On Wed, Dec 13, 2023 at 04:27:40PM +0000, Srujana Challa wrote: > Hi Michael, > > While verifying virtio frontend drivers of guest OS on qemu with vhost-vdpa > backend, > we came across feature bits VIRTIO_F_IN_ORDER and VIRTIO_F_NOTIFICATION_DATA, > which are introduced in virtio 1.1 spec, are not yet enabled in qemu. These > feature flags > are very much useful for achieving better virtio-net performance and most of > the latest > hardware VDPA devices supports these feature flags as per of virtio spec.
Could you share more about which device do you mean? Does Marvell ship or intends to ship one? > Could you let us know if there are any plans, to add support for these > features in upcoming > qemu releases. > I guess there was some discussion on VIRTIO_F_IN_ORDER feature bit long ago, > https://patchew.org/QEMU/[email protected]/ > Seems like that discussion has not reached any conclusion or further work. > > Thanks, > Srujana. Yes that patch got comments and these were not addressed. Feel free to address them so this can proceed. -- MST
