litmus-rt.git/net/switchdev, branch test

rename RTNH_F_EXTERNAL to RTNH_F_OFFLOAD

2015-05-15T02:45:39+00:00

RTNH_F_EXTERNAL today is printed as "offload" in iproute2 output.

This patch renames the flag to be consistent with what the user sees.

Signed-off-by: Roopa Prabhu 
Signed-off-by: David S. Miller

switchdev: fix stp update API to work with layered netdevices

2015-03-23T20:44:56+00:00

make it same as the netdev_switch_port_bridge_setlink/dellink
api (ie traverse lowerdevs to get to the switch port).

removes "WARN_ON(!ops->ndo_switch_parent_id_get)" because
direct bridge ports can be stacked netdevices (like bonds
and team of switch ports) which may not implement this ndo.

v2 to v3:
	- remove changes to bond and team. Bring back the
	transparently following lowerdevs like i initially
	had for setlink/getlink
	(http://www.spinics.net/lists/netdev/msg313436.html)
	dave and scott feldman also seem to prefer it be that
	way and move to non-transparent way of doing things
	if we see a problem down the lane.

v3 to v4:
	- fix ret initialization

v4 to v5:
	- return err on first failure (scott feldman)

v5 to v6:
	- change variable name (err) and initialize to
	-EOPNOTSUPP (scott feldman).

Signed-off-by: Roopa Prabhu 
Acked-by: Scott Feldman 
Acked-by: Jiri Pirko 
Signed-off-by: David S. Miller

switchdev: use new swdev ops

2015-03-16T04:14:43+00:00

Move swdev wrappers over to new swdev ops (from previous ndo ops).  No
functional changes to the implementation.

Signed-off-by: Scott Feldman 

rocker: move to new swdev ops

Signed-off-by: Scott Feldman 

dsa: move to new swdev ops

Signed-off-by: Scott Feldman 
Signed-off-by: David S. Miller

switchdev: correct spelling of notifier in comments

2015-03-12T03:06:39+00:00

Signed-off-by: Simon Horman 
Signed-off-by: David S. Miller

switchdev: add netlink flags to IPv4 FIB add op

2015-03-10T03:56:52+00:00

Pass in the netlink flags (NLM_F_*) into switchdev driver for IPv4 FIB add op
to allow driver to 1) optimize hardware updates, 2) handle ip route prepend
and append commands correctly.

Suggested-by: Jamal Hadi Salim 
Suggested-by: Roopa Prabhu 
Signed-off-by: Scott Feldman 
Reviewed-by: Simon Horman 
Acked-by: Roopa Prabhu 
Signed-off-by: David S. Miller

switchdev: use gpl variant of symbol export

2015-03-09T19:37:39+00:00

Signed-off-by: Jiri Pirko 
Acked-by: Scott Feldman 
Acked-by: Andy Gospodarek 
Acked-by: Florian Fainelli 
Signed-off-by: David S. Miller

switchdev: fix CONFIG_IP_MULTIPLE_TABLES compile issue

2015-03-06T17:43:54+00:00

Signed-off-by: Scott Feldman 
Acked-by: Jiri Pirko 
Signed-off-by: David S. Miller

fib: hook IPv4 fib for hardware offload

2015-03-06T05:24:58+00:00

Call into the switchdev driver any time an IPv4 fib entry is
added/modified/deleted from the kernel's FIB.  The switchdev driver may or
may not install the route to the offload device.  In the case where the
driver tries to install the route and something goes wrong (device's routing
table is full, etc), then all of the offloaded routes will be flushed from the
device, route forwarding falls back to the kernel, and no more routes are
offloading.

We can refine this logic later.  For now, use the simplist model of offloading
routes up to the point of failure, and then on failure, undo everything and
mark IPv4 offloading disabled.

Signed-off-by: Scott Feldman 
Signed-off-by: David S. Miller

switchdev: implement IPv4 fib ndo wrappers

2015-03-06T05:24:58+00:00

Flesh out ndo wrappers to call into device driver.  To call into device driver,
the wrapper must interate over route's nexthops to ensure all nexthop devs
belong to the same switch device.  Currently, there is no support for route's
nexthops spanning offloaded and non-offloaded devices, or spanning ports of
multiple offload devices.

Since switch device ports may be stacked under virtual interfaces (bonds and/or
bridges), and the route's nexthop may be on the virtual interface, the wrapper
will traverse the nexthop dev down to the base dev.  It's the base dev that's
passed to the switchdev driver's ndo ops.

Signed-off-by: Scott Feldman 
Signed-off-by: David S. Miller

switchdev: don't support custom ip rules, for now

2015-03-06T05:24:58+00:00

Keep switchdev FIB offload model simple for now and don't allow custom ip
rules.

Signed-off-by: Scott Feldman 
Signed-off-by: David S. Miller