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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/tools/testing/selftests/drivers/net/netdevsim/ethtool-fec.sh
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#!/bin/bash

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# SPDX-License-Identifier: GPL-2.0-only

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source ethtool-common.sh

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NSIM_NETDEV=$(make_netdev)

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[ a$ETHTOOL == a ] && ETHTOOL=ethtool

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set -o pipefail

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# Since commit 2b3ddcb35357 ("ethtool: fec: Change the prompt ...")

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# in ethtool CLI the Configured lines start with Supported/Configured.

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configured=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2 | head -1 | cut -d' ' -f1)

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# netdevsim starts out with None/None

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s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)

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check $? "$s" "$configured FEC encodings: None

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Active FEC encoding: None"

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# Test Auto

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$ETHTOOL --set-fec $NSIM_NETDEV encoding auto

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check $?

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s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)

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check $? "$s" "$configured FEC encodings: Auto

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Active FEC encoding: Off"

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# Test case in-sensitivity

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for o in off Off OFF; do

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    $ETHTOOL --set-fec $NSIM_NETDEV encoding $o

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    check $?

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    s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)

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    check $? "$s" "$configured FEC encodings: Off

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Active FEC encoding: Off"

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done

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for o in BaseR baser BAser; do

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    $ETHTOOL --set-fec $NSIM_NETDEV encoding $o

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    check $?

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    s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)

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    check $? "$s" "$configured FEC encodings: BaseR

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Active FEC encoding: BaseR"

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done

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for o in llrs rs; do

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    $ETHTOOL --set-fec $NSIM_NETDEV encoding $o

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    check $?

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    s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)

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    check $? "$s" "$configured FEC encodings: ${o^^}

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Active FEC encoding: ${o^^}"

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done

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# Test multiple bits

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$ETHTOOL --set-fec $NSIM_NETDEV encoding rs llrs

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check $?

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s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)

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check $? "$s" "$configured FEC encodings: RS LLRS

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Active FEC encoding: LLRS"

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$ETHTOOL --set-fec $NSIM_NETDEV encoding rs off auto

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check $?

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s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)

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check $? "$s" "$configured FEC encodings: Auto Off RS

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Active FEC encoding: RS"

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# Make sure other link modes are rejected

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$ETHTOOL --set-fec $NSIM_NETDEV encoding FIBRE 2>/dev/null

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check $? '' '' 1

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$ETHTOOL --set-fec $NSIM_NETDEV encoding bla-bla-bla 2>/dev/null

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check $? '' '' 1

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# Try JSON

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$ETHTOOL --json --show-fec $NSIM_NETDEV | jq empty >>/dev/null 2>&1

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if [ $? -eq 0 ]; then

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    $ETHTOOL --set-fec $NSIM_NETDEV encoding auto

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    check $?

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    s=$($ETHTOOL --json --show-fec $NSIM_NETDEV | jq '.[].config[]')

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    check $? "$s" '"Auto"'

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    s=$($ETHTOOL --json --show-fec $NSIM_NETDEV | jq '.[].active[]')

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    check $? "$s" '"Off"'

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    $ETHTOOL --set-fec $NSIM_NETDEV encoding auto RS

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    check $?

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    s=$($ETHTOOL --json --show-fec $NSIM_NETDEV | jq '.[].config[]')

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    check $? "$s" '"Auto"

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"RS"'

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    s=$($ETHTOOL --json --show-fec $NSIM_NETDEV | jq '.[].active[]')

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    check $? "$s" '"RS"'

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fi

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# Test error injection

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echo 11 > $NSIM_DEV_DFS/ethtool/get_err

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$ETHTOOL --show-fec $NSIM_NETDEV >>/dev/null 2>&1

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check $? '' '' 1

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echo 0 > $NSIM_DEV_DFS/ethtool/get_err

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echo 11 > $NSIM_DEV_DFS/ethtool/set_err

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$ETHTOOL --show-fec $NSIM_NETDEV  >>/dev/null 2>&1

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check $?

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$ETHTOOL --set-fec $NSIM_NETDEV encoding RS 2>/dev/null

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check $? '' '' 1

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if [ $num_errors -eq 0 ]; then

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    echo "PASSED all $((num_passes)) checks"

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    exit 0

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else

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    echo "FAILED $num_errors/$((num_errors+num_passes)) checks"

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    exit 1

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fi

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