forked from mirrors/linux
363c5a570d
Simple wrapper to understand if we are dealing with IPsec flow. Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
142 lines
4.3 KiB
C
142 lines
4.3 KiB
C
/*
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* Copyright (c) 2018, Mellanox Technologies. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _MLX5_FS_HELPERS_
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#define _MLX5_FS_HELPERS_
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#include <linux/mlx5/mlx5_ifc.h>
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#define MLX5_FS_IPV4_VERSION 4
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#define MLX5_FS_IPV6_VERSION 6
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static inline bool mlx5_fs_is_ipsec_flow(const u32 *match_c)
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{
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void *misc_params_c = MLX5_ADDR_OF(fte_match_param, match_c,
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misc_parameters);
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return MLX5_GET(fte_match_set_misc, misc_params_c, outer_esp_spi);
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}
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static inline bool _mlx5_fs_is_outer_ipproto_flow(const u32 *match_c,
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const u32 *match_v, u8 match)
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{
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const void *headers_c = MLX5_ADDR_OF(fte_match_param, match_c,
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outer_headers);
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const void *headers_v = MLX5_ADDR_OF(fte_match_param, match_v,
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outer_headers);
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return MLX5_GET(fte_match_set_lyr_2_4, headers_c, ip_protocol) == 0xff &&
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MLX5_GET(fte_match_set_lyr_2_4, headers_v, ip_protocol) == match;
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}
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static inline bool mlx5_fs_is_outer_tcp_flow(const u32 *match_c,
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const u32 *match_v)
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{
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return _mlx5_fs_is_outer_ipproto_flow(match_c, match_v, IPPROTO_TCP);
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}
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static inline bool mlx5_fs_is_outer_udp_flow(const u32 *match_c,
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const u32 *match_v)
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{
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return _mlx5_fs_is_outer_ipproto_flow(match_c, match_v, IPPROTO_UDP);
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}
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static inline bool mlx5_fs_is_vxlan_flow(const u32 *match_c)
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{
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void *misc_params_c = MLX5_ADDR_OF(fte_match_param, match_c,
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misc_parameters);
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return MLX5_GET(fte_match_set_misc, misc_params_c, vxlan_vni);
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}
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static inline bool _mlx5_fs_is_outer_ipv_flow(struct mlx5_core_dev *mdev,
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const u32 *match_c,
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const u32 *match_v, int version)
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{
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int match_ipv = MLX5_CAP_FLOWTABLE_NIC_RX(mdev,
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ft_field_support.outer_ip_version);
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const void *headers_c = MLX5_ADDR_OF(fte_match_param, match_c,
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outer_headers);
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const void *headers_v = MLX5_ADDR_OF(fte_match_param, match_v,
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outer_headers);
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if (!match_ipv) {
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u16 ethertype;
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switch (version) {
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case MLX5_FS_IPV4_VERSION:
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ethertype = ETH_P_IP;
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break;
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case MLX5_FS_IPV6_VERSION:
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ethertype = ETH_P_IPV6;
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break;
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default:
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return false;
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}
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return MLX5_GET(fte_match_set_lyr_2_4, headers_c,
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ethertype) == 0xffff &&
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MLX5_GET(fte_match_set_lyr_2_4, headers_v,
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ethertype) == ethertype;
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}
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return MLX5_GET(fte_match_set_lyr_2_4, headers_c,
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ip_version) == 0xf &&
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MLX5_GET(fte_match_set_lyr_2_4, headers_v,
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ip_version) == version;
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}
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static inline bool
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mlx5_fs_is_outer_ipv4_flow(struct mlx5_core_dev *mdev, const u32 *match_c,
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const u32 *match_v)
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{
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return _mlx5_fs_is_outer_ipv_flow(mdev, match_c, match_v,
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MLX5_FS_IPV4_VERSION);
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}
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static inline bool
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mlx5_fs_is_outer_ipv6_flow(struct mlx5_core_dev *mdev, const u32 *match_c,
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const u32 *match_v)
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{
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return _mlx5_fs_is_outer_ipv_flow(mdev, match_c, match_v,
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MLX5_FS_IPV6_VERSION);
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}
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static inline bool mlx5_fs_is_outer_ipsec_flow(const u32 *match_c)
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{
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void *misc_params_c =
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MLX5_ADDR_OF(fte_match_param, match_c, misc_parameters);
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return MLX5_GET(fte_match_set_misc, misc_params_c, outer_esp_spi);
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}
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#endif
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