diff options
Diffstat (limited to 'Documentation/ABI')
17 files changed, 418 insertions, 9 deletions
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-ffs b/Documentation/ABI/testing/configfs-usb-gadget-ffs new file mode 100644 index 000000000000..14343e237e83 --- /dev/null +++ b/Documentation/ABI/testing/configfs-usb-gadget-ffs @@ -0,0 +1,9 @@ +What: /config/usb-gadget/gadget/functions/ffs.name +Date: Nov 2013 +KenelVersion: 3.13 +Description: The purpose of this directory is to create and remove it. + + A corresponding USB function instance is created/removed. + There are no attributes here. + + All parameters are set through FunctionFS. diff --git a/Documentation/ABI/testing/configfs-usb-gadget-loopback b/Documentation/ABI/testing/configfs-usb-gadget-loopback new file mode 100644 index 000000000000..852b2365a5b5 --- /dev/null +++ b/Documentation/ABI/testing/configfs-usb-gadget-loopback @@ -0,0 +1,8 @@ +What: /config/usb-gadget/gadget/functions/Loopback.name +Date: Nov 2013 +KenelVersion: 3.13 +Description: + The attributes: + + qlen - depth of loopback queue + bulk_buflen - buffer length diff --git a/Documentation/ABI/testing/configfs-usb-gadget-sourcesink b/Documentation/ABI/testing/configfs-usb-gadget-sourcesink new file mode 100644 index 000000000000..a30f3093ef6c --- /dev/null +++ b/Documentation/ABI/testing/configfs-usb-gadget-sourcesink @@ -0,0 +1,12 @@ +What: /config/usb-gadget/gadget/functions/SourceSink.name +Date: Nov 2013 +KenelVersion: 3.13 +Description: + The attributes: + + pattern - 0 (all zeros), 1 (mod63), 2 (none) + isoc_interval - 1..16 + isoc_maxpacket - 0 - 1023 (fs), 0 - 1024 (hs/ss) + isoc_mult - 0..2 (hs/ss only) + isoc_maxburst - 0..15 (ss only) + qlen - buffer length diff --git a/Documentation/ABI/testing/debugfs-driver-genwqe b/Documentation/ABI/testing/debugfs-driver-genwqe new file mode 100644 index 000000000000..1c2f25674e8c --- /dev/null +++ b/Documentation/ABI/testing/debugfs-driver-genwqe @@ -0,0 +1,91 @@ +What: /sys/kernel/debug/genwqe/genwqe<n>_card/ddcb_info +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: DDCB queue dump used for debugging queueing problems. + +What: /sys/kernel/debug/genwqe/genwqe<n>_card/curr_regs +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Dump of the current error registers. + Only available for PF. + +What: /sys/kernel/debug/genwqe/genwqe<n>_card/curr_dbg_uid0 +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Internal chip state of UID0 (unit id 0). + Only available for PF. + +What: /sys/kernel/debug/genwqe/genwqe<n>_card/curr_dbg_uid1 +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Internal chip state of UID1. + Only available for PF. + +What: /sys/kernel/debug/genwqe/genwqe<n>_card/curr_dbg_uid2 +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Internal chip state of UID2. + Only available for PF. + +What: /sys/kernel/debug/genwqe/genwqe<n>_card/prev_regs +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Dump of the error registers before the last reset of + the card occured. + Only available for PF. + +What: /sys/kernel/debug/genwqe/genwqe<n>_card/prev_dbg_uid0 +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Internal chip state of UID0 before card was reset. + Only available for PF. + +What: /sys/kernel/debug/genwqe/genwqe<n>_card/prev_dbg_uid1 +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Internal chip state of UID1 before card was reset. + Only available for PF. + +What: /sys/kernel/debug/genwqe/genwqe<n>_card/prev_dbg_uid2 +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Internal chip state of UID2 before card was reset. + Only available for PF. + +What: /sys/kernel/debug/genwqe/genwqe<n>_card/info +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Comprehensive summary of bitstream version and software + version. Used bitstream and bitstream clocking information. + +What: /sys/kernel/debug/genwqe/genwqe<n>_card/err_inject +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Possibility to inject error cases to ensure that the drivers + error handling code works well. + +What: /sys/kernel/debug/genwqe/genwqe<n>_card/vf<0..14>_jobtimeout_msec +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Default VF timeout 250ms. Testing might require 1000ms. + Using 0 will use the cards default value (whatever that is). + + The timeout depends on the max number of available cards + in the system and the maximum allowed queue size. + + The driver ensures that the settings are done just before + the VFs get enabled. Changing the timeouts in flight is not + possible. + Only available for PF. + +What: /sys/kernel/debug/genwqe/genwqe<n>_card/jobtimer +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Dump job timeout register values for PF and VFs. + Only available for PF. + +What: /sys/kernel/debug/genwqe/genwqe<n>_card/queue_working_time +Date: Dec 2013 +Contact: haver@linux.vnet.ibm.com +Description: Dump queue working time register values for PF and VFs. + Only available for PF. diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index b20e829d350f..6e02c5029152 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -197,6 +197,19 @@ Description: Raw pressure measurement from channel Y. Units after application of scale and offset are kilopascal. +What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw +KernelVersion: 3.14 +Contact: linux-iio@vger.kernel.org +Description: + Raw humidity measurement of air. Units after application of + scale and offset are milli percent. + +What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input +KernelVersion: 3.14 +Contact: linux-iio@vger.kernel.org +Description: + Scaled humidity measurement in milli percent. + What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci index 5210a51c90fd..a3c5a6685036 100644 --- a/Documentation/ABI/testing/sysfs-bus-pci +++ b/Documentation/ABI/testing/sysfs-bus-pci @@ -70,18 +70,15 @@ Date: September, 2011 Contact: Neil Horman <nhorman@tuxdriver.com> Description: The /sys/devices/.../msi_irqs directory contains a variable set - of sub-directories, with each sub-directory being named after a - corresponding msi irq vector allocated to that device. Each - numbered sub-directory N contains attributes of that irq. - Note that this directory is not created for device drivers which - do not support msi irqs + of files, with each file being named after a corresponding msi + irq vector allocated to that device. -What: /sys/bus/pci/devices/.../msi_irqs/<N>/mode +What: /sys/bus/pci/devices/.../msi_irqs/<N> Date: September 2011 Contact: Neil Horman <nhorman@tuxdriver.com> Description: This attribute indicates the mode that the irq vector named by - the parent directory is in (msi vs. msix) + the file is in (msi vs. msix) What: /sys/bus/pci/devices/.../remove Date: January 2009 diff --git a/Documentation/ABI/testing/sysfs-bus-rbd b/Documentation/ABI/testing/sysfs-bus-rbd index 0a306476424e..501adc2a9ec7 100644 --- a/Documentation/ABI/testing/sysfs-bus-rbd +++ b/Documentation/ABI/testing/sysfs-bus-rbd @@ -18,6 +18,28 @@ Removal of a device: $ echo <dev-id> > /sys/bus/rbd/remove +What: /sys/bus/rbd/add_single_major +Date: December 2013 +KernelVersion: 3.14 +Contact: Sage Weil <sage@inktank.com> +Description: Available only if rbd module is inserted with single_major + parameter set to true. + Usage is the same as for /sys/bus/rbd/add. If present, + should be used instead of the latter: any attempts to use + /sys/bus/rbd/add if /sys/bus/rbd/add_single_major is + available will fail for backwards compatibility reasons. + +What: /sys/bus/rbd/remove_single_major +Date: December 2013 +KernelVersion: 3.14 +Contact: Sage Weil <sage@inktank.com> +Description: Available only if rbd module is inserted with single_major + parameter set to true. + Usage is the same as for /sys/bus/rbd/remove. If present, + should be used instead of the latter: any attempts to use + /sys/bus/rbd/remove if /sys/bus/rbd/remove_single_major is + available will fail for backwards compatibility reasons. + Entries under /sys/bus/rbd/devices/<dev-id>/ -------------------------------------------- @@ -33,6 +55,10 @@ major The block device major number. +minor + + The block device minor number. (December 2013, since 3.14.) + name The name of the rbd image. diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb index 1430f584b266..614d451cee41 100644 --- a/Documentation/ABI/testing/sysfs-bus-usb +++ b/Documentation/ABI/testing/sysfs-bus-usb @@ -50,13 +50,19 @@ Description: This may allow the driver to support more hardware than was included in the driver's static device ID support table at compile time. The format for the device ID is: - idVendor idProduct bInterfaceClass. + idVendor idProduct bInterfaceClass RefIdVendor RefIdProduct The vendor ID and device ID fields are required, the - interface class is optional. + rest is optional. The Ref* tuple can be used to tell the + driver to use the same driver_data for the new device as + it is used for the reference device. Upon successfully adding an ID, the driver will probe for the device and attempt to bind to it. For example: # echo "8086 10f5" > /sys/bus/usb/drivers/foo/new_id + Here add a new device (0458:7045) using driver_data from + an already supported device (0458:704c): + # echo "0458 7045 0 0458 704c" > /sys/bus/usb/drivers/foo/new_id + Reading from this file will list all dynamically added device IDs in the same format, with one entry per line. For example: diff --git a/Documentation/ABI/testing/sysfs-class-net-mesh b/Documentation/ABI/testing/sysfs-class-net-mesh index 0baa657b18c4..4793d3dff6af 100644 --- a/Documentation/ABI/testing/sysfs-class-net-mesh +++ b/Documentation/ABI/testing/sysfs-class-net-mesh @@ -68,6 +68,14 @@ Description: Defines the penalty which will be applied to an originator message's tq-field on every hop. +What: /sys/class/net/<mesh_iface>/mesh/isolation_mark +Date: Nov 2013 +Contact: Antonio Quartulli <antonio@meshcoding.com> +Description: + Defines the isolation mark (and its bitmask) which + is used to classify clients as "isolated" by the + Extended Isolation feature. + What: /sys/class/net/<mesh_iface>/mesh/network_coding Date: Nov 2012 Contact: Martin Hundeboll <martin@hundeboll.net> diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index 468e4d48f884..d5a0d33c571f 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -200,3 +200,27 @@ Description: address and size of the percpu note. note of cpu#. crash_notes_size: size of the note of cpu#. + + +What: /sys/devices/system/cpu/intel_pstate/max_perf_pct + /sys/devices/system/cpu/intel_pstate/min_perf_pct + /sys/devices/system/cpu/intel_pstate/no_turbo +Date: February 2013 +Contact: linux-pm@vger.kernel.org +Description: Parameters for the Intel P-state driver + + Logic for selecting the current P-state in Intel + Sandybridge+ processors. The three knobs control + limits for the P-state that will be requested by the + driver. + + max_perf_pct: limits the maximum P state that will be requested by + the driver stated as a percentage of the available performance. + + min_perf_pct: limits the minimum P state that will be requested by + the driver stated as a percentage of the available performance. + + no_turbo: limits the driver to selecting P states below the turbo + frequency range. + + More details can be found in Documentation/cpu-freq/intel-pstate.txt diff --git a/Documentation/ABI/testing/sysfs-driver-genwqe b/Documentation/ABI/testing/sysfs-driver-genwqe new file mode 100644 index 000000000000..1870737a1f5e --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-genwqe @@ -0,0 +1,62 @@ +What: /sys/class/genwqe/genwqe<n>_card/version +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Unique bitstream identification e.g. + '0000000330336283.00000000475a4950'. + +What: /sys/class/genwqe/genwqe<n>_card/appid +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Identifies the currently active card application e.g. 'GZIP' + for compression/decompression. + +What: /sys/class/genwqe/genwqe<n>_card/type +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Type of the card e.g. 'GenWQE5-A7'. + +What: /sys/class/genwqe/genwqe<n>_card/curr_bitstream +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Currently active bitstream. 1 is default, 0 is backup. + +What: /sys/class/genwqe/genwqe<n>_card/next_bitstream +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Interface to set the next bitstream to be used. + +What: /sys/class/genwqe/genwqe<n>_card/tempsens +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Interface to read the cards temperature sense register. + +What: /sys/class/genwqe/genwqe<n>_card/freerunning_timer +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Interface to read the cards free running timer. + Used for performance and utilization measurements. + +What: /sys/class/genwqe/genwqe<n>_card/queue_working_time +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Interface to read queue working time. + Used for performance and utilization measurements. + +What: /sys/class/genwqe/genwqe<n>_card/state +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: State of the card: "unused", "used", "error". + +What: /sys/class/genwqe/genwqe<n>_card/base_clock +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Base clock frequency of the card. + +What: /sys/class/genwqe/genwqe<n>_card/device/sriov_numvfs +Date: Oct 2013 +Contact: haver@linux.vnet.ibm.com +Description: Enable VFs (1..15): + sudo sh -c 'echo 15 > \ + /sys/bus/pci/devices/0000\:1b\:00.0/sriov_numvfs' + Disable VFs: + Write a 0 into the same sysfs entry. diff --git a/Documentation/ABI/testing/sysfs-firmware-efi b/Documentation/ABI/testing/sysfs-firmware-efi new file mode 100644 index 000000000000..05874da7ce80 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-firmware-efi @@ -0,0 +1,20 @@ +What: /sys/firmware/efi/fw_vendor +Date: December 2013 +Contact: Dave Young <dyoung@redhat.com> +Description: It shows the physical address of firmware vendor field in the + EFI system table. +Users: Kexec + +What: /sys/firmware/efi/runtime +Date: December 2013 +Contact: Dave Young <dyoung@redhat.com> +Description: It shows the physical address of runtime service table entry in + the EFI system table. +Users: Kexec + +What: /sys/firmware/efi/config_table +Date: December 2013 +Contact: Dave Young <dyoung@redhat.com> +Description: It shows the physical address of config table entry in the EFI + system table. +Users: Kexec diff --git a/Documentation/ABI/testing/sysfs-firmware-efi-runtime-map b/Documentation/ABI/testing/sysfs-firmware-efi-runtime-map new file mode 100644 index 000000000000..c61b9b348e99 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-firmware-efi-runtime-map @@ -0,0 +1,34 @@ +What: /sys/firmware/efi/runtime-map/ +Date: December 2013 +Contact: Dave Young <dyoung@redhat.com> +Description: Switching efi runtime services to virtual mode requires + that all efi memory ranges which have the runtime attribute + bit set to be mapped to virtual addresses. + + The efi runtime services can only be switched to virtual + mode once without rebooting. The kexec kernel must maintain + the same physical to virtual address mappings as the first + kernel. The mappings are exported to sysfs so userspace tools + can reassemble them and pass them into the kexec kernel. + + /sys/firmware/efi/runtime-map/ is the directory the kernel + exports that information in. + + subdirectories are named with the number of the memory range: + + /sys/firmware/efi/runtime-map/0 + /sys/firmware/efi/runtime-map/1 + /sys/firmware/efi/runtime-map/2 + /sys/firmware/efi/runtime-map/3 + ... + + Each subdirectory contains five files: + + attribute : The attributes of the memory range. + num_pages : The size of the memory range in pages. + phys_addr : The physical address of the memory range. + type : The type of the memory range. + virt_addr : The virtual address of the memory range. + + Above values are all hexadecimal numbers with the '0x' prefix. +Users: Kexec diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 31942efcaf0e..32b0809203dd 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -24,3 +24,34 @@ Date: July 2013 Contact: "Namjae Jeon" <namjae.jeon@samsung.com> Description: Controls the victim selection policy for garbage collection. + +What: /sys/fs/f2fs/<disk>/reclaim_segments +Date: October 2013 +Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> +Description: + Controls the issue rate of segment discard commands. + +What: /sys/fs/f2fs/<disk>/ipu_policy +Date: November 2013 +Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> +Description: + Controls the in-place-update policy. + +What: /sys/fs/f2fs/<disk>/min_ipu_util +Date: November 2013 +Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> +Description: + Controls the FS utilization condition for the in-place-update + policies. + +What: /sys/fs/f2fs/<disk>/max_small_discards +Date: November 2013 +Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> +Description: + Controls the issue rate of small discard commands. + +What: /sys/fs/f2fs/<disk>/max_victim_search +Date: January 2014 +Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> +Description: + Controls the number of trials to find a victim segment. diff --git a/Documentation/ABI/testing/sysfs-kernel-boot_params b/Documentation/ABI/testing/sysfs-kernel-boot_params new file mode 100644 index 000000000000..eca38ce2852d --- /dev/null +++ b/Documentation/ABI/testing/sysfs-kernel-boot_params @@ -0,0 +1,38 @@ +What: /sys/kernel/boot_params +Date: December 2013 +Contact: Dave Young <dyoung@redhat.com> +Description: The /sys/kernel/boot_params directory contains two + files: "data" and "version" and one subdirectory "setup_data". + It is used to export the kernel boot parameters of an x86 + platform to userspace for kexec and debugging purpose. + + If there's no setup_data in boot_params the subdirectory will + not be created. + + "data" file is the binary representation of struct boot_params. + + "version" file is the string representation of boot + protocol version. + + "setup_data" subdirectory contains the setup_data data + structure in boot_params. setup_data is maintained in kernel + as a link list. In "setup_data" subdirectory there's one + subdirectory for each link list node named with the number + of the list nodes. The list node subdirectory contains two + files "type" and "data". "type" file is the string + representation of setup_data type. "data" file is the binary + representation of setup_data payload. + + The whole boot_params directory structure is like below: + /sys/kernel/boot_params + |__ data + |__ setup_data + | |__ 0 + | | |__ data + | | |__ type + | |__ 1 + | |__ data + | |__ type + |__ version + +Users: Kexec diff --git a/Documentation/ABI/testing/sysfs-kernel-vmcoreinfo b/Documentation/ABI/testing/sysfs-kernel-vmcoreinfo new file mode 100644 index 000000000000..7bd81168e063 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-kernel-vmcoreinfo @@ -0,0 +1,14 @@ +What: /sys/kernel/vmcoreinfo +Date: October 2007 +KernelVersion: 2.6.24 +Contact: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp> + Kexec Mailing List <kexec@lists.infradead.org> + Vivek Goyal <vgoyal@redhat.com> +Description + Shows physical address and size of vmcoreinfo ELF note. + First value contains physical address of note in hex and + second value contains the size of note in hex. This ELF + note info is parsed by second kernel and exported to user + space as part of ELF note in /proc/vmcore file. This note + contains various information like struct size, symbol + values, page size etc. diff --git a/Documentation/ABI/testing/sysfs-platform-tahvo-usb b/Documentation/ABI/testing/sysfs-platform-tahvo-usb new file mode 100644 index 000000000000..f6e20ce4b538 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-tahvo-usb @@ -0,0 +1,16 @@ +What: /sys/bus/platform/devices/tahvo-usb/otg_mode +Date: December 2013 +Contact: Aaro Koskinen <aaro.koskinen@iki.fi> +Description: + Set or read the current OTG mode. Valid values are "host" and + "peripheral". + + Reading: returns the current mode. + +What: /sys/bus/platform/devices/tahvo-usb/vbus +Date: December 2013 +Contact: Aaro Koskinen <aaro.koskinen@iki.fi> +Description: + Read the current VBUS state. + + Reading: returns "on" or "off". |
