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#!/usr/bin/env bash
testdir=$(readlink -f $(dirname $0))
rootdir=$(readlink -f $testdir/../..)
rpc_server=/var/tmp/spdk-raid.sock
rpc_py="$rootdir/scripts/rpc.py -s $rpc_server"
tmp_file=$SPDK_TEST_STORAGE/raidrandtest
source $rootdir/test/common/autotest_common.sh
source $testdir/nbd_common.sh
function raid_unmap_data_verify() {
if hash blkdiscard; then
local nbd=$1
local rpc_server=$2
local blksize
blksize=$(lsblk -o LOG-SEC $nbd | grep -v LOG-SEC | cut -d ' ' -f 5)
local rw_blk_num=4096
local rw_len=$((blksize * rw_blk_num))
local unmap_blk_offs=(0 1028 321)
local unmap_blk_nums=(128 2035 456)
local unmap_off
local unmap_len
# data write
dd if=/dev/urandom of=$tmp_file bs=$blksize count=$rw_blk_num
dd if=$tmp_file of=$nbd bs=$blksize count=$rw_blk_num oflag=direct
blockdev --flushbufs $nbd
# confirm random data is written correctly in raid0 device
cmp -b -n $rw_len $tmp_file $nbd
for ((i = 0; i < ${#unmap_blk_offs[@]}; i++)); do
unmap_off=$((blksize * ${unmap_blk_offs[$i]}))
unmap_len=$((blksize * ${unmap_blk_nums[$i]}))
# data unmap on tmp_file
dd if=/dev/zero of=$tmp_file bs=$blksize seek=${unmap_blk_offs[$i]} count=${unmap_blk_nums[$i]} conv=notrunc
# data unmap on raid bdev
blkdiscard -o $unmap_off -l $unmap_len $nbd
blockdev --flushbufs $nbd
# data verify after unmap
cmp -b -n $rw_len $tmp_file $nbd
done
fi
return 0
}
function on_error_exit() {
if [ -n "$raid_pid" ]; then
killprocess $raid_pid
fi
rm -f $tmp_file
print_backtrace
exit 1
}
function configure_raid_bdev() {
rm -rf $testdir/rpcs.txt
cat <<- EOL >> $testdir/rpcs.txt
bdev_malloc_create 32 512 -b Base_1
bdev_malloc_create 32 512 -b Base_2
bdev_raid_create -z 64 -r 0 -b "Base_1 Base_2" -n raid0
EOL
$rpc_py < $testdir/rpcs.txt
rm -rf $testdir/rpcs.txt
}
function raid_function_test() {
if [ $(uname -s) = Linux ] && modprobe -n nbd; then
local nbd=/dev/nbd0
local raid_bdev
modprobe nbd
$rootdir/test/app/bdev_svc/bdev_svc -r $rpc_server -i 0 -L bdev_raid &
raid_pid=$!
echo "Process raid pid: $raid_pid"
waitforlisten $raid_pid $rpc_server
configure_raid_bdev
raid_bdev=$($rpc_py bdev_raid_get_bdevs online | cut -d ' ' -f 1)
if [ $raid_bdev = "" ]; then
echo "No raid0 device in SPDK app"
return 1
fi
nbd_start_disks $rpc_server $raid_bdev $nbd
count=$(nbd_get_count $rpc_server)
if [ $count -ne 1 ]; then
return 1
fi
raid_unmap_data_verify $nbd $rpc_server
nbd_stop_disks $rpc_server $nbd
count=$(nbd_get_count $rpc_server)
if [ $count -ne 0 ]; then
return 1
fi
killprocess $raid_pid
else
echo "skipping bdev raid tests."
fi
return 0
}
trap 'on_error_exit;' ERR
raid_function_test
rm -f $tmp_file
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