LXR linux/include/rdma/opa

   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 */
 125