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selftests: forwarding: Make VXLAN ECN encap tests more robust

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These tests sometimes fail on the netdev CI because the expected number
of packets is larger than expected [1].

Make the tests more robust by specifically matching on VXLAN
encapsulated packets and allowing up to five stray packets instead of
just two.

[1]
 [...]
 # TEST: VXLAN: ECN encap: 0x00->0x00                                  [FAIL]
 # v1: Expected to capture 10 packets, got 13.
 # TEST: VXLAN: ECN encap: 0x01->0x01                                  [ OK ]
 # TEST: VXLAN: ECN encap: 0x02->0x02                                  [ OK ]
 # TEST: VXLAN: ECN encap: 0x03->0x02                                  [ OK ]
 [...]

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/20240304095612.462900-6-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Ido Schimmel 2024-03-04 11:56:11 +02:00 committed by Jakub Kicinski
parent dfbab74044
commit f0008b0497
2 changed files with 4 additions and 4 deletions
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4
tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh
View File

@ -495,7 +495,7 @@ vxlan_ping_test()
local delta=$((t1 - t0))
# Tolerate a couple stray extra packets.
((expect <= delta && delta <= expect + 2))
((expect <= delta && delta <= expect + 5))
check_err $? "$capture_dev: Expected to capture $expect packets, got $delta."
}
@ -532,7 +532,7 @@ __test_ecn_encap()
RET=0
tc filter add dev v1 egress pref 77 prot ip \
flower ip_tos $tos action pass
flower ip_tos $tos ip_proto udp dst_port $VXPORT action pass
sleep 1
vxlan_ping_test $h1 192.0.2.3 "-Q $q" v1 egress 77 10
tc filter del dev v1 egress pref 77 prot ip

4
tools/testing/selftests/net/forwarding/vxlan_bridge_1d_ipv6.sh
View File

@ -616,7 +616,7 @@ vxlan_ping_test()
local delta=$((t1 - t0))
# Tolerate a couple stray extra packets.
((expect <= delta && delta <= expect + 2))
((expect <= delta && delta <= expect + 5))
check_err $? "$capture_dev: Expected to capture $expect packets, got $delta."
}
@ -653,7 +653,7 @@ __test_ecn_encap()
RET=0
tc filter add dev v1 egress pref 77 protocol ipv6 \
flower ip_tos $tos action pass
flower ip_tos $tos ip_proto udp dst_port $VXPORT action pass
sleep 1
vxlan_ping_test $h1 2001:db8:1::3 "-Q $q" v1 egress 77 10
tc filter del dev v1 egress pref 77 protocol ipv6