linux-kernel - Re: [PATCH NET-NEXT 0/10] hardware time stamping with new fields in shinfo

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Message-Id: <20090215.231626.160752710.davem@davemloft.net>
Date:	Sun, 15 Feb 2009 23:16:26 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	patrick.ohly@...el.com
Cc:	johnstul@...ibm.com, john.ronciak@...el.com,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH NET-NEXT 0/10] hardware time stamping with new fields
 in shinfo

From: Patrick Ohly <patrick.ohly@...el.com>
Date: Thu, 12 Feb 2009 16:03:01 +0100

> This revision of the patch series transports hardware time stamps from
> the hardware into user space via additional fields in struct
> skb_shared_info. It's based on net-next-2.6 as of this morning.
> 
> This is the solution that emerged from the discussion of the other
> approaches suggested before (reuse tstamp, extend skbuff, optional
> structs): it has the advantage of not touching skbuff and also has the
> simplest implementation.
> 
> The clocksource and timecompare patches have been reviewed by John
> Stultz. He doesn't mind merging them via the net subtree.
> 
> John Ronciak reviewed the igb driver patches. He suggested to merge the
> patches as they; after all, PTPd already works fine. I just tested again
> on 32 and 64 bit x86, both with the timestamping example programs as
> well as with PTPd. Latest patched PTPd is here:
>         http://github.com/pohly/ptpd/tree/master
> 
> The open TODOs in the igb driver will be fixed. We think that this will
> be easier with the infrastructure and the driver in a regular kernel
> tree.

Ok, I applied everything and pushed it out to net-next-2.6, let's
see how this goes :-)

That TX clone wrt. skb_orphan() issue will need a happier solution.

Can you describe that problem in detail?  Maybe someone can come
up with a way to avoid that stuff.

Thanks.
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