1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2/* Copyright (c) 2020, Mellanox Technologies inc. All rights reserved. */
3
4#ifndef __MLX5E_KTLS_UTILS_H__
5#define __MLX5E_KTLS_UTILS_H__
6
7#include <net/tls.h>
8#include "en.h"
9
10enum {
11 MLX5E_TLS_PROGRESS_PARAMS_AUTH_STATE_NO_OFFLOAD = 0,
12 MLX5E_TLS_PROGRESS_PARAMS_AUTH_STATE_OFFLOAD = 1,
13 MLX5E_TLS_PROGRESS_PARAMS_AUTH_STATE_AUTHENTICATION = 2,
14};
15
16enum {
17 MLX5E_TLS_PROGRESS_PARAMS_RECORD_TRACKER_STATE_START = 0,
18 MLX5E_TLS_PROGRESS_PARAMS_RECORD_TRACKER_STATE_TRACKING = 1,
19 MLX5E_TLS_PROGRESS_PARAMS_RECORD_TRACKER_STATE_SEARCHING = 2,
20};
21
22int mlx5e_ktls_add_tx(struct net_device *netdev, struct sock *sk,
23 struct tls_crypto_info *crypto_info, u32 start_offload_tcp_sn);
24void mlx5e_ktls_del_tx(struct net_device *netdev, struct tls_context *tls_ctx);
25int mlx5e_ktls_add_rx(struct net_device *netdev, struct sock *sk,
26 struct tls_crypto_info *crypto_info, u32 start_offload_tcp_sn);
27void mlx5e_ktls_del_rx(struct net_device *netdev, struct tls_context *tls_ctx);
28void mlx5e_ktls_rx_resync(struct net_device *netdev, struct sock *sk, u32 seq, u8 *rcd_sn);
29
30union mlx5e_crypto_info {
31 struct tls_crypto_info crypto_info;
32 struct tls12_crypto_info_aes_gcm_128 crypto_info_128;
33 struct tls12_crypto_info_aes_gcm_256 crypto_info_256;
34};
35
36struct mlx5e_set_tls_static_params_wqe {
37 struct mlx5_wqe_ctrl_seg ctrl;
38 struct mlx5_wqe_umr_ctrl_seg uctrl;
39 struct mlx5_mkey_seg mkc;
40 struct mlx5_wqe_tls_static_params_seg params;
41};
42
43struct mlx5e_set_tls_progress_params_wqe {
44 struct mlx5_wqe_ctrl_seg ctrl;
45 struct mlx5_wqe_tls_progress_params_seg params;
46};
47
48struct mlx5e_get_tls_progress_params_wqe {
49 struct mlx5_wqe_ctrl_seg ctrl;
50 struct mlx5_seg_get_psv psv;
51};
52
53#define MLX5E_TLS_SET_STATIC_PARAMS_WQEBBS \
54 (DIV_ROUND_UP(sizeof(struct mlx5e_set_tls_static_params_wqe), MLX5_SEND_WQE_BB))
55
56#define MLX5E_TLS_SET_PROGRESS_PARAMS_WQEBBS \
57 (DIV_ROUND_UP(sizeof(struct mlx5e_set_tls_progress_params_wqe), MLX5_SEND_WQE_BB))
58
59#define MLX5E_KTLS_GET_PROGRESS_WQEBBS \
60 (DIV_ROUND_UP(sizeof(struct mlx5e_get_tls_progress_params_wqe), MLX5_SEND_WQE_BB))
61
62#define MLX5E_TLS_FETCH_SET_STATIC_PARAMS_WQE(sq, pi) \
63 ((struct mlx5e_set_tls_static_params_wqe *)\
64 mlx5e_fetch_wqe(&(sq)->wq, pi, sizeof(struct mlx5e_set_tls_static_params_wqe)))
65
66#define MLX5E_TLS_FETCH_SET_PROGRESS_PARAMS_WQE(sq, pi) \
67 ((struct mlx5e_set_tls_progress_params_wqe *)\
68 mlx5e_fetch_wqe(&(sq)->wq, pi, sizeof(struct mlx5e_set_tls_progress_params_wqe)))
69
70#define MLX5E_TLS_FETCH_GET_PROGRESS_PARAMS_WQE(sq, pi) \
71 ((struct mlx5e_get_tls_progress_params_wqe *)\
72 mlx5e_fetch_wqe(&(sq)->wq, pi, sizeof(struct mlx5e_get_tls_progress_params_wqe)))
73
74#define MLX5E_TLS_FETCH_DUMP_WQE(sq, pi) \
75 ((struct mlx5e_dump_wqe *)\
76 mlx5e_fetch_wqe(&(sq)->wq, pi, sizeof(struct mlx5e_dump_wqe)))
77
78void
79mlx5e_ktls_build_static_params(struct mlx5e_set_tls_static_params_wqe *wqe,
80 u16 pc, u32 sqn,
81 union mlx5e_crypto_info *crypto_info,
82 u32 tis_tir_num, u32 key_id, u32 resync_tcp_sn,
83 bool fence, enum tls_offload_ctx_dir direction);
84void
85mlx5e_ktls_build_progress_params(struct mlx5e_set_tls_progress_params_wqe *wqe,
86 u16 pc, u32 sqn,
87 u32 tis_tir_num, bool fence,
88 u32 next_record_tcp_sn,
89 enum tls_offload_ctx_dir direction);
90
91#endif /* __MLX5E_TLS_UTILS_H__ */
92

source code of linux/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_utils.h