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| author | Wang Nan <wangnan0@huawei.com> | 2016-02-22 09:10:34 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-02-22 12:48:50 -0300 |
| commit | 2d055bf253c0d606c5de3fe7749e3188080780ad (patch) | |
| tree | 54a286894a124b58554ffa22a7b49ccfd541413e /tools/perf/util/bpf-loader.h | |
| parent | 7630b3e28dd827fffad13cc0aada14b00ec524d9 (diff) | |
| download | lwn-2d055bf253c0d606c5de3fe7749e3188080780ad.tar.gz lwn-2d055bf253c0d606c5de3fe7749e3188080780ad.zip | |
perf tools: Support setting different slots in a BPF map separately
This patch introduces basic facilities to support config different slots
in a BPF map one by one.
array.nr_ranges and array.ranges are introduced into 'struct
parse_events_term', where ranges is an array of indices range (start,
length) which will be configured by this config term. nr_ranges is the
size of the array. The array is passed to 'struct bpf_map_priv'. To
indicate the new type of configuration, BPF_MAP_KEY_RANGES is added as a
new key type. bpf_map_config_foreach_key() is extended to iterate over
those indices instead of all possible keys.
Code in this commit will be enabled by following commit which enables
the indices syntax for array configuration.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Cody P Schafer <dev@codyps.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jeremie Galarneau <jeremie.galarneau@efficios.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kirill Smelkov <kirr@nexedi.com>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1456132275-98875-8-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/bpf-loader.h')
| -rw-r--r-- | tools/perf/util/bpf-loader.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/bpf-loader.h b/tools/perf/util/bpf-loader.h index 7c7689f800cf..be4311944e3d 100644 --- a/tools/perf/util/bpf-loader.h +++ b/tools/perf/util/bpf-loader.h @@ -38,6 +38,7 @@ enum bpf_loader_errno { BPF_LOADER_ERRNO__OBJCONF_MAP_EVTDIM, /* Event dimension too large */ BPF_LOADER_ERRNO__OBJCONF_MAP_EVTINH, /* Doesn't support inherit event */ BPF_LOADER_ERRNO__OBJCONF_MAP_EVTTYPE, /* Wrong event type for map */ + BPF_LOADER_ERRNO__OBJCONF_MAP_IDX2BIG, /* Index too large */ __BPF_LOADER_ERRNO__END, }; |