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| author |   Patrick Ohly <patrick.ohly@intel.com> | 2009-02-12 05:03:39 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2009-02-15 22:43:38 -0800 |
| commit | 51f31cabe3ce5345b51e4a4f82138b38c4d5dc91 (patch) | |
| tree | f59504adbbe37e6e28ac78e6a49f045508daa78e /Documentation/networking/timestamping.txt | |
| parent | net: socket infrastructure for SO_TIMESTAMPING (diff) | |
| download | linux-dev-51f31cabe3ce5345b51e4a4f82138b38c4d5dc91.tar.xz linux-dev-51f31cabe3ce5345b51e4a4f82138b38c4d5dc91.zip | |
ip: support for TX timestamps on UDP and RAW sockets
Instructions for time stamping outgoing packets are take from the
socket layer and later copied into the new skb.
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking/timestamping.txt')
| -rw-r--r-- | Documentation/networking/timestamping.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/networking/timestamping.txt b/Documentation/networking/timestamping.txt index a681a65b5bc7..0e58b4539176 100644 --- a/Documentation/networking/timestamping.txt +++ b/Documentation/networking/timestamping.txt @@ -56,6 +56,8 @@ and including the link layer, the scm_timestamping control message and a sock_extended_err control message with ee_errno==ENOMSG and ee_origin==SO_EE_ORIGIN_TIMESTAMPING. A socket with such a pending bounced packet is ready for reading as far as select() is concerned. +If the outgoing packet has to be fragmented, then only the first +fragment is time stamped and returned to the sending socket. All three values correspond to the same event in time, but were generated in different ways. Each of these values may be empty (= all |