Commit 3a7d84ea authored by Paolo Abeni's avatar Paolo Abeni Committed by David S. Miller
Browse files

self-tests: more rps self tests 



Explicitly check for child netns and main ns independency

Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 50bcfe8d

tools/testing/selftests/net/rps_default_mask.sh

+29 −12
Original line number Diff line number Diff line
@@ -8,7 +8,9 @@ ret=0 
[ $cpus -gt 2 ] || exit $ksft_skip



readonly INITIAL_RPS_DEFAULT_MASK=$(cat /proc/sys/net/core/rps_default_mask)

readonly NETNS="ns-$(mktemp -u XXXXXX)"

readonly TAG="$(mktemp -u XXXXXX)"

readonly VETH="veth${TAG}"

readonly NETNS="ns-${TAG}"



setup() {

	ip netns add "${NETNS}"
@@ -21,11 +23,15 @@ cleanup() { 
}



chk_rps() {

	local rps_mask expected_rps_mask=$3

	local dev_name=$2

	local rps_mask expected_rps_mask=$4

	local dev_name=$3

	local netns=$2

	local cmd="cat"

	local msg=$1



	rps_mask=$(ip netns exec $NETNS cat /sys/class/net/$dev_name/queues/rx-0/rps_cpus)

	[ -n "$netns" ] && cmd="ip netns exec $netns $cmd"



	rps_mask=$($cmd /sys/class/net/$dev_name/queues/rx-0/rps_cpus)

	printf "%-60s" "$msg"

	if [ $rps_mask -eq $expected_rps_mask ]; then

		echo "[ ok ]"
@@ -39,19 +45,30 @@ trap cleanup EXIT 


echo 0 > /proc/sys/net/core/rps_default_mask

setup

chk_rps "empty rps_default_mask" lo 0

chk_rps "empty rps_default_mask" $NETNS lo 0

cleanup



echo 1 > /proc/sys/net/core/rps_default_mask

setup

chk_rps "non zero rps_default_mask" lo 1

chk_rps "changing rps_default_mask dont affect existing devices" "" lo $INITIAL_RPS_DEFAULT_MASK



echo 3 > /proc/sys/net/core/rps_default_mask

chk_rps "changing rps_default_mask dont affect existing netns" lo 1

chk_rps "changing rps_default_mask dont affect existing netns" $NETNS lo 0



ip link add name $VETH type veth peer netns $NETNS name $VETH

ip link set dev $VETH up

ip -n $NETNS link set dev $VETH up

chk_rps "changing rps_default_mask affect newly created devices" "" $VETH 3

chk_rps "changing rps_default_mask don't affect newly child netns[II]" $NETNS $VETH 0

ip netns del $NETNS



setup

chk_rps "rps_default_mask is 0 by default in child netns" "$NETNS" lo 0



ip netns exec $NETNS sysctl -qw net.core.rps_default_mask=1

ip link add name $VETH type veth peer netns $NETNS name $VETH

chk_rps "changing rps_default_mask in child ns don't affect the main one" "" lo $INITIAL_RPS_DEFAULT_MASK

chk_rps "changing rps_default_mask in child ns affects new childns devices" $NETNS $VETH 1

chk_rps "changing rps_default_mask in child ns don't affect existing devices" $NETNS lo 0



ip -n $NETNS link add type veth

ip -n $NETNS link set dev veth0 up

ip -n $NETNS link set dev veth1 up

chk_rps "changing rps_default_mask affect newly created devices" veth0 3

chk_rps "changing rps_default_mask affect newly created devices[II]" veth1 3

exit $ret