From nobody Wed Dec 31 19:02:26 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 62620C4167B for ; Mon, 30 Oct 2023 17:41:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233948AbjJ3Rlg (ORCPT ); Mon, 30 Oct 2023 13:41:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49738 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233841AbjJ3Rle (ORCPT ); Mon, 30 Oct 2023 13:41:34 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C50A4E9 for ; Mon, 30 Oct 2023 10:40:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1698687643; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type; bh=I2JHh73zIxCYXhkBKGYhrEXftWXIPybkxG0xOR3on7I=; b=SrCiRFo0pkMu4htZfRcCr6mzMeKLMdv1DNLKfpHzJhWjhe9gISxNZ2YK9G8ln7VvxfH7Jn zzazebc+y1s3m4FTDTPB1tTvRlgXme+p32qCdYJn05e6wRl9XEla4vdv51eEjb+SE1kU9F uL+zdliYJMlCoZVlN9TTClnBlZtzkmY= Received: from mail-qk1-f200.google.com (mail-qk1-f200.google.com [209.85.222.200]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-626-_2npL45QM6ijwLWuimCdgA-1; Mon, 30 Oct 2023 13:40:41 -0400 X-MC-Unique: _2npL45QM6ijwLWuimCdgA-1 Received: by mail-qk1-f200.google.com with SMTP id af79cd13be357-778a2e847f4so603002185a.0 for ; Mon, 30 Oct 2023 10:40:41 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698687641; x=1699292441; h=user-agent:content-disposition:mime-version:message-id:subject:cc :to:from:date:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=I2JHh73zIxCYXhkBKGYhrEXftWXIPybkxG0xOR3on7I=; b=QZUok/gPLYotJd4ELbS5QUCDJI474PM+IW4b0UPRRFMK7AAGWuCCK2bQYW3iIMJ4EM qTIQ7E+4M0Xa5YmQ+S9A1e8dZ58QeFrV9vhDn+G7s1IS8+bZqUTl9h7/ImTuxhI/jQ2v KSZpbIOcpudEKAmJqCUswyV4Xq4waLGuAZggxqtTPS7lbIQrhfrD7eGUs0R5Nxuzm+y7 z8s3ug0GdyPy3veuaJ9P589zwdGKeGpXkpYgZNxEPYGSavLAkmRNBmrg0EtNruMeG2HE uIc8OXweGnSHzoA/Hb5+vIdC1wl1elKFfnoPeXHdbA/6O0FlY/FTV2w+OWI2Qo1H6mTN iQkg== X-Gm-Message-State: AOJu0YznW8aoS8VSehKZUSXahLKK4om4I07XICwuOTUv5a3a3jqOndWm G1rpwF1eWbHwgLxi+mKsJu/QDUgvGKyGtCsAxbboLqkXYVZkn1EeWVwngs+7d8qLrJKyRUMcGrn tRBM4h0tUyLCGsI9B5eXmyzw4 X-Received: by 2002:a05:620a:2589:b0:778:94cc:723 with SMTP id x9-20020a05620a258900b0077894cc0723mr12430101qko.1.1698687641246; Mon, 30 Oct 2023 10:40:41 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGoqut/KAS12Hj1elfEzt5W6duWsTX0hSRvTSrWXOatBJSSICCKoO+CiCrF5FveWevaaikHtA== X-Received: by 2002:a05:620a:2589:b0:778:94cc:723 with SMTP id x9-20020a05620a258900b0077894cc0723mr12430079qko.1.1698687640998; Mon, 30 Oct 2023 10:40:40 -0700 (PDT) Received: from fedora ([142.181.225.135]) by smtp.gmail.com with ESMTPSA id w7-20020a05620a094700b007742c6823a3sm3501927qkw.108.2023.10.30.10.40.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Oct 2023 10:40:40 -0700 (PDT) Date: Mon, 30 Oct 2023 13:40:39 -0400 From: Lucas Karpinski To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, shuah@kernel.org Cc: netdev@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2] selftests/net: synchronize udpgso_bench rx and tx Message-ID: <6ceki76bcv7qz6de5rxc26ot6aezdmeoz2g4ubtve7qwozmyyw@zibbg64wsdjp> MIME-Version: 1.0 Content-Disposition: inline User-Agent: NeoMutt/20231006 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The sockets used by udpgso_bench_tx aren't always ready when udpgso_bench_tx transmits packets. This issue is more prevalent in -rt kernels, but can occur in both. Replace the hacky sleep calls with a function that checks whether the ports in the namespace are ready for use. Suggested-by: Paolo Abeni Signed-off-by: Lucas Karpinski --- https://lore.kernel.org/all/t7v6mmuobrbucyfpwqbcujtvpa3wxnsrc36cz5rr6kzzrzk= wtj@toz6mr4ggnyp/ Changelog v2:=20 - applied synchronization method suggested by Pablo - changed commit message to code=20 tools/testing/selftests/net/udpgro.sh | 27 ++++++++++++++----- tools/testing/selftests/net/udpgro_bench.sh | 19 +++++++++++-- tools/testing/selftests/net/udpgro_frglist.sh | 19 +++++++++++-- 3 files changed, 54 insertions(+), 11 deletions(-) diff --git a/tools/testing/selftests/net/udpgro.sh b/tools/testing/selftest= s/net/udpgro.sh index 0c743752669a..04792a315729 100755 --- a/tools/testing/selftests/net/udpgro.sh +++ b/tools/testing/selftests/net/udpgro.sh @@ -24,6 +24,22 @@ cleanup() { } trap cleanup EXIT =20 +wait_local_port_listen() +{ + local port=3D"${1}" + + local port_hex + port_hex=3D"$(printf "%04X" "${port}")" + + local i + for i in $(seq 10); do + ip netns exec "${PEER_NS}" cat /proc/net/udp* | \ + awk "BEGIN {rc=3D1} {if (\$2 ~ /:${port_hex}\$/) {rc=3D0; exit}} END {e= xit rc}" && + break + sleep 0.1 + done +} + cfg_veth() { ip netns add "${PEER_NS}" ip -netns "${PEER_NS}" link set lo up @@ -51,8 +67,7 @@ run_one() { echo "ok" || \ echo "failed" & =20 - # Hack: let bg programs complete the startup - sleep 0.2 + wait_local_port_listen 8000 ./udpgso_bench_tx ${tx_args} ret=3D$? wait $(jobs -p) @@ -97,7 +112,7 @@ run_one_nat() { echo "ok" || \ echo "failed"& =20 - sleep 0.1 + wait_local_port_listen 8000 ./udpgso_bench_tx ${tx_args} ret=3D$? kill -INT $pid @@ -118,11 +133,9 @@ run_one_2sock() { echo "ok" || \ echo "failed" & =20 - # Hack: let bg programs complete the startup - sleep 0.2 + wait_local_port_listen 12345 ./udpgso_bench_tx ${tx_args} -p 12345 - sleep 0.1 - # first UDP GSO socket should be closed at this point + wait_local_port_listen 8000 ./udpgso_bench_tx ${tx_args} ret=3D$? wait $(jobs -p) diff --git a/tools/testing/selftests/net/udpgro_bench.sh b/tools/testing/se= lftests/net/udpgro_bench.sh index 894972877e8b..91833518e80b 100755 --- a/tools/testing/selftests/net/udpgro_bench.sh +++ b/tools/testing/selftests/net/udpgro_bench.sh @@ -16,6 +16,22 @@ cleanup() { } trap cleanup EXIT =20 +wait_local_port_listen() +{ + local port=3D"${1}" + + local port_hex + port_hex=3D"$(printf "%04X" "${port}")" + + local i + for i in $(seq 10); do + ip netns exec "${PEER_NS}" cat /proc/net/udp* | \ + awk "BEGIN {rc=3D1} {if (\$2 ~ /:${port_hex}\$/) {rc=3D0; exit}} END {e= xit rc}" && + break + sleep 0.1 + done +} + run_one() { # use 'rx' as separator between sender args and receiver args local -r all=3D"$@" @@ -40,8 +56,7 @@ run_one() { ip netns exec "${PEER_NS}" ./udpgso_bench_rx ${rx_args} -r & ip netns exec "${PEER_NS}" ./udpgso_bench_rx -t ${rx_args} -r & =20 - # Hack: let bg programs complete the startup - sleep 0.2 + wait_local_port_listen 8000 ./udpgso_bench_tx ${tx_args} } =20 diff --git a/tools/testing/selftests/net/udpgro_frglist.sh b/tools/testing/= selftests/net/udpgro_frglist.sh index 0a6359bed0b9..0aa2068f122c 100755 --- a/tools/testing/selftests/net/udpgro_frglist.sh +++ b/tools/testing/selftests/net/udpgro_frglist.sh @@ -16,6 +16,22 @@ cleanup() { } trap cleanup EXIT =20 +wait_local_port_listen() +{ + local port=3D"${1}" + + local port_hex + port_hex=3D"$(printf "%04X" "${port}")" + + local i + for i in $(seq 10); do + ip netns exec "${PEER_NS}" cat /proc/net/udp* | \ + awk "BEGIN {rc=3D1} {if (\$2 ~ /:${port_hex}\$/) {rc=3D0; exit}} END {e= xit rc}" && + break + sleep 0.1 + done +} + run_one() { # use 'rx' as separator between sender args and receiver args local -r all=3D"$@" @@ -45,8 +61,7 @@ run_one() { echo ${rx_args} ip netns exec "${PEER_NS}" ./udpgso_bench_rx ${rx_args} -r & =20 - # Hack: let bg programs complete the startup - sleep 0.2 + wait_local_port_listen 8000 ./udpgso_bench_tx ${tx_args} } =20 --=20 2.41.0