[PATCH blktests v2 8/9] md/rc: test atomic writes for dm-stripe

[John Garry <john.g.garry@oracle.com>]

Ensure that the drives are at least 5MB. This is because we need to know
the size of the volume to create. For dm-linear, we could use vgsize.
However that doesn't work for dm-stripe, as we want the volume to cover
all disks; for that, we need to know the minimum size of each disk.

Signed-off-by: John Garry <john.g.garry@oracle.com>
---
 tests/md/002     |  1 +
 tests/md/002.out | 52 ++++++++++++++++++++++++++++++++++++++++++++++++
 tests/md/003     |  1 +
 tests/md/rc      | 29 +++++++++++++++++++++++----
 4 files changed, 79 insertions(+), 4 deletions(-)

diff --git a/tests/md/002 b/tests/md/002
index 65a5fa5..b0cbeb9 100755
--- a/tests/md/002
+++ b/tests/md/002
@@ -23,6 +23,7 @@ test() {
 		num_tgts=1
 		add_host=4
 		per_host_store=true
+		dev_size_mb=5
 	)
 
 	echo "Running md_atomics_test"
diff --git a/tests/md/002.out b/tests/md/002.out
index 5426cf6..cce1b1c 100644
--- a/tests/md/002.out
+++ b/tests/md/002.out
@@ -129,4 +129,56 @@ TEST 9 dm-linear step 1 - perform a pwritev2 with size of sysfs_atomic_unit_max_
 TEST 10 dm-linear step 1 - perform a pwritev2 with size of sysfs_atomic_unit_min_bytes with RWF_ATOMIC flag - pwritev2 should fail - pass
 pwrite: Invalid argument
 TEST 11 dm-linear step 1 - perform a pwritev2 with a size of sysfs_atomic_write_unit_max_bytes - LBS bytes with RWF_ATOMIC flag - pwritev2 should fail - pass
+TEST 1 dm-stripe step 1 - Verify md sysfs atomic attributes matches - pass
+TEST 2 dm-stripe step 1 - Verify sysfs atomic attributes - pass
+TEST 3 dm-stripe step 1 - Verify md sysfs_atomic_write_max is equal to expected_atomic_write_max - pass
+TEST 4 dm-stripe step 1 - Verify sysfs atomic_write_unit_max_bytes =  expected_atomic_write_unit_max - pass
+TEST 5 dm-stripe step 1 - Verify sysfs atomic_write_unit_boundary_bytes = expected atomic_write_unit_boundary_bytes - pass
+TEST 6 dm-stripe step 1 - Verify statx stx_atomic_write_unit_min - pass
+TEST 7 dm-stripe step 1 - Verify statx stx_atomic_write_unit_max - pass
+TEST 8 dm-stripe step 1 - perform a pwritev2 with size of sysfs_atomic_unit_max_bytes with RWF_ATOMIC flag - pwritev2 should fail - pass
+pwrite: Invalid argument
+TEST 9 dm-stripe step 1 - perform a pwritev2 with size of sysfs_atomic_unit_max_bytes + LBS bytes with RWF_ATOMIC flag - pwritev2 should not be succesful - pass
+TEST 10 dm-stripe step 1 - perform a pwritev2 with size of sysfs_atomic_unit_min_bytes with RWF_ATOMIC flag - pwritev2 should fail - pass
+pwrite: Invalid argument
+TEST 11 dm-stripe step 1 - perform a pwritev2 with a size of sysfs_atomic_write_unit_max_bytes - LBS bytes with RWF_ATOMIC flag - pwritev2 should fail - pass
+TEST 1 dm-stripe step 2 - Verify md sysfs atomic attributes matches - pass
+TEST 2 dm-stripe step 2 - Verify sysfs atomic attributes - pass
+TEST 3 dm-stripe step 2 - Verify md sysfs_atomic_write_max is equal to expected_atomic_write_max - pass
+TEST 4 dm-stripe step 2 - Verify sysfs atomic_write_unit_max_bytes =  expected_atomic_write_unit_max - pass
+TEST 5 dm-stripe step 2 - Verify sysfs atomic_write_unit_boundary_bytes = expected atomic_write_unit_boundary_bytes - pass
+TEST 6 dm-stripe step 2 - Verify statx stx_atomic_write_unit_min - pass
+TEST 7 dm-stripe step 2 - Verify statx stx_atomic_write_unit_max - pass
+TEST 8 dm-stripe step 2 - perform a pwritev2 with size of sysfs_atomic_unit_max_bytes with RWF_ATOMIC flag - pwritev2 should fail - pass
+pwrite: Invalid argument
+TEST 9 dm-stripe step 2 - perform a pwritev2 with size of sysfs_atomic_unit_max_bytes + LBS bytes with RWF_ATOMIC flag - pwritev2 should not be succesful - pass
+TEST 10 dm-stripe step 2 - perform a pwritev2 with size of sysfs_atomic_unit_min_bytes with RWF_ATOMIC flag - pwritev2 should fail - pass
+pwrite: Invalid argument
+TEST 11 dm-stripe step 2 - perform a pwritev2 with a size of sysfs_atomic_write_unit_max_bytes - LBS bytes with RWF_ATOMIC flag - pwritev2 should fail - pass
+TEST 1 dm-stripe step 3 - Verify md sysfs atomic attributes matches - pass
+TEST 2 dm-stripe step 3 - Verify sysfs atomic attributes - pass
+TEST 3 dm-stripe step 3 - Verify md sysfs_atomic_write_max is equal to expected_atomic_write_max - pass
+TEST 4 dm-stripe step 3 - Verify sysfs atomic_write_unit_max_bytes =  expected_atomic_write_unit_max - pass
+TEST 5 dm-stripe step 3 - Verify sysfs atomic_write_unit_boundary_bytes = expected atomic_write_unit_boundary_bytes - pass
+TEST 6 dm-stripe step 3 - Verify statx stx_atomic_write_unit_min - pass
+TEST 7 dm-stripe step 3 - Verify statx stx_atomic_write_unit_max - pass
+TEST 8 dm-stripe step 3 - perform a pwritev2 with size of sysfs_atomic_unit_max_bytes with RWF_ATOMIC flag - pwritev2 should fail - pass
+pwrite: Invalid argument
+TEST 9 dm-stripe step 3 - perform a pwritev2 with size of sysfs_atomic_unit_max_bytes + LBS bytes with RWF_ATOMIC flag - pwritev2 should not be succesful - pass
+TEST 10 dm-stripe step 3 - perform a pwritev2 with size of sysfs_atomic_unit_min_bytes with RWF_ATOMIC flag - pwritev2 should fail - pass
+pwrite: Invalid argument
+TEST 11 dm-stripe step 3 - perform a pwritev2 with a size of sysfs_atomic_write_unit_max_bytes - LBS bytes with RWF_ATOMIC flag - pwritev2 should fail - pass
+TEST 1 dm-stripe step 4 - Verify md sysfs atomic attributes matches - pass
+TEST 2 dm-stripe step 4 - Verify sysfs atomic attributes - pass
+TEST 3 dm-stripe step 4 - Verify md sysfs_atomic_write_max is equal to expected_atomic_write_max - pass
+TEST 4 dm-stripe step 4 - Verify sysfs atomic_write_unit_max_bytes =  expected_atomic_write_unit_max - pass
+TEST 5 dm-stripe step 4 - Verify sysfs atomic_write_unit_boundary_bytes = expected atomic_write_unit_boundary_bytes - pass
+TEST 6 dm-stripe step 4 - Verify statx stx_atomic_write_unit_min - pass
+TEST 7 dm-stripe step 4 - Verify statx stx_atomic_write_unit_max - pass
+TEST 8 dm-stripe step 4 - perform a pwritev2 with size of sysfs_atomic_unit_max_bytes with RWF_ATOMIC flag - pwritev2 should fail - pass
+pwrite: Invalid argument
+TEST 9 dm-stripe step 4 - perform a pwritev2 with size of sysfs_atomic_unit_max_bytes + LBS bytes with RWF_ATOMIC flag - pwritev2 should not be succesful - pass
+TEST 10 dm-stripe step 4 - perform a pwritev2 with size of sysfs_atomic_unit_min_bytes with RWF_ATOMIC flag - pwritev2 should fail - pass
+pwrite: Invalid argument
+TEST 11 dm-stripe step 4 - perform a pwritev2 with a size of sysfs_atomic_write_unit_max_bytes - LBS bytes with RWF_ATOMIC flag - pwritev2 should fail - pass
 Test complete
diff --git a/tests/md/003 b/tests/md/003
index 5a68480..b9b2075 100755
--- a/tests/md/003
+++ b/tests/md/003
@@ -18,6 +18,7 @@ requires() {
 
 device_requires() {
 	_require_test_dev_is_nvme
+	_require_test_dev_size 5m
 }
 
 test_device_array() {
diff --git a/tests/md/rc b/tests/md/rc
index 3209402..9f0472e 100644
--- a/tests/md/rc
+++ b/tests/md/rc
@@ -157,9 +157,11 @@ _md_atomics_test() {
 		raw_atomic_write_boundary=0;
 	fi
 
-	for personality in raid0 raid1 raid10 dm-linear; do
+
+	for personality in raid0 raid1 raid10 dm-linear dm-stripe; do
 		local step_limit
-		if [ "$personality" = raid0 ] || [ "$personality" = raid10 ]
+		if [ "$personality" = raid0 ] || [ "$personality" = raid10 ] || \
+		    [ "$personality" = dm-stripe ]
 		then
 			step_limit=4
 		else
@@ -225,7 +227,7 @@ _md_atomics_test() {
 				md_dev=$(readlink /dev/md/blktests_md | sed 's|\.\./||')
 			fi
 
-			if [ "$personality" = dm-linear ]
+			if [ "$personality" = dm-linear ] || [ "$personality" = dm-stripe ]
 			then
 				for i in "${MD_DEVICES[@]}"; do
 					pvremove --force /dev/"$i" 2> /dev/null 1>&2
@@ -236,6 +238,25 @@ _md_atomics_test() {
 						/dev/"${dev2}" /dev/"${dev3}" 2> /dev/null 1>&2
 			fi
 
+			if [ "$personality" = dm-stripe ]
+			then
+				atomics_boundaries_unit_max=$(_md_atomics_boundaries_max $raw_atomic_write_boundary $md_chunk_size "1")
+				atomics_boundaries_max=$(_md_atomics_boundaries_max $raw_atomic_write_boundary $md_chunk_size "0")
+
+				# The caller should ensure test device size, we ask for a total of 10M
+				# So each should be at least (10M + meta) / 4 in size, so 5 each should be enough
+				echo y | lvm lvcreate --stripes 4 --stripesize "${md_chunk_size_kb}" -L 10M \
+					-n blktests_lv blktests_vg00 2> /dev/null 1>&2
+				md_dev=$(readlink /dev/mapper/blktests_vg00-blktests_lv | sed 's|\.\./||')
+				expected_atomic_write_unit_min=$(_min "$expected_atomic_write_unit_min" "$atomics_boundaries_unit_max")
+				expected_atomic_write_unit_max=$(_min "$expected_atomic_write_unit_max" "$atomics_boundaries_unit_max")
+				expected_atomic_write_max=$(_min "$expected_atomic_write_max" "$atomics_boundaries_max")
+				if [ "$atomics_boundaries_max" -eq 0 ]
+				then
+					expected_atomic_write_boundary=0
+				fi
+			fi
+
 			if [ "$personality" = dm-linear ]
 			then
 				local vgsize
@@ -416,7 +437,7 @@ _md_atomics_test() {
 				done
 			fi
 
-			if [ "$personality" = dm-linear ]
+			if [ "$personality" = dm-linear ] || [ "$personality" = dm-stripe ]
 			then
 				lvremove --force  /dev/mapper/blktests_vg00-blktests_lv  2> /dev/null 1>&2
 				vgremove --force blktests_vg00 2> /dev/null 1>&2
-- 
2.43.5