Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

2 files changed, 280 insertions, 0 deletions

diff --git a/block/Kconfig b/block/Kconfig
new file mode 100644
index 0000000000..f1364d1c0d
--- /dev/null
+++ b/block/Kconfig
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+# SPDX-License-Identifier: GPL-2.0
+#
+# Block layer core configuration
+#
+menuconfig BLOCK
+       bool "Enable the block layer" if EXPERT
+       default y
+       select FS_IOMAP
+       select SBITMAP
+       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 BLOCK_LEGACY_AUTOLOAD
+	bool "Legacy autoloading support"
+	default y
+	help
+	  Enable loading modules and creating block device instances based on
+	  accesses through their device special file.  This is a historic Linux
+	  feature and makes no sense in a udev world where device files are
+	  created on demand, but scripts that manually create device nodes and
+	  then call losetup might rely on this behavior.
+
+config BLK_RQ_ALLOC_TIME
+	bool
+
+config BLK_CGROUP_RWSTAT
+	bool
+
+config BLK_CGROUP_PUNT_BIO
+	bool
+
+config BLK_DEV_BSG_COMMON
+	tristate
+
+config BLK_ICQ
+	bool
+
+config BLK_DEV_BSGLIB
+	bool "Block layer SG support v4 helper lib"
+	select BLK_DEV_BSG_COMMON
+	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
+	select CRC64_ROCKSOFT
+
+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
+	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_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_WBT_MQ
+	bool "Enable writeback throttling by default"
+	default y
+	depends on BLK_WBT
+	help
+	Enable writeback throttling by default for request-based block devices.
+
+config BLK_CGROUP_IOLATENCY
+	bool "Enable support for latency based cgroup IO protection"
+	depends on BLK_CGROUP
+	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_FC_APPID
+	bool "Enable support to track FC I/O Traffic across cgroup applications"
+	depends on BLK_CGROUP && NVME_FC
+	help
+	  Enabling this option enables the support to track FC I/O traffic across
+	  cgroup applications. It enables the Fabric and the storage targets to
+	  identify, monitor, and handle FC traffic based on VM tags by inserting
+	  application specific identification into the FC frame.
+
+config BLK_CGROUP_IOCOST
+	bool "Enable support for cost model based cgroup IO controller"
+	depends on BLK_CGROUP
+	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_CGROUP_IOPRIO
+	bool "Cgroup I/O controller for assigning an I/O priority class"
+	depends on BLK_CGROUP
+	help
+	Enable the .prio interface for assigning an I/O priority class to
+	requests. The I/O priority class affects the order in which an I/O
+	scheduler and block devices process requests. Only some I/O schedulers
+	and some block devices support I/O priorities.
+
+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"
+	depends on KEYS
+	select PSERIES_PLPKS if PPC_PSERIES
+	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.
+
+source "block/partitions/Kconfig"
+
+config BLK_MQ_PCI
+	def_bool PCI
+
+config BLK_MQ_VIRTIO
+	bool
+	depends on VIRTIO
+	default y
+
+config BLK_PM
+	def_bool PM
+
+# do not use in new code
+config BLOCK_HOLDER_DEPRECATED
+	bool
+
+config BLK_MQ_STACKING
+	bool
+
+source "block/Kconfig.iosched"
+
+endif # BLOCK
diff --git a/block/Kconfig.iosched b/block/Kconfig.iosched
new file mode 100644
index 0000000000..27f11320b8
--- /dev/null
+++ b/block/Kconfig.iosched
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: GPL-2.0
+menu "IO Schedulers"
+
+config MQ_IOSCHED_DEADLINE
+	tristate "MQ deadline I/O scheduler"
+	default y
+	help
+	  MQ version of the deadline IO scheduler.
+
+config MQ_IOSCHED_KYBER
+	tristate "Kyber I/O scheduler"
+	default y
+	help
+	  The Kyber I/O scheduler is a low-overhead scheduler suitable for
+	  multiqueue and other fast devices. Given target latencies for reads and
+	  synchronous writes, it will self-tune queue depths to achieve that
+	  goal.
+
+config IOSCHED_BFQ
+	tristate "BFQ I/O scheduler"
+	select BLK_ICQ
+	help
+	BFQ I/O scheduler for BLK-MQ. BFQ distributes the bandwidth of
+	of the device among all processes according to their weights,
+	regardless of the device parameters and with any workload. It
+	also guarantees a low latency to interactive and soft
+	real-time applications.  Details in
+	Documentation/block/bfq-iosched.rst
+
+config BFQ_GROUP_IOSCHED
+       bool "BFQ hierarchical scheduling support"
+       depends on IOSCHED_BFQ && BLK_CGROUP
+       default y
+       select BLK_CGROUP_RWSTAT
+	help
+
+       Enable hierarchical scheduling in BFQ, using the blkio
+       (cgroups-v1) or io (cgroups-v2) controller.
+
+config BFQ_CGROUP_DEBUG
+	bool "BFQ IO controller debugging"
+	depends on BFQ_GROUP_IOSCHED
+	help
+	Enable some debugging help. Currently it exports additional stat
+	files in a cgroup which can be useful for debugging.
+
+endmenu