From 17bb6d40880d4178f5f8a75900ed8c9ff47d3fb2 Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Tue, 28 Aug 2012 13:54:13 +0200 Subject: 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 Signed-off-by: Paolo Bonzini Signed-off-by: Rusty Russell --- include/linux/virtio.h | 2 ++ include/linux/virtio_ring.h | 3 ++- 2 files changed, 4 insertions(+), 1 deletion(-) (limited to 'include/linux') 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 diff --git a/include/linux/virtio_ring.h b/include/linux/virtio_ring.h index e338730c2660..c2d793a06ad7 100644 --- a/include/linux/virtio_ring.h +++ b/include/linux/virtio_ring.h @@ -165,7 +165,8 @@ static inline int vring_need_event(__u16 event_idx, __u16 new_idx, __u16 old) struct virtio_device; struct virtqueue; -struct virtqueue *vring_new_virtqueue(unsigned int num, +struct virtqueue *vring_new_virtqueue(unsigned int index, + unsigned int num, unsigned int vring_align, struct virtio_device *vdev, bool weak_barriers, -- cgit v1.2.3