diff options
| author | Martin KaFai Lau <kafai@fb.com> | 2017-03-22 18:00:35 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-03-22 23:45:45 +0100 |
| commit | fb30d4b71214aa1811e997f8f753b14b46d5b912 (patch) | |
| tree | a546eefbd355792aa544c0f220b38bab4493b1aa /tools/lib/bpf | |
| parent | bpf: Add hash of maps support (diff) | |
| download | linux-fb30d4b71214aa1811e997f8f753b14b46d5b912.tar.xz linux-fb30d4b71214aa1811e997f8f753b14b46d5b912.zip | |
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 'tools/lib/bpf')
| -rw-r--r-- | tools/lib/bpf/bpf.c | 17 | ||||
| -rw-r--r-- | tools/lib/bpf/bpf.h | 2 |
2 files changed, 19 insertions, 0 deletions
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c index 207c2eeddab0..9b58d20e8c93 100644 --- a/tools/lib/bpf/bpf.c +++ b/tools/lib/bpf/bpf.c @@ -69,6 +69,23 @@ int bpf_create_map(enum bpf_map_type map_type, int key_size, return sys_bpf(BPF_MAP_CREATE, &attr, sizeof(attr)); } +int bpf_create_map_in_map(enum bpf_map_type map_type, int key_size, + int inner_map_fd, int max_entries, __u32 map_flags) +{ + union bpf_attr attr; + + memset(&attr, '\0', sizeof(attr)); + + attr.map_type = map_type; + attr.key_size = key_size; + attr.value_size = 4; + attr.inner_map_fd = inner_map_fd; + attr.max_entries = max_entries; + attr.map_flags = map_flags; + + return sys_bpf(BPF_MAP_CREATE, &attr, sizeof(attr)); +} + int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns, size_t insns_cnt, const char *license, __u32 kern_version, char *log_buf, size_t log_buf_sz) diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h index 09c3dcac0496..93f021932623 100644 --- a/tools/lib/bpf/bpf.h +++ b/tools/lib/bpf/bpf.h @@ -26,6 +26,8 @@ int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size, int max_entries, __u32 map_flags); +int bpf_create_map_in_map(enum bpf_map_type map_type, int key_size, + int inner_map_fd, int max_entries, __u32 map_flags); /* Recommend log buffer size */ #define BPF_LOG_BUF_SIZE 65536 |