NetExtensionGetPacketRscTimestamp - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// rsc.h
NET_PACKET_RSC_TIMESTAMP * NetExtensionGetPacketRscTimestamp(
NET_EXTENSION const *Extension,
UINT32 Index
);
View the official Windows Driver Kit DDI referenceNo description available.
The NetExtensionGetPacketRscTimestamp function retrieves receive segment coalescence (RSC) timestamp information for a packet.
ExtensionA pointer to a NET_EXTENSION structure that describes the RSC timestamp extension information for this receive queue.
IndexThe index in the packet ring for the target NET_PACKET.
Returns a pointer to a NET_PACKET_RSC_TIMESTAMP structure that holds the RSC 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 RSC offset from the queue context to pass to NetExtensionGetPacketRscTimestamp.
This function is a wrapper function around NetExtensionGetData.
Packet descriptors and extensions