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net: switchdev: Add support for querying supported bridge flags by hardware

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This is done as a preparation stage before setting the bridge port flags
from the bridge code. Currently the device can be queried for the bridge
flags state, but the querier cannot distinguish if the flag is disabled
or if it is not supported at all. Thus, add new attr and a bit-mask which
include information regarding the support on a per-flag basis.

Drivers that support bridge offload but not support bridge flags should
return zeroed bitmask.

Signed-off-by: Arkadi Sharshevsky <[email protected]>
Reviewed-by: Ido Schimmel <[email protected]>
Reviewed-by: Ivan Vecera <[email protected]>
Signed-off-by: Jiri Pirko <[email protected]>
Reviewed-by: Ivan Vecera <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Arkadi Sharshevsky authored and David S. Miller committed 2017-06-08 14:16:23 -04:00
1 parent 6c8607eb34
commit dc0ecabd62
1 file changed
+2
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include/net/switchdev.h
+2
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@@ -46,6 +46,7 @@ enum switchdev_attr_id {
SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
SWITCHDEV_ATTR_ID_PORT_STP_STATE,
SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT,
SWITCHDEV_ATTR_ID_PORT_MROUTER,
SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING,
@@ -62,6 +63,7 @@ struct switchdev_attr {
struct netdev_phys_item_id ppid; /* PORT_PARENT_ID */
u8 stp_state; /* PORT_STP_STATE */
unsigned long brport_flags; /* PORT_BRIDGE_FLAGS */
unsigned long brport_flags_support; /* PORT_BRIDGE_FLAGS_SUPPORT */
bool mrouter; /* PORT_MROUTER */
clock_t ageing_time; /* BRIDGE_AGEING_TIME */
bool vlan_filtering; /* BRIDGE_VLAN_FILTERING */