LXR linux/include/rdma/opa

   1/*
   2 * Copyright (c) 2014 Intel Corporation.  All rights reserved.
   3 *
   4 * This software is available to you under a choice of one of two
   5 * licenses.  You may choose to be licensed under the terms of the GNU
   6 * General Public License (GPL) Version 2, available from the file
   7 * COPYING in the main directory of this source tree, or the
   8 * OpenIB.org BSD license below:
   9 *
  10 *     Redistribution and use in source and binary forms, with or
  11 *     without modification, are permitted provided that the following
  12 *     conditions are met:
  13 *
  14 *      - Redistributions of source code must retain the above
  15 *        copyright notice, this list of conditions and the following
  16 *        disclaimer.
  17 *
  18 *      - Redistributions in binary form must reproduce the above
  19 *        copyright notice, this list of conditions and the following
  20 *        disclaimer in the documentation and/or other materials
  21 *        provided with the distribution.
  22 *
  23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30 * SOFTWARE.
  31 */
  32
  33#if !defined(OPA_SMI_H)
  34#define OPA_SMI_H
  35
  36#include <rdma/ib_mad.h>
  37#include <rdma/ib_smi.h>
  38
  39#define OPA_SMP_LID_DATA_SIZE                   2016
  40#define OPA_SMP_DR_DATA_SIZE                    1872
  41#define OPA_SMP_MAX_PATH_HOPS                   64
  42
  43#define OPA_MAX_VLS                             32
  44#define OPA_MAX_SLS                             32
  45#define OPA_MAX_SCS                             32
  46
  47#define OPA_LID_PERMISSIVE                      cpu_to_be32(0xFFFFFFFF)
  48
  49struct opa_smp {
  50        u8      base_version;
  51        u8      mgmt_class;
  52        u8      class_version;
  53        u8      method;
  54        __be16  status;
  55        u8      hop_ptr;
  56        u8      hop_cnt;
  57        __be64  tid;
  58        __be16  attr_id;
  59        __be16  resv;
  60        __be32  attr_mod;
  61        __be64  mkey;
  62        union {
  63                struct {
  64                        uint8_t data[OPA_SMP_LID_DATA_SIZE];
  65                } lid;
  66                struct {
  67                        __be32  dr_slid;
  68                        __be32  dr_dlid;
  69                        u8      initial_path[OPA_SMP_MAX_PATH_HOPS];
  70                        u8      return_path[OPA_SMP_MAX_PATH_HOPS];
  71                        u8      reserved[8];
  72                        u8      data[OPA_SMP_DR_DATA_SIZE];
  73                } dr;
  74        } route;
  75} __packed;
  76
  77
  78/* Subnet management attributes */
  79/* ... */
  80#define OPA_ATTRIB_ID_NODE_DESCRIPTION          cpu_to_be16(0x0010)
  81#define OPA_ATTRIB_ID_NODE_INFO                 cpu_to_be16(0x0011)
  82#define OPA_ATTRIB_ID_PORT_INFO                 cpu_to_be16(0x0015)
  83#define OPA_ATTRIB_ID_PARTITION_TABLE           cpu_to_be16(0x0016)
  84#define OPA_ATTRIB_ID_SL_TO_SC_MAP              cpu_to_be16(0x0017)
  85#define OPA_ATTRIB_ID_VL_ARBITRATION            cpu_to_be16(0x0018)
  86#define OPA_ATTRIB_ID_SM_INFO                   cpu_to_be16(0x0020)
  87#define OPA_ATTRIB_ID_CABLE_INFO                cpu_to_be16(0x0032)
  88#define OPA_ATTRIB_ID_AGGREGATE                 cpu_to_be16(0x0080)
  89#define OPA_ATTRIB_ID_SC_TO_SL_MAP              cpu_to_be16(0x0082)
  90#define OPA_ATTRIB_ID_SC_TO_VLR_MAP             cpu_to_be16(0x0083)
  91#define OPA_ATTRIB_ID_SC_TO_VLT_MAP             cpu_to_be16(0x0084)
  92#define OPA_ATTRIB_ID_SC_TO_VLNT_MAP            cpu_to_be16(0x0085)
  93/* ... */
  94#define OPA_ATTRIB_ID_PORT_STATE_INFO           cpu_to_be16(0x0087)
  95/* ... */
  96#define OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE      cpu_to_be16(0x008A)
  97/* ... */
  98
  99struct opa_node_description {
 100        u8 data[64];
 101} __packed;
 102
 103struct opa_node_info {
 104        u8      base_version;
 105        u8      class_version;
 106        u8      node_type;
 107        u8      num_ports;
 108        __be32  reserved;
 109        __be64  system_image_guid;
 110        __be64  node_guid;
 111        __be64  port_guid;
 112        __be16  partition_cap;
 113        __be16  device_id;
 114        __be32  revision;
 115        u8      local_port_num;
 116        u8      vendor_id[3];   /* network byte order */
 117} __packed;
 118
 119#define OPA_PARTITION_TABLE_BLK_SIZE 32
 120
 121static inline u8
 122opa_get_smp_direction(struct opa_smp *smp)
 123{
 124        return ib_get_smp_direction((struct ib_smp *)smp);
 125}
 126
 127static inline u8 *opa_get_smp_data(struct opa_smp *smp)
 128{
 129        if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
 130                return smp->route.dr.data;
 131
 132        return smp->route.lid.data;
 133}
 134
 135static inline size_t opa_get_smp_data_size(struct opa_smp *smp)
 136{
 137        if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
 138                return sizeof(smp->route.dr.data);
 139
 140        return sizeof(smp->route.lid.data);
 141}
 142
 143static inline size_t opa_get_smp_header_size(struct opa_smp *smp)
 144{
 145        if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
 146                return sizeof(*smp) - sizeof(smp->route.dr.data);
 147
 148        return sizeof(*smp) - sizeof(smp->route.lid.data);
 149}
 150
 151#endif /* OPA_SMI_H */
 152