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 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 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