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/*
* Copyright (c) 2018, Mellanox Technologies inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* 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.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#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 DECLARE_UVERBS_NAMED_METHOD(id, ...) \
DECLARE_UVERBS_METHOD(UVERBS_METHOD(id), id, UVERBS_HANDLER(id), ##__VA_ARGS__)
#define DECLARE_UVERBS_NAMED_METHOD_WITH_HANDLER(id, handler, ...) \
DECLARE_UVERBS_METHOD(UVERBS_METHOD(id), id, handler, ##__VA_ARGS__)
#define DECLARE_UVERBS_NAMED_METHOD_NO_OVERRIDE(id, handler, ...) \
DECLARE_UVERBS_METHOD(UVERBS_METHOD(id), id, NULL, ##__VA_ARGS__)
#define DECLARE_UVERBS_NAMED_OBJECT(id, ...) \
DECLARE_UVERBS_OBJECT(UVERBS_OBJECT(id), id, ##__VA_ARGS__)
#define _UVERBS_COMP_NAME(x, y, z) _UVERBS_NAME(_UVERBS_NAME(x, y), z)
#define UVERBS_NO_OVERRIDE NULL
/* This declares a parsing tree with one object and one method. This is usually
* used for merging driver attributes to the common attributes. The driver has
* a chance to override the handler and type attrs of the original object.
* The __VA_ARGS__ just contains a list of attributes.
*/
#define ADD_UVERBS_ATTRIBUTES(_name, _object, _method, _type_attrs, _handler, ...) \
static DECLARE_UVERBS_METHOD(_UVERBS_COMP_NAME(UVERBS_MODULE_NAME, \
_method_, _name), \
_method, _handler, ##__VA_ARGS__); \
\
static DECLARE_UVERBS_OBJECT(_UVERBS_COMP_NAME(UVERBS_MODULE_NAME, \
_object_, _name), \
_object, _type_attrs, \
&_UVERBS_COMP_NAME(UVERBS_MODULE_NAME, \
_method_, _name)); \
\
static DECLARE_UVERBS_OBJECT_TREE(_name, \
&_UVERBS_COMP_NAME(UVERBS_MODULE_NAME, \
_object_, _name))
/* A very common use case is that the driver doesn't override the handler and
* type_attrs. Therefore, we provide a simplified macro for this common case.
*/
#define ADD_UVERBS_ATTRIBUTES_SIMPLE(_name, _object, _method, ...) \
ADD_UVERBS_ATTRIBUTES(_name, _object, _method, UVERBS_NO_OVERRIDE, \
UVERBS_NO_OVERRIDE, ##__VA_ARGS__)
#endif
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