/*
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* Copyright (c) 2017, Mellanox Technologies inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _UVERBS_STD_TYPES__
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#define _UVERBS_STD_TYPES__
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#include <rdma/uverbs_types.h>
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#include <rdma/uverbs_ioctl.h>
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#include <rdma/ib_user_ioctl_verbs.h>
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#if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS)
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const struct uverbs_object_tree_def *uverbs_default_get_objects(void);
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#else
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static inline const struct uverbs_object_tree_def *uverbs_default_get_objects(void)
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{
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return NULL;
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}
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#endif
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/* Returns _id, or causes a compile error if _id is not a u32.
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*
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* The uobj APIs should only be used with the write based uAPI to access
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* object IDs. The write API must use a u32 for the object handle, which is
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* checked by this macro.
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*/
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#define _uobj_check_id(_id) ((_id) * typecheck(u32, _id))
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#define uobj_get_type(_ufile, _object) \
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uapi_get_object((_ufile)->device->uapi, _object)
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#define uobj_get_read(_type, _id, _ufile) \
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rdma_lookup_get_uobject(uobj_get_type(_ufile, _type), _ufile, \
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_uobj_check_id(_id), UVERBS_LOOKUP_READ)
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#define ufd_get_read(_type, _fdnum, _ufile) \
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rdma_lookup_get_uobject(uobj_get_type(_ufile, _type), _ufile, \
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(_fdnum)*typecheck(s32, _fdnum), \
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UVERBS_LOOKUP_READ)
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static inline void *_uobj_get_obj_read(struct ib_uobject *uobj)
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{
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if (IS_ERR(uobj))
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return NULL;
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return uobj->object;
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}
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#define uobj_get_obj_read(_object, _type, _id, _ufile) \
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((struct ib_##_object *)_uobj_get_obj_read( \
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uobj_get_read(_type, _id, _ufile)))
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#define uobj_get_write(_type, _id, _ufile) \
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rdma_lookup_get_uobject(uobj_get_type(_ufile, _type), _ufile, \
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_uobj_check_id(_id), UVERBS_LOOKUP_WRITE)
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int __uobj_perform_destroy(const struct uverbs_api_object *obj, u32 id,
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struct ib_uverbs_file *ufile, int success_res);
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#define uobj_perform_destroy(_type, _id, _ufile, _success_res) \
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__uobj_perform_destroy(uobj_get_type(_ufile, _type), \
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_uobj_check_id(_id), _ufile, _success_res)
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struct ib_uobject *__uobj_get_destroy(const struct uverbs_api_object *obj,
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u32 id, struct ib_uverbs_file *ufile);
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#define uobj_get_destroy(_type, _id, _ufile) \
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__uobj_get_destroy(uobj_get_type(_ufile, _type), _uobj_check_id(_id), \
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_ufile)
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static inline void uobj_put_destroy(struct ib_uobject *uobj)
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{
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rdma_lookup_put_uobject(uobj, UVERBS_LOOKUP_DESTROY);
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}
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static inline void uobj_put_read(struct ib_uobject *uobj)
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{
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rdma_lookup_put_uobject(uobj, UVERBS_LOOKUP_READ);
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}
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#define uobj_put_obj_read(_obj) \
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uobj_put_read((_obj)->uobject)
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static inline void uobj_put_write(struct ib_uobject *uobj)
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{
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rdma_lookup_put_uobject(uobj, UVERBS_LOOKUP_WRITE);
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}
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static inline int __must_check uobj_alloc_commit(struct ib_uobject *uobj,
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int success_res)
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{
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int ret = rdma_alloc_commit_uobject(uobj);
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if (ret)
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return ret;
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return success_res;
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}
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static inline void uobj_alloc_abort(struct ib_uobject *uobj)
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{
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rdma_alloc_abort_uobject(uobj);
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}
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static inline struct ib_uobject *
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__uobj_alloc(const struct uverbs_api_object *obj, struct ib_uverbs_file *ufile,
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struct ib_device **ib_dev)
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{
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struct ib_uobject *uobj = rdma_alloc_begin_uobject(obj, ufile);
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if (!IS_ERR(uobj))
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*ib_dev = uobj->context->device;
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return uobj;
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}
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#define uobj_alloc(_type, _ufile, _ib_dev) \
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__uobj_alloc(uobj_get_type(_ufile, _type), _ufile, _ib_dev)
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#endif
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