Propagating State-Manipulation Operations

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

This section describes how an intermediate driver propagates a state-manipulation operation that was initiated by the host stack and the completion of such an operation by an underlying offload target.

State-manipulation operations include:

• Initiating the offload of a state object.

• Invalidating an offloaded state object.

• Querying an offloaded state object.

• Updating an offloaded state object.

• Terminating the offload of a state object.

This section includes:

• Propagating a State-Manipulation Operation

• Propagating the Completion of a State-Manipulation Operation

• Comparison of Offload Block List Types

• Reusing an NDIS_MINIPORT_OFFLOAD_BLOCK_LIST Structure

• Reusing an NDIS_PROTOCOL_OFFLOAD_BLOCK_LIST Structure