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Date: Sun, 4 Oct 2020 09:17:55 -0700 From: Florian Fainelli <f.fainelli@...il.com> To: Andrew Lunn <andrew@...n.ch>, David Miller <davem@...emloft.net> Cc: netdev <netdev@...r.kernel.org>, Vladimir Oltean <vladimir.oltean@....com>, Jiri Pirko <jiri@...dia.com>, Jakub Kicinski <kuba@...nel.org>, Vladimir Oltean <olteanv@...il.com> Subject: Re: [PATCH net-next v3 1/7] net: devlink: Add unused port flavour On 10/4/2020 9:12 AM, Andrew Lunn wrote: > Not all ports of a switch need to be used, particularly in embedded > systems. Add a port flavour for ports which physically exist in the > switch, but are not connected to the front panel etc, and so are > unused. By having unused ports present in devlink, it gives a more > accurate representation of the hardware. It also allows regions to be > associated to such ports, so allowing, for example, to determine > unused ports are correctly powered off, or to compare probable reset > defaults of unused ports to used ports experiences issues. > > Actually registering unused ports and setting the flavour to unused is > optional. The DSA core will register all such switch ports, but such > ports are expected to be limited in number. Bigger ASICs may decide > not to list unused ports. > > v2: > Expand the description about why it is useful > > Reviewed-by: Vladimir Oltean <olteanv@...il.com> > Tested-by: Vladimir Oltean <olteanv@...il.com> > Signed-off-by: Andrew Lunn <andrew@...n.ch> Reviewed-by: Florian Fainelli <f.fainelli@...il.com> -- Florian
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