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selftests: xsk: Disable IPv6 on VETH1
[ Upstream commitf2b50f1726
] This change fixes flakiness in the BIDIRECTIONAL test: # [is_pkt_valid] expected length [60], got length [90] not ok 1 FAIL: SKB BUSY-POLL BIDIRECTIONAL When IPv6 is enabled, the interface will periodically send MLDv1 and MLDv2 packets. These packets can cause the BIDIRECTIONAL test to fail since it uses VETH0 for RX. For other tests, this was not a problem since they only receive on VETH1 and IPv6 was already disabled on VETH0. Fixes:a89052572e
("selftests/bpf: Xsk selftests framework") Signed-off-by: Kal Conley <kal.conley@dectris.com> Link: https://lore.kernel.org/r/20230405082905.6303-1-kal.conley@dectris.com Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -118,6 +118,7 @@ setup_vethPairs() {
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ip link add ${VETH0} numtxqueues 4 numrxqueues 4 type veth peer name ${VETH1} numtxqueues 4 numrxqueues 4
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if [ -f /proc/net/if_inet6 ]; then
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echo 1 > /proc/sys/net/ipv6/conf/${VETH0}/disable_ipv6
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echo 1 > /proc/sys/net/ipv6/conf/${VETH1}/disable_ipv6
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fi
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if [[ $verbose -eq 1 ]]; then
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echo "setting up ${VETH1}: namespace: ${NS1}"
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