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| author | Pauli Virtanen <[email protected]> | 2025-03-18 19:06:43 +0000 |
|---|---|---|
| committer | Luiz Augusto von Dentz <[email protected]> | 2025-03-25 16:49:38 +0000 |
| commit | 134f4b39df7b77225a80ef585c15d46f964f5e6f (patch) | |
| tree | 1b31495e10d88407bb96b3b3ea0454d82b8a763c /net/unix/sysctl_net_unix.c | |
| parent | net-timestamp: COMPLETION timestamp on packet tx completion (diff) | |
| download | kernel-134f4b39df7b77225a80ef585c15d46f964f5e6f.tar.gz kernel-134f4b39df7b77225a80ef585c15d46f964f5e6f.zip | |
Bluetooth: add support for skb TX SND/COMPLETION timestamping
Support enabling TX timestamping for some skbs, and track them until
packet completion. Generate software SCM_TSTAMP_COMPLETION when getting
completion report from hardware.
Generate software SCM_TSTAMP_SND before sending to driver. Sending from
driver requires changes in the driver API, and drivers mostly are going
to send the skb immediately.
Make the default situation with no COMPLETION TX timestamping more
efficient by only counting packets in the queue when there is nothing to
track. When there is something to track, we need to make clones, since
the driver may modify sent skbs.
The tx_q queue length is bounded by the hdev flow control, which will
not send new packets before it has got completion reports for old ones.
Signed-off-by: Pauli Virtanen <[email protected]>
Reviewed-by: Willem de Bruijn <[email protected]>
Signed-off-by: Luiz Augusto von Dentz <[email protected]>
Diffstat (limited to 'net/unix/sysctl_net_unix.c')
0 files changed, 0 insertions, 0 deletions