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| author | Willem de Bruijn | 2014-08-05 04:11:48 +0200 |
|---|---|---|
| committer | David S. Miller | 2014-08-06 01:35:54 +0200 |
| commit | e7fd2885385157d46c85f282fc6d7d297db43e1f (patch) | |
| tree | 14e9d00ed87b2b45882c8cb8dd1b9b4d221724f8 /include/uapi/linux/net_tstamp.h | |
| parent | net-timestamp: add key to disambiguate concurrent datagrams (diff) | |
| download | kernel-qcow2-linux-e7fd2885385157d46c85f282fc6d7d297db43e1f.tar.gz kernel-qcow2-linux-e7fd2885385157d46c85f282fc6d7d297db43e1f.tar.xz kernel-qcow2-linux-e7fd2885385157d46c85f282fc6d7d297db43e1f.zip | |
net-timestamp: SCHED timestamp on entering packet scheduler
Kernel transmit latency is often incurred in the packet scheduler.
Introduce a new timestamp on transmission just before entering the
scheduler. When data travels through multiple devices (bonding,
tunneling, ...) each device will export an individual timestamp.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi/linux/net_tstamp.h')
| -rw-r--r-- | include/uapi/linux/net_tstamp.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/uapi/linux/net_tstamp.h b/include/uapi/linux/net_tstamp.h index 1e861d2e1a31..60733845fcdd 100644 --- a/include/uapi/linux/net_tstamp.h +++ b/include/uapi/linux/net_tstamp.h @@ -21,8 +21,9 @@ enum { SOF_TIMESTAMPING_SYS_HARDWARE = (1<<5), SOF_TIMESTAMPING_RAW_HARDWARE = (1<<6), SOF_TIMESTAMPING_OPT_ID = (1<<7), + SOF_TIMESTAMPING_TX_SCHED = (1<<8), - SOF_TIMESTAMPING_LAST = SOF_TIMESTAMPING_OPT_ID, + SOF_TIMESTAMPING_LAST = SOF_TIMESTAMPING_TX_SCHED, SOF_TIMESTAMPING_MASK = (SOF_TIMESTAMPING_LAST - 1) | SOF_TIMESTAMPING_LAST }; |