selftests: mlxsw: Add test cases for local table route replacement

Test that routes in the main table do not replace identical routes in
the local table and that routes in the local table do replace identical
routes in the main table.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/testing/selftests/drivers/net/mlxsw/fib.sh b/tools/testing/selftests/drivers/net/mlxsw/fib.sh
index 45115f81c2b133dffd92e6090dc2da1a8d375518..eab79b9e58cdf184af89d98bc182cf15cca58efc 100755 (executable)
--- a/tools/testing/selftests/drivers/net/mlxsw/fib.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/fib.sh
@@ -14,6 +14,7 @@ ALL_TESTS="
        ipv4_plen
        ipv4_replay
        ipv4_flush
+       ipv4_local_replace
        ipv6_add
        ipv6_metric
        ipv6_append_single
@@ -26,6 +27,7 @@ ALL_TESTS="
        ipv6_delete_multipath
        ipv6_replay_single
        ipv6_replay_multipath
+       ipv6_local_replace
 "
 NUM_NETIFS=0
 source $lib_dir/lib.sh
@@ -89,6 +91,43 @@ ipv4_flush()
        fib_ipv4_flush_test "testns1"
 }
 
+ipv4_local_replace()
+{
+       local ns="testns1"
+
+       RET=0
+
+       ip -n $ns link add name dummy1 type dummy
+       ip -n $ns link set dev dummy1 up
+
+       ip -n $ns route add table local 192.0.2.1/32 dev dummy1
+       fib4_trap_check $ns "table local 192.0.2.1/32 dev dummy1" false
+       check_err $? "Local table route not in hardware when should"
+
+       ip -n $ns route add table main 192.0.2.1/32 dev dummy1
+       fib4_trap_check $ns "table main 192.0.2.1/32 dev dummy1" true
+       check_err $? "Main table route in hardware when should not"
+
+       fib4_trap_check $ns "table local 192.0.2.1/32 dev dummy1" false
+       check_err $? "Local table route was replaced when should not"
+
+       # Test that local routes can replace routes in main table.
+       ip -n $ns route add table main 192.0.2.2/32 dev dummy1
+       fib4_trap_check $ns "table main 192.0.2.2/32 dev dummy1" false
+       check_err $? "Main table route not in hardware when should"
+
+       ip -n $ns route add table local 192.0.2.2/32 dev dummy1
+       fib4_trap_check $ns "table local 192.0.2.2/32 dev dummy1" false
+       check_err $? "Local table route did not replace route in main table when should"
+
+       fib4_trap_check $ns "table main 192.0.2.2/32 dev dummy1" true
+       check_err $? "Main table route was not replaced when should"
+
+       log_test "IPv4 local table route replacement"
+
+       ip -n $ns link del dev dummy1
+}
+
 ipv6_add()
 {
        fib_ipv6_add_test "testns1"
@@ -149,6 +188,43 @@ ipv6_replay_multipath()
        fib_ipv6_replay_multipath_test "testns1" "$DEVLINK_DEV"
 }
 
+ipv6_local_replace()
+{
+       local ns="testns1"
+
+       RET=0
+
+       ip -n $ns link add name dummy1 type dummy
+       ip -n $ns link set dev dummy1 up
+
+       ip -n $ns route add table local 2001:db8:1::1/128 dev dummy1
+       fib6_trap_check $ns "table local 2001:db8:1::1/128 dev dummy1" false
+       check_err $? "Local table route not in hardware when should"
+
+       ip -n $ns route add table main 2001:db8:1::1/128 dev dummy1
+       fib6_trap_check $ns "table main 2001:db8:1::1/128 dev dummy1" true
+       check_err $? "Main table route in hardware when should not"
+
+       fib6_trap_check $ns "table local 2001:db8:1::1/128 dev dummy1" false
+       check_err $? "Local table route was replaced when should not"
+
+       # Test that local routes can replace routes in main table.
+       ip -n $ns route add table main 2001:db8:1::2/128 dev dummy1
+       fib6_trap_check $ns "table main 2001:db8:1::2/128 dev dummy1" false
+       check_err $? "Main table route not in hardware when should"
+
+       ip -n $ns route add table local 2001:db8:1::2/128 dev dummy1
+       fib6_trap_check $ns "table local 2001:db8:1::2/128 dev dummy1" false
+       check_err $? "Local route route did not replace route in main table when should"
+
+       fib6_trap_check $ns "table main 2001:db8:1::2/128 dev dummy1" true
+       check_err $? "Main table route was not replaced when should"
+
+       log_test "IPv6 local table route replacement"
+
+       ip -n $ns link del dev dummy1
+}
+
 setup_prepare()
 {
        ip netns add testns1