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 #if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS) 41 const struct uverbs_object_tree_def *uverbs_default_get_objects(void); 42 #else 43 static inline const struct uverbs_object_tree_def *uverbs_default_get_objects(void) 44 { 45 return NULL; 46 } 47 #endif 48 49 static inline struct ib_uobject *__uobj_get(const struct uverbs_obj_type *type, 50 bool write, 51 struct ib_uverbs_file *ufile, 52 int id) 53 { 54 return rdma_lookup_get_uobject(type, ufile, id, write); 55 } 56 57 #define uobj_get_type(_object) UVERBS_OBJECT(_object).type_attrs 58 59 #define uobj_get_read(_type, _id, _ucontext) \ 60 __uobj_get(uobj_get_type(_type), false, (_ucontext)->ufile, _id) 61 62 #define uobj_get_obj_read(_object, _type, _id, _ucontext) \ 63 ({ \ 64 struct ib_uobject *__uobj = \ 65 __uobj_get(uobj_get_type(_type), \ 66 false, (_ucontext)->ufile, _id); \ 67 \ 68 (struct ib_##_object *)(IS_ERR(__uobj) ? NULL : __uobj->object);\ 69 }) 70 71 #define uobj_get_write(_type, _id, _ucontext) \ 72 __uobj_get(uobj_get_type(_type), true, (_ucontext)->ufile, _id) 73 74 int __uobj_perform_destroy(const struct uverbs_obj_type *type, int id, 75 struct ib_uverbs_file *ufile, int success_res); 76 #define uobj_perform_destroy(_type, _id, _ufile, _success_res) \ 77 __uobj_perform_destroy(uobj_get_type(_type), _id, _ufile, _success_res) 78 79 static inline void uobj_put_read(struct ib_uobject *uobj) 80 { 81 rdma_lookup_put_uobject(uobj, false); 82 } 83 84 #define uobj_put_obj_read(_obj) \ 85 uobj_put_read((_obj)->uobject) 86 87 static inline void uobj_put_write(struct ib_uobject *uobj) 88 { 89 rdma_lookup_put_uobject(uobj, true); 90 } 91 92 static inline int __must_check uobj_remove_commit(struct ib_uobject *uobj) 93 { 94 return rdma_remove_commit_uobject(uobj); 95 } 96 97 static inline void uobj_alloc_commit(struct ib_uobject *uobj) 98 { 99 rdma_alloc_commit_uobject(uobj); 100 } 101 102 static inline void uobj_alloc_abort(struct ib_uobject *uobj) 103 { 104 rdma_alloc_abort_uobject(uobj); 105 } 106 107 static inline struct ib_uobject *__uobj_alloc(const struct uverbs_obj_type *type, 108 struct ib_ucontext *ucontext) 109 { 110 return rdma_alloc_begin_uobject(type, ucontext->ufile); 111 } 112 113 #define uobj_alloc(_type, ucontext) \ 114 __uobj_alloc(uobj_get_type(_type), ucontext) 115 116 #endif 117 118