From 3e8d48769383e9fb8500dd05081a73c270a30d9a Mon Sep 17 00:00:00 2001
From: Sebastian Sch <sebassch@gmail.com>
Date: Mon, 25 Jul 2022 17:19:50 +0300
Subject: [PATCH] load vhost-net kernel module

This commit is needed when using DPDK with vhost-net in virtio mode.
We must load the vhost-net kernel module if we don't want the dpdk
application to run with privilege

Signed-off-by: Sebastian Sch <sebassch@gmail.com>
---
 pkg/daemon/daemon.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pkg/daemon/daemon.go b/pkg/daemon/daemon.go
index 73f7ebb93..f56ba36af 100644
--- a/pkg/daemon/daemon.go
+++ b/pkg/daemon/daemon.go
@@ -206,6 +206,7 @@ func (dn *Daemon) Run(stopCh <-chan struct{}, exitCh <-chan error) error {
 
 	tryEnableRdma()
 	tryEnableTun()
+	tryEnableVhostNet()
 
 	if err := dn.tryCreateUdevRuleWrapper(); err != nil {
 		return err
@@ -905,6 +906,12 @@ func tryEnableTun() {
 	}
 }
 
+func tryEnableVhostNet() {
+	if err := utils.LoadKernelModule("vhost_net"); err != nil {
+		glog.Errorf("tryEnableVhostNet(): VHOST_NET kernel module not loaded: %v", err)
+	}
+}
+
 func tryEnableRdma() (bool, error) {
 	glog.V(2).Infof("tryEnableRdma()")
 	var stdout, stderr bytes.Buffer