drivers/infiniband/hw/mlx5/user.h

   1 /*
   2  * Copyright (c) 2013-2015, Mellanox Technologies. 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 MLX5_IB_USER_H
  34 #define MLX5_IB_USER_H
  35
  36 #include <linux/types.h>
  37
  38 enum {
  39         MLX5_QP_FLAG_SIGNATURE          = 1 << 0,
  40         MLX5_QP_FLAG_SCATTER_CQE        = 1 << 1,
  41 };
  42
  43 enum {
  44         MLX5_SRQ_FLAG_SIGNATURE         = 1 << 0,
  45 };
  46
  47
  48 /* Increment this value if any changes that break userspace ABI
  49  * compatibility are made.
  50  */
  51 #define MLX5_IB_UVERBS_ABI_VERSION      1
  52
  53 /* Make sure that all structs defined in this file remain laid out so
  54  * that they pack the same way on 32-bit and 64-bit architectures (to
  55  * avoid incompatibility between 32-bit userspace and 64-bit kernels).
  56  * In particular do not use pointer types -- pass pointers in __u64
  57  * instead.
  58  */
  59
  60 struct mlx5_ib_alloc_ucontext_req {
  61         __u32   total_num_uuars;
  62         __u32   num_low_latency_uuars;
  63 };
  64
  65 struct mlx5_ib_alloc_ucontext_req_v2 {
  66         __u32   total_num_uuars;
  67         __u32   num_low_latency_uuars;
  68         __u32   flags;
  69         __u32   reserved;
  70 };
  71
  72 struct mlx5_ib_alloc_ucontext_resp {
  73         __u32   qp_tab_size;
  74         __u32   bf_reg_size;
  75         __u32   tot_uuars;
  76         __u32   cache_line_size;
  77         __u16   max_sq_desc_sz;
  78         __u16   max_rq_desc_sz;
  79         __u32   max_send_wqebb;
  80         __u32   max_recv_wr;
  81         __u32   max_srq_recv_wr;
  82         __u16   num_ports;
  83         __u16   reserved;
  84 };
  85
  86 struct mlx5_ib_alloc_pd_resp {
  87         __u32   pdn;
  88 };
  89
  90 struct mlx5_ib_create_cq {
  91         __u64   buf_addr;
  92         __u64   db_addr;
  93         __u32   cqe_size;
  94         __u32   reserved; /* explicit padding (optional on i386) */
  95 };
  96
  97 struct mlx5_ib_create_cq_resp {
  98         __u32   cqn;
  99         __u32   reserved;
 100 };
 101
 102 struct mlx5_ib_resize_cq {
 103         __u64   buf_addr;
 104         __u16   cqe_size;
 105         __u16   reserved0;
 106         __u32   reserved1;
 107 };
 108
 109 struct mlx5_ib_create_srq {
 110         __u64   buf_addr;
 111         __u64   db_addr;
 112         __u32   flags;
 113         __u32   reserved; /* explicit padding (optional on i386) */
 114 };
 115
 116 struct mlx5_ib_create_srq_resp {
 117         __u32   srqn;
 118         __u32   reserved;
 119 };
 120
 121 struct mlx5_ib_create_qp {
 122         __u64   buf_addr;
 123         __u64   db_addr;
 124         __u32   sq_wqe_count;
 125         __u32   rq_wqe_count;
 126         __u32   rq_wqe_shift;
 127         __u32   flags;
 128 };
 129
 130 struct mlx5_ib_create_qp_resp {
 131         __u32   uuar_index;
 132 };
 133 #endif /* MLX5_IB_USER_H */