[systemd-devel] persistent network device names

[Andrei Borzenkov]

В Mon, 27 Jul 2015 18:29:57 +0000
"Keller, Jacob E" <jacob.e.keller at intel.com> пишет:

> On Mon, 2015-07-27 at 21:12 +0300, Andrei Borzenkov wrote:
> > В Mon, 27 Jul 2015 17:52:59 +0000
> > "Keller, Jacob E" <jacob.e.keller at intel.com> пишет:
> > 
> > > Hello,
> > > 
> > > I am working with a network device that can create virtual function
> > > devices. When I create a large (>8) vfs for this device I get some
> > > weird device names,
> > > 
> > > If I create 64 vfs, I see something like:
> > > 
> > > ens8
> > > ens8f[1-7]
> > > ens8s[1-7]

Are you sure? I do not see where such names would be generated.

> > > enp8s[1-7]f[1-7]
> > > 
> > 
> > All those names come directly from kernel. udev does not invent them 
> > -
> > this is exactly what lspci shows. If it does not match lspci, you
> > should provide more information.
> > 
> > > ens8f1-64 or something?
> > > 
> > 
> > Then kernel should enumerate them so; you really need to discuss it
> > there.
> 
> It looks like my issue comes from the "hotplug_slot" stuff, which
> overwrites the "enp8s0f0" into "ens8"... that is what causes this dual
> -name scheme confusion.
> 

You can disable hotplug slot-based naming by setting suitable
NamePolicy for network links (drop "slot").