[PATCH 2/5] node_device: detect CSS devices

[Cornelia Huck]

On Wed, 9 Sep 2020 14:46:00 +0200
Erik Skultety <eskultet at redhat.com> wrote:

> > > > Are ^these attributes documented a little more somewhere? I didn't find those
> > > > in [1]. I suppose it is available in the z/Architecture: Principles of  
> >
> > [BTW: what are [1] and [2] referring to?]  
> 
> Urgh...not again...
> [1] https://www.ibm.com/support/knowledgecenter/zosbasics/com.ibm.zos.znetwork/znetwork_59.htm
> [2] https://www.kernel.org/doc/html/latest/driver-api/s390-drivers.html

TBH, I'm not sure how useful [2] is; it's mostly a vehicle for pulling
in kerneldoc documentation of structs and functions. There's also
https://www.kernel.org/doc/html/latest/s390/driver-model.html, not sure
if that is helpful.

> 
> Sorry...
> 
> >  
> > > > Operation publication for which I'd have to get an IBM account.
> > > >  
> > >
> > > Here's a freely available version of the PoP:
> > >
> > > https://www.ibm.com/support/pages/sites/default/files/inline-files/690450_SA22-7832-03.pdf
> > >
> > > I/O is described in chapter 13.  
> >
> > Let me also point to a series of articles I did on my blog:
> > https://virtualpenguins.blogspot.com/2017/02/channel-io-demystified.html  
> 
> Thanks, I've looked at both, it's still fairly cloudy though.

Let me know if I can do anything to make it clearer. This channel I/O
stuff probably can be a bit daunting...