1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2/*
3 * Copyright (c) 2014 Intel Corporation.  All rights reserved.
4 */
5
6#ifndef OPA_SMI_H
7#define OPA_SMI_H
8
9#include <rdma/ib_mad.h>
10#include <rdma/ib_smi.h>
11
12#define OPA_SMP_LID_DATA_SIZE			2016
13#define OPA_SMP_DR_DATA_SIZE			1872
14#define OPA_SMP_MAX_PATH_HOPS			64
15
16#define OPA_MAX_VLS				32
17#define OPA_MAX_SLS				32
18#define OPA_MAX_SCS				32
19
20#define OPA_LID_PERMISSIVE			cpu_to_be32(0xFFFFFFFF)
21
22struct opa_smp {
23	u8	base_version;
24	u8	mgmt_class;
25	u8	class_version;
26	u8	method;
27	__be16	status;
28	u8	hop_ptr;
29	u8	hop_cnt;
30	__be64	tid;
31	__be16	attr_id;
32	__be16	resv;
33	__be32	attr_mod;
34	__be64	mkey;
35	union {
36		struct {
37			uint8_t data[OPA_SMP_LID_DATA_SIZE];
38		} lid;
39		struct {
40			__be32	dr_slid;
41			__be32	dr_dlid;
42			u8	initial_path[OPA_SMP_MAX_PATH_HOPS];
43			u8	return_path[OPA_SMP_MAX_PATH_HOPS];
44			u8	reserved[8];
45			u8	data[OPA_SMP_DR_DATA_SIZE];
46		} dr;
47	} route;
48} __packed;
49
50
51/* Subnet management attributes */
52/* ... */
53#define OPA_ATTRIB_ID_NODE_DESCRIPTION		cpu_to_be16(0x0010)
54#define OPA_ATTRIB_ID_NODE_INFO			cpu_to_be16(0x0011)
55#define OPA_ATTRIB_ID_PORT_INFO			cpu_to_be16(0x0015)
56#define OPA_ATTRIB_ID_PARTITION_TABLE		cpu_to_be16(0x0016)
57#define OPA_ATTRIB_ID_SL_TO_SC_MAP		cpu_to_be16(0x0017)
58#define OPA_ATTRIB_ID_VL_ARBITRATION		cpu_to_be16(0x0018)
59#define OPA_ATTRIB_ID_SM_INFO			cpu_to_be16(0x0020)
60#define OPA_ATTRIB_ID_CABLE_INFO		cpu_to_be16(0x0032)
61#define OPA_ATTRIB_ID_AGGREGATE			cpu_to_be16(0x0080)
62#define OPA_ATTRIB_ID_SC_TO_SL_MAP		cpu_to_be16(0x0082)
63#define OPA_ATTRIB_ID_SC_TO_VLR_MAP		cpu_to_be16(0x0083)
64#define OPA_ATTRIB_ID_SC_TO_VLT_MAP		cpu_to_be16(0x0084)
65#define OPA_ATTRIB_ID_SC_TO_VLNT_MAP		cpu_to_be16(0x0085)
66/* ... */
67#define OPA_ATTRIB_ID_PORT_STATE_INFO		cpu_to_be16(0x0087)
68/* ... */
69#define OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE	cpu_to_be16(0x008A)
70/* ... */
71
72struct opa_node_description {
73	u8 data[64];
74} __packed;
75
76struct opa_node_info {
77	u8      base_version;
78	u8      class_version;
79	u8      node_type;
80	u8      num_ports;
81	__be32  reserved;
82	__be64  system_image_guid;
83	__be64  node_guid;
84	__be64  port_guid;
85	__be16  partition_cap;
86	__be16  device_id;
87	__be32  revision;
88	u8      local_port_num;
89	u8      vendor_id[3];   /* network byte order */
90} __packed;
91
92#define OPA_PARTITION_TABLE_BLK_SIZE 32
93
94static inline u8
95opa_get_smp_direction(struct opa_smp *smp)
96{
97	return ib_get_smp_direction((struct ib_smp *)smp);
98}
99
100static inline u8 *opa_get_smp_data(struct opa_smp *smp)
101{
102	if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
103		return smp->route.dr.data;
104
105	return smp->route.lid.data;
106}
107
108static inline size_t opa_get_smp_data_size(struct opa_smp *smp)
109{
110	if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
111		return sizeof(smp->route.dr.data);
112
113	return sizeof(smp->route.lid.data);
114}
115
116static inline size_t opa_get_smp_header_size(struct opa_smp *smp)
117{
118	if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
119		return sizeof(*smp) - sizeof(smp->route.dr.data);
120
121	return sizeof(*smp) - sizeof(smp->route.lid.data);
122}
123
124#endif /* OPA_SMI_H */
125