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
16 enum {
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
24 struct mlx5e_encap_key {
25 const struct ip_tunnel_key *ip_tun_key;
26 struct mlx5e_tc_tunnel *tc_tunnel;
27 };
28
29 struct 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
57 extern struct mlx5e_tc_tunnel vxlan_tunnel;
58 extern struct mlx5e_tc_tunnel geneve_tunnel;
59 extern struct mlx5e_tc_tunnel gre_tunnel;
60 extern struct mlx5e_tc_tunnel mplsoudp_tunnel;
61
62 struct mlx5e_tc_tunnel *mlx5e_get_tc_tun(struct net_device *tunnel_dev);
63
64 int 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
69 int mlx5e_tc_tun_create_header_ipv4(struct mlx5e_priv *priv,
70 struct net_device *mirred_dev,
71 struct mlx5e_encap_entry *e);
72 int 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)
77 int mlx5e_tc_tun_create_header_ipv6(struct mlx5e_priv *priv,
78 struct net_device *mirred_dev,
79 struct mlx5e_encap_entry *e);
80 int mlx5e_tc_tun_update_header_ipv6(struct mlx5e_priv *priv,
81 struct net_device *mirred_dev,
82 struct mlx5e_encap_entry *e);
83 #else
84 static inline int
mlx5e_tc_tun_create_header_ipv6(struct mlx5e_priv * priv,struct net_device * mirred_dev,struct mlx5e_encap_entry * e)85 mlx5e_tc_tun_create_header_ipv6(struct mlx5e_priv *priv,
86 struct net_device *mirred_dev,
87 struct mlx5e_encap_entry *e)
88 { return -EOPNOTSUPP; }
89 static inline int
mlx5e_tc_tun_update_header_ipv6(struct mlx5e_priv * priv,struct net_device * mirred_dev,struct mlx5e_encap_entry * e)90 mlx5e_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
95 int 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
100 bool mlx5e_tc_tun_device_to_offload(struct mlx5e_priv *priv,
101 struct net_device *netdev);
102
103 int 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
109 int 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
115 bool mlx5e_tc_tun_encap_info_equal_generic(struct mlx5e_encap_key *a,
116 struct mlx5e_encap_key *b);
117
118 bool 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