netdev - Re: [PATCH net-next 1/2] net: dsa: Implement ndo_get_phys_port

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Message-ID: <20170110205043.GM22820@lunn.ch>
Date:   Tue, 10 Jan 2017 21:50:43 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net,
        vivien.didelot@...oirfairelinux.com, jiri@...nulli.us
Subject: Re: [PATCH net-next 1/2] net: dsa: Implement ndo_get_phys_port_name()

On Tue, Jan 10, 2017 at 12:32:36PM -0800, Florian Fainelli wrote:
> Return the physical port number of a DSA created network device using
> ndo_get_phys_port_name().

At what level does this need to be unique?

We can have multiple switches within one switch cluster. p->port will
be unique within one switch, but can be repeated in a cluster.

We can also have multiple clusters, and again p->port will be re-used.

   Andrew