include/uapi/rdma/nes-abi.h

   1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
   2 /*
   3  * Copyright (c) 2006 - 2011 Intel Corporation.  All rights reserved.
   4  * Copyright (c) 2005 Topspin Communications.  All rights reserved.
   5  * Copyright (c) 2005 Cisco Systems.  All rights reserved.
   6  * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
   7  *
   8  * This software is available to you under a choice of one of two
   9  * licenses.  You may choose to be licensed under the terms of the GNU
  10  * General Public License (GPL) Version 2, available from the file
  11  * COPYING in the main directory of this source tree, or the
  12  * OpenIB.org BSD license below:
  13  *
  14  *     Redistribution and use in source and binary forms, with or
  15  *     without modification, are permitted provided that the following
  16  *     conditions are met:
  17  *
  18  *      - Redistributions of source code must retain the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer.
  21  *
  22  *      - Redistributions in binary form must reproduce the above
  23  *        copyright notice, this list of conditions and the following
  24  *        disclaimer in the documentation and/or other materials
  25  *        provided with the distribution.
  26  *
  27  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  28  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  29  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  30  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  31  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  32  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  33  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  34  * SOFTWARE.
  35  *
  36  */
  37
  38 #ifndef NES_ABI_USER_H
  39 #define NES_ABI_USER_H
  40
  41 #include <linux/types.h>
  42
  43 #define NES_ABI_USERSPACE_VER 2
  44 #define NES_ABI_KERNEL_VER    2
  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 nes_alloc_ucontext_req {
  55         __u32 reserved32;
  56         __u8  userspace_ver;
  57         __u8  reserved8[3];
  58 };
  59
  60 struct nes_alloc_ucontext_resp {
  61         __u32 max_pds; /* maximum pds allowed for this user process */
  62         __u32 max_qps; /* maximum qps allowed for this user process */
  63         __u32 wq_size; /* size of the WQs (sq+rq) allocated to the mmaped area */
  64         __u8  virtwq;  /* flag to indicate if virtual WQ are to be used or not */
  65         __u8  kernel_ver;
  66         __u8  reserved[2];
  67 };
  68
  69 struct nes_alloc_pd_resp {
  70         __u32 pd_id;
  71         __u32 mmap_db_index;
  72 };
  73
  74 struct nes_create_cq_req {
  75         __u64 user_cq_buffer;
  76         __u32 mcrqf;
  77         __u8 reserved[4];
  78 };
  79
  80 struct nes_create_qp_req {
  81         __u64 user_wqe_buffers;
  82         __u64 user_qp_buffer;
  83 };
  84
  85 enum iwnes_memreg_type {
  86         IWNES_MEMREG_TYPE_MEM = 0x0000,
  87         IWNES_MEMREG_TYPE_QP = 0x0001,
  88         IWNES_MEMREG_TYPE_CQ = 0x0002,
  89         IWNES_MEMREG_TYPE_MW = 0x0003,
  90         IWNES_MEMREG_TYPE_FMR = 0x0004,
  91         IWNES_MEMREG_TYPE_FMEM = 0x0005,
  92 };
  93
  94 struct nes_mem_reg_req {
  95         __u32 reg_type; /* indicates if id is memory, QP or CQ */
  96         __u32 reserved;
  97 };
  98
  99 struct nes_create_cq_resp {
 100         __u32 cq_id;
 101         __u32 cq_size;
 102         __u32 mmap_db_index;
 103         __u32 reserved;
 104 };
 105
 106 struct nes_create_qp_resp {
 107         __u32 qp_id;
 108         __u32 actual_sq_size;
 109         __u32 actual_rq_size;
 110         __u32 mmap_sq_db_index;
 111         __u32 mmap_rq_db_index;
 112         __u32 nes_drv_opt;
 113 };
 114
 115 #endif  /* NES_ABI_USER_H */