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dpdk: TSO does not work for Cisco VIC

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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
This commit is contained in:
Steven Luong 2020-02-12 18:45:09 -08:00 committed by Andrew Yourtchenko
parent c7a00641f8
commit 03bcbd3621
1 changed files with 11 additions and 0 deletions
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11
src/plugins/dpdk/device/init.c
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@ -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 */