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| author | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2021-08-21 05:49:57 +0530 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2021-08-24 14:48:41 -0700 |
| commit | d771e217506adcfbfb08c693fb9332ee4859d61d (patch) | |
| tree | 5b3053b3f52d3719c98b319a34416ca1ac9dabc6 /samples/bpf/xdp_sample_user.h | |
| parent | 0cf3c2fc4b1afbd8d9c376754af34c1d2bd56de7 (diff) | |
| download | lwn-d771e217506adcfbfb08c693fb9332ee4859d61d.tar.gz lwn-d771e217506adcfbfb08c693fb9332ee4859d61d.zip | |
samples: bpf: Add cpumap tracepoint statistics support
This consolidates retrieval and printing into the XDP sample helper. For
the kthread stats, it expands xdp_stats separately with its own per-CPU
stats. For cpumap enqueue, we display FROM->TO stats also with its
per-CPU stats.
The help out explains in detail the various aspects of the output.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210821002010.845777-10-memxor@gmail.com
Diffstat (limited to 'samples/bpf/xdp_sample_user.h')
| -rw-r--r-- | samples/bpf/xdp_sample_user.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/samples/bpf/xdp_sample_user.h b/samples/bpf/xdp_sample_user.h index aa28e4bdd628..203732615fee 100644 --- a/samples/bpf/xdp_sample_user.h +++ b/samples/bpf/xdp_sample_user.h @@ -11,6 +11,8 @@ enum stats_mask { _SAMPLE_REDIRECT_MAP = 1U << 0, SAMPLE_RX_CNT = 1U << 1, SAMPLE_REDIRECT_ERR_CNT = 1U << 2, + SAMPLE_CPUMAP_ENQUEUE_CNT = 1U << 3, + SAMPLE_CPUMAP_KTHREAD_CNT = 1U << 4, SAMPLE_EXCEPTION_CNT = 1U << 5, SAMPLE_REDIRECT_CNT = 1U << 7, SAMPLE_REDIRECT_MAP_CNT = SAMPLE_REDIRECT_CNT | _SAMPLE_REDIRECT_MAP, @@ -76,6 +78,10 @@ static inline char *safe_strncpy(char *dst, const char *src, size_t size) __attach_tp(tp_xdp_redirect_map_err); \ if (mask & SAMPLE_REDIRECT_ERR_CNT) \ __attach_tp(tp_xdp_redirect_err); \ + if (mask & SAMPLE_CPUMAP_ENQUEUE_CNT) \ + __attach_tp(tp_xdp_cpumap_enqueue); \ + if (mask & SAMPLE_CPUMAP_KTHREAD_CNT) \ + __attach_tp(tp_xdp_cpumap_kthread); \ if (mask & SAMPLE_EXCEPTION_CNT) \ __attach_tp(tp_xdp_exception); \ return 0; \ |