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/*
Copyright (C) 2013 Ronnie Sahlberg <ronniesahlberg@gmail.com>
Copyright (C) 2015 David Disseldorp
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/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <CUnit/CUnit.h>
#include "iscsi.h"
#include "scsi-lowlevel.h"
#include "iscsi-support.h"
#include "iscsi-test-cu.h"
#include "iscsi-multipath.h"
void
test_multipathio_simple(void)
{
int write_path;
unsigned char *write_buf = alloca(256 * block_size);
unsigned char *read_buf = alloca(256 * block_size);
int ret;
CHECK_FOR_DATALOSS;
CHECK_FOR_SBC;
MPATH_SKIP_IF_UNAVAILABLE(mp_sds, mp_num_sds);
logging(LOG_VERBOSE, LOG_BLANK_LINE);
for (write_path = 0; write_path < mp_num_sds; write_path++) {
int i;
int read_path;
memset(write_buf, 0xa6 ^ write_path, 256 * block_size);
/* read back written data using a different path */
read_path = (write_path + 1) % mp_num_sds;
logging(LOG_VERBOSE,
"Test multipath WRITE10/READ10 of 1-256 blocks using "
"path %d", write_path);
for (i = 1; i <= 256; i++) {
if (maximum_transfer_length
&& maximum_transfer_length < i) {
break;
}
ret = WRITE10(mp_sds[write_path], 0, i * block_size,
block_size, 0, 0, 0, 0, 0, write_buf,
EXPECT_STATUS_GOOD);
if (ret < 0)
continue;
ret = READ10(mp_sds[read_path], NULL, 0, i * block_size,
block_size, 0, 0, 0, 0, 0, read_buf,
EXPECT_STATUS_GOOD);
if (ret < 0)
continue;
/* compare written and read data */
ret = memcmp(write_buf, read_buf, i * block_size);
CU_ASSERT_EQUAL(0, ret);
}
}
}
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