lpm_trie_map.c

 1// SPDX-License-Identifier: GPL-2.0
 2#include <linux/bpf.h>
 3#include <bpf/bpf_helpers.h>
 4#include <bpf/bpf_tracing.h>
 5
 6#define MAX_ENTRIES 100000000
 7
 8struct trie_key {
 9	__u32 prefixlen;
10	__u32 data;
11};
12
13struct {
14	__uint(type, BPF_MAP_TYPE_LPM_TRIE);
15	__type(key, struct trie_key);
16	__type(value, __u32);
17	__uint(map_flags, BPF_F_NO_PREALLOC);
18	__uint(max_entries, MAX_ENTRIES);
19} trie_free_map SEC(".maps");