#!/bin/bash
-# To do: switch to blkzone once blkzone reset works correctly.
-blkzone=
-#blkzone=$(type -p blkzone 2>/dev/null)
+blkzone=$(type -p blkzone 2>/dev/null)
+sg_inq=$(type -p sg_inq 2>/dev/null)
zbc_report_zones=$(type -p zbc_report_zones 2>/dev/null)
zbc_reset_zone=$(type -p zbc_reset_zone 2>/dev/null)
+zbc_info=$(type -p zbc_info 2>/dev/null)
if [ -z "${blkzone}" ] &&
{ [ -z "${zbc_report_zones}" ] || [ -z "${zbc_reset_zone}" ]; }; then
echo "Error: neither blkzone nor zbc_report_zones is available"
exit 1
fi
+if [ -n "${use_libzbc}" ] &&
+ { [ -z "${zbc_report_zones}" ] || [ -z "${zbc_reset_zone}" ] ||
+ [ -z "${zbc_info}" ]; }; then
+ echo "Error: zbc_report_zones, or zbc_reset_zone or zbc_info is not available"
+ echo "Error: reinstall libzbc tools"
+ exit 1
+fi
+
+blkzone_reports_capacity() {
+ local dev="${1}"
+
+ [[ -n "${blkzone}" ]] &&
+ "${blkzone}" report -c 1 -o 0 "${dev}" | grep -q 'cap '
+}
+
+# Whether or not $1 (/dev/...) is a NVME ZNS device.
+is_nvme_zns() {
+ local s
+
+ s=/sys/block/$(basename "${1}")/device/subsystem
+
+ if [[ ! -h "${s}" || $(realpath "${s}") != /sys/class/nvme ]]; then
+ return 1
+ fi
+
+ [[ $(</sys/block/$(basename "${1}")/queue/zoned) == host-managed ]]
+}
+
+# Whether or not $1 (/dev/...) is a null_blk device with zone capacity smaller
+# than zone size.
+is_nullb_with_zone_cap() {
+ local f
+
+ f=/sys/kernel/config/nullb/$(basename "${1}")
+ [[ -r "${f}/zone_capacity" &&
+ $(<"${f}/zone_capacity") -lt $(<"${f}/zone_size") ]]
+}
+
+# Check if blkzone is available and suitable for the test target device. If not
+# available, print error message and return 1. Otherwise return 0.
+check_blkzone() {
+ local dev="${1}"
+
+ # If the device supports zone capacity, mandate zone capacity report by
+ # blkzone.
+ if (is_nvme_zns "${dev}" || is_nullb_with_zone_cap "${dev}") &&
+ ! blkzone_reports_capacity "${dev}"; then
+ echo "Error: blkzone does not report zone capacity"
+ echo "Error: install latest util-linux with blkzone"
+ return 1
+ fi
+}
+
# Reports the starting sector and length of the first sequential zone of device
# $1.
first_sequential_zone() {
local dev=$1
- if [ -n "${blkzone}" ]; then
+ if [ -n "${blkzone}" ] && [ ! -n "${use_libzbc}" ]; then
${blkzone} report "$dev" |
sed -n 's/^[[:blank:]]*start:[[:blank:]]\([0-9a-zA-Z]*\),[[:blank:]]len[[:blank:]]\([0-9a-zA-Z]*\),.*type:[[:blank:]]2(.*/\1 \2/p' |
{
fi
}
+# Reports the summed zone capacity of $1 number of zones starting from offset $2
+# on device $3.
+total_zone_capacity() {
+ local nr_zones=$1
+ local sector=$(($2 / 512))
+ local dev=$3
+ local capacity=0 num
+ local grep_str
+
+ if [ -z "$is_zbd" ]; then
+ # For regular block devices, handle zone size as zone capacity.
+ echo $((zone_size * nr_zones))
+ return
+ fi
+
+ if [ -n "${blkzone}" ] && [ ! -n "${use_libzbc}" ]; then
+ if blkzone_reports_capacity "${dev}"; then
+ grep_str='cap \K[0-9a-zA-Z]*'
+ else
+ # If zone capacity is not reported, refer zone length.
+ grep_str='len \K[0-9a-zA-Z]*'
+ fi
+ while read num; do
+ capacity=$((capacity + num))
+ done < <(${blkzone} report -c "$nr_zones" -o "$sector" "$dev" |
+ grep -Po "${grep_str}")
+ else
+ # ZBC devices do not have zone capacity. Use zone size.
+ while read num; do
+ capacity=$((capacity + num))
+ done < <(${zbc_report_zones} -nz "$nr_zones" -start "$sector" \
+ "$dev" | grep -Po 'sector [0-9]*, \K[0-9]*')
+ fi
+
+ echo $((capacity * 512))
+}
+
max_open_zones() {
local dev=$1
- if [ -n "${blkzone}" ]; then
- # To do: query the maximum number of open zones using sg_raw
- return 1
+ if [ -n "${sg_inq}" ] && [ ! -n "${use_libzbc}" ]; then
+ if ! ${sg_inq} -e --page=0xB6 --len=20 --hex "$dev" \
+ > /dev/null 2>&1; then
+ # Non scsi device such as null_blk can not return max open zones.
+ # Use default value.
+ echo 128
+ else
+ ${sg_inq} -e --page=0xB6 --len=20 --hex "$dev" | tail -1 |
+ {
+ read -r offset b0 b1 b2 b3 trailer || return $?
+ # Convert from hex to decimal
+ max_nr_open_zones=$((0x${b0}))
+ max_nr_open_zones=$((max_nr_open_zones * 256 + 0x${b1}))
+ max_nr_open_zones=$((max_nr_open_zones * 256 + 0x${b2}))
+ max_nr_open_zones=$((max_nr_open_zones * 256 + 0x${b3}))
+ echo ${max_nr_open_zones}
+ }
+ fi
else
${zbc_report_zones} "$dev" |
sed -n 's/^[[:blank:]]*Maximum number of open sequential write required zones:[[:blank:]]*//p'
fi
}
+is_zbc() {
+ local dev=$1
+
+ [[ -z "$(${zbc_info} "$dev" | grep "is not a zoned block device")" ]]
+}
+
+zbc_logical_block_size() {
+ local dev=$1
+
+ ${zbc_info} "$dev" |
+ grep "logical blocks" |
+ sed -n 's/^[[:blank:]]*[0-9]* logical blocks of[[:blank:]]*//p' |
+ sed 's/ B//'
+}
+
+zbc_disk_sectors() {
+ local dev=$1
+
+ zbc_info "$dev" |
+ grep "512-bytes sectors" |
+ sed -e 's/[[:blank:]]*\([0-9]*\)512-bytes sectors.*/\1/'
+}
+
# Reset the write pointer of one zone on device $1 at offset $2. The offset
# must be specified in units of 512 byte sectors. Offset -1 means reset all
# zones.
reset_zone() {
local dev=$1 offset=$2 sectors
- if [ -n "${blkzone}" ]; then
+ if [ -n "${blkzone}" ] && [ ! -n "${use_libzbc}" ]; then
if [ "$offset" -lt 0 ]; then
- sectors=$(<"/sys/class/block/${dev#/dev/}/size")
- ${blkzone} reset -o "${offset}" -l "$sectors" "$dev"
+ ${blkzone} reset "$dev"
else
${blkzone} reset -o "${offset}" -c 1 "$dev"
fi
else
if [ "$offset" -lt 0 ]; then
- ${zbc_reset_zone} -all "$dev" "${offset}" >/dev/null
+ ${zbc_reset_zone} -all "$dev" >/dev/null
else
${zbc_reset_zone} -sector "$dev" "${offset}" >/dev/null
fi
}
fio_reset_count() {
- sed -n 's/^.*write:[^;]*; \([0-9]*\) zone resets$/\1/p'
+ local count
+
+ count=$(sed -n 's/^.*write:[^;]*; \([0-9]*\) zone resets$/\1/p')
+ echo "${count:-0}"
}
projects / fio.git / blobdiff