68 lines
1.1 KiB
Bash
68 lines
1.1 KiB
Bash
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0-or-later
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set -e
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TESTNAME=set_pcie_speed
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declare -a PCIELINKSPEED=(
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"2.5 GT/s PCIe"
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"5.0 GT/s PCIe"
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"8.0 GT/s PCIe"
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"16.0 GT/s PCIe"
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"32.0 GT/s PCIe"
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"64.0 GT/s PCIe"
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)
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# Kselftest framework requirement - SKIP code is 4.
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ksft_skip=4
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retval=0
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coolingdev="$1"
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statefile="$coolingdev/cur_state"
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maxfile="$coolingdev/max_state"
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linkspeedfile="$2"
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oldstate=`cat $statefile`
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maxstate=`cat $maxfile`
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set_state()
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{
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local state=$1
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local linkspeed
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local expected_linkspeed
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echo $state > $statefile
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sleep 1
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linkspeed="`cat $linkspeedfile`"
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expected_linkspeed=$((maxstate-state))
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expected_str="${PCIELINKSPEED[$expected_linkspeed]}"
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if [ ! "${expected_str}" = "${linkspeed}" ]; then
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echo "$TESTNAME failed: expected: ${expected_str}; got ${linkspeed}"
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retval=1
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fi
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}
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cleanup_skip ()
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{
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set_state $oldstate
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exit $ksft_skip
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}
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trap cleanup_skip EXIT
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echo "$TESTNAME: testing states $maxstate .. $oldstate with $coolingdev"
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for i in $(seq $maxstate -1 $oldstate); do
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set_state "$i"
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done
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trap EXIT
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if [ $retval -eq 0 ]; then
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echo "$TESTNAME [PASS]"
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else
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echo "$TESTNAME [FAIL]"
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fi
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exit $retval
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