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authorSteven Luong <sluong@cisco.com>2020-02-12 18:45:09 -0800
committerDamjan Marion <dmarion@me.com>2020-02-14 13:12:53 +0000
commitac8bb9263438221cc93db62257ffd8db711530e2 (patch)
tree314fd6efd0354a69de0304161d90b754b9e65a0d
parentcd120f9bbb2101dfd7eca11d1a28e06ac5ace479 (diff)
dpdk: TSO does not work for Cisco VIC
While TSO is supported for Intel NIC, Cisco VIC does not work. The problem is due to txmode offloads is not properly set for the Cisco VIC when enable-tcp-udp-checksum is configured. Type: fix Ticket: VPP-1838 Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: I72c41db9b327ed8d08ef70d74e8cc6206d4a102f
-rw-r--r--src/plugins/dpdk/device/init.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/plugins/dpdk/device/init.c b/src/plugins/dpdk/device/init.c
index f668d98db5d..6d327cbdb24 100644
--- 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)
{
@@ -482,6 +491,8 @@ 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 */