1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
3 *
4 * Copyright (c) 2014 Intel Corporation. All rights reserved.
5 *
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer.
19 *
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 */
34
35 #if !defined(OPA_SMI_H)
36 #define OPA_SMI_H
37
38 #include <rdma/ib_mad.h>
39 #include <rdma/ib_smi.h>
40
41 #define OPA_SMP_LID_DATA_SIZE 2016
42 #define OPA_SMP_DR_DATA_SIZE 1872
43 #define OPA_SMP_MAX_PATH_HOPS 64
44
45 #define OPA_MAX_VLS 32
46 #define OPA_MAX_SLS 32
47 #define OPA_MAX_SCS 32
48
49 #define OPA_SMI_CLASS_VERSION 0x80
50
51 #define OPA_LID_PERMISSIVE cpu_to_be32(0xFFFFFFFF)
52
53 struct opa_smp {
54 u8 base_version;
55 u8 mgmt_class;
56 u8 class_version;
57 u8 method;
58 __be16 status;
59 u8 hop_ptr;
60 u8 hop_cnt;
61 __be64 tid;
62 __be16 attr_id;
63 __be16 resv;
64 __be32 attr_mod;
65 __be64 mkey;
66 union {
67 struct {
68 uint8_t data[OPA_SMP_LID_DATA_SIZE];
69 } lid;
70 struct {
71 __be32 dr_slid;
72 __be32 dr_dlid;
73 u8 initial_path[OPA_SMP_MAX_PATH_HOPS];
74 u8 return_path[OPA_SMP_MAX_PATH_HOPS];
75 u8 reserved[8];
76 u8 data[OPA_SMP_DR_DATA_SIZE];
77 } dr;
78 } route;
79 } __packed;
80
81
82 /* Subnet management attributes */
83 /* ... */
84 #define OPA_ATTRIB_ID_NODE_DESCRIPTION cpu_to_be16(0x0010)
85 #define OPA_ATTRIB_ID_NODE_INFO cpu_to_be16(0x0011)
86 #define OPA_ATTRIB_ID_PORT_INFO cpu_to_be16(0x0015)
87 #define OPA_ATTRIB_ID_PARTITION_TABLE cpu_to_be16(0x0016)
88 #define OPA_ATTRIB_ID_SL_TO_SC_MAP cpu_to_be16(0x0017)
89 #define OPA_ATTRIB_ID_VL_ARBITRATION cpu_to_be16(0x0018)
90 #define OPA_ATTRIB_ID_SM_INFO cpu_to_be16(0x0020)
91 #define OPA_ATTRIB_ID_CABLE_INFO cpu_to_be16(0x0032)
92 #define OPA_ATTRIB_ID_AGGREGATE cpu_to_be16(0x0080)
93 #define OPA_ATTRIB_ID_SC_TO_SL_MAP cpu_to_be16(0x0082)
94 #define OPA_ATTRIB_ID_SC_TO_VLR_MAP cpu_to_be16(0x0083)
95 #define OPA_ATTRIB_ID_SC_TO_VLT_MAP cpu_to_be16(0x0084)
96 #define OPA_ATTRIB_ID_SC_TO_VLNT_MAP cpu_to_be16(0x0085)
97 /* ... */
98 #define OPA_ATTRIB_ID_PORT_STATE_INFO cpu_to_be16(0x0087)
99 /* ... */
100 #define OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE cpu_to_be16(0x008A)
101 /* ... */
102
103 struct opa_node_description {
104 u8 data[64];
105 } __attribute__ ((packed));
106
107 struct opa_node_info {
108 u8 base_version;
109 u8 class_version;
110 u8 node_type;
111 u8 num_ports;
112 __be32 reserved;
113 __be64 system_image_guid;
114 __be64 node_guid;
115 __be64 port_guid;
116 __be16 partition_cap;
117 __be16 device_id;
118 __be32 revision;
119 u8 local_port_num;
120 u8 vendor_id[3]; /* network byte order */
121 } __attribute__ ((packed));
122
123 #define OPA_PARTITION_TABLE_BLK_SIZE 32
124
125 static inline u8
opa_get_smp_direction(const struct opa_smp * smp)126 opa_get_smp_direction(const struct opa_smp *smp)
127 {
128 return ib_get_smp_direction((const struct ib_smp *)smp);
129 }
130
opa_get_smp_data(struct opa_smp * smp)131 static inline u8 *opa_get_smp_data(struct opa_smp *smp)
132 {
133 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
134 return smp->route.dr.data;
135
136 return smp->route.lid.data;
137 }
138
opa_get_smp_data_size(const struct opa_smp * smp)139 static inline size_t opa_get_smp_data_size(const struct opa_smp *smp)
140 {
141 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
142 return sizeof(smp->route.dr.data);
143
144 return sizeof(smp->route.lid.data);
145 }
146
opa_get_smp_header_size(const struct opa_smp * smp)147 static inline size_t opa_get_smp_header_size(const struct opa_smp *smp)
148 {
149 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
150 return sizeof(*smp) - sizeof(smp->route.dr.data);
151
152 return sizeof(*smp) - sizeof(smp->route.lid.data);
153 }
154
155 #endif /* OPA_SMI_H */
156