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Date:   Mon, 8 Aug 2022 14:27:51 +0200
From:   Guillaume Nault <gnault@redhat.com>
To:     Matthias May <matthias.may@westermo.com>
Cc:     netdev@vger.kernel.org, davem@davemloft.net,
        yoshfuji@linux-ipv6.org, dsahern@kernel.org, edumazet@google.com,
        kuba@kernel.org, pabeni@redhat.com, nicolas.dichtel@6wind.com,
        eyal.birger@gmail.com, linux-kernel@vger.kernel.org,
        jesse@nicira.com, pshelar@nicira.com, tgraf@suug.ch
Subject: Re: [PATCH v4 net] geneve: fix TOS inheriting for ipv4
Message-ID: <20220808122751.GB9123@pc-4.home>
References: <20220805190006.8078-1-matthias.may@westermo.com>
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On Fri, Aug 05, 2022 at 09:00:06PM +0200, Matthias May wrote:
> The current code retrieves the TOS field after the lookup
> on the ipv4 routing table. The routing process currently
> only allows routing based on the original 3 TOS bits, and
> not on the full 6 DSCP bits.
> As a result the retrieved TOS is cut to the 3 bits.
> However for inheriting purposes the full 6 bits should be used.
> 
> Extract the full 6 bits before the route lookup and use
> that instead of the cut off 3 TOS bits.

Acked-by: Guillaume Nault <gnault@redhat.com>