selftests: forwarding: Add ethtool_lib.sh (646cf7ed) · Commits · 戴 / test

Functions: 1. speeds_arr_get The function returns an array of speed values from /usr/include/linux/ethtool.h The array looks as follows: [10baseT/Half] = 0, [10baseT/Full] = 1, ... 2. ethtool_set: params: cmd The function runs ethtool by cmd (ethtool -s cmd) and checks if there was an error in configuration 3. dev_speeds_get: params: dev, with_mode (0 or 1), adver (0 or 1) return value: Array of supported/Advertised link modes with/without mode * Example 1: speeds_get swp1 0 0 return: 1000 10000 40000 * Example 2: speeds_get swp1 1 1 return: 1000baseKX/Full 10000baseKR/Full 40000baseCR4/Full 4. common_speeds_get: params: dev1, dev2, with_mode (0 or 1), adver (0 or 1) return value: Array of common speeds of dev1 and dev2 * Example: common_speeds_get swp1 swp2 0 0 return: 1000 10000 Assuming that swp1 supports 1000 10000 40000 and swp2 supports 1000 10000 Signed-off-by:

Amit Cohen <amitc@mellanox.com> Signed-off-by:

Ido Schimmel <idosch@mellanox.com> Signed-off-by:

David S. Miller <davem@davemloft.net>

tools/testing/selftests/net/forwarding/ethtool_lib.sh

0 → 100755

+69 −0

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			#!/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)
			}

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