selftests: rtnetlink: Test bridge enslavement with different parent IDs

Test that an upper device of netdevs with different parent IDs can be
enslaved to a bridge.

The test fails without previous commit.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh
index 7c38a90..8a2fe6d 100755 (executable)
--- a/tools/testing/selftests/net/rtnetlink.sh
+++ b/tools/testing/selftests/net/rtnetlink.sh
@@ -1175,6 +1175,51 @@ kci_test_neigh_get()
        echo "PASS: neigh get"
 }
 
+kci_test_bridge_parent_id()
+{
+       local ret=0
+       sysfsnet=/sys/bus/netdevsim/devices/netdevsim
+       probed=false
+
+       if [ ! -w /sys/bus/netdevsim/new_device ] ; then
+               modprobe -q netdevsim
+               check_err $?
+               if [ $ret -ne 0 ]; then
+                       echo "SKIP: bridge_parent_id can't load netdevsim"
+                       return $ksft_skip
+               fi
+               probed=true
+       fi
+
+       echo "10 1" > /sys/bus/netdevsim/new_device
+       while [ ! -d ${sysfsnet}10 ] ; do :; done
+       echo "20 1" > /sys/bus/netdevsim/new_device
+       while [ ! -d ${sysfsnet}20 ] ; do :; done
+       udevadm settle
+       dev10=`ls ${sysfsnet}10/net/`
+       dev20=`ls ${sysfsnet}20/net/`
+
+       ip link add name test-bond0 type bond mode 802.3ad
+       ip link set dev $dev10 master test-bond0
+       ip link set dev $dev20 master test-bond0
+       ip link add name test-br0 type bridge
+       ip link set dev test-bond0 master test-br0
+       check_err $?
+
+       # clean up any leftovers
+       ip link del dev test-br0
+       ip link del dev test-bond0
+       echo 20 > /sys/bus/netdevsim/del_device
+       echo 10 > /sys/bus/netdevsim/del_device
+       $probed && rmmod netdevsim
+
+       if [ $ret -ne 0 ]; then
+               echo "FAIL: bridge_parent_id"
+               return 1
+       fi
+       echo "PASS: bridge_parent_id"
+}
+
 kci_test_rtnl()
 {
        local ret=0
@@ -1224,6 +1269,8 @@ kci_test_rtnl()
        check_err $?
        kci_test_neigh_get
        check_err $?
+       kci_test_bridge_parent_id
+       check_err $?
 
        kci_del_dummy
        return $ret