root/drivers/net/ethernet/mellanox/mlx5/core/accel/tls.c

DEFINITIONS

1. mlx5_accel_tls_add_flow
2. mlx5_accel_tls_del_flow
3. mlx5_accel_tls_resync_rx
4. mlx5_accel_is_tls_device
5. mlx5_accel_tls_device_caps
6. mlx5_accel_tls_init
7. mlx5_accel_tls_cleanup
8. mlx5_ktls_create_key
9. mlx5_ktls_destroy_key

   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, u32 handle, u32 seq,
  60                              u64 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, p_key_id);
 117 }
 118 
 119 void mlx5_ktls_destroy_key(struct mlx5_core_dev *mdev, u32 key_id)
 120 {
 121         mlx5_destroy_encryption_key(mdev, key_id);
 122 }
 123 #endif