Disable vlan offload as it causes performance degradation.

Change-Id: Id7bd20a040a1aa3c1ad4b1c6f68c10a9836d6108 Closes-Bug: 1641254
Juniper · Nov 14, 2016 · cbbe4d4 · cbbe4d4
1 parent e8e263d
commit cbbe4d4
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/dpdk/vr_dpdk_interface.c b/dpdk/vr_dpdk_interface.c
@@ -221,8 +221,6 @@ dpdk_set_addr_vlan_filter_strip(uint32_t port_id, struct vr_interface *vif)
         {
             if (vif->vif_flags & VIF_FLAG_VLAN_OFFLOAD) {
                 rte_eth_dev_set_vlan_strip_on_queue(*port_id_ptr, i, 1);
-            } else {
-                rte_eth_dev_set_vlan_strip_on_queue(*port_id_ptr, i, 0);
             }
         }
         port_num++;
@@ -251,7 +249,10 @@ dpdk_vif_attach_ethdev(struct vr_interface *vif,
 
     if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_VLAN_INSERT
         && dev_info.rx_offload_capa & DEV_RX_OFFLOAD_VLAN_STRIP) {
-        vif->vif_flags |= VIF_FLAG_VLAN_OFFLOAD;
+        /*
+         * Enabling vlan offload causes performance degradation, possibly
+         * dut to a DPDK library issue, so don't set VIF_FLAG_VLAN_OFFLOAD
+         */
     } else {
         vif->vif_flags &= ~VIF_FLAG_VLAN_OFFLOAD;
     }