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/linux-6.15/Documentation/admin-guide/device-mapper/
H A Ddm-zoned.rst2 dm-zoned
5 The dm-zoned device mapper target exposes a zoned block device (ZBC and
7 pattern constraints. In effect, it implements a drive-managed zoned
10 host-managed zoned block devices and can mitigate the potential
12 host-aware zoned block devices.
14 For a more detailed description of the zoned block device models and
25 host-managed disk with 256 MB zones, dm-zoned memory usage per disk
29 dm-zoned target devices are formatted and checked using the dmzadm
32 https://github.com/hgst/dm-zoned-tools
38 write accesses to the sequential zones of a zoned block device.
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H A Dindex.rst25 dm-zoned
/linux-6.15/drivers/md/
H A DMakefile28 dm-zoned-y += dm-zoned-target.o dm-zoned-metadata.o dm-zoned-reclaim.o
81 obj-$(CONFIG_DM_ZONED) += dm-zoned.o
H A Ddm-table.c1496 bool *zoned = data; in device_not_zoned() local
1498 return bdev_is_zoned(dev->bdev) != *zoned; in device_not_zoned()
1534 &zoned)) in dm_table_supports_zoned()
1537 if (zoned) in dm_table_supports_zoned()
1563 if (!zoned) in validate_hardware_zoned()
1566 if (!dm_table_supports_zoned(t, zoned)) { in validate_hardware_zoned()
1593 bool zoned = false; in dm_calculate_queue_limits() local
1623 if (!zoned && (ti_limits.features & BLK_FEAT_ZONED)) { in dm_calculate_queue_limits()
1628 zoned = (ti_limits.features & BLK_FEAT_ZONED); in dm_calculate_queue_limits()
1681 zoned = limits->features & BLK_FEAT_ZONED; in dm_calculate_queue_limits()
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H A DKconfig631 tristate "Drive-managed zoned block device target support"
636 This device-mapper target takes a host-managed or host-aware zoned
638 device (drive-managed zoned block device) without any write
640 do not natively support zoned block devices but still want to
646 be called dm-zoned.
/linux-6.15/Documentation/block/
H A Dnull_blk.rst137 zoned=[0/1]: Default: 0
138 Device is a random-access or a zoned block device.
142 1 Block device is exposed as a host-managed zoned block device. Requires
147 Per zone size when exposed as a zoned block device. Must be a power of two.
150 The number of conventional zones to create when block device is zoned. If
/linux-6.15/Documentation/filesystems/
H A Dzonefs.rst10 zonefs is a very simple file system exposing each zone of a zoned block device
11 as a file. Unlike a regular POSIX-compliant file system with native zoned block
13 constraint of zoned block devices to the user. Files representing sequential
19 the implementation of zoned block device support in applications by replacing
23 tree structures (such as used in RocksDB and LevelDB) on zoned block devices
52 Solid State Disks (SSD) storage devices can also implement a zoned interface
55 committee aiming at adding a zoned storage interface to the NVMe protocol.
60 Zonefs exposes the zones of a zoned block device as files. The files
151 for zoned block devices on device initialization.
359 where <dev> is the name of the mounted zoned block device.
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/linux-6.15/Documentation/ABI/stable/
H A Dsysfs-block236 segment. For a zoned block device, either host-aware or
488 [RO] For zoned block devices (zoned attribute indicating
527 [RO] For zoned block devices (zoned attribute indicating
607 [RO] nr_zones indicates the total number of zones of a zoned
781 write operations in sequential zones of zoned block devices
786 What: /sys/block/<disk>/queue/zoned
790 [RO] zoned indicates if the device is a zoned block device and
791 the zone model of the device if it is indeed zoned. The
793 devices and "host-aware" or "host-managed" for zoned block
795 zoned block devices are described in the ZBC (Zoned Block
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H A Dsysfs-devices-node77 The node's zoned virtual memory statistics.
/linux-6.15/drivers/block/null_blk/
H A DMakefile11 null_blk-$(CONFIG_BLK_DEV_ZONED) += zoned.o
H A Dmain.c237 module_param_named(zoned, g_zoned, bool, S_IRUGO);
238 MODULE_PARM_DESC(zoned, "Make device as a host-managed zoned block device. Default: false");
462 NULLB_DEVICE_ATTR(zoned, bool, NULL);
806 dev->zoned = g_zoned; in null_alloc_dev()
1246 if (dev->zoned) in null_transfer()
1444 if (dev->zoned) in null_handle_cmd()
1790 if (nullb->dev->zoned) { in null_config_discard()
1910 if (dev->zoned && in null_validate_conf()
1982 if (dev->zoned) { in null_add_dev()
2036 if (nullb->dev->zoned) { in null_add_dev()
H A Dnull_blk.h105 bool zoned; /* if device is zoned */ member
/linux-6.15/fs/zonefs/
H A DKconfig8 zonefs is a simple file system which exposes zones of a zoned block
/linux-6.15/include/uapi/linux/
H A Dvirtio_blk.h150 } zoned; member
H A Dublk_cmd.h455 struct ublk_param_zoned zoned; member
/linux-6.15/block/
H A DMakefile31 obj-$(CONFIG_BLK_DEV_ZONED) += blk-zoned.o
H A DKconfig100 Block layer zoned block device support. This option enables
101 support for ZAC/ZBC/ZNS host-managed and host-aware zoned block
/linux-6.15/drivers/block/
H A Dvirtio_blk.c728 zoned.max_open_zones, &v); in virtblk_read_zoned_limits()
733 zoned.max_active_zones, &v); in virtblk_read_zoned_limits()
738 zoned.write_granularity, &wg); in virtblk_read_zoned_limits()
752 virtio_cread(vdev, struct virtio_blk_config, zoned.zone_sectors, in virtblk_read_zoned_limits()
770 zoned.max_append_sectors, &v); in virtblk_read_zoned_limits()
1411 virtio_cread(vdev, struct virtio_blk_config, zoned.model, &model); in virtblk_read_limits()
/linux-6.15/fs/btrfs/
H A DMakefile40 btrfs-$(CONFIG_BLK_DEV_ZONED) += zoned.o
H A DKconfig100 support RAID1* profiles on zoned devices,
/linux-6.15/drivers/scsi/
H A Dsd.h153 unsigned zoned: 2; member
/linux-6.15/Documentation/admin-guide/
H A Dxfs.rst133 These options are only available for zoned rt file systems.
156 zoned rt device. Many open zones aids file data separation
160 by the capabilities and the size of the zoned rt device.
565 For zoned file systems, the following attributes are exposed in:
567 /sys/fs/xfs/<dev>/zoned/
572 is limited by the capabilities of the backing zoned device, file system
/linux-6.15/drivers/scsi/pm8001/
H A Dpm8001_init.c61 MODULE_PARM_DESC(zoned, "Use MSIX interrupts. Default: true");
65 MODULE_PARM_DESC(zoned, "Use MSIX interrupts. Default: true");
69 MODULE_PARM_DESC(zoned, "Get WWN from the controller. Default: true");
/linux-6.15/Documentation/ABI/testing/
H A Dsysfs-fs-f2fs644 the zone capacity reported by underlying zoned device.
809 number, F2FS do not garbage collection for zoned devices through the
816 number, F2FS boosts garbage collection for zoned devices through the
823 for zoned deivces. The initial value of it is 95(%). F2FS will stop the
843 Description: For several zoned storage devices, vendors will provide extra space which
/linux-6.15/fs/xfs/
H A Dxfs_mount.h433 __XFS_HAS_FEAT(zoned, ZONED) in __XFS_ADD_FEAT()

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