1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2/*
3 * Copyright (c) 2014 Intel Corporation. All rights reserved.
4 */
5
6#ifndef OPA_SMI_H
7#define OPA_SMI_H
8
9#include <rdma/ib_mad.h>
10#include <rdma/ib_smi.h>
11
12#define OPA_SMP_LID_DATA_SIZE 2016
13#define OPA_SMP_DR_DATA_SIZE 1872
14#define OPA_SMP_MAX_PATH_HOPS 64
15
16#define OPA_MAX_VLS 32
17#define OPA_MAX_SLS 32
18#define OPA_MAX_SCS 32
19
20#define OPA_LID_PERMISSIVE cpu_to_be32(0xFFFFFFFF)
21
22struct opa_smp {
23 u8 base_version;
24 u8 mgmt_class;
25 u8 class_version;
26 u8 method;
27 __be16 status;
28 u8 hop_ptr;
29 u8 hop_cnt;
30 __be64 tid;
31 __be16 attr_id;
32 __be16 resv;
33 __be32 attr_mod;
34 __be64 mkey;
35 union {
36 struct {
37 uint8_t data[OPA_SMP_LID_DATA_SIZE];
38 } lid;
39 struct {
40 __be32 dr_slid;
41 __be32 dr_dlid;
42 u8 initial_path[OPA_SMP_MAX_PATH_HOPS];
43 u8 return_path[OPA_SMP_MAX_PATH_HOPS];
44 u8 reserved[8];
45 u8 data[OPA_SMP_DR_DATA_SIZE];
46 } dr;
47 } route;
48} __packed;
49
50
51/* Subnet management attributes */
52/* ... */
53#define OPA_ATTRIB_ID_NODE_DESCRIPTION cpu_to_be16(0x0010)
54#define OPA_ATTRIB_ID_NODE_INFO cpu_to_be16(0x0011)
55#define OPA_ATTRIB_ID_PORT_INFO cpu_to_be16(0x0015)
56#define OPA_ATTRIB_ID_PARTITION_TABLE cpu_to_be16(0x0016)
57#define OPA_ATTRIB_ID_SL_TO_SC_MAP cpu_to_be16(0x0017)
58#define OPA_ATTRIB_ID_VL_ARBITRATION cpu_to_be16(0x0018)
59#define OPA_ATTRIB_ID_SM_INFO cpu_to_be16(0x0020)
60#define OPA_ATTRIB_ID_CABLE_INFO cpu_to_be16(0x0032)
61#define OPA_ATTRIB_ID_AGGREGATE cpu_to_be16(0x0080)
62#define OPA_ATTRIB_ID_SC_TO_SL_MAP cpu_to_be16(0x0082)
63#define OPA_ATTRIB_ID_SC_TO_VLR_MAP cpu_to_be16(0x0083)
64#define OPA_ATTRIB_ID_SC_TO_VLT_MAP cpu_to_be16(0x0084)
65#define OPA_ATTRIB_ID_SC_TO_VLNT_MAP cpu_to_be16(0x0085)
66/* ... */
67#define OPA_ATTRIB_ID_PORT_STATE_INFO cpu_to_be16(0x0087)
68/* ... */
69#define OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE cpu_to_be16(0x008A)
70/* ... */
71
72struct opa_node_description {
73 u8 data[64];
74} __packed;
75
76struct opa_node_info {
77 u8 base_version;
78 u8 class_version;
79 u8 node_type;
80 u8 num_ports;
81 __be32 reserved;
82 __be64 system_image_guid;
83 __be64 node_guid;
84 __be64 port_guid;
85 __be16 partition_cap;
86 __be16 device_id;
87 __be32 revision;
88 u8 local_port_num;
89 u8 vendor_id[3]; /* network byte order */
90} __packed;
91
92#define OPA_PARTITION_TABLE_BLK_SIZE 32
93
94static inline u8
95opa_get_smp_direction(struct opa_smp *smp)
96{
97 return ib_get_smp_direction(smp: (struct ib_smp *)smp);
98}
99
100static inline u8 *opa_get_smp_data(struct opa_smp *smp)
101{
102 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
103 return smp->route.dr.data;
104
105 return smp->route.lid.data;
106}
107
108static inline size_t opa_get_smp_data_size(struct opa_smp *smp)
109{
110 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
111 return sizeof(smp->route.dr.data);
112
113 return sizeof(smp->route.lid.data);
114}
115
116static inline size_t opa_get_smp_header_size(struct opa_smp *smp)
117{
118 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
119 return sizeof(*smp) - sizeof(smp->route.dr.data);
120
121 return sizeof(*smp) - sizeof(smp->route.lid.data);
122}
123
124#endif /* OPA_SMI_H */
125

source code of linux/include/rdma/opa_smi.h