Merge tag 'pwm/for-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry...
[linux-2.6-microblaze.git] / drivers / net / ethernet / mellanox / mlx5 / core / accel / tls.c
1 /*
2  * Copyright (c) 2018 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 #include <linux/mlx5/device.h>
35
36 #include "accel/tls.h"
37 #include "mlx5_core.h"
38 #include "lib/mlx5.h"
39
40 #ifdef CONFIG_MLX5_FPGA_TLS
41 #include "fpga/tls.h"
42
43 int mlx5_accel_tls_add_flow(struct mlx5_core_dev *mdev, void *flow,
44                             struct tls_crypto_info *crypto_info,
45                             u32 start_offload_tcp_sn, u32 *p_swid,
46                             bool direction_sx)
47 {
48         return mlx5_fpga_tls_add_flow(mdev, flow, crypto_info,
49                                       start_offload_tcp_sn, p_swid,
50                                       direction_sx);
51 }
52
53 void mlx5_accel_tls_del_flow(struct mlx5_core_dev *mdev, u32 swid,
54                              bool direction_sx)
55 {
56         mlx5_fpga_tls_del_flow(mdev, swid, GFP_KERNEL, direction_sx);
57 }
58
59 int mlx5_accel_tls_resync_rx(struct mlx5_core_dev *mdev, __be32 handle,
60                              u32 seq, __be64 rcd_sn)
61 {
62         return mlx5_fpga_tls_resync_rx(mdev, handle, seq, rcd_sn);
63 }
64
65 bool mlx5_accel_is_tls_device(struct mlx5_core_dev *mdev)
66 {
67         return mlx5_fpga_is_tls_device(mdev) ||
68                 mlx5_accel_is_ktls_device(mdev);
69 }
70
71 u32 mlx5_accel_tls_device_caps(struct mlx5_core_dev *mdev)
72 {
73         return mlx5_fpga_tls_device_caps(mdev);
74 }
75
76 int mlx5_accel_tls_init(struct mlx5_core_dev *mdev)
77 {
78         return mlx5_fpga_tls_init(mdev);
79 }
80
81 void mlx5_accel_tls_cleanup(struct mlx5_core_dev *mdev)
82 {
83         mlx5_fpga_tls_cleanup(mdev);
84 }
85 #endif
86
87 #ifdef CONFIG_MLX5_TLS
88 int mlx5_ktls_create_key(struct mlx5_core_dev *mdev,
89                          struct tls_crypto_info *crypto_info,
90                          u32 *p_key_id)
91 {
92         u32 sz_bytes;
93         void *key;
94
95         switch (crypto_info->cipher_type) {
96         case TLS_CIPHER_AES_GCM_128: {
97                 struct tls12_crypto_info_aes_gcm_128 *info =
98                         (struct tls12_crypto_info_aes_gcm_128 *)crypto_info;
99
100                 key      = info->key;
101                 sz_bytes = sizeof(info->key);
102                 break;
103         }
104         case TLS_CIPHER_AES_GCM_256: {
105                 struct tls12_crypto_info_aes_gcm_256 *info =
106                         (struct tls12_crypto_info_aes_gcm_256 *)crypto_info;
107
108                 key      = info->key;
109                 sz_bytes = sizeof(info->key);
110                 break;
111         }
112         default:
113                 return -EINVAL;
114         }
115
116         return mlx5_create_encryption_key(mdev, key, sz_bytes,
117                                           MLX5_ACCEL_OBJ_TLS_KEY,
118                                           p_key_id);
119 }
120
121 void mlx5_ktls_destroy_key(struct mlx5_core_dev *mdev, u32 key_id)
122 {
123         mlx5_destroy_encryption_key(mdev, key_id);
124 }
125 #endif