ded75ae18a
From the SPC-4 paragraph about WRITE SAME(10): "The WRITE SAME (10) command requests that the device server transfer a single logical block from the Data-Out Buffer [ ... ]". Hence always pass a data buffer when sending a WRITE SAME(10) command. Set the NDOB bit in the WRITE SAME(16) command if no data out buffer is present. Signed-off-by: Bart Van Assche <bvanassche@acm.org>
80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/*
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Copyright (C) 2013 Ronnie Sahlberg <ronniesahlberg@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <CUnit/CUnit.h>
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#include "iscsi.h"
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#include "scsi-lowlevel.h"
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#include "iscsi-support.h"
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#include "iscsi-test-cu.h"
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void
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test_writesame10_unmap_until_end(void)
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{
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int ret;
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unsigned int i, j;
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unsigned char *zeroBlock;
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CHECK_FOR_DATALOSS;
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CHECK_FOR_THIN_PROVISIONING;
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CHECK_FOR_LBPWS10;
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CHECK_FOR_SBC;
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zeroBlock = alloca(block_size);
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memset(zeroBlock, 0, block_size);
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logging(LOG_VERBOSE, LOG_BLANK_LINE);
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logging(LOG_VERBOSE, "Test WRITESAME10 of 1-256 blocks at the end of the LUN by setting number-of-blocks==0");
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for (i = 1; i <= 256; i++) {
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unsigned char *buf = malloc(block_size * i);
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logging(LOG_VERBOSE, "Write %d blocks of 0xFF", i);
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memset(buf, 0xff, block_size * i);
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ret = write10(iscsic, tgt_lun, num_blocks - i,
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i * block_size, block_size,
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0, 0, 0, 0, 0, buf);
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CU_ASSERT_EQUAL(ret, 0);
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logging(LOG_VERBOSE, "Unmap %d blocks using WRITESAME10", i);
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ret = writesame10(iscsic, tgt_lun, num_blocks - i,
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block_size, i,
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0, 1, 0, 0, buf);
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CU_ASSERT_EQUAL(ret, 0);
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if (rc16->lbprz) {
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logging(LOG_VERBOSE, "LBPRZ is set. Read the unmapped "
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"blocks back and verify they are all zero");
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logging(LOG_VERBOSE, "Read %d blocks and verify they "
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"are now zero", i);
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ret = read10(iscsic, tgt_lun, num_blocks - i,
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i * block_size, block_size,
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0, 0, 0, 0, 0, buf);
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for (j = 0; j < i; j++) {
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CU_ASSERT_EQUAL(memcmp(buf + j*block_size, zeroBlock, block_size), 0);
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}
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} else {
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logging(LOG_VERBOSE, "LBPRZ is clear. Skip the read "
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"and verify zero test");
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}
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free(buf);
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}
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}
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