LXR linux/include/uapi/rdma/nes-abi.h

   1/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
   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
  54struct nes_alloc_ucontext_req {
  55        __u32 reserved32;
  56        __u8  userspace_ver;
  57        __u8  reserved8[3];
  58};
  59
  60struct 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
  69struct nes_alloc_pd_resp {
  70        __u32 pd_id;
  71        __u32 mmap_db_index;
  72};
  73
  74struct nes_create_cq_req {
  75        __aligned_u64 user_cq_buffer;
  76        __u32 mcrqf;
  77        __u8 reserved[4];
  78};
  79
  80struct nes_create_qp_req {
  81        __aligned_u64 user_wqe_buffers;
  82        __aligned_u64 user_qp_buffer;
  83};
  84
  85enum 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
  94struct nes_mem_reg_req {
  95        __u32 reg_type; /* indicates if id is memory, QP or CQ */
  96        __u32 reserved;
  97};
  98
  99struct nes_create_cq_resp {
 100        __u32 cq_id;
 101        __u32 cq_size;
 102        __u32 mmap_db_index;
 103        __u32 reserved;
 104};
 105
 106struct 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 */
 116