selftests: mlxsw: Add nexthop objects configuration tests

Test that unsupported nexthop objects are rejected and that offload
indication is correctly set on: nexthop objects, nexthop group objects
and routes associated these objects.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/tools/testing/selftests/drivers/net/mlxsw/rtnetlink.sh b/tools/testing/selftests/drivers/net/mlxsw/rtnetlink.sh
index f403100..5de47d7 100755 (executable)
--- a/tools/testing/selftests/drivers/net/mlxsw/rtnetlink.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/rtnetlink.sh
@@ -29,6 +29,10 @@ ALL_TESTS="
        bridge_extern_learn_test
        neigh_offload_test
        nexthop_offload_test
+       nexthop_obj_invalid_test
+       nexthop_obj_offload_test
+       nexthop_obj_group_offload_test
+       nexthop_obj_route_offload_test
        devlink_reload_test
 "
 NUM_NETIFS=2
@@ -674,6 +678,191 @@ nexthop_offload_test()
        sysctl_restore net.ipv6.conf.$swp2.keep_addr_on_down
 }
 
+nexthop_obj_invalid_test()
+{
+       # Test that invalid nexthop object configurations are rejected
+       RET=0
+
+       simple_if_init $swp1 192.0.2.1/24 2001:db8:1::1/64
+       simple_if_init $swp2 192.0.2.2/24 2001:db8:1::2/64
+       setup_wait
+
+       ip nexthop add id 1 via 192.0.2.3 fdb
+       check_fail $? "managed to configure an FDB nexthop when should not"
+
+       ip nexthop add id 1 encap mpls 200/300 via 192.0.2.3 dev $swp1
+       check_fail $? "managed to configure a nexthop with MPLS encap when should not"
+
+       ip nexthop add id 1 blackhole
+       check_fail $? "managed to configure a blackhole nexthop when should not"
+
+       ip nexthop add id 1 dev $swp1
+       ip nexthop add id 2 dev $swp1
+       ip nexthop add id 10 group 1/2
+       check_fail $? "managed to configure a nexthop group with device-only nexthops when should not"
+
+       log_test "nexthop objects - invalid configurations"
+
+       ip nexthop del id 2
+       ip nexthop del id 1
+
+       simple_if_fini $swp2 192.0.2.2/24 2001:db8:1::2/64
+       simple_if_fini $swp1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+nexthop_obj_offload_test()
+{
+       # Test offload indication of nexthop objects
+       RET=0
+
+       simple_if_init $swp1 192.0.2.1/24 2001:db8:1::1/64
+       simple_if_init $swp2
+       setup_wait
+
+       ip nexthop add id 1 via 192.0.2.2 dev $swp1
+       ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud reachable \
+               dev $swp1
+
+       busywait "$TIMEOUT" wait_for_offload \
+               ip nexthop show id 1
+       check_err $? "nexthop not marked as offloaded when should"
+
+       ip neigh replace 192.0.2.2 nud failed dev $swp1
+       busywait "$TIMEOUT" not wait_for_offload \
+               ip nexthop show id 1
+       check_err $? "nexthop marked as offloaded after setting neigh to failed state"
+
+       ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud reachable \
+               dev $swp1
+       busywait "$TIMEOUT" wait_for_offload \
+               ip nexthop show id 1
+       check_err $? "nexthop not marked as offloaded after neigh replace"
+
+       ip nexthop replace id 1 via 192.0.2.3 dev $swp1
+       busywait "$TIMEOUT" not wait_for_offload \
+               ip nexthop show id 1
+       check_err $? "nexthop marked as offloaded after replacing to use an invalid address"
+
+       ip nexthop replace id 1 via 192.0.2.2 dev $swp1
+       busywait "$TIMEOUT" wait_for_offload \
+               ip nexthop show id 1
+       check_err $? "nexthop not marked as offloaded after replacing to use a valid address"
+
+       log_test "nexthop objects offload indication"
+
+       ip neigh del 192.0.2.2 dev $swp1
+       ip nexthop del id 1
+
+       simple_if_fini $swp2
+       simple_if_fini $swp1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+nexthop_obj_group_offload_test()
+{
+       # Test offload indication of nexthop group objects
+       RET=0
+
+       simple_if_init $swp1 192.0.2.1/24 2001:db8:1::1/64
+       simple_if_init $swp2
+       setup_wait
+
+       ip nexthop add id 1 via 192.0.2.2 dev $swp1
+       ip nexthop add id 2 via 2001:db8:1::2 dev $swp1
+       ip nexthop add id 10 group 1/2
+       ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud reachable \
+               dev $swp1
+       ip neigh replace 192.0.2.3 lladdr 00:11:22:33:44:55 nud reachable \
+               dev $swp1
+       ip neigh replace 2001:db8:1::2 lladdr 00:11:22:33:44:55 nud reachable \
+               dev $swp1
+
+       busywait "$TIMEOUT" wait_for_offload \
+               ip nexthop show id 1
+       check_err $? "IPv4 nexthop not marked as offloaded when should"
+       busywait "$TIMEOUT" wait_for_offload \
+               ip nexthop show id 2
+       check_err $? "IPv6 nexthop not marked as offloaded when should"
+       busywait "$TIMEOUT" wait_for_offload \
+               ip nexthop show id 10
+       check_err $? "nexthop group not marked as offloaded when should"
+
+       # Invalidate nexthop id 1
+       ip neigh replace 192.0.2.2 nud failed dev $swp1
+       busywait "$TIMEOUT" not wait_for_offload \
+               ip nexthop show id 10
+       check_fail $? "nexthop group not marked as offloaded with one valid nexthop"
+
+       # Invalidate nexthop id 2
+       ip neigh replace 2001:db8:1::2 nud failed dev $swp1
+       busywait "$TIMEOUT" not wait_for_offload \
+               ip nexthop show id 10
+       check_err $? "nexthop group marked as offloaded when should not"
+
+       # Revalidate nexthop id 1
+       ip nexthop replace id 1 via 192.0.2.3 dev $swp1
+       busywait "$TIMEOUT" wait_for_offload \
+               ip nexthop show id 10
+       check_err $? "nexthop group not marked as offloaded after revalidating nexthop"
+
+       log_test "nexthop group objects offload indication"
+
+       ip neigh del 2001:db8:1::2 dev $swp1
+       ip neigh del 192.0.2.3 dev $swp1
+       ip neigh del 192.0.2.2 dev $swp1
+       ip nexthop del id 10
+       ip nexthop del id 2
+       ip nexthop del id 1
+
+       simple_if_fini $swp2
+       simple_if_fini $swp1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+nexthop_obj_route_offload_test()
+{
+       # Test offload indication of routes using nexthop objects
+       RET=0
+
+       simple_if_init $swp1 192.0.2.1/24 2001:db8:1::1/64
+       simple_if_init $swp2
+       setup_wait
+
+       ip nexthop add id 1 via 192.0.2.2 dev $swp1
+       ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud reachable \
+               dev $swp1
+       ip neigh replace 192.0.2.3 lladdr 00:11:22:33:44:55 nud reachable \
+               dev $swp1
+
+       ip route replace 198.51.100.0/24 nhid 1
+       busywait "$TIMEOUT" wait_for_offload \
+               ip route show 198.51.100.0/24
+       check_err $? "route not marked as offloaded when using valid nexthop"
+
+       ip nexthop replace id 1 via 192.0.2.3 dev $swp1
+       busywait "$TIMEOUT" wait_for_offload \
+               ip route show 198.51.100.0/24
+       check_err $? "route not marked as offloaded after replacing valid nexthop with a valid one"
+
+       ip nexthop replace id 1 via 192.0.2.4 dev $swp1
+       busywait "$TIMEOUT" not wait_for_offload \
+               ip route show 198.51.100.0/24
+       check_err $? "route marked as offloaded after replacing valid nexthop with an invalid one"
+
+       ip nexthop replace id 1 via 192.0.2.2 dev $swp1
+       busywait "$TIMEOUT" wait_for_offload \
+               ip route show 198.51.100.0/24
+       check_err $? "route not marked as offloaded after replacing invalid nexthop with a valid one"
+
+       log_test "routes using nexthop objects offload indication"
+
+       ip route del 198.51.100.0/24
+       ip neigh del 192.0.2.3 dev $swp1
+       ip neigh del 192.0.2.2 dev $swp1
+       ip nexthop del id 1
+
+       simple_if_fini $swp2
+       simple_if_fini $swp1 192.0.2.1/24 2001:db8:1::1/64
+}
+
 devlink_reload_test()
 {
        # Test that after executing all the above configuration tests, a