From: Steven Luong <sluong@cisco.com>
Date: Thu, 2 Apr 2020 04:50:10 +0000 (-0700)
Subject: dpdk: VM VHOST tests with rxq>1 failing
X-Git-Tag: v20.09-rc0~288
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=refs%2Fchanges%2F01%2F26301%2F3;p=vpp.git

dpdk: VM VHOST tests with rxq>1 failing

DPDK recently added a check in the virtio driver to make sure that
rxmode->mq_mode == ETH_MQ_RX_NONE. We were passing ETH_MQ_RX_RSS
and the device initialization was not accepted.

The reason for the change in DPDK was that there is no controls
(algorithm, redirection table, hash function). So they thought ETH_MQ_RX_NONE
was the best choice for the value of mq_mode.

Type: fix
Ticket: VPP-1853

Signed-off-by: Steven Luong <sluong@cisco.com>
Change-Id: Ifa0fc4206cedc56a851f94f6434a2a7500bbd419
---

diff --git a/src/plugins/dpdk/device/init.c b/src/plugins/dpdk/device/init.c
index c994416ff4d..86443c8ff21 100644
--- a/src/plugins/dpdk/device/init.c
+++ b/src/plugins/dpdk/device/init.c
@@ -528,6 +528,7 @@ dpdk_lib_init (dpdk_main_t * dm)
 
 	      /* virtio */
 	    case VNET_DPDK_PMD_VIRTIO:
+	      xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_NONE;
 	      xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
 	      xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
 	      xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;