summaryrefslogtreecommitdiffstats
path: root/block/Kconfig
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /block/Kconfig
parentInitial commit. (diff)
downloadlinux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz
linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'block/Kconfig')
-rw-r--r--block/Kconfig236
1 files changed, 236 insertions, 0 deletions
diff --git a/block/Kconfig b/block/Kconfig
new file mode 100644
index 000000000..a2297edfd
--- /dev/null
+++ b/block/Kconfig
@@ -0,0 +1,236 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Block layer core configuration
+#
+menuconfig BLOCK
+ bool "Enable the block layer" if EXPERT
+ default y
+ select SBITMAP
+ select SRCU
+ help
+ Provide block layer support for the kernel.
+
+ Disable this option to remove the block layer support from the
+ kernel. This may be useful for embedded devices.
+
+ If this option is disabled:
+
+ - block device files will become unusable
+ - some filesystems (such as ext3) will become unavailable.
+
+ Also, SCSI character devices and USB storage will be disabled since
+ they make use of various block layer definitions and facilities.
+
+ Say Y here unless you know you really don't want to mount disks and
+ suchlike.
+
+if BLOCK
+
+config BLK_RQ_ALLOC_TIME
+ bool
+
+config BLK_SCSI_REQUEST
+ bool
+
+config BLK_CGROUP_RWSTAT
+ bool
+
+config BLK_DEV_BSG
+ bool "Block layer SG support v4"
+ default y
+ select BLK_SCSI_REQUEST
+ help
+ Saying Y here will enable generic SG (SCSI generic) v4 support
+ for any block device.
+
+ Unlike SG v3 (aka block/scsi_ioctl.c drivers/scsi/sg.c), SG v4
+ can handle complicated SCSI commands: tagged variable length cdbs
+ with bidirectional data transfers and generic request/response
+ protocols (e.g. Task Management Functions and SMP in Serial
+ Attached SCSI).
+
+ This option is required by recent UDEV versions to properly
+ access device serial numbers, etc.
+
+ If unsure, say Y.
+
+config BLK_DEV_BSGLIB
+ bool "Block layer SG support v4 helper lib"
+ select BLK_DEV_BSG
+ select BLK_SCSI_REQUEST
+ help
+ Subsystems will normally enable this if needed. Users will not
+ normally need to manually enable this.
+
+ If unsure, say N.
+
+config BLK_DEV_INTEGRITY
+ bool "Block layer data integrity support"
+ help
+ Some storage devices allow extra information to be
+ stored/retrieved to help protect the data. The block layer
+ data integrity option provides hooks which can be used by
+ filesystems to ensure better data integrity.
+
+ Say yes here if you have a storage device that provides the
+ T10/SCSI Data Integrity Field or the T13/ATA External Path
+ Protection. If in doubt, say N.
+
+config BLK_DEV_INTEGRITY_T10
+ tristate
+ depends on BLK_DEV_INTEGRITY
+ select CRC_T10DIF
+
+config BLK_DEV_ZONED
+ bool "Zoned block device support"
+ select MQ_IOSCHED_DEADLINE
+ help
+ Block layer zoned block device support. This option enables
+ support for ZAC/ZBC/ZNS host-managed and host-aware zoned block
+ devices.
+
+ Say yes here if you have a ZAC, ZBC, or ZNS storage device.
+
+config BLK_DEV_THROTTLING
+ bool "Block layer bio throttling support"
+ depends on BLK_CGROUP=y
+ select BLK_CGROUP_RWSTAT
+ help
+ Block layer bio throttling support. It can be used to limit
+ the IO rate to a device. IO rate policies are per cgroup and
+ one needs to mount and use blkio cgroup controller for creating
+ cgroups and specifying per device IO rate policies.
+
+ See Documentation/admin-guide/cgroup-v1/blkio-controller.rst for more information.
+
+config BLK_DEV_THROTTLING_LOW
+ bool "Block throttling .low limit interface support (EXPERIMENTAL)"
+ depends on BLK_DEV_THROTTLING
+ help
+ Add .low limit interface for block throttling. The low limit is a best
+ effort limit to prioritize cgroups. Depending on the setting, the limit
+ can be used to protect cgroups in terms of bandwidth/iops and better
+ utilize disk resource.
+
+ Note, this is an experimental interface and could be changed someday.
+
+config BLK_CMDLINE_PARSER
+ bool "Block device command line partition parser"
+ help
+ Enabling this option allows you to specify the partition layout from
+ the kernel boot args. This is typically of use for embedded devices
+ which don't otherwise have any standardized method for listing the
+ partitions on a block device.
+
+ See Documentation/block/cmdline-partition.rst for more information.
+
+config BLK_WBT
+ bool "Enable support for block device writeback throttling"
+ help
+ Enabling this option enables the block layer to throttle buffered
+ background writeback from the VM, making it more smooth and having
+ less impact on foreground operations. The throttling is done
+ dynamically on an algorithm loosely based on CoDel, factoring in
+ the realtime performance of the disk.
+
+config BLK_CGROUP_IOLATENCY
+ bool "Enable support for latency based cgroup IO protection"
+ depends on BLK_CGROUP=y
+ help
+ Enabling this option enables the .latency interface for IO throttling.
+ The IO controller will attempt to maintain average IO latencies below
+ the configured latency target, throttling anybody with a higher latency
+ target than the victimized group.
+
+ Note, this is an experimental interface and could be changed someday.
+
+config BLK_CGROUP_IOCOST
+ bool "Enable support for cost model based cgroup IO controller"
+ depends on BLK_CGROUP=y
+ select BLK_RQ_IO_DATA_LEN
+ select BLK_RQ_ALLOC_TIME
+ help
+ Enabling this option enables the .weight interface for cost
+ model based proportional IO control. The IO controller
+ distributes IO capacity between different groups based on
+ their share of the overall weight distribution.
+
+config BLK_WBT_MQ
+ bool "Multiqueue writeback throttling"
+ default y
+ depends on BLK_WBT
+ help
+ Enable writeback throttling by default on multiqueue devices.
+
+config BLK_DEBUG_FS
+ bool "Block layer debugging information in debugfs"
+ default y
+ depends on DEBUG_FS
+ help
+ Include block layer debugging information in debugfs. This information
+ is mostly useful for kernel developers, but it doesn't incur any cost
+ at runtime.
+
+ Unless you are building a kernel for a tiny system, you should
+ say Y here.
+
+config BLK_DEBUG_FS_ZONED
+ bool
+ default BLK_DEBUG_FS && BLK_DEV_ZONED
+
+config BLK_SED_OPAL
+ bool "Logic for interfacing with Opal enabled SEDs"
+ help
+ Builds Logic for interfacing with Opal enabled controllers.
+ Enabling this option enables users to setup/unlock/lock
+ Locking ranges for SED devices using the Opal protocol.
+
+config BLK_INLINE_ENCRYPTION
+ bool "Enable inline encryption support in block layer"
+ help
+ Build the blk-crypto subsystem. Enabling this lets the
+ block layer handle encryption, so users can take
+ advantage of inline encryption hardware if present.
+
+config BLK_INLINE_ENCRYPTION_FALLBACK
+ bool "Enable crypto API fallback for blk-crypto"
+ depends on BLK_INLINE_ENCRYPTION
+ select CRYPTO
+ select CRYPTO_SKCIPHER
+ help
+ Enabling this lets the block layer handle inline encryption
+ by falling back to the kernel crypto API when inline
+ encryption hardware is not present.
+
+menu "Partition Types"
+
+source "block/partitions/Kconfig"
+
+endmenu
+
+endif # BLOCK
+
+config BLOCK_COMPAT
+ bool
+ depends on BLOCK && COMPAT
+ default y
+
+config BLK_MQ_PCI
+ bool
+ depends on BLOCK && PCI
+ default y
+
+config BLK_MQ_VIRTIO
+ bool
+ depends on BLOCK && VIRTIO
+ default y
+
+config BLK_MQ_RDMA
+ bool
+ depends on BLOCK && INFINIBAND
+ default y
+
+config BLK_PM
+ def_bool BLOCK && PM
+
+source "block/Kconfig.iosched"