netdev - Re: Is it currently possible to connect SFP to dsa port?

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Message-ID: <20180807195820.GA7275@lunn.ch>
Date:   Tue, 7 Aug 2018 21:58:20 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Marek Behun <marek.behun@....cz>
Cc:     netdev@...r.kernel.org,
        Russell King - ARM Linux <linux@...linux.org.uk>
Subject: Re: Is it currently possible to connect SFP to dsa port?

On Tue, Aug 07, 2018 at 09:00:23PM +0200, Marek Behun wrote:
> Hello,
> 
> I have a question regarding DSA/SFP code.
> 
> We are working on a modular router where it is possible to connect
> multiple switch cards and at most one SFP cage card to a router.
> 
> Does the sfp/dsa driver support connecting SFP port to a DSA port? For
> example the Marvell 6390 switch has two SGMII ports and 8 1Gbps PHYs.
> One can then connect those 8 1Gbps PHYs to RJ-45 connectors, the first
> SGMII port to the CPU and the second SGMII port to SFP.

Hi Marek

I'm currently working on exactly this!

My primary aim is to allow SFP on ports 9 and 10. ports 2-7 can also
be connected to SFPs, but that is a bit harder, so it is going to take
me a little longer.

I hope i can post patches in the next few days.

  Andrew