diff options
Diffstat (limited to 'Documentation')
76 files changed, 1831 insertions, 375 deletions
diff --git a/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus b/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus index c2a270b45b0..833fd59926a 100644 --- a/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus +++ b/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus @@ -8,3 +8,41 @@ Description: The integer value of this attribute ranges from 0-4. When written, this file sets the number of the startup profile and the mouse activates this profile immediately. Please use actual_profile, it does the same thing. +Users: http://roccat.sourceforge.net + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/firmware_version +Date: October 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: When read, this file returns the raw integer version number of the + firmware reported by the mouse. Using the integer value eases + further usage in other programs. To receive the real version + number the decimal point has to be shifted 2 positions to the + left. E.g. a returned value of 121 means 1.21 + This file is readonly. + Please read binary attribute info which contains firmware version. +Users: http://roccat.sourceforge.net + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/profile[1-5]_buttons +Date: August 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: The mouse can store 5 profiles which can be switched by the + press of a button. A profile is split in settings and buttons. + profile_buttons holds information about button layout. + When read, these files return the respective profile buttons. + The returned data is 77 bytes in size. + This file is readonly. + Write control to select profile and read profile_buttons instead. +Users: http://roccat.sourceforge.net + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/profile[1-5]_settings +Date: August 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: The mouse can store 5 profiles which can be switched by the + press of a button. A profile is split in settings and buttons. + profile_settings holds information like resolution, sensitivity + and light effects. + When read, these files return the respective profile settings. + The returned data is 43 bytes in size. + This file is readonly. + Write control to select profile and read profile_settings instead. +Users: http://roccat.sourceforge.net
\ No newline at end of file diff --git a/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-kovaplus b/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-kovaplus new file mode 100644 index 00000000000..4a98e02b6c6 --- /dev/null +++ b/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-kovaplus @@ -0,0 +1,66 @@ +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/actual_cpi +Date: January 2011 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: The integer value of this attribute ranges from 1-4. + When read, this attribute returns the number of the active + cpi level. + This file is readonly. + Has never been used. If bookkeeping is done, it's done in userland tools. +Users: http://roccat.sourceforge.net + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/actual_sensitivity_x +Date: January 2011 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: The integer value of this attribute ranges from 1-10. + When read, this attribute returns the number of the actual + sensitivity in x direction. + This file is readonly. + Has never been used. If bookkeeping is done, it's done in userland tools. +Users: http://roccat.sourceforge.net + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/actual_sensitivity_y +Date: January 2011 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: The integer value of this attribute ranges from 1-10. + When read, this attribute returns the number of the actual + sensitivity in y direction. + This file is readonly. + Has never been used. If bookkeeping is done, it's done in userland tools. +Users: http://roccat.sourceforge.net + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/firmware_version +Date: January 2011 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: When read, this file returns the raw integer version number of the + firmware reported by the mouse. Using the integer value eases + further usage in other programs. To receive the real version + number the decimal point has to be shifted 2 positions to the + left. E.g. a returned value of 121 means 1.21 + This file is readonly. + Obsoleted by binary sysfs attribute "info". +Users: http://roccat.sourceforge.net + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/profile[1-5]_buttons +Date: January 2011 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: The mouse can store 5 profiles which can be switched by the + press of a button. A profile is split in settings and buttons. + profile_buttons holds information about button layout. + When read, these files return the respective profile buttons. + The returned data is 23 bytes in size. + This file is readonly. + Write control to select profile and read profile_buttons instead. +Users: http://roccat.sourceforge.net + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/profile[1-5]_settings +Date: January 2011 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: The mouse can store 5 profiles which can be switched by the + press of a button. A profile is split in settings and buttons. + profile_settings holds information like resolution, sensitivity + and light effects. + When read, these files return the respective profile settings. + The returned data is 16 bytes in size. + This file is readonly. + Write control to select profile and read profile_settings instead. +Users: http://roccat.sourceforge.net diff --git a/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-pyra b/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-pyra new file mode 100644 index 00000000000..87ac87e9556 --- /dev/null +++ b/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-pyra @@ -0,0 +1,73 @@ +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/actual_cpi +Date: August 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: It is possible to switch the cpi setting of the mouse with the + press of a button. + When read, this file returns the raw number of the actual cpi + setting reported by the mouse. This number has to be further + processed to receive the real dpi value. + + VALUE DPI + 1 400 + 2 800 + 4 1600 + + This file is readonly. + Has never been used. If bookkeeping is done, it's done in userland tools. +Users: http://roccat.sourceforge.net + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/actual_profile +Date: August 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: When read, this file returns the number of the actual profile in + range 0-4. + This file is readonly. + Please use binary attribute "settings" which provides this information. +Users: http://roccat.sourceforge.net + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/firmware_version +Date: August 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: When read, this file returns the raw integer version number of the + firmware reported by the mouse. Using the integer value eases + further usage in other programs. To receive the real version + number the decimal point has to be shifted 2 positions to the + left. E.g. a returned value of 138 means 1.38 + This file is readonly. + Please use binary attribute "info" which provides this information. +Users: http://roccat.sourceforge.net + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/profile[1-5]_buttons +Date: August 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: The mouse can store 5 profiles which can be switched by the + press of a button. A profile is split in settings and buttons. + profile_buttons holds information about button layout. + When read, these files return the respective profile buttons. + The returned data is 19 bytes in size. + This file is readonly. + Write control to select profile and read profile_buttons instead. +Users: http://roccat.sourceforge.net + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/profile[1-5]_settings +Date: August 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: The mouse can store 5 profiles which can be switched by the + press of a button. A profile is split in settings and buttons. + profile_settings holds information like resolution, sensitivity + and light effects. + When read, these files return the respective profile settings. + The returned data is 13 bytes in size. + This file is readonly. + Write control to select profile and read profile_settings instead. +Users: http://roccat.sourceforge.net + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/startup_profile +Date: August 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: The integer value of this attribute ranges from 0-4. + When read, this attribute returns the number of the profile + that's active when the mouse is powered on. + This file is readonly. + Please use binary attribute "settings" which provides this information. +Users: http://roccat.sourceforge.net diff --git a/Documentation/ABI/testing/dev-kmsg b/Documentation/ABI/testing/dev-kmsg index 7e7e07a82e0..bb820be4817 100644 --- a/Documentation/ABI/testing/dev-kmsg +++ b/Documentation/ABI/testing/dev-kmsg @@ -92,7 +92,7 @@ Description: The /dev/kmsg character device node provides userspace access The flags field carries '-' by default. A 'c' indicates a fragment of a line. All following fragments are flagged with '+'. Note, that these hints about continuation lines are not - neccessarily correct, and the stream could be interleaved with + necessarily correct, and the stream could be interleaved with unrelated messages, but merging the lines in the output usually produces better human readable results. A similar logic is used internally when messages are printed to the diff --git a/Documentation/ABI/testing/sysfs-bus-mdio b/Documentation/ABI/testing/sysfs-bus-mdio new file mode 100644 index 00000000000..6349749ebc2 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-mdio @@ -0,0 +1,9 @@ +What: /sys/bus/mdio_bus/devices/.../phy_id +Date: November 2012 +KernelVersion: 3.8 +Contact: netdev@vger.kernel.org +Description: + This attribute contains the 32-bit PHY Identifier as reported + by the device during bus enumeration, encoded in hexadecimal. + This ID is used to match the device with the appropriate + driver. diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci index dff1f48d252..1ce5ae329c0 100644 --- a/Documentation/ABI/testing/sysfs-bus-pci +++ b/Documentation/ABI/testing/sysfs-bus-pci @@ -222,3 +222,37 @@ Description: satisfied too. Reading this attribute will show the current value of d3cold_allowed bit. Writing this attribute will set the value of d3cold_allowed bit. + +What: /sys/bus/pci/devices/.../sriov_totalvfs +Date: November 2012 +Contact: Donald Dutile <ddutile@redhat.com> +Description: + This file appears when a physical PCIe device supports SR-IOV. + Userspace applications can read this file to determine the + maximum number of Virtual Functions (VFs) a PCIe physical + function (PF) can support. Typically, this is the value reported + in the PF's SR-IOV extended capability structure's TotalVFs + element. Drivers have the ability at probe time to reduce the + value read from this file via the pci_sriov_set_totalvfs() + function. + +What: /sys/bus/pci/devices/.../sriov_numvfs +Date: November 2012 +Contact: Donald Dutile <ddutile@redhat.com> +Description: + This file appears when a physical PCIe device supports SR-IOV. + Userspace applications can read and write to this file to + determine and control the enablement or disablement of Virtual + Functions (VFs) on the physical function (PF). A read of this + file will return the number of VFs that are enabled on this PF. + A number written to this file will enable the specified + number of VFs. A userspace application would typically read the + file and check that the value is zero, and then write the number + of VFs that should be enabled on the PF; the value written + should be less than or equal to the value in the sriov_totalvfs + file. A userspace application wanting to disable the VFs would + write a zero to this file. The core ensures that valid values + are written to this file, and returns errors when values are not + valid. For example, writing a 2 to this file when sriov_numvfs + is not 0 and not 2 already will return an error. Writing a 10 + when the value of sriov_totalvfs is 8 will return an error. diff --git a/Documentation/ABI/testing/sysfs-class-net-batman-adv b/Documentation/ABI/testing/sysfs-class-net-batman-adv index 38dd762def4..bdc00707c75 100644 --- a/Documentation/ABI/testing/sysfs-class-net-batman-adv +++ b/Documentation/ABI/testing/sysfs-class-net-batman-adv @@ -1,4 +1,10 @@ +What: /sys/class/net/<iface>/batman-adv/iface_status +Date: May 2010 +Contact: Marek Lindner <lindner_marek@yahoo.de> +Description: + Indicates the status of <iface> as it is seen by batman. + What: /sys/class/net/<iface>/batman-adv/mesh_iface Date: May 2010 Contact: Marek Lindner <lindner_marek@yahoo.de> @@ -7,8 +13,3 @@ Description: displays the batman mesh interface this <iface> currently is associated with. -What: /sys/class/net/<iface>/batman-adv/iface_status -Date: May 2010 -Contact: Marek Lindner <lindner_marek@yahoo.de> -Description: - Indicates the status of <iface> as it is seen by batman. diff --git a/Documentation/ABI/testing/sysfs-class-net-grcan b/Documentation/ABI/testing/sysfs-class-net-grcan new file mode 100644 index 00000000000..f418c92ca55 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-net-grcan @@ -0,0 +1,35 @@ + +What: /sys/class/net/<iface>/grcan/enable0 +Date: October 2012 +KernelVersion: 3.8 +Contact: Andreas Larsson <andreas@gaisler.com> +Description: + Hardware configuration of physical interface 0. This file reads + and writes the "Enable 0" bit of the configuration register. + Possible values: 0 or 1. See the GRCAN chapter of the GRLIB IP + core library documentation for details. The default value is 0 + or set by the module parameter grcan.enable0 and can be read at + /sys/module/grcan/parameters/enable0. + +What: /sys/class/net/<iface>/grcan/enable1 +Date: October 2012 +KernelVersion: 3.8 +Contact: Andreas Larsson <andreas@gaisler.com> +Description: + Hardware configuration of physical interface 1. This file reads + and writes the "Enable 1" bit of the configuration register. + Possible values: 0 or 1. See the GRCAN chapter of the GRLIB IP + core library documentation for details. The default value is 0 + or set by the module parameter grcan.enable1 and can be read at + /sys/module/grcan/parameters/enable1. + +What: /sys/class/net/<iface>/grcan/select +Date: October 2012 +KernelVersion: 3.8 +Contact: Andreas Larsson <andreas@gaisler.com> +Description: + Configuration of which physical interface to be used. Possible + values: 0 or 1. See the GRCAN chapter of the GRLIB IP core + library documentation for details. The default value is 0 or is + set by the module parameter grcan.select and can be read at + /sys/module/grcan/parameters/select. diff --git a/Documentation/ABI/testing/sysfs-class-net-mesh b/Documentation/ABI/testing/sysfs-class-net-mesh index c81fe89c4c4..bc41da61608 100644 --- a/Documentation/ABI/testing/sysfs-class-net-mesh +++ b/Documentation/ABI/testing/sysfs-class-net-mesh @@ -6,6 +6,14 @@ Description: Indicates whether the batman protocol messages of the mesh <mesh_iface> shall be aggregated or not. +What: /sys/class/net/<mesh_iface>/mesh/ap_isolation +Date: May 2011 +Contact: Antonio Quartulli <ordex@autistici.org> +Description: + Indicates whether the data traffic going from a + wireless client to another wireless client will be + silently dropped. + What: /sys/class/net/<mesh_iface>/mesh/bonding Date: June 2010 Contact: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> @@ -31,14 +39,6 @@ Description: mesh will be fragmented or silently discarded if the packet size exceeds the outgoing interface MTU. -What: /sys/class/net/<mesh_iface>/mesh/ap_isolation -Date: May 2011 -Contact: Antonio Quartulli <ordex@autistici.org> -Description: - Indicates whether the data traffic going from a - wireless client to another wireless client will be - silently dropped. - What: /sys/class/net/<mesh_iface>/mesh/gw_bandwidth Date: October 2010 Contact: Marek Lindner <lindner_marek@yahoo.de> @@ -60,6 +60,13 @@ Description: Defines the selection criteria this node will use to choose a gateway if gw_mode was set to 'client'. +What: /sys/class/net/<mesh_iface>/mesh/hop_penalty +Date: Oct 2010 +Contact: Linus Lüssing <linus.luessing@web.de> +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/orig_interval Date: May 2010 Contact: Marek Lindner <lindner_marek@yahoo.de> @@ -67,19 +74,12 @@ Description: Defines the interval in milliseconds in which batman sends its protocol messages. -What: /sys/class/net/<mesh_iface>/mesh/hop_penalty -Date: Oct 2010 -Contact: Linus Lüssing <linus.luessing@web.de> -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/routing_algo -Date: Dec 2011 -Contact: Marek Lindner <lindner_marek@yahoo.de> +What: /sys/class/net/<mesh_iface>/mesh/routing_algo +Date: Dec 2011 +Contact: Marek Lindner <lindner_marek@yahoo.de> Description: - Defines the routing procotol this mesh instance - uses to find the optimal paths through the mesh. + Defines the routing procotol this mesh instance + uses to find the optimal paths through the mesh. What: /sys/class/net/<mesh_iface>/mesh/vis_mode Date: May 2010 diff --git a/Documentation/ABI/testing/sysfs-devices-power b/Documentation/ABI/testing/sysfs-devices-power index 7fc2997b23a..9d43e767084 100644 --- a/Documentation/ABI/testing/sysfs-devices-power +++ b/Documentation/ABI/testing/sysfs-devices-power @@ -164,7 +164,7 @@ Contact: Rafael J. Wysocki <rjw@sisk.pl> Description: The /sys/devices/.../wakeup_prevent_sleep_time_ms attribute contains the total time the device has been preventing - opportunistic transitions to sleep states from occuring. + opportunistic transitions to sleep states from occurring. This attribute is read-only. If the device is not enabled to wake up the system from sleep states, this attribute is not present. diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-isku b/Documentation/ABI/testing/sysfs-driver-hid-roccat-isku index 189dc43891b..9eca5a182e6 100644 --- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-isku +++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-isku @@ -117,6 +117,14 @@ Description: When written, this file lets one store macros with max 500 which profile and key to read. Users: http://roccat.sourceforge.net +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/reset +Date: November 2012 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: When written, this file lets one reset the device. + The data has to be 3 bytes long. + This file is writeonly. +Users: http://roccat.sourceforge.net + What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/control Date: June 2011 Contact: Stefan Achatz <erazor_de@users.sourceforge.net> diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus b/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus index 65e6e5dd67e..7bd776f9c3c 100644 --- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus +++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus @@ -9,15 +9,12 @@ Description: The integer value of this attribute ranges from 0-4. and the mouse activates this profile immediately. Users: http://roccat.sourceforge.net -What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/firmware_version -Date: October 2010 +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/info +Date: November 2012 Contact: Stefan Achatz <erazor_de@users.sourceforge.net> -Description: When read, this file returns the raw integer version number of the - firmware reported by the mouse. Using the integer value eases - further usage in other programs. To receive the real version - number the decimal point has to be shifted 2 positions to the - left. E.g. a returned value of 121 means 1.21 - This file is readonly. +Description: When read, this file returns general data like firmware version. + When written, the device can be reset. + The data is 8 bytes long. Users: http://roccat.sourceforge.net What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/macro @@ -42,18 +39,8 @@ Description: The mouse can store 5 profiles which can be switched by the The mouse will reject invalid data. Which profile to write is determined by the profile number contained in the data. - This file is writeonly. -Users: http://roccat.sourceforge.net - -What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/profile[1-5]_buttons -Date: August 2010 -Contact: Stefan Achatz <erazor_de@users.sourceforge.net> -Description: The mouse can store 5 profiles which can be switched by the - press of a button. A profile is split in settings and buttons. - profile_buttons holds information about button layout. - When read, these files return the respective profile buttons. - The returned data is 77 bytes in size. - This file is readonly. + Before reading this file, control has to be written to select + which profile to read. Users: http://roccat.sourceforge.net What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/profile_settings @@ -68,19 +55,8 @@ Description: The mouse can store 5 profiles which can be switched by the The mouse will reject invalid data. Which profile to write is determined by the profile number contained in the data. - This file is writeonly. -Users: http://roccat.sourceforge.net - -What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/profile[1-5]_settings -Date: August 2010 -Contact: Stefan Achatz <erazor_de@users.sourceforge.net> -Description: The mouse can store 5 profiles which can be switched by the - press of a button. A profile is split in settings and buttons. - profile_settings holds information like resolution, sensitivity - and light effects. - When read, these files return the respective profile settings. - The returned data is 43 bytes in size. - This file is readonly. + Before reading this file, control has to be written to select + which profile to read. Users: http://roccat.sourceforge.net What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/sensor @@ -104,9 +80,9 @@ What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid- Date: October 2010 Contact: Stefan Achatz <erazor_de@users.sourceforge.net> Description: When written a calibration process for the tracking control unit - can be initiated/cancelled. - The data has to be 3 bytes long. - This file is writeonly. + can be initiated/cancelled. Also lets one read/write sensor + registers. + The data has to be 4 bytes long. Users: http://roccat.sourceforge.net What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/tcu_image diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-kovaplus b/Documentation/ABI/testing/sysfs-driver-hid-roccat-kovaplus index 20f937c9d84..a10404f15a5 100644 --- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-kovaplus +++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-kovaplus @@ -1,12 +1,3 @@ -What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/actual_cpi -Date: January 2011 -Contact: Stefan Achatz <erazor_de@users.sourceforge.net> -Description: The integer value of this attribute ranges from 1-4. - When read, this attribute returns the number of the active - cpi level. - This file is readonly. -Users: http://roccat.sourceforge.net - What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/actual_profile Date: January 2011 Contact: Stefan Achatz <erazor_de@users.sourceforge.net> @@ -18,33 +9,12 @@ Description: The integer value of this attribute ranges from 0-4. active when the mouse is powered on. Users: http://roccat.sourceforge.net -What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/actual_sensitivity_x -Date: January 2011 +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/info +Date: November 2012 Contact: Stefan Achatz <erazor_de@users.sourceforge.net> -Description: The integer value of this attribute ranges from 1-10. - When read, this attribute returns the number of the actual - sensitivity in x direction. - This file is readonly. -Users: http://roccat.sourceforge.net - -What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/actual_sensitivity_y -Date: January 2011 -Contact: Stefan Achatz <erazor_de@users.sourceforge.net> -Description: The integer value of this attribute ranges from 1-10. - When read, this attribute returns the number of the actual - sensitivity in y direction. - This file is readonly. -Users: http://roccat.sourceforge.net - -What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/firmware_version -Date: January 2011 -Contact: Stefan Achatz <erazor_de@users.sourceforge.net> -Description: When read, this file returns the raw integer version number of the - firmware reported by the mouse. Using the integer value eases - further usage in other programs. To receive the real version - number the decimal point has to be shifted 2 positions to the - left. E.g. a returned value of 121 means 1.21 - This file is readonly. +Description: When read, this file returns general data like firmware version. + When written, the device can be reset. + The data is 6 bytes long. Users: http://roccat.sourceforge.net What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/profile_buttons @@ -58,18 +28,8 @@ Description: The mouse can store 5 profiles which can be switched by the The mouse will reject invalid data. Which profile to write is determined by the profile number contained in the data. - This file is writeonly. -Users: http://roccat.sourceforge.net - -What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/profile[1-5]_buttons -Date: January 2011 -Contact: Stefan Achatz <erazor_de@users.sourceforge.net> -Description: The mouse can store 5 profiles which can be switched by the - press of a button. A profile is split in settings and buttons. - profile_buttons holds information about button layout. - When read, these files return the respective profile buttons. - The returned data is 23 bytes in size. - This file is readonly. + Before reading this file, control has to be written to select + which profile to read. Users: http://roccat.sourceforge.net What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/profile_settings @@ -84,17 +44,6 @@ Description: The mouse can store 5 profiles which can be switched by the The mouse will reject invalid data. Which profile to write is determined by the profile number contained in the data. - This file is writeonly. -Users: http://roccat.sourceforge.net - -What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/profile[1-5]_settings -Date: January 2011 -Contact: Stefan Achatz <erazor_de@users.sourceforge.net> -Description: The mouse can store 5 profiles which can be switched by the - press of a button. A profile is split in settings and buttons. - profile_settings holds information like resolution, sensitivity - and light effects. - When read, these files return the respective profile settings. - The returned data is 16 bytes in size. - This file is readonly. + Before reading this file, control has to be written to select + which profile to read. Users: http://roccat.sourceforge.net diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-lua b/Documentation/ABI/testing/sysfs-driver-hid-roccat-lua new file mode 100644 index 00000000000..31c6c4c8ba2 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-lua @@ -0,0 +1,7 @@ +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/control +Date: October 2012 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: When written, cpi, button and light settings can be configured. + When read, actual cpi setting and sensor data are returned. + The data has to be 8 bytes long. +Users: http://roccat.sourceforge.net diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-pyra b/Documentation/ABI/testing/sysfs-driver-hid-roccat-pyra index 3f8de50e4ff..9fa9de30d14 100644 --- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-pyra +++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-pyra @@ -1,37 +1,9 @@ -What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/actual_cpi -Date: August 2010 -Contact: Stefan Achatz <erazor_de@users.sourceforge.net> -Description: It is possible to switch the cpi setting of the mouse with the - press of a button. - When read, this file returns the raw number of the actual cpi - setting reported by the mouse. This number has to be further - processed to receive the real dpi value. - - VALUE DPI - 1 400 - 2 800 - 4 1600 - - This file is readonly. -Users: http://roccat.sourceforge.net - -What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/actual_profile -Date: August 2010 +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/info +Date: November 2012 Contact: Stefan Achatz <erazor_de@users.sourceforge.net> -Description: When read, this file returns the number of the actual profile in - range 0-4. - This file is readonly. -Users: http://roccat.sourceforge.net - -What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/firmware_version -Date: August 2010 -Contact: Stefan Achatz <erazor_de@users.sourceforge.net> -Description: When read, this file returns the raw integer version number of the - firmware reported by the mouse. Using the integer value eases - further usage in other programs. To receive the real version - number the decimal point has to be shifted 2 positions to the - left. E.g. a returned value of 138 means 1.38 - This file is readonly. +Description: When read, this file returns general data like firmware version. + When written, the device can be reset. + The data is 6 bytes long. Users: http://roccat.sourceforge.net What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/profile_settings @@ -46,19 +18,8 @@ Description: The mouse can store 5 profiles which can be switched by the The mouse will reject invalid data. Which profile to write is determined by the profile number contained in the data. - This file is writeonly. -Users: http://roccat.sourceforge.net - -What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/profile[1-5]_settings -Date: August 2010 -Contact: Stefan Achatz <erazor_de@users.sourceforge.net> -Description: The mouse can store 5 profiles which can be switched by the - press of a button. A profile is split in settings and buttons. - profile_settings holds information like resolution, sensitivity - and light effects. - When read, these files return the respective profile settings. - The returned data is 13 bytes in size. - This file is readonly. + Before reading this file, control has to be written to select + which profile to read. Users: http://roccat.sourceforge.net What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/profile_buttons @@ -72,27 +33,8 @@ Description: The mouse can store 5 profiles which can be switched by the The mouse will reject invalid data. Which profile to write is determined by the profile number contained in the data. - This file is writeonly. -Users: http://roccat.sourceforge.net - -What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/profile[1-5]_buttons -Date: August 2010 -Contact: Stefan Achatz <erazor_de@users.sourceforge.net> -Description: The mouse can store 5 profiles which can be switched by the - press of a button. A profile is split in settings and buttons. - profile_buttons holds information about button layout. - When read, these files return the respective profile buttons. - The returned data is 19 bytes in size. - This file is readonly. -Users: http://roccat.sourceforge.net - -What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/startup_profile -Date: August 2010 -Contact: Stefan Achatz <erazor_de@users.sourceforge.net> -Description: The integer value of this attribute ranges from 0-4. - When read, this attribute returns the number of the profile - that's active when the mouse is powered on. - This file is readonly. + Before reading this file, control has to be written to select + which profile to read. Users: http://roccat.sourceforge.net What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/settings diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-savu b/Documentation/ABI/testing/sysfs-driver-hid-roccat-savu index b42922cf6b1..f1e02a98bd9 100644 --- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-savu +++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-savu @@ -40,8 +40,8 @@ What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid- Date: Mai 2012 Contact: Stefan Achatz <erazor_de@users.sourceforge.net> Description: When read, this file returns general data like firmware version. + When written, the device can be reset. The data is 8 bytes long. - This file is readonly. Users: http://roccat.sourceforge.net What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/savu/roccatsavu<minor>/macro @@ -74,4 +74,3 @@ Description: The mouse has a Avago ADNS-3090 sensor. This file allows reading and writing of the mouse sensors registers. The data has to be 4 bytes long. Users: http://roccat.sourceforge.net - diff --git a/Documentation/ABI/testing/sysfs-driver-ppi b/Documentation/ABI/testing/sysfs-driver-ppi index 97a003ee058..7d1435bc976 100644 --- a/Documentation/ABI/testing/sysfs-driver-ppi +++ b/Documentation/ABI/testing/sysfs-driver-ppi @@ -5,7 +5,7 @@ Contact: xiaoyan.zhang@intel.com Description: This folder includes the attributes related with PPI (Physical Presence Interface). Only if TPM is supported by BIOS, this - folder makes sence. The folder path can be got by command + folder makes sense. The folder path can be got by command 'find /sys/ -name 'pcrs''. For the detail information of PPI, please refer to the PPI specification from http://www.trustedcomputinggroup.org/ diff --git a/Documentation/ABI/testing/sysfs-profiling b/Documentation/ABI/testing/sysfs-profiling index b02d8b8c173..8a8e466eb2c 100644 --- a/Documentation/ABI/testing/sysfs-profiling +++ b/Documentation/ABI/testing/sysfs-profiling @@ -1,13 +1,13 @@ -What: /sys/kernel/profile +What: /sys/kernel/profiling Date: September 2008 Contact: Dave Hansen <dave@linux.vnet.ibm.com> Description: - /sys/kernel/profile is the runtime equivalent + /sys/kernel/profiling is the runtime equivalent of the boot-time profile= option. You can get the same effect running: - echo 2 > /sys/kernel/profile + echo 2 > /sys/kernel/profiling as you would by issuing profile=2 on the boot command line. diff --git a/Documentation/DocBook/writing-an-alsa-driver.tmpl b/Documentation/DocBook/writing-an-alsa-driver.tmpl index cab4ec58e46..fb32aead5a0 100644 --- a/Documentation/DocBook/writing-an-alsa-driver.tmpl +++ b/Documentation/DocBook/writing-an-alsa-driver.tmpl @@ -433,9 +433,9 @@ /* chip-specific constructor * (see "Management of Cards and Components") */ - static int __devinit snd_mychip_create(struct snd_card *card, - struct pci_dev *pci, - struct mychip **rchip) + static int snd_mychip_create(struct snd_card *card, + struct pci_dev *pci, + struct mychip **rchip) { struct mychip *chip; int err; @@ -475,8 +475,8 @@ } /* constructor -- see "Constructor" sub-section */ - static int __devinit snd_mychip_probe(struct pci_dev *pci, - const struct pci_device_id *pci_id) + static int snd_mychip_probe(struct pci_dev *pci, + const struct pci_device_id *pci_id) { static int dev; struct snd_card *card; @@ -526,7 +526,7 @@ } /* destructor -- see the "Destructor" sub-section */ - static void __devexit snd_mychip_remove(struct pci_dev *pci) + static void snd_mychip_remove(struct pci_dev *pci) { snd_card_free(pci_get_drvdata(pci)); pci_set_drvdata(pci, NULL); @@ -542,9 +542,8 @@ <para> The real constructor of PCI drivers is the <function>probe</function> callback. The <function>probe</function> callback and other component-constructors which are called - from the <function>probe</function> callback should be defined with - the <parameter>__devinit</parameter> prefix. You - cannot use the <parameter>__init</parameter> prefix for them, + from the <function>probe</function> callback cannot be used with + the <parameter>__init</parameter> prefix because any PCI device could be a hotplug device. </para> @@ -728,7 +727,7 @@ <informalexample> <programlisting> <![CDATA[ - static void __devexit snd_mychip_remove(struct pci_dev *pci) + static void snd_mychip_remove(struct pci_dev *pci) { snd_card_free(pci_get_drvdata(pci)); pci_set_drvdata(pci, NULL); @@ -1059,14 +1058,6 @@ </para> <para> - As further notes, the destructors (both - <function>snd_mychip_dev_free</function> and - <function>snd_mychip_free</function>) cannot be defined with - the <parameter>__devexit</parameter> prefix, because they may be - called from the constructor, too, at the false path. - </para> - - <para> For a device which allows hotplugging, you can use <function>snd_card_free_when_closed</function>. This one will postpone the destruction until all devices are closed. @@ -1120,9 +1111,9 @@ } /* chip-specific constructor */ - static int __devinit snd_mychip_create(struct snd_card *card, - struct pci_dev *pci, - struct mychip **rchip) + static int snd_mychip_create(struct snd_card *card, + struct pci_dev *pci, + struct mychip **rchip) { struct mychip *chip; int err; @@ -1200,7 +1191,7 @@ .name = KBUILD_MODNAME, .id_table = snd_mychip_ids, .probe = snd_mychip_probe, - .remove = __devexit_p(snd_mychip_remove), + .remove = snd_mychip_remove, }; /* module initialization */ @@ -1465,11 +1456,6 @@ </para> <para> - Again, remember that you cannot - use the <parameter>__devexit</parameter> prefix for this destructor. - </para> - - <para> We didn't implement the hardware disabling part in the above. If you need to do this, please note that the destructor may be called even before the initialization of the chip is completed. @@ -1619,7 +1605,7 @@ .name = KBUILD_MODNAME, .id_table = snd_mychip_ids, .probe = snd_mychip_probe, - .remove = __devexit_p(snd_mychip_remove), + .remove = snd_mychip_remove, }; ]]> </programlisting> @@ -1630,11 +1616,7 @@ The <structfield>probe</structfield> and <structfield>remove</structfield> functions have already been defined in the previous sections. - The <structfield>remove</structfield> function should - be defined with the - <function>__devexit_p()</function> macro, so that it's not - defined for built-in (and non-hot-pluggable) case. The - <structfield>name</structfield> + The <structfield>name</structfield> field is the name string of this device. Note that you must not use a slash <quote>/</quote> in this string. </para> @@ -1665,9 +1647,7 @@ <para> Note that these module entries are tagged with <parameter>__init</parameter> and - <parameter>__exit</parameter> prefixes, not - <parameter>__devinit</parameter> nor - <parameter>__devexit</parameter>. + <parameter>__exit</parameter> prefixes. </para> <para> @@ -1918,7 +1898,7 @@ */ /* create a pcm device */ - static int __devinit snd_mychip_new_pcm(struct mychip *chip) + static int snd_mychip_new_pcm(struct mychip *chip) { struct snd_pcm *pcm; int err; @@ -1957,7 +1937,7 @@ <informalexample> <programlisting> <![CDATA[ - static int __devinit snd_mychip_new_pcm(struct mychip *chip) + static int snd_mychip_new_pcm(struct mychip *chip) { struct snd_pcm *pcm; int err; @@ -2124,7 +2104,7 @@ .... } - static int __devinit snd_mychip_new_pcm(struct mychip *chip) + static int snd_mychip_new_pcm(struct mychip *chip) { struct snd_pcm *pcm; .... @@ -3399,7 +3379,7 @@ struct _snd_pcm_runtime { <title>Definition of a Control</title> <programlisting> <![CDATA[ - static struct snd_kcontrol_new my_control __devinitdata = { + static struct snd_kcontrol_new my_control = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "PCM Playback Switch", .index = 0, @@ -3415,13 +3395,6 @@ struct _snd_pcm_runtime { </para> <para> - Most likely the control is created via - <function>snd_ctl_new1()</function>, and in such a case, you can - add the <parameter>__devinitdata</parameter> prefix to the - definition as above. - </para> - - <para> The <structfield>iface</structfield> field specifies the control type, <constant>SNDRV_CTL_ELEM_IFACE_XXX</constant>, which is usually <constant>MIXER</constant>. @@ -3847,10 +3820,8 @@ struct _snd_pcm_runtime { <para> <function>snd_ctl_new1()</function> allocates a new - <structname>snd_kcontrol</structname> instance (that's why the definition - of <parameter>my_control</parameter> can be with - the <parameter>__devinitdata</parameter> - prefix), and <function>snd_ctl_add</function> assigns the given + <structname>snd_kcontrol</structname> instance, + and <function>snd_ctl_add</function> assigns the given control component to the card. </para> </section> @@ -3896,7 +3867,7 @@ struct _snd_pcm_runtime { <![CDATA[ static DECLARE_TLV_DB_SCALE(db_scale_my_control, -4050, 150, 0); - static struct snd_kcontrol_new my_control __devinitdata = { + static struct snd_kcontrol_new my_control = { ... .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, @@ -5761,8 +5732,8 @@ struct _snd_pcm_runtime { <informalexample> <programlisting> <![CDATA[ - static int __devinit snd_mychip_probe(struct pci_dev *pci, - const struct pci_device_id *pci_id) + static int snd_mychip_probe(struct pci_dev *pci, + const struct pci_device_id *pci_id) { .... struct snd_card *card; @@ -5787,8 +5758,8 @@ struct _snd_pcm_runtime { <informalexample> <programlisting> <![CDATA[ - static int __devinit snd_mychip_probe(struct pci_dev *pci, - const struct pci_device_id *pci_id) + static int snd_mychip_probe(struct pci_dev *pci, + const struct pci_device_id *pci_id) { .... struct snd_card *card; @@ -5825,7 +5796,7 @@ struct _snd_pcm_runtime { .name = KBUILD_MODNAME, .id_table = snd_my_ids, .probe = snd_my_probe, - .remove = __devexit_p(snd_my_remove), + .remove = snd_my_remove, #ifdef CONFIG_PM .suspend = snd_my_suspend, .resume = snd_my_resume, diff --git a/Documentation/HOWTO b/Documentation/HOWTO index 59c080f084e..a9f288ff54f 100644 --- a/Documentation/HOWTO +++ b/Documentation/HOWTO @@ -462,7 +462,7 @@ Differences between the kernel community and corporate structures The kernel community works differently than most traditional corporate development environments. Here are a list of things that you can try to -do to try to avoid problems: +do to avoid problems: Good things to say regarding your proposed changes: - "This solves multiple problems." - "This deletes 2000 lines of code." diff --git a/Documentation/PCI/pci-iov-howto.txt b/Documentation/PCI/pci-iov-howto.txt index fc73ef5d65b..cfaca7e6989 100644 --- a/Documentation/PCI/pci-iov-howto.txt +++ b/Documentation/PCI/pci-iov-howto.txt @@ -2,6 +2,9 @@ Copyright (C) 2009 Intel Corporation Yu Zhao <yu.zhao@intel.com> + Update: November 2012 + -- sysfs-based SRIOV enable-/disable-ment + Donald Dutile <ddutile@redhat.com> 1. Overview @@ -24,10 +27,21 @@ real existing PCI device. 2.1 How can I enable SR-IOV capability -The device driver (PF driver) will control the enabling and disabling -of the capability via API provided by SR-IOV core. If the hardware -has SR-IOV capability, loading its PF driver would enable it and all -VFs associated with the PF. +Multiple methods are available for SR-IOV enablement. +In the first method, the device driver (PF driver) will control the +enabling and disabling of the capability via API provided by SR-IOV core. +If the hardware has SR-IOV capability, loading its PF driver would +enable it and all VFs associated with the PF. Some PF drivers require +a module parameter to be set to determine the number of VFs to enable. +In the second method, a write to the sysfs file sriov_numvfs will +enable and disable the VFs associated with a PCIe PF. This method +enables per-PF, VF enable/disable values versus the first method, +which applies to all PFs of the same device. Additionally, the +PCI SRIOV core support ensures that enable/disable operations are +valid to reduce duplication in multiple drivers for the same +checks, e.g., check numvfs == 0 if enabling VFs, ensure +numvfs <= totalvfs. +The second method is the recommended method for new/future VF devices. 2.2 How can I use the Virtual Functions @@ -40,13 +54,22 @@ requires device driver that is same as a normal PCI device's. 3.1 SR-IOV API To enable SR-IOV capability: +(a) For the first method, in the driver: int pci_enable_sriov(struct pci_dev *dev, int nr_virtfn); 'nr_virtfn' is number of VFs to be enabled. +(b) For the second method, from sysfs: + echo 'nr_virtfn' > \ + /sys/bus/pci/devices/<DOMAIN:BUS:DEVICE.FUNCTION>/sriov_numvfs To disable SR-IOV capability: +(a) For the first method, in the driver: void pci_disable_sriov(struct pci_dev *dev); +(b) For the second method, from sysfs: + echo 0 > \ + /sys/bus/pci/devices/<DOMAIN:BUS:DEVICE.FUNCTION>/sriov_numvfs To notify SR-IOV core of Virtual Function Migration: +(a) In the driver: irqreturn_t pci_sriov_migration(struct pci_dev *dev); 3.2 Usage example @@ -88,6 +111,22 @@ static void dev_shutdown(struct pci_dev *dev) ... } +static int dev_sriov_configure(struct pci_dev *dev, int numvfs) +{ + if (numvfs > 0) { + ... + pci_enable_sriov(dev, numvfs); + ... + return numvfs; + } + if (numvfs == 0) { + .... + pci_disable_sriov(dev); + ... + return 0; + } +} + static struct pci_driver dev_driver = { .name = "SR-IOV Physical Function driver", .id_table = dev_id_table, @@ -96,4 +135,5 @@ static struct pci_driver dev_driver = { .suspend = dev_suspend, .resume = dev_resume, .shutdown = dev_shutdown, + .sriov_configure = dev_sriov_configure, }; diff --git a/Documentation/accounting/getdelays.c b/Documentation/accounting/getdelays.c index 6f706aca204..f8ebcde43b1 100644 --- a/Documentation/accounting/getdelays.c +++ b/Documentation/accounting/getdelays.c @@ -51,7 +51,6 @@ int dbg; int print_delays; int print_io_accounting; int print_task_context_switch_counts; -__u64 stime, utime; #define PRINTF(fmt, arg...) { \ if (dbg) { \ diff --git a/Documentation/bus-devices/ti-gpmc.txt b/Documentation/bus-devices/ti-gpmc.txt new file mode 100644 index 00000000000..cc9ce57e0a2 --- /dev/null +++ b/Documentation/bus-devices/ti-gpmc.txt @@ -0,0 +1,122 @@ +GPMC (General Purpose Memory Controller): +========================================= + +GPMC is an unified memory controller dedicated to interfacing external +memory devices like + * Asynchronous SRAM like memories and application specific integrated + circuit devices. + * Asynchronous, synchronous, and page mode burst NOR flash devices + NAND flash + * Pseudo-SRAM devices + +GPMC is found on Texas Instruments SoC's (OMAP based) +IP details: http://www.ti.com/lit/pdf/spruh73 section 7.1 + + +GPMC generic timing calculation: +================================ + +GPMC has certain timings that has to be programmed for proper +functioning of the peripheral, while peripheral has another set of +timings. To have peripheral work with gpmc, peripheral timings has to +be translated to the form gpmc can understand. The way it has to be +translated depends on the connected peripheral. Also there is a +dependency for certain gpmc timings on gpmc clock frequency. Hence a +generic timing routine was developed to achieve above requirements. + +Generic routine provides a generic method to calculate gpmc timings +from gpmc peripheral timings. struct gpmc_device_timings fields has to +be updated with timings from the datasheet of the peripheral that is +connected to gpmc. A few of the peripheral timings can be fed either +in time or in cycles, provision to handle this scenario has been +provided (refer struct gpmc_device_timings definition). It may so +happen that timing as specified by peripheral datasheet is not present +in timing structure, in this scenario, try to correlate peripheral +timing to the one available. If that doesn't work, try to add a new +field as required by peripheral, educate generic timing routine to +handle it, make sure that it does not break any of the existing. +Then there may be cases where peripheral datasheet doesn't mention +certain fields of struct gpmc_device_timings, zero those entries. + +Generic timing routine has been verified to work properly on +multiple onenand's and tusb6010 peripherals. + +A word of caution: generic timing routine has been developed based +on understanding of gpmc timings, peripheral timings, available +custom timing routines, a kind of reverse engineering without +most of the datasheets & hardware (to be exact none of those supported +in mainline having custom timing routine) and by simulation. + +gpmc timing dependency on peripheral timings: +[<gpmc_timing>: <peripheral timing1>, <peripheral timing2> ...] + +1. common +cs_on: t_ceasu +adv_on: t_avdasu, t_ceavd + +2. sync common +sync_clk: clk +page_burst_access: t_bacc +clk_activation: t_ces, t_avds + +3. read async muxed +adv_rd_off: t_avdp_r +oe_on: t_oeasu, t_aavdh +access: t_iaa, t_oe, t_ce, t_aa +rd_cycle: t_rd_cycle, t_cez_r, t_oez + +4. read async non-muxed +adv_rd_off: t_avdp_r +oe_on: t_oeasu +access: t_iaa, t_oe, t_ce, t_aa +rd_cycle: t_rd_cycle, t_cez_r, t_oez + +5. read sync muxed +adv_rd_off: t_avdp_r, t_avdh +oe_on: t_oeasu, t_ach, cyc_aavdh_oe +access: t_iaa, cyc_iaa, cyc_oe +rd_cycle: t_cez_r, t_oez, t_ce_rdyz + +6. read sync non-muxed +adv_rd_off: t_avdp_r +oe_on: t_oeasu +access: t_iaa, cyc_iaa, cyc_oe +rd_cycle: t_cez_r, t_oez, t_ce_rdyz + +7. write async muxed +adv_wr_off: t_avdp_w +we_on, wr_data_mux_bus: t_weasu, t_aavdh, cyc_aavhd_we +we_off: t_wpl +cs_wr_off: t_wph +wr_cycle: t_cez_w, t_wr_cycle + +8. write async non-muxed +adv_wr_off: t_avdp_w +we_on, wr_data_mux_bus: t_weasu +we_off: t_wpl +cs_wr_off: t_wph +wr_cycle: t_cez_w, t_wr_cycle + +9. write sync muxed +adv_wr_off: t_avdp_w, t_avdh +we_on, wr_data_mux_bus: t_weasu, t_rdyo, t_aavdh, cyc_aavhd_we +we_off: t_wpl, cyc_wpl +cs_wr_off: t_wph +wr_cycle: t_cez_w, t_ce_rdyz + +10. write sync non-muxed +adv_wr_off: t_avdp_w +we_on, wr_data_mux_bus: t_weasu, t_rdyo +we_off: t_wpl, cyc_wpl +cs_wr_off: t_wph +wr_cycle: t_cez_w, t_ce_rdyz + + +Note: Many of gpmc timings are dependent on other gpmc timings (a few +gpmc timings purely dependent on other gpmc timings, a reason that +some of the gpmc timings are missing above), and it will result in +indirect dependency of peripheral timings to gpmc timings other than +mentioned above, refer timing routine for more details. To know what +these peripheral timings correspond to, please see explanations in +struct gpmc_device_timings definition. And for gpmc timings refer +IP details (link above). diff --git a/Documentation/devicetree/bindings/arm/exynos/power_domain.txt b/Documentation/devicetree/bindings/arm/exynos/power_domain.txt index 6528e215c5f..5216b419016 100644 --- a/Documentation/devicetree/bindings/arm/exynos/power_domain.txt +++ b/Documentation/devicetree/bindings/arm/exynos/power_domain.txt @@ -4,14 +4,13 @@ Exynos processors include support for multiple power domains which are used to gate power to one or more peripherals on the processor. Required Properties: -- compatiable: should be one of the following. +- compatible: should be one of the following. * samsung,exynos4210-pd - for exynos4210 type power domain. - reg: physical base address of the controller and length of memory mapped region. -Optional Properties: -- samsung,exynos4210-pd-off: Specifies that the power domain is in turned-off - state during boot and remains to be turned-off until explicitly turned-on. +Node of a device using power domains must have a samsung,power-domain property +defined with a phandle to respective power domain. Example: @@ -19,3 +18,11 @@ Example: compatible = "samsung,exynos4210-pd"; reg = <0x10023C00 0x10>; }; + +Example of the node using power domain: + + node { + /* ... */ + samsung,power-domain = <&lcd0>; + /* ... */ + }; diff --git a/Documentation/devicetree/bindings/arm/fsl.txt b/Documentation/devicetree/bindings/arm/fsl.txt index ac9e7516756..f79818711e8 100644 --- a/Documentation/devicetree/bindings/arm/fsl.txt +++ b/Documentation/devicetree/bindings/arm/fsl.txt @@ -41,6 +41,10 @@ i.MX6 Quad SABRE Smart Device Board Required root node properties: - compatible = "fsl,imx6q-sabresd", "fsl,imx6q"; +i.MX6 Quad SABRE Automotive Board +Required root node properties: + - compatible = "fsl,imx6q-sabreauto", "fsl,imx6q"; + Generic i.MX boards ------------------- diff --git a/Documentation/devicetree/bindings/ata/exynos-sata-phy.txt b/Documentation/devicetree/bindings/ata/exynos-sata-phy.txt new file mode 100644 index 00000000000..37824fac688 --- /dev/null +++ b/Documentation/devicetree/bindings/ata/exynos-sata-phy.txt @@ -0,0 +1,14 @@ +* Samsung SATA PHY Controller + +SATA PHY nodes are defined to describe on-chip SATA Physical layer controllers. +Each SATA PHY controller should have its own node. + +Required properties: +- compatible : compatible list, contains "samsung,exynos5-sata-phy" +- reg : <registers mapping> + +Example: + sata@ffe07000 { + compatible = "samsung,exynos5-sata-phy"; + reg = <0xffe07000 0x1000>; + }; diff --git a/Documentation/devicetree/bindings/ata/exynos-sata.txt b/Documentation/devicetree/bindings/ata/exynos-sata.txt new file mode 100644 index 00000000000..0849f1025e3 --- /dev/null +++ b/Documentation/devicetree/bindings/ata/exynos-sata.txt @@ -0,0 +1,17 @@ +* Samsung AHCI SATA Controller + +SATA nodes are defined to describe on-chip Serial ATA controllers. +Each SATA controller should have its own node. + +Required properties: +- compatible : compatible list, contains "samsung,exynos5-sata" +- interrupts : <interrupt mapping for SATA IRQ> +- reg : <registers mapping> +- samsung,sata-freq : <frequency in MHz> + +Example: + sata@ffe08000 { + compatible = "samsung,exynos5-sata"; + reg = <0xffe08000 0x1000>; + interrupts = <115>; + }; diff --git a/Documentation/devicetree/bindings/clock/imx25-clock.txt b/Documentation/devicetree/bindings/clock/imx25-clock.txt new file mode 100644 index 00000000000..c2a3525ecb4 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/imx25-clock.txt @@ -0,0 +1,162 @@ +* Clock bindings for Freescale i.MX25 + +Required properties: +- compatible: Should be "fsl,imx25-ccm" +- reg: Address and length of the register set +- interrupts: Should contain CCM interrupt +- #clock-cells: Should be <1> + +The clock consumer should specify the desired clock by having the clock +ID in its "clocks" phandle cell. The following is a full list of i.MX25 +clocks and IDs. + + Clock ID + --------------------------- + dummy 0 + osc 1 + mpll 2 + upll 3 + mpll_cpu_3_4 4 + cpu_sel 5 + cpu 6 + ahb 7 + usb_div 8 + ipg 9 + per0_sel 10 + per1_sel 11 + per2_sel 12 + per3_sel 13 + per4_sel 14 + per5_sel 15 + per6_sel 16 + per7_sel 17 + per8_sel 18 + per9_sel 19 + per10_sel 20 + per11_sel 21 + per12_sel 22 + per13_sel 23 + per14_sel 24 + per15_sel 25 + per0 26 + per1 27 + per2 28 + per3 29 + per4 30 + per5 31 + per6 32 + per7 33 + per8 34 + per9 35 + per10 36 + per11 37 + per12 38 + per13 39 + per14 40 + per15 41 + csi_ipg_per 42 + epit_ipg_per 43 + esai_ipg_per 44 + esdhc1_ipg_per 45 + esdhc2_ipg_per 46 + gpt_ipg_per 47 + i2c_ipg_per 48 + lcdc_ipg_per 49 + nfc_ipg_per 50 + owire_ipg_per 51 + pwm_ipg_per 52 + sim1_ipg_per 53 + sim2_ipg_per 54 + ssi1_ipg_per 55 + ssi2_ipg_per 56 + uart_ipg_per 57 + ata_ahb 58 + reserved 59 + csi_ahb 60 + emi_ahb 61 + esai_ahb 62 + esdhc1_ahb 63 + esdhc2_ahb 64 + fec_ahb 65 + lcdc_ahb 66 + rtic_ahb 67 + sdma_ahb 68 + slcdc_ahb 69 + usbotg_ahb 70 + reserved 71 + reserved 72 + reserved 73 + reserved 74 + can1_ipg 75 + can2_ipg 76 + csi_ipg 77 + cspi1_ipg 78 + cspi2_ipg 79 + cspi3_ipg 80 + dryice_ipg 81 + ect_ipg 82 + epit1_ipg 83 + epit2_ipg 84 + reserved 85 + esdhc1_ipg 86 + esdhc2_ipg 87 + fec_ipg 88 + reserved 89 + reserved 90 + reserved 91 + gpt1_ipg 92 + gpt2_ipg 93 + gpt3_ipg 94 + gpt4_ipg 95 + reserved 96 + reserved 97 + reserved 98 + iim_ipg 99 + reserved 100 + reserved 101 + kpp_ipg 102 + lcdc_ipg 103 + reserved 104 + pwm1_ipg 105 + pwm2_ipg 106 + pwm3_ipg 107 + pwm4_ipg 108 + rngb_ipg 109 + reserved 110 + scc_ipg 111 + sdma_ipg 112 + sim1_ipg 113 + sim2_ipg 114 + slcdc_ipg 115 + spba_ipg 116 + ssi1_ipg 117 + ssi2_ipg 118 + tsc_ipg 119 + uart1_ipg 120 + uart2_ipg 121 + uart3_ipg 122 + uart4_ipg 123 + uart5_ipg 124 + reserved 125 + wdt_ipg 126 + +Examples: + +clks: ccm@53f80000 { + compatible = "fsl,imx25-ccm"; + reg = <0x53f80000 0x4000>; + interrupts = <31>; + clock-output-names = ... + "uart_ipg", + "uart_serial", + ...; +}; + +uart1: serial@43f90000 { + compatible = "fsl,imx25-uart", "fsl,imx21-uart"; + reg = <0x43f90000 0x4000>; + interrupts = <45>; + clocks = <&clks 79>, <&clks 50>; + clock-names = "ipg", "per"; + status = "disabled"; +}; diff --git a/Documentation/devicetree/bindings/clock/zynq-7000.txt b/Documentation/devicetree/bindings/clock/zynq-7000.txt new file mode 100644 index 00000000000..23ae1db1bc1 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/zynq-7000.txt @@ -0,0 +1,55 @@ +Device Tree Clock bindings for the Zynq 7000 EPP + +The Zynq EPP has several different clk providers, each with there own bindings. +The purpose of this document is to document their usage. + +See clock_bindings.txt for more information on the generic clock bindings. +See Chapter 25 of Zynq TRM for more information about Zynq clocks. + +== PLLs == + +Used to describe the ARM_PLL, DDR_PLL, and IO_PLL. + +Required properties: +- #clock-cells : shall be 0 (only one clock is output from this node) +- compatible : "xlnx,zynq-pll" +- reg : pair of u32 values, which are the address offsets within the SLCR + of the relevant PLL_CTRL register and PLL_CFG register respectively +- clocks : phandle for parent clock. should be the phandle for ps_clk + +Optional properties: +- clock-output-names : name of the output clock + +Example: + armpll: armpll { + #clock-cells = <0>; + compatible = "xlnx,zynq-pll"; + clocks = <&ps_clk>; + reg = <0x100 0x110>; + clock-output-names = "armpll"; + }; + +== Peripheral clocks == + +Describes clock node for the SDIO, SMC, SPI, QSPI, and UART clocks. + +Required properties: +- #clock-cells : shall be 1 +- compatible : "xlnx,zynq-periph-clock" +- reg : a single u32 value, describing the offset within the SLCR where + the CLK_CTRL register is found for this peripheral +- clocks : phandle for parent clocks. should hold phandles for + the IO_PLL, ARM_PLL, and DDR_PLL in order +- clock-output-names : names of the output clock(s). For peripherals that have + two output clocks (for example, the UART), two clocks + should be listed. + +Example: + uart_clk: uart_clk { + #clock-cells = <1>; + compatible = "xlnx,zynq-periph-clock"; + clocks = <&iopll &armpll &ddrpll>; + reg = <0x154>; + clock-output-names = "uart0_ref_clk", + "uart1_ref_clk"; + }; diff --git a/Documentation/devicetree/bindings/drm/exynos/hdmi.txt b/Documentation/devicetree/bindings/drm/exynos/hdmi.txt new file mode 100644 index 00000000000..589edee3739 --- /dev/null +++ b/Documentation/devicetree/bindings/drm/exynos/hdmi.txt @@ -0,0 +1,22 @@ +Device-Tree bindings for drm hdmi driver + +Required properties: +- compatible: value should be "samsung,exynos5-hdmi". +- reg: physical base address of the hdmi and length of memory mapped + region. +- interrupts: interrupt number to the cpu. +- hpd-gpio: following information about the hotplug gpio pin. + a) phandle of the gpio controller node. + b) pin number within the gpio controller. + c) pin function mode. + d) optional flags and pull up/down. + e) drive strength. + +Example: + + hdmi { + compatible = "samsung,exynos5-hdmi"; + reg = <0x14530000 0x100000>; + interrupts = <0 95 0>; + hpd-gpio = <&gpx3 7 0xf 1 3>; + }; diff --git a/Documentation/devicetree/bindings/drm/exynos/hdmiddc.txt b/Documentation/devicetree/bindings/drm/exynos/hdmiddc.txt new file mode 100644 index 00000000000..fa166d94580 --- /dev/null +++ b/Documentation/devicetree/bindings/drm/exynos/hdmiddc.txt @@ -0,0 +1,12 @@ +Device-Tree bindings for hdmiddc driver + +Required properties: +- compatible: value should be "samsung,exynos5-hdmiddc". +- reg: I2C address of the hdmiddc device. + +Example: + + hdmiddc { + compatible = "samsung,exynos5-hdmiddc"; + reg = <0x50>; + }; diff --git a/Documentation/devicetree/bindings/drm/exynos/hdmiphy.txt b/Documentation/devicetree/bindings/drm/exynos/hdmiphy.txt new file mode 100644 index 00000000000..858f4f9b902 --- /dev/null +++ b/Documentation/devicetree/bindings/drm/exynos/hdmiphy.txt @@ -0,0 +1,12 @@ +Device-Tree bindings for hdmiphy driver + +Required properties: +- compatible: value should be "samsung,exynos5-hdmiphy". +- reg: I2C address of the hdmiphy device. + +Example: + + hdmiphy { + compatible = "samsung,exynos5-hdmiphy"; + reg = <0x38>; + }; diff --git a/Documentation/devicetree/bindings/drm/exynos/mixer.txt b/Documentation/devicetree/bindings/drm/exynos/mixer.txt new file mode 100644 index 00000000000..9b2ea034356 --- /dev/null +++ b/Documentation/devicetree/bindings/drm/exynos/mixer.txt @@ -0,0 +1,15 @@ +Device-Tree bindings for mixer driver + +Required properties: +- compatible: value should be "samsung,exynos5-mixer". +- reg: physical base address of the mixer and length of memory mapped + region. +- interrupts: interrupt number to the cpu. + +Example: + + mixer { + compatible = "samsung,exynos5-mixer"; + reg = <0x14450000 0x10000>; + interrupts = <0 94 0>; + }; diff --git a/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt b/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt new file mode 100644 index 00000000000..558cdf3c9ab --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt @@ -0,0 +1,22 @@ +GPIO line that should be set high/low to power off a device + +Required properties: +- compatible : should be "gpio-poweroff". +- gpios : The GPIO to set high/low, see "gpios property" in + Documentation/devicetree/bindings/gpio/gpio.txt. If the pin should be + low to power down the board set it to "Active Low", otherwise set + gpio to "Active High". + +Optional properties: +- input : Initially configure the GPIO line as an input. Only reconfigure + it to an output when the pm_power_off function is called. If this optional + property is not specified, the GPIO is initialized as an output in its + inactive state. + + +Examples: + +gpio-poweroff { + compatible = "gpio-poweroff"; + gpios = <&gpio 4 0>; /* GPIO 4 Active Low */ +}; diff --git a/Documentation/devicetree/bindings/hwmon/vexpress.txt b/Documentation/devicetree/bindings/hwmon/vexpress.txt new file mode 100644 index 00000000000..9c27ed694bb --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/vexpress.txt @@ -0,0 +1,23 @@ +Versatile Express hwmon sensors +------------------------------- + +Requires node properties: +- "compatible" value : one of + "arm,vexpress-volt" + "arm,vexpress-amp" + "arm,vexpress-temp" + "arm,vexpress-power" + "arm,vexpress-energy" +- "arm,vexpress-sysreg,func" when controlled via vexpress-sysreg + (see Documentation/devicetree/bindings/arm/vexpress-sysreg.txt + for more details) + +Optional node properties: +- label : string describing the monitored value + +Example: + energy@0 { + compatible = "arm,vexpress-energy"; + arm,vexpress-sysreg,func = <13 0>; + label = "A15 Jcore"; + }; diff --git a/Documentation/devicetree/bindings/input/touchscreen/bu21013.txt b/Documentation/devicetree/bindings/input/touchscreen/bu21013.txt new file mode 100644 index 00000000000..ca5a2c86480 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/bu21013.txt @@ -0,0 +1,28 @@ +* Rohm BU21013 Touch Screen + +Required properties: + - compatible : "rohm,bu21013_tp" + - reg : I2C device address + +Optional properties: + - touch-gpio : GPIO pin registering a touch event + - <supply_name>-supply : Phandle to a regulator supply + - rohm,touch-max-x : Maximum outward permitted limit in the X axis + - rohm,touch-max-y : Maximum outward permitted limit in the Y axis + - rohm,flip-x : Flip touch coordinates on the X axis + - rohm,flip-y : Flip touch coordinates on the Y axis + +Example: + + i2c@80110000 { + bu21013_tp@0x5c { + compatible = "rohm,bu21013_tp"; + reg = <0x5c>; + touch-gpio = <&gpio2 20 0x4>; + avdd-supply = <&ab8500_ldo_aux1_reg>; + + rohm,touch-max-x = <384>; + rohm,touch-max-y = <704>; + rohm,flip-y; + }; + }; diff --git a/Documentation/devicetree/bindings/media/s5p-mfc.txt b/Documentation/devicetree/bindings/media/s5p-mfc.txt new file mode 100644 index 00000000000..67ec3d4ccc7 --- /dev/null +++ b/Documentation/devicetree/bindings/media/s5p-mfc.txt @@ -0,0 +1,23 @@ +* Samsung Multi Format Codec (MFC) + +Multi Format Codec (MFC) is the IP present in Samsung SoCs which +supports high resolution decoding and encoding functionalities. +The MFC device driver is a v4l2 driver which can encode/decode +video raw/elementary streams and has support for all popular +video codecs. + +Required properties: + - compatible : value should be either one among the following + (a) "samsung,mfc-v5" for MFC v5 present in Exynos4 SoCs + (b) "samsung,mfc-v6" for MFC v6 present in Exynos5 SoCs + + - reg : Physical base address of the IP registers and length of memory + mapped region. + + - interrupts : MFC interrupt number to the CPU. + + - samsung,mfc-r : Base address of the first memory bank used by MFC + for DMA contiguous memory allocation and its size. + + - samsung,mfc-l : Base address of the second memory bank used by MFC + for DMA contiguous memory allocation and its size. diff --git a/Documentation/devicetree/bindings/misc/atmel-ssc.txt b/Documentation/devicetree/bindings/misc/atmel-ssc.txt new file mode 100644 index 00000000000..38e51ad2e07 --- /dev/null +++ b/Documentation/devicetree/bindings/misc/atmel-ssc.txt @@ -0,0 +1,15 @@ +* Atmel SSC driver. + +Required properties: +- compatible: "atmel,at91rm9200-ssc" or "atmel,at91sam9g45-ssc" + - atmel,at91rm9200-ssc: support pdc transfer + - atmel,at91sam9g45-ssc: support dma transfer +- reg: Should contain SSC registers location and length +- interrupts: Should contain SSC interrupt + +Example: +ssc0: ssc@fffbc000 { + compatible = "atmel,at91rm9200-ssc"; + reg = <0xfffbc000 0x4000>; + interrupts = <14 4 5>; +}; diff --git a/Documentation/devicetree/bindings/net/can/grcan.txt b/Documentation/devicetree/bindings/net/can/grcan.txt new file mode 100644 index 00000000000..34ef3498f88 --- /dev/null +++ b/Documentation/devicetree/bindings/net/can/grcan.txt @@ -0,0 +1,28 @@ +Aeroflex Gaisler GRCAN and GRHCAN CAN controllers. + +The GRCAN and CRHCAN CAN controllers are available in the GRLIB VHDL IP core +library. + +Note: These properties are built from the AMBA plug&play in a Leon SPARC system +(the ordinary environment for GRCAN and GRHCAN). There are no dts files for +sparc. + +Required properties: + +- name : Should be "GAISLER_GRCAN", "01_03d", "GAISLER_GRHCAN" or "01_034" + +- reg : Address and length of the register set for the device + +- freq : Frequency of the external oscillator clock in Hz (the frequency of + the amba bus in the ordinary case) + +- interrupts : Interrupt number for this device + +Optional properties: + +- systemid : If not present or if the value of the least significant 16 bits + of this 32-bit property is smaller than GRCAN_TXBUG_SAFE_GRLIB_VERSION + a bug workaround is activated. + +For further information look in the documentation for the GLIB IP core library: +http://www.gaisler.com/products/grlib/grip.pdf diff --git a/Documentation/devicetree/bindings/net/cdns-emac.txt b/Documentation/devicetree/bindings/net/cdns-emac.txt new file mode 100644 index 00000000000..09055c2495f --- /dev/null +++ b/Documentation/devicetree/bindings/net/cdns-emac.txt @@ -0,0 +1,23 @@ +* Cadence EMAC Ethernet controller + +Required properties: +- compatible: Should be "cdns,[<chip>-]{emac}" + Use "cdns,at91rm9200-emac" Atmel at91rm9200 SoC. + or the generic form: "cdns,emac". +- reg: Address and length of the register set for the device +- interrupts: Should contain macb interrupt +- phy-mode: String, operation mode of the PHY interface. + Supported values are: "mii", "rmii". + +Optional properties: +- local-mac-address: 6 bytes, mac address + +Examples: + + macb0: ethernet@fffc4000 { + compatible = "cdns,at91rm9200-emac"; + reg = <0xfffc4000 0x4000>; + interrupts = <21>; + phy-mode = "rmii"; + local-mac-address = [3a 0e 03 04 05 06]; + }; diff --git a/Documentation/devicetree/bindings/net/cpsw.txt b/Documentation/devicetree/bindings/net/cpsw.txt index dcaabe9fe86..6ddd0286a9b 100644 --- a/Documentation/devicetree/bindings/net/cpsw.txt +++ b/Documentation/devicetree/bindings/net/cpsw.txt @@ -9,21 +9,15 @@ Required properties: number - interrupt-parent : The parent interrupt controller - cpdma_channels : Specifies number of channels in CPDMA -- host_port_no : Specifies host port shift -- cpdma_reg_ofs : Specifies CPDMA submodule register offset -- cpdma_sram_ofs : Specifies CPDMA SRAM offset -- ale_reg_ofs : Specifies ALE submodule register offset - ale_entries : Specifies No of entries ALE can hold -- host_port_reg_ofs : Specifies host port register offset -- hw_stats_reg_ofs : Specifies hardware statistics register offset -- bd_ram_ofs : Specifies internal desciptor RAM offset - bd_ram_size : Specifies internal descriptor RAM size - rx_descs : Specifies number of Rx descriptors - mac_control : Specifies Default MAC control register content for the specific platform - slaves : Specifies number for slaves -- slave_reg_ofs : Specifies slave register offset -- sliver_reg_ofs : Specifies slave sliver register offset +- cpts_active_slave : Specifies the slave to use for time stamping +- cpts_clock_mult : Numerator to convert input clock ticks into nanoseconds +- cpts_clock_shift : Denominator to convert input clock ticks into nanoseconds - phy_id : Specifies slave phy id - mac-address : Specifies slave MAC address @@ -45,30 +39,22 @@ Examples: interrupts = <55 0x4>; interrupt-parent = <&intc>; cpdma_channels = <8>; - host_port_no = <0>; - cpdma_reg_ofs = <0x800>; - cpdma_sram_ofs = <0xa00>; - ale_reg_ofs = <0xd00>; ale_entries = <1024>; - host_port_reg_ofs = <0x108>; - hw_stats_reg_ofs = <0x900>; - bd_ram_ofs = <0x2000>; bd_ram_size = <0x2000>; no_bd_ram = <0>; rx_descs = <64>; mac_control = <0x20>; slaves = <2>; + cpts_active_slave = <0>; + cpts_clock_mult = <0x80000000>; + cpts_clock_shift = <29>; cpsw_emac0: slave@0 { - slave_reg_ofs = <0x208>; - sliver_reg_ofs = <0xd80>; - phy_id = "davinci_mdio.16:00"; + phy_id = <&davinci_mdio>, <0>; /* Filled in by U-Boot */ mac-address = [ 00 00 00 00 00 00 ]; }; cpsw_emac1: slave@1 { - slave_reg_ofs = <0x308>; - sliver_reg_ofs = <0xdc0>; - phy_id = "davinci_mdio.16:01"; + phy_id = <&davinci_mdio>, <1>; /* Filled in by U-Boot */ mac-address = [ 00 00 00 00 00 00 ]; }; @@ -79,30 +65,22 @@ Examples: compatible = "ti,cpsw"; ti,hwmods = "cpgmac0"; cpdma_channels = <8>; - host_port_no = <0>; - cpdma_reg_ofs = <0x800>; - cpdma_sram_ofs = <0xa00>; - ale_reg_ofs = <0xd00>; ale_entries = <1024>; - host_port_reg_ofs = <0x108>; - hw_stats_reg_ofs = <0x900>; - bd_ram_ofs = <0x2000>; bd_ram_size = <0x2000>; no_bd_ram = <0>; rx_descs = <64>; mac_control = <0x20>; slaves = <2>; + cpts_active_slave = <0>; + cpts_clock_mult = <0x80000000>; + cpts_clock_shift = <29>; cpsw_emac0: slave@0 { - slave_reg_ofs = <0x208>; - sliver_reg_ofs = <0xd80>; - phy_id = "davinci_mdio.16:00"; + phy_id = <&davinci_mdio>, <0>; /* Filled in by U-Boot */ mac-address = [ 00 00 00 00 00 00 ]; }; cpsw_emac1: slave@1 { - slave_reg_ofs = <0x308>; - sliver_reg_ofs = <0xdc0>; - phy_id = "davinci_mdio.16:01"; + phy_id = <&davinci_mdio>, <1>; /* Filled in by U-Boot */ mac-address = [ 00 00 00 00 00 00 ]; }; diff --git a/Documentation/devicetree/bindings/pinctrl/marvell,kirkwood-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/marvell,kirkwood-pinctrl.txt index 361bccb7ec8..95daf6335c3 100644 --- a/Documentation/devicetree/bindings/pinctrl/marvell,kirkwood-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/marvell,kirkwood-pinctrl.txt @@ -7,8 +7,10 @@ Required properties: - compatible: "marvell,88f6180-pinctrl", "marvell,88f6190-pinctrl", "marvell,88f6192-pinctrl", "marvell,88f6281-pinctrl", "marvell,88f6282-pinctrl" + "marvell,98dx4122-pinctrl" This driver supports all kirkwood variants, i.e. 88f6180, 88f619x, and 88f628x. +It also support the 88f6281-based variant in the 98dx412x Bobcat SoCs. Available mpp pins/groups and functions: Note: brackets (x) are not part of the mpp name for marvell,function and given @@ -277,3 +279,40 @@ mpp46 46 gpio, ts(mp10), tdm(fs), lcd(hsync) mpp47 47 gpio, ts(mp11), tdm(drx), lcd(vsync) mpp48 48 gpio, ts(mp12), tdm(dtx), lcd(d16) mpp49 49 gpo, tdm(rx0ql), pex(clkreq), lcd(d17) + +* Marvell Bobcat 98dx4122 + +name pins functions +================================================================================ +mpp0 0 gpio, nand(io2), spi(cs) +mpp1 1 gpo, nand(io3), spi(mosi) +mpp2 2 gpo, nand(io4), spi(sck) +mpp3 3 gpo, nand(io5), spi(miso) +mpp4 4 gpio, nand(io6), uart0(rxd) +mpp5 5 gpo, nand(io7), uart0(txd) +mpp6 6 sysrst(out), spi(mosi) +mpp7 7 gpo, pex(rsto), spi(cs) +mpp8 8 gpio, twsi0(sda), uart0(rts), uart1(rts) +mpp9 9 gpio, twsi(sck), uart0(cts), uart1(cts) +mpp10 10 gpo, spi(sck), uart0(txd) +mpp11 11 gpio, spi(miso), uart0(rxd) +mpp13 13 gpio, uart1(txd) +mpp14 14 gpio, uart1(rxd) +mpp15 15 gpio, uart0(rts) +mpp16 16 gpio, uart0(cts) +mpp18 18 gpo, nand(io0) +mpp19 19 gpo, nand(io1) +mpp34 34 gpio +mpp35 35 gpio +mpp36 36 gpio +mpp37 37 gpio +mpp38 38 gpio +mpp39 39 gpio +mpp40 40 gpio +mpp41 41 gpio +mpp42 42 gpio +mpp43 43 gpio +mpp44 44 gpio +mpp45 45 gpio +mpp49 49 gpio + diff --git a/Documentation/devicetree/bindings/regulator/gpio-regulator.txt b/Documentation/devicetree/bindings/regulator/gpio-regulator.txt new file mode 100644 index 00000000000..63c659800c0 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/gpio-regulator.txt @@ -0,0 +1,37 @@ +GPIO controlled regulators + +Required properties: +- compatible : Must be "regulator-gpio". +- states : Selection of available voltages and GPIO configs. + if there are no states, then use a fixed regulator + +Optional properties: +- enable-gpio : GPIO to use to enable/disable the regulator. +- gpios : GPIO group used to control voltage. +- startup-delay-us : Startup time in microseconds. +- enable-active-high : Polarity of GPIO is active high (default is low). + +Any property defined as part of the core regulator binding defined in +regulator.txt can also be used. + +Example: + + mmciv: gpio-regulator { + compatible = "regulator-gpio"; + + regulator-name = "mmci-gpio-supply"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <2600000>; + regulator-boot-on; + + enable-gpio = <&gpio0 23 0x4>; + gpios = <&gpio0 24 0x4 + &gpio0 25 0x4>; + states = <1800000 0x3 + 2200000 0x2 + 2600000 0x1 + 2900000 0x0>; + + startup-delay-us = <100000>; + enable-active-high; + }; diff --git a/Documentation/devicetree/bindings/regulator/max8925-regulator.txt b/Documentation/devicetree/bindings/regulator/max8925-regulator.txt new file mode 100644 index 00000000000..0057695aae8 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/max8925-regulator.txt @@ -0,0 +1,40 @@ +Max8925 Voltage regulators + +Required nodes: +-nodes: + - SDV1 for SDV SDV1 + - SDV2 for SDV SDV2 + - SDV3 for SDV SDV3 + - LDO1 for LDO LDO1 + - LDO2 for LDO LDO2 + - LDO3 for LDO LDO3 + - LDO4 for LDO LDO4 + - LDO5 for LDO LDO5 + - LDO6 for LDO LDO6 + - LDO7 for LDO LDO7 + - LDO8 for LDO LDO8 + - LDO9 for LDO LDO9 + - LDO10 for LDO LDO10 + - LDO11 for LDO LDO11 + - LDO12 for LDO LDO12 + - LDO13 for LDO LDO13 + - LDO14 for LDO LDO14 + - LDO15 for LDO LDO15 + - LDO16 for LDO LDO16 + - LDO17 for LDO LDO17 + - LDO18 for LDO LDO18 + - LDO19 for LDO LDO19 + - LDO20 for LDO LDO20 + +Optional properties: +- Any optional property defined in bindings/regulator/regulator.txt + +Example: + + SDV1 { + regulator-min-microvolt = <637500>; + regulator-max-microvolt = <1425000>; + regulator-boot-on; + regulator-always-on; + }; + diff --git a/Documentation/devicetree/bindings/regulator/max8997-regulator.txt b/Documentation/devicetree/bindings/regulator/max8997-regulator.txt new file mode 100644 index 00000000000..9fd69a18b0b --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/max8997-regulator.txt @@ -0,0 +1,146 @@ +* Maxim MAX8997 Voltage and Current Regulator + +The Maxim MAX8997 is a multi-function device which includes volatage and +current regulators, rtc, charger controller and other sub-blocks. It is +interfaced to the host controller using a i2c interface. Each sub-block is +addressed by the host system using different i2c slave address. This document +describes the bindings for 'pmic' sub-block of max8997. + +Required properties: +- compatible: Should be "maxim,max8997-pmic". +- reg: Specifies the i2c slave address of the pmic block. It should be 0x66. + +- max8997,pmic-buck1-dvs-voltage: A set of 8 voltage values in micro-volt (uV) + units for buck1 when changing voltage using gpio dvs. Refer to [1] below + for additional information. + +- max8997,pmic-buck2-dvs-voltage: A set of 8 voltage values in micro-volt (uV) + units for buck2 when changing voltage using gpio dvs. Refer to [1] below + for additional information. + +- max8997,pmic-buck5-dvs-voltage: A set of 8 voltage values in micro-volt (uV) + units for buck5 when changing voltage using gpio dvs. Refer to [1] below + for additional information. + +[1] If none of the 'max8997,pmic-buck[1/2/5]-uses-gpio-dvs' optional + property is specified, the 'max8997,pmic-buck[1/2/5]-dvs-voltage' + property should specify atleast one voltage level (which would be a + safe operating voltage). + + If either of the 'max8997,pmic-buck[1/2/5]-uses-gpio-dvs' optional + property is specified, then all the eigth voltage values for the + 'max8997,pmic-buck[1/2/5]-dvs-voltage' should be specified. + +Optional properties: +- interrupt-parent: Specifies the phandle of the interrupt controller to which + the interrupts from max8997 are delivered to. +- interrupts: Interrupt specifiers for two interrupt sources. + - First interrupt specifier is for 'irq1' interrupt. + - Second interrupt specifier is for 'alert' interrupt. +- max8997,pmic-buck1-uses-gpio-dvs: 'buck1' can be controlled by gpio dvs. +- max8997,pmic-buck2-uses-gpio-dvs: 'buck2' can be controlled by gpio dvs. +- max8997,pmic-buck5-uses-gpio-dvs: 'buck5' can be controlled by gpio dvs. + +Additional properties required if either of the optional properties are used: +- max8997,pmic-ignore-gpiodvs-side-effect: When GPIO-DVS mode is used for + multiple bucks, changing the voltage value of one of the bucks may affect + that of another buck, which is the side effect of the change (set_voltage). + Use this property to ignore such side effects and change the voltage. + +- max8997,pmic-buck125-default-dvs-idx: Default voltage setting selected from + the possible 8 options selectable by the dvs gpios. The value of this + property should be between 0 and 7. If not specified or if out of range, the + default value of this property is set to 0. + +- max8997,pmic-buck125-dvs-gpios: GPIO specifiers for three host gpio's used + for dvs. The format of the gpio specifier depends in the gpio controller. + +Regulators: The regulators of max8997 that have to be instantiated should be +included in a sub-node named 'regulators'. Regulator nodes included in this +sub-node should be of the format as listed below. + + regulator_name { + standard regulator bindings here + }; + +The following are the names of the regulators that the max8997 pmic block +supports. Note: The 'n' in LDOn and BUCKn represents the LDO or BUCK number +as per the datasheet of max8997. + + - LDOn + - valid values for n are 1 to 18 and 21 + - Example: LDO0, LD01, LDO2, LDO21 + - BUCKn + - valid values for n are 1 to 7. + - Example: BUCK1, BUCK2, BUCK3, BUCK7 + + - ENVICHG: Battery Charging Current Monitor Output. This is a fixed + voltage type regulator + + - ESAFEOUT1: (ldo19) + - ESAFEOUT2: (ld020) + + - CHARGER_CV: main battery charger voltage control + - CHARGER: main battery charger current control + - CHARGER_TOPOFF: end of charge current threshold level + +The bindings inside the regulator nodes use the standard regulator bindings +which are documented elsewhere. + +Example: + + max8997_pmic@66 { + compatible = "maxim,max8997-pmic"; + interrupt-parent = <&wakeup_eint>; + reg = <0x66>; + interrupts = <4 0>, <3 0>; + + max8997,pmic-buck1-uses-gpio-dvs; + max8997,pmic-buck2-uses-gpio-dvs; + max8997,pmic-buck5-uses-gpio-dvs; + + max8997,pmic-ignore-gpiodvs-side-effect; + max8997,pmic-buck125-default-dvs-idx = <0>; + + max8997,pmic-buck125-dvs-gpios = <&gpx0 0 1 0 0>, /* SET1 */ + <&gpx0 1 1 0 0>, /* SET2 */ + <&gpx0 2 1 0 0>; /* SET3 */ + + max8997,pmic-buck1-dvs-voltage = <1350000>, <1300000>, + <1250000>, <1200000>, + <1150000>, <1100000>, + <1000000>, <950000>; + + max8997,pmic-buck2-dvs-voltage = <1100000>, <1100000>, + <1100000>, <1100000>, + <1000000>, <1000000>, + <1000000>, <1000000>; + + max8997,pmic-buck5-dvs-voltage = <1200000>, <1200000>, + <1200000>, <1200000>, + <1200000>, <1200000>, + <1200000>, <1200000>; + + regulators { + ldo1_reg: LDO1 { + regulator-name = "VDD_ABB_3.3V"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + + ldo2_reg: LDO2 { + regulator-name = "VDD_ALIVE_1.1V"; + regulator-min-microvolt = <1100000>; + regulator-max-microvolt = <1100000>; + regulator-always-on; + }; + + buck1_reg: BUCK1 { + regulator-name = "VDD_ARM_1.2V"; + regulator-min-microvolt = <950000>; + regulator-max-microvolt = <1350000>; + regulator-always-on; + regulator-boot-on; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/regulator/vexpress.txt b/Documentation/devicetree/bindings/regulator/vexpress.txt new file mode 100644 index 00000000000..d775f72487a --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/vexpress.txt @@ -0,0 +1,32 @@ +Versatile Express voltage regulators +------------------------------------ + +Requires node properties: +- "compatible" value: "arm,vexpress-volt" +- "arm,vexpress-sysreg,func" when controlled via vexpress-sysreg + (see Documentation/devicetree/bindings/arm/vexpress-sysreg.txt + for more details) + +Required regulator properties: +- "regulator-name" +- "regulator-always-on" + +Optional regulator properties: +- "regulator-min-microvolt" +- "regulator-max-microvolt" + +See Documentation/devicetree/bindings/regulator/regulator.txt +for more details about the regulator properties. + +When no "regulator-[min|max]-microvolt" properties are defined, +the device is treated as fixed (or rather "read-only") regulator. + +Example: + volt@0 { + compatible = "arm,vexpress-volt"; + arm,vexpress-sysreg,func = <2 0>; + regulator-name = "Cores"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <1050000>; + regulator-always-on; + }; diff --git a/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt b/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt new file mode 100644 index 00000000000..93f45e9dce7 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt @@ -0,0 +1,19 @@ +NVIDIA Tegra20 real-time clock + +The Tegra RTC maintains seconds and milliseconds counters, and five alarm +registers. The alarms and other interrupts may wake the system from low-power +state. + +Required properties: + +- compatible : should be "nvidia,tegra20-rtc". +- reg : Specifies base physical address and size of the registers. +- interrupts : A single interrupt specifier. + +Example: + +timer { + compatible = "nvidia,tegra20-rtc"; + reg = <0x7000e000 0x100>; + interrupts = <0 2 0x04>; +}; diff --git a/Documentation/devicetree/bindings/sound/ak4104.txt b/Documentation/devicetree/bindings/sound/ak4104.txt new file mode 100644 index 00000000000..b902ee39cf8 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/ak4104.txt @@ -0,0 +1,22 @@ +AK4104 S/PDIF transmitter + +This device supports SPI mode only. + +Required properties: + + - compatible : "asahi-kasei,ak4104" + + - reg : The chip select number on the SPI bus + +Optional properties: + + - reset-gpio : a GPIO spec for the reset pin. If specified, it will be + deasserted before communication to the device starts. + +Example: + +spdif: ak4104@0 { + compatible = "asahi-kasei,ak4104"; + reg = <0>; + spi-max-frequency = <5000000>; +}; diff --git a/Documentation/devicetree/bindings/sound/atmel-at91sam9g20ek-wm8731-audio.txt b/Documentation/devicetree/bindings/sound/atmel-at91sam9g20ek-wm8731-audio.txt new file mode 100644 index 00000000000..9c5a9947b64 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/atmel-at91sam9g20ek-wm8731-audio.txt @@ -0,0 +1,26 @@ +* Atmel at91sam9g20ek wm8731 audio complex + +Required properties: + - compatible: "atmel,at91sam9g20ek-wm8731-audio" + - atmel,model: The user-visible name of this sound complex. + - atmel,audio-routing: A list of the connections between audio components. + - atmel,ssc-controller: The phandle of the SSC controller + - atmel,audio-codec: The phandle of the WM8731 audio codec +Optional properties: + - pinctrl-names, pinctrl-0: Please refer to pinctrl-bindings.txt + +Example: +sound { + compatible = "atmel,at91sam9g20ek-wm8731-audio"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pck0_as_mck>; + + atmel,model = "wm8731 @ AT91SAMG20EK"; + + atmel,audio-routing = + "Ext Spk", "LHPOUT", + "Int MIC", "MICIN"; + + atmel,ssc-controller = <&ssc0>; + atmel,audio-codec = <&wm8731>; +}; diff --git a/Documentation/devicetree/bindings/sound/cs4271.txt b/Documentation/devicetree/bindings/sound/cs4271.txt index c81b5fd5a5b..a850fb9c88e 100644 --- a/Documentation/devicetree/bindings/sound/cs4271.txt +++ b/Documentation/devicetree/bindings/sound/cs4271.txt @@ -18,6 +18,8 @@ Optional properties: - reset-gpio: a GPIO spec to define which pin is connected to the chip's !RESET pin + - cirrus,amuteb-eq-bmutec: When given, the Codec's AMUTEB=BMUTEC flag + is enabled. Examples: diff --git a/Documentation/devicetree/bindings/sound/omap-abe-twl6040.txt b/Documentation/devicetree/bindings/sound/omap-abe-twl6040.txt index 65dec876cb2..fd40c852d7c 100644 --- a/Documentation/devicetree/bindings/sound/omap-abe-twl6040.txt +++ b/Documentation/devicetree/bindings/sound/omap-abe-twl6040.txt @@ -12,7 +12,7 @@ Required properties: Optional properties: - ti,dmic: phandle for the OMAP dmic node if the machine have it connected -- ti,jack_detection: Need to be set to <1> if the board capable to detect jack +- ti,jack_detection: Need to be present if the board capable to detect jack insertion, removal. Available audio endpoints for the audio-routing table: @@ -59,7 +59,7 @@ sound { compatible = "ti,abe-twl6040"; ti,model = "SDP4430"; - ti,jack-detection = <1>; + ti,jack-detection; ti,mclk-freq = <38400000>; ti,mcpdm = <&mcpdm>; diff --git a/Documentation/devicetree/bindings/timer/nvidia,tegra20-timer.txt b/Documentation/devicetree/bindings/timer/nvidia,tegra20-timer.txt new file mode 100644 index 00000000000..e019fdc3877 --- /dev/null +++ b/Documentation/devicetree/bindings/timer/nvidia,tegra20-timer.txt @@ -0,0 +1,21 @@ +NVIDIA Tegra20 timer + +The Tegra20 timer provides four 29-bit timer channels and a single 32-bit free +running counter. The first two channels may also trigger a watchdog reset. + +Required properties: + +- compatible : should be "nvidia,tegra20-timer". +- reg : Specifies base physical address and size of the registers. +- interrupts : A list of 4 interrupts; one per timer channel. + +Example: + +timer { + compatible = "nvidia,tegra20-timer"; + reg = <0x60005000 0x60>; + interrupts = <0 0 0x04 + 0 1 0x04 + 0 41 0x04 + 0 42 0x04>; +}; diff --git a/Documentation/devicetree/bindings/timer/nvidia,tegra30-timer.txt b/Documentation/devicetree/bindings/timer/nvidia,tegra30-timer.txt new file mode 100644 index 00000000000..906109d4c59 --- /dev/null +++ b/Documentation/devicetree/bindings/timer/nvidia,tegra30-timer.txt @@ -0,0 +1,23 @@ +NVIDIA Tegra30 timer + +The Tegra30 timer provides ten 29-bit timer channels, a single 32-bit free +running counter, and 5 watchdog modules. The first two channels may also +trigger a legacy watchdog reset. + +Required properties: + +- compatible : should be "nvidia,tegra30-timer", "nvidia,tegra20-timer". +- reg : Specifies base physical address and size of the registers. +- interrupts : A list of 6 interrupts; one per each of timer channels 1 + through 5, and one for the shared interrupt for the remaining channels. + +timer { + compatible = "nvidia,tegra30-timer", "nvidia,tegra20-timer"; + reg = <0x60005000 0x400>; + interrupts = <0 0 0x04 + 0 1 0x04 + 0 41 0x04 + 0 42 0x04 + 0 121 0x04 + 0 122 0x04>; +}; diff --git a/Documentation/devicetree/bindings/usb/ehci-orion.txt b/Documentation/devicetree/bindings/usb/ehci-orion.txt new file mode 100644 index 00000000000..6bc09ec14c4 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/ehci-orion.txt @@ -0,0 +1,15 @@ +* EHCI controller, Orion Marvell variants + +Required properties: +- compatible: must be "marvell,orion-ehci" +- reg: physical base address of the controller and length of memory mapped + region. +- interrupts: The EHCI interrupt + +Example: + + ehci@50000 { + compatible = "marvell,orion-ehci"; + reg = <0x50000 0x1000>; + interrupts = <19>; + }; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 770a0193ca1..902b1b1f568 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -55,4 +55,5 @@ ti Texas Instruments via VIA Technologies, Inc. wlf Wolfson Microelectronics wm Wondermedia Technologies, Inc. +winbond Winbond Electronics corp. xlnx Xilinx diff --git a/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt b/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt new file mode 100644 index 00000000000..2957ebb5aa7 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt @@ -0,0 +1,15 @@ +* Atmel Watchdog Timers + +** at91sam9-wdt + +Required properties: +- compatible: must be "atmel,at91sam9260-wdt". +- reg: physical base address of the controller and length of memory mapped + region. + +Example: + + watchdog@fffffd40 { + compatible = "atmel,at91sam9260-wdt"; + reg = <0xfffffd40 0x10>; + }; diff --git a/Documentation/dma-buf-sharing.txt b/Documentation/dma-buf-sharing.txt index ad86fb86c9a..0188903bc9e 100644 --- a/Documentation/dma-buf-sharing.txt +++ b/Documentation/dma-buf-sharing.txt @@ -376,7 +376,7 @@ Being able to mmap an export dma-buf buffer object has 2 main use-cases: leaving the cpu domain and flushing caches at fault time. Note that all the dma_buf files share the same anon inode, hence the exporter needs to replace the dma_buf file stored in vma->vm_file with it's own if pte shootdown is - requred. This is because the kernel uses the underlying inode's address_space + required. This is because the kernel uses the underlying inode's address_space for vma tracking (and hence pte tracking at shootdown time with unmap_mapping_range). @@ -388,7 +388,7 @@ Being able to mmap an export dma-buf buffer object has 2 main use-cases: Exporters that shoot down mappings (for any reasons) shall not do any synchronization at fault time with outstanding device operations. Synchronization is an orthogonal issue to sharing the backing storage of a - buffer and hence should not be handled by dma-buf itself. This is explictly + buffer and hence should not be handled by dma-buf itself. This is explicitly mentioned here because many people seem to want something like this, but if different exporters handle this differently, buffer sharing can fail in interesting ways depending upong the exporter (if userspace starts depending diff --git a/Documentation/dontdiff b/Documentation/dontdiff index 74c25c8d888..b89a739a327 100644 --- a/Documentation/dontdiff +++ b/Documentation/dontdiff @@ -181,7 +181,6 @@ modversions.h* nconf ncscope.* offset.h -offsets.h oui.c* page-types parse.c diff --git a/Documentation/fault-injection/notifier-error-inject.txt b/Documentation/fault-injection/notifier-error-inject.txt index c83526c364e..09adabef513 100644 --- a/Documentation/fault-injection/notifier-error-inject.txt +++ b/Documentation/fault-injection/notifier-error-inject.txt @@ -1,7 +1,7 @@ Notifier error injection ======================== -Notifier error injection provides the ability to inject artifical errors to +Notifier error injection provides the ability to inject artificial errors to specified notifier chain callbacks. It is useful to test the error handling of notifier call chain failures which is rarely executed. There are kernel modules that can be used to test the following notifiers. @@ -14,7 +14,7 @@ modules that can be used to test the following notifiers. CPU notifier error injection module ----------------------------------- This feature can be used to test the error handling of the CPU notifiers by -injecting artifical errors to CPU notifier chain callbacks. +injecting artificial errors to CPU notifier chain callbacks. If the notifier call chain should be failed with some events notified, write the error code to debugfs interface diff --git a/Documentation/hid/uhid.txt b/Documentation/hid/uhid.txt index 4627c4241ec..3c741214dfb 100644 --- a/Documentation/hid/uhid.txt +++ b/Documentation/hid/uhid.txt @@ -108,7 +108,7 @@ the request was handled successfully. UHID_FEATURE_ANSWER: If you receive a UHID_FEATURE request you must answer with this request. You must copy the "id" field from the request into the answer. Set the "err" field - to 0 if no error occured or to EIO if an I/O error occurred. + to 0 if no error occurred or to EIO if an I/O error occurred. If "err" is 0 then you should fill the buffer of the answer with the results of the feature request and set "size" correspondingly. diff --git a/Documentation/hwmon/pmbus b/Documentation/hwmon/pmbus index f90f99920cc..3d3a0f97f96 100644 --- a/Documentation/hwmon/pmbus +++ b/Documentation/hwmon/pmbus @@ -138,7 +138,7 @@ Sysfs entries When probing the chip, the driver identifies which PMBus registers are supported, and determines available sensors from this information. -Attribute files only exist if respective sensors are suported by the chip. +Attribute files only exist if respective sensors are supported by the chip. Labels are provided to inform the user about the sensor associated with a given sysfs entry. diff --git a/Documentation/hwmon/vexpress b/Documentation/hwmon/vexpress new file mode 100644 index 00000000000..557d6d5ad90 --- /dev/null +++ b/Documentation/hwmon/vexpress @@ -0,0 +1,34 @@ +Kernel driver vexpress +====================== + +Supported systems: + * ARM Ltd. Versatile Express platform + Prefix: 'vexpress' + Datasheets: + * "Hardware Description" sections of the Technical Reference Manuals + for the Versatile Express boards: + http://infocenter.arm.com/help/topic/com.arm.doc.subset.boards.express/index.html + * Section "4.4.14. System Configuration registers" of the V2M-P1 TRM: + http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0447-/index.html + +Author: Pawel Moll + +Description +----------- + +Versatile Express platform (http://www.arm.com/versatileexpress/) is a +reference & prototyping system for ARM Ltd. processors. It can be set up +from a wide range of boards, each of them containing (apart of the main +chip/FPGA) a number of microcontrollers responsible for platform +configuration and control. Theses microcontrollers can also monitor the +board and its environment by a number of internal and external sensors, +providing information about power lines voltages and currents, board +temperature and power usage. Some of them also calculate consumed energy +and provide a cumulative use counter. + +The configuration devices are _not_ memory mapped and must be accessed +via a custom interface, abstracted by the "vexpress_config" API. + +As these devices are non-discoverable, they must be described in a Device +Tree passed to the kernel. Details of the DT binding for them can be found +in Documentation/devicetree/bindings/hwmon/vexpress.txt. diff --git a/Documentation/input/alps.txt b/Documentation/input/alps.txt index ae8ba9a74ce..3262b6e4d68 100644 --- a/Documentation/input/alps.txt +++ b/Documentation/input/alps.txt @@ -133,7 +133,7 @@ number of contacts (f1 and f0 in the table below). This packet only appears after a position packet with the mt bit set, and usually only appears when there are two or more contacts (although -occassionally it's seen with only a single contact). +occasionally it's seen with only a single contact). The final v3 packet type is the trackstick packet. diff --git a/Documentation/input/event-codes.txt b/Documentation/input/event-codes.txt index 53305bd0818..f1ea2c69648 100644 --- a/Documentation/input/event-codes.txt +++ b/Documentation/input/event-codes.txt @@ -196,6 +196,17 @@ EV_MSC: EV_MSC events are used for input and output events that do not fall under other categories. +A few EV_MSC codes have special meaning: + +* MSC_TIMESTAMP: + - Used to report the number of microseconds since the last reset. This event + should be coded as an uint32 value, which is allowed to wrap around with + no special consequence. It is assumed that the time difference between two + consecutive events is reliable on a reasonable time scale (hours). + A reset to zero can happen, in which case the time since the last event is + unknown. If the device does not provide this information, the driver must + not provide it to user space. + EV_LED: ---------- EV_LED events are used for input and output to set and query the state of diff --git a/Documentation/kbuild/modules.txt b/Documentation/kbuild/modules.txt index 3fb39e0116b..69372fb98cf 100644 --- a/Documentation/kbuild/modules.txt +++ b/Documentation/kbuild/modules.txt @@ -470,7 +470,7 @@ build. Sometimes, an external module uses exported symbols from another external module. kbuild needs to have full knowledge of - all symbols to avoid spitting out warnings about undefined + all symbols to avoid spliitting out warnings about undefined symbols. Three solutions exist for this situation. NOTE: The method with a top-level kbuild file is recommended diff --git a/Documentation/kernel-doc-nano-HOWTO.txt b/Documentation/kernel-doc-nano-HOWTO.txt index 3d8a97747f7..99b57abddf8 100644 --- a/Documentation/kernel-doc-nano-HOWTO.txt +++ b/Documentation/kernel-doc-nano-HOWTO.txt @@ -64,6 +64,8 @@ Example kernel-doc function comment: * comment lines. * * The longer description can have multiple paragraphs. + * + * Return: Describe the return value of foobar. */ The short description following the subject can span multiple lines @@ -78,6 +80,8 @@ If a function parameter is "..." (varargs), it should be listed in kernel-doc notation as: * @...: description +The return value, if any, should be described in a dedicated section +named "Return". Example kernel-doc data structure comment. @@ -222,6 +226,9 @@ only a "*"). "section header:" names must be unique per function (or struct, union, typedef, enum). +Use the section header "Return" for sections describing the return value +of a function. + Avoid putting a spurious blank line after the function name, or else the description will be repeated! @@ -237,21 +244,21 @@ patterns, which are highlighted appropriately. NOTE 1: The multi-line descriptive text you provide does *not* recognize line breaks, so if you try to format some text nicely, as in: - Return codes + Return: 0 - cool 1 - invalid arg 2 - out of memory this will all run together and produce: - Return codes 0 - cool 1 - invalid arg 2 - out of memory + Return: 0 - cool 1 - invalid arg 2 - out of memory NOTE 2: If the descriptive text you provide has lines that begin with some phrase followed by a colon, each of those phrases will be taken as a new section heading, which means you should similarly try to avoid text like: - Return codes: + Return: 0: cool 1: invalid arg 2: out of memory diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 28bd0f0e32c..20e248cc03a 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -905,6 +905,24 @@ bytes respectively. Such letter suffixes can also be entirely omitted. gpt [EFI] Forces disk with valid GPT signature but invalid Protective MBR to be treated as GPT. + grcan.enable0= [HW] Configuration of physical interface 0. Determines + the "Enable 0" bit of the configuration register. + Format: 0 | 1 + Default: 0 + grcan.enable1= [HW] Configuration of physical interface 1. Determines + the "Enable 0" bit of the configuration register. + Format: 0 | 1 + Default: 0 + grcan.select= [HW] Select which physical interface to use. + Format: 0 | 1 + Default: 0 + grcan.txsize= [HW] Sets the size of the tx buffer. + Format: <unsigned int> such that (txsize & ~0x1fffc0) == 0. + Default: 1024 + grcan.rxsize= [HW] Sets the size of the rx buffer. + Format: <unsigned int> such that (rxsize & ~0x1fffc0) == 0. + Default: 1024 + hashdist= [KNL,NUMA] Large hashes allocated during boot are distributed across NUMA nodes. Defaults on for 64-bit NUMA, off otherwise. diff --git a/Documentation/misc-devices/mei/mei-amt-version.c b/Documentation/misc-devices/mei/mei-amt-version.c index 01804f21631..49e4f770864 100644 --- a/Documentation/misc-devices/mei/mei-amt-version.c +++ b/Documentation/misc-devices/mei/mei-amt-version.c @@ -214,7 +214,7 @@ out: } /*************************************************************************** - * Intel Advanced Management Technolgy ME Client + * Intel Advanced Management Technology ME Client ***************************************************************************/ #define AMT_MAJOR_VERSION 1 @@ -256,7 +256,7 @@ struct amt_code_versions { } __attribute__((packed)); /*************************************************************************** - * Intel Advanced Management Technolgy Host Interface + * Intel Advanced Management Technology Host Interface ***************************************************************************/ struct amt_host_if_msg_header { diff --git a/Documentation/networking/batman-adv.txt b/Documentation/networking/batman-adv.txt index a173d2a879f..c1d82047a4b 100644 --- a/Documentation/networking/batman-adv.txt +++ b/Documentation/networking/batman-adv.txt @@ -203,7 +203,8 @@ abled during run time. Following log_levels are defined: 2 - Enable messages related to route added / changed / deleted 4 - Enable messages related to translation table operations 8 - Enable messages related to bridge loop avoidance -15 - enable all messages +16 - Enable messaged related to DAT, ARP snooping and parsing +31 - Enable all messages The debug output can be changed at runtime using the file /sys/class/net/bat0/mesh/log_level. e.g. diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index c7fc1072494..dd52d516cb8 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -30,16 +30,24 @@ neigh/default/gc_thresh3 - INTEGER Maximum number of neighbor entries allowed. Increase this when using large numbers of interfaces and when communicating with large numbers of directly-connected peers. + Default: 1024 neigh/default/unres_qlen_bytes - INTEGER The maximum number of bytes which may be used by packets queued for each unresolved address by other network layers. (added in linux 3.3) + Seting negative value is meaningless and will retrun error. + Default: 65536 Bytes(64KB) neigh/default/unres_qlen - INTEGER The maximum number of packets which may be queued for each unresolved address by other network layers. (deprecated in linux 3.3) : use unres_qlen_bytes instead. + Prior to linux 3.3, the default value is 3 which may cause + unexpected packet loss. The current default value is calculated + according to default value of unres_qlen_bytes and true size of + packet. + Default: 31 mtu_expires - INTEGER Time, in seconds, that cached PMTU information is kept. @@ -199,15 +207,16 @@ tcp_early_retrans - INTEGER Default: 2 tcp_ecn - INTEGER - Enable Explicit Congestion Notification (ECN) in TCP. ECN is only - used when both ends of the TCP flow support it. It is useful to - avoid losses due to congestion (when the bottleneck router supports - ECN). + Control use of Explicit Congestion Notification (ECN) by TCP. + ECN is used only when both ends of the TCP connection indicate + support for it. This feature is useful in avoiding losses due + to congestion by allowing supporting routers to signal + congestion before having to drop packets. Possible values are: - 0 disable ECN - 1 ECN enabled - 2 Only server-side ECN enabled. If the other end does - not support ECN, behavior is like with ECN disabled. + 0 Disable ECN. Neither initiate nor accept ECN. + 1 Always request ECN on outgoing connection attempts. + 2 Enable ECN when requested by incomming connections + but do not request ECN on outgoing connections. Default: 2 tcp_fack - BOOLEAN @@ -215,15 +224,14 @@ tcp_fack - BOOLEAN The value is not used, if tcp_sack is not enabled. tcp_fin_timeout - INTEGER - Time to hold socket in state FIN-WAIT-2, if it was closed - by our side. Peer can be broken and never close its side, - or even died unexpectedly. Default value is 60sec. - Usual value used in 2.2 was 180 seconds, you may restore - it, but remember that if your machine is even underloaded WEB server, - you risk to overflow memory with kilotons of dead sockets, - FIN-WAIT-2 sockets are less dangerous than FIN-WAIT-1, - because they eat maximum 1.5K of memory, but they tend - to live longer. Cf. tcp_max_orphans. + The length of time an orphaned (no longer referenced by any + application) connection will remain in the FIN_WAIT_2 state + before it is aborted at the local end. While a perfectly + valid "receive only" state for an un-orphaned connection, an + orphaned connection in FIN_WAIT_2 state could otherwise wait + forever for the remote to close its end of the connection. + Cf. tcp_max_orphans + Default: 60 seconds tcp_frto - INTEGER Enables Forward RTO-Recovery (F-RTO) defined in RFC4138. @@ -1514,6 +1522,20 @@ cookie_preserve_enable - BOOLEAN Default: 1 +cookie_hmac_alg - STRING + Select the hmac algorithm used when generating the cookie value sent by + a listening sctp socket to a connecting client in the INIT-ACK chunk. + Valid values are: + * md5 + * sha1 + * none + Ability to assign md5 or sha1 as the selected alg is predicated on the + configuarion of those algorithms at build time (CONFIG_CRYPTO_MD5 and + CONFIG_CRYPTO_SHA1). + + Default: Dependent on configuration. MD5 if available, else SHA1 if + available, else none. + rcvbuf_policy - INTEGER Determines if the receive buffer is attributed to the socket or to association. SCTP supports the capability to create multiple diff --git a/Documentation/networking/packet_mmap.txt b/Documentation/networking/packet_mmap.txt index 1c08a4b0981..94444b152fb 100644 --- a/Documentation/networking/packet_mmap.txt +++ b/Documentation/networking/packet_mmap.txt @@ -3,9 +3,9 @@ -------------------------------------------------------------------------------- This file documents the mmap() facility available with the PACKET -socket interface on 2.4 and 2.6 kernels. This type of sockets is used for -capture network traffic with utilities like tcpdump or any other that needs -raw access to network interface. +socket interface on 2.4/2.6/3.x kernels. This type of sockets is used for +i) capture network traffic with utilities like tcpdump, ii) transmit network +traffic, or any other that needs raw access to network interface. You can find the latest version of this document at: http://wiki.ipxwarzone.com/index.php5?title=Linux_packet_mmap @@ -21,19 +21,18 @@ Please send your comments to + Why use PACKET_MMAP -------------------------------------------------------------------------------- -In Linux 2.4/2.6 if PACKET_MMAP is not enabled, the capture process is very -inefficient. It uses very limited buffers and requires one system call -to capture each packet, it requires two if you want to get packet's -timestamp (like libpcap always does). +In Linux 2.4/2.6/3.x if PACKET_MMAP is not enabled, the capture process is very +inefficient. It uses very limited buffers and requires one system call to +capture each packet, it requires two if you want to get packet's timestamp +(like libpcap always does). In the other hand PACKET_MMAP is very efficient. PACKET_MMAP provides a size configurable circular buffer mapped in user space that can be used to either send or receive packets. This way reading packets just needs to wait for them, most of the time there is no need to issue a single system call. Concerning transmission, multiple packets can be sent through one system call to get the -highest bandwidth. -By using a shared buffer between the kernel and the user also has the benefit -of minimizing packet copies. +highest bandwidth. By using a shared buffer between the kernel and the user +also has the benefit of minimizing packet copies. It's fine to use PACKET_MMAP to improve the performance of the capture and transmission process, but it isn't everything. At least, if you are capturing @@ -41,7 +40,8 @@ at high speeds (this is relative to the cpu speed), you should check if the device driver of your network interface card supports some sort of interrupt load mitigation or (even better) if it supports NAPI, also make sure it is enabled. For transmission, check the MTU (Maximum Transmission Unit) used and -supported by devices of your network. +supported by devices of your network. CPU IRQ pinning of your network interface +card can also be an advantage. -------------------------------------------------------------------------------- + How to use mmap() to improve capture process @@ -87,9 +87,7 @@ the following process: socket creation and destruction is straight forward, and is done the same way with or without PACKET_MMAP: -int fd; - -fd= socket(PF_PACKET, mode, htons(ETH_P_ALL)) + int fd = socket(PF_PACKET, mode, htons(ETH_P_ALL)); where mode is SOCK_RAW for the raw interface were link level information can be captured or SOCK_DGRAM for the cooked @@ -163,11 +161,23 @@ As capture, each frame contains two parts: A complete tutorial is available at: http://wiki.gnu-log.net/ +By default, the user should put data at : + frame base + TPACKET_HDRLEN - sizeof(struct sockaddr_ll) + +So, whatever you choose for the socket mode (SOCK_DGRAM or SOCK_RAW), +the beginning of the user data will be at : + frame base + TPACKET_ALIGN(sizeof(struct tpacket_hdr)) + +If you wish to put user data at a custom offset from the beginning of +the frame (for payload alignment with SOCK_RAW mode for instance) you +can set tp_net (with SOCK_DGRAM) or tp_mac (with SOCK_RAW). In order +to make this work it must be enabled previously with setsockopt() +and the PACKET_TX_HAS_OFF option. + -------------------------------------------------------------------------------- + PACKET_MMAP settings -------------------------------------------------------------------------------- - To setup PACKET_MMAP from user level code is done with a call like - Capture process @@ -201,7 +211,6 @@ indeed, packet_set_ring checks that the following condition is true frames_per_block * tp_block_nr == tp_frame_nr - Lets see an example, with the following values: tp_block_size= 4096 @@ -227,7 +236,6 @@ be spawned across two blocks, so there are some details you have to take into account when choosing the frame_size. See "Mapping and use of the circular buffer (ring)". - -------------------------------------------------------------------------------- + PACKET_MMAP setting constraints -------------------------------------------------------------------------------- @@ -264,7 +272,6 @@ User space programs can include /usr/include/sys/user.h and The pagesize can also be determined dynamically with the getpagesize (2) system call. - Block number limit -------------------- @@ -284,7 +291,6 @@ called pg_vec, its size limits the number of blocks that can be allocated. v block #2 block #1 - kmalloc allocates any number of bytes of physically contiguous memory from a pool of pre-determined sizes. This pool of memory is maintained by the slab allocator which is at the end the responsible for doing the allocation and @@ -299,7 +305,6 @@ pointers to blocks is 131072/4 = 32768 blocks - PACKET_MMAP buffer size calculator ------------------------------------ @@ -340,7 +345,6 @@ and a value for <frame size> of 2048 bytes. These parameters will yield and hence the buffer will have a 262144 MiB size. So it can hold 262144 MiB / 2048 bytes = 134217728 frames - Actually, this buffer size is not possible with an i386 architecture. Remember that the memory is allocated in kernel space, in the case of an i386 kernel's memory size is limited to 1GiB. @@ -372,7 +376,6 @@ the following (from include/linux/if_packet.h): - Start+tp_net: Packet data, aligned to TPACKET_ALIGNMENT=16. - Pad to align to TPACKET_ALIGNMENT=16 */ - The following are conditions that are checked in packet_set_ring @@ -413,7 +416,6 @@ and the following flags apply: #define TP_STATUS_LOSING 4 #define TP_STATUS_CSUMNOTREADY 8 - TP_STATUS_COPY : This flag indicates that the frame (and associated meta information) has been truncated because it's larger than tp_frame_size. This packet can be @@ -462,7 +464,6 @@ packets are in the ring: It doesn't incur in a race condition to first check the status value and then poll for frames. - ++ Transmission process Those defines are also used for transmission: @@ -494,6 +495,196 @@ The user can also use poll() to check if a buffer is available: retval = poll(&pfd, 1, timeout); ------------------------------------------------------------------------------- ++ What TPACKET versions are available and when to use them? +------------------------------------------------------------------------------- + + int val = tpacket_version; + setsockopt(fd, SOL_PACKET, PACKET_VERSION, &val, sizeof(val)); + getsockopt(fd, SOL_PACKET, PACKET_VERSION, &val, sizeof(val)); + +where 'tpacket_version' can be TPACKET_V1 (default), TPACKET_V2, TPACKET_V3. + +TPACKET_V1: + - Default if not otherwise specified by setsockopt(2) + - RX_RING, TX_RING available + - VLAN metadata information available for packets + (TP_STATUS_VLAN_VALID) + +TPACKET_V1 --> TPACKET_V2: + - Made 64 bit clean due to unsigned long usage in TPACKET_V1 + structures, thus this also works on 64 bit kernel with 32 bit + userspace and the like + - Timestamp resolution in nanoseconds instead of microseconds + - RX_RING, TX_RING available + - How to switch to TPACKET_V2: + 1. Replace struct tpacket_hdr by struct tpacket2_hdr + 2. Query header len and save + 3. Set protocol version to 2, set up ring as usual + 4. For getting the sockaddr_ll, + use (void *)hdr + TPACKET_ALIGN(hdrlen) instead of + (void *)hdr + TPACKET_ALIGN(sizeof(struct tpacket_hdr)) + +TPACKET_V2 --> TPACKET_V3: + - Flexible buffer implementation: + 1. Blocks can be configured with non-static frame-size + 2. Read/poll is at a block-level (as opposed to packet-level) + 3. Added poll timeout to avoid indefinite user-space wait + on idle links + 4. Added user-configurable knobs: + 4.1 block::timeout + 4.2 tpkt_hdr::sk_rxhash + - RX Hash data available in user space + - Currently only RX_RING available + +------------------------------------------------------------------------------- ++ AF_PACKET fanout mode +------------------------------------------------------------------------------- + +In the AF_PACKET fanout mode, packet reception can be load balanced among +processes. This also works in combination with mmap(2) on packet sockets. + +Minimal example code by David S. Miller (try things like "./test eth0 hash", +"./test eth0 lb", etc.): + +#include <stddef.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +#include <sys/types.h> +#include <sys/wait.h> +#include <sys/socket.h> +#include <sys/ioctl.h> + +#include <unistd.h> + +#include <linux/if_ether.h> +#include <linux/if_packet.h> + +#include <net/if.h> + +static const char *device_name; +static int fanout_type; +static int fanout_id; + +#ifndef PACKET_FANOUT +# define PACKET_FANOUT 18 +# define PACKET_FANOUT_HASH 0 +# define PACKET_FANOUT_LB 1 +#endif + +static int setup_socket(void) +{ + int err, fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_IP)); + struct sockaddr_ll ll; + struct ifreq ifr; + int fanout_arg; + + if (fd < 0) { + perror("socket"); + return EXIT_FAILURE; + } + + memset(&ifr, 0, sizeof(ifr)); + strcpy(ifr.ifr_name, device_name); + err = ioctl(fd, SIOCGIFINDEX, &ifr); + if (err < 0) { + perror("SIOCGIFINDEX"); + return EXIT_FAILURE; + } + + memset(&ll, 0, sizeof(ll)); + ll.sll_family = AF_PACKET; + ll.sll_ifindex = ifr.ifr_ifindex; + err = bind(fd, (struct sockaddr *) &ll, sizeof(ll)); + if (err < 0) { + perror("bind"); + return EXIT_FAILURE; + } + + fanout_arg = (fanout_id | (fanout_type << 16)); + err = setsockopt(fd, SOL_PACKET, PACKET_FANOUT, + &fanout_arg, sizeof(fanout_arg)); + if (err) { + perror("setsockopt"); + return EXIT_FAILURE; + } + + return fd; +} + +static void fanout_thread(void) +{ + int fd = setup_socket(); + int limit = 10000; + + if (fd < 0) + exit(fd); + + while (limit-- > 0) { + char buf[1600]; + int err; + + err = read(fd, buf, sizeof(buf)); + if (err < 0) { + perror("read"); + exit(EXIT_FAILURE); + } + if ((limit % 10) == 0) + fprintf(stdout, "(%d) \n", getpid()); + } + + fprintf(stdout, "%d: Received 10000 packets\n", getpid()); + + close(fd); + exit(0); +} + +int main(int argc, char **argp) +{ + int fd, err; + int i; + + if (argc != 3) { + fprintf(stderr, "Usage: %s INTERFACE {hash|lb}\n", argp[0]); + return EXIT_FAILURE; + } + + if (!strcmp(argp[2], "hash")) + fanout_type = PACKET_FANOUT_HASH; + else if (!strcmp(argp[2], "lb")) + fanout_type = PACKET_FANOUT_LB; + else { + fprintf(stderr, "Unknown fanout type [%s]\n", argp[2]); + exit(EXIT_FAILURE); + } + + device_name = argp[1]; + fanout_id = getpid() & 0xffff; + + for (i = 0; i < 4; i++) { + pid_t pid = fork(); + + switch (pid) { + case 0: + fanout_thread(); + + case -1: + perror("fork"); + exit(EXIT_FAILURE); + } + } + + for (i = 0; i < 4; i++) { + int status; + + wait(&status); + } + + return 0; +} + +------------------------------------------------------------------------------- + PACKET_TIMESTAMP ------------------------------------------------------------------------------- @@ -519,6 +710,13 @@ the networking stack is used (the behavior before this setting was added). See include/linux/net_tstamp.h and Documentation/networking/timestamping for more information on hardware timestamps. +------------------------------------------------------------------------------- ++ Miscellaneous bits +------------------------------------------------------------------------------- + +- Packet sockets work well together with Linux socket filters, thus you also + might want to have a look at Documentation/networking/filter.txt + -------------------------------------------------------------------------------- + THANKS -------------------------------------------------------------------------------- diff --git a/Documentation/networking/stmmac.txt b/Documentation/networking/stmmac.txt index ef9ee71b4d7..f9fa6db40a5 100644 --- a/Documentation/networking/stmmac.txt +++ b/Documentation/networking/stmmac.txt @@ -29,11 +29,9 @@ The kernel configuration option is STMMAC_ETH: dma_txsize: DMA tx ring size; buf_sz: DMA buffer size; tc: control the HW FIFO threshold; - tx_coe: Enable/Disable Tx Checksum Offload engine; watchdog: transmit timeout (in milliseconds); flow_ctrl: Flow control ability [on/off]; pause: Flow Control Pause Time; - tmrate: timer period (only if timer optimisation is configured). 3) Command line options Driver parameters can be also passed in command line by using: @@ -60,17 +58,19 @@ Then the poll method will be scheduled at some future point. The incoming packets are stored, by the DMA, in a list of pre-allocated socket buffers in order to avoid the memcpy (Zero-copy). -4.3) Timer-Driver Interrupt -Instead of having the device that asynchronously notifies the frame receptions, -the driver configures a timer to generate an interrupt at regular intervals. -Based on the granularity of the timer, the frames that are received by the -device will experience different levels of latency. Some NICs have dedicated -timer device to perform this task. STMMAC can use either the RTC device or the -TMU channel 2 on STLinux platforms. -The timers frequency can be passed to the driver as parameter; when change it, -take care of both hardware capability and network stability/performance impact. -Several performance tests on STM platforms showed this optimisation allows to -spare the CPU while having the maximum throughput. +4.3) Interrupt Mitigation +The driver is able to mitigate the number of its DMA interrupts +using NAPI for the reception on chips older than the 3.50. +New chips have an HW RX-Watchdog used for this mitigation. + +On Tx-side, the mitigation schema is based on a SW timer that calls the +tx function (stmmac_tx) to reclaim the resource after transmitting the +frames. +Also there is another parameter (like a threshold) used to program +the descriptors avoiding to set the interrupt on completion bit in +when the frame is sent (xmit). + +Mitigation parameters can be tuned by ethtool. 4.4) WOL Wake up on Lan feature through Magic and Unicast frames are supported for the @@ -121,6 +121,7 @@ struct plat_stmmacenet_data { int bugged_jumbo; int pmt; int force_sf_dma_mode; + int riwt_off; void (*fix_mac_speed)(void *priv, unsigned int speed); void (*bus_setup)(void __iomem *ioaddr); int (*init)(struct platform_device *pdev); @@ -156,6 +157,7 @@ Where: o pmt: core has the embedded power module (optional). o force_sf_dma_mode: force DMA to use the Store and Forward mode instead of the Threshold. + o riwt_off: force to disable the RX watchdog feature and switch to NAPI mode. o fix_mac_speed: this callback is used for modifying some syscfg registers (on ST SoCs) according to the link speed negotiated by the physical layer . diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt index d90d8ec2853..b9cfd339a6f 100644 --- a/Documentation/sound/alsa/ALSA-Configuration.txt +++ b/Documentation/sound/alsa/ALSA-Configuration.txt @@ -1905,7 +1905,6 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. vid - Vendor ID for the device (optional) pid - Product ID for the device (optional) nrpacks - Max. number of packets per URB (default: 8) - async_unlink - Use async unlink mode (default: yes) device_setup - Device specific magic number (optional) - Influence depends on the device - Default: 0x0000 @@ -1917,8 +1916,6 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. NB: nrpacks parameter can be modified dynamically via sysfs. Don't put the value over 20. Changing via sysfs has no sanity check. - NB: async_unlink=0 would cause Oops. It remains just for - debugging purpose (if any). NB: ignore_ctl_error=1 may help when you get an error at accessing the mixer element such as URB error -22. This happens on some buggy USB device or the controller. diff --git a/Documentation/video4linux/bttv/Cards b/Documentation/video4linux/bttv/Cards index db833ced2cb..a8fb6e2d3c8 100644 --- a/Documentation/video4linux/bttv/Cards +++ b/Documentation/video4linux/bttv/Cards @@ -43,7 +43,7 @@ Very nice card if you only have satellite TV but several tuners connected to the card via composite. Many thanks to Matrix-Vision for giving us 2 cards for free which made -Bt848a/Bt849 single crytal operation support possible!!! +Bt848a/Bt849 single crystal operation support possible!!! diff --git a/Documentation/video4linux/bttv/Sound-FAQ b/Documentation/video4linux/bttv/Sound-FAQ index 395f6c6fdd9..d3f1d7783d1 100644 --- a/Documentation/video4linux/bttv/Sound-FAQ +++ b/Documentation/video4linux/bttv/Sound-FAQ @@ -82,7 +82,7 @@ card installed, you might to check out if you can read these registers values used by the windows driver. A tool to do this is available from ftp://telepresence.dmem.strath.ac.uk/pub/bt848/winutil, but it does'nt work with bt878 boards according to some reports I received. -Another one with bt878 suport is available from +Another one with bt878 support is available from http://btwincap.sourceforge.net/Files/btspy2.00.zip You might also dig around in the *.ini files of the Windows applications. diff --git a/Documentation/vm/frontswap.txt b/Documentation/vm/frontswap.txt index 5ef2d136642..c71a019be60 100644 --- a/Documentation/vm/frontswap.txt +++ b/Documentation/vm/frontswap.txt @@ -193,7 +193,7 @@ faster. or maybe swap-over-nbd/NFS)? No. First, the existing swap subsystem doesn't allow for any kind of -swap hierarchy. Perhaps it could be rewritten to accomodate a hierarchy, +swap hierarchy. Perhaps it could be rewritten to accommodate a hierarchy, but this would require fairly drastic changes. Even if it were rewritten, the existing swap subsystem uses the block I/O layer which assumes a swap device is fixed size and any page in it is linearly |