net/netdevsim/ethtool-coalesce.sh

0001 #!/bin/bash
0002 # SPDX-License-Identifier: GPL-2.0-only
0003
0004 source ethtool-common.sh
0005
0006 function get_value {
0007     local query="${SETTINGS_MAP[$1]}"
0008
0009     echo $(ethtool -c $NSIM_NETDEV | \
0010         awk -F':' -v pattern="$query:" '$0 ~ pattern {gsub(/[ \t]/, "", $2); print $2}')
0011 }
0012
0013 function update_current_settings {
0014     for key in ${!SETTINGS_MAP[@]}; do
0015         CURRENT_SETTINGS[$key]=$(get_value $key)
0016     done
0017     echo ${CURRENT_SETTINGS[@]}
0018 }
0019
0020 if ! ethtool -h | grep -q coalesce; then
0021     echo "SKIP: No --coalesce support in ethtool"
0022     exit 4
0023 fi
0024
0025 NSIM_NETDEV=$(make_netdev)
0026
0027 set -o pipefail
0028
0029 declare -A SETTINGS_MAP=(
0030     ["rx-frames-low"]="rx-frame-low"
0031     ["tx-frames-low"]="tx-frame-low"
0032     ["rx-frames-high"]="rx-frame-high"
0033     ["tx-frames-high"]="tx-frame-high"
0034     ["rx-usecs"]="rx-usecs"
0035     ["rx-frames"]="rx-frames"
0036     ["rx-usecs-irq"]="rx-usecs-irq"
0037     ["rx-frames-irq"]="rx-frames-irq"
0038     ["tx-usecs"]="tx-usecs"
0039     ["tx-frames"]="tx-frames"
0040     ["tx-usecs-irq"]="tx-usecs-irq"
0041     ["tx-frames-irq"]="tx-frames-irq"
0042     ["stats-block-usecs"]="stats-block-usecs"
0043     ["pkt-rate-low"]="pkt-rate-low"
0044     ["rx-usecs-low"]="rx-usecs-low"
0045     ["tx-usecs-low"]="tx-usecs-low"
0046     ["pkt-rate-high"]="pkt-rate-high"
0047     ["rx-usecs-high"]="rx-usecs-high"
0048     ["tx-usecs-high"]="tx-usecs-high"
0049     ["sample-interval"]="sample-interval"
0050 )
0051
0052 declare -A CURRENT_SETTINGS=(
0053     ["rx-frames-low"]=""
0054     ["tx-frames-low"]=""
0055     ["rx-frames-high"]=""
0056     ["tx-frames-high"]=""
0057     ["rx-usecs"]=""
0058     ["rx-frames"]=""
0059     ["rx-usecs-irq"]=""
0060     ["rx-frames-irq"]=""
0061     ["tx-usecs"]=""
0062     ["tx-frames"]=""
0063     ["tx-usecs-irq"]=""
0064     ["tx-frames-irq"]=""
0065     ["stats-block-usecs"]=""
0066     ["pkt-rate-low"]=""
0067     ["rx-usecs-low"]=""
0068     ["tx-usecs-low"]=""
0069     ["pkt-rate-high"]=""
0070     ["rx-usecs-high"]=""
0071     ["tx-usecs-high"]=""
0072     ["sample-interval"]=""
0073 )
0074
0075 declare -A EXPECTED_SETTINGS=(
0076     ["rx-frames-low"]=""
0077     ["tx-frames-low"]=""
0078     ["rx-frames-high"]=""
0079     ["tx-frames-high"]=""
0080     ["rx-usecs"]=""
0081     ["rx-frames"]=""
0082     ["rx-usecs-irq"]=""
0083     ["rx-frames-irq"]=""
0084     ["tx-usecs"]=""
0085     ["tx-frames"]=""
0086     ["tx-usecs-irq"]=""
0087     ["tx-frames-irq"]=""
0088     ["stats-block-usecs"]=""
0089     ["pkt-rate-low"]=""
0090     ["rx-usecs-low"]=""
0091     ["tx-usecs-low"]=""
0092     ["pkt-rate-high"]=""
0093     ["rx-usecs-high"]=""
0094     ["tx-usecs-high"]=""
0095     ["sample-interval"]=""
0096 )
0097
0098 # populate the expected settings map
0099 for key in ${!SETTINGS_MAP[@]}; do
0100     EXPECTED_SETTINGS[$key]=$(get_value $key)
0101 done
0102
0103 # test
0104 for key in ${!SETTINGS_MAP[@]}; do
0105     value=$((RANDOM % $((2**32-1))))
0106
0107     ethtool -C $NSIM_NETDEV "$key" "$value"
0108
0109     EXPECTED_SETTINGS[$key]="$value"
0110     expected=${EXPECTED_SETTINGS[@]}
0111     current=$(update_current_settings)
0112
0113     check $? "$current" "$expected"
0114     set +x
0115 done
0116
0117 # bool settings which ethtool displays on the same line
0118 ethtool -C $NSIM_NETDEV adaptive-rx on
0119 s=$(ethtool -c $NSIM_NETDEV | grep -q "Adaptive RX: on  TX: off")
0120 check $? "$s" ""
0121
0122 ethtool -C $NSIM_NETDEV adaptive-tx on
0123 s=$(ethtool -c $NSIM_NETDEV | grep -q "Adaptive RX: on  TX: on")
0124 check $? "$s" ""
0125
0126 if [ $num_errors -eq 0 ]; then
0127     echo "PASSED all $((num_passes)) checks"
0128     exit 0
0129 else
0130     echo "FAILED $num_errors/$((num_errors+num_passes)) checks"
0131     exit 1
0132 fi