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 18 struct 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 59 struct 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 95 struct 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; 109 110 struct 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 }; 115 116 static inline u8 117 ib_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 */ 151 static 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 */ 159