include/rdma/opa_smi.h

   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
  22 struct 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
  72 struct opa_node_description {
  73         u8 data[64];
  74 } __packed;
  75
  76 struct 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
  94 static inline u8
  95 opa_get_smp_direction(struct opa_smp *smp)
  96 {
  97         return ib_get_smp_direction((struct ib_smp *)smp);
  98 }
  99
 100 static 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
 108 static 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
 116 static 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 */