diff options
author | Jakub Kicinski <kuba@kernel.org> | 2020-09-14 17:11:55 -0700 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2020-09-15 13:26:28 -0700 |
commit | 242aaf03dc9be30027d3159a13b935856dab3ba0 (patch) | |
tree | 99398cc02863e70dabadf54418b7e0a239fb541a /tools | |
parent | ff1f7c17fb20183a4ab5ce92bdb3f3675fb4f751 (diff) |
selftests: add a test for ethtool pause stats
Make sure the empty nest is reported even without stats.
Make sure reporting only selected stats works fine.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools')
-rwxr-xr-x | tools/testing/selftests/drivers/net/netdevsim/ethtool-pause.sh | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/tools/testing/selftests/drivers/net/netdevsim/ethtool-pause.sh b/tools/testing/selftests/drivers/net/netdevsim/ethtool-pause.sh new file mode 100755 index 000000000000..dd6ad6501c9c --- /dev/null +++ b/tools/testing/selftests/drivers/net/netdevsim/ethtool-pause.sh @@ -0,0 +1,108 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0-only + +NSIM_ID=$((RANDOM % 1024)) +NSIM_DEV_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_ID +NSIM_DEV_DFS=/sys/kernel/debug/netdevsim/netdevsim$NSIM_ID +NSIM_NETDEV= +num_passes=0 +num_errors=0 + +function cleanup_nsim { + if [ -e $NSIM_DEV_SYS ]; then + echo $NSIM_ID > /sys/bus/netdevsim/del_device + fi +} + +function cleanup { + cleanup_nsim +} + +trap cleanup EXIT + +function get_netdev_name { + local -n old=$1 + + new=$(ls /sys/class/net) + + for netdev in $new; do + for check in $old; do + [ $netdev == $check ] && break + done + + if [ $netdev != $check ]; then + echo $netdev + break + fi + done +} + +function check { + local code=$1 + local str=$2 + local exp_str=$3 + + if [ $code -ne 0 ]; then + ((num_errors++)) + return + fi + + if [ "$str" != "$exp_str" ]; then + echo -e "Expected: '$exp_str', got '$str'" + ((num_errors++)) + return + fi + + ((num_passes++)) +} + +# Bail if ethtool is too old +if ! ethtool -h | grep include-stat 2>&1 >/dev/null; then + echo "SKIP: No --include-statistics support in ethtool" + exit 4 +fi + +# Make a netdevsim +old_netdevs=$(ls /sys/class/net) + +modprobe netdevsim +echo $NSIM_ID > /sys/bus/netdevsim/new_device + +NSIM_NETDEV=`get_netdev_name old_netdevs` + +set -o pipefail + +echo n > $NSIM_DEV_DFS/ethtool/pause/report_stats_tx +echo n > $NSIM_DEV_DFS/ethtool/pause/report_stats_rx + +s=$(ethtool --json -a $NSIM_NETDEV | jq '.[].statistics') +check $? "$s" "null" + +s=$(ethtool -I --json -a $NSIM_NETDEV | jq '.[].statistics') +check $? "$s" "{}" + +echo y > $NSIM_DEV_DFS/ethtool/pause/report_stats_tx + +s=$(ethtool -I --json -a $NSIM_NETDEV | jq '.[].statistics | length') +check $? "$s" "1" + +s=$(ethtool -I --json -a $NSIM_NETDEV | jq '.[].statistics.tx_pause_frames') +check $? "$s" "2" + +echo y > $NSIM_DEV_DFS/ethtool/pause/report_stats_rx + +s=$(ethtool -I --json -a $NSIM_NETDEV | jq '.[].statistics | length') +check $? "$s" "2" + +s=$(ethtool -I --json -a $NSIM_NETDEV | jq '.[].statistics.rx_pause_frames') +check $? "$s" "1" +s=$(ethtool -I --json -a $NSIM_NETDEV | jq '.[].statistics.tx_pause_frames') +check $? "$s" "2" + +if [ $num_errors -eq 0 ]; then + echo "PASSED all $((num_passes)) checks" + exit 0 +else + echo "FAILED $num_errors/$((num_errors+num_passes)) checks" + exit 1 +fi |