On Wed, May 30, 2018 at 04:03:37PM +0000, Rustad, Mark D wrote: > On May 30, 2018, at 1:55 AM, Tiwei Bie <tiwei.bie@xxxxxxxxx> wrote: > > > There is a new feature bit allocated in virtio spec to > > support SR-IOV (Single Root I/O Virtualization): > > > > https://github.com/oasis-tcs/virtio-spec/issues/11 > > > > This patch enables the support for this feature bit in > > virtio driver. > > > > Signed-off-by: Tiwei Bie <tiwei.bie@xxxxxxxxx> > > --- > > This patch depends on below proposal: > > https://lists.oasis-open.org/archives/virtio-dev/201805/msg00154.html > > > > This patch depends on below patch: > > https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git/commit/?h=pci/virtualization&id=8effc395c2097e258fcedfc02ed4a66d45fb4238 > > > > drivers/virtio/virtio_pci_common.c | 20 ++++++++++++++++++++ > > drivers/virtio/virtio_pci_modern.c | 14 ++++++++++++++ > > include/uapi/linux/virtio_config.h | 7 ++++++- > > 3 files changed, 40 insertions(+), 1 deletion(-) > > > > <snip> > > > diff --git a/include/uapi/linux/virtio_config.h > > b/include/uapi/linux/virtio_config.h > > index 308e2096291f..b7c1f4e7d59e 100644 > > --- a/include/uapi/linux/virtio_config.h > > +++ b/include/uapi/linux/virtio_config.h > > @@ -49,7 +49,7 @@ > > There is a value in the comment directly before this that should > be updated as well to be consistent with the new value for > VIRTIO_TRANSPORT_F_END below. It hasn't been updated to 34 yet. I suggest a separate patch to replace the numbers with VIRTIO_TRANSPORT_F_START and VIRTIO_TRANSPORT_F_END in the comment. Maybe replace "e.g. virtio_ring" with "e.g. virtio_ring, virtio_pci etc." as well. > > * transport being used (eg. virtio_ring), the rest are per-device feature > > * bits. */ > > #define VIRTIO_TRANSPORT_F_START 28 > > -#define VIRTIO_TRANSPORT_F_END 34 > > +#define VIRTIO_TRANSPORT_F_END 38 > > > > #ifndef VIRTIO_CONFIG_NO_LEGACY > > /* Do we get callbacks when the ring is completely used, even if we've > > <snip> > > -- > Mark Rustad, Networking Division, Intel Corporation
