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