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| author |   Jason Xing <kerneljasonxing@gmail.com> | 2025-02-20 15:29:37 +0800 |
|---|---|---|
| committer |   Martin KaFai Lau <martin.lau@kernel.org> | 2025-02-20 14:29:43 -0800 |
| commit | b3b81e6b009dd8f85cd3b9c65eb492249c2649a8 (patch) | |
| tree | ab5f6727c4276805bf7dc4b773c2b2636a4e66d0 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | bpf: Add BPF_SOCK_OPS_TSTAMP_SND_HW_CB callback (diff) | |
| download | wireguard-linux-b3b81e6b009dd8f85cd3b9c65eb492249c2649a8.tar.xz wireguard-linux-b3b81e6b009dd8f85cd3b9c65eb492249c2649a8.zip | |
bpf: Add BPF_SOCK_OPS_TSTAMP_ACK_CB callback
Support the ACK case for bpf timestamping.
Add a new sock_ops callback, BPF_SOCK_OPS_TSTAMP_ACK_CB. This
callback will occur at the same timestamping point as the user
space's SCM_TSTAMP_ACK. The BPF program can use it to get the
same SCM_TSTAMP_ACK timestamp without modifying the user-space
application.
This patch extends txstamp_ack to two bits: 1 stands for
SO_TIMESTAMPING mode, 2 bpf extension.
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/20250220072940.99994-10-kerneljasonxing@gmail.com
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions