summaryrefslogtreecommitdiffstats
path: root/include/linux/mlx5/fs_helpers.h
blob: 9db21cd0e92c4a1f334f4a8d7c90b4a29ecee7fa (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
/*
 * Copyright (c) 2018, Mellanox Technologies. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef _MLX5_FS_HELPERS_
#define _MLX5_FS_HELPERS_

#include <linux/mlx5/mlx5_ifc.h>

#define MLX5_FS_IPV4_VERSION 4
#define MLX5_FS_IPV6_VERSION 6

static inline bool mlx5_fs_is_ipsec_flow(const u32 *match_c)
{
	void *misc_params_c = MLX5_ADDR_OF(fte_match_param, match_c,
					   misc_parameters);

	return MLX5_GET(fte_match_set_misc, misc_params_c, outer_esp_spi);
}

static inline bool _mlx5_fs_is_outer_ipproto_flow(const u32 *match_c,
						  const u32 *match_v, u8 match)
{
	const void *headers_c = MLX5_ADDR_OF(fte_match_param, match_c,
					     outer_headers);
	const void *headers_v = MLX5_ADDR_OF(fte_match_param, match_v,
					     outer_headers);

	return MLX5_GET(fte_match_set_lyr_2_4, headers_c, ip_protocol) == 0xff &&
		MLX5_GET(fte_match_set_lyr_2_4, headers_v, ip_protocol) == match;
}

static inline bool mlx5_fs_is_outer_tcp_flow(const u32 *match_c,
					     const u32 *match_v)
{
	return _mlx5_fs_is_outer_ipproto_flow(match_c, match_v, IPPROTO_TCP);
}

static inline bool mlx5_fs_is_outer_udp_flow(const u32 *match_c,
					     const u32 *match_v)
{
	return _mlx5_fs_is_outer_ipproto_flow(match_c, match_v, IPPROTO_UDP);
}

static inline bool mlx5_fs_is_vxlan_flow(const u32 *match_c)
{
	void *misc_params_c = MLX5_ADDR_OF(fte_match_param, match_c,
					   misc_parameters);

	return MLX5_GET(fte_match_set_misc, misc_params_c, vxlan_vni);
}

static inline bool _mlx5_fs_is_outer_ipv_flow(struct mlx5_core_dev *mdev,
					      const u32 *match_c,
					      const u32 *match_v, int version)
{
	int match_ipv = MLX5_CAP_FLOWTABLE_NIC_RX(mdev,
						  ft_field_support.outer_ip_version);
	const void *headers_c = MLX5_ADDR_OF(fte_match_param, match_c,
					     outer_headers);
	const void *headers_v = MLX5_ADDR_OF(fte_match_param, match_v,
					     outer_headers);

	if (!match_ipv) {
		u16 ethertype;

		switch (version) {
		case MLX5_FS_IPV4_VERSION:
			ethertype = ETH_P_IP;
			break;
		case MLX5_FS_IPV6_VERSION:
			ethertype = ETH_P_IPV6;
			break;
		default:
			return false;
		}

		return MLX5_GET(fte_match_set_lyr_2_4, headers_c,
				ethertype) == 0xffff &&
			MLX5_GET(fte_match_set_lyr_2_4, headers_v,
				 ethertype) == ethertype;
	}

	return MLX5_GET(fte_match_set_lyr_2_4, headers_c,
			ip_version) == 0xf &&
		MLX5_GET(fte_match_set_lyr_2_4, headers_v,
			 ip_version) == version;
}

static inline bool
mlx5_fs_is_outer_ipv4_flow(struct mlx5_core_dev *mdev, const u32 *match_c,
			   const u32 *match_v)
{
	return _mlx5_fs_is_outer_ipv_flow(mdev, match_c, match_v,
					  MLX5_FS_IPV4_VERSION);
}

static inline bool
mlx5_fs_is_outer_ipv6_flow(struct mlx5_core_dev *mdev, const u32 *match_c,
			   const u32 *match_v)
{
	return _mlx5_fs_is_outer_ipv_flow(mdev, match_c, match_v,
					  MLX5_FS_IPV6_VERSION);
}

static inline bool mlx5_fs_is_outer_ipsec_flow(const u32 *match_c)
{
	void *misc_params_c =
			MLX5_ADDR_OF(fte_match_param, match_c, misc_parameters);

	return MLX5_GET(fte_match_set_misc, misc_params_c, outer_esp_spi);
}

#endif