[dpdk-dev] [RFC 24/29] net/virtio: cleanup txd when free count below threshold

[Tiwei Bie]

Signed-off-by: Tiwei Bie <tiwei.bie at intel.com>
---
 drivers/net/virtio/virtio_rxtx_1.1.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/virtio/virtio_rxtx_1.1.c b/drivers/net/virtio/virtio_rxtx_1.1.c
index fdc7402..4602e6d 100644
--- a/drivers/net/virtio/virtio_rxtx_1.1.c
+++ b/drivers/net/virtio/virtio_rxtx_1.1.c
@@ -129,6 +129,9 @@ virtio_xmit_pkts_1_1(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts
 
 	PMD_TX_LOG(DEBUG, "%d packets to xmit", nb_pkts);
 
+	if (likely(vq->vq_free_cnt < vq->vq_free_thresh))
+		virtio_xmit_cleanup(vq);
+
 	for (i = 0; i < nb_pkts; i++) {
 		struct rte_mbuf *txm = tx_pkts[i];
 
-- 
2.7.4