1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2/* Copyright (c) 2018 Mellanox Technologies. */
3
4#ifndef __MLX5_EN_TC_TUNNEL_H__
5#define __MLX5_EN_TC_TUNNEL_H__
6
7#include <linux/netdevice.h>
8#include <linux/mlx5/fs.h>
9#include <net/pkt_cls.h>
10#include <linux/netlink.h>
11#include "en.h"
12#include "en_rep.h"
13
14#ifdef CONFIG_MLX5_ESWITCH
15
16enum {
17	MLX5E_TC_TUNNEL_TYPE_UNKNOWN,
18	MLX5E_TC_TUNNEL_TYPE_VXLAN,
19	MLX5E_TC_TUNNEL_TYPE_GENEVE,
20	MLX5E_TC_TUNNEL_TYPE_GRETAP,
21	MLX5E_TC_TUNNEL_TYPE_MPLSOUDP,
22};
23
24struct mlx5e_encap_key {
25	const struct ip_tunnel_key *ip_tun_key;
26	struct mlx5e_tc_tunnel     *tc_tunnel;
27};
28
29struct mlx5e_tc_tunnel {
30	int tunnel_type;
31	enum mlx5_flow_match_level match_level;
32
33	bool (*can_offload)(struct mlx5e_priv *priv);
34	int (*calc_hlen)(struct mlx5e_encap_entry *e);
35	int (*init_encap_attr)(struct net_device *tunnel_dev,
36			       struct mlx5e_priv *priv,
37			       struct mlx5e_encap_entry *e,
38			       struct netlink_ext_ack *extack);
39	int (*generate_ip_tun_hdr)(char buf[],
40				   __u8 *ip_proto,
41				   struct mlx5e_encap_entry *e);
42	int (*parse_udp_ports)(struct mlx5e_priv *priv,
43			       struct mlx5_flow_spec *spec,
44			       struct flow_cls_offload *f,
45			       void *headers_c,
46			       void *headers_v);
47	int (*parse_tunnel)(struct mlx5e_priv *priv,
48			    struct mlx5_flow_spec *spec,
49			    struct flow_cls_offload *f,
50			    void *headers_c,
51			    void *headers_v);
52	bool (*encap_info_equal)(struct mlx5e_encap_key *a,
53				 struct mlx5e_encap_key *b);
54	int (*get_remote_ifindex)(struct net_device *mirred_dev);
55};
56
57extern struct mlx5e_tc_tunnel vxlan_tunnel;
58extern struct mlx5e_tc_tunnel geneve_tunnel;
59extern struct mlx5e_tc_tunnel gre_tunnel;
60extern struct mlx5e_tc_tunnel mplsoudp_tunnel;
61
62struct mlx5e_tc_tunnel *mlx5e_get_tc_tun(struct net_device *tunnel_dev);
63
64int mlx5e_tc_tun_init_encap_attr(struct net_device *tunnel_dev,
65				 struct mlx5e_priv *priv,
66				 struct mlx5e_encap_entry *e,
67				 struct netlink_ext_ack *extack);
68
69int mlx5e_tc_tun_create_header_ipv4(struct mlx5e_priv *priv,
70				    struct net_device *mirred_dev,
71				    struct mlx5e_encap_entry *e);
72int mlx5e_tc_tun_update_header_ipv4(struct mlx5e_priv *priv,
73				    struct net_device *mirred_dev,
74				    struct mlx5e_encap_entry *e);
75
76#if IS_ENABLED(CONFIG_INET) && IS_ENABLED(CONFIG_IPV6)
77int mlx5e_tc_tun_create_header_ipv6(struct mlx5e_priv *priv,
78				    struct net_device *mirred_dev,
79				    struct mlx5e_encap_entry *e);
80int mlx5e_tc_tun_update_header_ipv6(struct mlx5e_priv *priv,
81				    struct net_device *mirred_dev,
82				    struct mlx5e_encap_entry *e);
83#else
84static inline int
85mlx5e_tc_tun_create_header_ipv6(struct mlx5e_priv *priv,
86				struct net_device *mirred_dev,
87				struct mlx5e_encap_entry *e)
88{ return -EOPNOTSUPP; }
89static inline int
90mlx5e_tc_tun_update_header_ipv6(struct mlx5e_priv *priv,
91				struct net_device *mirred_dev,
92				struct mlx5e_encap_entry *e)
93{ return -EOPNOTSUPP; }
94#endif
95int mlx5e_tc_tun_route_lookup(struct mlx5e_priv *priv,
96			      struct mlx5_flow_spec *spec,
97			      struct mlx5_flow_attr *attr,
98			      struct net_device *filter_dev);
99
100bool mlx5e_tc_tun_device_to_offload(struct mlx5e_priv *priv,
101				    struct net_device *netdev);
102
103int mlx5e_tc_tun_parse(struct net_device *filter_dev,
104		       struct mlx5e_priv *priv,
105		       struct mlx5_flow_spec *spec,
106		       struct flow_cls_offload *f,
107		       u8 *match_level);
108
109int mlx5e_tc_tun_parse_udp_ports(struct mlx5e_priv *priv,
110				 struct mlx5_flow_spec *spec,
111				 struct flow_cls_offload *f,
112				 void *headers_c,
113				 void *headers_v);
114
115bool mlx5e_tc_tun_encap_info_equal_generic(struct mlx5e_encap_key *a,
116					   struct mlx5e_encap_key *b);
117
118bool mlx5e_tc_tun_encap_info_equal_options(struct mlx5e_encap_key *a,
119					   struct mlx5e_encap_key *b,
120					   __be16 tun_flags);
121#endif /* CONFIG_MLX5_ESWITCH */
122
123#endif //__MLX5_EN_TC_TUNNEL_H__
124