tools/testing/selftests/net/forwarding/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_speeds_get()
  26 {
  27         local dev=$1; shift
  28         local with_mode=$1; shift
  29         local adver=$1; shift
  30         local speeds_str
  31
  32         if (($adver)); then
  33                 mode="Advertised link modes"
  34         else
  35                 mode="Supported link modes"
  36         fi
  37
  38         speeds_str=$(ethtool "$dev" | \
  39                 # Snip everything before the link modes section.
  40                 sed -n '/'"$mode"':/,$p' | \
  41                 # Quit processing the rest at the start of the next section.
  42                 # When checking, skip the header of this section (hence the 2,).
  43                 sed -n '2,${/^[\t][^ \t]/q};p' | \
  44                 # Drop the section header of the current section.
  45                 cut -d':' -f2)
  46
  47         local -a speeds_arr=($speeds_str)
  48         if [[ $with_mode -eq 0 ]]; then
  49                 for ((i=0; i<${#speeds_arr[@]}; i++)); do
  50                         speeds_arr[$i]=${speeds_arr[$i]%base*}
  51                 done
  52         fi
  53         echo ${speeds_arr[@]}
  54 }
  55
  56 common_speeds_get()
  57 {
  58         dev1=$1; shift
  59         dev2=$1; shift
  60         with_mode=$1; shift
  61         adver=$1; shift
  62
  63         local -a dev1_speeds=($(dev_speeds_get $dev1 $with_mode $adver))
  64         local -a dev2_speeds=($(dev_speeds_get $dev2 $with_mode $adver))
  65
  66         comm -12 \
  67                 <(printf '%s\n' "${dev1_speeds[@]}" | sort -u) \
  68                 <(printf '%s\n' "${dev2_speeds[@]}" | sort -u)
  69 }
  70
  71 different_speeds_get()
  72 {
  73         local dev1=$1; shift
  74         local dev2=$1; shift
  75         local with_mode=$1; shift
  76         local adver=$1; shift
  77
  78         local -a speeds_arr
  79
  80         speeds_arr=($(common_speeds_get $dev1 $dev2 $with_mode $adver))
  81         if [[ ${#speeds_arr[@]} < 2 ]]; then
  82                 check_err 1 "cannot check different speeds. There are not enough speeds"
  83         fi
  84
  85         echo ${speeds_arr[0]} ${speeds_arr[1]}
  86 }