#!/bin/bash

#
# This file is part of util-linux.
#
# This file is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This file is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#


#
# Test alignment for 512/512 disk *with* topology -- aligned to optimal
# I/O size (32KiB)
#

TS_TOPDIR="$(dirname $0)/../.."
TS_DESC="align 512/4K +MD"

. $TS_TOPDIR/functions.sh
ts_init "$*"
ts_skip_nonroot

DEVICE=$(ts_scsi_debug_init dev_size_mb=50 sector_size=512 physblk_exp=3)
DEVNAME=$(basename $DEVICE)

ts_log "Create partitions"
$TS_CMD_FDISK ${DEVICE} >> $TS_OUTPUT 2>&1 <<EOF
n
p
1

+20M
n
p
2


p
w
q
EOF

udevadm settle
ts_log "Alignment offsets:"
cat /sys/block/${DEVNAME}/${DEVNAME}{1,2}/alignment_offset >> $TS_OUTPUT 2>&1

MD_DEVNAME=md8
MD_DEVICE=/dev/${MD_DEVNAME}

/sbin/mdadm -q -S ${MD_DEVICE} &> /dev/null
/sbin/mdadm -q --create ${MD_DEVICE} --metadata=0.90 --chunk=64 \
	    --level=0 --raid-devices=2 ${DEVICE}1 ${DEVICE}2 >> $TS_OUTPUT 2>&1

udevadm settle
ts_log "Create partitions (MD)"
$TS_CMD_FDISK ${MD_DEVICE} >> $TS_OUTPUT 2>&1 <<EOF
n
p
1

+10M
n
p
2

+10M
p
w
q
EOF

udevadm settle
ts_log "Alignment offsets (MD):"
cat /sys/block/${MD_DEVNAME}/${MD_DEVNAME}p{1,2}/alignment_offset >> $TS_OUTPUT 2>&1

/sbin/mdadm -q -S ${MD_DEVICE} >> $TS_OUTPUT 2>&1

udevadm settle
rmmod scsi_debug

ts_fdisk_clean $DEVICE

ts_finalize