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Message-ID: <32160a96-c031-4e5a-bf32-fd5d4dee727e@lunn.ch>
Date: Tue, 23 Apr 2024 01:23:01 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
	pabeni@...hat.com, horms@...nel.org, saeedm@...dia.com,
	anthony.l.nguyen@...el.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, corbet@....net,
	linux-doc@...r.kernel.org, robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
	devicetree@...r.kernel.org, horatiu.vultur@...rochip.com,
	ruanjinjie@...wei.com, steen.hegelund@...rochip.com,
	vladimir.oltean@....com, UNGLinuxDriver@...rochip.com,
	Thorsten.Kummermehr@...rochip.com, Pier.Beruto@...emi.com,
	Selvamani.Rajagopal@...emi.com, Nicolas.Ferre@...rochip.com,
	benjamin.bigler@...nformulastudent.ch
Subject: Re: [PATCH net-next v4 00/12] Add support for OPEN Alliance
 10BASE-T1x MACPHY Serial Interface

On Mon, Apr 22, 2024 at 10:08:23PM +0200, Andrew Lunn wrote:
> > Testing Details:
> > ----------------
> > The driver performance was tested using iperf3 in the below two setups
> > separately.
> > 
> > Setup 1:
> > --------
> > Node 0 - Raspberry Pi 4 with LAN8650 MAC-PHY 
> > Node 1 - Raspberry Pi 4 with EVB-LAN8670-USB USB Stick
> > 
> > Setup 2:
> > --------
> > Node 0 - SAMA7G54-EK with LAN8650 MAC-PHY 
> > Node 1 - Raspberry Pi 4 with EVB-LAN8670-USB USB Stick
> 
> Would it be possible to chain these two setups together by adding two
> USB dongles to one of the Ri 4s? If i remember correctly, there were
> reports of issues when two devices were using the framework at once.

Sorry, that makes no sense. Your USB device is unlikely to be doing
USB->SPI->MAC-PHY. Do you have two LAN8650 MAC-PHY you can connect to
one host?

    Andrew

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