#
# Startup script to disable TSO on ethernet interfaces using
# the "igb" driver.  This works-around a performance issue
# with this driver in Jenner.  Details in:
#
#    https://bugzilla.vyatta.com/show_bug.cgi?id=5100
# 

ACTION=$1

start()
{
    for i in /sys/class/net/eth* ; do
	if [ -d $i ]; then
	    ifname=${i#/sys/class/net/}
	    driver=`/usr/sbin/ethtool -i $ifname | grep ^driver | awk '{print $2}'`
	    if [ "$driver" = "igb" ]; then
		logger -t "vyatta-no-tso" -p local0.warning "Disabling TSO on $ifname"
		/usr/sbin/ethtool -K $ifname tso off
	    fi
	fi
    done
}

case "$ACTION" in
    start)
	start
	;;
    *)
	echo "usage: $0 start"
	exit 1
	;;
esac

exit 0