netdev - Re: phys_port_id in switchdev mode?

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Message-ID: <20180903135516.GD4590@localhost.localdomain>
Date:   Mon, 3 Sep 2018 10:55:16 -0300
From:   Marcelo Ricardo Leitner <marcelo.leitner@...il.com>
To:     Jakub Kicinski <jakub.kicinski@...ronome.com>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Or Gerlitz <gerlitz.or@...il.com>,
        Simon Horman <simon.horman@...ronome.com>,
        Andy Gospodarek <andy@...yhouse.net>,
        "mchan@...adcom.com" <mchan@...adcom.com>,
        Jiri Pirko <jiri@...nulli.us>,
        Alexander Duyck <alexander.duyck@...il.com>,
        Frederick Botha <frederick.botha@...ronome.com>,
        nick viljoen <nick.viljoen@...ronome.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: phys_port_id in switchdev mode?

On Sat, Sep 01, 2018 at 01:34:12PM +0200, Jakub Kicinski wrote:
> On Fri, 31 Aug 2018 17:13:22 -0300, Marcelo Ricardo Leitner wrote:
> > On Tue, Aug 28, 2018 at 08:43:51PM +0200, Jakub Kicinski wrote:
> > > Ugh, CC: netdev..
> > > 
> > > On Tue, 28 Aug 2018 20:05:39 +0200, Jakub Kicinski wrote:  
> > > > Hi!
> > > > 
> > > > I wonder if we can use phys_port_id in switchdev to group together
> > > > interfaces of a single PCI PF?  Here is the problem:  
> > 
> > On Mellanox cards, this is already possible via phys_switch_id, as
> > each PF has its own phys_switch_id. So all VFs with a given
> > phys_switch_id belong to the PF with that same phys_switch_id.
> 
> You mean Connect-X4 and on, Connect-X3 also shares PF between ports.

Yes ConnectX-3 shares PF beween ports but doesn't support switchdev
mode.

I see the issue now. I was still considering the external ports as
uplink representors.