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 */