1 files changed, 64 insertions, 0 deletions
diff --git a/tools/testing/selftests/drivers/net/mlxsw/mlxsw_lib.sh b/tools/testing/selftests/drivers/net/mlxsw/mlxsw_lib.sh
index cbe50f260a40..6369927e9c37 100644
--- a/tools/testing/selftests/drivers/net/mlxsw/mlxsw_lib.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/mlxsw_lib.sh
@@ -11,3 +11,67 @@ if [[ ! -v MLXSW_CHIP ]]; then
 		exit 1
 	fi
 fi
+
+MLXSW_SPECTRUM_REV=$(case $MLXSW_CHIP in
+			     mlxsw_spectrum)
+				     echo 1 ;;
+			     mlxsw_spectrum*)
+				     echo ${MLXSW_CHIP#mlxsw_spectrum} ;;
+			     *)
+				     echo "Couldn't determine Spectrum chip revision." \
+					  > /dev/stderr ;;
+		     esac)
+
+mlxsw_on_spectrum()
+{
+	local rev=$1; shift
+	local op="=="
+	local rev2=${rev%+}
+
+	if [[ $rev2 != $rev ]]; then
+		op=">="
+	fi
+
+	((MLXSW_SPECTRUM_REV $op rev2))
+}
+
+__mlxsw_only_on_spectrum()
+{
+	local rev=$1; shift
+	local caller=$1; shift
+	local src=$1; shift
+
+	if ! mlxsw_on_spectrum "$rev"; then
+		log_test_skip $src:$caller "(Spectrum-$rev only)"
+		return 1
+	fi
+}
+
+mlxsw_only_on_spectrum()
+{
+	local caller=${FUNCNAME[1]}
+	local src=${BASH_SOURCE[1]}
+	local rev
+
+	for rev in "$@"; do
+		if __mlxsw_only_on_spectrum "$rev" "$caller" "$src"; then
+			return 0
+		fi
+	done
+
+	return 1
+}
+
+mlxsw_max_descriptors_get()
+{
+	local spectrum_rev=$MLXSW_SPECTRUM_REV
+
+	case $spectrum_rev in
+	1) echo 81920 ;;
+	2) echo 136960 ;;
+	3) echo 204800 ;;
+	4) echo 220000 ;;
+	*) echo "Unknown max descriptors for chip revision." > /dev/stderr
+	   return 1 ;;
+	esac
+}