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* [PATCH net-next 0/8] mlxsw: Add tests for VxLAN with IPv6 underlay
@ 2021-12-23  7:29 Amit Cohen
  2021-12-23  7:29 ` [PATCH net-next 1/8] selftests: mlxsw: vxlan: Make the test more flexible for future use Amit Cohen
                   ` (8 more replies)
  0 siblings, 9 replies; 10+ messages in thread
From: Amit Cohen @ 2021-12-23  7:29 UTC (permalink / raw)
  To: netdev; +Cc: davem, kuba, mlxsw, idosch, Amit Cohen

mlxsw driver lately added support for VxLAN with IPv6 underlay.
This set adds tests for IPv6, which are dedicated for mlxsw.

Patch set overview:
Patches #1-#2 make vxlan.sh test more flexible and extend it for IPv6
Patches #3-#4 make vxlan_fdb_veto.sh test more flexible and extend it
for IPv6
Patches #5-#6 add tests for VxLAN flooding for different ASICs
Patches #7-#8 add test for VxLAN related traps and align the existing
test

Amit Cohen (8):
  selftests: mlxsw: vxlan: Make the test more flexible for future use
  selftests: mlxsw: Add VxLAN configuration test for IPv6
  selftests: mlxsw: vxlan_fdb_veto: Make the test more flexible for
    future use
  selftests: mlxsw: Add VxLAN FDB veto test for IPv6
  selftests: mlxsw: spectrum: Add a test for VxLAN flooding with IPv6
  selftests: mlxsw: spectrum-2: Add a test for VxLAN flooding with IPv6
  selftests: mlxsw: Add test for VxLAN related traps for IPv6
  selftests: mlxsw: devlink_trap_tunnel_vxlan: Fix 'decap_error' case

 .../net/mlxsw/devlink_trap_tunnel_vxlan.sh    |   7 +-
 .../mlxsw/devlink_trap_tunnel_vxlan_ipv6.sh   | 342 ++++++++++++++++++
 .../mlxsw/spectrum-2/vxlan_flooding_ipv6.sh   | 322 +++++++++++++++++
 .../net/mlxsw/spectrum/vxlan_flooding_ipv6.sh | 334 +++++++++++++++++
 .../selftests/drivers/net/mlxsw/vxlan.sh      | 224 +++++++-----
 .../drivers/net/mlxsw/vxlan_fdb_veto.sh       |  39 +-
 .../drivers/net/mlxsw/vxlan_fdb_veto_ipv6.sh  |  12 +
 .../selftests/drivers/net/mlxsw/vxlan_ipv6.sh |  65 ++++
 8 files changed, 1232 insertions(+), 113 deletions(-)
 create mode 100755 tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan_ipv6.sh
 create mode 100755 tools/testing/selftests/drivers/net/mlxsw/spectrum-2/vxlan_flooding_ipv6.sh
 create mode 100755 tools/testing/selftests/drivers/net/mlxsw/spectrum/vxlan_flooding_ipv6.sh
 create mode 100755 tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto_ipv6.sh
 create mode 100755 tools/testing/selftests/drivers/net/mlxsw/vxlan_ipv6.sh

-- 
2.31.1


^ permalink raw reply	[flat|nested] 10+ messages in thread
* [PATCH net-next 1/8] selftests: mlxsw: vxlan: Make the test more flexible for future use
  2021-12-23  7:29 [PATCH net-next 0/8] mlxsw: Add tests for VxLAN with IPv6 underlay Amit Cohen
@ 2021-12-23  7:29 ` Amit Cohen
  2021-12-23  7:29 ` [PATCH net-next 2/8] selftests: mlxsw: Add VxLAN configuration test for IPv6 Amit Cohen
                   ` (7 subsequent siblings)
  8 siblings, 0 replies; 10+ messages in thread
From: Amit Cohen @ 2021-12-23  7:29 UTC (permalink / raw)
  To: netdev; +Cc: davem, kuba, mlxsw, idosch, Amit Cohen, Petr Machata

vxlan.sh cases are dedicated to test VxLAN with IPv4 underlay.
The main changes to test IPv6 underlay are IP addresses and some flags.

Add variables to define all the values which supposed to be different
for IPv6 testing, set them to use the existing values by default.

The next patch will define the new added variables in a separated file,
so the same tests can be used for IPv6 also.

Rename some functions to include "ipv4", so the next patch will add
equivalent functions for IPv6.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
---
 .../selftests/drivers/net/mlxsw/vxlan.sh      | 224 ++++++++++--------
 1 file changed, 125 insertions(+), 99 deletions(-)

diff --git a/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh b/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh
index 3639b89c81ba..99a332b712f0 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh
@@ -4,10 +4,35 @@
 # Test various aspects of VxLAN offloading which are specific to mlxsw, such
 # as sanitization of invalid configurations and offload indication.
 
-lib_dir=$(dirname $0)/../../../net/forwarding
+: ${ADDR_FAMILY:=ipv4}
+export ADDR_FAMILY
+
+: ${LOCAL_IP_1:=198.51.100.1}
+export LOCAL_IP_1
+
+: ${LOCAL_IP_2:=198.51.100.2}
+export LOCAL_IP_2
+
+: ${PREFIX_LEN:=32}
+export PREFIX_LEN
+
+: ${UDPCSUM_FLAFS:=noudpcsum}
+export UDPCSUM_FLAFS
 
-ALL_TESTS="sanitization_test offload_indication_test \
-	sanitization_vlan_aware_test offload_indication_vlan_aware_test"
+: ${MC_IP:=239.0.0.1}
+export MC_IP
+
+: ${IP_FLAG:=""}
+export IP_FLAG
+
+: ${ALL_TESTS:="
+	sanitization_test
+	offload_indication_test
+	sanitization_vlan_aware_test
+	offload_indication_vlan_aware_test
+"}
+
+lib_dir=$(dirname $0)/../../../net/forwarding
 NUM_NETIFS=2
 : ${TIMEOUT:=20000} # ms
 source $lib_dir/lib.sh
@@ -63,8 +88,8 @@ sanitization_single_dev_valid_test()
 
 	ip link add dev br0 type bridge mcast_snooping 0
 
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 
 	sanitization_single_dev_test_pass
 
@@ -80,8 +105,8 @@ sanitization_single_dev_vlan_aware_test()
 
 	ip link add dev br0 type bridge mcast_snooping 0 vlan_filtering 1
 
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 
 	sanitization_single_dev_test_pass
 
@@ -97,8 +122,8 @@ sanitization_single_dev_mcast_enabled_test()
 
 	ip link add dev br0 type bridge
 
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 
 	sanitization_single_dev_test_fail
 
@@ -115,9 +140,9 @@ sanitization_single_dev_mcast_group_test()
 	ip link add dev br0 type bridge mcast_snooping 0
 	ip link add name dummy1 up type dummy
 
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789 \
-		dev dummy1 group 239.0.0.1
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789 \
+		dev dummy1 group $MC_IP
 
 	sanitization_single_dev_test_fail
 
@@ -134,7 +159,7 @@ sanitization_single_dev_no_local_ip_test()
 
 	ip link add dev br0 type bridge mcast_snooping 0
 
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
 		ttl 20 tos inherit dstport 4789
 
 	sanitization_single_dev_test_fail
@@ -145,14 +170,14 @@ sanitization_single_dev_no_local_ip_test()
 	log_test "vxlan device with no local ip"
 }
 
-sanitization_single_dev_learning_enabled_test()
+sanitization_single_dev_learning_enabled_ipv4_test()
 {
 	RET=0
 
 	ip link add dev br0 type bridge mcast_snooping 0
 
-	ip link add name vxlan0 up type vxlan id 10 learning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789
+	ip link add name vxlan0 up type vxlan id 10 learning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 
 	sanitization_single_dev_test_pass
 
@@ -169,8 +194,8 @@ sanitization_single_dev_local_interface_test()
 	ip link add dev br0 type bridge mcast_snooping 0
 	ip link add name dummy1 up type dummy
 
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789 dev dummy1
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789 dev dummy1
 
 	sanitization_single_dev_test_fail
 
@@ -187,8 +212,8 @@ sanitization_single_dev_port_range_test()
 
 	ip link add dev br0 type bridge mcast_snooping 0
 
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789 \
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789 \
 		srcport 4000 5000
 
 	sanitization_single_dev_test_fail
@@ -205,8 +230,8 @@ sanitization_single_dev_tos_static_test()
 
 	ip link add dev br0 type bridge mcast_snooping 0
 
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl 20 tos 20 local 198.51.100.1 dstport 4789
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos 20 local $LOCAL_IP_1 dstport 4789
 
 	sanitization_single_dev_test_fail
 
@@ -222,8 +247,8 @@ sanitization_single_dev_ttl_inherit_test()
 
 	ip link add dev br0 type bridge mcast_snooping 0
 
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl inherit tos inherit local 198.51.100.1 dstport 4789
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl inherit tos inherit local $LOCAL_IP_1 dstport 4789
 
 	sanitization_single_dev_test_fail
 
@@ -233,14 +258,14 @@ sanitization_single_dev_ttl_inherit_test()
 	log_test "vxlan device with inherit ttl"
 }
 
-sanitization_single_dev_udp_checksum_test()
+sanitization_single_dev_udp_checksum_ipv4_test()
 {
 	RET=0
 
 	ip link add dev br0 type bridge mcast_snooping 0
 
 	ip link add name vxlan0 up type vxlan id 10 nolearning udpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 
 	sanitization_single_dev_test_fail
 
@@ -259,12 +284,12 @@ sanitization_single_dev_test()
 	sanitization_single_dev_mcast_enabled_test
 	sanitization_single_dev_mcast_group_test
 	sanitization_single_dev_no_local_ip_test
-	sanitization_single_dev_learning_enabled_test
+	sanitization_single_dev_learning_enabled_"$ADDR_FAMILY"_test
 	sanitization_single_dev_local_interface_test
 	sanitization_single_dev_port_range_test
 	sanitization_single_dev_tos_static_test
 	sanitization_single_dev_ttl_inherit_test
-	sanitization_single_dev_udp_checksum_test
+	sanitization_single_dev_udp_checksum_"$ADDR_FAMILY"_test
 }
 
 sanitization_multi_devs_test_pass()
@@ -316,10 +341,10 @@ sanitization_multi_devs_valid_test()
 	ip link add dev br0 type bridge mcast_snooping 0
 	ip link add dev br1 type bridge mcast_snooping 0
 
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789
-	ip link add name vxlan1 up type vxlan id 20 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+	ip link add name vxlan1 up type vxlan id 20 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 
 	sanitization_multi_devs_test_pass
 
@@ -338,10 +363,10 @@ sanitization_multi_devs_ttl_test()
 	ip link add dev br0 type bridge mcast_snooping 0
 	ip link add dev br1 type bridge mcast_snooping 0
 
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789
-	ip link add name vxlan1 up type vxlan id 20 nolearning noudpcsum \
-		ttl 40 tos inherit local 198.51.100.1 dstport 4789
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+	ip link add name vxlan1 up type vxlan id 20 nolearning $UDPCSUM_FLAFS \
+		ttl 40 tos inherit local $LOCAL_IP_1 dstport 4789
 
 	sanitization_multi_devs_test_fail
 
@@ -360,10 +385,10 @@ sanitization_multi_devs_udp_dstport_test()
 	ip link add dev br0 type bridge mcast_snooping 0
 	ip link add dev br1 type bridge mcast_snooping 0
 
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789
-	ip link add name vxlan1 up type vxlan id 20 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 5789
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+	ip link add name vxlan1 up type vxlan id 20 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 5789
 
 	sanitization_multi_devs_test_fail
 
@@ -382,10 +407,10 @@ sanitization_multi_devs_local_ip_test()
 	ip link add dev br0 type bridge mcast_snooping 0
 	ip link add dev br1 type bridge mcast_snooping 0
 
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789
-	ip link add name vxlan1 up type vxlan id 20 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.2 dstport 4789
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+	ip link add name vxlan1 up type vxlan id 20 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_2 dstport 4789
 
 	sanitization_multi_devs_test_fail
 
@@ -425,12 +450,12 @@ offload_indication_setup_create()
 	ip link set dev $swp1 master br0
 	ip link set dev $swp2 master br1
 
-	ip address add 198.51.100.1/32 dev lo
+	ip address add $LOCAL_IP_1/$PREFIX_LEN dev lo
 
 	ip link add name vxlan0 up master br0 type vxlan id 10 nolearning \
-		noudpcsum ttl 20 tos inherit local 198.51.100.1 dstport 4789
+		$UDPCSUM_FLAFS ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 	ip link add name vxlan1 up master br1 type vxlan id 20 nolearning \
-		noudpcsum ttl 20 tos inherit local 198.51.100.1 dstport 4789
+		$UDPCSUM_FLAFS ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 }
 
 offload_indication_setup_destroy()
@@ -438,7 +463,7 @@ offload_indication_setup_destroy()
 	ip link del dev vxlan1
 	ip link del dev vxlan0
 
-	ip address del 198.51.100.1/32 dev lo
+	ip address del $LOCAL_IP_1/$PREFIX_LEN dev lo
 
 	ip link set dev $swp2 nomaster
 	ip link set dev $swp1 nomaster
@@ -451,7 +476,7 @@ offload_indication_fdb_flood_test()
 {
 	RET=0
 
-	bridge fdb append 00:00:00:00:00:00 dev vxlan0 self dst 198.51.100.2
+	bridge fdb append 00:00:00:00:00:00 dev vxlan0 self dst $LOCAL_IP_2
 
 	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb 00:00:00:00:00:00 \
 		bridge fdb show brport vxlan0
@@ -467,7 +492,7 @@ offload_indication_fdb_bridge_test()
 	RET=0
 
 	bridge fdb add de:ad:be:ef:13:37 dev vxlan0 self master static \
-		dst 198.51.100.2
+		dst $LOCAL_IP_2
 
 	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb \
 		de:ad:be:ef:13:37 self bridge fdb show brport vxlan0
@@ -518,7 +543,7 @@ offload_indication_fdb_bridge_test()
 	# marked as offloaded in both drivers
 	RET=0
 
-	bridge fdb add de:ad:be:ef:13:37 dev vxlan0 self dst 198.51.100.2
+	bridge fdb add de:ad:be:ef:13:37 dev vxlan0 self dst $LOCAL_IP_2
 	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb \
 		de:ad:be:ef:13:37 self bridge fdb show brport vxlan0
 	check_err $?
@@ -542,17 +567,17 @@ offload_indication_decap_route_test()
 	RET=0
 
 	busywait "$TIMEOUT" wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	ip link set dev vxlan0 down
 	busywait "$TIMEOUT" wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	ip link set dev vxlan1 down
 	busywait "$TIMEOUT" not wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	log_test "vxlan decap route - vxlan device down"
@@ -561,26 +586,26 @@ offload_indication_decap_route_test()
 
 	ip link set dev vxlan1 up
 	busywait "$TIMEOUT" wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	ip link set dev vxlan0 up
 	busywait "$TIMEOUT" wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	log_test "vxlan decap route - vxlan device up"
 
 	RET=0
 
-	ip address delete 198.51.100.1/32 dev lo
+	ip address delete $LOCAL_IP_1/$PREFIX_LEN dev lo
 	busywait "$TIMEOUT" not wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
-	ip address add 198.51.100.1/32 dev lo
+	ip address add $LOCAL_IP_1/$PREFIX_LEN dev lo
 	busywait "$TIMEOUT" wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	log_test "vxlan decap route - add local route"
@@ -589,18 +614,18 @@ offload_indication_decap_route_test()
 
 	ip link set dev $swp1 nomaster
 	busywait "$TIMEOUT" wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	ip link set dev $swp2 nomaster
 	busywait "$TIMEOUT" not wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	ip link set dev $swp1 master br0
 	ip link set dev $swp2 master br1
 	busywait "$TIMEOUT" wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	log_test "vxlan decap route - local ports enslavement"
@@ -609,12 +634,12 @@ offload_indication_decap_route_test()
 
 	ip link del dev br0
 	busywait "$TIMEOUT" wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	ip link del dev br1
 	busywait "$TIMEOUT" not wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	log_test "vxlan decap route - bridge device deletion"
@@ -628,25 +653,25 @@ offload_indication_decap_route_test()
 	ip link set dev vxlan0 master br0
 	ip link set dev vxlan1 master br1
 	busywait "$TIMEOUT" wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	ip link del dev vxlan0
 	busywait "$TIMEOUT" wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	ip link del dev vxlan1
 	busywait "$TIMEOUT" not wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	log_test "vxlan decap route - vxlan device deletion"
 
 	ip link add name vxlan0 up master br0 type vxlan id 10 nolearning \
-		noudpcsum ttl 20 tos inherit local 198.51.100.1 dstport 4789
+		$UDPCSUM_FLAFS ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 	ip link add name vxlan1 up master br1 type vxlan id 20 nolearning \
-		noudpcsum ttl 20 tos inherit local 198.51.100.1 dstport 4789
+		$UDPCSUM_FLAFS ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 }
 
 check_fdb_offloaded()
@@ -703,10 +728,10 @@ __offload_indication_join_vxlan_first()
 	local mac=00:11:22:33:44:55
 	local zmac=00:00:00:00:00:00
 
-	bridge fdb append $zmac dev vxlan0 self dst 198.51.100.2
+	bridge fdb append $zmac dev vxlan0 self dst $LOCAL_IP_2
 
 	ip link set dev vxlan0 master br0
-	bridge fdb add dev vxlan0 $mac self master static dst 198.51.100.2
+	bridge fdb add dev vxlan0 $mac self master static dst $LOCAL_IP_2
 
 	RET=0
 	check_vxlan_fdb_not_offloaded
@@ -756,8 +781,8 @@ __offload_indication_join_vxlan_first()
 offload_indication_join_vxlan_first()
 {
 	ip link add dev br0 up type bridge mcast_snooping 0
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 
 	__offload_indication_join_vxlan_first
 
@@ -771,7 +796,7 @@ __offload_indication_join_vxlan_last()
 
 	RET=0
 
-	bridge fdb append $zmac dev vxlan0 self dst 198.51.100.2
+	bridge fdb append $zmac dev vxlan0 self dst $LOCAL_IP_2
 
 	ip link set dev $swp1 master br0
 
@@ -791,8 +816,8 @@ __offload_indication_join_vxlan_last()
 offload_indication_join_vxlan_last()
 {
 	ip link add dev br0 up type bridge mcast_snooping 0
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 
 	__offload_indication_join_vxlan_last
 
@@ -819,10 +844,10 @@ sanitization_vlan_aware_test()
 	ip link add dev br0 type bridge mcast_snooping 0 vlan_filtering 1
 
 	ip link add name vxlan10 up master br0 type vxlan id 10 nolearning \
-		noudpcsum ttl 20 tos inherit local 198.51.100.1 dstport 4789
+		$UDPCSUM_FLAFS ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 
 	ip link add name vxlan20 up master br0 type vxlan id 20 nolearning \
-		noudpcsum ttl 20 tos inherit local 198.51.100.1 dstport 4789
+		$UDPCSUM_FLAFS ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 
 	# Test that when each VNI is mapped to a different VLAN we can enslave
 	# a port to the bridge
@@ -866,20 +891,20 @@ sanitization_vlan_aware_test()
 
 	# Use the offload indication of the local route to ensure the VXLAN
 	# configuration was correctly rollbacked.
-	ip address add 198.51.100.1/32 dev lo
+	ip address add $LOCAL_IP_1/$PREFIX_LEN dev lo
 
 	ip link set dev vxlan10 type vxlan ttl 10
 	ip link set dev $swp1 master br0 &> /dev/null
 	check_fail $?
 
 	busywait "$TIMEOUT" not wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	log_test "vlan-aware - failed enslavement to bridge due to conflict"
 
 	ip link set dev vxlan10 type vxlan ttl 20
-	ip address del 198.51.100.1/32 dev lo
+	ip address del $LOCAL_IP_1/$PREFIX_LEN dev lo
 
 	ip link del dev vxlan20
 	ip link del dev vxlan10
@@ -898,12 +923,12 @@ offload_indication_vlan_aware_setup_create()
 	bridge vlan add vid 10 dev $swp1
 	bridge vlan add vid 20 dev $swp1
 
-	ip address add 198.51.100.1/32 dev lo
+	ip address add $LOCAL_IP_1/$PREFIX_LEN dev lo
 
 	ip link add name vxlan10 up master br0 type vxlan id 10 nolearning \
-		noudpcsum ttl 20 tos inherit local 198.51.100.1 dstport 4789
+		$UDPCSUM_FLAFS ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 	ip link add name vxlan20 up master br0 type vxlan id 20 nolearning \
-		noudpcsum ttl 20 tos inherit local 198.51.100.1 dstport 4789
+		$UDPCSUM_FLAFS ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 
 	bridge vlan add vid 10 dev vxlan10 pvid untagged
 	bridge vlan add vid 20 dev vxlan20 pvid untagged
@@ -917,7 +942,7 @@ offload_indication_vlan_aware_setup_destroy()
 	ip link del dev vxlan20
 	ip link del dev vxlan10
 
-	ip address del 198.51.100.1/32 dev lo
+	ip address del $LOCAL_IP_1/$PREFIX_LEN dev lo
 
 	bridge vlan del vid 20 dev $swp1
 	bridge vlan del vid 10 dev $swp1
@@ -934,7 +959,7 @@ offload_indication_vlan_aware_fdb_test()
 	log_info "vxlan entry offload indication - vlan-aware"
 
 	bridge fdb add de:ad:be:ef:13:37 dev vxlan10 self master static \
-		dst 198.51.100.2 vlan 10
+		dst $LOCAL_IP_2 vlan 10
 
 	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb \
 		de:ad:be:ef:13:37 self bridge fdb show brport vxlan10
@@ -985,7 +1010,7 @@ offload_indication_vlan_aware_fdb_test()
 	# marked as offloaded in both drivers
 	RET=0
 
-	bridge fdb add de:ad:be:ef:13:37 dev vxlan10 self dst 198.51.100.2
+	bridge fdb add de:ad:be:ef:13:37 dev vxlan10 self dst $LOCAL_IP_2
 	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb \
 		de:ad:be:ef:13:37 self bridge fdb show brport vxlan10
 	check_err $?
@@ -1003,7 +1028,7 @@ offload_indication_vlan_aware_decap_route_test()
 	RET=0
 
 	busywait "$TIMEOUT" wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	# Toggle PVID flag on one VxLAN device and make sure route is still
@@ -1011,7 +1036,7 @@ offload_indication_vlan_aware_decap_route_test()
 	bridge vlan add vid 10 dev vxlan10 untagged
 
 	busywait "$TIMEOUT" wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	# Toggle PVID flag on second VxLAN device and make sure route is no
@@ -1019,14 +1044,15 @@ offload_indication_vlan_aware_decap_route_test()
 	bridge vlan add vid 20 dev vxlan20 untagged
 
 	busywait "$TIMEOUT" not wait_for_offload \
-		ip route show table local 198.51.100.1
+		ip $IP_FLAG route show table local $LOCAL_IP_1
 	check_err $?
 
 	# Toggle PVID flag back and make sure route is marked as offloaded
 	bridge vlan add vid 10 dev vxlan10 pvid untagged
 	bridge vlan add vid 20 dev vxlan20 pvid untagged
 
-	busywait "$TIMEOUT" wait_for_offload ip route show table local 198.51.100.1
+	busywait "$TIMEOUT" wait_for_offload ip $IP_FLAG route show table local \
+		$LOCAL_IP_1
 	check_err $?
 
 	log_test "vxlan decap route - vni map/unmap"
@@ -1036,8 +1062,8 @@ offload_indication_vlan_aware_join_vxlan_first()
 {
 	ip link add dev br0 up type bridge mcast_snooping 0 \
 		vlan_filtering 1 vlan_default_pvid 1
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 
 	__offload_indication_join_vxlan_first 1
 
@@ -1049,8 +1075,8 @@ offload_indication_vlan_aware_join_vxlan_last()
 {
 	ip link add dev br0 up type bridge mcast_snooping 0 \
 		vlan_filtering 1 vlan_default_pvid 1
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 
 	__offload_indication_join_vxlan_last
 
@@ -1067,14 +1093,14 @@ offload_indication_vlan_aware_l3vni_test()
 	sysctl_set net.ipv6.conf.default.disable_ipv6 1
 	ip link add dev br0 up type bridge mcast_snooping 0 \
 		vlan_filtering 1 vlan_default_pvid 0
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
 
 	ip link set dev $swp1 master br0
 
 	# The test will use the offload indication on the FDB entry to
 	# understand if the tunnel is offloaded or not
-	bridge fdb append $zmac dev vxlan0 self dst 192.0.2.1
+	bridge fdb append $zmac dev vxlan0 self dst $LOCAL_IP_2
 
 	ip link set dev vxlan0 master br0
 	bridge vlan add dev vxlan0 vid 10 pvid untagged
-- 
2.31.1


^ permalink raw reply related	[flat|nested] 10+ messages in thread
* [PATCH net-next 2/8] selftests: mlxsw: Add VxLAN configuration test for IPv6
  2021-12-23  7:29 [PATCH net-next 0/8] mlxsw: Add tests for VxLAN with IPv6 underlay Amit Cohen
  2021-12-23  7:29 ` [PATCH net-next 1/8] selftests: mlxsw: vxlan: Make the test more flexible for future use Amit Cohen
@ 2021-12-23  7:29 ` Amit Cohen
  2021-12-23  7:29 ` [PATCH net-next 3/8] selftests: mlxsw: vxlan_fdb_veto: Make the test more flexible for future use Amit Cohen
                   ` (6 subsequent siblings)
  8 siblings, 0 replies; 10+ messages in thread
From: Amit Cohen @ 2021-12-23  7:29 UTC (permalink / raw)
  To: netdev; +Cc: davem, kuba, mlxsw, idosch, Amit Cohen, Petr Machata

Add test to verify configuration of VxLAN with IPv6 underlay.
Use the existing test which checks IPv4.

Add separated test cases for learning which is not supported for IPv6
and for UDP checksum flags which are different from IPv4 flags.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
---
 .../selftests/drivers/net/mlxsw/vxlan_ipv6.sh | 65 +++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100755 tools/testing/selftests/drivers/net/mlxsw/vxlan_ipv6.sh

diff --git a/tools/testing/selftests/drivers/net/mlxsw/vxlan_ipv6.sh b/tools/testing/selftests/drivers/net/mlxsw/vxlan_ipv6.sh
new file mode 100755
index 000000000000..f2ea0163ddea
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/vxlan_ipv6.sh
@@ -0,0 +1,65 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# A wrapper to run VXLAN test for IPv6.
+
+ADDR_FAMILY=ipv6
+LOCAL_IP_1=2001:db8:1::1
+LOCAL_IP_2=2001:db8:1::2
+PREFIX_LEN=128
+UDPCSUM_FLAFS="udp6zerocsumrx udp6zerocsumtx"
+MC_IP=FF02::2
+IP_FLAG="-6"
+
+ALL_TESTS="
+	sanitization_test
+	offload_indication_test
+	sanitization_vlan_aware_test
+	offload_indication_vlan_aware_test
+"
+
+sanitization_single_dev_learning_enabled_ipv6_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0
+
+	ip link add name vxlan0 up type vxlan id 10 learning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+
+	sanitization_single_dev_test_fail
+
+	ip link del dev vxlan0
+	ip link del dev br0
+
+	log_test "vxlan device with learning enabled"
+}
+
+sanitization_single_dev_udp_checksum_ipv6_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning \
+		noudp6zerocsumrx udp6zerocsumtx ttl 20 tos inherit \
+		local $LOCAL_IP_1 dstport 4789
+
+	sanitization_single_dev_test_fail
+	log_test "vxlan device without zero udp checksum at RX"
+
+	ip link del dev vxlan0
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning \
+		udp6zerocsumrx noudp6zerocsumtx ttl 20 tos inherit \
+		local $LOCAL_IP_1 dstport 4789
+
+	sanitization_single_dev_test_fail
+	log_test "vxlan device without zero udp checksum at TX"
+
+	ip link del dev vxlan0
+	ip link del dev br0
+
+}
+
+source vxlan.sh
-- 
2.31.1


^ permalink raw reply related	[flat|nested] 10+ messages in thread
* [PATCH net-next 3/8] selftests: mlxsw: vxlan_fdb_veto: Make the test more flexible for future use
  2021-12-23  7:29 [PATCH net-next 0/8] mlxsw: Add tests for VxLAN with IPv6 underlay Amit Cohen
  2021-12-23  7:29 ` [PATCH net-next 1/8] selftests: mlxsw: vxlan: Make the test more flexible for future use Amit Cohen
  2021-12-23  7:29 ` [PATCH net-next 2/8] selftests: mlxsw: Add VxLAN configuration test for IPv6 Amit Cohen
@ 2021-12-23  7:29 ` Amit Cohen
  2021-12-23  7:29 ` [PATCH net-next 4/8] selftests: mlxsw: Add VxLAN FDB veto test for IPv6 Amit Cohen
                   ` (5 subsequent siblings)
  8 siblings, 0 replies; 10+ messages in thread
From: Amit Cohen @ 2021-12-23  7:29 UTC (permalink / raw)
  To: netdev; +Cc: davem, kuba, mlxsw, idosch, Amit Cohen, Petr Machata

vxlan_fdb_veto.sh cases are dedicated to test VxLAN with IPv4 underlay.
The main changes to test IPv6 underlay are IP addresses and some flags.

Add variables to define all the values which supposed to be different
for IPv6 testing, set them to use the existing values by default.

The next patch will define the new added variables in a separated file,
so the same tests can be used for IPv6 also.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
---
 .../drivers/net/mlxsw/vxlan_fdb_veto.sh       | 39 +++++++++++++------
 1 file changed, 27 insertions(+), 12 deletions(-)

diff --git a/tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto.sh b/tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto.sh
index 749ba3cfda1d..38148f51877a 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto.sh
@@ -4,6 +4,21 @@
 # Test vetoing of FDB entries that mlxsw can not offload. This exercises several
 # different veto vectors to test various rollback scenarios in the vxlan driver.
 
+: ${LOCAL_IP:=198.51.100.1}
+export LOCAL_IP
+
+: ${REMOTE_IP_1:=198.51.100.2}
+export REMOTE_IP_1
+
+: ${REMOTE_IP_2:=198.51.100.3}
+export REMOTE_IP_2
+
+: ${UDPCSUM_FLAFS:=noudpcsum}
+export UDPCSUM_FLAFS
+
+: ${MC_IP:=224.0.0.1}
+export MC_IP
+
 lib_dir=$(dirname $0)/../../../net/forwarding
 
 ALL_TESTS="
@@ -26,8 +41,8 @@ setup_prepare()
 	ip link set dev $swp1 master br0
 	ip link set dev $swp2 up
 
-	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
-		ttl 20 tos inherit local 198.51.100.1 dstport 4789
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP dstport 4789
 	ip link set dev vxlan0 master br0
 }
 
@@ -50,11 +65,11 @@ fdb_create_veto_test()
 	RET=0
 
 	bridge fdb add 01:02:03:04:05:06 dev vxlan0 self static \
-	       dst 198.51.100.2 2>/dev/null
+	       dst $REMOTE_IP_1 2>/dev/null
 	check_fail $? "multicast MAC not rejected"
 
 	bridge fdb add 01:02:03:04:05:06 dev vxlan0 self static \
-	       dst 198.51.100.2 2>&1 >/dev/null | grep -q mlxsw_spectrum
+	       dst $REMOTE_IP_1 2>&1 >/dev/null | grep -q mlxsw_spectrum
 	check_err $? "multicast MAC rejected without extack"
 
 	log_test "vxlan FDB veto - create"
@@ -65,15 +80,15 @@ fdb_replace_veto_test()
 	RET=0
 
 	bridge fdb add 00:01:02:03:04:05 dev vxlan0 self static \
-	       dst 198.51.100.2
+	       dst $REMOTE_IP_1
 	check_err $? "valid FDB rejected"
 
 	bridge fdb replace 00:01:02:03:04:05 dev vxlan0 self static \
-	       dst 198.51.100.2 port 1234 2>/dev/null
+	       dst $REMOTE_IP_1 port 1234 2>/dev/null
 	check_fail $? "FDB with an explicit port not rejected"
 
 	bridge fdb replace 00:01:02:03:04:05 dev vxlan0 self static \
-	       dst 198.51.100.2 port 1234 2>&1 >/dev/null \
+	       dst $REMOTE_IP_1 port 1234 2>&1 >/dev/null \
 	    | grep -q mlxsw_spectrum
 	check_err $? "FDB with an explicit port rejected without extack"
 
@@ -85,15 +100,15 @@ fdb_append_veto_test()
 	RET=0
 
 	bridge fdb add 00:00:00:00:00:00 dev vxlan0 self static \
-	       dst 198.51.100.2
+	       dst $REMOTE_IP_1
 	check_err $? "valid FDB rejected"
 
 	bridge fdb append 00:00:00:00:00:00 dev vxlan0 self static \
-	       dst 198.51.100.3 port 1234 2>/dev/null
+	       dst $REMOTE_IP_2 port 1234 2>/dev/null
 	check_fail $? "FDB with an explicit port not rejected"
 
 	bridge fdb append 00:00:00:00:00:00 dev vxlan0 self static \
-	       dst 198.51.100.3 port 1234 2>&1 >/dev/null \
+	       dst $REMOTE_IP_2 port 1234 2>&1 >/dev/null \
 	    | grep -q mlxsw_spectrum
 	check_err $? "FDB with an explicit port rejected without extack"
 
@@ -105,11 +120,11 @@ fdb_changelink_veto_test()
 	RET=0
 
 	ip link set dev vxlan0 type vxlan \
-	   group 224.0.0.1 dev lo 2>/dev/null
+	   group $MC_IP dev lo 2>/dev/null
 	check_fail $? "FDB with a multicast IP not rejected"
 
 	ip link set dev vxlan0 type vxlan \
-	   group 224.0.0.1 dev lo 2>&1 >/dev/null \
+	   group $MC_IP dev lo 2>&1 >/dev/null \
 	    | grep -q mlxsw_spectrum
 	check_err $? "FDB with a multicast IP rejected without extack"
 
-- 
2.31.1


^ permalink raw reply related	[flat|nested] 10+ messages in thread
* [PATCH net-next 4/8] selftests: mlxsw: Add VxLAN FDB veto test for IPv6
  2021-12-23  7:29 [PATCH net-next 0/8] mlxsw: Add tests for VxLAN with IPv6 underlay Amit Cohen
                   ` (2 preceding siblings ...)
  2021-12-23  7:29 ` [PATCH net-next 3/8] selftests: mlxsw: vxlan_fdb_veto: Make the test more flexible for future use Amit Cohen
@ 2021-12-23  7:29 ` Amit Cohen
  2021-12-23  7:29 ` [PATCH net-next 5/8] selftests: mlxsw: spectrum: Add a test for VxLAN flooding with IPv6 Amit Cohen
                   ` (4 subsequent siblings)
  8 siblings, 0 replies; 10+ messages in thread
From: Amit Cohen @ 2021-12-23  7:29 UTC (permalink / raw)
  To: netdev; +Cc: davem, kuba, mlxsw, idosch, Amit Cohen, Petr Machata

Add test to verify FDB vetos of VxLAN with IPv6 underlay.
Use the existing test which checks IPv4.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
---
 .../drivers/net/mlxsw/vxlan_fdb_veto_ipv6.sh         | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100755 tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto_ipv6.sh

diff --git a/tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto_ipv6.sh b/tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto_ipv6.sh
new file mode 100755
index 000000000000..66c87aab86f6
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto_ipv6.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# A wrapper to run VXLAN test for IPv6.
+
+LOCAL_IP=2001:db8:1::1
+REMOTE_IP_1=2001:db8:2::1
+REMOTE_IP_2=2001:db8:3::1
+UDPCSUM_FLAFS="udp6zerocsumrx udp6zerocsumtx"
+MC_IP=FF02::2
+
+source vxlan_fdb_veto.sh
-- 
2.31.1


^ permalink raw reply related	[flat|nested] 10+ messages in thread
* [PATCH net-next 5/8] selftests: mlxsw: spectrum: Add a test for VxLAN flooding with IPv6
  2021-12-23  7:29 [PATCH net-next 0/8] mlxsw: Add tests for VxLAN with IPv6 underlay Amit Cohen
                   ` (3 preceding siblings ...)
  2021-12-23  7:29 ` [PATCH net-next 4/8] selftests: mlxsw: Add VxLAN FDB veto test for IPv6 Amit Cohen
@ 2021-12-23  7:29 ` Amit Cohen
  2021-12-23  7:30 ` [PATCH net-next 6/8] selftests: mlxsw: spectrum-2: " Amit Cohen
                   ` (3 subsequent siblings)
  8 siblings, 0 replies; 10+ messages in thread
From: Amit Cohen @ 2021-12-23  7:29 UTC (permalink / raw)
  To: netdev; +Cc: davem, kuba, mlxsw, idosch, Amit Cohen, Petr Machata

The device stores flood records in a singly linked list where each
record stores up to X IP addresses of remote VTEPs.

The number of records is changed according to ASIC type and address
family.

Add a test which is similar to the existing IPv4 test to check IPv6.
The test is dedicated for Spectrum-1 switches, which support up to five
IPv6 addresses in one record.

The test verifies that packets are correctly flooded in various cases such
as deletion of a record in the middle of the list.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
---
 .../net/mlxsw/spectrum/vxlan_flooding_ipv6.sh | 334 ++++++++++++++++++
 1 file changed, 334 insertions(+)
 create mode 100755 tools/testing/selftests/drivers/net/mlxsw/spectrum/vxlan_flooding_ipv6.sh

diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/vxlan_flooding_ipv6.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/vxlan_flooding_ipv6.sh
new file mode 100755
index 000000000000..d8fd875ad527
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/vxlan_flooding_ipv6.sh
@@ -0,0 +1,334 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test VxLAN flooding. The device stores flood records in a singly linked list
+# where each record stores up to five IPv6 addresses of remote VTEPs. The test
+# verifies that packets are correctly flooded in various cases such as deletion
+# of a record in the middle of the list.
+#
+# +-----------------------+
+# | H1 (vrf)              |
+# |    + $h1              |
+# |    | 2001:db8:1::1/64 |
+# +----|------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# | SW |                                                                      |
+# | +--|--------------------------------------------------------------------+ |
+# | |  + $swp1                   BR0 (802.1d)                               | |
+# | |                                                                       | |
+# | |  + vxlan0 (vxlan)                                                     | |
+# | |    local 2001:db8:2::1                                                | |
+# | |    remote 2001:db8:2::{2..21}                                         | |
+# | |    id 10 dstport 4789                                                 | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |  2001:db8:2::0/64 via 2001:db8:3::2                                       |
+# |                                                                           |
+# |    + $rp1                                                                 |
+# |    | 2001:db8:3::1/64                                                     |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|--------------------------------------------------------+
+# |    |                                               R2 (vrf) |
+# |    + $rp2                                                   |
+# |      2001:db8:3::2/64                                       |
+# |                                                             |
+# +-------------------------------------------------------------+
+
+lib_dir=$(dirname $0)/../../../../net/forwarding
+
+ALL_TESTS="flooding_test"
+NUM_NETIFS=4
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 2001:db8:1::1/64
+}
+
+switch_create()
+{
+	# Make sure the bridge uses the MAC address of the local port and
+	# not that of the VxLAN's device
+	ip link add dev br0 type bridge mcast_snooping 0
+	ip link set dev br0 address $(mac_get $swp1)
+
+	ip link add name vxlan0 type vxlan id 10 nolearning \
+		udp6zerocsumrx udp6zerocsumtx ttl 20 tos inherit \
+		local 2001:db8:2::1 dstport 4789
+
+	ip address add 2001:db8:2::1/128 dev lo
+
+	ip link set dev $swp1 master br0
+	ip link set dev vxlan0 master br0
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+	ip link set dev vxlan0 up
+}
+
+switch_destroy()
+{
+	ip link set dev vxlan0 down
+	ip link set dev $swp1 down
+	ip link set dev br0 down
+
+	ip link set dev vxlan0 nomaster
+	ip link set dev $swp1 nomaster
+
+	ip address del 2001:db8:2::1/128 dev lo
+
+	ip link del dev vxlan0
+
+	ip link del dev br0
+}
+
+router1_create()
+{
+	# This router is in the default VRF, where the VxLAN device is
+	# performing the L3 lookup
+	ip link set dev $rp1 up
+	ip address add 2001:db8:3::1/64 dev $rp1
+	ip route add 2001:db8:2::0/64 via 2001:db8:3::2
+}
+
+router1_destroy()
+{
+	ip route del 2001:db8:2::0/64 via 2001:db8:3::2
+	ip address del 2001:db8:3::1/64 dev $rp1
+	ip link set dev $rp1 down
+}
+
+router2_create()
+{
+	# This router is not in the default VRF, so use simple_if_init()
+	simple_if_init $rp2 2001:db8:3::2/64
+}
+
+router2_destroy()
+{
+	simple_if_fini $rp2 2001:db8:3::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	rp1=${NETIFS[p3]}
+	rp2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+
+	switch_create
+
+	router1_create
+	router2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router2_destroy
+	router1_destroy
+
+	switch_destroy
+
+	h1_destroy
+
+	vrf_cleanup
+}
+
+flooding_remotes_add()
+{
+	local num_remotes=$1
+	local lsb
+	local i
+
+	for i in $(eval echo {1..$num_remotes}); do
+		lsb=$((i + 1))
+
+		bridge fdb append 00:00:00:00:00:00 dev vxlan0 self \
+			dst 2001:db8:2::$lsb
+	done
+}
+
+flooding_filters_add()
+{
+	local num_remotes=$1
+	local lsb
+	local i
+
+	tc qdisc add dev $rp2 clsact
+
+	for i in $(eval echo {1..$num_remotes}); do
+		lsb=$((i + 1))
+
+		tc filter add dev $rp2 ingress protocol ipv6 pref $i handle $i \
+			flower ip_proto udp dst_ip 2001:db8:2::$lsb \
+			dst_port 4789 skip_sw action drop
+	done
+}
+
+flooding_filters_del()
+{
+	local num_remotes=$1
+	local i
+
+	for i in $(eval echo {1..$num_remotes}); do
+		tc filter del dev $rp2 ingress protocol ipv6 pref $i \
+			handle $i flower
+	done
+
+	tc qdisc del dev $rp2 clsact
+}
+
+flooding_check_packets()
+{
+	local packets=("$@")
+	local num_remotes=${#packets[@]}
+	local i
+
+	for i in $(eval echo {1..$num_remotes}); do
+		tc_check_packets "dev $rp2 ingress" $i ${packets[i - 1]}
+		check_err $? "remote $i - did not get expected number of packets"
+	done
+}
+
+flooding_test()
+{
+	# Use 20 remote VTEPs that will be stored in 4 records. The array
+	# 'packets' will store how many packets are expected to be received
+	# by each remote VTEP at each stage of the test
+	declare -a packets=(1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+	local num_remotes=20
+
+	RET=0
+
+	# Add FDB entries for remote VTEPs and corresponding tc filters on the
+	# ingress of the nexthop router. These filters will count how many
+	# packets were flooded to each remote VTEP
+	flooding_remotes_add $num_remotes
+	flooding_filters_add $num_remotes
+
+	# Send one packet and make sure it is flooded to all the remote VTEPs
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 1 packet"
+
+	# Delete the third record which corresponds to VTEPs with LSB 12..16
+	# and check that packet is flooded correctly when we remove a record
+	# from the middle of the list
+	RET=0
+
+	packets=(2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 2 2 2 2 2)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::12
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::13
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::14
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::15
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::16
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 2 packets"
+
+	# Delete the first record and make sure the packet is flooded correctly
+	RET=0
+
+	packets=(2 2 2 2 2 3 3 3 3 3 1 1 1 1 1 3 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::2
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::3
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::4
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::5
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::6
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 3 packets"
+
+	# Delete the last record and make sure the packet is flooded correctly
+	RET=0
+
+	packets=(2 2 2 2 2 4 4 4 4 4 1 1 1 1 1 3 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::17
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::18
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::19
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::20
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::21
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 4 packets"
+
+	# Delete the last record, one entry at a time and make sure single
+	# entries are correctly removed
+	RET=0
+
+	packets=(2 2 2 2 2 4 5 5 5 5 1 1 1 1 1 3 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::7
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 5 packets"
+
+	RET=0
+
+	packets=(2 2 2 2 2 4 5 6 6 6 1 1 1 1 1 3 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::8
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 6 packets"
+
+	RET=0
+
+	packets=(2 2 2 2 2 4 5 6 7 7 1 1 1 1 1 3 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::9
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 7 packets"
+
+	RET=0
+
+	packets=(2 2 2 2 2 4 5 6 7 8 1 1 1 1 1 3 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::10
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 8 packets"
+
+	RET=0
+
+	packets=(2 2 2 2 2 4 5 6 7 8 1 1 1 1 1 3 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::11
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 9 packets"
+
+	flooding_filters_del $num_remotes
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
-- 
2.31.1


^ permalink raw reply related	[flat|nested] 10+ messages in thread
* [PATCH net-next 6/8] selftests: mlxsw: spectrum-2: Add a test for VxLAN flooding with IPv6
  2021-12-23  7:29 [PATCH net-next 0/8] mlxsw: Add tests for VxLAN with IPv6 underlay Amit Cohen
                   ` (4 preceding siblings ...)
  2021-12-23  7:29 ` [PATCH net-next 5/8] selftests: mlxsw: spectrum: Add a test for VxLAN flooding with IPv6 Amit Cohen
@ 2021-12-23  7:30 ` Amit Cohen
  2021-12-23  7:30 ` [PATCH net-next 7/8] selftests: mlxsw: Add test for VxLAN related traps for IPv6 Amit Cohen
                   ` (2 subsequent siblings)
  8 siblings, 0 replies; 10+ messages in thread
From: Amit Cohen @ 2021-12-23  7:30 UTC (permalink / raw)
  To: netdev; +Cc: davem, kuba, mlxsw, idosch, Amit Cohen, Petr Machata

The device stores flood records in a singly linked list where each
record stores up to X IP addresses of remote VTEPs.

The number of records is changed according to ASIC type and address
family.

Add a test which is similar to the existing IPv4 test to check IPv6.
The test is dedicated for Spectrum-2 and above, which support up to four
IPv6 addresses in one record.

The test verifies that packets are correctly flooded in various cases such
as deletion of a record in the middle of the list.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
---
 .../mlxsw/spectrum-2/vxlan_flooding_ipv6.sh   | 322 ++++++++++++++++++
 1 file changed, 322 insertions(+)
 create mode 100755 tools/testing/selftests/drivers/net/mlxsw/spectrum-2/vxlan_flooding_ipv6.sh

diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/vxlan_flooding_ipv6.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/vxlan_flooding_ipv6.sh
new file mode 100755
index 000000000000..429f7ee735cf
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/vxlan_flooding_ipv6.sh
@@ -0,0 +1,322 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test VxLAN flooding. The device stores flood records in a singly linked list
+# where each record stores up to four IPv6 addresses of remote VTEPs. The test
+# verifies that packets are correctly flooded in various cases such as deletion
+# of a record in the middle of the list.
+#
+# +-----------------------+
+# | H1 (vrf)              |
+# |    + $h1              |
+# |    | 2001:db8:1::1/64 |
+# +----|------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# | SW |                                                                      |
+# | +--|--------------------------------------------------------------------+ |
+# | |  + $swp1                   BR0 (802.1d)                               | |
+# | |                                                                       | |
+# | |  + vxlan0 (vxlan)                                                     | |
+# | |    local 2001:db8:2::1                                                | |
+# | |    remote 2001:db8:2::{2..17}                                         | |
+# | |    id 10 dstport 4789                                                 | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |  2001:db8:2::0/64 via 2001:db8:3::2                                       |
+# |                                                                           |
+# |    + $rp1                                                                 |
+# |    | 2001:db8:3::1/64                                                     |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|--------------------------------------------------------+
+# |    |                                               R2 (vrf) |
+# |    + $rp2                                                   |
+# |      2001:db8:3::2/64                                       |
+# |                                                             |
+# +-------------------------------------------------------------+
+
+lib_dir=$(dirname $0)/../../../../net/forwarding
+
+ALL_TESTS="flooding_test"
+NUM_NETIFS=4
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 2001:db8:1::1/64
+}
+
+switch_create()
+{
+	# Make sure the bridge uses the MAC address of the local port and
+	# not that of the VxLAN's device
+	ip link add dev br0 type bridge mcast_snooping 0
+	ip link set dev br0 address $(mac_get $swp1)
+
+	ip link add name vxlan0 type vxlan id 10 nolearning \
+		udp6zerocsumrx udp6zerocsumtx ttl 20 tos inherit \
+		local 2001:db8:2::1 dstport 4789
+
+	ip address add 2001:db8:2::1/128 dev lo
+
+	ip link set dev $swp1 master br0
+	ip link set dev vxlan0 master br0
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+	ip link set dev vxlan0 up
+}
+
+switch_destroy()
+{
+	ip link set dev vxlan0 down
+	ip link set dev $swp1 down
+	ip link set dev br0 down
+
+	ip link set dev vxlan0 nomaster
+	ip link set dev $swp1 nomaster
+
+	ip address del 2001:db8:2::1/128 dev lo
+
+	ip link del dev vxlan0
+
+	ip link del dev br0
+}
+
+router1_create()
+{
+	# This router is in the default VRF, where the VxLAN device is
+	# performing the L3 lookup
+	ip link set dev $rp1 up
+	ip address add 2001:db8:3::1/64 dev $rp1
+	ip route add 2001:db8:2::0/64 via 2001:db8:3::2
+}
+
+router1_destroy()
+{
+	ip route del 2001:db8:2::0/64 via 2001:db8:3::2
+	ip address del 2001:db8:3::1/64 dev $rp1
+	ip link set dev $rp1 down
+}
+
+router2_create()
+{
+	# This router is not in the default VRF, so use simple_if_init()
+	simple_if_init $rp2 2001:db8:3::2/64
+}
+
+router2_destroy()
+{
+	simple_if_fini $rp2 2001:db8:3::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	rp1=${NETIFS[p3]}
+	rp2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+
+	switch_create
+
+	router1_create
+	router2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router2_destroy
+	router1_destroy
+
+	switch_destroy
+
+	h1_destroy
+
+	vrf_cleanup
+}
+
+flooding_remotes_add()
+{
+	local num_remotes=$1
+	local lsb
+	local i
+
+	for i in $(eval echo {1..$num_remotes}); do
+		lsb=$((i + 1))
+
+		bridge fdb append 00:00:00:00:00:00 dev vxlan0 self \
+			dst 2001:db8:2::$lsb
+	done
+}
+
+flooding_filters_add()
+{
+	local num_remotes=$1
+	local lsb
+	local i
+
+	tc qdisc add dev $rp2 clsact
+
+	for i in $(eval echo {1..$num_remotes}); do
+		lsb=$((i + 1))
+
+		tc filter add dev $rp2 ingress protocol ipv6 pref $i handle $i \
+			flower ip_proto udp dst_ip 2001:db8:2::$lsb \
+			dst_port 4789 skip_sw action drop
+	done
+}
+
+flooding_filters_del()
+{
+	local num_remotes=$1
+	local i
+
+	for i in $(eval echo {1..$num_remotes}); do
+		tc filter del dev $rp2 ingress protocol ipv6 pref $i \
+			handle $i flower
+	done
+
+	tc qdisc del dev $rp2 clsact
+}
+
+flooding_check_packets()
+{
+	local packets=("$@")
+	local num_remotes=${#packets[@]}
+	local i
+
+	for i in $(eval echo {1..$num_remotes}); do
+		tc_check_packets "dev $rp2 ingress" $i ${packets[i - 1]}
+		check_err $? "remote $i - did not get expected number of packets"
+	done
+}
+
+flooding_test()
+{
+	# Use 16 remote VTEPs that will be stored in 4 records. The array
+	# 'packets' will store how many packets are expected to be received
+	# by each remote VTEP at each stage of the test
+	declare -a packets=(1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+	local num_remotes=16
+
+	RET=0
+
+	# Add FDB entries for remote VTEPs and corresponding tc filters on the
+	# ingress of the nexthop router. These filters will count how many
+	# packets were flooded to each remote VTEP
+	flooding_remotes_add $num_remotes
+	flooding_filters_add $num_remotes
+
+	# Send one packet and make sure it is flooded to all the remote VTEPs
+	$MZ $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 1 packet"
+
+	# Delete the third record which corresponds to VTEPs with LSB 10..13
+	# and check that packet is flooded correctly when we remove a record
+	# from the middle of the list
+	RET=0
+
+	packets=(2 2 2 2 2 2 2 2 1 1 1 1 2 2 2 2)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::10
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::11
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::12
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::13
+
+	$MZ $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 2 packets"
+
+	# Delete the first record and make sure the packet is flooded correctly
+	RET=0
+
+	packets=(2 2 2 2 3 3 3 3 1 1 1 1 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::2
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::3
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::4
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::5
+
+	$MZ $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 3 packets"
+
+	# Delete the last record and make sure the packet is flooded correctly
+	RET=0
+
+	packets=(2 2 2 2 4 4 4 4 1 1 1 1 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::14
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::15
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::16
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::17
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 4 packets"
+
+	# Delete the last record, one entry at a time and make sure single
+	# entries are correctly removed
+	RET=0
+
+	packets=(2 2 2 2 4 5 5 5 1 1 1 1 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::6
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 5 packets"
+
+	RET=0
+
+	packets=(2 2 2 2 4 5 6 6 1 1 1 1 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::7
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 6 packets"
+
+	RET=0
+
+	packets=(2 2 2 2 4 5 6 7 1 1 1 1 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::8
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 7 packets"
+
+	RET=0
+
+	packets=(2 2 2 2 4 5 6 7 1 1 1 1 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::9
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 8 packets"
+
+	flooding_filters_del $num_remotes
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
-- 
2.31.1


^ permalink raw reply related	[flat|nested] 10+ messages in thread
* [PATCH net-next 7/8] selftests: mlxsw: Add test for VxLAN related traps for IPv6
  2021-12-23  7:29 [PATCH net-next 0/8] mlxsw: Add tests for VxLAN with IPv6 underlay Amit Cohen
                   ` (5 preceding siblings ...)
  2021-12-23  7:30 ` [PATCH net-next 6/8] selftests: mlxsw: spectrum-2: " Amit Cohen
@ 2021-12-23  7:30 ` Amit Cohen
  2021-12-23  7:30 ` [PATCH net-next 8/8] selftests: mlxsw: devlink_trap_tunnel_vxlan: Fix 'decap_error' case Amit Cohen
  2021-12-23 11:30 ` [PATCH net-next 0/8] mlxsw: Add tests for VxLAN with IPv6 underlay patchwork-bot+netdevbpf
  8 siblings, 0 replies; 10+ messages in thread
From: Amit Cohen @ 2021-12-23  7:30 UTC (permalink / raw)
  To: netdev; +Cc: davem, kuba, mlxsw, idosch, Amit Cohen, Petr Machata

The test configures VxLAN with IPv6 underlay and verifies that the
expected traps are triggered under the right conditions.

The test is similar to the existing IPv4 test.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
---
 .../mlxsw/devlink_trap_tunnel_vxlan_ipv6.sh   | 342 ++++++++++++++++++
 1 file changed, 342 insertions(+)
 create mode 100755 tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan_ipv6.sh

diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan_ipv6.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan_ipv6.sh
new file mode 100755
index 000000000000..f6c16cbb6cf7
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan_ipv6.sh
@@ -0,0 +1,342 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test devlink-trap tunnel drops and exceptions functionality over mlxsw.
+# Check all traps to make sure they are triggered under the right
+# conditions.
+
+# +------------------------+
+# | H1 (vrf)               |
+# |    + $h1               |
+# |    | 2001:db8:1::1/64  |
+# +----|-------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# | SW |                                                                      |
+# | +--|--------------------------------------------------------------------+ |
+# | |  + $swp1                   BR1 (802.1d)                               | |
+# | |                                                                       | |
+# | |  + vx1 (vxlan)                                                        | |
+# | |    local 2001:db8:3::1                                                | |
+# | |    id 1000 dstport $VXPORT                                            | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |    + $rp1                                                                 |
+# |    | 2001:db8:3::1/64                                                     |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|--------------------------------------------------------+
+# |    |                                             VRF2       |
+# |    + $rp2                                                   |
+# |      2001:db8:3::2/64                                       |
+# |                                                             |
+# +-------------------------------------------------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	decap_error_test
+	overlay_smac_is_mc_test
+"
+
+NUM_NETIFS=4
+source $lib_dir/lib.sh
+source $lib_dir/tc_common.sh
+source $lib_dir/devlink_lib.sh
+
+: ${VXPORT:=4789}
+export VXPORT
+
+h1_create()
+{
+	simple_if_init $h1 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 2001:db8:1::1/64
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 0 mcast_snooping 0
+	# Make sure the bridge uses the MAC address of the local port and not
+	# that of the VxLAN's device.
+	ip link set dev br1 address $(mac_get $swp1)
+	ip link set dev br1 up
+
+	tc qdisc add dev $swp1 clsact
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+
+	ip link add name vx1 type vxlan id 1000 local 2001:db8:3::1 \
+		dstport "$VXPORT" nolearning udp6zerocsumrx udp6zerocsumtx \
+		tos inherit ttl 100
+	ip link set dev vx1 master br1
+	ip link set dev vx1 up
+
+	ip link set dev $rp1 up
+	ip address add dev $rp1 2001:db8:3::1/64
+}
+
+switch_destroy()
+{
+	ip address del dev $rp1 2001:db8:3::1/64
+	ip link set dev $rp1 down
+
+	ip link set dev vx1 down
+	ip link set dev vx1 nomaster
+	ip link del dev vx1
+
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+	tc qdisc del dev $swp1 clsact
+
+	ip link set dev br1 down
+	ip link del dev br1
+}
+
+vrf2_create()
+{
+	simple_if_init $rp2 2001:db8:3::2/64
+}
+
+vrf2_destroy()
+{
+	simple_if_fini $rp2 2001:db8:3::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	rp1=${NETIFS[p3]}
+	rp2=${NETIFS[p4]}
+
+	vrf_prepare
+	forwarding_enable
+	h1_create
+	switch_create
+	vrf2_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	vrf2_destroy
+	switch_destroy
+	h1_destroy
+	forwarding_restore
+	vrf_cleanup
+}
+
+ecn_payload_get()
+{
+	local dest_mac=$(mac_get $h1)
+	local saddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:03"
+	local daddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01"
+	p=$(:
+		)"08:"$(                      : VXLAN flags
+		)"00:00:00:"$(                : VXLAN reserved
+		)"00:03:e8:"$(                : VXLAN VNI : 1000
+		)"00:"$(                      : VXLAN reserved
+		)"$dest_mac:"$(               : ETH daddr
+		)"00:00:00:00:00:00:"$(       : ETH saddr
+		)"86:dd:"$(                   : ETH type
+		)"6"$(                        : IP version
+		)"0:0"$(		      : Traffic class
+		)"0:00:00:"$(                 : Flow label
+		)"00:08:"$(                   : Payload length
+		)"3a:"$(                      : Next header
+		)"04:"$(                      : Hop limit
+		)"$saddr:"$(                  : IP saddr
+		)"$daddr:"$(		      : IP daddr
+		)"80:"$(                      : ICMPv6.type
+		)"00:"$(                      : ICMPv6.code
+		)"00:"$(                      : ICMPv6.checksum
+		)
+	echo $p
+}
+
+ecn_decap_test()
+{
+	local trap_name="decap_error"
+	local desc=$1; shift
+	local ecn_desc=$1; shift
+	local outer_tos=$1; shift
+	local mz_pid
+
+	RET=0
+
+	tc filter add dev $swp1 egress protocol ipv6 pref 1 handle 101 \
+		flower src_ip 2001:db8:1::3 dst_ip 2001:db8:1::1 action pass
+
+	rp1_mac=$(mac_get $rp1)
+	payload=$(ecn_payload_get)
+
+	ip vrf exec v$rp2 $MZ -6 $rp2 -c 0 -d 1msec -b $rp1_mac \
+		-B 2001:db8:3::1 -t udp \
+		sp=12345,dp=$VXPORT,tos=$outer_tos,p=$payload -q &
+	mz_pid=$!
+
+	devlink_trap_exception_test $trap_name
+
+	tc_check_packets "dev $swp1 egress" 101 0
+	check_err $? "Packets were not dropped"
+
+	log_test "$desc: Inner ECN is not ECT and outer is $ecn_desc"
+
+	kill $mz_pid && wait $mz_pid &> /dev/null
+	tc filter del dev $swp1 egress protocol ipv6 pref 1 handle 101 flower
+}
+
+reserved_bits_payload_get()
+{
+	local dest_mac=$(mac_get $h1)
+	local saddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:03"
+	local daddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01"
+	p=$(:
+		)"08:"$(                      : VXLAN flags
+		)"01:00:00:"$(                : VXLAN reserved
+		)"00:03:e8:"$(                : VXLAN VNI : 1000
+		)"00:"$(                      : VXLAN reserved
+		)"$dest_mac:"$(               : ETH daddr
+		)"00:00:00:00:00:00:"$(       : ETH saddr
+		)"86:dd:"$(                   : ETH type
+		)"6"$(                        : IP version
+		)"0:0"$(		      : Traffic class
+		)"0:00:00:"$(                 : Flow label
+		)"00:08:"$(                   : Payload length
+		)"3a:"$(                      : Next header
+		)"04:"$(                      : Hop limit
+		)"$saddr:"$(                  : IP saddr
+		)"$daddr:"$(		      : IP daddr
+		)"80:"$(                      : ICMPv6.type
+		)"00:"$(                      : ICMPv6.code
+		)"00:"$(                      : ICMPv6.checksum
+		)
+	echo $p
+}
+
+short_payload_get()
+{
+        dest_mac=$(mac_get $h1)
+        p=$(:
+		)"08:"$(                      : VXLAN flags
+		)"00:00:00:"$(                : VXLAN reserved
+		)"00:03:e8:"$(                : VXLAN VNI : 1000
+		)"00:"$(                      : VXLAN reserved
+		)"$dest_mac:"$(               : ETH daddr
+		)"00:00:00:00:00:00:"$(       : ETH saddr
+		)
+        echo $p
+}
+
+corrupted_packet_test()
+{
+	local trap_name="decap_error"
+	local desc=$1; shift
+	local payload_get=$1; shift
+	local mz_pid
+
+	RET=0
+
+	# In case of too short packet, there is no any inner packet,
+	# so the matching will always succeed
+	tc filter add dev $swp1 egress protocol ipv6 pref 1 handle 101 \
+		flower skip_hw src_ip 2001:db8:3::1 dst_ip 2001:db8:1::1 \
+		action pass
+
+	rp1_mac=$(mac_get $rp1)
+	payload=$($payload_get)
+	ip vrf exec v$rp2 $MZ -6 $rp2 -c 0 -d 1msec -b $rp1_mac \
+		-B 2001:db8:3::1 -t udp sp=12345,dp=$VXPORT,p=$payload -q &
+	mz_pid=$!
+
+	devlink_trap_exception_test $trap_name
+
+	tc_check_packets "dev $swp1 egress" 101 0
+	check_err $? "Packets were not dropped"
+
+	log_test "$desc"
+
+	kill $mz_pid && wait $mz_pid &> /dev/null
+	tc filter del dev $swp1 egress protocol ipv6 pref 1 handle 101 flower
+}
+
+decap_error_test()
+{
+	ecn_decap_test "Decap error" "ECT(1)" 01
+	ecn_decap_test "Decap error" "ECT(0)" 02
+	ecn_decap_test "Decap error" "CE" 03
+
+	corrupted_packet_test "Decap error: Reserved bits in use" \
+		"reserved_bits_payload_get"
+	corrupted_packet_test "Decap error: Too short inner packet" \
+		"short_payload_get"
+}
+
+mc_smac_payload_get()
+{
+	local dest_mac=$(mac_get $h1)
+	local source_mac="01:02:03:04:05:06"
+	local saddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:03"
+	local daddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01"
+	p=$(:
+		)"08:"$(                      : VXLAN flags
+		)"00:00:00:"$(                : VXLAN reserved
+		)"00:03:e8:"$(                : VXLAN VNI : 1000
+		)"00:"$(                      : VXLAN reserved
+		)"$dest_mac:"$(               : ETH daddr
+		)"$source_mac:"$(	      : ETH saddr
+		)"86:dd:"$(                   : ETH type
+		)"6"$(                        : IP version
+		)"0:0"$(		      : Traffic class
+		)"0:00:00:"$(                 : Flow label
+		)"00:08:"$(                   : Payload length
+		)"3a:"$(                      : Next header
+		)"04:"$(                      : Hop limit
+		)"$saddr:"$(                  : IP saddr
+		)"$daddr:"$(		      : IP daddr
+		)"80:"$(                      : ICMPv6.type
+		)"00:"$(                      : ICMPv6.code
+		)"00:"$(                      : ICMPv6.checksum
+		)
+	echo $p
+}
+
+overlay_smac_is_mc_test()
+{
+	local trap_name="overlay_smac_is_mc"
+	local mz_pid
+
+	RET=0
+
+	# The matching will be checked on devlink_trap_drop_test()
+	# and the filter will be removed on devlink_trap_drop_cleanup()
+	tc filter add dev $swp1 egress protocol ipv6 pref 1 handle 101 \
+		flower src_mac 01:02:03:04:05:06 action pass
+
+	rp1_mac=$(mac_get $rp1)
+	payload=$(mc_smac_payload_get)
+
+	ip vrf exec v$rp2 $MZ -6 $rp2 -c 0 -d 1msec -b $rp1_mac \
+		-B 2001:db8:3::1 -t udp sp=12345,dp=$VXPORT,p=$payload -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $swp1 101
+
+	log_test "Overlay source MAC is multicast"
+
+	devlink_trap_drop_cleanup $mz_pid $swp1 "ipv6" 1 101
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
-- 
2.31.1


^ permalink raw reply related	[flat|nested] 10+ messages in thread
* [PATCH net-next 8/8] selftests: mlxsw: devlink_trap_tunnel_vxlan: Fix 'decap_error' case
  2021-12-23  7:29 [PATCH net-next 0/8] mlxsw: Add tests for VxLAN with IPv6 underlay Amit Cohen
                   ` (6 preceding siblings ...)
  2021-12-23  7:30 ` [PATCH net-next 7/8] selftests: mlxsw: Add test for VxLAN related traps for IPv6 Amit Cohen
@ 2021-12-23  7:30 ` Amit Cohen
  2021-12-23 11:30 ` [PATCH net-next 0/8] mlxsw: Add tests for VxLAN with IPv6 underlay patchwork-bot+netdevbpf
  8 siblings, 0 replies; 10+ messages in thread
From: Amit Cohen @ 2021-12-23  7:30 UTC (permalink / raw)
  To: netdev; +Cc: davem, kuba, mlxsw, idosch, Amit Cohen, Petr Machata

Change the case that sends packets with "too short inner packet" to
include part of ethernet header, to make the trap to be triggered due to
the correct reason.

According to ASIC arch, the trap is triggered if overlay packet length is
less than 18B, and the minimum inner packet should include source MAC and
destination MAC.

Till now the case passed because one of the reserved bits in VxLAN
header was used. This issue was found while adding an equivalent test
for IPv6.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
---
 .../drivers/net/mlxsw/devlink_trap_tunnel_vxlan.sh         | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan.sh
index 10e0f3dbc930..5f6eb965cfd1 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan.sh
@@ -217,9 +217,11 @@ short_payload_get()
         dest_mac=$(mac_get $h1)
         p=$(:
 		)"08:"$(                      : VXLAN flags
-		)"01:00:00:"$(                : VXLAN reserved
+		)"00:00:00:"$(                : VXLAN reserved
 		)"00:03:e8:"$(                : VXLAN VNI : 1000
 		)"00:"$(                      : VXLAN reserved
+		)"$dest_mac:"$(               : ETH daddr
+		)"00:00:00:00:00:00:"$(       : ETH saddr
 		)
         echo $p
 }
@@ -263,7 +265,8 @@ decap_error_test()
 
 	corrupted_packet_test "Decap error: Reserved bits in use" \
 		"reserved_bits_payload_get"
-	corrupted_packet_test "Decap error: No L2 header" "short_payload_get"
+	corrupted_packet_test "Decap error: Too short inner packet" \
+		"short_payload_get"
 }
 
 mc_smac_payload_get()
-- 
2.31.1


^ permalink raw reply related	[flat|nested] 10+ messages in thread
* Re: [PATCH net-next 0/8] mlxsw: Add tests for VxLAN with IPv6 underlay
  2021-12-23  7:29 [PATCH net-next 0/8] mlxsw: Add tests for VxLAN with IPv6 underlay Amit Cohen
                   ` (7 preceding siblings ...)
  2021-12-23  7:30 ` [PATCH net-next 8/8] selftests: mlxsw: devlink_trap_tunnel_vxlan: Fix 'decap_error' case Amit Cohen
@ 2021-12-23 11:30 ` patchwork-bot+netdevbpf
  8 siblings, 0 replies; 10+ messages in thread
From: patchwork-bot+netdevbpf @ 2021-12-23 11:30 UTC (permalink / raw)
  To: Amit Cohen; +Cc: netdev, davem, kuba, mlxsw, idosch

Hello:

This series was applied to netdev/net-next.git (master)
by David S. Miller <davem@davemloft.net>:

On Thu, 23 Dec 2021 09:29:54 +0200 you wrote:
> mlxsw driver lately added support for VxLAN with IPv6 underlay.
> This set adds tests for IPv6, which are dedicated for mlxsw.
> 
> Patch set overview:
> Patches #1-#2 make vxlan.sh test more flexible and extend it for IPv6
> Patches #3-#4 make vxlan_fdb_veto.sh test more flexible and extend it
> for IPv6
> Patches #5-#6 add tests for VxLAN flooding for different ASICs
> Patches #7-#8 add test for VxLAN related traps and align the existing
> test
> 
> [...]

Here is the summary with links:
  - [net-next,1/8] selftests: mlxsw: vxlan: Make the test more flexible for future use
    https://git.kernel.org/netdev/net-next/c/8e059d64bee4
  - [net-next,2/8] selftests: mlxsw: Add VxLAN configuration test for IPv6
    https://git.kernel.org/netdev/net-next/c/21d4282dc1b8
  - [net-next,3/8] selftests: mlxsw: vxlan_fdb_veto: Make the test more flexible for future use
    https://git.kernel.org/netdev/net-next/c/696285305b32
  - [net-next,4/8] selftests: mlxsw: Add VxLAN FDB veto test for IPv6
    https://git.kernel.org/netdev/net-next/c/1c7b183dac89
  - [net-next,5/8] selftests: mlxsw: spectrum: Add a test for VxLAN flooding with IPv6
    https://git.kernel.org/netdev/net-next/c/7ae23eddfa3e
  - [net-next,6/8] selftests: mlxsw: spectrum-2: Add a test for VxLAN flooding with IPv6
    https://git.kernel.org/netdev/net-next/c/d01724dd2a66
  - [net-next,7/8] selftests: mlxsw: Add test for VxLAN related traps for IPv6
    https://git.kernel.org/netdev/net-next/c/c777d726267c
  - [net-next,8/8] selftests: mlxsw: devlink_trap_tunnel_vxlan: Fix 'decap_error' case
    https://git.kernel.org/netdev/net-next/c/810ef9552dec

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html



^ permalink raw reply	[flat|nested] 10+ messages in thread
end of thread, other threads:[~2021-12-23 11:30 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-12-23  7:29 [PATCH net-next 0/8] mlxsw: Add tests for VxLAN with IPv6 underlay Amit Cohen
2021-12-23  7:29 ` [PATCH net-next 1/8] selftests: mlxsw: vxlan: Make the test more flexible for future use Amit Cohen
2021-12-23  7:29 ` [PATCH net-next 2/8] selftests: mlxsw: Add VxLAN configuration test for IPv6 Amit Cohen
2021-12-23  7:29 ` [PATCH net-next 3/8] selftests: mlxsw: vxlan_fdb_veto: Make the test more flexible for future use Amit Cohen
2021-12-23  7:29 ` [PATCH net-next 4/8] selftests: mlxsw: Add VxLAN FDB veto test for IPv6 Amit Cohen
2021-12-23  7:29 ` [PATCH net-next 5/8] selftests: mlxsw: spectrum: Add a test for VxLAN flooding with IPv6 Amit Cohen
2021-12-23  7:30 ` [PATCH net-next 6/8] selftests: mlxsw: spectrum-2: " Amit Cohen
2021-12-23  7:30 ` [PATCH net-next 7/8] selftests: mlxsw: Add test for VxLAN related traps for IPv6 Amit Cohen
2021-12-23  7:30 ` [PATCH net-next 8/8] selftests: mlxsw: devlink_trap_tunnel_vxlan: Fix 'decap_error' case Amit Cohen
2021-12-23 11:30 ` [PATCH net-next 0/8] mlxsw: Add tests for VxLAN with IPv6 underlay patchwork-bot+netdevbpf

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