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| author |   Jason Xing <kerneljasonxing@gmail.com> | 2025-02-20 15:29:34 +0800 |
|---|---|---|
| committer |   Martin KaFai Lau <martin.lau@kernel.org> | 2025-02-20 14:29:24 -0800 |
| commit | 6b98ec7e882af1c3088a88757e2226d06c8514f9 (patch) | |
| tree | bc8788a4e1a836f3ea694d5405b0e10eebe10b77 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | net-timestamp: Prepare for isolating two modes of SO_TIMESTAMPING (diff) | |
| download | wireguard-linux-6b98ec7e882af1c3088a88757e2226d06c8514f9.tar.xz wireguard-linux-6b98ec7e882af1c3088a88757e2226d06c8514f9.zip | |
bpf: Add BPF_SOCK_OPS_TSTAMP_SCHED_CB callback
Support SCM_TSTAMP_SCHED case for bpf timestamping.
Add a new sock_ops callback, BPF_SOCK_OPS_TSTAMP_SCHED_CB. This
callback will occur at the same timestamping point as the user
space's SCM_TSTAMP_SCHED. The BPF program can use it to get the
same SCM_TSTAMP_SCHED timestamp without modifying the user-space
application.
A new SKBTX_BPF flag is added to mark skb_shinfo(skb)->tx_flags,
ensuring that the new BPF timestamping and the current user
space's SO_TIMESTAMPING do not interfere with each other.
Signed-off-by: Jason Xing <kerneljasonxing@gmail.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250220072940.99994-7-kerneljasonxing@gmail.com
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions