On Fri, Jan 17, 2020 at 01:54:42PM +0000, Jason Gunthorpe wrote:
> > 1) "virtio" vs "vhost", I implemented matching method for this in mdev
> > series, but it looks unnecessary for vDPA device driver to know about this.
> > Anyway we can use sysfs driver bind/unbind to switch drivers
> > 2) virtio device id and vendor id. I'm not sure we need this consider the
> > two drivers so far (virtio/vhost) are all bus drivers.
> 
> As we seem to be contemplating some dynamic creation of vdpa devices I
> think upon creation time it should be specified what mode they should
> run it and then all driver binding and autoloading should happen
> automatically. Telling the user to bind/unbind is a very poor
> experience.

Maybe but OTOH it's an existing interface. I think we can reasonably
start with bind/unbind and then add ability to specify
the mode later. bind/unbind come from core so they will be
maintained anyway.
-- 
MST

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