288         uint32_t, uint32_t, ndis_packet *, uint32_t, uint32_t *);
 289 static void NdisCopyFromPacketToPacketSafe(ndis_packet *,
 290         uint32_t, uint32_t, ndis_packet *, uint32_t, uint32_t *, uint32_t);
 291 static void NdisIMCopySendPerPacketInfo(ndis_packet *, ndis_packet *);
 292 static ndis_status NdisMRegisterDevice(ndis_handle,
 293         unicode_string *, unicode_string *, driver_dispatch **,
 294         void **, ndis_handle *);
 295 static ndis_status NdisMDeregisterDevice(ndis_handle);
 296 static ndis_status
 297         NdisMQueryAdapterInstanceName(unicode_string *, ndis_handle);
 298 static void NdisMRegisterUnloadHandler(ndis_handle, void *);
 299 static void dummy(void);
 300
 301 /*
 302  * Some really old drivers do not properly check the return value
 303  * from NdisAllocatePacket() and NdisAllocateBuffer() and will
 304  * sometimes allocate few more buffers/packets that they originally
 305  * requested when they created the pool. To prevent this from being
 306  * a problem, we allocate a few extra buffers/packets beyond what
 307  * the driver asks for. This #define controls how many.
 308  */
 309 #define NDIS_POOL_EXTRA         16
 310
 311 int
 312 ndis_libinit()
 313 {
 314         image_patch_table       *patch;
 315
 316         strcpy(ndis_filepath, "/compat/ndis");
 317
 318         patch = ndis_functbl;
 319         while (patch->ipt_func != NULL) {
 320                 windrv_wrap((funcptr)patch->ipt_func,
 321                     (funcptr *)&patch->ipt_wrap,
 322                     patch->ipt_argcnt, patch->ipt_ftype);
 323                 patch++;
 324         }
 325
 326         return (0);
 327 }
 328
 329 int
 330 ndis_libfini()
 331 {
 332         image_patch_table       *patch;
 333
 334         patch = ndis_functbl;
 335         while (patch->ipt_func != NULL) {
 336                 windrv_unwrap(patch->ipt_wrap);
 337                 patch++;
 338         }
 339
 340         return (0);
 341 }
 342
 343 static funcptr
 344 ndis_findwrap(func)
 345         funcptr                 func;
 346 {
 347         image_patch_table       *patch;
 348
 349         patch = ndis_functbl;
 350         while (patch->ipt_func != NULL) {
 351                 if ((funcptr)patch->ipt_func == func)
 352                         return ((funcptr)patch->ipt_wrap);
 353                 patch++;
 354         }
 355
 356         return (NULL);
 357 }
 358
 359 /*
 360  * This routine does the messy Windows Driver Model device attachment
 361  * stuff on behalf of NDIS drivers. We register our own AddDevice
 362  * routine here
 363  */
 364 static void
 365 NdisInitializeWrapper(wrapper, drv, path, unused)
 366         ndis_handle             *wrapper;
 367         driver_object           *drv;
 368         void                    *path;
 369         void                    *unused;
 370 {
 371         /*
 372          * As of yet, I haven't come up with a compelling
 373          * reason to define a private NDIS wrapper structure,
 374          * so we use a pointer to the driver object as the
 375          * wrapper handle. The driver object has the miniport
 376          * characteristics struct for this driver hung off it
 377          * via IoAllocateDriverObjectExtension(), and that's
 378          * really all the private data we need.
 379          */
 380
 381         *wrapper = drv;
 382
 383         /*
 384          * If this was really Windows, we'd be registering dispatch
 385          * routines for the NDIS miniport module here, but we're
 386          * not Windows so all we really need to do is set up an
 387          * AddDevice function that'll be invoked when a new device
 388          * instance appears.
 389          */
 390
 391         drv->dro_driverext->dre_adddevicefunc = NdisAddDevice;
 392 }
 393
 394 static void
 395 NdisTerminateWrapper(handle, syspec)
 396         ndis_handle             handle;
 397         void                    *syspec;
 398 {
 399         /* Nothing to see here, move along. */
 400 }
 401
 402 static ndis_status
 403 NdisMRegisterMiniport(handle, characteristics, len)
 404         ndis_handle             handle;
 405         ndis_miniport_characteristics *characteristics;
 406         int                     len;
 407 {
 408         ndis_miniport_characteristics   *ch = NULL;
 409         driver_object           *drv;
 410
 411         drv = (driver_object *)handle;
 412
 413         /*
 414          * We need to save the NDIS miniport characteristics
 415          * somewhere. This data is per-driver, not per-device
 416          * (all devices handled by the same driver have the
 417          * same characteristics) so we hook it onto the driver
 418          * object using IoAllocateDriverObjectExtension().
 419          * The extra extension info is automagically deleted when
 420          * the driver is unloaded (see windrv_unload()).
 421          */
 422
 423         if (IoAllocateDriverObjectExtension(drv, (void *)1,
 424             sizeof(ndis_miniport_characteristics), (void **)&ch) !=
 425             STATUS_SUCCESS) {
 426                 return (NDIS_STATUS_RESOURCES);
 427         }
 428
 429         bzero((char *)ch, sizeof(ndis_miniport_characteristics));
 430
 431         bcopy((char *)characteristics, (char *)ch, len);
 432
 433         if (ch->nmc_version_major < 5 || ch->nmc_version_minor < 1) {
 434                 ch->nmc_shutdown_handler = NULL;
 435                 ch->nmc_canceltxpkts_handler = NULL;
 436                 ch->nmc_pnpevent_handler = NULL;
 437         }
 438
 439         return (NDIS_STATUS_SUCCESS);
 440 }
 441
 442 static ndis_status
 443 NdisAllocateMemoryWithTag(vaddr, len, tag)
 444         void                    **vaddr;
 445         uint32_t                len;
 446         uint32_t                tag;
 447 {
 448         void                    *mem;
 449
 450         mem = ExAllocatePoolWithTag(NonPagedPool, len, tag);
 451         if (mem == NULL) {
 452                 return (NDIS_STATUS_RESOURCES);
 453         }
 454         *vaddr = mem;
 455
 456         return (NDIS_STATUS_SUCCESS);
 457 }
 458
 459 static ndis_status
 460 NdisAllocateMemory(vaddr, len, flags, highaddr)
 461         void                    **vaddr;
 462         uint32_t                len;
 463         uint32_t                flags;
 464         ndis_physaddr           highaddr;
 465 {
 466         void                    *mem;
 467
 468         mem = ExAllocatePoolWithTag(NonPagedPool, len, 0);
 469         if (mem == NULL)
 470                 return (NDIS_STATUS_RESOURCES);
 471         *vaddr = mem;
 472
 473         return (NDIS_STATUS_SUCCESS);
 474 }
 475
 476 static void
 477 NdisFreeMemory(vaddr, len, flags)
 478         void                    *vaddr;
 479         uint32_t                len;
 480         uint32_t                flags;
 481 {
 482         if (len == 0)
 483                 return;
 484
 485         ExFreePool(vaddr);
 486 }
 487
 488 static ndis_status
 489 NdisMSetAttributesEx(adapter_handle, adapter_ctx, hangsecs,
 490                         flags, iftype)
 491         ndis_handle                     adapter_handle;
 492         ndis_handle                     adapter_ctx;
 493         uint32_t                        hangsecs;
 494         uint32_t                        flags;
 495         ndis_interface_type             iftype;
 496 {
 497         ndis_miniport_block             *block;
 498
 499         /*
 500          * Save the adapter context, we need it for calling
 501          * the driver's internal functions.
 502          */
 503         block = (ndis_miniport_block *)adapter_handle;
 504         block->nmb_miniportadapterctx = adapter_ctx;
 505         block->nmb_checkforhangsecs = hangsecs;
 506         block->nmb_flags = flags;
 507
 508         return (NDIS_STATUS_SUCCESS);
 509 }
 510
 511 static void
 512 NdisOpenConfiguration(status, cfg, wrapctx)
 513         ndis_status             *status;
 514         ndis_handle             *cfg;
 515         ndis_handle             wrapctx;
 516 {
 517         *cfg = wrapctx;
 518         *status = NDIS_STATUS_SUCCESS;
 519 }
 520
 521 static void
 522 NdisOpenConfigurationKeyByName(status, cfg, subkey, subhandle)
 523         ndis_status             *status;
 524         ndis_handle             cfg;
 525         unicode_string          *subkey;
 526         ndis_handle             *subhandle;
 527 {
 528         *subhandle = cfg;
 529         *status = NDIS_STATUS_SUCCESS;
 530 }
 531
 532 static void
 533 NdisOpenConfigurationKeyByIndex(status, cfg, idx, subkey, subhandle)
 534         ndis_status             *status;
 535         ndis_handle             cfg;
 536         uint32_t                idx;
 537         unicode_string          *subkey;
 538         ndis_handle             *subhandle;
 539 {
 540         *status = NDIS_STATUS_FAILURE;
 541 }
 542
 543 static ndis_status
 544 ndis_encode_parm(block, oid, type, parm)
 545         ndis_miniport_block     *block;
 546         struct sysctl_oid       *oid;
 547         ndis_parm_type          type;
 548         ndis_config_parm        **parm;
 549 {
 550         ndis_config_parm        *p;
 551         ndis_parmlist_entry     *np;
 552         unicode_string          *us;
 553         ansi_string             as;
 554         int                     base = 0;
 555         uint32_t                val;
 556         char                    tmp[32];
 557
 558         np = ExAllocatePoolWithTag(NonPagedPool,
 559             sizeof(ndis_parmlist_entry), 0);
 560         if (np == NULL)
 561                 return (NDIS_STATUS_RESOURCES);
 562         InsertHeadList((&block->nmb_parmlist), (&np->np_list));
 563         *parm = p = &np->np_parm;
 564
 565         switch(type) {
 566         case ndis_parm_string:
 567                 /* See if this might be a number. */
 568                 val = strtoul((char *)oid->oid_arg1, NULL, 10);
 569                 us = &p->ncp_parmdata.ncp_stringdata;
 570                 p->ncp_type = ndis_parm_string;
 571                 if (val) {
 572                         snprintf(tmp, 32, "%x", val);
 573                         RtlInitAnsiString(&as, tmp);
 574                 } else {
 575                         RtlInitAnsiString(&as, (char *)oid->oid_arg1);
 576                 }
 577
 578                 if (RtlAnsiStringToUnicodeString(us, &as, TRUE)) {
 579                         ExFreePool(np);
 580                         return (NDIS_STATUS_RESOURCES);
 581                 }
 582                 break;
 583         case ndis_parm_int:
 584                 if (strncmp((char *)oid->oid_arg1, "0x", 2) == 0)
 585                         base = 16;
 586                 else
 587                         base = 10;
 588                 p->ncp_type = ndis_parm_int;
 589                 p->ncp_parmdata.ncp_intdata =
 590                     strtol((char *)oid->oid_arg1, NULL, base);
 591                 break;
 592         case ndis_parm_hexint:
 593 #ifdef notdef
 594                 if (strncmp((char *)oid->oid_arg1, "0x", 2) == 0)
 595                         base = 16;
 596                 else
 597                         base = 10;
 598 #endif
 599                 base = 16;
 600                 p->ncp_type = ndis_parm_hexint;
 601                 p->ncp_parmdata.ncp_intdata =
 602                     strtoul((char *)oid->oid_arg1, NULL, base);
 603                 break;
 604         default:
 605                 return (NDIS_STATUS_FAILURE);
 606                 break;
 607         }
 608
 609         return (NDIS_STATUS_SUCCESS);
 610 }
 611
 612 static void
 613 NdisReadConfiguration(status, parm, cfg, key, type)
 614         ndis_status             *status;
 615         ndis_config_parm        **parm;
 616         ndis_handle             cfg;
 617         unicode_string          *key;
 618         ndis_parm_type          type;
 619 {
 620         char                    *keystr = NULL;
 621         ndis_miniport_block     *block;
 622         struct ndis_softc       *sc;
 623         struct sysctl_oid       *oidp;
 624         struct sysctl_ctx_entry *e;
 625         ansi_string             as;
 626
 627         block = (ndis_miniport_block *)cfg;
 628         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 629
 630         if (key->us_len == 0 || key->us_buf == NULL) {
 631                 *status = NDIS_STATUS_FAILURE;
 632                 return;
 633         }
 634
 635         if (RtlUnicodeStringToAnsiString(&as, key, TRUE)) {
 636                 *status = NDIS_STATUS_RESOURCES;
 637                 return;
 638         }
 639
 640         keystr = as.as_buf;
 641
 642         /*
 643          * See if registry key is already in a list of known keys
 644          * included with the driver.
 645          */
 646         TAILQ_FOREACH(e, device_get_sysctl_ctx(sc->ndis_dev), link) {
 647                 oidp = e->entry;
 648                 if (strcasecmp(oidp->oid_name, keystr) == 0) {
 649                         if (strcmp((char *)oidp->oid_arg1, "UNSET") == 0) {
 650                                 RtlFreeAnsiString(&as);
 651                                 *status = NDIS_STATUS_FAILURE;
 652                                 return;
 653                         }
 654
 655                         *status = ndis_encode_parm(block, oidp, type, parm);
 656                         RtlFreeAnsiString(&as);
 657                         return;
 658                 }
 659         }
 660
 661         /*
 662          * If the key didn't match, add it to the list of dynamically
 663          * created ones. Sometimes, drivers refer to registry keys
 664          * that aren't documented in their .INF files. These keys
 665          * are supposed to be created by some sort of utility or
 666          * control panel snap-in that comes with the driver software.
 667          * Sometimes it's useful to be able to manipulate these.
 668          * If the driver requests the key in the form of a string,
 669          * make its default value an empty string, otherwise default
 670          * it to "0".
 671          */
 672
 673         if (type == ndis_parm_int || type == ndis_parm_hexint)
 674                 ndis_add_sysctl(sc, keystr, "(dynamic integer key)",
 675                     "UNSET", CTLFLAG_RW);
 676         else
 677                 ndis_add_sysctl(sc, keystr, "(dynamic string key)",
 678                     "UNSET", CTLFLAG_RW);
 679
 680         RtlFreeAnsiString(&as);
 681         *status = NDIS_STATUS_FAILURE;
 682 }
 683
 684 static ndis_status
 685 ndis_decode_parm(block, parm, val)
 686         ndis_miniport_block     *block;
 687         ndis_config_parm        *parm;
 688         char                    *val;
 689 {
 690         unicode_string          *ustr;
 691         ansi_string             as;
 692
 693         switch(parm->ncp_type) {
 694         case ndis_parm_string:
 695                 ustr = &parm->ncp_parmdata.ncp_stringdata;
 696                 if (RtlUnicodeStringToAnsiString(&as, ustr, TRUE))
 697                         return (NDIS_STATUS_RESOURCES);
 698                 bcopy(as.as_buf, val, as.as_len);
 699                 RtlFreeAnsiString(&as);
 700                 break;
 701         case ndis_parm_int:
 702                 sprintf(val, "%d", parm->ncp_parmdata.ncp_intdata);
 703                 break;
 704         case ndis_parm_hexint:
 705                 sprintf(val, "%xu", parm->ncp_parmdata.ncp_intdata);
 706                 break;
 707         default:
 708                 return (NDIS_STATUS_FAILURE);
 709                 break;
 710         }
 711         return (NDIS_STATUS_SUCCESS);
 712 }
 713
 714 static void
 715 NdisWriteConfiguration(status, cfg, key, parm)
 716         ndis_status             *status;
 717         ndis_handle             cfg;
 718         unicode_string          *key;
 719         ndis_config_parm        *parm;
 720 {
 721         ansi_string             as;
 722         char                    *keystr = NULL;
 723         ndis_miniport_block     *block;
 724         struct ndis_softc       *sc;
 725         struct sysctl_oid       *oidp;
 726         struct sysctl_ctx_entry *e;
 727         char                    val[256];
 728
 729         block = (ndis_miniport_block *)cfg;
 730         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 731
 732         if (RtlUnicodeStringToAnsiString(&as, key, TRUE)) {
 733                 *status = NDIS_STATUS_RESOURCES;
 734                 return;
 735         }
 736
 737         keystr = as.as_buf;
 738
 739         /* Decode the parameter into a string. */
 740         bzero(val, sizeof(val));
 741         *status = ndis_decode_parm(block, parm, val);
 742         if (*status != NDIS_STATUS_SUCCESS) {
 743                 RtlFreeAnsiString(&as);
 744                 return;
 745         }
 746
 747         /* See if the key already exists. */
 748
 749         TAILQ_FOREACH(e, device_get_sysctl_ctx(sc->ndis_dev), link) {
 750                 oidp = e->entry;
 751                 if (strcasecmp(oidp->oid_name, keystr) == 0) {
 752                         /* Found it, set the value. */
 753                         strcpy((char *)oidp->oid_arg1, val);
 754                         RtlFreeAnsiString(&as);
 755                         return;
 756                 }
 757         }
 758
 759         /* Not found, add a new key with the specified value. */
 760         ndis_add_sysctl(sc, keystr, "(dynamically set key)",
 761                     val, CTLFLAG_RW);
 762
 763         RtlFreeAnsiString(&as);
 764         *status = NDIS_STATUS_SUCCESS;
 765 }
 766
 767 static void
 768 NdisCloseConfiguration(cfg)
 769         ndis_handle             cfg;
 770 {
 771         list_entry              *e;
 772         ndis_parmlist_entry     *pe;
 773         ndis_miniport_block     *block;
 774         ndis_config_parm        *p;
 775
 776         block = (ndis_miniport_block *)cfg;
 777
 778         while (!IsListEmpty(&block->nmb_parmlist)) {
 779                 e = RemoveHeadList(&block->nmb_parmlist);
 780                 pe = CONTAINING_RECORD(e, ndis_parmlist_entry, np_list);
 781                 p = &pe->np_parm;
 782                 if (p->ncp_type == ndis_parm_string)
 783                         RtlFreeUnicodeString(&p->ncp_parmdata.ncp_stringdata);
 784                 ExFreePool(e);
 785         }
 786 }
 787
 788 /*
 789  * Initialize a Windows spinlock.
 790  */
 791 static void
 792 NdisAllocateSpinLock(lock)
 793         ndis_spin_lock          *lock;
 794 {
 795         KeInitializeSpinLock(&lock->nsl_spinlock);
 796         lock->nsl_kirql = 0;
 797 }
 798
 799 /*
 800  * Destroy a Windows spinlock. This is a no-op for now. There are two reasons
 801  * for this. One is that it's sort of superfluous: we don't have to do anything
 802  * special to deallocate the spinlock. The other is that there are some buggy
 803  * drivers which call NdisFreeSpinLock() _after_ calling NdisFreeMemory() on
 804  * the block of memory in which the spinlock resides. (Yes, ADMtek, I'm
 805  * talking to you.)
 806  */
 807 static void
 808 NdisFreeSpinLock(lock)
 809         ndis_spin_lock          *lock;
 810 {
 811 #ifdef notdef
 812         KeInitializeSpinLock(&lock->nsl_spinlock);
 813         lock->nsl_kirql = 0;
 814 #endif
 815 }
 816
 817 /*
 818  * Acquire a spinlock from IRQL <= DISPATCH_LEVEL.
 819  */
 820
 821 static void
 822 NdisAcquireSpinLock(lock)
 823         ndis_spin_lock          *lock;
 824 {
 825         KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
 826 }
 827
 828 /*
 829  * Release a spinlock from IRQL == DISPATCH_LEVEL.
 830  */
 831
 832 static void
 833 NdisReleaseSpinLock(lock)
 834         ndis_spin_lock          *lock;
 835 {
 836         KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
 837 }
 838
 839 /*
 840  * Acquire a spinlock when already running at IRQL == DISPATCH_LEVEL.
 841  */
 842 static void
 843 NdisDprAcquireSpinLock(lock)
 844         ndis_spin_lock          *lock;
 845 {
 846         KeAcquireSpinLockAtDpcLevel(&lock->nsl_spinlock);
 847 }
 848
 849 /*
 850  * Release a spinlock without leaving IRQL == DISPATCH_LEVEL.
 851  */
 852 static void
 853 NdisDprReleaseSpinLock(lock)
 854         ndis_spin_lock          *lock;
 855 {
 856         KeReleaseSpinLockFromDpcLevel(&lock->nsl_spinlock);
 857 }
 858
 859 static void
 860 NdisInitializeReadWriteLock(lock)
 861         ndis_rw_lock            *lock;
 862 {
 863         KeInitializeSpinLock(&lock->nrl_spinlock);
 864         bzero((char *)&lock->nrl_rsvd, sizeof(lock->nrl_rsvd));
 865 }
 866
 867 static void
 868 NdisAcquireReadWriteLock(ndis_rw_lock *lock, uint8_t writeacc,
 869     ndis_lock_state *state)
 870 {
 871         if (writeacc == TRUE) {
 872                 KeAcquireSpinLock(&lock->nrl_spinlock, &state->nls_oldirql);
 873                 lock->nrl_rsvd[0]++;
 874         } else
 875                 lock->nrl_rsvd[1]++;
 876 }
 877
 878 static void
 879 NdisReleaseReadWriteLock(lock, state)
 880         ndis_rw_lock            *lock;
 881         ndis_lock_state         *state;
 882 {
 883         if (lock->nrl_rsvd[0]) {
 884                 lock->nrl_rsvd[0]--;
 885                 KeReleaseSpinLock(&lock->nrl_spinlock, state->nls_oldirql);
 886         } else
 887                 lock->nrl_rsvd[1]--;
 888 }
 889
 890 static uint32_t
 891 NdisReadPciSlotInformation(adapter, slot, offset, buf, len)
 892         ndis_handle             adapter;
 893         uint32_t                slot;
 894         uint32_t                offset;
 895         void                    *buf;
 896         uint32_t                len;
 897 {
 898         ndis_miniport_block     *block;
 899         uint32_t                i;
 900         char                    *dest;
 901         device_t                dev;
 902
 903         block = (ndis_miniport_block *)adapter;
 904         dest = buf;
 905         if (block == NULL)
 906                 return (0);
 907
 908         dev = block->nmb_physdeviceobj->do_devext;
 909
 910         /*
 911          * I have a test system consisting of a Sun w2100z
 912          * dual 2.4Ghz Opteron machine and an Atheros 802.11a/b/g
 913          * "Aries" miniPCI NIC. (The NIC is installed in the
 914          * machine using a miniPCI to PCI bus adapter card.)
 915          * When running in SMP mode, I found that
 916          * performing a large number of consecutive calls to
 917          * NdisReadPciSlotInformation() would result in a
 918          * sudden system reset (or in some cases a freeze).
 919          * My suspicion is that the multiple reads are somehow
 920          * triggering a fatal PCI bus error that leads to a
 921          * machine check. The 1us delay in the loop below
 922          * seems to prevent this problem.
 923          */
 924
 925         for (i = 0; i < len; i++) {
 926                 DELAY(1);
 927                 dest[i] = pci_read_config(dev, i + offset, 1);
 928         }
 929
 930         return (len);
 931 }
 932
 933 static uint32_t
 934 NdisWritePciSlotInformation(adapter, slot, offset, buf, len)
 935         ndis_handle             adapter;
 936         uint32_t                slot;
 937         uint32_t                offset;
 938         void                    *buf;
 939         uint32_t                len;
 940 {
 941         ndis_miniport_block     *block;
 942         uint32_t                i;
 943         char                    *dest;
 944         device_t                dev;
 945
 946         block = (ndis_miniport_block *)adapter;
 947         dest = buf;
 948
 949         if (block == NULL)
 950                 return (0);
 951
 952         dev = block->nmb_physdeviceobj->do_devext;
 953         for (i = 0; i < len; i++) {
 954                 DELAY(1);
 955                 pci_write_config(dev, i + offset, dest[i], 1);
 956         }
 957
 958         return (len);
 959 }
 960
 961 /*
 962  * The errorlog routine uses a variable argument list, so we
 963  * have to declare it this way.
 964  */
 965
 966 #define ERRMSGLEN 512
 967 static void
 968 NdisWriteErrorLogEntry(ndis_handle adapter, ndis_error_code code,
 969         uint32_t numerrors, ...)
 970 {
 971         ndis_miniport_block     *block;
 972         va_list                 ap;
 973         int                     i, error;
 974         char                    *str = NULL;
 975         uint16_t                flags;
 976         device_t                dev;
 977         driver_object           *drv;
 978         struct ndis_softc       *sc;
 979         struct ifnet            *ifp;
 980         unicode_string          us;
 981         ansi_string             as = { 0, 0, NULL };
 982
 983         block = (ndis_miniport_block *)adapter;
 984         dev = block->nmb_physdeviceobj->do_devext;
 985         drv = block->nmb_deviceobj->do_drvobj;
 986         sc = device_get_softc(dev);
 987         ifp = sc->ifp;
 988
 989         if (ifp != NULL && ifp->if_flags & IFF_DEBUG) {
 990                 error = pe_get_message((vm_offset_t)drv->dro_driverstart,
 991                     code, &str, &i, &flags);
 992                 if (error == 0) {
 993                         if (flags & MESSAGE_RESOURCE_UNICODE) {
 994                                 RtlInitUnicodeString(&us, (uint16_t *)str);
 995                                 if (RtlUnicodeStringToAnsiString(&as,
 996                                     &us, TRUE) == STATUS_SUCCESS)
 997                                         str = as.as_buf;
 998                                 else
 999                                         str = NULL;
1000                         }
1001                 }
1002         }
1003
1004         device_printf(dev, "NDIS ERROR: %x (%s)\n", code,
1005             str == NULL ? "unknown error" : str);
1006
1007         if (ifp != NULL && ifp->if_flags & IFF_DEBUG) {
1008                 device_printf(dev, "NDIS NUMERRORS: %x\n", numerrors);
1009                 va_start(ap, numerrors);
1010                 for (i = 0; i < numerrors; i++)
1011                         device_printf(dev, "argptr: %p\n",
1012                             va_arg(ap, void *));
1013                 va_end(ap);
1014         }
1015
1016         if (as.as_len)
1017                 RtlFreeAnsiString(&as);
1018 }
1019
1020 static void
1021 ndis_map_cb(arg, segs, nseg, error)
1022         void                    *arg;
1023         bus_dma_segment_t       *segs;
1024         int                     nseg;
1025         int                     error;
1026 {
1027         struct ndis_map_arg     *ctx;
1028         int                     i;
1029
1030         if (error)
1031                 return;
1032
1033         ctx = arg;
1034
1035         for (i = 0; i < nseg; i++) {
1036                 ctx->nma_fraglist[i].npu_physaddr.np_quad = segs[i].ds_addr;
1037                 ctx->nma_fraglist[i].npu_len = segs[i].ds_len;
1038         }
1039
1040         ctx->nma_cnt = nseg;
1041 }
1042
1043 static void
1044 NdisMStartBufferPhysicalMapping(ndis_handle adapter, ndis_buffer *buf,
1045     uint32_t mapreg, uint8_t writedev, ndis_paddr_unit *addrarray,
1046     uint32_t *arraysize)
1047 {
1048         ndis_miniport_block     *block;
1049         struct ndis_softc       *sc;
1050         struct ndis_map_arg     nma;
1051         bus_dmamap_t            map;
1052         int                     error;
1053
1054         if (adapter == NULL)
1055                 return;
1056
1057         block = (ndis_miniport_block *)adapter;
1058         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1059
1060         if (mapreg > sc->ndis_mmapcnt)
1061                 return;
1062
1063         map = sc->ndis_mmaps[mapreg];
1064         nma.nma_fraglist = addrarray;
1065
1066         error = bus_dmamap_load(sc->ndis_mtag, map,
1067             MmGetMdlVirtualAddress(buf), MmGetMdlByteCount(buf), ndis_map_cb,
1068             (void *)&nma, BUS_DMA_NOWAIT);
1069
1070         if (error)
1071                 return;
1072
1073         bus_dmamap_sync(sc->ndis_mtag, map,
1074             writedev ? BUS_DMASYNC_PREWRITE : BUS_DMASYNC_PREREAD);
1075
1076         *arraysize = nma.nma_cnt;
1077 }
1078
1079 static void
1080 NdisMCompleteBufferPhysicalMapping(adapter, buf, mapreg)
1081         ndis_handle             adapter;
1082         ndis_buffer             *buf;
1083         uint32_t                mapreg;
1084 {
1085         ndis_miniport_block     *block;
1086         struct ndis_softc       *sc;
1087         bus_dmamap_t            map;
1088
1089         if (adapter == NULL)
1090                 return;
1091
1092         block = (ndis_miniport_block *)adapter;
1093         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1094
1095         if (mapreg > sc->ndis_mmapcnt)
1096                 return;
1097
1098         map = sc->ndis_mmaps[mapreg];
1099
1100         bus_dmamap_sync(sc->ndis_mtag, map,
1101             BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
1102
1103         bus_dmamap_unload(sc->ndis_mtag, map);
1104 }
1105
1106 /*
1107  * This is an older (?) timer init routine which doesn't
1108  * accept a miniport context handle. Serialized miniports should
1109  * never call this function.
1110  */
1111
1112 static void
1113 NdisInitializeTimer(timer, func, ctx)
1114         ndis_timer              *timer;
1115         ndis_timer_function     func;
1116         void                    *ctx;
1117 {
1118         KeInitializeTimer(&timer->nt_ktimer);
1119         KeInitializeDpc(&timer->nt_kdpc, func, ctx);
1120         KeSetImportanceDpc(&timer->nt_kdpc, KDPC_IMPORTANCE_LOW);
1121 }
1122
1123 static void
1124 ndis_timercall(dpc, timer, sysarg1, sysarg2)
1125         kdpc                    *dpc;
1126         ndis_miniport_timer     *timer;
1127         void                    *sysarg1;
1128         void                    *sysarg2;
1129 {
1130         /*
1131          * Since we're called as a DPC, we should be running
1132          * at DISPATCH_LEVEL here. This means to acquire the
1133          * spinlock, we can use KeAcquireSpinLockAtDpcLevel()
1134          * rather than KeAcquireSpinLock().
1135          */
1136         if (NDIS_SERIALIZED(timer->nmt_block))
1137                 KeAcquireSpinLockAtDpcLevel(&timer->nmt_block->nmb_lock);
1138
1139         MSCALL4(timer->nmt_timerfunc, dpc, timer->nmt_timerctx,
1140             sysarg1, sysarg2);
1141
1142         if (NDIS_SERIALIZED(timer->nmt_block))
1143                 KeReleaseSpinLockFromDpcLevel(&timer->nmt_block->nmb_lock);
1144 }
1145
1146 /*
1147  * For a long time I wondered why there were two NDIS timer initialization
1148  * routines, and why this one needed an NDIS_MINIPORT_TIMER and the
1149  * MiniportAdapterHandle. The NDIS_MINIPORT_TIMER has its own callout
1150  * function and context pointers separate from those in the DPC, which
1151  * allows for another level of indirection: when the timer fires, we
1152  * can have our own timer function invoked, and from there we can call
1153  * the driver's function. But why go to all that trouble? Then it hit
1154  * me: for serialized miniports, the timer callouts are not re-entrant.
1155  * By trapping the callouts and having access to the MiniportAdapterHandle,
1156  * we can protect the driver callouts by acquiring the NDIS serialization
1157  * lock. This is essential for allowing serialized miniports to work
1158  * correctly on SMP systems. On UP hosts, setting IRQL to DISPATCH_LEVEL
1159  * is enough to prevent other threads from pre-empting you, but with
1160  * SMP, you must acquire a lock as well, otherwise the other CPU is
1161  * free to clobber you.
1162  */
1163 static void
1164 NdisMInitializeTimer(timer, handle, func, ctx)
1165         ndis_miniport_timer     *timer;
1166         ndis_handle             handle;
1167         ndis_timer_function     func;
1168         void                    *ctx;
1169 {
1170         ndis_miniport_block     *block;
1171         struct ndis_softc       *sc;
1172
1173         block = (ndis_miniport_block *)handle;
1174         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1175
1176         /* Save the driver's funcptr and context */
1177
1178         timer->nmt_timerfunc = func;
1179         timer->nmt_timerctx = ctx;
1180         timer->nmt_block = handle;
1181
1182         /*
1183          * Set up the timer so it will call our intermediate DPC.
1184          * Be sure to use the wrapped entry point, since
1185          * ntoskrnl_run_dpc() expects to invoke a function with
1186          * Microsoft calling conventions.
1187          */
1188         KeInitializeTimer(&timer->nmt_ktimer);
1189         KeInitializeDpc(&timer->nmt_kdpc,
1190             ndis_findwrap((funcptr)ndis_timercall), timer);
1191         timer->nmt_ktimer.k_dpc = &timer->nmt_kdpc;
1192 }
1193
1194 /*
1195  * In Windows, there's both an NdisMSetTimer() and an NdisSetTimer(),
1196  * but the former is just a macro wrapper around the latter.
1197  */
1198 static void
1199 NdisSetTimer(timer, msecs)
1200         ndis_timer              *timer;
1201         uint32_t                msecs;
1202 {
1203         /*
1204          * KeSetTimer() wants the period in
1205          * hundred nanosecond intervals.
1206          */
1207         KeSetTimer(&timer->nt_ktimer,
1208             ((int64_t)msecs * -10000), &timer->nt_kdpc);
1209 }
1210
1211 static void
1212 NdisMSetPeriodicTimer(timer, msecs)
1213         ndis_miniport_timer     *timer;
1214         uint32_t                msecs;
1215 {
1216         KeSetTimerEx(&timer->nmt_ktimer,
1217             ((int64_t)msecs * -10000), msecs, &timer->nmt_kdpc);
1218 }
1219
1220 /*
1221  * Technically, this is really NdisCancelTimer(), but we also
1222  * (ab)use it for NdisMCancelTimer(), since in our implementation
1223  * we don't need the extra info in the ndis_miniport_timer
1224  * structure just to cancel a timer.
1225  */
1226
1227 static void
1228 NdisMCancelTimer(timer, cancelled)
1229         ndis_timer              *timer;
1230         uint8_t                 *cancelled;
1231 {
1232
1233         *cancelled = KeCancelTimer(&timer->nt_ktimer);
1234 }
1235
1236 static void
1237 NdisMQueryAdapterResources(status, adapter, list, buflen)
1238         ndis_status             *status;
1239         ndis_handle             adapter;
1240         ndis_resource_list      *list;
1241         uint32_t                *buflen;
1242 {
1243         ndis_miniport_block     *block;
1244         struct ndis_softc       *sc;
1245         int                     rsclen;
1246
1247         block = (ndis_miniport_block *)adapter;
1248         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1249
1250         rsclen = sizeof(ndis_resource_list) +
1251             (sizeof(cm_partial_resource_desc) * (sc->ndis_rescnt - 1));
1252         if (*buflen < rsclen) {
1253                 *buflen = rsclen;
1254                 *status = NDIS_STATUS_INVALID_LENGTH;
1255                 return;
1256         }
1257
1258         bcopy((char *)block->nmb_rlist, (char *)list, rsclen);
1259         *status = NDIS_STATUS_SUCCESS;
1260 }
1261
1262 static ndis_status
1263 NdisMRegisterIoPortRange(offset, adapter, port, numports)
1264         void                    **offset;
1265         ndis_handle             adapter;
1266         uint32_t                port;
1267         uint32_t                numports;
1268 {
1269         struct ndis_miniport_block      *block;
1270         struct ndis_softc       *sc;
1271
1272         if (adapter == NULL)
1273                 return (NDIS_STATUS_FAILURE);
1274
1275         block = (ndis_miniport_block *)adapter;
1276         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1277
1278         if (sc->ndis_res_io == NULL)
1279                 return (NDIS_STATUS_FAILURE);
1280
1281         /* Don't let the device map more ports than we have. */
1282         if (rman_get_size(sc->ndis_res_io) < numports)
1283                 return (NDIS_STATUS_INVALID_LENGTH);
1284
1285         *offset = (void *)rman_get_start(sc->ndis_res_io);
1286
1287         return (NDIS_STATUS_SUCCESS);
1288 }
1289
1290 static void
1291 NdisMDeregisterIoPortRange(adapter, port, numports, offset)
1292         ndis_handle             adapter;
1293         uint32_t                port;
1294         uint32_t                numports;
1295         void                    *offset;
1296 {
1297 }
1298
1299 static void
1300 NdisReadNetworkAddress(status, addr, addrlen, adapter)
1301         ndis_status             *status;
1302         void                    **addr;
1303         uint32_t                *addrlen;
1304         ndis_handle             adapter;
1305 {
1306         struct ndis_softc       *sc;
1307         ndis_miniport_block     *block;
1308         uint8_t                 empty[] = { 0, 0, 0, 0, 0, 0 };
1309
1310         block = (ndis_miniport_block *)adapter;
1311         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1312         if (sc->ifp == NULL) {
1313                 *status = NDIS_STATUS_FAILURE;
1314                 return;
1315         }
1316
1317         if (sc->ifp->if_addr == NULL ||
1318             bcmp(IF_LLADDR(sc->ifp), empty, ETHER_ADDR_LEN) == 0)
1319                 *status = NDIS_STATUS_FAILURE;
1320         else {
1321                 *addr = IF_LLADDR(sc->ifp);
1322                 *addrlen = ETHER_ADDR_LEN;
1323                 *status = NDIS_STATUS_SUCCESS;
1324         }
1325 }
1326
1327 static ndis_status
1328 NdisQueryMapRegisterCount(bustype, cnt)
1329         uint32_t                bustype;
1330         uint32_t                *cnt;
1331 {
1332         *cnt = 8192;
1333         return (NDIS_STATUS_SUCCESS);
1334 }
1335
1336 static ndis_status
1337 NdisMAllocateMapRegisters(ndis_handle adapter, uint32_t dmachannel,
1338     uint8_t dmasize, uint32_t physmapneeded, uint32_t maxmap)
1339 {
1340         struct ndis_softc       *sc;
1341         ndis_miniport_block     *block;
1342         int                     error, i, nseg = NDIS_MAXSEG;
1343
1344         block = (ndis_miniport_block *)adapter;
1345         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1346
1347         sc->ndis_mmaps = malloc(sizeof(bus_dmamap_t) * physmapneeded,
1348             M_DEVBUF, M_NOWAIT|M_ZERO);
1349
1350         if (sc->ndis_mmaps == NULL)
1351                 return (NDIS_STATUS_RESOURCES);
1352
1353         error = bus_dma_tag_create(sc->ndis_parent_tag, ETHER_ALIGN, 0,
1354             BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL,
1355             NULL, maxmap * nseg, nseg, maxmap, BUS_DMA_ALLOCNOW,
1356             NULL, NULL, &sc->ndis_mtag);
1357
1358         if (error) {
1359                 free(sc->ndis_mmaps, M_DEVBUF);
1360                 return (NDIS_STATUS_RESOURCES);
1361         }
1362
1363         for (i = 0; i < physmapneeded; i++)
1364                 bus_dmamap_create(sc->ndis_mtag, 0, &sc->ndis_mmaps[i]);
1365
1366         sc->ndis_mmapcnt = physmapneeded;
1367
1368         return (NDIS_STATUS_SUCCESS);
1369 }
1370
1371 static void
1372 NdisMFreeMapRegisters(adapter)
1373         ndis_handle             adapter;
1374 {
1375         struct ndis_softc       *sc;
1376         ndis_miniport_block     *block;
1377         int                     i;
1378
1379         block = (ndis_miniport_block *)adapter;
1380         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1381
1382         for (i = 0; i < sc->ndis_mmapcnt; i++)
1383                 bus_dmamap_destroy(sc->ndis_mtag, sc->ndis_mmaps[i]);
1384
1385         free(sc->ndis_mmaps, M_DEVBUF);
1386
1387         bus_dma_tag_destroy(sc->ndis_mtag);
1388 }
1389
1390 static void
1391 ndis_mapshared_cb(arg, segs, nseg, error)
1392         void                    *arg;
1393         bus_dma_segment_t       *segs;
1394         int                     nseg;
1395         int                     error;
1396 {
1397         ndis_physaddr           *p;
1398
1399         if (error || nseg > 1)
1400                 return;
1401
1402         p = arg;
1403
1404         p->np_quad = segs[0].ds_addr;
1405 }
1406
1407 /*
1408  * This maps to bus_dmamem_alloc().
1409  */
1410
1411 static void
1412 NdisMAllocateSharedMemory(ndis_handle adapter, uint32_t len, uint8_t cached,
1413     void **vaddr, ndis_physaddr *paddr)
1414 {
1415         ndis_miniport_block     *block;
1416         struct ndis_softc       *sc;
1417         struct ndis_shmem       *sh;
1418         int                     error;
1419
1420         if (adapter == NULL)
1421                 return;
1422
1423         block = (ndis_miniport_block *)adapter;
1424         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1425
1426         sh = malloc(sizeof(struct ndis_shmem), M_DEVBUF, M_NOWAIT|M_ZERO);
1427         if (sh == NULL)
1428                 return;
1429
1430         InitializeListHead(&sh->ndis_list);
1431
1432         /*
1433          * When performing shared memory allocations, create a tag
1434          * with a lowaddr limit that restricts physical memory mappings
1435          * so that they all fall within the first 1GB of memory.
1436          * At least one device/driver combination (Linksys Instant
1437          * Wireless PCI Card V2.7, Broadcom 802.11b) seems to have
1438          * problems with performing DMA operations with physical
1439          * addresses that lie above the 1GB mark. I don't know if this
1440          * is a hardware limitation or if the addresses are being
1441          * truncated within the driver, but this seems to be the only
1442          * way to make these cards work reliably in systems with more
1443          * than 1GB of physical memory.
1444          */
1445
1446         error = bus_dma_tag_create(sc->ndis_parent_tag, 64,
1447             0, NDIS_BUS_SPACE_SHARED_MAXADDR, BUS_SPACE_MAXADDR, NULL,
1448             NULL, len, 1, len, BUS_DMA_ALLOCNOW, NULL, NULL,
1449             &sh->ndis_stag);
1450
1451         if (error) {
1452                 free(sh, M_DEVBUF);
1453                 return;
1454         }
1455
1456         error = bus_dmamem_alloc(sh->ndis_stag, vaddr,
1457             BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sh->ndis_smap);
1458
1459         if (error) {
1460                 bus_dma_tag_destroy(sh->ndis_stag);
1461                 free(sh, M_DEVBUF);
1462                 return;
1463         }
1464
1465         error = bus_dmamap_load(sh->ndis_stag, sh->ndis_smap, *vaddr,
1466             len, ndis_mapshared_cb, (void *)paddr, BUS_DMA_NOWAIT);
1467
1468         if (error) {
1469                 bus_dmamem_free(sh->ndis_stag, *vaddr, sh->ndis_smap);
1470                 bus_dma_tag_destroy(sh->ndis_stag);
1471                 free(sh, M_DEVBUF);
1472                 return;
1473         }
1474
1475         /*
1476          * Save the physical address along with the source address.
1477          * The AirGo MIMO driver will call NdisMFreeSharedMemory()
1478          * with a bogus virtual address sometimes, but with a valid
1479          * physical address. To keep this from causing trouble, we
1480          * use the physical address to as a sanity check in case
1481          * searching based on the virtual address fails.
1482          */
1483
1484         NDIS_LOCK(sc);
1485         sh->ndis_paddr.np_quad = paddr->np_quad;
1486         sh->ndis_saddr = *vaddr;
1487         InsertHeadList((&sc->ndis_shlist), (&sh->ndis_list));
1488         NDIS_UNLOCK(sc);
1489 }
1490
1491 struct ndis_allocwork {
1492         uint32_t                na_len;
1493         uint8_t                 na_cached;
1494         void                    *na_ctx;
1495         io_workitem             *na_iw;
1496 };
1497
1498 static void
1499 ndis_asyncmem_complete(dobj, arg)
1500         device_object           *dobj;
1501         void                    *arg;
1502 {
1503         ndis_miniport_block     *block;
1504         struct ndis_softc       *sc;
1505         struct ndis_allocwork   *w;
1506         void                    *vaddr;
1507         ndis_physaddr           paddr;
1508         ndis_allocdone_handler  donefunc;
1509
1510         w = arg;
1511         block = (ndis_miniport_block *)dobj->do_devext;
1512         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1513
1514         vaddr = NULL;
1515         paddr.np_quad = 0;
1516
1517         donefunc = sc->ndis_chars->nmc_allocate_complete_func;
1518         NdisMAllocateSharedMemory(block, w->na_len,
1519             w->na_cached, &vaddr, &paddr);
1520         MSCALL5(donefunc, block, vaddr, &paddr, w->na_len, w->na_ctx);
1521
1522         IoFreeWorkItem(w->na_iw);
1523         free(w, M_DEVBUF);
1524 }
1525
1526 static ndis_status
1527 NdisMAllocateSharedMemoryAsync(ndis_handle adapter, uint32_t len,
1528     uint8_t cached, void *ctx)
1529 {
1530         ndis_miniport_block     *block;
1531         struct ndis_allocwork   *w;
1532         io_workitem             *iw;
1533         io_workitem_func        ifw;
1534
1535         if (adapter == NULL)
1536                 return (NDIS_STATUS_FAILURE);
1537
1538         block = adapter;
1539
1540         iw = IoAllocateWorkItem(block->nmb_deviceobj);
1541         if (iw == NULL)
1542                 return (NDIS_STATUS_FAILURE);
1543
1544         w = malloc(sizeof(struct ndis_allocwork), M_TEMP, M_NOWAIT);
1545
1546         if (w == NULL)
1547                 return (NDIS_STATUS_FAILURE);
1548
1549         w->na_cached = cached;
1550         w->na_len = len;
1551         w->na_ctx = ctx;
1552         w->na_iw = iw;
1553
1554         ifw = (io_workitem_func)ndis_findwrap((funcptr)ndis_asyncmem_complete);
1555         IoQueueWorkItem(iw, ifw, WORKQUEUE_DELAYED, w);
1556
1557         return (NDIS_STATUS_PENDING);
1558 }
1559
1560 static void
1561 NdisMFreeSharedMemory(ndis_handle adapter, uint32_t len, uint8_t cached,
1562     void *vaddr, ndis_physaddr paddr)
1563 {
1564         ndis_miniport_block     *block;
1565         struct ndis_softc       *sc;
1566         struct ndis_shmem       *sh = NULL;
1567         list_entry              *l;
1568
1569         if (vaddr == NULL || adapter == NULL)
1570                 return;
1571
1572         block = (ndis_miniport_block *)adapter;
1573         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1574
1575         /* Sanity check: is list empty? */
1576
1577         if (IsListEmpty(&sc->ndis_shlist))
1578                 return;
1579
1580         NDIS_LOCK(sc);
1581         l = sc->ndis_shlist.nle_flink;
1582         while (l != &sc->ndis_shlist) {
1583                 sh = CONTAINING_RECORD(l, struct ndis_shmem, ndis_list);
1584                 if (sh->ndis_saddr == vaddr)
1585                         break;
1586                 /*
1587                  * Check the physaddr too, just in case the driver lied
1588                  * about the virtual address.
1589                  */
1590                 if (sh->ndis_paddr.np_quad == paddr.np_quad)
1591                         break;
1592                 l = l->nle_flink;
1593         }
1594
1595         if (sh == NULL) {
1596                 NDIS_UNLOCK(sc);
1597                 printf("NDIS: buggy driver tried to free "
1598                     "invalid shared memory: vaddr: %p paddr: 0x%jx\n",
1599                     vaddr, (uintmax_t)paddr.np_quad);
1600                 return;
1601         }
1602
1603         RemoveEntryList(&sh->ndis_list);
1604
1605         NDIS_UNLOCK(sc);
1606
1607         bus_dmamap_unload(sh->ndis_stag, sh->ndis_smap);
1608         bus_dmamem_free(sh->ndis_stag, sh->ndis_saddr, sh->ndis_smap);
1609         bus_dma_tag_destroy(sh->ndis_stag);
1610
1611         free(sh, M_DEVBUF);
1612 }
1613
1614 static ndis_status
1615 NdisMMapIoSpace(vaddr, adapter, paddr, len)
1616         void                    **vaddr;
1617         ndis_handle             adapter;
1618         ndis_physaddr           paddr;
1619         uint32_t                len;
1620 {
1621         if (adapter == NULL)
1622                 return (NDIS_STATUS_FAILURE);
1623
1624         *vaddr = MmMapIoSpace(paddr.np_quad, len, 0);
1625
1626         if (*vaddr == NULL)
1627                 return (NDIS_STATUS_FAILURE);
1628
1629         return (NDIS_STATUS_SUCCESS);
1630 }
1631
1632 static void
1633 NdisMUnmapIoSpace(adapter, vaddr, len)
1634         ndis_handle             adapter;
1635         void                    *vaddr;
1636         uint32_t                len;
1637 {
1638         MmUnmapIoSpace(vaddr, len);
1639 }
1640
1641 static uint32_t
1642 NdisGetCacheFillSize(void)
1643 {
1644         return (128);
1645 }
1646
1647 static void *
1648 NdisGetRoutineAddress(ustr)
1649         unicode_string          *ustr;
1650 {
1651         ansi_string             astr;
1652
1653         if (RtlUnicodeStringToAnsiString(&astr, ustr, TRUE))
1654                 return (NULL);
1655         return (ndis_get_routine_address(ndis_functbl, astr.as_buf));
1656 }
1657
1658 static uint32_t
1659 NdisMGetDmaAlignment(handle)
1660         ndis_handle             handle;
1661 {
1662         return (16);
1663 }
1664
1665 /*
1666  * NDIS has two methods for dealing with NICs that support DMA.
1667  * One is to just pass packets to the driver and let it call
1668  * NdisMStartBufferPhysicalMapping() to map each buffer in the packet
1669  * all by itself, and the other is to let the NDIS library handle the
1670  * buffer mapping internally, and hand the driver an already populated
1671  * scatter/gather fragment list. If the driver calls
1672  * NdisMInitializeScatterGatherDma(), it wants to use the latter
1673  * method.
1674  */
1675
1676 static ndis_status
1677 NdisMInitializeScatterGatherDma(ndis_handle adapter, uint8_t is64,
1678     uint32_t maxphysmap)
1679 {
1680         struct ndis_softc       *sc;
1681         ndis_miniport_block     *block;
1682         int                     error;
1683
1684         if (adapter == NULL)
1685                 return (NDIS_STATUS_FAILURE);
1686         block = (ndis_miniport_block *)adapter;
1687         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1688
1689         /* Don't do this twice. */
1690         if (sc->ndis_sc == 1)
1691                 return (NDIS_STATUS_SUCCESS);
1692
1693         error = bus_dma_tag_create(sc->ndis_parent_tag, ETHER_ALIGN, 0,
1694             BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
1695             MCLBYTES * NDIS_MAXSEG, NDIS_MAXSEG, MCLBYTES, BUS_DMA_ALLOCNOW,
1696             NULL, NULL, &sc->ndis_ttag);
1697
1698         sc->ndis_sc = 1;
1699
1700         return (NDIS_STATUS_SUCCESS);
1701 }
1702
1703 void
1704 NdisAllocatePacketPool(status, pool, descnum, protrsvdlen)
1705         ndis_status             *status;
1706         ndis_handle             *pool;
1707         uint32_t                descnum;
1708         uint32_t                protrsvdlen;
1709 {
1710         ndis_packet_pool        *p;
1711         ndis_packet             *packets;
1712         int                     i;
1713
1714         p = ExAllocatePoolWithTag(NonPagedPool, sizeof(ndis_packet_pool), 0);
1715         if (p == NULL) {
1716                 *status = NDIS_STATUS_RESOURCES;
1717                 return;
1718         }
1719
1720         p->np_cnt = descnum + NDIS_POOL_EXTRA;
1721         p->np_protrsvd = protrsvdlen;
1722         p->np_len = sizeof(ndis_packet) + protrsvdlen;
1723
1724         packets = ExAllocatePoolWithTag(NonPagedPool, p->np_cnt *
1725             p->np_len, 0);
1726
1727
1728         if (packets == NULL) {
1729                 ExFreePool(p);
1730                 *status = NDIS_STATUS_RESOURCES;
1731                 return;
1732         }
1733
1734         p->np_pktmem = packets;
1735
1736         for (i = 0; i < p->np_cnt; i++)
1737                 InterlockedPushEntrySList(&p->np_head,
1738                     (struct slist_entry *)&packets[i]);
1739
1740 #ifdef NDIS_DEBUG_PACKETS
1741         p->np_dead = 0;
1742         KeInitializeSpinLock(&p->np_lock);
1743         KeInitializeEvent(&p->np_event, EVENT_TYPE_NOTIFY, TRUE);
1744 #endif
1745
1746         *pool = p;
1747         *status = NDIS_STATUS_SUCCESS;
1748 }
1749
1750 void
1751 NdisAllocatePacketPoolEx(status, pool, descnum, oflowdescnum, protrsvdlen)
1752         ndis_status             *status;
1753         ndis_handle             *pool;
1754         uint32_t                descnum;
1755         uint32_t                oflowdescnum;
1756         uint32_t                protrsvdlen;
1757 {
1758         return (NdisAllocatePacketPool(status, pool,
1759             descnum + oflowdescnum, protrsvdlen));
1760 }
1761
1762 uint32_t
1763 NdisPacketPoolUsage(pool)
1764         ndis_handle             pool;
1765 {
1766         ndis_packet_pool        *p;
1767
1768         p = (ndis_packet_pool *)pool;
1769         return (p->np_cnt - ExQueryDepthSList(&p->np_head));
1770 }
1771
1772 void
1773 NdisFreePacketPool(pool)
1774         ndis_handle             pool;
1775 {
1776         ndis_packet_pool        *p;
1777         int                     usage;
1778 #ifdef NDIS_DEBUG_PACKETS
1779         uint8_t                 irql;
1780 #endif
1781
1782         p = (ndis_packet_pool *)pool;
1783
1784 #ifdef NDIS_DEBUG_PACKETS
1785         KeAcquireSpinLock(&p->np_lock, &irql);
1786 #endif
1787
1788         usage = NdisPacketPoolUsage(pool);
1789
1790 #ifdef NDIS_DEBUG_PACKETS
1791         if (usage) {
1792                 p->np_dead = 1;
1793                 KeResetEvent(&p->np_event);
1794                 KeReleaseSpinLock(&p->np_lock, irql);
1795                 KeWaitForSingleObject(&p->np_event, 0, 0, FALSE, NULL);
1796         } else
1797                 KeReleaseSpinLock(&p->np_lock, irql);
1798 #endif
1799
1800         ExFreePool(p->np_pktmem);
1801         ExFreePool(p);
1802 }
1803
1804 void
1805 NdisAllocatePacket(status, packet, pool)
1806         ndis_status             *status;
1807         ndis_packet             **packet;
1808         ndis_handle             pool;
1809 {
1810         ndis_packet_pool        *p;
1811         ndis_packet             *pkt;
1812 #ifdef NDIS_DEBUG_PACKETS
1813         uint8_t                 irql;
1814 #endif
1815
1816         p = (ndis_packet_pool *)pool;
1817
1818 #ifdef NDIS_DEBUG_PACKETS
1819         KeAcquireSpinLock(&p->np_lock, &irql);
1820         if (p->np_dead) {
1821                 KeReleaseSpinLock(&p->np_lock, irql);
1822                 printf("NDIS: tried to allocate packet from dead pool %p\n",
1823                     pool);
1824                 *status = NDIS_STATUS_RESOURCES;
1825                 return;
1826         }
1827 #endif
1828
1829         pkt = (ndis_packet *)InterlockedPopEntrySList(&p->np_head);
1830
1831 #ifdef NDIS_DEBUG_PACKETS
1832         KeReleaseSpinLock(&p->np_lock, irql);
1833 #endif
1834
1835         if (pkt == NULL) {
1836                 *status = NDIS_STATUS_RESOURCES;
1837                 return;
1838         }
1839
1840
1841         bzero((char *)pkt, sizeof(ndis_packet));
1842
1843         /* Save pointer to the pool. */
1844         pkt->np_private.npp_pool = pool;
1845
1846         /* Set the oob offset pointer. Lots of things expect this. */
1847         pkt->np_private.npp_packetooboffset = offsetof(ndis_packet, np_oob);
1848
1849         /*
1850          * We must initialize the packet flags correctly in order
1851          * for the NDIS_SET_PACKET_MEDIA_SPECIFIC_INFO() and
1852          * NDIS_GET_PACKET_MEDIA_SPECIFIC_INFO() macros to work
1853          * correctly.
1854          */
1855         pkt->np_private.npp_ndispktflags = NDIS_PACKET_ALLOCATED_BY_NDIS;
1856         pkt->np_private.npp_validcounts = FALSE;
1857
1858         *packet = pkt;
1859
1860         *status = NDIS_STATUS_SUCCESS;
1861 }
1862
1863 void
1864 NdisFreePacket(packet)
1865         ndis_packet             *packet;
1866 {
1867         ndis_packet_pool        *p;
1868 #ifdef NDIS_DEBUG_PACKETS
1869         uint8_t                 irql;
1870 #endif
1871
1872         p = (ndis_packet_pool *)packet->np_private.npp_pool;
1873
1874 #ifdef NDIS_DEBUG_PACKETS
1875         KeAcquireSpinLock(&p->np_lock, &irql);
1876 #endif
1877
1878         InterlockedPushEntrySList(&p->np_head, (slist_entry *)packet);
1879
1880 #ifdef NDIS_DEBUG_PACKETS
1881         if (p->np_dead) {
1882                 if (ExQueryDepthSList(&p->np_head) == p->np_cnt)
1883                         KeSetEvent(&p->np_event, IO_NO_INCREMENT, FALSE);
1884         }
1885         KeReleaseSpinLock(&p->np_lock, irql);
1886 #endif
1887 }
1888
1889 static void
1890 NdisUnchainBufferAtFront(packet, buf)
1891         ndis_packet             *packet;
1892         ndis_buffer             **buf;
1893 {
1894         ndis_packet_private     *priv;
1895
1896         if (packet == NULL || buf == NULL)
1897                 return;
1898
1899         priv = &packet->np_private;
1900
1901         priv->npp_validcounts = FALSE;
1902
1903         if (priv->npp_head == priv->npp_tail) {
1904                 *buf = priv->npp_head;
1905                 priv->npp_head = priv->npp_tail = NULL;
1906         } else {
1907                 *buf = priv->npp_head;
1908                 priv->npp_head = (*buf)->mdl_next;
1909         }
1910 }
1911
1912 static void
1913 NdisUnchainBufferAtBack(packet, buf)
1914         ndis_packet             *packet;
1915         ndis_buffer             **buf;
1916 {
1917         ndis_packet_private     *priv;
1918         ndis_buffer             *tmp;
1919
1920         if (packet == NULL || buf == NULL)
1921                 return;
1922
1923         priv = &packet->np_private;
1924
1925         priv->npp_validcounts = FALSE;
1926
1927         if (priv->npp_head == priv->npp_tail) {
1928                 *buf = priv->npp_head;
1929                 priv->npp_head = priv->npp_tail = NULL;
1930         } else {
1931                 *buf = priv->npp_tail;
1932                 tmp = priv->npp_head;
1933                 while (tmp->mdl_next != priv->npp_tail)
1934                         tmp = tmp->mdl_next;
1935                 priv->npp_tail = tmp;
1936                 tmp->mdl_next = NULL;
1937         }
1938 }
1939
1940 /*
1941  * The NDIS "buffer" is really an MDL (memory descriptor list)
1942  * which is used to describe a buffer in a way that allows it
1943  * to mapped into different contexts. We have to be careful how
1944  * we handle them: in some versions of Windows, the NdisFreeBuffer()
1945  * routine is an actual function in the NDIS API, but in others
1946  * it's just a macro wrapper around IoFreeMdl(). There's really
1947  * no way to use the 'descnum' parameter to count how many
1948  * "buffers" are allocated since in order to use IoFreeMdl() to
1949  * dispose of a buffer, we have to use IoAllocateMdl() to allocate
1950  * them, and IoAllocateMdl() just grabs them out of the heap.
1951  */
1952
1953 static void
1954 NdisAllocateBufferPool(status, pool, descnum)
1955         ndis_status             *status;
1956         ndis_handle             *pool;
1957         uint32_t                descnum;
1958 {
1959
1960         /*
1961          * The only thing we can really do here is verify that descnum
1962          * is a reasonable value, but I really don't know what to check
1963          * it against.
1964          */
1965
1966         *pool = NonPagedPool;
1967         *status = NDIS_STATUS_SUCCESS;
1968 }
1969
1970 static void
1971 NdisFreeBufferPool(pool)
1972         ndis_handle             pool;
1973 {
1974 }
1975
1976 static void
1977 NdisAllocateBuffer(status, buffer, pool, vaddr, len)
1978         ndis_status             *status;
1979         ndis_buffer             **buffer;
1980         ndis_handle             pool;
1981         void                    *vaddr;
1982         uint32_t                len;
1983 {
1984         ndis_buffer             *buf;
1985
1986         buf = IoAllocateMdl(vaddr, len, FALSE, FALSE, NULL);
1987         if (buf == NULL) {
1988                 *status = NDIS_STATUS_RESOURCES;
1989                 return;
1990         }
1991
1992         MmBuildMdlForNonPagedPool(buf);
1993
1994         *buffer = buf;
1995         *status = NDIS_STATUS_SUCCESS;
1996 }
1997
1998 static void
1999 NdisFreeBuffer(buf)
2000         ndis_buffer             *buf;
2001 {
2002         IoFreeMdl(buf);
2003 }
2004
2005 /* Aw c'mon. */
2006
2007 static uint32_t
2008 NdisBufferLength(buf)
2009         ndis_buffer             *buf;
2010 {
2011         return (MmGetMdlByteCount(buf));
2012 }
2013
2014 /*
2015  * Get the virtual address and length of a buffer.
2016  * Note: the vaddr argument is optional.
2017  */
2018
2019 static void
2020 NdisQueryBuffer(buf, vaddr, len)
2021         ndis_buffer             *buf;
2022         void                    **vaddr;
2023         uint32_t                *len;
2024 {
2025         if (vaddr != NULL)
2026                 *vaddr = MmGetMdlVirtualAddress(buf);
2027         *len = MmGetMdlByteCount(buf);
2028 }
2029
2030 /* Same as above -- we don't care about the priority. */
2031
2032 static void
2033 NdisQueryBufferSafe(buf, vaddr, len, prio)
2034         ndis_buffer             *buf;
2035         void                    **vaddr;
2036         uint32_t                *len;
2037         uint32_t                prio;
2038 {
2039         if (vaddr != NULL)
2040                 *vaddr = MmGetMdlVirtualAddress(buf);
2041         *len = MmGetMdlByteCount(buf);
2042 }
2043
2044 /* Damnit Microsoft!! How many ways can you do the same thing?! */
2045
2046 static void *
2047 NdisBufferVirtualAddress(buf)
2048         ndis_buffer             *buf;
2049 {
2050         return (MmGetMdlVirtualAddress(buf));
2051 }
2052
2053 static void *
2054 NdisBufferVirtualAddressSafe(buf, prio)
2055         ndis_buffer             *buf;
2056         uint32_t                prio;
2057 {
2058         return (MmGetMdlVirtualAddress(buf));
2059 }
2060
2061 static void
2062 NdisAdjustBufferLength(buf, len)
2063         ndis_buffer             *buf;
2064         int                     len;
2065 {
2066         MmGetMdlByteCount(buf) = len;
2067 }
2068
2069 static uint32_t
2070 NdisInterlockedIncrement(addend)
2071         uint32_t                *addend;
2072 {
2073         atomic_add_long((u_long *)addend, 1);
2074         return (*addend);
2075 }
2076
2077 static uint32_t
2078 NdisInterlockedDecrement(addend)
2079         uint32_t                *addend;
2080 {
2081         atomic_subtract_long((u_long *)addend, 1);
2082         return (*addend);
2083 }
2084
2085 static uint32_t
2086 NdisGetVersion(void)
2087 {
2088         return (0x00050001);
2089 }
2090
2091 static void
2092 NdisInitializeEvent(event)
2093         ndis_event              *event;
2094 {
2095         /*
2096          * NDIS events are always notification
2097          * events, and should be initialized to the
2098          * not signaled state.
2099          */
2100         KeInitializeEvent(&event->ne_event, EVENT_TYPE_NOTIFY, FALSE);
2101 }
2102
2103 static void
2104 NdisSetEvent(event)
2105         ndis_event              *event;
2106 {
2107         KeSetEvent(&event->ne_event, IO_NO_INCREMENT, FALSE);
2108 }
2109
2110 static void
2111 NdisResetEvent(event)
2112         ndis_event              *event;
2113 {
2114         KeResetEvent(&event->ne_event);
2115 }
2116
2117 static uint8_t
2118 NdisWaitEvent(event, msecs)
2119         ndis_event              *event;
2120         uint32_t                msecs;
2121 {
2122         int64_t                 duetime;
2123         uint32_t                rval;
2124
2125         duetime = ((int64_t)msecs * -10000);
2126         rval = KeWaitForSingleObject(event,
2127             0, 0, TRUE, msecs ? & duetime : NULL);
2128
2129         if (rval == STATUS_TIMEOUT)
2130                 return (FALSE);
2131
2132         return (TRUE);
2133 }
2134
2135 static ndis_status
2136 NdisUnicodeStringToAnsiString(dstr, sstr)
2137         ansi_string             *dstr;
2138         unicode_string          *sstr;
2139 {
2140         uint32_t                rval;
2141
2142         rval = RtlUnicodeStringToAnsiString(dstr, sstr, FALSE);
2143
2144         if (rval == STATUS_INSUFFICIENT_RESOURCES)
2145                 return (NDIS_STATUS_RESOURCES);
2146         if (rval)
2147                 return (NDIS_STATUS_FAILURE);
2148
2149         return (NDIS_STATUS_SUCCESS);
2150 }
2151
2152 static ndis_status
2153 NdisAnsiStringToUnicodeString(dstr, sstr)
2154         unicode_string          *dstr;
2155         ansi_string             *sstr;
2156 {
2157         uint32_t                rval;
2158
2159         rval = RtlAnsiStringToUnicodeString(dstr, sstr, FALSE);
2160
2161         if (rval == STATUS_INSUFFICIENT_RESOURCES)
2162                 return (NDIS_STATUS_RESOURCES);
2163         if (rval)
2164                 return (NDIS_STATUS_FAILURE);
2165
2166         return (NDIS_STATUS_SUCCESS);
2167 }
2168
2169 static ndis_status
2170 NdisMPciAssignResources(adapter, slot, list)
2171         ndis_handle             adapter;
2172         uint32_t                slot;
2173         ndis_resource_list      **list;
2174 {
2175         ndis_miniport_block     *block;
2176
2177         if (adapter == NULL || list == NULL)
2178                 return (NDIS_STATUS_FAILURE);
2179
2180         block = (ndis_miniport_block *)adapter;
2181         *list = block->nmb_rlist;
2182
2183         return (NDIS_STATUS_SUCCESS);
2184 }
2185
2186 static uint8_t
2187 ndis_intr(iobj, arg)
2188         kinterrupt              *iobj;
2189         void                    *arg;
2190 {
2191         struct ndis_softc       *sc;
2192         uint8_t                 is_our_intr = FALSE;
2193         int                     call_isr = 0;
2194         ndis_miniport_interrupt *intr;
2195
2196         sc = arg;
2197         intr = sc->ndis_block->nmb_interrupt;
2198
2199         if (intr == NULL || sc->ndis_block->nmb_miniportadapterctx == NULL)
2200                 return (FALSE);
2201
2202         if (sc->ndis_block->nmb_interrupt->ni_isrreq == TRUE)
2203                 MSCALL3(intr->ni_isrfunc, &is_our_intr, &call_isr,
2204                     sc->ndis_block->nmb_miniportadapterctx);
2205         else {
2206                 MSCALL1(sc->ndis_chars->nmc_disable_interrupts_func,
2207                     sc->ndis_block->nmb_miniportadapterctx);
2208                 call_isr = 1;
2209         }
2210
2211         if (call_isr)
2212                 IoRequestDpc(sc->ndis_block->nmb_deviceobj, NULL, sc);
2213
2214         return (is_our_intr);
2215 }
2216
2217 static void
2218 ndis_intrhand(dpc, intr, sysarg1, sysarg2)
2219         kdpc                    *dpc;
2220         ndis_miniport_interrupt *intr;
2221         void                    *sysarg1;
2222         void                    *sysarg2;
2223 {
2224         struct ndis_softc       *sc;
2225         ndis_miniport_block     *block;
2226         ndis_handle             adapter;
2227
2228         block = intr->ni_block;
2229         adapter = block->nmb_miniportadapterctx;
2230         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2231
2232         if (NDIS_SERIALIZED(sc->ndis_block))
2233                 KeAcquireSpinLockAtDpcLevel(&block->nmb_lock);
2234
2235         MSCALL1(intr->ni_dpcfunc, adapter);
2236
2237         /* If there's a MiniportEnableInterrupt() routine, call it. */
2238
2239         if (sc->ndis_chars->nmc_enable_interrupts_func != NULL)
2240                 MSCALL1(sc->ndis_chars->nmc_enable_interrupts_func, adapter);
2241
2242         if (NDIS_SERIALIZED(sc->ndis_block))
2243                 KeReleaseSpinLockFromDpcLevel(&block->nmb_lock);
2244
2245         /*
2246          * Set the completion event if we've drained all
2247          * pending interrupts.
2248          */
2249
2250         KeAcquireSpinLockAtDpcLevel(&intr->ni_dpccountlock);
2251         intr->ni_dpccnt--;
2252         if (intr->ni_dpccnt == 0)
2253                 KeSetEvent(&intr->ni_dpcevt, IO_NO_INCREMENT, FALSE);
2254         KeReleaseSpinLockFromDpcLevel(&intr->ni_dpccountlock);
2255 }
2256
2257 static ndis_status
2258 NdisMRegisterInterrupt(ndis_miniport_interrupt *intr, ndis_handle adapter,
2259     uint32_t ivec, uint32_t ilevel, uint8_t reqisr, uint8_t shared,
2260     ndis_interrupt_mode imode)
2261 {
2262         ndis_miniport_block     *block;
2263         ndis_miniport_characteristics *ch;
2264         struct ndis_softc       *sc;
2265         int                     error;
2266
2267         block = adapter;
2268         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2269         ch = IoGetDriverObjectExtension(block->nmb_deviceobj->do_drvobj,
2270             (void *)1);
2271
2272         intr->ni_rsvd = ExAllocatePoolWithTag(NonPagedPool,
2273             sizeof(struct mtx), 0);
2274         if (intr->ni_rsvd == NULL)
2275                 return (NDIS_STATUS_RESOURCES);
2276
2277         intr->ni_block = adapter;
2278         intr->ni_isrreq = reqisr;
2279         intr->ni_shared = shared;
2280         intr->ni_dpccnt = 0;
2281         intr->ni_isrfunc = ch->nmc_isr_func;
2282         intr->ni_dpcfunc = ch->nmc_interrupt_func;
2283
2284         KeInitializeEvent(&intr->ni_dpcevt, EVENT_TYPE_NOTIFY, TRUE);
2285         KeInitializeDpc(&intr->ni_dpc,
2286             ndis_findwrap((funcptr)ndis_intrhand), intr);
2287         KeSetImportanceDpc(&intr->ni_dpc, KDPC_IMPORTANCE_LOW);
2288
2289         error = IoConnectInterrupt(&intr->ni_introbj,
2290             ndis_findwrap((funcptr)ndis_intr), sc, NULL,
2291             ivec, ilevel, 0, imode, shared, 0, FALSE);
2292
2293         if (error != STATUS_SUCCESS)
2294                 return (NDIS_STATUS_FAILURE);
2295
2296         block->nmb_interrupt = intr;
2297
2298         return (NDIS_STATUS_SUCCESS);
2299 }
2300
2301 static void
2302 NdisMDeregisterInterrupt(intr)
2303         ndis_miniport_interrupt *intr;
2304 {
2305         ndis_miniport_block     *block;
2306         uint8_t                 irql;
2307
2308         block = intr->ni_block;
2309
2310         /* Should really be KeSynchronizeExecution() */
2311
2312         KeAcquireSpinLock(intr->ni_introbj->ki_lock, &irql);
2313         block->nmb_interrupt = NULL;
2314         KeReleaseSpinLock(intr->ni_introbj->ki_lock, irql);
2315 /*
2316         KeFlushQueuedDpcs();
2317 */
2318         /* Disconnect our ISR */
2319
2320         IoDisconnectInterrupt(intr->ni_introbj);
2321
2322         KeWaitForSingleObject(&intr->ni_dpcevt, 0, 0, FALSE, NULL);
2323         KeResetEvent(&intr->ni_dpcevt);
2324 }
2325
2326 static void
2327 NdisMRegisterAdapterShutdownHandler(adapter, shutdownctx, shutdownfunc)
2328         ndis_handle             adapter;
2329         void                    *shutdownctx;
2330         ndis_shutdown_handler   shutdownfunc;
2331 {
2332         ndis_miniport_block     *block;
2333         ndis_miniport_characteristics *chars;
2334         struct ndis_softc       *sc;
2335
2336         if (adapter == NULL)
2337                 return;
2338
2339         block = (ndis_miniport_block *)adapter;
2340         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2341         chars = sc->ndis_chars;
2342
2343         chars->nmc_shutdown_handler = shutdownfunc;
2344         chars->nmc_rsvd0 = shutdownctx;
2345 }
2346
2347 static void
2348 NdisMDeregisterAdapterShutdownHandler(adapter)
2349         ndis_handle             adapter;
2350 {
2351         ndis_miniport_block     *block;
2352         ndis_miniport_characteristics *chars;
2353         struct ndis_softc       *sc;
2354
2355         if (adapter == NULL)
2356                 return;
2357
2358         block = (ndis_miniport_block *)adapter;
2359         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2360         chars = sc->ndis_chars;
2361
2362         chars->nmc_shutdown_handler = NULL;
2363         chars->nmc_rsvd0 = NULL;
2364 }
2365
2366 static uint32_t
2367 NDIS_BUFFER_TO_SPAN_PAGES(buf)
2368         ndis_buffer             *buf;
2369 {
2370         if (buf == NULL)
2371                 return (0);
2372         if (MmGetMdlByteCount(buf) == 0)
2373                 return (1);
2374         return (SPAN_PAGES(MmGetMdlVirtualAddress(buf),
2375             MmGetMdlByteCount(buf)));
2376 }
2377
2378 static void
2379 NdisGetBufferPhysicalArraySize(buf, pages)
2380         ndis_buffer             *buf;
2381         uint32_t                *pages;
2382 {
2383         if (buf == NULL)
2384                 return;
2385
2386         *pages = NDIS_BUFFER_TO_SPAN_PAGES(buf);
2387 }
2388
2389 static void
2390 NdisQueryBufferOffset(buf, off, len)
2391         ndis_buffer             *buf;
2392         uint32_t                *off;
2393         uint32_t                *len;
2394 {
2395         if (buf == NULL)
2396                 return;
2397
2398         *off = MmGetMdlByteOffset(buf);
2399         *len = MmGetMdlByteCount(buf);
2400 }
2401
2402 void
2403 NdisMSleep(usecs)
2404         uint32_t                usecs;
2405 {
2406         ktimer                  timer;
2407
2408         /*
2409          * During system bootstrap, (i.e. cold == 1), we aren't
2410          * allowed to sleep, so we have to do a hard DELAY()
2411          * instead.
2412          */
2413
2414         if (cold)
2415                 DELAY(usecs);
2416         else {
2417                 KeInitializeTimer(&timer);
2418                 KeSetTimer(&timer, ((int64_t)usecs * -10), NULL);
2419                 KeWaitForSingleObject(&timer, 0, 0, FALSE, NULL);
2420         }
2421 }
2422
2423 static uint32_t
2424 NdisReadPcmciaAttributeMemory(handle, offset, buf, len)
2425         ndis_handle             handle;
2426         uint32_t                offset;
2427         void                    *buf;
2428         uint32_t                len;
2429 {
2430         struct ndis_softc       *sc;
2431         ndis_miniport_block     *block;
2432         bus_space_handle_t      bh;
2433         bus_space_tag_t         bt;
2434         char                    *dest;
2435         uint32_t                i;
2436
2437         if (handle == NULL)
2438                 return (0);
2439
2440         block = (ndis_miniport_block *)handle;
2441         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2442         dest = buf;
2443
2444         bh = rman_get_bushandle(sc->ndis_res_am);
2445         bt = rman_get_bustag(sc->ndis_res_am);
2446
2447         for (i = 0; i < len; i++)
2448                 dest[i] = bus_space_read_1(bt, bh, (offset + i) * 2);
2449
2450         return (i);
2451 }
2452
2453 static uint32_t
2454 NdisWritePcmciaAttributeMemory(handle, offset, buf, len)
2455         ndis_handle             handle;
2456         uint32_t                offset;
2457         void                    *buf;
2458         uint32_t                len;
2459 {
2460         struct ndis_softc       *sc;
2461         ndis_miniport_block     *block;
2462         bus_space_handle_t      bh;
2463         bus_space_tag_t         bt;
2464         char                    *src;
2465         uint32_t                i;
2466
2467         if (handle == NULL)
2468                 return (0);
2469
2470         block = (ndis_miniport_block *)handle;
2471         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2472         src = buf;
2473
2474         bh = rman_get_bushandle(sc->ndis_res_am);
2475         bt = rman_get_bustag(sc->ndis_res_am);
2476
2477         for (i = 0; i < len; i++)
2478                 bus_space_write_1(bt, bh, (offset + i) * 2, src[i]);
2479
2480         return (i);
2481 }
2482
2483 static list_entry *
2484 NdisInterlockedInsertHeadList(head, entry, lock)
2485         list_entry              *head;
2486         list_entry              *entry;
2487         ndis_spin_lock          *lock;
2488 {
2489         list_entry              *flink;
2490
2491         KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
2492         flink = head->nle_flink;
2493         entry->nle_flink = flink;
2494         entry->nle_blink = head;
2495         flink->nle_blink = entry;
2496         head->nle_flink = entry;
2497         KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
2498
2499         return (flink);
2500 }
2501
2502 static list_entry *
2503 NdisInterlockedRemoveHeadList(head, lock)
2504         list_entry              *head;
2505         ndis_spin_lock          *lock;
2506 {
2507         list_entry              *flink;
2508         list_entry              *entry;
2509
2510         KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
2511         entry = head->nle_flink;
2512         flink = entry->nle_flink;
2513         head->nle_flink = flink;
2514         flink->nle_blink = head;
2515         KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
2516
2517         return (entry);
2518 }
2519
2520 static list_entry *
2521 NdisInterlockedInsertTailList(head, entry, lock)
2522         list_entry              *head;
2523         list_entry              *entry;
2524         ndis_spin_lock          *lock;
2525 {
2526         list_entry              *blink;
2527
2528         KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
2529         blink = head->nle_blink;
2530         entry->nle_flink = head;
2531         entry->nle_blink = blink;
2532         blink->nle_flink = entry;
2533         head->nle_blink = entry;
2534         KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
2535
2536         return (blink);
2537 }
2538
2539 static uint8_t
2540 NdisMSynchronizeWithInterrupt(intr, syncfunc, syncctx)
2541         ndis_miniport_interrupt *intr;
2542         void                    *syncfunc;
2543         void                    *syncctx;
2544 {
2545         return (KeSynchronizeExecution(intr->ni_introbj, syncfunc, syncctx));
2546 }
2547
2548 static void
2549 NdisGetCurrentSystemTime(tval)
2550         uint64_t                *tval;
2551 {
2552         ntoskrnl_time(tval);
2553 }
2554
2555 /*
2556  * Return the number of milliseconds since the system booted.
2557  */
2558 static void
2559 NdisGetSystemUpTime(tval)
2560         uint32_t                *tval;
2561 {
2562         struct timespec         ts;
2563
2564         nanouptime(&ts);
2565         *tval = ts.tv_nsec / 1000000 + ts.tv_sec * 1000;
2566 }
2567
2568 static void
2569 NdisInitializeString(dst, src)
2570         unicode_string          *dst;
2571         char                    *src;
2572 {
2573         ansi_string             as;
2574         RtlInitAnsiString(&as, src);
2575         RtlAnsiStringToUnicodeString(dst, &as, TRUE);
2576 }
2577
2578 static void
2579 NdisFreeString(str)
2580         unicode_string          *str;
2581 {
2582         RtlFreeUnicodeString(str);
2583 }
2584
2585 static ndis_status
2586 NdisMRemoveMiniport(adapter)
2587         ndis_handle             *adapter;
2588 {
2589         return (NDIS_STATUS_SUCCESS);
2590 }
2591
2592 static void
2593 NdisInitAnsiString(dst, src)
2594         ansi_string             *dst;
2595         char                    *src;
2596 {
2597         RtlInitAnsiString(dst, src);
2598 }
2599
2600 static void
2601 NdisInitUnicodeString(dst, src)
2602         unicode_string          *dst;
2603         uint16_t                *src;
2604 {
2605         RtlInitUnicodeString(dst, src);
2606 }
2607
2608 static void NdisMGetDeviceProperty(adapter, phydevobj,
2609         funcdevobj, nextdevobj, resources, transresources)
2610         ndis_handle             adapter;
2611         device_object           **phydevobj;
2612         device_object           **funcdevobj;
2613         device_object           **nextdevobj;
2614         cm_resource_list        *resources;
2615         cm_resource_list        *transresources;
2616 {
2617         ndis_miniport_block     *block;
2618
2619         block = (ndis_miniport_block *)adapter;
2620
2621         if (phydevobj != NULL)
2622                 *phydevobj = block->nmb_physdeviceobj;
2623         if (funcdevobj != NULL)
2624                 *funcdevobj = block->nmb_deviceobj;
2625         if (nextdevobj != NULL)
2626                 *nextdevobj = block->nmb_nextdeviceobj;
2627 }
2628
2629 static void
2630 NdisGetFirstBufferFromPacket(packet, buf, firstva, firstlen, totlen)
2631         ndis_packet             *packet;
2632         ndis_buffer             **buf;
2633         void                    **firstva;
2634         uint32_t                *firstlen;
2635         uint32_t                *totlen;
2636 {
2637         ndis_buffer             *tmp;
2638
2639         tmp = packet->np_private.npp_head;
2640         *buf = tmp;
2641         if (tmp == NULL) {
2642                 *firstva = NULL;
2643                 *firstlen = *totlen = 0;
2644         } else {
2645                 *firstva = MmGetMdlVirtualAddress(tmp);
2646                 *firstlen = *totlen = MmGetMdlByteCount(tmp);
2647                 for (tmp = tmp->mdl_next; tmp != NULL; tmp = tmp->mdl_next)
2648                         *totlen += MmGetMdlByteCount(tmp);
2649         }
2650 }
2651
2652 static void
2653 NdisGetFirstBufferFromPacketSafe(packet, buf, firstva, firstlen, totlen, prio)
2654         ndis_packet             *packet;
2655         ndis_buffer             **buf;
2656         void                    **firstva;
2657         uint32_t                *firstlen;
2658         uint32_t                *totlen;
2659         uint32_t                prio;
2660 {
2661         NdisGetFirstBufferFromPacket(packet, buf, firstva, firstlen, totlen);
2662 }
2663
2664 static int
2665 ndis_find_sym(lf, filename, suffix, sym)
2666         linker_file_t           lf;
2667         char                    *filename;
2668         char                    *suffix;
2669         caddr_t                 *sym;
2670 {
2671         char                    *fullsym;
2672         char                    *suf;
2673         u_int                   i;
2674
2675         fullsym = ExAllocatePoolWithTag(NonPagedPool, MAXPATHLEN, 0);
2676         if (fullsym == NULL)
2677                 return (ENOMEM);
2678
2679         bzero(fullsym, MAXPATHLEN);
2680         strncpy(fullsym, filename, MAXPATHLEN);
2681         if (strlen(filename) < 4) {
2682                 ExFreePool(fullsym);
2683                 return (EINVAL);
2684         }
2685
2686         /* If the filename has a .ko suffix, strip if off. */
2687         suf = fullsym + (strlen(filename) - 3);
2688         if (strcmp(suf, ".ko") == 0)
2689                 *suf = '\0';
2690
2691         for (i = 0; i < strlen(fullsym); i++) {
2692                 if (fullsym[i] == '.')
2693                         fullsym[i] = '_';
2694                 else
2695                         fullsym[i] = tolower(fullsym[i]);
2696         }
2697         strcat(fullsym, suffix);
2698         *sym = linker_file_lookup_symbol(lf, fullsym, 0);
2699         ExFreePool(fullsym);
2700         if (*sym == 0)
2701                 return (ENOENT);
2702
2703         return (0);
2704 }
2705
2706 struct ndis_checkmodule {
2707         char    *afilename;
2708         ndis_fh *fh;
2709 };
2710
2711 /*
2712  * See if a single module contains the symbols for a specified file.
2713  */
2714 static int
2715 NdisCheckModule(linker_file_t lf, void *context)
2716 {
2717         struct ndis_checkmodule *nc;
2718         caddr_t                 kldstart, kldend;
2719
2720         nc = (struct ndis_checkmodule *)context;
2721         if (ndis_find_sym(lf, nc->afilename, "_start", &kldstart))
2722                 return (0);
2723         if (ndis_find_sym(lf, nc->afilename, "_end", &kldend))
2724                 return (0);
2725         nc->fh->nf_vp = lf;
2726         nc->fh->nf_map = NULL;
2727         nc->fh->nf_type = NDIS_FH_TYPE_MODULE;
2728         nc->fh->nf_maplen = (kldend - kldstart) & 0xFFFFFFFF;
2729         return (1);
2730 }
2731
2732 /* can also return NDIS_STATUS_RESOURCES/NDIS_STATUS_ERROR_READING_FILE */
2733 static void
2734 NdisOpenFile(status, filehandle, filelength, filename, highestaddr)
2735         ndis_status             *status;
2736         ndis_handle             *filehandle;
2737         uint32_t                *filelength;
2738         unicode_string          *filename;
2739         ndis_physaddr           highestaddr;
2740 {
2741         ansi_string             as;
2742         char                    *afilename = NULL;
2743         struct thread           *td = curthread;
2744         struct nameidata        nd;
2745         int                     flags, error;
2746         struct vattr            vat;
2747         struct vattr            *vap = &vat;
2748         ndis_fh                 *fh;
2749         char                    *path;
2750         struct ndis_checkmodule nc;
2751
2752         if (RtlUnicodeStringToAnsiString(&as, filename, TRUE)) {
2753                 *status = NDIS_STATUS_RESOURCES;
2754                 return;
2755         }
2756
2757         afilename = strdup(as.as_buf, M_DEVBUF);
2758         RtlFreeAnsiString(&as);
2759
2760         fh = ExAllocatePoolWithTag(NonPagedPool, sizeof(ndis_fh), 0);
2761         if (fh == NULL) {
2762                 free(afilename, M_DEVBUF);
2763                 *status = NDIS_STATUS_RESOURCES;
2764                 return;
2765         }
2766
2767         fh->nf_name = afilename;
2768
2769         /*
2770          * During system bootstrap, it's impossible to load files
2771          * from the rootfs since it's not mounted yet. We therefore
2772          * offer the possibility of opening files that have been
2773          * preloaded as modules instead. Both choices will work
2774          * when kldloading a module from multiuser, but only the
2775          * module option will work during bootstrap. The module
2776          * loading option works by using the ndiscvt(8) utility
2777          * to convert the arbitrary file into a .ko using objcopy(1).
2778          * This file will contain two special symbols: filename_start
2779          * and filename_end. All we have to do is traverse the KLD
2780          * list in search of those symbols and we've found the file
2781          * data. As an added bonus, ndiscvt(8) will also generate
2782          * a normal .o file which can be linked statically with
2783          * the kernel. This means that the symbols will actual reside
2784          * in the kernel's symbol table, but that doesn't matter to
2785          * us since the kernel appears to us as just another module.
2786          */
2787
2788         nc.afilename = afilename;
2789         nc.fh = fh;
2790         if (linker_file_foreach(NdisCheckModule, &nc)) {
2791                 *filelength = fh->nf_maplen;
2792                 *filehandle = fh;
2793                 *status = NDIS_STATUS_SUCCESS;
2794                 return;
2795         }
2796
2797         if (TAILQ_EMPTY(&mountlist)) {
2798                 ExFreePool(fh);
2799                 *status = NDIS_STATUS_FILE_NOT_FOUND;
2800                 printf("NDIS: could not find file %s in linker list\n",
2801                     afilename);
2802                 printf("NDIS: and no filesystems mounted yet, "
2803                     "aborting NdisOpenFile()\n");
2804                 free(afilename, M_DEVBUF);
2805                 return;
2806         }
2807
2808         path = ExAllocatePoolWithTag(NonPagedPool, MAXPATHLEN, 0);
2809         if (path == NULL) {
2810                 ExFreePool(fh);
2811                 free(afilename, M_DEVBUF);
2812                 *status = NDIS_STATUS_RESOURCES;
2813                 return;
2814         }
2815
2816         snprintf(path, MAXPATHLEN, "%s/%s", ndis_filepath, afilename);
2817
2818         /* Some threads don't have a current working directory. */
2819
2820         pwd_ensure_dirs();
2821
2822         NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, path, td);
2823
2824         flags = FREAD;
2825         error = vn_open(&nd, &flags, 0, NULL);
2826         if (error) {
2827                 *status = NDIS_STATUS_FILE_NOT_FOUND;
2828                 ExFreePool(fh);
2829                 printf("NDIS: open file %s failed: %d\n", path, error);
2830                 ExFreePool(path);
2831                 free(afilename, M_DEVBUF);
2832                 return;
2833         }
2834
2835         ExFreePool(path);
2836
2837         NDFREE(&nd, NDF_ONLY_PNBUF);
2838
2839         /* Get the file size. */
2840         VOP_GETATTR(nd.ni_vp, vap, td->td_ucred);
2841         VOP_UNLOCK(nd.ni_vp, 0);
2842
2843         fh->nf_vp = nd.ni_vp;
2844         fh->nf_map = NULL;
2845         fh->nf_type = NDIS_FH_TYPE_VFS;
2846         *filehandle = fh;
2847         *filelength = fh->nf_maplen = vap->va_size & 0xFFFFFFFF;
2848         *status = NDIS_STATUS_SUCCESS;
2849 }
2850
2851 static void
2852 NdisMapFile(status, mappedbuffer, filehandle)
2853         ndis_status             *status;
2854         void                    **mappedbuffer;
2855         ndis_handle             filehandle;
2856 {
2857         ndis_fh                 *fh;
2858         struct thread           *td = curthread;
2859         linker_file_t           lf;
2860         caddr_t                 kldstart;
2861         int                     error;
2862         ssize_t                 resid;
2863         struct vnode            *vp;
2864
2865         if (filehandle == NULL) {
2866                 *status = NDIS_STATUS_FAILURE;
2867                 return;
2868         }
2869
2870         fh = (ndis_fh *)filehandle;
2871
2872         if (fh->nf_vp == NULL) {
2873                 *status = NDIS_STATUS_FAILURE;
2874                 return;
2875         }
2876
2877         if (fh->nf_map != NULL) {
2878                 *status = NDIS_STATUS_ALREADY_MAPPED;
2879                 return;
2880         }
2881
2882         if (fh->nf_type == NDIS_FH_TYPE_MODULE) {
2883                 lf = fh->nf_vp;
2884                 if (ndis_find_sym(lf, fh->nf_name, "_start", &kldstart)) {
2885                         *status = NDIS_STATUS_FAILURE;
2886                         return;
2887                 }
2888                 fh->nf_map = kldstart;
2889                 *status = NDIS_STATUS_SUCCESS;
2890                 *mappedbuffer = fh->nf_map;
2891                 return;
2892         }
2893
2894         fh->nf_map = ExAllocatePoolWithTag(NonPagedPool, fh->nf_maplen, 0);
2895
2896         if (fh->nf_map == NULL) {
2897                 *status = NDIS_STATUS_RESOURCES;
2898                 return;
2899         }
2900
2901         vp = fh->nf_vp;
2902         error = vn_rdwr(UIO_READ, vp, fh->nf_map, fh->nf_maplen, 0,
2903             UIO_SYSSPACE, 0, td->td_ucred, NOCRED, &resid, td);
2904
2905         if (error)
2906                 *status = NDIS_STATUS_FAILURE;
2907         else {
2908                 *status = NDIS_STATUS_SUCCESS;
2909                 *mappedbuffer = fh->nf_map;
2910         }
2911 }
2912
2913 static void
2914 NdisUnmapFile(filehandle)
2915         ndis_handle             filehandle;
2916 {
2917         ndis_fh                 *fh;
2918         fh = (ndis_fh *)filehandle;
2919
2920         if (fh->nf_map == NULL)
2921                 return;
2922
2923         if (fh->nf_type == NDIS_FH_TYPE_VFS)
2924                 ExFreePool(fh->nf_map);
2925         fh->nf_map = NULL;
2926 }
2927
2928 static void
2929 NdisCloseFile(filehandle)
2930         ndis_handle             filehandle;
2931 {
2932         struct thread           *td = curthread;
2933         ndis_fh                 *fh;
2934         struct vnode            *vp;
2935
2936         if (filehandle == NULL)
2937                 return;
2938
2939         fh = (ndis_fh *)filehandle;
2940         if (fh->nf_map != NULL) {
2941                 if (fh->nf_type == NDIS_FH_TYPE_VFS)
2942                         ExFreePool(fh->nf_map);
2943                 fh->nf_map = NULL;
2944         }
2945
2946         if (fh->nf_vp == NULL)
2947                 return;
2948
2949         if (fh->nf_type == NDIS_FH_TYPE_VFS) {
2950                 vp = fh->nf_vp;
2951                 vn_close(vp, FREAD, td->td_ucred, td);
2952         }
2953
2954         fh->nf_vp = NULL;
2955         free(fh->nf_name, M_DEVBUF);
2956         ExFreePool(fh);
2957 }
2958
2959 static uint8_t
2960 NdisSystemProcessorCount()
2961 {
2962         return (mp_ncpus);
2963 }
2964
2965 static void
2966 NdisGetCurrentProcessorCounts(idle_count, kernel_and_user, index)
2967         uint32_t                *idle_count;
2968         uint32_t                *kernel_and_user;
2969         uint32_t                *index;
2970 {
2971         struct pcpu             *pcpu;
2972
2973         pcpu = pcpu_find(curthread->td_oncpu);
2974         *index = pcpu->pc_cpuid;
2975         *idle_count = pcpu->pc_cp_time[CP_IDLE];
2976         *kernel_and_user = pcpu->pc_cp_time[CP_INTR];
2977 }
2978
2979 typedef void (*ndis_statusdone_handler)(ndis_handle);
2980 typedef void (*ndis_status_handler)(ndis_handle, ndis_status,
2981     void *, uint32_t);
2982
2983 static void
2984 NdisMIndicateStatusComplete(adapter)
2985         ndis_handle             adapter;
2986 {
2987         ndis_miniport_block     *block;
2988         ndis_statusdone_handler statusdonefunc;
2989
2990         block = (ndis_miniport_block *)adapter;
2991         statusdonefunc = block->nmb_statusdone_func;
2992
2993         MSCALL1(statusdonefunc, adapter);
2994 }
2995
2996 static void
2997 NdisMIndicateStatus(adapter, status, sbuf, slen)
2998         ndis_handle             adapter;
2999         ndis_status             status;
3000         void                    *sbuf;
3001         uint32_t                slen;
3002 {
3003         ndis_miniport_block     *block;
3004         ndis_status_handler     statusfunc;
3005
3006         block = (ndis_miniport_block *)adapter;
3007         statusfunc = block->nmb_status_func;
3008
3009         MSCALL4(statusfunc, adapter, status, sbuf, slen);
3010 }
3011
3012 /*
3013  * The DDK documentation says that you should use IoQueueWorkItem()
3014  * instead of ExQueueWorkItem(). The problem is, IoQueueWorkItem()
3015  * is fundamentally incompatible with NdisScheduleWorkItem(), which
3016  * depends on the API semantics of ExQueueWorkItem(). In our world,
3017  * ExQueueWorkItem() is implemented on top of IoAllocateQueueItem()
3018  * anyway.
3019  *
3020  * There are actually three distinct APIs here. NdisScheduleWorkItem()
3021  * takes a pointer to an NDIS_WORK_ITEM. ExQueueWorkItem() takes a pointer
3022  * to a WORK_QUEUE_ITEM. And finally, IoQueueWorkItem() takes a pointer
3023  * to an opaque work item thingie which you get from IoAllocateWorkItem().
3024  * An NDIS_WORK_ITEM is not the same as a WORK_QUEUE_ITEM. However,
3025  * the NDIS_WORK_ITEM has some opaque storage at the end of it, and we
3026  * (ab)use this storage as a WORK_QUEUE_ITEM, which is what we submit
3027  * to ExQueueWorkItem().
3028  *
3029  * Got all that? (Sheesh.)
3030  */
3031
3032 ndis_status
3033 NdisScheduleWorkItem(work)
3034         ndis_work_item          *work;
3035 {
3036         work_queue_item         *wqi;
3037
3038         wqi = (work_queue_item *)work->nwi_wraprsvd;
3039         ExInitializeWorkItem(wqi,
3040             (work_item_func)work->nwi_func, work->nwi_ctx);
3041         ExQueueWorkItem(wqi, WORKQUEUE_DELAYED);
3042
3043         return (NDIS_STATUS_SUCCESS);
3044 }
3045
3046 static void
3047 NdisCopyFromPacketToPacket(dpkt, doff, reqlen, spkt, soff, cpylen)
3048         ndis_packet             *dpkt;
3049         uint32_t                doff;
3050         uint32_t                reqlen;
3051         ndis_packet             *spkt;
3052         uint32_t                soff;
3053         uint32_t                *cpylen;
3054 {
3055         ndis_buffer             *src, *dst;
3056         char                    *sptr, *dptr;
3057         int                     resid, copied, len, scnt, dcnt;
3058
3059         *cpylen = 0;
3060
3061         src = spkt->np_private.npp_head;
3062         dst = dpkt->np_private.npp_head;
3063
3064         sptr = MmGetMdlVirtualAddress(src);
3065         dptr = MmGetMdlVirtualAddress(dst);
3066         scnt = MmGetMdlByteCount(src);
3067         dcnt = MmGetMdlByteCount(dst);
3068
3069         while (soff) {
3070                 if (MmGetMdlByteCount(src) > soff) {
3071                         sptr += soff;
3072                         scnt = MmGetMdlByteCount(src)- soff;
3073                         break;
3074                 }
3075                 soff -= MmGetMdlByteCount(src);
3076                 src = src->mdl_next;
3077                 if (src == NULL)
3078                         return;
3079                 sptr = MmGetMdlVirtualAddress(src);
3080         }
3081
3082         while (doff) {
3083                 if (MmGetMdlByteCount(dst) > doff) {
3084                         dptr += doff;
3085                         dcnt = MmGetMdlByteCount(dst) - doff;
3086                         break;
3087                 }
3088                 doff -= MmGetMdlByteCount(dst);
3089                 dst = dst->mdl_next;
3090                 if (dst == NULL)
3091                         return;
3092                 dptr = MmGetMdlVirtualAddress(dst);
3093         }
3094
3095         resid = reqlen;
3096         copied = 0;
3097
3098         while(1) {
3099                 if (resid < scnt)
3100                         len = resid;
3101                 else
3102                         len = scnt;
3103                 if (dcnt < len)
3104                         len = dcnt;
3105
3106                 bcopy(sptr, dptr, len);
3107
3108                 copied += len;
3109                 resid -= len;
3110                 if (resid == 0)
3111                         break;
3112
3113                 dcnt -= len;
3114                 if (dcnt == 0) {
3115                         dst = dst->mdl_next;
3116                         if (dst == NULL)
3117                                 break;
3118                         dptr = MmGetMdlVirtualAddress(dst);
3119                         dcnt = MmGetMdlByteCount(dst);
3120                 }
3121
3122                 scnt -= len;
3123                 if (scnt == 0) {
3124                         src = src->mdl_next;
3125                         if (src == NULL)
3126                                 break;
3127                         sptr = MmGetMdlVirtualAddress(src);
3128                         scnt = MmGetMdlByteCount(src);
3129                 }
3130         }
3131
3132         *cpylen = copied;
3133 }
3134
3135 static void
3136 NdisCopyFromPacketToPacketSafe(dpkt, doff, reqlen, spkt, soff, cpylen, prio)
3137         ndis_packet             *dpkt;
3138         uint32_t                doff;
3139         uint32_t                reqlen;
3140         ndis_packet             *spkt;
3141         uint32_t                soff;
3142         uint32_t                *cpylen;
3143         uint32_t                prio;
3144 {
3145         NdisCopyFromPacketToPacket(dpkt, doff, reqlen, spkt, soff, cpylen);
3146 }
3147
3148 static void
3149 NdisIMCopySendPerPacketInfo(dpkt, spkt)
3150         ndis_packet             *dpkt;
3151         ndis_packet             *spkt;
3152 {
3153         memcpy(&dpkt->np_ext, &spkt->np_ext, sizeof(ndis_packet_extension));
3154 }
3155
3156 static ndis_status
3157 NdisMRegisterDevice(handle, devname, symname, majorfuncs, devobj, devhandle)
3158         ndis_handle             handle;
3159         unicode_string          *devname;
3160         unicode_string          *symname;
3161         driver_dispatch         *majorfuncs[];
3162         void                    **devobj;
3163         ndis_handle             *devhandle;
3164 {
3165         uint32_t                status;
3166         device_object           *dobj;
3167
3168         status = IoCreateDevice(handle, 0, devname,
3169             FILE_DEVICE_UNKNOWN, 0, FALSE, &dobj);
3170
3171         if (status == STATUS_SUCCESS) {
3172                 *devobj = dobj;
3173                 *devhandle = dobj;
3174         }
3175
3176         return (status);
3177 }
3178
3179 static ndis_status
3180 NdisMDeregisterDevice(handle)
3181         ndis_handle             handle;
3182 {
3183         IoDeleteDevice(handle);
3184         return (NDIS_STATUS_SUCCESS);
3185 }
3186
3187 static ndis_status
3188 NdisMQueryAdapterInstanceName(name, handle)
3189         unicode_string          *name;
3190         ndis_handle             handle;
3191 {
3192         ndis_miniport_block     *block;
3193         device_t                dev;
3194         ansi_string             as;
3195
3196         block = (ndis_miniport_block *)handle;
3197         dev = block->nmb_physdeviceobj->do_devext;
3198
3199         RtlInitAnsiString(&as, __DECONST(char *, device_get_nameunit(dev)));
3200         if (RtlAnsiStringToUnicodeString(name, &as, TRUE))
3201                 return (NDIS_STATUS_RESOURCES);
3202
3203         return (NDIS_STATUS_SUCCESS);
3204 }
3205
3206 static void
3207 NdisMRegisterUnloadHandler(handle, func)
3208         ndis_handle             handle;
3209         void                    *func;
3210 {
3211 }
3212
3213 static void
3214 dummy()
3215 {
3216         printf("NDIS dummy called...\n");
3217 }
3218
3219 /*
3220  * Note: a couple of entries in this table specify the
3221  * number of arguments as "foo + 1". These are routines
3222  * that accept a 64-bit argument, passed by value. On
3223  * x86, these arguments consume two longwords on the stack,
3224  * so we lie and say there's one additional argument so
3225  * that the wrapping routines will do the right thing.
3226  */
3227
3228 image_patch_table ndis_functbl[] = {
3229         IMPORT_SFUNC(NdisCopyFromPacketToPacket, 6),
3230         IMPORT_SFUNC(NdisCopyFromPacketToPacketSafe, 7),
3231         IMPORT_SFUNC(NdisIMCopySendPerPacketInfo, 2),
3232         IMPORT_SFUNC(NdisScheduleWorkItem, 1),
3233         IMPORT_SFUNC(NdisMIndicateStatusComplete, 1),
3234         IMPORT_SFUNC(NdisMIndicateStatus, 4),
3235         IMPORT_SFUNC(NdisSystemProcessorCount, 0),
3236         IMPORT_SFUNC(NdisGetCurrentProcessorCounts, 3),
3237         IMPORT_SFUNC(NdisUnchainBufferAtBack, 2),
3238         IMPORT_SFUNC(NdisGetFirstBufferFromPacket, 5),
3239         IMPORT_SFUNC(NdisGetFirstBufferFromPacketSafe, 6),
3240         IMPORT_SFUNC(NdisGetBufferPhysicalArraySize, 2),
3241         IMPORT_SFUNC(NdisMGetDeviceProperty, 6),
3242         IMPORT_SFUNC(NdisInitAnsiString, 2),
3243         IMPORT_SFUNC(NdisInitUnicodeString, 2),
3244         IMPORT_SFUNC(NdisWriteConfiguration, 4),
3245         IMPORT_SFUNC(NdisAnsiStringToUnicodeString, 2),
3246         IMPORT_SFUNC(NdisTerminateWrapper, 2),
3247         IMPORT_SFUNC(NdisOpenConfigurationKeyByName, 4),
3248         IMPORT_SFUNC(NdisOpenConfigurationKeyByIndex, 5),
3249         IMPORT_SFUNC(NdisMRemoveMiniport, 1),
3250         IMPORT_SFUNC(NdisInitializeString, 2),
3251         IMPORT_SFUNC(NdisFreeString, 1),
3252         IMPORT_SFUNC(NdisGetCurrentSystemTime, 1),
3253         IMPORT_SFUNC(NdisGetRoutineAddress, 1),
3254         IMPORT_SFUNC(NdisGetSystemUpTime, 1),
3255         IMPORT_SFUNC(NdisGetVersion, 0),
3256         IMPORT_SFUNC(NdisMSynchronizeWithInterrupt, 3),
3257         IMPORT_SFUNC(NdisMAllocateSharedMemoryAsync, 4),
3258         IMPORT_SFUNC(NdisInterlockedInsertHeadList, 3),
3259         IMPORT_SFUNC(NdisInterlockedInsertTailList, 3),
3260         IMPORT_SFUNC(NdisInterlockedRemoveHeadList, 2),
3261         IMPORT_SFUNC(NdisInitializeWrapper, 4),
3262         IMPORT_SFUNC(NdisMRegisterMiniport, 3),
3263         IMPORT_SFUNC(NdisAllocateMemoryWithTag, 3),
3264         IMPORT_SFUNC(NdisAllocateMemory, 4 + 1),
3265         IMPORT_SFUNC(NdisMSetAttributesEx, 5),
3266         IMPORT_SFUNC(NdisCloseConfiguration, 1),
3267         IMPORT_SFUNC(NdisReadConfiguration, 5),
3268         IMPORT_SFUNC(NdisOpenConfiguration, 3),
3269         IMPORT_SFUNC(NdisAcquireSpinLock, 1),
3270         IMPORT_SFUNC(NdisReleaseSpinLock, 1),
3271         IMPORT_SFUNC(NdisDprAcquireSpinLock, 1),
3272         IMPORT_SFUNC(NdisDprReleaseSpinLock, 1),
3273         IMPORT_SFUNC(NdisAllocateSpinLock, 1),
3274         IMPORT_SFUNC(NdisInitializeReadWriteLock, 1),
3275         IMPORT_SFUNC(NdisAcquireReadWriteLock, 3),
3276         IMPORT_SFUNC(NdisReleaseReadWriteLock, 2),
3277         IMPORT_SFUNC(NdisFreeSpinLock, 1),
3278         IMPORT_SFUNC(NdisFreeMemory, 3),
3279         IMPORT_SFUNC(NdisReadPciSlotInformation, 5),
3280         IMPORT_SFUNC(NdisWritePciSlotInformation, 5),
3281         IMPORT_SFUNC_MAP(NdisImmediateReadPciSlotInformation,
3282             NdisReadPciSlotInformation, 5),
3283         IMPORT_SFUNC_MAP(NdisImmediateWritePciSlotInformation,
3284             NdisWritePciSlotInformation, 5),
3285         IMPORT_CFUNC(NdisWriteErrorLogEntry, 0),
3286         IMPORT_SFUNC(NdisMStartBufferPhysicalMapping, 6),
3287         IMPORT_SFUNC(NdisMCompleteBufferPhysicalMapping, 3),
3288         IMPORT_SFUNC(NdisMInitializeTimer, 4),
3289         IMPORT_SFUNC(NdisInitializeTimer, 3),
3290         IMPORT_SFUNC(NdisSetTimer, 2),
3291         IMPORT_SFUNC(NdisMCancelTimer, 2),
3292         IMPORT_SFUNC_MAP(NdisCancelTimer, NdisMCancelTimer, 2),
3293         IMPORT_SFUNC(NdisMSetPeriodicTimer, 2),
3294         IMPORT_SFUNC(NdisMQueryAdapterResources, 4),
3295         IMPORT_SFUNC(NdisMRegisterIoPortRange, 4),
3296         IMPORT_SFUNC(NdisMDeregisterIoPortRange, 4),
3297         IMPORT_SFUNC(NdisReadNetworkAddress, 4),
3298         IMPORT_SFUNC(NdisQueryMapRegisterCount, 2),
3299         IMPORT_SFUNC(NdisMAllocateMapRegisters, 5),
3300         IMPORT_SFUNC(NdisMFreeMapRegisters, 1),
3301         IMPORT_SFUNC(NdisMAllocateSharedMemory, 5),
3302         IMPORT_SFUNC(NdisMMapIoSpace, 4 + 1),
3303         IMPORT_SFUNC(NdisMUnmapIoSpace, 3),
3304         IMPORT_SFUNC(NdisGetCacheFillSize, 0),
3305         IMPORT_SFUNC(NdisMGetDmaAlignment, 1),
3306         IMPORT_SFUNC(NdisMInitializeScatterGatherDma, 3),
3307         IMPORT_SFUNC(NdisAllocatePacketPool, 4),
3308         IMPORT_SFUNC(NdisAllocatePacketPoolEx, 5),
3309         IMPORT_SFUNC(NdisAllocatePacket, 3),
3310         IMPORT_SFUNC(NdisFreePacket, 1),
3311         IMPORT_SFUNC(NdisFreePacketPool, 1),
3312         IMPORT_SFUNC_MAP(NdisDprAllocatePacket, NdisAllocatePacket, 3),
3313         IMPORT_SFUNC_MAP(NdisDprFreePacket, NdisFreePacket, 1),
3314         IMPORT_SFUNC(NdisAllocateBufferPool, 3),
3315         IMPORT_SFUNC(NdisAllocateBuffer, 5),
3316         IMPORT_SFUNC(NdisQueryBuffer, 3),
3317         IMPORT_SFUNC(NdisQueryBufferSafe, 4),
3318         IMPORT_SFUNC(NdisBufferVirtualAddress, 1),
3319         IMPORT_SFUNC(NdisBufferVirtualAddressSafe, 2),
3320         IMPORT_SFUNC(NdisBufferLength, 1),
3321         IMPORT_SFUNC(NdisFreeBuffer, 1),
3322         IMPORT_SFUNC(NdisFreeBufferPool, 1),
3323         IMPORT_SFUNC(NdisInterlockedIncrement, 1),
3324         IMPORT_SFUNC(NdisInterlockedDecrement, 1),
3325         IMPORT_SFUNC(NdisInitializeEvent, 1),
3326         IMPORT_SFUNC(NdisSetEvent, 1),
3327         IMPORT_SFUNC(NdisResetEvent, 1),
3328         IMPORT_SFUNC(NdisWaitEvent, 2),
3329         IMPORT_SFUNC(NdisUnicodeStringToAnsiString, 2),
3330         IMPORT_SFUNC(NdisMPciAssignResources, 3),
3331         IMPORT_SFUNC(NdisMFreeSharedMemory, 5 + 1),
3332         IMPORT_SFUNC(NdisMRegisterInterrupt, 7),
3333         IMPORT_SFUNC(NdisMDeregisterInterrupt, 1),
3334         IMPORT_SFUNC(NdisMRegisterAdapterShutdownHandler, 3),
3335         IMPORT_SFUNC(NdisMDeregisterAdapterShutdownHandler, 1),
3336         IMPORT_SFUNC(NDIS_BUFFER_TO_SPAN_PAGES, 1),
3337         IMPORT_SFUNC(NdisQueryBufferOffset, 3),
3338         IMPORT_SFUNC(NdisAdjustBufferLength, 2),
3339         IMPORT_SFUNC(NdisPacketPoolUsage, 1),
3340         IMPORT_SFUNC(NdisMSleep, 1),
3341         IMPORT_SFUNC(NdisUnchainBufferAtFront, 2),
3342         IMPORT_SFUNC(NdisReadPcmciaAttributeMemory, 4),
3343         IMPORT_SFUNC(NdisWritePcmciaAttributeMemory, 4),
3344         IMPORT_SFUNC(NdisOpenFile, 5 + 1),
3345         IMPORT_SFUNC(NdisMapFile, 3),
3346         IMPORT_SFUNC(NdisUnmapFile, 1),
3347         IMPORT_SFUNC(NdisCloseFile, 1),
3348         IMPORT_SFUNC(NdisMRegisterDevice, 6),
3349         IMPORT_SFUNC(NdisMDeregisterDevice, 1),
3350         IMPORT_SFUNC(NdisMQueryAdapterInstanceName, 2),
3351         IMPORT_SFUNC(NdisMRegisterUnloadHandler, 2),
3352         IMPORT_SFUNC(ndis_timercall, 4),
3353         IMPORT_SFUNC(ndis_asyncmem_complete, 2),
3354         IMPORT_SFUNC(ndis_intr, 2),
3355         IMPORT_SFUNC(ndis_intrhand, 4),
3356
3357         /*
3358          * This last entry is a catch-all for any function we haven't
3359          * implemented yet. The PE import list patching routine will
3360          * use it for any function that doesn't have an explicit match
3361          * in this table.
3362          */
3363
3364         { NULL, (FUNC)dummy, NULL, 0, WINDRV_WRAP_STDCALL },
3365
3366         /* End of list. */
3367
3368         { NULL, NULL, NULL }
3369 };