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 }
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