From: Ido Schimmel <ido...@mellanox.com>
We hold a reference count on the number of ports member in the
VLAN-aware bridge, as we only support one.
Instead of always incrementing / decrementing the reference count after
joining / leaving the bridge, simply do this accounting in the join /
leave functions.
Signed-off-by: Ido Schimmel <ido...@mellanox.com>
Signed-off-by: Jiri Pirko <j...@mellanox.com>
---
drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 58 +++++++++++++-------------
1 file changed, 30 insertions(+), 28 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index cd85316..b999802 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -2651,7 +2651,28 @@ static bool mlxsw_sp_port_dev_check(const struct
net_device *dev)
return dev->netdev_ops == &mlxsw_sp_port_netdev_ops;
}
-static int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port)
+static bool mlxsw_sp_master_bridge_check(struct mlxsw_sp *mlxsw_sp,
+ struct net_device *br_dev)
+{
+ return !mlxsw_sp->master_bridge.dev ||
+ mlxsw_sp->master_bridge.dev == br_dev;
+}
+
+static void mlxsw_sp_master_bridge_inc(struct mlxsw_sp *mlxsw_sp,
+ struct net_device *br_dev)
+{
+ mlxsw_sp->master_bridge.dev = br_dev;
+ mlxsw_sp->master_bridge.ref_count++;
+}
+
+static void mlxsw_sp_master_bridge_dec(struct mlxsw_sp *mlxsw_sp)
+{
+ if (--mlxsw_sp->master_bridge.ref_count == 0)
+ mlxsw_sp->master_bridge.dev = NULL;
+}
+
+static int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port,
+ struct net_device *br_dev)
{
struct net_device *dev = mlxsw_sp_port->dev;
int err;
@@ -2665,6 +2686,8 @@ static int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port
*mlxsw_sp_port)
if (err)
return err;
+ mlxsw_sp_master_bridge_inc(mlxsw_sp_port->mlxsw_sp, br_dev);
+
mlxsw_sp_port->learning = 1;
mlxsw_sp_port->learning_sync = 1;
mlxsw_sp_port->uc_flood = 1;
@@ -2683,6 +2706,8 @@ static void mlxsw_sp_port_bridge_leave(struct
mlxsw_sp_port *mlxsw_sp_port,
mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
+ mlxsw_sp_master_bridge_dec(mlxsw_sp_port->mlxsw_sp);
+
mlxsw_sp_port->learning = 0;
mlxsw_sp_port->learning_sync = 0;
mlxsw_sp_port->uc_flood = 0;
@@ -2694,26 +2719,6 @@ static void mlxsw_sp_port_bridge_leave(struct
mlxsw_sp_port *mlxsw_sp_port,
mlxsw_sp_port_add_vid(dev, 0, 1);
}
-static bool mlxsw_sp_master_bridge_check(struct mlxsw_sp *mlxsw_sp,
- struct net_device *br_dev)
-{
- return !mlxsw_sp->master_bridge.dev ||
- mlxsw_sp->master_bridge.dev == br_dev;
-}
-
-static void mlxsw_sp_master_bridge_inc(struct mlxsw_sp *mlxsw_sp,
- struct net_device *br_dev)
-{
- mlxsw_sp->master_bridge.dev = br_dev;
- mlxsw_sp->master_bridge.ref_count++;
-}
-
-static void mlxsw_sp_master_bridge_dec(struct mlxsw_sp *mlxsw_sp)
-{
- if (--mlxsw_sp->master_bridge.ref_count == 0)
- mlxsw_sp->master_bridge.dev = NULL;
-}
-
static int mlxsw_sp_lag_create(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
{
char sldr_pl[MLXSW_REG_SLDR_LEN];
@@ -2910,7 +2915,6 @@ static void mlxsw_sp_port_lag_leave(struct mlxsw_sp_port
*mlxsw_sp_port,
if (mlxsw_sp_port->bridged) {
mlxsw_sp_port_active_vlans_del(mlxsw_sp_port);
mlxsw_sp_port_bridge_leave(mlxsw_sp_port, false);
- mlxsw_sp_master_bridge_dec(mlxsw_sp);
}
if (lag->ref_count == 1) {
@@ -3049,13 +3053,11 @@ static int mlxsw_sp_netdevice_port_upper_event(struct
net_device *dev,
mlxsw_sp_port_vlan_unlink(mlxsw_sp_port,
upper_dev);
} else if (netif_is_bridge_master(upper_dev)) {
- if (info->linking) {
- err = mlxsw_sp_port_bridge_join(mlxsw_sp_port);
- mlxsw_sp_master_bridge_inc(mlxsw_sp, upper_dev);
- } else {
+ if (info->linking)
+ err = mlxsw_sp_port_bridge_join(mlxsw_sp_port,
+ upper_dev);
+ else
mlxsw_sp_port_bridge_leave(mlxsw_sp_port, true);
- mlxsw_sp_master_bridge_dec(mlxsw_sp);
- }
} else if (netif_is_lag_master(upper_dev)) {
if (info->linking)
err = mlxsw_sp_port_lag_join(mlxsw_sp_port,
--
2.5.5
