98 lines
4.7 KiB
C
98 lines
4.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
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/*
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* Copyright (c) 2018, Mellanox Technologies inc. All rights reserved.
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*/
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#ifndef _UVERBS_NAMED_IOCTL_
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#define _UVERBS_NAMED_IOCTL_
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#include <rdma/uverbs_ioctl.h>
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#ifndef UVERBS_MODULE_NAME
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#error "Please #define UVERBS_MODULE_NAME before including rdma/uverbs_named_ioctl.h"
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#endif
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#define _UVERBS_PASTE(x, y) x ## y
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#define _UVERBS_NAME(x, y) _UVERBS_PASTE(x, y)
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#define UVERBS_METHOD(id) _UVERBS_NAME(UVERBS_MODULE_NAME, _method_##id)
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#define UVERBS_HANDLER(id) _UVERBS_NAME(UVERBS_MODULE_NAME, _handler_##id)
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#define UVERBS_OBJECT(id) _UVERBS_NAME(UVERBS_MODULE_NAME, _object_##id)
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/* These are static so they do not need to be qualified */
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#define UVERBS_METHOD_ATTRS(method_id) _method_attrs_##method_id
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#define UVERBS_OBJECT_METHODS(object_id) _UVERBS_NAME(_object_methods_##object_id, __LINE__)
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#define DECLARE_UVERBS_NAMED_METHOD(_method_id, ...) \
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static const struct uverbs_attr_def *const UVERBS_METHOD_ATTRS( \
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_method_id)[] = { __VA_ARGS__ }; \
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static const struct uverbs_method_def UVERBS_METHOD(_method_id) = { \
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.id = _method_id, \
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.handler = UVERBS_HANDLER(_method_id), \
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.num_attrs = ARRAY_SIZE(UVERBS_METHOD_ATTRS(_method_id)), \
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.attrs = &UVERBS_METHOD_ATTRS(_method_id), \
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}
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/* Create a standard destroy method using the default handler. The handle_attr
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* argument must be the attribute specifying the handle to destroy, the
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* default handler does not support any other attributes.
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*/
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#define DECLARE_UVERBS_NAMED_METHOD_DESTROY(_method_id, _handle_attr) \
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static const struct uverbs_attr_def *const UVERBS_METHOD_ATTRS( \
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_method_id)[] = { _handle_attr }; \
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static const struct uverbs_method_def UVERBS_METHOD(_method_id) = { \
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.id = _method_id, \
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.handler = uverbs_destroy_def_handler, \
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.num_attrs = ARRAY_SIZE(UVERBS_METHOD_ATTRS(_method_id)), \
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.attrs = &UVERBS_METHOD_ATTRS(_method_id), \
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}
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#define DECLARE_UVERBS_NAMED_OBJECT(_object_id, _type_attrs, ...) \
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static const struct uverbs_method_def *const UVERBS_OBJECT_METHODS( \
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_object_id)[] = { __VA_ARGS__ }; \
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static const struct uverbs_object_def UVERBS_OBJECT(_object_id) = { \
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.id = _object_id, \
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.type_attrs = &_type_attrs, \
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.num_methods = ARRAY_SIZE(UVERBS_OBJECT_METHODS(_object_id)), \
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.methods = &UVERBS_OBJECT_METHODS(_object_id) \
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}
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/*
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* Declare global methods. These still have a unique object_id because we
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* identify all uapi methods with a (object,method) tuple. However, they have
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* no type pointer.
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*/
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#define DECLARE_UVERBS_GLOBAL_METHODS(_object_id, ...) \
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static const struct uverbs_method_def *const UVERBS_OBJECT_METHODS( \
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_object_id)[] = { __VA_ARGS__ }; \
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static const struct uverbs_object_def UVERBS_OBJECT(_object_id) = { \
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.id = _object_id, \
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.num_methods = ARRAY_SIZE(UVERBS_OBJECT_METHODS(_object_id)), \
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.methods = &UVERBS_OBJECT_METHODS(_object_id) \
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}
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/* Used by drivers to declare a complete parsing tree for new methods
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*/
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#define ADD_UVERBS_METHODS(_name, _object_id, ...) \
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static const struct uverbs_method_def *const UVERBS_OBJECT_METHODS( \
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_object_id)[] = { __VA_ARGS__ }; \
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static const struct uverbs_object_def _name = { \
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.id = _object_id, \
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.num_methods = ARRAY_SIZE(UVERBS_OBJECT_METHODS(_object_id)), \
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.methods = &UVERBS_OBJECT_METHODS(_object_id) \
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};
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/* Used by drivers to declare a complete parsing tree for a single method that
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* differs only in having additional driver specific attributes.
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*/
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#define ADD_UVERBS_ATTRIBUTES_SIMPLE(_name, _object_id, _method_id, ...) \
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static const struct uverbs_attr_def *const UVERBS_METHOD_ATTRS( \
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_method_id)[] = { __VA_ARGS__ }; \
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static const struct uverbs_method_def UVERBS_METHOD(_method_id) = { \
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.id = _method_id, \
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.num_attrs = ARRAY_SIZE(UVERBS_METHOD_ATTRS(_method_id)), \
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.attrs = &UVERBS_METHOD_ATTRS(_method_id), \
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}; \
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ADD_UVERBS_METHODS(_name, _object_id, &UVERBS_METHOD(_method_id))
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#endif
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