[Ecn-sane] [Cake] l4s kernel submission

[Toke Høiland-Jørgensen]

Dave Taht <dave.taht at gmail.com> writes:

> An open question for me:
>
> What happens when a GSO packet is marked? Do all the packets get the
> marking, or just the first?

When segmenting a GSO packet, the IP header is copied to all segments.
The code has grown quite complex over the years, but it's easier to see
in the original submission from 2006:

https://lore.kernel.org/all/20060622081400.GC22671@gondor.apana.org.au/

Which means all packets in a GSO segment will end up marked on the
wire...

-Toke