On Mon, Dec 05, 2016 at 12:46:14PM -0700, Jason Gunthorpe wrote: > In any event the allocator still needs to track which regions are in > use and be able to hook 'free' from userspace. That does suggest it > should be integrated into the nvme driver and not a bolt on driver.. Two totally different use cases: - a card that exposes directly byte addressable storage as a PCI-e bar. Thin of it as a nvdimm on a PCI-e card. That's the iopmem case. - the NVMe CMB which exposes a byte addressable indirection buffer for I/O, but does not actually provide byte addressable persistent storage. This is something that needs to be added to the NVMe driver (and the block layer for the abstraction probably). -- 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
