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nes_user.h
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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
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33  * SOFTWARE.
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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  IWNES_MEMREG_TYPE_FMEM = 0x0005,
90 };
91 
92 struct nes_mem_reg_req {
93  __u32 reg_type; /* indicates if id is memory, QP or CQ */
94  __u32 reserved;
95 };
96 
97 struct nes_create_cq_resp {
98  __u32 cq_id;
99  __u32 cq_size;
100  __u32 mmap_db_index;
101  __u32 reserved;
102 };
103 
104 struct nes_create_qp_resp {
105  __u32 qp_id;
106  __u32 actual_sq_size;
107  __u32 actual_rq_size;
108  __u32 mmap_sq_db_index;
109  __u32 mmap_rq_db_index;
110  __u32 nes_drv_opt;
111 };
112 
113 #endif /* NES_USER_H */
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