diff options
| author | Or Gerlitz | 2013-12-23 15:09:43 +0100 |
|---|---|---|
| committer | David S. Miller | 2013-12-31 20:31:43 +0100 |
| commit | 7ffdf726cfe0d188907bdbb0e7729fb35a69c219 (patch) | |
| tree | ead297c29f54fbb91741822dd6df13dbc3193fd4 /drivers/net/ethernet/mellanox/mlx4/main.c | |
| parent | netlink: specify netlink packet direction for nlmon (diff) | |
| download | kernel-qcow2-linux-7ffdf726cfe0d188907bdbb0e7729fb35a69c219.tar.gz kernel-qcow2-linux-7ffdf726cfe0d188907bdbb0e7729fb35a69c219.tar.xz kernel-qcow2-linux-7ffdf726cfe0d188907bdbb0e7729fb35a69c219.zip | |
net/mlx4_core: Add basic support for TCP/IP offloads under tunneling
Add the low-level device commands and definitions used for TCP/IP HW offloads
of tunneled/vxlan traffic which are supported by the ConnectX3-pro NIC.
This is done through the following elements:
- read tunneling device caps in QUERY_DEV_CAP
- add helper function to do SET_PORT for tunneling
- add DMFS VXLAN steering rule definitions
- add CQE and WQE checksum offload field definitions
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/main.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/main.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index fbebfb0a6436..d2b8b3918b45 100644 --- 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) |