netdev - Re: [PATCH 0/3] Fix EEE support for MT7531 and MT7988 SoC switch

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Message-ID: <7feb4cbc-15f3-47e1-874e-382ebee109de@arinc9.com>
Date: Tue, 19 Mar 2024 23:04:53 +0300
From: Arınç ÜNAL <arinc.unal@...nc9.com>
To: Andrew Lunn <andrew@...n.ch>
Cc: Daniel Golle <daniel@...rotopia.org>, DENG Qingfang <dqfext@...il.com>,
 Sean Wang <sean.wang@...iatek.com>, Florian Fainelli <f.fainelli@...il.com>,
 Vladimir Oltean <olteanv@...il.com>, "David S. Miller"
 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 Matthias Brugger <matthias.bgg@...il.com>,
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
 René van Dorst <opensource@...rst.com>,
 Russell King <linux@...linux.org.uk>,
 SkyLake Huang <SkyLake.Huang@...iatek.com>,
 Heiner Kallweit <hkallweit1@...il.com>,
 Bartel Eerdekens <bartel.eerdekens@...stell8.be>, mithat.guner@...ont.com,
 erkin.bozoglu@...ont.com, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH 0/3] Fix EEE support for MT7531 and MT7988 SoC switch

On 19.03.2024 22:38, Andrew Lunn wrote:
>> I would argue that EEE advertisement on the PHY should be enabled by
>> default.
> 
> That is an open question at the moment. For some use cases, it can add
> extra delay and jitter which can cause problems. I've heard people
> doing PTP don't like EEE for example.
> 
> The current phylib core code leaves the PHY advertisement whatever its
> reset default is. So we leave it to the manufacture to decide if it
> should be enabled or disabled by default. It is policy, so it should
> really be down to user space to configure EEE how it wants it.

That's fine by me. Then my patch series is okay as it is.

Arınç