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
18/* gen_pool_alloc() returns 0 when allocation fails, so use an offset */
19#define MLXSW_SP_ROUTER_GENALLOC_OFFSET 0x100
20
21struct mlxsw_sp_router {
22	struct mlxsw_sp *mlxsw_sp;
23	struct rhashtable crif_ht;
24	struct gen_pool *rifs_table;
25	struct mlxsw_sp_rif **rifs;
26	struct idr rif_mac_profiles_idr;
27	atomic_t rif_mac_profiles_count;
28	atomic_t rifs_count;
29	u8 max_rif_mac_profile;
30	struct mlxsw_sp_vr *vrs;
31	struct rhashtable neigh_ht;
32	struct rhashtable nexthop_group_ht;
33	struct rhashtable nexthop_ht;
34	struct list_head nexthop_list;
35	struct {
36		/* One tree for each protocol: IPv4 and IPv6 */
37		struct mlxsw_sp_lpm_tree *proto_trees[2];
38		struct mlxsw_sp_lpm_tree *trees;
39		unsigned int tree_count;
40	} lpm;
41	struct {
42		struct delayed_work dw;
43		unsigned long interval;	/* ms */
44		atomic_t neigh_count;
45	} neighs_update;
46	struct delayed_work nexthop_probe_dw;
47#define MLXSW_SP_UNRESOLVED_NH_PROBE_INTERVAL 5000 /* ms */
48	struct list_head nexthop_neighs_list;
49	struct list_head ipip_list;
50	struct notifier_block nexthop_nb;
51	struct notifier_block fib_nb;
52	struct notifier_block netevent_nb;
53	struct notifier_block inetaddr_nb;
54	struct notifier_block inet6addr_nb;
55	struct notifier_block netdevice_nb;
56	struct notifier_block inetaddr_valid_nb;
57	struct notifier_block inet6addr_valid_nb;
58	const struct mlxsw_sp_rif_ops **rif_ops_arr;
59	const struct mlxsw_sp_ipip_ops **ipip_ops_arr;
60	struct mlxsw_sp_router_nve_decap nve_decap_config;
61	struct mutex lock; /* Protects shared router resources */
62	struct mlxsw_sp_fib_entry_op_ctx *ll_op_ctx;
63	struct mlxsw_sp_crif *lb_crif;
64	const struct mlxsw_sp_adj_grp_size_range *adj_grp_size_ranges;
65	size_t adj_grp_size_ranges_count;
66	struct delayed_work nh_grp_activity_dw;
67	struct list_head nh_res_grp_list;
68	bool inc_parsing_depth;
69	refcount_t num_groups;
70	u32 adj_trap_index;
71};
72
73struct mlxsw_sp_rif_ipip_lb;
74struct mlxsw_sp_rif_ipip_lb_config {
75	enum mlxsw_reg_ritr_loopback_ipip_type lb_ipipt;
76	u32 okey;
77	enum mlxsw_sp_l3proto ul_protocol; /* Underlay. */
78	union mlxsw_sp_l3addr saddr;
79};
80
81enum mlxsw_sp_rif_counter_dir {
82	MLXSW_SP_RIF_COUNTER_INGRESS,
83	MLXSW_SP_RIF_COUNTER_EGRESS,
84};
85
86struct mlxsw_sp_neigh_entry;
87struct mlxsw_sp_nexthop;
88struct mlxsw_sp_ipip_entry;
89
90struct mlxsw_sp_rif *mlxsw_sp_rif_by_index(const struct mlxsw_sp *mlxsw_sp,
91					   u16 rif_index);
92u16 mlxsw_sp_ipip_lb_rif_index(const struct mlxsw_sp_rif_ipip_lb *rif);
93u16 mlxsw_sp_ipip_lb_ul_vr_id(const struct mlxsw_sp_rif_ipip_lb *rif);
94u16 mlxsw_sp_ipip_lb_ul_rif_id(const struct mlxsw_sp_rif_ipip_lb *lb_rif);
95u32 mlxsw_sp_ipip_dev_ul_tb_id(const struct net_device *ol_dev);
96int mlxsw_sp_rif_dev_ifindex(const struct mlxsw_sp_rif *rif);
97bool mlxsw_sp_rif_has_dev(const struct mlxsw_sp_rif *rif);
98bool mlxsw_sp_rif_dev_is(const struct mlxsw_sp_rif *rif,
99			 const struct net_device *dev);
100int mlxsw_sp_rif_counter_value_get(struct mlxsw_sp *mlxsw_sp,
101				   struct mlxsw_sp_rif *rif,
102				   enum mlxsw_sp_rif_counter_dir dir,
103				   u64 *cnt);
104void mlxsw_sp_rif_counter_free(struct mlxsw_sp_rif *rif,
105			       enum mlxsw_sp_rif_counter_dir dir);
106int mlxsw_sp_rif_counter_alloc(struct mlxsw_sp_rif *rif,
107			       enum mlxsw_sp_rif_counter_dir dir);
108struct mlxsw_sp_neigh_entry *
109mlxsw_sp_rif_neigh_next(struct mlxsw_sp_rif *rif,
110			struct mlxsw_sp_neigh_entry *neigh_entry);
111int mlxsw_sp_neigh_entry_type(struct mlxsw_sp_neigh_entry *neigh_entry);
112unsigned char *
113mlxsw_sp_neigh_entry_ha(struct mlxsw_sp_neigh_entry *neigh_entry);
114u32 mlxsw_sp_neigh4_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry);
115struct in6_addr *
116mlxsw_sp_neigh6_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry);
117
118#define mlxsw_sp_rif_neigh_for_each(neigh_entry, rif)				\
119	for (neigh_entry = mlxsw_sp_rif_neigh_next(rif, NULL); neigh_entry;	\
120	     neigh_entry = mlxsw_sp_rif_neigh_next(rif, neigh_entry))
121int mlxsw_sp_neigh_counter_get(struct mlxsw_sp *mlxsw_sp,
122			       struct mlxsw_sp_neigh_entry *neigh_entry,
123			       u64 *p_counter);
124void
125mlxsw_sp_neigh_entry_counter_update(struct mlxsw_sp *mlxsw_sp,
126				    struct mlxsw_sp_neigh_entry *neigh_entry,
127				    bool adding);
128bool mlxsw_sp_neigh_ipv6_ignore(struct mlxsw_sp_neigh_entry *neigh_entry);
129int __mlxsw_sp_ipip_entry_update_tunnel(struct mlxsw_sp *mlxsw_sp,
130					struct mlxsw_sp_ipip_entry *ipip_entry,
131					bool recreate_loopback,
132					bool keep_encap,
133					bool update_nexthops,
134					struct netlink_ext_ack *extack);
135void mlxsw_sp_ipip_entry_demote_tunnel(struct mlxsw_sp *mlxsw_sp,
136				       struct mlxsw_sp_ipip_entry *ipip_entry);
137bool
138mlxsw_sp_ipip_demote_tunnel_by_saddr(struct mlxsw_sp *mlxsw_sp,
139				     enum mlxsw_sp_l3proto ul_proto,
140				     union mlxsw_sp_l3addr saddr,
141				     u32 ul_tb_id,
142				     const struct mlxsw_sp_ipip_entry *except);
143struct mlxsw_sp_nexthop *mlxsw_sp_nexthop_next(struct mlxsw_sp_router *router,
144					       struct mlxsw_sp_nexthop *nh);
145bool mlxsw_sp_nexthop_is_forward(const struct mlxsw_sp_nexthop *nh);
146unsigned char *mlxsw_sp_nexthop_ha(struct mlxsw_sp_nexthop *nh);
147int mlxsw_sp_nexthop_indexes(struct mlxsw_sp_nexthop *nh, u32 *p_adj_index,
148			     u32 *p_adj_size, u32 *p_adj_hash_index);
149struct mlxsw_sp_rif *mlxsw_sp_nexthop_rif(struct mlxsw_sp_nexthop *nh);
150bool mlxsw_sp_nexthop_group_has_ipip(struct mlxsw_sp_nexthop *nh);
151#define mlxsw_sp_nexthop_for_each(nh, router)				\
152	for (nh = mlxsw_sp_nexthop_next(router, NULL); nh;		\
153	     nh = mlxsw_sp_nexthop_next(router, nh))
154int mlxsw_sp_nexthop_counter_get(struct mlxsw_sp *mlxsw_sp,
155				 struct mlxsw_sp_nexthop *nh, u64 *p_counter);
156int mlxsw_sp_nexthop_eth_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index,
157				struct mlxsw_sp_nexthop *nh, bool force,
158				char *ratr_pl);
159void mlxsw_sp_nexthop_counter_alloc(struct mlxsw_sp *mlxsw_sp,
160				    struct mlxsw_sp_nexthop *nh);
161void mlxsw_sp_nexthop_counter_free(struct mlxsw_sp *mlxsw_sp,
162				   struct mlxsw_sp_nexthop *nh);
163
164static inline bool mlxsw_sp_l3addr_eq(const union mlxsw_sp_l3addr *addr1,
165				      const union mlxsw_sp_l3addr *addr2)
166{
167	return !memcmp(addr1, addr2, sizeof(*addr1));
168}
169
170int mlxsw_sp_ipip_ecn_encap_init(struct mlxsw_sp *mlxsw_sp);
171int mlxsw_sp_ipip_ecn_decap_init(struct mlxsw_sp *mlxsw_sp);
172struct net_device *
173mlxsw_sp_ipip_netdev_ul_dev_get(const struct net_device *ol_dev);
174int mlxsw_sp_router_bridge_vlan_add(struct mlxsw_sp *mlxsw_sp,
175				    struct net_device *dev,
176				    u16 new_vid, bool is_pvid,
177				    struct netlink_ext_ack *extack);
178int mlxsw_sp_router_port_join_lag(struct mlxsw_sp_port *mlxsw_sp_port,
179				  struct net_device *lag_dev,
180				  struct netlink_ext_ack *extack);
181void mlxsw_sp_router_port_leave_lag(struct mlxsw_sp_port *mlxsw_sp_port,
182				    struct net_device *lag_dev);
183int mlxsw_sp_netdevice_enslavement_replay(struct mlxsw_sp *mlxsw_sp,
184					  struct net_device *upper_dev,
185					  struct netlink_ext_ack *extack);
186void mlxsw_sp_netdevice_deslavement_replay(struct mlxsw_sp *mlxsw_sp,
187					   struct net_device *dev);
188
189#endif /* _MLXSW_ROUTER_H_*/
190