t/zbd: fix minimum write size to sequential write required zones

[fio.git] / t / zbd / functions

diff --git a/t/zbd/functions b/t/zbd/functions
index 812320f529ed77acf11a46e921359aad75d8ebba..9a6d699910f2f94acfc95ac5d06aa8720c3ba238 100644 (file)
--- a/t/zbd/functions
+++ b/t/zbd/functions
@@ -238,18 +238,40 @@ max_open_zones() {
     fi
 }
 
+# Get minimum block size to write to seq zones. Refer the sysfs attribute
+# zone_write_granularity which shows the valid minimum size regardless of zoned
+# block device type. If the sysfs attribute is not available, refer physical
+# block size for rotational SMR drives. For non-rotational devices such as ZNS
+# devices, refer logical block size.
+min_seq_write_size() {
+       local sys_path="/sys/block/$1/queue"
+       local -i size=0
+
+       if [[ -r "$sys_path/zone_write_granularity" ]]; then
+               size=$(<"$sys_path/zone_write_granularity")
+       fi
+
+       if ((size)); then
+               echo "$size"
+       elif (($(<"$sys_path/rotational"))); then
+               cat "$sys_path/physical_block_size"
+       else
+               cat "$sys_path/logical_block_size"
+       fi
+}
+
 is_zbc() {
        local dev=$1
 
        [[ -z "$(${zbc_info} "$dev" | grep "is not a zoned block device")" ]]
 }
 
-zbc_logical_block_size() {
+zbc_physical_block_size() {
        local dev=$1
 
        ${zbc_info} "$dev" |
-               grep "logical blocks" |
-               sed -n 's/^[[:blank:]]*[0-9]* logical blocks of[[:blank:]]*//p' |
+               grep "physical blocks" |
+               sed -n 's/^[[:blank:]]*[0-9]* physical blocks of[[:blank:]]*//p' |
                sed 's/ B//'
 }