LXR linux/drivers/infiniband/hw/mlx5/user.h

   1/*
   2 * Copyright (c) 2013, Mellanox Technologies inc.  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
  38enum {
  39        MLX5_QP_FLAG_SIGNATURE          = 1 << 0,
  40        MLX5_QP_FLAG_SCATTER_CQE        = 1 << 1,
  41};
  42
  43enum {
  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
  60struct mlx5_ib_alloc_ucontext_req {
  61        __u32   total_num_uuars;
  62        __u32   num_low_latency_uuars;
  63};
  64
  65struct 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
  72struct 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
  86struct mlx5_ib_alloc_pd_resp {
  87        __u32   pdn;
  88};
  89
  90struct 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
  97struct mlx5_ib_create_cq_resp {
  98        __u32   cqn;
  99        __u32   reserved;
 100};
 101
 102struct mlx5_ib_resize_cq {
 103        __u64   buf_addr;
 104        __u16   cqe_size;
 105        __u16   reserved0;
 106        __u32   reserved1;
 107};
 108
 109struct 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
 116struct mlx5_ib_create_srq_resp {
 117        __u32   srqn;
 118        __u32   reserved;
 119};
 120
 121struct 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
 130struct mlx5_ib_create_qp_resp {
 131        __u32   uuar_index;
 132};
 133#endif /* MLX5_IB_USER_H */
 134