On Thu, 2015-09-10 at 10:02 -0700, Ming Lin wrote: > On Thu, 2015-09-10 at 14:02 +0000, Keith Busch wrote: > > On Wed, 9 Sep 2015, Ming Lin wrote: > > > The goal is to have a full NVMe stack from VM guest(virtio-nvme) > > > to host(vhost_nvme) to LIO NVMe-over-fabrics target. > > > > > > Now there are lots of duplicated code with linux/nvme-core.c and > > > qemu/nvme.c. > > > The ideal result is to have a multi level NVMe stack(similar as > > > SCSI). > > > So we can re-use the nvme code, for example > > > > > > .-------------------------. > > > | NVMe device register | > > > Upper level | NVMe protocol process | > > > | | > > > '-------------------------' > > > > > > > > > > > > .-----------. .-----------. .----------------- > > > -. > > > Lower level | PCIe | | VIRTIO | |NVMe over Fabrics > > > | > > > | | | | |initiator > > > | > > > '-----------' '-----------' '----------------- > > > -' > > > > > > todo: > > > - tune performance. Should be as good as virtio-blk/virtio-scsi > > > - support discard/flush/integrity > > > - need Redhat's help for the VIRTIO_ID_NVME pci id > > > - multi level NVMe stack > > > > Hi Ming, > > Hi Keith, > > > > > I'll be out for travel for the next week, so I won't have much time > > to > > do a proper review till the following week. > > > > I think it'd be better to get this hierarchy setup to make the most > > reuse > > possible than to have this much code duplication between the > > existing > > driver and emulated qemu nvme. For better or worse, I think the > > generic > > nvme layer is where things are going. Are you signed up with the > > fabrics > > contributors? > > No. How to sign up? Ming, Here is the email Keith sent out on this list that says how to sign up: http://lists.infradead.org/pipermail/linux-nvme/2015 -September/002331.html Jay > > > > _______________________________________________ > Linux-nvme mailing list > Linux-nvme@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-nvme _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
