| Message ID | 20200522171726.648279-4-stefanha@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | virtio: enable VIRTIO_F_RING_PACKED for all devices | expand |
On Fri, May 22, 2020 at 1:20 PM Stefan Hajnoczi <stefanha@redhat.com> wrote: > > Vhost devices have a list of feature bits that the device backend is > allowed to control. The VIRTIO_F_RING_PACKED feature is a feature that > must be negotiated through all the way to the device backend. Add it so > the device backend can declare whether or not it supports the packed > ring layout. > > Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com> > --- > hw/block/vhost-user-blk.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/hw/block/vhost-user-blk.c b/hw/block/vhost-user-blk.c > index 9d8c0b3909..10e114a19a 100644 > --- a/hw/block/vhost-user-blk.c > +++ b/hw/block/vhost-user-blk.c > @@ -44,6 +44,7 @@ static const int user_feature_bits[] = { > VIRTIO_BLK_F_DISCARD, > VIRTIO_BLK_F_WRITE_ZEROES, > VIRTIO_F_VERSION_1, > + VIRTIO_F_RING_PACKED, > VIRTIO_RING_F_INDIRECT_DESC, > VIRTIO_RING_F_EVENT_IDX, > VIRTIO_F_NOTIFY_ON_EMPTY, > -- > 2.25.3 >
diff --git a/hw/block/vhost-user-blk.c b/hw/block/vhost-user-blk.c index 9d8c0b3909..10e114a19a 100644 --- a/hw/block/vhost-user-blk.c +++ b/hw/block/vhost-user-blk.c @@ -44,6 +44,7 @@ static const int user_feature_bits[] = { VIRTIO_BLK_F_DISCARD, VIRTIO_BLK_F_WRITE_ZEROES, VIRTIO_F_VERSION_1, + VIRTIO_F_RING_PACKED, VIRTIO_RING_F_INDIRECT_DESC, VIRTIO_RING_F_EVENT_IDX, VIRTIO_F_NOTIFY_ON_EMPTY,
Vhost devices have a list of feature bits that the device backend is allowed to control. The VIRTIO_F_RING_PACKED feature is a feature that must be negotiated through all the way to the device backend. Add it so the device backend can declare whether or not it supports the packed ring layout. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> --- hw/block/vhost-user-blk.c | 1 + 1 file changed, 1 insertion(+)