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#
# 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
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