opa_smi.h revision 331769 
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_MAX_VLS				32
44#define OPA_MAX_SLS				32
45#define OPA_MAX_SCS				32
46
47#define OPA_SMI_CLASS_VERSION			0x80
48
49#define OPA_LID_PERMISSIVE			cpu_to_be32(0xFFFFFFFF)
50
51struct opa_smp {
52	u8	base_version;
53	u8	mgmt_class;
54	u8	class_version;
55	u8	method;
56	__be16	status;
57	u8	hop_ptr;
58	u8	hop_cnt;
59	__be64	tid;
60	__be16	attr_id;
61	__be16	resv;
62	__be32	attr_mod;
63	__be64	mkey;
64	union {
65		struct {
66			uint8_t data[OPA_SMP_LID_DATA_SIZE];
67		} lid;
68		struct {
69			__be32	dr_slid;
70			__be32	dr_dlid;
71			u8	initial_path[OPA_SMP_MAX_PATH_HOPS];
72			u8	return_path[OPA_SMP_MAX_PATH_HOPS];
73			u8	reserved[8];
74			u8	data[OPA_SMP_DR_DATA_SIZE];
75		} dr;
76	} route;
77} __packed;
78
79
80/* Subnet management attributes */
81/* ... */
82#define OPA_ATTRIB_ID_NODE_DESCRIPTION		cpu_to_be16(0x0010)
83#define OPA_ATTRIB_ID_NODE_INFO			cpu_to_be16(0x0011)
84#define OPA_ATTRIB_ID_PORT_INFO			cpu_to_be16(0x0015)
85#define OPA_ATTRIB_ID_PARTITION_TABLE		cpu_to_be16(0x0016)
86#define OPA_ATTRIB_ID_SL_TO_SC_MAP		cpu_to_be16(0x0017)
87#define OPA_ATTRIB_ID_VL_ARBITRATION		cpu_to_be16(0x0018)
88#define OPA_ATTRIB_ID_SM_INFO			cpu_to_be16(0x0020)
89#define OPA_ATTRIB_ID_CABLE_INFO		cpu_to_be16(0x0032)
90#define OPA_ATTRIB_ID_AGGREGATE			cpu_to_be16(0x0080)
91#define OPA_ATTRIB_ID_SC_TO_SL_MAP		cpu_to_be16(0x0082)
92#define OPA_ATTRIB_ID_SC_TO_VLR_MAP		cpu_to_be16(0x0083)
93#define OPA_ATTRIB_ID_SC_TO_VLT_MAP		cpu_to_be16(0x0084)
94#define OPA_ATTRIB_ID_SC_TO_VLNT_MAP		cpu_to_be16(0x0085)
95/* ... */
96#define OPA_ATTRIB_ID_PORT_STATE_INFO		cpu_to_be16(0x0087)
97/* ... */
98#define OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE	cpu_to_be16(0x008A)
99/* ... */
100
101struct opa_node_description {
102	u8 data[64];
103} __attribute__ ((packed));
104
105struct opa_node_info {
106	u8      base_version;
107	u8      class_version;
108	u8      node_type;
109	u8      num_ports;
110	__be32  reserved;
111	__be64  system_image_guid;
112	__be64  node_guid;
113	__be64  port_guid;
114	__be16  partition_cap;
115	__be16  device_id;
116	__be32  revision;
117	u8      local_port_num;
118	u8      vendor_id[3];   /* network byte order */
119} __attribute__ ((packed));
120
121#define OPA_PARTITION_TABLE_BLK_SIZE 32
122
123static inline u8
124opa_get_smp_direction(const struct opa_smp *smp)
125{
126	return ib_get_smp_direction((const struct ib_smp *)smp);
127}
128
129static inline u8 *opa_get_smp_data(struct opa_smp *smp)
130{
131	if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
132		return smp->route.dr.data;
133
134	return smp->route.lid.data;
135}
136
137static inline size_t opa_get_smp_data_size(const struct opa_smp *smp)
138{
139	if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
140		return sizeof(smp->route.dr.data);
141
142	return sizeof(smp->route.lid.data);
143}
144
145static inline size_t opa_get_smp_header_size(const struct opa_smp *smp)
146{
147	if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
148		return sizeof(*smp) - sizeof(smp->route.dr.data);
149
150	return sizeof(*smp) - sizeof(smp->route.lid.data);
151}
152
153#endif /* OPA_SMI_H */
154