Martin,

yes, I can take care about removing the portname from the qeth driver.

Regards, Uschi


> Martin Schwidefsky/Germany/IBM wrote on 17/06/2015 09:24:59:
> 
> > From: Martin Schwidefsky/Germany/IBM 
> > To: "Mark Post" <mp...@suse.com>, Ursula Braun1/Germany/IBM@IBMDE, 
> > Cc: "Linux on 390 Port" <LINUX-390@VM.MARIST.EDU> 
> > Date: 17/06/2015 09:25 
> > Subject: Re: SUSE12 Gold image on VM 
> > 
> > "Mark Post" <mp...@suse.com> wrote on 06/16/2015 04:53:29 PM:
> > 
> > > From: "Mark Post" <mp...@suse.com> 
> > > To: "Linux on 390 Port" <LINUX-390@VM.MARIST.EDU>, 
> > > Date: 06/16/2015 04:53 PM 
> > > Subject: Re: SUSE12 Gold image on VM 
> > > 
> > > >>> On 6/16/2015 at 09:55 AM, Alan Altmark
> <alan_altm...@us.ibm.com> wrote: 
> > > > On Tuesday, 06/16/2015 at 12:50 EDT, Mark Post <mp...@suse.com>
> wrote:
> > > >> >>> On 6/15/2015 at 11:54 PM, Alan Altmark
> <alan_altm...@us.ibm.com>
> > > > wrote:
> > > >> > Neither z/VM nor Linux have to specify a portname (real or
> virtual). I
> > > >> > recommend that you do NOT specify the portname.
> > > >> >
> > > >> > I don't understand why the distros still worry about the
> portname.  We
> > > > got
> > > >> > rid of the requirement for z/VM and Linux on the z900 and
> z800 back in
> > > >> > 2003.  Just issue a msg that it's obsolete and ignore it.
> > > >>
> > > >> Even for Linux in an LPAR sharing an OSA with a z/OS system
> that is
> > > > specifying
> > > >> (their equivalent of) a portname?
> > > > 
> > > > Yes, even then.  You can google "OSA portname relief".
> > > 
> > > OK then.  I'm going to open up a bug with IBM to either remove
> that 
> > > attribute from the driver, or make it read-only in sysfs.  
> > > Preferably removing it altogether since it can only cause
> problems 
> > > by being present.
> > > 
> > > Looking at the results of my Google searches, I can see why I
> never 
> > > made the complete connection.  There were always statements made 
> > > about z/OS requiring the parameter, and "if you specify it in
> Linux 
> > > it has to match."  Looking at it now, I understand what was
> meant.  
> > > Back then it meant (to me and apparently others) "if you're
> sharing 
> > > an OSA you need to specify the same portname as z/OS is using."
> 
> > Well, technically there have been machines with OSA cards that
> required 
> > the portname which is why the parameter has survived until now.
> There 
> > is a bit in the response block of the read channel activation ccw
> that 
> > tells us if the portname is required. 
> > 
> > With the option for 31-bit kernel builds gone from the upstream
> source 
> > and the fact that the z900/z800 does not require the portname we
> could 
> > remove the portname code from the OSA driver. 
> > 
> > Uschi, care to create a patch to remove everything portname related
> from 
> > the OSA driver? 
> > 
> > blue skies,
> >    Martin
> > 
> > Martin Schwidefsky
> > Linux on System z Development
> > IBM System & Technology Group, System Software Development
> > 
> > IBM Deutschland Research & Development GmbH
> > Vorsitzender des Aufsichtsrats: Martina Koederitz
> > Geschäftsführung: Dirk Wittkopp
> > Sitz der Gesellschaft: Böblingen
> > Registergericht: Amtsgericht Stuttgart, HRB 243294

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