1/*
2 * Copyright (c) 2006 - 2009 Mellanox Technology Inc.  All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses.  You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 *     Redistribution and use in source and binary forms, with or
11 *     without modification, are permitted provided that the following
12 *     conditions are met:
13 *
14 *      - Redistributions of source code must retain the above
15 *        copyright notice, this list of conditions and the following
16 *        disclaimer.
17 *
18 *      - Redistributions in binary form must reproduce the above
19 *        copyright notice, this list of conditions and the following
20 *        disclaimer in the documentation and/or other materials
21 *        provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 *
32 */
33
34#ifndef IB_DM_MAD_H
35#define IB_DM_MAD_H
36
37#include <linux/types.h>
38
39#include <rdma/ib_mad.h>
40
41enum {
42	/*
43	 * See also section 13.4.7 Status Field, table 115 MAD Common Status
44	 * Field Bit Values and also section 16.3.1.1 Status Field in the
45	 * InfiniBand Architecture Specification.
46	 */
47	DM_MAD_STATUS_UNSUP_METHOD = 0x0008,
48	DM_MAD_STATUS_UNSUP_METHOD_ATTR = 0x000c,
49	DM_MAD_STATUS_INVALID_FIELD = 0x001c,
50	DM_MAD_STATUS_NO_IOC = 0x0100,
51
52	/*
53	 * See also the Device Management chapter, section 16.3.3 Attributes,
54	 * table 279 Device Management Attributes in the InfiniBand
55	 * Architecture Specification.
56	 */
57	DM_ATTR_CLASS_PORT_INFO = 0x01,
58	DM_ATTR_IOU_INFO = 0x10,
59	DM_ATTR_IOC_PROFILE = 0x11,
60	DM_ATTR_SVC_ENTRIES = 0x12
61};
62
63struct ib_dm_hdr {
64	u8 reserved[28];
65};
66
67/*
68 * Structure of management datagram sent by the SRP target implementation.
69 * Contains a management datagram header, reliable multi-packet transaction
70 * protocol (RMPP) header and ib_dm_hdr. Notes:
71 * - The SRP target implementation does not use RMPP or ib_dm_hdr when sending
72 *   management datagrams.
73 * - The header size must be exactly 64 bytes (IB_MGMT_DEVICE_HDR), since this
74 *   is the header size that is passed to ib_create_send_mad() in ib_srpt.c.
75 * - The maximum supported size for a management datagram when not using RMPP
76 *   is 256 bytes -- 64 bytes header and 192 (IB_MGMT_DEVICE_DATA) bytes data.
77 */
78struct ib_dm_mad {
79	struct ib_mad_hdr mad_hdr;
80	struct ib_rmpp_hdr rmpp_hdr;
81	struct ib_dm_hdr dm_hdr;
82	u8 data[IB_MGMT_DEVICE_DATA];
83};
84
85/*
86 * IOUnitInfo as defined in section 16.3.3.3 IOUnitInfo of the InfiniBand
87 * Architecture Specification.
88 */
89struct ib_dm_iou_info {
90	__be16 change_id;
91	u8 max_controllers;
92	u8 op_rom;
93	u8 controller_list[128];
94};
95
96/*
97 * IOControllerprofile as defined in section 16.3.3.4 IOControllerProfile of
98 * the InfiniBand Architecture Specification.
99 */
100struct ib_dm_ioc_profile {
101	__be64 guid;
102	__be32 vendor_id;
103	__be32 device_id;
104	__be16 device_version;
105	__be16 reserved1;
106	__be32 subsys_vendor_id;
107	__be32 subsys_device_id;
108	__be16 io_class;
109	__be16 io_subclass;
110	__be16 protocol;
111	__be16 protocol_version;
112	__be16 service_conn;
113	__be16 initiators_supported;
114	__be16 send_queue_depth;
115	u8 reserved2;
116	u8 rdma_read_depth;
117	__be32 send_size;
118	__be32 rdma_size;
119	u8 op_cap_mask;
120	u8 svc_cap_mask;
121	u8 num_svc_entries;
122	u8 reserved3[9];
123	u8 id_string[64];
124};
125
126struct ib_dm_svc_entry {
127	u8 name[40];
128	__be64 id;
129};
130
131/*
132 * See also section 16.3.3.5 ServiceEntries in the InfiniBand Architecture
133 * Specification. See also section B.7, table B.8 in the T10 SRP r16a document.
134 */
135struct ib_dm_svc_entries {
136	struct ib_dm_svc_entry service_entries[4];
137};
138
139#endif
140