Commit graph

80 commits

Author SHA1 Message Date
Linus Walleij
fae9816446 gpio: uapi: use 0xB4 as ioctl() major
The previous 'o' is in conflict and not very orderly assigned.
We want to select an ioctl() major that does not conflict with
the existining ones.

Add the new reserved major (0xB4) to Documentation/ioctl/ioctl-number.txt

Fixes: 3c702e9987 ("gpio: add a userspace chardev ABI for GPIOs")
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-10 16:02:52 +07:00
Masanari Iida
d53a7b8ff6 Doc: ioctl: Fix typos in Documentation/ioctl
This patch fix some spelling typos in Documentation/ioctl.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-11-20 16:52:50 -07:00
Linus Torvalds
8e483ed134 char/misc drivers for 4.4-rc1
Here is the big char/misc driver update for 4.4-rc1.  Lots of different
 driver and subsystem updates, hwtracing being the largest with the
 addition of some new platforms that are now supported.  Full details in
 the shortlog.
 
 All of these have been in linux-next for a long time with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big char/misc driver update for 4.4-rc1.  Lots of
  different driver and subsystem updates, hwtracing being the largest
  with the addition of some new platforms that are now supported.  Full
  details in the shortlog.

  All of these have been in linux-next for a long time with no reported
  issues"

* tag 'char-misc-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (181 commits)
  fpga: socfpga: Fix check of return value of devm_request_irq
  lkdtm: fix ACCESS_USERSPACE test
  mcb: Destroy IDA on module unload
  mcb: Do not return zero on error path in mcb_pci_probe()
  mei: bus: set the device name before running fixup
  mei: bus: use correct lock ordering
  mei: Fix debugfs filename in error output
  char: ipmi: ipmi_ssif: Replace timeval with timespec64
  fpga: zynq-fpga: Fix issue with drvdata being overwritten.
  fpga manager: remove unnecessary null pointer checks
  fpga manager: ensure lifetime with of_fpga_mgr_get
  fpga: zynq-fpga: Change fw format to handle bin instead of bit.
  fpga: zynq-fpga: Fix unbalanced clock handling
  misc: sram: partition base address belongs to __iomem space
  coresight: etm3x: adding documentation for sysFS's cpu interface
  vme: 8-bit status/id takes 256 values, not 255
  fpga manager: Adding FPGA Manager support for Xilinx Zynq 7000
  ARM: zynq: dt: Updated devicetree for Zynq 7000 platform.
  ARM: dt: fpga: Added binding docs for Xilinx Zynq FPGA manager.
  ver_linux: proc/modules, limit text processing to 'sed'
  ...
2015-11-04 22:15:15 -08:00
Matias Bjørling
cd9e9808d1 lightnvm: Support for Open-Channel SSDs
Open-channel SSDs are devices that share responsibilities with the host
in order to implement and maintain features that typical SSDs keep
strictly in firmware. These include (i) the Flash Translation Layer
(FTL), (ii) bad block management, and (iii) hardware units such as the
flash controller, the interface controller, and large amounts of flash
chips. In this way, Open-channels SSDs exposes direct access to their
physical flash storage, while keeping a subset of the internal features
of SSDs.

LightNVM is a specification that gives support to Open-channel SSDs
LightNVM allows the host to manage data placement, garbage collection,
and parallelism. Device specific responsibilities such as bad block
management, FTL extensions to support atomic IOs, or metadata
persistence are still handled by the device.

The implementation of LightNVM consists of two parts: core and
(multiple) targets. The core implements functionality shared across
targets. This is initialization, teardown and statistics. The targets
implement the interface that exposes physical flash to user-space
applications. Examples of such targets include key-value store,
object-store, as well as traditional block devices, which can be
application-specific.

Contributions in this patch from:

  Javier Gonzalez <jg@lightnvm.io>
  Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
  Jesper Madsen <jmad@itu.dk>

Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-10-29 16:21:42 +09:00
Alexander Shishkin
7bd1d4093c stm class: Introduce an abstraction for System Trace Module devices
A System Trace Module (STM) is a device exporting data in System Trace
Protocol (STP) format as defined by MIPI STP standards. Examples of such
devices are Intel(R) Trace Hub and Coresight STM.

This abstraction provides a unified interface for software trace sources
to send their data over an STM device to a debug host. In order to do
that, such a trace source needs to be assigned a pair of master/channel
identifiers that all the data from this source will be tagged with. The
STP decoder on the debug host side will use these master/channel tags to
distinguish different trace streams from one another inside one STP
stream.

This abstraction provides a configfs-based policy management mechanism
for dynamic allocation of these master/channel pairs based on trace
source-supplied string identifier. It has the flexibility of being
defined at runtime and at the same time (provided that the policy
definition is aligned with the decoding end) consistency.

For userspace trace sources, this abstraction provides write()-based and
mmap()-based (if the underlying stm device allows this) output mechanism.

For kernel-side trace sources, we provide "stm_source" device class that
can be connected to an stm device at run time.

Cc: linux-api@vger.kernel.org
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 20:28:58 +01:00
Linus Torvalds
3af6e98f25 platform-drivers-x86 for 4.3-1
Significant work on toshiba_acpi, including new hardware support,
 refactoring, and cleanups. Extend device support for asus, ideapad, and
 acer systems. New surface pro 3 buttons driver. Misc. minor cleanups for
 thinkpad and hp-wireless.
 
 acer-wmi:
  - No rfkill on HP Omen 15 wifi
 
 thinkpad_acpi
  - Remove side effects from vdbg_printk -> no_printk macro
 
 surface pro 3
  - Add support driver for Surface Pro 3 buttons
 
 hp-wireless
  - remove unneeded goto/label in hpwl_init
 
 ideapad-laptop
  - add alternative representation for Yoga 2 to DMI table
  - Add Lenovo Yoga 3 14 to no_hw_rfkill dmi list
 
 asus-laptop
  - Add key found on Asus F3M
 
 MAINTAINERS
  - Remove Toshiba Linux mailing list address
 
 toshiba_acpi:
  - Bump driver version to 0.23
  - Remove unnecessary checks and returns in HCI/SCI functions
  - Refactor *{get, set} functions return value
  - Remove "*not supported" feature prints
  - Change *available functions return type
  - Add set_fan_status function
  - Change some variables to avoid warnings from ninja-check
  - Reorder toshiba_acpi_alt_keymap entries
  - Remove unused wireless defines
  - Transflective backlight updates
  - Avoid registering input device on WMI event laptops
  - Add /dev/toshiba_acpi device
  - Adapt /proc/acpi/toshiba/keys to TOS1900 devices
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Merge tag 'platform-drivers-x86-v4.3-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86

Pull x86 platform driver updates from Darren Hart:
 "Significant work on toshiba_acpi, including new hardware support,
  refactoring, and cleanups.  Extend device support for asus, ideapad,
  and acer systems.  New surface pro 3 buttons driver.  Misc minor
  cleanups for thinkpad and hp-wireless.

  acer-wmi:
   - No rfkill on HP Omen 15 wifi

  thinkpad_acpi:
   - Remove side effects from vdbg_printk -> no_printk macro

  surface pro 3:
   - Add support driver for Surface Pro 3 buttons

  hp-wireless:
   - remove unneeded goto/label in hpwl_init

  ideapad-laptop:
   - add alternative representation for Yoga 2 to DMI table
   - Add Lenovo Yoga 3 14 to no_hw_rfkill dmi list

  asus-laptop:
   - Add key found on Asus F3M

  MAINTAINERS:
   - Remove Toshiba Linux mailing list address

  toshiba_acpi:
   - Bump driver version to 0.23
   - Remove unnecessary checks and returns in HCI/SCI functions
   - Refactor *{get, set} functions return value
   - Remove "*not supported" feature prints
   - Change *available functions return type
   - Add set_fan_status function
   - Change some variables to avoid warnings from ninja-check
   - Reorder toshiba_acpi_alt_keymap entries
   - Remove unused wireless defines
   - Transflective backlight updates
   - Avoid registering input device on WMI event laptops
   - Add /dev/toshiba_acpi device
   - Adapt /proc/acpi/toshiba/keys to TOS1900 devices"

* tag 'platform-drivers-x86-v4.3-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: (21 commits)
  acer-wmi: No rfkill on HP Omen 15 wifi
  thinkpad_acpi: Remove side effects from vdbg_printk -> no_printk macro
  surface pro 3: Add support driver for Surface Pro 3 buttons
  hp-wireless: remove unneeded goto/label in hpwl_init
  ideapad-laptop: add alternative representation for Yoga 2 to DMI table
  asus-laptop: Add key found on Asus F3M
  MAINTAINERS: Remove Toshiba Linux mailing list address
  ideapad-laptop: Add Lenovo Yoga 3 14 to no_hw_rfkill dmi list
  toshiba_acpi: Bump driver version to 0.23
  toshiba_acpi: Remove unnecessary checks and returns in HCI/SCI functions
  toshiba_acpi: Refactor *{get, set} functions return value
  toshiba_acpi: Remove "*not supported" feature prints
  toshiba_acpi: Change *available functions return type
  toshiba_acpi: Add set_fan_status function
  toshiba_acpi: Change some variables to avoid warnings from ninja-check
  toshiba_acpi: Reorder toshiba_acpi_alt_keymap entries
  toshiba_acpi: Remove unused wireless defines
  toshiba_acpi: Transflective backlight updates
  toshiba_acpi: Avoid registering input device on WMI event laptops
  toshiba_acpi: Add /dev/toshiba_acpi device
  ...
2015-09-08 16:26:18 -07:00
Andrea Arcangeli
1038628d80 userfaultfd: uAPI
Defines the uAPI of the userfaultfd, notably the ioctl numbers and protocol.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
Cc: Sanidhya Kashyap <sanidhya.gatech@gmail.com>
Cc: zhang.zhanghailiang@huawei.com
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Andres Lagar-Cavilla <andreslc@google.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Hugh Dickins <hughd@google.com>
Cc: Peter Feiner <pfeiner@google.com>
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: "Huangpeng (Peter)" <peter.huangpeng@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-04 16:54:41 -07:00
Linus Torvalds
df910390e2 SCSI misc on 20150901
This includes one new driver: cxlflash plus the usual grab bag of updates for
 the major drivers: qla2xxx, ipr, storvsc, pm80xx, hptiop, plus a few assorted
 fixes.
 
 Signed-off-by: James Bottomley <JBottomley@Odin.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull first round of SCSI updates from James Bottomley:
 "This includes one new driver: cxlflash plus the usual grab bag of
  updates for the major drivers: qla2xxx, ipr, storvsc, pm80xx, hptiop,
  plus a few assorted fixes.

  There's another tranch coming, but I want to incubate it another few
  days in the checkers, plus it includes a mpt2sas separated lifetime
  fix, which Avago won't get done testing until Friday"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (85 commits)
  aic94xx: set an error code on failure
  storvsc: Set the error code correctly in failure conditions
  storvsc: Allow write_same when host is windows 10
  storvsc: use storage protocol version to determine storage capabilities
  storvsc: use correct defaults for values determined by protocol negotiation
  storvsc: Untangle the storage protocol negotiation from the vmbus protocol negotiation.
  storvsc: Use a single value to track protocol versions
  storvsc: Rather than look for sets of specific protocol versions, make decisions based on ranges.
  cxlflash: Remove unused variable from queuecommand
  cxlflash: shift wrapping bug in afu_link_reset()
  cxlflash: off by one bug in cxlflash_show_port_status()
  cxlflash: Virtual LUN support
  cxlflash: Superpipe support
  cxlflash: Base error recovery support
  qla2xxx: Update driver version to 8.07.00.26-k
  qla2xxx: Add pci device id 0x2261.
  qla2xxx: Fix missing device login retries.
  qla2xxx: do not clear slot in outstanding cmd array
  qla2xxx: Remove decrement of sp reference count in abort handler.
  qla2xxx: Add support to show MPI and PEP FW version for ISP27xx.
  ...
2015-09-02 12:22:54 -07:00
Matthew R. Ochs
65be2c79ac cxlflash: Superpipe support
Add superpipe supporting infrastructure to device driver for the IBM CXL
Flash adapter. This patch allows userspace applications to take advantage
of the accelerated I/O features that this adapter provides and bypass the
traditional filesystem stack.

Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Michael Neuling <mikey@neuling.org>
Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 18:04:37 -07:00
Tomas Winkler
3c7c8468e5 mei: add async event notification ioctls
Add ioctl IOCTL_MEI_NOTIFY_SET for enabling and disabling
async event notification.
Add ioctl IOCTL_MEI_NOTIFY_GET for receiving and acking
an event notification.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-03 17:30:00 -07:00
Azael Avalos
fc5462f852 toshiba_acpi: Add /dev/toshiba_acpi device
There were previous attempts to "merge" the toshiba SMM module to the
toshiba_acpi one, they were trying to imitate what the old toshiba
module does, however, some models (TOS1900 devices) come with a
"crippled" implementation and do not provide all the "features" a
"genuine" Toshiba BIOS does.

This patch adds a new device called toshiba_acpi, which aim is to
enable userspace to access the SMM on Toshiba laptops via ACPI calls.

Creating a new convenience _IOWR command to access the SCI functions
by opening/closing the SCI internally to avoid buggy BIOS, while at
the same time providing backwards compatibility.

Older programs (and new) who wish to access the SMM on newer models
can do it by pointing their path to /dev/toshiba_acpi (instead of
/dev/toshiba) as the toshiba.h header was modified to reflect these
changes as well as adds all the toshiba_acpi paths and command,
however, it is strongly recommended to use the new IOCTL for any
SCI command to avoid any buggy BIOS.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-07-24 14:15:10 -07:00
Miklos Szeredi
00c570f4ba fuse: device fd clone
Allow an open fuse device to be "cloned".  Userspace can create a clone by:

      newfd = open("/dev/fuse", O_RDWR)
      ioctl(newfd, FUSE_DEV_IOC_CLONE, &oldfd);

At this point newfd will refer to the same fuse connection as oldfd.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
2015-07-01 16:26:08 +02:00
Bill Richardson
e7c256fbfb platform/chrome: Add Chrome OS EC userspace device interface
This patch adds a device interface to access the
Chrome OS Embedded Controller from user-space.

Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Simon Glass <sjg@google.com>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Tested-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-02-26 15:45:06 -08:00
Ian Munsie
a9282d01cf cxl: Add documentation for userspace APIs
This documentation gives an overview of the hardware architecture, userspace
APIs via /dev/cxl/afuM.N and the syfs files. It also adds a MAINTAINERS file
entry for cxl.

Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2014-10-08 20:16:19 +11:00
Michael Ellerman
efe4a77221 Documentation: add How to avoid botching up ioctls
I pointed some folks at this and they wondered why it wasn't in the
kernel Documentation directory. So now it is.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-09 09:13:40 -07:00
Tadeusz Struk
cea4001ae1 crypto: qat - Update to makefiles
Update to makefiles etc.
Don't update the firmware/Makefile yet since there is no FW binary in
the crypto repo yet. This will be added later.

v3 - removed change to ./firmware/Makefile

Reviewed-by: Bruce W. Allan <bruce.w.allan@intel.com>
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-06-20 21:26:19 +08:00
Martin Schwidefsky
07be038209 s390/hypfs: add interface for diagnose 0x304
To provide access to the set-partition-resource-parameter interface
to user space add a new attribute to hypfs/debugfs:
 * s390_hypsfs/diag_304
The data for the query-partition-resource-parameters command can
be access by a read on the attribute. All other diagnose 0x304
requests need to be submitted via ioctl with CAP_SYS_ADMIN rights.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-01-24 09:40:59 +01:00
Clemens Ladisch
82fbb4f7b4 ALSA: add DICE driver
As a start point for further development, this is an incomplete driver
for DICE devices:
- only playback (so no clock source except the bus clock)
- only 44.1 kHz
- no MIDI
- recovery after bus reset is slow
- hwdep device is created, but not actually implemented

Contains compilation fixes by Stefan Richter.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2013-10-17 21:18:32 +02:00
Michael Holzheu
d475f942b1 s390/sclp: Add SCLP character device driver
Add a character misc device "sclp_ctl" that allows to run SCCBs
from user space using the SCLP_CTL_SCCB ioctl.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-06-26 21:10:13 +02:00
Bjørn Mork
3edce1cf81 USB: cdc-wdm: implement IOCTL_WDM_MAX_COMMAND
Userspace applications need to know the maximum supported message
size.

The cdc-wdm driver translates between a character device stream
and a message based protocol.  Each message is transported as a
usb control message with no further encapsulation or syncronization.
Each read or write on the character device should translate to
exactly one usb control message to ensure that message boundaries
are kept intact.  That means that the userspace application must
know the maximum message size supported by the device and driver,
making this size a vital part of the cdc-wdm character device API.

CDC WDM and CDC MBIM functions export the maximum supported
message size through CDC functional descriptors.  The cdc-wdm and
cdc_mbim drivers will parse these descriptors and use the value
chosen by the device.  The only current way for a userspace
application to retrive the value is by duplicating the descriptor
parsing. This is an unnecessary complex task, and application
writers are likely to postpone it, using a fixed value and adding
a "todo" item.

QMI functions have no way to tell the host what message size they
support.  The qmi_wwan driver use a fixed value based on protocol
recommendations and observed device behaviour.  Userspace
applications must know and hard code the same value.  This scheme
will break if we ever encounter a QMI device needing a device
specific message size quirk.  We are currently unable to support
such a device because using a non default size would break the
implicit userspace API.

The message size is currently a hidden attribute of the cdc-wdm
userspace API.  Retrieving it is unnecessarily complex, increasing
the possibility of drivers and applications using different limits.
The resulting errors are hard to debug, and can only be replicated
on identical hardware.

Exporting the maximum message size from the driver simplifies the
task for the userspace application, and creates a unified
information source independent of device and function class. It also
serves to document that the message size is part of the cdc-wdm
userspace API.

This proposed API extension has been presented for the authors of
userspace applications and libraries using the current API: libmbim,
libqmi, uqmi, oFono and ModemManager.  The replies were:

Aleksander Morgado:
 "We do really need max message size for MBIM; and as you say, it may be
  good to have the max message size info also for QMI, so the new ioctl
  seems a good addition. So +1 from my side, for what it's worth."

Dan Williams:
 "Yeah, +1 here.  I'd prefer the sysfs file, but the fact that that
  doesn't work for fd passing pretty much kills it."

No negative replies are so far received.

Cc: Aleksander Morgado <aleksander@lanedo.com>
Cc: Dan Williams <dcbw@redhat.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-25 13:32:20 -07:00
Paul Gortmaker
a786a7c0ad wanrouter: completely decouple obsolete code from kernel.
The original suggestion to delete wanrouter started earlier
with the mainline commit f0d1b3c2bc
("net/wanrouter: Deprecate and schedule for removal") in May 2012.

More importantly, Dan Carpenter found[1] that the driver had a
fundamental breakage introduced back in 2008, with commit
7be6065b39 ("netdevice wanrouter: Convert directly reference of
netdev->priv").  So we know with certainty that the code hasn't been
used by anyone willing to at least take the effort to send an e-mail
report of breakage for at least 4 years.

This commit does a decouple of the wanrouter subsystem, by going
after the Makefile/Kconfig and similar files, so that these mainline
files that we are keeping do not have the big wanrouter file/driver
deletion commit tied into their history.

Once this commit is in place, we then can remove the obsolete cyclomx
drivers and similar that have a dependency on CONFIG_WAN_ROUTER_DRIVERS.

[1] http://www.spinics.net/lists/netdev/msg218670.html

Originally-by: Joe Perches <joe@perches.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2013-01-31 19:20:33 -05:00
Mauro Carvalho Chehab
1511288620 ioctl-number.txt: Remove legacy private ioctl's from media drivers
None of those drivers use private ioctl's, as they all got converted
to the standard V4L2 ones.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-14 00:07:39 -03:00
Alex Williamson
cba3345cc4 vfio: VFIO core
VFIO is a secure user level driver for use with both virtual machines
and user level drivers.  VFIO makes use of IOMMU groups to ensure the
isolation of devices in use, allowing unprivileged user access.  It's
intended that VFIO will replace KVM device assignment and UIO drivers
(in cases where the target platform includes a sufficiently capable
IOMMU).

New in this version of VFIO is support for IOMMU groups managed
through the IOMMU core as well as a rework of the API, removing the
group merge interface.  We now go back to a model more similar to
original VFIO with UIOMMU support where the file descriptor obtained
from /dev/vfio/vfio allows access to the IOMMU, but only after a
group is added, avoiding the previous privilege issues with this type
of model.  IOMMU support is also now fully modular as IOMMUs have
vastly different interface requirements on different platforms.  VFIO
users are able to query and initialize the IOMMU model of their
choice.

Please see the follow-on Documentation commit for further description
and usage example.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2012-07-31 08:16:22 -06:00
Tomas Winkler
4cd7a7e72e mei: update Documentation/ioctl/ioctl-number.txt
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-09 14:00:31 -07:00
Linus Torvalds
b1a808ff43 Merge branch 'for-next' of git://gitorious.org/kernel-hsi/kernel-hsi
Pull HSI (High Speed Synchronous Serial Interface) framework from Carlos Chinea:
 "The High Speed Synchronous Serial Interface (HSI) is a serial
  interface mainly used for connecting application engines (APE) with
  cellular modem engines (CMT) in cellular handsets.

  The framework is currently being used for some people and we would
  like to see it integrated into the kernel for 3.3.  There is no HW
  controller drivers in this pull, but some people have already some of
  them pending which they would like to push as soon as this integrated.
  I am also working on the acceptance for an TI OMAP one, based on a
  compatible legacy version of the interface called SSI."

Ok, so it didn't get into 3.3, but here it is pulled into 3.4.

Several people piped up to say "yeah, we want this".

* 'for-next' of git://gitorious.org/kernel-hsi/kernel-hsi:
  HSI: hsi_char: Update ioctl-number.txt
  HSI: Add HSI API documentation
  HSI: hsi_char: Add HSI char device kernel configuration
  HSI: hsi_char: Add HSI char device driver
  HSI: hsi: Introducing HSI framework
2012-04-02 09:50:40 -07:00
Linus Torvalds
e2a0883e40 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs pile 1 from Al Viro:
 "This is _not_ all; in particular, Miklos' and Jan's stuff is not there
  yet."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (64 commits)
  ext4: initialization of ext4_li_mtx needs to be done earlier
  debugfs-related mode_t whack-a-mole
  hfsplus: add an ioctl to bless files
  hfsplus: change finder_info to u32
  hfsplus: initialise userflags
  qnx4: new helper - try_extent()
  qnx4: get rid of qnx4_bread/qnx4_getblk
  take removal of PF_FORKNOEXEC to flush_old_exec()
  trim includes in inode.c
  um: uml_dup_mmap() relies on ->mmap_sem being held, but activate_mm() doesn't hold it
  um: embed ->stub_pages[] into mmu_context
  gadgetfs: list_for_each_safe() misuse
  ocfs2: fix leaks on failure exits in module_init
  ecryptfs: make register_filesystem() the last potential failure exit
  ntfs: forgets to unregister sysctls on register_filesystem() failure
  logfs: missing cleanup on register_filesystem() failure
  jfs: mising cleanup on register_filesystem() failure
  make configfs_pin_fs() return root dentry on success
  configfs: configfs_create_dir() has parent dentry in dentry->d_parent
  configfs: sanitize configfs_create()
  ...
2012-03-21 13:36:41 -07:00
Linus Torvalds
69a7aebcf0 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree from Jiri Kosina:
 "It's indeed trivial -- mostly documentation updates and a bunch of
  typo fixes from Masanari.

  There are also several linux/version.h include removals from Jesper."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (101 commits)
  kcore: fix spelling in read_kcore() comment
  constify struct pci_dev * in obvious cases
  Revert "char: Fix typo in viotape.c"
  init: fix wording error in mm_init comment
  usb: gadget: Kconfig: fix typo for 'different'
  Revert "power, max8998: Include linux/module.h just once in drivers/power/max8998_charger.c"
  writeback: fix fn name in writeback_inodes_sb_nr_if_idle() comment header
  writeback: fix typo in the writeback_control comment
  Documentation: Fix multiple typo in Documentation
  tpm_tis: fix tis_lock with respect to RCU
  Revert "media: Fix typo in mixer_drv.c and hdmi_drv.c"
  Doc: Update numastat.txt
  qla4xxx: Add missing spaces to error messages
  compiler.h: Fix typo
  security: struct security_operations kerneldoc fix
  Documentation: broken URL in libata.tmpl
  Documentation: broken URL in filesystems.tmpl
  mtd: simplify return logic in do_map_probe()
  mm: fix comment typo of truncate_inode_pages_range
  power: bq27x00: Fix typos in comment
  ...
2012-03-20 21:12:50 -07:00
Linus Torvalds
3b59bf0816 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking merge from David Miller:
 "1) Move ixgbe driver over to purely page based buffering on receive.
     From Alexander Duyck.

  2) Add receive packet steering support to e1000e, from Bruce Allan.

  3) Convert TCP MD5 support over to RCU, from Eric Dumazet.

  4) Reduce cpu usage in handling out-of-order TCP packets on modern
     systems, also from Eric Dumazet.

  5) Support the IP{,V6}_UNICAST_IF socket options, making the wine
     folks happy, from Erich Hoover.

  6) Support VLAN trunking from guests in hyperv driver, from Haiyang
     Zhang.

  7) Support byte-queue-limtis in r8169, from Igor Maravic.

  8) Outline code intended for IP_RECVTOS in IP_PKTOPTIONS existed but
     was never properly implemented, Jiri Benc fixed that.

  9) 64-bit statistics support in r8169 and 8139too, from Junchang Wang.

  10) Support kernel side dump filtering by ctmark in netfilter
      ctnetlink, from Pablo Neira Ayuso.

  11) Support byte-queue-limits in gianfar driver, from Paul Gortmaker.

  12) Add new peek socket options to assist with socket migration, from
      Pavel Emelyanov.

  13) Add sch_plug packet scheduler whose queue is controlled by
      userland daemons using explicit freeze and release commands.  From
      Shriram Rajagopalan.

  14) Fix FCOE checksum offload handling on transmit, from Yi Zou."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1846 commits)
  Fix pppol2tp getsockname()
  Remove printk from rds_sendmsg
  ipv6: fix incorrent ipv6 ipsec packet fragment
  cpsw: Hook up default ndo_change_mtu.
  net: qmi_wwan: fix build error due to cdc-wdm dependecy
  netdev: driver: ethernet: Add TI CPSW driver
  netdev: driver: ethernet: add cpsw address lookup engine support
  phy: add am79c874 PHY support
  mlx4_core: fix race on comm channel
  bonding: send igmp report for its master
  fs_enet: Add MPC5125 FEC support and PHY interface selection
  net: bpf_jit: fix BPF_S_LDX_B_MSH compilation
  net: update the usage of CHECKSUM_UNNECESSARY
  fcoe: use CHECKSUM_UNNECESSARY instead of CHECKSUM_PARTIAL on tx
  net: do not do gso for CHECKSUM_UNNECESSARY in netif_needs_gso
  ixgbe: Fix issues with SR-IOV loopback when flow control is disabled
  net/hyperv: Fix the code handling tx busy
  ixgbe: fix namespace issues when FCoE/DCB is not enabled
  rtlwifi: Remove unused ETH_ADDR_LEN defines
  igbvf: Use ETH_ALEN
  ...

Fix up fairly trivial conflicts in drivers/isdn/gigaset/interface.c and
drivers/net/usb/{Kconfig,qmi_wwan.c} as per David.
2012-03-20 21:04:47 -07:00
Matthew Garrett
a051f71ce9 hfsplus: add an ioctl to bless files
Making an hfsplus partition bootable requires the ability to "bless" a
file by putting its inode number in the volume header. Doing this from
userspace on a mounted filesystem is impractical since the kernel will
write back the original values on unmount. Add an ioctl to allow userspace
to update the volume header information based on the target file.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-03-20 21:29:53 -04:00
Masanari Iida
40e47125e6 Documentation: Fix multiple typo in Documentation
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-03-07 16:08:24 +01:00
Paul Mackerras
bf7daebb9f ppp: Move ioctl definitions from if_ppp.h to new ppp-ioctl.h
This moves the definitions of the ioctls, constants and structures
relating to the ppp_generic interface to userspace out from if_ppp.h
to a new file, ppp-ioctl.h.  The new file has my copyright since I
designed and implemented the ppp_generic interface in the late 1990s.
None of the contents of this file comes from the original if_ppp.h
published by Carnegie Mellon University.

Of the remainder of if_ppp.h, only the PPP_MTU definition was being
used, and this replaces the uses of it with PPP_MRU (which is identical).
Therefore, this replaces the entire file with the single line

#include <linux/ppp-ioctl.h>

which clearly doesn't contain any CMU code.  Thus I have removed the
CMU copyright notice with its problematic advertising clause, and in
fact since it's only one trivial line I have not added any other
copyright notice.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-04 20:41:38 -05:00
Greg Kroah-Hartman
bc5bca53cc driver-core: documentation: fix up Greg's email address
My old email address was used in a lot of documentation files, so fix
this up to point to the correct one now.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-15 14:48:01 -08:00
Andras Domokos
43139a61fc HSI: hsi_char: Update ioctl-number.txt
Added ioctl range for HSI char devices to the documentation

Signed-off-by: Andras Domokos <andras.domokos@nokia.com>
Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
2012-01-05 15:42:13 +02:00
Matthew Wilcox
b60503ba43 NVMe: New driver
This driver is for devices that follow the NVM Express standard

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:51 -04:00
Mathieu Desnoyers
14d01ff534 ioctl: register LTTng ioctl
The LTTng 2.0 kernel tracer (stand-alone module package, available at
http://lttng.org) uses the 0xF6 ioctl range for tracer control and
transport operations.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-12 11:50:56 -07:00
Linus Torvalds
1850536b93 Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/tile/mm/init.c: trivial: use BUG_ON
  arch/tile: remove useless set_fixmap_nocache() macro
  arch/tile: add hypervisor-based character driver for SPI flash ROM
  ioctl-number.txt: add the tile hardwall ioctl range
  tile: use generic-y format for one-line asm-generic headers
  clocksource: tile: convert to use clocksource_register_hz
2011-08-02 21:16:11 -10:00
Timur Tabi
6db7199407 drivers/virt: introduce Freescale hypervisor management driver
Add the drivers/virt directory, which houses drivers that support
virtualization environments, and add the Freescale hypervisor management
driver.

The Freescale hypervisor management driver provides several services to
drivers and applications related to the Freescale hypervisor:

1. An ioctl interface for querying and managing partitions

2. A file interface to reading incoming doorbells

3. An interrupt handler for shutting down the partition upon receiving the
   shutdown doorbell from a manager partition

4. A kernel interface for receiving callbacks when a managed partition
   shuts down.

Signed-off-by: Timur Tabi <timur@freescale.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-07-08 00:21:27 -05:00
Chris Metcalf
ea41b1e544 ioctl-number.txt: add the tile hardwall ioctl range
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2011-06-10 10:14:03 -04:00
Linus Torvalds
8c1c77ff9b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (75 commits)
  mmc: core: eMMC bus width may not work on all platforms
  mmc: sdhci: Auto-CMD23 fixes.
  mmc: sdhci: Auto-CMD23 support.
  mmc: core: Block CMD23 support for UHS104/SDXC cards.
  mmc: sdhci: Implement MMC_CAP_CMD23 for SDHCI.
  mmc: core: Use CMD23 for multiblock transfers when we can.
  mmc: quirks: Add/remove quirks conditional support.
  mmc: Add new VUB300 USB-to-SD/SDIO/MMC driver
  mmc: sdhci-pxa: Add quirks for DMA/ADMA to match h/w
  mmc: core: duplicated trial with same freq in mmc_rescan_try_freq()
  mmc: core: add support for eMMC Dual Data Rate
  mmc: core: eMMC signal voltage does not use CMD11
  mmc: sdhci-pxa: add platform code for UHS signaling
  mmc: sdhci: add hooks for setting UHS in platform specific code
  mmc: core: clear MMC_PM_KEEP_POWER flag on resume
  mmc: dw_mmc: fixed wrong regulator_enable in suspend/resume
  mmc: sdhi: allow powering down controller with no card inserted
  mmc: tmio: runtime suspend the controller, where possible
  mmc: sdhi: support up to 3 interrupt sources
  mmc: sdhi: print physical base address and clock rate
  ...
2011-05-25 16:55:55 -07:00
John Calixto
cb87ea28ed mmc: core: Add mmc CMD+ACMD passthrough ioctl
Allows appropriately-privileged applications to send CMD (normal) and ACMD
(application-specific; preceded with CMD55) commands to cards/devices on
the mmc bus.  This is primarily useful for enabling the security
functionality built in to every SD card.

It can also be used as a generic passthrough (e.g. to enable virtual
machines to control mmc bus devices directly).  However, this use case has
not been tested rigorously.  Generic passthrough testing was only conducted
for a few non-security opcodes to prove the feasibility of the passthrough.

Since any opcode can be sent using this passthrough, it is very possible to
render the card/device unusable.  Applications that use this ioctl must
have CAP_SYS_RAWIO.

Security commands tested on TI PCIxx12 (SDHCI), Sigma Designs SMP8652 SoC,
TI OMAP3621/OMAP3630 SoC, Samsung S5PC110 SoC, Qualcomm MSM7200A SoC.

Signed-off-by: John Calixto <john.calixto@modsystems.com>
Reviewed-by: Andrei Warkentin <andreiw@motorola.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24 21:02:54 -04:00
Laurent Pinchart
5f7088127e [media] uvcvideo: Make the API public
Move the public API definitions to include/linux/uvcvideo.h and bump the
version number to 1.1.0. Compatibility with the old API is kept,
application can still be compiled against the private header and will
not break.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-05-20 09:30:46 -03:00
Linus Torvalds
76d21c5635 Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (442 commits)
  [media] videobuf2-dma-contig: make cookie() return a pointer to dma_addr_t
  [media] sh_mobile_ceu_camera: Do not call vb2's mem_ops directly
  [media] V4L: soc-camera: explicitly require V4L2_BUF_TYPE_VIDEO_CAPTURE
  [media] v4l: soc-camera: Store negotiated buffer settings
  [media] rc: interim support for 32-bit NEC-ish scancodes
  [media] mceusb: topseed 0x0011 needs gen3 init for tx to work
  [media] lirc_zilog: error out if buffer read bytes != chunk size
  [media] lirc: silence some compile warnings
  [media] hdpvr: use same polling interval as other OS
  [media] ir-kbd-i2c: pass device code w/key in hauppauge case
  [media] rc/keymaps: Remove the obsolete rc-rc5-tv keymap
  [media] remove the old RC_MAP_HAUPPAUGE_NEW RC map
  [media] rc/keymaps: Rename Hauppauge table as rc-hauppauge
  [media] rc-rc5-hauppauge-new: Fix Hauppauge Grey mapping
  [media] rc-rc5-hauppauge-new: Add support for the old Black RC
  [media] rc-rc5-hauppauge-new: Add the old control to the table
  [media] rc-winfast: Fix the keycode tables
  [media] a800: Fix a few wrong IR key assignments
  [media] opera1: Use multimedia keys instead of an app-specific mapping
  [media] dw2102: Use multimedia keys instead of an app-specific mapping
  ...

Fix up trivial conflicts (remove/modify and some real conflicts) in:
	arch/arm/mach-omap2/devices.c
	drivers/staging/Kconfig
	drivers/staging/Makefile
	drivers/staging/dabusb/dabusb.c
	drivers/staging/dabusb/dabusb.h
	drivers/staging/easycap/easycap_ioctl.c
	drivers/staging/usbvideo/usbvideo.c
	drivers/staging/usbvideo/vicam.c
2011-03-24 09:50:13 -07:00
Laurent Pinchart
474966ee01 [media] media: Pick a free ioctls range
Pick an unused range of ioctls in Documentation/ioctl/ioctl-number.txt
and use it for the MEDIA_IOC_* ioctls.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-03-22 04:53:56 -03:00
Stefan Achatz
5dc0c9835f HID: roccat: Rename header roccat.h -> hid-roccat.h
It was desired that the header roccat.h should be named hid-roccat.h

Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-02-03 16:37:28 +01:00
Stefan Achatz
8211e46004 HID: roccat: Add ioctl command to retreive report size from chardev
Roccat chardev was reworked to support only a defined report size per
device and this can be retreived by an ioctl now to enable future changes
in report definitions.
Header was moved/renamed from drivers/hid to include/linux for accessibility.

Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-02-03 16:37:28 +01:00
Alexander Gordeev
717c033669 pps: add kernel consumer support
Add an optional feature of PPSAPI, kernel consumer support, which uses the
added hardpps() function.

Signed-off-by: Alexander Gordeev <lasaine@lvk.cs.msu.su>
Acked-by: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13 08:03:21 -08:00
Hans Verkuil
66832aef06 [media] bt819: the ioctls in the header are internal to the kernel
Remove bt819.h from ioctl-number.txt and make a note in the header
that these ioctls are for internal use only.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-12-29 08:17:19 -02:00
Hans Verkuil
b9218f2f15 [media] saa6588: rename rds.h to saa6588.h
The naming of the media/rds.h header suggested that it was a generic
RDS header, when in fact it is just a saa6588 module API that is
internal to the kernel.

Rename the header and the struct and defines in it to make this clear.

Also removed the header include in radio-si470x.h (not used anymore)
and from ioctl-number.txt (it's internal to the kernel and never called
from userspace).

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-12-29 08:17:18 -02:00
Mauro Carvalho Chehab
38af87869e [media] Documentation/ioctl/ioctl-number.txt: Remove some now freed ioctl ranges
The V4L1 removal patches removed a few ioctls. Update it at the docspace.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-12-29 08:17:11 -02:00
Linus Torvalds
f063a0c0c9 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (841 commits)
  Staging: brcm80211: fix usage of roundup in structures
  Staging: bcm: fix up network device reference counting
  Staging: keucr: fix up US_ macro change
  staging: brcm80211: brcmfmac: Removed codeversion from firmware filenames.
  staging: brcm80211: Remove unnecessary header files.
  staging: brcm80211: Remove unnecessary includes from bcmutils.c
  staging: brcm80211: Removed unnecessary pktsetprio() function.
  Staging: brcm80211: remove typedefs.h
  Staging: brcm80211: remove uintptr typedef usage
  Staging: hv: remove struct vmbus_channel_interface
  Staging: hv: remove Open from struct vmbus_channel_interface
  Staging: hv: storvsc: call vmbus_open directly
  Staging: hv: netvsc: call vmbus_open directly
  Staging: hv: channel: export vmbus_open to modules
  Staging: hv: remove Close from struct vmbus_channel_interface
  Staging: hv: netvsc: call vmbus_close directly
  Staging: hv: storvsc: call vmbus_close directly
  Staging: hv: channel: export vmbus_close to modules
  Staging: hv: remove SendPacket from struct vmbus_channel_interface
  Staging: hv: storvsc: call vmbus_sendpacket directly
  ...

Fix up conflicts in
	drivers/staging/cx25821/cx25821-audio-upstream.c
	drivers/staging/cx25821/cx25821-audio.h
due to warring whitespace cleanups (neither of which were all that great)
2010-10-28 12:13:00 -07:00