include/rdma/opa_smi.h

   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_SMI_CLASS_VERSION                   0x80
  48
  49 #define OPA_LID_PERMISSIVE                      cpu_to_be32(0xFFFFFFFF)
  50
  51 struct opa_smp {
  52         u8      base_version;
  53         u8      mgmt_class;
  54         u8      class_version;
  55         u8      method;
  56         __be16  status;
  57         u8      hop_ptr;
  58         u8      hop_cnt;
  59         __be64  tid;
  60         __be16  attr_id;
  61         __be16  resv;
  62         __be32  attr_mod;
  63         __be64  mkey;
  64         union {
  65                 struct {
  66                         uint8_t data[OPA_SMP_LID_DATA_SIZE];
  67                 } lid;
  68                 struct {
  69                         __be32  dr_slid;
  70                         __be32  dr_dlid;
  71                         u8      initial_path[OPA_SMP_MAX_PATH_HOPS];
  72                         u8      return_path[OPA_SMP_MAX_PATH_HOPS];
  73                         u8      reserved[8];
  74                         u8      data[OPA_SMP_DR_DATA_SIZE];
  75                 } dr;
  76         } route;
  77 } __packed;
  78
  79
  80 /* Subnet management attributes */
  81 /* ... */
  82 #define OPA_ATTRIB_ID_NODE_DESCRIPTION          cpu_to_be16(0x0010)
  83 #define OPA_ATTRIB_ID_NODE_INFO                 cpu_to_be16(0x0011)
  84 #define OPA_ATTRIB_ID_PORT_INFO                 cpu_to_be16(0x0015)
  85 #define OPA_ATTRIB_ID_PARTITION_TABLE           cpu_to_be16(0x0016)
  86 #define OPA_ATTRIB_ID_SL_TO_SC_MAP              cpu_to_be16(0x0017)
  87 #define OPA_ATTRIB_ID_VL_ARBITRATION            cpu_to_be16(0x0018)
  88 #define OPA_ATTRIB_ID_SM_INFO                   cpu_to_be16(0x0020)
  89 #define OPA_ATTRIB_ID_CABLE_INFO                cpu_to_be16(0x0032)
  90 #define OPA_ATTRIB_ID_AGGREGATE                 cpu_to_be16(0x0080)
  91 #define OPA_ATTRIB_ID_SC_TO_SL_MAP              cpu_to_be16(0x0082)
  92 #define OPA_ATTRIB_ID_SC_TO_VLR_MAP             cpu_to_be16(0x0083)
  93 #define OPA_ATTRIB_ID_SC_TO_VLT_MAP             cpu_to_be16(0x0084)
  94 #define OPA_ATTRIB_ID_SC_TO_VLNT_MAP            cpu_to_be16(0x0085)
  95 /* ... */
  96 #define OPA_ATTRIB_ID_PORT_STATE_INFO           cpu_to_be16(0x0087)
  97 /* ... */
  98 #define OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE      cpu_to_be16(0x008A)
  99 /* ... */
 100
 101 struct opa_node_description {
 102         u8 data[64];
 103 } __attribute__ ((packed));
 104
 105 struct opa_node_info {
 106         u8      base_version;
 107         u8      class_version;
 108         u8      node_type;
 109         u8      num_ports;
 110         __be32  reserved;
 111         __be64  system_image_guid;
 112         __be64  node_guid;
 113         __be64  port_guid;
 114         __be16  partition_cap;
 115         __be16  device_id;
 116         __be32  revision;
 117         u8      local_port_num;
 118         u8      vendor_id[3];   /* network byte order */
 119 } __attribute__ ((packed));
 120
 121 #define OPA_PARTITION_TABLE_BLK_SIZE 32
 122
 123 static inline u8
 124 opa_get_smp_direction(struct opa_smp *smp)
 125 {
 126         return ib_get_smp_direction((struct ib_smp *)smp);
 127 }
 128
 129 static inline u8 *opa_get_smp_data(struct opa_smp *smp)
 130 {
 131         if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
 132                 return smp->route.dr.data;
 133
 134         return smp->route.lid.data;
 135 }
 136
 137 static inline size_t opa_get_smp_data_size(struct opa_smp *smp)
 138 {
 139         if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
 140                 return sizeof(smp->route.dr.data);
 141
 142         return sizeof(smp->route.lid.data);
 143 }
 144
 145 static inline size_t opa_get_smp_header_size(struct opa_smp *smp)
 146 {
 147         if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
 148                 return sizeof(*smp) - sizeof(smp->route.dr.data);
 149
 150         return sizeof(*smp) - sizeof(smp->route.lid.data);
 151 }
 152
 153 #endif /* OPA_SMI_H */