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
22 struct 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
72 struct opa_node_description {
73 u8 data[64];
74 } __packed;
75
76 struct 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
94 static inline u8
95 opa_get_smp_direction(struct opa_smp *smp)
96 {
97 return ib_get_smp_direction((struct ib_smp *)smp);
98 }
99
100 static 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
108 static 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
116 static 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
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