Root/include/rdma/ib_smi.h

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
45struct 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} __attribute__ ((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
86struct 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
122static inline u8
123ib_get_smp_direction(struct ib_smp *smp)
124{
125    return ((smp->status & IB_SMP_DIRECTION) == IB_SMP_DIRECTION);
126}
127
128#endif /* IB_SMI_H */
129

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