Re: TX time stamping

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From: Herbert Xu
Date: Thursday, March 19, 2009 - 7:10 pm

On Thu, Mar 19, 2009 at 02:05:09PM -0700, David Miller wrote:

Yes, we need to spend a bit more time pondering the semantics
of all this.

First of all, if a packet bifurcates and is transmitted through
two interfaces both capable of timestamping, which event do we
take as the timestamp of the original packet?

As to the problem of skb->sk, I don't think that's even needed
as we can simply use the skb shared area as the communication
medium.  However, for that to work we need to figure out what
we do when the packet becomes two independent entities, hence
we need to resolve the above question first.

Cheers,
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Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
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Messages in current thread:
TX time stamping, Patrick Ohly, (Tue Mar 3, 11:31 am)
Re: TX time stamping, David Miller, (Thu Mar 19, 2:05 pm)
Re: TX time stamping, Herbert Xu, (Thu Mar 19, 7:10 pm)
Re: TX time stamping, Patrick Ohly, (Wed Mar 25, 12:08 am)
Re: TX time stamping, Herbert Xu, (Thu Mar 26, 7:48 am)
Re: TX time stamping, Patrick Ohly, (Thu Mar 26, 8:30 am)
Re: TX time stamping, Oliver Hartkopp, (Mon Mar 30, 11:09 am)
Re: TX time stamping, Patrick Ohly, (Mon Mar 30, 11:53 pm)