[RFC PATCH rdma-next 13/18] RDMA/mlx5: Enable decap and packet reformat on flow tables

[Leon Romanovsky]

From: Mark Bloch <ma...@mellanox.com>

If NIC RX flow tables support decap opertion, enable it on creation.
If NIC TX flow tables support reformat opertion, enable it on creation.

Signed-off-by: Mark Bloch <ma...@mellanox.com>
Signed-off-by: Leon Romanovsky <leo...@mellanox.com>
---
 drivers/infiniband/hw/mlx5/main.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/main.c 
b/drivers/infiniband/hw/mlx5/main.c
index fe4640fe025b..ecbf9f3e12d8 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -3036,14 +3036,15 @@ enum flow_table_type {
 static struct mlx5_ib_flow_prio *_get_prio(struct mlx5_flow_namespace *ns,
                                           struct mlx5_ib_flow_prio *prio,
                                           int priority,
-                                          int num_entries, int num_groups)
+                                          int num_entries, int num_groups,
+                                          u32 flags)
 {
        struct mlx5_flow_table *ft;

        ft = mlx5_create_auto_grouped_flow_table(ns, priority,
                                                 num_entries,
                                                 num_groups,
-                                                0, 0);
+                                                0, flags);
        if (IS_ERR(ft))
                return ERR_CAST(ft);

@@ -3063,6 +3064,7 @@ static struct mlx5_ib_flow_prio *get_flow_table(struct 
mlx5_ib_dev *dev,
        int max_table_size;
        int num_entries;
        int num_groups;
+       u32 flags = 0;
        int priority;

        max_table_size = BIT(MLX5_CAP_FLOWTABLE_NIC_RX(dev->mdev,
@@ -3079,11 +3081,15 @@ static struct mlx5_ib_flow_prio *get_flow_table(struct 
mlx5_ib_dev *dev,
                if (ft_type == MLX5_IB_FT_RX) {
                        fn_type = MLX5_FLOW_NAMESPACE_BYPASS;
                        prio = &dev->flow_db->prios[priority];
+                       if (MLX5_CAP_FLOWTABLE_NIC_RX(dev->mdev, decap))
+                           flags |= MLX5_FLOW_TABLE_TUNNEL_EN_DECAP;
                } else {
                        max_table_size = 
BIT(MLX5_CAP_FLOWTABLE_NIC_TX(dev->mdev,
                                                                       
log_max_ft_size));
                        fn_type = MLX5_FLOW_NAMESPACE_EGRESS;
                        prio = &dev->flow_db->egress_prios[priority];
+                       if (MLX5_CAP_FLOWTABLE_NIC_RX(dev->mdev, reformat))
+                           flags |= MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT;
                }
                ns = mlx5_get_flow_namespace(dev->mdev, fn_type);
                num_entries = MLX5_FS_MAX_ENTRIES;
@@ -3119,7 +3125,8 @@ static struct mlx5_ib_flow_prio *get_flow_table(struct 
mlx5_ib_dev *dev,

        ft = prio->flow_table;
        if (!ft)
-               return _get_prio(ns, prio, priority, num_entries, num_groups);
+               return _get_prio(ns, prio, priority, num_entries, num_groups,
+                                flags);

        return prio;
 }
@@ -3694,7 +3701,7 @@ static struct mlx5_ib_flow_prio *_get_flow_table(struct 
mlx5_ib_dev *dev,
                return prio;

        return _get_prio(ns, prio, priority, MLX5_FS_MAX_ENTRIES,
-                        MLX5_FS_MAX_TYPES);
+                        MLX5_FS_MAX_TYPES, 0);
 }

 static struct mlx5_ib_flow_handler *
--
2.14.4