mlxsw: spectrum_fid: Add profile_id to flood profile

In the CFF mode, flood profiles are identified by a unique numerical
identifier. This is used for configuration of FIDs and for configuration of
traffic-type to PGT offset rules. In both cases, the numerical identifier
serves as a handle for the flood profile. Add the identifier to the flood
profile structure.

There is currently only one flood profile in use explicitly, the one used
for all bridging. Eventually three will be necessary in total: one for
bridges, one for rFIDs, one for NVE underlay. A total of four profiles
are supported by the HW. Start allocating at 1, because 0 is currently
used for underlay NVE flood.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/19ea9c35ba8b522fa5f7eb6fd7bc1b68f0f66b41.1701183892.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: pmachata

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

@@ -113,9 +113,14 @@ struct mlxsw_sp_fid_ops {
 			      const struct mlxsw_sp_port *mlxsw_sp_port);
 };
 
+enum mlxsw_sp_fid_flood_profile_id {
+	MLXSW_SP_FID_FLOOD_PROFILE_ID_BRIDGE = 1,
+};
+
 struct mlxsw_sp_fid_flood_profile {
 	const struct mlxsw_sp_flood_table *flood_tables;
 	int nr_flood_tables;
+	const enum mlxsw_sp_fid_flood_profile_id profile_id; /* For CFF mode. */
 };
 
 struct mlxsw_sp_fid_family {
@@ -1188,6 +1193,7 @@ static const
 struct mlxsw_sp_fid_flood_profile mlxsw_sp_fid_8021d_flood_profile = {
 	.flood_tables		= mlxsw_sp_fid_8021d_flood_tables,
 	.nr_flood_tables	= ARRAY_SIZE(mlxsw_sp_fid_8021d_flood_tables),
+	.profile_id		= MLXSW_SP_FID_FLOOD_PROFILE_ID_BRIDGE,
 };
 
 static bool