net/mlx4_core: Add basic support for TCP/IP offloads under tunneling

[linux-2.6-block.git] / drivers / net / ethernet / mellanox / mlx4 / main.c

diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index fbebfb0a64362516b44a03f9bc677f3271aa578c..d2b8b3918b45c9ebfb381fed8baff444cec6de7b 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -1444,6 +1444,19 @@ static void choose_steering_mode(struct mlx4_dev *dev,
                 mlx4_log_num_mgm_entry_size);
 }
 
+static void choose_tunnel_offload_mode(struct mlx4_dev *dev,
+                                      struct mlx4_dev_cap *dev_cap)
+{
+       if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED &&
+           dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS)
+               dev->caps.tunnel_offload_mode = MLX4_TUNNEL_OFFLOAD_MODE_VXLAN;
+       else
+               dev->caps.tunnel_offload_mode = MLX4_TUNNEL_OFFLOAD_MODE_NONE;
+
+       mlx4_dbg(dev, "Tunneling offload mode is: %s\n",  (dev->caps.tunnel_offload_mode
+                == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) ? "vxlan" : "none");
+}
+
 static int mlx4_init_hca(struct mlx4_dev *dev)
 {
        struct mlx4_priv          *priv = mlx4_priv(dev);
@@ -1484,6 +1497,7 @@ static int mlx4_init_hca(struct mlx4_dev *dev)
                }
 
                choose_steering_mode(dev, &dev_cap);
+               choose_tunnel_offload_mode(dev, &dev_cap);
 
                err = mlx4_get_phys_port_id(dev);
                if (err)