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| author | Martin KaFai Lau <kafai@fb.com> | 2017-03-22 10:00:35 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-03-22 15:45:45 -0700 |
| commit | fb30d4b71214aa1811e997f8f753b14b46d5b912 (patch) | |
| tree | a546eefbd355792aa544c0f220b38bab4493b1aa /samples/bpf/bpf_load.c | |
| parent | bcc6b1b7ebf857a9fe56202e2be3361131588c15 (diff) | |
| download | linux-fb30d4b71214aa1811e997f8f753b14b46d5b912.tar.bz2 | |
bpf: Add tests for map-in-map
Test cases for array of maps and hash of maps.
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples/bpf/bpf_load.c')
| -rw-r--r-- | samples/bpf/bpf_load.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/samples/bpf/bpf_load.c b/samples/bpf/bpf_load.c index b86ee54da2d1..dcdce1270d38 100644 --- a/samples/bpf/bpf_load.c +++ b/samples/bpf/bpf_load.c @@ -43,6 +43,7 @@ struct bpf_map_def { unsigned int value_size; unsigned int max_entries; unsigned int map_flags; + unsigned int inner_map_idx; }; static int populate_prog_array(const char *event, int prog_fd) @@ -198,11 +199,22 @@ static int load_maps(struct bpf_map_def *maps, int len) for (i = 0; i < len / sizeof(struct bpf_map_def); i++) { - map_fd[i] = bpf_create_map(maps[i].type, - maps[i].key_size, - maps[i].value_size, - maps[i].max_entries, - maps[i].map_flags); + if (maps[i].type == BPF_MAP_TYPE_ARRAY_OF_MAPS || + maps[i].type == BPF_MAP_TYPE_HASH_OF_MAPS) { + int inner_map_fd = map_fd[maps[i].inner_map_idx]; + + map_fd[i] = bpf_create_map_in_map(maps[i].type, + maps[i].key_size, + inner_map_fd, + maps[i].max_entries, + maps[i].map_flags); + } else { + map_fd[i] = bpf_create_map(maps[i].type, + maps[i].key_size, + maps[i].value_size, + maps[i].max_entries, + maps[i].map_flags); + } if (map_fd[i] < 0) { printf("failed to create a map: %d %s\n", errno, strerror(errno)); |