mlxsw: Add struct mlxsw_sp_switchdev_ops per ASIC

A subsequent patch will need to implement different set of operations
when a port joins / leaves an 802.1ad bridge, based on the ASIC type.

Prepare for this change by allowing to initialize the bridge module
based on the ASIC type via 'struct mlxsw_sp_switchdev_ops'.
Signed-off-by: NAmit Cohen <amcohen@nvidia.com>
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlxsw/spectrum.c

@@ -2925,6 +2925,7 @@ static int mlxsw_sp1_init(struct mlxsw_core *mlxsw_core,
 {
 	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
 
+	mlxsw_sp->switchdev_ops = &mlxsw_sp1_switchdev_ops;
 	mlxsw_sp->kvdl_ops = &mlxsw_sp1_kvdl_ops;
 	mlxsw_sp->afa_ops = &mlxsw_sp1_act_afa_ops;
 	mlxsw_sp->afk_ops = &mlxsw_sp1_afk_ops;
@@ -2955,6 +2956,7 @@ static int mlxsw_sp2_init(struct mlxsw_core *mlxsw_core,
 {
 	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
 
+	mlxsw_sp->switchdev_ops = &mlxsw_sp2_switchdev_ops;
 	mlxsw_sp->kvdl_ops = &mlxsw_sp2_kvdl_ops;
 	mlxsw_sp->afa_ops = &mlxsw_sp2_act_afa_ops;
 	mlxsw_sp->afk_ops = &mlxsw_sp2_afk_ops;
@@ -2983,6 +2985,7 @@ static int mlxsw_sp3_init(struct mlxsw_core *mlxsw_core,
 {
 	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
 
+	mlxsw_sp->switchdev_ops = &mlxsw_sp2_switchdev_ops;
 	mlxsw_sp->kvdl_ops = &mlxsw_sp2_kvdl_ops;
 	mlxsw_sp->afa_ops = &mlxsw_sp2_act_afa_ops;
 	mlxsw_sp->afk_ops = &mlxsw_sp2_afk_ops;

drivers/net/ethernet/mellanox/mlxsw/spectrum.h

@@ -92,6 +92,11 @@ struct mlxsw_sp_rif_ops;
 extern const struct mlxsw_sp_rif_ops *mlxsw_sp1_rif_ops_arr[];
 extern const struct mlxsw_sp_rif_ops *mlxsw_sp2_rif_ops_arr[];
 
+struct mlxsw_sp_switchdev_ops;
+
+extern const struct mlxsw_sp_switchdev_ops mlxsw_sp1_switchdev_ops;
+extern const struct mlxsw_sp_switchdev_ops mlxsw_sp2_switchdev_ops;
+
 enum mlxsw_sp_fid_type {
 	MLXSW_SP_FID_TYPE_8021Q,
 	MLXSW_SP_FID_TYPE_8021D,
@@ -167,6 +172,7 @@ struct mlxsw_sp {
 	struct mlxsw_sp_counter_pool *counter_pool;
 	struct mlxsw_sp_span *span;
 	struct mlxsw_sp_trap *trap;
+	const struct mlxsw_sp_switchdev_ops *switchdev_ops;
 	const struct mlxsw_sp_kvdl_ops *kvdl_ops;
 	const struct mlxsw_afa_ops *afa_ops;
 	const struct mlxsw_afk_ops *afk_ops;

drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c

@@ -98,6 +98,10 @@ struct mlxsw_sp_bridge_ops {
 		       const struct mlxsw_sp_fid *fid);
 };
 
+struct mlxsw_sp_switchdev_ops {
+	void (*init)(struct mlxsw_sp *mlxsw_sp);
+};
+
 static int
 mlxsw_sp_bridge_port_fdb_flush(struct mlxsw_sp *mlxsw_sp,
 			       struct mlxsw_sp_bridge_port *bridge_port,
@@ -3535,6 +3539,22 @@ static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp)
 	unregister_switchdev_notifier(&mlxsw_sp_switchdev_notifier);
 }
 
+static void mlxsw_sp1_switchdev_init(struct mlxsw_sp *mlxsw_sp)
+{
+}
+
+const struct mlxsw_sp_switchdev_ops mlxsw_sp1_switchdev_ops = {
+	.init	= mlxsw_sp1_switchdev_init,
+};
+
+static void mlxsw_sp2_switchdev_init(struct mlxsw_sp *mlxsw_sp)
+{
+}
+
+const struct mlxsw_sp_switchdev_ops mlxsw_sp2_switchdev_ops = {
+	.init	= mlxsw_sp2_switchdev_init,
+};
+
 int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp)
 {
 	struct mlxsw_sp_bridge *bridge;
@@ -3551,6 +3571,8 @@ int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp)
 	bridge->bridge_8021d_ops = &mlxsw_sp_bridge_8021d_ops;
 	bridge->bridge_8021ad_ops = &mlxsw_sp_bridge_8021ad_ops;
 
+	mlxsw_sp->switchdev_ops->init(mlxsw_sp);
+
 	return mlxsw_sp_fdb_init(mlxsw_sp);
 }