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 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
37struct mlx5_vxlan;
38struct mlx5_vxlan_port;
39
40static 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
45static 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)
54struct mlx5_vxlan *mlx5_vxlan_create(struct mlx5_core_dev *mdev);
55void mlx5_vxlan_destroy(struct mlx5_vxlan *vxlan);
56int mlx5_vxlan_add_port(struct mlx5_vxlan *vxlan, u16 port);
57int mlx5_vxlan_del_port(struct mlx5_vxlan *vxlan, u16 port);
58bool mlx5_vxlan_lookup_port(struct mlx5_vxlan *vxlan, u16 port);
59void mlx5_vxlan_reset_to_default(struct mlx5_vxlan *vxlan);
60#else
61static inline struct mlx5_vxlan*
62mlx5_vxlan_create(struct mlx5_core_dev *mdev) { return ERR_PTR(-EOPNOTSUPP); }
63static inline void mlx5_vxlan_destroy(struct mlx5_vxlan *vxlan) { return; }
64static inline int mlx5_vxlan_add_port(struct mlx5_vxlan *vxlan, u16 port) { return -EOPNOTSUPP; }
65static inline int mlx5_vxlan_del_port(struct mlx5_vxlan *vxlan, u16 port) { return -EOPNOTSUPP; }
66static inline bool mlx5_vxlan_lookup_port(struct mlx5_vxlan *vxlan, u16 port) { return false; }
67static inline void mlx5_vxlan_reset_to_default(struct mlx5_vxlan *vxlan) { return; }
68#endif
69
70#endif /* __MLX5_VXLAN_H__ */