drivers/infiniband/hw/mthca/mthca_user.h

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