linux-kernel - Re: [PATCH net-next v3 0/4] Fix OdroidC2 Gigabit Tx link issue

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Date:   Tue, 29 Nov 2016 16:43:20 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     David Miller <davem@...emloft.net>, jbrunet@...libre.com
Cc:     netdev@...r.kernel.org, devicetree@...r.kernel.org,
        carlo@...one.org, khilman@...libre.com, peppe.cavallaro@...com,
        alexandre.torgue@...com, martin.blumenstingl@...glemail.com,
        neolynx@...il.com, andrew@...n.ch, narmstrong@...libre.com,
        linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v3 0/4] Fix OdroidC2 Gigabit Tx link issue

On 11/29/2016 04:38 PM, David Miller wrote:
> From: Jerome Brunet <jbrunet@...libre.com>
> Date: Mon, 28 Nov 2016 10:46:45 +0100
> 
>> This patchset fixes an issue with the OdroidC2 board (DWMAC + RTL8211F).
>> The platform seems to enter LPI on the Rx path too often while performing
>> relatively high TX transfer. This eventually break the link (both Tx and
>> Rx), and require to bring the interface down and up again to get the Rx
>> path working again.
>>
>> The root cause of this issue is not fully understood yet but disabling EEE
>> advertisement on the PHY prevent this feature to be negotiated.
>> With this change, the link is stable and reliable, with the expected
>> throughput performance.
>>
>> The patchset adds options in the generic phy driver to disable EEE
>> advertisement, through device tree. The way it is done is very similar
>> to the handling of the max-speed property.
> 
> Patches 1-3 applied to net-next, thanks.

Meh, there was a v4 submitted shortly after, and I objected to the whole
idea of using that kind of Device Tree properties to disable EEE, we can
send reverts though..
-- 
Florian