Re: Is it possible to get Rx timestamps in skb->tstamp?

[David Howells]

Toke Høiland-Jørgensen  wrote:

> > Is it possible to tell a UDP socket that you'd like it to put
> > reception timestamps in skb->tstamp?
> 
> I think you probably want SO_TIMESTAMP*?
> 
> See 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/networking/timestamping.txt

That seems to work.  I thought that only affected recvmsg() putting the
timestamp into the ancillary data buffer, but apparently not.

Thanks,
David

Re: Is it possible to get Rx timestamps in skb->tstamp?

[Toke Høiland-Jørgensen]

David Howells  writes:

> Hi,
>
> Is it possible to tell a UDP socket that you'd like it to put
> reception timestamps in skb->tstamp?

I think you probably want SO_TIMESTAMP*?

See 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/networking/timestamping.txt

-Toke

Is it possible to get Rx timestamps in skb->tstamp?

[David Howells]

Hi,

Is it possible to tell a UDP socket that you'd like it to put reception
timestamps in skb->tstamp?

For some reason, I seem to remember that the kernel used to put something in
there - and AF_RXRPC makes use of it.

David