On 30/11/16 09:23 AM, Jason Gunthorpe wrote: >> Two cases I can think of are RDMA access to an NVMe device's controller >> 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. Logan -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
