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