netdev - Re: [PATCH net-next v4 6/6] tsnep: Add free running cycle counter support

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Date:   Fri, 6 May 2022 16:03:27 -0700
From:   Jonathan Lemon <jonathan.lemon@...il.com>
To:     Gerhard Engleder <gerhard@...leder-embedded.com>
Cc:     richardcochran@...il.com, vinicius.gomes@...el.com,
        yangbo.lu@....com, davem@...emloft.net, kuba@...nel.org,
        mlichvar@...hat.com, willemb@...gle.com, kafai@...com,
        netdev@...r.kernel.org
Subject: Re: [PATCH net-next v4 6/6] tsnep: Add free running cycle counter
 support

On Fri, May 06, 2022 at 10:01:42PM +0200, Gerhard Engleder wrote:
> The TSN endpoint Ethernet MAC supports a free running counter
> additionally to its clock. This free running counter can be read and
> hardware timestamps are supported. As the name implies, this counter
> cannot be set and its frequency cannot be adjusted.
> 
> Add free running cycle counter support based on this free running
> counter to physical clock. This also requires hardware time stamps
> based on that free running counter.
> 
> Signed-off-by: Gerhard Engleder <gerhard@...leder-embedded.com>
Acked-by: Jonathan Lemon <jonathan.lemon@...il.com>