tools/testing/selftests/drivers/net/netdevsim/ethtool-ring.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0-only
   3
   4 source ethtool-common.sh
   5
   6 function get_value {
   7     local query="${SETTINGS_MAP[$1]}"
   8
   9     echo $(ethtool -g $NSIM_NETDEV | \
  10         tail -n +$CURR_SETT_LINE | \
  11         awk -F':' -v pattern="$query:" '$0 ~ pattern {gsub(/[\t ]/, "", $2); print $2}')
  12 }
  13
  14 function update_current_settings {
  15     for key in ${!SETTINGS_MAP[@]}; do
  16         CURRENT_SETTINGS[$key]=$(get_value $key)
  17     done
  18     echo ${CURRENT_SETTINGS[@]}
  19 }
  20
  21 if ! ethtool -h | grep -q set-ring >/dev/null; then
  22     echo "SKIP: No --set-ring support in ethtool"
  23     exit 4
  24 fi
  25
  26 NSIM_NETDEV=$(make_netdev)
  27
  28 set -o pipefail
  29
  30 declare -A SETTINGS_MAP=(
  31     ["rx"]="RX"
  32     ["rx-mini"]="RX Mini"
  33     ["rx-jumbo"]="RX Jumbo"
  34     ["tx"]="TX"
  35 )
  36
  37 declare -A EXPECTED_SETTINGS=(
  38     ["rx"]=""
  39     ["rx-mini"]=""
  40     ["rx-jumbo"]=""
  41     ["tx"]=""
  42 )
  43
  44 declare -A CURRENT_SETTINGS=(
  45     ["rx"]=""
  46     ["rx-mini"]=""
  47     ["rx-jumbo"]=""
  48     ["tx"]=""
  49 )
  50
  51 MAX_VALUE=$((RANDOM % $((2**32-1))))
  52 RING_MAX_LIST=$(ls $NSIM_DEV_DFS/ethtool/ring/)
  53
  54 for ring_max_entry in $RING_MAX_LIST; do
  55     echo $MAX_VALUE > $NSIM_DEV_DFS/ethtool/ring/$ring_max_entry
  56 done
  57
  58 CURR_SETT_LINE=$(ethtool -g $NSIM_NETDEV | grep -i -m1 -n 'Current hardware settings' | cut -f1 -d:)
  59
  60 # populate the expected settings map
  61 for key in ${!SETTINGS_MAP[@]}; do
  62     EXPECTED_SETTINGS[$key]=$(get_value $key)
  63 done
  64
  65 # test
  66 for key in ${!SETTINGS_MAP[@]}; do
  67     value=$((RANDOM % $MAX_VALUE))
  68
  69     ethtool -G $NSIM_NETDEV "$key" "$value"
  70
  71     EXPECTED_SETTINGS[$key]="$value"
  72     expected=${EXPECTED_SETTINGS[@]}
  73     current=$(update_current_settings)
  74
  75     check $? "$current" "$expected"
  76     set +x
  77 done
  78
  79 if [ $num_errors -eq 0 ]; then
  80     echo "PASSED all $((num_passes)) checks"
  81     exit 0
  82 else
  83     echo "FAILED $num_errors/$((num_errors+num_passes)) checks"
  84     exit 1
  85 fi