int mlxsw_sp_flow_counter_get(struct mlxsw_sp *mlxsw_sp,
			      unsigned int counter_index, u64 *packets,
			      u64 *bytes)
int mlxsw_sp_flow_counter_get(struct mlxsw_sp *mlxsw_sp,
			      unsigned int counter_index, bool clear,
			      u64 *packets, u64 *bytes)