3 blkzone=$(type -p blkzone 2>/dev/null)
4 sg_inq=$(type -p sg_inq 2>/dev/null)
5 zbc_report_zones=$(type -p zbc_report_zones 2>/dev/null)
6 zbc_reset_zone=$(type -p zbc_reset_zone 2>/dev/null)
7 zbc_info=$(type -p zbc_info 2>/dev/null)
8 if [ -z "${blkzone}" ] &&
9 { [ -z "${zbc_report_zones}" ] || [ -z "${zbc_reset_zone}" ]; }; then
10 echo "Error: neither blkzone nor zbc_report_zones is available"
14 if [ -n "${use_libzbc}" ] &&
15 { [ -z "${zbc_report_zones}" ] || [ -z "${zbc_reset_zone}" ] ||
16 [ -z "${zbc_info}" ]; }; then
17 echo "Error: zbc_report_zones, or zbc_reset_zone or zbc_info is not available"
18 echo "Error: reinstall libzbc tools"
22 # Reports the starting sector and length of the first sequential zone of device
24 first_sequential_zone() {
27 if [ -n "${blkzone}" ] && [ ! -n "${use_libzbc}" ]; then
28 ${blkzone} report "$dev" |
29 sed -n 's/^[[:blank:]]*start:[[:blank:]]\([0-9a-zA-Z]*\),[[:blank:]]len[[:blank:]]\([0-9a-zA-Z]*\),.*type:[[:blank:]]2(.*/\1 \2/p' |
31 read -r starting_sector length &&
32 # Convert from hex to decimal
33 echo $((starting_sector)) $((length))
36 ${zbc_report_zones} "$dev" |
37 sed -n 's/^Zone [0-9]*: type 0x2 .*, sector \([0-9]*\), \([0-9]*\) sectors,.*$/\1 \2/p' |
45 if [ -n "${sg_inq}" ] && [ ! -n "${use_libzbc}" ]; then
46 if ! ${sg_inq} -e --page=0xB6 --len=20 --hex "$dev" \
47 > /dev/null 2>&1; then
48 # Non scsi device such as null_blk can not return max open zones.
52 ${sg_inq} -e --page=0xB6 --len=20 --hex "$dev" | tail -1 |
54 read -r offset b0 b1 b2 b3 trailer || return $?
55 # Convert from hex to decimal
56 max_nr_open_zones=$((0x${b0}))
57 max_nr_open_zones=$((max_nr_open_zones * 256 + 0x${b1}))
58 max_nr_open_zones=$((max_nr_open_zones * 256 + 0x${b2}))
59 max_nr_open_zones=$((max_nr_open_zones * 256 + 0x${b3}))
60 echo ${max_nr_open_zones}
64 ${zbc_report_zones} "$dev" |
65 sed -n 's/^[[:blank:]]*Maximum number of open sequential write required zones:[[:blank:]]*//p'
72 [[ -z "$(${zbc_info} "$dev" | grep "is not a zoned block device")" ]]
75 zbc_logical_block_size() {
79 grep "logical blocks" |
80 sed -n 's/^[[:blank:]]*[0-9]* logical blocks of[[:blank:]]*//p' |
88 grep "512-bytes sectors" |
89 sed -e 's/[[:blank:]]*\([0-9]*\)512-bytes sectors.*/\1/'
92 # Reset the write pointer of one zone on device $1 at offset $2. The offset
93 # must be specified in units of 512 byte sectors. Offset -1 means reset all
96 local dev=$1 offset=$2 sectors
98 if [ -n "${blkzone}" ] && [ ! -n "${use_libzbc}" ]; then
99 if [ "$offset" -lt 0 ]; then
100 sectors=$(<"/sys/class/block/${dev#/dev/}/size")
101 ${blkzone} reset -o "${offset}" -l "$sectors" "$dev"
103 ${blkzone} reset -o "${offset}" -c 1 "$dev"
106 if [ "$offset" -lt 0 ]; then
107 ${zbc_reset_zone} -all "$dev" "${offset}" >/dev/null
109 ${zbc_reset_zone} -sector "$dev" "${offset}" >/dev/null
114 # Extract the number of bytes that have been transferred from a line like
115 # READ: bw=6847KiB/s (7011kB/s), 6847KiB/s-6847KiB/s (7011kB/s-7011kB/s), io=257MiB (269MB), run=38406-38406msec
117 sed -n 's/^[[:blank:]]*'"$1"'.*, io=\([^[:blank:]]*\).*/\1/p' |
121 # Parse <number>.<number><suffix> into n1, n2 and s. See also
124 n1=${io%${io##*([0-9])}}
125 s=${io#${io%%*([a-zA-Z])}}
137 [ -n "$n1" ] || return 1
138 echo $(((n1 << m) + (n2 << m) / 1000))
153 count=$(sed -n 's/^.*write:[^;]*; \([0-9]*\) zone resets$/\1/p')