netdev - Re: [PATCH net-next] lwtunnel: add support for multiple geneve opts

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Message-Id: <20191120.101553.1725688714844743661.davem@davemloft.net>
Date:   Wed, 20 Nov 2019 10:15:53 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     lucien.xin@...il.com
Cc:     netdev@...r.kernel.org, simon.horman@...ronome.com
Subject: Re: [PATCH net-next] lwtunnel: add support for multiple geneve opts

From: Xin Long <lucien.xin@...il.com>
Date: Tue, 19 Nov 2019 17:39:11 +0800

> geneve RFC (draft-ietf-nvo3-geneve-14) allows a geneve packet to carry
> multiple geneve opts, so it's necessary for lwtunnel to support adding
> multiple geneve opts in one lwtunnel route. But vxlan and erspan opts
> are still only allowed to add one option.
> 
> With this patch, iproute2 could make it like:
> 
>   # ip r a 1.1.1.0/24 encap ip id 1 geneve_opts 0:0:12121212,1:2:12121212 \
>     dst 10.1.0.2 dev geneve1
> 
>   # ip r a 1.1.1.0/24 encap ip id 1 vxlan_opts 456 \
>     dst 10.1.0.2 dev erspan1
> 
>   # ip r a 1.1.1.0/24 encap ip id 1 erspan_opts 1:123:0:0 \
>     dst 10.1.0.2 dev erspan1
> 
> Which are pretty much like cls_flower and act_tunnel_key.
> 
> Signed-off-by: Xin Long <lucien.xin@...il.com>

Applied, thanks Xin.