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| author | Andrii Nakryiko <andrii@kernel.org> | 2021-11-24 20:32:30 +0100 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2021-11-25 23:35:46 +0100 |
| commit | 992c4225419a38663d6239bc2f525b4ac0429188 (patch) | |
| tree | 79400371e8ce6ff3de4e70f99d55c88f7ef2f19a /tools/lib/bpf/bpf.h | |
| parent | selftests/bpf: Mix legacy (maps) and modern (vars) BPF in one test (diff) | |
| download | linux-992c4225419a38663d6239bc2f525b4ac0429188.tar.xz linux-992c4225419a38663d6239bc2f525b4ac0429188.zip | |
libbpf: Unify low-level map creation APIs w/ new bpf_map_create()
Mark the entire zoo of low-level map creation APIs for deprecation in
libbpf 0.7 ([0]) and introduce a new bpf_map_create() API that is
OPTS-based (and thus future-proof) and matches the BPF_MAP_CREATE
command name.
While at it, ensure that gen_loader sends map_extra field. Also remove
now unneeded btf_key_type_id/btf_value_type_id logic that libbpf is
doing anyways.
[0] Closes: https://github.com/libbpf/libbpf/issues/282
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211124193233.3115996-2-andrii@kernel.org
Diffstat (limited to 'tools/lib/bpf/bpf.h')
| -rw-r--r-- | tools/lib/bpf/bpf.h | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h index 079cc81ac51e..70b6f44fc8b0 100644 --- a/tools/lib/bpf/bpf.h +++ b/tools/lib/bpf/bpf.h @@ -35,6 +35,30 @@ extern "C" { #endif +struct bpf_map_create_opts { + size_t sz; /* size of this struct for forward/backward compatibility */ + + __u32 btf_fd; + __u32 btf_key_type_id; + __u32 btf_value_type_id; + __u32 btf_vmlinux_value_type_id; + + int inner_map_fd; + int map_flags; + __u64 map_extra; + + int numa_node; + int map_ifindex; +}; +#define bpf_map_create_opts__last_field map_ifindex + +LIBBPF_API int bpf_map_create(enum bpf_map_type map_type, + const char *map_name, + __u32 key_size, + __u32 value_size, + __u32 max_entries, + const struct bpf_map_create_opts *opts); + struct bpf_create_map_attr { const char *name; enum bpf_map_type map_type; @@ -53,20 +77,25 @@ struct bpf_create_map_attr { }; }; -LIBBPF_API int -bpf_create_map_xattr(const struct bpf_create_map_attr *create_attr); +LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_map_create() instead") +LIBBPF_API int bpf_create_map_xattr(const struct bpf_create_map_attr *create_attr); +LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_map_create() instead") LIBBPF_API int bpf_create_map_node(enum bpf_map_type map_type, const char *name, int key_size, int value_size, int max_entries, __u32 map_flags, int node); +LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_map_create() instead") LIBBPF_API int bpf_create_map_name(enum bpf_map_type map_type, const char *name, int key_size, int value_size, int max_entries, __u32 map_flags); +LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_map_create() instead") LIBBPF_API int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size, int max_entries, __u32 map_flags); +LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_map_create() instead") LIBBPF_API int bpf_create_map_in_map_node(enum bpf_map_type map_type, const char *name, int key_size, int inner_map_fd, int max_entries, __u32 map_flags, int node); +LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_map_create() instead") LIBBPF_API int bpf_create_map_in_map(enum bpf_map_type map_type, const char *name, int key_size, int inner_map_fd, int max_entries, |