net/mlx5: fs, expose flow table ID to users

Expose the flow table ID to users. This will be used by downstream
patches to allow creating steering rules that point to a flow table ID.
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/fs_core.c

@@ -1195,6 +1195,12 @@ struct mlx5_flow_table *mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
 }
 EXPORT_SYMBOL(mlx5_create_flow_table);
 
+u32 mlx5_flow_table_id(struct mlx5_flow_table *ft)
+{
+	return ft->id;
+}
+EXPORT_SYMBOL(mlx5_flow_table_id);
+
 struct mlx5_flow_table *
 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
 			     struct mlx5_flow_table_attr *ft_attr, u16 vport)

include/linux/mlx5/fs.h

@@ -315,4 +315,5 @@ struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
 void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
 				  struct mlx5_pkt_reformat *reformat);
 
+u32 mlx5_flow_table_id(struct mlx5_flow_table *ft);
 #endif