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
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