Re: [PATCH net-next 4/4] net/sched: act_mirred: Implement ingress actions

On Thu, Sep 22, 2016 at 6:21 AM, Shmulik Ladkani
[off-list ref] wrote:

From: Shmulik Ladkani <redacted>

Up until now, 'action mirred' supported only egress actions (either
TCA_EGRESS_REDIR or TCA_EGRESS_MIRROR).

This patch implements the corresponding ingress actions
TCA_INGRESS_REDIR and TCA_INGRESS_MIRROR.

This allows attaching filters whose target is to hand matching skbs into
the rx processing of a specified device.

I like this idea, this idea actually came to my mind when we
tried to redirect packets from eth0 to veth device in containers.
I remember I already brought this up to Jamal before (either personally
or publicly), but I forgot why I stopped.

This would reduce some latency for our Mesos containers, we
would just skip one veth TX in our scenario.