netdev - Re: [PATCH RESEND net-next v6 0/3] Add DWMAC glue driver for Motorcomm YT6801

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Message-ID: <e3598b9e9f2e3fcef2e1446fe9e88af08b9c0bcc.camel@xry111.site>
Date: Wed, 21 Jan 2026 15:10:56 +0800
From: Xi Ruoyao <xry111@...111.site>
To: Yao Zi <me@...ao.cc>, Georg Gottleuber <ggo@...edocomputers.com>, 
 "Russell King (Oracle)"
	 <linux@...linux.org.uk>
Cc: andrew+netdev@...n.ch, davem@...emloft.net, edumazet@...gle.com, 
	kuba@...nel.org, pabeni@...hat.com, Frank.Sae@...or-comm.com,
 hkallweit1@...il.com, 	vladimir.oltean@....com, wens@...e.org,
 jszhang@...nel.org, 0x1207@...il.com, 	linux-kernel@...r.kernel.org,
 netdev@...r.kernel.org, jeffbai@...c.io, 	kexybiscuit@...c.io, Christoffer
 Sandberg <cs@...edocomputers.com>
Subject: Re: [PATCH RESEND net-next v6 0/3] Add DWMAC glue driver for
 Motorcomm YT6801

On Tue, 2026-01-20 at 11:52 +0000, Yao Zi wrote:
> > > > > > > I tested this driver with our TUXEDO InfinityBook Pro AMD Gen9. Iperf
> > > > > > > revealed that tx is only 100Mbit/s:
> > > > > > > 
> > > > > ...
> > > > > > > 
> > > > > > > With our normally used DKMS module, Ethernet works with full-duplex and
> > > > > > > gigabit. Attached are some logs from lspci and dmesg. Do you have any
> > > > > > > idea how I can debug this further?

Just FYI: on the contrary, the DKMS module from vendor often negotiates
to 10Mbps (for both RX and TX) on the Loongson 3A6000 and 3C6000 boards
but we've not observed any issue with the driver in this series (we also
tested with iperf).

-- 
Xi Ruoyao <xry111@...111.site>