netdev-dpdk: Do not flush tx queue which is shared among CPUs since it is always...

[cascardo/ovs.git] / lib / netdev-dpdk.c

diff --git a/lib/netdev-dpdk.c b/lib/netdev-dpdk.c
index 3af1ee7..97689dd 100644 (file)
--- a/lib/netdev-dpdk.c
+++ b/lib/netdev-dpdk.c
@@ -928,8 +928,11 @@ netdev_dpdk_rxq_recv(struct netdev_rxq *rxq_, struct dp_packet **packets,
     int nb_rx;
 
     /* There is only one tx queue for this core.  Do not flush other
-     * queueus. */
-    if (rxq_->queue_id == rte_lcore_id()) {
+     * queues.
+     * Do not flush tx queue which is shared among CPUs
+     * since it is always flushed */
+    if (rxq_->queue_id == rte_lcore_id() &&
+        OVS_LIKELY(!dev->txq_needs_locking)) {
         dpdk_queue_flush(dev, rxq_->queue_id);
     }