/*
* 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_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) == 0 xffff &&
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) == 0 xf &&
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);
}
#endif
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