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Date: Tue, 4 Dec 2012 08:53:18 +0100 From: Richard Cochran <richardcochran@...il.com> To: Nithin Nayak Sujir <nsujir@...adcom.com> Cc: Michael Chan <mchan@...adcom.com>, davem@...emloft.net, netdev@...r.kernel.org Subject: Re: [PATCH 2/4 net-next] tg3: PTP - Implement the ptp api and ethtool functions On Mon, Dec 03, 2012 at 01:52:16PM -0800, Nithin Nayak Sujir wrote: > > Yes, the hardware does seem to be different from what you describe > but I think the conversion is right. I tested this with ptp4l in a > back-to-back configuration and observed convergence of the master > offset to ~0. Without this code, the offset keeps increasing. Okay, thanks, just asking. It appears that this works just like the IGB. The register value is a binary fraction of the increment value, and not an addend as I assumed. Thanks, Richard -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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