summaryrefslogtreecommitdiffstats
path: root/include/rdma/ib_user_mad.h
blob: 44537aa32e62319072c104058dfe020682576894 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
/*
 * Copyright (c) 2004 Topspin Communications.  All rights reserved.
 * Copyright (c) 2005 Voltaire, Inc. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * $Id: ib_user_mad.h 2814 2005-07-06 19:14:09Z halr $
 */

#ifndef IB_USER_MAD_H
#define IB_USER_MAD_H

#include <linux/types.h>
#include <linux/ioctl.h>

/*
 * Increment this value if any changes that break userspace ABI
 * compatibility are made.
 */
#define IB_USER_MAD_ABI_VERSION	5

/*
 * Make sure that all structs defined in this file remain laid out so
 * that they pack the same way on 32-bit and 64-bit architectures (to
 * avoid incompatibility between 32-bit userspace and 64-bit kernels).
 */

/**
 * ib_user_mad_hdr - MAD packet header
 * @id - ID of agent MAD received with/to be sent with
 * @status - 0 on successful receive, ETIMEDOUT if no response
 *   received (transaction ID in data[] will be set to TID of original
 *   request) (ignored on send)
 * @timeout_ms - Milliseconds to wait for response (unset on receive)
 * @retries - Number of automatic retries to attempt
 * @qpn - Remote QP number received from/to be sent to
 * @qkey - Remote Q_Key to be sent with (unset on receive)
 * @lid - Remote lid received from/to be sent to
 * @sl - Service level received with/to be sent with
 * @path_bits - Local path bits received with/to be sent with
 * @grh_present - If set, GRH was received/should be sent
 * @gid_index - Local GID index to send with (unset on receive)
 * @hop_limit - Hop limit in GRH
 * @traffic_class - Traffic class in GRH
 * @gid - Remote GID in GRH
 * @flow_label - Flow label in GRH
 */
struct ib_user_mad_hdr {
	__u32	id;
	__u32	status;
	__u32	timeout_ms;
	__u32	retries;
	__u32	length;
	__be32	qpn;
	__be32  qkey;
	__be16	lid;
	__u8	sl;
	__u8	path_bits;
	__u8	grh_present;
	__u8	gid_index;
	__u8	hop_limit;
	__u8	traffic_class;
	__u8	gid[16];
	__be32	flow_label;
};

/**
 * ib_user_mad - MAD packet
 * @hdr - MAD packet header
 * @data - Contents of MAD
 *
 */
struct ib_user_mad {
	struct ib_user_mad_hdr hdr;
	__u8	data[0];
};

/**
 * ib_user_mad_reg_req - MAD registration request
 * @id - Set by the kernel; used to identify agent in future requests.
 * @qpn - Queue pair number; must be 0 or 1.
 * @method_mask - The caller will receive unsolicited MADs for any method
 *   where @method_mask = 1.
 * @mgmt_class - Indicates which management class of MADs should be receive
 *   by the caller.  This field is only required if the user wishes to
 *   receive unsolicited MADs, otherwise it should be 0.
 * @mgmt_class_version - Indicates which version of MADs for the given
 *   management class to receive.
 * @oui: Indicates IEEE OUI when mgmt_class is a vendor class
 *   in the range from 0x30 to 0x4f. Otherwise not used.
 * @rmpp_version: If set, indicates the RMPP version used.
 *
 */
struct ib_user_mad_reg_req {
	__u32	id;
	__u32	method_mask[4];
	__u8	qpn;
	__u8	mgmt_class;
	__u8	mgmt_class_version;
	__u8    oui[3];
	__u8	rmpp_version;
};

#define IB_IOCTL_MAGIC		0x1b

#define IB_USER_MAD_REGISTER_AGENT	_IOWR(IB_IOCTL_MAGIC, 1, \
					      struct ib_user_mad_reg_req)

#define IB_USER_MAD_UNREGISTER_AGENT	_IOW(IB_IOCTL_MAGIC, 2, __u32)

#endif /* IB_USER_MAD_H */
OpenPOWER on IntegriCloud