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 * $FreeBSD: stable/11/sys/ofed/include/rdma/opa_smi.h 331772 2018-03-30 18:17:33Z hselasky $
35 */
36
37#if !defined(OPA_SMI_H)
38#define OPA_SMI_H
39
40#include <rdma/ib_mad.h>
41#include <rdma/ib_smi.h>
42
43#define OPA_SMP_LID_DATA_SIZE			2016
44#define OPA_SMP_DR_DATA_SIZE			1872
45#define OPA_SMP_MAX_PATH_HOPS			64
46
47#define OPA_MAX_VLS				32
48#define OPA_MAX_SLS				32
49#define OPA_MAX_SCS				32
50
51#define OPA_SMI_CLASS_VERSION			0x80
52
53#define OPA_LID_PERMISSIVE			cpu_to_be32(0xFFFFFFFF)
54
55struct opa_smp {
56	u8	base_version;
57	u8	mgmt_class;
58	u8	class_version;
59	u8	method;
60	__be16	status;
61	u8	hop_ptr;
62	u8	hop_cnt;
63	__be64	tid;
64	__be16	attr_id;
65	__be16	resv;
66	__be32	attr_mod;
67	__be64	mkey;
68	union {
69		struct {
70			uint8_t data[OPA_SMP_LID_DATA_SIZE];
71		} lid;
72		struct {
73			__be32	dr_slid;
74			__be32	dr_dlid;
75			u8	initial_path[OPA_SMP_MAX_PATH_HOPS];
76			u8	return_path[OPA_SMP_MAX_PATH_HOPS];
77			u8	reserved[8];
78			u8	data[OPA_SMP_DR_DATA_SIZE];
79		} dr;
80	} route;
81} __packed;
82
83
84/* Subnet management attributes */
85/* ... */
86#define OPA_ATTRIB_ID_NODE_DESCRIPTION		cpu_to_be16(0x0010)
87#define OPA_ATTRIB_ID_NODE_INFO			cpu_to_be16(0x0011)
88#define OPA_ATTRIB_ID_PORT_INFO			cpu_to_be16(0x0015)
89#define OPA_ATTRIB_ID_PARTITION_TABLE		cpu_to_be16(0x0016)
90#define OPA_ATTRIB_ID_SL_TO_SC_MAP		cpu_to_be16(0x0017)
91#define OPA_ATTRIB_ID_VL_ARBITRATION		cpu_to_be16(0x0018)
92#define OPA_ATTRIB_ID_SM_INFO			cpu_to_be16(0x0020)
93#define OPA_ATTRIB_ID_CABLE_INFO		cpu_to_be16(0x0032)
94#define OPA_ATTRIB_ID_AGGREGATE			cpu_to_be16(0x0080)
95#define OPA_ATTRIB_ID_SC_TO_SL_MAP		cpu_to_be16(0x0082)
96#define OPA_ATTRIB_ID_SC_TO_VLR_MAP		cpu_to_be16(0x0083)
97#define OPA_ATTRIB_ID_SC_TO_VLT_MAP		cpu_to_be16(0x0084)
98#define OPA_ATTRIB_ID_SC_TO_VLNT_MAP		cpu_to_be16(0x0085)
99/* ... */
100#define OPA_ATTRIB_ID_PORT_STATE_INFO		cpu_to_be16(0x0087)
101/* ... */
102#define OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE	cpu_to_be16(0x008A)
103/* ... */
104
105struct opa_node_description {
106	u8 data[64];
107} __attribute__ ((packed));
108
109struct opa_node_info {
110	u8      base_version;
111	u8      class_version;
112	u8      node_type;
113	u8      num_ports;
114	__be32  reserved;
115	__be64  system_image_guid;
116	__be64  node_guid;
117	__be64  port_guid;
118	__be16  partition_cap;
119	__be16  device_id;
120	__be32  revision;
121	u8      local_port_num;
122	u8      vendor_id[3];   /* network byte order */
123} __attribute__ ((packed));
124
125#define OPA_PARTITION_TABLE_BLK_SIZE 32
126
127static inline u8
128opa_get_smp_direction(const struct opa_smp *smp)
129{
130	return ib_get_smp_direction((const struct ib_smp *)smp);
131}
132
133static inline u8 *opa_get_smp_data(struct opa_smp *smp)
134{
135	if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
136		return smp->route.dr.data;
137
138	return smp->route.lid.data;
139}
140
141static inline size_t opa_get_smp_data_size(const struct opa_smp *smp)
142{
143	if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
144		return sizeof(smp->route.dr.data);
145
146	return sizeof(smp->route.lid.data);
147}
148
149static inline size_t opa_get_smp_header_size(const struct opa_smp *smp)
150{
151	if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
152		return sizeof(*smp) - sizeof(smp->route.dr.data);
153
154	return sizeof(*smp) - sizeof(smp->route.lid.data);
155}
156
157#endif /* OPA_SMI_H */
158