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