netdev - Re: [PATCHv2 net-next] openvswitch: Introduce ovs_tunnel_route

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Message-ID: <CALnjE+rELPHEMmjwnwk6w0CDx5L9s9oCx1v8y1rZrHRvyVcC3A@mail.gmail.com>
Date:	Mon, 12 Jan 2015 21:52:38 -0800
From:	Pravin Shelar <pshelar@...ira.com>
To:	Fan Du <fan.du@...el.com>
Cc:	"dev@...nvswitch.org" <dev@...nvswitch.org>,
	netdev <netdev@...r.kernel.org>, fengyuleidian0615@...il.com
Subject: Re: [PATCHv2 net-next] openvswitch: Introduce ovs_tunnel_route_lookup

On Mon, Jan 12, 2015 at 6:41 PM, Fan Du <fan.du@...el.com> wrote:
> Introduce ovs_tunnel_route_lookup to consolidate route lookup
> shared by vxlan, gre, and geneve ports.
>
> Signed-off-by: Fan Du <fan.du@...el.com>
> ---
> Chnage log:
> v2:
>   - Use inline instead of function call
>   - Rename vport_route_lookup to ovs_tunnel_route_lookup
> ---
>  net/openvswitch/vport-geneve.c |   11 +----------
>  net/openvswitch/vport-gre.c    |   10 +---------
>  net/openvswitch/vport-vxlan.c  |   10 +---------
>  net/openvswitch/vport.h        |   18 ++++++++++++++++++
>  4 files changed, 21 insertions(+), 28 deletions(-)
>
....

> +static inline struct rtable *ovs_tunnel_route_lookup(struct net *net,
> +                                                    struct ovs_key_ipv4_tunnel *key,
> +                                                    struct sk_buff *skb,
> +                                                    struct flowi4 *fl,
> +                                                    u8 protocol)
> +{
> +       struct rtable *rt;
> +
> +       memset(fl, 0, sizeof(*fl));
> +       fl->daddr = key->ipv4_dst;
> +       fl->saddr = key->ipv4_src;
> +       fl->flowi4_tos = RT_TOS(key->ipv4_tos);
> +       fl->flowi4_mark = skb->mark;
> +       fl->flowi4_proto = protocol;
> +
> +       rt = ip_route_output_key(net, fl);
> +       return rt;
> +}

ovs_tunnel_get_egress_info() is also directly calling ip_route_output_key()

>  #endif /* vport.h */
> --
> 1.7.1
>
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