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_ABI_USER_H
38 #define NES_ABI_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 
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 	__u64 user_qp_buffer;
82 };
83 
84 enum 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 
93 struct nes_mem_reg_req {
94 	__u32 reg_type;	/* indicates if id is memory, QP or CQ */
95 	__u32 reserved;
96 };
97 
98 struct nes_create_cq_resp {
99 	__u32 cq_id;
100 	__u32 cq_size;
101 	__u32 mmap_db_index;
102 	__u32 reserved;
103 };
104 
105 struct 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_ABI_USER_H */
115