net: switchdev: Add PORT_PRE_BRIDGE_FLAGS

In preparation for removing switchdev_port_attr_get(), introduce
PORT_PRE_BRIDGE_FLAGS which will be called through
switchdev_port_attr_set(), in the caller's context (possibly atomic) and
which must be checked by the switchdev driver in order to return whether
the operation is supported or not.

This is entirely analoguous to how the BRIDGE_FLAGS_SUPPORT works,
except it goes through a set() instead of get().

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index 5e87b54c5dc51a16a978281580f51ca572d3c81b..de72b0a3867f90b34145fd83543db3d000fb1470 100644 (file)
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -46,6 +46,7 @@ enum switchdev_attr_id {
        SWITCHDEV_ATTR_ID_PORT_STP_STATE,
        SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
        SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT,
+       SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS,
        SWITCHDEV_ATTR_ID_PORT_MROUTER,
        SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
        SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING,
@@ -61,7 +62,7 @@ struct switchdev_attr {
        void (*complete)(struct net_device *dev, int err, void *priv);
        union {
                u8 stp_state;                           /* PORT_STP_STATE */
-               unsigned long brport_flags;             /* PORT_BRIDGE_FLAGS */
+               unsigned long brport_flags;             /* PORT_{PRE}_BRIDGE_FLAGS */
                unsigned long brport_flags_support;     /* PORT_BRIDGE_FLAGS_SUPPORT */
                bool mrouter;                           /* PORT_MROUTER */
                clock_t ageing_time;                    /* BRIDGE_AGEING_TIME */