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-rwxr-xr-xtools/testing/selftests/net/forwarding/ethtool_lib.sh69
1 files changed, 69 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/forwarding/ethtool_lib.sh b/tools/testing/selftests/net/forwarding/ethtool_lib.sh
new file mode 100755
index 000000000000..925d229a59d8
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ethtool_lib.sh
@@ -0,0 +1,69 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+speeds_arr_get()
+{
+ cmd='/ETHTOOL_LINK_MODE_[^[:space:]]*_BIT[[:space:]]+=[[:space:]]+/ \
+ {sub(/,$/, "") \
+ sub(/ETHTOOL_LINK_MODE_/,"") \
+ sub(/_BIT/,"") \
+ sub(/_Full/,"/Full") \
+ sub(/_Half/,"/Half");\
+ print "["$1"]="$3}'
+
+ awk "${cmd}" /usr/include/linux/ethtool.h
+}
+
+ethtool_set()
+{
+ local cmd="$@"
+ local out=$(ethtool -s $cmd 2>&1 | wc -l)
+
+ check_err $out "error in configuration. $cmd"
+}
+
+dev_speeds_get()
+{
+ local dev=$1; shift
+ local with_mode=$1; shift
+ local adver=$1; shift
+ local speeds_str
+
+ if (($adver)); then
+ mode="Advertised link modes"
+ else
+ mode="Supported link modes"
+ fi
+
+ speeds_str=$(ethtool "$dev" | \
+ # Snip everything before the link modes section.
+ sed -n '/'"$mode"':/,$p' | \
+ # Quit processing the rest at the start of the next section.
+ # When checking, skip the header of this section (hence the 2,).
+ sed -n '2,${/^[\t][^ \t]/q};p' | \
+ # Drop the section header of the current section.
+ cut -d':' -f2)
+
+ local -a speeds_arr=($speeds_str)
+ if [[ $with_mode -eq 0 ]]; then
+ for ((i=0; i<${#speeds_arr[@]}; i++)); do
+ speeds_arr[$i]=${speeds_arr[$i]%base*}
+ done
+ fi
+ echo ${speeds_arr[@]}
+}
+
+common_speeds_get()
+{
+ dev1=$1; shift
+ dev2=$1; shift
+ with_mode=$1; shift
+ adver=$1; shift
+
+ local -a dev1_speeds=($(dev_speeds_get $dev1 $with_mode $adver))
+ local -a dev2_speeds=($(dev_speeds_get $dev2 $with_mode $adver))
+
+ comm -12 \
+ <(printf '%s\n' "${dev1_speeds[@]}" | sort -u) \
+ <(printf '%s\n' "${dev2_speeds[@]}" | sort -u)
+}