> On Sep 1, 2015, at 8:17 PM, Tom Herbert <t...@herbertland.com> wrote: > > I suspect this is not UDP-encapsulation specific, will it work with > TCP/IP/IP, TCP/IP/GRE etc.?
It could do more, but this is what has been tested up to this point. > Isn't there anyway the ixgbe could just be made to NETIF_HW_CSUM? That > would be so much more straightforward and support nearly all use cases > without needing to jump through all these hoops. Well, the description says: --- Note: NETIF_F_HW_CSUM is a superset of NETIF_F_IP_CSUM + NETIF_F_IPV6_CSUM. It means that device can fill TCP/UDP-like checksum anywhere in the packets whatever headers there might be. --- The device can't do whatever, wherever. There is always a limit to the offset to the inner headers that can be handled, for instance. -- Mark Rustad, Networking Division, Intel Corporation
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