|  | #ifndef _LINUX_VIRTIO_RING_H | 
|  | #define _LINUX_VIRTIO_RING_H | 
|  |  | 
|  | #include <linux/irqreturn.h> | 
|  | #include <uapi/linux/virtio_ring.h> | 
|  |  | 
|  | struct virtio_device; | 
|  | struct virtqueue; | 
|  |  | 
|  | struct virtqueue *vring_new_virtqueue(unsigned int index, | 
|  | unsigned int num, | 
|  | unsigned int vring_align, | 
|  | struct virtio_device *vdev, | 
|  | bool weak_barriers, | 
|  | void *pages, | 
|  | void (*notify)(struct virtqueue *vq), | 
|  | void (*callback)(struct virtqueue *vq), | 
|  | const char *name); | 
|  | void vring_del_virtqueue(struct virtqueue *vq); | 
|  | /* Filter out transport-specific feature bits. */ | 
|  | void vring_transport_features(struct virtio_device *vdev); | 
|  |  | 
|  | irqreturn_t vring_interrupt(int irq, void *_vq); | 
|  | #endif /* _LINUX_VIRTIO_RING_H */ |