From 8fcac79270cae2e07e5475b682bc425b71e80595 Mon Sep 17 00:00:00 2001 From: Petr Machata Date: Tue, 18 Apr 2023 14:14:57 +0300 Subject: [PATCH] selftests: forwarding: generalize bail_on_lldpad from mlxsw mlxsw selftests often invoke a bail_on_lldpad() helper to make sure LLDPAD is not running, to prevent conflicts between the QoS configuration applied through TC or DCB command line tool, and the DCB configuration that LLDPAD might apply. This helper might be useful to others. Move the function to lib.sh, and parameterize to make reusable in other contexts. Signed-off-by: Petr Machata Reviewed-by: Danielle Ratson Signed-off-by: Vladimir Oltean Signed-off-by: Jakub Kicinski --- .../drivers/net/mlxsw/qos_headroom.sh | 3 +- .../selftests/drivers/net/mlxsw/qos_lib.sh | 28 ----------------- .../selftests/drivers/net/mlxsw/qos_pfc.sh | 3 +- .../selftests/drivers/net/mlxsw/sch_ets.sh | 3 +- .../drivers/net/mlxsw/sch_red_core.sh | 1 - .../drivers/net/mlxsw/sch_red_ets.sh | 2 +- .../drivers/net/mlxsw/sch_red_root.sh | 2 +- .../drivers/net/mlxsw/sch_tbf_ets.sh | 4 +-- .../drivers/net/mlxsw/sch_tbf_prio.sh | 4 +-- .../drivers/net/mlxsw/sch_tbf_root.sh | 4 +-- tools/testing/selftests/net/forwarding/lib.sh | 31 +++++++++++++++++++ 11 files changed, 39 insertions(+), 46 deletions(-) diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_headroom.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_headroom.sh index 3569ff45f7d56..88162b4027c0a 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/qos_headroom.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/qos_headroom.sh @@ -18,7 +18,6 @@ lib_dir=$(dirname $0)/../../../net/forwarding NUM_NETIFS=0 source $lib_dir/lib.sh source $lib_dir/devlink_lib.sh -source qos_lib.sh swp=$NETIF_NO_CABLE @@ -371,7 +370,7 @@ test_tc_int_buf() tc qdisc delete dev $swp root } -bail_on_lldpad +bail_on_lldpad "configure DCB" "configure Qdiscs" trap cleanup EXIT setup_wait diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_lib.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_lib.sh index faa51012cdaca..5ad092b9bf10a 100644 --- a/tools/testing/selftests/drivers/net/mlxsw/qos_lib.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/qos_lib.sh @@ -54,31 +54,3 @@ measure_rate() echo $ir $er return $ret } - -bail_on_lldpad() -{ - if systemctl is-active --quiet lldpad; then - - cat >/dev/stderr <<-EOF - WARNING: lldpad is running - - lldpad will likely configure DCB, and this test will - configure Qdiscs. mlxsw does not support both at the - same time, one of them is arbitrarily going to overwrite - the other. That will cause spurious failures (or, - unlikely, passes) of this test. - EOF - - if [[ -z $ALLOW_LLDPAD ]]; then - cat >/dev/stderr <<-EOF - - If you want to run the test anyway, please set - an environment variable ALLOW_LLDPAD to a - non-empty string. - EOF - exit 1 - else - return - fi - fi -} diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_pfc.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_pfc.sh index f9858e221996c..42ce602d8d492 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/qos_pfc.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/qos_pfc.sh @@ -79,7 +79,6 @@ lib_dir=$(dirname $0)/../../../net/forwarding NUM_NETIFS=6 source $lib_dir/lib.sh source $lib_dir/devlink_lib.sh -source qos_lib.sh _1KB=1000 _100KB=$((100 * _1KB)) @@ -393,7 +392,7 @@ test_qos_pfc() log_test "PFC" } -bail_on_lldpad +bail_on_lldpad "configure DCB" "configure Qdiscs" trap cleanup EXIT setup_prepare diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_ets.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_ets.sh index ceaa76b17a43c..139175fd03e72 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/sch_ets.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/sch_ets.sh @@ -5,7 +5,6 @@ lib_dir=$(dirname $0)/../../../net/forwarding source $lib_dir/sch_ets_core.sh source $lib_dir/devlink_lib.sh -source qos_lib.sh ALL_TESTS=" ping_ipv4 @@ -78,5 +77,5 @@ collect_stats() done } -bail_on_lldpad +bail_on_lldpad "configure DCB" "configure Qdiscs" ets_run diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_red_core.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_red_core.sh index 45b41b8f32322..299e06a5808c2 100644 --- a/tools/testing/selftests/drivers/net/mlxsw/sch_red_core.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/sch_red_core.sh @@ -74,7 +74,6 @@ lib_dir=$(dirname $0)/../../../net/forwarding source $lib_dir/lib.sh source $lib_dir/devlink_lib.sh source mlxsw_lib.sh -source qos_lib.sh ipaddr() { diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_red_ets.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_red_ets.sh index 0d01c7cd82a18..8ecddafa79b3f 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/sch_red_ets.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/sch_red_ets.sh @@ -166,7 +166,7 @@ ecn_mirror_test() uninstall_qdisc } -bail_on_lldpad +bail_on_lldpad "configure DCB" "configure Qdiscs" trap cleanup EXIT setup_prepare diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_red_root.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_red_root.sh index 860205338e6fb..159108d02895a 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/sch_red_root.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/sch_red_root.sh @@ -73,7 +73,7 @@ red_mirror_test() uninstall_qdisc } -bail_on_lldpad +bail_on_lldpad "configure DCB" "configure Qdiscs" trap cleanup EXIT setup_prepare diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_ets.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_ets.sh index b9b4cdf14ceb0..ecc3664376b3b 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_ets.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_ets.sh @@ -1,11 +1,9 @@ #!/bin/bash # SPDX-License-Identifier: GPL-2.0 -source qos_lib.sh - sch_tbf_pre_hook() { - bail_on_lldpad + bail_on_lldpad "configure DCB" "configure Qdiscs" } lib_dir=$(dirname $0)/../../../net/forwarding diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_prio.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_prio.sh index dff9810ee04fb..2e0a4efb17033 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_prio.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_prio.sh @@ -1,11 +1,9 @@ #!/bin/bash # SPDX-License-Identifier: GPL-2.0 -source qos_lib.sh - sch_tbf_pre_hook() { - bail_on_lldpad + bail_on_lldpad "configure DCB" "configure Qdiscs" } lib_dir=$(dirname $0)/../../../net/forwarding diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_root.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_root.sh index 75406bd7036e1..6679a338dfc45 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_root.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_root.sh @@ -1,11 +1,9 @@ #!/bin/bash # SPDX-License-Identifier: GPL-2.0 -source qos_lib.sh - sch_tbf_pre_hook() { - bail_on_lldpad + bail_on_lldpad "configure DCB" "configure Qdiscs" } lib_dir=$(dirname $0)/../../../net/forwarding diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh index d47499ba81c7f..efd48e1cadd2d 100755 --- a/tools/testing/selftests/net/forwarding/lib.sh +++ b/tools/testing/selftests/net/forwarding/lib.sh @@ -1887,3 +1887,34 @@ mldv1_done_get() payload_template_expand_checksum "$hbh$icmpv6" $checksum } + +bail_on_lldpad() +{ + local reason1="$1"; shift + local reason2="$1"; shift + + if systemctl is-active --quiet lldpad; then + + cat >/dev/stderr <<-EOF + WARNING: lldpad is running + + lldpad will likely $reason1, and this test will + $reason2. Both are not supported at the same time, + one of them is arbitrarily going to overwrite the + other. That will cause spurious failures (or, unlikely, + passes) of this test. + EOF + + if [[ -z $ALLOW_LLDPAD ]]; then + cat >/dev/stderr <<-EOF + + If you want to run the test anyway, please set + an environment variable ALLOW_LLDPAD to a + non-empty string. + EOF + exit 1 + else + return + fi + fi +} -- 2.30.2