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NdisQueryOffloadState function (ndischimney.h)

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[The TCP chimney offload feature is deprecated and should not be used.]

A protocol or intermediate driver calls the NdisQueryOffloadState function to query previously offloaded TCP chimney state objects.

Syntax

void NdisQueryOffloadState(
  [in] IN NDIS_HANDLE                       NdisBindingHandle,
  [in] IN PNDIS_PROTOCOL_OFFLOAD_BLOCK_LIST OffloadBlockList
);

Parameters

[in] NdisBindingHandle

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.

[in] OffloadBlockList

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.

Return value

None

Remarks

An intermediate driver calls the NdisQueryOffloadState 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 NdisQueryOffloadState function.

Requirements

Requirement Value
Target Platform Universal
Header ndischimney.h (include Ndischimney.h)

See also

MiniportQueryOffload

NDIS_MINIPORT_OFFLOAD_BLOCK_LIST NDIS_PROTOCOL_OFFLOAD_BLOCK_LIST NdisMQueryOffloadStateComplete

NdisOpenAdapterEx

ProtocolQueryOffloadComplete