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_ROUTER_H_
5#define _MLXSW_ROUTER_H_
6
7#include "spectrum.h"
8#include "reg.h"
9
10struct mlxsw_sp_router_nve_decap {
11	u32 ul_tb_id;
12	u32 tunnel_index;
13	enum mlxsw_sp_l3proto ul_proto;
14	union mlxsw_sp_l3addr ul_sip;
15	u8 valid:1;
16};
17
18struct mlxsw_sp_router {
19	struct mlxsw_sp *mlxsw_sp;
20	struct mlxsw_sp_rif **rifs;
21	struct mlxsw_sp_vr *vrs;
22	struct rhashtable neigh_ht;
23	struct rhashtable nexthop_group_ht;
24	struct rhashtable nexthop_ht;
25	struct list_head nexthop_list;
26	struct {
27		/* One tree for each protocol: IPv4 and IPv6 */
28		struct mlxsw_sp_lpm_tree *proto_trees[2];
29		struct mlxsw_sp_lpm_tree *trees;
30		unsigned int tree_count;
31	} lpm;
32	struct {
33		struct delayed_work dw;
34		unsigned long interval;	/* ms */
35	} neighs_update;
36	struct delayed_work nexthop_probe_dw;
37#define MLXSW_SP_UNRESOLVED_NH_PROBE_INTERVAL 5000 /* ms */
38	struct list_head nexthop_neighs_list;
39	struct list_head ipip_list;
40	bool aborted;
41	struct notifier_block fib_nb;
42	struct notifier_block netevent_nb;
43	struct notifier_block inetaddr_nb;
44	struct notifier_block inet6addr_nb;
45	const struct mlxsw_sp_rif_ops **rif_ops_arr;
46	const struct mlxsw_sp_ipip_ops **ipip_ops_arr;
47	u32 adj_discard_index;
48	bool adj_discard_index_valid;
49	struct mlxsw_sp_router_nve_decap nve_decap_config;
50	struct mutex lock; /* Protects shared router resources */
51};
52
53struct mlxsw_sp_rif_ipip_lb;
54struct mlxsw_sp_rif_ipip_lb_config {
55	enum mlxsw_reg_ritr_loopback_ipip_type lb_ipipt;
56	u32 okey;
57	enum mlxsw_sp_l3proto ul_protocol; /* Underlay. */
58	union mlxsw_sp_l3addr saddr;
59};
60
61enum mlxsw_sp_rif_counter_dir {
62	MLXSW_SP_RIF_COUNTER_INGRESS,
63	MLXSW_SP_RIF_COUNTER_EGRESS,
64};
65
66struct mlxsw_sp_neigh_entry;
67struct mlxsw_sp_nexthop;
68struct mlxsw_sp_ipip_entry;
69
70struct mlxsw_sp_rif *mlxsw_sp_rif_by_index(const struct mlxsw_sp *mlxsw_sp,
71					   u16 rif_index);
72u16 mlxsw_sp_rif_index(const struct mlxsw_sp_rif *rif);
73u16 mlxsw_sp_ipip_lb_rif_index(const struct mlxsw_sp_rif_ipip_lb *rif);
74u16 mlxsw_sp_ipip_lb_ul_vr_id(const struct mlxsw_sp_rif_ipip_lb *rif);
75u16 mlxsw_sp_ipip_lb_ul_rif_id(const struct mlxsw_sp_rif_ipip_lb *lb_rif);
76u32 mlxsw_sp_ipip_dev_ul_tb_id(const struct net_device *ol_dev);
77int mlxsw_sp_rif_dev_ifindex(const struct mlxsw_sp_rif *rif);
78const struct net_device *mlxsw_sp_rif_dev(const struct mlxsw_sp_rif *rif);
79int mlxsw_sp_rif_counter_value_get(struct mlxsw_sp *mlxsw_sp,
80				   struct mlxsw_sp_rif *rif,
81				   enum mlxsw_sp_rif_counter_dir dir,
82				   u64 *cnt);
83void mlxsw_sp_rif_counter_free(struct mlxsw_sp *mlxsw_sp,
84			       struct mlxsw_sp_rif *rif,
85			       enum mlxsw_sp_rif_counter_dir dir);
86int mlxsw_sp_rif_counter_alloc(struct mlxsw_sp *mlxsw_sp,
87			       struct mlxsw_sp_rif *rif,
88			       enum mlxsw_sp_rif_counter_dir dir);
89struct mlxsw_sp_neigh_entry *
90mlxsw_sp_rif_neigh_next(struct mlxsw_sp_rif *rif,
91			struct mlxsw_sp_neigh_entry *neigh_entry);
92int mlxsw_sp_neigh_entry_type(struct mlxsw_sp_neigh_entry *neigh_entry);
93unsigned char *
94mlxsw_sp_neigh_entry_ha(struct mlxsw_sp_neigh_entry *neigh_entry);
95u32 mlxsw_sp_neigh4_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry);
96struct in6_addr *
97mlxsw_sp_neigh6_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry);
98
99#define mlxsw_sp_rif_neigh_for_each(neigh_entry, rif)				\
100	for (neigh_entry = mlxsw_sp_rif_neigh_next(rif, NULL); neigh_entry;	\
101	     neigh_entry = mlxsw_sp_rif_neigh_next(rif, neigh_entry))
102int mlxsw_sp_neigh_counter_get(struct mlxsw_sp *mlxsw_sp,
103			       struct mlxsw_sp_neigh_entry *neigh_entry,
104			       u64 *p_counter);
105void
106mlxsw_sp_neigh_entry_counter_update(struct mlxsw_sp *mlxsw_sp,
107				    struct mlxsw_sp_neigh_entry *neigh_entry,
108				    bool adding);
109bool mlxsw_sp_neigh_ipv6_ignore(struct mlxsw_sp_neigh_entry *neigh_entry);
110int __mlxsw_sp_ipip_entry_update_tunnel(struct mlxsw_sp *mlxsw_sp,
111					struct mlxsw_sp_ipip_entry *ipip_entry,
112					bool recreate_loopback,
113					bool keep_encap,
114					bool update_nexthops,
115					struct netlink_ext_ack *extack);
116void mlxsw_sp_ipip_entry_demote_tunnel(struct mlxsw_sp *mlxsw_sp,
117				       struct mlxsw_sp_ipip_entry *ipip_entry);
118bool
119mlxsw_sp_ipip_demote_tunnel_by_saddr(struct mlxsw_sp *mlxsw_sp,
120				     enum mlxsw_sp_l3proto ul_proto,
121				     union mlxsw_sp_l3addr saddr,
122				     u32 ul_tb_id,
123				     const struct mlxsw_sp_ipip_entry *except);
124struct mlxsw_sp_nexthop *mlxsw_sp_nexthop_next(struct mlxsw_sp_router *router,
125					       struct mlxsw_sp_nexthop *nh);
126bool mlxsw_sp_nexthop_offload(struct mlxsw_sp_nexthop *nh);
127unsigned char *mlxsw_sp_nexthop_ha(struct mlxsw_sp_nexthop *nh);
128int mlxsw_sp_nexthop_indexes(struct mlxsw_sp_nexthop *nh, u32 *p_adj_index,
129			     u32 *p_adj_size, u32 *p_adj_hash_index);
130struct mlxsw_sp_rif *mlxsw_sp_nexthop_rif(struct mlxsw_sp_nexthop *nh);
131bool mlxsw_sp_nexthop_group_has_ipip(struct mlxsw_sp_nexthop *nh);
132#define mlxsw_sp_nexthop_for_each(nh, router)				\
133	for (nh = mlxsw_sp_nexthop_next(router, NULL); nh;		\
134	     nh = mlxsw_sp_nexthop_next(router, nh))
135int mlxsw_sp_nexthop_counter_get(struct mlxsw_sp *mlxsw_sp,
136				 struct mlxsw_sp_nexthop *nh, u64 *p_counter);
137int mlxsw_sp_nexthop_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index,
138			    struct mlxsw_sp_nexthop *nh);
139void mlxsw_sp_nexthop_counter_alloc(struct mlxsw_sp *mlxsw_sp,
140				    struct mlxsw_sp_nexthop *nh);
141void mlxsw_sp_nexthop_counter_free(struct mlxsw_sp *mlxsw_sp,
142				   struct mlxsw_sp_nexthop *nh);
143
144static inline bool mlxsw_sp_l3addr_eq(const union mlxsw_sp_l3addr *addr1,
145				      const union mlxsw_sp_l3addr *addr2)
146{
147	return !memcmp(addr1, addr2, sizeof(*addr1));
148}
149
150int mlxsw_sp_ipip_ecn_encap_init(struct mlxsw_sp *mlxsw_sp);
151int mlxsw_sp_ipip_ecn_decap_init(struct mlxsw_sp *mlxsw_sp);
152
153#endif /* _MLXSW_ROUTER_H_*/
154