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authorLinus Torvalds <torvalds@linux-foundation.org>2015-06-26 14:51:15 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-06-26 14:51:15 -0700
commitd87823813fe498fdd47894bd28e460a9dee8d771 (patch)
tree214eaf3babd0d61f08022fc1edd99a5128616548 /include
parente382608254e06c8109f40044f5e693f2e04f3899 (diff)
parent3dc196eae1db548f05e53e5875ff87b8ff79f249 (diff)
Merge tag 'char-misc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH: "Here's the big char/misc driver pull request for 4.2-rc1. Lots of mei, extcon, coresight, uio, mic, and other driver updates in here. Full details in the shortlog. All of these have been in linux-next for some time with no reported problems" * tag 'char-misc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (176 commits) mei: me: wait for power gating exit confirmation mei: reset flow control on the last client disconnection MAINTAINERS: mei: add mei_cl_bus.h to maintained file list misc: sram: sort and clean up included headers misc: sram: move reserved block logic out of probe function misc: sram: add private struct device and virt_base members misc: sram: report correct SRAM pool size misc: sram: bump error message level on unclean driver unbinding misc: sram: fix device node reference leak on error misc: sram: fix enabled clock leak on error path misc: mic: Fix reported static checker warning misc: mic: Fix randconfig build error by including errno.h uio: pruss: Drop depends on ARCH_DAVINCI_DA850 from config uio: pruss: Add CONFIG_HAS_IOMEM dependence uio: pruss: Include <linux/sizes.h> extcon: Redefine the unique id of supported external connectors without 'enum extcon' type char:xilinx_hwicap:buffer_icap - change 1/0 to true/false for bool type variable in function buffer_icap_set_configuration(). Drivers: hv: vmbus: Allocate ring buffer memory in NUMA aware fashion parport: check exclusive access before register w1: use correct lock on error in w1_seq_show() ...
Diffstat (limited to 'include')
-rw-r--r--include/dt-bindings/mfd/arizona.h4
-rw-r--r--include/linux/extcon.h134
-rw-r--r--include/linux/extcon/extcon-adc-jack.h5
-rw-r--r--include/linux/hyperv.h48
-rw-r--r--include/linux/mei_cl_bus.h38
-rw-r--r--include/linux/mfd/arizona/pdata.h3
-rw-r--r--include/linux/mfd/axp20x.h5
-rw-r--r--include/linux/mod_devicetable.h13
-rw-r--r--include/linux/parport.h43
-rw-r--r--include/linux/scif.h993
-rw-r--r--include/uapi/linux/Kbuild1
-rw-r--r--include/uapi/linux/hyperv.h8
-rw-r--r--include/uapi/linux/mic_common.h12
-rw-r--r--include/uapi/linux/scif_ioctl.h130
14 files changed, 1322 insertions, 115 deletions
diff --git a/include/dt-bindings/mfd/arizona.h b/include/dt-bindings/mfd/arizona.h
index 555609910acb..7b2000cead43 100644
--- a/include/dt-bindings/mfd/arizona.h
+++ b/include/dt-bindings/mfd/arizona.h
@@ -104,4 +104,8 @@
#define ARIZONA_MICD_TIME_256MS 11
#define ARIZONA_MICD_TIME_512MS 12
+#define ARIZONA_ACCDET_MODE_MIC 0
+#define ARIZONA_ACCDET_MODE_HPL 1
+#define ARIZONA_ACCDET_MODE_HPR 2
+
#endif
diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index 36f49c405dfb..b16d929fa75f 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -1,6 +1,9 @@
/*
* External connector (extcon) class driver
*
+ * Copyright (C) 2015 Samsung Electronics
+ * Author: Chanwoo Choi <cw00.choi@samsung.com>
+ *
* Copyright (C) 2012 Samsung Electronics
* Author: Donggeun Kim <dg77.kim@samsung.com>
* Author: MyungJoo Ham <myungjoo.ham@samsung.com>
@@ -27,50 +30,35 @@
#include <linux/notifier.h>
#include <linux/sysfs.h>
-#define SUPPORTED_CABLE_MAX 32
-#define CABLE_NAME_MAX 30
-
/*
- * The standard cable name is to help support general notifier
- * and notifiee device drivers to share the common names.
- * Please use standard cable names unless your notifier device has
- * a very unique and abnormal cable or
- * the cable type is supposed to be used with only one unique
- * pair of notifier/notifiee devices.
- *
- * Please add any other "standard" cables used with extcon dev.
- *
- * You may add a dot and number to specify version or specification
- * of the specific cable if it is required. (e.g., "Fast-charger.18"
- * and "Fast-charger.10" for 1.8A and 1.0A chargers)
- * However, the notifiee and notifier should be able to handle such
- * string and if the notifiee can negotiate the protocol or identify,
- * you don't need such convention. This convention is helpful when
- * notifier can distinguish but notifiee cannot.
+ * Define the unique id of supported external connectors
*/
-enum extcon_cable_name {
- EXTCON_USB = 0,
- EXTCON_USB_HOST,
- EXTCON_TA, /* Travel Adaptor */
- EXTCON_FAST_CHARGER,
- EXTCON_SLOW_CHARGER,
- EXTCON_CHARGE_DOWNSTREAM, /* Charging an external device */
- EXTCON_HDMI,
- EXTCON_MHL,
- EXTCON_DVI,
- EXTCON_VGA,
- EXTCON_DOCK,
- EXTCON_LINE_IN,
- EXTCON_LINE_OUT,
- EXTCON_MIC_IN,
- EXTCON_HEADPHONE_OUT,
- EXTCON_SPDIF_IN,
- EXTCON_SPDIF_OUT,
- EXTCON_VIDEO_IN,
- EXTCON_VIDEO_OUT,
- EXTCON_MECHANICAL,
-};
-extern const char extcon_cable_name[][CABLE_NAME_MAX + 1];
+#define EXTCON_NONE 0
+
+#define EXTCON_USB 1 /* USB connector */
+#define EXTCON_USB_HOST 2
+
+#define EXTCON_TA 3 /* Charger connector */
+#define EXTCON_FAST_CHARGER 4
+#define EXTCON_SLOW_CHARGER 5
+#define EXTCON_CHARGE_DOWNSTREAM 6
+
+#define EXTCON_LINE_IN 7 /* Audio/Video connector */
+#define EXTCON_LINE_OUT 8
+#define EXTCON_MICROPHONE 9
+#define EXTCON_HEADPHONE 10
+#define EXTCON_HDMI 11
+#define EXTCON_MHL 12
+#define EXTCON_DVI 13
+#define EXTCON_VGA 14
+#define EXTCON_SPDIF_IN 15
+#define EXTCON_SPDIF_OUT 16
+#define EXTCON_VIDEO_IN 17
+#define EXTCON_VIDEO_OUT 18
+
+#define EXTCON_DOCK 19 /* Misc connector */
+#define EXTCON_JIG 20
+#define EXTCON_MECHANICAL 21
struct extcon_cable;
@@ -78,7 +66,7 @@ struct extcon_cable;
* struct extcon_dev - An extcon device represents one external connector.
* @name: The name of this extcon device. Parent device name is
* used if NULL.
- * @supported_cable: Array of supported cable names ending with NULL.
+ * @supported_cable: Array of supported cable names ending with EXTCON_NONE.
* If supported_cable is NULL, cable name related APIs
* are disabled.
* @mutually_exclusive: Array of mutually exclusive set of cables that cannot
@@ -89,16 +77,14 @@ struct extcon_cable;
* be attached simulataneously. {0x7, 0} is equivalent to
* {0x3, 0x6, 0x5, 0}. If it is {0xFFFFFFFF, 0}, there
* can be no simultaneous connections.
- * @print_name: An optional callback to override the method to print the
- * name of the extcon device.
* @print_state: An optional callback to override the method to print the
* status of the extcon device.
* @dev: Device of this extcon.
* @state: Attach/detach state of this extcon. Do not provide at
* register-time.
* @nh: Notifier for the state change events from this extcon
- * @entry: To support list of extcon devices so that users can search
- * for extcon devices based on the extcon name.
+ * @entry: To support list of extcon devices so that users can
+ * search for extcon devices based on the extcon name.
* @lock:
* @max_supported: Internal value to store the number of cables.
* @extcon_dev_type: Device_type struct to provide attribute_groups
@@ -113,16 +99,15 @@ struct extcon_cable;
struct extcon_dev {
/* Optional user initializing data */
const char *name;
- const char **supported_cable;
+ const unsigned int *supported_cable;
const u32 *mutually_exclusive;
/* Optional callbacks to override class functions */
- ssize_t (*print_name)(struct extcon_dev *edev, char *buf);
ssize_t (*print_state)(struct extcon_dev *edev, char *buf);
/* Internal data. Please do not set. */
struct device dev;
- struct raw_notifier_head nh;
+ struct raw_notifier_head *nh;
struct list_head entry;
int max_supported;
spinlock_t lock; /* could be called by irq handler */
@@ -161,8 +146,6 @@ struct extcon_cable {
/**
* struct extcon_specific_cable_nb - An internal data for
* extcon_register_interest().
- * @internal_nb: A notifier block bridging extcon notifier
- * and cable notifier.
* @user_nb: user provided notifier block for events from
* a specific cable.
* @cable_index: the target cable.
@@ -170,7 +153,6 @@ struct extcon_cable {
* @previous_value: the saved previous event value.
*/
struct extcon_specific_cable_nb {
- struct notifier_block internal_nb;
struct notifier_block *user_nb;
int cable_index;
struct extcon_dev *edev;
@@ -194,10 +176,10 @@ extern struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name);
/*
* Following APIs control the memory of extcon device.
*/
-extern struct extcon_dev *extcon_dev_allocate(const char **cables);
+extern struct extcon_dev *extcon_dev_allocate(const unsigned int *cable);
extern void extcon_dev_free(struct extcon_dev *edev);
extern struct extcon_dev *devm_extcon_dev_allocate(struct device *dev,
- const char **cables);
+ const unsigned int *cable);
extern void devm_extcon_dev_free(struct device *dev, struct extcon_dev *edev);
/*
@@ -216,13 +198,10 @@ extern int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state);
/*
* get/set_cable_state access each bit of the 32b encoded state value.
- * They are used to access the status of each cable based on the cable_name
- * or cable_index, which is retrieved by extcon_find_cable_index
+ * They are used to access the status of each cable based on the cable_name.
*/
-extern int extcon_find_cable_index(struct extcon_dev *sdev,
- const char *cable_name);
-extern int extcon_get_cable_state_(struct extcon_dev *edev, int cable_index);
-extern int extcon_set_cable_state_(struct extcon_dev *edev, int cable_index,
+extern int extcon_get_cable_state_(struct extcon_dev *edev, unsigned int id);
+extern int extcon_set_cable_state_(struct extcon_dev *edev, unsigned int id,
bool cable_state);
extern int extcon_get_cable_state(struct extcon_dev *edev,
@@ -249,16 +228,21 @@ extern int extcon_unregister_interest(struct extcon_specific_cable_nb *nb);
* we do not recommend to use this for normal 'notifiee' device drivers who
* want to be notified by a specific external port of the notifier.
*/
-extern int extcon_register_notifier(struct extcon_dev *edev,
+extern int extcon_register_notifier(struct extcon_dev *edev, unsigned int id,
+ struct notifier_block *nb);
+extern int extcon_unregister_notifier(struct extcon_dev *edev, unsigned int id,
struct notifier_block *nb);
-extern int extcon_unregister_notifier(struct extcon_dev *edev,
- struct notifier_block *nb);
/*
* Following API get the extcon device from devicetree.
* This function use phandle of devicetree to get extcon device directly.
*/
-extern struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev, int index);
+extern struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev,
+ int index);
+
+/* Following API to get information of extcon device */
+extern const char *extcon_get_edev_name(struct extcon_dev *edev);
+
#else /* CONFIG_EXTCON */
static inline int extcon_dev_register(struct extcon_dev *edev)
{
@@ -276,7 +260,7 @@ static inline int devm_extcon_dev_register(struct device *dev,
static inline void devm_extcon_dev_unregister(struct device *dev,
struct extcon_dev *edev) { }
-static inline struct extcon_dev *extcon_dev_allocate(const char **cables)
+static inline struct extcon_dev *extcon_dev_allocate(const unsigned int *cable)
{
return ERR_PTR(-ENOSYS);
}
@@ -284,7 +268,7 @@ static inline struct extcon_dev *extcon_dev_allocate(const char **cables)
static inline void extcon_dev_free(struct extcon_dev *edev) { }
static inline struct extcon_dev *devm_extcon_dev_allocate(struct device *dev,
- const char **cables)
+ const unsigned int *cable)
{
return ERR_PTR(-ENOSYS);
}
@@ -307,20 +291,14 @@ static inline int extcon_update_state(struct extcon_dev *edev, u32 mask,
return 0;
}
-static inline int extcon_find_cable_index(struct extcon_dev *edev,
- const char *cable_name)
-{
- return 0;
-}
-
static inline int extcon_get_cable_state_(struct extcon_dev *edev,
- int cable_index)
+ unsigned int id)
{
return 0;
}
static inline int extcon_set_cable_state_(struct extcon_dev *edev,
- int cable_index, bool cable_state)
+ unsigned int id, bool cable_state)
{
return 0;
}
@@ -343,13 +321,15 @@ static inline struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name)
}
static inline int extcon_register_notifier(struct extcon_dev *edev,
- struct notifier_block *nb)
+ unsigned int id,
+ struct notifier_block *nb)
{
return 0;
}
static inline int extcon_unregister_notifier(struct extcon_dev *edev,
- struct notifier_block *nb)
+ unsigned int id,
+ struct notifier_block *nb)
{
return 0;
}
diff --git a/include/linux/extcon/extcon-adc-jack.h b/include/linux/extcon/extcon-adc-jack.h
index 9ca958c4e94c..53c60806bcfb 100644
--- a/include/linux/extcon/extcon-adc-jack.h
+++ b/include/linux/extcon/extcon-adc-jack.h
@@ -44,7 +44,7 @@ struct adc_jack_cond {
* @consumer_channel: Unique name to identify the channel on the consumer
* side. This typically describes the channels used within
* the consumer. E.g. 'battery_voltage'
- * @cable_names: array of cable names ending with null.
+ * @cable_names: array of extcon id for supported cables.
* @adc_contitions: array of struct adc_jack_cond conditions ending
* with .state = 0 entry. This describes how to decode
* adc values into extcon state.
@@ -58,8 +58,7 @@ struct adc_jack_pdata {
const char *name;
const char *consumer_channel;
- /* The last entry should be NULL */
- const char **cable_names;
+ const enum extcon *cable_names;
/* The last entry's state should be 0 */
struct adc_jack_cond *adc_conditions;
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 902c37aef67e..30d3a1f79450 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -160,16 +160,18 @@ hv_get_ringbuffer_availbytes(struct hv_ring_buffer_info *rbi,
* 1 . 1 (Windows 7)
* 2 . 4 (Windows 8)
* 3 . 0 (Windows 8 R2)
+ * 4 . 0 (Windows 10)
*/
#define VERSION_WS2008 ((0 << 16) | (13))
#define VERSION_WIN7 ((1 << 16) | (1))
#define VERSION_WIN8 ((2 << 16) | (4))
#define VERSION_WIN8_1 ((3 << 16) | (0))
+#define VERSION_WIN10 ((4 << 16) | (0))
#define VERSION_INVAL -1
-#define VERSION_CURRENT VERSION_WIN8_1
+#define VERSION_CURRENT VERSION_WIN10
/* Make maximum size of pipe payload of 16K */
#define MAX_PIPE_DATA_PAYLOAD (sizeof(u8) * 16384)
@@ -389,10 +391,7 @@ enum vmbus_channel_message_type {
CHANNELMSG_INITIATE_CONTACT = 14,
CHANNELMSG_VERSION_RESPONSE = 15,
CHANNELMSG_UNLOAD = 16,
-#ifdef VMBUS_FEATURE_PARENT_OR_PEER_MEMORY_MAPPED_INTO_A_CHILD
- CHANNELMSG_VIEWRANGE_ADD = 17,
- CHANNELMSG_VIEWRANGE_REMOVE = 18,
-#endif
+ CHANNELMSG_UNLOAD_RESPONSE = 17,
CHANNELMSG_COUNT
};
@@ -549,21 +548,6 @@ struct vmbus_channel_gpadl_torndown {
u32 gpadl;
} __packed;
-#ifdef VMBUS_FEATURE_PARENT_OR_PEER_MEMORY_MAPPED_INTO_A_CHILD
-struct vmbus_channel_view_range_add {
- struct vmbus_channel_message_header header;
- PHYSICAL_ADDRESS viewrange_base;
- u64 viewrange_length;
- u32 child_relid;
-} __packed;
-
-struct vmbus_channel_view_range_remove {
- struct vmbus_channel_message_header header;
- PHYSICAL_ADDRESS viewrange_base;
- u32 child_relid;
-} __packed;
-#endif
-
struct vmbus_channel_relid_released {
struct vmbus_channel_message_header header;
u32 child_relid;
@@ -713,6 +697,11 @@ struct vmbus_channel {
/* The corresponding CPUID in the guest */
u32 target_cpu;
/*
+ * State to manage the CPU affiliation of channels.
+ */
+ struct cpumask alloced_cpus_in_node;
+ int numa_node;
+ /*
* Support for sub-channels. For high performance devices,
* it will be useful to have multiple sub-channels to support
* a scalable communication infrastructure with the host.
@@ -745,6 +734,15 @@ struct vmbus_channel {
*/
struct list_head sc_list;
/*
+ * Current number of sub-channels.
+ */
+ int num_sc;
+ /*
+ * Number of a sub-channel (position within sc_list) which is supposed
+ * to be used as the next outgoing channel.
+ */
+ int next_oc;
+ /*
* The primary channel this sub-channel belongs to.
* This will be NULL for the primary channel.
*/
@@ -758,9 +756,6 @@ struct vmbus_channel {
* link up channels based on their CPU affinity.
*/
struct list_head percpu_list;
-
- int num_sc;
- int next_oc;
};
static inline void set_channel_read_state(struct vmbus_channel *c, bool state)
@@ -1236,13 +1231,6 @@ extern bool vmbus_prep_negotiate_resp(struct icmsg_hdr *,
struct icmsg_negotiate *, u8 *, int,
int);
-int hv_kvp_init(struct hv_util_service *);
-void hv_kvp_deinit(void);
-void hv_kvp_onchannelcallback(void *);
-
-int hv_vss_init(struct hv_util_service *);
-void hv_vss_deinit(void);
-void hv_vss_onchannelcallback(void *);
void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid);
extern struct resource hyperv_mmio;
diff --git a/include/linux/mei_cl_bus.h b/include/linux/mei_cl_bus.h
index 0819d36a3a74..a16b1f9c1aca 100644
--- a/include/linux/mei_cl_bus.h
+++ b/include/linux/mei_cl_bus.h
@@ -7,6 +7,42 @@
struct mei_cl_device;
+typedef void (*mei_cl_event_cb_t)(struct mei_cl_device *device,
+ u32 events, void *context);
+
+/**
+ * struct mei_cl_device - MEI device handle
+ * An mei_cl_device pointer is returned from mei_add_device()
+ * and links MEI bus clients to their actual ME host client pointer.
+ * Drivers for MEI devices will get an mei_cl_device pointer
+ * when being probed and shall use it for doing ME bus I/O.
+ *
+ * @dev: linux driver model device pointer
+ * @me_cl: me client
+ * @cl: mei client
+ * @name: device name
+ * @event_work: async work to execute event callback
+ * @event_cb: Drivers register this callback to get asynchronous ME
+ * events (e.g. Rx buffer pending) notifications.
+ * @event_context: event callback run context
+ * @events: Events bitmask sent to the driver.
+ * @priv_data: client private data
+ */
+struct mei_cl_device {
+ struct device dev;
+
+ struct mei_me_client *me_cl;
+ struct mei_cl *cl;
+ char name[MEI_CL_NAME_SIZE];
+
+ struct work_struct event_work;
+ mei_cl_event_cb_t event_cb;
+ void *event_context;
+ unsigned long events;
+
+ void *priv_data;
+};
+
struct mei_cl_driver {
struct device_driver driver;
const char *name;
@@ -28,8 +64,6 @@ void mei_cl_driver_unregister(struct mei_cl_driver *driver);
ssize_t mei_cl_send(struct mei_cl_device *device, u8 *buf, size_t length);
ssize_t mei_cl_recv(struct mei_cl_device *device, u8 *buf, size_t length);
-typedef void (*mei_cl_event_cb_t)(struct mei_cl_device *device,
- u32 events, void *context);
int mei_cl_register_event_cb(struct mei_cl_device *device,
mei_cl_event_cb_t read_cb, void *context);
diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h
index f6722677e6d0..43db4faad143 100644
--- a/include/linux/mfd/arizona/pdata.h
+++ b/include/linux/mfd/arizona/pdata.h
@@ -121,6 +121,9 @@ struct arizona_pdata {
/** GPIO used for mic isolation with HPDET */
int hpdet_id_gpio;
+ /** Channel to use for headphone detection */
+ unsigned int hpdet_channel;
+
/** Extra debounce timeout used during initial mic detection (ms) */
int micd_detect_debounce;
diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h
index 02f97dc568ac..c2aa853fb412 100644
--- a/include/linux/mfd/axp20x.h
+++ b/include/linux/mfd/axp20x.h
@@ -368,4 +368,9 @@ struct axp20x_chrg_pdata {
int def_cv;
};
+struct axp288_extcon_pdata {
+ /* GPIO pin control to switch D+/D- lines b/w PMIC and SOC */
+ struct gpio_desc *gpio_mux_cntl;
+};
+
#endif /* __LINUX_MFD_AXP20X_H */
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 3bfd56778c29..048c270822f9 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -599,9 +599,22 @@ struct ipack_device_id {
#define MEI_CL_MODULE_PREFIX "mei:"
#define MEI_CL_NAME_SIZE 32
+#define MEI_CL_UUID_FMT "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x"
+#define MEI_CL_UUID_ARGS(_u) \
+ _u[0], _u[1], _u[2], _u[3], _u[4], _u[5], _u[6], _u[7], \
+ _u[8], _u[9], _u[10], _u[11], _u[12], _u[13], _u[14], _u[15]
+/**
+ * struct mei_cl_device_id - MEI client device identifier
+ * @name: helper name
+ * @uuid: client uuid
+ * @driver_info: information used by the driver.
+ *
+ * identifies mei client device by uuid and name
+ */
struct mei_cl_device_id {
char name[MEI_CL_NAME_SIZE];
+ uuid_le uuid;
kernel_ulong_t driver_info;
};
diff --git a/include/linux/parport.h b/include/linux/parport.h
index c22f12547324..58e3c64c6b49 100644
--- a/include/linux/parport.h
+++ b/include/linux/parport.h
@@ -13,6 +13,7 @@
#include <linux/wait.h>
#include <linux/irqreturn.h>
#include <linux/semaphore.h>
+#include <linux/device.h>
#include <asm/ptrace.h>
#include <uapi/linux/parport.h>
@@ -145,6 +146,8 @@ struct pardevice {
unsigned int flags;
struct pardevice *next;
struct pardevice *prev;
+ struct device dev;
+ bool devmodel;
struct parport_state *state; /* saved status over preemption */
wait_queue_head_t wait_q;
unsigned long int time;
@@ -156,6 +159,8 @@ struct pardevice {
void * sysctl_table;
};
+#define to_pardevice(n) container_of(n, struct pardevice, dev)
+
/* IEEE1284 information */
/* IEEE1284 phases. These are exposed to userland through ppdev IOCTL
@@ -195,7 +200,7 @@ struct parport {
* This may unfortulately be null if the
* port has a legacy driver.
*/
-
+ struct device bus_dev; /* to link with the bus */
struct parport *physport;
/* If this is a non-default mux
parport, i.e. we're a clone of a real
@@ -245,15 +250,26 @@ struct parport {
struct parport *slaves[3];
};
+#define to_parport_dev(n) container_of(n, struct parport, bus_dev)
+
#define DEFAULT_SPIN_TIME 500 /* us */
struct parport_driver {
const char *name;
void (*attach) (struct parport *);
void (*detach) (struct parport *);
+ void (*match_port)(struct parport *);
+ int (*probe)(struct pardevice *);
+ struct device_driver driver;
+ bool devmodel;
struct list_head list;
};
+#define to_parport_driver(n) container_of(n, struct parport_driver, driver)
+
+int parport_bus_init(void);
+void parport_bus_exit(void);
+
/* parport_register_port registers a new parallel port at the given
address (if one does not already exist) and returns a pointer to it.
This entails claiming the I/O region, IRQ and DMA. NULL is returned
@@ -272,10 +288,20 @@ void parport_announce_port (struct parport *port);
extern void parport_remove_port(struct parport *port);
/* Register a new high-level driver. */
-extern int parport_register_driver (struct parport_driver *);
+
+int __must_check __parport_register_driver(struct parport_driver *,
+ struct module *,
+ const char *mod_name);
+/*
+ * parport_register_driver must be a macro so that KBUILD_MODNAME can
+ * be expanded
+ */
+#define parport_register_driver(driver) \
+ __parport_register_driver(driver, THIS_MODULE, KBUILD_MODNAME)
/* Unregister a high-level driver. */
extern void parport_unregister_driver (struct parport_driver *);
+void parport_unregister_driver(struct parport_driver *);
/* If parport_register_driver doesn't fit your needs, perhaps
* parport_find_xxx does. */
@@ -288,6 +314,15 @@ extern irqreturn_t parport_irq_handler(int irq, void *dev_id);
/* Reference counting for ports. */
extern struct parport *parport_get_port (struct parport *);
extern void parport_put_port (struct parport *);
+void parport_del_port(struct parport *);
+
+struct pardev_cb {
+ int (*preempt)(void *);
+ void (*wakeup)(void *);
+ void *private;
+ void (*irq_func)(void *);
+ unsigned int flags;
+};
/* parport_register_device declares that a device is connected to a
port, and tells the kernel all it needs to know.
@@ -301,6 +336,10 @@ struct pardevice *parport_register_device(struct parport *port,
void (*irq_func)(void *),
int flags, void *handle);
+struct pardevice *
+parport_register_dev_model(struct parport *port, const char *name,
+ const struct pardev_cb *par_dev_cb, int cnt);
+
/* parport_unregister unlinks a device from the chain. */
extern void parport_unregister_device(struct pardevice *dev);
diff --git a/include/linux/scif.h b/include/linux/scif.h
new file mode 100644
index 000000000000..44f4f3898bbe
--- /dev/null
+++ b/include/linux/scif.h
@@ -0,0 +1,993 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Intel SCIF driver.
+ *
+ */
+#ifndef __SCIF_H__
+#define __SCIF_H__
+
+#include <linux/types.h>
+#include <linux/poll.h>
+#include <linux/scif_ioctl.h>
+
+#define SCIF_ACCEPT_SYNC 1
+#define SCIF_SEND_BLOCK 1
+#define SCIF_RECV_BLOCK 1
+
+enum {
+ SCIF_PROT_READ = (1 << 0),
+ SCIF_PROT_WRITE = (1 << 1)
+};
+
+enum {
+ SCIF_MAP_FIXED = 0x10,
+ SCIF_MAP_KERNEL = 0x20,
+};
+
+enum {
+ SCIF_FENCE_INIT_SELF = (1 << 0),
+ SCIF_FENCE_INIT_PEER = (1 << 1),
+ SCIF_SIGNAL_LOCAL = (1 << 4),
+ SCIF_SIGNAL_REMOTE = (1 << 5)
+};
+
+enum {
+ SCIF_RMA_USECPU = (1 << 0),
+ SCIF_RMA_USECACHE = (1 << 1),
+ SCIF_RMA_SYNC = (1 << 2),
+ SCIF_RMA_ORDERED = (1 << 3)
+};
+
+/* End of SCIF Admin Reserved Ports */
+#define SCIF_ADMIN_PORT_END 1024
+
+/* End of SCIF Reserved Ports */
+#define SCIF_PORT_RSVD 1088
+
+typedef struct scif_endpt *scif_epd_t;
+
+#define SCIF_OPEN_FAILED ((scif_epd_t)-1)
+#define SCIF_REGISTER_FAILED ((off_t)-1)
+#define SCIF_MMAP_FAILED ((void *)-1)
+
+/**
+ * scif_open() - Create an endpoint
+ *
+ * Return:
+ * Upon successful completion, scif_open() returns an endpoint descriptor to
+ * be used in subsequent SCIF functions calls to refer to that endpoint;
+ * otherwise in user mode SCIF_OPEN_FAILED (that is ((scif_epd_t)-1)) is
+ * returned and errno is set to indicate the error; in kernel mode a NULL
+ * scif_epd_t is returned.
+ *
+ * Errors:
+ * ENOMEM - Insufficient kernel memory was available
+ */
+scif_epd_t scif_open(void);
+
+/**
+ * scif_bind() - Bind an endpoint to a port
+ * @epd: endpoint descriptor
+ * @pn: port number
+ *
+ * scif_bind() binds endpoint epd to port pn, where pn is a port number on the
+ * local node. If pn is zero, a port number greater than or equal to
+ * SCIF_PORT_RSVD is assigned and returned. Each endpoint may be bound to
+ * exactly one local port. Ports less than 1024 when requested can only be bound
+ * by system (or root) processes or by processes executed by privileged users.
+ *
+ * Return:
+ * Upon successful completion, scif_bind() returns the port number to which epd
+ * is bound; otherwise in user mode -1 is returned and errno is set to
+ * indicate the error; in kernel mode the negative of one of the following
+ * errors is returned.
+ *
+ * Errors:
+ * EBADF, ENOTTY - epd is not a valid endpoint descriptor
+ * EINVAL - the endpoint or the port is already bound
+ * EISCONN - The endpoint is already connected
+ * ENOSPC - No port number available for assignment
+ * EACCES - The port requested is protected and the user is not the superuser
+ */
+int scif_bind(scif_epd_t epd, u16 pn);
+
+/**
+ * scif_listen() - Listen for connections on an endpoint
+ * @epd: endpoint descriptor
+ * @backlog: maximum pending connection requests
+ *
+ * scif_listen() marks the endpoint epd as a listening endpoint - that is, as
+ * an endpoint that will be used to accept incoming connection requests. Once
+ * so marked, the endpoint is said to be in the listening state and may not be
+ * used as the endpoint of a connection.
+ *
+ * The endpoint, epd, must have been bound to a port.
+ *
+ * The backlog argument defines the maximum length to which the queue of
+ * pending connections for epd may grow. If a connection request arrives when
+ * the queue is full, the client may receive an error with an indication that
+ * the connection was refused.
+ *
+ * Return:
+ * Upon successful completion, scif_listen() returns 0; otherwise in user mode
+ * -1 is returned and errno is set to indicate the error; in kernel mode the
+ * negative of one of the following errors is returned.
+ *
+ * Errors:
+ * EBADF, ENOTTY - epd is not a valid endpoint descriptor
+ * EINVAL - the endpoint is not bound to a port
+ * EISCONN - The endpoint is already connected or listening
+ */
+int scif_listen(scif_epd_t epd, int backlog);
+
+/**
+ * scif_connect() - Initiate a connection on a port
+ * @epd: endpoint descriptor
+ * @dst: global id of port to which to connect
+ *
+ * The scif_connect() function requests the connection of endpoint epd to remote
+ * port dst. If the connection is successful, a peer endpoint, bound to dst, is
+ * created on node dst.node. On successful return, the connection is complete.
+ *
+ * If the endpoint epd has not already been bound to a port, scif_connect()
+ * will bind it to an unused local port.
+ *
+ * A connection is terminated when an endpoint of the connection is closed,
+ * either explicitly by scif_close(), or when a process that owns one of the
+ * endpoints of the connection is terminated.
+ *
+ * In user space, scif_connect() supports an asynchronous connection mode
+ * if the application has set the O_NONBLOCK flag on the endpoint via the
+ * fcntl() system call. Setting this flag will result in the calling process
+ * not to wait during scif_connect().
+ *
+ * Return:
+ * Upon successful completion, scif_connect() returns the port ID to which the
+ * endpoint, epd, is bound; otherwise in user mode -1 is returned and errno is
+ * set to indicate the error; in kernel mode the negative of one of the
+ * following errors is returned.
+ *
+ * Errors:
+ * EBADF, ENOTTY - epd is not a valid endpoint descriptor
+ * ECONNREFUSED - The destination was not listening for connections or refused
+ * the connection request
+ * EINVAL - dst.port is not a valid port ID
+ * EISCONN - The endpoint is already connected
+ * ENOMEM - No buffer space is available
+ * ENODEV - The destination node does not exist, or the node is lost or existed,
+ * but is not currently in the network since it may have crashed
+ * ENOSPC - No port number available for assignment
+ * EOPNOTSUPP - The endpoint is listening and cannot be connected
+ */
+int scif_connect(scif_epd_t epd, struct scif_port_id *dst);
+
+/**
+ * scif_accept() - Accept a connection on an endpoint
+ * @epd: endpoint descriptor
+ * @peer: global id of port to which connected
+ * @newepd: new connected endpoint descriptor
+ * @flags: flags
+ *
+ * The scif_accept() call extracts the first connection request from the queue
+ * of pending connections for the port on which epd is listening. scif_accept()
+ * creates a new endpoint, bound to the same port as epd, and allocates a new
+ * SCIF endpoint descriptor, returned in newepd, for the endpoint. The new
+ * endpoint is connected to the endpoint through which the connection was
+ * requested. epd is unaffected by this call, and remains in the listening
+ * state.
+ *
+ * On successful return, peer holds the global port identifier (node id and
+ * local port number) of the port which requested the connection.
+ *
+ * A connection is terminated when an endpoint of the connection is closed,
+ * either explicitly by scif_close(), or when a process that owns one of the
+ * endpoints of the connection is terminated.
+ *
+ * The number of connections that can (subsequently) be accepted on epd is only
+ * limited by system resources (memory).
+ *
+ * The flags argument is formed by OR'ing together zero or more of the
+ * following values.
+ * SCIF_ACCEPT_SYNC - block until a connection request is presented. If
+ * SCIF_ACCEPT_SYNC is not in flags, and no pending
+ * connections are present on the queue, scif_accept()
+ * fails with an EAGAIN error
+ *
+ * In user mode, the select() and poll() functions can be used to determine
+ * when there is a connection request. In kernel mode, the scif_poll()
+ * function may be used for this purpose. A readable event will be delivered
+ * when a connection is requested.
+ *
+ * Return:
+ * Upon successful completion, scif_accept() returns 0; otherwise in user mode
+ * -1 is returned and errno is set to indicate the error; in kernel mode the
+ * negative of one of the following errors is returned.
+ *
+ * Errors:
+ * EAGAIN - SCIF_ACCEPT_SYNC is not set and no connections are present to be
+ * accepted or SCIF_ACCEPT_SYNC is not set and remote node failed to complete
+ * its connection request
+ * EBADF, ENOTTY - epd is not a valid endpoint descriptor
+ * EINTR - Interrupted function
+ * EINVAL - epd is not a listening endpoint, or flags is invalid, or peer is
+ * NULL, or newepd is NULL
+ * ENODEV - The requesting node is lost or existed, but is not currently in the
+ * network since it may have crashed
+ * ENOMEM - Not enough space
+ * ENOENT - Secondary part of epd registration failed
+ */
+int scif_accept(scif_epd_t epd, struct scif_port_id *peer, scif_epd_t
+ *newepd, int flags);
+
+/**
+ * scif_close() - Close an endpoint
+ * @epd: endpoint descriptor
+ *
+ * scif_close() closes an endpoint and performs necessary teardown of
+ * facilities associated with that endpoint.
+ *
+ * If epd is a listening endpoint then it will no longer accept connection
+ * requests on the port to which it is bound. Any pending connection requests
+ * are rejected.
+ *
+ * If epd is a connected endpoint, then its peer endpoint is also closed. RMAs
+ * which are in-process through epd or its peer endpoint will complete before
+ * scif_close() returns. Registered windows of the local and peer endpoints are
+ * released as if scif_unregister() was called against each window.
+ *
+ * Closing a SCIF endpoint does not affect local registered memory mapped by
+ * a SCIF endpoint on a remote node. The local memory remains mapped by the peer
+ * SCIF endpoint explicitly removed by calling munmap(..) by the peer.
+ *
+ * If the peer endpoint's receive queue is not empty at the time that epd is
+ * closed, then the peer endpoint can be passed as the endpoint parameter to
+ * scif_recv() until the receive queue is empty.
+ *
+ * epd is freed and may no longer be accessed.
+ *
+ * Return:
+ * Upon successful completion, scif_close() returns 0; otherwise in user mode
+ * -1 is returned and errno is set to indicate the error; in kernel mode the
+ * negative of one of the following errors is returned.
+ *
+ * Errors:
+ * EBADF, ENOTTY - epd is not a valid endpoint descriptor
+ */
+int scif_close(scif_epd_t epd);
+
+/**
+ * scif_send() - Send a message
+ * @epd: endpoint descriptor
+ * @msg: message buffer address
+ * @len: message length
+ * @flags: blocking mode flags
+ *
+ * scif_send() sends data to the peer of endpoint epd. Up to len bytes of data
+ * are copied from memory starting at address msg. On successful execution the
+ * return value of scif_send() is the number of bytes that were sent, and is
+ * zero if no bytes were sent because len was zero. scif_send() may be called
+ * only when the endpoint is in a connected state.
+ *
+ * If a scif_send() call is non-blocking, then it sends only those bytes which
+ * can be sent without waiting, up to a maximum of len bytes.
+ *
+ * If a scif_send() call is blocking, then it normally returns after sending
+ * all len bytes. If a blocking call is interrupted or the connection is
+ * reset, the call is considered successful if some bytes were sent or len is
+ * zero, otherwise the call is considered unsuccessful.
+ *
+ * In user mode, the select() and poll() functions can be used to determine
+ * when the send queue is not full. In kernel mode, the scif_poll() function
+ * may be used for this purpose.
+ *
+ * It is recommended that scif_send()/scif_recv() only be used for short
+ * control-type message communication between SCIF endpoints. The SCIF RMA
+ * APIs are expected to provide better performance for transfer sizes of
+ * 1024 bytes or longer for the current MIC hardware and software
+ * implementation.
+ *
+ * scif_send() will block until the entire message is sent if SCIF_SEND_BLOCK
+ * is passed as the flags argument.
+ *
+ * Return:
+ * Upon successful completion, scif_send() returns the number of bytes sent;
+ * otherwise in user mode -1 is returned and errno is set to indicate the
+ * error; in kernel mode the negative of one of the following errors is
+ * returned.
+ *
+ * Errors:
+ * EBADF, ENOTTY - epd is not a valid endpoint descriptor
+ * ECONNRESET - Connection reset by peer
+ * EFAULT - An invalid address was specified for a parameter
+ * EINVAL - flags is invalid, or len is negative
+ * ENODEV - The remote node is lost or existed, but is not currently in the
+ * network since it may have crashed
+ * ENOMEM - Not enough space
+ * ENOTCONN - The endpoint is not connected
+ */
+int scif_send(scif_epd_t epd, void *msg, int len, int flags);
+
+/**
+ * scif_recv() - Receive a message
+ * @epd: endpoint descriptor
+ * @msg: message buffer address
+ * @len: message buffer length
+ * @flags: blocking mode flags
+ *
+ * scif_recv() receives data from the peer of endpoint epd. Up to len bytes of
+ * data are copied to memory starting at address msg. On successful execution
+ * the return value of scif_recv() is the number of bytes that were received,
+ * and is zero if no bytes were received because len was zero. scif_recv() may
+ * be called only when the endpoint is in a connected state.
+ *
+ * If a scif_recv() call is non-blocking, then it receives only those bytes
+ * which can be received without waiting, up to a maximum of len bytes.
+ *
+ * If a scif_recv() call is blocking, then it normally returns after receiving
+ * all len bytes. If the blocking call was interrupted due to a disconnection,
+ * subsequent calls to scif_recv() will copy all bytes received upto the point
+ * of disconnection.
+ *
+ * In user mode, the select() and poll() functions can be used to determine
+ * when data is available to be received. In kernel mode, the scif_poll()
+ * function may be used for this purpose.
+ *
+ * It is recommended that scif_send()/scif_recv() only be used for short
+ * control-type message communication between SCIF endpoints. The SCIF RMA
+ * APIs are expected to provide better performance for transfer sizes of
+ * 1024 bytes or longer for the current MIC hardware and software
+ * implementation.
+ *
+ * scif_recv() will block until the entire message is received if
+ * SCIF_RECV_BLOCK is passed as the flags argument.
+ *
+ * Return:
+ * Upon successful completion, scif_recv() returns the number of bytes
+ * received; otherwise in user mode -1 is returned and errno is set to
+ * indicate the error; in kernel mode the negative of one of the following
+ * errors is returned.
+ *
+ * Errors:
+ * EAGAIN - The destination node is returning from a low power state
+ * EBADF, ENOTTY - epd is not a valid endpoint descriptor
+ * ECONNRESET - Connection reset by peer
+ * EFAULT - An invalid address was specified for a parameter
+ * EINVAL - flags is invalid, or len is negative
+ * ENODEV - The remote node is lost or existed, but is not currently in the
+ * network since it may have crashed
+ * ENOMEM - Not enough space
+ * ENOTCONN - The endpoint is not connected
+ */
+int scif_recv(scif_epd_t epd, void *msg, int len, int flags);
+
+/**
+ * scif_register() - Mark a memory region for remote access.
+ * @epd: endpoint descriptor
+ * @addr: starting virtual address
+ * @len: length of range
+ * @offset: offset of window
+ * @prot_flags: read/write protection flags
+ * @map_flags: mapping flags
+ *
+ * The scif_register() function opens a window, a range of whole pages of the
+ * registered address space of the endpoint epd, starting at offset po and
+ * continuing for len bytes. The value of po, further described below, is a
+ * function of the parameters offset and len, and the value of map_flags. Each
+ * page of the window represents the physical memory page which backs the
+ * corresponding page of the range of virtual address pages starting at addr
+ * and continuing for len bytes. addr and len are constrained to be multiples
+ * of the page size. A successful scif_register() call returns po.
+ *
+ * When SCIF_MAP_FIXED is set in the map_flags argument, po will be offset
+ * exactly, and offset is constrained to be a multiple of the page size. The
+ * mapping established by scif_register() will not replace any existing
+ * registration; an error is returned if any page within the range [offset,
+ * offset + len - 1] intersects an existing window.
+ *
+ * When SCIF_MAP_FIXED is not set, the implementation uses offset in an
+ * implementation-defined manner to arrive at po. The po value so chosen will
+ * be an area of the registered address space that the implementation deems
+ * suitable for a mapping of len bytes. An offset value of 0 is interpreted as
+ * granting the implementation complete freedom in selecting po, subject to
+ * constraints described below. A non-zero value of offset is taken to be a
+ * suggestion of an offset near which the mapping should be placed. When the
+ * implementation selects a value for po, it does not replace any extant
+ * window. In all cases, po will be a multiple of the page size.
+ *
+ * The physical pages which are so represented by a window are available for
+ * access in calls to mmap(), scif_readfrom(), scif_writeto(),
+ * scif_vreadfrom(), and scif_vwriteto(). While a window is registered, the
+ * physical pages represented by the window will not be reused by the memory
+ * subsystem for any other purpose. Note that the same physical page may be
+ * represented by multiple windows.
+ *
+ * Subsequent operations which change the memory pages to which virtual
+ * addresses are mapped (such as mmap(), munmap()) have no effect on
+ * existing window.
+ *
+ * If the process will fork(), it is recommended that the registered
+ * virtual address range be marked with MADV_DONTFORK. Doing so will prevent
+ * problems due to copy-on-write semantics.
+ *
+ * The prot_flags argument is formed by OR'ing together one or more of the
+ * following values.
+ * SCIF_PROT_READ - allow read operations from the window
+ * SCIF_PROT_WRITE - allow write operations to the window
+ *
+ * The map_flags argument can be set to SCIF_MAP_FIXED which interprets a
+ * fixed offset.
+ *
+ * Return:
+ * Upon successful completion, scif_register() returns the offset at which the
+ * mapping was placed (po); otherwise in user mode SCIF_REGISTER_FAILED (that
+ * is (off_t *)-1) is returned and errno is set to indicate the error; in
+ * kernel mode the negative of one of the following errors is returned.
+ *
+ * Errors:
+ * EADDRINUSE - SCIF_MAP_FIXED is set in map_flags, and pages in the range
+ * [offset, offset + len -1] are already registered
+ * EAGAIN - The mapping could not be performed due to lack of resources
+ * EBADF, ENOTTY - epd is not a valid endpoint descriptor
+ * ECONNRESET - Connection reset by peer
+ * EFAULT - Addresses in the range [addr, addr + len - 1] are invalid
+ * EINVAL - map_flags is invalid, or prot_flags is invalid, or SCIF_MAP_FIXED is
+ * set in flags, and offset is not a multiple of the page size, or addr is not a
+ * multiple of the page size, or len is not a multiple of the page size, or is
+ * 0, or offset is negative
+ * ENODEV - The remote node is lost or existed, but is not currently in the
+ * network since it may have crashed
+ * ENOMEM - Not enough space
+ * ENOTCONN -The endpoint is not connected
+ */
+off_t scif_register(scif_epd_t epd, void *addr, size_t len, off_t offset,
+ int prot_flags, int map_flags);
+
+/**
+ * scif_unregister() - Mark a memory region for remote access.
+ * @epd: endpoint descriptor
+ * @offset: start of range to unregister
+ * @len: length of range to unregister
+ *
+ * The scif_unregister() function closes those previously registered windows
+ * which are entirely within the range [offset, offset + len - 1]. It is an
+ * error to specify a range which intersects only a subrange of a window.
+ *
+ * On a successful return, pages within the window may no longer be specified
+ * in calls to mmap(), scif_readfrom(), scif_writeto(), scif_vreadfrom(),
+ * scif_vwriteto(), scif_get_pages, and scif_fence_signal(). The window,
+ * however, continues to exist until all previous references against it are
+ * removed. A window is referenced if there is a mapping to it created by
+ * mmap(), or if scif_get_pages() was called against the window
+ * (and the pages have not been returned via scif_put_pages()). A window is
+ * also referenced while an RMA, in which some range of the window is a source
+ * or destination, is in progress. Finally a window is referenced while some
+ * offset in that window was specified to scif_fence_signal(), and the RMAs
+ * marked by that call to scif_fence_signal() have not completed. While a
+ * window is in this state, its registered address space pages are not
+ * available for use in a new registered window.
+ *
+ * When all such references to the window have been removed, its references to
+ * all the physical pages which it represents are removed. Similarly, the
+ * registered address space pages of the window become available for
+ * registration in a new window.
+ *
+ * Return:
+ * Upon successful completion, scif_unregister() returns 0; otherwise in user
+ * mode -1 is returned and errno is set to indicate the error; in kernel mode
+ * the negative of one of the following errors is returned. In the event of an
+ * error, no windows are unregistered.
+ *
+ * Errors:
+ * EBADF, ENOTTY - epd is not a valid endpoint descriptor
+ * ECONNRESET - Connection reset by peer
+ * EINVAL - the range [offset, offset + len - 1] intersects a subrange of a
+ * window, or offset is negative
+ * ENODEV - The remote node is lost or existed, but is not currently in the
+ * network since it may have crashed
+ * ENOTCONN - The endpoint is not connected
+ * ENXIO - Offsets in the range [offset, offset + len - 1] are invalid for the
+ * registered address space of epd
+ */
+int scif_unregister(scif_epd_t epd, off_t offset, size_t len);
+
+/**
+ * scif_readfrom() - Copy from a remote address space
+ * @epd: endpoint descriptor
+ * @loffset: offset in local registered address space to
+ * which to copy
+ * @len: length of range to copy
+ * @roffset: offset in remote registered address space
+ * from which to copy
+ * @rma_flags: transfer mode flags
+ *
+ * scif_readfrom() copies len bytes from the remote registered address space of
+ * the peer of endpoint epd, starting at the offset roffset to the local
+ * registered address space of epd, starting at the offset loffset.
+ *
+ * Each of the specified ranges [loffset, loffset + len - 1] and [roffset,
+ * roffset + len - 1] must be within some registered window or windows of the
+ * local and remote nodes. A range may intersect multiple registered windows,
+ * but only if those windows are contiguous in the registered address space.
+ *
+ * If rma_flags includes SCIF_RMA_USECPU, then the data is copied using
+ * programmed read/writes. Otherwise the data is copied using DMA. If rma_-
+ * flags includes SCIF_RMA_SYNC, then scif_readfrom() will return after the
+ * transfer is complete. Otherwise, the transfer may be performed asynchron-
+ * ously. The order in which any two asynchronous RMA operations complete
+ * is non-deterministic. The synchronization functions, scif_fence_mark()/
+ * scif_fence_wait() and scif_fence_signal(), can be used to synchronize to
+ * the completion of asynchronous RMA operations on the same endpoint.
+ *
+ * The DMA transfer of individual bytes is not guaranteed to complete in
+ * address order. If rma_flags includes SCIF_RMA_ORDERED, then the last
+ * cacheline or partial cacheline of the source range will become visible on
+ * the destination node after all other transferred data in the source
+ * range has become visible on the destination node.
+ *
+ * The optimal DMA performance will likely be realized if both
+ * loffset and roffset are cacheline aligned (are a multiple of 64). Lower
+ * performance will likely be realized if loffset and roffset are not
+ * cacheline aligned but are separated by some multiple of 64. The lowest level
+ * of performance is likely if loffset and roffset are not separated by a
+ * multiple of 64.
+ *
+ * The rma_flags argument is formed by ORing together zero or more of the
+ * following values.
+ * SCIF_RMA_USECPU - perform the transfer using the CPU, otherwise use the DMA
+ * engine.
+ * SCIF_RMA_SYNC - perform the transfer synchronously, returning after the
+ * transfer has completed. Passing this flag results in the
+ * current implementation busy waiting and consuming CPU cycles
+ * while the DMA transfer is in progress for best performance by
+ * avoiding the interrupt latency.
+ * SCIF_RMA_ORDERED - ensure that the last cacheline or partial cacheline of
+ * the source range becomes visible on the destination node
+ * after all other transferred data in the source range has
+ * become visible on the destination
+ *
+ * Return:
+ * Upon successful completion, scif_readfrom() returns 0; otherwise in user
+ * mode -1 is returned and errno is set to indicate the error; in kernel mode
+ * the negative of one of the following errors is returned.
+ *
+ * Errors:
+ * EACCESS - Attempt to write to a read-only range
+ * EBADF, ENOTTY - epd is not a valid endpoint descriptor
+ * ECONNRESET - Connection reset by peer
+ * EINVAL - rma_flags is invalid
+ * ENODEV - The remote node is lost or existed, but is not currently in the
+ * network since it may have crashed
+ * ENOTCONN - The endpoint is not connected
+ * ENXIO - The range [loffset, loffset + len - 1] is invalid for the registered
+ * address space of epd, or, The range [roffset, roffset + len - 1] is invalid
+ * for the registered address space of the peer of epd, or loffset or roffset
+ * is negative
+ */
+int scif_readfrom(scif_epd_t epd, off_t loffset, size_t len, off_t
+ roffset, int rma_flags);
+
+/**
+ * scif_writeto() - Copy to a remote address space
+ * @epd: endpoint descriptor
+ * @loffset: offset in local registered address space
+ * from which to copy
+ * @len: length of range to copy
+ * @roffset: offset in remote registered address space to
+ * which to copy
+ * @rma_flags: transfer mode flags
+ *
+ * scif_writeto() copies len bytes from the local registered address space of
+ * epd, starting at the offset loffset to the remote registered address space
+ * of the peer of endpoint epd, starting at the offset roffset.
+ *
+ * Each of the specified ranges [loffset, loffset + len - 1] and [roffset,
+ * roffset + len - 1] must be within some registered window or windows of the
+ * local and remote nodes. A range may intersect multiple registered windows,
+ * but only if those windows are contiguous in the registered address space.
+ *
+ * If rma_flags includes SCIF_RMA_USECPU, then the data is copied using
+ * programmed read/writes. Otherwise the data is copied using DMA. If rma_-
+ * flags includes SCIF_RMA_SYNC, then scif_writeto() will return after the
+ * transfer is complete. Otherwise, the transfer may be performed asynchron-
+ * ously. The order in which any two asynchronous RMA operations complete
+ * is non-deterministic. The synchronization functions, scif_fence_mark()/
+ * scif_fence_wait() and scif_fence_signal(), can be used to synchronize to
+ * the completion of asynchronous RMA operations on the same endpoint.
+ *
+ * The DMA transfer of individual bytes is not guaranteed to complete in
+ * address order. If rma_flags includes SCIF_RMA_ORDERED, then the last
+ * cacheline or partial cacheline of the source range will become visible on
+ * the destination node after all other transferred data in the source
+ * range has become visible on the destination node.
+ *
+ * The optimal DMA performance will likely be realized if both
+ * loffset and roffset are cacheline aligned (are a multiple of 64). Lower
+ * performance will likely be realized if loffset and roffset are not cacheline
+ * aligned but are separated by some multiple of 64. The lowest level of
+ * performance is likely if loffset and roffset are not separated by a multiple
+ * of 64.
+ *
+ * The rma_flags argument is formed by ORing together zero or more of the
+ * following values.
+ * SCIF_RMA_USECPU - perform the transfer using the CPU, otherwise use the DMA
+ * engine.
+ * SCIF_RMA_SYNC - perform the transfer synchronously, returning after the
+ * transfer has completed. Passing this flag results in the
+ * current implementation busy waiting and consuming CPU cycles
+ * while the DMA transfer is in progress for best performance by
+ * avoiding the interrupt latency.
+ * SCIF_RMA_ORDERED - ensure that the last cacheline or partial cacheline of
+ * the source range becomes visible on the destination node
+ * after all other transferred data in the source range has
+ * become visible on the destination
+ *
+ * Return:
+ * Upon successful completion, scif_readfrom() returns 0; otherwise in user
+ * mode -1 is returned and errno is set to indicate the error; in kernel mode
+ * the negative of one of the following errors is returned.
+ *
+ * Errors:
+ * EACCESS - Attempt to write to a read-only range
+ * EBADF, ENOTTY - epd is not a valid endpoint descriptor
+ * ECONNRESET - Connection reset by peer
+ * EINVAL - rma_flags is invalid
+ * ENODEV - The remote node is lost or existed, but is not currently in the
+ * network since it may have crashed
+ * ENOTCONN - The endpoint is not connected
+ * ENXIO - The range [loffset, loffset + len - 1] is invalid for the registered
+ * address space of epd, or, The range [roffset , roffset + len -1] is invalid
+ * for the registered address space of the peer of epd, or loffset or roffset
+ * is negative
+ */
+int scif_writeto(scif_epd_t epd, off_t loffset, size_t len, off_t
+ roffset, int rma_flags);
+
+/**
+ * scif_vreadfrom() - Copy from a remote address space
+ * @epd: endpoint descriptor
+ * @addr: address to which to copy
+ * @len: length of range to copy
+ * @roffset: offset in remote registered address space
+ * from which to copy
+ * @rma_flags: transfer mode flags
+ *
+ * scif_vreadfrom() copies len bytes from the remote registered address
+ * space of the peer of endpoint epd, starting at the offset roffset, to local
+ * memory, starting at addr.
+ *
+ * The specified range [roffset, roffset + len - 1] must be within some
+ * registered window or windows of the remote nodes. The range may
+ * intersect multiple registered windows, but only if those windows are
+ * contiguous in the registered address space.
+ *
+ * If rma_flags includes SCIF_RMA_USECPU, then the data is copied using
+ * programmed read/writes. Otherwise the data is copied using DMA. If rma_-
+ * flags includes SCIF_RMA_SYNC, then scif_vreadfrom() will return after the
+ * transfer is complete. Otherwise, the transfer may be performed asynchron-
+ * ously. The order in which any two asynchronous RMA operations complete
+ * is non-deterministic. The synchronization functions, scif_fence_mark()/
+ * scif_fence_wait() and scif_fence_signal(), can be used to synchronize to
+ * the completion of asynchronous RMA operations on the same endpoint.
+ *
+ * The DMA transfer of individual bytes is not guaranteed to complete in
+ * address order. If rma_flags includes SCIF_RMA_ORDERED, then the last
+ * cacheline or partial cacheline of the source range will become visible on
+ * the destination node after all other transferred data in the source
+ * range has become visible on the destination node.
+ *
+ * If rma_flags includes SCIF_RMA_USECACHE, then the physical pages which back
+ * the specified local memory range may be remain in a pinned state even after
+ * the specified transfer completes. This may reduce overhead if some or all of
+ * the same virtual address range is referenced in a subsequent call of
+ * scif_vreadfrom() or scif_vwriteto().
+ *
+ * The optimal DMA performance will likely be realized if both
+ * addr and roffset are cacheline aligned (are a multiple of 64). Lower
+ * performance will likely be realized if addr and roffset are not
+ * cacheline aligned but are separated by some multiple of 64. The lowest level
+ * of performance is likely if addr and roffset are not separated by a
+ * multiple of 64.
+ *
+ * The rma_flags argument is formed by ORing together zero or more of the
+ * following values.
+ * SCIF_RMA_USECPU - perform the transfer using the CPU, otherwise use the DMA
+ * engine.
+ * SCIF_RMA_USECACHE - enable registration caching
+ * SCIF_RMA_SYNC - perform the transfer synchronously, returning after the
+ * transfer has completed. Passing this flag results in the
+ * current implementation busy waiting and consuming CPU cycles
+ * while the DMA transfer is in progress for best performance by
+ * avoiding the interrupt latency.
+ * SCIF_RMA_ORDERED - ensure that the last cacheline or partial cacheline of
+ * the source range becomes visible on the destination node
+ * after all other transferred data in the source range has
+ * become visible on the destination
+ *
+ * Return:
+ * Upon successful completion, scif_vreadfrom() returns 0; otherwise in user
+ * mode -1 is returned and errno is set to indicate the error; in kernel mode
+ * the negative of one of the following errors is returned.
+ *
+ * Errors:
+ * EACCESS - Attempt to write to a read-only range
+ * EBADF, ENOTTY - epd is not a valid endpoint descriptor
+ * ECONNRESET - Connection reset by peer
+ * EFAULT - Addresses in the range [addr, addr + len - 1] are invalid
+ * EINVAL - rma_flags is invalid
+ * ENODEV - The remote node is lost or existed, but is not currently in the
+ * network since it may have crashed
+ * ENOTCONN - The endpoint is not connected
+ * ENXIO - Offsets in the range [roffset, roffset + len - 1] are invalid for the
+ * registered address space of epd
+ */
+int scif_vreadfrom(scif_epd_t epd, void *addr, size_t len, off_t roffset,
+ int rma_flags);
+
+/**
+ * scif_vwriteto() - Copy to a remote address space
+ * @epd: endpoint descriptor
+ * @addr: address from which to copy
+ * @len: length of range to copy
+ * @roffset: offset in remote registered address space to
+ * which to copy
+ * @rma_flags: transfer mode flags
+ *
+ * scif_vwriteto() copies len bytes from the local memory, starting at addr, to
+ * the remote registered address space of the peer of endpoint epd, starting at
+ * the offset roffset.
+ *
+ * The specified range [roffset, roffset + len - 1] must be within some
+ * registered window or windows of the remote nodes. The range may intersect
+ * multiple registered windows, but only if those windows are contiguous in the
+ * registered address space.
+ *
+ * If rma_flags includes SCIF_RMA_USECPU, then the data is copied using
+ * programmed read/writes. Otherwise the data is copied using DMA. If rma_-
+ * flags includes SCIF_RMA_SYNC, then scif_vwriteto() will return after the
+ * transfer is complete. Otherwise, the transfer may be performed asynchron-
+ * ously. The order in which any two asynchronous RMA operations complete
+ * is non-deterministic. The synchronization functions, scif_fence_mark()/
+ * scif_fence_wait() and scif_fence_signal(), can be used to synchronize to
+ * the completion of asynchronous RMA operations on the same endpoint.
+ *
+ * The DMA transfer of individual bytes is not guaranteed to complete in
+ * address order. If rma_flags includes SCIF_RMA_ORDERED, then the last
+ * cacheline or partial cacheline of the source range will become visible on
+ * the destination node after all other transferred data in the source
+ * range has become visible on the destination node.
+ *
+ * If rma_flags includes SCIF_RMA_USECACHE, then the physical pages which back
+ * the specified local memory range may be remain in a pinned state even after
+ * the specified transfer completes. This may reduce overhead if some or all of
+ * the same virtual address range is referenced in a subsequent call of
+ * scif_vreadfrom() or scif_vwriteto().
+ *
+ * The optimal DMA performance will likely be realized if both
+ * addr and offset are cacheline aligned (are a multiple of 64). Lower
+ * performance will likely be realized if addr and offset are not cacheline
+ * aligned but are separated by some multiple of 64. The lowest level of
+ * performance is likely if addr and offset are not separated by a multiple of
+ * 64.
+ *
+ * The rma_flags argument is formed by ORing together zero or more of the
+ * following values.
+ * SCIF_RMA_USECPU - perform the transfer using the CPU, otherwise use the DMA
+ * engine.
+ * SCIF_RMA_USECACHE - allow registration caching
+ * SCIF_RMA_SYNC - perform the transfer synchronously, returning after the
+ * transfer has completed. Passing this flag results in the
+ * current implementation busy waiting and consuming CPU cycles
+ * while the DMA transfer is in progress for best performance by
+ * avoiding the interrupt latency.
+ * SCIF_RMA_ORDERED - ensure that the last cacheline or partial cacheline of
+ * the source range becomes visible on the destination node
+ * after all other transferred data in the source range has
+ * become visible on the destination
+ *
+ * Return:
+ * Upon successful completion, scif_vwriteto() returns 0; otherwise in user
+ * mode -1 is returned and errno is set to indicate the error; in kernel mode
+ * the negative of one of the following errors is returned.
+ *
+ * Errors:
+ * EACCESS - Attempt to write to a read-only range
+ * EBADF, ENOTTY - epd is not a valid endpoint descriptor
+ * ECONNRESET - Connection reset by peer
+ * EFAULT - Addresses in the range [addr, addr + len - 1] are invalid
+ * EINVAL - rma_flags is invalid
+ * ENODEV - The remote node is lost or existed, but is not currently in the
+ * network since it may have crashed
+ * ENOTCONN - The endpoint is not connected
+ * ENXIO - Offsets in the range [roffset, roffset + len - 1] are invalid for the
+ * registered address space of epd
+ */
+int scif_vwriteto(scif_epd_t epd, void *addr, size_t len, off_t roffset,
+ int rma_flags);
+
+/**
+ * scif_fence_mark() - Mark previously issued RMAs
+ * @epd: endpoint descriptor
+ * @flags: control flags
+ * @mark: marked value returned as output.
+ *
+ * scif_fence_mark() returns after marking the current set of all uncompleted
+ * RMAs initiated through the endpoint epd or the current set of all
+ * uncompleted RMAs initiated through the peer of endpoint epd. The RMAs are
+ * marked with a value returned at mark. The application may subsequently call
+ * scif_fence_wait(), passing the value returned at mark, to await completion
+ * of all RMAs so marked.
+ *
+ * The flags argument has exactly one of the following values.
+ * SCIF_FENCE_INIT_SELF - RMA operations initiated through endpoint
+ * epd are marked
+ * SCIF_FENCE_INIT_PEER - RMA operations initiated through the peer
+ * of endpoint epd are marked
+ *
+ * Return:
+ * Upon successful completion, scif_fence_mark() returns 0; otherwise in user
+ * mode -1 is returned and errno is set to indicate the error; in kernel mode
+ * the negative of one of the following errors is returned.
+ *
+ * Errors:
+ * EBADF, ENOTTY - epd is not a valid endpoint descriptor
+ * ECONNRESET - Connection reset by peer
+ * EINVAL - flags is invalid
+ * ENODEV - The remote node is lost or existed, but is not currently in the
+ * network since it may have crashed
+ * ENOTCONN - The endpoint is not connected
+ * ENOMEM - Insufficient kernel memory was available
+ */
+int scif_fence_mark(scif_epd_t epd, int flags, int *mark);
+
+/**
+ * scif_fence_wait() - Wait for completion of marked RMAs
+ * @epd: endpoint descriptor
+ * @mark: mark request
+ *
+ * scif_fence_wait() returns after all RMAs marked with mark have completed.
+ * The value passed in mark must have been obtained in a previous call to
+ * scif_fence_mark().
+ *
+ * Return:
+ * Upon successful completion, scif_fence_wait() returns 0; otherwise in user
+ * mode -1 is returned and errno is set to indicate the error; in kernel mode
+ * the negative of one of the following errors is returned.
+ *
+ * Errors:
+ * EBADF, ENOTTY - epd is not a valid endpoint descriptor
+ * ECONNRESET - Connection reset by peer
+ * ENODEV - The remote node is lost or existed, but is not currently in the
+ * network since it may have crashed
+ * ENOTCONN - The endpoint is not connected
+ * ENOMEM - Insufficient kernel memory was available
+ */
+int scif_fence_wait(scif_epd_t epd, int mark);
+
+/**
+ * scif_fence_signal() - Request a memory update on completion of RMAs
+ * @epd: endpoint descriptor
+ * @loff: local offset
+ * @lval: local value to write to loffset
+ * @roff: remote offset
+ * @rval: remote value to write to roffset
+ * @flags: flags
+ *
+ * scif_fence_signal() returns after marking the current set of all uncompleted
+ * RMAs initiated through the endpoint epd or marking the current set of all
+ * uncompleted RMAs initiated through the peer of endpoint epd.
+ *
+ * If flags includes SCIF_SIGNAL_LOCAL, then on completion of the RMAs in the
+ * marked set, lval is written to memory at the address corresponding to offset
+ * loff in the local registered address space of epd. loff must be within a
+ * registered window. If flags includes SCIF_SIGNAL_REMOTE, then on completion
+ * of the RMAs in the marked set, rval is written to memory at the address
+ * corresponding to offset roff in the remote registered address space of epd.
+ * roff must be within a remote registered window of the peer of epd. Note
+ * that any specified offset must be DWORD (4 byte / 32 bit) aligned.
+ *
+ * The flags argument is formed by OR'ing together the following.
+ * Exactly one of the following values.
+ * SCIF_FENCE_INIT_SELF - RMA operations initiated through endpoint
+ * epd are marked
+ * SCIF_FENCE_INIT_PEER - RMA operations initiated through the peer
+ * of endpoint epd are marked
+ * One or more of the following values.
+ * SCIF_SIGNAL_LOCAL - On completion of the marked set of RMAs, write lval to
+ * memory at the address corresponding to offset loff in the local
+ * registered address space of epd.
+ * SCIF_SIGNAL_REMOTE - On completion of the marked set of RMAs, write rval to
+ * memory at the address corresponding to offset roff in the remote
+ * registered address space of epd.
+ *
+ * Return:
+ * Upon successful completion, scif_fence_signal() returns 0; otherwise in
+ * user mode -1 is returned and errno is set to indicate the error; in kernel
+ * mode the negative of one of the following errors is returned.
+ *
+ * Errors:
+ * EBADF, ENOTTY - epd is not a valid endpoint descriptor
+ * ECONNRESET - Connection reset by peer
+ * EINVAL - flags is invalid, or loff or roff are not DWORD aligned
+ * ENODEV - The remote node is lost or existed, but is not currently in the
+ * network since it may have crashed
+ * ENOTCONN - The endpoint is not connected
+ * ENXIO - loff is invalid for the registered address of epd, or roff is invalid
+ * for the registered address space, of the peer of epd
+ */
+int scif_fence_signal(scif_epd_t epd, off_t loff, u64 lval, off_t roff,
+ u64 rval, int flags);
+
+/**
+ * scif_get_node_ids() - Return information about online nodes
+ * @nodes: array in which to return online node IDs
+ * @len: number of entries in the nodes array
+ * @self: address to place the node ID of the local node
+ *
+ * scif_get_node_ids() fills in the nodes array with up to len node IDs of the
+ * nodes in the SCIF network. If there is not enough space in nodes, as
+ * indicated by the len parameter, only len node IDs are returned in nodes. The
+ * return value of scif_get_node_ids() is the total number of nodes currently in
+ * the SCIF network. By checking the return value against the len parameter,
+ * the user may determine if enough space for nodes was allocated.
+ *
+ * The node ID of the local node is returned at self.
+ *
+ * Return:
+ * Upon successful completion, scif_get_node_ids() returns the actual number of
+ * online nodes in the SCIF network including 'self'; otherwise in user mode
+ * -1 is returned and errno is set to indicate the error; in kernel mode no
+ * errors are returned.
+ *
+ * Errors:
+ * EFAULT - Bad address
+ */
+int scif_get_node_ids(u16 *nodes, int len, u16 *self);
+
+#endif /* __SCIF_H__ */
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 4460e5820b0e..baa7c80da6af 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -352,6 +352,7 @@ header-y += rtc.h
header-y += rtnetlink.h
header-y += scc.h
header-y += sched.h
+header-y += scif_ioctl.h
header-y += screen_info.h
header-y += sctp.h
header-y += sdla.h
diff --git a/include/uapi/linux/hyperv.h b/include/uapi/linux/hyperv.h
index bb1cb73c927a..e4c0a35d6417 100644
--- a/include/uapi/linux/hyperv.h
+++ b/include/uapi/linux/hyperv.h
@@ -45,6 +45,11 @@
#define VSS_OP_REGISTER 128
+/*
+ Daemon code with full handshake support.
+ */
+#define VSS_OP_REGISTER1 129
+
enum hv_vss_op {
VSS_OP_CREATE = 0,
VSS_OP_DELETE,
@@ -100,7 +105,8 @@ struct hv_vss_msg {
*/
#define FCOPY_VERSION_0 0
-#define FCOPY_CURRENT_VERSION FCOPY_VERSION_0
+#define FCOPY_VERSION_1 1
+#define FCOPY_CURRENT_VERSION FCOPY_VERSION_1
#define W_MAX_PATH 260
enum hv_fcopy_op {
diff --git a/include/uapi/linux/mic_common.h b/include/uapi/linux/mic_common.h
index 6eb40244e019..302a2ced373c 100644
--- a/include/uapi/linux/mic_common.h
+++ b/include/uapi/linux/mic_common.h
@@ -80,6 +80,12 @@ struct mic_device_ctrl {
* @h2c_config_db: Host to Card Virtio config doorbell set by card
* @shutdown_status: Card shutdown status set by card
* @shutdown_card: Set to 1 by the host when a card shutdown is initiated
+ * @tot_nodes: Total number of nodes in the SCIF network
+ * @node_id: Unique id of the node
+ * @h2c_scif_db - Host to card SCIF doorbell set by card
+ * @c2h_scif_db - Card to host SCIF doorbell set by host
+ * @scif_host_dma_addr - SCIF host queue pair DMA address
+ * @scif_card_dma_addr - SCIF card queue pair DMA address
*/
struct mic_bootparam {
__le32 magic;
@@ -88,6 +94,12 @@ struct mic_bootparam {
__s8 h2c_config_db;
__u8 shutdown_status;
__u8 shutdown_card;
+ __u8 tot_nodes;
+ __u8 node_id;
+ __u8 h2c_scif_db;
+ __u8 c2h_scif_db;
+ __u64 scif_host_dma_addr;
+ __u64 scif_card_dma_addr;
} __attribute__ ((aligned(8)));
/**
diff --git a/include/uapi/linux/scif_ioctl.h b/include/uapi/linux/scif_ioctl.h
new file mode 100644
index 000000000000..4a94d917cf99
--- /dev/null
+++ b/include/uapi/linux/scif_ioctl.h
@@ -0,0 +1,130 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Intel SCIF driver.
+ *
+ */
+/*
+ * -----------------------------------------
+ * SCIF IOCTL interface information
+ * -----------------------------------------
+ */
+#ifndef SCIF_IOCTL_H
+#define SCIF_IOCTL_H
+
+#include <linux/types.h>
+
+/**
+ * struct scif_port_id - SCIF port information
+ * @node: node on which port resides
+ * @port: local port number
+ */
+struct scif_port_id {
+ __u16 node;
+ __u16 port;
+};
+
+/**
+ * struct scifioctl_connect - used for SCIF_CONNECT IOCTL
+ * @self: used to read back the assigned port_id
+ * @peer: destination node and port to connect to
+ */
+struct scifioctl_connect {
+ struct scif_port_id self;
+ struct scif_port_id peer;
+};
+
+/**
+ * struct scifioctl_accept - used for SCIF_ACCEPTREQ IOCTL
+ * @flags: flags
+ * @peer: global id of peer endpoint
+ * @endpt: new connected endpoint descriptor
+ */
+struct scifioctl_accept {
+ __s32 flags;
+ struct scif_port_id peer;
+ __u64 endpt;
+};
+
+/**
+ * struct scifioctl_msg - used for SCIF_SEND/SCIF_RECV IOCTL
+ * @msg: message buffer address
+ * @len: message length
+ * @flags: flags
+ * @out_len: number of bytes sent/received
+ */
+struct scifioctl_msg {
+ __u64 msg;
+ __s32 len;
+ __s32 flags;
+ __s32 out_len;
+};
+
+/**
+ * struct scifioctl_node_ids - used for SCIF_GET_NODEIDS IOCTL
+ * @nodes: pointer to an array of node_ids
+ * @self: ID of the current node
+ * @len: length of array
+ */
+struct scifioctl_node_ids {
+ __u64 nodes;
+ __u64 self;
+ __s32 len;
+};
+
+#define SCIF_BIND _IOWR('s', 1, __u64)
+#define SCIF_LISTEN _IOW('s', 2, __s32)
+#define SCIF_CONNECT _IOWR('s', 3, struct scifioctl_connect)
+#define SCIF_ACCEPTREQ _IOWR('s', 4, struct scifioctl_accept)
+#define SCIF_ACCEPTREG _IOWR('s', 5, __u64)
+#define SCIF_SEND _IOWR('s', 6, struct scifioctl_msg)
+#define SCIF_RECV _IOWR('s', 7, struct scifioctl_msg)
+#define SCIF_GET_NODEIDS _IOWR('s', 14, struct scifioctl_node_ids)
+
+#endif /* SCIF_IOCTL_H */