};
static inline int
-__desc_is_used(struct vring_packed_desc *desc, bool wrap_counter)
+desc_is_used(struct vring_packed_desc *desc, struct virtqueue *vq)
{
uint16_t used, avail, flags;
used = !!(flags & VRING_DESC_F_USED(1));
avail = !!(flags & VRING_DESC_F_AVAIL(1));
- return avail == used && used == wrap_counter;
-}
-
-static inline int
-desc_is_used(struct vring_packed_desc *desc, struct virtqueue *vq)
-{
- return __desc_is_used(desc, vq->used_wrap_counter);
+ return avail == used && used == vq->used_wrap_counter;
}
-
static inline void
vring_desc_init_packed(struct virtqueue *vq, int n)
{
{
uint16_t *event_flags = &vq->ring_packed.driver_event->desc_event_flags;
-
if (vq->event_flags_shadow == RING_EVENT_FLAGS_DISABLE) {
virtio_wmb(vq->hw->weak_barriers);
vq->event_flags_shadow = RING_EVENT_FLAGS_ENABLE;