void
test_writesame10_unmap_until_end(void)
{
int ret;
unsigned int i;
CHECK_FOR_DATALOSS;
CHECK_FOR_THIN_PROVISIONING;
CHECK_FOR_LBPWS10;
CHECK_FOR_SBC;
if (inq_bl->wsnz) {
logging(LOG_NORMAL, "[SKIPPED] WRITESAME10 does not support 0-blocks.");
CU_PASS("[SKIPPED] WRITESAME10 does not support 0-blocks.");
return;
}
logging(LOG_VERBOSE, LOG_BLANK_LINE);
logging(LOG_VERBOSE, "Test WRITESAME10 of 1-256 blocks at the end of the LUN by setting number-of-blocks==0");
for (i = 1; i <= 256; i++) {
unsigned char *buf = malloc(block_size * i);
logging(LOG_VERBOSE, "Write %d blocks of 0xFF", i);
memset(buf, 0xff, block_size * i);
ret = write10(sd, num_blocks - i,
i * block_size, block_size, 0, 0, 0, 0, 0, buf,
EXPECT_STATUS_GOOD);
CU_ASSERT_EQUAL(ret, 0);
logging(LOG_VERBOSE, "Unmap %d blocks using WRITESAME10", i);
ret = writesame10(sd, num_blocks - i,
block_size, 0, 0, 1, 0, 0, buf,
EXPECT_STATUS_GOOD);
CU_ASSERT_EQUAL(ret, 0);
if (rc16->lbprz) {
logging(LOG_VERBOSE, "LBPRZ is set. Read the unmapped "
"blocks back and verify they are all zero");
logging(LOG_VERBOSE, "Read %d blocks and verify they "
"are now zero", i);
ret = read10(sd, NULL, num_blocks - i,
i * block_size, block_size,
0, 0, 0, 0, 0, buf,
EXPECT_STATUS_GOOD);
CU_ASSERT(all_zeroes(buf, i * block_size));
} else {
logging(LOG_VERBOSE, "LBPRZ is clear. Skip the read "
"and verify zero test");
}
free(buf);
}
}
static Indirect *find_shared(struct inode *inode,
int depth,
int offsets[DEPTH],
Indirect chain[DEPTH],
block_t *top)
{
Indirect *partial, *p;
int k, err;
*top = 0;
for (k = depth; k > 1 && !offsets[k-1]; k--)
;
partial = get_branch(inode, k, offsets, chain, &err);
write_lock(&pointers_lock);
if (!partial)
partial = chain + k-1;
if (!partial->key && *partial->p) {
write_unlock(&pointers_lock);
goto no_top;
}
for (p=partial;p>chain && all_zeroes((block_t*)p->bh->b_data,p->p);p--)
;
if (p == chain + k - 1 && p > chain) {
p->p--;
} else {
*top = *p->p;
*p->p = 0;
}
write_unlock(&pointers_lock);
while(partial > p)
{
brelse(partial->bh);
partial--;
}
no_top:
return partial;
}
void
test_writesame16_unmap(void)
{
int ret;
unsigned int i;
unsigned char *buf;
CHECK_FOR_DATALOSS;
CHECK_FOR_THIN_PROVISIONING;
CHECK_FOR_LBPWS;
CHECK_FOR_SBC;
logging(LOG_VERBOSE, LOG_BLANK_LINE);
logging(LOG_VERBOSE, "Test WRITESAME16 of 1-256 blocks at the start of the LUN");
buf = calloc(65536, block_size);
for (i = 1; i <= 256; i++) {
logging(LOG_VERBOSE, "Write %d blocks of 0xFF", i);
memset(buf, 0xff, i * block_size);
ret = write16(sd, 0,
i * block_size, block_size, 0, 0, 0, 0, 0, buf,
EXPECT_STATUS_GOOD);
logging(LOG_VERBOSE, "Unmap %d blocks using WRITESAME16", i);
memset(buf, 0, block_size);
ret = writesame16(sd, 0,
block_size, i, 0, 1, 0, 0, buf,
EXPECT_STATUS_GOOD);
if (ret == -2) {
logging(LOG_NORMAL, "[SKIPPED] WRITESAME16 is not implemented.");
CU_PASS("[SKIPPED] Target does not support WRITESAME16. Skipping test");
goto finished;
}
CU_ASSERT_EQUAL(ret, 0);
if (rc16->lbprz) {
logging(LOG_VERBOSE, "LBPRZ is set. Read the unmapped "
"blocks back and verify they are all zero");
logging(LOG_VERBOSE, "Read %d blocks and verify they "
"are now zero", i);
ret = read16(sd, NULL, 0,
i * block_size, block_size,
0, 0, 0, 0, 0, buf,
EXPECT_STATUS_GOOD);
CU_ASSERT(all_zeroes(buf, i * block_size));
} else {
logging(LOG_VERBOSE, "LBPRZ is clear. Skip the read "
"and verify zero test");
}
}
logging(LOG_VERBOSE, "Test WRITESAME16 of 1-256 blocks at the end of the LUN");
for (i = 1; i <= 256; i++) {
logging(LOG_VERBOSE, "Write %d blocks of 0xFF", i);
memset(buf, 0xff, i * block_size);
ret = write16(sd, num_blocks - i,
i * block_size, block_size, 0, 0, 0, 0, 0, buf,
EXPECT_STATUS_GOOD);
CU_ASSERT_EQUAL(ret, 0);
logging(LOG_VERBOSE, "Unmap %d blocks using WRITESAME16", i);
memset(buf, 0, block_size);
ret = writesame16(sd, num_blocks - i,
block_size, i, 0, 1, 0, 0, buf,
EXPECT_STATUS_GOOD);
CU_ASSERT_EQUAL(ret, 0);
if (rc16->lbprz) {
logging(LOG_VERBOSE, "LBPRZ is set. Read the unmapped "
"blocks back and verify they are all zero");
logging(LOG_VERBOSE, "Read %d blocks and verify they "
"are now zero", i);
ret = read16(sd, NULL, num_blocks - i,
i * block_size, block_size,
0, 0, 0, 0, 0, buf,
EXPECT_STATUS_GOOD);
CU_ASSERT(all_zeroes(buf, i * block_size));
} else {
logging(LOG_VERBOSE, "LBPRZ is clear. Skip the read "
"and verify zero test");
}
}
logging(LOG_VERBOSE, "Verify that WRITESAME16 ANCHOR==1 + UNMAP==0 is invalid");
ret = writesame16(sd, 0,
block_size, 1, 1, 0, 0, 0, buf,
EXPECT_INVALID_FIELD_IN_CDB);
CU_ASSERT_EQUAL(ret, 0);
if (inq_lbp->anc_sup) {
logging(LOG_VERBOSE, "Test WRITESAME16 ANCHOR==1 + UNMAP==0");
memset(buf, 0, block_size);
ret = writesame16(sd, 0,
block_size, 1, 1, 1, 0, 0, buf,
EXPECT_STATUS_GOOD);
} else {
logging(LOG_VERBOSE, "Test WRITESAME16 ANCHOR==1 + UNMAP==0 no ANC_SUP so expecting to fail");
ret = writesame16(sd, 0,
block_size, 1, 1, 1, 0, 0, buf,
EXPECT_INVALID_FIELD_IN_CDB);
}
CU_ASSERT_EQUAL(ret, 0);
if (inq_bl == NULL) {
logging(LOG_VERBOSE, "[FAILED] WRITESAME16 works but "
"BlockLimits VPD is missing.");
CU_FAIL("[FAILED] WRITESAME16 works but "
"BlockLimits VPD is missing.");
goto finished;
}
i = 256;
if (i <= num_blocks
&& (inq_bl->max_ws_len == 0 || inq_bl->max_ws_len >= i)) {
logging(LOG_VERBOSE, "Block Limits VPD page reports MAX_WS_LEN "
"as either 0 (==no limit) or >= %d. Test Unmapping "
"%d blocks to verify that it can handle 2-byte "
"lengths", i, i);
logging(LOG_VERBOSE, "Write %d blocks of 0xFF", i);
memset(buf, 0xff, i * block_size);
ret = write16(sd, 0,
i * block_size, block_size, 0, 0, 0, 0, 0, buf,
EXPECT_STATUS_GOOD);
CU_ASSERT_EQUAL(ret, 0);
logging(LOG_VERBOSE, "Unmap %d blocks using WRITESAME16", i);
memset(buf, 0, block_size);
ret = writesame16(sd, 0,
block_size, i, 0, 1, 0, 0, buf,
EXPECT_STATUS_GOOD);
CU_ASSERT_EQUAL(ret, 0);
if (rc16->lbprz) {
logging(LOG_VERBOSE, "LBPRZ is set. Read the unmapped "
"blocks back and verify they are all zero");
logging(LOG_VERBOSE, "Read %d blocks and verify they "
"are now zero", i);
ret = read16(sd, NULL, 0,
i * block_size, block_size,
0, 0, 0, 0, 0, buf,
EXPECT_STATUS_GOOD);
CU_ASSERT(all_zeroes(buf, i * block_size));
} else {
logging(LOG_VERBOSE, "LBPRZ is clear. Skip the read "
"and verify zero test");
}
} else if (i <= num_blocks) {
logging(LOG_VERBOSE, "Block Limits VPD page reports MAX_WS_LEN "
"as <256. Verify that a 256 block unmap fails with "
"INVALID_FIELD_IN_CDB.");
logging(LOG_VERBOSE, "Unmap %d blocks using WRITESAME16", i);
ret = writesame16(sd, 0,
block_size, i, 0, 1, 0, 0, buf,
EXPECT_INVALID_FIELD_IN_CDB);
CU_ASSERT_EQUAL(ret, 0);
}
i = 65536;
if (i <= num_blocks
&& (inq_bl->max_ws_len == 0 || inq_bl->max_ws_len >= i)) {
logging(LOG_VERBOSE, "Block Limits VPD page reports MAX_WS_LEN "
"as either 0 (==no limit) or >= %d. Test Unmapping "
"%d blocks to verify that it can handle 4-byte "
"lengths", i, i);
logging(LOG_VERBOSE, "Write %d blocks of 0xFF", i);
memset(buf, 0xff, i * block_size);
ret = write16(sd, 0,
i * block_size, block_size, 0, 0, 0, 0, 0, buf,
EXPECT_STATUS_GOOD);
CU_ASSERT_EQUAL(ret, 0);
logging(LOG_VERBOSE, "Unmap %d blocks using WRITESAME16", i);
memset(buf, 0, block_size);
ret = writesame16(sd, 0,
block_size, i, 0, 1, 0, 0, buf,
EXPECT_STATUS_GOOD);
CU_ASSERT_EQUAL(ret, 0);
if (rc16->lbprz) {
logging(LOG_VERBOSE, "LBPRZ is set. Read the unmapped "
"blocks back and verify they are all zero");
logging(LOG_VERBOSE, "Read %d blocks and verify they "
"are now zero", i);
ret = read16(sd, NULL, 0,
i * block_size, block_size,
0, 0, 0, 0, 0, buf,
EXPECT_STATUS_GOOD);
CU_ASSERT(all_zeroes(buf, i * block_size));
} else {
logging(LOG_VERBOSE, "LBPRZ is clear. Skip the read "
"and verify zero test");
}
} else if (i <= num_blocks) {
logging(LOG_VERBOSE, "Block Limits VPD page reports MAX_WS_LEN "
"as <256. Verify that a 256 block unmap fails with "
"INVALID_FIELD_IN_CDB.");
logging(LOG_VERBOSE, "Unmap %d blocks using WRITESAME16", i);
ret = writesame16(sd, 0,
block_size, i, 0, 1, 0, 0, buf,
EXPECT_INVALID_FIELD_IN_CDB);
CU_ASSERT_EQUAL(ret, 0);
}
finished:
free(buf);
}