NdisCreateLookaheadBufferFromSharedMemory (Windows CE 5.0)

Windows CE 5.0
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This function returns the virtual address of a buffer within a block of memory shared with a bus master DMA NIC.

VOID teLookaheadBufferFromSharedMemory(
  PVOID pSharedMemory,
  UINT LookaheadLength,
  PVOID* pLookaheadBuffer
);

Parameters

pSharedMemory
[in] Specifies the base address of the shared memory range containing the data for the look-ahead buffer.
LookaheadLength
[in] Specifies the length in bytes for the lookahead buffer.
pLookaheadBuffer
[out] Points to a caller-supplied variable in which this function returns the virtual address of the lookahead buffer.

Return Values

None.

Remarks

NdisCreateLookaheadBufferFromSharedMemory provides a lookahead buffer that is a virtual memory copy of shared memory for miniport receive indications. To bound protocol drivers, such a lookahead buffer represents a read-only version of the shared memory.

This function accommodates system architectures that do not allow the NIC driver to read shared memory on a network interface card directly.

Requirements

OS Versions: Windows CE .NET 4.0 and later.
Header: Ndis.h.
Link Library: Ndis.lib

See Also

NdisDestroyLookaheadBufferFromSharedMemory | NdisMEthIndicateReceive | NdisMTrIndicateReceive | NdisMWanIndicateReceive


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