netdev - Re: [RFC net-next 0/2] net/sched: cls_flower, act

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Date:	Mon, 15 Aug 2016 13:24:36 +0300
From:	Shmulik Ladkani <shmulik.ladkani@...il.com>
To:	Jamal Hadi Salim <jhs@...atatu.com>
Cc:	Amir Vadai <amir@...ai.me>, Jiri Pirko <jiri@...nulli.us>,
	Cong Wang <xiyou.wangcong@...il.com>,
	John Fastabend <john.fastabend@...il.com>,
	Jiri Pirko <jiri@...lanox.com>,
	Linux Kernel Network Developers <netdev@...r.kernel.org>,
	Or Gerlitz <ogerlitz@...lanox.com>,
	Hadar Har-Zion <hadarh@...lanox.com>,
	Oded Shanoon <odeds@...lanox.com>,
	Amir Vadai <amirva@...lanox.com>
Subject: Re: [RFC net-next 0/2] net/sched: cls_flower, act_mirred: VXLAN
 redirect using TC

On Mon, 15 Aug 2016 06:08:10 -0400, jhs@...atatu.com wrote:
> On 16-08-15 05:08 AM, Amir Vadai wrote:
> > # ENCAP rule
> > tc filter add dev $ETH protocol ip parent ffff: prio 10 \
> > 		flower ip_proto 1 \
> > 		action set_tunnel_key src_ip 11.11.0.1 dst_ip 11.11.0.2 key_id 11 dst_port 4789 \
> > 		action mirred egress redirect dev $VXLAN
> 
> Assuming $VXLAN is actually not a linux netdev of type vxlan?
> then the action does vxlan encap redirect sends it to the $VXLAN
> dev with encapsulation in place.

I assume Amir refers to vxlan netdev in VXLAN_F_COLLECT_METADATA mode,
using the tun_info metadata found in skb_metadata_dst.
The action is supposed to assign the tun metadata.