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
  35 #ifndef MTHCA_USER_H
  36 #define MTHCA_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
  54 struct mthca_alloc_ucontext_resp {
  55         __u32 qp_tab_size;
  56         __u32 uarc_size;
  57 };
  58
  59 struct mthca_alloc_pd_resp {
  60         __u32 pdn;
  61         __u32 reserved;
  62 };
  63
  64 struct mthca_reg_mr {
  65 /*
  66  * Mark the memory region with a DMA attribute that causes
  67  * in-flight DMA to be flushed when the region is written to:
  68  */
  69 #define MTHCA_MR_DMASYNC        0x1
  70         __u32 mr_attrs;
  71         __u32 reserved;
  72 };
  73
  74 struct mthca_create_cq {
  75         __u32 lkey;
  76         __u32 pdn;
  77         __u64 arm_db_page;
  78         __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         __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         __u64 sq_db_page;
 108         __u64 rq_db_page;
 109         __u32 sq_db_index;
 110         __u32 rq_db_index;
 111 };
 112
 113 #endif /* MTHCA_USER_H */