1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
|
/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
/* Copyright (c) 2017-2018 Mellanox Technologies. All rights reserved */
#ifndef _MLXSW_ROUTER_H_
#define _MLXSW_ROUTER_H_
#include "spectrum.h"
#include "reg.h"
struct mlxsw_sp_router_nve_decap {
u32 ul_tb_id;
u32 tunnel_index;
enum mlxsw_sp_l3proto ul_proto;
union mlxsw_sp_l3addr ul_sip;
u8 valid:1;
};
struct mlxsw_sp_fib_entry_op_ctx {
u8 bulk_ok:1, /* Indicate to the low-level op it is ok to bulk
* the actual entry with the one that is the next
* in queue.
*/
initialized:1; /* Bit that the low-level op sets in case
* the context priv is initialized.
*/
struct list_head fib_entry_priv_list;
unsigned long event;
unsigned long ll_priv[];
};
static inline void
mlxsw_sp_fib_entry_op_ctx_clear(struct mlxsw_sp_fib_entry_op_ctx *op_ctx)
{
WARN_ON_ONCE(!list_empty(&op_ctx->fib_entry_priv_list));
memset(op_ctx, 0, sizeof(*op_ctx));
INIT_LIST_HEAD(&op_ctx->fib_entry_priv_list);
}
struct mlxsw_sp_router {
struct mlxsw_sp *mlxsw_sp;
struct mlxsw_sp_rif **rifs;
struct mlxsw_sp_vr *vrs;
struct rhashtable neigh_ht;
struct rhashtable nexthop_group_ht;
struct rhashtable nexthop_ht;
struct list_head nexthop_list;
struct {
/* One tree for each protocol: IPv4 and IPv6 */
struct mlxsw_sp_lpm_tree *proto_trees[2];
struct mlxsw_sp_lpm_tree *trees;
unsigned int tree_count;
} lpm;
struct {
struct delayed_work dw;
unsigned long interval; /* ms */
} neighs_update;
struct delayed_work nexthop_probe_dw;
#define MLXSW_SP_UNRESOLVED_NH_PROBE_INTERVAL 5000 /* ms */
struct list_head nexthop_neighs_list;
struct list_head ipip_list;
bool aborted;
struct notifier_block nexthop_nb;
struct notifier_block fib_nb;
struct notifier_block netevent_nb;
struct notifier_block inetaddr_nb;
struct notifier_block inet6addr_nb;
const struct mlxsw_sp_rif_ops **rif_ops_arr;
const struct mlxsw_sp_ipip_ops **ipip_ops_arr;
u32 adj_discard_index;
bool adj_discard_index_valid;
struct mlxsw_sp_router_nve_decap nve_decap_config;
struct mutex lock; /* Protects shared router resources */
struct work_struct fib_event_work;
struct list_head fib_event_queue;
spinlock_t fib_event_queue_lock; /* Protects fib event queue list */
/* One set of ops for each protocol: IPv4 and IPv6 */
const struct mlxsw_sp_router_ll_ops *proto_ll_ops[MLXSW_SP_L3_PROTO_MAX];
struct mlxsw_sp_fib_entry_op_ctx *ll_op_ctx;
u16 lb_rif_index;
struct mlxsw_sp_router_xm *xm;
};
struct mlxsw_sp_fib_entry_priv {
refcount_t refcnt;
struct list_head list; /* Member in op_ctx->fib_entry_priv_list */
unsigned long priv[];
};
enum mlxsw_sp_fib_entry_op {
MLXSW_SP_FIB_ENTRY_OP_WRITE,
MLXSW_SP_FIB_ENTRY_OP_UPDATE,
MLXSW_SP_FIB_ENTRY_OP_DELETE,
};
/* Low-level router ops. Basically this is to handle the different
* register sets to work with ordinary and XM trees and FIB entries.
*/
struct mlxsw_sp_router_ll_ops {
int (*init)(struct mlxsw_sp *mlxsw_sp, u16 vr_id,
enum mlxsw_sp_l3proto proto);
int (*ralta_write)(struct mlxsw_sp *mlxsw_sp, char *xralta_pl);
int (*ralst_write)(struct mlxsw_sp *mlxsw_sp, char *xralst_pl);
int (*raltb_write)(struct mlxsw_sp *mlxsw_sp, char *xraltb_pl);
size_t fib_entry_op_ctx_size;
size_t fib_entry_priv_size;
void (*fib_entry_pack)(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
enum mlxsw_sp_l3proto proto, enum mlxsw_sp_fib_entry_op op,
u16 virtual_router, u8 prefix_len, unsigned char *addr,
struct mlxsw_sp_fib_entry_priv *priv);
void (*fib_entry_act_remote_pack)(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
enum mlxsw_reg_ralue_trap_action trap_action,
u16 trap_id, u32 adjacency_index, u16 ecmp_size);
void (*fib_entry_act_local_pack)(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
enum mlxsw_reg_ralue_trap_action trap_action,
u16 trap_id, u16 local_erif);
void (*fib_entry_act_ip2me_pack)(struct mlxsw_sp_fib_entry_op_ctx *op_ctx);
void (*fib_entry_act_ip2me_tun_pack)(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
u32 tunnel_ptr);
int (*fib_entry_commit)(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
bool *postponed_for_bulk);
bool (*fib_entry_is_committed)(struct mlxsw_sp_fib_entry_priv *priv);
};
struct mlxsw_sp_rif_ipip_lb;
struct mlxsw_sp_rif_ipip_lb_config {
enum mlxsw_reg_ritr_loopback_ipip_type lb_ipipt;
u32 okey;
enum mlxsw_sp_l3proto ul_protocol; /* Underlay. */
union mlxsw_sp_l3addr saddr;
};
enum mlxsw_sp_rif_counter_dir {
MLXSW_SP_RIF_COUNTER_INGRESS,
MLXSW_SP_RIF_COUNTER_EGRESS,
};
struct mlxsw_sp_neigh_entry;
struct mlxsw_sp_nexthop;
struct mlxsw_sp_ipip_entry;
struct mlxsw_sp_rif *mlxsw_sp_rif_by_index(const struct mlxsw_sp *mlxsw_sp,
u16 rif_index);
u16 mlxsw_sp_rif_index(const struct mlxsw_sp_rif *rif);
u16 mlxsw_sp_ipip_lb_rif_index(const struct mlxsw_sp_rif_ipip_lb *rif);
u16 mlxsw_sp_ipip_lb_ul_vr_id(const struct mlxsw_sp_rif_ipip_lb *rif);
u16 mlxsw_sp_ipip_lb_ul_rif_id(const struct mlxsw_sp_rif_ipip_lb *lb_rif);
u32 mlxsw_sp_ipip_dev_ul_tb_id(const struct net_device *ol_dev);
int mlxsw_sp_rif_dev_ifindex(const struct mlxsw_sp_rif *rif);
const struct net_device *mlxsw_sp_rif_dev(const struct mlxsw_sp_rif *rif);
int mlxsw_sp_rif_counter_value_get(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_rif *rif,
enum mlxsw_sp_rif_counter_dir dir,
u64 *cnt);
void mlxsw_sp_rif_counter_free(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_rif *rif,
enum mlxsw_sp_rif_counter_dir dir);
int mlxsw_sp_rif_counter_alloc(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_rif *rif,
enum mlxsw_sp_rif_counter_dir dir);
struct mlxsw_sp_neigh_entry *
mlxsw_sp_rif_neigh_next(struct mlxsw_sp_rif *rif,
struct mlxsw_sp_neigh_entry *neigh_entry);
int mlxsw_sp_neigh_entry_type(struct mlxsw_sp_neigh_entry *neigh_entry);
unsigned char *
mlxsw_sp_neigh_entry_ha(struct mlxsw_sp_neigh_entry *neigh_entry);
u32 mlxsw_sp_neigh4_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry);
struct in6_addr *
mlxsw_sp_neigh6_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry);
#define mlxsw_sp_rif_neigh_for_each(neigh_entry, rif) \
for (neigh_entry = mlxsw_sp_rif_neigh_next(rif, NULL); neigh_entry; \
neigh_entry = mlxsw_sp_rif_neigh_next(rif, neigh_entry))
int mlxsw_sp_neigh_counter_get(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_neigh_entry *neigh_entry,
u64 *p_counter);
void
mlxsw_sp_neigh_entry_counter_update(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_neigh_entry *neigh_entry,
bool adding);
bool mlxsw_sp_neigh_ipv6_ignore(struct mlxsw_sp_neigh_entry *neigh_entry);
int __mlxsw_sp_ipip_entry_update_tunnel(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_ipip_entry *ipip_entry,
bool recreate_loopback,
bool keep_encap,
bool update_nexthops,
struct netlink_ext_ack *extack);
void mlxsw_sp_ipip_entry_demote_tunnel(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_ipip_entry *ipip_entry);
bool
mlxsw_sp_ipip_demote_tunnel_by_saddr(struct mlxsw_sp *mlxsw_sp,
enum mlxsw_sp_l3proto ul_proto,
union mlxsw_sp_l3addr saddr,
u32 ul_tb_id,
const struct mlxsw_sp_ipip_entry *except);
struct mlxsw_sp_nexthop *mlxsw_sp_nexthop_next(struct mlxsw_sp_router *router,
struct mlxsw_sp_nexthop *nh);
bool mlxsw_sp_nexthop_offload(struct mlxsw_sp_nexthop *nh);
unsigned char *mlxsw_sp_nexthop_ha(struct mlxsw_sp_nexthop *nh);
int mlxsw_sp_nexthop_indexes(struct mlxsw_sp_nexthop *nh, u32 *p_adj_index,
u32 *p_adj_size, u32 *p_adj_hash_index);
struct mlxsw_sp_rif *mlxsw_sp_nexthop_rif(struct mlxsw_sp_nexthop *nh);
bool mlxsw_sp_nexthop_group_has_ipip(struct mlxsw_sp_nexthop *nh);
bool mlxsw_sp_nexthop_is_discard(const struct mlxsw_sp_nexthop *nh);
#define mlxsw_sp_nexthop_for_each(nh, router) \
for (nh = mlxsw_sp_nexthop_next(router, NULL); nh; \
nh = mlxsw_sp_nexthop_next(router, nh))
int mlxsw_sp_nexthop_counter_get(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_nexthop *nh, u64 *p_counter);
int mlxsw_sp_nexthop_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index,
struct mlxsw_sp_nexthop *nh);
void mlxsw_sp_nexthop_counter_alloc(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_nexthop *nh);
void mlxsw_sp_nexthop_counter_free(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_nexthop *nh);
static inline bool mlxsw_sp_l3addr_eq(const union mlxsw_sp_l3addr *addr1,
const union mlxsw_sp_l3addr *addr2)
{
return !memcmp(addr1, addr2, sizeof(*addr1));
}
int mlxsw_sp_ipip_ecn_encap_init(struct mlxsw_sp *mlxsw_sp);
int mlxsw_sp_ipip_ecn_decap_init(struct mlxsw_sp *mlxsw_sp);
extern const struct mlxsw_sp_router_ll_ops mlxsw_sp_router_ll_xm_ops;
int mlxsw_sp_router_xm_init(struct mlxsw_sp *mlxsw_sp);
void mlxsw_sp_router_xm_fini(struct mlxsw_sp *mlxsw_sp);
bool mlxsw_sp_router_xm_ipv4_is_supported(const struct mlxsw_sp *mlxsw_sp);
#endif /* _MLXSW_ROUTER_H_*/
|
