tools/testing/selftests/drivers/net/hw/ethtool_lib.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 speeds_arr_get()
   5 {
   6         cmd='/ETHTOOL_LINK_MODE_[^[:space:]]*_BIT[[:space:]]+=[[:space:]]+/ \
   7                 {sub(/,$/, "") \
   8                 sub(/ETHTOOL_LINK_MODE_/,"") \
   9                 sub(/_BIT/,"") \
  10                 sub(/_Full/,"/Full") \
  11                 sub(/_Half/,"/Half");\
  12                 print "["$1"]="$3}'
  13
  14         awk "${cmd}" /usr/include/linux/ethtool.h
  15 }
  16
  17 ethtool_set()
  18 {
  19         local cmd="$@"
  20         local out=$(ethtool -s $cmd 2>&1 | wc -l)
  21
  22         check_err $out "error in configuration. $cmd"
  23 }
  24
  25 dev_linkmodes_params_get()
  26 {
  27         local dev=$1; shift
  28         local adver=$1; shift
  29         local -a linkmodes_params
  30         local param_count
  31         local arr
  32
  33         if (($adver)); then
  34                 mode="Advertised link modes"
  35         else
  36                 mode="Supported link modes"
  37         fi
  38
  39         local -a dev_linkmodes=($(dev_speeds_get $dev 1 $adver))
  40         for ((i=0; i<${#dev_linkmodes[@]}; i++)); do
  41                 linkmodes_params[$i]=$(echo -e "${dev_linkmodes[$i]}" | \
  42                         # Replaces all non numbers with spaces
  43                         sed -e 's/[^0-9]/ /g' | \
  44                         # Squeeze spaces in sequence to 1 space
  45                         tr -s ' ')
  46                 # Count how many numbers were found in the linkmode
  47                 param_count=$(echo "${linkmodes_params[$i]}" | wc -w)
  48                 if [[ $param_count -eq 1 ]]; then
  49                         linkmodes_params[$i]="${linkmodes_params[$i]} 1"
  50                 elif [[ $param_count -ge 3 ]]; then
  51                         arr=(${linkmodes_params[$i]})
  52                         # Take only first two params
  53                         linkmodes_params[$i]=$(echo "${arr[@]:0:2}")
  54                 fi
  55         done
  56         echo ${linkmodes_params[@]}
  57 }
  58
  59 dev_speeds_get()
  60 {
  61         local dev=$1; shift
  62         local with_mode=$1; shift
  63         local adver=$1; shift
  64         local speeds_str
  65
  66         if (($adver)); then
  67                 mode="Advertised link modes"
  68         else
  69                 mode="Supported link modes"
  70         fi
  71
  72         speeds_str=$(ethtool "$dev" | \
  73                 # Snip everything before the link modes section.
  74                 sed -n '/'"$mode"':/,$p' | \
  75                 # Quit processing the rest at the start of the next section.
  76                 # When checking, skip the header of this section (hence the 2,).
  77                 sed -n '2,${/^[\t][^ \t]/q};p' | \
  78                 # Drop the section header of the current section.
  79                 cut -d':' -f2)
  80
  81         local -a speeds_arr=($speeds_str)
  82         if [[ $with_mode -eq 0 ]]; then
  83                 for ((i=0; i<${#speeds_arr[@]}; i++)); do
  84                         speeds_arr[$i]=${speeds_arr[$i]%base*}
  85                 done
  86         fi
  87         echo ${speeds_arr[@]}
  88 }
  89
  90 common_speeds_get()
  91 {
  92         dev1=$1; shift
  93         dev2=$1; shift
  94         with_mode=$1; shift
  95         adver=$1; shift
  96
  97         local -a dev1_speeds=($(dev_speeds_get $dev1 $with_mode $adver))
  98         local -a dev2_speeds=($(dev_speeds_get $dev2 $with_mode $adver))
  99
 100         comm -12 \
 101                 <(printf '%s\n' "${dev1_speeds[@]}" | sort -u) \
 102                 <(printf '%s\n' "${dev2_speeds[@]}" | sort -u)
 103 }
 104
 105 different_speeds_get()
 106 {
 107         local dev1=$1; shift
 108         local dev2=$1; shift
 109         local with_mode=$1; shift
 110         local adver=$1; shift
 111
 112         local -a speeds_arr
 113
 114         speeds_arr=($(common_speeds_get $dev1 $dev2 $with_mode $adver))
 115         if [[ ${#speeds_arr[@]} < 2 ]]; then
 116                 check_err 1 "cannot check different speeds. There are not enough speeds"
 117         fi
 118
 119         echo ${speeds_arr[0]} ${speeds_arr[1]}
 120 }