diff options
| -rw-r--r-- | drivers/misc/mic/vop/vop_main.c | 13 | ||||
| -rw-r--r-- | drivers/remoteproc/remoteproc_virtio.c | 13 | ||||
| -rw-r--r-- | drivers/s390/virtio/virtio_ccw.c | 14 |
3 files changed, 40 insertions, 0 deletions
diff --git a/drivers/misc/mic/vop/vop_main.c b/drivers/misc/mic/vop/vop_main.c index 3633202e18f4..6b212c8b78e7 100644 --- a/drivers/misc/mic/vop/vop_main.c +++ b/drivers/misc/mic/vop/vop_main.c @@ -129,6 +129,16 @@ static u64 vop_get_features(struct virtio_device *vdev) return features; } +static void vop_transport_features(struct virtio_device *vdev) +{ + /* + * Packed ring isn't enabled on virtio_vop for now, + * because virtio_vop uses vring_new_virtqueue() which + * creates virtio rings on preallocated memory. + */ + __virtio_clear_bit(vdev, VIRTIO_F_RING_PACKED); +} + static int vop_finalize_features(struct virtio_device *vdev) { unsigned int i, bits; @@ -141,6 +151,9 @@ static int vop_finalize_features(struct virtio_device *vdev) /* Give virtio_ring a chance to accept features. */ vring_transport_features(vdev); + /* Give virtio_vop a chance to accept features. */ + vop_transport_features(vdev); + memset_io(out_features, 0, feature_len); bits = min_t(unsigned, feature_len, sizeof(vdev->features)) * 8; diff --git a/drivers/remoteproc/remoteproc_virtio.c b/drivers/remoteproc/remoteproc_virtio.c index de21f620b882..183fc42a510a 100644 --- a/drivers/remoteproc/remoteproc_virtio.c +++ b/drivers/remoteproc/remoteproc_virtio.c @@ -214,6 +214,16 @@ static u64 rproc_virtio_get_features(struct virtio_device *vdev) return rsc->dfeatures; } +static void rproc_transport_features(struct virtio_device *vdev) +{ + /* + * Packed ring isn't enabled on remoteproc for now, + * because remoteproc uses vring_new_virtqueue() which + * creates virtio rings on preallocated memory. + */ + __virtio_clear_bit(vdev, VIRTIO_F_RING_PACKED); +} + static int rproc_virtio_finalize_features(struct virtio_device *vdev) { struct rproc_vdev *rvdev = vdev_to_rvdev(vdev); @@ -224,6 +234,9 @@ static int rproc_virtio_finalize_features(struct virtio_device *vdev) /* Give virtio_ring a chance to accept features */ vring_transport_features(vdev); + /* Give virtio_rproc a chance to accept features. */ + rproc_transport_features(vdev); + /* Make sure we don't have any features > 32 bits! */ BUG_ON((u32)vdev->features != vdev->features); diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c index 97b6f197f007..406d1f64ad65 100644 --- a/drivers/s390/virtio/virtio_ccw.c +++ b/drivers/s390/virtio/virtio_ccw.c @@ -765,6 +765,17 @@ out_free: return rc; } +static void ccw_transport_features(struct virtio_device *vdev) +{ + /* + * Packed ring isn't enabled on virtio_ccw for now, + * because virtio_ccw uses some legacy accessors, + * e.g. virtqueue_get_avail() and virtqueue_get_used() + * which aren't available in packed ring currently. + */ + __virtio_clear_bit(vdev, VIRTIO_F_RING_PACKED); +} + static int virtio_ccw_finalize_features(struct virtio_device *vdev) { struct virtio_ccw_device *vcdev = to_vc_device(vdev); @@ -791,6 +802,9 @@ static int virtio_ccw_finalize_features(struct virtio_device *vdev) /* Give virtio_ring a chance to accept features. */ vring_transport_features(vdev); + /* Give virtio_ccw a chance to accept features. */ + ccw_transport_features(vdev); + features->index = 0; features->features = cpu_to_le32((u32)vdev->features); /* Write the first half of the feature bits to the host. */ |