net: introduce generic switch devices support

The goal of this is to provide a possibility to support various switch
chips. Drivers should implement relevant ndos to do so. Now there is
only one ndo defined:
- for getting physical switch id is in place.

Note that user can use random port netdevice to access the switch.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Reviewed-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 13 insertions, 0 deletions

diff --git a/net/switchdev/Kconfig b/net/switchdev/Kconfig
new file mode 100644
index 000000000000..155754588fd6
--- /dev/null
+++ b/net/switchdev/Kconfig
@@ -0,0 +1,13 @@
+#
+# Configuration for Switch device support
+#
+
+config NET_SWITCHDEV
+        boolean "Switch (and switch-ish) device support (EXPERIMENTAL)"
+        depends on INET
+        ---help---
+          This module provides glue between core networking code and device
+          drivers in order to support hardware switch chips in very generic
+          meaning of the word "switch". This include devices supporting L2/L3 but
+          also various flow offloading chips, including switches embedded into
+          SR-IOV NICs.