[ofa-general] Re: Re: [PATCH RFC] sharing userspace IB objects

[Gleb Natapov]

On Sun, Jul 01, 2007 at 10:00:30PM +0300, Michael S. Tsirkin wrote:
> > > My proposal only deals with SSQ for now.
> > > For SRC we'll need to define a new "SRC domain" objects and API to share them
> > > between apps. I expect that we'll be able to basically use the same API as for
> > > sharing other objects.
> >
> > So lack of HW support for SRC stops you from implementing it, but lack
> > of HW support for SSQ don't really bother you at all.
> 
> The proposal lets you share any object across processes, same as we can do
> across threads at the moment, potentially with any hardware that supports IB
> spec 1.2. This can be used for both send and receive queues, CQs, etc.
Great. The change is big the API is complex. What is a use case?

> 
> SRC is a separate hardware extension. Speaking about "SRC without
> hardware support" simply does not make sense to me.
> 
Just like speaking about SSQ without hardware support doesn't make sense
to me. I am glad that we agree on something.

--
			Gleb.