1/*-
2 * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
3 *
4 * Copyright (c) 2014 Intel Corporation.  All rights reserved.
5 *
6 * This software is available to you under a choice of one of two
7 * licenses.  You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 *     Redistribution and use in source and binary forms, with or
13 *     without modification, are permitted provided that the following
14 *     conditions are met:
15 *
16 *      - Redistributions of source code must retain the above
17 *        copyright notice, this list of conditions and the following
18 *        disclaimer.
19 *
20 *      - Redistributions in binary form must reproduce the above
21 *        copyright notice, this list of conditions and the following
22 *        disclaimer in the documentation and/or other materials
23 *        provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 */
34
35#if !defined(OPA_SMI_H)
36#define OPA_SMI_H
37
38#include <rdma/ib_mad.h>
39#include <rdma/ib_smi.h>
40
41#define OPA_SMP_LID_DATA_SIZE			2016
42#define OPA_SMP_DR_DATA_SIZE			1872
43#define OPA_SMP_MAX_PATH_HOPS			64
44
45#define OPA_MAX_VLS				32
46#define OPA_MAX_SLS				32
47#define OPA_MAX_SCS				32
48
49#define OPA_SMI_CLASS_VERSION			0x80
50
51#define OPA_LID_PERMISSIVE			cpu_to_be32(0xFFFFFFFF)
52
53struct opa_smp {
54	u8	base_version;
55	u8	mgmt_class;
56	u8	class_version;
57	u8	method;
58	__be16	status;
59	u8	hop_ptr;
60	u8	hop_cnt;
61	__be64	tid;
62	__be16	attr_id;
63	__be16	resv;
64	__be32	attr_mod;
65	__be64	mkey;
66	union {
67		struct {
68			uint8_t data[OPA_SMP_LID_DATA_SIZE];
69		} lid;
70		struct {
71			__be32	dr_slid;
72			__be32	dr_dlid;
73			u8	initial_path[OPA_SMP_MAX_PATH_HOPS];
74			u8	return_path[OPA_SMP_MAX_PATH_HOPS];
75			u8	reserved[8];
76			u8	data[OPA_SMP_DR_DATA_SIZE];
77		} dr;
78	} route;
79} __packed;
80
81
82/* Subnet management attributes */
83/* ... */
84#define OPA_ATTRIB_ID_NODE_DESCRIPTION		cpu_to_be16(0x0010)
85#define OPA_ATTRIB_ID_NODE_INFO			cpu_to_be16(0x0011)
86#define OPA_ATTRIB_ID_PORT_INFO			cpu_to_be16(0x0015)
87#define OPA_ATTRIB_ID_PARTITION_TABLE		cpu_to_be16(0x0016)
88#define OPA_ATTRIB_ID_SL_TO_SC_MAP		cpu_to_be16(0x0017)
89#define OPA_ATTRIB_ID_VL_ARBITRATION		cpu_to_be16(0x0018)
90#define OPA_ATTRIB_ID_SM_INFO			cpu_to_be16(0x0020)
91#define OPA_ATTRIB_ID_CABLE_INFO		cpu_to_be16(0x0032)
92#define OPA_ATTRIB_ID_AGGREGATE			cpu_to_be16(0x0080)
93#define OPA_ATTRIB_ID_SC_TO_SL_MAP		cpu_to_be16(0x0082)
94#define OPA_ATTRIB_ID_SC_TO_VLR_MAP		cpu_to_be16(0x0083)
95#define OPA_ATTRIB_ID_SC_TO_VLT_MAP		cpu_to_be16(0x0084)
96#define OPA_ATTRIB_ID_SC_TO_VLNT_MAP		cpu_to_be16(0x0085)
97/* ... */
98#define OPA_ATTRIB_ID_PORT_STATE_INFO		cpu_to_be16(0x0087)
99/* ... */
100#define OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE	cpu_to_be16(0x008A)
101/* ... */
102
103struct opa_node_description {
104	u8 data[64];
105} __attribute__ ((packed));
106
107struct opa_node_info {
108	u8      base_version;
109	u8      class_version;
110	u8      node_type;
111	u8      num_ports;
112	__be32  reserved;
113	__be64  system_image_guid;
114	__be64  node_guid;
115	__be64  port_guid;
116	__be16  partition_cap;
117	__be16  device_id;
118	__be32  revision;
119	u8      local_port_num;
120	u8      vendor_id[3];   /* network byte order */
121} __attribute__ ((packed));
122
123#define OPA_PARTITION_TABLE_BLK_SIZE 32
124
125static inline u8
126opa_get_smp_direction(const struct opa_smp *smp)
127{
128	return ib_get_smp_direction((const struct ib_smp *)smp);
129}
130
131static inline u8 *opa_get_smp_data(struct opa_smp *smp)
132{
133	if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
134		return smp->route.dr.data;
135
136	return smp->route.lid.data;
137}
138
139static inline size_t opa_get_smp_data_size(const struct opa_smp *smp)
140{
141	if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
142		return sizeof(smp->route.dr.data);
143
144	return sizeof(smp->route.lid.data);
145}
146
147static inline size_t opa_get_smp_header_size(const struct opa_smp *smp)
148{
149	if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
150		return sizeof(*smp) - sizeof(smp->route.dr.data);
151
152	return sizeof(*smp) - sizeof(smp->route.lid.data);
153}
154
155#endif /* OPA_SMI_H */
156