netdev - Re: [PATCH net-next 3/3] net: stmmac: add support specifying PCS supported interfaces

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Message-ID: <c2686441-7201-470f-b1b5-063c347bea2e@bootlin.com>
Date: Tue, 28 Oct 2025 12:26:26 +0100
From: Maxime Chevallier <maxime.chevallier@...tlin.com>
To: "Russell King (Oracle)" <linux@...linux.org.uk>
Cc: Andrew Lunn <andrew@...n.ch>, Heiner Kallweit <hkallweit1@...il.com>,
 Alexandre Torgue <alexandre.torgue@...s.st.com>,
 Alexis Lothor__ <alexis.lothore@...tlin.com>,
 Andrew Lunn <andrew+netdev@...n.ch>, Boon Khai Ng <boon.khai.ng@...era.com>,
 Daniel Machon <daniel.machon@...rochip.com>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Furong Xu <0x1207@...il.com>, Jacob Keller <jacob.e.keller@...el.com>,
 Jakub Kicinski <kuba@...nel.org>, linux-arm-kernel@...ts.infradead.org,
 linux-stm32@...md-mailman.stormreply.com,
 Maxime Coquelin <mcoquelin.stm32@...il.com>, netdev@...r.kernel.org,
 Paolo Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>,
 Yu-Chun Lin <eleanor15x@...il.com>
Subject: Re: [PATCH net-next 3/3] net: stmmac: add support specifying PCS
 supported interfaces

On 28/10/2025 11:35, Russell King (Oracle) wrote:
> On Tue, Oct 28, 2025 at 11:16:00AM +0100, Maxime Chevallier wrote:
>> Hello Russell,
>>
>> On 25/10/2025 22:48, Russell King (Oracle) wrote:
>>> Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
>>
>> Maybe this needs a commit log, even a small one ? :(
> 
> Thanks for giving Jakub a reason to mark this "changes required." :D
> I'm not really expecting this to be merged as-is. So why didn't I
> post it as RFC? Too many people see "RFC" as a sign to ignore the
> patch series. Some people claim that "RFC" means it isn't ready and
> thus isn't worth reviewing/testing/etc. I say to those people... I
> can learn their game and work around their behaviour.

Yeah this series needs to be tested and discussed, I am rounding up all
my stmmac platforms in my ever-growing pile of HW as I'm building my
own test farm, but all the glue stmmac boards I have are the ones that
are fairly well maintained (imx-dwmac, dwmac-stm32, sdwmac-socfpga...).
I don't have any stmmac that use the integrated PCS :(

> 
> Yes, it will need a better commit log, but what I'm much much more
> interested in is having people who are using the integrated PCS (in
> SGMII mode as that's all we support) to test this, especially
> dwmac-qcom-ethqos folk.

Let's hope we can get some test indeed :/ 

Maxime

> The 2.5G support was submitted by Sneh Shah, and my attempts to make
> contact have resulted in no response.
>