1 /*
2 * Copyright (c) 2017 Mellanox Technologies. 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 */
33
34 #ifndef __MLX5_ACCEL_IPSEC_H__
35 #define __MLX5_ACCEL_IPSEC_H__
36
37 #include <linux/mlx5/driver.h>
38 #include <linux/mlx5/accel.h>
39
40 #ifdef CONFIG_MLX5_FPGA_IPSEC
41
42 #define MLX5_IPSEC_DEV(mdev) (mlx5_accel_ipsec_device_caps(mdev) & \
43 MLX5_ACCEL_IPSEC_CAP_DEVICE)
44
45 unsigned int mlx5_accel_ipsec_counters_count(struct mlx5_core_dev *mdev);
46 int mlx5_accel_ipsec_counters_read(struct mlx5_core_dev *mdev, u64 *counters,
47 unsigned int count);
48
49 void *mlx5_accel_esp_create_hw_context(struct mlx5_core_dev *mdev,
50 struct mlx5_accel_esp_xfrm *xfrm,
51 const __be32 saddr[4],
52 const __be32 daddr[4],
53 const __be32 spi, bool is_ipv6);
54 void mlx5_accel_esp_free_hw_context(void *context);
55
56 int mlx5_accel_ipsec_init(struct mlx5_core_dev *mdev);
57 void mlx5_accel_ipsec_build_fs_cmds(void);
58 void mlx5_accel_ipsec_cleanup(struct mlx5_core_dev *mdev);
59
60 #else
61
62 #define MLX5_IPSEC_DEV(mdev) false
63
64 static inline void *
65 mlx5_accel_esp_create_hw_context(struct mlx5_core_dev *mdev,
66 struct mlx5_accel_esp_xfrm *xfrm,
67 const __be32 saddr[4],
68 const __be32 daddr[4],
69 const __be32 spi, bool is_ipv6)
70 {
71 return NULL;
72 }
73
74 static inline void mlx5_accel_esp_free_hw_context(void *context)
75 {
76 }
77
78 static inline int mlx5_accel_ipsec_init(struct mlx5_core_dev *mdev)
79 {
80 return 0;
81 }
82
83 static inline void mlx5_accel_ipsec_build_fs_cmds(void)
84 {
85 }
86
87 static inline void mlx5_accel_ipsec_cleanup(struct mlx5_core_dev *mdev)
88 {
89 }
90
91 #endif
92
93 #endif /* __MLX5_ACCEL_IPSEC_H__ */