Messages in this thread | | | Date | Wed, 21 Oct 2020 20:02:17 -0700 | From | Richard Cochran <> | Subject | Re: [RFC PATCH net-next 7/9] net: dsa: microchip: ksz9477: add hardware time stamping support |
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On Thu, Oct 22, 2020 at 02:39:35AM +0300, Vladimir Oltean wrote: > So how _does_ that work for TI PHYTER? > > As far as we understand, the PHYTER appears to autonomously mangle PTP packets > in the following way: > - subtracting t2 on RX from the correctionField of the Pdelay_Req > - adding t3 on TX to the correctionField of the Pdelay_Resp
The Phyter does not support peer-to-peer one step.
The only driver that implements it is ptp_ines.c.
And *that* driver/HW implements it correctly.
Thanks, Richard
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