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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/tools/testing/selftests/drivers/net/hw/ethtool_lib.sh
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#!/bin/bash

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# SPDX-License-Identifier: GPL-2.0

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speeds_arr_get()

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{

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	cmd='/ETHTOOL_LINK_MODE_[^[:space:]]*_BIT[[:space:]]+=[[:space:]]+/ \

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		{sub(/,$/, "") \

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		sub(/ETHTOOL_LINK_MODE_/,"") \

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		sub(/_BIT/,"") \

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		sub(/_Full/,"/Full") \

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		sub(/_Half/,"/Half");\

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		print "["$1"]="$3}'

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	awk "${cmd}" /usr/include/linux/ethtool.h

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}

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ethtool_set()

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{

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	local cmd="$@"

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	local out=$(ethtool -s $cmd 2>&1 | wc -l)

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	check_err $out "error in configuration. $cmd"

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}

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dev_linkmodes_params_get()

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{

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	local dev=$1; shift

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	local adver=$1; shift

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	local -a linkmodes_params

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	local param_count

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	local arr

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	if (($adver)); then

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		mode="Advertised link modes"

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	else

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		mode="Supported link modes"

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	fi

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	local -a dev_linkmodes=($(dev_speeds_get $dev 1 $adver))

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	for ((i=0; i<${#dev_linkmodes[@]}; i++)); do

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		linkmodes_params[$i]=$(echo -e "${dev_linkmodes[$i]}" | \

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			# Replaces all non numbers with spaces

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			sed -e 's/[^0-9]/ /g' | \

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			# Squeeze spaces in sequence to 1 space

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			tr -s ' ')

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		# Count how many numbers were found in the linkmode

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		param_count=$(echo "${linkmodes_params[$i]}" | wc -w)

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		if [[ $param_count -eq 1 ]]; then

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			linkmodes_params[$i]="${linkmodes_params[$i]} 1"

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		elif [[ $param_count -ge 3 ]]; then

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			arr=(${linkmodes_params[$i]})

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			# Take only first two params

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			linkmodes_params[$i]=$(echo "${arr[@]:0:2}")

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		fi

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	done

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	echo ${linkmodes_params[@]}

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}

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dev_speeds_get()

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{

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	local dev=$1; shift

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	local with_mode=$1; shift

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	local adver=$1; shift

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	local speeds_str

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	if (($adver)); then

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		mode="Advertised link modes"

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	else

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		mode="Supported link modes"

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	fi

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	speeds_str=$(ethtool "$dev" | \

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		# Snip everything before the link modes section.

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		sed -n '/'"$mode"':/,$p' | \

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		# Quit processing the rest at the start of the next section.

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		# When checking, skip the header of this section (hence the 2,).

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		sed -n '2,${/^[\t][^ \t]/q};p' | \

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		# Drop the section header of the current section.

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		cut -d':' -f2)

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	local -a speeds_arr=($speeds_str)

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	if [[ $with_mode -eq 0 ]]; then

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		for ((i=0; i<${#speeds_arr[@]}; i++)); do

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			speeds_arr[$i]=${speeds_arr[$i]%base*}

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		done

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	fi

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	echo ${speeds_arr[@]}

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}

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common_speeds_get()

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{

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	dev1=$1; shift

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	dev2=$1; shift

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	with_mode=$1; shift

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	adver=$1; shift

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	local -a dev1_speeds=($(dev_speeds_get $dev1 $with_mode $adver))

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	local -a dev2_speeds=($(dev_speeds_get $dev2 $with_mode $adver))

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	comm -12 \

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		<(printf '%s\n' "${dev1_speeds[@]}" | sort -u) \

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		<(printf '%s\n' "${dev2_speeds[@]}" | sort -u)

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}

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different_speeds_get()

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{

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	local dev1=$1; shift

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	local dev2=$1; shift

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	local with_mode=$1; shift

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	local adver=$1; shift

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	local -a speeds_arr

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	speeds_arr=($(common_speeds_get $dev1 $dev2 $with_mode $adver))

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	if [[ ${#speeds_arr[@]} < 2 ]]; then

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		check_err 1 "cannot check different speeds. There are not enough speeds"

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	fi

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	echo ${speeds_arr[0]} ${speeds_arr[1]}

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}

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