qemu/tests/qemu-iotests/100
Stefan Hajnoczi 12ade76090 qemu-iotests: add multiwrite test cases
This test case covers the basic bdrv_aio_multiwrite() scenarios:
1. Single request
2. Sequential requests (AABB)
3. Superset overlapping requests (AABBAA)
4. Subset overlapping requests (BBAABB)
5. Head overlapping requests (AABB)
6. Tail overlapping requests (BBAA)
7. Disjoint requests (AA BB)

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
2014-08-29 14:10:15 +01:00

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#!/bin/bash
#
# Test simple read/write using plain bdrv_read/bdrv_write
#
# Copyright (C) 2014 Red Hat, Inc.
#
# This program 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 program 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.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# creator
owner=stefanha@redhat.com
seq=`basename $0`
echo "QA output created by $seq"
here=`pwd`
tmp=/tmp/$$
status=1 # failure is the default!
_cleanup()
{
_cleanup_test_img
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
_supported_fmt generic
_supported_proto generic
_supported_os Linux
size=128M
echo
echo "== Single request =="
_make_test_img $size
$QEMU_IO -c "multiwrite 0 4k" "$TEST_IMG" | _filter_qemu_io
echo
echo "== verify pattern =="
$QEMU_IO -c "read -P 0xcd 0 4k" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "read -P 0 4k 4k" "$TEST_IMG" | _filter_qemu_io
echo
echo "== Sequential requests =="
_make_test_img $size
$QEMU_IO -c "multiwrite 0 4k ; 4k 4k" "$TEST_IMG" | _filter_qemu_io
echo
echo "== verify pattern =="
$QEMU_IO -c "read -P 0xcd 0 4k" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "read -P 0xce 4k 4k" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "read -P 0 8k 4k" "$TEST_IMG" | _filter_qemu_io
echo
echo "== Superset overlapping requests =="
_make_test_img $size
$QEMU_IO -c "multiwrite 0 4k ; 1k 2k" "$TEST_IMG" | _filter_qemu_io
echo
echo "== verify pattern =="
# Order of overlapping in-flight requests is not guaranteed so we cannot verify
# [1k, 3k) since it could have either pattern 0xcd or 0xce.
$QEMU_IO -c "read -P 0xcd 0 1k" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "read -P 0xcd 3k 1k" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "read -P 0 4k 4k" "$TEST_IMG" | _filter_qemu_io
echo
echo "== Subset overlapping requests =="
_make_test_img $size
$QEMU_IO -c "multiwrite 1k 2k ; 0k 4k" "$TEST_IMG" | _filter_qemu_io
echo
echo "== verify pattern =="
# Order of overlapping in-flight requests is not guaranteed so we cannot verify
# [1k, 3k) since it could have either pattern 0xcd or 0xce.
$QEMU_IO -c "read -P 0xce 0 1k" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "read -P 0xce 3k 1k" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "read -P 0 4k 4k" "$TEST_IMG" | _filter_qemu_io
echo
echo "== Head overlapping requests =="
_make_test_img $size
$QEMU_IO -c "multiwrite 0k 2k ; 0k 4k" "$TEST_IMG" | _filter_qemu_io
echo
echo "== verify pattern =="
# Order of overlapping in-flight requests is not guaranteed so we cannot verify
# [0k, 2k) since it could have either pattern 0xcd or 0xce.
$QEMU_IO -c "read -P 0xce 2k 2k" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "read -P 0 4k 4k" "$TEST_IMG" | _filter_qemu_io
echo
echo "== Tail overlapping requests =="
_make_test_img $size
$QEMU_IO -c "multiwrite 2k 2k ; 0k 4k" "$TEST_IMG" | _filter_qemu_io
echo
echo "== verify pattern =="
# Order of overlapping in-flight requests is not guaranteed so we cannot verify
# [2k, 4k) since it could have either pattern 0xcd or 0xce.
$QEMU_IO -c "read -P 0xce 0k 2k" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "read -P 0 4k 4k" "$TEST_IMG" | _filter_qemu_io
echo
echo "== Disjoint requests =="
_make_test_img $size
$QEMU_IO -c "multiwrite 0 4k ; 64k 4k" "$TEST_IMG" | _filter_qemu_io
echo
echo "== verify pattern =="
$QEMU_IO -c "read -P 0xcd 0 4k" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "read -P 0 4k 60k" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "read -P 0xce 64k 4k" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "read -P 0 68k 4k" "$TEST_IMG" | _filter_qemu_io
# success, all done
echo "*** done"
rm -f $seq.full
status=0