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

[~andy/linux] / drivers / net / ethernet / mellanox / mlx4 / port.c

diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c
index 97d342fa5032e0ed1a90207bea0a01d2fc203b5c..93f75ec78c8224b36822103aafb4f15c437119e3 100644 (file)
--- 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,