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-rw-r--r--Documentation/ABI/README4
-rw-r--r--Documentation/ABI/obsolete/automount-tracefs-debugfs20
-rw-r--r--Documentation/ABI/stable/sysfs-devices-node9
-rw-r--r--Documentation/ABI/testing/debugfs-cxl2
-rw-r--r--Documentation/ABI/testing/debugfs-driver-qat2
-rw-r--r--Documentation/ABI/testing/debugfs-driver-qat_telemetry10
-rw-r--r--Documentation/ABI/testing/sysfs-driver-qat52
-rw-r--r--Documentation/ABI/testing/sysfs-driver-qat_rl14
-rw-r--r--Documentation/ABI/testing/sysfs-driver-ufs83
-rw-r--r--Documentation/ABI/testing/sysfs-firmware-efi7
-rw-r--r--Documentation/ABI/testing/sysfs-fs-f2fs22
-rw-r--r--Documentation/ABI/testing/sysfs-kernel-mm-damon29
12 files changed, 217 insertions, 37 deletions
diff --git a/Documentation/ABI/README b/Documentation/ABI/README
index ef0e6d11e919..315fffe1f831 100644
--- a/Documentation/ABI/README
+++ b/Documentation/ABI/README
@@ -46,7 +46,9 @@ Every file in these directories will contain the following information:
What: Short description of the interface
Date: Date created
-KernelVersion: Kernel version this feature first showed up in.
+KernelVersion: (Optional) Kernel version this feature first showed up in.
+ Note: git history often provides more accurate version
+ info, so this field may be omitted.
Contact: Primary contact for this interface (may be a mailing list)
Description: Long description of the interface and how to use it.
Users: All users of this interface who wish to be notified when
diff --git a/Documentation/ABI/obsolete/automount-tracefs-debugfs b/Documentation/ABI/obsolete/automount-tracefs-debugfs
new file mode 100644
index 000000000000..a5196ec78cb5
--- /dev/null
+++ b/Documentation/ABI/obsolete/automount-tracefs-debugfs
@@ -0,0 +1,20 @@
+What: /sys/kernel/debug/tracing
+Date: May 2008
+KernelVersion: 2.6.27
+Contact: linux-trace-kernel@vger.kernel.org
+Description:
+
+ The ftrace was first added to the kernel, its interface was placed
+ into the debugfs file system under the "tracing" directory. Access
+ to the files were in /sys/kernel/debug/tracing. As systems wanted
+ access to the tracing interface without having to enable debugfs, a
+ new interface was created called "tracefs". This was a stand alone
+ file system and was usually mounted in /sys/kernel/tracing.
+
+ To allow older tooling to continue to operate, when mounting
+ debugfs, the tracefs file system would automatically get mounted in
+ the "tracing" directory of debugfs. The tracefs interface was added
+ in January 2015 in the v4.1 kernel.
+
+ All tooling should now be using tracefs directly and the "tracing"
+ directory in debugfs should be removed by January 2030.
diff --git a/Documentation/ABI/stable/sysfs-devices-node b/Documentation/ABI/stable/sysfs-devices-node
index a02707cb7cbc..2d0e023f22a7 100644
--- a/Documentation/ABI/stable/sysfs-devices-node
+++ b/Documentation/ABI/stable/sysfs-devices-node
@@ -227,3 +227,12 @@ Contact: Jiaqi Yan <jiaqiyan@google.com>
Description:
Of the raw poisoned pages on a NUMA node, how many pages are
recovered by memory error recovery attempt.
+
+What: /sys/devices/system/node/nodeX/reclaim
+Date: June 2025
+Contact: Linux Memory Management list <linux-mm@kvack.org>
+Description:
+ Perform user-triggered proactive reclaim on a NUMA node.
+ This interface is equivalent to the memcg variant.
+
+ See Documentation/admin-guide/cgroup-v2.rst
diff --git a/Documentation/ABI/testing/debugfs-cxl b/Documentation/ABI/testing/debugfs-cxl
index 12488c14be64..e95e21f131e9 100644
--- a/Documentation/ABI/testing/debugfs-cxl
+++ b/Documentation/ABI/testing/debugfs-cxl
@@ -20,7 +20,7 @@ Description:
visible for devices supporting the capability.
-What: /sys/kernel/debug/memX/clear_poison
+What: /sys/kernel/debug/cxl/memX/clear_poison
Date: April, 2023
KernelVersion: v6.4
Contact: linux-cxl@vger.kernel.org
diff --git a/Documentation/ABI/testing/debugfs-driver-qat b/Documentation/ABI/testing/debugfs-driver-qat
index bd6793760f29..3f1efbbad6ca 100644
--- a/Documentation/ABI/testing/debugfs-driver-qat
+++ b/Documentation/ABI/testing/debugfs-driver-qat
@@ -67,7 +67,7 @@ Contact: qat-linux@intel.com
Description: (RO) Read returns power management information specific to the
QAT device.
- This attribute is only available for qat_4xxx devices.
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
What: /sys/kernel/debug/qat_<device>_<BDF>/cnv_errors
Date: January 2024
diff --git a/Documentation/ABI/testing/debugfs-driver-qat_telemetry b/Documentation/ABI/testing/debugfs-driver-qat_telemetry
index eacee2072088..0dfd8d97e169 100644
--- a/Documentation/ABI/testing/debugfs-driver-qat_telemetry
+++ b/Documentation/ABI/testing/debugfs-driver-qat_telemetry
@@ -32,7 +32,7 @@ Description: (RW) Enables/disables the reporting of telemetry metrics.
echo 0 > /sys/kernel/debug/qat_4xxx_0000:6b:00.0/telemetry/control
- This attribute is only available for qat_4xxx devices.
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
What: /sys/kernel/debug/qat_<device>_<BDF>/telemetry/device_data
Date: March 2024
@@ -67,6 +67,10 @@ Description: (RO) Reports device telemetry counters.
exec_xlt<N> execution count of Translator slice N
util_dcpr<N> utilization of Decompression slice N [%]
exec_dcpr<N> execution count of Decompression slice N
+ util_cnv<N> utilization of Compression and verify slice N [%]
+ exec_cnv<N> execution count of Compression and verify slice N
+ util_dcprz<N> utilization of Decompression slice N [%]
+ exec_dcprz<N> execution count of Decompression slice N
util_pke<N> utilization of PKE N [%]
exec_pke<N> execution count of PKE N
util_ucs<N> utilization of UCS slice N [%]
@@ -100,7 +104,7 @@ Description: (RO) Reports device telemetry counters.
If a device lacks of a specific accelerator, the corresponding
attribute is not reported.
- This attribute is only available for qat_4xxx devices.
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
What: /sys/kernel/debug/qat_<device>_<BDF>/telemetry/rp_<A/B/C/D>_data
Date: March 2024
@@ -225,4 +229,4 @@ Description: (RW) Selects up to 4 Ring Pairs (RP) to monitor, one per file,
``rp2srv`` from sysfs.
See Documentation/ABI/testing/sysfs-driver-qat for details.
- This attribute is only available for qat_4xxx devices.
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
diff --git a/Documentation/ABI/testing/sysfs-driver-qat b/Documentation/ABI/testing/sysfs-driver-qat
index f290e77cd590..b0561b9fc4eb 100644
--- a/Documentation/ABI/testing/sysfs-driver-qat
+++ b/Documentation/ABI/testing/sysfs-driver-qat
@@ -14,7 +14,7 @@ Description: (RW) Reports the current state of the QAT device. Write to
It is possible to transition the device from up to down only
if the device is up and vice versa.
- This attribute is only available for qat_4xxx devices.
+ This attribute is available for qat_4xxx and qat_6xxx devices.
What: /sys/bus/pci/devices/<BDF>/qat/cfg_services
Date: June 2022
@@ -23,24 +23,28 @@ Contact: qat-linux@intel.com
Description: (RW) Reports the current configuration of the QAT device.
Write to the file to change the configured services.
- The values are:
-
- * sym;asym: the device is configured for running crypto
- services
- * asym;sym: identical to sym;asym
- * dc: the device is configured for running compression services
- * dcc: identical to dc but enables the dc chaining feature,
- hash then compression. If this is not required chose dc
- * sym: the device is configured for running symmetric crypto
- services
- * asym: the device is configured for running asymmetric crypto
- services
- * asym;dc: the device is configured for running asymmetric
- crypto services and compression services
- * dc;asym: identical to asym;dc
- * sym;dc: the device is configured for running symmetric crypto
- services and compression services
- * dc;sym: identical to sym;dc
+ One or more services can be enabled per device.
+ Certain configurations are restricted to specific device types;
+ where applicable this is explicitly indicated, for example
+ (qat_6xxx) denotes applicability exclusively to that device series.
+
+ The available services include:
+
+ * sym: Configures the device for symmetric cryptographic operations.
+ * asym: Configures the device for asymmetric cryptographic operations.
+ * dc: Configures the device for compression and decompression
+ operations.
+ * dcc: Similar to dc, but with the additional dc chaining feature
+ enabled, cipher then compress (qat_6xxx), hash then compression.
+ If this is not required choose dc.
+ * decomp: Configures the device for decompression operations (qat_6xxx).
+
+ Service combinations are permitted for all services except dcc.
+ On QAT GEN4 devices (qat_4xxx driver) a maximum of two services can be
+ combined and on QAT GEN6 devices (qat_6xxx driver ) a maximum of three
+ services can be combined.
+ The order of services is not significant. For instance, sym;asym is
+ functionally equivalent to asym;sym.
It is possible to set the configuration only if the device
is in the `down` state (see /sys/bus/pci/devices/<BDF>/qat/state)
@@ -59,7 +63,7 @@ Description: (RW) Reports the current configuration of the QAT device.
# cat /sys/bus/pci/devices/<BDF>/qat/cfg_services
dc
- This attribute is only available for qat_4xxx devices.
+ This attribute is available for qat_4xxx and qat_6xxx devices.
What: /sys/bus/pci/devices/<BDF>/qat/pm_idle_enabled
Date: June 2023
@@ -94,7 +98,7 @@ Description: (RW) This configuration option provides a way to force the device i
# cat /sys/bus/pci/devices/<BDF>/qat/pm_idle_enabled
0
- This attribute is only available for qat_4xxx devices.
+ This attribute is available for qat_4xxx and qat_6xxx devices.
What: /sys/bus/pci/devices/<BDF>/qat/rp2srv
Date: January 2024
@@ -126,7 +130,7 @@ Description:
# cat /sys/bus/pci/devices/<BDF>/qat/rp2srv
sym
- This attribute is only available for qat_4xxx devices.
+ This attribute is available for qat_4xxx and qat_6xxx devices.
What: /sys/bus/pci/devices/<BDF>/qat/num_rps
Date: January 2024
@@ -140,7 +144,7 @@ Description:
# cat /sys/bus/pci/devices/<BDF>/qat/num_rps
64
- This attribute is only available for qat_4xxx devices.
+ This attribute is available for qat_4xxx and qat_6xxx devices.
What: /sys/bus/pci/devices/<BDF>/qat/auto_reset
Date: May 2024
@@ -160,4 +164,4 @@ Description: (RW) Reports the current state of the autoreset feature
* 0/Nn/off: auto reset disabled. If the device encounters an
unrecoverable error, it will not be reset.
- This attribute is only available for qat_4xxx devices.
+ This attribute is available for qat_4xxx and qat_6xxx devices.
diff --git a/Documentation/ABI/testing/sysfs-driver-qat_rl b/Documentation/ABI/testing/sysfs-driver-qat_rl
index 8c282ae3155d..d534f89b4971 100644
--- a/Documentation/ABI/testing/sysfs-driver-qat_rl
+++ b/Documentation/ABI/testing/sysfs-driver-qat_rl
@@ -31,7 +31,7 @@ Description:
* rm_all: Removes all the configured SLAs.
* Inputs: None
- This attribute is only available for qat_4xxx devices.
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
What: /sys/bus/pci/devices/<BDF>/qat_rl/rp
Date: January 2024
@@ -68,7 +68,7 @@ Description:
## Write
# echo 0x5 > /sys/bus/pci/devices/<BDF>/qat_rl/rp
- This attribute is only available for qat_4xxx devices.
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
What: /sys/bus/pci/devices/<BDF>/qat_rl/id
Date: January 2024
@@ -101,7 +101,7 @@ Description:
# cat /sys/bus/pci/devices/<BDF>/qat_rl/rp
0x5 ## ring pair ID 0 and ring pair ID 2
- This attribute is only available for qat_4xxx devices.
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
What: /sys/bus/pci/devices/<BDF>/qat_rl/cir
Date: January 2024
@@ -135,7 +135,7 @@ Description:
# cat /sys/bus/pci/devices/<BDF>/qat_rl/cir
500
- This attribute is only available for qat_4xxx devices.
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
What: /sys/bus/pci/devices/<BDF>/qat_rl/pir
Date: January 2024
@@ -169,7 +169,7 @@ Description:
# cat /sys/bus/pci/devices/<BDF>/qat_rl/pir
750
- This attribute is only available for qat_4xxx devices.
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
What: /sys/bus/pci/devices/<BDF>/qat_rl/srv
Date: January 2024
@@ -202,7 +202,7 @@ Description:
# cat /sys/bus/pci/devices/<BDF>/qat_rl/srv
dc
- This attribute is only available for qat_4xxx devices.
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
What: /sys/bus/pci/devices/<BDF>/qat_rl/cap_rem
Date: January 2024
@@ -223,4 +223,4 @@ Description:
# cat /sys/bus/pci/devices/<BDF>/qat_rl/cap_rem
0
- This attribute is only available for qat_4xxx devices.
+ This attribute is only available for qat_4xxx and qat_6xxx devices.
diff --git a/Documentation/ABI/testing/sysfs-driver-ufs b/Documentation/ABI/testing/sysfs-driver-ufs
index 615453fcc9ff..a90612ab5780 100644
--- a/Documentation/ABI/testing/sysfs-driver-ufs
+++ b/Documentation/ABI/testing/sysfs-driver-ufs
@@ -1685,3 +1685,86 @@ Description:
================ ========================================
The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/hid/analysis_trigger
+What: /sys/bus/platform/devices/*.ufs/hid/analysis_trigger
+Date: May 2025
+Contact: Huan Tang <tanghuan@vivo.com>
+Description:
+ The host can enable or disable HID analysis operation.
+
+ ======= =========================================
+ disable disable HID analysis operation
+ enable enable HID analysis operation
+ ======= =========================================
+
+ The file is write only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/hid/defrag_trigger
+What: /sys/bus/platform/devices/*.ufs/hid/defrag_trigger
+Date: May 2025
+Contact: Huan Tang <tanghuan@vivo.com>
+Description:
+ The host can enable or disable HID defragmentation operation.
+
+ ======= =========================================
+ disable disable HID defragmentation operation
+ enable enable HID defragmentation operation
+ ======= =========================================
+
+ The attribute is write only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/hid/fragmented_size
+What: /sys/bus/platform/devices/*.ufs/hid/fragmented_size
+Date: May 2025
+Contact: Huan Tang <tanghuan@vivo.com>
+Description:
+ The total fragmented size in the device is reported through
+ this attribute.
+
+ The attribute is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/hid/defrag_size
+What: /sys/bus/platform/devices/*.ufs/hid/defrag_size
+Date: May 2025
+Contact: Huan Tang <tanghuan@vivo.com>
+Description:
+ The host sets the size to be defragmented by an HID
+ defragmentation operation.
+
+ The attribute is read/write.
+
+What: /sys/bus/platform/drivers/ufshcd/*/hid/progress_ratio
+What: /sys/bus/platform/devices/*.ufs/hid/progress_ratio
+Date: May 2025
+Contact: Huan Tang <tanghuan@vivo.com>
+Description:
+ Defragmentation progress is reported by this attribute,
+ indicates the ratio of the completed defragmentation size
+ over the requested defragmentation size.
+
+ ==== ============================================
+ 1 1%
+ ...
+ 100 100%
+ ==== ============================================
+
+ The attribute is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/hid/state
+What: /sys/bus/platform/devices/*.ufs/hid/state
+Date: May 2025
+Contact: Huan Tang <tanghuan@vivo.com>
+Description:
+ The HID state is reported by this attribute.
+
+ ==================== ===========================
+ idle Idle (analysis required)
+ analysis_in_progress Analysis in progress
+ defrag_required Defrag required
+ defrag_in_progress Defrag in progress
+ defrag_completed Defrag completed
+ defrag_not_required Defrag is not required
+ ==================== ===========================
+
+ The attribute is read only.
diff --git a/Documentation/ABI/testing/sysfs-firmware-efi b/Documentation/ABI/testing/sysfs-firmware-efi
index 5e4d0b27cdfe..927e362d4974 100644
--- a/Documentation/ABI/testing/sysfs-firmware-efi
+++ b/Documentation/ABI/testing/sysfs-firmware-efi
@@ -36,3 +36,10 @@ Description: Displays the content of the Runtime Configuration Interface
Table version 2 on Dell EMC PowerEdge systems in binary format
Users: It is used by Dell EMC OpenManage Server Administrator tool to
populate BIOS setup page.
+
+What: /sys/firmware/efi/ovmf_debug_log
+Date: July 2025
+Contact: Gerd Hoffmann <kraxel@redhat.com>, linux-efi@vger.kernel.org
+Description: Displays the content of the OVMF debug log buffer. The file is
+ only present in case the firmware supports logging to a memory
+ buffer.
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index bf03263b9f46..bc0e7fefc39d 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -861,3 +861,25 @@ Description: This is a read-only entry to show the value of sb.s_encoding_flags,
SB_ENC_STRICT_MODE_FL 0x00000001
SB_ENC_NO_COMPAT_FALLBACK_FL 0x00000002
============================ ==========
+
+What: /sys/fs/f2fs/<disk>/reserved_pin_section
+Date: June 2025
+Contact: "Chao Yu" <chao@kernel.org>
+Description: This threshold is used to control triggering garbage collection while
+ fallocating on pinned file, so, it can guarantee there is enough free
+ reserved section before preallocating on pinned file.
+ By default, the value is ovp_sections, especially, for zoned ufs, the
+ value is 1.
+
+What: /sys/fs/f2fs/<disk>/gc_boost_gc_multiple
+Date: June 2025
+Contact: "Daeho Jeong" <daehojeong@google.com>
+Description: Set a multiplier for the background GC migration window when F2FS GC is
+ boosted. The range should be from 1 to the segment count in a section.
+ Default: 5
+
+What: /sys/fs/f2fs/<disk>/gc_boost_gc_greedy
+Date: June 2025
+Contact: "Daeho Jeong" <daehojeong@google.com>
+Description: Control GC algorithm for boost GC. 0: cost benefit, 1: greedy
+ Default: 1
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-damon b/Documentation/ABI/testing/sysfs-kernel-mm-damon
index 5697ab154c1f..6791d879759e 100644
--- a/Documentation/ABI/testing/sysfs-kernel-mm-damon
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-damon
@@ -44,6 +44,13 @@ Contact: SeongJae Park <sj@kernel.org>
Description: Reading this file returns the pid of the kdamond if it is
running.
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/refresh_ms
+Date: Jul 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing a value to this file sets the time interval for
+ automatic DAMON status file contents update. Writing '0'
+ disables the update. Reading this file returns the value.
+
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/nr_contexts
Date: Mar 2022
Contact: SeongJae Park <sj@kernel.org>
@@ -431,6 +438,28 @@ Description: Directory for DAMON operations set layer-handled DAMOS filters.
/sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters
directory.
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/dests/nr_dests
+Date: Jul 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing a number 'N' to this file creates the number of
+ directories for setting action destinations of the scheme named
+ '0' to 'N-1' under the dests/ directory.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/dests/<D>/id
+Date: Jul 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing to and reading from this file sets and gets the id of
+ the DAMOS action destination. For DAMOS_MIGRATE_{HOT,COLD}
+ actions, the destination node's node id can be written and
+ read.
+
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/dests/<D>/weight
+Date: Jul 2025
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing to and reading from this file sets and gets the weight
+ of the DAMOS action destination to select as the destination of
+ each action among the destinations.
+
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/nr_tried
Date: Mar 2022
Contact: SeongJae Park <sj@kernel.org>
generated by cgit (git 2.34.1) at 2025-08-11 03:10:44 +0000