include/rdma/uverbs_std_types.h

   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
  38 extern const struct uverbs_obj_fd_type uverbs_type_attrs_comp_channel;
  39 extern const struct uverbs_obj_idr_type uverbs_type_attrs_cq;
  40 extern const struct uverbs_obj_idr_type uverbs_type_attrs_qp;
  41 extern const struct uverbs_obj_idr_type uverbs_type_attrs_rwq_ind_table;
  42 extern const struct uverbs_obj_idr_type uverbs_type_attrs_wq;
  43 extern const struct uverbs_obj_idr_type uverbs_type_attrs_srq;
  44 extern const struct uverbs_obj_idr_type uverbs_type_attrs_ah;
  45 extern const struct uverbs_obj_idr_type uverbs_type_attrs_flow;
  46 extern const struct uverbs_obj_idr_type uverbs_type_attrs_mr;
  47 extern const struct uverbs_obj_idr_type uverbs_type_attrs_mw;
  48 extern const struct uverbs_obj_idr_type uverbs_type_attrs_pd;
  49 extern const struct uverbs_obj_idr_type uverbs_type_attrs_xrcd;
  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(_type) uverbs_type_attrs_##_type.type
  60
  61 #define uobj_get_read(_type, _id, _ucontext)                            \
  62          __uobj_get(&(_type), false, _ucontext, _id)
  63
  64 #define uobj_get_obj_read(_type, _id, _ucontext)                        \
  65 ({                                                                      \
  66         struct ib_uobject *uobj =                                       \
  67                 __uobj_get(&uobj_get_type(_type),                       \
  68                            false, _ucontext, _id);                      \
  69                                                                         \
  70         (struct ib_##_type *)(IS_ERR(uobj) ? NULL : uobj->object);      \
  71 })
  72
  73 #define uobj_get_write(_type, _id, _ucontext)                           \
  74          __uobj_get(&(_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(&(_type), ucontext)
 112
 113 #endif
 114