virtio: free mbuf's with threshold

[dpdk.git] / lib / librte_pmd_virtio / virtio_ethdev.c

diff --git a/lib/librte_pmd_virtio/virtio_ethdev.c b/lib/librte_pmd_virtio/virtio_ethdev.c
index 6c224d4..7556e11 100644 (file)
--- a/lib/librte_pmd_virtio/virtio_ethdev.c
+++ b/lib/librte_pmd_virtio/virtio_ethdev.c
@@ -176,15 +176,16 @@ virtio_send_command(struct virtqueue *vq, struct virtio_pmd_ctrl *ctrl,
 
        virtqueue_notify(vq);
 
-       while (vq->vq_used_cons_idx == vq->vq_ring.used->idx)
+       rte_rmb();
+       while (vq->vq_used_cons_idx == vq->vq_ring.used->idx) {
+               rte_rmb();
                usleep(100);
+       }
 
        while (vq->vq_used_cons_idx != vq->vq_ring.used->idx) {
                uint32_t idx, desc_idx, used_idx;
                struct vring_used_elem *uep;
 
-               virtio_rmb();
-
                used_idx = (uint32_t)(vq->vq_used_cons_idx
                                & (vq->vq_nentries - 1));
                uep = &vq->vq_ring.used->ring[used_idx];