The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/emulation/ndis/subr_ndis.c

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    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  * $FreeBSD: src/sys/compat/ndis/subr_ndis.c,v 1.125 2010/12/06 20:54:53 bschmidt Exp $
   33  */
   34 
   35 /*
   36  * This file implements a translation layer between the BSD networking
   37  * infrasturcture and Windows(R) NDIS network driver modules. A Windows
   38  * NDIS driver calls into several functions in the NDIS.SYS Windows
   39  * kernel module and exports a table of functions designed to be called
   40  * by the NDIS subsystem. Using the PE loader, we can patch our own
   41  * versions of the NDIS routines into a given Windows driver module and
   42  * convince the driver that it is in fact running on Windows.
   43  *
   44  * We provide a table of all our implemented NDIS routines which is patched
   45  * into the driver object code. All our exported routines must use the
   46  * _stdcall calling convention, since that's what the Windows object code
   47  * expects.
   48  */
   49 
   50 #include "use_usb4bsd.h"
   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/queue.h>
   67 #include <sys/proc.h>
   68 #include <sys/filedesc.h>
   69 #include <sys/nlookup.h>
   70 #include <sys/fcntl.h>
   71 #include <sys/vnode.h>
   72 #include <sys/kthread.h>
   73 #include <sys/linker.h>
   74 #include <sys/mount.h>
   75 #include <sys/sysproto.h>
   76 
   77 #include <net/if.h>
   78 #include <net/if_arp.h>
   79 #include <net/ethernet.h>
   80 #include <net/if_dl.h>
   81 #include <net/if_media.h>
   82 
   83 #include <machine/atomic.h>
   84 
   85 #include <sys/bus.h>
   86 #include <sys/rman.h>
   87 #include <sys/mplock2.h>
   88 
   89 #include <netproto/802_11/ieee80211_var.h>
   90 #include <netproto/802_11/ieee80211_ioctl.h>
   91 
   92 #include <bus/pci/pcireg.h>
   93 #include <bus/pci/pcivar.h>
   94 #if NUSB4BSD > 0
   95 #include <bus/u4b/usb.h>
   96 #include <bus/u4b/usbdi.h>
   97 #else
   98 #include <bus/usb/usb.h>
   99 #include <bus/usb/usbdi.h>
  100 #endif
  101 
  102 #include <emulation/ndis/pe_var.h>
  103 #include <emulation/ndis/cfg_var.h>
  104 #include <emulation/ndis/resource_var.h>
  105 #include <emulation/ndis/ntoskrnl_var.h>
  106 #include <emulation/ndis/hal_var.h>
  107 #include <emulation/ndis/ndis_var.h>
  108 #include <dev/netif/ndis/if_ndisvar.h>
  109 
  110 #include <vm/vm.h>
  111 #include <vm/vm_param.h>
  112 #include <vm/pmap.h>
  113 #include <vm/vm_kern.h>
  114 #include <vm/vm_map.h>
  115 
  116 #include <stdarg.h>
  117 
  118 static char ndis_filepath[MAXPATHLEN];
  119 
  120 SYSCTL_STRING(_hw, OID_AUTO, ndis_filepath, CTLFLAG_RW, ndis_filepath,
  121         MAXPATHLEN, "Path used by NdisOpenFile() to search for files");
  122 
  123 static void NdisInitializeWrapper(ndis_handle *,
  124         driver_object *, void *, void *);
  125 static ndis_status NdisMRegisterMiniport(ndis_handle,
  126         ndis_miniport_characteristics *, int);
  127 static ndis_status NdisAllocateMemoryWithTag(void **,
  128         uint32_t, uint32_t);
  129 static ndis_status NdisAllocateMemory(void **,
  130         uint32_t, uint32_t, ndis_physaddr);
  131 static void NdisFreeMemory(void *, uint32_t, uint32_t);
  132 static ndis_status NdisMSetAttributesEx(ndis_handle, ndis_handle,
  133         uint32_t, uint32_t, ndis_interface_type);
  134 static void NdisOpenConfiguration(ndis_status *,
  135         ndis_handle *, ndis_handle);
  136 static void NdisOpenConfigurationKeyByIndex(ndis_status *,
  137         ndis_handle, uint32_t, unicode_string *, ndis_handle *);
  138 static void NdisOpenConfigurationKeyByName(ndis_status *,
  139         ndis_handle, unicode_string *, ndis_handle *);
  140 static ndis_status ndis_encode_parm(ndis_miniport_block *,
  141         struct sysctl_oid *, ndis_parm_type, ndis_config_parm **);
  142 static ndis_status ndis_decode_parm(ndis_miniport_block *,
  143         ndis_config_parm *, char *);
  144 static void NdisReadConfiguration(ndis_status *, ndis_config_parm **,
  145         ndis_handle, unicode_string *, ndis_parm_type);
  146 static void NdisWriteConfiguration(ndis_status *, ndis_handle,
  147         unicode_string *, ndis_config_parm *);
  148 static void NdisCloseConfiguration(ndis_handle);
  149 static void NdisAllocateSpinLock(ndis_spin_lock *);
  150 static void NdisFreeSpinLock(ndis_spin_lock *);
  151 static void NdisAcquireSpinLock(ndis_spin_lock *);
  152 static void NdisReleaseSpinLock(ndis_spin_lock *);
  153 static void NdisDprAcquireSpinLock(ndis_spin_lock *);
  154 static void NdisDprReleaseSpinLock(ndis_spin_lock *);
  155 static void NdisInitializeReadWriteLock(ndis_rw_lock *);
  156 static void NdisAcquireReadWriteLock(ndis_rw_lock *,
  157         uint8_t, ndis_lock_state *);
  158 static void NdisReleaseReadWriteLock(ndis_rw_lock *, ndis_lock_state *);
  159 static uint32_t NdisReadPciSlotInformation(ndis_handle, uint32_t,
  160         uint32_t, void *, uint32_t);
  161 static uint32_t NdisWritePciSlotInformation(ndis_handle, uint32_t,
  162         uint32_t, void *, uint32_t);
  163 static void NdisWriteErrorLogEntry(ndis_handle, ndis_error_code, uint32_t, ...);
  164 static void ndis_map_cb(void *, bus_dma_segment_t *, int, int);
  165 static void NdisMStartBufferPhysicalMapping(ndis_handle,
  166         ndis_buffer *, uint32_t, uint8_t, ndis_paddr_unit *, uint32_t *);
  167 static void NdisMCompleteBufferPhysicalMapping(ndis_handle,
  168         ndis_buffer *, uint32_t);
  169 static void NdisMInitializeTimer(ndis_miniport_timer *, ndis_handle,
  170         ndis_timer_function, void *);
  171 static void NdisInitializeTimer(ndis_timer *,
  172         ndis_timer_function, void *);
  173 static void NdisSetTimer(ndis_timer *, uint32_t);
  174 static void NdisMSetPeriodicTimer(ndis_miniport_timer *, uint32_t);
  175 static void NdisMCancelTimer(ndis_timer *, uint8_t *);
  176 static void ndis_timercall(kdpc *, ndis_miniport_timer *,
  177         void *, void *);
  178 static void NdisMQueryAdapterResources(ndis_status *, ndis_handle,
  179         ndis_resource_list *, uint32_t *);
  180 static ndis_status NdisMRegisterIoPortRange(void **,
  181         ndis_handle, uint32_t, uint32_t);
  182 static void NdisMDeregisterIoPortRange(ndis_handle,
  183         uint32_t, uint32_t, void *);
  184 static void NdisReadNetworkAddress(ndis_status *, void **,
  185         uint32_t *, ndis_handle);
  186 static ndis_status NdisQueryMapRegisterCount(uint32_t, uint32_t *);
  187 static ndis_status NdisMAllocateMapRegisters(ndis_handle,
  188         uint32_t, uint8_t, uint32_t, uint32_t);
  189 static void NdisMFreeMapRegisters(ndis_handle);
  190 static void ndis_mapshared_cb(void *, bus_dma_segment_t *, int, int);
  191 static void NdisMAllocateSharedMemory(ndis_handle, uint32_t,
  192         uint8_t, void **, ndis_physaddr *);
  193 static void ndis_asyncmem_complete(device_object *, void *);
  194 static ndis_status NdisMAllocateSharedMemoryAsync(ndis_handle,
  195         uint32_t, uint8_t, void *);
  196 static void NdisMFreeSharedMemory(ndis_handle, uint32_t,
  197         uint8_t, void *, ndis_physaddr);
  198 static ndis_status NdisMMapIoSpace(void **, ndis_handle,
  199         ndis_physaddr, uint32_t);
  200 static void NdisMUnmapIoSpace(ndis_handle, void *, uint32_t);
  201 static uint32_t NdisGetCacheFillSize(void);
  202 static void *NdisGetRoutineAddress(unicode_string *);
  203 static uint32_t NdisMGetDmaAlignment(ndis_handle);
  204 static ndis_status NdisMInitializeScatterGatherDma(ndis_handle,
  205         uint8_t, uint32_t);
  206 static void NdisUnchainBufferAtFront(ndis_packet *, ndis_buffer **);
  207 static void NdisUnchainBufferAtBack(ndis_packet *, ndis_buffer **);
  208 static void NdisAllocateBufferPool(ndis_status *,
  209         ndis_handle *, uint32_t);
  210 static void NdisFreeBufferPool(ndis_handle);
  211 static void NdisAllocateBuffer(ndis_status *, ndis_buffer **,
  212         ndis_handle, void *, uint32_t);
  213 static void NdisFreeBuffer(ndis_buffer *);
  214 static uint32_t NdisBufferLength(ndis_buffer *);
  215 static void NdisQueryBuffer(ndis_buffer *, void **, uint32_t *);
  216 static void NdisQueryBufferSafe(ndis_buffer *, void **,
  217         uint32_t *, uint32_t);
  218 static void *NdisBufferVirtualAddress(ndis_buffer *);
  219 static void *NdisBufferVirtualAddressSafe(ndis_buffer *, uint32_t);
  220 static void NdisAdjustBufferLength(ndis_buffer *, int);
  221 static uint32_t NdisInterlockedIncrement(uint32_t *);
  222 static uint32_t NdisInterlockedDecrement(uint32_t *);
  223 static void NdisInitializeEvent(ndis_event *);
  224 static void NdisSetEvent(ndis_event *);
  225 static void NdisResetEvent(ndis_event *);
  226 static uint8_t NdisWaitEvent(ndis_event *, uint32_t);
  227 static ndis_status NdisUnicodeStringToAnsiString(ansi_string *,
  228         unicode_string *);
  229 static ndis_status
  230         NdisAnsiStringToUnicodeString(unicode_string *, ansi_string *);
  231 static ndis_status NdisMPciAssignResources(ndis_handle,
  232         uint32_t, ndis_resource_list **);
  233 static ndis_status NdisMRegisterInterrupt(ndis_miniport_interrupt *,
  234         ndis_handle, uint32_t, uint32_t, uint8_t,
  235         uint8_t, ndis_interrupt_mode);
  236 static void NdisMDeregisterInterrupt(ndis_miniport_interrupt *);
  237 static void NdisMRegisterAdapterShutdownHandler(ndis_handle, void *,
  238         ndis_shutdown_handler);
  239 static void NdisMDeregisterAdapterShutdownHandler(ndis_handle);
  240 static uint32_t NDIS_BUFFER_TO_SPAN_PAGES(ndis_buffer *);
  241 static void NdisGetBufferPhysicalArraySize(ndis_buffer *,
  242         uint32_t *);
  243 static void NdisQueryBufferOffset(ndis_buffer *,
  244         uint32_t *, uint32_t *);
  245 static uint32_t NdisReadPcmciaAttributeMemory(ndis_handle,
  246         uint32_t, void *, uint32_t);
  247 static uint32_t NdisWritePcmciaAttributeMemory(ndis_handle,
  248         uint32_t, void *, uint32_t);
  249 static list_entry *NdisInterlockedInsertHeadList(list_entry *,
  250         list_entry *, ndis_spin_lock *);
  251 static list_entry *NdisInterlockedRemoveHeadList(list_entry *,
  252         ndis_spin_lock *);
  253 static list_entry *NdisInterlockedInsertTailList(list_entry *,
  254         list_entry *, ndis_spin_lock *);
  255 static uint8_t
  256         NdisMSynchronizeWithInterrupt(ndis_miniport_interrupt *,
  257         void *, void *);
  258 static void NdisGetCurrentSystemTime(uint64_t *);
  259 static void NdisGetSystemUpTime(uint32_t *);
  260 static uint32_t NdisGetVersion(void);
  261 static void NdisInitializeString(unicode_string *, char *);
  262 static void NdisInitAnsiString(ansi_string *, char *);
  263 static void NdisInitUnicodeString(unicode_string *, uint16_t *);
  264 static void NdisFreeString(unicode_string *);
  265 static ndis_status NdisMRemoveMiniport(ndis_handle *);
  266 static void NdisTerminateWrapper(ndis_handle, void *);
  267 static void NdisMGetDeviceProperty(ndis_handle, device_object **,
  268         device_object **, device_object **, cm_resource_list *,
  269         cm_resource_list *);
  270 static void NdisGetFirstBufferFromPacket(ndis_packet *,
  271         ndis_buffer **, void **, uint32_t *, uint32_t *);
  272 static void NdisGetFirstBufferFromPacketSafe(ndis_packet *,
  273         ndis_buffer **, void **, uint32_t *, uint32_t *, uint32_t);
  274 static int ndis_find_sym(linker_file_t, char *, char *, caddr_t *);
  275 static void NdisOpenFile(ndis_status *, ndis_handle *, uint32_t *,
  276         unicode_string *, ndis_physaddr);
  277 static void NdisMapFile(ndis_status *, void **, ndis_handle);
  278 static void NdisUnmapFile(ndis_handle);
  279 static void NdisCloseFile(ndis_handle);
  280 static uint8_t NdisSystemProcessorCount(void);
  281 static void NdisGetCurrentProcessorCounts(uint32_t *, uint32_t *, uint32_t *);
  282 static void NdisMIndicateStatusComplete(ndis_handle);
  283 static void NdisMIndicateStatus(ndis_handle, ndis_status,
  284         void *, uint32_t);
  285 static uint8_t ndis_intr(kinterrupt *, void *);
  286 static void ndis_intrhand(kdpc *, ndis_miniport_interrupt *, void *, void *);
  287 static funcptr ndis_findwrap(funcptr);
  288 static void NdisCopyFromPacketToPacket(ndis_packet *,
  289         uint32_t, uint32_t, ndis_packet *, uint32_t, uint32_t *);
  290 static void NdisCopyFromPacketToPacketSafe(ndis_packet *,
  291         uint32_t, uint32_t, ndis_packet *, uint32_t, uint32_t *, uint32_t);
  292 static void NdisIMCopySendPerPacketInfo(ndis_packet *, ndis_packet *);
  293 static ndis_status NdisMRegisterDevice(ndis_handle,
  294         unicode_string *, unicode_string *, driver_dispatch **,
  295         void **, ndis_handle *);
  296 static ndis_status NdisMDeregisterDevice(ndis_handle);
  297 static ndis_status
  298         NdisMQueryAdapterInstanceName(unicode_string *, ndis_handle);
  299 static void NdisMRegisterUnloadHandler(ndis_handle, void *);
  300 static void dummy(void);
  301 
  302 /*
  303  * Some really old drivers do not properly check the return value
  304  * from NdisAllocatePacket() and NdisAllocateBuffer() and will
  305  * sometimes allocate few more buffers/packets that they originally
  306  * requested when they created the pool. To prevent this from being
  307  * a problem, we allocate a few extra buffers/packets beyond what
  308  * the driver asks for. This #define controls how many.
  309  */
  310 #define NDIS_POOL_EXTRA         16
  311 
  312 int
  313 ndis_libinit(void)
  314 {
  315         image_patch_table       *patch;
  316 
  317         strcpy(ndis_filepath, "/compat/ndis");
  318 
  319         patch = ndis_functbl;
  320         while (patch->ipt_func != NULL) {
  321                 windrv_wrap((funcptr)patch->ipt_func,
  322                     (funcptr *)&patch->ipt_wrap,
  323                     patch->ipt_argcnt, patch->ipt_ftype);
  324                 patch++;
  325         }
  326 
  327         return (0);
  328 }
  329 
  330 int
  331 ndis_libfini(void)
  332 {
  333         image_patch_table       *patch;
  334 
  335         patch = ndis_functbl;
  336         while (patch->ipt_func != NULL) {
  337                 windrv_unwrap(patch->ipt_wrap);
  338                 patch++;
  339         }
  340 
  341         return (0);
  342 }
  343 
  344 static funcptr
  345 ndis_findwrap(funcptr func)
  346 {
  347         image_patch_table       *patch;
  348 
  349         patch = ndis_functbl;
  350         while (patch->ipt_func != NULL) {
  351                 if ((funcptr)patch->ipt_func == func)
  352                         return((funcptr)patch->ipt_wrap);
  353                 patch++;
  354         }
  355 
  356         return (NULL);
  357 }
  358 
  359 /*
  360  * This routine does the messy Windows Driver Model device attachment
  361  * stuff on behalf of NDIS drivers. We register our own AddDevice
  362  * routine here
  363  */
  364 static void
  365 NdisInitializeWrapper(ndis_handle *wrapper, driver_object *drv, void *path,
  366     void *unused)
  367 {
  368         /*
  369          * As of yet, I haven't come up with a compelling
  370          * reason to define a private NDIS wrapper structure,
  371          * so we use a pointer to the driver object as the
  372          * wrapper handle. The driver object has the miniport
  373          * characteristics struct for this driver hung off it
  374          * via IoAllocateDriverObjectExtension(), and that's
  375          * really all the private data we need.
  376          */
  377 
  378         *wrapper = drv;
  379 
  380         /*
  381          * If this was really Windows, we'd be registering dispatch
  382          * routines for the NDIS miniport module here, but we're
  383          * not Windows so all we really need to do is set up an
  384          * AddDevice function that'll be invoked when a new device
  385          * instance appears.
  386          */
  387 
  388         drv->dro_driverext->dre_adddevicefunc = NdisAddDevice;
  389 }
  390 
  391 static void
  392 NdisTerminateWrapper(ndis_handle handle, void *syspec)
  393 {
  394         /* Nothing to see here, move along. */
  395 }
  396 
  397 static ndis_status
  398 NdisMRegisterMiniport(ndis_handle handle,
  399     ndis_miniport_characteristics *characteristics, int len)
  400 {
  401         ndis_miniport_characteristics   *ch = NULL;
  402         driver_object           *drv;
  403 
  404         drv = (driver_object *)handle;
  405 
  406         /*
  407          * We need to save the NDIS miniport characteristics
  408          * somewhere. This data is per-driver, not per-device
  409          * (all devices handled by the same driver have the
  410          * same characteristics) so we hook it onto the driver
  411          * object using IoAllocateDriverObjectExtension().
  412          * The extra extension info is automagically deleted when
  413          * the driver is unloaded (see windrv_unload()).
  414          */
  415 
  416         if (IoAllocateDriverObjectExtension(drv, (void *)1,
  417             sizeof(ndis_miniport_characteristics), (void **)&ch) !=
  418             STATUS_SUCCESS) {
  419                 return (NDIS_STATUS_RESOURCES);
  420         }
  421 
  422         bzero((char *)ch, sizeof(ndis_miniport_characteristics));
  423 
  424         bcopy((char *)characteristics, (char *)ch, len);
  425 
  426         if (ch->nmc_version_major < 5 || ch->nmc_version_minor < 1) {
  427                 ch->nmc_shutdown_handler = NULL;
  428                 ch->nmc_canceltxpkts_handler = NULL;
  429                 ch->nmc_pnpevent_handler = NULL;
  430         }
  431 
  432         return (NDIS_STATUS_SUCCESS);
  433 }
  434 
  435 static ndis_status
  436 NdisAllocateMemoryWithTag(void **vaddr, uint32_t len, uint32_t tag)
  437 {
  438         void                    *mem;
  439 
  440         mem = ExAllocatePoolWithTag(NonPagedPool, len, tag);
  441         if (mem == NULL) {
  442                 return (NDIS_STATUS_RESOURCES);
  443         }
  444         *vaddr = mem;
  445 
  446         return (NDIS_STATUS_SUCCESS);
  447 }
  448 
  449 static ndis_status
  450 NdisAllocateMemory(void **vaddr, uint32_t len, uint32_t flags,
  451     ndis_physaddr highaddr)
  452 {
  453         void                    *mem;
  454 
  455         mem = ExAllocatePoolWithTag(NonPagedPool, len, 0);
  456         if (mem == NULL)
  457                 return (NDIS_STATUS_RESOURCES);
  458         *vaddr = mem;
  459 
  460         return (NDIS_STATUS_SUCCESS);
  461 }
  462 
  463 static void
  464 NdisFreeMemory(void *vaddr, uint32_t len, uint32_t flags)
  465 {
  466         if (len == 0)
  467                 return;
  468 
  469         ExFreePool(vaddr);
  470 }
  471 
  472 static ndis_status
  473 NdisMSetAttributesEx(ndis_handle adapter_handle, ndis_handle adapter_ctx,
  474     uint32_t hangsecs, uint32_t flags, ndis_interface_type iftype)
  475 {
  476         ndis_miniport_block             *block;
  477 
  478         /*
  479          * Save the adapter context, we need it for calling
  480          * the driver's internal functions.
  481          */
  482         block = (ndis_miniport_block *)adapter_handle;
  483         block->nmb_miniportadapterctx = adapter_ctx;
  484         block->nmb_checkforhangsecs = hangsecs;
  485         block->nmb_flags = flags;
  486 
  487         return (NDIS_STATUS_SUCCESS);
  488 }
  489 
  490 static void
  491 NdisOpenConfiguration(ndis_status *status, ndis_handle *cfg,
  492     ndis_handle wrapctx)
  493 {
  494         *cfg = wrapctx;
  495         *status = NDIS_STATUS_SUCCESS;
  496 }
  497 
  498 static void
  499 NdisOpenConfigurationKeyByName(ndis_status *status, ndis_handle cfg,
  500     unicode_string *subkey, ndis_handle *subhandle)
  501 {
  502         *subhandle = cfg;
  503         *status = NDIS_STATUS_SUCCESS;
  504 }
  505 
  506 static void
  507 NdisOpenConfigurationKeyByIndex(ndis_status *status, ndis_handle cfg,
  508     uint32_t idx, unicode_string *subkey, ndis_handle *subhandle)
  509 {
  510         *status = NDIS_STATUS_FAILURE;
  511 }
  512 
  513 static ndis_status
  514 ndis_encode_parm(ndis_miniport_block *block, struct sysctl_oid *oid,
  515     ndis_parm_type type, ndis_config_parm **parm)
  516 {
  517         ndis_config_parm        *p;
  518         ndis_parmlist_entry     *np;
  519         unicode_string          *us;
  520         ansi_string             as;
  521         int                     base = 0;
  522         uint32_t                val;
  523         char                    tmp[32];
  524 
  525         np = ExAllocatePoolWithTag(NonPagedPool,
  526             sizeof(ndis_parmlist_entry), 0);
  527         if (np == NULL)
  528                 return (NDIS_STATUS_RESOURCES);
  529         InsertHeadList((&block->nmb_parmlist), (&np->np_list));
  530         *parm = p = &np->np_parm;
  531 
  532         switch(type) {
  533         case ndis_parm_string:
  534                 /* See if this might be a number. */
  535                 val = strtoul((char *)oid->oid_arg1, NULL, 10);
  536                 us = &p->ncp_parmdata.ncp_stringdata;
  537                 p->ncp_type = ndis_parm_string;
  538                 if (val) {
  539                         ksnprintf(tmp, 32, "%x", val);
  540                         RtlInitAnsiString(&as, tmp);
  541                 } else {
  542                         RtlInitAnsiString(&as, (char *)oid->oid_arg1);
  543                 }
  544 
  545                 if (RtlAnsiStringToUnicodeString(us, &as, TRUE)) {
  546                         ExFreePool(np);
  547                         return (NDIS_STATUS_RESOURCES);
  548                 }
  549                 break;
  550         case ndis_parm_int:
  551                 if (strncmp((char *)oid->oid_arg1, "0x", 2) == 0)
  552                         base = 16;
  553                 else
  554                         base = 10;
  555                 p->ncp_type = ndis_parm_int;
  556                 p->ncp_parmdata.ncp_intdata =
  557                     strtol((char *)oid->oid_arg1, NULL, base);
  558                 break;
  559         case ndis_parm_hexint:
  560 #ifdef notdef
  561                 if (strncmp((char *)oid->oid_arg1, "0x", 2) == 0)
  562                         base = 16;
  563                 else
  564                         base = 10;
  565 #endif
  566                 base = 16;
  567                 p->ncp_type = ndis_parm_hexint;
  568                 p->ncp_parmdata.ncp_intdata =
  569                     strtoul((char *)oid->oid_arg1, NULL, base);
  570                 break;
  571         default:
  572                 return (NDIS_STATUS_FAILURE);
  573                 break;
  574         }
  575 
  576         return (NDIS_STATUS_SUCCESS);
  577 }
  578 
  579 static void
  580 NdisReadConfiguration(ndis_status *status, ndis_config_parm **parm,
  581     ndis_handle cfg, unicode_string *key, ndis_parm_type type)
  582 {
  583         char                    *keystr = NULL;
  584         ndis_miniport_block     *block;
  585         struct ndis_softc       *sc;
  586         struct sysctl_oid       *oidp;
  587         struct sysctl_ctx_entry *e;
  588         ansi_string             as;
  589 
  590         block = (ndis_miniport_block *)cfg;
  591         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
  592 
  593         if (key->us_len == 0 || key->us_buf == NULL) {
  594                 *status = NDIS_STATUS_FAILURE;
  595                 return;
  596         }
  597 
  598         if (RtlUnicodeStringToAnsiString(&as, key, TRUE)) {
  599                 *status = NDIS_STATUS_RESOURCES;
  600                 return;
  601         }
  602 
  603         keystr = as.as_buf;
  604 
  605         /*
  606          * See if registry key is already in a list of known keys
  607          * included with the driver.
  608          */
  609         TAILQ_FOREACH(e, &sc->ndis_ctx, link) {
  610                 oidp = e->entry;
  611                 if (strcasecmp(oidp->oid_name, keystr) == 0) {
  612                         if (strcmp((char *)oidp->oid_arg1, "UNSET") == 0) {
  613                                 RtlFreeAnsiString(&as);
  614                                 *status = NDIS_STATUS_FAILURE;
  615                                 return;
  616                         }
  617 
  618                         *status = ndis_encode_parm(block, oidp, type, parm);
  619                         RtlFreeAnsiString(&as);
  620                         return;
  621                 }
  622         }
  623 
  624         /*
  625          * If the key didn't match, add it to the list of dynamically
  626          * created ones. Sometimes, drivers refer to registry keys
  627          * that aren't documented in their .INF files. These keys
  628          * are supposed to be created by some sort of utility or
  629          * control panel snap-in that comes with the driver software.
  630          * Sometimes it's useful to be able to manipulate these.
  631          * If the driver requests the key in the form of a string,
  632          * make its default value an empty string, otherwise default
  633          * it to "".
  634          */
  635 
  636         if (type == ndis_parm_int || type == ndis_parm_hexint)
  637                 ndis_add_sysctl(sc, keystr, "(dynamic integer key)",
  638                     "UNSET", CTLFLAG_RW);
  639         else
  640                 ndis_add_sysctl(sc, keystr, "(dynamic string key)",
  641                     "UNSET", CTLFLAG_RW);
  642 
  643         RtlFreeAnsiString(&as);
  644         *status = NDIS_STATUS_FAILURE;
  645 }
  646 
  647 static ndis_status
  648 ndis_decode_parm(ndis_miniport_block *block, ndis_config_parm *parm, char *val)
  649 {
  650         unicode_string          *ustr;
  651         ansi_string             as;
  652 
  653         switch(parm->ncp_type) {
  654         case ndis_parm_string:
  655                 ustr = &parm->ncp_parmdata.ncp_stringdata;
  656                 if (RtlUnicodeStringToAnsiString(&as, ustr, TRUE))
  657                         return (NDIS_STATUS_RESOURCES);
  658                 bcopy(as.as_buf, val, as.as_len);
  659                 RtlFreeAnsiString(&as);
  660                 break;
  661         case ndis_parm_int:
  662                 ksprintf(val, "%d", parm->ncp_parmdata.ncp_intdata);
  663                 break;
  664         case ndis_parm_hexint:
  665                 ksprintf(val, "%xu", parm->ncp_parmdata.ncp_intdata);
  666                 break;
  667         default:
  668                 return (NDIS_STATUS_FAILURE);
  669                 break;
  670         }
  671         return (NDIS_STATUS_SUCCESS);
  672 }
  673 
  674 static void
  675 NdisWriteConfiguration(ndis_status *status, ndis_handle cfg,
  676     unicode_string *key, ndis_config_parm *parm)
  677 {
  678         ansi_string             as;
  679         char                    *keystr = NULL;
  680         ndis_miniport_block     *block;
  681         struct ndis_softc       *sc;
  682         struct sysctl_oid       *oidp;
  683         struct sysctl_ctx_entry *e;
  684         char                    val[256];
  685 
  686         block = (ndis_miniport_block *)cfg;
  687         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
  688 
  689         if (RtlUnicodeStringToAnsiString(&as, key, TRUE)) {
  690                 *status = NDIS_STATUS_RESOURCES;
  691                 return;
  692         }
  693 
  694         keystr = as.as_buf;
  695 
  696         /* Decode the parameter into a string. */
  697         bzero(val, sizeof(val));
  698         *status = ndis_decode_parm(block, parm, val);
  699         if (*status != NDIS_STATUS_SUCCESS) {
  700                 RtlFreeAnsiString(&as);
  701                 return;
  702         }
  703 
  704         /* See if the key already exists. */
  705 
  706         TAILQ_FOREACH(e, &sc->ndis_ctx, link) {
  707                 oidp = e->entry;
  708                 if (strcasecmp(oidp->oid_name, keystr) == 0) {
  709                         /* Found it, set the value. */
  710                         strcpy((char *)oidp->oid_arg1, val);
  711                         RtlFreeAnsiString(&as);
  712                         return;
  713                 }
  714         }
  715 
  716         /* Not found, add a new key with the specified value. */
  717         ndis_add_sysctl(sc, keystr, "(dynamically set key)",
  718                     val, CTLFLAG_RW);
  719 
  720         RtlFreeAnsiString(&as);
  721         *status = NDIS_STATUS_SUCCESS;
  722 }
  723 
  724 static void
  725 NdisCloseConfiguration(ndis_handle cfg)
  726 {
  727         list_entry              *e;
  728         ndis_parmlist_entry     *pe;
  729         ndis_miniport_block     *block;
  730         ndis_config_parm        *p;
  731 
  732         block = (ndis_miniport_block *)cfg;
  733 
  734         while (!IsListEmpty(&block->nmb_parmlist)) {
  735                 e = RemoveHeadList(&block->nmb_parmlist);
  736                 pe = CONTAINING_RECORD(e, ndis_parmlist_entry, np_list);
  737                 p = &pe->np_parm;
  738                 if (p->ncp_type == ndis_parm_string)
  739                         RtlFreeUnicodeString(&p->ncp_parmdata.ncp_stringdata);
  740                 ExFreePool(e);
  741         }
  742 }
  743 
  744 /*
  745  * Initialize a Windows spinlock.
  746  */
  747 static void
  748 NdisAllocateSpinLock(ndis_spin_lock *lock)
  749 {
  750         KeInitializeSpinLock(&lock->nsl_spinlock);
  751         lock->nsl_kirql = 0;
  752 }
  753 
  754 /*
  755  * Destroy a Windows spinlock. This is a no-op for now. There are two reasons
  756  * for this. One is that it's sort of superfluous: we don't have to do anything
  757  * special to deallocate the spinlock. The other is that there are some buggy
  758  * drivers which call NdisFreeSpinLock() _after_ calling NdisFreeMemory() on
  759  * the block of memory in which the spinlock resides. (Yes, ADMtek, I'm
  760  * talking to you.)
  761  */
  762 static void
  763 NdisFreeSpinLock(ndis_spin_lock *lock)
  764 {
  765 #ifdef notdef
  766         KeInitializeSpinLock(&lock->nsl_spinlock);
  767         lock->nsl_kirql = 0;
  768 #endif
  769 }
  770 
  771 /*
  772  * Acquire a spinlock from IRQL <= DISPATCH_LEVEL.
  773  */
  774 
  775 static void
  776 NdisAcquireSpinLock(ndis_spin_lock *lock)
  777 {
  778         KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
  779 }
  780 
  781 /*
  782  * Release a spinlock from IRQL == DISPATCH_LEVEL.
  783  */
  784 
  785 static void
  786 NdisReleaseSpinLock(ndis_spin_lock *lock)
  787 {
  788         KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
  789 }
  790 
  791 /*
  792  * Acquire a spinlock when already running at IRQL == DISPATCH_LEVEL.
  793  */
  794 static void
  795 NdisDprAcquireSpinLock(ndis_spin_lock *lock)
  796 {
  797         KeAcquireSpinLockAtDpcLevel(&lock->nsl_spinlock);
  798 }
  799 
  800 /*
  801  * Release a spinlock without leaving IRQL == DISPATCH_LEVEL.
  802  */
  803 static void
  804 NdisDprReleaseSpinLock(ndis_spin_lock *lock)
  805 {
  806         KeReleaseSpinLockFromDpcLevel(&lock->nsl_spinlock);
  807 }
  808 
  809 static void
  810 NdisInitializeReadWriteLock(ndis_rw_lock *lock)
  811 {
  812         KeInitializeSpinLock(&lock->nrl_spinlock);
  813         bzero((char *)&lock->nrl_rsvd, sizeof(lock->nrl_rsvd));
  814 }
  815 
  816 static void
  817 NdisAcquireReadWriteLock(ndis_rw_lock *lock, uint8_t writeacc,
  818     ndis_lock_state *state)
  819 {
  820         if (writeacc == TRUE) {
  821                 KeAcquireSpinLock(&lock->nrl_spinlock, &state->nls_oldirql);
  822                 lock->nrl_rsvd[0]++;
  823         } else
  824                 lock->nrl_rsvd[1]++;
  825 }
  826 
  827 static void
  828 NdisReleaseReadWriteLock(ndis_rw_lock *lock, ndis_lock_state *state)
  829 {
  830         if (lock->nrl_rsvd[0]) {
  831                 lock->nrl_rsvd[0]--;
  832                 KeReleaseSpinLock(&lock->nrl_spinlock, state->nls_oldirql);
  833         } else
  834                 lock->nrl_rsvd[1]--;
  835 }
  836 
  837 static uint32_t
  838 NdisReadPciSlotInformation(ndis_handle adapter, uint32_t slot, uint32_t offset,
  839     void *buf, uint32_t len)
  840 {
  841         ndis_miniport_block     *block;
  842         int                     i;
  843         char                    *dest;
  844         device_t                dev;
  845 
  846         block = (ndis_miniport_block *)adapter;
  847         dest = buf;
  848         if (block == NULL)
  849                 return (0);
  850 
  851         dev = block->nmb_physdeviceobj->do_devext;
  852 
  853         /*
  854          * I have a test system consisting of a Sun w2100z
  855          * dual 2.4Ghz Opteron machine and an Atheros 802.11a/b/g
  856          * "Aries" miniPCI NIC. (The NIC is installed in the
  857          * machine using a miniPCI to PCI bus adapter card.)
  858          * When running in SMP mode, I found that
  859          * performing a large number of consecutive calls to
  860          * NdisReadPciSlotInformation() would result in a
  861          * sudden system reset (or in some cases a freeze).
  862          * My suspicion is that the multiple reads are somehow
  863          * triggering a fatal PCI bus error that leads to a
  864          * machine check. The 1us delay in the loop below
  865          * seems to prevent this problem.
  866          */
  867 
  868         for (i = 0; i < len; i++) {
  869                 DELAY(1);
  870                 dest[i] = pci_read_config(dev, i + offset, 1);
  871         }
  872 
  873         return (len);
  874 }
  875 
  876 static uint32_t
  877 NdisWritePciSlotInformation(ndis_handle adapter, uint32_t slot,
  878     uint32_t offset, void *buf, uint32_t len)
  879 {
  880         ndis_miniport_block     *block;
  881         int                     i;
  882         char                    *dest;
  883         device_t                dev;
  884 
  885         block = (ndis_miniport_block *)adapter;
  886         dest = buf;
  887 
  888         if (block == NULL)
  889                 return (0);
  890 
  891         dev = block->nmb_physdeviceobj->do_devext;
  892         for (i = 0; i < len; i++) {
  893                 DELAY(1);
  894                 pci_write_config(dev, i + offset, dest[i], 1);
  895         }
  896 
  897         return (len);
  898 }
  899 
  900 /*
  901  * The errorlog routine uses a variable argument list, so we
  902  * have to declare it this way.
  903  */
  904 
  905 #define ERRMSGLEN 512
  906 static void
  907 NdisWriteErrorLogEntry(ndis_handle adapter, ndis_error_code code,
  908         uint32_t numerrors, ...)
  909 {
  910         ndis_miniport_block     *block;
  911         va_list                 ap;
  912         int                     i, error;
  913         char                    *str = NULL;
  914         uint16_t                flags;
  915         device_t                dev;
  916         driver_object           *drv;
  917         struct ndis_softc       *sc;
  918         struct ifnet            *ifp;
  919         unicode_string          us;
  920         ansi_string             as = { 0, 0, NULL };
  921 
  922         block = (ndis_miniport_block *)adapter;
  923         dev = block->nmb_physdeviceobj->do_devext;
  924         drv = block->nmb_deviceobj->do_drvobj;
  925         sc = device_get_softc(dev);
  926         ifp = sc->ifp;
  927 
  928         if (ifp != NULL && ifp->if_flags & IFF_DEBUG) {
  929                 error = pe_get_message((vm_offset_t)drv->dro_driverstart,
  930                     code, &str, &i, &flags);
  931                 if (error == 0) {
  932                         if (flags & MESSAGE_RESOURCE_UNICODE) {
  933                                 RtlInitUnicodeString(&us, (uint16_t *)str);
  934                                 if (RtlUnicodeStringToAnsiString(&as,
  935                                     &us, TRUE) == STATUS_SUCCESS)
  936                                         str = as.as_buf;
  937                                 else
  938                                         str = NULL;
  939                         }
  940                 }
  941         }
  942 
  943         device_printf(dev, "NDIS ERROR: %x (%s)\n", code,
  944             str == NULL ? "unknown error" : str);
  945 
  946         if (ifp != NULL && ifp->if_flags & IFF_DEBUG) {
  947                 device_printf(dev, "NDIS NUMERRORS: %x\n", numerrors);
  948                 va_start(ap, numerrors);
  949                 for (i = 0; i < numerrors; i++)
  950                         device_printf(dev, "argptr: %p\n",
  951                             va_arg(ap, void *));
  952                 va_end(ap);
  953         }
  954 
  955         if (as.as_len)
  956                 RtlFreeAnsiString(&as);
  957 }
  958 
  959 static void
  960 ndis_map_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
  961 {
  962         struct ndis_map_arg     *ctx;
  963         int                     i;
  964 
  965         if (error)
  966                 return;
  967 
  968         ctx = arg;
  969 
  970         for (i = 0; i < nseg; i++) {
  971                 ctx->nma_fraglist[i].npu_physaddr.np_quad = segs[i].ds_addr;
  972                 ctx->nma_fraglist[i].npu_len = segs[i].ds_len;
  973         }
  974 
  975         ctx->nma_cnt = nseg;
  976 }
  977 
  978 static void
  979 NdisMStartBufferPhysicalMapping(ndis_handle adapter, ndis_buffer *buf,
  980     uint32_t mapreg, uint8_t writedev, ndis_paddr_unit *addrarray,
  981     uint32_t *arraysize)
  982 {
  983         ndis_miniport_block     *block;
  984         struct ndis_softc       *sc;
  985         struct ndis_map_arg     nma;
  986         bus_dmamap_t            map;
  987         int                     error;
  988 
  989         if (adapter == NULL)
  990                 return;
  991 
  992         block = (ndis_miniport_block *)adapter;
  993         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
  994 
  995         if (mapreg > sc->ndis_mmapcnt)
  996                 return;
  997 
  998         map = sc->ndis_mmaps[mapreg];
  999         nma.nma_fraglist = addrarray;
 1000 
 1001         error = bus_dmamap_load(sc->ndis_mtag, map,
 1002             MmGetMdlVirtualAddress(buf), MmGetMdlByteCount(buf), ndis_map_cb,
 1003             (void *)&nma, BUS_DMA_NOWAIT);
 1004 
 1005         if (error)
 1006                 return;
 1007 
 1008         bus_dmamap_sync(sc->ndis_mtag, map,
 1009             writedev ? BUS_DMASYNC_PREWRITE : BUS_DMASYNC_PREREAD);
 1010 
 1011         *arraysize = nma.nma_cnt;
 1012 }
 1013 
 1014 static void
 1015 NdisMCompleteBufferPhysicalMapping(ndis_handle adapter, ndis_buffer *buf,
 1016     uint32_t mapreg)
 1017 {
 1018         ndis_miniport_block     *block;
 1019         struct ndis_softc       *sc;
 1020         bus_dmamap_t            map;
 1021 
 1022         if (adapter == NULL)
 1023                 return;
 1024 
 1025         block = (ndis_miniport_block *)adapter;
 1026         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 1027 
 1028         if (mapreg > sc->ndis_mmapcnt)
 1029                 return;
 1030 
 1031         map = sc->ndis_mmaps[mapreg];
 1032 
 1033         bus_dmamap_sync(sc->ndis_mtag, map,
 1034             BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
 1035 
 1036         bus_dmamap_unload(sc->ndis_mtag, map);
 1037 }
 1038 
 1039 /*
 1040  * This is an older (?) timer init routine which doesn't
 1041  * accept a miniport context handle. Serialized miniports should
 1042  * never call this function.
 1043  */
 1044 
 1045 static void
 1046 NdisInitializeTimer(ndis_timer *timer, ndis_timer_function func, void *ctx)
 1047 {
 1048         KeInitializeTimer(&timer->nt_ktimer);
 1049         KeInitializeDpc(&timer->nt_kdpc, func, ctx);
 1050         KeSetImportanceDpc(&timer->nt_kdpc, KDPC_IMPORTANCE_LOW);
 1051 }
 1052 
 1053 static void
 1054 ndis_timercall(kdpc *dpc, ndis_miniport_timer *timer, void *sysarg1,
 1055     void *sysarg2)
 1056 {
 1057         /*
 1058          * Since we're called as a DPC, we should be running
 1059          * at DISPATCH_LEVEL here. This means to acquire the
 1060          * spinlock, we can use KeAcquireSpinLockAtDpcLevel()
 1061          * rather than KeAcquireSpinLock().
 1062          */
 1063         if (NDIS_SERIALIZED(timer->nmt_block))
 1064                 KeAcquireSpinLockAtDpcLevel(&timer->nmt_block->nmb_lock);
 1065 
 1066         MSCALL4(timer->nmt_timerfunc, dpc, timer->nmt_timerctx,
 1067             sysarg1, sysarg2);
 1068 
 1069         if (NDIS_SERIALIZED(timer->nmt_block))
 1070                 KeReleaseSpinLockFromDpcLevel(&timer->nmt_block->nmb_lock);
 1071 }
 1072 
 1073 /*
 1074  * For a long time I wondered why there were two NDIS timer initialization
 1075  * routines, and why this one needed an NDIS_MINIPORT_TIMER and the
 1076  * MiniportAdapterHandle. The NDIS_MINIPORT_TIMER has its own callout
 1077  * function and context pointers separate from those in the DPC, which
 1078  * allows for another level of indirection: when the timer fires, we
 1079  * can have our own timer function invoked, and from there we can call
 1080  * the driver's function. But why go to all that trouble? Then it hit
 1081  * me: for serialized miniports, the timer callouts are not re-entrant.
 1082  * By trapping the callouts and having access to the MiniportAdapterHandle,
 1083  * we can protect the driver callouts by acquiring the NDIS serialization
 1084  * lock. This is essential for allowing serialized miniports to work
 1085  * correctly on SMP systems. On UP hosts, setting IRQL to DISPATCH_LEVEL
 1086  * is enough to prevent other threads from pre-empting you, but with
 1087  * SMP, you must acquire a lock as well, otherwise the other CPU is
 1088  * free to clobber you.
 1089  */
 1090 static void
 1091 NdisMInitializeTimer(ndis_miniport_timer *timer, ndis_handle handle,
 1092     ndis_timer_function func, void *ctx)
 1093 {
 1094         /* Save the driver's funcptr and context */
 1095 
 1096         timer->nmt_timerfunc = func;
 1097         timer->nmt_timerctx = ctx;
 1098         timer->nmt_block = handle;
 1099 
 1100         /*
 1101          * Set up the timer so it will call our intermediate DPC.
 1102          * Be sure to use the wrapped entry point, since
 1103          * ntoskrnl_run_dpc() expects to invoke a function with
 1104          * Microsoft calling conventions.
 1105          */
 1106         KeInitializeTimer(&timer->nmt_ktimer);
 1107         KeInitializeDpc(&timer->nmt_kdpc,
 1108             ndis_findwrap((funcptr)ndis_timercall), timer);
 1109         timer->nmt_ktimer.k_dpc = &timer->nmt_kdpc;
 1110 }
 1111 
 1112 /*
 1113  * In Windows, there's both an NdisMSetTimer() and an NdisSetTimer(),
 1114  * but the former is just a macro wrapper around the latter.
 1115  */
 1116 static void
 1117 NdisSetTimer(ndis_timer *timer, uint32_t msecs)
 1118 {
 1119         /*
 1120          * KeSetTimer() wants the period in
 1121          * hundred nanosecond intervals.
 1122          */
 1123         KeSetTimer(&timer->nt_ktimer,
 1124             ((int64_t)msecs * -10000), &timer->nt_kdpc);
 1125 }
 1126 
 1127 static void
 1128 NdisMSetPeriodicTimer(ndis_miniport_timer *timer, uint32_t msecs)
 1129 {
 1130         KeSetTimerEx(&timer->nmt_ktimer,
 1131             ((int64_t)msecs * -10000), msecs, &timer->nmt_kdpc);
 1132 }
 1133 
 1134 /*
 1135  * Technically, this is really NdisCancelTimer(), but we also
 1136  * (ab)use it for NdisMCancelTimer(), since in our implementation
 1137  * we don't need the extra info in the ndis_miniport_timer
 1138  * structure just to cancel a timer.
 1139  */
 1140 
 1141 static void
 1142 NdisMCancelTimer(ndis_timer *timer, uint8_t *cancelled)
 1143 {
 1144 
 1145         *cancelled = KeCancelTimer(&timer->nt_ktimer);
 1146 }
 1147 
 1148 static void
 1149 NdisMQueryAdapterResources(ndis_status *status, ndis_handle adapter,
 1150     ndis_resource_list *list, uint32_t *buflen)
 1151 {
 1152         ndis_miniport_block     *block;
 1153         struct ndis_softc       *sc;
 1154         int                     rsclen;
 1155 
 1156         block = (ndis_miniport_block *)adapter;
 1157         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 1158 
 1159         rsclen = sizeof(ndis_resource_list) +
 1160             (sizeof(cm_partial_resource_desc) * (sc->ndis_rescnt - 1));
 1161         if (*buflen < rsclen) {
 1162                 *buflen = rsclen;
 1163                 *status = NDIS_STATUS_INVALID_LENGTH;
 1164                 return;
 1165         }
 1166 
 1167         bcopy((char *)block->nmb_rlist, (char *)list, rsclen);
 1168         *status = NDIS_STATUS_SUCCESS;
 1169 }
 1170 
 1171 static ndis_status
 1172 NdisMRegisterIoPortRange(void **offset, ndis_handle adapter, uint32_t port,
 1173     uint32_t numports)
 1174 {
 1175         struct ndis_miniport_block      *block;
 1176         struct ndis_softc       *sc;
 1177 
 1178         if (adapter == NULL)
 1179                 return (NDIS_STATUS_FAILURE);
 1180 
 1181         block = (ndis_miniport_block *)adapter;
 1182         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 1183 
 1184         if (sc->ndis_res_io == NULL)
 1185                 return (NDIS_STATUS_FAILURE);
 1186 
 1187         /* Don't let the device map more ports than we have. */
 1188         if (rman_get_size(sc->ndis_res_io) < numports)
 1189                 return (NDIS_STATUS_INVALID_LENGTH);
 1190 
 1191         *offset = (void *)rman_get_start(sc->ndis_res_io);
 1192 
 1193         return (NDIS_STATUS_SUCCESS);
 1194 }
 1195 
 1196 static void
 1197 NdisMDeregisterIoPortRange(ndis_handle adapter, uint32_t port,
 1198     uint32_t numports, void *offset)
 1199 {
 1200 }
 1201 
 1202 static void
 1203 NdisReadNetworkAddress(ndis_status *status, void **addr, uint32_t *addrlen,
 1204     ndis_handle adapter)
 1205 {
 1206         struct ndis_softc       *sc;
 1207         ndis_miniport_block     *block;
 1208         uint8_t                 empty[] = { 0, 0, 0, 0, 0, 0 };
 1209 
 1210         block = (ndis_miniport_block *)adapter;
 1211         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 1212         if (sc->ifp == NULL) {
 1213                 *status = NDIS_STATUS_FAILURE;
 1214                 return;
 1215         }
 1216 
 1217         if (sc->ifp->if_lladdr == NULL ||
 1218             bcmp(IF_LLADDR(sc->ifp), empty, ETHER_ADDR_LEN) == 0)
 1219                 *status = NDIS_STATUS_FAILURE;
 1220         else {
 1221                 *addr = IF_LLADDR(sc->ifp);
 1222                 *addrlen = ETHER_ADDR_LEN;
 1223                 *status = NDIS_STATUS_SUCCESS;
 1224         }
 1225 }
 1226 
 1227 static ndis_status
 1228 NdisQueryMapRegisterCount(uint32_t bustype, uint32_t *cnt)
 1229 {
 1230         *cnt = 8192;
 1231         return (NDIS_STATUS_SUCCESS);
 1232 }
 1233 
 1234 static ndis_status
 1235 NdisMAllocateMapRegisters(ndis_handle adapter, uint32_t dmachannel,
 1236     uint8_t dmasize, uint32_t physmapneeded, uint32_t maxmap)
 1237 {
 1238         struct ndis_softc       *sc;
 1239         ndis_miniport_block     *block;
 1240         int                     error, i, nseg = NDIS_MAXSEG;
 1241 
 1242         block = (ndis_miniport_block *)adapter;
 1243         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 1244 
 1245         sc->ndis_mmaps = kmalloc(sizeof(bus_dmamap_t) * physmapneeded,
 1246             M_DEVBUF, M_NOWAIT|M_ZERO);
 1247 
 1248         if (sc->ndis_mmaps == NULL)
 1249                 return (NDIS_STATUS_RESOURCES);
 1250 
 1251         error = bus_dma_tag_create(sc->ndis_parent_tag, ETHER_ALIGN, 0,
 1252             BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL,
 1253             NULL, maxmap * nseg, nseg, maxmap, BUS_DMA_ALLOCNOW,
 1254             &sc->ndis_mtag);
 1255 
 1256         if (error) {
 1257                 kfree(sc->ndis_mmaps, M_DEVBUF);
 1258                 return (NDIS_STATUS_RESOURCES);
 1259         }
 1260 
 1261         for (i = 0; i < physmapneeded; i++)
 1262                 bus_dmamap_create(sc->ndis_mtag, 0, &sc->ndis_mmaps[i]);
 1263 
 1264         sc->ndis_mmapcnt = physmapneeded;
 1265 
 1266         return (NDIS_STATUS_SUCCESS);
 1267 }
 1268 
 1269 static void
 1270 NdisMFreeMapRegisters(ndis_handle adapter)
 1271 {
 1272         struct ndis_softc       *sc;
 1273         ndis_miniport_block     *block;
 1274         int                     i;
 1275 
 1276         block = (ndis_miniport_block *)adapter;
 1277         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 1278 
 1279         for (i = 0; i < sc->ndis_mmapcnt; i++)
 1280                 bus_dmamap_destroy(sc->ndis_mtag, sc->ndis_mmaps[i]);
 1281 
 1282         kfree(sc->ndis_mmaps, M_DEVBUF);
 1283 
 1284         bus_dma_tag_destroy(sc->ndis_mtag);
 1285 }
 1286 
 1287 static void
 1288 ndis_mapshared_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
 1289 {
 1290         ndis_physaddr           *p;
 1291 
 1292         if (error || nseg > 1)
 1293                 return;
 1294 
 1295         p = arg;
 1296 
 1297         p->np_quad = segs[0].ds_addr;
 1298 }
 1299 
 1300 /*
 1301  * This maps to bus_dmamem_alloc().
 1302  */
 1303 
 1304 static void
 1305 NdisMAllocateSharedMemory(ndis_handle adapter, uint32_t len, uint8_t cached,
 1306     void **vaddr, ndis_physaddr *paddr)
 1307 {
 1308         ndis_miniport_block     *block;
 1309         struct ndis_softc       *sc;
 1310         struct ndis_shmem       *sh;
 1311         int                     error;
 1312 
 1313         if (adapter == NULL)
 1314                 return;
 1315 
 1316         block = (ndis_miniport_block *)adapter;
 1317         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 1318 
 1319         sh = kmalloc(sizeof(struct ndis_shmem), M_DEVBUF, M_NOWAIT|M_ZERO);
 1320         if (sh == NULL)
 1321                 return;
 1322 
 1323         InitializeListHead(&sh->ndis_list);
 1324 
 1325         /*
 1326          * When performing shared memory allocations, create a tag
 1327          * with a lowaddr limit that restricts physical memory mappings
 1328          * so that they all fall within the first 1GB of memory.
 1329          * At least one device/driver combination (Linksys Instant
 1330          * Wireless PCI Card V2.7, Broadcom 802.11b) seems to have
 1331          * problems with performing DMA operations with physical
 1332          * addresses that lie above the 1GB mark. I don't know if this
 1333          * is a hardware limitation or if the addresses are being
 1334          * truncated within the driver, but this seems to be the only
 1335          * way to make these cards work reliably in systems with more
 1336          * than 1GB of physical memory.
 1337          */
 1338 
 1339         error = bus_dma_tag_create(sc->ndis_parent_tag, 64,
 1340             0, NDIS_BUS_SPACE_SHARED_MAXADDR, BUS_SPACE_MAXADDR, NULL,
 1341             NULL, len, 1, len, BUS_DMA_ALLOCNOW, &sh->ndis_stag);
 1342 
 1343         if (error) {
 1344                 kfree(sh, M_DEVBUF);
 1345                 return;
 1346         }
 1347 
 1348         error = bus_dmamem_alloc(sh->ndis_stag, vaddr,
 1349             BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sh->ndis_smap);
 1350 
 1351         if (error) {
 1352                 bus_dma_tag_destroy(sh->ndis_stag);
 1353                 kfree(sh, M_DEVBUF);
 1354                 return;
 1355         }
 1356 
 1357         error = bus_dmamap_load(sh->ndis_stag, sh->ndis_smap, *vaddr,
 1358             len, ndis_mapshared_cb, (void *)paddr, BUS_DMA_NOWAIT);
 1359 
 1360         if (error) {
 1361                 bus_dmamem_free(sh->ndis_stag, *vaddr, sh->ndis_smap);
 1362                 bus_dma_tag_destroy(sh->ndis_stag);
 1363                 kfree(sh, M_DEVBUF);
 1364                 return;
 1365         }
 1366 
 1367         /*
 1368          * Save the physical address along with the source address.
 1369          * The AirGo MIMO driver will call NdisMFreeSharedMemory()
 1370          * with a bogus virtual address sometimes, but with a valid
 1371          * physical address. To keep this from causing trouble, we
 1372          * use the physical address to as a sanity check in case
 1373          * searching based on the virtual address fails.
 1374          */
 1375 
 1376         NDIS_LOCK(sc);
 1377         sh->ndis_paddr.np_quad = paddr->np_quad;
 1378         sh->ndis_saddr = *vaddr;
 1379         InsertHeadList((&sc->ndis_shlist), (&sh->ndis_list));
 1380         NDIS_UNLOCK(sc);
 1381 }
 1382 
 1383 struct ndis_allocwork {
 1384         uint32_t                na_len;
 1385         uint8_t                 na_cached;
 1386         void                    *na_ctx;
 1387         io_workitem             *na_iw;
 1388 };
 1389 
 1390 static void
 1391 ndis_asyncmem_complete(device_object *dobj, void *arg)
 1392 {
 1393         ndis_miniport_block     *block;
 1394         struct ndis_softc       *sc;
 1395         struct ndis_allocwork   *w;
 1396         void                    *vaddr;
 1397         ndis_physaddr           paddr;
 1398         ndis_allocdone_handler  donefunc;
 1399 
 1400         w = arg;
 1401         block = (ndis_miniport_block *)dobj->do_devext;
 1402         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 1403 
 1404         vaddr = NULL;
 1405         paddr.np_quad = 0;
 1406 
 1407         donefunc = sc->ndis_chars->nmc_allocate_complete_func;
 1408         NdisMAllocateSharedMemory(block, w->na_len,
 1409             w->na_cached, &vaddr, &paddr);
 1410         MSCALL5(donefunc, block, vaddr, &paddr, w->na_len, w->na_ctx);
 1411 
 1412         IoFreeWorkItem(w->na_iw);
 1413         kfree(w, M_DEVBUF);
 1414 }
 1415 
 1416 static ndis_status
 1417 NdisMAllocateSharedMemoryAsync(ndis_handle adapter, uint32_t len,
 1418     uint8_t cached, void *ctx)
 1419 {
 1420         ndis_miniport_block     *block;
 1421         struct ndis_allocwork   *w;
 1422         io_workitem             *iw;
 1423         io_workitem_func        ifw;
 1424 
 1425         if (adapter == NULL)
 1426                 return (NDIS_STATUS_FAILURE);
 1427 
 1428         block = adapter;
 1429 
 1430         iw = IoAllocateWorkItem(block->nmb_deviceobj);
 1431         if (iw == NULL)
 1432                 return (NDIS_STATUS_FAILURE);
 1433 
 1434         w = kmalloc(sizeof(struct ndis_allocwork), M_TEMP, M_NOWAIT);
 1435 
 1436         if (w == NULL)
 1437                 return (NDIS_STATUS_FAILURE);
 1438 
 1439         w->na_cached = cached;
 1440         w->na_len = len;
 1441         w->na_ctx = ctx;
 1442         w->na_iw = iw;
 1443 
 1444         ifw = (io_workitem_func)ndis_findwrap((funcptr)ndis_asyncmem_complete);
 1445         IoQueueWorkItem(iw, ifw, WORKQUEUE_DELAYED, w);
 1446 
 1447         return (NDIS_STATUS_PENDING);
 1448 }
 1449 
 1450 static void
 1451 NdisMFreeSharedMemory(ndis_handle adapter, uint32_t len, uint8_t cached,
 1452     void *vaddr, ndis_physaddr paddr)
 1453 {
 1454         ndis_miniport_block     *block;
 1455         struct ndis_softc       *sc;
 1456         struct ndis_shmem       *sh = NULL;
 1457         list_entry              *l;
 1458 
 1459         if (vaddr == NULL || adapter == NULL)
 1460                 return;
 1461 
 1462         block = (ndis_miniport_block *)adapter;
 1463         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 1464 
 1465         /* Sanity check: is list empty? */
 1466 
 1467         if (IsListEmpty(&sc->ndis_shlist))
 1468                 return;
 1469 
 1470         NDIS_LOCK(sc);
 1471         l = sc->ndis_shlist.nle_flink;
 1472         while (l != &sc->ndis_shlist) {
 1473                 sh = CONTAINING_RECORD(l, struct ndis_shmem, ndis_list);
 1474                 if (sh->ndis_saddr == vaddr)
 1475                         break;
 1476                 /*
 1477                  * Check the physaddr too, just in case the driver lied
 1478                  * about the virtual address.
 1479                  */
 1480                 if (sh->ndis_paddr.np_quad == paddr.np_quad)
 1481                         break;
 1482                 l = l->nle_flink;
 1483         }
 1484 
 1485         if (sh == NULL) {
 1486                 NDIS_UNLOCK(sc);
 1487                 kprintf("NDIS: buggy driver tried to free "
 1488                     "invalid shared memory: vaddr: %p paddr: 0x%jx\n",
 1489                     vaddr, (uintmax_t)paddr.np_quad);
 1490                 return;
 1491         }
 1492 
 1493         RemoveEntryList(&sh->ndis_list);
 1494 
 1495         NDIS_UNLOCK(sc);
 1496 
 1497         bus_dmamap_unload(sh->ndis_stag, sh->ndis_smap);
 1498         bus_dmamem_free(sh->ndis_stag, sh->ndis_saddr, sh->ndis_smap);
 1499         bus_dma_tag_destroy(sh->ndis_stag);
 1500 
 1501         kfree(sh, M_DEVBUF);
 1502 }
 1503 
 1504 static ndis_status
 1505 NdisMMapIoSpace(void **vaddr, ndis_handle adapter, ndis_physaddr paddr,
 1506     uint32_t len)
 1507 {
 1508         if (adapter == NULL)
 1509                 return (NDIS_STATUS_FAILURE);
 1510 
 1511         *vaddr = MmMapIoSpace(paddr.np_quad, len, 0);
 1512 
 1513         if (*vaddr == NULL)
 1514                 return (NDIS_STATUS_FAILURE);
 1515 
 1516         return (NDIS_STATUS_SUCCESS);
 1517 }
 1518 
 1519 static void
 1520 NdisMUnmapIoSpace(ndis_handle adapter, void *vaddr, uint32_t len)
 1521 {
 1522         MmUnmapIoSpace(vaddr, len);
 1523 }
 1524 
 1525 static uint32_t
 1526 NdisGetCacheFillSize(void)
 1527 {
 1528         return (128);
 1529 }
 1530 
 1531 static void *
 1532 NdisGetRoutineAddress(unicode_string *ustr)
 1533 {
 1534         ansi_string             astr;
 1535 
 1536         if (RtlUnicodeStringToAnsiString(&astr, ustr, TRUE))
 1537                 return (NULL);
 1538         return (ndis_get_routine_address(ndis_functbl, astr.as_buf));
 1539 }
 1540 
 1541 static uint32_t
 1542 NdisMGetDmaAlignment(ndis_handle handle)
 1543 {
 1544         return (16);
 1545 }
 1546 
 1547 /*
 1548  * NDIS has two methods for dealing with NICs that support DMA.
 1549  * One is to just pass packets to the driver and let it call
 1550  * NdisMStartBufferPhysicalMapping() to map each buffer in the packet
 1551  * all by itself, and the other is to let the NDIS library handle the
 1552  * buffer mapping internally, and hand the driver an already populated
 1553  * scatter/gather fragment list. If the driver calls
 1554  * NdisMInitializeScatterGatherDma(), it wants to use the latter
 1555  * method.
 1556  */
 1557 
 1558 static ndis_status
 1559 NdisMInitializeScatterGatherDma(ndis_handle adapter, uint8_t is64,
 1560     uint32_t maxphysmap)
 1561 {
 1562         struct ndis_softc       *sc;
 1563         ndis_miniport_block     *block;
 1564         int                     error;
 1565 
 1566         if (adapter == NULL)
 1567                 return (NDIS_STATUS_FAILURE);
 1568         block = (ndis_miniport_block *)adapter;
 1569         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 1570 
 1571         /* Don't do this twice. */
 1572         if (sc->ndis_sc == 1)
 1573                 return (NDIS_STATUS_SUCCESS);
 1574 
 1575         error = bus_dma_tag_create(sc->ndis_parent_tag, ETHER_ALIGN, 0,
 1576             BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
 1577             MCLBYTES * NDIS_MAXSEG, NDIS_MAXSEG, MCLBYTES, BUS_DMA_ALLOCNOW,
 1578             &sc->ndis_ttag);
 1579 
 1580         sc->ndis_sc = 1;
 1581 
 1582         return (NDIS_STATUS_SUCCESS);
 1583 }
 1584 
 1585 void
 1586 NdisAllocatePacketPool(ndis_status *status, ndis_handle *pool,
 1587     uint32_t descnum, uint32_t protrsvdlen)
 1588 {
 1589         ndis_packet_pool        *p;
 1590         ndis_packet             *packets;
 1591         int                     i;
 1592 
 1593         p = ExAllocatePoolWithTag(NonPagedPool, sizeof(ndis_packet_pool), 0);
 1594         if (p == NULL) {
 1595                 *status = NDIS_STATUS_RESOURCES;
 1596                 return;
 1597         }
 1598 
 1599         p->np_cnt = descnum + NDIS_POOL_EXTRA;
 1600         p->np_protrsvd = protrsvdlen;
 1601         p->np_len = sizeof(ndis_packet) + protrsvdlen;
 1602 
 1603         packets = ExAllocatePoolWithTag(NonPagedPool, p->np_cnt *
 1604             p->np_len, 0);
 1605 
 1606 
 1607         if (packets == NULL) {
 1608                 ExFreePool(p);
 1609                 *status = NDIS_STATUS_RESOURCES;
 1610                 return;
 1611         }
 1612 
 1613         p->np_pktmem = packets;
 1614 
 1615         for (i = 0; i < p->np_cnt; i++)
 1616                 InterlockedPushEntrySList(&p->np_head,
 1617                     (struct slist_entry *)&packets[i]);
 1618 
 1619 #ifdef NDIS_DEBUG_PACKETS
 1620         p->np_dead = 0;
 1621         KeInitializeSpinLock(&p->np_lock);
 1622         KeInitializeEvent(&p->np_event, EVENT_TYPE_NOTIFY, TRUE);
 1623 #endif
 1624 
 1625         *pool = p;
 1626         *status = NDIS_STATUS_SUCCESS;
 1627 }
 1628 
 1629 void
 1630 NdisAllocatePacketPoolEx(ndis_status *status, ndis_handle *pool,
 1631     uint32_t descnum, uint32_t oflowdescnum, uint32_t protrsvdlen)
 1632 {
 1633         NdisAllocatePacketPool(status, pool, descnum + oflowdescnum,
 1634             protrsvdlen);
 1635 }
 1636 
 1637 uint32_t
 1638 NdisPacketPoolUsage(ndis_handle pool)
 1639 {
 1640         ndis_packet_pool        *p;
 1641 
 1642         p = (ndis_packet_pool *)pool;
 1643         return (p->np_cnt - ExQueryDepthSList(&p->np_head));
 1644 }
 1645 
 1646 void
 1647 NdisFreePacketPool(ndis_handle pool)
 1648 {
 1649         ndis_packet_pool        *p;
 1650         int                     usage;
 1651 #ifdef NDIS_DEBUG_PACKETS
 1652         uint8_t                 irql;
 1653 #endif
 1654 
 1655         p = (ndis_packet_pool *)pool;
 1656 
 1657 #ifdef NDIS_DEBUG_PACKETS
 1658         KeAcquireSpinLock(&p->np_lock, &irql);
 1659 #endif
 1660 
 1661         usage = NdisPacketPoolUsage(pool);
 1662 
 1663 #ifdef NDIS_DEBUG_PACKETS
 1664         if (usage) {
 1665                 p->np_dead = 1;
 1666                 KeResetEvent(&p->np_event);
 1667                 KeReleaseSpinLock(&p->np_lock, irql);
 1668                 KeWaitForSingleObject(&p->np_event, 0, 0, FALSE, NULL);
 1669         } else
 1670                 KeReleaseSpinLock(&p->np_lock, irql);
 1671 #endif
 1672 
 1673         ExFreePool(p->np_pktmem);
 1674         ExFreePool(p);
 1675 }
 1676 
 1677 void
 1678 NdisAllocatePacket(ndis_status *status, ndis_packet **packet, ndis_handle pool)
 1679 {
 1680         ndis_packet_pool        *p;
 1681         ndis_packet             *pkt;
 1682 #ifdef NDIS_DEBUG_PACKETS
 1683         uint8_t                 irql;
 1684 #endif
 1685 
 1686         p = (ndis_packet_pool *)pool;
 1687 
 1688 #ifdef NDIS_DEBUG_PACKETS
 1689         KeAcquireSpinLock(&p->np_lock, &irql);
 1690         if (p->np_dead) {
 1691                 KeReleaseSpinLock(&p->np_lock, irql);
 1692                 kprintf("NDIS: tried to allocate packet from dead pool %p\n",
 1693                     pool);
 1694                 *status = NDIS_STATUS_RESOURCES;
 1695                 return;
 1696         }
 1697 #endif
 1698 
 1699         pkt = (ndis_packet *)InterlockedPopEntrySList(&p->np_head);
 1700 
 1701 #ifdef NDIS_DEBUG_PACKETS
 1702         KeReleaseSpinLock(&p->np_lock, irql);
 1703 #endif
 1704 
 1705         if (pkt == NULL) {
 1706                 *status = NDIS_STATUS_RESOURCES;
 1707                 return;
 1708         }
 1709 
 1710 
 1711         bzero((char *)pkt, sizeof(ndis_packet));
 1712 
 1713         /* Save pointer to the pool. */
 1714         pkt->np_private.npp_pool = pool;
 1715 
 1716         /* Set the oob offset pointer. Lots of things expect this. */
 1717         pkt->np_private.npp_packetooboffset = offsetof(ndis_packet, np_oob);
 1718 
 1719         /*
 1720          * We must initialize the packet flags correctly in order
 1721          * for the NDIS_SET_PACKET_MEDIA_SPECIFIC_INFO() and
 1722          * NDIS_GET_PACKET_MEDIA_SPECIFIC_INFO() macros to work
 1723          * correctly.
 1724          */
 1725         pkt->np_private.npp_ndispktflags = NDIS_PACKET_ALLOCATED_BY_NDIS;
 1726         pkt->np_private.npp_validcounts = FALSE;
 1727 
 1728         *packet = pkt;
 1729 
 1730         *status = NDIS_STATUS_SUCCESS;
 1731 }
 1732 
 1733 void
 1734 NdisFreePacket(ndis_packet *packet)
 1735 {
 1736         ndis_packet_pool        *p;
 1737 #ifdef NDIS_DEBUG_PACKETS
 1738         uint8_t                 irql;
 1739 #endif
 1740 
 1741         p = (ndis_packet_pool *)packet->np_private.npp_pool;
 1742 
 1743 #ifdef NDIS_DEBUG_PACKETS
 1744         KeAcquireSpinLock(&p->np_lock, &irql);
 1745 #endif
 1746 
 1747         InterlockedPushEntrySList(&p->np_head, (slist_entry *)packet);
 1748 
 1749 #ifdef NDIS_DEBUG_PACKETS
 1750         if (p->np_dead) {
 1751                 if (ExQueryDepthSList(&p->np_head) == p->np_cnt)
 1752                         KeSetEvent(&p->np_event, IO_NO_INCREMENT, FALSE);
 1753         }
 1754         KeReleaseSpinLock(&p->np_lock, irql);
 1755 #endif
 1756 }
 1757 
 1758 static void
 1759 NdisUnchainBufferAtFront(ndis_packet *packet, ndis_buffer **buf)
 1760 {
 1761         ndis_packet_private     *priv;
 1762 
 1763         if (packet == NULL || buf == NULL)
 1764                 return;
 1765 
 1766         priv = &packet->np_private;
 1767 
 1768         priv->npp_validcounts = FALSE;
 1769 
 1770         if (priv->npp_head == priv->npp_tail) {
 1771                 *buf = priv->npp_head;
 1772                 priv->npp_head = priv->npp_tail = NULL;
 1773         } else {
 1774                 *buf = priv->npp_head;
 1775                 priv->npp_head = (*buf)->mdl_next;
 1776         }
 1777 }
 1778 
 1779 static void
 1780 NdisUnchainBufferAtBack(ndis_packet *packet, ndis_buffer **buf)
 1781 {
 1782         ndis_packet_private     *priv;
 1783         ndis_buffer             *tmp;
 1784 
 1785         if (packet == NULL || buf == NULL)
 1786                 return;
 1787 
 1788         priv = &packet->np_private;
 1789 
 1790         priv->npp_validcounts = FALSE;
 1791 
 1792         if (priv->npp_head == priv->npp_tail) {
 1793                 *buf = priv->npp_head;
 1794                 priv->npp_head = priv->npp_tail = NULL;
 1795         } else {
 1796                 *buf = priv->npp_tail;
 1797                 tmp = priv->npp_head;
 1798                 while (tmp->mdl_next != priv->npp_tail)
 1799                         tmp = tmp->mdl_next;
 1800                 priv->npp_tail = tmp;
 1801                 tmp->mdl_next = NULL;
 1802         }
 1803 }
 1804 
 1805 /*
 1806  * The NDIS "buffer" is really an MDL (memory descriptor list)
 1807  * which is used to describe a buffer in a way that allows it
 1808  * to mapped into different contexts. We have to be careful how
 1809  * we handle them: in some versions of Windows, the NdisFreeBuffer()
 1810  * routine is an actual function in the NDIS API, but in others
 1811  * it's just a macro wrapper around IoFreeMdl(). There's really
 1812  * no way to use the 'descnum' parameter to count how many
 1813  * "buffers" are allocated since in order to use IoFreeMdl() to
 1814  * dispose of a buffer, we have to use IoAllocateMdl() to allocate
 1815  * them, and IoAllocateMdl() just grabs them out of the heap.
 1816  */
 1817 
 1818 static void
 1819 NdisAllocateBufferPool(ndis_status *status, ndis_handle *pool,
 1820     uint32_t descnum)
 1821 {
 1822 
 1823         /*
 1824          * The only thing we can really do here is verify that descnum
 1825          * is a reasonable value, but I really don't know what to check
 1826          * it against.
 1827          */
 1828 
 1829         *pool = NonPagedPool;
 1830         *status = NDIS_STATUS_SUCCESS;
 1831 }
 1832 
 1833 static void
 1834 NdisFreeBufferPool(ndis_handle pool)
 1835 {
 1836 }
 1837 
 1838 static void
 1839 NdisAllocateBuffer(ndis_status *status, ndis_buffer **buffer, ndis_handle pool,
 1840     void *vaddr, uint32_t len)
 1841 {
 1842         ndis_buffer             *buf;
 1843 
 1844         buf = IoAllocateMdl(vaddr, len, FALSE, FALSE, NULL);
 1845         if (buf == NULL) {
 1846                 *status = NDIS_STATUS_RESOURCES;
 1847                 return;
 1848         }
 1849 
 1850         MmBuildMdlForNonPagedPool(buf);
 1851 
 1852         *buffer = buf;
 1853         *status = NDIS_STATUS_SUCCESS;
 1854 }
 1855 
 1856 static void
 1857 NdisFreeBuffer(ndis_buffer *buf)
 1858 {
 1859         IoFreeMdl(buf);
 1860 }
 1861 
 1862 /* Aw c'mon. */
 1863 
 1864 static uint32_t
 1865 NdisBufferLength(ndis_buffer *buf)
 1866 {
 1867         return (MmGetMdlByteCount(buf));
 1868 }
 1869 
 1870 /*
 1871  * Get the virtual address and length of a buffer.
 1872  * Note: the vaddr argument is optional.
 1873  */
 1874 
 1875 static void
 1876 NdisQueryBuffer(ndis_buffer *buf, void **vaddr, uint32_t *len)
 1877 {
 1878         if (vaddr != NULL)
 1879                 *vaddr = MmGetMdlVirtualAddress(buf);
 1880         *len = MmGetMdlByteCount(buf);
 1881 }
 1882 
 1883 /* Same as above -- we don't care about the priority. */
 1884 
 1885 static void
 1886 NdisQueryBufferSafe(ndis_buffer *buf, void **vaddr, uint32_t *len,
 1887     uint32_t prio)
 1888 {
 1889         if (vaddr != NULL)
 1890                 *vaddr = MmGetMdlVirtualAddress(buf);
 1891         *len = MmGetMdlByteCount(buf);
 1892 }
 1893 
 1894 /* Damnit Microsoft!! How many ways can you do the same thing?! */
 1895 
 1896 static void *
 1897 NdisBufferVirtualAddress(ndis_buffer *buf)
 1898 {
 1899         return (MmGetMdlVirtualAddress(buf));
 1900 }
 1901 
 1902 static void *
 1903 NdisBufferVirtualAddressSafe(ndis_buffer *buf, uint32_t prio)
 1904 {
 1905         return (MmGetMdlVirtualAddress(buf));
 1906 }
 1907 
 1908 static void
 1909 NdisAdjustBufferLength(ndis_buffer *buf, int len)
 1910 {
 1911         MmGetMdlByteCount(buf) = len;
 1912 }
 1913 
 1914 static uint32_t
 1915 NdisInterlockedIncrement(uint32_t *addend)
 1916 {
 1917         atomic_add_long((u_long *)addend, 1);
 1918         return (*addend);
 1919 }
 1920 
 1921 static uint32_t
 1922 NdisInterlockedDecrement(uint32_t *addend)
 1923 {
 1924         atomic_subtract_long((u_long *)addend, 1);
 1925         return (*addend);
 1926 }
 1927 
 1928 static uint32_t
 1929 NdisGetVersion(void)
 1930 {
 1931         return (0x00050001);
 1932 }
 1933 
 1934 static void
 1935 NdisInitializeEvent(ndis_event *event)
 1936 {
 1937         /*
 1938          * NDIS events are always notification
 1939          * events, and should be initialized to the
 1940          * not signaled state.
 1941          */
 1942         KeInitializeEvent(&event->ne_event, EVENT_TYPE_NOTIFY, FALSE);
 1943 }
 1944 
 1945 static void
 1946 NdisSetEvent(ndis_event *event)
 1947 {
 1948         KeSetEvent(&event->ne_event, IO_NO_INCREMENT, FALSE);
 1949 }
 1950 
 1951 static void
 1952 NdisResetEvent(ndis_event *event)
 1953 {
 1954         KeResetEvent(&event->ne_event);
 1955 }
 1956 
 1957 static uint8_t
 1958 NdisWaitEvent(ndis_event *event, uint32_t msecs)
 1959 {
 1960         int64_t                 duetime;
 1961         uint32_t                rval;
 1962 
 1963         duetime = ((int64_t)msecs * -10000);
 1964         rval = KeWaitForSingleObject(event,
 1965             0, 0, TRUE, msecs ? & duetime : NULL);
 1966 
 1967         if (rval == STATUS_TIMEOUT)
 1968                 return (FALSE);
 1969 
 1970         return (TRUE);
 1971 }
 1972 
 1973 static ndis_status
 1974 NdisUnicodeStringToAnsiString(ansi_string *dstr, unicode_string *sstr)
 1975 {
 1976         uint32_t                rval;
 1977 
 1978         rval = RtlUnicodeStringToAnsiString(dstr, sstr, FALSE);
 1979 
 1980         if (rval == STATUS_INSUFFICIENT_RESOURCES)
 1981                 return (NDIS_STATUS_RESOURCES);
 1982         if (rval)
 1983                 return (NDIS_STATUS_FAILURE);
 1984 
 1985         return (NDIS_STATUS_SUCCESS);
 1986 }
 1987 
 1988 static ndis_status
 1989 NdisAnsiStringToUnicodeString(unicode_string *dstr, ansi_string *sstr)
 1990 {
 1991         uint32_t                rval;
 1992 
 1993         rval = RtlAnsiStringToUnicodeString(dstr, sstr, FALSE);
 1994 
 1995         if (rval == STATUS_INSUFFICIENT_RESOURCES)
 1996                 return (NDIS_STATUS_RESOURCES);
 1997         if (rval)
 1998                 return (NDIS_STATUS_FAILURE);
 1999 
 2000         return (NDIS_STATUS_SUCCESS);
 2001 }
 2002 
 2003 static ndis_status
 2004 NdisMPciAssignResources(ndis_handle adapter, uint32_t slot,
 2005     ndis_resource_list **list)
 2006 {
 2007         ndis_miniport_block     *block;
 2008 
 2009         if (adapter == NULL || list == NULL)
 2010                 return (NDIS_STATUS_FAILURE);
 2011 
 2012         block = (ndis_miniport_block *)adapter;
 2013         *list = block->nmb_rlist;
 2014 
 2015         return (NDIS_STATUS_SUCCESS);
 2016 }
 2017 
 2018 static uint8_t
 2019 ndis_intr(kinterrupt *iobj, void *arg)
 2020 {
 2021         struct ndis_softc       *sc;
 2022         uint8_t                 is_our_intr = FALSE;
 2023         int                     call_isr = 0;
 2024         ndis_miniport_interrupt *intr;
 2025 
 2026         sc = arg;
 2027         intr = sc->ndis_block->nmb_interrupt;
 2028 
 2029         if (intr == NULL || sc->ndis_block->nmb_miniportadapterctx == NULL)
 2030                 return (FALSE);
 2031 
 2032         if (sc->ndis_block->nmb_interrupt->ni_isrreq == TRUE)
 2033                 MSCALL3(intr->ni_isrfunc, &is_our_intr, &call_isr,
 2034                     sc->ndis_block->nmb_miniportadapterctx);
 2035         else {
 2036                 MSCALL1(sc->ndis_chars->nmc_disable_interrupts_func,
 2037                     sc->ndis_block->nmb_miniportadapterctx);
 2038                 call_isr = 1;
 2039         }
 2040 
 2041         if (call_isr)
 2042                 IoRequestDpc(sc->ndis_block->nmb_deviceobj, NULL, sc);
 2043 
 2044         return (is_our_intr);
 2045 }
 2046 
 2047 static void
 2048 ndis_intrhand(kdpc *dpc, ndis_miniport_interrupt *intr, void *sysarg1,
 2049     void *sysarg2)
 2050 {
 2051         struct ndis_softc       *sc;
 2052         ndis_miniport_block     *block;
 2053         ndis_handle             adapter;
 2054 
 2055         block = intr->ni_block;
 2056         adapter = block->nmb_miniportadapterctx;
 2057         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 2058 
 2059         if (NDIS_SERIALIZED(sc->ndis_block))
 2060                 KeAcquireSpinLockAtDpcLevel(&block->nmb_lock);
 2061 
 2062         MSCALL1(intr->ni_dpcfunc, adapter);
 2063 
 2064         /* If there's a MiniportEnableInterrupt() routine, call it. */
 2065 
 2066         if (sc->ndis_chars->nmc_enable_interrupts_func != NULL)
 2067                 MSCALL1(sc->ndis_chars->nmc_enable_interrupts_func, adapter);
 2068 
 2069         if (NDIS_SERIALIZED(sc->ndis_block))
 2070                 KeReleaseSpinLockFromDpcLevel(&block->nmb_lock);
 2071 
 2072         /*
 2073          * Set the completion event if we've drained all
 2074          * pending interrupts.
 2075          */
 2076 
 2077         KeAcquireSpinLockAtDpcLevel(&intr->ni_dpccountlock);
 2078         intr->ni_dpccnt--;
 2079         if (intr->ni_dpccnt == 0)
 2080                 KeSetEvent(&intr->ni_dpcevt, IO_NO_INCREMENT, FALSE);
 2081         KeReleaseSpinLockFromDpcLevel(&intr->ni_dpccountlock);
 2082 }
 2083 
 2084 static ndis_status
 2085 NdisMRegisterInterrupt(ndis_miniport_interrupt *intr, ndis_handle adapter,
 2086     uint32_t ivec, uint32_t ilevel, uint8_t reqisr, uint8_t shared,
 2087     ndis_interrupt_mode imode)
 2088 {
 2089         ndis_miniport_block     *block;
 2090         ndis_miniport_characteristics *ch;
 2091         struct ndis_softc       *sc;
 2092         int                     error;
 2093 
 2094         block = adapter;
 2095         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 2096         ch = IoGetDriverObjectExtension(block->nmb_deviceobj->do_drvobj,
 2097             (void *)1);
 2098 
 2099         intr->ni_rsvd = ExAllocatePoolWithTag(NonPagedPool,
 2100             sizeof(struct mtx), 0);
 2101         if (intr->ni_rsvd == NULL)
 2102                 return (NDIS_STATUS_RESOURCES);
 2103 
 2104         intr->ni_block = adapter;
 2105         intr->ni_isrreq = reqisr;
 2106         intr->ni_shared = shared;
 2107         intr->ni_dpccnt = 0;
 2108         intr->ni_isrfunc = ch->nmc_isr_func;
 2109         intr->ni_dpcfunc = ch->nmc_interrupt_func;
 2110 
 2111         KeInitializeEvent(&intr->ni_dpcevt, EVENT_TYPE_NOTIFY, TRUE);
 2112         KeInitializeDpc(&intr->ni_dpc,
 2113             ndis_findwrap((funcptr)ndis_intrhand), intr);
 2114         KeSetImportanceDpc(&intr->ni_dpc, KDPC_IMPORTANCE_LOW);
 2115 
 2116         error = IoConnectInterrupt(&intr->ni_introbj,
 2117             ndis_findwrap((funcptr)ndis_intr), sc, NULL,
 2118             ivec, ilevel, 0, imode, shared, 0, FALSE);
 2119 
 2120         if (error != STATUS_SUCCESS)
 2121                 return (NDIS_STATUS_FAILURE);
 2122 
 2123         block->nmb_interrupt = intr;
 2124 
 2125         return (NDIS_STATUS_SUCCESS);
 2126 }
 2127 
 2128 static void
 2129 NdisMDeregisterInterrupt(ndis_miniport_interrupt *intr)
 2130 {
 2131         ndis_miniport_block     *block;
 2132         uint8_t                 irql;
 2133 
 2134         block = intr->ni_block;
 2135 
 2136         /* Should really be KeSynchronizeExecution() */
 2137 
 2138         KeAcquireSpinLock(intr->ni_introbj->ki_lock, &irql);
 2139         block->nmb_interrupt = NULL;
 2140         KeReleaseSpinLock(intr->ni_introbj->ki_lock, irql);
 2141 /*
 2142         KeFlushQueuedDpcs();
 2143 */
 2144         /* Disconnect our ISR */
 2145 
 2146         IoDisconnectInterrupt(intr->ni_introbj);
 2147 
 2148         KeWaitForSingleObject(&intr->ni_dpcevt, 0, 0, FALSE, NULL);
 2149         KeResetEvent(&intr->ni_dpcevt);
 2150 }
 2151 
 2152 static void
 2153 NdisMRegisterAdapterShutdownHandler(ndis_handle adapter, void *shutdownctx,
 2154     ndis_shutdown_handler shutdownfunc)
 2155 {
 2156         ndis_miniport_block     *block;
 2157         ndis_miniport_characteristics *chars;
 2158         struct ndis_softc       *sc;
 2159 
 2160         if (adapter == NULL)
 2161                 return;
 2162 
 2163         block = (ndis_miniport_block *)adapter;
 2164         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 2165         chars = sc->ndis_chars;
 2166 
 2167         chars->nmc_shutdown_handler = shutdownfunc;
 2168         chars->nmc_rsvd0 = shutdownctx;
 2169 }
 2170 
 2171 static void
 2172 NdisMDeregisterAdapterShutdownHandler(ndis_handle adapter)
 2173 {
 2174         ndis_miniport_block     *block;
 2175         ndis_miniport_characteristics *chars;
 2176         struct ndis_softc       *sc;
 2177 
 2178         if (adapter == NULL)
 2179                 return;
 2180 
 2181         block = (ndis_miniport_block *)adapter;
 2182         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 2183         chars = sc->ndis_chars;
 2184 
 2185         chars->nmc_shutdown_handler = NULL;
 2186         chars->nmc_rsvd0 = NULL;
 2187 }
 2188 
 2189 static uint32_t
 2190 NDIS_BUFFER_TO_SPAN_PAGES(ndis_buffer *buf)
 2191 {
 2192         if (buf == NULL)
 2193                 return (0);
 2194         if (MmGetMdlByteCount(buf) == 0)
 2195                 return (1);
 2196         return (SPAN_PAGES(MmGetMdlVirtualAddress(buf),
 2197             MmGetMdlByteCount(buf)));
 2198 }
 2199 
 2200 static void
 2201 NdisGetBufferPhysicalArraySize(ndis_buffer *buf, uint32_t *pages)
 2202 {
 2203         if (buf == NULL)
 2204                 return;
 2205 
 2206         *pages = NDIS_BUFFER_TO_SPAN_PAGES(buf);
 2207 }
 2208 
 2209 static void
 2210 NdisQueryBufferOffset(ndis_buffer *buf, uint32_t *off, uint32_t *len)
 2211 {
 2212         if (buf == NULL)
 2213                 return;
 2214 
 2215         *off = MmGetMdlByteOffset(buf);
 2216         *len = MmGetMdlByteCount(buf);
 2217 }
 2218 
 2219 void
 2220 NdisMSleep(uint32_t usecs)
 2221 {
 2222         ktimer                  timer;
 2223 
 2224         /*
 2225          * During system bootstrap, (i.e. cold == 1), we aren't
 2226          * allowed to sleep, so we have to do a hard DELAY()
 2227          * instead.
 2228          */
 2229 
 2230         if (cold)
 2231                 DELAY(usecs);
 2232         else {
 2233                 KeInitializeTimer(&timer);
 2234                 KeSetTimer(&timer, ((int64_t)usecs * -10), NULL);
 2235                 KeWaitForSingleObject(&timer, 0, 0, FALSE, NULL);
 2236         }
 2237 }
 2238 
 2239 static uint32_t
 2240 NdisReadPcmciaAttributeMemory(ndis_handle handle, uint32_t offset, void *buf,
 2241     uint32_t len)
 2242 {
 2243         struct ndis_softc       *sc;
 2244         ndis_miniport_block     *block;
 2245         bus_space_handle_t      bh;
 2246         bus_space_tag_t         bt;
 2247         char                    *dest;
 2248         int                     i;
 2249 
 2250         if (handle == NULL)
 2251                 return (0);
 2252 
 2253         block = (ndis_miniport_block *)handle;
 2254         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 2255         dest = buf;
 2256 
 2257         bh = rman_get_bushandle(sc->ndis_res_am);
 2258         bt = rman_get_bustag(sc->ndis_res_am);
 2259 
 2260         for (i = 0; i < len; i++)
 2261                 dest[i] = bus_space_read_1(bt, bh, (offset + i) * 2);
 2262 
 2263         return (i);
 2264 }
 2265 
 2266 static uint32_t
 2267 NdisWritePcmciaAttributeMemory(ndis_handle handle, uint32_t offset, void *buf,
 2268     uint32_t len)
 2269 {
 2270         struct ndis_softc       *sc;
 2271         ndis_miniport_block     *block;
 2272         bus_space_handle_t      bh;
 2273         bus_space_tag_t         bt;
 2274         char                    *src;
 2275         int                     i;
 2276 
 2277         if (handle == NULL)
 2278                 return (0);
 2279 
 2280         block = (ndis_miniport_block *)handle;
 2281         sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
 2282         src = buf;
 2283 
 2284         bh = rman_get_bushandle(sc->ndis_res_am);
 2285         bt = rman_get_bustag(sc->ndis_res_am);
 2286 
 2287         for (i = 0; i < len; i++)
 2288                 bus_space_write_1(bt, bh, (offset + i) * 2, src[i]);
 2289 
 2290         return (i);
 2291 }
 2292 
 2293 static list_entry *
 2294 NdisInterlockedInsertHeadList(list_entry *head, list_entry *entry,
 2295     ndis_spin_lock *lock)
 2296 {
 2297         list_entry              *flink;
 2298 
 2299         KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
 2300         flink = head->nle_flink;
 2301         entry->nle_flink = flink;
 2302         entry->nle_blink = head;
 2303         flink->nle_blink = entry;
 2304         head->nle_flink = entry;
 2305         KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
 2306 
 2307         return (flink);
 2308 }
 2309 
 2310 static list_entry *
 2311 NdisInterlockedRemoveHeadList(list_entry *head, ndis_spin_lock *lock)
 2312 {
 2313         list_entry              *flink;
 2314         list_entry              *entry;
 2315 
 2316         KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
 2317         entry = head->nle_flink;
 2318         flink = entry->nle_flink;
 2319         head->nle_flink = flink;
 2320         flink->nle_blink = head;
 2321         KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
 2322 
 2323         return (entry);
 2324 }
 2325 
 2326 static list_entry *
 2327 NdisInterlockedInsertTailList(list_entry *head, list_entry *entry,
 2328     ndis_spin_lock *lock)
 2329 {
 2330         list_entry              *blink;
 2331 
 2332         KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
 2333         blink = head->nle_blink;
 2334         entry->nle_flink = head;
 2335         entry->nle_blink = blink;
 2336         blink->nle_flink = entry;
 2337         head->nle_blink = entry;
 2338         KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
 2339 
 2340         return (blink);
 2341 }
 2342 
 2343 static uint8_t
 2344 NdisMSynchronizeWithInterrupt(ndis_miniport_interrupt *intr, void *syncfunc,
 2345     void *syncctx)
 2346 {
 2347         return (KeSynchronizeExecution(intr->ni_introbj, syncfunc, syncctx));
 2348 }
 2349 
 2350 static void
 2351 NdisGetCurrentSystemTime(uint64_t *tval)
 2352 {
 2353         ntoskrnl_time(tval);
 2354 }
 2355 
 2356 /*
 2357  * Return the number of milliseconds since the system booted.
 2358  */
 2359 static void
 2360 NdisGetSystemUpTime(uint32_t *tval)
 2361 {
 2362         struct timespec         ts;
 2363 
 2364         nanouptime(&ts);
 2365         *tval = ts.tv_nsec / 1000000 + ts.tv_sec * 1000;
 2366 }
 2367 
 2368 static void
 2369 NdisInitializeString(unicode_string *dst, char *src)
 2370 {
 2371         ansi_string             as;
 2372         RtlInitAnsiString(&as, src);
 2373         RtlAnsiStringToUnicodeString(dst, &as, TRUE);
 2374 }
 2375 
 2376 static void
 2377 NdisFreeString(unicode_string *str)
 2378 {
 2379         RtlFreeUnicodeString(str);
 2380 }
 2381 
 2382 static ndis_status
 2383 NdisMRemoveMiniport(ndis_handle *adapter)
 2384 {
 2385         return (NDIS_STATUS_SUCCESS);
 2386 }
 2387 
 2388 static void
 2389 NdisInitAnsiString(ansi_string *dst, char *src)
 2390 {
 2391         RtlInitAnsiString(dst, src);
 2392 }
 2393 
 2394 static void
 2395 NdisInitUnicodeString(unicode_string *dst, uint16_t *src)
 2396 {
 2397         RtlInitUnicodeString(dst, src);
 2398 }
 2399 
 2400 static void NdisMGetDeviceProperty(ndis_handle adapter,
 2401     device_object **phydevobj, device_object **funcdevobj,
 2402     device_object **nextdevobj, cm_resource_list *resources,
 2403     cm_resource_list *transresources)
 2404 {
 2405         ndis_miniport_block     *block;
 2406 
 2407         block = (ndis_miniport_block *)adapter;
 2408 
 2409         if (phydevobj != NULL)
 2410                 *phydevobj = block->nmb_physdeviceobj;
 2411         if (funcdevobj != NULL)
 2412                 *funcdevobj = block->nmb_deviceobj;
 2413         if (nextdevobj != NULL)
 2414                 *nextdevobj = block->nmb_nextdeviceobj;
 2415 }
 2416 
 2417 static void
 2418 NdisGetFirstBufferFromPacket(ndis_packet *packet, ndis_buffer **buf,
 2419     void **firstva, uint32_t *firstlen, uint32_t *totlen)
 2420 {
 2421         ndis_buffer             *tmp;
 2422 
 2423         tmp = packet->np_private.npp_head;
 2424         *buf = tmp;
 2425         if (tmp == NULL) {
 2426                 *firstva = NULL;
 2427                 *firstlen = *totlen = 0;
 2428         } else {
 2429                 *firstva = MmGetMdlVirtualAddress(tmp);
 2430                 *firstlen = *totlen = MmGetMdlByteCount(tmp);
 2431                 for (tmp = tmp->mdl_next; tmp != NULL; tmp = tmp->mdl_next)
 2432                         *totlen += MmGetMdlByteCount(tmp);
 2433         }
 2434 }
 2435 
 2436 static void
 2437 NdisGetFirstBufferFromPacketSafe(ndis_packet *packet, ndis_buffer **buf,
 2438     void **firstva, uint32_t *firstlen, uint32_t *totlen, uint32_t prio)
 2439 {
 2440         NdisGetFirstBufferFromPacket(packet, buf, firstva, firstlen, totlen);
 2441 }
 2442 
 2443 static int
 2444 ndis_find_sym(linker_file_t lf, char *filename, char *suffix, caddr_t *sym)
 2445 {
 2446         char                    *fullsym;
 2447         char                    *suf;
 2448         int                     i;
 2449 
 2450         fullsym = ExAllocatePoolWithTag(NonPagedPool, MAXPATHLEN, 0);
 2451         if (fullsym == NULL)
 2452                 return (ENOMEM);
 2453 
 2454         bzero(fullsym, MAXPATHLEN);
 2455         strncpy(fullsym, filename, MAXPATHLEN);
 2456         if (strlen(filename) < 4) {
 2457                 ExFreePool(fullsym);
 2458                 return (EINVAL);
 2459         }
 2460 
 2461         /* If the filename has a .ko suffix, strip if off. */
 2462         suf = fullsym + (strlen(filename) - 3);
 2463         if (strcmp(suf, ".ko") == 0)
 2464                 *suf = '\0';
 2465 
 2466         for (i = 0; i < strlen(fullsym); i++) {
 2467                 if (fullsym[i] == '.')
 2468                         fullsym[i] = '_';
 2469                 else
 2470                         fullsym[i] = tolower(fullsym[i]);
 2471         }
 2472         strcat(fullsym, suffix);
 2473         linker_file_lookup_symbol(lf, fullsym, 0, sym);
 2474         ExFreePool(fullsym);
 2475         if (*sym == 0)
 2476                 return (ENOENT);
 2477 
 2478         return (0);
 2479 }
 2480 
 2481 struct ndis_checkmodule {
 2482         char    *afilename;
 2483         ndis_fh *fh;
 2484 };
 2485 
 2486 /*
 2487  * See if a single module contains the symbols for a specified file.
 2488  */
 2489 static int
 2490 NdisCheckModule(linker_file_t lf, void *context)
 2491 {
 2492         struct ndis_checkmodule *nc;
 2493         caddr_t                 kldstart, kldend;
 2494 
 2495         nc = (struct ndis_checkmodule *)context;
 2496         if (ndis_find_sym(lf, nc->afilename, "_start", &kldstart))
 2497                 return (0);
 2498         if (ndis_find_sym(lf, nc->afilename, "_end", &kldend))
 2499                 return (0);
 2500         nc->fh->nf_vp = lf;
 2501         nc->fh->nf_map = NULL;
 2502         nc->fh->nf_type = NDIS_FH_TYPE_MODULE;
 2503         nc->fh->nf_maplen = (kldend - kldstart) & 0xFFFFFFFF;
 2504         return (1);
 2505 }
 2506 
 2507 /* can also return NDIS_STATUS_RESOURCES/NDIS_STATUS_ERROR_READING_FILE */
 2508 static void
 2509 NdisOpenFile(ndis_status *status, ndis_handle *filehandle,
 2510     uint32_t *filelength, unicode_string *filename, ndis_physaddr highestaddr)
 2511 {
 2512         ansi_string             as;
 2513         char                    *afilename = NULL;
 2514         struct thread           *td = curthread;
 2515         struct nlookupdata      nd;
 2516         int                     error;
 2517         struct vattr            vat;
 2518         struct vattr            *vap = &vat;
 2519         ndis_fh                 *fh;
 2520         char                    *path;
 2521         struct ndis_checkmodule nc;
 2522         struct vnode            *vp;
 2523 
 2524         if (RtlUnicodeStringToAnsiString(&as, filename, TRUE)) {
 2525                 *status = NDIS_STATUS_RESOURCES;
 2526                 return;
 2527         }
 2528 
 2529         afilename = kstrdup(as.as_buf, M_DEVBUF);
 2530         RtlFreeAnsiString(&as);
 2531 
 2532         fh = ExAllocatePoolWithTag(NonPagedPool, sizeof(ndis_fh), 0);
 2533         if (fh == NULL) {
 2534                 kfree(afilename, M_DEVBUF);
 2535                 *status = NDIS_STATUS_RESOURCES;
 2536                 return;
 2537         }
 2538 
 2539         fh->nf_name = afilename;
 2540 
 2541         /*
 2542          * During system bootstrap, it's impossible to load files
 2543          * from the rootfs since it's not mounted yet. We therefore
 2544          * offer the possibility of opening files that have been
 2545          * preloaded as modules instead. Both choices will work
 2546          * when kldloading a module from multiuser, but only the
 2547          * module option will work during bootstrap. The module
 2548          * loading option works by using the ndiscvt(8) utility
 2549          * to convert the arbitrary file into a .ko using objcopy(1).
 2550          * This file will contain two special symbols: filename_start
 2551          * and filename_end. All we have to do is traverse the KLD
 2552          * list in search of those symbols and we've found the file
 2553          * data. As an added bonus, ndiscvt(8) will also generate
 2554          * a normal .o file which can be linked statically with
 2555          * the kernel. This means that the symbols will actual reside
 2556          * in the kernel's symbol table, but that doesn't matter to
 2557          * us since the kernel appears to us as just another module.
 2558          */
 2559 
 2560         nc.afilename = afilename;
 2561         nc.fh = fh;
 2562         if (linker_file_foreach(NdisCheckModule, &nc)) {
 2563                 *filelength = fh->nf_maplen;
 2564                 *filehandle = fh;
 2565                 *status = NDIS_STATUS_SUCCESS;
 2566                 return;
 2567         }
 2568 
 2569         if (mountlist_boot_getfirst() == NULL) {
 2570                 ExFreePool(fh);
 2571                 *status = NDIS_STATUS_FILE_NOT_FOUND;
 2572                 kprintf("NDIS: could not find file %s in linker list\n",
 2573                     afilename);
 2574                 kprintf("NDIS: and no filesystems mounted yet, "
 2575                     "aborting NdisOpenFile()\n");
 2576                 kfree(afilename, M_DEVBUF);
 2577                 return;
 2578         }
 2579 
 2580         path = ExAllocatePoolWithTag(NonPagedPool, MAXPATHLEN, 0);
 2581         if (path == NULL) {
 2582                 ExFreePool(fh);
 2583                 kfree(afilename, M_DEVBUF);
 2584                 *status = NDIS_STATUS_RESOURCES;
 2585                 return;
 2586         }
 2587 
 2588         ksnprintf(path, MAXPATHLEN, "%s/%s", ndis_filepath, afilename);
 2589 
 2590         /* Some threads don't have a current working directory. */
 2591 
 2592         if (td->td_proc && td->td_proc->p_fd->fd_rdir == NULL)
 2593                 td->td_proc->p_fd->fd_rdir = rootvnode;
 2594         if (td->td_proc && td->td_proc->p_fd->fd_cdir == NULL)
 2595                 td->td_proc->p_fd->fd_cdir = rootvnode;
 2596 
 2597         error = nlookup_init(&nd, path, UIO_SYSSPACE, NLC_FOLLOW|NLC_LOCKVP);
 2598         if (error)
 2599                 goto init_fail;
 2600         error = vn_open(&nd, NULL, FREAD, 0);
 2601         if (error)
 2602                 goto open_fail;
 2603 
 2604         ExFreePool(path);
 2605 
 2606         vp = nd.nl_open_vp;
 2607         nd.nl_open_vp = NULL;
 2608 
 2609         /* Get the file size. */
 2610         VOP_GETATTR(vp, vap);
 2611         vn_unlock(vp);
 2612 
 2613         fh->nf_vp = nd.nl_open_vp;
 2614         fh->nf_map = NULL;
 2615         fh->nf_type = NDIS_FH_TYPE_VFS;
 2616         *filehandle = fh;
 2617         *filelength = fh->nf_maplen = vap->va_size & 0xFFFFFFFF;
 2618         *status = NDIS_STATUS_SUCCESS;
 2619 
 2620         return;
 2621 
 2622 open_fail:
 2623         nlookup_done(&nd);
 2624 init_fail:
 2625         *status = NDIS_STATUS_FILE_NOT_FOUND;
 2626         ExFreePool(fh);
 2627         kprintf("NDIS: open file %s failed: %d\n", path, error);
 2628         ExFreePool(path);
 2629         kfree(afilename, M_DEVBUF);
 2630 }
 2631 
 2632 static void
 2633 NdisMapFile(ndis_status *status, void **mappedbuffer, ndis_handle filehandle)
 2634 {
 2635         ndis_fh                 *fh;
 2636         struct thread           *td = curthread;
 2637         linker_file_t           lf;
 2638         caddr_t                 kldstart;
 2639         int                     error, resid;
 2640         struct vnode            *vp;
 2641 
 2642         if (filehandle == NULL) {
 2643                 *status = NDIS_STATUS_FAILURE;
 2644                 return;
 2645         }
 2646 
 2647         fh = (ndis_fh *)filehandle;
 2648 
 2649         if (fh->nf_vp == NULL) {
 2650                 *status = NDIS_STATUS_FAILURE;
 2651                 return;
 2652         }
 2653 
 2654         if (fh->nf_map != NULL) {
 2655                 *status = NDIS_STATUS_ALREADY_MAPPED;
 2656                 return;
 2657         }
 2658 
 2659         if (fh->nf_type == NDIS_FH_TYPE_MODULE) {
 2660                 lf = fh->nf_vp;
 2661                 if (ndis_find_sym(lf, fh->nf_name, "_start", &kldstart)) {
 2662                         *status = NDIS_STATUS_FAILURE;
 2663                         return;
 2664                 }
 2665                 fh->nf_map = kldstart;
 2666                 *status = NDIS_STATUS_SUCCESS;
 2667                 *mappedbuffer = fh->nf_map;
 2668                 return;
 2669         }
 2670 
 2671         fh->nf_map = ExAllocatePoolWithTag(NonPagedPool, fh->nf_maplen, 0);
 2672 
 2673         if (fh->nf_map == NULL) {
 2674                 *status = NDIS_STATUS_RESOURCES;
 2675                 return;
 2676         }
 2677 
 2678         vp = fh->nf_vp;
 2679         error = vn_rdwr(UIO_READ, vp, fh->nf_map, fh->nf_maplen, 0,
 2680             UIO_SYSSPACE, 0, td->td_ucred, &resid);
 2681 
 2682         if (error)
 2683                 *status = NDIS_STATUS_FAILURE;
 2684         else {
 2685                 *status = NDIS_STATUS_SUCCESS;
 2686                 *mappedbuffer = fh->nf_map;
 2687         }
 2688 }
 2689 
 2690 static void
 2691 NdisUnmapFile(ndis_handle filehandle)
 2692 {
 2693         ndis_fh                 *fh;
 2694         fh = (ndis_fh *)filehandle;
 2695 
 2696         if (fh->nf_map == NULL)
 2697                 return;
 2698 
 2699         if (fh->nf_type == NDIS_FH_TYPE_VFS)
 2700                 ExFreePool(fh->nf_map);
 2701         fh->nf_map = NULL;
 2702 }
 2703 
 2704 static void
 2705 NdisCloseFile(ndis_handle filehandle)
 2706 {
 2707         ndis_fh                 *fh;
 2708         struct vnode            *vp;
 2709 
 2710         if (filehandle == NULL)
 2711                 return;
 2712 
 2713         fh = (ndis_fh *)filehandle;
 2714         if (fh->nf_map != NULL) {
 2715                 if (fh->nf_type == NDIS_FH_TYPE_VFS)
 2716                         ExFreePool(fh->nf_map);
 2717                 fh->nf_map = NULL;
 2718         }
 2719 
 2720         if (fh->nf_vp == NULL)
 2721                 return;
 2722 
 2723         if (fh->nf_type == NDIS_FH_TYPE_VFS) {
 2724                 vp = fh->nf_vp;
 2725                 vn_close(vp, FREAD);
 2726         }
 2727 
 2728         fh->nf_vp = NULL;
 2729         kfree(fh->nf_name, M_DEVBUF);
 2730         ExFreePool(fh);
 2731 }
 2732 
 2733 static uint8_t
 2734 NdisSystemProcessorCount(void)
 2735 {
 2736         return (ncpus);
 2737 }
 2738 
 2739 static void
 2740 NdisGetCurrentProcessorCounts(uint32_t *idle_count, uint32_t *kernel_and_user,
 2741     uint32_t *index)
 2742 {
 2743 #if 0 /* XXX swildner */
 2744         struct pcpu             *pcpu;
 2745 
 2746         pcpu = pcpu_find(curthread->td_oncpu);
 2747         *index = pcpu->pc_cpuid;
 2748         *idle_count = pcpu->pc_cp_time[CP_IDLE];
 2749         *kernel_and_user = pcpu->pc_cp_time[CP_INTR];
 2750 #else
 2751         panic("%s", __func__);
 2752 #endif
 2753 }
 2754 
 2755 typedef void (*ndis_statusdone_handler)(ndis_handle);
 2756 typedef void (*ndis_status_handler)(ndis_handle, ndis_status,
 2757         void *, uint32_t);
 2758 
 2759 static void
 2760 NdisMIndicateStatusComplete(ndis_handle adapter)
 2761 {
 2762         ndis_miniport_block     *block;
 2763         ndis_statusdone_handler statusdonefunc;
 2764 
 2765         block = (ndis_miniport_block *)adapter;
 2766         statusdonefunc = block->nmb_statusdone_func;
 2767 
 2768         MSCALL1(statusdonefunc, adapter);
 2769 }
 2770 
 2771 static void
 2772 NdisMIndicateStatus(ndis_handle adapter, ndis_status status, void *sbuf,
 2773     uint32_t slen)
 2774 {
 2775         ndis_miniport_block     *block;
 2776         ndis_status_handler     statusfunc;
 2777 
 2778         block = (ndis_miniport_block *)adapter;
 2779         statusfunc = block->nmb_status_func;
 2780 
 2781         MSCALL4(statusfunc, adapter, status, sbuf, slen);
 2782 }
 2783 
 2784 /*
 2785  * The DDK documentation says that you should use IoQueueWorkItem()
 2786  * instead of ExQueueWorkItem(). The problem is, IoQueueWorkItem()
 2787  * is fundamentally incompatible with NdisScheduleWorkItem(), which
 2788  * depends on the API semantics of ExQueueWorkItem(). In our world,
 2789  * ExQueueWorkItem() is implemented on top of IoAllocateQueueItem()
 2790  * anyway.
 2791  *
 2792  * There are actually three distinct APIs here. NdisScheduleWorkItem()
 2793  * takes a pointer to an NDIS_WORK_ITEM. ExQueueWorkItem() takes a pointer
 2794  * to a WORK_QUEUE_ITEM. And finally, IoQueueWorkItem() takes a pointer
 2795  * to an opaque work item thingie which you get from IoAllocateWorkItem().
 2796  * An NDIS_WORK_ITEM is not the same as a WORK_QUEUE_ITEM. However,
 2797  * the NDIS_WORK_ITEM has some opaque storage at the end of it, and we
 2798  * (ab)use this storage as a WORK_QUEUE_ITEM, which is what we submit
 2799  * to ExQueueWorkItem().
 2800  *
 2801  * Got all that? (Sheesh.)
 2802  */
 2803 
 2804 ndis_status
 2805 NdisScheduleWorkItem(ndis_work_item *work)
 2806 {
 2807         work_queue_item         *wqi;
 2808 
 2809         wqi = (work_queue_item *)work->nwi_wraprsvd;
 2810         ExInitializeWorkItem(wqi,
 2811             (work_item_func)work->nwi_func, work->nwi_ctx);
 2812         ExQueueWorkItem(wqi, WORKQUEUE_DELAYED);
 2813 
 2814         return (NDIS_STATUS_SUCCESS);
 2815 }
 2816 
 2817 static void
 2818 NdisCopyFromPacketToPacket(ndis_packet *dpkt, uint32_t doff, uint32_t reqlen,
 2819     ndis_packet *spkt, uint32_t soff, uint32_t *cpylen)
 2820 {
 2821         ndis_buffer             *src, *dst;
 2822         char                    *sptr, *dptr;
 2823         int                     resid, copied, len, scnt, dcnt;
 2824 
 2825         *cpylen = 0;
 2826 
 2827         src = spkt->np_private.npp_head;
 2828         dst = dpkt->np_private.npp_head;
 2829 
 2830         sptr = MmGetMdlVirtualAddress(src);
 2831         dptr = MmGetMdlVirtualAddress(dst);
 2832         scnt = MmGetMdlByteCount(src);
 2833         dcnt = MmGetMdlByteCount(dst);
 2834 
 2835         while (soff) {
 2836                 if (MmGetMdlByteCount(src) > soff) {
 2837                         sptr += soff;
 2838                         scnt = MmGetMdlByteCount(src)- soff;
 2839                         break;
 2840                 }
 2841                 soff -= MmGetMdlByteCount(src);
 2842                 src = src->mdl_next;
 2843                 if (src == NULL)
 2844                         return;
 2845                 sptr = MmGetMdlVirtualAddress(src);
 2846         }
 2847 
 2848         while (doff) {
 2849                 if (MmGetMdlByteCount(dst) > doff) {
 2850                         dptr += doff;
 2851                         dcnt = MmGetMdlByteCount(dst) - doff;
 2852                         break;
 2853                 }
 2854                 doff -= MmGetMdlByteCount(dst);
 2855                 dst = dst->mdl_next;
 2856                 if (dst == NULL)
 2857                         return;
 2858                 dptr = MmGetMdlVirtualAddress(dst);
 2859         }
 2860 
 2861         resid = reqlen;
 2862         copied = 0;
 2863 
 2864         while(1) {
 2865                 if (resid < scnt)
 2866                         len = resid;
 2867                 else
 2868                         len = scnt;
 2869                 if (dcnt < len)
 2870                         len = dcnt;
 2871 
 2872                 bcopy(sptr, dptr, len);
 2873 
 2874                 copied += len;
 2875                 resid -= len;
 2876                 if (resid == 0)
 2877                         break;
 2878 
 2879                 dcnt -= len;
 2880                 if (dcnt == 0) {
 2881                         dst = dst->mdl_next;
 2882                         if (dst == NULL)
 2883                                 break;
 2884                         dptr = MmGetMdlVirtualAddress(dst);
 2885                         dcnt = MmGetMdlByteCount(dst);
 2886                 }
 2887 
 2888                 scnt -= len;
 2889                 if (scnt == 0) {
 2890                         src = src->mdl_next;
 2891                         if (src == NULL)
 2892                                 break;
 2893                         sptr = MmGetMdlVirtualAddress(src);
 2894                         scnt = MmGetMdlByteCount(src);
 2895                 }
 2896         }
 2897 
 2898         *cpylen = copied;
 2899 }
 2900 
 2901 static void
 2902 NdisCopyFromPacketToPacketSafe(ndis_packet *dpkt, uint32_t doff,
 2903     uint32_t reqlen, ndis_packet *spkt, uint32_t soff, uint32_t *cpylen,
 2904     uint32_t prio)
 2905 {
 2906         NdisCopyFromPacketToPacket(dpkt, doff, reqlen, spkt, soff, cpylen);
 2907 }
 2908 
 2909 static void
 2910 NdisIMCopySendPerPacketInfo(ndis_packet *dpkt, ndis_packet *spkt)
 2911 {
 2912         memcpy(&dpkt->np_ext, &spkt->np_ext, sizeof(ndis_packet_extension));
 2913 }
 2914 
 2915 static ndis_status
 2916 NdisMRegisterDevice(ndis_handle handle, unicode_string *devname,
 2917     unicode_string *symname, driver_dispatch *majorfuncs[], void **devobj,
 2918     ndis_handle *devhandle)
 2919 {
 2920         uint32_t                status;
 2921         device_object           *dobj;
 2922 
 2923         status = IoCreateDevice(handle, 0, devname,
 2924             FILE_DEVICE_UNKNOWN, 0, FALSE, &dobj);
 2925 
 2926         if (status == STATUS_SUCCESS) {
 2927                 *devobj = dobj;
 2928                 *devhandle = dobj;
 2929         }
 2930 
 2931         return (status);
 2932 }
 2933 
 2934 static ndis_status
 2935 NdisMDeregisterDevice(ndis_handle handle)
 2936 {
 2937         IoDeleteDevice(handle);
 2938         return (NDIS_STATUS_SUCCESS);
 2939 }
 2940 
 2941 static ndis_status
 2942 NdisMQueryAdapterInstanceName(unicode_string *name, ndis_handle handle)
 2943 {
 2944         ndis_miniport_block     *block;
 2945         device_t                dev;
 2946         ansi_string             as;
 2947 
 2948         block = (ndis_miniport_block *)handle;
 2949         dev = block->nmb_physdeviceobj->do_devext;
 2950 
 2951         RtlInitAnsiString(&as, __DECONST(char *, device_get_nameunit(dev)));
 2952         if (RtlAnsiStringToUnicodeString(name, &as, TRUE))
 2953                 return (NDIS_STATUS_RESOURCES);
 2954 
 2955         return (NDIS_STATUS_SUCCESS);
 2956 }
 2957 
 2958 static void
 2959 NdisMRegisterUnloadHandler(ndis_handle handle, void *func)
 2960 {
 2961 }
 2962 
 2963 static void
 2964 dummy(void)
 2965 {
 2966         kprintf("NDIS dummy called...\n");
 2967 }
 2968 
 2969 /*
 2970  * Note: a couple of entries in this table specify the
 2971  * number of arguments as "foo + 1". These are routines
 2972  * that accept a 64-bit argument, passed by value. On
 2973  * x86, these arguments consume two longwords on the stack,
 2974  * so we lie and say there's one additional argument so
 2975  * that the wrapping routines will do the right thing.
 2976  */
 2977 
 2978 image_patch_table ndis_functbl[] = {
 2979         IMPORT_SFUNC(NdisCopyFromPacketToPacket, 6),
 2980         IMPORT_SFUNC(NdisCopyFromPacketToPacketSafe, 7),
 2981         IMPORT_SFUNC(NdisIMCopySendPerPacketInfo, 2),
 2982         IMPORT_SFUNC(NdisScheduleWorkItem, 1),
 2983         IMPORT_SFUNC(NdisMIndicateStatusComplete, 1),
 2984         IMPORT_SFUNC(NdisMIndicateStatus, 4),
 2985         IMPORT_SFUNC(NdisSystemProcessorCount, 0),
 2986         IMPORT_SFUNC(NdisGetCurrentProcessorCounts, 3),
 2987         IMPORT_SFUNC(NdisUnchainBufferAtBack, 2),
 2988         IMPORT_SFUNC(NdisGetFirstBufferFromPacket, 5),
 2989         IMPORT_SFUNC(NdisGetFirstBufferFromPacketSafe, 6),
 2990         IMPORT_SFUNC(NdisGetBufferPhysicalArraySize, 2),
 2991         IMPORT_SFUNC(NdisMGetDeviceProperty, 6),
 2992         IMPORT_SFUNC(NdisInitAnsiString, 2),
 2993         IMPORT_SFUNC(NdisInitUnicodeString, 2),
 2994         IMPORT_SFUNC(NdisWriteConfiguration, 4),
 2995         IMPORT_SFUNC(NdisAnsiStringToUnicodeString, 2),
 2996         IMPORT_SFUNC(NdisTerminateWrapper, 2),
 2997         IMPORT_SFUNC(NdisOpenConfigurationKeyByName, 4),
 2998         IMPORT_SFUNC(NdisOpenConfigurationKeyByIndex, 5),
 2999         IMPORT_SFUNC(NdisMRemoveMiniport, 1),
 3000         IMPORT_SFUNC(NdisInitializeString, 2),
 3001         IMPORT_SFUNC(NdisFreeString, 1),
 3002         IMPORT_SFUNC(NdisGetCurrentSystemTime, 1),
 3003         IMPORT_SFUNC(NdisGetRoutineAddress, 1),
 3004         IMPORT_SFUNC(NdisGetSystemUpTime, 1),
 3005         IMPORT_SFUNC(NdisGetVersion, 0),
 3006         IMPORT_SFUNC(NdisMSynchronizeWithInterrupt, 3),
 3007         IMPORT_SFUNC(NdisMAllocateSharedMemoryAsync, 4),
 3008         IMPORT_SFUNC(NdisInterlockedInsertHeadList, 3),
 3009         IMPORT_SFUNC(NdisInterlockedInsertTailList, 3),
 3010         IMPORT_SFUNC(NdisInterlockedRemoveHeadList, 2),
 3011         IMPORT_SFUNC(NdisInitializeWrapper, 4),
 3012         IMPORT_SFUNC(NdisMRegisterMiniport, 3),
 3013         IMPORT_SFUNC(NdisAllocateMemoryWithTag, 3),
 3014         IMPORT_SFUNC(NdisAllocateMemory, 4 + 1),
 3015         IMPORT_SFUNC(NdisMSetAttributesEx, 5),
 3016         IMPORT_SFUNC(NdisCloseConfiguration, 1),
 3017         IMPORT_SFUNC(NdisReadConfiguration, 5),
 3018         IMPORT_SFUNC(NdisOpenConfiguration, 3),
 3019         IMPORT_SFUNC(NdisAcquireSpinLock, 1),
 3020         IMPORT_SFUNC(NdisReleaseSpinLock, 1),
 3021         IMPORT_SFUNC(NdisDprAcquireSpinLock, 1),
 3022         IMPORT_SFUNC(NdisDprReleaseSpinLock, 1),
 3023         IMPORT_SFUNC(NdisAllocateSpinLock, 1),
 3024         IMPORT_SFUNC(NdisInitializeReadWriteLock, 1),
 3025         IMPORT_SFUNC(NdisAcquireReadWriteLock, 3),
 3026         IMPORT_SFUNC(NdisReleaseReadWriteLock, 2),
 3027         IMPORT_SFUNC(NdisFreeSpinLock, 1),
 3028         IMPORT_SFUNC(NdisFreeMemory, 3),
 3029         IMPORT_SFUNC(NdisReadPciSlotInformation, 5),
 3030         IMPORT_SFUNC(NdisWritePciSlotInformation, 5),
 3031         IMPORT_SFUNC_MAP(NdisImmediateReadPciSlotInformation,
 3032             NdisReadPciSlotInformation, 5),
 3033         IMPORT_SFUNC_MAP(NdisImmediateWritePciSlotInformation,
 3034             NdisWritePciSlotInformation, 5),
 3035         IMPORT_CFUNC(NdisWriteErrorLogEntry, 0),
 3036         IMPORT_SFUNC(NdisMStartBufferPhysicalMapping, 6),
 3037         IMPORT_SFUNC(NdisMCompleteBufferPhysicalMapping, 3),
 3038         IMPORT_SFUNC(NdisMInitializeTimer, 4),
 3039         IMPORT_SFUNC(NdisInitializeTimer, 3),
 3040         IMPORT_SFUNC(NdisSetTimer, 2),
 3041         IMPORT_SFUNC(NdisMCancelTimer, 2),
 3042         IMPORT_SFUNC_MAP(NdisCancelTimer, NdisMCancelTimer, 2),
 3043         IMPORT_SFUNC(NdisMSetPeriodicTimer, 2),
 3044         IMPORT_SFUNC(NdisMQueryAdapterResources, 4),
 3045         IMPORT_SFUNC(NdisMRegisterIoPortRange, 4),
 3046         IMPORT_SFUNC(NdisMDeregisterIoPortRange, 4),
 3047         IMPORT_SFUNC(NdisReadNetworkAddress, 4),
 3048         IMPORT_SFUNC(NdisQueryMapRegisterCount, 2),
 3049         IMPORT_SFUNC(NdisMAllocateMapRegisters, 5),
 3050         IMPORT_SFUNC(NdisMFreeMapRegisters, 1),
 3051         IMPORT_SFUNC(NdisMAllocateSharedMemory, 5),
 3052         IMPORT_SFUNC(NdisMMapIoSpace, 4 + 1),
 3053         IMPORT_SFUNC(NdisMUnmapIoSpace, 3),
 3054         IMPORT_SFUNC(NdisGetCacheFillSize, 0),
 3055         IMPORT_SFUNC(NdisMGetDmaAlignment, 1),
 3056         IMPORT_SFUNC(NdisMInitializeScatterGatherDma, 3),
 3057         IMPORT_SFUNC(NdisAllocatePacketPool, 4),
 3058         IMPORT_SFUNC(NdisAllocatePacketPoolEx, 5),
 3059         IMPORT_SFUNC(NdisAllocatePacket, 3),
 3060         IMPORT_SFUNC(NdisFreePacket, 1),
 3061         IMPORT_SFUNC(NdisFreePacketPool, 1),
 3062         IMPORT_SFUNC_MAP(NdisDprAllocatePacket, NdisAllocatePacket, 3),
 3063         IMPORT_SFUNC_MAP(NdisDprFreePacket, NdisFreePacket, 1),
 3064         IMPORT_SFUNC(NdisAllocateBufferPool, 3),
 3065         IMPORT_SFUNC(NdisAllocateBuffer, 5),
 3066         IMPORT_SFUNC(NdisQueryBuffer, 3),
 3067         IMPORT_SFUNC(NdisQueryBufferSafe, 4),
 3068         IMPORT_SFUNC(NdisBufferVirtualAddress, 1),
 3069         IMPORT_SFUNC(NdisBufferVirtualAddressSafe, 2),
 3070         IMPORT_SFUNC(NdisBufferLength, 1),
 3071         IMPORT_SFUNC(NdisFreeBuffer, 1),
 3072         IMPORT_SFUNC(NdisFreeBufferPool, 1),
 3073         IMPORT_SFUNC(NdisInterlockedIncrement, 1),
 3074         IMPORT_SFUNC(NdisInterlockedDecrement, 1),
 3075         IMPORT_SFUNC(NdisInitializeEvent, 1),
 3076         IMPORT_SFUNC(NdisSetEvent, 1),
 3077         IMPORT_SFUNC(NdisResetEvent, 1),
 3078         IMPORT_SFUNC(NdisWaitEvent, 2),
 3079         IMPORT_SFUNC(NdisUnicodeStringToAnsiString, 2),
 3080         IMPORT_SFUNC(NdisMPciAssignResources, 3),
 3081         IMPORT_SFUNC(NdisMFreeSharedMemory, 5 + 1),
 3082         IMPORT_SFUNC(NdisMRegisterInterrupt, 7),
 3083         IMPORT_SFUNC(NdisMDeregisterInterrupt, 1),
 3084         IMPORT_SFUNC(NdisMRegisterAdapterShutdownHandler, 3),
 3085         IMPORT_SFUNC(NdisMDeregisterAdapterShutdownHandler, 1),
 3086         IMPORT_SFUNC(NDIS_BUFFER_TO_SPAN_PAGES, 1),
 3087         IMPORT_SFUNC(NdisQueryBufferOffset, 3),
 3088         IMPORT_SFUNC(NdisAdjustBufferLength, 2),
 3089         IMPORT_SFUNC(NdisPacketPoolUsage, 1),
 3090         IMPORT_SFUNC(NdisMSleep, 1),
 3091         IMPORT_SFUNC(NdisUnchainBufferAtFront, 2),
 3092         IMPORT_SFUNC(NdisReadPcmciaAttributeMemory, 4),
 3093         IMPORT_SFUNC(NdisWritePcmciaAttributeMemory, 4),
 3094         IMPORT_SFUNC(NdisOpenFile, 5 + 1),
 3095         IMPORT_SFUNC(NdisMapFile, 3),
 3096         IMPORT_SFUNC(NdisUnmapFile, 1),
 3097         IMPORT_SFUNC(NdisCloseFile, 1),
 3098         IMPORT_SFUNC(NdisMRegisterDevice, 6),
 3099         IMPORT_SFUNC(NdisMDeregisterDevice, 1),
 3100         IMPORT_SFUNC(NdisMQueryAdapterInstanceName, 2),
 3101         IMPORT_SFUNC(NdisMRegisterUnloadHandler, 2),
 3102         IMPORT_SFUNC(ndis_timercall, 4),
 3103         IMPORT_SFUNC(ndis_asyncmem_complete, 2),
 3104         IMPORT_SFUNC(ndis_intr, 2),
 3105         IMPORT_SFUNC(ndis_intrhand, 4),
 3106 
 3107         /*
 3108          * This last entry is a catch-all for any function we haven't
 3109          * implemented yet. The PE import list patching routine will
 3110          * use it for any function that doesn't have an explicit match
 3111          * in this table.
 3112          */
 3113 
 3114         { NULL, (FUNC)dummy, NULL, 0, WINDRV_WRAP_STDCALL },
 3115 
 3116         /* End of list. */
 3117 
 3118         { NULL, NULL, NULL }
 3119 };

Cache object: 1b1ef16b969daba0b18fd2345f3f48cd


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