Commit 70c2bd88 authored by Kozlowski Mateusz's avatar Kozlowski Mateusz Committed by Ben Walker
Browse files

FTL: Add restore tests 



Additional tests testing clean shutdown/startup capability (both fast
and slow shutdown paths). Additionally FIO tests can now run on the same
FTL instance, instead of creating a new one for each test.

Signed-off-by: default avatarKozlowski Mateusz <mateusz.kozlowski@intel.com>
Signed-off-by: default avatarArtur Paszkiewicz <artur.paszkiewicz@intel.com>
Change-Id: I20cbd2fe0303b3e75bf7efca1623e223e2611f17
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13365


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
parent 86619848

test/ftl/fio.sh

+7 −3
Original line number Diff line number Diff line
@@ -52,7 +52,12 @@ fi 


l2p_dram_size_mb=$(($(get_bdev_size $split_bdev) * l2p_percentage / 100 / 1024))



if [ -z "$uuid" ]; then

	# First FTL creation takes longer due to scrubbing, so extending the timeout

	$rpc_py -t $timeout bdev_ftl_create -b ftl0 -d $split_bdev -c $nv_cache --l2p_dram_limit $l2p_dram_size_mb

else

	$rpc_py bdev_ftl_create -b ftl0 -d $split_bdev -c $nv_cache -u $uuid --l2p_dram_limit $l2p_dram_size_mb

fi



waitforbdev ftl0
@@ -60,8 +65,7 @@ waitforbdev ftl0 
	echo '{"subsystems": ['

	$rpc_py save_subsystem_config -n bdev

	echo ']}'

	# Temporary hack so tests are always creating new instance, until clean restore is reintroduced later

) | sed 's/"uuid": "[a-f0-9\-]\{36\}"/"uuid": "00000000-0000-0000-0000-000000000000"/g' > $FTL_JSON_CONF

) > $FTL_JSON_CONF



killprocess $svcpid

trap - SIGINT SIGTERM EXIT

test/ftl/ftl.sh

+2 −0
Original line number Diff line number Diff line
@@ -70,6 +70,8 @@ fi 
if [[ -z $SPDK_TEST_FTL_NIGHTLY ]]; then

	run_test "ftl_fio_basic" $testdir/fio.sh $device $nv_cache basic

	run_test "ftl_bdevperf" $testdir/bdevperf.sh $device $nv_cache

	run_test "ftl_restore" $testdir/restore.sh -c $nv_cache $device

	run_test "ftl_restore_fast" $testdir/restore.sh -f -c $nv_cache $device

fi



if [ $SPDK_TEST_FTL_EXTENDED -eq 1 ]; then

test/ftl/restore.sh

0 → 100755
+105 −0
Original line number Diff line number Diff line 
#!/usr/bin/env bash



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

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

source $rootdir/test/common/autotest_common.sh

source $testdir/common.sh



rpc_py=$rootdir/scripts/rpc.py



mount_dir=$(mktemp -d)



while getopts ':u:c:f' opt; do

	case $opt in

		u) uuid=$OPTARG ;;

		c) nv_cache=$OPTARG ;;

		f) fast_shutdown=1 ;;

		?) echo "Usage: $0 [-f] [-u UUID] [-c NV_CACHE_PCI_BDF] BASE_PCI_BDF" && exit 1 ;;

	esac

done

shift $((OPTIND - 1))

device=$1

timeout=240



restore_kill() {

	if mount | grep $mount_dir; then

		umount $mount_dir

	fi

	rm -rf $mount_dir

	rm -f $testdir/testfile.md5

	rm -f $testdir/testfile2.md5

	rm -f $testdir/config/ftl.json



	killprocess $svcpid

	rmmod nbd || true

	remove_shm

}



trap "restore_kill; exit 1" SIGINT SIGTERM EXIT



"$SPDK_BIN_DIR/spdk_tgt" &

svcpid=$!

# Wait until spdk_tgt starts

waitforlisten $svcpid



split_bdev=$(create_base_bdev nvme0 $device $((1024 * 101)))

if [ -n "$nv_cache" ]; then

	nvc_bdev=$(create_nv_cache_bdev nvc0 $nv_cache $split_bdev)

fi



l2p_dram_size_mb=$(($(get_bdev_size $split_bdev) * 10 / 100 / 1024))

ftl_construct_args="bdev_ftl_create -b ftl0 -d $split_bdev --l2p_dram_limit $l2p_dram_size_mb"



[ -n "$uuid" ] && ftl_construct_args+=" -u $uuid"

[ -n "$nv_cache" ] && ftl_construct_args+=" -c $nvc_bdev"



$rpc_py -t $timeout $ftl_construct_args



# Load the nbd driver

modprobe nbd

$rpc_py nbd_start_disk ftl0 /dev/nbd0

waitfornbd nbd0



$rpc_py save_config > $testdir/config/ftl.json



# Prepare the disk by creating ext4 fs and putting a file on it

make_filesystem ext4 /dev/nbd0

mount /dev/nbd0 $mount_dir

dd if=/dev/urandom of=$mount_dir/testfile bs=4K count=256K

sync

mount -o remount /dev/nbd0 $mount_dir

md5sum $mount_dir/testfile > $testdir/testfile.md5

umount $mount_dir



# Kill bdev service and start it again

if [ "$fast_shutdown" -eq "1" ]; then

	$rpc_py bdev_ftl_delete -b ftl0 --fast_shutdown

else

	$rpc_py bdev_ftl_delete -b ftl0

fi



killprocess $svcpid



"$SPDK_BIN_DIR/spdk_tgt" -L ftl_init &

svcpid=$!

# Wait until spdk_tgt starts

waitforlisten $svcpid



$rpc_py load_config < $testdir/config/ftl.json

waitfornbd nbd0



mount /dev/nbd0 $mount_dir



# Write second file, to make sure writer thread has restored properly

dd if=/dev/urandom of=$mount_dir/testfile2 bs=4K count=256K

md5sum $mount_dir/testfile2 > $testdir/testfile2.md5



# Make sure second file will be read from disk

echo 3 > /proc/sys/vm/drop_caches



# Check both files have proper data

md5sum -c $testdir/testfile.md5

md5sum -c $testdir/testfile2.md5



trap - SIGINT SIGTERM EXIT

restore_kill