As a preparation for the zone mapping test case, add several helper
functions. _find_last_sequential_zone() and
_find_sequential_zone_in_middle() help to select test target zones.
_test_dev_is_logical() checks TEST_DEV is the valid test target.
_test_dev_has_dm_map() helps to check that the dm target is linear or
flakey. _get_dev_container_and_sector() helps to get the container device
and sector mappings.
---
tests/zbd/rc | 133 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 133 insertions(+)
diff --git a/tests/zbd/rc b/tests/zbd/rc
index 5f04c84..792b83d 100644
--- a/tests/zbd/rc
+++ b/tests/zbd/rc
@@ -193,6 +193,42 @@ _find_first_sequential_zone() {
return 1
}
+_find_last_sequential_zone() {
+ for ((idx = REPORTED_COUNT - 1; idx > 0; idx--)); do
+ if ((ZONE_TYPES[idx] == ZONE_TYPE_SEQ_WRITE_REQUIRED)); then
+ echo "${idx}"
+ return 0
+ fi
+ done
+
+ echo "-1"
+ return 1
+}
+
+# Try to find a sequential required zone between given two zone indices
+_find_sequential_zone_in_middle() {
+ local -i s=${1}
+ local -i e=${2}
+ local -i idx=$(((s + e) / 2))
+ local -i i=1
+
+ while ((idx != s && idx != e)); do
+ if ((ZONE_TYPES[idx] == ZONE_TYPE_SEQ_WRITE_REQUIRED)); then
+ echo "${idx}"
+ return 0
+ fi
+ if ((i%2 == 0)); then
+ $((idx += i))
+ else
+ $((idx -= i))
+ fi
+ $((i++))
+ done
+
+ echo "-1"
+ return 1
+}
+
# Search zones and find two contiguous sequential required zones.
# Return index of the first zone of the found two zones.
# Call _get_blkzone_report() beforehand.
@@ -210,3 +246,100 @@ _find_two_contiguous_seq_zones() {
echo "Contiguous sequential write required zones not found"
return 1
}
+
+_test_dev_is_dm() {
+ if [[ ! -r "${TEST_DEV_SYSFS}/dm/name" ]]; then
+ SKIP_REASON="$TEST_DEV is not device-mapper"
+ return 1
+ fi
+ return 0
+}
+
+_test_dev_is_logical() {
+ if ! _test_dev_is_partition && ! _test_dev_is_dm; then
+ SKIP_REASON="$TEST_DEV is not a logical device"
+ return 1
+ fi
+ return 0
+}
+
+_test_dev_has_dm_map() {
+ local target_type=${1}
+ local dm_name
+
+ dm_name=$(<"${TEST_DEV_SYSFS}/dm/name")
+ if ! dmsetup status "${dm_name}" | grep -qe "${target_type}"; then
+ SKIP_REASON="$TEST_DEV does not have ${target_type} map"
+ return 1
+ fi
+ if dmsetup status "${dm_name}" | grep -v "${target_type}"; then
+ SKIP_REASON="$TEST_DEV has map other than ${target_type}"
+ return 1
+ fi
+ return 0
+}
+
+# Get device file path from the device ID "major:minor".
+_get_dev_path_by_id() {
+ for d in /sys/block/*; do
+ if [[ ! -r "${d}/dev" ]]; then
+ continue
+ fi
+ if [[ "${1}" == "$(<"${d}/dev")" ]]; then
+ echo "/dev/${d##*/}"
+ return 0
+ fi
+ done
+ return 1
+}
+
+# Given sector of TEST_DEV, return the device which contain the sector and
+# corresponding sector of the container device.
+_get_dev_container_and_sector() {
+ local -i sector=${1}
+ local cont_dev
+ local -i offset
+ local -a tbl_line
+
+ if _test_dev_is_partition; then
+ offset=$(<"${TEST_DEV_PART_SYSFS}/start")
+ cont_dev=$(_get_dev_path_by_id "$(<"${TEST_DEV_SYSFS}/dev")")
+ echo "${cont_dev}" "$((offset + sector))"
+ return 0
+ fi
+
+ if ! _test_dev_is_dm; then
+ echo "${TEST_DEV} is not a logical device"
+ return 1
+ fi
+ if ! _test_dev_has_dm_map linear &&
+ ! _test_dev_has_dm_map flakey; then
+ echo -n "dm mapping test other than linear/flakey is"
+ echo "not implemented"
+ return 1
+ fi
+
+ # Parse dm table lines for dm-linear or dm-flakey target
+ while read -r -a tbl_line; do
+ local -i map_start=${tbl_line[0]}
+ local -i map_end=$((tbl_line[0] + tbl_line[1]))
+
+ if ((sector < map_start)) || (((map_end) <= sector)); then
+ continue
+ fi
+
+ offset=${tbl_line[4]}
+ if ! cont_dev=$(_get_dev_path_by_id "${tbl_line[3]}"); then
+ echo -n "Cannot access to container device: "
+ echo "${tbl_line[3]}"
+ return 1
+ fi
+
+ echo "${cont_dev}" "$((offset + sector - map_start))"
+ return 0
+
+ done < <(dmsetup table "$(<"${TEST_DEV_SYSFS}/dm/name")")
+
+ echo -n "Cannot find container device of ${TEST_DEV}"
+ return 1
+}
--
2.21.0
