linux/drivers/vfio/mdev/mdev_sysfs.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * File attributes for Mediated devices
 *
 * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
 *     Author: Neo Jia <[email protected]>
 *             Kirti Wankhede <[email protected]>
 */

#include <linux/sysfs.h>
#include <linux/ctype.h>
#include <linux/slab.h>
#include <linux/mdev.h>

#include "mdev_private.h"

struct mdev_type_attribute { … };

#define MDEV_TYPE_ATTR_RO(_name) …
#define MDEV_TYPE_ATTR_WO(_name) …

static ssize_t mdev_type_attr_show(struct kobject *kobj,
				     struct attribute *__attr, char *buf)
{ … }

static ssize_t mdev_type_attr_store(struct kobject *kobj,
				      struct attribute *__attr,
				      const char *buf, size_t count)
{ … }

static const struct sysfs_ops mdev_type_sysfs_ops = …;

static ssize_t create_store(struct mdev_type *mtype,
			    struct mdev_type_attribute *attr, const char *buf,
			    size_t count)
{ … }
static MDEV_TYPE_ATTR_WO(create);

static ssize_t device_api_show(struct mdev_type *mtype,
			       struct mdev_type_attribute *attr, char *buf)
{ … }
static MDEV_TYPE_ATTR_RO(device_api);

static ssize_t name_show(struct mdev_type *mtype,
			 struct mdev_type_attribute *attr, char *buf)
{ … }

static MDEV_TYPE_ATTR_RO(name);

static ssize_t available_instances_show(struct mdev_type *mtype,
					struct mdev_type_attribute *attr,
					char *buf)
{ … }
static MDEV_TYPE_ATTR_RO(available_instances);

static ssize_t description_show(struct mdev_type *mtype,
				struct mdev_type_attribute *attr,
				char *buf)
{ … }
static MDEV_TYPE_ATTR_RO(description);

static struct attribute *mdev_types_core_attrs[] = …;

static umode_t mdev_types_core_is_visible(struct kobject *kobj,
					  struct attribute *attr, int n)
{ … }

static struct attribute_group mdev_type_core_group = …;

static const struct attribute_group *mdev_type_groups[] = …;

static void mdev_type_release(struct kobject *kobj)
{ … }

static const struct kobj_type mdev_type_ktype = …;

static int mdev_type_add(struct mdev_parent *parent, struct mdev_type *type)
{ … }

static void mdev_type_remove(struct mdev_type *type)
{ … }

/* mdev sysfs functions */
void parent_remove_sysfs_files(struct mdev_parent *parent)
{ … }

int parent_create_sysfs_files(struct mdev_parent *parent)
{ … }

static ssize_t remove_store(struct device *dev, struct device_attribute *attr,
			    const char *buf, size_t count)
{ … }

static DEVICE_ATTR_WO(remove);

static struct attribute *mdev_device_attrs[] = …;

static const struct attribute_group mdev_device_group = …;

const struct attribute_group *mdev_device_groups[] = …;

int mdev_create_sysfs_files(struct mdev_device *mdev)
{ … }

void mdev_remove_sysfs_files(struct mdev_device *mdev)
{ … }