RE: [PATCH net-next] net: phy: micrel: Fix latency issues in LAN8814 PHY
From: Divya.Koppera
Date: Wed Jul 06 2022 - 07:57:47 EST
Hi Andrew,
> -----Original Message-----
> From: Andrew Lunn <andrew@xxxxxxx>
> Sent: Tuesday, July 5, 2022 8:45 PM
> To: Divya Koppera - I30481 <Divya.Koppera@xxxxxxxxxxxxx>
> Cc: hkallweit1@xxxxxxxxx; linux@xxxxxxxxxxxxxxx; davem@xxxxxxxxxxxxx;
> edumazet@xxxxxxxxxx; kuba@xxxxxxxxxx; pabeni@xxxxxxxxxx;
> netdev@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; UNGLinuxDriver
> <UNGLinuxDriver@xxxxxxxxxxxxx>; Madhuri Sripada - I34878
> <Madhuri.Sripada@xxxxxxxxxxxxx>
> Subject: Re: [PATCH net-next] net: phy: micrel: Fix latency issues in LAN8814
> PHY
>
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> On Tue, Jul 05, 2022 at 04:35:54PM +0530, Divya Koppera wrote:
> > Latency adjustments done for 1-step and 2-step from default latency
> > register values to fix negative and high mean path delays.
>
> You forgot to Cc: the PTP maintainer.
>
> Doesn't this change break user space tools which have already measured the
> latency and is doing a correction?
This corrections can be done using user space tools. But I tried to fix it in phy rather than giving chance to application.
This will work on only certain platforms. So I'm dropping this change to get into kernel.
Thanks
Divya
>
> Andrew