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1 | /* |
2 | * Copyright (c) 2014 Intel Corporation. All rights reserved. | |
3 | * | |
4 | * This software is available to you under a choice of one of two | |
5 | * licenses. You may choose to be licensed under the terms of the GNU | |
6 | * General Public License (GPL) Version 2, available from the file | |
7 | * COPYING in the main directory of this source tree, or the | |
8 | * OpenIB.org BSD license below: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or | |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
18 | * - Redistributions in binary form must reproduce the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer in the documentation and/or other materials | |
21 | * provided with the distribution. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
30 | * SOFTWARE. | |
31 | */ | |
32 | ||
33 | #if !defined(OPA_SMI_H) | |
34 | #define OPA_SMI_H | |
35 | ||
36 | #include <rdma/ib_mad.h> | |
37 | #include <rdma/ib_smi.h> | |
38 | ||
39 | #define OPA_SMP_LID_DATA_SIZE 2016 | |
40 | #define OPA_SMP_DR_DATA_SIZE 1872 | |
41 | #define OPA_SMP_MAX_PATH_HOPS 64 | |
42 | ||
43 | #define OPA_SMI_CLASS_VERSION 0x80 | |
44 | ||
45 | #define OPA_LID_PERMISSIVE cpu_to_be32(0xFFFFFFFF) | |
46 | ||
47 | struct opa_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 | union { | |
61 | struct { | |
62 | uint8_t data[OPA_SMP_LID_DATA_SIZE]; | |
63 | } lid; | |
64 | struct { | |
65 | __be32 dr_slid; | |
66 | __be32 dr_dlid; | |
67 | u8 initial_path[OPA_SMP_MAX_PATH_HOPS]; | |
68 | u8 return_path[OPA_SMP_MAX_PATH_HOPS]; | |
69 | u8 reserved[8]; | |
70 | u8 data[OPA_SMP_DR_DATA_SIZE]; | |
71 | } dr; | |
72 | } route; | |
73 | } __packed; | |
74 | ||
75 | ||
76 | static inline u8 | |
77 | opa_get_smp_direction(struct opa_smp *smp) | |
78 | { | |
79 | return ib_get_smp_direction((struct ib_smp *)smp); | |
80 | } | |
81 | ||
82 | static inline u8 *opa_get_smp_data(struct opa_smp *smp) | |
83 | { | |
84 | if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) | |
85 | return smp->route.dr.data; | |
86 | ||
87 | return smp->route.lid.data; | |
88 | } | |
89 | ||
90 | static inline size_t opa_get_smp_data_size(struct opa_smp *smp) | |
91 | { | |
92 | if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) | |
93 | return sizeof(smp->route.dr.data); | |
94 | ||
95 | return sizeof(smp->route.lid.data); | |
96 | } | |
97 | ||
98 | static inline size_t opa_get_smp_header_size(struct opa_smp *smp) | |
99 | { | |
100 | if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) | |
101 | return sizeof(*smp) - sizeof(smp->route.dr.data); | |
102 | ||
103 | return sizeof(*smp) - sizeof(smp->route.lid.data); | |
104 | } | |
105 | ||
106 | #endif /* OPA_SMI_H */ |