IFNET_TSO_IPV4

Declaration

IFNET_TSO_IPV4 = 0x00200000

Discussion

Hardware supports IPv4 TCP Segment Offloading. If the Interface driver sets this flag, TCP will send larger frames (up to 64KB) as one frame to the adapter which will perform the final packetization. The maximum TSO segment supported by the interface can be set with "ifnet_set_tso_mtu". To retreive the real MTU for the TCP connection the function "mbuf_get_tso_requested" is used by the driver. Note that if TSO is active, all the packets will be flagged for TSO, not just large packets.