LXR linux/drivers/infiniband/hw/nes/nes

   1/*
   2 * Copyright (c) 2006 - 2011 Intel Corporation.  All rights reserved.
   3 * Copyright (c) 2005 Topspin Communications.  All rights reserved.
   4 * Copyright (c) 2005 Cisco Systems.  All rights reserved.
   5 * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
   6 *
   7 * This software is available to you under a choice of one of two
   8 * licenses.  You may choose to be licensed under the terms of the GNU
   9 * General Public License (GPL) Version 2, available from the file
  10 * COPYING in the main directory of this source tree, or the
  11 * OpenIB.org BSD license below:
  12 *
  13 *     Redistribution and use in source and binary forms, with or
  14 *     without modification, are permitted provided that the following
  15 *     conditions are met:
  16 *
  17 *      - Redistributions of source code must retain the above
  18 *        copyright notice, this list of conditions and the following
  19 *        disclaimer.
  20 *
  21 *      - Redistributions in binary form must reproduce the above
  22 *        copyright notice, this list of conditions and the following
  23 *        disclaimer in the documentation and/or other materials
  24 *        provided with the distribution.
  25 *
  26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  33 * SOFTWARE.
  34 *
  35 */
  36
  37#ifndef NES_USER_H
  38#define NES_USER_H
  39
  40#include <linux/types.h>
  41
  42#define NES_ABI_USERSPACE_VER 2
  43#define NES_ABI_KERNEL_VER    2
  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
  53struct nes_alloc_ucontext_req {
  54        __u32 reserved32;
  55        __u8  userspace_ver;
  56        __u8  reserved8[3];
  57};
  58
  59struct nes_alloc_ucontext_resp {
  60        __u32 max_pds; /* maximum pds allowed for this user process */
  61        __u32 max_qps; /* maximum qps allowed for this user process */
  62        __u32 wq_size; /* size of the WQs (sq+rq) allocated to the mmaped area */
  63        __u8  virtwq;  /* flag to indicate if virtual WQ are to be used or not */
  64        __u8  kernel_ver;
  65        __u8  reserved[2];
  66};
  67
  68struct nes_alloc_pd_resp {
  69        __u32 pd_id;
  70        __u32 mmap_db_index;
  71};
  72
  73struct nes_create_cq_req {
  74        __u64 user_cq_buffer;
  75        __u32 mcrqf;
  76        __u8 reserved[4];
  77};
  78
  79struct nes_create_qp_req {
  80        __u64 user_wqe_buffers;
  81        __u64 user_qp_buffer;
  82};
  83
  84enum iwnes_memreg_type {
  85        IWNES_MEMREG_TYPE_MEM = 0x0000,
  86        IWNES_MEMREG_TYPE_QP = 0x0001,
  87        IWNES_MEMREG_TYPE_CQ = 0x0002,
  88        IWNES_MEMREG_TYPE_MW = 0x0003,
  89        IWNES_MEMREG_TYPE_FMR = 0x0004,
  90        IWNES_MEMREG_TYPE_FMEM = 0x0005,
  91};
  92
  93struct nes_mem_reg_req {
  94        __u32 reg_type; /* indicates if id is memory, QP or CQ */
  95        __u32 reserved;
  96};
  97
  98struct nes_create_cq_resp {
  99        __u32 cq_id;
 100        __u32 cq_size;
 101        __u32 mmap_db_index;
 102        __u32 reserved;
 103};
 104
 105struct nes_create_qp_resp {
 106        __u32 qp_id;
 107        __u32 actual_sq_size;
 108        __u32 actual_rq_size;
 109        __u32 mmap_sq_db_index;
 110        __u32 mmap_rq_db_index;
 111        __u32 nes_drv_opt;
 112};
 113
 114#endif                          /* NES_USER_H */
 115