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/port.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/port.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/port.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c index 97d342fa5032..93f75ec78c82 100644 --- a/drivers/net/ethernet/mellanox/mlx4/port.c +++ b/drivers/net/ethernet/mellanox/mlx4/port.c @@ -800,6 +800,47 @@ int mlx4_SET_PORT_SCHEDULER(struct mlx4_dev *dev, u8 port, u8 *tc_tx_bw, } EXPORT_SYMBOL(mlx4_SET_PORT_SCHEDULER); +enum { + VXLAN_ENABLE_MODIFY = 1 << 7, + VXLAN_STEERING_MODIFY = 1 << 6, + + VXLAN_ENABLE = 1 << 7, +}; + +struct mlx4_set_port_vxlan_context { + u32 reserved1; + u8 modify_flags; + u8 reserved2; + u8 enable_flags; + u8 steering; +}; + +int mlx4_SET_PORT_VXLAN(struct mlx4_dev *dev, u8 port, u8 steering) +{ + int err; + u32 in_mod; + struct mlx4_cmd_mailbox *mailbox; + struct mlx4_set_port_vxlan_context *context; + + mailbox = mlx4_alloc_cmd_mailbox(dev); + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); + context = mailbox->buf; + memset(context, 0, sizeof(*context)); + + context->modify_flags = VXLAN_ENABLE_MODIFY | VXLAN_STEERING_MODIFY; + context->enable_flags = VXLAN_ENABLE; + context->steering = steering; + + in_mod = MLX4_SET_PORT_VXLAN << 8 | port; + err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT, + MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE); + + mlx4_free_cmd_mailbox(dev, mailbox); + return err; +} +EXPORT_SYMBOL(mlx4_SET_PORT_VXLAN); + int mlx4_SET_MCAST_FLTR_wrapper(struct mlx4_dev *dev, int slave, struct mlx4_vhcr *vhcr, struct mlx4_cmd_mailbox *inbox, |