From 489c25f9a375ba1e780dcf445ca74f6b3766d1b5 Mon Sep 17 00:00:00 2001 From: Ido Schimmel Date: Wed, 19 Dec 2018 06:08:51 +0000 Subject: selftests: mlxsw: Add rtnetlink tests Add a new test that is focused on rtnetlink configuration. Its purpose is to test valid and invalid (as deemed by mlxsw) configurations and make sure that they succeed / fail without producing a trace. Some of the test cases are derived from recent fixes in order to make sure that the fixed bugs are not introduced again. Signed-off-by: Ido Schimmel Reviewed-by: Petr Machata Signed-off-by: David S. Miller --- .../selftests/drivers/net/mlxsw/rtnetlink.sh | 392 +++++++++++++++++++++ 1 file changed, 392 insertions(+) (limited to 'tools/testing/selftests/drivers') diff --git a/tools/testing/selftests/drivers/net/mlxsw/rtnetlink.sh b/tools/testing/selftests/drivers/net/mlxsw/rtnetlink.sh index 7f78b96279f3..9040bfbddfba 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/rtnetlink.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/rtnetlink.sh @@ -13,9 +13,23 @@ ALL_TESTS=" rif_set_addr_test rif_inherit_bridge_addr_test rif_non_inherit_bridge_addr_test + vlan_interface_deletion_test + bridge_deletion_test + bridge_vlan_flags_test + vlan_1_test + lag_bridge_upper_test + duplicate_vlans_test + vlan_rif_refcount_test + subport_rif_refcount_test + vlan_dev_deletion_test + lag_unlink_slaves_test + lag_dev_deletion_test + vlan_interface_uppers_test + devlink_reload_test " NUM_NETIFS=2 source $lib_dir/lib.sh +source $lib_dir/devlink_lib.sh setup_prepare() { @@ -160,6 +174,384 @@ rif_non_inherit_bridge_addr_test() ip addr del dev $swp1 192.0.2.1/28 } +vlan_interface_deletion_test() +{ + # Test that when a VLAN interface is deleted, its associated router + # interface (RIF) is correctly deleted and not leaked. See commit + # c360867ec46a ("mlxsw: spectrum: Delete RIF when VLAN device is + # removed") for more details + RET=0 + + ip link add name br0 type bridge vlan_filtering 1 + ip link set dev $swp1 master br0 + + ip link add link br0 name br0.10 type vlan id 10 + ip -6 address add 2001:db8:1::1/64 dev br0.10 + ip link del dev br0.10 + + # If we leaked the previous RIF, then this should produce a trace + ip link add link br0 name br0.20 type vlan id 20 + ip -6 address add 2001:db8:1::1/64 dev br0.20 + ip link del dev br0.20 + + log_test "vlan interface deletion" + + ip link del dev br0 +} + +bridge_deletion_test() +{ + # Test that when a bridge with VLAN interfaces is deleted, we correctly + # delete the associated RIFs. See commit 602b74eda813 ("mlxsw: + # spectrum_switchdev: Do not leak RIFs when removing bridge") for more + # details + RET=0 + + ip link add name br0 type bridge vlan_filtering 1 + ip link set dev $swp1 master br0 + ip -6 address add 2001:db8::1/64 dev br0 + + ip link add link br0 name br0.10 type vlan id 10 + ip -6 address add 2001:db8:1::1/64 dev br0.10 + + ip link add link br0 name br0.20 type vlan id 20 + ip -6 address add 2001:db8:2::1/64 dev br0.20 + + ip link del dev br0 + + # If we leaked previous RIFs, then this should produce a trace + ip -6 address add 2001:db8:1::1/64 dev $swp1 + ip -6 address del 2001:db8:1::1/64 dev $swp1 + + log_test "bridge deletion" +} + +bridge_vlan_flags_test() +{ + # Test that when bridge VLAN flags are toggled, we do not take + # unnecessary references on related structs. See commit 9e25826ffc94 + # ("mlxsw: spectrum_switchdev: Fix port_vlan refcounting") for more + # details + RET=0 + + ip link add name br0 type bridge vlan_filtering 1 + ip link set dev $swp1 master br0 + + bridge vlan add vid 10 dev $swp1 pvid untagged + bridge vlan add vid 10 dev $swp1 untagged + bridge vlan add vid 10 dev $swp1 pvid + bridge vlan add vid 10 dev $swp1 + ip link del dev br0 + + # If we did not handle references correctly, then this should produce a + # trace + devlink dev reload "$DEVLINK_DEV" + + # Allow netdevices to be re-created following the reload + sleep 20 + + log_test "bridge vlan flags" +} + +vlan_1_test() +{ + # Test that VLAN 1 cannot be configured, as it is used internally for + # untagged traffic. See commit 47bf9df2e820 ("mlxsw: spectrum: Forbid + # creation of VLAN 1 over port/LAG") for more details + RET=0 + + ip link add link $swp1 name $swp1.1 type vlan id 1 &> /dev/null + check_fail $? "managed to create vlan 1 when should not" + + log_test "vlan 1" +} + +lag_bridge_upper_test() +{ + # Test that ports cannot be enslaved to LAG devices that have uppers + # and that failure is handled gracefully. See commit b3529af6bb0d + # ("spectrum: Reference count VLAN entries") for more details + RET=0 + + ip link add name bond1 type bond mode 802.3ad + + ip link add name br0 type bridge vlan_filtering 1 + ip link set dev bond1 master br0 + + ip link set dev $swp1 down + ip link set dev $swp1 master bond1 &> /dev/null + check_fail $? "managed to enslave port to lag when should not" + + # This might generate a trace, if we did not handle the failure + # correctly + ip -6 address add 2001:db8:1::1/64 dev $swp1 + ip -6 address del 2001:db8:1::1/64 dev $swp1 + + log_test "lag with bridge upper" + + ip link del dev br0 + ip link del dev bond1 +} + +duplicate_vlans_test() +{ + # Test that on a given port a VLAN is only used once. Either as VLAN + # in a VLAN-aware bridge or as a VLAN device + RET=0 + + ip link add name br0 type bridge vlan_filtering 1 + ip link set dev $swp1 master br0 + bridge vlan add vid 10 dev $swp1 + + ip link add link $swp1 name $swp1.10 type vlan id 10 &> /dev/null + check_fail $? "managed to create vlan device when should not" + + bridge vlan del vid 10 dev $swp1 + ip link add link $swp1 name $swp1.10 type vlan id 10 + check_err $? "did not manage to create vlan device when should" + bridge vlan add vid 10 dev $swp1 &> /dev/null + check_fail $? "managed to add bridge vlan when should not" + + log_test "duplicate vlans" + + ip link del dev $swp1.10 + ip link del dev br0 +} + +vlan_rif_refcount_test() +{ + # Test that RIFs representing VLAN interfaces are not affected from + # ports member in the VLAN. We use the offload indication on routes + # configured on the RIF to understand if it was created / destroyed + RET=0 + + ip link add name br0 type bridge vlan_filtering 1 + ip link set dev $swp1 master br0 + + ip link set dev $swp1 up + ip link set dev br0 up + + ip link add link br0 name br0.10 up type vlan id 10 + ip -6 address add 2001:db8:1::1/64 dev br0.10 + + ip -6 route get fibmatch 2001:db8:1::2 dev br0.10 | grep -q offload + check_err $? "vlan rif was not created before adding port to vlan" + + bridge vlan add vid 10 dev $swp1 + ip -6 route get fibmatch 2001:db8:1::2 dev br0.10 | grep -q offload + check_err $? "vlan rif was destroyed after adding port to vlan" + + bridge vlan del vid 10 dev $swp1 + ip -6 route get fibmatch 2001:db8:1::2 dev br0.10 | grep -q offload + check_err $? "vlan rif was destroyed after removing port from vlan" + + ip link set dev $swp1 nomaster + ip -6 route get fibmatch 2001:db8:1::2 dev br0.10 | grep -q offload + check_fail $? "vlan rif was not destroyed after unlinking port from bridge" + + log_test "vlan rif refcount" + + ip link del dev br0.10 + ip link set dev $swp1 down + ip link del dev br0 +} + +subport_rif_refcount_test() +{ + # Test that RIFs representing upper devices of physical ports are + # reference counted correctly and destroyed when should. We use the + # offload indication on routes configured on the RIF to understand if + # it was created / destroyed + RET=0 + + ip link add name bond1 type bond mode 802.3ad + ip link set dev $swp1 down + ip link set dev $swp2 down + ip link set dev $swp1 master bond1 + ip link set dev $swp2 master bond1 + + ip link set dev bond1 up + ip link add link bond1 name bond1.10 up type vlan id 10 + ip -6 address add 2001:db8:1::1/64 dev bond1 + ip -6 address add 2001:db8:2::1/64 dev bond1.10 + + ip -6 route get fibmatch 2001:db8:1::2 dev bond1 | grep -q offload + check_err $? "subport rif was not created on lag device" + ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10 | grep -q offload + check_err $? "subport rif was not created on vlan device" + + ip link set dev $swp1 nomaster + ip -6 route get fibmatch 2001:db8:1::2 dev bond1 | grep -q offload + check_err $? "subport rif of lag device was destroyed when should not" + ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10 | grep -q offload + check_err $? "subport rif of vlan device was destroyed when should not" + + ip link set dev $swp2 nomaster + ip -6 route get fibmatch 2001:db8:1::2 dev bond1 | grep -q offload + check_fail $? "subport rif of lag device was not destroyed when should" + ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10 | grep -q offload + check_fail $? "subport rif of vlan device was not destroyed when should" + + log_test "subport rif refcount" + + ip link del dev bond1.10 + ip link del dev bond1 +} + +vlan_dev_deletion_test() +{ + # Test that VLAN devices are correctly deleted / unlinked when enslaved + # to bridge + RET=0 + + ip link add name br10 type bridge + ip link add name br20 type bridge + ip link add name br30 type bridge + ip link add link $swp1 name $swp1.10 type vlan id 10 + ip link add link $swp1 name $swp1.20 type vlan id 20 + ip link add link $swp1 name $swp1.30 type vlan id 30 + ip link set dev $swp1.10 master br10 + ip link set dev $swp1.20 master br20 + ip link set dev $swp1.30 master br30 + + # If we did not handle the situation correctly, then these operations + # might produce a trace + ip link set dev $swp1.30 nomaster + ip link del dev $swp1.20 + # Deletion via ioctl uses different code paths from netlink + vconfig rem $swp1.10 &> /dev/null + + log_test "vlan device deletion" + + ip link del dev $swp1.30 + ip link del dev br30 + ip link del dev br20 + ip link del dev br10 +} + +lag_create() +{ + ip link add name bond1 type bond mode 802.3ad + ip link set dev $swp1 down + ip link set dev $swp2 down + ip link set dev $swp1 master bond1 + ip link set dev $swp2 master bond1 + + ip link add link bond1 name bond1.10 type vlan id 10 + ip link add link bond1 name bond1.20 type vlan id 20 + + ip link add name br0 type bridge vlan_filtering 1 + ip link set dev bond1 master br0 + + ip link add name br10 type bridge + ip link set dev bond1.10 master br10 + + ip link add name br20 type bridge + ip link set dev bond1.20 master br20 +} + +lag_unlink_slaves_test() +{ + # Test that ports are correctly unlinked from their LAG master, when + # the LAG and its VLAN uppers are enslaved to bridges + RET=0 + + lag_create + + ip link set dev $swp1 nomaster + check_err $? "lag slave $swp1 was not unlinked from master" + ip link set dev $swp2 nomaster + check_err $? "lag slave $swp2 was not unlinked from master" + + # Try to configure corresponding VLANs as router interfaces + ip -6 address add 2001:db8:1::1/64 dev $swp1 + check_err $? "failed to configure ip address on $swp1" + + ip link add link $swp1 name $swp1.10 type vlan id 10 + ip -6 address add 2001:db8:10::1/64 dev $swp1.10 + check_err $? "failed to configure ip address on $swp1.10" + + ip link add link $swp1 name $swp1.20 type vlan id 20 + ip -6 address add 2001:db8:20::1/64 dev $swp1.20 + check_err $? "failed to configure ip address on $swp1.20" + + log_test "lag slaves unlinking" + + ip link del dev $swp1.20 + ip link del dev $swp1.10 + ip address flush dev $swp1 + + ip link del dev br20 + ip link del dev br10 + ip link del dev br0 + ip link del dev bond1 +} + +lag_dev_deletion_test() +{ + # Test that LAG device is correctly deleted, when the LAG and its VLAN + # uppers are enslaved to bridges + RET=0 + + lag_create + + ip link del dev bond1 + + log_test "lag device deletion" + + ip link del dev br20 + ip link del dev br10 + ip link del dev br0 +} + +vlan_interface_uppers_test() +{ + # Test that uppers of a VLAN interface are correctly sanitized + RET=0 + + ip link add name br0 type bridge vlan_filtering 1 + ip link set dev $swp1 master br0 + + ip link add link br0 name br0.10 type vlan id 10 + ip link add link br0.10 name macvlan0 \ + type macvlan mode private &> /dev/null + check_fail $? "managed to create a macvlan when should not" + + ip -6 address add 2001:db8:1::1/64 dev br0.10 + ip link add link br0.10 name macvlan0 type macvlan mode private + check_err $? "did not manage to create a macvlan when should" + + ip link del dev macvlan0 + + ip link add name vrf-test type vrf table 10 + ip link set dev br0.10 master vrf-test + check_err $? "did not manage to enslave vlan interface to vrf" + ip link del dev vrf-test + + ip link add name br-test type bridge + ip link set dev br0.10 master br-test &> /dev/null + check_fail $? "managed to enslave vlan interface to bridge when should not" + ip link del dev br-test + + log_test "vlan interface uppers" + + ip link del dev br0 +} + +devlink_reload_test() +{ + # Test that after executing all the above configuration tests, a + # devlink reload can be performed without errors + RET=0 + + devlink dev reload "$DEVLINK_DEV" + check_err $? "devlink reload failed" + + log_test "devlink reload - last test" + + sleep 20 +} + trap cleanup EXIT setup_prepare -- cgit