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authorSteven Luong <sluong@cisco.com>2020-02-12 18:45:09 -0800
committerAndrew Yourtchenko <ayourtch@gmail.com>2020-02-29 16:42:14 +0000
commit03bcbd3621867dac4c5dcb32b59f70424a7bc4d9 (patch)
treec4c121bdb53973078d46ec3c6d5a17562d967db5
parentc7a00641f8004d87d38a1092ab16da8f49bd6cf2 (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 b5f0ec7e563..056544646ed 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)
{
@@ -496,6 +505,8 @@ 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 */