NetExtensionGetPacketGso - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// gso.h
EXTERN_C_START NET_PACKET_GSO * NetExtensionGetPacketGso(
NET_EXTENSION const *Extension,
UINT32 Index
);
View the official Windows Driver Kit DDI referenceNo description available.
The NetExtensionGetPacketGso function retrieves Generic Segmentation Offload (GSO) information for a packet.
ExtensionA pointer to a NET_EXTENSION structure that describes the GSO extension information for this packet queue.
IndexThe index in the packet ring for the target NET_PACKET.
Returns a pointer to a NET_PACKET_GSO structure that holds the GSO information for this packet.
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.
Generic Segmentation Offload (GSO)
Packet descriptors and extensions