linux/drivers/infiniband/core/uverbs_uapi.c

// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/*
 * Copyright (c) 2017, Mellanox Technologies inc.  All rights reserved.
 */
#include <rdma/uverbs_ioctl.h>
#include <rdma/rdma_user_ioctl.h>
#include <linux/bitops.h>
#include "rdma_core.h"
#include "uverbs.h"

static int ib_uverbs_notsupp(struct uverbs_attr_bundle *attrs)
{ … }

static void *uapi_add_elm(struct uverbs_api *uapi, u32 key, size_t alloc_size)
{ … }

static void *uapi_add_get_elm(struct uverbs_api *uapi, u32 key,
			      size_t alloc_size, bool *exists)
{ … }

static int uapi_create_write(struct uverbs_api *uapi,
			     struct ib_device *ibdev,
			     const struct uapi_definition *def,
			     u32 obj_key,
			     u32 *cur_method_key)
{ … }

static int uapi_merge_method(struct uverbs_api *uapi,
			     struct uverbs_api_object *obj_elm, u32 obj_key,
			     const struct uverbs_method_def *method,
			     bool is_driver)
{ … }

static int uapi_merge_obj_tree(struct uverbs_api *uapi,
			       const struct uverbs_object_def *obj,
			       bool is_driver)
{ … }

static int uapi_disable_elm(struct uverbs_api *uapi,
			    const struct uapi_definition *def,
			    u32 obj_key,
			    u32 method_key)
{ … }

static int uapi_merge_def(struct uverbs_api *uapi, struct ib_device *ibdev,
			  const struct uapi_definition *def_list,
			  bool is_driver)
{ … }

static int
uapi_finalize_ioctl_method(struct uverbs_api *uapi,
			   struct uverbs_api_ioctl_method *method_elm,
			   u32 method_key)
{ … }

static int uapi_finalize(struct uverbs_api *uapi)
{ … }

static void uapi_remove_range(struct uverbs_api *uapi, u32 start, u32 last)
{ … }

static void uapi_remove_object(struct uverbs_api *uapi, u32 obj_key)
{ … }

static void uapi_remove_method(struct uverbs_api *uapi, u32 method_key)
{ … }


static u32 uapi_get_obj_id(struct uverbs_attr_spec *spec)
{ … }

static void uapi_key_okay(u32 key)
{ … }

static void uapi_finalize_disable(struct uverbs_api *uapi)
{ … }

void uverbs_destroy_api(struct uverbs_api *uapi)
{ … }

static const struct uapi_definition uverbs_core_api[] = …;

struct uverbs_api *uverbs_alloc_api(struct ib_device *ibdev)
{ … }

/*
 * The pre version is done before destroying the HW objects, it only blocks
 * off method access. All methods that require the ib_dev or the module data
 * must test one of these assignments prior to continuing.
 */
void uverbs_disassociate_api_pre(struct ib_uverbs_device *uverbs_dev)
{ … }

/*
 * Called when a driver disassociates from the ib_uverbs_device. The
 * assumption is that the driver module will unload after. Replace everything
 * related to the driver with NULL as a safety measure.
 */
void uverbs_disassociate_api(struct uverbs_api *uapi)
{ … }