1 /* 2 * Copyright (c) 2017, Mellanox Technologies inc. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 33 #ifndef _UVERBS_STD_TYPES__ 34 #define _UVERBS_STD_TYPES__ 35 36 #include <rdma/uverbs_types.h> 37 #include <rdma/uverbs_ioctl.h> 38 #include <rdma/ib_user_ioctl_verbs.h> 39 40 #define UVERBS_OBJECT(id) uverbs_object_##id 41 42 #if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS) 43 const struct uverbs_object_tree_def *uverbs_default_get_objects(void); 44 #else 45 static inline const struct uverbs_object_tree_def *uverbs_default_get_objects(void) 46 { 47 return NULL; 48 } 49 #endif 50 51 static inline struct ib_uobject *__uobj_get(const struct uverbs_obj_type *type, 52 bool write, 53 struct ib_ucontext *ucontext, 54 int id) 55 { 56 return rdma_lookup_get_uobject(type, ucontext, id, write); 57 } 58 59 #define uobj_get_type(_object) UVERBS_OBJECT(_object).type_attrs 60 61 #define uobj_get_read(_type, _id, _ucontext) \ 62 __uobj_get(uobj_get_type(_type), false, _ucontext, _id) 63 64 #define uobj_get_obj_read(_object, _type, _id, _ucontext) \ 65 ({ \ 66 struct ib_uobject *__uobj = \ 67 __uobj_get(uobj_get_type(_type), \ 68 false, _ucontext, _id); \ 69 \ 70 (struct ib_##_object *)(IS_ERR(__uobj) ? NULL : __uobj->object);\ 71 }) 72 73 #define uobj_get_write(_type, _id, _ucontext) \ 74 __uobj_get(uobj_get_type(_type), true, _ucontext, _id) 75 76 static inline void uobj_put_read(struct ib_uobject *uobj) 77 { 78 rdma_lookup_put_uobject(uobj, false); 79 } 80 81 #define uobj_put_obj_read(_obj) \ 82 uobj_put_read((_obj)->uobject) 83 84 static inline void uobj_put_write(struct ib_uobject *uobj) 85 { 86 rdma_lookup_put_uobject(uobj, true); 87 } 88 89 static inline int __must_check uobj_remove_commit(struct ib_uobject *uobj) 90 { 91 return rdma_remove_commit_uobject(uobj); 92 } 93 94 static inline void uobj_alloc_commit(struct ib_uobject *uobj) 95 { 96 rdma_alloc_commit_uobject(uobj); 97 } 98 99 static inline void uobj_alloc_abort(struct ib_uobject *uobj) 100 { 101 rdma_alloc_abort_uobject(uobj); 102 } 103 104 static inline struct ib_uobject *__uobj_alloc(const struct uverbs_obj_type *type, 105 struct ib_ucontext *ucontext) 106 { 107 return rdma_alloc_begin_uobject(type, ucontext); 108 } 109 110 #define uobj_alloc(_type, ucontext) \ 111 __uobj_alloc(uobj_get_type(_type), ucontext) 112 113 #endif 114 115