void
test_compareandwrite_dpofua(void)
{
int ret, dpofua, usage_data_dpofua;
struct scsi_task *ms_task = NULL;
struct scsi_mode_sense *ms;
struct scsi_task *rso_task = NULL;
struct scsi_report_supported_op_codes_one_command *rsoc;
unsigned char *buf = alloca(2 * block_size);
logging(LOG_VERBOSE, LOG_BLANK_LINE);
logging(LOG_VERBOSE, "Test COMPAREANDWRITE DPO/FUA flags");
CHECK_FOR_SBC;
CHECK_FOR_DATALOSS;
logging(LOG_VERBOSE, "Read the DPOFUA flag from mode sense data");
ret = modesense6(sd, &ms_task, 0, SCSI_MODESENSE_PC_CURRENT,
SCSI_MODEPAGE_RETURN_ALL_PAGES, 0, 255,
EXPECT_STATUS_GOOD);
CU_ASSERT_EQUAL(ret, 0);
logging(LOG_VERBOSE, "[SUCCESS] Mode sense returned status GOOD");
ms = scsi_datain_unmarshall(ms_task);
dpofua = ms && (ms->device_specific_parameter & 0x10);
scsi_free_scsi_task(ms_task);
logging(LOG_VERBOSE, "Read the first block");
ret = read10(sd, NULL, 0, block_size,
block_size, 0, 0, 0, 0, 0, buf,
EXPECT_STATUS_GOOD);
CU_ASSERT_EQUAL(ret, 0);
if (ret == 0)
memcpy(buf + block_size, buf, block_size);
else
memset(buf, 0xa6, 2 * block_size);
if (dpofua) {
logging(LOG_VERBOSE, "DPOFUA flag is set. Device should allow "
"DPO/FUA flags in CDBs");
} else {
logging(LOG_VERBOSE, "DPOFUA flag is clear. Device should fail "
"CDBs with DPO/FUA set");
}
logging(LOG_VERBOSE, "Test COMPAREANDWRITE with DPO==1");
if (dpofua) {
ret = compareandwrite(sd, 0, buf, 2 * block_size,
block_size, 0, 1, 0, 0,
EXPECT_STATUS_GOOD);
CU_ASSERT_EQUAL(ret, 0);
} else {
ret = compareandwrite(sd, 0, buf, 2 * block_size,
block_size, 0, 1, 0, 0,
EXPECT_INVALID_FIELD_IN_CDB);
CU_ASSERT_EQUAL(ret, 0);
}
logging(LOG_VERBOSE, "Test COMPAREANDWRITE with FUA==1");
if (dpofua) {
ret = compareandwrite(sd, 0, buf, 2 * block_size,
block_size, 0, 0, 1, 0,
EXPECT_STATUS_GOOD);
CU_ASSERT_EQUAL(ret, 0);
} else {
ret = compareandwrite(sd, 0, buf, 2 * block_size,
block_size, 0, 0, 1, 0,
EXPECT_INVALID_FIELD_IN_CDB);
CU_ASSERT_EQUAL(ret, 0);
}
logging(LOG_VERBOSE, "Test COMPAREANDWRITE with DPO==1 FUA==1");
if (dpofua) {
ret = compareandwrite(sd, 0, buf, 2 * block_size,
block_size, 0, 1, 1, 0,
EXPECT_STATUS_GOOD);
CU_ASSERT_EQUAL(ret, 0);
} else {
ret = compareandwrite(sd, 0, buf, 2 * block_size,
block_size, 0, 1, 1, 0,
EXPECT_INVALID_FIELD_IN_CDB);
CU_ASSERT_EQUAL(ret, 0);
}
logging(LOG_VERBOSE, "Try fetching REPORT_SUPPORTED_OPCODES "
"for COMPAREANDWRITE");
ret = report_supported_opcodes(sd, &rso_task,
0, SCSI_REPORT_SUPPORTING_OPCODE,
SCSI_OPCODE_COMPARE_AND_WRITE,
0,
65535,
EXPECT_STATUS_GOOD);
if (ret == -2) {
logging(LOG_NORMAL, "REPORT_SUPPORTED_OPCODES not implemented. "
"Skipping this part of the test");
return;
}
logging(LOG_VERBOSE, "Unmarshall the DATA-IN buffer");
rsoc = scsi_datain_unmarshall(rso_task);
CU_ASSERT_NOT_EQUAL(rsoc, NULL);
usage_data_dpofua = rsoc ? rsoc->cdb_usage_data[1] & 0x18 : -1;
if (dpofua) {
logging(LOG_VERBOSE, "DPOFUA is set. Verify the DPO/FUA flags "
"are set in the CDB_USAGE_DATA");
CU_ASSERT_EQUAL(usage_data_dpofua, 0x18);
} else {
logging(LOG_VERBOSE, "DPOFUA is clear. Verify the DPO/FUA "
"flags are clear in the CDB_USAGE_DATA");
CU_ASSERT_EQUAL(usage_data_dpofua, 0x00);
}
scsi_free_scsi_task(rso_task);
}
void
test_compareandwrite_simple(void)
{
int i, ret;
unsigned j;
unsigned char *buf = alloca(2 * 256 * block_size);
int maxbl;
CHECK_FOR_DATALOSS;
CHECK_FOR_SBC;
if (inq_bl && inq_bl->max_cmp) {
maxbl = inq_bl->max_cmp;
} else {
/* Assume we are not limited */
maxbl = 256;
}
logging(LOG_VERBOSE, LOG_BLANK_LINE);
logging(LOG_VERBOSE, "Test COMPARE_AND_WRITE of 1-256 blocks at the "
"start of the LUN");
for (i = 1; i < 256; i++) {
logging(LOG_VERBOSE, "Write %d blocks of 'A' at LBA:0", i);
memset(buf, 'A', 2 * i * block_size);
if (maximum_transfer_length && maximum_transfer_length < i) {
break;
}
ret = write16(iscsic, tgt_lun, 0, i * block_size,
block_size, 0, 0, 0, 0, 0, buf);
if (ret == -2) {
logging(LOG_NORMAL, "[SKIPPED] WRITE16 is not implemented.");
CU_PASS("WRITE16 is not implemented.");
return;
}
CU_ASSERT_EQUAL(ret, 0);
if (i > maxbl) {
logging(LOG_VERBOSE, "Number of blocks %d is greater than "
"BlockLimits.MaximumCompareAndWriteLength(%d). "
"Command should fail with INVALID_FIELD_IN_CDB",
i, maxbl);
ret = compareandwrite_invalidfieldincdb(iscsic, tgt_lun, 0,
buf, 2 * i * block_size, block_size,
0, 0, 0, 0);
if (ret == -2) {
CU_PASS("[SKIPPED] Target does not support "
"COMPARE_AND_WRITE. Skipping test");
return;
}
CU_ASSERT_EQUAL(ret, 0);
continue;
}
memset(buf + i * block_size, 'B', i * block_size);
logging(LOG_VERBOSE, "Overwrite %d blocks with 'B' "
"at LBA:0 (if they all contain 'A')", i);
ret = compareandwrite(iscsic, tgt_lun, 0,
buf, 2 * i * block_size, block_size,
0, 0, 0, 0);
if (ret == -2) {
CU_PASS("[SKIPPED] Target does not support "
"COMPARE_AND_WRITE. Skipping test");
return;
}
CU_ASSERT_EQUAL(ret, 0);
logging(LOG_VERBOSE, "Read %d blocks at LBA:0 and verify "
"they are all 'B'", i);
ret = read16(iscsic, tgt_lun, 0, i * block_size,
block_size, 0, 0, 0, 0, 0, buf);
CU_ASSERT_EQUAL(ret, 0);
for (j = 0; j < i * block_size; j++) {
if (buf[j] != 'B') {
logging(LOG_VERBOSE, "[FAILED] Data did not "
"read back as 'B'");
CU_FAIL("Block was not written correctly");
return;
}
}
}
logging(LOG_VERBOSE, "Test COMPARE_AND_WRITE of 1-256 blocks at the "
"end of the LUN");
for (i = 1; i < 256; i++) {
logging(LOG_VERBOSE, "Write %d blocks of 'A' at LBA:%" PRIu64,
i, num_blocks - i);
memset(buf, 'A', 2 * i * block_size);
if (maximum_transfer_length && maximum_transfer_length < i) {
break;
}
ret = write16(iscsic, tgt_lun, num_blocks - i, i * block_size,
block_size, 0, 0, 0, 0, 0, buf);
CU_ASSERT_EQUAL(ret, 0);
if (i > maxbl) {
logging(LOG_VERBOSE, "Number of blocks %d is greater than "
"BlockLimits.MaximumCompareAndWriteLength(%d). "
"Command should fail with INVALID_FIELD_IN_CDB",
i, maxbl);
ret = compareandwrite_invalidfieldincdb(iscsic, tgt_lun, 0,
buf, 2 * i * block_size, block_size,
0, 0, 0, 0);
CU_ASSERT_EQUAL(ret, 0);
continue;
}
memset(buf + i * block_size, 'B', i * block_size);
logging(LOG_VERBOSE, "Overwrite %d blocks with 'B' "
"at LBA:%" PRIu64 " (if they all contain 'A')",
i, num_blocks - i);
ret = compareandwrite(iscsic, tgt_lun, num_blocks - i,
buf, 2 * i * block_size, block_size, 0, 0, 0, 0);
CU_ASSERT_EQUAL(ret, 0);
logging(LOG_VERBOSE, "Read %d blocks at LBA:%" PRIu64
" and verify they are all 'B'",
i, num_blocks - i);
ret = read16(iscsic, tgt_lun, num_blocks - i, i * block_size,
block_size, 0, 0, 0, 0, 0, buf);
CU_ASSERT_EQUAL(ret, 0);
for (j = 0; j < i * block_size; j++) {
if (buf[j] != 'B') {
logging(LOG_VERBOSE, "[FAILED] Data did not "
"read back as 'B'");
CU_FAIL("Block was not written correctly");
return;
}
}
}
}
void
test_compareandwrite_simple(void)
{
int i, ret;
unsigned j;
unsigned char *buf = alloca(2 * 256 * block_size);
CHECK_FOR_DATALOSS;
CHECK_FOR_SBC;
logging(LOG_VERBOSE, LOG_BLANK_LINE);
logging(LOG_VERBOSE, "Test COMPARE_AND_WRITE of 1-256 blocks at the "
"start of the LUN");
for (i = 1; i < 256; i++) {
logging(LOG_VERBOSE, "Write %d blocks of 'A' at LBA:0", i);
memset(buf, 'A', 2 * i * block_size);
if (maximum_transfer_length && maximum_transfer_length < i) {
break;
}
ret = write16(iscsic, tgt_lun, 0, i * block_size,
block_size, 0, 0, 0, 0, 0, buf);
if (ret == -2) {
logging(LOG_NORMAL, "[SKIPPED] WRITE16 is not implemented.");
CU_PASS("WRITE16 is not implemented.");
return;
}
CU_ASSERT_EQUAL(ret, 0);
memset(buf + i * block_size, 'B', i * block_size);
logging(LOG_VERBOSE, "Overwrite %d blocks with 'B' "
"at LBA:0 (if they all contain 'A')", i);
ret = compareandwrite(iscsic, tgt_lun, 0,
buf, 2 * i * block_size, block_size, 0, 0, 0, 0);
if (ret == -2) {
CU_PASS("[SKIPPED] Target does not support "
"COMPARE_AND_WRITE. Skipping test");
return;
}
CU_ASSERT_EQUAL(ret, 0);
logging(LOG_VERBOSE, "Read %d blocks at LBA:0 and verify "
"they are all 'B'", i);
ret = read16(iscsic, tgt_lun, 0, i * block_size,
block_size, 0, 0, 0, 0, 0, buf);
CU_ASSERT_EQUAL(ret, 0);
for (j = 0; j < i * block_size; j++) {
if (buf[j] != 'B') {
logging(LOG_VERBOSE, "[FAILED] Data did not "
"read back as 'B'");
CU_FAIL("Block was not written correctly");
return;
}
}
}
logging(LOG_VERBOSE, "Test COMPARE_AND_WRITE of 1-256 blocks at the "
"end of the LUN");
for (i = 1; i < 256; i++) {
logging(LOG_VERBOSE, "Write %d blocks of 'A' at LBA:%" PRIu64,
i, num_blocks - i);
memset(buf, 'A', 2 * i * block_size);
if (maximum_transfer_length && maximum_transfer_length < i) {
break;
}
ret = write16(iscsic, tgt_lun, num_blocks - i, i * block_size,
block_size, 0, 0, 0, 0, 0, buf);
CU_ASSERT_EQUAL(ret, 0);
memset(buf + i * block_size, 'B', i * block_size);
logging(LOG_VERBOSE, "Overwrite %d blocks with 'B' "
"at LBA:%" PRIu64 " (if they all contain 'A')",
i, num_blocks - i);
ret = compareandwrite(iscsic, tgt_lun, num_blocks - i,
buf, 2 * i * block_size, block_size, 0, 0, 0, 0);
CU_ASSERT_EQUAL(ret, 0);
logging(LOG_VERBOSE, "Read %d blocks at LBA:%" PRIu64
" and verify they are all 'B'",
i, num_blocks - i);
ret = read16(iscsic, tgt_lun, num_blocks - i, i * block_size,
block_size, 0, 0, 0, 0, 0, buf);
CU_ASSERT_EQUAL(ret, 0);
for (j = 0; j < i * block_size; j++) {
if (buf[j] != 'B') {
logging(LOG_VERBOSE, "[FAILED] Data did not "
"read back as 'B'");
CU_FAIL("Block was not written correctly");
return;
}
}
}
}
