Re: [PATCH net-next 4/4] net: Add Open vSwitch kernel components.

On Tue, 2011-11-22 at 18:30 -0800, John Fastabend wrote:

He is pushing and popping entire tags off 802.1Q for now but
you can easily imagine MPLS tags and all sorts of other things
people will _need_.

Lots of packet munging already happening with actions. 
We can pedit/nat/iptables/checksum/etc/. Works very well.

Do we want tc and likely the skbedit action to explode into a
packet mangling tool? 

skbedit is the wrong action to use. I would write one with
a cutnpaste of the code they have to do vlan manipulation.

Would it make sense to plug into ebtables
perhaps with a new family, NFPROTO_OPENFLOW or even on the
existing NFPROTO_BRIDGE.

There is _nothing_ that openflow needs that cant be done
in classifier-action piece.
A good number of the actions they need exist already. 

Although doing it with classifiers and more actions would flush
out that TODO in act_mirred, and get us an mq_ingress among
other things.

The packet redirect to user space is achieveable in many other
ways, thats why it was not added.

cheers,
jamal