netdev - Re: [PATCHv2 nf-next 6/6] selftests: add a selftest for big tcp

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Message-ID: <c7766c78-8947-79ca-992d-fe5300774ff9@blackwall.org>
Date:   Wed, 8 Mar 2023 13:10:13 +0200
From:   Nikolay Aleksandrov <razor@...ckwall.org>
To:     Xin Long <lucien.xin@...il.com>, netfilter-devel@...r.kernel.org,
        network dev <netdev@...r.kernel.org>
Cc:     Pablo Neira Ayuso <pablo@...filter.org>,
        Jozsef Kadlecsik <kadlec@...filter.org>,
        Florian Westphal <fw@...len.de>, davem@...emloft.net,
        kuba@...nel.org, Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Roopa Prabhu <roopa@...dia.com>,
        Pravin B Shelar <pshelar@....org>,
        Aaron Conole <aconole@...hat.com>,
        Simon Horman <simon.horman@...igine.com>
Subject: Re: [PATCHv2 nf-next 6/6] selftests: add a selftest for big tcp

On 07/03/2023 23:31, Xin Long wrote:
> This test runs on the client-router-server topo, and monitors the traffic
> on the RX devices of router and server while sending BIG TCP packets with
> netperf from client to server. Meanwhile, it changes 'tso' on the TX devs
> and 'gro' on the RX devs. Then it checks if any BIG TCP packets appears
> on the RX devs with 'ip/ip6tables -m length ! --length 0:65535' for each
> case.
> 
> Note that we also add tc action ct in link1 ingress to cover the ipv6
> jumbo packets process in nf_ct_skb_network_trim() of nf_conntrack_ovs.
> 
> Signed-off-by: Xin Long <lucien.xin@...il.com>
> Reviewed-by: Aaron Conole <aconole@...hat.com>
> ---
>  tools/testing/selftests/net/Makefile   |   1 +
>  tools/testing/selftests/net/big_tcp.sh | 180 +++++++++++++++++++++++++
>  2 files changed, 181 insertions(+)
>  create mode 100755 tools/testing/selftests/net/big_tcp.sh

Reviewed-by: Nikolay Aleksandrov <razor@...ckwall.org>