Re: [virtio-comment] [PATCH 1/3] shared memory: Define shared memory regions

From: Halil Pasic <pasic@linux.ibm.com>
To: Cornelia Huck <cohuck@redhat.com>
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>,
	virtio-comment@lists.oasis-open.org, stefanha@redhat.com
Subject: Re: [virtio-comment] [PATCH 1/3] shared memory: Define shared memory regions
Date: Fri, 15 Feb 2019 13:51:34 +0100	[thread overview]
Message-ID: <20190215135134.1945200c@oc2783563651> (raw)
In-Reply-To: <20190214115807.2bab4efb.cohuck@redhat.com>

On Thu, 14 Feb 2019 11:58:07 +0100
Cornelia Huck <cohuck@redhat.com> wrote:

> Tags: inv, virtio 
> From: Cornelia Huck <cohuck@redhat.com>
> To: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
> Cc: virtio-comment@lists.oasis-open.org, stefanha@redhat.com, Halil Pasic <pasic@linux.ibm.com>
> Subject: Re: [virtio-comment] [PATCH 1/3] shared memory: Define shared memory regions
> Date: Thu, 14 Feb 2019 11:58:07 +0100
> Sender: <virtio-comment@lists.oasis-open.org>
> Organization: Red Hat GmbH
> 
> On Wed, 13 Feb 2019 18:37:56 +0000
> "Dr. David Alan Gilbert" <dgilbert@redhat.com> wrote:
> 
> > * Cornelia Huck (cohuck@redhat.com) wrote:  
> > > On Wed, 16 Jan 2019 20:06:25 +0000
> > > "Dr. David Alan Gilbert" <dgilbert@redhat.com> wrote:
> > >     
> > > > So these are all moving this 1/3 forward - has anyone got comments on
> > > > the transport specific implementations?    
> > > 
> > > No comment on pci or mmio, but I've hacked something together for ccw.
> > > Basically, one sense-type ccw for discovery and a control-type ccw for
> > > activation of the regions (no idea if we really need the latter), both
> > > available with ccw revision 3.
> > > 
> > > No idea whether this will work this way, though...    
> > 
> > That sounds (from a shm perspective) reasonable; can I ask why the
> > 'activate' is needed?  
> 
> The activate interface is actually what I'm most unsure about; maybe
> Halil can chime in.

Sorry, I unfortunately kept deferring looking into this. Will have to do
some more thinking. I promise to give you my feedback by Monday end of
day if not sooner. Does that work with you?

Regards,
Halil

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