NdisQueryMdlOffset macro
The NdisQueryMdlOffset macro retrieves the offset within a physical page at which a given MDL buffer begins and the length of the buffer.
Syntax
VOID NdisQueryMdlOffset(
_Mdl,
_Offset,
_Length
);
Parameters
_Mdl
A pointer to an MDL.
_Offset
A pointer to a caller-supplied variable in which this macro returns the zero-based byte offset within the physical page that contains the MDL-specified buffer.
_Length
A pointer to a caller-supplied variable in which this macro returns the length, in bytes, of the virtual address range that is specified by the MDL.
Return value
None
Remarks
The NdisQueryMdlOffset macro provides an MDL-based version of the NdisQueryBufferOffset function.
Requirements
Target platform |
Desktop |
Version |
Supported in NDIS 6.0 and later. |
Header |
Ndis.h (include Ndis.h) |
IRQL |
<= DISPATCH_LEVEL |
DDI compliance rules |
Irql_NetBuffer_Function |
See also
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