NetExtensionGetPacketGso function (gso.h)
The NetExtensionGetPacketGso function retrieves Generic Segmentation Offload (GSO) information for a packet.
Syntax
EXTERN_C_START NET_PACKET_GSO * NetExtensionGetPacketGso(
NET_EXTENSION const *Extension,
UINT32 Index
);
Parameters
Extension
A pointer to a NET_EXTENSION structure that describes the GSO extension information for this packet queue.
Index
The index in the packet ring for the target NET_PACKET.
Return value
Returns a pointer to a NET_PACKET_GSO structure that holds the GSO information for this packet.
Remarks
NIC client drivers typically query offsets for packet extensions during datapath queue creation, then store them in their queue context space so they don't have to query them too often. For an example of this, see Transmit and receive queues. Clients can retrieve the GSO offset from the queue context to pass to NetExtensionGetPacketGso.
This function is a wrapper function around NetExtensionGetData.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 11 |
| Minimum supported server | Windows Server 2022 |
| Minimum UMDF version | 2.33 |
| Header | gso.h (include netadaptercx.h) |
See also
Generic Segmentation Offload (GSO)