1 /*
2  * Copyright (c) 2016, Mellanox Technologies, Ltd.  All rights reserved.
3  *
4  * This software is available to you under a choice of one of two
5  * licenses.  You may choose to be licensed under the terms of the GNU
6  * General Public License (GPL) Version 2, available from the file
7  * COPYING in the main directory of this source tree, or the
8  * OpenIB.org BSD license below:
9  *
10  *     Redistribution and use in source and binary forms, with or
11  *     without modification, are permitted provided that the following
12  *     conditions are met:
13  *
14  *      - Redistributions of source code must retain the above
15  *        copyright notice, this list of conditions and the following
16  *        disclaimer.
17  *
18  *      - Redistributions in binary form must reproduce the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer in the documentation and/or other materials
21  *        provided with the distribution.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30  * SOFTWARE.
31  */
32 #ifndef __MLX5_VXLAN_H__
33 #define __MLX5_VXLAN_H__
34 
35 #include <linux/mlx5/driver.h>
36 
37 struct mlx5_vxlan;
38 struct mlx5_vxlan_port;
39 
mlx5_vxlan_max_udp_ports(struct mlx5_core_dev * mdev)40 static inline u8 mlx5_vxlan_max_udp_ports(struct mlx5_core_dev *mdev)
41 {
42 	return MLX5_CAP_ETH(mdev, max_vxlan_udp_ports) ?: 4;
43 }
44 
mlx5_vxlan_allowed(struct mlx5_vxlan * vxlan)45 static inline bool mlx5_vxlan_allowed(struct mlx5_vxlan *vxlan)
46 {
47 	/* not allowed reason is encoded in vxlan pointer as error,
48 	 * on mlx5_vxlan_create
49 	 */
50 	return !IS_ERR_OR_NULL(vxlan);
51 }
52 
53 #if IS_ENABLED(CONFIG_VXLAN)
54 struct mlx5_vxlan *mlx5_vxlan_create(struct mlx5_core_dev *mdev);
55 void mlx5_vxlan_destroy(struct mlx5_vxlan *vxlan);
56 int mlx5_vxlan_add_port(struct mlx5_vxlan *vxlan, u16 port);
57 int mlx5_vxlan_del_port(struct mlx5_vxlan *vxlan, u16 port);
58 bool mlx5_vxlan_lookup_port(struct mlx5_vxlan *vxlan, u16 port);
59 void mlx5_vxlan_reset_to_default(struct mlx5_vxlan *vxlan);
60 #else
61 static inline struct mlx5_vxlan*
mlx5_vxlan_create(struct mlx5_core_dev * mdev)62 mlx5_vxlan_create(struct mlx5_core_dev *mdev) { return ERR_PTR(-EOPNOTSUPP); }
mlx5_vxlan_destroy(struct mlx5_vxlan * vxlan)63 static inline void mlx5_vxlan_destroy(struct mlx5_vxlan *vxlan) { return; }
mlx5_vxlan_add_port(struct mlx5_vxlan * vxlan,u16 port)64 static inline int mlx5_vxlan_add_port(struct mlx5_vxlan *vxlan, u16 port) { return -EOPNOTSUPP; }
mlx5_vxlan_del_port(struct mlx5_vxlan * vxlan,u16 port)65 static inline int mlx5_vxlan_del_port(struct mlx5_vxlan *vxlan, u16 port) { return -EOPNOTSUPP; }
mlx5_vxlan_lookup_port(struct mlx5_vxlan * vxlan,u16 port)66 static inline bool mlx5_vxlan_lookup_port(struct mlx5_vxlan *vxlan, u16 port) { return false; }
mlx5_vxlan_reset_to_default(struct mlx5_vxlan * vxlan)67 static inline void mlx5_vxlan_reset_to_default(struct mlx5_vxlan *vxlan) { return; }
68 #endif
69 
70 #endif /* __MLX5_VXLAN_H__ */
71