LXR linux/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 */
  53struct mthca_alloc_ucontext_resp {
  54        __u32 qp_tab_size;
  55        __u32 uarc_size;
  56};
  57
  58struct 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
  69struct mthca_reg_mr {
  70        __u32 mr_attrs;
  71        __u32 reserved;
  72};
  73
  74struct 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
  83struct mthca_create_cq_resp {
  84        __u32 cqn;
  85        __u32 reserved;
  86};
  87
  88struct mthca_resize_cq {
  89        __u32 lkey;
  90        __u32 reserved;
  91};
  92
  93struct mthca_create_srq {
  94        __u32 lkey;
  95        __u32 db_index;
  96        __aligned_u64 db_page;
  97};
  98
  99struct mthca_create_srq_resp {
 100        __u32 srqn;
 101        __u32 reserved;
 102};
 103
 104struct 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 */
 113