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 <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2018-12-19 06:08:51 +00:00 коммит произвёл David S. Miller
Родитель b61cd7c6f9
Коммит 489c25f9a3
1 изменённых файлов: 392 добавлений и 0 удалений

Просмотреть файл

@ -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