selftests: mptcp: add ms units for tc-netem delay

'delay 1' in tc-netem is confusing, not sure if it's a delay of 1 second or
1 millisecond. This patch explicitly adds millisecond units to make these
commands clearer.
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

tools/testing/selftests/net/mptcp/mptcp_join.sh

@@ -125,8 +125,8 @@ init_shapers()
 {
 	local i
 	for i in $(seq 1 4); do
-		tc -n $ns1 qdisc add dev ns1eth$i root netem rate 20mbit delay 1
-		tc -n $ns2 qdisc add dev ns2eth$i root netem rate 20mbit delay 1
+		tc -n $ns1 qdisc add dev ns1eth$i root netem rate 20mbit delay 1ms
+		tc -n $ns2 qdisc add dev ns2eth$i root netem rate 20mbit delay 1ms
 	done
 }
 
@@ -3212,7 +3212,7 @@ fail_tests()
 
 	# multiple subflows
 	if reset_with_fail "MP_FAIL MP_RST" 2; then
-		tc -n $ns2 qdisc add dev ns2eth1 root netem rate 1mbit delay 5
+		tc -n $ns2 qdisc add dev ns2eth1 root netem rate 1mbit delay 5ms
 		pm_nl_set_limits $ns1 0 1
 		pm_nl_set_limits $ns2 0 1
 		pm_nl_add_endpoint $ns2 10.0.2.2 dev ns2eth2 flags subflow

tools/testing/selftests/net/mptcp/simult_flows.sh

@@ -216,8 +216,8 @@ run_test()
 	shift 4
 	local msg=$*
 
-	[ $delay1 -gt 0 ] && delay1="delay $delay1" || delay1=""
-	[ $delay2 -gt 0 ] && delay2="delay $delay2" || delay2=""
+	[ $delay1 -gt 0 ] && delay1="delay ${delay1}ms" || delay1=""
+	[ $delay2 -gt 0 ] && delay2="delay ${delay2}ms" || delay2=""
 
 	for dev in ns1eth1 ns1eth2; do
 		tc -n $ns1 qdisc del dev $dev root >/dev/null 2>&1