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| author | Jason Wang <jasowang@redhat.com> | 2012-08-28 13:54:13 +0200 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2012-09-28 15:05:15 +0930 |
| commit | 17bb6d40880d4178f5f8a75900ed8c9ff47d3fb2 (patch) | |
| tree | f9888385b33c144f909eff14713a328dc72296f2 /include/linux/virtio.h | |
| parent | 7a23eb28fa645f1f0c2ec38274c11bc78c50c047 (diff) | |
| download | lwn-17bb6d40880d4178f5f8a75900ed8c9ff47d3fb2.tar.gz lwn-17bb6d40880d4178f5f8a75900ed8c9ff47d3fb2.zip | |
virtio-ring: move queue_index to vring_virtqueue
Instead of storing the queue index in transport-specific virtio structs,
this patch moves them to vring_virtqueue and introduces an helper to get
the value. This lets drivers simplify their management and tracing of
virtqueues.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'include/linux/virtio.h')
| -rw-r--r-- | include/linux/virtio.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/virtio.h b/include/linux/virtio.h index a1ba8bbd9fbe..533b1157f22e 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -50,6 +50,8 @@ void *virtqueue_detach_unused_buf(struct virtqueue *vq); unsigned int virtqueue_get_vring_size(struct virtqueue *vq); +int virtqueue_get_queue_index(struct virtqueue *vq); + /** * virtio_device - representation of a device using virtio * @index: unique position on the virtio bus |