It needs use virtio_wmb instead of virtio_rmb for store memory barrier.
Signed-off-by: Changchun Ouyang <changchun.ouyang at intel.com>
---
lib/librte_pmd_virtio/virtqueue.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/librte_pmd_virtio/virtqueue.h
b/lib/librte_pmd_virtio/virtqueue.h
index 6c45c27..41dda50 100644
--- a/lib/librte_pmd_virtio/virtqueue.h
+++ b/lib/librte_pmd_virtio/virtqueue.h
@@ -266,7 +266,7 @@ virtqueue_full(const struct virtqueue *vq)
static inline void
vq_update_avail_idx(struct virtqueue *vq)
{
- virtio_rmb();
+ virtio_wmb();
vq->vq_ring.avail->idx = vq->vq_avail_idx;
}
--
1.8.4.2
