1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
2 /* Copyright (c) 2017-2018 Mellanox Technologies. All rights reserved */
3 
4 #ifndef _MLXSW_IPIP_H_
5 #define _MLXSW_IPIP_H_
6 
7 #include "spectrum_router.h"
8 #include <net/ip_fib.h>
9 #include <linux/if_tunnel.h>
10 #include <net/ip6_tunnel.h>
11 
12 struct ip_tunnel_parm_kern
13 mlxsw_sp_ipip_netdev_parms4(const struct net_device *ol_dev);
14 struct __ip6_tnl_parm
15 mlxsw_sp_ipip_netdev_parms6(const struct net_device *ol_dev);
16 
17 union mlxsw_sp_l3addr
18 mlxsw_sp_ipip_netdev_saddr(enum mlxsw_sp_l3proto proto,
19 			   const struct net_device *ol_dev);
20 
21 bool mlxsw_sp_l3addr_is_zero(union mlxsw_sp_l3addr addr);
22 
23 enum mlxsw_sp_ipip_type {
24 	MLXSW_SP_IPIP_TYPE_GRE4,
25 	MLXSW_SP_IPIP_TYPE_GRE6,
26 	MLXSW_SP_IPIP_TYPE_MAX,
27 };
28 
29 struct mlxsw_sp_ipip_parms {
30 	enum mlxsw_sp_l3proto proto;
31 	union mlxsw_sp_l3addr saddr;
32 	union mlxsw_sp_l3addr daddr;
33 	int link;
34 	u32 ikey;
35 	u32 okey;
36 };
37 
38 struct mlxsw_sp_ipip_entry {
39 	enum mlxsw_sp_ipip_type ipipt;
40 	struct net_device *ol_dev; /* Overlay. */
41 	struct mlxsw_sp_rif_ipip_lb *ol_lb;
42 	struct mlxsw_sp_fib_entry *decap_fib_entry;
43 	struct list_head ipip_list_node;
44 	struct mlxsw_sp_ipip_parms parms;
45 	u32 dip_kvdl_index;
46 };
47 
48 struct mlxsw_sp_ipip_ops {
49 	int dev_type;
50 	enum mlxsw_sp_l3proto ul_proto; /* Underlay. */
51 	bool inc_parsing_depth;
52 	bool double_rif_entry;
53 
54 	struct mlxsw_sp_ipip_parms
55 	(*parms_init)(const struct net_device *ol_dev);
56 
57 	int (*nexthop_update)(struct mlxsw_sp *mlxsw_sp, u32 adj_index,
58 			      struct mlxsw_sp_ipip_entry *ipip_entry,
59 			      bool force, char *ratr_pl);
60 
61 	bool (*can_offload)(const struct mlxsw_sp *mlxsw_sp,
62 			    const struct net_device *ol_dev);
63 
64 	/* Return a configuration for creating an overlay loopback RIF. */
65 	struct mlxsw_sp_rif_ipip_lb_config
66 	(*ol_loopback_config)(struct mlxsw_sp *mlxsw_sp,
67 			      const struct net_device *ol_dev);
68 
69 	int (*decap_config)(struct mlxsw_sp *mlxsw_sp,
70 			    struct mlxsw_sp_ipip_entry *ipip_entry,
71 			    u32 tunnel_index);
72 
73 	int (*ol_netdev_change)(struct mlxsw_sp *mlxsw_sp,
74 				struct mlxsw_sp_ipip_entry *ipip_entry,
75 				struct netlink_ext_ack *extack);
76 	int (*rem_ip_addr_set)(struct mlxsw_sp *mlxsw_sp,
77 			       struct mlxsw_sp_ipip_entry *ipip_entry);
78 	void (*rem_ip_addr_unset)(struct mlxsw_sp *mlxsw_sp,
79 				  const struct mlxsw_sp_ipip_entry *ipip_entry);
80 };
81 
82 extern const struct mlxsw_sp_ipip_ops *mlxsw_sp1_ipip_ops_arr[];
83 extern const struct mlxsw_sp_ipip_ops *mlxsw_sp2_ipip_ops_arr[];
84 
85 #endif /* _MLXSW_IPIP_H_*/
86