Introduce devlink infrastructure

Introduce devlink infrastructure for drivers to register and expose to
userspace via generic Netlink interface.

There are two basic objects defined:
devlink - one instance for every "parent device", for example switch ASIC
devlink port - one instance for every physical port of the device.

This initial portion implements basic get/dump of objects to userspace.
Also, port splitter and port type setting is implemented.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 0 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 12b764f4c93c..e45682745263 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3499,6 +3499,14 @@ F:	include/linux/device-mapper.h
 F:      include/linux/dm-*.h
 F:      include/uapi/linux/dm-*.h
 
+DEVLINK
+M:      Jiri Pirko <jiri@mellanox.com>
+L:      netdev@vger.kernel.org
+S:      Supported
+F:      net/core/devlink.c
+F:      include/net/devlink.h
+F:      include/uapi/linux/devlink.h
+
 DIALOG SEMICONDUCTOR DRIVERS
 M:      Support Opensource <support.opensource@diasemi.com>
 W:      http://www.dialog-semiconductor.com/products