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