ib_smi.h

  1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
  2/*
  3 * Copyright (c) 2004 Mellanox Technologies Ltd.  All rights reserved.
  4 * Copyright (c) 2004 Infinicon Corporation.  All rights reserved.
  5 * Copyright (c) 2004 Intel Corporation.  All rights reserved.
  6 * Copyright (c) 2004 Topspin Corporation.  All rights reserved.
  7 * Copyright (c) 2004 Voltaire Corporation.  All rights reserved.
  8 */
  9
 10#ifndef IB_SMI_H
 11#define IB_SMI_H
 12
 13#include <rdma/ib_mad.h>
 14
 15#define IB_SMP_DATA_SIZE			64
 16#define IB_SMP_MAX_PATH_HOPS			64
 17
 18struct ib_smp {
 19	u8	base_version;
 20	u8	mgmt_class;
 21	u8	class_version;
 22	u8	method;
 23	__be16	status;
 24	u8	hop_ptr;
 25	u8	hop_cnt;
 26	__be64	tid;
 27	__be16	attr_id;
 28	__be16	resv;
 29	__be32	attr_mod;
 30	__be64	mkey;
 31	__be16	dr_slid;
 32	__be16	dr_dlid;
 33	u8	reserved[28];
 34	u8	data[IB_SMP_DATA_SIZE];
 35	u8	initial_path[IB_SMP_MAX_PATH_HOPS];
 36	u8	return_path[IB_SMP_MAX_PATH_HOPS];
 37} __packed;
 38
 39#define IB_SMP_DIRECTION			cpu_to_be16(0x8000)
 40
 41/* Subnet management attributes */
 42#define IB_SMP_ATTR_NOTICE			cpu_to_be16(0x0002)
 43#define IB_SMP_ATTR_NODE_DESC			cpu_to_be16(0x0010)
 44#define IB_SMP_ATTR_NODE_INFO			cpu_to_be16(0x0011)
 45#define IB_SMP_ATTR_SWITCH_INFO			cpu_to_be16(0x0012)
 46#define IB_SMP_ATTR_GUID_INFO			cpu_to_be16(0x0014)
 47#define IB_SMP_ATTR_PORT_INFO			cpu_to_be16(0x0015)
 48#define IB_SMP_ATTR_PKEY_TABLE			cpu_to_be16(0x0016)
 49#define IB_SMP_ATTR_SL_TO_VL_TABLE		cpu_to_be16(0x0017)
 50#define IB_SMP_ATTR_VL_ARB_TABLE		cpu_to_be16(0x0018)
 51#define IB_SMP_ATTR_LINEAR_FORWARD_TABLE	cpu_to_be16(0x0019)
 52#define IB_SMP_ATTR_RANDOM_FORWARD_TABLE	cpu_to_be16(0x001A)
 53#define IB_SMP_ATTR_MCAST_FORWARD_TABLE		cpu_to_be16(0x001B)
 54#define IB_SMP_ATTR_SM_INFO			cpu_to_be16(0x0020)
 55#define IB_SMP_ATTR_VENDOR_DIAG			cpu_to_be16(0x0030)
 56#define IB_SMP_ATTR_LED_INFO			cpu_to_be16(0x0031)
 57#define IB_SMP_ATTR_VENDOR_MASK			cpu_to_be16(0xFF00)
 58
 59struct ib_port_info {
 60	__be64 mkey;
 61	__be64 gid_prefix;
 62	__be16 lid;
 63	__be16 sm_lid;
 64	__be32 cap_mask;
 65	__be16 diag_code;
 66	__be16 mkey_lease_period;
 67	u8 local_port_num;
 68	u8 link_width_enabled;
 69	u8 link_width_supported;
 70	u8 link_width_active;
 71	u8 linkspeed_portstate;			/* 4 bits, 4 bits */
 72	u8 portphysstate_linkdown;		/* 4 bits, 4 bits */
 73	u8 mkeyprot_resv_lmc;			/* 2 bits, 3, 3 */
 74	u8 linkspeedactive_enabled;		/* 4 bits, 4 bits */
 75	u8 neighbormtu_mastersmsl;		/* 4 bits, 4 bits */
 76	u8 vlcap_inittype;			/* 4 bits, 4 bits */
 77	u8 vl_high_limit;
 78	u8 vl_arb_high_cap;
 79	u8 vl_arb_low_cap;
 80	u8 inittypereply_mtucap;		/* 4 bits, 4 bits */
 81	u8 vlstallcnt_hoqlife;			/* 3 bits, 5 bits */
 82	u8 operationalvl_pei_peo_fpi_fpo;	/* 4 bits, 1, 1, 1, 1 */
 83	__be16 mkey_violations;
 84	__be16 pkey_violations;
 85	__be16 qkey_violations;
 86	u8 guid_cap;
 87	u8 clientrereg_resv_subnetto;		/* 1 bit, 2 bits, 5 */
 88	u8 resv_resptimevalue;			/* 3 bits, 5 bits */
 89	u8 localphyerrors_overrunerrors;	/* 4 bits, 4 bits */
 90	__be16 max_credit_hint;
 91	u8 resv;
 92	u8 link_roundtrip_latency[3];
 93};
 94
 95struct ib_node_info {
 96	u8 base_version;
 97	u8 class_version;
 98	u8 node_type;
 99	u8 num_ports;
100	__be64 sys_guid;
101	__be64 node_guid;
102	__be64 port_guid;
103	__be16 partition_cap;
104	__be16 device_id;
105	__be32 revision;
106	u8 local_port_num;
107	u8 vendor_id[3];
108} __packed;
109
110struct ib_vl_weight_elem {
111	u8      vl;     /* IB: VL is low 4 bits, upper 4 bits reserved */
112                        /* OPA: VL is low 5 bits, upper 3 bits reserved */
113	u8      weight;
114};
115
116static inline u8
117ib_get_smp_direction(struct ib_smp *smp)
118{
119	return ((smp->status & IB_SMP_DIRECTION) == IB_SMP_DIRECTION);
120}
121
122/*
123 * SM Trap/Notice numbers
124 */
125#define IB_NOTICE_TRAP_LLI_THRESH	cpu_to_be16(129)
126#define IB_NOTICE_TRAP_EBO_THRESH	cpu_to_be16(130)
127#define IB_NOTICE_TRAP_FLOW_UPDATE	cpu_to_be16(131)
128#define IB_NOTICE_TRAP_CAP_MASK_CHG	cpu_to_be16(144)
129#define IB_NOTICE_TRAP_SYS_GUID_CHG	cpu_to_be16(145)
130#define IB_NOTICE_TRAP_BAD_MKEY		cpu_to_be16(256)
131#define IB_NOTICE_TRAP_BAD_PKEY		cpu_to_be16(257)
132#define IB_NOTICE_TRAP_BAD_QKEY		cpu_to_be16(258)
133
134/*
135 * Other local changes flags (trap 144).
136 */
137#define IB_NOTICE_TRAP_LSE_CHG		0x04	/* Link Speed Enable changed */
138#define IB_NOTICE_TRAP_LWE_CHG		0x02	/* Link Width Enable changed */
139#define IB_NOTICE_TRAP_NODE_DESC_CHG	0x01
140
141/*
142 * M_Key volation flags in dr_trunc_hop (trap 256).
143 */
144#define IB_NOTICE_TRAP_DR_NOTICE	0x80
145#define IB_NOTICE_TRAP_DR_TRUNC		0x40
146
147/**
148 * ib_init_query_mad - Initialize query MAD.
149 * @mad: MAD to initialize.
150 */
151static inline void ib_init_query_mad(struct ib_smp *mad)
152{
153	mad->base_version = IB_MGMT_BASE_VERSION;
154	mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
155	mad->class_version = 1;
156	mad->method = IB_MGMT_METHOD_GET;
157}
158#endif /* IB_SMI_H */