GNU Linux-libre 6.9.2-gnu
[releases.git] / include / rdma / opa_smi.h
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 */