tree 65f93e5606e22b0608db2b7beb87fce22089ad52
parent c1854ebc7f13b23c3d6a6e641a1a1db1116ca998
author Jamal Hadi Salim <hadi@cyberus.ca> 1136788465 -0800
committer David S. Miller <davem@sunset.davemloft.net> 1136844983 -0800

[NET]: Add IFB (Intermediate Functional Block) network device.

A new device to do intermidiate functional block in a system shared
manner.  To use the new functionality, you need to turn on
qos/classifier actions.

The new functionality can be grouped as:

1) qdiscs/policies that are per device as opposed to system wide.  ifb
allows for a device which can be redirected to thus providing an
impression of sharing.

2) Allows for queueing incoming traffic for shaping instead of
dropping.

Packets are redirected to this device using tc/action mirred redirect
construct. If they are sent to it by plain routing instead then they
will merely be dropped and the stats would indicate that.

Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>