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
mlx5_accel_tls_add_flow(struct mlx5_core_dev * mdev,void * flow,struct tls_crypto_info * crypto_info,u32 start_offload_tcp_sn,u32 * p_swid,bool direction_sx)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
mlx5_accel_tls_del_flow(struct mlx5_core_dev * mdev,u32 swid,bool direction_sx)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
mlx5_accel_tls_resync_rx(struct mlx5_core_dev * mdev,__be32 handle,u32 seq,__be64 rcd_sn)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
mlx5_accel_is_tls_device(struct mlx5_core_dev * mdev)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
mlx5_accel_tls_device_caps(struct mlx5_core_dev * mdev)71 u32 mlx5_accel_tls_device_caps(struct mlx5_core_dev *mdev)
72 {
73 return mlx5_fpga_tls_device_caps(mdev);
74 }
75
mlx5_accel_tls_init(struct mlx5_core_dev * mdev)76 int mlx5_accel_tls_init(struct mlx5_core_dev *mdev)
77 {
78 return mlx5_fpga_tls_init(mdev);
79 }
80
mlx5_accel_tls_cleanup(struct mlx5_core_dev * mdev)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
mlx5_ktls_create_key(struct mlx5_core_dev * mdev,struct tls_crypto_info * crypto_info,u32 * p_key_id)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
mlx5_ktls_destroy_key(struct mlx5_core_dev * mdev,u32 key_id)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
126