dpdk: rx checksum offload

[vpp.git] / src / plugins / dpdk / device / init.c

diff --git a/src/plugins/dpdk/device/init.c b/src/plugins/dpdk/device/init.c
index f668d98..ac79ac4 100644 (file)
--- a/src/plugins/dpdk/device/init.c
+++ b/src/plugins/dpdk/device/init.c
@@ -199,6 +199,15 @@ check_l3cache ()
   return 0;
 }
 
+static void
+dpdk_enable_l4_csum_offload (dpdk_device_t * xd)
+{
+  xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
+  xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
+  xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD |
+    DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
+}
+
 static clib_error_t *
 dpdk_lib_init (dpdk_main_t * dm)
 {
@@ -340,6 +349,14 @@ dpdk_lib_init (dpdk_main_t * dm)
          xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM;
        }
 
+      if (dm->conf->enable_tcp_udp_checksum)
+       {
+         if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_UDP_CKSUM)
+           xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_UDP_CKSUM;
+         if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_TCP_CKSUM)
+           xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_TCP_CKSUM;
+       }
+
       if (dm->conf->no_multi_seg)
        {
          xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
@@ -482,6 +499,8 @@ dpdk_lib_init (dpdk_main_t * dm)
              /* Cisco VIC */
            case VNET_DPDK_PMD_ENIC:
              xd->port_type = port_type_from_link_speed (l.link_speed);
+             if (dm->conf->enable_tcp_udp_checksum)
+               dpdk_enable_l4_csum_offload (xd);
              break;
 
              /* Intel Red Rock Canyon */