[PATCH] Configure network device for nfsboot via nv var

[Uwe Kleine-König]

Hello,

On Thu, Nov 16, 2017 at 07:20:14AM +0000, Schenk, Gavin wrote:
> > On Wed, Nov 08, 2017 at 04:05:17PM +0100, Gavin Schenk wrote:
> > > When you have a static network environment but more than one
> > > network
> > > device on your machine it is necessary to provide the <device>
> > > parameter to the ip parameter at kernel cmd line.
> > > 
> > > The device name assigned by Linux cannot in general be predicted as
> > > it
> > > depends on driver bind order.
> > > 
> > > This patch introduces a new global variable
> > > "global.linux.nfsroot.device" which when set is feed to the ip=
> > > kernel
> > > parameter as device name.
> > 
> > Maybe we should rather add a linuxname property to the ethernet
> > device
> > instead. That way we could specify multiple names in case we have
> > multiple ethernet devices in barebox aswell.
> > 
> 
> maybe I am missing something important, but is this useful for anything
> besides nfsboot?
> 
> If linuxname is a property of the device, how do we decide between
> eth0.linuxname and eth1.linuxname when doing a "boot /mnt/nfs"? 
> In this case we need additionally a global variable like nfsboot-
> device=eth0 to switch between nfsboot devices and to make the decision
> when filling the ip parameter?

IMHO this is unnecessary complicated and the suggested patch is fine.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |