Kernel 5.9 zone descriptor interface adds the new zone capacity field defining the range of sectors usable within a zone. This patch series adds support for this new field. The 1st patch adds zone capacity support to zonemode=zbd. Get zone capacity values of each zone and adjust io_u to meet the zone capacity limit. The 2nd patch adds a new option zonecapacity which allows to test zone capacity handling by fio using regular block devices. Other four patches extend t/zbd test scripts for zone capacity. Of note is that the zone capacity is always equal to the zone size for SCSI drives. For NVMe ZNS and nullblk zoned drives, the zone capacity can be smaller than the zone size. This series can be applied on top of another series 'zbd: Fix initial zone write pointer of regular block devices' [1]. [1] https://www.spinics.net/lists/fio/msg08670.html Hans Holmberg (3): options: Add zonecapacity option for zonemode=zbd t/zbd: Support testing zone capacity smaller than zone size t/zbd: Add test case to check zonecapacity option Shin'ichiro Kawasaki (3): zns: Support zone capacity smaller than zone size t/zbd: Mandate blkzone capacity report for devices with zone capacity t/zbd: Support testing zone capacity smaller than zone size with null_blk HOWTO | 18 +++- cconv.c | 2 + configure | 19 +++++ engines/libzbc.c | 1 + fio.1 | 13 ++- options.c | 11 +++ oslib/linux-blkzoned.c | 11 +++ t/zbd/functions | 82 +++++++++++++++++++ t/zbd/run-tests-against-zoned-nullb | 30 ++++++- t/zbd/test-zbd-support | 123 ++++++++++++++++++++-------- thread_options.h | 2 + zbd.c | 85 +++++++++++++++---- zbd.h | 2 + zbd_types.h | 1 + 14 files changed, 342 insertions(+), 58 deletions(-) -- 2.26.2
