netdev - Re: [PATCH net-next] dp83640: Fix receive timestamp race condition

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Message-ID: <20140717192424.GA24456@localhost.localdomain>
Date:	Thu, 17 Jul 2014 21:24:24 +0200
From:	Richard Cochran <richardcochran@...il.com>
To:	Stefan Sørensen 
	<stefan.sorensen@...ctralink.com>
Cc:	davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [PATCH net-next] dp83640: Fix receive timestamp race condition

On Thu, Jul 17, 2014 at 08:12:22PM +0200, Richard Cochran wrote:
> 
> And what happens when the timestamp arrives *before* the PTP packet?

It could also happen that the MAC driver re-orders the packets. Think
about multiple hardware queues putting multicast UDP to one side, etc.
Sure, maybe not a typical combination with the phyter, but still the
driver should handle this.

Thanks,
Richard
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