1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
3 *
4 * Copyright (c) 2004 Mellanox Technologies Ltd. All rights reserved.
5 * Copyright (c) 2004 Infinicon Corporation. All rights reserved.
6 * Copyright (c) 2004 Intel Corporation. All rights reserved.
7 * Copyright (c) 2004 Topspin Corporation. All rights reserved.
8 * Copyright (c) 2004 Voltaire Corporation. All rights reserved.
9 *
10 * This software is available to you under a choice of one of two
11 * licenses. You may choose to be licensed under the terms of the GNU
12 * General Public License (GPL) Version 2, available from the file
13 * COPYING in the main directory of this source tree, or the
14 * OpenIB.org BSD license below:
15 *
16 * Redistribution and use in source and binary forms, with or
17 * without modification, are permitted provided that the following
18 * conditions are met:
19 *
20 * - Redistributions of source code must retain the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer.
23 *
24 * - Redistributions in binary form must reproduce the above
25 * copyright notice, this list of conditions and the following
26 * disclaimer in the documentation and/or other materials
27 * provided with the distribution.
28 *
29 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
30 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
31 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
32 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
33 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
34 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
35 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
36 * SOFTWARE.
37 */
38
39 #if !defined(IB_SMI_H)
40 #define IB_SMI_H
41
42 #include <rdma/ib_mad.h>
43
44 #define IB_SMP_DATA_SIZE 64
45 #define IB_SMP_MAX_PATH_HOPS 64
46
47 struct ib_smp {
48 u8 base_version;
49 u8 mgmt_class;
50 u8 class_version;
51 u8 method;
52 __be16 status;
53 u8 hop_ptr;
54 u8 hop_cnt;
55 __be64 tid;
56 __be16 attr_id;
57 __be16 resv;
58 __be32 attr_mod;
59 __be64 mkey;
60 __be16 dr_slid;
61 __be16 dr_dlid;
62 u8 reserved[28];
63 u8 data[IB_SMP_DATA_SIZE];
64 u8 initial_path[IB_SMP_MAX_PATH_HOPS];
65 u8 return_path[IB_SMP_MAX_PATH_HOPS];
66 } __attribute__ ((packed));
67
68 #define IB_SMP_DIRECTION cpu_to_be16(0x8000)
69
70 /* Subnet management attributes */
71 #define IB_SMP_ATTR_NOTICE cpu_to_be16(0x0002)
72 #define IB_SMP_ATTR_NODE_DESC cpu_to_be16(0x0010)
73 #define IB_SMP_ATTR_NODE_INFO cpu_to_be16(0x0011)
74 #define IB_SMP_ATTR_SWITCH_INFO cpu_to_be16(0x0012)
75 #define IB_SMP_ATTR_GUID_INFO cpu_to_be16(0x0014)
76 #define IB_SMP_ATTR_PORT_INFO cpu_to_be16(0x0015)
77 #define IB_SMP_ATTR_PKEY_TABLE cpu_to_be16(0x0016)
78 #define IB_SMP_ATTR_SL_TO_VL_TABLE cpu_to_be16(0x0017)
79 #define IB_SMP_ATTR_VL_ARB_TABLE cpu_to_be16(0x0018)
80 #define IB_SMP_ATTR_LINEAR_FORWARD_TABLE cpu_to_be16(0x0019)
81 #define IB_SMP_ATTR_RANDOM_FORWARD_TABLE cpu_to_be16(0x001A)
82 #define IB_SMP_ATTR_MCAST_FORWARD_TABLE cpu_to_be16(0x001B)
83 #define IB_SMP_ATTR_SM_INFO cpu_to_be16(0x0020)
84 #define IB_SMP_ATTR_VENDOR_DIAG cpu_to_be16(0x0030)
85 #define IB_SMP_ATTR_LED_INFO cpu_to_be16(0x0031)
86 #define IB_SMP_ATTR_VENDOR_MASK cpu_to_be16(0xFF00)
87
88 struct ib_port_info {
89 __be64 mkey;
90 __be64 gid_prefix;
91 __be16 lid;
92 __be16 sm_lid;
93 __be32 cap_mask;
94 __be16 diag_code;
95 __be16 mkey_lease_period;
96 u8 local_port_num;
97 u8 link_width_enabled;
98 u8 link_width_supported;
99 u8 link_width_active;
100 u8 linkspeed_portstate; /* 4 bits, 4 bits */
101 u8 portphysstate_linkdown; /* 4 bits, 4 bits */
102 u8 mkeyprot_resv_lmc; /* 2 bits, 3, 3 */
103 u8 linkspeedactive_enabled; /* 4 bits, 4 bits */
104 u8 neighbormtu_mastersmsl; /* 4 bits, 4 bits */
105 u8 vlcap_inittype; /* 4 bits, 4 bits */
106 u8 vl_high_limit;
107 u8 vl_arb_high_cap;
108 u8 vl_arb_low_cap;
109 u8 inittypereply_mtucap; /* 4 bits, 4 bits */
110 u8 vlstallcnt_hoqlife; /* 3 bits, 5 bits */
111 u8 operationalvl_pei_peo_fpi_fpo; /* 4 bits, 1, 1, 1, 1 */
112 __be16 mkey_violations;
113 __be16 pkey_violations;
114 __be16 qkey_violations;
115 u8 guid_cap;
116 u8 clientrereg_resv_subnetto; /* 1 bit, 2 bits, 5 */
117 u8 resv_resptimevalue; /* 3 bits, 5 bits */
118 u8 localphyerrors_overrunerrors; /* 4 bits, 4 bits */
119 __be16 max_credit_hint;
120 u8 resv;
121 u8 link_roundtrip_latency[3];
122 };
123
124 struct ib_node_info {
125 u8 base_version;
126 u8 class_version;
127 u8 node_type;
128 u8 num_ports;
129 __be64 sys_guid;
130 __be64 node_guid;
131 __be64 port_guid;
132 __be16 partition_cap;
133 __be16 device_id;
134 __be32 revision;
135 u8 local_port_num;
136 u8 vendor_id[3];
137 } __packed;
138
139 struct ib_vl_weight_elem {
140 u8 vl; /* IB: VL is low 4 bits, upper 4 bits reserved */
141 /* OPA: VL is low 5 bits, upper 3 bits reserved */
142 u8 weight;
143 };
144
145 static inline u8
ib_get_smp_direction(const struct ib_smp * smp)146 ib_get_smp_direction(const struct ib_smp *smp)
147 {
148 return ((smp->status & IB_SMP_DIRECTION) == IB_SMP_DIRECTION);
149 }
150
151 /*
152 * SM Trap/Notice numbers
153 */
154 #define IB_NOTICE_TRAP_LLI_THRESH cpu_to_be16(129)
155 #define IB_NOTICE_TRAP_EBO_THRESH cpu_to_be16(130)
156 #define IB_NOTICE_TRAP_FLOW_UPDATE cpu_to_be16(131)
157 #define IB_NOTICE_TRAP_CAP_MASK_CHG cpu_to_be16(144)
158 #define IB_NOTICE_TRAP_SYS_GUID_CHG cpu_to_be16(145)
159 #define IB_NOTICE_TRAP_BAD_MKEY cpu_to_be16(256)
160 #define IB_NOTICE_TRAP_BAD_PKEY cpu_to_be16(257)
161 #define IB_NOTICE_TRAP_BAD_QKEY cpu_to_be16(258)
162
163 /*
164 * Other local changes flags (trap 144).
165 */
166 #define IB_NOTICE_TRAP_LSE_CHG 0x04 /* Link Speed Enable changed */
167 #define IB_NOTICE_TRAP_LWE_CHG 0x02 /* Link Width Enable changed */
168 #define IB_NOTICE_TRAP_NODE_DESC_CHG 0x01
169
170 /*
171 * M_Key volation flags in dr_trunc_hop (trap 256).
172 */
173 #define IB_NOTICE_TRAP_DR_NOTICE 0x80
174 #define IB_NOTICE_TRAP_DR_TRUNC 0x40
175
176
177 #endif /* IB_SMI_H */
178