From e42839b012eb8179ed2e3571bfcd133fba5df154 Mon Sep 17 00:00:00 2001 From: Mengdong Lin Date: Thu, 24 Mar 2016 10:53:14 +0800 Subject: ASoC: topology: ABI - Define types for vendor tuples Tuples, a pair of token and value, can be used to define vendor specific data, for controls and widgets. This can avoid importing binary data blob from other files. Vendor specific tuple arrays will be embeded in the private data buffer of a control or widget object. To be backward compatible, union is used to define the tuple arrays in the existing private data ABI object 'struct snd_soc_tplg_private'. Vendors need to make sure the token values defined by the topology conf file match those defined by their driver. Now supported tuple types are uuid, string, bool, byte, short and word. Signed-off-by: Mengdong Lin Signed-off-by: Mark Brown --- include/uapi/sound/asoc.h | 42 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 41 insertions(+), 1 deletion(-) (limited to 'include/uapi') diff --git a/include/uapi/sound/asoc.h b/include/uapi/sound/asoc.h index c4cc1e40b35c..db86b447b515 100644 --- a/include/uapi/sound/asoc.h +++ b/include/uapi/sound/asoc.h @@ -116,6 +116,14 @@ #define SND_SOC_TPLG_STREAM_PLAYBACK 0 #define SND_SOC_TPLG_STREAM_CAPTURE 1 +/* vendor tuple types */ +#define SND_SOC_TPLG_TUPLE_TYPE_UUID 0 +#define SND_SOC_TPLG_TUPLE_TYPE_STRING 1 +#define SND_SOC_TPLG_TUPLE_TYPE_BOOL 2 +#define SND_SOC_TPLG_TUPLE_TYPE_BYTE 3 +#define SND_SOC_TPLG_TUPLE_TYPE_WORD 4 +#define SND_SOC_TPLG_TUPLE_TYPE_SHORT 5 + /* * Block Header. * This header precedes all object and object arrays below. @@ -132,6 +140,35 @@ struct snd_soc_tplg_hdr { __le32 count; /* number of elements in block */ } __attribute__((packed)); +/* vendor tuple for uuid */ +struct snd_soc_tplg_vendor_uuid_elem { + __le32 token; + char uuid[16]; +} __attribute__((packed)); + +/* vendor tuple for a bool/byte/short/word value */ +struct snd_soc_tplg_vendor_value_elem { + __le32 token; + __le32 value; +} __attribute__((packed)); + +/* vendor tuple for string */ +struct snd_soc_tplg_vendor_string_elem { + __le32 token; + char string[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; +} __attribute__((packed)); + +struct snd_soc_tplg_vendor_array { + __le32 size; /* size in bytes of the array, including all elements */ + __le32 type; /* SND_SOC_TPLG_TUPLE_TYPE_ */ + __le32 num_elems; /* number of elements in array */ + union { + struct snd_soc_tplg_vendor_uuid_elem uuid[0]; + struct snd_soc_tplg_vendor_value_elem value[0]; + struct snd_soc_tplg_vendor_string_elem string[0]; + }; +} __attribute__((packed)); + /* * Private data. * All topology objects may have private data that can be used by the driver or @@ -139,7 +176,10 @@ struct snd_soc_tplg_hdr { */ struct snd_soc_tplg_private { __le32 size; /* in bytes of private data */ - char data[0]; + union { + char data[0]; + struct snd_soc_tplg_vendor_array array[0]; + }; } __attribute__((packed)); /* -- cgit v1.2.3 From 4c4925fa0c2b5943655ef28b2d6a379961db551f Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 30 Mar 2016 17:12:33 +0200 Subject: drm: Make drm.h uapi header safe for C++ virtual is a protected keyword in C++ and can't be used at all. Ugh. This aligns the kernel versions of the drm headers with the ones in libdrm. v2: Also annote with __user, as request by Emil&Ilia. Cc: Ilia Mirkin Cc: Emil Velikov Reviewed-by: Emil Velikov Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1459350753-18320-1-git-send-email-daniel.vetter@ffwll.ch --- include/uapi/drm/drm.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h index a0ebfe7c9a28..7d42d105f32a 100644 --- a/include/uapi/drm/drm.h +++ b/include/uapi/drm/drm.h @@ -373,7 +373,11 @@ struct drm_buf_pub { */ struct drm_buf_map { int count; /**< Length of the buffer list */ +#ifdef __cplusplus + void __user *virt; +#else void __user *virtual; /**< Mmap'd area in user-virtual */ +#endif struct drm_buf_pub __user *list; /**< Buffer information */ }; -- cgit v1.2.3 From 0b1ccd49ba3252c5cbb0ac98ee2a8682b9a529cb Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 30 Mar 2016 17:54:52 +0200 Subject: drm: align #include directives with libdrm in uapi headers We can't use because that upsets the serach paths in libdrm. Also, drop the circular inclusion in drm_mode.h. v2: Actually change the right headers. v3: Drop the #include removal per Emil's request. Cc: Emil Velikov Reviewed-by: Emil Velikov Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1459353292-9063-1-git-send-email-daniel.vetter@ffwll.ch --- include/uapi/drm/drm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/uapi') diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h index 7d42d105f32a..85ada499574b 100644 --- a/include/uapi/drm/drm.h +++ b/include/uapi/drm/drm.h @@ -685,7 +685,7 @@ struct drm_prime_handle { __s32 fd; }; -#include +#include "drm_mode.h" #define DRM_IOCTL_BASE 'd' #define DRM_IO(nr) _IO(DRM_IOCTL_BASE,nr) -- cgit v1.2.3 From 8812f3814120873ac625d0085e64e4b83ff5aff3 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 30 Mar 2016 16:19:44 +0200 Subject: drm: Move DRM_MODE_OBJECT_* to uapi headers These type defines are officially part of the uapi, but ended up in the wrong headers somehow when we split them all. Cc: Emil Velikov Reviewed-by: Emil Velikov Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1459347584-30566-3-git-send-email-daniel.vetter@ffwll.ch --- include/uapi/drm/drm_mode.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h index c0217434d28d..7a7856e02e49 100644 --- a/include/uapi/drm/drm_mode.h +++ b/include/uapi/drm/drm_mode.h @@ -320,6 +320,16 @@ struct drm_mode_connector_set_property { __u32 connector_id; }; +#define DRM_MODE_OBJECT_CRTC 0xcccccccc +#define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0 +#define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0 +#define DRM_MODE_OBJECT_MODE 0xdededede +#define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0 +#define DRM_MODE_OBJECT_FB 0xfbfbfbfb +#define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb +#define DRM_MODE_OBJECT_PLANE 0xeeeeeeee +#define DRM_MODE_OBJECT_ANY 0 + struct drm_mode_obj_get_properties { __u64 props_ptr; __u64 prop_values_ptr; -- cgit v1.2.3 From 00c9672606f781f2db7e904127dcbdc2831701ca Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 30 Mar 2016 16:42:22 +0200 Subject: drm: Untangle __KERNEL__ guards make headers_install can't handle fancy conditions, so let's simplify things for it a bit. Cc: Emil Velikov Reviewed-by: Emil Velikov Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1459348943-12803-1-git-send-email-daniel.vetter@ffwll.ch --- include/uapi/drm/drm.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'include/uapi') diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h index 85ada499574b..fbc0818bb95b 100644 --- a/include/uapi/drm/drm.h +++ b/include/uapi/drm/drm.h @@ -36,7 +36,13 @@ #ifndef _DRM_H_ #define _DRM_H_ -#if defined(__KERNEL__) || defined(__linux__) +#if defined(__KERNEL__) + +#include +#include +typedef unsigned int drm_handle_t; + +#elif defined(__linux__) #include #include -- cgit v1.2.3 From 00fdf360d05111d4dfc4cb03727ff26f8ab2fd46 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 30 Mar 2016 16:42:23 +0200 Subject: drm: Make uapi headers C89 pendantic compliant This ports the below libdrm commit to the kernel commit 0f4452bb51306024fbf4cbf77d8baab20cefba67 Author: Daniel Kurtz Date: Mon Aug 26 23:39:16 2013 +0800 libdrm: Make some drm headers compatible with gcc -std=c89 -pedantic The following minor changes were needed to these headers: * Convert // comments to /* */ * No , after final member of enum With these changes, these header files can be included by a program that is built with gcc options: -std=c89 -Werror -pedantic Signed-off-by: Daniel Kurtz Signed-off-by: Eric Anholt Reviewed-by: Eric Anholt Reviewed-by: Emil Velikov Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1459348943-12803-2-git-send-email-daniel.vetter@ffwll.ch --- include/uapi/drm/drm.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/uapi') diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h index fbc0818bb95b..368325061ca7 100644 --- a/include/uapi/drm/drm.h +++ b/include/uapi/drm/drm.h @@ -187,7 +187,7 @@ enum drm_map_type { _DRM_SHM = 2, /**< shared, cached */ _DRM_AGP = 3, /**< AGP/GART */ _DRM_SCATTER_GATHER = 4, /**< Scatter/gather memory for PCI DMA */ - _DRM_CONSISTENT = 5, /**< Consistent memory for PCI DMA */ + _DRM_CONSISTENT = 5 /**< Consistent memory for PCI DMA */ }; /** @@ -441,7 +441,7 @@ struct drm_draw { * DRM_IOCTL_UPDATE_DRAW ioctl argument type. */ typedef enum { - DRM_DRAWABLE_CLIPRECTS, + DRM_DRAWABLE_CLIPRECTS } drm_drawable_info_type_t; struct drm_update_draw { -- cgit v1.2.3 From 0b27c02a7f1c697694f2ad6d6517e7dbf9ecfa39 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Fri, 18 Mar 2016 12:34:59 -0700 Subject: drm: Add an encoder and connector type enum for DPI. Right now exynos is exposing DPI as a TMDS encoder and VGA connector, which seems rather misleading. This isn't just an internal detail, since xrandr actually exposes "VGA" as the output name. Define some new enums so that vc4's DPI can have a more informative name. I considered other names for the connector as well. For VC4, the Adafruit DPI kippah takes the 28 GPIO pins and routes them to a standard-ish 40-pin FPC connector, but "40-pin FPC" doesn't uniquely identify an ordering of pins (apparently some other orderings exist), doesn't explain things as well for the user (who, if anything, knows their product is a DPI kippah/panel combo), and actually doesn't have to exist (one could connect the 28 GPIOs directly to something else). Simply "DPI" seems like a good compromise name to distinguish from the HDMI, DSI, and TV connectors . Signed-off-by: Eric Anholt Reviewed-by: Daniel Vetter --- include/uapi/drm/drm_mode.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h index c0217434d28d..c10ab61bbc44 100644 --- a/include/uapi/drm/drm_mode.h +++ b/include/uapi/drm/drm_mode.h @@ -202,6 +202,7 @@ struct drm_mode_get_plane_res { #define DRM_MODE_ENCODER_VIRTUAL 5 #define DRM_MODE_ENCODER_DSI 6 #define DRM_MODE_ENCODER_DPMST 7 +#define DRM_MODE_ENCODER_DPI 8 struct drm_mode_get_encoder { __u32 encoder_id; @@ -241,6 +242,7 @@ struct drm_mode_get_encoder { #define DRM_MODE_CONNECTOR_eDP 14 #define DRM_MODE_CONNECTOR_VIRTUAL 15 #define DRM_MODE_CONNECTOR_DSI 16 +#define DRM_MODE_CONNECTOR_DPI 17 struct drm_mode_get_connector { -- cgit v1.2.3 From 2c5ff1f9a6240d7d2d0928021cb76e421d6aacaf Mon Sep 17 00:00:00 2001 From: Peter Meerwald-Stadler Date: Sun, 20 Mar 2016 16:20:22 +0100 Subject: iio: Add modifier for UV light Signed-off-by: Peter Meerwald-Stadler Signed-off-by: Jonathan Cameron --- include/uapi/linux/iio/types.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h index c077617f3304..9337eceb9f9d 100644 --- a/include/uapi/linux/iio/types.h +++ b/include/uapi/linux/iio/types.h @@ -77,6 +77,7 @@ enum iio_modifier { IIO_MOD_Q, IIO_MOD_CO2, IIO_MOD_VOC, + IIO_MOD_LIGHT_UV, }; enum iio_event_type { -- cgit v1.2.3 From d409404cf6e201c2980c7148484c350f33a7912e Mon Sep 17 00:00:00 2001 From: Peter Meerwald-Stadler Date: Sun, 20 Mar 2016 16:20:23 +0100 Subject: iio: Add channel for UV index UV index indicating strength of sunburn-producing ultraviolet (UV) radiation Signed-off-by: Peter Meerwald-Stadler Signed-off-by: Jonathan Cameron --- include/uapi/linux/iio/types.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h index 9337eceb9f9d..b0916fc72cce 100644 --- a/include/uapi/linux/iio/types.h +++ b/include/uapi/linux/iio/types.h @@ -38,6 +38,7 @@ enum iio_chan_type { IIO_CONCENTRATION, IIO_RESISTANCE, IIO_PH, + IIO_UVINDEX, }; enum iio_modifier { -- cgit v1.2.3 From e28b124564e648d933337a0708dae1323c518af7 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Sun, 3 Apr 2016 20:44:44 +0200 Subject: i2c: guarantee that I2C_M_RD will be 0x0001 forever There is code out there in user space and kernel space which relies on I2C_M_RD being bit 0 to simplify their bit operations. Add a comment to make sure this will never break. Do proper sorting of the defines while we are here. Reviewed-by: Andy Shevchenko Signed-off-by: Wolfram Sang --- include/uapi/linux/i2c.h | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'include/uapi') diff --git a/include/uapi/linux/i2c.h b/include/uapi/linux/i2c.h index b0a7dd61eb35..adcbef4bff61 100644 --- a/include/uapi/linux/i2c.h +++ b/include/uapi/linux/i2c.h @@ -68,14 +68,15 @@ struct i2c_msg { __u16 addr; /* slave address */ __u16 flags; -#define I2C_M_TEN 0x0010 /* this is a ten bit chip address */ #define I2C_M_RD 0x0001 /* read data, from slave to master */ -#define I2C_M_STOP 0x8000 /* if I2C_FUNC_PROTOCOL_MANGLING */ -#define I2C_M_NOSTART 0x4000 /* if I2C_FUNC_NOSTART */ -#define I2C_M_REV_DIR_ADDR 0x2000 /* if I2C_FUNC_PROTOCOL_MANGLING */ -#define I2C_M_IGNORE_NAK 0x1000 /* if I2C_FUNC_PROTOCOL_MANGLING */ -#define I2C_M_NO_RD_ACK 0x0800 /* if I2C_FUNC_PROTOCOL_MANGLING */ + /* I2C_M_RD is guaranteed to be 0x0001! */ +#define I2C_M_TEN 0x0010 /* this is a ten bit chip address */ #define I2C_M_RECV_LEN 0x0400 /* length will be first received byte */ +#define I2C_M_NO_RD_ACK 0x0800 /* if I2C_FUNC_PROTOCOL_MANGLING */ +#define I2C_M_IGNORE_NAK 0x1000 /* if I2C_FUNC_PROTOCOL_MANGLING */ +#define I2C_M_REV_DIR_ADDR 0x2000 /* if I2C_FUNC_PROTOCOL_MANGLING */ +#define I2C_M_NOSTART 0x4000 /* if I2C_FUNC_NOSTART */ +#define I2C_M_STOP 0x8000 /* if I2C_FUNC_PROTOCOL_MANGLING */ __u16 len; /* msg length */ __u8 *buf; /* pointer to msg data */ }; -- cgit v1.2.3 From baa51277cf5dc844089ea2f6e0f78b1c5ca665d8 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 5 Apr 2016 17:40:52 -0700 Subject: libnvdimm, test: add mock SMART data payload Provide simulated SMART data to enable the ndctl implementation of SMART data retrieval and parsing. The payload is defined here, "Section 4.1 SMART and Health Info (Function Index 1)": http://pmem.io/documents/NVDIMM_DSM_Interface_Example.pdf Signed-off-by: Dan Williams --- include/uapi/linux/ndctl.h | 36 +++++++++++++++++++++++++++++++++++- 1 file changed, 35 insertions(+), 1 deletion(-) (limited to 'include/uapi') diff --git a/include/uapi/linux/ndctl.h b/include/uapi/linux/ndctl.h index 7cc28ab05b87..59c61e018a86 100644 --- a/include/uapi/linux/ndctl.h +++ b/include/uapi/linux/ndctl.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2014-2015, Intel Corporation. + * Copyright (c) 2014-2016, Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU Lesser General Public License, @@ -20,11 +20,45 @@ struct nd_cmd_smart { __u8 data[128]; } __packed; +#define ND_SMART_HEALTH_VALID (1 << 0) +#define ND_SMART_TEMP_VALID (1 << 1) +#define ND_SMART_SPARES_VALID (1 << 2) +#define ND_SMART_ALARM_VALID (1 << 3) +#define ND_SMART_USED_VALID (1 << 4) +#define ND_SMART_SHUTDOWN_VALID (1 << 5) +#define ND_SMART_VENDOR_VALID (1 << 6) +#define ND_SMART_TEMP_TRIP (1 << 0) +#define ND_SMART_SPARE_TRIP (1 << 1) +#define ND_SMART_NON_CRITICAL_HEALTH (1 << 0) +#define ND_SMART_CRITICAL_HEALTH (1 << 1) +#define ND_SMART_FATAL_HEALTH (1 << 2) + +struct nd_smart_payload { + __u32 flags; + __u8 reserved0[4]; + __u8 health; + __u16 temperature; + __u8 spares; + __u8 alarm_flags; + __u8 life_used; + __u8 shutdown_state; + __u8 reserved1; + __u32 vendor_size; + __u8 vendor_data[108]; +} __packed; + struct nd_cmd_smart_threshold { __u32 status; __u8 data[8]; } __packed; +struct nd_smart_threshold_payload { + __u16 alarm_control; + __u16 temperature; + __u8 spares; + __u8 reserved[3]; +} __packed; + struct nd_cmd_dimm_flags { __u32 status; __u32 flags; -- cgit v1.2.3 From ddbb41148724367394d0880c516bfaeed127b52e Mon Sep 17 00:00:00 2001 From: Mat Martineau Date: Tue, 12 Apr 2016 19:54:58 +0100 Subject: KEYS: Add KEYCTL_DH_COMPUTE command This adds userspace access to Diffie-Hellman computations through a new keyctl() syscall command to calculate shared secrets or public keys using input parameters stored in the keyring. Input key ids are provided in a struct due to the current 5-arg limit for the keyctl syscall. Only user keys are supported in order to avoid exposing the content of logon or encrypted keys. The output is written to the provided buffer, based on the assumption that the values are only needed in userspace. Future support for other types of key derivation would involve a new command, like KEYCTL_ECDH_COMPUTE. Once Diffie-Hellman support is included in the crypto API, this code can be converted to use the crypto API to take advantage of possible hardware acceleration and reduce redundant code. Signed-off-by: Mat Martineau Signed-off-by: David Howells --- include/uapi/linux/keyctl.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/keyctl.h b/include/uapi/linux/keyctl.h index 840cb990abe2..86eddd6241f3 100644 --- a/include/uapi/linux/keyctl.h +++ b/include/uapi/linux/keyctl.h @@ -12,6 +12,8 @@ #ifndef _LINUX_KEYCTL_H #define _LINUX_KEYCTL_H +#include + /* special process keyring shortcut IDs */ #define KEY_SPEC_THREAD_KEYRING -1 /* - key ID for thread-specific keyring */ #define KEY_SPEC_PROCESS_KEYRING -2 /* - key ID for process-specific keyring */ @@ -57,5 +59,13 @@ #define KEYCTL_INSTANTIATE_IOV 20 /* instantiate a partially constructed key */ #define KEYCTL_INVALIDATE 21 /* invalidate a key */ #define KEYCTL_GET_PERSISTENT 22 /* get a user's persistent keyring */ +#define KEYCTL_DH_COMPUTE 23 /* Compute Diffie-Hellman values */ + +/* keyctl structures */ +struct keyctl_dh_params { + __s32 private; + __s32 prime; + __s32 base; +}; #endif /* _LINUX_KEYCTL_H */ -- cgit v1.2.3 From e10f9a42e9e822a8439dd4aaaccfd22365ee3975 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Thu, 10 Mar 2016 16:09:08 +0100 Subject: USB: add descriptors from USB Power Delivery spec Adding the descriptors of chapter 9.2 of the Power Delivery spec. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman --- include/uapi/linux/usb/ch9.h | 98 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 98 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/usb/ch9.h b/include/uapi/linux/usb/ch9.h index d5ce71607972..df1beca31bec 100644 --- a/include/uapi/linux/usb/ch9.h +++ b/include/uapi/linux/usb/ch9.h @@ -913,6 +913,104 @@ struct usb_ssp_cap_descriptor { #define USB_SSP_SUBLINK_SPEED_LSM (0xff << 16) /* Lanespeed mantissa */ } __attribute__((packed)); +/* + * USB Power Delivery Capability Descriptor: + * Defines capabilities for PD + */ +/* Defines the various PD Capabilities of this device */ +#define USB_PD_POWER_DELIVERY_CAPABILITY 0x06 +/* Provides information on each battery supported by the device */ +#define USB_PD_BATTERY_INFO_CAPABILITY 0x07 +/* The Consumer characteristics of a Port on the device */ +#define USB_PD_PD_CONSUMER_PORT_CAPABILITY 0x08 +/* The provider characteristics of a Port on the device */ +#define USB_PD_PD_PROVIDER_PORT_CAPABILITY 0x09 + +struct usb_pd_cap_descriptor { + __u8 bLength; + __u8 bDescriptorType; + __u8 bDevCapabilityType; /* set to USB_PD_POWER_DELIVERY_CAPABILITY */ + __u8 bReserved; + __le32 bmAttributes; +#define USB_PD_CAP_BATTERY_CHARGING (1 << 1) /* supports Battery Charging specification */ +#define USB_PD_CAP_USB_PD (1 << 2) /* supports USB Power Delivery specification */ +#define USB_PD_CAP_PROVIDER (1 << 3) /* can provide power */ +#define USB_PD_CAP_CONSUMER (1 << 4) /* can consume power */ +#define USB_PD_CAP_CHARGING_POLICY (1 << 5) /* supports CHARGING_POLICY feature */ +#define USB_PD_CAP_TYPE_C_CURRENT (1 << 6) /* supports power capabilities defined in the USB Type-C Specification */ + +#define USB_PD_CAP_PWR_AC (1 << 8) +#define USB_PD_CAP_PWR_BAT (1 << 9) +#define USB_PD_CAP_PWR_USE_V_BUS (1 << 14) + + __le16 bmProviderPorts; /* Bit zero refers to the UFP of the device */ + __le16 bmConsumerPorts; + __le16 bcdBCVersion; + __le16 bcdPDVersion; + __le16 bcdUSBTypeCVersion; +} __attribute__((packed)); + +struct usb_pd_cap_battery_info_descriptor { + __u8 bLength; + __u8 bDescriptorType; + __u8 bDevCapabilityType; + /* Index of string descriptor shall contain the user friendly name for this battery */ + __u8 iBattery; + /* Index of string descriptor shall contain the Serial Number String for this battery */ + __u8 iSerial; + __u8 iManufacturer; + __u8 bBatteryId; /* uniquely identifies this battery in status Messages */ + __u8 bReserved; + /* + * Shall contain the Battery Charge value above which this + * battery is considered to be fully charged but not necessarily + * “topped off.” + */ + __le32 dwChargedThreshold; /* in mWh */ + /* + * Shall contain the minimum charge level of this battery such + * that above this threshold, a device can be assured of being + * able to power up successfully (see Battery Charging 1.2). + */ + __le32 dwWeakThreshold; /* in mWh */ + __le32 dwBatteryDesignCapacity; /* in mWh */ + __le32 dwBatteryLastFullchargeCapacity; /* in mWh */ +} __attribute__((packed)); + +struct usb_pd_cap_consumer_port_descriptor { + __u8 bLength; + __u8 bDescriptorType; + __u8 bDevCapabilityType; + __u8 bReserved; + __u8 bmCapabilities; +/* port will oerate under: */ +#define USB_PD_CAP_CONSUMER_BC (1 << 0) /* BC */ +#define USB_PD_CAP_CONSUMER_PD (1 << 1) /* PD */ +#define USB_PD_CAP_CONSUMER_TYPE_C (1 << 2) /* USB Type-C Current */ + __le16 wMinVoltage; /* in 50mV units */ + __le16 wMaxVoltage; /* in 50mV units */ + __u16 wReserved; + __le32 dwMaxOperatingPower; /* in 10 mW - operating at steady state */ + __le32 dwMaxPeakPower; /* in 10mW units - operating at peak power */ + __le32 dwMaxPeakPowerTime; /* in 100ms units - duration of peak */ +#define USB_PD_CAP_CONSUMER_UNKNOWN_PEAK_POWER_TIME 0xffff +} __attribute__((packed)); + +struct usb_pd_cap_provider_port_descriptor { + __u8 bLength; + __u8 bDescriptorType; + __u8 bDevCapabilityType; + __u8 bReserved1; + __u8 bmCapabilities; +/* port will oerate under: */ +#define USB_PD_CAP_PROVIDER_BC (1 << 0) /* BC */ +#define USB_PD_CAP_PROVIDER_PD (1 << 1) /* PD */ +#define USB_PD_CAP_PROVIDER_TYPE_C (1 << 2) /* USB Type-C Current */ + __u8 bNumOfPDObjects; + __u8 bReserved2; + __le32 wPowerDataObject[]; +} __attribute__((packed)); + /* * Precision time measurement capability descriptor: advertised by devices and * hubs that support PTM -- cgit v1.2.3 From e1669f4a425c92c186e33a101e8fa84195fa2744 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Thu, 10 Mar 2016 16:09:09 +0100 Subject: USB: PD: define specific requests This takes the definitions of requests from chapter 9.3.1 of the USB Power Delivery spec. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman --- include/uapi/linux/usb/ch9.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/usb/ch9.h b/include/uapi/linux/usb/ch9.h index df1beca31bec..535fce085459 100644 --- a/include/uapi/linux/usb/ch9.h +++ b/include/uapi/linux/usb/ch9.h @@ -105,6 +105,13 @@ #define USB_REQ_LOOPBACK_DATA_READ 0x16 #define USB_REQ_SET_INTERFACE_DS 0x17 +/* specific requests for USB Power Delivery */ +#define USB_REQ_GET_PARTNER_PDO 20 +#define USB_REQ_GET_BATTERY_STATUS 21 +#define USB_REQ_SET_PDO 22 +#define USB_REQ_GET_VDM 23 +#define USB_REQ_SEND_VDM 24 + /* The Link Power Management (LPM) ECN defines USB_REQ_TEST_AND_SET command, * used by hubs to put ports into a new L1 suspend state, except that it * forgot to define its number ... -- cgit v1.2.3 From 351e67ab5c0582e833c8d67dccb034348879cf25 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Thu, 10 Mar 2016 16:09:10 +0100 Subject: USB: PD: additional feature selectors This adds the feature selectors from Table 9-8 Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman --- include/uapi/linux/usb/ch9.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/usb/ch9.h b/include/uapi/linux/usb/ch9.h index 535fce085459..a8acc24765fe 100644 --- a/include/uapi/linux/usb/ch9.h +++ b/include/uapi/linux/usb/ch9.h @@ -172,6 +172,22 @@ #define USB_DEV_STAT_U2_ENABLED 3 /* transition into U2 state */ #define USB_DEV_STAT_LTM_ENABLED 4 /* Latency tolerance messages */ +/* + * Feature selectors from Table 9-8 USB Power Delivery spec + */ +#define USB_DEVICE_BATTERY_WAKE_MASK 40 +#define USB_DEVICE_OS_IS_PD_AWARE 41 +#define USB_DEVICE_POLICY_MODE 42 +#define USB_PORT_PR_SWAP 43 +#define USB_PORT_GOTO_MIN 44 +#define USB_PORT_RETURN_POWER 45 +#define USB_PORT_ACCEPT_PD_REQUEST 46 +#define USB_PORT_REJECT_PD_REQUEST 47 +#define USB_PORT_PORT_PD_RESET 48 +#define USB_PORT_C_PORT_PD_CHANGE 49 +#define USB_PORT_CABLE_PD_RESET 50 +#define USB_DEVICE_CHARGING_POLICY 54 + /** * struct usb_ctrlrequest - SETUP data for a USB device control request * @bRequestType: matches the USB bmRequestType field -- cgit v1.2.3 From b84fff5afb16627a8973256992f3951ac3e90d84 Mon Sep 17 00:00:00 2001 From: Mengdong Lin Date: Tue, 19 Apr 2016 13:12:43 +0800 Subject: ASoC: topology: Set the link ID when creating a FE DAI link Topology will set the link's generic id when creating a FE link. Device drivers can check the id for link specific initialization. Signed-off-by: Mengdong Lin Signed-off-by: Mark Brown --- include/uapi/sound/asoc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/uapi') diff --git a/include/uapi/sound/asoc.h b/include/uapi/sound/asoc.h index db86b447b515..e4701a3c6331 100644 --- a/include/uapi/sound/asoc.h +++ b/include/uapi/sound/asoc.h @@ -423,7 +423,7 @@ struct snd_soc_tplg_pcm { __le32 size; /* in bytes of this structure */ char pcm_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; char dai_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; - __le32 pcm_id; /* unique ID - used to match */ + __le32 pcm_id; /* unique ID - used to match with DAI link */ __le32 dai_id; /* unique ID - used to match */ __le32 playback; /* supports playback mode */ __le32 capture; /* supports capture mode */ -- cgit v1.2.3 From 34ce71a96dcba24c71b07f1b087bd179b885784d Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Sat, 23 Apr 2016 02:58:05 +0200 Subject: ALSA: timer: remove legacy rtctimer There are no users of rtctimer left. Remove its code as this is the in-kernel user of the legacy PC RTC driver that will hopefully be removed at some point. Signed-off-by: Alexandre Belloni Signed-off-by: Takashi Iwai --- include/uapi/sound/asound.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/uapi') diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h index 67bf49d8c944..609cadb8739d 100644 --- a/include/uapi/sound/asound.h +++ b/include/uapi/sound/asound.h @@ -672,7 +672,7 @@ enum { /* global timers (device member) */ #define SNDRV_TIMER_GLOBAL_SYSTEM 0 -#define SNDRV_TIMER_GLOBAL_RTC 1 +#define SNDRV_TIMER_GLOBAL_RTC 1 /* unused */ #define SNDRV_TIMER_GLOBAL_HPET 2 #define SNDRV_TIMER_GLOBAL_HRTIMER 3 -- cgit v1.2.3 From 57c7598711b820b4253bcee94ec750ebc1c63af6 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 22 Apr 2016 06:06:58 -0300 Subject: [media] videodev2.h: remove 'experimental' annotations Most of what is marked as 'experimental' has been around for years. Time to drop that annotation. The only remaining 'experimental' bits of the API are the debug ioctls and structs: these should remain experimental since the only application that should use this is v4l2-dbg. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/uapi/linux/videodev2.h | 38 ++++++++++---------------------------- 1 file changed, 10 insertions(+), 28 deletions(-) (limited to 'include/uapi') diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index e895975c5b0e..8f951917be74 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -138,10 +138,7 @@ enum v4l2_buf_type { V4L2_BUF_TYPE_VBI_OUTPUT = 5, V4L2_BUF_TYPE_SLICED_VBI_CAPTURE = 6, V4L2_BUF_TYPE_SLICED_VBI_OUTPUT = 7, -#if 1 - /* Experimental */ V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY = 8, -#endif V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE = 9, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE = 10, V4L2_BUF_TYPE_SDR_CAPTURE = 11, @@ -657,8 +654,7 @@ struct v4l2_fmtdesc { #define V4L2_FMT_FLAG_COMPRESSED 0x0001 #define V4L2_FMT_FLAG_EMULATED 0x0002 -#if 1 - /* Experimental Frame Size and frame rate enumeration */ + /* Frame Size and frame rate enumeration */ /* * F R A M E S I Z E E N U M E R A T I O N */ @@ -724,7 +720,6 @@ struct v4l2_frmivalenum { __u32 reserved[2]; /* Reserved space for future use */ }; -#endif /* * T I M E C O D E @@ -1728,8 +1723,6 @@ struct v4l2_audioout { /* * M P E G S E R V I C E S - * - * NOTE: EXPERIMENTAL API */ #if 1 #define V4L2_ENC_IDX_FRAME_I (0) @@ -2259,46 +2252,35 @@ struct v4l2_create_buffers { #define VIDIOC_ENCODER_CMD _IOWR('V', 77, struct v4l2_encoder_cmd) #define VIDIOC_TRY_ENCODER_CMD _IOWR('V', 78, struct v4l2_encoder_cmd) -/* Experimental, meant for debugging, testing and internal use. - Only implemented if CONFIG_VIDEO_ADV_DEBUG is defined. - You must be root to use these ioctls. Never use these in applications! */ +/* + * Experimental, meant for debugging, testing and internal use. + * Only implemented if CONFIG_VIDEO_ADV_DEBUG is defined. + * You must be root to use these ioctls. Never use these in applications! + */ #define VIDIOC_DBG_S_REGISTER _IOW('V', 79, struct v4l2_dbg_register) #define VIDIOC_DBG_G_REGISTER _IOWR('V', 80, struct v4l2_dbg_register) #define VIDIOC_S_HW_FREQ_SEEK _IOW('V', 82, struct v4l2_hw_freq_seek) - #define VIDIOC_S_DV_TIMINGS _IOWR('V', 87, struct v4l2_dv_timings) #define VIDIOC_G_DV_TIMINGS _IOWR('V', 88, struct v4l2_dv_timings) #define VIDIOC_DQEVENT _IOR('V', 89, struct v4l2_event) #define VIDIOC_SUBSCRIBE_EVENT _IOW('V', 90, struct v4l2_event_subscription) #define VIDIOC_UNSUBSCRIBE_EVENT _IOW('V', 91, struct v4l2_event_subscription) - -/* Experimental, the below two ioctls may change over the next couple of kernel - versions */ #define VIDIOC_CREATE_BUFS _IOWR('V', 92, struct v4l2_create_buffers) #define VIDIOC_PREPARE_BUF _IOWR('V', 93, struct v4l2_buffer) - -/* Experimental selection API */ #define VIDIOC_G_SELECTION _IOWR('V', 94, struct v4l2_selection) #define VIDIOC_S_SELECTION _IOWR('V', 95, struct v4l2_selection) - -/* Experimental, these two ioctls may change over the next couple of kernel - versions. */ #define VIDIOC_DECODER_CMD _IOWR('V', 96, struct v4l2_decoder_cmd) #define VIDIOC_TRY_DECODER_CMD _IOWR('V', 97, struct v4l2_decoder_cmd) - -/* Experimental, these three ioctls may change over the next couple of kernel - versions. */ #define VIDIOC_ENUM_DV_TIMINGS _IOWR('V', 98, struct v4l2_enum_dv_timings) #define VIDIOC_QUERY_DV_TIMINGS _IOR('V', 99, struct v4l2_dv_timings) #define VIDIOC_DV_TIMINGS_CAP _IOWR('V', 100, struct v4l2_dv_timings_cap) - -/* Experimental, this ioctl may change over the next couple of kernel - versions. */ #define VIDIOC_ENUM_FREQ_BANDS _IOWR('V', 101, struct v4l2_frequency_band) -/* Experimental, meant for debugging, testing and internal use. - Never use these in applications! */ +/* + * Experimental, meant for debugging, testing and internal use. + * Never use this in applications! + */ #define VIDIOC_DBG_G_CHIP_INFO _IOWR('V', 102, struct v4l2_dbg_chip_info) #define VIDIOC_QUERY_EXT_CTRL _IOWR('V', 103, struct v4l2_query_ext_ctrl) -- cgit v1.2.3 From f7a3e1dc8f2d800c0c796d0704cd6570e583e8e0 Mon Sep 17 00:00:00 2001 From: Emil Velikov Date: Thu, 21 Apr 2016 21:17:27 +0100 Subject: drm/qxl: remove XXX comment from the UAPI header One cannot rename the struct at this point, so might as well remove the comment. Cc: Gerd Hoffmann Cc: Dave Airlie Signed-off-by: Emil Velikov Signed-off-by: Dave Airlie --- include/uapi/drm/qxl_drm.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/uapi') diff --git a/include/uapi/drm/qxl_drm.h b/include/uapi/drm/qxl_drm.h index 4d1e32640463..826615d8e180 100644 --- a/include/uapi/drm/qxl_drm.h +++ b/include/uapi/drm/qxl_drm.h @@ -84,7 +84,6 @@ struct drm_qxl_command { __u32 pad; }; -/* XXX: call it drm_qxl_commands? */ struct drm_qxl_execbuffer { __u32 flags; /* for future use */ __u32 commands_num; -- cgit v1.2.3 From 33f0fca6b4277eafe4d5dec2e5806c9a91074909 Mon Sep 17 00:00:00 2001 From: Emil Velikov Date: Thu, 21 Apr 2016 21:17:32 +0100 Subject: drm/sis: add missing include drm.h for the UAPI header Signed-off-by: Emil Velikov Signed-off-by: Dave Airlie --- include/uapi/drm/sis_drm.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/drm/sis_drm.h b/include/uapi/drm/sis_drm.h index 374858cdcdaa..a20d88bc4970 100644 --- a/include/uapi/drm/sis_drm.h +++ b/include/uapi/drm/sis_drm.h @@ -27,6 +27,8 @@ #ifndef __SIS_DRM_H__ #define __SIS_DRM_H__ +#include "drm.h" + /* SiS specific ioctls */ #define NOT_USED_0_3 #define DRM_SIS_FB_ALLOC 0x04 -- cgit v1.2.3 From 6b526ed70cf189660d009ea6f17af77a9cca0f38 Mon Sep 17 00:00:00 2001 From: Anand Jain Date: Sat, 13 Feb 2016 10:01:39 +0800 Subject: btrfs: introduce device delete by devid This introduces new ioctl BTRFS_IOC_RM_DEV_V2, which uses enhanced struct btrfs_ioctl_vol_args_v2 to carry devid as an user argument. The patch won't delete the old ioctl interface and so kernel remains backward compatible with user land progs. Test case/script: echo "0 $(blockdev --getsz /dev/sdf) linear /dev/sdf 0" | dmsetup create bad_disk mkfs.btrfs -f -d raid1 -m raid1 /dev/sdd /dev/sde /dev/mapper/bad_disk mount /dev/sdd /btrfs dmsetup suspend bad_disk echo "0 $(blockdev --getsz /dev/sdf) error /dev/sdf 0" | dmsetup load bad_disk dmsetup resume bad_disk echo "bad disk failed. now deleting/replacing" btrfs dev del 3 /btrfs echo $? btrfs fi show /btrfs umount /btrfs btrfs-show-super /dev/sdd | egrep num_device dmsetup remove bad_disk wipefs -a /dev/sdf Signed-off-by: Anand Jain Reported-by: Martin [ adjust messages, s/disk/device/ ] Signed-off-by: David Sterba --- include/uapi/linux/btrfs.h | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'include/uapi') diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index dea893199257..396a4efca775 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -36,6 +36,13 @@ struct btrfs_ioctl_vol_args { #define BTRFS_SUBVOL_CREATE_ASYNC (1ULL << 0) #define BTRFS_SUBVOL_RDONLY (1ULL << 1) #define BTRFS_SUBVOL_QGROUP_INHERIT (1ULL << 2) +#define BTRFS_DEVICE_BY_ID (1ULL << 3) +#define BTRFS_VOL_ARG_V2_FLAGS \ + (BTRFS_SUBVOL_CREATE_ASYNC | \ + BTRFS_SUBVOL_RDONLY | \ + BTRFS_SUBVOL_QGROUP_INHERIT | \ + BTRFS_DEVICE_BY_ID) + #define BTRFS_FSID_SIZE 16 #define BTRFS_UUID_SIZE 16 #define BTRFS_UUID_UNPARSED_SIZE 37 @@ -76,7 +83,10 @@ struct btrfs_ioctl_vol_args_v2 { }; __u64 unused[4]; }; - char name[BTRFS_SUBVOL_NAME_MAX + 1]; + union { + char name[BTRFS_SUBVOL_NAME_MAX + 1]; + u64 devid; + }; }; /* @@ -659,5 +669,7 @@ static inline char *btrfs_err_str(enum btrfs_err_code err_code) struct btrfs_ioctl_feature_flags[2]) #define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \ struct btrfs_ioctl_feature_flags[3]) +#define BTRFS_IOC_RM_DEV_V2 _IOW(BTRFS_IOCTL_MAGIC, 58, \ + struct btrfs_ioctl_vol_args_v2) #endif /* _UAPI_LINUX_BTRFS_H */ -- cgit v1.2.3 From 735654ea91a06a30bfe05fdfd09c8895abf6c1bf Mon Sep 17 00:00:00 2001 From: David Sterba Date: Mon, 15 Feb 2016 18:15:21 +0100 Subject: btrfs: rename flags for vol args v2 Rename BTRFS_DEVICE_BY_ID so it's more descriptive that we specify the device by id, it'll be part of the public API. The mask of supported flags is also renamed, only for internal use. The error code for unknown flags is EOPNOTSUPP, fixed. Reviewed-by: Anand Jain Signed-off-by: David Sterba --- include/uapi/linux/btrfs.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'include/uapi') diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index 396a4efca775..3975e683af72 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -36,12 +36,13 @@ struct btrfs_ioctl_vol_args { #define BTRFS_SUBVOL_CREATE_ASYNC (1ULL << 0) #define BTRFS_SUBVOL_RDONLY (1ULL << 1) #define BTRFS_SUBVOL_QGROUP_INHERIT (1ULL << 2) -#define BTRFS_DEVICE_BY_ID (1ULL << 3) -#define BTRFS_VOL_ARG_V2_FLAGS \ +#define BTRFS_DEVICE_SPEC_BY_ID (1ULL << 3) + +#define BTRFS_VOL_ARG_V2_FLAGS_SUPPORTED \ (BTRFS_SUBVOL_CREATE_ASYNC | \ BTRFS_SUBVOL_RDONLY | \ BTRFS_SUBVOL_QGROUP_INHERIT | \ - BTRFS_DEVICE_BY_ID) + BTRFS_DEVICE_SPEC_BY_ID) #define BTRFS_FSID_SIZE 16 #define BTRFS_UUID_SIZE 16 -- cgit v1.2.3 From d4ae133b2d195d88cf5394072724adfa6ccdd64b Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Fri, 1 Apr 2016 16:14:23 -0400 Subject: btrfs: uapi/linux/btrfs.h migration, move BTRFS_LABEL_SIZE BTRFS_LABEL_SIZE is required to define the BTRFS_IOC_GET_FSLABEL and BTRFS_IOC_SET_FSLABEL ioctls. Signed-off-by: Jeff Mahoney Reviewed-by: Liu Bo Reviewed-by: Josef Bacik Signed-off-by: David Sterba --- include/uapi/linux/btrfs.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index dea893199257..11eee3439994 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -23,6 +23,7 @@ #define BTRFS_IOCTL_MAGIC 0x94 #define BTRFS_VOL_NAME_MAX 255 +#define BTRFS_LABEL_SIZE 256 /* this should be 4k */ #define BTRFS_PATH_NAME_MAX 4087 -- cgit v1.2.3 From 83288b60bf6668933689078973136e0c9d387b38 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Fri, 1 Apr 2016 16:14:24 -0400 Subject: btrfs: uapi/linux/btrfs.h migration, qgroup limit flags The BTRFS_QGROUP_LIMIT_* flags are required to tell the kernel which fields are valid when using the BTRFS_IOC_QGROUP_LIMIT ioctl. Signed-off-by: Jeff Mahoney Reviewed-by: Liu Bo Reviewed-by: Josef Bacik Signed-off-by: David Sterba --- include/uapi/linux/btrfs.h | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) (limited to 'include/uapi') diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index 11eee3439994..9651af3c46a1 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -41,7 +41,19 @@ struct btrfs_ioctl_vol_args { #define BTRFS_UUID_SIZE 16 #define BTRFS_UUID_UNPARSED_SIZE 37 -#define BTRFS_QGROUP_INHERIT_SET_LIMITS (1ULL << 0) +/* + * flags definition for qgroup limits + * + * Used by: + * struct btrfs_qgroup_limit.flags + * struct btrfs_qgroup_limit_item.flags + */ +#define BTRFS_QGROUP_LIMIT_MAX_RFER (1ULL << 0) +#define BTRFS_QGROUP_LIMIT_MAX_EXCL (1ULL << 1) +#define BTRFS_QGROUP_LIMIT_RSV_RFER (1ULL << 2) +#define BTRFS_QGROUP_LIMIT_RSV_EXCL (1ULL << 3) +#define BTRFS_QGROUP_LIMIT_RFER_CMPR (1ULL << 4) +#define BTRFS_QGROUP_LIMIT_EXCL_CMPR (1ULL << 5) struct btrfs_qgroup_limit { __u64 flags; @@ -51,6 +63,14 @@ struct btrfs_qgroup_limit { __u64 rsv_excl; }; +/* + * flags definition for qgroup inheritance + * + * Used by: + * struct btrfs_qgroup_inherit.flags + */ +#define BTRFS_QGROUP_INHERIT_SET_LIMITS (1ULL << 0) + struct btrfs_qgroup_inherit { __u64 flags; __u64 num_qgroups; -- cgit v1.2.3 From 884f6eca59475bc3cad5c22360523a1261bd5597 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Fri, 1 Apr 2016 16:14:25 -0400 Subject: btrfs: uapi/linux/btrfs.h migration, document subvol flags Signed-off-by: Jeff Mahoney Reviewed-by: Liu Bo Reviewed-by: Josef Bacik Signed-off-by: David Sterba --- include/uapi/linux/btrfs.h | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) (limited to 'include/uapi') diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index 9651af3c46a1..0316e23b32cc 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -34,9 +34,6 @@ struct btrfs_ioctl_vol_args { #define BTRFS_DEVICE_PATH_NAME_MAX 1024 -#define BTRFS_SUBVOL_CREATE_ASYNC (1ULL << 0) -#define BTRFS_SUBVOL_RDONLY (1ULL << 1) -#define BTRFS_SUBVOL_QGROUP_INHERIT (1ULL << 2) #define BTRFS_FSID_SIZE 16 #define BTRFS_UUID_SIZE 16 #define BTRFS_UUID_UNPARSED_SIZE 37 @@ -85,6 +82,20 @@ struct btrfs_ioctl_qgroup_limit_args { struct btrfs_qgroup_limit lim; }; +/* + * flags for subvolumes + * + * Used by: + * struct btrfs_ioctl_vol_args_v2.flags + * + * BTRFS_SUBVOL_RDONLY is also provided/consumed by the following ioctls: + * - BTRFS_IOC_SUBVOL_GETFLAGS + * - BTRFS_IOC_SUBVOL_SETFLAGS + */ +#define BTRFS_SUBVOL_CREATE_ASYNC (1ULL << 0) +#define BTRFS_SUBVOL_RDONLY (1ULL << 1) +#define BTRFS_SUBVOL_QGROUP_INHERIT (1ULL << 2) + #define BTRFS_SUBVOL_NAME_MAX 4039 struct btrfs_ioctl_vol_args_v2 { __s64 fd; -- cgit v1.2.3 From 18db9ac644badcb948a623791e599672edade6dd Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Fri, 1 Apr 2016 16:14:26 -0400 Subject: btrfs: uapi/linux/btrfs.h migration, move feature flags The compat/compat_ro/incompat feature flags are used by the feature set/get ioctls. Signed-off-by: Jeff Mahoney Reviewed-by: Liu Bo Reviewed-by: Josef Bacik Signed-off-by: David Sterba --- include/uapi/linux/btrfs.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index 0316e23b32cc..de98717386ee 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -222,6 +222,37 @@ struct btrfs_ioctl_fs_info_args { __u64 reserved[122]; /* pad to 1k */ }; +/* + * feature flags + * + * Used by: + * struct btrfs_ioctl_feature_flags + */ +#define BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE (1ULL << 0) + +#define BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF (1ULL << 0) +#define BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL (1ULL << 1) +#define BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS (1ULL << 2) +#define BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO (1ULL << 3) +/* + * some patches floated around with a second compression method + * lets save that incompat here for when they do get in + * Note we don't actually support it, we're just reserving the + * number + */ +#define BTRFS_FEATURE_INCOMPAT_COMPRESS_LZOv2 (1ULL << 4) + +/* + * older kernels tried to do bigger metadata blocks, but the + * code was pretty buggy. Lets not let them try anymore. + */ +#define BTRFS_FEATURE_INCOMPAT_BIG_METADATA (1ULL << 5) + +#define BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF (1ULL << 6) +#define BTRFS_FEATURE_INCOMPAT_RAID56 (1ULL << 7) +#define BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA (1ULL << 8) +#define BTRFS_FEATURE_INCOMPAT_NO_HOLES (1ULL << 9) + struct btrfs_ioctl_feature_flags { __u64 compat_flags; __u64 compat_ro_flags; -- cgit v1.2.3 From 04cd01dffbf9be14ccc51595280c8dc8c318a9c9 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Fri, 1 Apr 2016 16:14:27 -0400 Subject: btrfs: uapi/linux/btrfs.h migration, move balance flags The BTRFS_BALANCE_* flags are used by struct btrfs_ioctl_balance_args.flags and btrfs_ioctl_balance_args.{data,meta,sys}.flags in the BTRFS_IOC_BALANCE ioctl. Signed-off-by: Jeff Mahoney Reviewed-by: Liu Bo Reviewed-by: Josef Bacik Signed-off-by: David Sterba --- include/uapi/linux/btrfs.h | 64 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index de98717386ee..abae362d4ec7 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -317,6 +317,70 @@ struct btrfs_balance_progress { __u64 completed; /* # of chunks relocated so far */ }; +/* + * flags definition for balance + * + * Restriper's general type filter + * + * Used by: + * btrfs_ioctl_balance_args.flags + * btrfs_balance_control.flags (internal) + */ +#define BTRFS_BALANCE_DATA (1ULL << 0) +#define BTRFS_BALANCE_SYSTEM (1ULL << 1) +#define BTRFS_BALANCE_METADATA (1ULL << 2) + +#define BTRFS_BALANCE_TYPE_MASK (BTRFS_BALANCE_DATA | \ + BTRFS_BALANCE_SYSTEM | \ + BTRFS_BALANCE_METADATA) + +#define BTRFS_BALANCE_FORCE (1ULL << 3) +#define BTRFS_BALANCE_RESUME (1ULL << 4) + +/* + * flags definitions for per-type balance args + * + * Balance filters + * + * Used by: + * struct btrfs_balance_args + */ +#define BTRFS_BALANCE_ARGS_PROFILES (1ULL << 0) +#define BTRFS_BALANCE_ARGS_USAGE (1ULL << 1) +#define BTRFS_BALANCE_ARGS_DEVID (1ULL << 2) +#define BTRFS_BALANCE_ARGS_DRANGE (1ULL << 3) +#define BTRFS_BALANCE_ARGS_VRANGE (1ULL << 4) +#define BTRFS_BALANCE_ARGS_LIMIT (1ULL << 5) +#define BTRFS_BALANCE_ARGS_LIMIT_RANGE (1ULL << 6) +#define BTRFS_BALANCE_ARGS_STRIPES_RANGE (1ULL << 7) +#define BTRFS_BALANCE_ARGS_USAGE_RANGE (1ULL << 10) + +#define BTRFS_BALANCE_ARGS_MASK \ + (BTRFS_BALANCE_ARGS_PROFILES | \ + BTRFS_BALANCE_ARGS_USAGE | \ + BTRFS_BALANCE_ARGS_DEVID | \ + BTRFS_BALANCE_ARGS_DRANGE | \ + BTRFS_BALANCE_ARGS_VRANGE | \ + BTRFS_BALANCE_ARGS_LIMIT | \ + BTRFS_BALANCE_ARGS_LIMIT_RANGE | \ + BTRFS_BALANCE_ARGS_STRIPES_RANGE | \ + BTRFS_BALANCE_ARGS_USAGE_RANGE) + +/* + * Profile changing flags. When SOFT is set we won't relocate chunk if + * it already has the target profile (even though it may be + * half-filled). + */ +#define BTRFS_BALANCE_ARGS_CONVERT (1ULL << 8) +#define BTRFS_BALANCE_ARGS_SOFT (1ULL << 9) + + +/* + * flags definition for balance state + * + * Used by: + * struct btrfs_ioctl_balance_args.state + */ #define BTRFS_BALANCE_STATE_RUNNING (1ULL << 0) #define BTRFS_BALANCE_STATE_PAUSE_REQ (1ULL << 1) #define BTRFS_BALANCE_STATE_CANCEL_REQ (1ULL << 2) -- cgit v1.2.3 From 33ca913349962208e13e894ada99b9ae6e0080ee Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Fri, 1 Apr 2016 16:14:28 -0400 Subject: btrfs: uapi/linux/btrfs.h migration, move struct btrfs_ioctl_defrag_range_args struct btrfs_ioctl_defrag_range_args is used by the BTRFS_IOC_DEFRAG_RANGE ioctl. Signed-off-by: Jeff Mahoney Reviewed-by: Liu Bo Reviewed-by: Josef Bacik Signed-off-by: David Sterba --- include/uapi/linux/btrfs.h | 38 +++++++++++++++++++++++++++++++++++++- 1 file changed, 37 insertions(+), 1 deletion(-) (limited to 'include/uapi') diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index abae362d4ec7..98aff38a70d3 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -474,9 +474,45 @@ struct btrfs_ioctl_clone_range_args { __u64 dest_offset; }; -/* flags for the defrag range ioctl */ +/* + * flags definition for the defrag range ioctl + * + * Used by: + * struct btrfs_ioctl_defrag_range_args.flags + */ #define BTRFS_DEFRAG_RANGE_COMPRESS 1 #define BTRFS_DEFRAG_RANGE_START_IO 2 +struct btrfs_ioctl_defrag_range_args { + /* start of the defrag operation */ + __u64 start; + + /* number of bytes to defrag, use (u64)-1 to say all */ + __u64 len; + + /* + * flags for the operation, which can include turning + * on compression for this one defrag + */ + __u64 flags; + + /* + * any extent bigger than this will be considered + * already defragged. Use 0 to take the kernel default + * Use 1 to say every single extent must be rewritten + */ + __u32 extent_thresh; + + /* + * which compression method to use if turning on compression + * for this defrag operation. If unspecified, zlib will + * be used + */ + __u32 compress_type; + + /* spare for later */ + __u32 unused[4]; +}; + #define BTRFS_SAME_DATA_DIFFERS 1 /* For extent-same ioctl */ -- cgit v1.2.3 From db6711600e27c885aed89751f04e727f3af26715 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Fri, 1 Apr 2016 16:14:29 -0400 Subject: btrfs: uapi/linux/btrfs_tree.h migration, item types and defines The BTRFS_IOC_SEARCH_TREE ioctl returns file system items directly to userspace. In order to decode them, full type information is required. Create a new header, btrfs_tree to contain these since most users won't need them. Signed-off-by: Jeff Mahoney Reviewed-by: Liu Bo Reviewed-by: Josef Bacik Signed-off-by: David Sterba --- include/uapi/linux/btrfs_tree.h | 966 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 966 insertions(+) create mode 100644 include/uapi/linux/btrfs_tree.h (limited to 'include/uapi') diff --git a/include/uapi/linux/btrfs_tree.h b/include/uapi/linux/btrfs_tree.h new file mode 100644 index 000000000000..1e875057d6b2 --- /dev/null +++ b/include/uapi/linux/btrfs_tree.h @@ -0,0 +1,966 @@ +#ifndef _BTRFS_CTREE_H_ +#define _BTRFS_CTREE_H_ + +/* + * This header contains the structure definitions and constants used + * by file system objects that can be retrieved using + * the BTRFS_IOC_SEARCH_TREE ioctl. That means basically anything that + * is needed to describe a leaf node's key or item contents. + */ + +/* holds pointers to all of the tree roots */ +#define BTRFS_ROOT_TREE_OBJECTID 1ULL + +/* stores information about which extents are in use, and reference counts */ +#define BTRFS_EXTENT_TREE_OBJECTID 2ULL + +/* + * chunk tree stores translations from logical -> physical block numbering + * the super block points to the chunk tree + */ +#define BTRFS_CHUNK_TREE_OBJECTID 3ULL + +/* + * stores information about which areas of a given device are in use. + * one per device. The tree of tree roots points to the device tree + */ +#define BTRFS_DEV_TREE_OBJECTID 4ULL + +/* one per subvolume, storing files and directories */ +#define BTRFS_FS_TREE_OBJECTID 5ULL + +/* directory objectid inside the root tree */ +#define BTRFS_ROOT_TREE_DIR_OBJECTID 6ULL + +/* holds checksums of all the data extents */ +#define BTRFS_CSUM_TREE_OBJECTID 7ULL + +/* holds quota configuration and tracking */ +#define BTRFS_QUOTA_TREE_OBJECTID 8ULL + +/* for storing items that use the BTRFS_UUID_KEY* types */ +#define BTRFS_UUID_TREE_OBJECTID 9ULL + +/* tracks free space in block groups. */ +#define BTRFS_FREE_SPACE_TREE_OBJECTID 10ULL + +/* device stats in the device tree */ +#define BTRFS_DEV_STATS_OBJECTID 0ULL + +/* for storing balance parameters in the root tree */ +#define BTRFS_BALANCE_OBJECTID -4ULL + +/* orhpan objectid for tracking unlinked/truncated files */ +#define BTRFS_ORPHAN_OBJECTID -5ULL + +/* does write ahead logging to speed up fsyncs */ +#define BTRFS_TREE_LOG_OBJECTID -6ULL +#define BTRFS_TREE_LOG_FIXUP_OBJECTID -7ULL + +/* for space balancing */ +#define BTRFS_TREE_RELOC_OBJECTID -8ULL +#define BTRFS_DATA_RELOC_TREE_OBJECTID -9ULL + +/* + * extent checksums all have this objectid + * this allows them to share the logging tree + * for fsyncs + */ +#define BTRFS_EXTENT_CSUM_OBJECTID -10ULL + +/* For storing free space cache */ +#define BTRFS_FREE_SPACE_OBJECTID -11ULL + +/* + * The inode number assigned to the special inode for storing + * free ino cache + */ +#define BTRFS_FREE_INO_OBJECTID -12ULL + +/* dummy objectid represents multiple objectids */ +#define BTRFS_MULTIPLE_OBJECTIDS -255ULL + +/* + * All files have objectids in this range. + */ +#define BTRFS_FIRST_FREE_OBJECTID 256ULL +#define BTRFS_LAST_FREE_OBJECTID -256ULL +#define BTRFS_FIRST_CHUNK_TREE_OBJECTID 256ULL + + +/* + * the device items go into the chunk tree. The key is in the form + * [ 1 BTRFS_DEV_ITEM_KEY device_id ] + */ +#define BTRFS_DEV_ITEMS_OBJECTID 1ULL + +#define BTRFS_BTREE_INODE_OBJECTID 1 + +#define BTRFS_EMPTY_SUBVOL_DIR_OBJECTID 2 + +#define BTRFS_DEV_REPLACE_DEVID 0ULL + +/* + * inode items have the data typically returned from stat and store other + * info about object characteristics. There is one for every file and dir in + * the FS + */ +#define BTRFS_INODE_ITEM_KEY 1 +#define BTRFS_INODE_REF_KEY 12 +#define BTRFS_INODE_EXTREF_KEY 13 +#define BTRFS_XATTR_ITEM_KEY 24 +#define BTRFS_ORPHAN_ITEM_KEY 48 +/* reserve 2-15 close to the inode for later flexibility */ + +/* + * dir items are the name -> inode pointers in a directory. There is one + * for every name in a directory. + */ +#define BTRFS_DIR_LOG_ITEM_KEY 60 +#define BTRFS_DIR_LOG_INDEX_KEY 72 +#define BTRFS_DIR_ITEM_KEY 84 +#define BTRFS_DIR_INDEX_KEY 96 +/* + * extent data is for file data + */ +#define BTRFS_EXTENT_DATA_KEY 108 + +/* + * extent csums are stored in a separate tree and hold csums for + * an entire extent on disk. + */ +#define BTRFS_EXTENT_CSUM_KEY 128 + +/* + * root items point to tree roots. They are typically in the root + * tree used by the super block to find all the other trees + */ +#define BTRFS_ROOT_ITEM_KEY 132 + +/* + * root backrefs tie subvols and snapshots to the directory entries that + * reference them + */ +#define BTRFS_ROOT_BACKREF_KEY 144 + +/* + * root refs make a fast index for listing all of the snapshots and + * subvolumes referenced by a given root. They point directly to the + * directory item in the root that references the subvol + */ +#define BTRFS_ROOT_REF_KEY 156 + +/* + * extent items are in the extent map tree. These record which blocks + * are used, and how many references there are to each block + */ +#define BTRFS_EXTENT_ITEM_KEY 168 + +/* + * The same as the BTRFS_EXTENT_ITEM_KEY, except it's metadata we already know + * the length, so we save the level in key->offset instead of the length. + */ +#define BTRFS_METADATA_ITEM_KEY 169 + +#define BTRFS_TREE_BLOCK_REF_KEY 176 + +#define BTRFS_EXTENT_DATA_REF_KEY 178 + +#define BTRFS_EXTENT_REF_V0_KEY 180 + +#define BTRFS_SHARED_BLOCK_REF_KEY 182 + +#define BTRFS_SHARED_DATA_REF_KEY 184 + +/* + * block groups give us hints into the extent allocation trees. Which + * blocks are free etc etc + */ +#define BTRFS_BLOCK_GROUP_ITEM_KEY 192 + +/* + * Every block group is represented in the free space tree by a free space info + * item, which stores some accounting information. It is keyed on + * (block_group_start, FREE_SPACE_INFO, block_group_length). + */ +#define BTRFS_FREE_SPACE_INFO_KEY 198 + +/* + * A free space extent tracks an extent of space that is free in a block group. + * It is keyed on (start, FREE_SPACE_EXTENT, length). + */ +#define BTRFS_FREE_SPACE_EXTENT_KEY 199 + +/* + * When a block group becomes very fragmented, we convert it to use bitmaps + * instead of extents. A free space bitmap is keyed on + * (start, FREE_SPACE_BITMAP, length); the corresponding item is a bitmap with + * (length / sectorsize) bits. + */ +#define BTRFS_FREE_SPACE_BITMAP_KEY 200 + +#define BTRFS_DEV_EXTENT_KEY 204 +#define BTRFS_DEV_ITEM_KEY 216 +#define BTRFS_CHUNK_ITEM_KEY 228 + +/* + * Records the overall state of the qgroups. + * There's only one instance of this key present, + * (0, BTRFS_QGROUP_STATUS_KEY, 0) + */ +#define BTRFS_QGROUP_STATUS_KEY 240 +/* + * Records the currently used space of the qgroup. + * One key per qgroup, (0, BTRFS_QGROUP_INFO_KEY, qgroupid). + */ +#define BTRFS_QGROUP_INFO_KEY 242 +/* + * Contains the user configured limits for the qgroup. + * One key per qgroup, (0, BTRFS_QGROUP_LIMIT_KEY, qgroupid). + */ +#define BTRFS_QGROUP_LIMIT_KEY 244 +/* + * Records the child-parent relationship of qgroups. For + * each relation, 2 keys are present: + * (childid, BTRFS_QGROUP_RELATION_KEY, parentid) + * (parentid, BTRFS_QGROUP_RELATION_KEY, childid) + */ +#define BTRFS_QGROUP_RELATION_KEY 246 + +/* + * Obsolete name, see BTRFS_TEMPORARY_ITEM_KEY. + */ +#define BTRFS_BALANCE_ITEM_KEY 248 + +/* + * The key type for tree items that are stored persistently, but do not need to + * exist for extended period of time. The items can exist in any tree. + * + * [subtype, BTRFS_TEMPORARY_ITEM_KEY, data] + * + * Existing items: + * + * - balance status item + * (BTRFS_BALANCE_OBJECTID, BTRFS_TEMPORARY_ITEM_KEY, 0) + */ +#define BTRFS_TEMPORARY_ITEM_KEY 248 + +/* + * Obsolete name, see BTRFS_PERSISTENT_ITEM_KEY + */ +#define BTRFS_DEV_STATS_KEY 249 + +/* + * The key type for tree items that are stored persistently and usually exist + * for a long period, eg. filesystem lifetime. The item kinds can be status + * information, stats or preference values. The item can exist in any tree. + * + * [subtype, BTRFS_PERSISTENT_ITEM_KEY, data] + * + * Existing items: + * + * - device statistics, store IO stats in the device tree, one key for all + * stats + * (BTRFS_DEV_STATS_OBJECTID, BTRFS_DEV_STATS_KEY, 0) + */ +#define BTRFS_PERSISTENT_ITEM_KEY 249 + +/* + * Persistantly stores the device replace state in the device tree. + * The key is built like this: (0, BTRFS_DEV_REPLACE_KEY, 0). + */ +#define BTRFS_DEV_REPLACE_KEY 250 + +/* + * Stores items that allow to quickly map UUIDs to something else. + * These items are part of the filesystem UUID tree. + * The key is built like this: + * (UUID_upper_64_bits, BTRFS_UUID_KEY*, UUID_lower_64_bits). + */ +#if BTRFS_UUID_SIZE != 16 +#error "UUID items require BTRFS_UUID_SIZE == 16!" +#endif +#define BTRFS_UUID_KEY_SUBVOL 251 /* for UUIDs assigned to subvols */ +#define BTRFS_UUID_KEY_RECEIVED_SUBVOL 252 /* for UUIDs assigned to + * received subvols */ + +/* + * string items are for debugging. They just store a short string of + * data in the FS + */ +#define BTRFS_STRING_ITEM_KEY 253 + + + +/* 32 bytes in various csum fields */ +#define BTRFS_CSUM_SIZE 32 + +/* csum types */ +#define BTRFS_CSUM_TYPE_CRC32 0 + +/* + * flags definitions for directory entry item type + * + * Used by: + * struct btrfs_dir_item.type + */ +#define BTRFS_FT_UNKNOWN 0 +#define BTRFS_FT_REG_FILE 1 +#define BTRFS_FT_DIR 2 +#define BTRFS_FT_CHRDEV 3 +#define BTRFS_FT_BLKDEV 4 +#define BTRFS_FT_FIFO 5 +#define BTRFS_FT_SOCK 6 +#define BTRFS_FT_SYMLINK 7 +#define BTRFS_FT_XATTR 8 +#define BTRFS_FT_MAX 9 + +/* + * The key defines the order in the tree, and so it also defines (optimal) + * block layout. + * + * objectid corresponds to the inode number. + * + * type tells us things about the object, and is a kind of stream selector. + * so for a given inode, keys with type of 1 might refer to the inode data, + * type of 2 may point to file data in the btree and type == 3 may point to + * extents. + * + * offset is the starting byte offset for this key in the stream. + * + * btrfs_disk_key is in disk byte order. struct btrfs_key is always + * in cpu native order. Otherwise they are identical and their sizes + * should be the same (ie both packed) + */ +struct btrfs_disk_key { + __le64 objectid; + u8 type; + __le64 offset; +} __attribute__ ((__packed__)); + +struct btrfs_key { + u64 objectid; + u8 type; + u64 offset; +} __attribute__ ((__packed__)); + +struct btrfs_dev_item { + /* the internal btrfs device id */ + __le64 devid; + + /* size of the device */ + __le64 total_bytes; + + /* bytes used */ + __le64 bytes_used; + + /* optimal io alignment for this device */ + __le32 io_align; + + /* optimal io width for this device */ + __le32 io_width; + + /* minimal io size for this device */ + __le32 sector_size; + + /* type and info about this device */ + __le64 type; + + /* expected generation for this device */ + __le64 generation; + + /* + * starting byte of this partition on the device, + * to allow for stripe alignment in the future + */ + __le64 start_offset; + + /* grouping information for allocation decisions */ + __le32 dev_group; + + /* seek speed 0-100 where 100 is fastest */ + u8 seek_speed; + + /* bandwidth 0-100 where 100 is fastest */ + u8 bandwidth; + + /* btrfs generated uuid for this device */ + u8 uuid[BTRFS_UUID_SIZE]; + + /* uuid of FS who owns this device */ + u8 fsid[BTRFS_UUID_SIZE]; +} __attribute__ ((__packed__)); + +struct btrfs_stripe { + __le64 devid; + __le64 offset; + u8 dev_uuid[BTRFS_UUID_SIZE]; +} __attribute__ ((__packed__)); + +struct btrfs_chunk { + /* size of this chunk in bytes */ + __le64 length; + + /* objectid of the root referencing this chunk */ + __le64 owner; + + __le64 stripe_len; + __le64 type; + + /* optimal io alignment for this chunk */ + __le32 io_align; + + /* optimal io width for this chunk */ + __le32 io_width; + + /* minimal io size for this chunk */ + __le32 sector_size; + + /* 2^16 stripes is quite a lot, a second limit is the size of a single + * item in the btree + */ + __le16 num_stripes; + + /* sub stripes only matter for raid10 */ + __le16 sub_stripes; + struct btrfs_stripe stripe; + /* additional stripes go here */ +} __attribute__ ((__packed__)); + +#define BTRFS_FREE_SPACE_EXTENT 1 +#define BTRFS_FREE_SPACE_BITMAP 2 + +struct btrfs_free_space_entry { + __le64 offset; + __le64 bytes; + u8 type; +} __attribute__ ((__packed__)); + +struct btrfs_free_space_header { + struct btrfs_disk_key location; + __le64 generation; + __le64 num_entries; + __le64 num_bitmaps; +} __attribute__ ((__packed__)); + +#define BTRFS_HEADER_FLAG_WRITTEN (1ULL << 0) +#define BTRFS_HEADER_FLAG_RELOC (1ULL << 1) + +/* Super block flags */ +/* Errors detected */ +#define BTRFS_SUPER_FLAG_ERROR (1ULL << 2) + +#define BTRFS_SUPER_FLAG_SEEDING (1ULL << 32) +#define BTRFS_SUPER_FLAG_METADUMP (1ULL << 33) + + +/* + * items in the extent btree are used to record the objectid of the + * owner of the block and the number of references + */ + +struct btrfs_extent_item { + __le64 refs; + __le64 generation; + __le64 flags; +} __attribute__ ((__packed__)); + +struct btrfs_extent_item_v0 { + __le32 refs; +} __attribute__ ((__packed__)); + + +#define BTRFS_EXTENT_FLAG_DATA (1ULL << 0) +#define BTRFS_EXTENT_F