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https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
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
David S. Miller
parent
b61cd7c6f9
commit
489c25f9a3
1 changed files with 392 additions and 0 deletions
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@ -13,9 +13,23 @@ ALL_TESTS="
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rif_set_addr_test
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rif_inherit_bridge_addr_test
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rif_non_inherit_bridge_addr_test
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vlan_interface_deletion_test
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bridge_deletion_test
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bridge_vlan_flags_test
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vlan_1_test
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lag_bridge_upper_test
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duplicate_vlans_test
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vlan_rif_refcount_test
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subport_rif_refcount_test
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vlan_dev_deletion_test
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lag_unlink_slaves_test
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lag_dev_deletion_test
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vlan_interface_uppers_test
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devlink_reload_test
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"
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NUM_NETIFS=2
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source $lib_dir/lib.sh
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source $lib_dir/devlink_lib.sh
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setup_prepare()
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{
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@ -160,6 +174,384 @@ rif_non_inherit_bridge_addr_test()
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ip addr del dev $swp1 192.0.2.1/28
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}
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vlan_interface_deletion_test()
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{
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# Test that when a VLAN interface is deleted, its associated router
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# interface (RIF) is correctly deleted and not leaked. See commit
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# c360867ec46a ("mlxsw: spectrum: Delete RIF when VLAN device is
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# removed") for more details
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RET=0
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ip link add name br0 type bridge vlan_filtering 1
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ip link set dev $swp1 master br0
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ip link add link br0 name br0.10 type vlan id 10
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ip -6 address add 2001:db8:1::1/64 dev br0.10
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ip link del dev br0.10
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# If we leaked the previous RIF, then this should produce a trace
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ip link add link br0 name br0.20 type vlan id 20
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ip -6 address add 2001:db8:1::1/64 dev br0.20
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ip link del dev br0.20
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log_test "vlan interface deletion"
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ip link del dev br0
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}
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bridge_deletion_test()
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{
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# Test that when a bridge with VLAN interfaces is deleted, we correctly
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# delete the associated RIFs. See commit 602b74eda813 ("mlxsw:
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# spectrum_switchdev: Do not leak RIFs when removing bridge") for more
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# details
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RET=0
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ip link add name br0 type bridge vlan_filtering 1
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ip link set dev $swp1 master br0
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ip -6 address add 2001:db8::1/64 dev br0
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ip link add link br0 name br0.10 type vlan id 10
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ip -6 address add 2001:db8:1::1/64 dev br0.10
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ip link add link br0 name br0.20 type vlan id 20
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ip -6 address add 2001:db8:2::1/64 dev br0.20
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ip link del dev br0
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# If we leaked previous RIFs, then this should produce a trace
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ip -6 address add 2001:db8:1::1/64 dev $swp1
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ip -6 address del 2001:db8:1::1/64 dev $swp1
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log_test "bridge deletion"
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}
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bridge_vlan_flags_test()
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{
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# Test that when bridge VLAN flags are toggled, we do not take
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# unnecessary references on related structs. See commit 9e25826ffc94
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# ("mlxsw: spectrum_switchdev: Fix port_vlan refcounting") for more
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# details
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RET=0
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ip link add name br0 type bridge vlan_filtering 1
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ip link set dev $swp1 master br0
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bridge vlan add vid 10 dev $swp1 pvid untagged
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bridge vlan add vid 10 dev $swp1 untagged
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bridge vlan add vid 10 dev $swp1 pvid
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bridge vlan add vid 10 dev $swp1
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ip link del dev br0
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# If we did not handle references correctly, then this should produce a
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# trace
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devlink dev reload "$DEVLINK_DEV"
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# Allow netdevices to be re-created following the reload
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sleep 20
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log_test "bridge vlan flags"
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}
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vlan_1_test()
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{
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# Test that VLAN 1 cannot be configured, as it is used internally for
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# untagged traffic. See commit 47bf9df2e820 ("mlxsw: spectrum: Forbid
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# creation of VLAN 1 over port/LAG") for more details
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RET=0
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ip link add link $swp1 name $swp1.1 type vlan id 1 &> /dev/null
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check_fail $? "managed to create vlan 1 when should not"
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log_test "vlan 1"
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}
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lag_bridge_upper_test()
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{
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# Test that ports cannot be enslaved to LAG devices that have uppers
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# and that failure is handled gracefully. See commit b3529af6bb0d
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# ("spectrum: Reference count VLAN entries") for more details
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RET=0
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ip link add name bond1 type bond mode 802.3ad
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ip link add name br0 type bridge vlan_filtering 1
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ip link set dev bond1 master br0
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ip link set dev $swp1 down
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ip link set dev $swp1 master bond1 &> /dev/null
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check_fail $? "managed to enslave port to lag when should not"
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# This might generate a trace, if we did not handle the failure
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# correctly
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ip -6 address add 2001:db8:1::1/64 dev $swp1
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ip -6 address del 2001:db8:1::1/64 dev $swp1
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log_test "lag with bridge upper"
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ip link del dev br0
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ip link del dev bond1
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}
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duplicate_vlans_test()
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{
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# Test that on a given port a VLAN is only used once. Either as VLAN
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# in a VLAN-aware bridge or as a VLAN device
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RET=0
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ip link add name br0 type bridge vlan_filtering 1
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ip link set dev $swp1 master br0
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bridge vlan add vid 10 dev $swp1
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ip link add link $swp1 name $swp1.10 type vlan id 10 &> /dev/null
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check_fail $? "managed to create vlan device when should not"
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bridge vlan del vid 10 dev $swp1
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ip link add link $swp1 name $swp1.10 type vlan id 10
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check_err $? "did not manage to create vlan device when should"
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bridge vlan add vid 10 dev $swp1 &> /dev/null
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check_fail $? "managed to add bridge vlan when should not"
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log_test "duplicate vlans"
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ip link del dev $swp1.10
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ip link del dev br0
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}
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vlan_rif_refcount_test()
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{
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# Test that RIFs representing VLAN interfaces are not affected from
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# ports member in the VLAN. We use the offload indication on routes
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# configured on the RIF to understand if it was created / destroyed
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RET=0
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ip link add name br0 type bridge vlan_filtering 1
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ip link set dev $swp1 master br0
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ip link set dev $swp1 up
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ip link set dev br0 up
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ip link add link br0 name br0.10 up type vlan id 10
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ip -6 address add 2001:db8:1::1/64 dev br0.10
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ip -6 route get fibmatch 2001:db8:1::2 dev br0.10 | grep -q offload
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check_err $? "vlan rif was not created before adding port to vlan"
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bridge vlan add vid 10 dev $swp1
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ip -6 route get fibmatch 2001:db8:1::2 dev br0.10 | grep -q offload
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check_err $? "vlan rif was destroyed after adding port to vlan"
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bridge vlan del vid 10 dev $swp1
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ip -6 route get fibmatch 2001:db8:1::2 dev br0.10 | grep -q offload
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check_err $? "vlan rif was destroyed after removing port from vlan"
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ip link set dev $swp1 nomaster
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ip -6 route get fibmatch 2001:db8:1::2 dev br0.10 | grep -q offload
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check_fail $? "vlan rif was not destroyed after unlinking port from bridge"
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log_test "vlan rif refcount"
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ip link del dev br0.10
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ip link set dev $swp1 down
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ip link del dev br0
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}
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subport_rif_refcount_test()
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{
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# Test that RIFs representing upper devices of physical ports are
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# reference counted correctly and destroyed when should. We use the
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# offload indication on routes configured on the RIF to understand if
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# it was created / destroyed
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RET=0
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ip link add name bond1 type bond mode 802.3ad
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ip link set dev $swp1 down
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ip link set dev $swp2 down
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ip link set dev $swp1 master bond1
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ip link set dev $swp2 master bond1
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ip link set dev bond1 up
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ip link add link bond1 name bond1.10 up type vlan id 10
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ip -6 address add 2001:db8:1::1/64 dev bond1
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ip -6 address add 2001:db8:2::1/64 dev bond1.10
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ip -6 route get fibmatch 2001:db8:1::2 dev bond1 | grep -q offload
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check_err $? "subport rif was not created on lag device"
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ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10 | grep -q offload
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check_err $? "subport rif was not created on vlan device"
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ip link set dev $swp1 nomaster
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ip -6 route get fibmatch 2001:db8:1::2 dev bond1 | grep -q offload
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check_err $? "subport rif of lag device was destroyed when should not"
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ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10 | grep -q offload
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check_err $? "subport rif of vlan device was destroyed when should not"
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ip link set dev $swp2 nomaster
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ip -6 route get fibmatch 2001:db8:1::2 dev bond1 | grep -q offload
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check_fail $? "subport rif of lag device was not destroyed when should"
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ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10 | grep -q offload
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check_fail $? "subport rif of vlan device was not destroyed when should"
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log_test "subport rif refcount"
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ip link del dev bond1.10
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ip link del dev bond1
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}
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vlan_dev_deletion_test()
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{
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# Test that VLAN devices are correctly deleted / unlinked when enslaved
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# to bridge
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RET=0
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ip link add name br10 type bridge
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ip link add name br20 type bridge
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ip link add name br30 type bridge
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ip link add link $swp1 name $swp1.10 type vlan id 10
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ip link add link $swp1 name $swp1.20 type vlan id 20
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ip link add link $swp1 name $swp1.30 type vlan id 30
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ip link set dev $swp1.10 master br10
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ip link set dev $swp1.20 master br20
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ip link set dev $swp1.30 master br30
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# If we did not handle the situation correctly, then these operations
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# might produce a trace
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ip link set dev $swp1.30 nomaster
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ip link del dev $swp1.20
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# Deletion via ioctl uses different code paths from netlink
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vconfig rem $swp1.10 &> /dev/null
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log_test "vlan device deletion"
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ip link del dev $swp1.30
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ip link del dev br30
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ip link del dev br20
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ip link del dev br10
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}
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lag_create()
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{
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ip link add name bond1 type bond mode 802.3ad
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ip link set dev $swp1 down
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ip link set dev $swp2 down
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ip link set dev $swp1 master bond1
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ip link set dev $swp2 master bond1
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ip link add link bond1 name bond1.10 type vlan id 10
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ip link add link bond1 name bond1.20 type vlan id 20
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ip link add name br0 type bridge vlan_filtering 1
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ip link set dev bond1 master br0
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ip link add name br10 type bridge
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ip link set dev bond1.10 master br10
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ip link add name br20 type bridge
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ip link set dev bond1.20 master br20
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}
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lag_unlink_slaves_test()
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{
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# Test that ports are correctly unlinked from their LAG master, when
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# the LAG and its VLAN uppers are enslaved to bridges
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RET=0
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lag_create
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ip link set dev $swp1 nomaster
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check_err $? "lag slave $swp1 was not unlinked from master"
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ip link set dev $swp2 nomaster
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check_err $? "lag slave $swp2 was not unlinked from master"
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# Try to configure corresponding VLANs as router interfaces
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ip -6 address add 2001:db8:1::1/64 dev $swp1
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check_err $? "failed to configure ip address on $swp1"
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ip link add link $swp1 name $swp1.10 type vlan id 10
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ip -6 address add 2001:db8:10::1/64 dev $swp1.10
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check_err $? "failed to configure ip address on $swp1.10"
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ip link add link $swp1 name $swp1.20 type vlan id 20
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ip -6 address add 2001:db8:20::1/64 dev $swp1.20
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check_err $? "failed to configure ip address on $swp1.20"
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log_test "lag slaves unlinking"
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ip link del dev $swp1.20
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ip link del dev $swp1.10
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ip address flush dev $swp1
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ip link del dev br20
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ip link del dev br10
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ip link del dev br0
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ip link del dev bond1
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}
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lag_dev_deletion_test()
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{
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# Test that LAG device is correctly deleted, when the LAG and its VLAN
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# uppers are enslaved to bridges
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RET=0
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lag_create
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ip link del dev bond1
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log_test "lag device deletion"
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ip link del dev br20
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ip link del dev br10
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ip link del dev br0
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}
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vlan_interface_uppers_test()
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{
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# Test that uppers of a VLAN interface are correctly sanitized
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RET=0
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ip link add name br0 type bridge vlan_filtering 1
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ip link set dev $swp1 master br0
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ip link add link br0 name br0.10 type vlan id 10
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ip link add link br0.10 name macvlan0 \
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type macvlan mode private &> /dev/null
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check_fail $? "managed to create a macvlan when should not"
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ip -6 address add 2001:db8:1::1/64 dev br0.10
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ip link add link br0.10 name macvlan0 type macvlan mode private
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check_err $? "did not manage to create a macvlan when should"
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ip link del dev macvlan0
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ip link add name vrf-test type vrf table 10
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ip link set dev br0.10 master vrf-test
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check_err $? "did not manage to enslave vlan interface to vrf"
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ip link del dev vrf-test
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ip link add name br-test type bridge
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ip link set dev br0.10 master br-test &> /dev/null
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check_fail $? "managed to enslave vlan interface to bridge when should not"
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ip link del dev br-test
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log_test "vlan interface uppers"
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ip link del dev br0
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}
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devlink_reload_test()
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{
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# Test that after executing all the above configuration tests, a
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# devlink reload can be performed without errors
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RET=0
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devlink dev reload "$DEVLINK_DEV"
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check_err $? "devlink reload failed"
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log_test "devlink reload - last test"
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sleep 20
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}
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trap cleanup EXIT
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setup_prepare
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