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_arp.h>
  80 #include <net/ethernet.h>
  81 #include <net/if_dl.h>
  82 #include <net/if_media.h>
  83
  84 #include <machine/atomic.h>
  85 #include <machine/bus.h>
  86 #include <machine/resource.h>
  87
  88 #include <sys/bus.h>
  89 #include <sys/rman.h>
  90
  91 #include <machine/stdarg.h>
  92
  93 #include <net80211/ieee80211_var.h>
  94 #include <net80211/ieee80211_ioctl.h>
  95
  96 #include <dev/pci/pcireg.h>
  97 #include <dev/pci/pcivar.h>
  98
  99 #include <compat/ndis/pe_var.h>
 100 #include <compat/ndis/cfg_var.h>
 101 #include <compat/ndis/resource_var.h>
 102 #include <compat/ndis/ntoskrnl_var.h>
 103 #include <compat/ndis/hal_var.h>
 104 #include <compat/ndis/ndis_var.h>
 105 #include <dev/if_ndis/if_ndisvar.h>
 106
 107 #include <vm/vm.h>
 108 #include <vm/vm_param.h>
 109 #include <vm/pmap.h>
 110 #include <vm/uma.h>
 111 #include <vm/vm_kern.h>
 112 #include <vm/vm_map.h>
 113
 114 static char ndis_filepath[MAXPATHLEN];
 115
 116 SYSCTL_STRING(_hw, OID_AUTO, ndis_filepath, CTLFLAG_RW, ndis_filepath,
 117         MAXPATHLEN, "Path used by NdisOpenFile() to search for files");
 118
 119 static void NdisInitializeWrapper(ndis_handle *,
 120         driver_object *, void *, void *);
 121 static ndis_status NdisMRegisterMiniport(ndis_handle,
 122         ndis_miniport_characteristics *, int);
 123 static ndis_status NdisAllocateMemoryWithTag(void **,
 124         uint32_t, uint32_t);
 125 static ndis_status NdisAllocateMemory(void **,
 126         uint32_t, uint32_t, ndis_physaddr);
 127 static void NdisFreeMemory(void *, uint32_t, uint32_t);
 128 static ndis_status NdisMSetAttributesEx(ndis_handle, ndis_handle,
 129         uint32_t, uint32_t, ndis_interface_type);
 130 static void NdisOpenConfiguration(ndis_status *,
 131         ndis_handle *, ndis_handle);
 132 static void NdisOpenConfigurationKeyByIndex(ndis_status *,
 133         ndis_handle, uint32_t, unicode_string *, ndis_handle *);
 134 static void NdisOpenConfigurationKeyByName(ndis_status *,
 135         ndis_handle, unicode_string *, ndis_handle *);
 136 static ndis_status ndis_encode_parm(ndis_miniport_block *,
 137         struct sysctl_oid *, ndis_parm_type, ndis_config_parm **);
 138 static ndis_status ndis_decode_parm(ndis_miniport_block *,
 139         ndis_config_parm *, char *);
 140 static void NdisReadConfiguration(ndis_status *, ndis_config_parm **,
 141         ndis_handle, unicode_string *, ndis_parm_type);
 142 static void NdisWriteConfiguration(ndis_status *, ndis_handle,
 143         unicode_string *, ndis_config_parm *);
 144 static void NdisCloseConfiguration(ndis_handle);
 145 static void NdisAllocateSpinLock(ndis_spin_lock *);
 146 static void NdisFreeSpinLock(ndis_spin_lock *);
 147 static void NdisAcquireSpinLock(ndis_spin_lock *);
 148 static void NdisReleaseSpinLock(ndis_spin_lock *);
 149 static void NdisDprAcquireSpinLock(ndis_spin_lock *);
 150 static void NdisDprReleaseSpinLock(ndis_spin_lock *);
 151 static void NdisInitializeReadWriteLock(ndis_rw_lock *);
 152 static void NdisAcquireReadWriteLock(ndis_rw_lock *,
 153         uint8_t, ndis_lock_state *);
 154 static void NdisReleaseReadWriteLock(ndis_rw_lock *, ndis_lock_state *);
 155 static uint32_t NdisReadPciSlotInformation(ndis_handle, uint32_t,
 156         uint32_t, void *, uint32_t);
 157 static uint32_t NdisWritePciSlotInformation(ndis_handle, uint32_t,
 158         uint32_t, void *, uint32_t);
 159 static void NdisWriteErrorLogEntry(ndis_handle, ndis_error_code, uint32_t, ...);
 160 static void ndis_map_cb(void *, bus_dma_segment_t *, int, int);
 161 static void NdisMStartBufferPhysicalMapping(ndis_handle,
 162         ndis_buffer *, uint32_t, uint8_t, ndis_paddr_unit *, uint32_t *);
 163 static void NdisMCompleteBufferPhysicalMapping(ndis_handle,
 164         ndis_buffer *, uint32_t);
 165 static void NdisMInitializeTimer(ndis_miniport_timer *, ndis_handle,
 166         ndis_timer_function, void *);
 167 static void NdisInitializeTimer(ndis_timer *,
 168         ndis_timer_function, void *);
 169 static void NdisSetTimer(ndis_timer *, uint32_t);
 170 static void NdisMSetPeriodicTimer(ndis_miniport_timer *, uint32_t);
 171 static void NdisMCancelTimer(ndis_timer *, uint8_t *);
 172 static void ndis_timercall(kdpc *, ndis_miniport_timer *,
 173         void *, void *);
 174 static void NdisMQueryAdapterResources(ndis_status *, ndis_handle,
 175         ndis_resource_list *, uint32_t *);
 176 static ndis_status NdisMRegisterIoPortRange(void **,
 177         ndis_handle, uint32_t, uint32_t);
 178 static void NdisMDeregisterIoPortRange(ndis_handle,
 179         uint32_t, uint32_t, void *);
 180 static void NdisReadNetworkAddress(ndis_status *, void **,
 181         uint32_t *, ndis_handle);
 182 static ndis_status NdisQueryMapRegisterCount(uint32_t, uint32_t *);
 183 static ndis_status NdisMAllocateMapRegisters(ndis_handle,
 184         uint32_t, uint8_t, uint32_t, uint32_t);
 185 static void NdisMFreeMapRegisters(ndis_handle);
 186 static void ndis_mapshared_cb(void *, bus_dma_segment_t *, int, int);
 187 static void NdisMAllocateSharedMemory(ndis_handle, uint32_t,
 188         uint8_t, void **, ndis_physaddr *);
 189 static void ndis_asyncmem_complete(device_object *, void *);
 190 static ndis_status NdisMAllocateSharedMemoryAsync(ndis_handle,
 191         uint32_t, uint8_t, void *);
 192 static void NdisMFreeSharedMemory(ndis_handle, uint32_t,
 193         uint8_t, void *, ndis_physaddr);
 194 static ndis_status NdisMMapIoSpace(void **, ndis_handle,
 195         ndis_physaddr, uint32_t);
 196 static void NdisMUnmapIoSpace(ndis_handle, void *, uint32_t);
 197 static uint32_t NdisGetCacheFillSize(void);
 198 static uint32_t NdisMGetDmaAlignment(ndis_handle);
 199 static ndis_status NdisMInitializeScatterGatherDma(ndis_handle,
 200         uint8_t, uint32_t);
 201 static void NdisUnchainBufferAtFront(ndis_packet *, ndis_buffer **);
 202 static void NdisUnchainBufferAtBack(ndis_packet *, ndis_buffer **);
 203 static void NdisAllocateBufferPool(ndis_status *,
 204         ndis_handle *, uint32_t);
 205 static void NdisFreeBufferPool(ndis_handle);
 206 static void NdisAllocateBuffer(ndis_status *, ndis_buffer **,
 207         ndis_handle, void *, uint32_t);
 208 static void NdisFreeBuffer(ndis_buffer *);
 209 static uint32_t NdisBufferLength(ndis_buffer *);
 210 static void NdisQueryBuffer(ndis_buffer *, void **, uint32_t *);
 211 static void NdisQueryBufferSafe(ndis_buffer *, void **,
 212         uint32_t *, uint32_t);
 213 static void *NdisBufferVirtualAddress(ndis_buffer *);
 214 static void *NdisBufferVirtualAddressSafe(ndis_buffer *, uint32_t);
 215 static void NdisAdjustBufferLength(ndis_buffer *, int);
 216 static uint32_t NdisInterlockedIncrement(uint32_t *);
 217 static uint32_t NdisInterlockedDecrement(uint32_t *);
 218 static void NdisInitializeEvent(ndis_event *);
 219 static void NdisSetEvent(ndis_event *);
 220 static void NdisResetEvent(ndis_event *);
 221 static uint8_t NdisWaitEvent(ndis_event *, uint32_t);
 222 static ndis_status NdisUnicodeStringToAnsiString(ansi_string *,
 223         unicode_string *);
 224 static ndis_status
 225         NdisAnsiStringToUnicodeString(unicode_string *, ansi_string *);
 226 static ndis_status NdisMPciAssignResources(ndis_handle,
 227         uint32_t, ndis_resource_list **);
 228 static ndis_status NdisMRegisterInterrupt(ndis_miniport_interrupt *,
 229         ndis_handle, uint32_t, uint32_t, uint8_t,
 230         uint8_t, ndis_interrupt_mode);
 231 static void NdisMDeregisterInterrupt(ndis_miniport_interrupt *);
 232 static void NdisMRegisterAdapterShutdownHandler(ndis_handle, void *,
 233         ndis_shutdown_handler);
 234 static void NdisMDeregisterAdapterShutdownHandler(ndis_handle);
 235 static uint32_t NDIS_BUFFER_TO_SPAN_PAGES(ndis_buffer *);
 236 static void NdisGetBufferPhysicalArraySize(ndis_buffer *,
 237         uint32_t *);
 238 static void NdisQueryBufferOffset(ndis_buffer *,
 239         uint32_t *, uint32_t *);
 240 static uint32_t NdisReadPcmciaAttributeMemory(ndis_handle,
 241         uint32_t, void *, uint32_t);
 242 static uint32_t NdisWritePcmciaAttributeMemory(ndis_handle,
 243         uint32_t, void *, uint32_t);
 244 static list_entry *NdisInterlockedInsertHeadList(list_entry *,
 245         list_entry *, ndis_spin_lock *);
 246 static list_entry *NdisInterlockedRemoveHeadList(list_entry *,
 247         ndis_spin_lock *);
 248 static list_entry *NdisInterlockedInsertTailList(list_entry *,
 249         list_entry *, ndis_spin_lock *);
 250 static uint8_t
 251         NdisMSynchronizeWithInterrupt(ndis_miniport_interrupt *,
 252         void *, void *);
 253 static void NdisGetCurrentSystemTime(uint64_t *);
 254 static void NdisGetSystemUpTime(uint32_t *);
 255 static void NdisInitializeString(unicode_string *, char *);
 256 static void NdisInitAnsiString(ansi_string *, char *);
 257 static void NdisInitUnicodeString(unicode_string *, uint16_t *);
 258 static void NdisFreeString(unicode_string *);
 259 static ndis_status NdisMRemoveMiniport(ndis_handle *);
 260 static void NdisTerminateWrapper(ndis_handle, void *);
 261 static void NdisMGetDeviceProperty(ndis_handle, device_object **,
 262         device_object **, device_object **, cm_resource_list *,
 263         cm_resource_list *);
 264 static void NdisGetFirstBufferFromPacket(ndis_packet *,
 265         ndis_buffer **, void **, uint32_t *, uint32_t *);
 266 static void NdisGetFirstBufferFromPacketSafe(ndis_packet *,
 267         ndis_buffer **, void **, uint32_t *, uint32_t *, uint32_t);
 268 static int ndis_find_sym(linker_file_t, char *, char *, caddr_t *);
 269 static void NdisOpenFile(ndis_status *, ndis_handle *, uint32_t *,
 270         unicode_string *, ndis_physaddr);
 271 static void NdisMapFile(ndis_status *, void **, ndis_handle);
 272 static void NdisUnmapFile(ndis_handle);
 273 static void NdisCloseFile(ndis_handle);
 274 static uint8_t NdisSystemProcessorCount(void);
 275 static void NdisMIndicateStatusComplete(ndis_handle);
 276 static void NdisMIndicateStatus(ndis_handle, ndis_status,
 277         void *, uint32_t);
 278 static uint8_t ndis_intr(kinterrupt *, void *);
 279 static void ndis_intrhand(kdpc *, ndis_miniport_interrupt *, void *, void *);
 280 static funcptr ndis_findwrap(funcptr);
 281 static void NdisCopyFromPacketToPacket(ndis_packet *,
 282         uint32_t, uint32_t, ndis_packet *, uint32_t, uint32_t *);
 283 static void NdisCopyFromPacketToPacketSafe(ndis_packet *,
 284         uint32_t, uint32_t, ndis_packet *, uint32_t, uint32_t *, uint32_t);
 285 static void NdisIMCopySendPerPacketInfo(ndis_packet *, ndis_packet *);
 286 static ndis_status NdisMRegisterDevice(ndis_handle,
 287         unicode_string *, unicode_string *, driver_dispatch **,
 288         void **, ndis_handle *);
 289 static ndis_status NdisMDeregisterDevice(ndis_handle);
 290 static ndis_status
 291         NdisMQueryAdapterInstanceName(unicode_string *, ndis_handle);
 292 static void NdisMRegisterUnloadHandler(ndis_handle, void *);
 293 static void dummy(void);
 294
 295 /*
 296  * Some really old drivers do not properly check the return value
 297  * from NdisAllocatePacket() and NdisAllocateBuffer() and will
 298  * sometimes allocate few more buffers/packets that they originally
 299  * requested when they created the pool. To prevent this from being
 300  * a problem, we allocate a few extra buffers/packets beyond what
 301  * the driver asks for. This #define controls how many.
 302  */
 303 #define NDIS_POOL_EXTRA         16
 304
 305 int
 306 ndis_libinit()
 307 {
 308         image_patch_table       *patch;
 309
 310         strcpy(ndis_filepath, "/compat/ndis");
 311
 312         patch = ndis_functbl;
 313         while (patch->ipt_func != NULL) {
 314                 windrv_wrap((funcptr)patch->ipt_func,
 315                     (funcptr *)&patch->ipt_wrap,
 316                     patch->ipt_argcnt, patch->ipt_ftype);
 317                 patch++;
 318         }
 319
 320         return(0);
 321 }
 322
 323 int
 324 ndis_libfini()
 325 {
 326         image_patch_table       *patch;
 327
 328         patch = ndis_functbl;
 329         while (patch->ipt_func != NULL) {
 330                 windrv_unwrap(patch->ipt_wrap);
 331                 patch++;
 332         }
 333
 334         return(0);
 335 }
 336
 337 static funcptr
 338 ndis_findwrap(func)
 339         funcptr                 func;
 340 {
 341         image_patch_table       *patch;
 342
 343         patch = ndis_functbl;
 344         while (patch->ipt_func != NULL) {
 345                 if ((funcptr)patch->ipt_func == func)
 346                         return((funcptr)patch->ipt_wrap);
 347                 patch++;
 348         }
 349
 350         return(NULL);
 351 }
 352
 353 /*
 354  * This routine does the messy Windows Driver Model device attachment
 355  * stuff on behalf of NDIS drivers. We register our own AddDevice
 356  * routine here
 357  */
 358 static void
 359 NdisInitializeWrapper(wrapper, drv, path, unused)
 360         ndis_handle             *wrapper;
 361         driver_object           *drv;
 362         void                    *path;
 363         void                    *unused;
 364 {
 365         /*
 366          * As of yet, I haven't come up with a compelling
 367          * reason to define a private NDIS wrapper structure,
 368          * so we use a pointer to the driver object as the
 369          * wrapper handle. The driver object has the miniport
 370          * characteristics struct for this driver hung off it
 371          * via IoAllocateDriverObjectExtension(), and that's
 372          * really all the private data we need.
 373          */
 374
 375         *wrapper = drv;
 376
 377         /*
 378          * If this was really Windows, we'd be registering dispatch
 379          * routines for the NDIS miniport module here, but we're
 380          * not Windows so all we really need to do is set up an
 381          * AddDevice function that'll be invoked when a new device
 382          * instance appears.
 383          */
 384
 385         drv->dro_driverext->dre_adddevicefunc = NdisAddDevice;
 386
 387         return;
 388 }
 389
 390 static void
 391 NdisTerminateWrapper(handle, syspec)
 392         ndis_handle             handle;
 393         void                    *syspec;
 394 {
 395         /* Nothing to see here, move along. */
 396         return;
 397 }
 398
 399 static ndis_status
 400 NdisMRegisterMiniport(handle, characteristics, len)
 401         ndis_handle             handle;
 402         ndis_miniport_characteristics *characteristics;
 403         int                     len;
 404 {
 405         ndis_miniport_characteristics   *ch = NULL;
 406         driver_object           *drv;
 407
 408         drv = (driver_object *)handle;
 409
 410         /*
 411          * We need to save the NDIS miniport characteristics
 412          * somewhere. This data is per-driver, not per-device
 413          * (all devices handled by the same driver have the
 414          * same characteristics) so we hook it onto the driver
 415          * object using IoAllocateDriverObjectExtension().
 416          * The extra extension info is automagically deleted when
 417          * the driver is unloaded (see windrv_unload()).
 418          */
 419
 420         if (IoAllocateDriverObjectExtension(drv, (void *)1,
 421             sizeof(ndis_miniport_characteristics), (void **)&ch) !=
 422             STATUS_SUCCESS) {
 423                 return(NDIS_STATUS_RESOURCES);
 424         }
 425
 426         bzero((char *)ch, sizeof(ndis_miniport_characteristics));
 427
 428         bcopy((char *)characteristics, (char *)ch, len);
 429
 430         if (ch->nmc_version_major < 5 || ch->nmc_version_minor < 1) {
 431                 ch->nmc_shutdown_handler = NULL;
 432                 ch->nmc_canceltxpkts_handler = NULL;
 433                 ch->nmc_pnpevent_handler = NULL;
 434         }
 435
 436         return(NDIS_STATUS_SUCCESS);
 437 }
 438
 439 static ndis_status
 440 NdisAllocateMemoryWithTag(vaddr, len, tag)
 441         void                    **vaddr;
 442         uint32_t                len;
 443         uint32_t                tag;
 444 {
 445         void                    *mem;
 446
 447         mem = ExAllocatePoolWithTag(NonPagedPool, len, tag);
 448         if (mem == NULL) {
 449                 return(NDIS_STATUS_RESOURCES);
 450         }
 451         *vaddr = mem;
 452
 453         return(NDIS_STATUS_SUCCESS);
 454 }
 455
 456 static ndis_status
 457 NdisAllocateMemory(vaddr, len, flags, highaddr)
 458         void                    **vaddr;
 459         uint32_t                len;
 460         uint32_t                flags;
 461         ndis_physaddr           highaddr;
 462 {
 463         void                    *mem;
 464
 465         mem = ExAllocatePoolWithTag(NonPagedPool, len, 0);
 466         if (mem == NULL)
 467                 return(NDIS_STATUS_RESOURCES);
 468         *vaddr = mem;
 469
 470         return(NDIS_STATUS_SUCCESS);
 471 }
 472
 473 static void
 474 NdisFreeMemory(vaddr, len, flags)
 475         void                    *vaddr;
 476         uint32_t                len;
 477         uint32_t                flags;
 478 {
 479         if (len == 0)
 480                 return;
 481
 482         ExFreePool(vaddr);
 483
 484         return;
 485 }
 486
 487 static ndis_status
 488 NdisMSetAttributesEx(adapter_handle, adapter_ctx, hangsecs,
 489                         flags, iftype)
 490         ndis_handle                     adapter_handle;
 491         ndis_handle                     adapter_ctx;
 492         uint32_t                        hangsecs;
 493         uint32_t                        flags;
 494         ndis_interface_type             iftype;
 495 {
 496         ndis_miniport_block             *block;
 497
 498         /*
 499          * Save the adapter context, we need it for calling
 500          * the driver's internal functions.
 501          */
 502         block = (ndis_miniport_block *)adapter_handle;
 503         block->nmb_miniportadapterctx = adapter_ctx;
 504         block->nmb_checkforhangsecs = hangsecs;
 505         block->nmb_flags = flags;
 506
 507         return(NDIS_STATUS_SUCCESS);
 508 }
 509
 510 static void
 511 NdisOpenConfiguration(status, cfg, wrapctx)
 512         ndis_status             *status;
 513         ndis_handle             *cfg;
 514         ndis_handle             wrapctx;
 515 {
 516         *cfg = wrapctx;
 517         *status = NDIS_STATUS_SUCCESS;
 518
 519         return;
 520 }
 521
 522 static void
 523 NdisOpenConfigurationKeyByName(status, cfg, subkey, subhandle)
 524         ndis_status             *status;
 525         ndis_handle             cfg;
 526         unicode_string          *subkey;
 527         ndis_handle             *subhandle;
 528 {
 529         *subhandle = cfg;
 530         *status = NDIS_STATUS_SUCCESS;
 531
 532         return;
 533 }
 534
 535 static void
 536 NdisOpenConfigurationKeyByIndex(status, cfg, idx, subkey, subhandle)
 537         ndis_status             *status;
 538         ndis_handle             cfg;
 539         uint32_t                idx;
 540         unicode_string          *subkey;
 541         ndis_handle             *subhandle;
 542 {
 543         *status = NDIS_STATUS_FAILURE;
 544
 545         return;
 546 }
 547
 548 static ndis_status
 549 ndis_encode_parm(block, oid, type, parm)
 550         ndis_miniport_block     *block;
 551         struct sysctl_oid       *oid;
 552         ndis_parm_type          type;
 553         ndis_config_parm        **parm;
 554 {
 555         ndis_config_parm        *p;
 556         ndis_parmlist_entry     *np;
 557         unicode_string          *us;
 558         ansi_string             as;
 559         int                     base = 0;
 560         uint32_t                val;
 561         char                    tmp[32];
 562
 563         np = ExAllocatePoolWithTag(NonPagedPool,
 564             sizeof(ndis_parmlist_entry), 0);
 565         if (np == NULL)
 566                 return(NDIS_STATUS_RESOURCES);
 567         InsertHeadList((&block->nmb_parmlist), (&np->np_list));
 568         *parm = p = &np->np_parm;
 569
 570         switch(type) {
 571         case ndis_parm_string:
 572                 /* See if this might be a number. */
 573                 val = strtoul((char *)oid->oid_arg1, NULL, 10);
 574                 us = &p->ncp_parmdata.ncp_stringdata;
 575                 p->ncp_type = ndis_parm_string;
 576                 if (val) {
 577                         snprintf(tmp, 32, "%x", val);
 578                         RtlInitAnsiString(&as, tmp);
 579                 } else {
 580                         RtlInitAnsiString(&as, (char *)oid->oid_arg1);
 581                 }
 582
 583                 if (RtlAnsiStringToUnicodeString(us, &as, TRUE)) {
 584                         ExFreePool(np);
 585                         return(NDIS_STATUS_RESOURCES);
 586                 }
 587                 break;
 588         case ndis_parm_int:
 589                 if (strncmp((char *)oid->oid_arg1, "0x", 2) == 0)
 590                         base = 16;
 591                 else
 592                         base = 10;
 593                 p->ncp_type = ndis_parm_int;
 594                 p->ncp_parmdata.ncp_intdata =
 595                     strtol((char *)oid->oid_arg1, NULL, base);
 596                 break;
 597         case ndis_parm_hexint:
 598 #ifdef notdef
 599                 if (strncmp((char *)oid->oid_arg1, "0x", 2) == 0)
 600                         base = 16;
 601                 else
 602                         base = 10;
 603 #endif
 604                 base = 16;
 605                 p->ncp_type = ndis_parm_hexint;
 606                 p->ncp_parmdata.ncp_intdata =
 607                     strtoul((char *)oid->oid_arg1, NULL, base);
 608                 break;
 609         default:
 610                 return(NDIS_STATUS_FAILURE);
 611                 break;
 612         }
 613
 614         return(NDIS_STATUS_SUCCESS);
 615 }
 616
 617 static void
 618 NdisReadConfiguration(status, parm, cfg, key, type)
 619         ndis_status             *status;
 620         ndis_config_parm        **parm;
 621         ndis_handle             cfg;
 622         unicode_string          *key;
 623         ndis_parm_type          type;
 624 {
 625         char                    *keystr = NULL;
 626         ndis_miniport_block     *block;
 627         struct ndis_softc       *sc;
 628         struct sysctl_oid       *oidp;
 629         struct sysctl_ctx_entry *e;
 630         ansi_string             as;
 631
 632         block = (ndis_miniport_block *)cfg;
 633         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 634
 635         if (key->us_len == 0 || key->us_buf == NULL) {
 636                 *status = NDIS_STATUS_FAILURE;
 637                 return;
 638         }
 639
 640         if (RtlUnicodeStringToAnsiString(&as, key, TRUE)) {
 641                 *status = NDIS_STATUS_RESOURCES;
 642                 return;
 643         }
 644
 645         keystr = as.as_buf;
 646
 647         /*
 648          * See if registry key is already in a list of known keys
 649          * included with the driver.
 650          */
 651 #if __FreeBSD_version < 502113
 652         TAILQ_FOREACH(e, &sc->ndis_ctx, link) {
 653 #else
 654         TAILQ_FOREACH(e, device_get_sysctl_ctx(sc->ndis_dev), link) {
 655 #endif
 656                 oidp = e->entry;
 657                 if (strcasecmp(oidp->oid_name, keystr) == 0) {
 658                         if (strcmp((char *)oidp->oid_arg1, "UNSET") == 0) {
 659                                 RtlFreeAnsiString(&as);
 660                                 *status = NDIS_STATUS_FAILURE;
 661                                 return;
 662                         }
 663
 664                         *status = ndis_encode_parm(block, oidp, type, parm);
 665                         RtlFreeAnsiString(&as);
 666                         return;
 667                 }
 668         }
 669
 670         /*
 671          * If the key didn't match, add it to the list of dynamically
 672          * created ones. Sometimes, drivers refer to registry keys
 673          * that aren't documented in their .INF files. These keys
 674          * are supposed to be created by some sort of utility or
 675          * control panel snap-in that comes with the driver software.
 676          * Sometimes it's useful to be able to manipulate these.
 677          * If the driver requests the key in the form of a string,
 678          * make its default value an empty string, otherwise default
 679          * it to "0".
 680          */
 681
 682         if (type == ndis_parm_int || type == ndis_parm_hexint)
 683                 ndis_add_sysctl(sc, keystr, "(dynamic integer key)",
 684                     "UNSET", CTLFLAG_RW);
 685         else
 686                 ndis_add_sysctl(sc, keystr, "(dynamic string key)",
 687                     "UNSET", CTLFLAG_RW);
 688
 689         RtlFreeAnsiString(&as);
 690         *status = NDIS_STATUS_FAILURE;
 691
 692         return;
 693 }
 694
 695 static ndis_status
 696 ndis_decode_parm(block, parm, val)
 697         ndis_miniport_block     *block;
 698         ndis_config_parm        *parm;
 699         char                    *val;
 700 {
 701         unicode_string          *ustr;
 702         ansi_string             as;
 703
 704         switch(parm->ncp_type) {
 705         case ndis_parm_string:
 706                 ustr = &parm->ncp_parmdata.ncp_stringdata;
 707                 if (RtlUnicodeStringToAnsiString(&as, ustr, TRUE))
 708                         return(NDIS_STATUS_RESOURCES);
 709                 bcopy(as.as_buf, val, as.as_len);
 710                 RtlFreeAnsiString(&as);
 711                 break;
 712         case ndis_parm_int:
 713                 sprintf(val, "%d", parm->ncp_parmdata.ncp_intdata);
 714                 break;
 715         case ndis_parm_hexint:
 716                 sprintf(val, "%xu", parm->ncp_parmdata.ncp_intdata);
 717                 break;
 718         default:
 719                 return(NDIS_STATUS_FAILURE);
 720                 break;
 721         }
 722         return(NDIS_STATUS_SUCCESS);
 723 }
 724
 725 static void
 726 NdisWriteConfiguration(status, cfg, key, parm)
 727         ndis_status             *status;
 728         ndis_handle             cfg;
 729         unicode_string          *key;
 730         ndis_config_parm        *parm;
 731 {
 732         ansi_string             as;
 733         char                    *keystr = NULL;
 734         ndis_miniport_block     *block;
 735         struct ndis_softc       *sc;
 736         struct sysctl_oid       *oidp;
 737         struct sysctl_ctx_entry *e;
 738         char                    val[256];
 739
 740         block = (ndis_miniport_block *)cfg;
 741         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 742
 743         if (RtlUnicodeStringToAnsiString(&as, key, TRUE)) {
 744                 *status = NDIS_STATUS_RESOURCES;
 745                 return;
 746         }
 747
 748         keystr = as.as_buf;
 749
 750         /* Decode the parameter into a string. */
 751         bzero(val, sizeof(val));
 752         *status = ndis_decode_parm(block, parm, val);
 753         if (*status != NDIS_STATUS_SUCCESS) {
 754                 RtlFreeAnsiString(&as);
 755                 return;
 756         }
 757
 758         /* See if the key already exists. */
 759
 760 #if __FreeBSD_version < 502113
 761         TAILQ_FOREACH(e, &sc->ndis_ctx, link) {
 762 #else
 763         TAILQ_FOREACH(e, device_get_sysctl_ctx(sc->ndis_dev), link) {
 764 #endif
 765                 oidp = e->entry;
 766                 if (strcasecmp(oidp->oid_name, keystr) == 0) {
 767                         /* Found it, set the value. */
 768                         strcpy((char *)oidp->oid_arg1, val);
 769                         RtlFreeAnsiString(&as);
 770                         return;
 771                 }
 772         }
 773
 774         /* Not found, add a new key with the specified value. */
 775         ndis_add_sysctl(sc, keystr, "(dynamically set key)",
 776                     val, CTLFLAG_RW);
 777
 778         RtlFreeAnsiString(&as);
 779         *status = NDIS_STATUS_SUCCESS;
 780         return;
 781 }
 782
 783 static void
 784 NdisCloseConfiguration(cfg)
 785         ndis_handle             cfg;
 786 {
 787         list_entry              *e;
 788         ndis_parmlist_entry     *pe;
 789         ndis_miniport_block     *block;
 790         ndis_config_parm        *p;
 791
 792         block = (ndis_miniport_block *)cfg;
 793
 794         while (!IsListEmpty(&block->nmb_parmlist)) {
 795                 e = RemoveHeadList(&block->nmb_parmlist);
 796                 pe = CONTAINING_RECORD(e, ndis_parmlist_entry, np_list);
 797                 p = &pe->np_parm;
 798                 if (p->ncp_type == ndis_parm_string)
 799                         RtlFreeUnicodeString(&p->ncp_parmdata.ncp_stringdata);
 800                 ExFreePool(e);
 801         }
 802
 803         return;
 804 }
 805
 806 /*
 807  * Initialize a Windows spinlock.
 808  */
 809 static void
 810 NdisAllocateSpinLock(lock)
 811         ndis_spin_lock          *lock;
 812 {
 813         KeInitializeSpinLock(&lock->nsl_spinlock);
 814         lock->nsl_kirql = 0;
 815
 816         return;
 817 }
 818
 819 /*
 820  * Destroy a Windows spinlock. This is a no-op for now. There are two reasons
 821  * for this. One is that it's sort of superfluous: we don't have to do anything
 822  * special to deallocate the spinlock. The other is that there are some buggy
 823  * drivers which call NdisFreeSpinLock() _after_ calling NdisFreeMemory() on
 824  * the block of memory in which the spinlock resides. (Yes, ADMtek, I'm
 825  * talking to you.)
 826  */
 827 static void
 828 NdisFreeSpinLock(lock)
 829         ndis_spin_lock          *lock;
 830 {
 831 #ifdef notdef
 832         KeInitializeSpinLock(&lock->nsl_spinlock);
 833         lock->nsl_kirql = 0;
 834 #endif
 835         return;
 836 }
 837
 838 /*
 839  * Acquire a spinlock from IRQL <= DISPATCH_LEVEL.
 840  */
 841
 842 static void
 843 NdisAcquireSpinLock(lock)
 844         ndis_spin_lock          *lock;
 845 {
 846         KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
 847         return;
 848 }
 849
 850 /*
 851  * Release a spinlock from IRQL == DISPATCH_LEVEL.
 852  */
 853
 854 static void
 855 NdisReleaseSpinLock(lock)
 856         ndis_spin_lock          *lock;
 857 {
 858         KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
 859         return;
 860 }
 861
 862 /*
 863  * Acquire a spinlock when already running at IRQL == DISPATCH_LEVEL.
 864  */
 865 static void
 866 NdisDprAcquireSpinLock(lock)
 867         ndis_spin_lock          *lock;
 868 {
 869         KeAcquireSpinLockAtDpcLevel(&lock->nsl_spinlock);
 870         return;
 871 }
 872
 873 /*
 874  * Release a spinlock without leaving IRQL == DISPATCH_LEVEL.
 875  */
 876 static void
 877 NdisDprReleaseSpinLock(lock)
 878         ndis_spin_lock          *lock;
 879 {
 880         KeReleaseSpinLockFromDpcLevel(&lock->nsl_spinlock);
 881         return;
 882 }
 883
 884 static void
 885 NdisInitializeReadWriteLock(lock)
 886         ndis_rw_lock            *lock;
 887 {
 888         KeInitializeSpinLock(&lock->nrl_spinlock);
 889         bzero((char *)&lock->nrl_rsvd, sizeof(lock->nrl_rsvd));
 890         return;
 891 }
 892
 893 static void
 894 NdisAcquireReadWriteLock(lock, writeacc, state)
 895         ndis_rw_lock            *lock;
 896         uint8_t                 writeacc;
 897         ndis_lock_state         *state;
 898 {
 899         if (writeacc == TRUE) {
 900                 KeAcquireSpinLock(&lock->nrl_spinlock, &state->nls_oldirql);
 901                 lock->nrl_rsvd[0]++;
 902         } else
 903                 lock->nrl_rsvd[1]++;
 904
 905         return;
 906 }
 907
 908 static void
 909 NdisReleaseReadWriteLock(lock, state)
 910         ndis_rw_lock            *lock;
 911         ndis_lock_state         *state;
 912 {
 913         if (lock->nrl_rsvd[0]) {
 914                 lock->nrl_rsvd[0]--;
 915                 KeReleaseSpinLock(&lock->nrl_spinlock, state->nls_oldirql);
 916         } else
 917                 lock->nrl_rsvd[1]--;
 918
 919         return;
 920 }
 921
 922 static uint32_t
 923 NdisReadPciSlotInformation(adapter, slot, offset, buf, len)
 924         ndis_handle             adapter;
 925         uint32_t                slot;
 926         uint32_t                offset;
 927         void                    *buf;
 928         uint32_t                len;
 929 {
 930         ndis_miniport_block     *block;
 931         int                     i;
 932         char                    *dest;
 933         device_t                dev;
 934
 935         block = (ndis_miniport_block *)adapter;
 936         dest = buf;
 937         if (block == NULL)
 938                 return(0);
 939
 940         dev = block->nmb_physdeviceobj->do_devext;
 941
 942         /*
 943          * I have a test system consisting of a Sun w2100z
 944          * dual 2.4Ghz Opteron machine and an Atheros 802.11a/b/g
 945          * "Aries" miniPCI NIC. (The NIC is installed in the
 946          * machine using a miniPCI to PCI bus adapter card.)
 947          * When running in SMP mode, I found that
 948          * performing a large number of consecutive calls to
 949          * NdisReadPciSlotInformation() would result in a
 950          * sudden system reset (or in some cases a freeze).
 951          * My suspicion is that the multiple reads are somehow
 952          * triggering a fatal PCI bus error that leads to a
 953          * machine check. The 1us delay in the loop below
 954          * seems to prevent this problem.
 955          */
 956
 957         for (i = 0; i < len; i++) {
 958                 DELAY(1);
 959                 dest[i] = pci_read_config(dev, i + offset, 1);
 960         }
 961
 962         return(len);
 963 }
 964
 965 static uint32_t
 966 NdisWritePciSlotInformation(adapter, slot, offset, buf, len)
 967         ndis_handle             adapter;
 968         uint32_t                slot;
 969         uint32_t                offset;
 970         void                    *buf;
 971         uint32_t                len;
 972 {
 973         ndis_miniport_block     *block;
 974         int                     i;
 975         char                    *dest;
 976         device_t                dev;
 977
 978         block = (ndis_miniport_block *)adapter;
 979         dest = buf;
 980
 981         if (block == NULL)
 982                 return(0);
 983
 984         dev = block->nmb_physdeviceobj->do_devext;
 985         for (i = 0; i < len; i++) {
 986                 DELAY(1);
 987                 pci_write_config(dev, i + offset, dest[i], 1);
 988         }
 989
 990         return(len);
 991 }
 992
 993 /*
 994  * The errorlog routine uses a variable argument list, so we
 995  * have to declare it this way.
 996  */
 997
 998 #define ERRMSGLEN 512
 999 static void
1000 NdisWriteErrorLogEntry(ndis_handle adapter, ndis_error_code code,
1001         uint32_t numerrors, ...)
1002 {
1003         ndis_miniport_block     *block;
1004         va_list                 ap;
1005         int                     i, error;
1006         char                    *str = NULL;
1007         uint16_t                flags;
1008         device_t                dev;
1009         driver_object           *drv;
1010         struct ndis_softc       *sc;
1011         struct ifnet            *ifp;
1012         unicode_string          us;
1013         ansi_string             as = { 0, 0, NULL };
1014
1015         block = (ndis_miniport_block *)adapter;
1016         dev = block->nmb_physdeviceobj->do_devext;
1017         drv = block->nmb_deviceobj->do_drvobj;
1018         sc = device_get_softc(dev);
1019         ifp = sc->ifp;
1020
1021         if (ifp->if_flags & IFF_DEBUG) {
1022                 error = pe_get_message((vm_offset_t)drv->dro_driverstart,
1023                     code, &str, &i, &flags);
1024                 if (error == 0) {
1025                         if (flags & MESSAGE_RESOURCE_UNICODE) {
1026                                 RtlInitUnicodeString(&us, (uint16_t *)str);
1027                                 if (RtlUnicodeStringToAnsiString(&as,
1028                                     &us, TRUE) == STATUS_SUCCESS)
1029                                         str = as.as_buf;
1030                                 else
1031                                         str = NULL;
1032                         }
1033                 }
1034         }
1035
1036         device_printf (dev, "NDIS ERROR: %x (%s)\n", code,
1037             str == NULL ? "unknown error" : str);
1038
1039         if (ifp->if_flags & IFF_DEBUG) {
1040                 device_printf (dev, "NDIS NUMERRORS: %x\n", numerrors);
1041                 va_start(ap, numerrors);
1042                 for (i = 0; i < numerrors; i++)
1043                         device_printf (dev, "argptr: %p\n",
1044                             va_arg(ap, void *));
1045                 va_end(ap);
1046         }
1047
1048         if (as.as_len)
1049                 RtlFreeAnsiString(&as);
1050
1051         return;
1052 }
1053
1054 static void
1055 ndis_map_cb(arg, segs, nseg, error)
1056         void                    *arg;
1057         bus_dma_segment_t       *segs;
1058         int                     nseg;
1059         int                     error;
1060 {
1061         struct ndis_map_arg     *ctx;
1062         int                     i;
1063
1064         if (error)
1065                 return;
1066
1067         ctx = arg;
1068
1069         for (i = 0; i < nseg; i++) {
1070                 ctx->nma_fraglist[i].npu_physaddr.np_quad = segs[i].ds_addr;
1071                 ctx->nma_fraglist[i].npu_len = segs[i].ds_len;
1072         }
1073
1074         ctx->nma_cnt = nseg;
1075
1076         return;
1077 }
1078
1079 static void
1080 NdisMStartBufferPhysicalMapping(adapter, buf, mapreg, writedev, addrarray, arraysize)
1081         ndis_handle             adapter;
1082         ndis_buffer             *buf;
1083         uint32_t                mapreg;
1084         uint8_t                 writedev;
1085         ndis_paddr_unit         *addrarray;
1086         uint32_t                *arraysize;
1087 {
1088         ndis_miniport_block     *block;
1089         struct ndis_softc       *sc;
1090         struct ndis_map_arg     nma;
1091         bus_dmamap_t            map;
1092         int                     error;
1093
1094         if (adapter == NULL)
1095                 return;
1096
1097         block = (ndis_miniport_block *)adapter;
1098         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1099
1100         if (mapreg > sc->ndis_mmapcnt)
1101                 return;
1102
1103         map = sc->ndis_mmaps[mapreg];
1104         nma.nma_fraglist = addrarray;
1105
1106         error = bus_dmamap_load(sc->ndis_mtag, map,
1107             MmGetMdlVirtualAddress(buf), MmGetMdlByteCount(buf), ndis_map_cb,
1108             (void *)&nma, BUS_DMA_NOWAIT);
1109
1110         if (error)
1111                 return;
1112
1113         bus_dmamap_sync(sc->ndis_mtag, map,
1114             writedev ? BUS_DMASYNC_PREWRITE : BUS_DMASYNC_PREREAD);
1115
1116         *arraysize = nma.nma_cnt;
1117
1118         return;
1119 }
1120
1121 static void
1122 NdisMCompleteBufferPhysicalMapping(adapter, buf, mapreg)
1123         ndis_handle             adapter;
1124         ndis_buffer             *buf;
1125         uint32_t                mapreg;
1126 {
1127         ndis_miniport_block     *block;
1128         struct ndis_softc       *sc;
1129         bus_dmamap_t            map;
1130
1131         if (adapter == NULL)
1132                 return;
1133
1134         block = (ndis_miniport_block *)adapter;
1135         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1136
1137         if (mapreg > sc->ndis_mmapcnt)
1138                 return;
1139
1140         map = sc->ndis_mmaps[mapreg];
1141
1142         bus_dmamap_sync(sc->ndis_mtag, map,
1143             BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
1144
1145         bus_dmamap_unload(sc->ndis_mtag, map);
1146
1147         return;
1148 }
1149
1150 /*
1151  * This is an older (?) timer init routine which doesn't
1152  * accept a miniport context handle. Serialized miniports should
1153  * never call this function.
1154  */
1155
1156 static void
1157 NdisInitializeTimer(timer, func, ctx)
1158         ndis_timer              *timer;
1159         ndis_timer_function     func;
1160         void                    *ctx;
1161 {
1162         KeInitializeTimer(&timer->nt_ktimer);
1163         KeInitializeDpc(&timer->nt_kdpc, func, ctx);
1164         KeSetImportanceDpc(&timer->nt_kdpc, KDPC_IMPORTANCE_LOW);
1165
1166         return;
1167 }
1168
1169 static void
1170 ndis_timercall(dpc, timer, sysarg1, sysarg2)
1171         kdpc                    *dpc;
1172         ndis_miniport_timer     *timer;
1173         void                    *sysarg1;
1174         void                    *sysarg2;
1175 {
1176         /*
1177          * Since we're called as a DPC, we should be running
1178          * at DISPATCH_LEVEL here. This means to acquire the
1179          * spinlock, we can use KeAcquireSpinLockAtDpcLevel()
1180          * rather than KeAcquireSpinLock().
1181          */
1182         if (NDIS_SERIALIZED(timer->nmt_block))
1183                 KeAcquireSpinLockAtDpcLevel(&timer->nmt_block->nmb_lock);
1184
1185         MSCALL4(timer->nmt_timerfunc, dpc, timer->nmt_timerctx,
1186             sysarg1, sysarg2);
1187
1188         if (NDIS_SERIALIZED(timer->nmt_block))
1189                 KeReleaseSpinLockFromDpcLevel(&timer->nmt_block->nmb_lock);
1190
1191         return;
1192 }
1193
1194 /*
1195  * For a long time I wondered why there were two NDIS timer initialization
1196  * routines, and why this one needed an NDIS_MINIPORT_TIMER and the
1197  * MiniportAdapterHandle. The NDIS_MINIPORT_TIMER has its own callout
1198  * function and context pointers separate from those in the DPC, which
1199  * allows for another level of indirection: when the timer fires, we
1200  * can have our own timer function invoked, and from there we can call
1201  * the driver's function. But why go to all that trouble? Then it hit
1202  * me: for serialized miniports, the timer callouts are not re-entrant.
1203  * By trapping the callouts and having access to the MiniportAdapterHandle,
1204  * we can protect the driver callouts by acquiring the NDIS serialization
1205  * lock. This is essential for allowing serialized miniports to work
1206  * correctly on SMP systems. On UP hosts, setting IRQL to DISPATCH_LEVEL
1207  * is enough to prevent other threads from pre-empting you, but with
1208  * SMP, you must acquire a lock as well, otherwise the other CPU is
1209  * free to clobber you.
1210  */
1211 static void
1212 NdisMInitializeTimer(timer, handle, func, ctx)
1213         ndis_miniport_timer     *timer;
1214         ndis_handle             handle;
1215         ndis_timer_function     func;
1216         void                    *ctx;
1217 {
1218         /* Save the driver's funcptr and context */
1219
1220         timer->nmt_timerfunc = func;
1221         timer->nmt_timerctx = ctx;
1222         timer->nmt_block = handle;
1223
1224         /*
1225          * Set up the timer so it will call our intermediate DPC.
1226          * Be sure to use the wrapped entry point, since
1227          * ntoskrnl_run_dpc() expects to invoke a function with
1228          * Microsoft calling conventions.
1229          */
1230         KeInitializeTimer(&timer->nmt_ktimer);
1231         KeInitializeDpc(&timer->nmt_kdpc,
1232             ndis_findwrap((funcptr)ndis_timercall), timer);
1233         timer->nmt_ktimer.k_dpc = &timer->nmt_kdpc;
1234
1235         return;
1236 }
1237
1238 /*
1239  * In Windows, there's both an NdisMSetTimer() and an NdisSetTimer(),
1240  * but the former is just a macro wrapper around the latter.
1241  */
1242 static void
1243 NdisSetTimer(timer, msecs)
1244         ndis_timer              *timer;
1245         uint32_t                msecs;
1246 {
1247         /*
1248          * KeSetTimer() wants the period in
1249          * hundred nanosecond intervals.
1250          */
1251         KeSetTimer(&timer->nt_ktimer,
1252             ((int64_t)msecs * -10000), &timer->nt_kdpc);
1253
1254         return;
1255 }
1256
1257 static void
1258 NdisMSetPeriodicTimer(timer, msecs)
1259         ndis_miniport_timer     *timer;
1260         uint32_t                msecs;
1261 {
1262         KeSetTimerEx(&timer->nmt_ktimer,
1263             ((int64_t)msecs * -10000), msecs, &timer->nmt_kdpc);
1264
1265         return;
1266 }
1267
1268 /*
1269  * Technically, this is really NdisCancelTimer(), but we also
1270  * (ab)use it for NdisMCancelTimer(), since in our implementation
1271  * we don't need the extra info in the ndis_miniport_timer
1272  * structure just to cancel a timer.
1273  */
1274
1275 static void
1276 NdisMCancelTimer(timer, cancelled)
1277         ndis_timer              *timer;
1278         uint8_t                 *cancelled;
1279 {
1280         *cancelled = KeCancelTimer(&timer->nt_ktimer);
1281         return;
1282 }
1283
1284 static void
1285 NdisMQueryAdapterResources(status, adapter, list, buflen)
1286         ndis_status             *status;
1287         ndis_handle             adapter;
1288         ndis_resource_list      *list;
1289         uint32_t                *buflen;
1290 {
1291         ndis_miniport_block     *block;
1292         struct ndis_softc       *sc;
1293         int                     rsclen;
1294
1295         block = (ndis_miniport_block *)adapter;
1296         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1297
1298         rsclen = sizeof(ndis_resource_list) +
1299             (sizeof(cm_partial_resource_desc) * (sc->ndis_rescnt - 1));
1300         if (*buflen < rsclen) {
1301                 *buflen = rsclen;
1302                 *status = NDIS_STATUS_INVALID_LENGTH;
1303                 return;
1304         }
1305
1306         bcopy((char *)block->nmb_rlist, (char *)list, rsclen);
1307         *status = NDIS_STATUS_SUCCESS;
1308
1309         return;
1310 }
1311
1312 static ndis_status
1313 NdisMRegisterIoPortRange(offset, adapter, port, numports)
1314         void                    **offset;
1315         ndis_handle             adapter;
1316         uint32_t                port;
1317         uint32_t                numports;
1318 {
1319         struct ndis_miniport_block      *block;
1320         struct ndis_softc       *sc;
1321
1322         if (adapter == NULL)
1323                 return(NDIS_STATUS_FAILURE);
1324
1325         block = (ndis_miniport_block *)adapter;
1326         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1327
1328         if (sc->ndis_res_io == NULL)
1329                 return(NDIS_STATUS_FAILURE);
1330
1331         /* Don't let the device map more ports than we have. */
1332         if (rman_get_size(sc->ndis_res_io) < numports)
1333                 return(NDIS_STATUS_INVALID_LENGTH);
1334
1335         *offset = (void *)rman_get_start(sc->ndis_res_io);
1336
1337         return(NDIS_STATUS_SUCCESS);
1338 }
1339
1340 static void
1341 NdisMDeregisterIoPortRange(adapter, port, numports, offset)
1342         ndis_handle             adapter;
1343         uint32_t                port;
1344         uint32_t                numports;
1345         void                    *offset;
1346 {
1347         return;
1348 }
1349
1350 static void
1351 NdisReadNetworkAddress(status, addr, addrlen, adapter)
1352         ndis_status             *status;
1353         void                    **addr;
1354         uint32_t                *addrlen;
1355         ndis_handle             adapter;
1356 {
1357         struct ndis_softc       *sc;
1358         ndis_miniport_block     *block;
1359         uint8_t                 empty[] = { 0, 0, 0, 0, 0, 0 };
1360
1361         block = (ndis_miniport_block *)adapter;
1362         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1363
1364 #ifdef IFP2ENADDR
1365         if (bcmp(IFP2ENADDR(sc->ifp), empty, ETHER_ADDR_LEN) == 0)
1366 #elif __FreeBSD_version >= 700000
1367         if (sc->ifp->if_addr == NULL ||
1368             bcmp(IF_LLADDR(sc->ifp), empty, ETHER_ADDR_LEN) == 0)
1369 #else
1370         if (bcmp(sc->arpcom.ac_enaddr, empty, ETHER_ADDR_LEN) == 0)
1371 #endif
1372                 *status = NDIS_STATUS_FAILURE;
1373         else {
1374 #ifdef IFP2ENADDR
1375                 *addr = IFP2ENADDR(sc->ifp);
1376 #elif __FreeBSD_version >= 700000
1377                 *addr = IF_LLADDR(sc->ifp);
1378 #else
1379                 *addr = sc->arpcom.ac_enaddr;
1380 #endif
1381                 *addrlen = ETHER_ADDR_LEN;
1382                 *status = NDIS_STATUS_SUCCESS;
1383         }
1384
1385         return;
1386 }
1387
1388 static ndis_status
1389 NdisQueryMapRegisterCount(bustype, cnt)
1390         uint32_t                bustype;
1391         uint32_t                *cnt;
1392 {
1393         *cnt = 8192;
1394         return(NDIS_STATUS_SUCCESS);
1395 }
1396
1397 static ndis_status
1398 NdisMAllocateMapRegisters(adapter, dmachannel, dmasize, physmapneeded, maxmap)
1399         ndis_handle             adapter;
1400         uint32_t                dmachannel;
1401         uint8_t                 dmasize;
1402         uint32_t                physmapneeded;
1403         uint32_t                maxmap;
1404 {
1405         struct ndis_softc       *sc;
1406         ndis_miniport_block     *block;
1407         int                     error, i, nseg = NDIS_MAXSEG;
1408
1409         block = (ndis_miniport_block *)adapter;
1410         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1411
1412         sc->ndis_mmaps = malloc(sizeof(bus_dmamap_t) * physmapneeded,
1413             M_DEVBUF, M_NOWAIT|M_ZERO);
1414
1415         if (sc->ndis_mmaps == NULL)
1416                 return(NDIS_STATUS_RESOURCES);
1417
1418         error = bus_dma_tag_create(sc->ndis_parent_tag, ETHER_ALIGN, 0,
1419             BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL,
1420             NULL, maxmap * nseg, nseg, maxmap, BUS_DMA_ALLOCNOW,
1421             NULL, NULL, &sc->ndis_mtag);
1422
1423         if (error) {
1424                 free(sc->ndis_mmaps, M_DEVBUF);
1425                 return(NDIS_STATUS_RESOURCES);
1426         }
1427
1428         for (i = 0; i < physmapneeded; i++)
1429                 bus_dmamap_create(sc->ndis_mtag, 0, &sc->ndis_mmaps[i]);
1430
1431         sc->ndis_mmapcnt = physmapneeded;
1432
1433         return(NDIS_STATUS_SUCCESS);
1434 }
1435
1436 static void
1437 NdisMFreeMapRegisters(adapter)
1438         ndis_handle             adapter;
1439 {
1440         struct ndis_softc       *sc;
1441         ndis_miniport_block     *block;
1442         int                     i;
1443
1444         block = (ndis_miniport_block *)adapter;
1445         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1446
1447         for (i = 0; i < sc->ndis_mmapcnt; i++)
1448                 bus_dmamap_destroy(sc->ndis_mtag, sc->ndis_mmaps[i]);
1449
1450         free(sc->ndis_mmaps, M_DEVBUF);
1451
1452         bus_dma_tag_destroy(sc->ndis_mtag);
1453
1454         return;
1455 }
1456
1457 static void
1458 ndis_mapshared_cb(arg, segs, nseg, error)
1459         void                    *arg;
1460         bus_dma_segment_t       *segs;
1461         int                     nseg;
1462         int                     error;
1463 {
1464         ndis_physaddr           *p;
1465
1466         if (error || nseg > 1)
1467                 return;
1468
1469         p = arg;
1470
1471         p->np_quad = segs[0].ds_addr;
1472
1473         return;
1474 }
1475
1476 /*
1477  * This maps to bus_dmamem_alloc().
1478  */
1479
1480 static void
1481 NdisMAllocateSharedMemory(adapter, len, cached, vaddr, paddr)
1482         ndis_handle             adapter;
1483         uint32_t                len;
1484         uint8_t                 cached;
1485         void                    **vaddr;
1486         ndis_physaddr           *paddr;
1487 {
1488         ndis_miniport_block     *block;
1489         struct ndis_softc       *sc;
1490         struct ndis_shmem       *sh;
1491         int                     error;
1492
1493         if (adapter == NULL)
1494                 return;
1495
1496         block = (ndis_miniport_block *)adapter;
1497         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1498
1499         sh = malloc(sizeof(struct ndis_shmem), M_DEVBUF, M_NOWAIT|M_ZERO);
1500         if (sh == NULL)
1501                 return;
1502
1503         InitializeListHead(&sh->ndis_list);
1504
1505         /*
1506          * When performing shared memory allocations, create a tag
1507          * with a lowaddr limit that restricts physical memory mappings
1508          * so that they all fall within the first 1GB of memory.
1509          * At least one device/driver combination (Linksys Instant
1510          * Wireless PCI Card V2.7, Broadcom 802.11b) seems to have
1511          * problems with performing DMA operations with physical
1512          * addresses that lie above the 1GB mark. I don't know if this
1513          * is a hardware limitation or if the addresses are being
1514          * truncated within the driver, but this seems to be the only
1515          * way to make these cards work reliably in systems with more
1516          * than 1GB of physical memory.
1517          */
1518
1519         error = bus_dma_tag_create(sc->ndis_parent_tag, 64,
1520             0, NDIS_BUS_SPACE_SHARED_MAXADDR, BUS_SPACE_MAXADDR, NULL,
1521             NULL, len, 1, len, BUS_DMA_ALLOCNOW, NULL, NULL,
1522             &sh->ndis_stag);
1523
1524         if (error) {
1525                 free(sh, M_DEVBUF);
1526                 return;
1527         }
1528
1529         error = bus_dmamem_alloc(sh->ndis_stag, vaddr,
1530             BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sh->ndis_smap);
1531
1532         if (error) {
1533                 bus_dma_tag_destroy(sh->ndis_stag);
1534                 free(sh, M_DEVBUF);
1535                 return;
1536         }
1537
1538         error = bus_dmamap_load(sh->ndis_stag, sh->ndis_smap, *vaddr,
1539             len, ndis_mapshared_cb, (void *)paddr, BUS_DMA_NOWAIT);
1540
1541         if (error) {
1542                 bus_dmamem_free(sh->ndis_stag, *vaddr, sh->ndis_smap);
1543                 bus_dma_tag_destroy(sh->ndis_stag);
1544                 free(sh, M_DEVBUF);
1545                 return;
1546         }
1547
1548         /*
1549          * Save the physical address along with the source address.
1550          * The AirGo MIMO driver will call NdisMFreeSharedMemory()
1551          * with a bogus virtual address sometimes, but with a valid
1552          * physical address. To keep this from causing trouble, we
1553          * use the physical address to as a sanity check in case
1554          * searching based on the virtual address fails.
1555          */
1556
1557         NDIS_LOCK(sc);
1558         sh->ndis_paddr.np_quad = paddr->np_quad;
1559         sh->ndis_saddr = *vaddr;
1560         InsertHeadList((&sc->ndis_shlist), (&sh->ndis_list));
1561         NDIS_UNLOCK(sc);
1562
1563         return;
1564 }
1565
1566 struct ndis_allocwork {
1567         uint32_t                na_len;
1568         uint8_t                 na_cached;
1569         void                    *na_ctx;
1570         io_workitem             *na_iw;
1571 };
1572
1573 static void
1574 ndis_asyncmem_complete(dobj, arg)
1575         device_object           *dobj;
1576         void                    *arg;
1577 {
1578         ndis_miniport_block     *block;
1579         struct ndis_softc       *sc;
1580         struct ndis_allocwork   *w;
1581         void                    *vaddr;
1582         ndis_physaddr           paddr;
1583         ndis_allocdone_handler  donefunc;
1584
1585         w = arg;
1586         block = (ndis_miniport_block *)dobj->do_devext;
1587         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1588
1589         vaddr = NULL;
1590         paddr.np_quad = 0;
1591
1592         donefunc = sc->ndis_chars->nmc_allocate_complete_func;
1593         NdisMAllocateSharedMemory(block, w->na_len,
1594             w->na_cached, &vaddr, &paddr);
1595         MSCALL5(donefunc, block, vaddr, &paddr, w->na_len, w->na_ctx);
1596
1597         IoFreeWorkItem(w->na_iw);
1598         free(w, M_DEVBUF);
1599
1600         return;
1601 }
1602
1603 static ndis_status
1604 NdisMAllocateSharedMemoryAsync(adapter, len, cached, ctx)
1605         ndis_handle             adapter;
1606         uint32_t                len;
1607         uint8_t                 cached;
1608         void                    *ctx;
1609 {
1610         ndis_miniport_block     *block;
1611         struct ndis_allocwork   *w;
1612         io_workitem             *iw;
1613         io_workitem_func        ifw;
1614
1615         if (adapter == NULL)
1616                 return(NDIS_STATUS_FAILURE);
1617
1618         block = adapter;
1619
1620         iw = IoAllocateWorkItem(block->nmb_deviceobj);
1621         if (iw == NULL)
1622                 return(NDIS_STATUS_FAILURE);
1623
1624         w = malloc(sizeof(struct ndis_allocwork), M_TEMP, M_NOWAIT);
1625
1626         if (w == NULL)
1627                 return(NDIS_STATUS_FAILURE);
1628
1629         w->na_cached = cached;
1630         w->na_len = len;
1631         w->na_ctx = ctx;
1632         w->na_iw = iw;
1633
1634         ifw = (io_workitem_func)ndis_findwrap((funcptr)ndis_asyncmem_complete);
1635         IoQueueWorkItem(iw, ifw, WORKQUEUE_DELAYED, w);
1636
1637         return(NDIS_STATUS_PENDING);
1638 }
1639
1640 static void
1641 NdisMFreeSharedMemory(adapter, len, cached, vaddr, paddr)
1642         ndis_handle             adapter;
1643         uint32_t                len;
1644         uint8_t                 cached;
1645         void                    *vaddr;
1646         ndis_physaddr           paddr;
1647 {
1648         ndis_miniport_block     *block;
1649         struct ndis_softc       *sc;
1650         struct ndis_shmem       *sh = NULL;
1651         list_entry              *l;
1652
1653         if (vaddr == NULL || adapter == NULL)
1654                 return;
1655
1656         block = (ndis_miniport_block *)adapter;
1657         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1658
1659         /* Sanity check: is list empty? */
1660
1661         if (IsListEmpty(&sc->ndis_shlist))
1662                 return;
1663
1664         NDIS_LOCK(sc);
1665         l = sc->ndis_shlist.nle_flink;
1666         while (l != &sc->ndis_shlist) {
1667                 sh = CONTAINING_RECORD(l, struct ndis_shmem, ndis_list);
1668                 if (sh->ndis_saddr == vaddr)
1669                         break;
1670                 /*
1671                  * Check the physaddr too, just in case the driver lied
1672                  * about the virtual address.
1673                  */
1674                 if (sh->ndis_paddr.np_quad == paddr.np_quad)
1675                         break;
1676                 l = l->nle_flink;
1677         }
1678
1679         if (sh == NULL) {
1680                 NDIS_UNLOCK(sc);
1681                 printf("NDIS: buggy driver tried to free "
1682                     "invalid shared memory: vaddr: %p paddr: 0x%jx\n",
1683                     vaddr, (uintmax_t)paddr.np_quad);
1684                 return;
1685         }
1686
1687         RemoveEntryList(&sh->ndis_list);
1688
1689         NDIS_UNLOCK(sc);
1690
1691         bus_dmamap_unload(sh->ndis_stag, sh->ndis_smap);
1692         bus_dmamem_free(sh->ndis_stag, sh->ndis_saddr, sh->ndis_smap);
1693         bus_dma_tag_destroy(sh->ndis_stag);
1694
1695         free(sh, M_DEVBUF);
1696
1697         return;
1698 }
1699
1700 static ndis_status
1701 NdisMMapIoSpace(vaddr, adapter, paddr, len)
1702         void                    **vaddr;
1703         ndis_handle             adapter;
1704         ndis_physaddr           paddr;
1705         uint32_t                len;
1706 {
1707         if (adapter == NULL)
1708                 return(NDIS_STATUS_FAILURE);
1709
1710         *vaddr = MmMapIoSpace(paddr.np_quad, len, 0);
1711
1712         if (*vaddr == NULL)
1713                 return(NDIS_STATUS_FAILURE);
1714
1715         return(NDIS_STATUS_SUCCESS);
1716 }
1717
1718 static void
1719 NdisMUnmapIoSpace(adapter, vaddr, len)
1720         ndis_handle             adapter;
1721         void                    *vaddr;
1722         uint32_t                len;
1723 {
1724         MmUnmapIoSpace(vaddr, len);
1725         return;
1726 }
1727
1728 static uint32_t
1729 NdisGetCacheFillSize(void)
1730 {
1731         return(128);
1732 }
1733
1734 static uint32_t
1735 NdisMGetDmaAlignment(handle)
1736         ndis_handle             handle;
1737 {
1738         return(16);
1739 }
1740
1741 /*
1742  * NDIS has two methods for dealing with NICs that support DMA.
1743  * One is to just pass packets to the driver and let it call
1744  * NdisMStartBufferPhysicalMapping() to map each buffer in the packet
1745  * all by itself, and the other is to let the NDIS library handle the
1746  * buffer mapping internally, and hand the driver an already populated
1747  * scatter/gather fragment list. If the driver calls
1748  * NdisMInitializeScatterGatherDma(), it wants to use the latter
1749  * method.
1750  */
1751
1752 static ndis_status
1753 NdisMInitializeScatterGatherDma(adapter, is64, maxphysmap)
1754         ndis_handle             adapter;
1755         uint8_t                 is64;
1756         uint32_t                maxphysmap;
1757 {
1758         struct ndis_softc       *sc;
1759         ndis_miniport_block     *block;
1760         int                     error;
1761
1762         if (adapter == NULL)
1763                 return(NDIS_STATUS_FAILURE);
1764         block = (ndis_miniport_block *)adapter;
1765         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1766
1767         /* Don't do this twice. */
1768         if (sc->ndis_sc == 1)
1769                 return(NDIS_STATUS_SUCCESS);
1770
1771         error = bus_dma_tag_create(sc->ndis_parent_tag, ETHER_ALIGN, 0,
1772             BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
1773             MCLBYTES * NDIS_MAXSEG, NDIS_MAXSEG, MCLBYTES, BUS_DMA_ALLOCNOW,
1774             NULL, NULL, &sc->ndis_ttag);
1775
1776         sc->ndis_sc = 1;
1777
1778         return(NDIS_STATUS_SUCCESS);
1779 }
1780
1781 void
1782 NdisAllocatePacketPool(status, pool, descnum, protrsvdlen)
1783         ndis_status             *status;
1784         ndis_handle             *pool;
1785         uint32_t                descnum;
1786         uint32_t                protrsvdlen;
1787 {
1788         ndis_packet_pool        *p;
1789         ndis_packet             *packets;
1790         int                     i;
1791
1792         p = ExAllocatePoolWithTag(NonPagedPool, sizeof(ndis_packet_pool), 0);
1793         if (p == NULL) {
1794                 *status = NDIS_STATUS_RESOURCES;
1795                 return;
1796         }
1797
1798         p->np_cnt = descnum + NDIS_POOL_EXTRA;
1799         p->np_protrsvd = protrsvdlen;
1800         p->np_len = sizeof(ndis_packet) + protrsvdlen;
1801
1802         packets = ExAllocatePoolWithTag(NonPagedPool, p->np_cnt *
1803             p->np_len, 0);
1804
1805
1806         if (packets == NULL) {
1807                 ExFreePool(p);
1808                 *status = NDIS_STATUS_RESOURCES;
1809                 return;
1810         }
1811
1812         p->np_pktmem = packets;
1813
1814         for (i = 0; i < p->np_cnt; i++)
1815                 InterlockedPushEntrySList(&p->np_head,
1816                     (struct slist_entry *)&packets[i]);
1817
1818 #ifdef NDIS_DEBUG_PACKETS
1819         p->np_dead = 0;
1820         KeInitializeSpinLock(&p->np_lock);
1821         KeInitializeEvent(&p->np_event, EVENT_TYPE_NOTIFY, TRUE);
1822 #endif
1823
1824         *pool = p;
1825         *status = NDIS_STATUS_SUCCESS;
1826         return;
1827 }
1828
1829 void
1830 NdisAllocatePacketPoolEx(status, pool, descnum, oflowdescnum, protrsvdlen)
1831         ndis_status             *status;
1832         ndis_handle             *pool;
1833         uint32_t                descnum;
1834         uint32_t                oflowdescnum;
1835         uint32_t                protrsvdlen;
1836 {
1837         return(NdisAllocatePacketPool(status, pool,
1838             descnum + oflowdescnum, protrsvdlen));
1839 }
1840
1841 uint32_t
1842 NdisPacketPoolUsage(pool)
1843         ndis_handle             pool;
1844 {
1845         ndis_packet_pool        *p;
1846
1847         p = (ndis_packet_pool *)pool;
1848         return(p->np_cnt - ExQueryDepthSList(&p->np_head));
1849 }
1850
1851 void
1852 NdisFreePacketPool(pool)
1853         ndis_handle             pool;
1854 {
1855         ndis_packet_pool        *p;
1856         int                     usage;
1857 #ifdef NDIS_DEBUG_PACKETS
1858         uint8_t                 irql;
1859 #endif
1860
1861         p = (ndis_packet_pool *)pool;
1862
1863 #ifdef NDIS_DEBUG_PACKETS
1864         KeAcquireSpinLock(&p->np_lock, &irql);
1865 #endif
1866
1867         usage = NdisPacketPoolUsage(pool);
1868
1869 #ifdef NDIS_DEBUG_PACKETS
1870         if (usage) {
1871                 p->np_dead = 1;
1872                 KeResetEvent(&p->np_event);
1873                 KeReleaseSpinLock(&p->np_lock, irql);
1874                 KeWaitForSingleObject(&p->np_event, 0, 0, FALSE, NULL);
1875         } else
1876                 KeReleaseSpinLock(&p->np_lock, irql);
1877 #endif
1878
1879         ExFreePool(p->np_pktmem);
1880         ExFreePool(p);
1881
1882         return;
1883 }
1884
1885 void
1886 NdisAllocatePacket(status, packet, pool)
1887         ndis_status             *status;
1888         ndis_packet             **packet;
1889         ndis_handle             pool;
1890 {
1891         ndis_packet_pool        *p;
1892         ndis_packet             *pkt;
1893 #ifdef NDIS_DEBUG_PACKETS
1894         uint8_t                 irql;
1895 #endif
1896
1897         p = (ndis_packet_pool *)pool;
1898
1899 #ifdef NDIS_DEBUG_PACKETS
1900         KeAcquireSpinLock(&p->np_lock, &irql);
1901         if (p->np_dead) {
1902                 KeReleaseSpinLock(&p->np_lock, irql);
1903                 printf("NDIS: tried to allocate packet from dead pool %p\n",
1904                     pool);
1905                 *status = NDIS_STATUS_RESOURCES;
1906                 return;
1907         }
1908 #endif
1909
1910         pkt = (ndis_packet *)InterlockedPopEntrySList(&p->np_head);
1911
1912 #ifdef NDIS_DEBUG_PACKETS
1913         KeReleaseSpinLock(&p->np_lock, irql);
1914 #endif
1915
1916         if (pkt == NULL) {
1917                 *status = NDIS_STATUS_RESOURCES;
1918                 return;
1919         }
1920
1921
1922         bzero((char *)pkt, sizeof(ndis_packet));
1923
1924         /* Save pointer to the pool. */
1925         pkt->np_private.npp_pool = pool;
1926
1927         /* Set the oob offset pointer. Lots of things expect this. */
1928         pkt->np_private.npp_packetooboffset = offsetof(ndis_packet, np_oob);
1929
1930         /*
1931          * We must initialize the packet flags correctly in order
1932          * for the NDIS_SET_PACKET_MEDIA_SPECIFIC_INFO() and
1933          * NDIS_GET_PACKET_MEDIA_SPECIFIC_INFO() macros to work
1934          * correctly.
1935          */
1936         pkt->np_private.npp_ndispktflags = NDIS_PACKET_ALLOCATED_BY_NDIS;
1937         pkt->np_private.npp_validcounts = FALSE;
1938
1939         *packet = pkt;
1940
1941         *status = NDIS_STATUS_SUCCESS;
1942
1943         return;
1944 }
1945
1946 void
1947 NdisFreePacket(packet)
1948         ndis_packet             *packet;
1949 {
1950         ndis_packet_pool        *p;
1951 #ifdef NDIS_DEBUG_PACKETS
1952         uint8_t                 irql;
1953 #endif
1954
1955         p = (ndis_packet_pool *)packet->np_private.npp_pool;
1956
1957 #ifdef NDIS_DEBUG_PACKETS
1958         KeAcquireSpinLock(&p->np_lock, &irql);
1959 #endif
1960
1961         InterlockedPushEntrySList(&p->np_head, (slist_entry *)packet);
1962
1963 #ifdef NDIS_DEBUG_PACKETS
1964         if (p->np_dead) {
1965                 if (ExQueryDepthSList(&p->np_head) == p->np_cnt)
1966                         KeSetEvent(&p->np_event, IO_NO_INCREMENT, FALSE);
1967         }
1968         KeReleaseSpinLock(&p->np_lock, irql);
1969 #endif
1970
1971         return;
1972 }
1973
1974 static void
1975 NdisUnchainBufferAtFront(packet, buf)
1976         ndis_packet             *packet;
1977         ndis_buffer             **buf;
1978 {
1979         ndis_packet_private     *priv;
1980
1981         if (packet == NULL || buf == NULL)
1982                 return;
1983
1984         priv = &packet->np_private;
1985
1986         priv->npp_validcounts = FALSE;
1987
1988         if (priv->npp_head == priv->npp_tail) {
1989                 *buf = priv->npp_head;
1990                 priv->npp_head = priv->npp_tail = NULL;
1991         } else {
1992                 *buf = priv->npp_head;
1993                 priv->npp_head = (*buf)->mdl_next;
1994         }
1995
1996         return;
1997 }
1998
1999 static void
2000 NdisUnchainBufferAtBack(packet, buf)
2001         ndis_packet             *packet;
2002         ndis_buffer             **buf;
2003 {
2004         ndis_packet_private     *priv;
2005         ndis_buffer             *tmp;
2006
2007         if (packet == NULL || buf == NULL)
2008                 return;
2009
2010         priv = &packet->np_private;
2011
2012         priv->npp_validcounts = FALSE;
2013
2014         if (priv->npp_head == priv->npp_tail) {
2015                 *buf = priv->npp_head;
2016                 priv->npp_head = priv->npp_tail = NULL;
2017         } else {
2018                 *buf = priv->npp_tail;
2019                 tmp = priv->npp_head;
2020                 while (tmp->mdl_next != priv->npp_tail)
2021                         tmp = tmp->mdl_next;
2022                 priv->npp_tail = tmp;
2023                 tmp->mdl_next = NULL;
2024         }
2025
2026         return;
2027 }
2028
2029 /*
2030  * The NDIS "buffer" is really an MDL (memory descriptor list)
2031  * which is used to describe a buffer in a way that allows it
2032  * to mapped into different contexts. We have to be careful how
2033  * we handle them: in some versions of Windows, the NdisFreeBuffer()
2034  * routine is an actual function in the NDIS API, but in others
2035  * it's just a macro wrapper around IoFreeMdl(). There's really
2036  * no way to use the 'descnum' parameter to count how many
2037  * "buffers" are allocated since in order to use IoFreeMdl() to
2038  * dispose of a buffer, we have to use IoAllocateMdl() to allocate
2039  * them, and IoAllocateMdl() just grabs them out of the heap.
2040  */
2041
2042 static void
2043 NdisAllocateBufferPool(status, pool, descnum)
2044         ndis_status             *status;
2045         ndis_handle             *pool;
2046         uint32_t                descnum;
2047 {
2048
2049         /*
2050          * The only thing we can really do here is verify that descnum
2051          * is a reasonable value, but I really don't know what to check
2052          * it against.
2053          */
2054
2055         *pool = NonPagedPool;
2056         *status = NDIS_STATUS_SUCCESS;
2057         return;
2058 }
2059
2060 static void
2061 NdisFreeBufferPool(pool)
2062         ndis_handle             pool;
2063 {
2064         return;
2065 }
2066
2067 static void
2068 NdisAllocateBuffer(status, buffer, pool, vaddr, len)
2069         ndis_status             *status;
2070         ndis_buffer             **buffer;
2071         ndis_handle             pool;
2072         void                    *vaddr;
2073         uint32_t                len;
2074 {
2075         ndis_buffer             *buf;
2076
2077         buf = IoAllocateMdl(vaddr, len, FALSE, FALSE, NULL);
2078         if (buf == NULL) {
2079                 *status = NDIS_STATUS_RESOURCES;
2080                 return;
2081         }
2082
2083         MmBuildMdlForNonPagedPool(buf);
2084
2085         *buffer = buf;
2086         *status = NDIS_STATUS_SUCCESS;
2087
2088         return;
2089 }
2090
2091 static void
2092 NdisFreeBuffer(buf)
2093         ndis_buffer             *buf;
2094 {
2095         IoFreeMdl(buf);
2096         return;
2097 }
2098
2099 /* Aw c'mon. */
2100
2101 static uint32_t
2102 NdisBufferLength(buf)
2103         ndis_buffer             *buf;
2104 {
2105         return(MmGetMdlByteCount(buf));
2106 }
2107
2108 /*
2109  * Get the virtual address and length of a buffer.
2110  * Note: the vaddr argument is optional.
2111  */
2112
2113 static void
2114 NdisQueryBuffer(buf, vaddr, len)
2115         ndis_buffer             *buf;
2116         void                    **vaddr;
2117         uint32_t                *len;
2118 {
2119         if (vaddr != NULL)
2120                 *vaddr = MmGetMdlVirtualAddress(buf);
2121         *len = MmGetMdlByteCount(buf);
2122
2123         return;
2124 }
2125
2126 /* Same as above -- we don't care about the priority. */
2127
2128 static void
2129 NdisQueryBufferSafe(buf, vaddr, len, prio)
2130         ndis_buffer             *buf;
2131         void                    **vaddr;
2132         uint32_t                *len;
2133         uint32_t                prio;
2134 {
2135         if (vaddr != NULL)
2136                 *vaddr = MmGetMdlVirtualAddress(buf);
2137         *len = MmGetMdlByteCount(buf);
2138
2139         return;
2140 }
2141
2142 /* Damnit Microsoft!! How many ways can you do the same thing?! */
2143
2144 static void *
2145 NdisBufferVirtualAddress(buf)
2146         ndis_buffer             *buf;
2147 {
2148         return(MmGetMdlVirtualAddress(buf));
2149 }
2150
2151 static void *
2152 NdisBufferVirtualAddressSafe(buf, prio)
2153         ndis_buffer             *buf;
2154         uint32_t                prio;
2155 {
2156         return(MmGetMdlVirtualAddress(buf));
2157 }
2158
2159 static void
2160 NdisAdjustBufferLength(buf, len)
2161         ndis_buffer             *buf;
2162         int                     len;
2163 {
2164         MmGetMdlByteCount(buf) = len;
2165
2166         return;
2167 }
2168
2169 static uint32_t
2170 NdisInterlockedIncrement(addend)
2171         uint32_t                *addend;
2172 {
2173         atomic_add_long((u_long *)addend, 1);
2174         return(*addend);
2175 }
2176
2177 static uint32_t
2178 NdisInterlockedDecrement(addend)
2179         uint32_t                *addend;
2180 {
2181         atomic_subtract_long((u_long *)addend, 1);
2182         return(*addend);
2183 }
2184
2185 static void
2186 NdisInitializeEvent(event)
2187         ndis_event              *event;
2188 {
2189         /*
2190          * NDIS events are always notification
2191          * events, and should be initialized to the
2192          * not signaled state.
2193          */
2194         KeInitializeEvent(&event->ne_event, EVENT_TYPE_NOTIFY, FALSE);
2195         return;
2196 }
2197
2198 static void
2199 NdisSetEvent(event)
2200         ndis_event              *event;
2201 {
2202         KeSetEvent(&event->ne_event, IO_NO_INCREMENT, FALSE);
2203         return;
2204 }
2205
2206 static void
2207 NdisResetEvent(event)
2208         ndis_event              *event;
2209 {
2210         KeResetEvent(&event->ne_event);
2211         return;
2212 }
2213
2214 static uint8_t
2215 NdisWaitEvent(event, msecs)
2216         ndis_event              *event;
2217         uint32_t                msecs;
2218 {
2219         int64_t                 duetime;
2220         uint32_t                rval;
2221
2222         duetime = ((int64_t)msecs * -10000);
2223         rval = KeWaitForSingleObject(event,
2224             0, 0, TRUE, msecs ? & duetime : NULL);
2225
2226         if (rval == STATUS_TIMEOUT)
2227                 return(FALSE);
2228
2229         return(TRUE);
2230 }
2231
2232 static ndis_status
2233 NdisUnicodeStringToAnsiString(dstr, sstr)
2234         ansi_string             *dstr;
2235         unicode_string          *sstr;
2236 {
2237         uint32_t                rval;
2238
2239         rval = RtlUnicodeStringToAnsiString(dstr, sstr, FALSE);
2240
2241         if (rval == STATUS_INSUFFICIENT_RESOURCES)
2242                 return(NDIS_STATUS_RESOURCES);
2243         if (rval)
2244                 return(NDIS_STATUS_FAILURE);
2245
2246         return (NDIS_STATUS_SUCCESS);
2247 }
2248
2249 static ndis_status
2250 NdisAnsiStringToUnicodeString(dstr, sstr)
2251         unicode_string          *dstr;
2252         ansi_string             *sstr;
2253 {
2254         uint32_t                rval;
2255
2256         rval = RtlAnsiStringToUnicodeString(dstr, sstr, FALSE);
2257
2258         if (rval == STATUS_INSUFFICIENT_RESOURCES)
2259                 return(NDIS_STATUS_RESOURCES);
2260         if (rval)
2261                 return(NDIS_STATUS_FAILURE);
2262
2263         return (NDIS_STATUS_SUCCESS);
2264 }
2265
2266 static ndis_status
2267 NdisMPciAssignResources(adapter, slot, list)
2268         ndis_handle             adapter;
2269         uint32_t                slot;
2270         ndis_resource_list      **list;
2271 {
2272         ndis_miniport_block     *block;
2273
2274         if (adapter == NULL || list == NULL)
2275                 return (NDIS_STATUS_FAILURE);
2276
2277         block = (ndis_miniport_block *)adapter;
2278         *list = block->nmb_rlist;
2279
2280         return (NDIS_STATUS_SUCCESS);
2281 }
2282
2283 static uint8_t
2284 ndis_intr(iobj, arg)
2285         kinterrupt              *iobj;
2286         void                    *arg;
2287 {
2288         struct ndis_softc       *sc;
2289         uint8_t                 is_our_intr = FALSE;
2290         int                     call_isr = 0;
2291         ndis_miniport_interrupt *intr;
2292
2293         sc = arg;
2294         intr = sc->ndis_block->nmb_interrupt;
2295
2296         if (intr == NULL || sc->ndis_block->nmb_miniportadapterctx == NULL)
2297                 return(FALSE);
2298
2299         if (sc->ndis_block->nmb_interrupt->ni_isrreq == TRUE)
2300                 MSCALL3(intr->ni_isrfunc, &is_our_intr, &call_isr,
2301                     sc->ndis_block->nmb_miniportadapterctx);
2302         else {
2303                 MSCALL1(sc->ndis_chars->nmc_disable_interrupts_func,
2304                     sc->ndis_block->nmb_miniportadapterctx);
2305                 call_isr = 1;
2306         }
2307
2308         if (call_isr)
2309                 IoRequestDpc(sc->ndis_block->nmb_deviceobj, NULL, sc);
2310
2311         return(is_our_intr);
2312 }
2313
2314 static void
2315 ndis_intrhand(dpc, intr, sysarg1, sysarg2)
2316         kdpc                    *dpc;
2317         ndis_miniport_interrupt *intr;
2318         void                    *sysarg1;
2319         void                    *sysarg2;
2320 {
2321         struct ndis_softc       *sc;
2322         ndis_miniport_block     *block;
2323         ndis_handle             adapter;
2324
2325         block = intr->ni_block;
2326         adapter = block->nmb_miniportadapterctx;
2327         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2328
2329         if (NDIS_SERIALIZED(sc->ndis_block))
2330                 KeAcquireSpinLockAtDpcLevel(&block->nmb_lock);
2331
2332         MSCALL1(intr->ni_dpcfunc, adapter);
2333
2334         /* If there's a MiniportEnableInterrupt() routine, call it. */
2335
2336         if (sc->ndis_chars->nmc_enable_interrupts_func != NULL)
2337                 MSCALL1(sc->ndis_chars->nmc_enable_interrupts_func, adapter);
2338
2339         if (NDIS_SERIALIZED(sc->ndis_block))
2340                 KeReleaseSpinLockFromDpcLevel(&block->nmb_lock);
2341
2342         /*
2343          * Set the completion event if we've drained all
2344          * pending interrupts.
2345          */
2346
2347         KeAcquireSpinLockAtDpcLevel(&intr->ni_dpccountlock);
2348         intr->ni_dpccnt--;
2349         if (intr->ni_dpccnt == 0)
2350                 KeSetEvent(&intr->ni_dpcevt, IO_NO_INCREMENT, FALSE);
2351         KeReleaseSpinLockFromDpcLevel(&intr->ni_dpccountlock);
2352
2353         return;
2354 }
2355
2356 static ndis_status
2357 NdisMRegisterInterrupt(intr, adapter, ivec, ilevel, reqisr, shared, imode)
2358         ndis_miniport_interrupt *intr;
2359         ndis_handle             adapter;
2360         uint32_t                ivec;
2361         uint32_t                ilevel;
2362         uint8_t                 reqisr;
2363         uint8_t                 shared;
2364         ndis_interrupt_mode     imode;
2365 {
2366         ndis_miniport_block     *block;
2367         ndis_miniport_characteristics *ch;
2368         struct ndis_softc       *sc;
2369         int                     error;
2370
2371         block = adapter;
2372         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2373         ch = IoGetDriverObjectExtension(block->nmb_deviceobj->do_drvobj,
2374             (void *)1);
2375
2376         intr->ni_rsvd = ExAllocatePoolWithTag(NonPagedPool,
2377             sizeof(struct mtx), 0);
2378         if (intr->ni_rsvd == NULL)
2379                 return(NDIS_STATUS_RESOURCES);
2380
2381         intr->ni_block = adapter;
2382         intr->ni_isrreq = reqisr;
2383         intr->ni_shared = shared;
2384         intr->ni_dpccnt = 0;
2385         intr->ni_isrfunc = ch->nmc_isr_func;
2386         intr->ni_dpcfunc = ch->nmc_interrupt_func;
2387
2388         KeInitializeEvent(&intr->ni_dpcevt, EVENT_TYPE_NOTIFY, TRUE);
2389         KeInitializeDpc(&intr->ni_dpc,
2390             ndis_findwrap((funcptr)ndis_intrhand), intr);
2391         KeSetImportanceDpc(&intr->ni_dpc, KDPC_IMPORTANCE_LOW);
2392
2393         error = IoConnectInterrupt(&intr->ni_introbj,
2394             ndis_findwrap((funcptr)ndis_intr), sc, NULL,
2395             ivec, ilevel, 0, imode, shared, 0, FALSE);
2396
2397         if (error != STATUS_SUCCESS)
2398                 return(NDIS_STATUS_FAILURE);
2399
2400         block->nmb_interrupt = intr;
2401
2402         return(NDIS_STATUS_SUCCESS);
2403 }
2404
2405 static void
2406 NdisMDeregisterInterrupt(intr)
2407         ndis_miniport_interrupt *intr;
2408 {
2409         ndis_miniport_block     *block;
2410         struct ndis_softc       *sc;
2411         uint8_t                 irql;
2412
2413         block = intr->ni_block;
2414         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2415
2416         /* Should really be KeSynchronizeExecution() */
2417
2418         KeAcquireSpinLock(intr->ni_introbj->ki_lock, &irql);
2419         block->nmb_interrupt = NULL;
2420         KeReleaseSpinLock(intr->ni_introbj->ki_lock, irql);
2421 /*
2422         KeFlushQueuedDpcs();
2423 */
2424         /* Disconnect our ISR */
2425
2426         IoDisconnectInterrupt(intr->ni_introbj);
2427
2428         KeWaitForSingleObject(&intr->ni_dpcevt, 0, 0, FALSE, NULL);
2429         KeResetEvent(&intr->ni_dpcevt);
2430
2431         return;
2432 }
2433
2434 static void
2435 NdisMRegisterAdapterShutdownHandler(adapter, shutdownctx, shutdownfunc)
2436         ndis_handle             adapter;
2437         void                    *shutdownctx;
2438         ndis_shutdown_handler   shutdownfunc;
2439 {
2440         ndis_miniport_block     *block;
2441         ndis_miniport_characteristics *chars;
2442         struct ndis_softc       *sc;
2443
2444         if (adapter == NULL)
2445                 return;
2446
2447         block = (ndis_miniport_block *)adapter;
2448         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2449         chars = sc->ndis_chars;
2450
2451         chars->nmc_shutdown_handler = shutdownfunc;
2452         chars->nmc_rsvd0 = shutdownctx;
2453
2454         return;
2455 }
2456
2457 static void
2458 NdisMDeregisterAdapterShutdownHandler(adapter)
2459         ndis_handle             adapter;
2460 {
2461         ndis_miniport_block     *block;
2462         ndis_miniport_characteristics *chars;
2463         struct ndis_softc       *sc;
2464
2465         if (adapter == NULL)
2466                 return;
2467
2468         block = (ndis_miniport_block *)adapter;
2469         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2470         chars = sc->ndis_chars;
2471
2472         chars->nmc_shutdown_handler = NULL;
2473         chars->nmc_rsvd0 = NULL;
2474
2475         return;
2476 }
2477
2478 static uint32_t
2479 NDIS_BUFFER_TO_SPAN_PAGES(buf)
2480         ndis_buffer             *buf;
2481 {
2482         if (buf == NULL)
2483                 return(0);
2484         if (MmGetMdlByteCount(buf) == 0)
2485                 return(1);
2486         return(SPAN_PAGES(MmGetMdlVirtualAddress(buf),
2487             MmGetMdlByteCount(buf)));
2488 }
2489
2490 static void
2491 NdisGetBufferPhysicalArraySize(buf, pages)
2492         ndis_buffer             *buf;
2493         uint32_t                *pages;
2494 {
2495         if (buf == NULL)
2496                 return;
2497
2498         *pages = NDIS_BUFFER_TO_SPAN_PAGES(buf);
2499         return;
2500 }
2501
2502 static void
2503 NdisQueryBufferOffset(buf, off, len)
2504         ndis_buffer             *buf;
2505         uint32_t                *off;
2506         uint32_t                *len;
2507 {
2508         if (buf == NULL)
2509                 return;
2510
2511         *off = MmGetMdlByteOffset(buf);
2512         *len = MmGetMdlByteCount(buf);
2513
2514         return;
2515 }
2516
2517 void
2518 NdisMSleep(usecs)
2519         uint32_t                usecs;
2520 {
2521         ktimer                  timer;
2522
2523         /*
2524          * During system bootstrap, (i.e. cold == 1), we aren't
2525          * allowed to sleep, so we have to do a hard DELAY()
2526          * instead.
2527          */
2528
2529         if (cold)
2530                 DELAY(usecs);
2531         else {
2532                 KeInitializeTimer(&timer);
2533                 KeSetTimer(&timer, ((int64_t)usecs * -10), NULL);
2534                 KeWaitForSingleObject(&timer, 0, 0, FALSE, NULL);
2535         }
2536
2537         return;
2538 }
2539
2540 static uint32_t
2541 NdisReadPcmciaAttributeMemory(handle, offset, buf, len)
2542         ndis_handle             handle;
2543         uint32_t                offset;
2544         void                    *buf;
2545         uint32_t                len;
2546 {
2547         struct ndis_softc       *sc;
2548         ndis_miniport_block     *block;
2549         bus_space_handle_t      bh;
2550         bus_space_tag_t         bt;
2551         char                    *dest;
2552         int                     i;
2553
2554         if (handle == NULL)
2555                 return(0);
2556
2557         block = (ndis_miniport_block *)handle;
2558         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2559         dest = buf;
2560
2561         bh = rman_get_bushandle(sc->ndis_res_am);
2562         bt = rman_get_bustag(sc->ndis_res_am);
2563
2564         for (i = 0; i < len; i++)
2565                 dest[i] = bus_space_read_1(bt, bh, (offset + i) * 2);
2566
2567         return(i);
2568 }
2569
2570 static uint32_t
2571 NdisWritePcmciaAttributeMemory(handle, offset, buf, len)
2572         ndis_handle             handle;
2573         uint32_t                offset;
2574         void                    *buf;
2575         uint32_t                len;
2576 {
2577         struct ndis_softc       *sc;
2578         ndis_miniport_block     *block;
2579         bus_space_handle_t      bh;
2580         bus_space_tag_t         bt;
2581         char                    *src;
2582         int                     i;
2583
2584         if (handle == NULL)
2585                 return(0);
2586
2587         block = (ndis_miniport_block *)handle;
2588         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2589         src = buf;
2590
2591         bh = rman_get_bushandle(sc->ndis_res_am);
2592         bt = rman_get_bustag(sc->ndis_res_am);
2593
2594         for (i = 0; i < len; i++)
2595                 bus_space_write_1(bt, bh, (offset + i) * 2, src[i]);
2596
2597         return(i);
2598 }
2599
2600 static list_entry *
2601 NdisInterlockedInsertHeadList(head, entry, lock)
2602         list_entry              *head;
2603         list_entry              *entry;
2604         ndis_spin_lock          *lock;
2605 {
2606         list_entry              *flink;
2607
2608         KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
2609         flink = head->nle_flink;
2610         entry->nle_flink = flink;
2611         entry->nle_blink = head;
2612         flink->nle_blink = entry;
2613         head->nle_flink = entry;
2614         KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
2615
2616         return(flink);
2617 }
2618
2619 static list_entry *
2620 NdisInterlockedRemoveHeadList(head, lock)
2621         list_entry              *head;
2622         ndis_spin_lock          *lock;
2623 {
2624         list_entry              *flink;
2625         list_entry              *entry;
2626
2627         KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
2628         entry = head->nle_flink;
2629         flink = entry->nle_flink;
2630         head->nle_flink = flink;
2631         flink->nle_blink = head;
2632         KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
2633
2634         return(entry);
2635 }
2636
2637 static list_entry *
2638 NdisInterlockedInsertTailList(head, entry, lock)
2639         list_entry              *head;
2640         list_entry              *entry;
2641         ndis_spin_lock          *lock;
2642 {
2643         list_entry              *blink;
2644
2645         KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
2646         blink = head->nle_blink;
2647         entry->nle_flink = head;
2648         entry->nle_blink = blink;
2649         blink->nle_flink = entry;
2650         head->nle_blink = entry;
2651         KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
2652
2653         return(blink);
2654 }
2655
2656 static uint8_t
2657 NdisMSynchronizeWithInterrupt(intr, syncfunc, syncctx)
2658         ndis_miniport_interrupt *intr;
2659         void                    *syncfunc;
2660         void                    *syncctx;
2661 {
2662         return(KeSynchronizeExecution(intr->ni_introbj, syncfunc, syncctx));
2663 }
2664
2665 static void
2666 NdisGetCurrentSystemTime(tval)
2667         uint64_t                *tval;
2668 {
2669         ntoskrnl_time(tval);
2670         return;
2671 }
2672
2673 /*
2674  * Return the number of milliseconds since the system booted.
2675  */
2676 static void
2677 NdisGetSystemUpTime(tval)
2678         uint32_t                *tval;
2679 {
2680         struct timespec         ts;
2681
2682         nanouptime(&ts);
2683         *tval = ts.tv_nsec / 1000000 + ts.tv_sec * 1000;
2684
2685         return;
2686 }
2687
2688 static void
2689 NdisInitializeString(dst, src)
2690         unicode_string          *dst;
2691         char                    *src;
2692 {
2693         ansi_string             as;
2694         RtlInitAnsiString(&as, src);
2695         RtlAnsiStringToUnicodeString(dst, &as, TRUE);
2696         return;
2697 }
2698
2699 static void
2700 NdisFreeString(str)
2701         unicode_string          *str;
2702 {
2703         RtlFreeUnicodeString(str);
2704         return;
2705 }
2706
2707 static ndis_status
2708 NdisMRemoveMiniport(adapter)
2709         ndis_handle             *adapter;
2710 {
2711         return(NDIS_STATUS_SUCCESS);
2712 }
2713
2714 static void
2715 NdisInitAnsiString(dst, src)
2716         ansi_string             *dst;
2717         char                    *src;
2718 {
2719         RtlInitAnsiString(dst, src);
2720         return;
2721 }
2722
2723 static void
2724 NdisInitUnicodeString(dst, src)
2725         unicode_string          *dst;
2726         uint16_t                *src;
2727 {
2728         RtlInitUnicodeString(dst, src);
2729         return;
2730 }
2731
2732 static void NdisMGetDeviceProperty(adapter, phydevobj,
2733         funcdevobj, nextdevobj, resources, transresources)
2734         ndis_handle             adapter;
2735         device_object           **phydevobj;
2736         device_object           **funcdevobj;
2737         device_object           **nextdevobj;
2738         cm_resource_list        *resources;
2739         cm_resource_list        *transresources;
2740 {
2741         ndis_miniport_block     *block;
2742
2743         block = (ndis_miniport_block *)adapter;
2744
2745         if (phydevobj != NULL)
2746                 *phydevobj = block->nmb_physdeviceobj;
2747         if (funcdevobj != NULL)
2748                 *funcdevobj = block->nmb_deviceobj;
2749         if (nextdevobj != NULL)
2750                 *nextdevobj = block->nmb_nextdeviceobj;
2751
2752         return;
2753 }
2754
2755 static void
2756 NdisGetFirstBufferFromPacket(packet, buf, firstva, firstlen, totlen)
2757         ndis_packet             *packet;
2758         ndis_buffer             **buf;
2759         void                    **firstva;
2760         uint32_t                *firstlen;
2761         uint32_t                *totlen;
2762 {
2763         ndis_buffer             *tmp;
2764
2765         tmp = packet->np_private.npp_head;
2766         *buf = tmp;
2767         if (tmp == NULL) {
2768                 *firstva = NULL;
2769                 *firstlen = *totlen = 0;
2770         } else {
2771                 *firstva = MmGetMdlVirtualAddress(tmp);
2772                 *firstlen = *totlen = MmGetMdlByteCount(tmp);
2773                 for (tmp = tmp->mdl_next; tmp != NULL; tmp = tmp->mdl_next)
2774                         *totlen += MmGetMdlByteCount(tmp);
2775         }
2776
2777         return;
2778 }
2779
2780 static void
2781 NdisGetFirstBufferFromPacketSafe(packet, buf, firstva, firstlen, totlen, prio)
2782         ndis_packet             *packet;
2783         ndis_buffer             **buf;
2784         void                    **firstva;
2785         uint32_t                *firstlen;
2786         uint32_t                *totlen;
2787         uint32_t                prio;
2788 {
2789         NdisGetFirstBufferFromPacket(packet, buf, firstva, firstlen, totlen);
2790 }
2791
2792 static int
2793 ndis_find_sym(lf, filename, suffix, sym)
2794         linker_file_t           lf;
2795         char                    *filename;
2796         char                    *suffix;
2797         caddr_t                 *sym;
2798 {
2799         char                    *fullsym;
2800         char                    *suf;
2801         int                     i;
2802
2803         fullsym = ExAllocatePoolWithTag(NonPagedPool, MAXPATHLEN, 0);
2804         if (fullsym == NULL)
2805                 return(ENOMEM);
2806
2807         bzero(fullsym, MAXPATHLEN);
2808         strncpy(fullsym, filename, MAXPATHLEN);
2809         if (strlen(filename) < 4) {
2810                 ExFreePool(fullsym);
2811                 return(EINVAL);
2812         }
2813
2814         /* If the filename has a .ko suffix, strip if off. */
2815         suf = fullsym + (strlen(filename) - 3);
2816         if (strcmp(suf, ".ko") == 0)
2817                 *suf = '\0';
2818
2819         for (i = 0; i < strlen(fullsym); i++) {
2820                 if (fullsym[i] == '.')
2821                         fullsym[i] = '_';
2822                 else
2823                         fullsym[i] = tolower(fullsym[i]);
2824         }
2825         strcat(fullsym, suffix);
2826         *sym = linker_file_lookup_symbol(lf, fullsym, 0);
2827         ExFreePool(fullsym);
2828         if (*sym == 0)
2829                 return(ENOENT);
2830
2831         return(0);
2832 }
2833
2834 struct ndis_checkmodule {
2835         char    *afilename;
2836         ndis_fh *fh;
2837 };
2838
2839 /*
2840  * See if a single module contains the symbols for a specified file.
2841  */
2842 static int
2843 NdisCheckModule(linker_file_t lf, void *context)
2844 {
2845         struct ndis_checkmodule *nc;
2846         caddr_t                 kldstart, kldend;
2847
2848         nc = (struct ndis_checkmodule *)context;
2849         if (ndis_find_sym(lf, nc->afilename, "_start", &kldstart))
2850                 return (0);
2851         if (ndis_find_sym(lf, nc->afilename, "_end", &kldend))
2852                 return (0);
2853         nc->fh->nf_vp = lf;
2854         nc->fh->nf_map = NULL;
2855         nc->fh->nf_type = NDIS_FH_TYPE_MODULE;
2856         nc->fh->nf_maplen = (kldend - kldstart) & 0xFFFFFFFF;
2857         return (1);
2858 }
2859
2860 /* can also return NDIS_STATUS_RESOURCES/NDIS_STATUS_ERROR_READING_FILE */
2861 static void
2862 NdisOpenFile(status, filehandle, filelength, filename, highestaddr)
2863         ndis_status             *status;
2864         ndis_handle             *filehandle;
2865         uint32_t                *filelength;
2866         unicode_string          *filename;
2867         ndis_physaddr           highestaddr;
2868 {
2869         ansi_string             as;
2870         char                    *afilename = NULL;
2871         struct thread           *td = curthread;
2872         struct nameidata        nd;
2873         int                     flags, error, vfslocked;
2874         struct vattr            vat;
2875         struct vattr            *vap = &vat;
2876         ndis_fh                 *fh;
2877         char                    *path;
2878         struct ndis_checkmodule nc;
2879
2880         if (RtlUnicodeStringToAnsiString(&as, filename, TRUE)) {
2881                 *status = NDIS_STATUS_RESOURCES;
2882                 return;
2883         }
2884
2885         afilename = strdup(as.as_buf, M_DEVBUF);
2886         RtlFreeAnsiString(&as);
2887
2888         fh = ExAllocatePoolWithTag(NonPagedPool, sizeof(ndis_fh), 0);
2889         if (fh == NULL) {
2890                 free(afilename, M_DEVBUF);
2891                 *status = NDIS_STATUS_RESOURCES;
2892                 return;
2893         }
2894
2895         fh->nf_name = afilename;
2896
2897         /*
2898          * During system bootstrap, it's impossible to load files
2899          * from the rootfs since it's not mounted yet. We therefore
2900          * offer the possibility of opening files that have been
2901          * preloaded as modules instead. Both choices will work
2902          * when kldloading a module from multiuser, but only the
2903          * module option will work during bootstrap. The module
2904          * loading option works by using the ndiscvt(8) utility
2905          * to convert the arbitrary file into a .ko using objcopy(1).
2906          * This file will contain two special symbols: filename_start
2907          * and filename_end. All we have to do is traverse the KLD
2908          * list in search of those symbols and we've found the file
2909          * data. As an added bonus, ndiscvt(8) will also generate
2910          * a normal .o file which can be linked statically with
2911          * the kernel. This means that the symbols will actual reside
2912          * in the kernel's symbol table, but that doesn't matter to
2913          * us since the kernel appears to us as just another module.
2914          */
2915
2916         nc.afilename = afilename;
2917         nc.fh = fh;
2918         if (linker_file_foreach(NdisCheckModule, &nc)) {
2919                 *filelength = fh->nf_maplen;
2920                 *filehandle = fh;
2921                 *status = NDIS_STATUS_SUCCESS;
2922                 return;
2923         }
2924
2925         if (TAILQ_EMPTY(&mountlist)) {
2926                 ExFreePool(fh);
2927                 *status = NDIS_STATUS_FILE_NOT_FOUND;
2928                 printf("NDIS: could not find file %s in linker list\n",
2929                     afilename);
2930                 printf("NDIS: and no filesystems mounted yet, "
2931                     "aborting NdisOpenFile()\n");
2932                 free(afilename, M_DEVBUF);
2933                 return;
2934         }
2935
2936         path = ExAllocatePoolWithTag(NonPagedPool, MAXPATHLEN, 0);
2937         if (path == NULL) {
2938                 ExFreePool(fh);
2939                 free(afilename, M_DEVBUF);
2940                 *status = NDIS_STATUS_RESOURCES;
2941                 return;
2942         }
2943
2944         snprintf(path, MAXPATHLEN, "%s/%s", ndis_filepath, afilename);
2945
2946         /* Some threads don't have a current working directory. */
2947
2948         if (td->td_proc->p_fd->fd_rdir == NULL)
2949                 td->td_proc->p_fd->fd_rdir = rootvnode;
2950         if (td->td_proc->p_fd->fd_cdir == NULL)
2951                 td->td_proc->p_fd->fd_cdir = rootvnode;
2952
2953         NDINIT(&nd, LOOKUP, FOLLOW | MPSAFE, UIO_SYSSPACE, path, td);
2954
2955         flags = FREAD;
2956         error = vn_open(&nd, &flags, 0, NULL);
2957         if (error) {
2958                 *status = NDIS_STATUS_FILE_NOT_FOUND;
2959                 ExFreePool(fh);
2960                 printf("NDIS: open file %s failed: %d\n", path, error);
2961                 ExFreePool(path);
2962                 free(afilename, M_DEVBUF);
2963                 return;
2964         }
2965         vfslocked = NDHASGIANT(&nd);
2966
2967         ExFreePool(path);
2968
2969         NDFREE(&nd, NDF_ONLY_PNBUF);
2970
2971         /* Get the file size. */
2972         VOP_GETATTR(nd.ni_vp, vap, td->td_ucred, td);
2973         VOP_UNLOCK(nd.ni_vp, 0);
2974         VFS_UNLOCK_GIANT(vfslocked);
2975
2976         fh->nf_vp = nd.ni_vp;
2977         fh->nf_map = NULL;
2978         fh->nf_type = NDIS_FH_TYPE_VFS;
2979         *filehandle = fh;
2980         *filelength = fh->nf_maplen = vap->va_size & 0xFFFFFFFF;
2981         *status = NDIS_STATUS_SUCCESS;
2982
2983         return;
2984 }
2985
2986 static void
2987 NdisMapFile(status, mappedbuffer, filehandle)
2988         ndis_status             *status;
2989         void                    **mappedbuffer;
2990         ndis_handle             filehandle;
2991 {
2992         ndis_fh                 *fh;
2993         struct thread           *td = curthread;
2994         linker_file_t           lf;
2995         caddr_t                 kldstart;
2996         int                     error, resid, vfslocked;
2997         struct vnode            *vp;
2998
2999         if (filehandle == NULL) {
3000                 *status = NDIS_STATUS_FAILURE;
3001                 return;
3002         }
3003
3004         fh = (ndis_fh *)filehandle;
3005
3006         if (fh->nf_vp == NULL) {
3007                 *status = NDIS_STATUS_FAILURE;
3008                 return;
3009         }
3010
3011         if (fh->nf_map != NULL) {
3012                 *status = NDIS_STATUS_ALREADY_MAPPED;
3013                 return;
3014         }
3015
3016         if (fh->nf_type == NDIS_FH_TYPE_MODULE) {
3017                 lf = fh->nf_vp;
3018                 if (ndis_find_sym(lf, fh->nf_name, "_start", &kldstart)) {
3019                         *status = NDIS_STATUS_FAILURE;
3020                         return;
3021                 }
3022                 fh->nf_map = kldstart;
3023                 *status = NDIS_STATUS_SUCCESS;
3024                 *mappedbuffer = fh->nf_map;
3025                 return;
3026         }
3027
3028         fh->nf_map = ExAllocatePoolWithTag(NonPagedPool, fh->nf_maplen, 0);
3029
3030         if (fh->nf_map == NULL) {
3031                 *status = NDIS_STATUS_RESOURCES;
3032                 return;
3033         }
3034
3035         vp = fh->nf_vp;
3036         vfslocked = VFS_LOCK_GIANT(vp->v_mount);
3037         error = vn_rdwr(UIO_READ, vp, fh->nf_map, fh->nf_maplen, 0,
3038             UIO_SYSSPACE, 0, td->td_ucred, NOCRED, &resid, td);
3039         VFS_UNLOCK_GIANT(vfslocked);
3040
3041         if (error)
3042                 *status = NDIS_STATUS_FAILURE;
3043         else {
3044                 *status = NDIS_STATUS_SUCCESS;
3045                 *mappedbuffer = fh->nf_map;
3046         }
3047
3048         return;
3049 }
3050
3051 static void
3052 NdisUnmapFile(filehandle)
3053         ndis_handle             filehandle;
3054 {
3055         ndis_fh                 *fh;
3056         fh = (ndis_fh *)filehandle;
3057
3058         if (fh->nf_map == NULL)
3059                 return;
3060
3061         if (fh->nf_type == NDIS_FH_TYPE_VFS)
3062                 ExFreePool(fh->nf_map);
3063         fh->nf_map = NULL;
3064
3065         return;
3066 }
3067
3068 static void
3069 NdisCloseFile(filehandle)
3070         ndis_handle             filehandle;
3071 {
3072         struct thread           *td = curthread;
3073         ndis_fh                 *fh;
3074         int                     vfslocked;
3075         struct vnode            *vp;
3076
3077         if (filehandle == NULL)
3078                 return;
3079
3080         fh = (ndis_fh *)filehandle;
3081         if (fh->nf_map != NULL) {
3082                 if (fh->nf_type == NDIS_FH_TYPE_VFS)
3083                         ExFreePool(fh->nf_map);
3084                 fh->nf_map = NULL;
3085         }
3086
3087         if (fh->nf_vp == NULL)
3088                 return;
3089
3090         if (fh->nf_type == NDIS_FH_TYPE_VFS) {
3091                 vp = fh->nf_vp;
3092                 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
3093                 vn_close(vp, FREAD, td->td_ucred, td);
3094                 VFS_UNLOCK_GIANT(vfslocked);
3095         }
3096
3097         fh->nf_vp = NULL;
3098         free(fh->nf_name, M_DEVBUF);
3099         ExFreePool(fh);
3100
3101         return;
3102 }
3103
3104 static uint8_t
3105 NdisSystemProcessorCount()
3106 {
3107         return(mp_ncpus);
3108 }
3109
3110 typedef void (*ndis_statusdone_handler)(ndis_handle);
3111 typedef void (*ndis_status_handler)(ndis_handle, ndis_status,
3112         void *, uint32_t);
3113
3114 static void
3115 NdisMIndicateStatusComplete(adapter)
3116         ndis_handle             adapter;
3117 {
3118         ndis_miniport_block     *block;
3119         ndis_statusdone_handler statusdonefunc;
3120
3121         block = (ndis_miniport_block *)adapter;
3122         statusdonefunc = block->nmb_statusdone_func;
3123
3124         MSCALL1(statusdonefunc, adapter);
3125         return;
3126 }
3127
3128 static void
3129 NdisMIndicateStatus(adapter, status, sbuf, slen)
3130         ndis_handle             adapter;
3131         ndis_status             status;
3132         void                    *sbuf;
3133         uint32_t                slen;
3134 {
3135         ndis_miniport_block     *block;
3136         ndis_status_handler     statusfunc;
3137
3138         block = (ndis_miniport_block *)adapter;
3139         statusfunc = block->nmb_status_func;
3140
3141         MSCALL4(statusfunc, adapter, status, sbuf, slen);
3142         return;
3143 }
3144
3145 /*
3146  * The DDK documentation says that you should use IoQueueWorkItem()
3147  * instead of ExQueueWorkItem(). The problem is, IoQueueWorkItem()
3148  * is fundamentally incompatible with NdisScheduleWorkItem(), which
3149  * depends on the API semantics of ExQueueWorkItem(). In our world,
3150  * ExQueueWorkItem() is implemented on top of IoAllocateQueueItem()
3151  * anyway.
3152  *
3153  * There are actually three distinct APIs here. NdisScheduleWorkItem()
3154  * takes a pointer to an NDIS_WORK_ITEM. ExQueueWorkItem() takes a pointer
3155  * to a WORK_QUEUE_ITEM. And finally, IoQueueWorkItem() takes a pointer
3156  * to an opaque work item thingie which you get from IoAllocateWorkItem().
3157  * An NDIS_WORK_ITEM is not the same as a WORK_QUEUE_ITEM. However,
3158  * the NDIS_WORK_ITEM has some opaque storage at the end of it, and we
3159  * (ab)use this storage as a WORK_QUEUE_ITEM, which is what we submit
3160  * to ExQueueWorkItem().
3161  *
3162  * Got all that? (Sheesh.)
3163  */
3164
3165 ndis_status
3166 NdisScheduleWorkItem(work)
3167         ndis_work_item          *work;
3168 {
3169         work_queue_item         *wqi;
3170
3171         wqi = (work_queue_item *)work->nwi_wraprsvd;
3172         ExInitializeWorkItem(wqi,
3173             (work_item_func)work->nwi_func, work->nwi_ctx);
3174         ExQueueWorkItem(wqi, WORKQUEUE_DELAYED);
3175
3176         return(NDIS_STATUS_SUCCESS);
3177 }
3178
3179 static void
3180 NdisCopyFromPacketToPacket(dpkt, doff, reqlen, spkt, soff, cpylen)
3181         ndis_packet             *dpkt;
3182         uint32_t                doff;
3183         uint32_t                reqlen;
3184         ndis_packet             *spkt;
3185         uint32_t                soff;
3186         uint32_t                *cpylen;
3187 {
3188         ndis_buffer             *src, *dst;
3189         char                    *sptr, *dptr;
3190         int                     resid, copied, len, scnt, dcnt;
3191
3192         *cpylen = 0;
3193
3194         src = spkt->np_private.npp_head;
3195         dst = dpkt->np_private.npp_head;
3196
3197         sptr = MmGetMdlVirtualAddress(src);
3198         dptr = MmGetMdlVirtualAddress(dst);
3199         scnt = MmGetMdlByteCount(src);
3200         dcnt = MmGetMdlByteCount(dst);
3201
3202         while (soff) {
3203                 if (MmGetMdlByteCount(src) > soff) {
3204                         sptr += soff;
3205                         scnt = MmGetMdlByteCount(src)- soff;
3206                         break;
3207                 }
3208                 soff -= MmGetMdlByteCount(src);
3209                 src = src->mdl_next;
3210                 if (src == NULL)
3211                         return;
3212                 sptr = MmGetMdlVirtualAddress(src);
3213         }
3214
3215         while (doff) {
3216                 if (MmGetMdlByteCount(dst) > doff) {
3217                         dptr += doff;
3218                         dcnt = MmGetMdlByteCount(dst) - doff;
3219                         break;
3220                 }
3221                 doff -= MmGetMdlByteCount(dst);
3222                 dst = dst->mdl_next;
3223                 if (dst == NULL)
3224                         return;
3225                 dptr = MmGetMdlVirtualAddress(dst);
3226         }
3227
3228         resid = reqlen;
3229         copied = 0;
3230
3231         while(1) {
3232                 if (resid < scnt)
3233                         len = resid;
3234                 else
3235                         len = scnt;
3236                 if (dcnt < len)
3237                         len = dcnt;
3238
3239                 bcopy(sptr, dptr, len);
3240
3241                 copied += len;
3242                 resid -= len;
3243                 if (resid == 0)
3244                         break;
3245
3246                 dcnt -= len;
3247                 if (dcnt == 0) {
3248                         dst = dst->mdl_next;
3249                         if (dst == NULL)
3250                                 break;
3251                         dptr = MmGetMdlVirtualAddress(dst);
3252                         dcnt = MmGetMdlByteCount(dst);
3253                 }
3254
3255                 scnt -= len;
3256                 if (scnt == 0) {
3257                         src = src->mdl_next;
3258                         if (src == NULL)
3259                                 break;
3260                         sptr = MmGetMdlVirtualAddress(src);
3261                         scnt = MmGetMdlByteCount(src);
3262                 }
3263         }
3264
3265         *cpylen = copied;
3266         return;
3267 }
3268
3269 static void
3270 NdisCopyFromPacketToPacketSafe(dpkt, doff, reqlen, spkt, soff, cpylen, prio)
3271         ndis_packet             *dpkt;
3272         uint32_t                doff;
3273         uint32_t                reqlen;
3274         ndis_packet             *spkt;
3275         uint32_t                soff;
3276         uint32_t                *cpylen;
3277         uint32_t                prio;
3278 {
3279         NdisCopyFromPacketToPacket(dpkt, doff, reqlen, spkt, soff, cpylen);
3280         return;
3281 }
3282
3283 static void
3284 NdisIMCopySendPerPacketInfo(dpkt, spkt)
3285         ndis_packet             *dpkt;
3286         ndis_packet             *spkt;
3287 {
3288         memcpy(&dpkt->np_ext, &spkt->np_ext, sizeof(ndis_packet_extension));
3289 }
3290
3291 static ndis_status
3292 NdisMRegisterDevice(handle, devname, symname, majorfuncs, devobj, devhandle)
3293         ndis_handle             handle;
3294         unicode_string          *devname;
3295         unicode_string          *symname;
3296         driver_dispatch         *majorfuncs[];
3297         void                    **devobj;
3298         ndis_handle             *devhandle;
3299 {
3300         uint32_t                status;
3301         device_object           *dobj;
3302
3303         status = IoCreateDevice(handle, 0, devname,
3304             FILE_DEVICE_UNKNOWN, 0, FALSE, &dobj);
3305
3306         if (status == STATUS_SUCCESS) {
3307                 *devobj = dobj;
3308                 *devhandle = dobj;
3309         }
3310
3311         return(status);
3312 }
3313
3314 static ndis_status
3315 NdisMDeregisterDevice(handle)
3316         ndis_handle             handle;
3317 {
3318         IoDeleteDevice(handle);
3319         return(NDIS_STATUS_SUCCESS);
3320 }
3321
3322 static ndis_status
3323 NdisMQueryAdapterInstanceName(name, handle)
3324         unicode_string          *name;
3325         ndis_handle             handle;
3326 {
3327         ndis_miniport_block     *block;
3328         device_t                dev;
3329         ansi_string             as;
3330
3331         block = (ndis_miniport_block *)handle;
3332         dev = block->nmb_physdeviceobj->do_devext;
3333
3334         RtlInitAnsiString(&as, __DECONST(char *, device_get_nameunit(dev)));
3335         if (RtlAnsiStringToUnicodeString(name, &as, TRUE))
3336                 return(NDIS_STATUS_RESOURCES);
3337
3338         return(NDIS_STATUS_SUCCESS);
3339 }
3340
3341 static void
3342 NdisMRegisterUnloadHandler(handle, func)
3343         ndis_handle             handle;
3344         void                    *func;
3345 {
3346         return;
3347 }
3348
3349 static void
3350 dummy()
3351 {
3352         printf ("NDIS dummy called...\n");
3353         return;
3354 }
3355
3356 /*
3357  * Note: a couple of entries in this table specify the
3358  * number of arguments as "foo + 1". These are routines
3359  * that accept a 64-bit argument, passed by value. On
3360  * x86, these arguments consume two longwords on the stack,
3361  * so we lie and say there's one additional argument so
3362  * that the wrapping routines will do the right thing.
3363  */
3364
3365 image_patch_table ndis_functbl[] = {
3366         IMPORT_SFUNC(NdisCopyFromPacketToPacket, 6),
3367         IMPORT_SFUNC(NdisCopyFromPacketToPacketSafe, 7),
3368         IMPORT_SFUNC(NdisIMCopySendPerPacketInfo, 2),
3369         IMPORT_SFUNC(NdisScheduleWorkItem, 1),
3370         IMPORT_SFUNC(NdisMIndicateStatusComplete, 1),
3371         IMPORT_SFUNC(NdisMIndicateStatus, 4),
3372         IMPORT_SFUNC(NdisSystemProcessorCount, 0),
3373         IMPORT_SFUNC(NdisUnchainBufferAtBack, 2),
3374         IMPORT_SFUNC(NdisGetFirstBufferFromPacket, 5),
3375         IMPORT_SFUNC(NdisGetFirstBufferFromPacketSafe, 6),
3376         IMPORT_SFUNC(NdisGetBufferPhysicalArraySize, 2),
3377         IMPORT_SFUNC(NdisMGetDeviceProperty, 6),
3378         IMPORT_SFUNC(NdisInitAnsiString, 2),
3379         IMPORT_SFUNC(NdisInitUnicodeString, 2),
3380         IMPORT_SFUNC(NdisWriteConfiguration, 4),
3381         IMPORT_SFUNC(NdisAnsiStringToUnicodeString, 2),
3382         IMPORT_SFUNC(NdisTerminateWrapper, 2),
3383         IMPORT_SFUNC(NdisOpenConfigurationKeyByName, 4),
3384         IMPORT_SFUNC(NdisOpenConfigurationKeyByIndex, 5),
3385         IMPORT_SFUNC(NdisMRemoveMiniport, 1),
3386         IMPORT_SFUNC(NdisInitializeString, 2),
3387         IMPORT_SFUNC(NdisFreeString, 1),
3388         IMPORT_SFUNC(NdisGetCurrentSystemTime, 1),
3389         IMPORT_SFUNC(NdisGetSystemUpTime, 1),
3390         IMPORT_SFUNC(NdisMSynchronizeWithInterrupt, 3),
3391         IMPORT_SFUNC(NdisMAllocateSharedMemoryAsync, 4),
3392         IMPORT_SFUNC(NdisInterlockedInsertHeadList, 3),
3393         IMPORT_SFUNC(NdisInterlockedInsertTailList, 3),
3394         IMPORT_SFUNC(NdisInterlockedRemoveHeadList, 2),
3395         IMPORT_SFUNC(NdisInitializeWrapper, 4),
3396         IMPORT_SFUNC(NdisMRegisterMiniport, 3),
3397         IMPORT_SFUNC(NdisAllocateMemoryWithTag, 3),
3398         IMPORT_SFUNC(NdisAllocateMemory, 4 + 1),
3399         IMPORT_SFUNC(NdisMSetAttributesEx, 5),
3400         IMPORT_SFUNC(NdisCloseConfiguration, 1),
3401         IMPORT_SFUNC(NdisReadConfiguration, 5),
3402         IMPORT_SFUNC(NdisOpenConfiguration, 3),
3403         IMPORT_SFUNC(NdisAcquireSpinLock, 1),
3404         IMPORT_SFUNC(NdisReleaseSpinLock, 1),
3405         IMPORT_SFUNC(NdisDprAcquireSpinLock, 1),
3406         IMPORT_SFUNC(NdisDprReleaseSpinLock, 1),
3407         IMPORT_SFUNC(NdisAllocateSpinLock, 1),
3408         IMPORT_SFUNC(NdisInitializeReadWriteLock, 1),
3409         IMPORT_SFUNC(NdisAcquireReadWriteLock, 3),
3410         IMPORT_SFUNC(NdisReleaseReadWriteLock, 2),
3411         IMPORT_SFUNC(NdisFreeSpinLock, 1),
3412         IMPORT_SFUNC(NdisFreeMemory, 3),
3413         IMPORT_SFUNC(NdisReadPciSlotInformation, 5),
3414         IMPORT_SFUNC(NdisWritePciSlotInformation, 5),
3415         IMPORT_SFUNC_MAP(NdisImmediateReadPciSlotInformation,
3416             NdisReadPciSlotInformation, 5),
3417         IMPORT_SFUNC_MAP(NdisImmediateWritePciSlotInformation,
3418             NdisWritePciSlotInformation, 5),
3419         IMPORT_CFUNC(NdisWriteErrorLogEntry, 0),
3420         IMPORT_SFUNC(NdisMStartBufferPhysicalMapping, 6),
3421         IMPORT_SFUNC(NdisMCompleteBufferPhysicalMapping, 3),
3422         IMPORT_SFUNC(NdisMInitializeTimer, 4),
3423         IMPORT_SFUNC(NdisInitializeTimer, 3),
3424         IMPORT_SFUNC(NdisSetTimer, 2),
3425         IMPORT_SFUNC(NdisMCancelTimer, 2),
3426         IMPORT_SFUNC_MAP(NdisCancelTimer, NdisMCancelTimer, 2),
3427         IMPORT_SFUNC(NdisMSetPeriodicTimer, 2),
3428         IMPORT_SFUNC(NdisMQueryAdapterResources, 4),
3429         IMPORT_SFUNC(NdisMRegisterIoPortRange, 4),
3430         IMPORT_SFUNC(NdisMDeregisterIoPortRange, 4),
3431         IMPORT_SFUNC(NdisReadNetworkAddress, 4),
3432         IMPORT_SFUNC(NdisQueryMapRegisterCount, 2),
3433         IMPORT_SFUNC(NdisMAllocateMapRegisters, 5),
3434         IMPORT_SFUNC(NdisMFreeMapRegisters, 1),
3435         IMPORT_SFUNC(NdisMAllocateSharedMemory, 5),
3436         IMPORT_SFUNC(NdisMMapIoSpace, 4 + 1),
3437         IMPORT_SFUNC(NdisMUnmapIoSpace, 3),
3438         IMPORT_SFUNC(NdisGetCacheFillSize, 0),
3439         IMPORT_SFUNC(NdisMGetDmaAlignment, 1),
3440         IMPORT_SFUNC(NdisMInitializeScatterGatherDma, 3),
3441         IMPORT_SFUNC(NdisAllocatePacketPool, 4),
3442         IMPORT_SFUNC(NdisAllocatePacketPoolEx, 5),
3443         IMPORT_SFUNC(NdisAllocatePacket, 3),
3444         IMPORT_SFUNC(NdisFreePacket, 1),
3445         IMPORT_SFUNC(NdisFreePacketPool, 1),
3446         IMPORT_SFUNC_MAP(NdisDprAllocatePacket, NdisAllocatePacket, 3),
3447         IMPORT_SFUNC_MAP(NdisDprFreePacket, NdisFreePacket, 1),
3448         IMPORT_SFUNC(NdisAllocateBufferPool, 3),
3449         IMPORT_SFUNC(NdisAllocateBuffer, 5),
3450         IMPORT_SFUNC(NdisQueryBuffer, 3),
3451         IMPORT_SFUNC(NdisQueryBufferSafe, 4),
3452         IMPORT_SFUNC(NdisBufferVirtualAddress, 1),
3453         IMPORT_SFUNC(NdisBufferVirtualAddressSafe, 2),
3454         IMPORT_SFUNC(NdisBufferLength, 1),
3455         IMPORT_SFUNC(NdisFreeBuffer, 1),
3456         IMPORT_SFUNC(NdisFreeBufferPool, 1),
3457         IMPORT_SFUNC(NdisInterlockedIncrement, 1),
3458         IMPORT_SFUNC(NdisInterlockedDecrement, 1),
3459         IMPORT_SFUNC(NdisInitializeEvent, 1),
3460         IMPORT_SFUNC(NdisSetEvent, 1),
3461         IMPORT_SFUNC(NdisResetEvent, 1),
3462         IMPORT_SFUNC(NdisWaitEvent, 2),
3463         IMPORT_SFUNC(NdisUnicodeStringToAnsiString, 2),
3464         IMPORT_SFUNC(NdisMPciAssignResources, 3),
3465         IMPORT_SFUNC(NdisMFreeSharedMemory, 5 + 1),
3466         IMPORT_SFUNC(NdisMRegisterInterrupt, 7),
3467         IMPORT_SFUNC(NdisMDeregisterInterrupt, 1),
3468         IMPORT_SFUNC(NdisMRegisterAdapterShutdownHandler, 3),
3469         IMPORT_SFUNC(NdisMDeregisterAdapterShutdownHandler, 1),
3470         IMPORT_SFUNC(NDIS_BUFFER_TO_SPAN_PAGES, 1),
3471         IMPORT_SFUNC(NdisQueryBufferOffset, 3),
3472         IMPORT_SFUNC(NdisAdjustBufferLength, 2),
3473         IMPORT_SFUNC(NdisPacketPoolUsage, 1),
3474         IMPORT_SFUNC(NdisMSleep, 1),
3475         IMPORT_SFUNC(NdisUnchainBufferAtFront, 2),
3476         IMPORT_SFUNC(NdisReadPcmciaAttributeMemory, 4),
3477         IMPORT_SFUNC(NdisWritePcmciaAttributeMemory, 4),
3478         IMPORT_SFUNC(NdisOpenFile, 5 + 1),
3479         IMPORT_SFUNC(NdisMapFile, 3),
3480         IMPORT_SFUNC(NdisUnmapFile, 1),
3481         IMPORT_SFUNC(NdisCloseFile, 1),
3482         IMPORT_SFUNC(NdisMRegisterDevice, 6),
3483         IMPORT_SFUNC(NdisMDeregisterDevice, 1),
3484         IMPORT_SFUNC(NdisMQueryAdapterInstanceName, 2),
3485         IMPORT_SFUNC(NdisMRegisterUnloadHandler, 2),
3486         IMPORT_SFUNC(ndis_timercall, 4),
3487         IMPORT_SFUNC(ndis_asyncmem_complete, 2),
3488         IMPORT_SFUNC(ndis_intr, 2),
3489         IMPORT_SFUNC(ndis_intrhand, 4),
3490
3491         /*
3492          * This last entry is a catch-all for any function we haven't
3493          * implemented yet. The PE import list patching routine will
3494          * use it for any function that doesn't have an explicit match
3495          * in this table.
3496          */
3497
3498         { NULL, (FUNC)dummy, NULL, 0, WINDRV_WRAP_STDCALL },
3499
3500         /* End of list. */
3501
3502         { NULL, NULL, NULL }
3503 };