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windows-nt/Source/XPSP1/NT/net/ndis/samples/muxim/mux.h

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/*++
Copyright (c) 1992-2001 Microsoft Corporation
Module Name:
mux.h
Abstract:
Data structures, defines and function prototypes for the MUX driver.
Environment:
Kernel mode only.
Revision History:
--*/
#ifdef NDIS51_MINIPORT
#define MUX_MAJOR_NDIS_VERSION 5
#define MUX_MINOR_NDIS_VERSION 1
#else
#define MUX_MAJOR_NDIS_VERSION 4
#define MUX_MINOR_NDIS_VERSION 0
#endif
#ifdef NDIS51
#define MUX_PROT_MAJOR_NDIS_VERSION 5
#define MUX_PROT_MINOR_NDIS_VERSION 0
#else
#define MUX_PROT_MAJOR_NDIS_VERSION 4
#define MUX_PROT_MINOR_NDIS_VERSION 0
#endif
#define TAG 'SxuM'
#define WAIT_INFINITE 0
#if DBG
//
// Debug levels: lower values indicate higher urgency
//
#define MUX_EXTRA_LOUD 20
#define MUX_VERY_LOUD 10
#define MUX_LOUD 8
#define MUX_INFO 6
#define MUX_WARN 4
#define MUX_ERROR 2
#define MUX_FATAL 0
extern INT muxDebugLevel;
#define DBGPRINT(lev, Fmt) \
{ \
if ((lev) <= muxDebugLevel) \
{ \
DbgPrint("MUX-IM: "); \
DbgPrint Fmt; \
} \
}
#else
#define DBGPRINT(lev, Fmt)
#endif //DBG
// forward declarations
typedef struct _ADAPT ADAPT, *PADAPT;
typedef struct _VELAN VELAN, *PVELAN;
typedef struct _MUX_NDIS_REQUEST MUX_NDIS_REQUEST, *PMUX_NDIS_REQUEST;
typedef
VOID
(*PMUX_REQ_COMPLETE_HANDLER) (
IN PADAPT pAdapt,
IN struct _MUX_NDIS_REQUEST * pMuxRequest,
IN NDIS_STATUS Status
);
// This OID specifies the NDIS version in use by the
// virtual miniport driver. The high byte is the major version.
// The low byte is the minor version.
#define VELAN_DRIVER_VERSION ((MUX_MAJOR_NDIS_VERSION << 8) + \
(MUX_MINOR_NDIS_VERSION))
// media type, we use ethernet, change if necessary
#define VELAN_MEDIA_TYPE NdisMedium802_3
// change to your company name instead of using Microsoft
#define VELAN_VENDOR_DESC "Microsoft"
// Highest byte is the NIC byte plus three vendor bytes, they are normally
// obtained from the NIC
#define VELAN_VENDOR_ID 0x00FFFFFF
#define VELAN_MAX_MCAST_LIST 32
#define VELAN_MAX_SEND_PKTS 5
#define ETH_MAX_PACKET_SIZE 1514
#define ETH_MIN_PACKET_SIZE 60
#define ETH_HEADER_SIZE 14
#define VELAN_SUPPORTED_FILTERS ( \
NDIS_PACKET_TYPE_DIRECTED | \
NDIS_PACKET_TYPE_MULTICAST | \
NDIS_PACKET_TYPE_BROADCAST | \
NDIS_PACKET_TYPE_PROMISCUOUS | \
NDIS_PACKET_TYPE_ALL_MULTICAST)
#define MUX_ADAPTER_PACKET_FILTER \
NDIS_PACKET_TYPE_PROMISCUOUS
//
// Define flag bits we set on send packets to prevent
// loopback from occurring on the lower binding.
//
#ifdef NDIS51
#define MUX_SEND_PACKET_FLAGS NDIS_FLAGS_DONT_LOOPBACK
#else
#define NDIS_FLAGS_SKIP_LOOPBACK_WIN2K 0x400
#define MUX_SEND_PACKET_FLAGS (NDIS_FLAGS_DONT_LOOPBACK | \
NDIS_FLAGS_SKIP_LOOPBACK_WIN2K)
#endif
#define MIN_PACKET_POOL_SIZE 255
#define MAX_PACKET_POOL_SIZE 4096
typedef UCHAR MUX_MAC_ADDRESS[6];
//
// Our context stored in packets sent down to the
// lower binding. Note that this sample driver only forwards
// sends down; it does not originate sends itself.
// These packets are allocated from the SendPacketPool.
//
typedef struct _MUX_SEND_RSVD
{
PVELAN pVElan; // originating ELAN
PNDIS_PACKET pOriginalPacket; // original packet
} MUX_SEND_RSVD, *PMUX_SEND_RSVD;
#define MUX_RSVD_FROM_SEND_PACKET(_pPkt) \
((PMUX_SEND_RSVD)(_pPkt)->ProtocolReserved)
//
// Our context stored in each packet forwarded up to an
// ELAN from a lower binding. The original packet refers to
// a packet indicated up to us that should be returned via
// NdisReturnPackets when our packet is returned to us. This
// is set to NULL there isn't such a packet.
// These packets are allocated from the RecvPacketPool.
//
typedef struct _MUX_RECV_RSVD
{
PNDIS_PACKET pOriginalPacket;
} MUX_RECV_RSVD, *PMUX_RECV_RSVD;
#define MUX_RSVD_FROM_RECV_PACKET(_pPkt) \
((PMUX_RECV_RSVD)(_pPkt)->MiniportReserved)
//
// Make sure we don't attempt to use more than the allowed
// room in MiniportReserved on received packets.
//
C_ASSERT(sizeof(MUX_RECV_RSVD) <= sizeof(((PNDIS_PACKET)0)->MiniportReserved));
//
// Out context stored in each packet that we use to forward
// a TransferData request to the lower binding.
// These packets are allocated from the RecvPacketPool.
//
typedef struct _MUX_TD_RSVD
{
PVELAN pVElan;
PNDIS_PACKET pOriginalPacket;
} MUX_TD_RSVD, *PMUX_TD_RSVD;
#define MUX_RSVD_FROM_TD_PACKET(_pPkt) \
((PMUX_TD_RSVD)(_pPkt)->ProtocolReserved)
//
// Default values:
//
#define MUX_DEFAULT_LINK_SPEED 100000 // in 100s of bits/sec
#define MUX_DEFAULT_LOOKAHEAD_SIZE 512
NTSTATUS
DriverEntry(
IN PDRIVER_OBJECT DriverObject,
IN PUNICODE_STRING RegistryPath
);
NTSTATUS
PtDispatch(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
);
NDIS_STATUS
PtRegisterDevice(
VOID
);
NDIS_STATUS
PtDeregisterDevice(
VOID
);
//
// Protocol proto-types
//
VOID
PtOpenAdapterComplete(
IN NDIS_HANDLE ProtocolBindingContext,
IN NDIS_STATUS Status,
IN NDIS_STATUS OpenErrorStatus
);
VOID
PtQueryAdapterInfo(
IN PADAPT pAdapt
);
VOID
PtQueryAdapterSync(
IN PADAPT pAdapt,
IN NDIS_OID Oid,
IN PVOID InformationBuffer,
IN ULONG InformationBufferLength
);
VOID
PtRequestAdapterAsync(
IN PADAPT pAdapt,
IN NDIS_REQUEST_TYPE RequestType,
IN NDIS_OID Oid,
IN PVOID InformationBuffer,
IN ULONG InformationBufferLength,
IN PMUX_REQ_COMPLETE_HANDLER pCallback
);
VOID
PtCloseAdapterComplete(
IN NDIS_HANDLE ProtocolBindingContext,
IN NDIS_STATUS Status
);
VOID
PtResetComplete(
IN NDIS_HANDLE ProtocolBindingContext,
IN NDIS_STATUS Status
);
VOID
PtRequestComplete(
IN NDIS_HANDLE ProtocolBindingContext,
IN PNDIS_REQUEST NdisRequest,
IN NDIS_STATUS Status
);
VOID
PtCompleteForwardedRequest(
IN PADAPT pAdapt,
IN PMUX_NDIS_REQUEST pMuxNdisRequest,
IN NDIS_STATUS Status
);
VOID
PtPostProcessPnPCapabilities(
IN PVELAN pVElan,
IN PVOID InformationBuffer,
IN ULONG InformationBufferLength
);
VOID
PtCompleteBlockingRequest(
IN PADAPT pAdapt,
IN PMUX_NDIS_REQUEST pMuxNdisRequest,
IN NDIS_STATUS Status
);
VOID
PtDiscardCompletedRequest(
IN PADAPT pAdapt,
IN PMUX_NDIS_REQUEST pMuxNdisRequest,
IN NDIS_STATUS Status
);
VOID
PtStatus(
IN NDIS_HANDLE ProtocolBindingContext,
IN NDIS_STATUS GeneralStatus,
IN PVOID StatusBuffer,
IN UINT StatusBufferSize
);
VOID
PtStatusComplete(
IN NDIS_HANDLE ProtocolBindingContext
);
VOID
PtSendComplete(
IN NDIS_HANDLE ProtocolBindingContext,
IN PNDIS_PACKET Packet,
IN NDIS_STATUS Status
);
VOID
PtTransferDataComplete(
IN NDIS_HANDLE ProtocolBindingContext,
IN PNDIS_PACKET Packet,
IN NDIS_STATUS Status,
IN UINT BytesTransferred
);
NDIS_STATUS
PtReceive(
IN NDIS_HANDLE ProtocolBindingContext,
IN NDIS_HANDLE MacReceiveContext,
IN PVOID HeaderBuffer,
IN UINT HeaderBufferSize,
IN PVOID LookAheadBuffer,
IN UINT LookaheadBufferSize,
IN UINT PacketSize
);
VOID
PtReceiveComplete(
IN NDIS_HANDLE ProtocolBindingContext
);
INT
PtReceivePacket(
IN NDIS_HANDLE ProtocolBindingContext,
IN PNDIS_PACKET Packet
);
VOID
PtBindAdapter(
OUT PNDIS_STATUS Status,
IN NDIS_HANDLE BindContext,
IN PNDIS_STRING DeviceName,
IN PVOID SystemSpecific1,
IN PVOID SystemSpecific2
);
VOID
PtUnbindAdapter(
OUT PNDIS_STATUS Status,
IN NDIS_HANDLE ProtocolBindingContext,
IN NDIS_HANDLE UnbindContext
);
NDIS_STATUS
PtPNPHandler(
IN NDIS_HANDLE ProtocolBindingContext,
IN PNET_PNP_EVENT pNetPnPEvent
);
NDIS_STATUS
PtCreateAndStartVElan(
IN PADAPT pAdapt,
IN PNDIS_STRING pVElanKey
);
PVELAN
PtAllocateAndInitializeVElan(
IN PADAPT pAdapt,
IN PNDIS_STRING pVElanKey
);
VOID
PtDeallocateVElan(
IN PVELAN pVElan
);
VOID
PtStopVElan(
IN PVELAN pVElan
);
VOID
PtUnlinkVElanFromAdapter(
IN PVELAN pVElan
);
PVELAN
PtFindVElan(
IN PADAPT pAdapt,
IN PNDIS_STRING pElanKey
);
VOID
PtBootStrapVElans(
IN PADAPT pAdapt
);
VOID
PtReferenceVElan(
IN PVELAN pVElan,
IN PUCHAR String
);
ULONG
PtDereferenceVElan(
IN PVELAN pVElan,
IN PUCHAR String
);
BOOLEAN
PtReferenceAdapter(
IN PADAPT pAdapt,
IN PUCHAR String
);
ULONG
PtDereferenceAdapter(
IN PADAPT pAdapt,
IN PUCHAR String
);
//
// Miniport proto-types
//
NDIS_STATUS
MPInitialize(
OUT PNDIS_STATUS OpenErrorStatus,
OUT PUINT SelectedMediumIndex,
IN PNDIS_MEDIUM MediumArray,
IN UINT MediumArraySize,
IN NDIS_HANDLE MiniportAdapterHandle,
IN NDIS_HANDLE WrapperConfigurationContext
);
VOID
MPSendPackets(
IN NDIS_HANDLE MiniportAdapterContext,
IN PPNDIS_PACKET PacketArray,
IN UINT NumberOfPackets
);
NDIS_STATUS
MPQueryInformation(
IN NDIS_HANDLE MiniportAdapterContext,
IN NDIS_OID Oid,
IN PVOID InformationBuffer,
IN ULONG InformationBufferLength,
OUT PULONG BytesWritten,
OUT PULONG BytesNeeded
);
NDIS_STATUS
MPSetInformation(
IN NDIS_HANDLE MiniportAdapterContext,
IN NDIS_OID Oid,
IN PVOID InformationBuffer,
IN ULONG InformationBufferLength,
OUT PULONG BytesRead,
OUT PULONG BytesNeeded
);
VOID
MPReturnPacket(
IN NDIS_HANDLE MiniportAdapterContext,
IN PNDIS_PACKET Packet
);
NDIS_STATUS
MPTransferData(
OUT PNDIS_PACKET Packet,
OUT PUINT BytesTransferred,
IN NDIS_HANDLE MiniportAdapterContext,
IN NDIS_HANDLE MiniportReceiveContext,
IN UINT ByteOffset,
IN UINT BytesToTransfer
);
VOID
MPHalt(
IN NDIS_HANDLE MiniportAdapterContext
);
NDIS_STATUS
MPSetPacketFilter(
IN PVELAN pVElan,
IN ULONG PacketFilter
);
NDIS_STATUS
MPSetMulticastList(
IN PVELAN pVElan,
IN PVOID InformationBuffer,
IN ULONG InformationBufferLength,
OUT PULONG pBytesRead,
OUT PULONG pBytesNeeded
);
PUCHAR
MacAddrToString(PVOID In
);
VOID
MPGenerateMacAddr(
PVELAN pVElan
);
#ifdef NDIS51_MINIPORT
VOID
MPCancelSendPackets(
IN NDIS_HANDLE MiniportAdapterContext,
IN PVOID CancelId
);
VOID
MPDevicePnPEvent(
IN NDIS_HANDLE MiniportAdapterContext,
IN NDIS_DEVICE_PNP_EVENT DevicePnPEvent,
IN PVOID InformationBuffer,
IN ULONG InformationBufferLength
);
VOID
MPAdapterShutdown(
IN NDIS_HANDLE MiniportAdapterContext
);
#endif //NDIS51_MINIPORT
VOID
MPUnload(
IN PDRIVER_OBJECT DriverObject
);
NDIS_STATUS
MPForwardRequest(
IN PVELAN pVElan,
IN NDIS_REQUEST_TYPE RequestType,
IN NDIS_OID Oid,
IN PVOID InformationBuffer,
IN ULONG InformationBufferLength,
OUT PULONG BytesReadOrWritten,
OUT PULONG BytesNeeded
);
//
// Super-structure for NDIS_REQUEST, to allow us to keep context
// about requests sent down to a lower binding.
//
typedef struct _MUX_NDIS_REQUEST
{
PVELAN pVElan; // Set iff this is a forwarded
// request from a VELAN.
NDIS_STATUS Status; // Completion status
NDIS_EVENT Event; // Used to block for completion.
PMUX_REQ_COMPLETE_HANDLER pCallback; // Called on completion of request
NDIS_REQUEST Request;
} MUX_NDIS_REQUEST, *PMUX_NDIS_REQUEST;
//
// The ADAPT object represents a binding to a lower adapter by
// the protocol edge of this driver. Based on the configured
// Upper bindings, zero or more virtual miniport devices (VELANs)
// are created above this binding.
//
typedef struct _ADAPT
{
// Chain adapters. Access to this is protected by the global lock.
LIST_ENTRY Link;
// References to this adapter.
ULONG RefCount;
// Handle to the lower adapter, used in NDIS calls referring
// to this adapter.
NDIS_HANDLE BindingHandle;
// List of all the virtual ELANs created on this lower binding
LIST_ENTRY VElanList;
// Length of above list.
ULONG VElanCount;
// String used to access configuration for this binding.
NDIS_STRING ConfigString;
// Open Status. Used by bind/halt for Open/Close Adapter status.
NDIS_STATUS Status;
NDIS_EVENT Event;
//
// Packet filter set to the underlying adapter. This is
// a combination (union) of filter bits set on all
// attached VELAN miniports.
//
ULONG PacketFilter;
// Medium of the underlying Adapter.
NDIS_MEDIUM Medium;
// Link speed of the underlying adapter.
ULONG LinkSpeed;
// Max lookahead size for the underlying adapter.
ULONG MaxLookAhead;
// Power state of the underlying adapter
NDIS_DEVICE_POWER_STATE PtDevicePowerState;
// Ethernet address of the underlying adapter.
UCHAR CurrentAddress[ETH_LENGTH_OF_ADDRESS];
#ifndef WIN9X
//
// Read/Write lock: allows multiple readers but only a single
// writer. Used to protect the VELAN list and fields (e.g. packet
// filter) shared on an ADAPT by multiple VELANs. Code that
// needs to traverse the VELAN list safely acquires a READ lock.
// Code that needs to safely modify the VELAN list or shared
// fields acquires a WRITE lock (which also excludes READers).
//
// See macros MUX_ACQUIRE_ADAPT_xxx/MUX_RELEASE_ADAPT_xxx below.
//
// TBD - if we want to support this on Win9X, reimplement this!
//
NDIS_RW_LOCK ReadWriteLock;
#endif // WIN9X
} ADAPT, *PADAPT;
//
// VELAN object represents a virtual ELAN instance and its
// corresponding virtual miniport adapter.
//
typedef struct _VELAN
{
// Link into parent adapter's VELAN list.
LIST_ENTRY Link;
// References to this VELAN.
ULONG RefCount;
// Parent ADAPT.
PADAPT pAdapt;
// Copy of BindingHandle from ADAPT.
NDIS_HANDLE BindingHandle;
// Adapter handle for NDIS up-calls related to this virtual miniport.
NDIS_HANDLE MiniportAdapterHandle;
// Virtual miniport's power state.
NDIS_DEVICE_POWER_STATE MPDevicePowerState;
// Has our Halt entry point been called?
BOOLEAN MiniportHalting;
// Do we need to indicate receive complete?
BOOLEAN IndicateRcvComplete;
// Do we need to indicate status complete?
BOOLEAN IndicateStatusComplete;
// Synchronization fields
BOOLEAN MiniportInitPending;
NDIS_EVENT MiniportInitEvent;
// Uncompleted Sends/Requests to the adapter below.
ULONG OutstandingSends;
// Count outstanding indications, including received
// packets, passed up to protocols on this VELAN.
ULONG OutstandingReceives;
// Packet pool for send packets
NDIS_HANDLE SendPacketPoolHandle;
// Packet pool for receive packets
NDIS_HANDLE RecvPacketPoolHandle;
// A request block that is used to forward a request presented
// to the virtual miniport, to the lower binding. Since NDIS
// serializes requests to a miniport, we only need one of these
// per VELAN.
//
MUX_NDIS_REQUEST Request;
PULONG BytesNeeded;
PULONG BytesReadOrWritten;
// Have we queued a request because the lower binding is
// at a low power state?
BOOLEAN QueuedRequest;
// Have we started to deinitialize this VELAN?
BOOLEAN DeInitializing;
// configuration
UCHAR PermanentAddress[ETH_LENGTH_OF_ADDRESS];
UCHAR CurrentAddress[ETH_LENGTH_OF_ADDRESS];
NDIS_STRING CfgDeviceName; // used as the unique
// ID for the VELAN
ULONG VElanNumber; // logical Elan number
//
// ----- Buffer Management: Header buffers and Protocol buffers ----
//
// Some standard miniport parameters (OID values).
ULONG PacketFilter;
ULONG LookAhead;
ULONG LinkSpeed;
ULONG MaxBusySends;
ULONG MaxBusyRecvs;
// Packet counts
ULONG64 GoodTransmits;
ULONG64 GoodReceives;
ULONG NumTxSinceLastAdjust;
// Count of transmit errors
ULONG TxAbortExcessCollisions;
ULONG TxLateCollisions;
ULONG TxDmaUnderrun;
ULONG TxLostCRS;
ULONG TxOKButDeferred;
ULONG OneRetry;
ULONG MoreThanOneRetry;
ULONG TotalRetries;
ULONG TransmitFailuresOther;
// Count of receive errors
ULONG RcvCrcErrors;
ULONG RcvAlignmentErrors;
ULONG RcvResourceErrors;
ULONG RcvDmaOverrunErrors;
ULONG RcvCdtFrames;
ULONG RcvRuntErrors;
#if IEEE_VLAN_SUPPORT
ULONG RcvFormatErrors;
ULONG RcvVlanIdErrors;
#endif
ULONG RegNumTcb;
// Multicast list
MUX_MAC_ADDRESS McastAddrs[VELAN_MAX_MCAST_LIST];
ULONG McastAddrCount;
#if IEEE_VLAN_SUPPORT
ULONG VlanId;
NDIS_HANDLE BufferPoolHandle;
NPAGED_LOOKASIDE_LIST TagLookaside;
#endif
NDIS_STATUS LastIndicatedStatus;
NDIS_STATUS LatestUnIndicateStatus;
} VELAN, *PVELAN;
#if IEEE_VLAN_SUPPORT
#define TPID 0x0081
//
// Define tag_header structure
//
typedef struct _VLAN_TAG_HEADER
{
UCHAR TagInfo[2];
} VLAN_TAG_HEADER, *PVLAN_TAG_HEADER;
//
// Define context struct that used when the lower driver
// uses non-packet indication. It contains the original
// context, the tagging information and the tag-header
// length
//
typedef struct _MUX_RCV_CONTEXT
{
ULONG TagHeaderLen;
NDIS_PACKET_8021Q_INFO NdisPacket8021QInfo;
PVOID MacRcvContext;
}MUX_RCV_CONTEXT, *PMUX_RCV_CONTEXT;
//
// Macro definitions for VLAN support
//
#define VLAN_TAG_HEADER_SIZE 4
#define VLANID_DEFAULT 0
#define VLAN_ID_MAX 0xfff
#define VLAN_ID_MIN 0x0
#define USER_PRIORITY_MASK 0xe0
#define CANONICAL_FORMAT_ID_MASK 0x10
#define HIGH_VLAN_ID_MASK 0x0F
//
// Get information for tag headre
//
#define GET_CANONICAL_FORMAT_ID_FROM_TAG(_pTagHeader) \
( _pTagHeader->TagInfo[0] & CANONICAL_FORMAT_ID_MASK)
#define GET_USER_PRIORITY_FROM_TAG(_pTagHeader) \
( _pTagHeader->TagInfo[0] & USER_PRIORITY_MASK)
#define GET_VLAN_ID_FROM_TAG(_pTagHeader) \
(((USHORT)(_pTagHeader->TagInfo[0] & HIGH_VLAN_ID_MASK) << 8) | (USHORT)(_pTagHeader->TagInfo[1]))
//
// Clear the tag header struct
//
#define INITIALIZE_TAG_HEADER_TO_ZERO(_pTagHeader) \
{ \
_pTagHeader->TagInfo[0] = 0; \
_pTagHeader->TagInfo[1] = 0; \
}
//
// Set VLAN information to tag header
// Before we called all the set macro, first we need to initialize pTagHeader to be 0
//
#define SET_CANONICAL_FORMAT_ID_TO_TAG(_pTagHeader, CanonicalFormatId) \
_pTagHeader->TagInfo[0] |= ((UCHAR)CanonicalFormatId << 4)
#define SET_USER_PRIORITY_TO_TAG(_pTagHeader, UserPriority) \
_pTagHeader->TagInfo[0] |= ((UCHAR)UserPriority << 5)
#define SET_VLAN_ID_TO_TAG(_pTagHeader, VlanId) \
{ \
_pTagHeader->TagInfo[0] |= (((UCHAR)VlanId >> 8) & 0x0f); \
_pTagHeader->TagInfo[1] |= (UCHAR)VlanId;\
}
//
// Copy tagging information in the indicated frame to per packet info
//
#define COPY_TAG_INFO_FROM_HEADER_TO_PACKET_INFO(_Ieee8021qInfo, _pTagHeader) \
{ \
(_Ieee8021qInfo).TagHeader.UserPriority = ((_pTagHeader->TagInfo[0] & USER_PRIORITY_MASK) >> 5); \
(_Ieee8021qInfo).TagHeader.CanonicalFormatId = ((_pTagHeader->TagInfo[0] & CANONICAL_FORMAT_ID_MASK) >> 4); \
(_Ieee8021qInfo).TagHeader.VlanId = (((USHORT)(_pTagHeader->TagInfo[0] & HIGH_VLAN_ID_MASK) << 8)| (USHORT)(_pTagHeader->TagInfo[1])); \
}
//
// Function to handle tagging on sending side
//
NDIS_STATUS
MPHandleSendTagging(
IN PVELAN pVElan,
IN PNDIS_PACKET Packet,
IN OUT PNDIS_PACKET MyPacket
);
//
// Functions to handle tagging on receiving side with packet indication
//
NDIS_STATUS
PtHandleRcvTagging(
IN PVELAN pVElan,
IN PNDIS_PACKET Packet,
IN OUT PNDIS_PACKET MyPacket
);
#endif //IEEE_VLAN_SUPPORT
//
// Macro definitions for others.
//
//
// Is a given power state a low-power state?
//
#define MUX_IS_LOW_POWER_STATE(_PwrState) \
((_PwrState) > NdisDeviceStateD0)
#define MUX_INIT_ADAPT_RW_LOCK(_pAdapt) \
NdisInitializeReadWriteLock(&(_pAdapt)->ReadWriteLock)
#define MUX_ACQUIRE_ADAPT_READ_LOCK(_pAdapt, _pLockState) \
NdisAcquireReadWriteLock(&(_pAdapt)->ReadWriteLock, \
FALSE, \
_pLockState)
#define MUX_RELEASE_ADAPT_READ_LOCK(_pAdapt, _pLockState) \
NdisReleaseReadWriteLock(&(_pAdapt)->ReadWriteLock, \
_pLockState)
#define MUX_ACQUIRE_ADAPT_WRITE_LOCK(_pAdapt, _pLockState) \
NdisAcquireReadWriteLock(&(_pAdapt)->ReadWriteLock, \
TRUE, \
_pLockState)
#define MUX_RELEASE_ADAPT_WRITE_LOCK(_pAdapt, _pLockState) \
NdisReleaseReadWriteLock(&(_pAdapt)->ReadWriteLock, \
_pLockState)
#define MUX_INCR_PENDING_RECEIVES(_pVElan) \
NdisInterlockedIncrement(&pVElan->OutstandingReceives)
#define MUX_DECR_PENDING_RECEIVES(_pVElan) \
NdisInterlockedDecrement(&pVElan->OutstandingReceives)
#define MUX_INCR_PENDING_SENDS(_pVElan) \
NdisInterlockedIncrement(&pVElan->OutstandingSends)
#define MUX_DECR_PENDING_SENDS(_pVElan) \
NdisInterlockedDecrement(&pVElan->OutstandingSends)
#define MUX_INCR_STATISTICS(_pUlongVal) \
NdisInterlockedIncrement(_pUlongVal)
#define MUX_INCR_STATISTICS64(_pUlong64Val) \
{ \
PLARGE_INTEGER _pLargeInt = (PLARGE_INTEGER)_pUlong64Val;\
if (NdisInterlockedIncrement(&_pLargeInt->LowPart) == 0) \
{ \
NdisInterlockedIncrement(&_pLargeInt->HighPart); \
} \
}
#define ASSERT_AT_PASSIVE() \
ASSERT(KeGetCurrentIrql() == PASSIVE_LEVEL)
//
// Simple Mutual Exclusion constructs used in preference to
// using KeXXX calls since we don't have Mutex calls in NDIS.
// These can only be called at passive IRQL.
//
typedef struct _MUX_MUTEX
{
ULONG Counter;
ULONG ModuleAndLine; // useful for debugging
} MUX_MUTEX, *PMUX_MUTEX;
#define MUX_INIT_MUTEX(_pMutex) \
{ \
(_pMutex)->Counter = 0; \
(_pMutex)->ModuleAndLine = 0; \
}
#define MUX_ACQUIRE_MUTEX(_pMutex) \
{ \
while (NdisInterlockedIncrement(&((_pMutex)->Counter)) != 1)\
{ \
NdisInterlockedDecrement(&((_pMutex)->Counter)); \
NdisMSleep(10000); \
} \
(_pMutex)->ModuleAndLine = (MODULE_NUMBER << 16) | __LINE__;\
}
#define MUX_RELEASE_MUTEX(_pMutex) \
{ \
(_pMutex)->ModuleAndLine = 0; \
NdisInterlockedDecrement(&(_pMutex)->Counter); \
}
//
// Global variables
//
extern NDIS_HANDLE ProtHandle, DriverHandle;
extern NDIS_MEDIUM MediumArray[1];
extern NDIS_SPIN_LOCK GlobalLock;
extern MUX_MUTEX GlobalMutex;
extern LIST_ENTRY AdapterList;
extern ULONG NextVElanNumber;
//
// Module numbers for debugging
//
#define MODULE_MUX 'X'
#define MODULE_PROT 'P'
#define MODULE_MINI 'M'
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