[MirageOS-devel] TCP checksum offload with Xen

[Thomas Leonard <talex5@xxxxxxxxx>]

I see Xen allows guests to indicate that the packet checksum is blank
(XEN_NETTXF_csum_blank). Then dom0 will either fill it in itself or
get the NIC to do it. How can I use this with Mirage?

I tried using ~flags:3 (Checksum_blank + Data_validated) in
mirage-net-xen's netif.ml, but I don't see any TCP packets at all this
way, even when the checksum is actually still being set. DHCP still
works, though.

Does anyone know how this is supposed to work?


-- 
Dr Thomas Leonard        http://0install.net/
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