A protocol or intermediate driver calls the NdisQueryOffload function to query previously offloaded TCP chimney state objects.
VOID NdisQueryOffload( _In_ NDIS_HANDLE NdisBindingHandle, _In_ PNDIS_PROTOCOL_OFFLOAD_BLOCK_LIST OffloadBlockList );
- NdisBindingHandle [in]
The handle that NDIS provided at the NdisBindingHandle parameter of NdisOpenAdapterEx. This handle identifies the binding between the caller and the underlying intermediate driver or offload target.
- OffloadBlockList [in]
A pointer to an NDIS_PROTOCOL_OFFLOAD_BLOCK_LIST structure that can be a stand-alone structure or the root of a linked list of such structures. These structures identify the offloaded state objects that are being queried.
An intermediate driver calls the NdisQueryOffload function to propagate a query offload operation that was initiated by the host stack. For more information, see Propagating State-Manipulation Operations.
From the NDIS_MINIPORT_OFFLOAD_BLOCK_LIST structure that was passed to its MiniportQueryOffload function, the intermediate driver constructs an NDIS_PROTOCOL_OFFLOAD_BLOCK_LIST structure. For more information, see Reusing an NDIS_MINIPORT_OFFLOAD_BLOCK_LIST Structure. The intermediate driver passes a pointer (the OffloadBlockList parameter) to this NDIS_PROTOCOL_OFFLOAD_BLOCK_LIST structure when calling the NdisQueryOffload function.