netdev - Re: [PATCH] sfc: Export fibre-specific link modes for 1/10G

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Message-ID: <YW8N9RlRD8/15GLP@lunn.ch>
Date:   Tue, 19 Oct 2021 20:27:01 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Erik Ekman <erik@...o.se>
Cc:     Edward Cree <ecree.xilinx@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org
Subject: Re: [PATCH] sfc: Export fibre-specific link modes for 1/10G

On Tue, Oct 19, 2021 at 07:34:16PM +0200, Erik Ekman wrote:
> On Tue, 19 Oct 2021 at 17:53, Martin Habets <habetsm.xilinx@...il.com> wrote:
> >
> > On Tue, Oct 19, 2021 at 05:31:52PM +0200, Andrew Lunn wrote:
> > > On Mon, Oct 18, 2021 at 08:37:08PM +0200, Erik Ekman wrote:
> > > > These modes were added to ethtool.h in 5711a98221443 ("net: ethtool: add support
> > > > for 1000BaseX and missing 10G link modes") back in 2016.
> > > >
> > > > Only setting CR mode for 10G, similar to how 25/40/50/100G modes are set up.
> > > >
> > > > Tested using SFN5122F-R7 (with 2 SFP+ ports) and a 1000BASE-BX10 SFP module.
> > >
> > > Did you test with a Copper SFP modules?
> > >
> 
> I have tested it with a copper SFP PHY at 1G and that works fine.

Meaning ethtool returns 1000BaseT_FULL? Does the SFP also support
10/100? Does ethtool list 10BaseT_Half, 10BaseT_Full, etc.

	Andrew