netdev - [PATCH mlx5-next v1 05/15] net/mlx5: Break encap/decap into two separated flow table creation flags

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Date:   Tue, 28 Aug 2018 14:18:44 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Doug Ledford <dledford@...hat.com>,
        Jason Gunthorpe <jgg@...lanox.com>
Cc:     Leon Romanovsky <leonro@...lanox.com>,
        RDMA mailing list <linux-rdma@...r.kernel.org>,
        Ariel Levkovich <lariel@...lanox.com>,
        Mark Bloch <markb@...lanox.com>,
        Or Gerlitz <ogerlitz@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        linux-netdev <netdev@...r.kernel.org>
Subject: [PATCH mlx5-next v1 05/15] net/mlx5: Break encap/decap into two separated flow table creation flags

From: Mark Bloch <markb@...lanox.com>

Today we are able to attach encap and decap actions only to the FDB. In
preparation to enable those actions on the NIC flow tables, break the
single flag into two. Those flags control whatever a decap or encap
operations can be attached to the flow table created. For FDB, if
encapsulation is required, we set both of them.

Signed-off-by: Mark Bloch <markb@...lanox.com>
Reviewed-by: Saeed Mahameed <saeedm@...lanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@...lanox.com>
Signed-off-by: Leon Romanovsky <leonro@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c | 3 ++-
 drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c           | 7 ++++---
 include/linux/mlx5/fs.h                                    | 3 ++-
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index f72b5c9dcfe9..ff21807a0c4b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -529,7 +529,8 @@ static int esw_create_offloads_fast_fdb_table(struct mlx5_eswitch *esw)
 		esw_size >>= 1;
 
 	if (esw->offloads.encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE)
-		flags |= MLX5_FLOW_TABLE_TUNNEL_EN;
+		flags |= (MLX5_FLOW_TABLE_TUNNEL_EN_ENCAP |
+			  MLX5_FLOW_TABLE_TUNNEL_EN_DECAP);
 
 	fdb = mlx5_create_auto_grouped_flow_table(root_ns, FDB_FAST_PATH,
 						  esw_size,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
index 9ae777e56529..1698f325a21e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
@@ -152,7 +152,8 @@ static int mlx5_cmd_create_flow_table(struct mlx5_core_dev *dev,
 				      struct mlx5_flow_table *next_ft,
 				      unsigned int *table_id, u32 flags)
 {
-	int en_encap_decap = !!(flags & MLX5_FLOW_TABLE_TUNNEL_EN);
+	int en_encap = !!(flags & MLX5_FLOW_TABLE_TUNNEL_EN_ENCAP);
+	int en_decap = !!(flags & MLX5_FLOW_TABLE_TUNNEL_EN_DECAP);
 	u32 out[MLX5_ST_SZ_DW(create_flow_table_out)] = {0};
 	u32 in[MLX5_ST_SZ_DW(create_flow_table_in)]   = {0};
 	int err;
@@ -169,9 +170,9 @@ static int mlx5_cmd_create_flow_table(struct mlx5_core_dev *dev,
 	}
 
 	MLX5_SET(create_flow_table_in, in, flow_table_context.decap_en,
-		 en_encap_decap);
+		 en_decap);
 	MLX5_SET(create_flow_table_in, in, flow_table_context.encap_en,
-		 en_encap_decap);
+		 en_encap);
 
 	switch (op_mod) {
 	case FS_FT_OP_MOD_NORMAL:
diff --git a/include/linux/mlx5/fs.h b/include/linux/mlx5/fs.h
index 0cbf4d5cb1ab..0194e62ad66a 100644
--- a/include/linux/mlx5/fs.h
+++ b/include/linux/mlx5/fs.h
@@ -45,7 +45,8 @@ enum {
 };
 
 enum {
-	MLX5_FLOW_TABLE_TUNNEL_EN = BIT(0),
+	MLX5_FLOW_TABLE_TUNNEL_EN_ENCAP = BIT(0),
+	MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1),
 };
 
 #define LEFTOVERS_RULE_NUM	 2
-- 
2.14.4