On Tue, Nov 19, 2019 at 12:46:32PM -0400, Jason Gunthorpe wrote: > As always, this is all very hard to tell without actually seeing real > accelerated drivers implement this. > > Your patch series might be a bit premature in this regard. Actually drivers implementing this have been posted, haven't they? See e.g. https://lwn.net/Articles/804379/ -- MST