From: "Jason A. Donenfeld" <Jason@zx2c4.com>
To: netdev@vger.kernel.org, davem@davemloft.net
Subject: [PATCH net 3/7] wireguard: selftests: test multiple parallel streams
Date: Mon, 22 Feb 2021 17:25:45 +0100 [thread overview]
Message-ID: <20210222162549.3252778-4-Jason@zx2c4.com> (raw)
In-Reply-To: <20210222162549.3252778-1-Jason@zx2c4.com>
In order to test ndo_start_xmit being called in parallel, explicitly add
separate tests, which should all run on different cores. This should
help tease out bugs associated with queueing up packets from different
cores in parallel. Currently, it hasn't found those types of bugs, but
given future planned work, this is a useful regression to avoid.
Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---
tools/testing/selftests/wireguard/netns.sh | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/wireguard/netns.sh b/tools/testing/selftests/wireguard/netns.sh
index 74c69b75f6f5..7ed7cd95e58f 100755
--- a/tools/testing/selftests/wireguard/netns.sh
+++ b/tools/testing/selftests/wireguard/netns.sh
@@ -39,7 +39,7 @@ ip0() { pretty 0 "ip $*"; ip -n $netns0 "$@"; }
ip1() { pretty 1 "ip $*"; ip -n $netns1 "$@"; }
ip2() { pretty 2 "ip $*"; ip -n $netns2 "$@"; }
sleep() { read -t "$1" -N 1 || true; }
-waitiperf() { pretty "${1//*-}" "wait for iperf:5201 pid $2"; while [[ $(ss -N "$1" -tlpH 'sport = 5201') != *\"iperf3\",pid=$2,fd=* ]]; do sleep 0.1; done; }
+waitiperf() { pretty "${1//*-}" "wait for iperf:${3:-5201} pid $2"; while [[ $(ss -N "$1" -tlpH "sport = ${3:-5201}") != *\"iperf3\",pid=$2,fd=* ]]; do sleep 0.1; done; }
waitncatudp() { pretty "${1//*-}" "wait for udp:1111 pid $2"; while [[ $(ss -N "$1" -ulpH 'sport = 1111') != *\"ncat\",pid=$2,fd=* ]]; do sleep 0.1; done; }
waitiface() { pretty "${1//*-}" "wait for $2 to come up"; ip netns exec "$1" bash -c "while [[ \$(< \"/sys/class/net/$2/operstate\") != up ]]; do read -t .1 -N 0 || true; done;"; }
@@ -141,6 +141,19 @@ tests() {
n2 iperf3 -s -1 -B fd00::2 &
waitiperf $netns2 $!
n1 iperf3 -Z -t 3 -b 0 -u -c fd00::2
+
+ # TCP over IPv4, in parallel
+ for max in 4 5 50; do
+ local pids=( )
+ for ((i=0; i < max; ++i)) do
+ n2 iperf3 -p $(( 5200 + i )) -s -1 -B 192.168.241.2 &
+ pids+=( $! ); waitiperf $netns2 $! $(( 5200 + i ))
+ done
+ for ((i=0; i < max; ++i)) do
+ n1 iperf3 -Z -t 3 -p $(( 5200 + i )) -c 192.168.241.2 &
+ done
+ wait "${pids[@]}"
+ done
}
[[ $(ip1 link show dev wg0) =~ mtu\ ([0-9]+) ]] && orig_mtu="${BASH_REMATCH[1]}"
--
2.30.1
next prev parent reply other threads:[~2021-02-22 16:29 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-22 16:25 [PATCH net 0/7] wireguard fixes for 5.12-rc1 Jason A. Donenfeld
2021-02-22 16:25 ` [PATCH net 1/7] wireguard: avoid double unlikely() notation when using IS_ERR() Jason A. Donenfeld
2021-02-22 16:25 ` [PATCH net 2/7] wireguard: socket: remove bogus __be32 annotation Jason A. Donenfeld
2021-02-22 16:25 ` Jason A. Donenfeld [this message]
2021-02-22 16:25 ` [PATCH net 4/7] wireguard: peer: put frequently used members above cache lines Jason A. Donenfeld
2021-02-22 16:25 ` [PATCH net 5/7] wireguard: device: do not generate ICMP for non-IP packets Jason A. Donenfeld
2021-02-22 16:25 ` [PATCH net 6/7] wireguard: queueing: get rid of per-peer ring buffers Jason A. Donenfeld
2021-02-22 16:25 ` [PATCH net 7/7] wireguard: kconfig: use arm chacha even with no neon Jason A. Donenfeld
2021-02-24 0:02 ` [PATCH net 0/7] wireguard fixes for 5.12-rc1 Jakub Kicinski
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