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/*
Copyright (C) 2013 Ronnie Sahlberg <ronniesahlberg@gmail.com>
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"
void
test_unmap_simple(void)
{
int i;
int max_nr_bdc = 256;
struct unmap_list list[257];
logging(LOG_VERBOSE, LOG_BLANK_LINE);
logging(LOG_VERBOSE, "Test basic UNMAP");
CHECK_FOR_DATALOSS;
CHECK_FOR_THIN_PROVISIONING;
CHECK_FOR_SBC;
logging(LOG_VERBOSE, "Test UNMAP of 1-256 blocks at the start of the "
"LUN as a single descriptor");
logging(LOG_VERBOSE, "Write 'a' to the first 256 LBAs");
memset(scratch, 'a', 256 * block_size);
WRITE10(sd, 0, 256 * block_size,
block_size, 0, 0, 0, 0, 0, scratch,
EXPECT_STATUS_GOOD);
for (i = 1; i <= 256; i++) {
logging(LOG_VERBOSE, "UNMAP blocks 0-%d", i);
list[0].lba = 0;
list[0].num = i;
UNMAP(sd, 0, list, 1,
EXPECT_STATUS_GOOD);
logging(LOG_VERBOSE, "Read blocks 0-%d", i);
READ10(sd, NULL, 0, i * block_size,
block_size, 0, 0, 0, 0, 0, scratch,
EXPECT_STATUS_GOOD);
if (rc16 && rc16->lbprz) {
logging(LOG_VERBOSE, "LBPRZ==1 All UNMAPPED blocks "
"should read back as 0");
ALL_ZERO(scratch, i * block_size);
}
}
if (inq_bl->max_unmap_bdc > 0 && max_nr_bdc > (int)inq_bl->max_unmap_bdc) {
max_nr_bdc = (int)inq_bl->max_unmap_bdc;
}
if (max_nr_bdc < 0 || max_nr_bdc > 256) {
logging(LOG_VERBOSE, "Clamp max unmapped blocks to 256");
max_nr_bdc = 256;
}
logging(LOG_VERBOSE, "Test UNMAP of 1-%d blocks at the start of the "
"LUN with one descriptor per block", max_nr_bdc);
logging(LOG_VERBOSE, "Write 'a' to the first %d LBAs", max_nr_bdc);
memset(scratch, 'a', max_nr_bdc * block_size);
WRITE10(sd, 0, max_nr_bdc * block_size,
block_size, 0, 0, 0, 0, 0, scratch,
EXPECT_STATUS_GOOD);
for (i = 0; i < max_nr_bdc; i++) {
list[i].lba = i;
list[i].num = 1;
UNMAP(sd, 0, list, i + 1,
EXPECT_STATUS_GOOD);
logging(LOG_VERBOSE, "Read blocks 0-%d", i);
READ10(sd, NULL, 0, (i + 1) * block_size,
block_size, 0, 0, 0, 0, 0, scratch,
EXPECT_STATUS_GOOD);
if (rc16 && rc16->lbprz) {
logging(LOG_VERBOSE, "LBPRZ==1 All UNMAPPED blocks "
"should read back as 0");
ALL_ZERO(scratch, i * block_size);
}
}
}
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