Commit cd8e4165 authored by Maciej Szwed's avatar Maciej Szwed Committed by Jim Harris
Browse files

tests: Create HW hotplug test 



This patch introduces new hotplug test which uses
PCIe interposer capable of physically connecting and
disconnecting NVMe drive from the system. It uses
custom build HW based on mircrocontroller to which
we connect and through which we send command to NVMe
interposer to connect or disconnect NVMe drive from
test machine. Scenario of this test is similar to the
scenario we are using for software hotplug test with VM.
Parameters for the test are IP address of the microcontroller
and GPIO pin to which the interposer is connected.

Signed-off-by: default avatarMaciej Szwed <maciej.szwed@intel.com>
Change-Id: I3610dadfd23521da2c90fd83e6895d942b3f66df
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/462470


Reviewed-by: default avatarKarol Latecki <karol.latecki@intel.com>
Reviewed-by: default avatarPaul Luse <paul.e.luse@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
parent 10d8b7c3

test/nvme/hw_hotplug.sh

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#!/usr/bin/env bash



testdir=$(readlink -f $(dirname $0))

rootdir=$(readlink -f $testdir/../..)

source $rootdir/test/common/autotest_common.sh



function insert_device() {

	ssh root@$ip 'Beetle --SetGpio "$gpio" HIGH'

	waitforblk $name

	DRIVER_OVERRIDE=$driver $rootdir/scripts/setup.sh

}



function remove_device() {

	ssh root@$ip 'Beetle --SetGpio "$gpio" LOW'

}



ip=$1

gpio=$2

driver=$3

declare -i io_time=5

declare -i kernel_hotplug_time=7



timing_enter hotplug_hw



timing_enter hotplug_hw_cfg



# Configure microcontroller

ssh root@$ip 'Beetle --SetGpioDirection "$gpio" OUT'



# Get blk dev name connected to interposer

ssh root@$ip 'Beetle --SetGpio "$gpio" HIGH'

sleep $kernel_hotplug_time

$rootdir/scripts/setup.sh reset

blk_list1=$(lsblk -d --output NAME | grep "^nvme")

remove_device

sleep $kernel_hotplug_time

blk_list2=$(lsblk -d --output NAME | grep "^nvme") || true

name=${blk_list1#"$blk_list2"}



insert_device



timing_exit hotplug_hw_cfg



timing_enter hotplug_hw_test



$rootdir/examples/nvme/hotplug/hotplug -i 0 -t 100 -n 2 -r 2 2>&1 | tee -a log.txt &

example_pid=$!

trap "killprocess $example_pid; exit 1" SIGINT SIGTERM EXIT



i=0

while ! grep "Starting I/O" log.txt; do

	[ $i -lt 20 ] || break

	i=$(($i+1))

	sleep 1

done



if ! grep "Starting I/O" log.txt; then

	return 1

fi



# Add and remove NVMe with delays between to give some time for IO to proceed

remove_device

sleep $io_time

insert_device

sleep $io_time

remove_device

sleep $io_time

insert_device

sleep $io_time



timing_enter wait_for_example

wait $example_pid

timing_exit wait_for_example



trap - SIGINT SIGTERM EXIT



report_test_completion "nvme_hotplug_hw"

timing_exit hotplug_hw_test



timing_exit hotplug_hw