| /linux-6.3-rc2/Documentation/admin-guide/device-mapper/ |
| A D | dm-zoned.rst | 2 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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| A D | index.rst | 25 dm-zoned
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| A D | dm-crypt.rst | 129 This option is automatically enabled for host-managed zoned block devices
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| /linux-6.3-rc2/drivers/md/ |
| A D | Makefile | 28 dm-zoned-y += dm-zoned-target.o dm-zoned-metadata.o dm-zoned-reclaim.o
84 obj-$(CONFIG_DM_ZONED) += dm-zoned.o
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| A D | Kconfig | 627 tristate "Drive-managed zoned block device target support"
632 This device-mapper target takes a host-managed or host-aware zoned
634 device (drive-managed zoned block device) without any write
636 do not natively support zoned block devices but still want to
642 be called dm-zoned.
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| A D | dm-table.c | 1682 if (zoned_model == BLK_ZONED_NONE && ti_limits.zoned != BLK_ZONED_NONE) { in dm_calculate_queue_limits()
1687 zoned_model = ti_limits.zoned; in dm_calculate_queue_limits()
1723 if (limits->zoned != BLK_ZONED_NONE) { in dm_calculate_queue_limits()
1728 zoned_model = limits->zoned; in dm_calculate_queue_limits()
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| /linux-6.3-rc2/Documentation/block/ |
| A D | null_blk.rst | 137 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
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| /linux-6.3-rc2/Documentation/filesystems/ |
| A D | zonefs.rst | 10 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-6.3-rc2/Documentation/ABI/stable/ |
| A D | sysfs-block | 152 segment. For a zoned block device, either host-aware or
384 [RO] For zoned block devices (zoned attribute indicating
423 [RO] For zoned block devices (zoned attribute indicating
503 [RO] nr_zones indicates the total number of zones of a zoned
686 write operations in sequential zones of zoned block devices
691 What: /sys/block/<disk>/queue/zoned
695 [RO] zoned indicates if the device is a zoned block device and
696 the zone model of the device if it is indeed zoned. The
698 devices and "host-aware" or "host-managed" for zoned block
700 zoned block devices are described in the ZBC (Zoned Block
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| A D | sysfs-devices-node | 77 The node's zoned virtual memory statistics.
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| /linux-6.3-rc2/block/ |
| A D | Makefile | 34 obj-$(CONFIG_BLK_DEV_ZONED) += blk-zoned.o
37 obj-$(CONFIG_BLK_DEBUG_FS_ZONED)+= blk-mq-debugfs-zoned.o
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| A D | blk-settings.c | 59 lim->zoned = BLK_ZONED_NONE; in blk_set_default_limits()
688 t->zoned = max(t->zoned, b->zoned); in blk_stack_limits()
947 q->limits.zoned = model; in disk_set_zoned()
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| A D | Kconfig | 81 Block layer zoned block device support. This option enables
82 support for ZAC/ZBC/ZNS host-managed and host-aware zoned block
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| /linux-6.3-rc2/drivers/block/null_blk/ |
| A D | Makefile | 11 null_blk-$(CONFIG_BLK_DEV_ZONED) += zoned.o
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| A D | main.c | 221 module_param_named(zoned, g_zoned, bool, S_IRUGO);
222 MODULE_PARM_DESC(zoned, "Make device as a host-managed zoned block device. Default: false");
421 NULLB_DEVICE_ATTR(zoned, bool, NULL);
704 dev->zoned = g_zoned; in null_alloc_dev()
1238 if (dev->zoned) in null_transfer()
1472 if (dev->zoned) in null_handle_cmd()
1813 if (nullb->dev->zoned) { in null_config_discard()
1908 if (nullb->dev->zoned) { in null_gendisk_register()
1999 if (dev->zoned && in null_validate_conf()
2102 if (dev->zoned) { in null_add_dev()
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| A D | null_blk.h | 114 bool zoned; /* if device is zoned */ member
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| A D | zoned.c | 744 if (!dev->zoned) { in zone_cond_store()
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| /linux-6.3-rc2/drivers/scsi/ |
| A D | sd.h | 149 unsigned zoned: 2; member
239 return sdkp->zoned == 1 || sdkp->device->type == TYPE_ZBC; in sd_is_zoned()
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| A D | sd.c | 528 if (sdkp->zoned == 1) in zoned_cap_show()
530 if (sdkp->zoned == 2) in zoned_cap_show()
2971 u8 zoned; in sd_read_block_characteristics() local
2982 zoned = (vpd->data[8] >> 4) & 3; in sd_read_block_characteristics()
2999 sdkp->zoned = zoned; in sd_read_block_characteristics()
3000 if (sdkp->zoned == 1) { in sd_read_block_characteristics()
3014 q->limits.zoned == BLK_ZONED_HM ? "managed" : "aware"); in sd_read_block_characteristics()
3016 if (sdkp->zoned == 1) in sd_read_block_characteristics()
3019 else if (sdkp->zoned == 2) in sd_read_block_characteristics()
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| /linux-6.3-rc2/fs/zonefs/ |
| A D | Kconfig | 8 zonefs is a simple file system which exposes zones of a zoned block
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| /linux-6.3-rc2/include/uapi/linux/ |
| A D | virtio_blk.h | 150 } zoned; member
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| /linux-6.3-rc2/drivers/block/ |
| A D | virtio_blk.c | 698 zoned.model, &model); in virtblk_revalidate_zones()
712 zoned.model, &model); in virtblk_probe_zoned_device()
737 zoned.max_open_zones, &v); in virtblk_probe_zoned_device()
743 zoned.max_active_zones, &v); in virtblk_probe_zoned_device()
748 zoned.write_granularity, &v); in virtblk_probe_zoned_device()
762 virtio_cread(vdev, struct virtio_blk_config, zoned.zone_sectors, &v); in virtblk_probe_zoned_device()
781 zoned.max_append_sectors, &v); in virtblk_probe_zoned_device()
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| /linux-6.3-rc2/fs/btrfs/ |
| A D | Makefile | 41 btrfs-$(CONFIG_BLK_DEV_ZONED) += zoned.o
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| /linux-6.3-rc2/block/partitions/ |
| A D | core.c | 325 switch (disk->queue->limits.zoned) { in add_partition()
622 if (disk->queue->limits.zoned == BLK_ZONED_HM) { in blk_add_partitions()
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| /linux-6.3-rc2/include/linux/ |
| A D | blkdev.h | 314 enum blk_zoned_model zoned; member
649 return q->limits.zoned; in blk_queue_zoned_model()
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