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author | Yonghong Song <yhs@fb.com> | 2020-01-15 10:43:06 -0800 |
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committer | Alexei Starovoitov <ast@kernel.org> | 2020-01-15 14:00:35 -0800 |
commit | 2ab3d86ea1859d1a4b830ce3551cba725620593a (patch) | |
tree | 0cd83172075796074ac3c27f58ba14e7c3f0ff7e /tools/lib/bpf/bpf.h | |
parent | tools/bpf: Sync uapi header bpf.h (diff) | |
download | linux-dev-2ab3d86ea1859d1a4b830ce3551cba725620593a.tar.xz linux-dev-2ab3d86ea1859d1a4b830ce3551cba725620593a.zip |
libbpf: Add libbpf support to batch ops
Added four libbpf API functions to support map batch operations:
. int bpf_map_delete_batch( ... )
. int bpf_map_lookup_batch( ... )
. int bpf_map_lookup_and_delete_batch( ... )
. int bpf_map_update_batch( ... )
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200115184308.162644-8-brianvv@google.com
Diffstat (limited to 'tools/lib/bpf/bpf.h')
-rw-r--r-- | tools/lib/bpf/bpf.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h index 56341d117e5b..b976e77316cc 100644 --- a/tools/lib/bpf/bpf.h +++ b/tools/lib/bpf/bpf.h @@ -127,6 +127,28 @@ LIBBPF_API int bpf_map_lookup_and_delete_elem(int fd, const void *key, LIBBPF_API int bpf_map_delete_elem(int fd, const void *key); LIBBPF_API int bpf_map_get_next_key(int fd, const void *key, void *next_key); LIBBPF_API int bpf_map_freeze(int fd); + +struct bpf_map_batch_opts { + size_t sz; /* size of this struct for forward/backward compatibility */ + __u64 elem_flags; + __u64 flags; +}; +#define bpf_map_batch_opts__last_field flags + +LIBBPF_API int bpf_map_delete_batch(int fd, void *keys, + __u32 *count, + const struct bpf_map_batch_opts *opts); +LIBBPF_API int bpf_map_lookup_batch(int fd, void *in_batch, void *out_batch, + void *keys, void *values, __u32 *count, + const struct bpf_map_batch_opts *opts); +LIBBPF_API int bpf_map_lookup_and_delete_batch(int fd, void *in_batch, + void *out_batch, void *keys, + void *values, __u32 *count, + const struct bpf_map_batch_opts *opts); +LIBBPF_API int bpf_map_update_batch(int fd, void *keys, void *values, + __u32 *count, + const struct bpf_map_batch_opts *opts); + LIBBPF_API int bpf_obj_pin(int fd, const char *pathname); LIBBPF_API int bpf_obj_get(const char *pathname); |