1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2 /*
3 * Copyright (c) 2004 Mellanox Technologies Ltd. All rights reserved.
4 * Copyright (c) 2004 Infinicon Corporation. All rights reserved.
5 * Copyright (c) 2004 Intel Corporation. All rights reserved.
6 * Copyright (c) 2004 Topspin Corporation. All rights reserved.
7 * Copyright (c) 2004 Voltaire Corporation. All rights reserved.
8 */
9
10 #ifndef IB_SMI_H
11 #define IB_SMI_H
12
13 #include <rdma/ib_mad.h>
14
15 #define IB_SMP_DATA_SIZE 64
16 #define IB_SMP_MAX_PATH_HOPS 64
17
18 struct ib_smp {
19 u8 base_version;
20 u8 mgmt_class;
21 u8 class_version;
22 u8 method;
23 __be16 status;
24 u8 hop_ptr;
25 u8 hop_cnt;
26 __be64 tid;
27 __be16 attr_id;
28 __be16 resv;
29 __be32 attr_mod;
30 __be64 mkey;
31 __be16 dr_slid;
32 __be16 dr_dlid;
33 u8 reserved[28];
34 u8 data[IB_SMP_DATA_SIZE];
35 u8 initial_path[IB_SMP_MAX_PATH_HOPS];
36 u8 return_path[IB_SMP_MAX_PATH_HOPS];
37 } __packed;
38
39 #define IB_SMP_DIRECTION cpu_to_be16(0x8000)
40
41 /* Subnet management attributes */
42 #define IB_SMP_ATTR_NOTICE cpu_to_be16(0x0002)
43 #define IB_SMP_ATTR_NODE_DESC cpu_to_be16(0x0010)
44 #define IB_SMP_ATTR_NODE_INFO cpu_to_be16(0x0011)
45 #define IB_SMP_ATTR_SWITCH_INFO cpu_to_be16(0x0012)
46 #define IB_SMP_ATTR_GUID_INFO cpu_to_be16(0x0014)
47 #define IB_SMP_ATTR_PORT_INFO cpu_to_be16(0x0015)
48 #define IB_SMP_ATTR_PKEY_TABLE cpu_to_be16(0x0016)
49 #define IB_SMP_ATTR_SL_TO_VL_TABLE cpu_to_be16(0x0017)
50 #define IB_SMP_ATTR_VL_ARB_TABLE cpu_to_be16(0x0018)
51 #define IB_SMP_ATTR_LINEAR_FORWARD_TABLE cpu_to_be16(0x0019)
52 #define IB_SMP_ATTR_RANDOM_FORWARD_TABLE cpu_to_be16(0x001A)
53 #define IB_SMP_ATTR_MCAST_FORWARD_TABLE cpu_to_be16(0x001B)
54 #define IB_SMP_ATTR_SM_INFO cpu_to_be16(0x0020)
55 #define IB_SMP_ATTR_VENDOR_DIAG cpu_to_be16(0x0030)
56 #define IB_SMP_ATTR_LED_INFO cpu_to_be16(0x0031)
57 #define IB_SMP_ATTR_VENDOR_MASK cpu_to_be16(0xFF00)
58
59 struct ib_port_info {
60 __be64 mkey;
61 __be64 gid_prefix;
62 __be16 lid;
63 __be16 sm_lid;
64 __be32 cap_mask;
65 __be16 diag_code;
66 __be16 mkey_lease_period;
67 u8 local_port_num;
68 u8 link_width_enabled;
69 u8 link_width_supported;
70 u8 link_width_active;
71 u8 linkspeed_portstate; /* 4 bits, 4 bits */
72 u8 portphysstate_linkdown; /* 4 bits, 4 bits */
73 u8 mkeyprot_resv_lmc; /* 2 bits, 3, 3 */
74 u8 linkspeedactive_enabled; /* 4 bits, 4 bits */
75 u8 neighbormtu_mastersmsl; /* 4 bits, 4 bits */
76 u8 vlcap_inittype; /* 4 bits, 4 bits */
77 u8 vl_high_limit;
78 u8 vl_arb_high_cap;
79 u8 vl_arb_low_cap;
80 u8 inittypereply_mtucap; /* 4 bits, 4 bits */
81 u8 vlstallcnt_hoqlife; /* 3 bits, 5 bits */
82 u8 operationalvl_pei_peo_fpi_fpo; /* 4 bits, 1, 1, 1, 1 */
83 __be16 mkey_violations;
84 __be16 pkey_violations;
85 __be16 qkey_violations;
86 u8 guid_cap;
87 u8 clientrereg_resv_subnetto; /* 1 bit, 2 bits, 5 */
88 u8 resv_resptimevalue; /* 3 bits, 5 bits */
89 u8 localphyerrors_overrunerrors; /* 4 bits, 4 bits */
90 __be16 max_credit_hint;
91 u8 resv;
92 u8 link_roundtrip_latency[3];
93 };
94
95 struct ib_node_info {
96 u8 base_version;
97 u8 class_version;
98 u8 node_type;
99 u8 num_ports;
100 __be64 sys_guid;
101 __be64 node_guid;
102 __be64 port_guid;
103 __be16 partition_cap;
104 __be16 device_id;
105 __be32 revision;
106 u8 local_port_num;
107 u8 vendor_id[3];
108 } __packed;
109
110 struct ib_vl_weight_elem {
111 u8 vl; /* IB: VL is low 4 bits, upper 4 bits reserved */
112 /* OPA: VL is low 5 bits, upper 3 bits reserved */
113 u8 weight;
114 };
115
116 static inline u8
ib_get_smp_direction(struct ib_smp * smp)117 ib_get_smp_direction(struct ib_smp *smp)
118 {
119 return ((smp->status & IB_SMP_DIRECTION) == IB_SMP_DIRECTION);
120 }
121
122 /*
123 * SM Trap/Notice numbers
124 */
125 #define IB_NOTICE_TRAP_LLI_THRESH cpu_to_be16(129)
126 #define IB_NOTICE_TRAP_EBO_THRESH cpu_to_be16(130)
127 #define IB_NOTICE_TRAP_FLOW_UPDATE cpu_to_be16(131)
128 #define IB_NOTICE_TRAP_CAP_MASK_CHG cpu_to_be16(144)
129 #define IB_NOTICE_TRAP_SYS_GUID_CHG cpu_to_be16(145)
130 #define IB_NOTICE_TRAP_BAD_MKEY cpu_to_be16(256)
131 #define IB_NOTICE_TRAP_BAD_PKEY cpu_to_be16(257)
132 #define IB_NOTICE_TRAP_BAD_QKEY cpu_to_be16(258)
133
134 /*
135 * Other local changes flags (trap 144).
136 */
137 #define IB_NOTICE_TRAP_LSE_CHG 0x04 /* Link Speed Enable changed */
138 #define IB_NOTICE_TRAP_LWE_CHG 0x02 /* Link Width Enable changed */
139 #define IB_NOTICE_TRAP_NODE_DESC_CHG 0x01
140
141 /*
142 * M_Key volation flags in dr_trunc_hop (trap 256).
143 */
144 #define IB_NOTICE_TRAP_DR_NOTICE 0x80
145 #define IB_NOTICE_TRAP_DR_TRUNC 0x40
146
147 /**
148 * ib_init_query_mad - Initialize query MAD.
149 * @mad: MAD to initialize.
150 */
ib_init_query_mad(struct ib_smp * mad)151 static inline void ib_init_query_mad(struct ib_smp *mad)
152 {
153 mad->base_version = IB_MGMT_BASE_VERSION;
154 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
155 mad->class_version = 1;
156 mad->method = IB_MGMT_METHOD_GET;
157 }
158 #endif /* IB_SMI_H */
159