include/rdma/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
  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 #endif /* IB_SMI_H */