include/uapi/rdma/mthca-abi.h

   1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
   2 /*
   3  * Copyright (c) 2005 Topspin Communications.  All rights reserved.
   4  * Copyright (c) 2005, 2006 Cisco Systems.  All rights reserved.
   5  *
   6  * This software is available to you under a choice of one of two
   7  * licenses.  You may choose to be licensed under the terms of the GNU
   8  * General Public License (GPL) Version 2, available from the file
   9  * COPYING in the main directory of this source tree, or the
  10  * OpenIB.org BSD license below:
  11  *
  12  *     Redistribution and use in source and binary forms, with or
  13  *     without modification, are permitted provided that the following
  14  *     conditions are met:
  15  *
  16  *      - Redistributions of source code must retain the above
  17  *        copyright notice, this list of conditions and the following
  18  *        disclaimer.
  19  *
  20  *      - Redistributions in binary form must reproduce the above
  21  *        copyright notice, this list of conditions and the following
  22  *        disclaimer in the documentation and/or other materials
  23  *        provided with the distribution.
  24  *
  25  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  29  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  30  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  31  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  32  * SOFTWARE.
  33  */
  34
  35 #ifndef MTHCA_ABI_USER_H
  36 #define MTHCA_ABI_USER_H
  37
  38 #include <linux/types.h>
  39
  40 /*
  41  * Increment this value if any changes that break userspace ABI
  42  * compatibility are made.
  43  */
  44 #define MTHCA_UVERBS_ABI_VERSION        1
  45
  46 /*
  47  * Make sure that all structs defined in this file remain laid out so
  48  * that they pack the same way on 32-bit and 64-bit architectures (to
  49  * avoid incompatibility between 32-bit userspace and 64-bit kernels).
  50  * In particular do not use pointer types -- pass pointers in __u64
  51  * instead.
  52  */
  53 struct mthca_alloc_ucontext_resp {
  54         __u32 qp_tab_size;
  55         __u32 uarc_size;
  56 };
  57
  58 struct mthca_alloc_pd_resp {
  59         __u32 pdn;
  60         __u32 reserved;
  61 };
  62
  63 /*
  64  * Mark the memory region with a DMA attribute that causes
  65  * in-flight DMA to be flushed when the region is written to:
  66  */
  67 #define MTHCA_MR_DMASYNC        0x1
  68
  69 struct mthca_reg_mr {
  70         __u32 mr_attrs;
  71         __u32 reserved;
  72 };
  73
  74 struct mthca_create_cq {
  75         __u32 lkey;
  76         __u32 pdn;
  77         __aligned_u64 arm_db_page;
  78         __aligned_u64 set_db_page;
  79         __u32 arm_db_index;
  80         __u32 set_db_index;
  81 };
  82
  83 struct mthca_create_cq_resp {
  84         __u32 cqn;
  85         __u32 reserved;
  86 };
  87
  88 struct mthca_resize_cq {
  89         __u32 lkey;
  90         __u32 reserved;
  91 };
  92
  93 struct mthca_create_srq {
  94         __u32 lkey;
  95         __u32 db_index;
  96         __aligned_u64 db_page;
  97 };
  98
  99 struct mthca_create_srq_resp {
 100         __u32 srqn;
 101         __u32 reserved;
 102 };
 103
 104 struct mthca_create_qp {
 105         __u32 lkey;
 106         __u32 reserved;
 107         __aligned_u64 sq_db_page;
 108         __aligned_u64 rq_db_page;
 109         __u32 sq_db_index;
 110         __u32 rq_db_index;
 111 };
 112 #endif /* MTHCA_ABI_USER_H */