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ib_dm_mad.h
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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
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7  * COPYING in the main directory of this source tree, or the
8  * OpenIB.org BSD license below:
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10  * Redistribution and use in source and binary forms, with or
11  * without modification, are permitted provided that the following
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13  *
14  * - Redistributions of source code must retain the above
15  * copyright notice, this list of conditions and the following
16  * disclaimer.
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18  * - Redistributions in binary form must reproduce the above
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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 
41 enum {
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 
63 struct 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  */
78 struct 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  */
89 struct 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  */
100 struct 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 
126 struct 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  */
135 struct ib_dm_svc_entries {
136  struct ib_dm_svc_entry service_entries[4];
137 };
138 
139 #endif
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