On Thu, May 09, 2019 at 02:12:55AM -0700, Stefan Hajnoczi wrote: > On Mon, May 06, 2019 at 12:04:06PM +0300, Maxim Levitsky wrote: > > On top of that, it is expected that newer hardware will support the PASID > > based > > device subdivision, which will allow us to _directly_ pass through the > > submission queues of the device and _force_ us to use the NVME protocol for > > the > > frontend. > > I don't understand the PASID argument. The data path will be 100% > passthrough and this driver won't be necessary.
We still need a non-passthrough component to handle slow path, non-doorbell controller registers and admin queue. That doesn't necessarily need to be a kernel driver, though.
