drivers/infiniband/hw/nes/nes_user.h

   1 /*
   2  * Copyright (c) 2006 - 2009 Intel-NE, Inc.  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 1
  43 #define NES_ABI_KERNEL_VER    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 nes_alloc_ucontext_req {
  54         __u32 reserved32;
  55         __u8  userspace_ver;
  56         __u8  reserved8[3];
  57 };
  58
  59 struct 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
  68 struct nes_alloc_pd_resp {
  69         __u32 pd_id;
  70         __u32 mmap_db_index;
  71 };
  72
  73 struct nes_create_cq_req {
  74         __u64 user_cq_buffer;
  75         __u32 mcrqf;
  76         __u8 reserved[4];
  77 };
  78
  79 struct nes_create_qp_req {
  80         __u64 user_wqe_buffers;
  81 };
  82
  83 enum iwnes_memreg_type {
  84         IWNES_MEMREG_TYPE_MEM = 0x0000,
  85         IWNES_MEMREG_TYPE_QP = 0x0001,
  86         IWNES_MEMREG_TYPE_CQ = 0x0002,
  87         IWNES_MEMREG_TYPE_MW = 0x0003,
  88         IWNES_MEMREG_TYPE_FMR = 0x0004,
  89 };
  90
  91 struct nes_mem_reg_req {
  92         __u32 reg_type; /* indicates if id is memory, QP or CQ */
  93         __u32 reserved;
  94 };
  95
  96 struct nes_create_cq_resp {
  97         __u32 cq_id;
  98         __u32 cq_size;
  99         __u32 mmap_db_index;
 100         __u32 reserved;
 101 };
 102
 103 struct nes_create_qp_resp {
 104         __u32 qp_id;
 105         __u32 actual_sq_size;
 106         __u32 actual_rq_size;
 107         __u32 mmap_sq_db_index;
 108         __u32 mmap_rq_db_index;
 109         __u32 nes_drv_opt;
 110 };
 111
 112 #endif                          /* NES_USER_H */