On 30/11/16 09:23 AM, Jason Gunthorpe wrote:
> Two cases I can think of are RDMA access to an NVMe device's
> memory buffer,
I'm not sure on the use model there..
The NVMe fabrics stuff could probably make use of this. It's an
in-kernel system to allow remote access to an NVMe device over RDMA. So
they ought to be able to optimize their transfers by DMAing directly to
the NVMe's CMB -- no userspace interface would be required but there
would need some kernel infrastructure.