netdev - Re: [PATCH v5 net-next 10/10] selftests: net: tests for add double tunneling GRO/GSO

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Message-ID: <87fr7yezcv.fsf@nvidia.com>
Date: Thu, 22 Jan 2026 11:05:13 +0100
From: Petr Machata <petrm@...dia.com>
To: Paolo Abeni <pabeni@...hat.com>
CC: <netdev@...r.kernel.org>, "David S. Miller" <davem@...emloft.net>, "Eric
 Dumazet" <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, "Simon
 Horman" <horms@...nel.org>, Donald Hunter <donald.hunter@...il.com>, "Andrew
 Lunn" <andrew+netdev@...n.ch>, Shuah Khan <shuah@...nel.org>, "Willem de
 Bruijn" <willemdebruijn.kernel@...il.com>, <sdf@...ichev.me>,
	<petrm@...dia.com>, <razor@...ckwall.org>, <idosch@...dia.com>
Subject: Re: [PATCH v5 net-next 10/10] selftests: net: tests for add double
 tunneling GRO/GSO


Paolo Abeni <pabeni@...hat.com> writes:

> Create a simple, netns-based topology with double, nested UDP tunnels and
> perform TSO transfers on top.
>
> Explicitly enable GSO and/or GRO and check the skb layout consistency with
> different configuration allowing (or not) GSO frames to be delivered on
> the other end.
>
> The trickest part is account in a robust way the aggregated/unaggregated
> packets with double encapsulation: use a classic bpf filter for it.
>
> Signed-off-by: Paolo Abeni <pabeni@...hat.com>

Reviewed-by: Petr Machata <petrm@...dia.com>