linux/include/rdma/ib_smi.h
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   1/*
   2 * Copyright (c) 2004 Mellanox Technologies Ltd.  All rights reserved.
   3 * Copyright (c) 2004 Infinicon Corporation.  All rights reserved.
   4 * Copyright (c) 2004 Intel Corporation.  All rights reserved.
   5 * Copyright (c) 2004 Topspin Corporation.  All rights reserved.
   6 * Copyright (c) 2004 Voltaire Corporation.  All rights reserved.
   7 *
   8 * This software is available to you under a choice of one of two
   9 * licenses.  You may choose to be licensed under the terms of the GNU
  10 * General Public License (GPL) Version 2, available from the file
  11 * COPYING in the main directory of this source tree, or the
  12 * OpenIB.org BSD license below:
  13 *
  14 *     Redistribution and use in source and binary forms, with or
  15 *     without modification, are permitted provided that the following
  16 *     conditions are met:
  17 *
  18 *      - Redistributions of source code must retain the above
  19 *        copyright notice, this list of conditions and the following
  20 *        disclaimer.
  21 *
  22 *      - Redistributions in binary form must reproduce the above
  23 *        copyright notice, this list of conditions and the following
  24 *        disclaimer in the documentation and/or other materials
  25 *        provided with the distribution.
  26 *
  27 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  28 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  29 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  30 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  31 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  32 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  33 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  34 * SOFTWARE.
  35 */
  36
  37#if !defined(IB_SMI_H)
  38#define IB_SMI_H
  39
  40#include <rdma/ib_mad.h>
  41
  42#define IB_SMP_DATA_SIZE                        64
  43#define IB_SMP_MAX_PATH_HOPS                    64
  44
  45struct ib_smp {
  46        u8      base_version;
  47        u8      mgmt_class;
  48        u8      class_version;
  49        u8      method;
  50        __be16  status;
  51        u8      hop_ptr;
  52        u8      hop_cnt;
  53        __be64  tid;
  54        __be16  attr_id;
  55        __be16  resv;
  56        __be32  attr_mod;
  57        __be64  mkey;
  58        __be16  dr_slid;
  59        __be16  dr_dlid;
  60        u8      reserved[28];
  61        u8      data[IB_SMP_DATA_SIZE];
  62        u8      initial_path[IB_SMP_MAX_PATH_HOPS];
  63        u8      return_path[IB_SMP_MAX_PATH_HOPS];
  64} __attribute__ ((packed));
  65
  66#define IB_SMP_DIRECTION                        cpu_to_be16(0x8000)
  67
  68/* Subnet management attributes */
  69#define IB_SMP_ATTR_NOTICE                      cpu_to_be16(0x0002)
  70#define IB_SMP_ATTR_NODE_DESC                   cpu_to_be16(0x0010)
  71#define IB_SMP_ATTR_NODE_INFO                   cpu_to_be16(0x0011)
  72#define IB_SMP_ATTR_SWITCH_INFO                 cpu_to_be16(0x0012)
  73#define IB_SMP_ATTR_GUID_INFO                   cpu_to_be16(0x0014)
  74#define IB_SMP_ATTR_PORT_INFO                   cpu_to_be16(0x0015)
  75#define IB_SMP_ATTR_PKEY_TABLE                  cpu_to_be16(0x0016)
  76#define IB_SMP_ATTR_SL_TO_VL_TABLE              cpu_to_be16(0x0017)
  77#define IB_SMP_ATTR_VL_ARB_TABLE                cpu_to_be16(0x0018)
  78#define IB_SMP_ATTR_LINEAR_FORWARD_TABLE        cpu_to_be16(0x0019)
  79#define IB_SMP_ATTR_RANDOM_FORWARD_TABLE        cpu_to_be16(0x001A)
  80#define IB_SMP_ATTR_MCAST_FORWARD_TABLE         cpu_to_be16(0x001B)
  81#define IB_SMP_ATTR_SM_INFO                     cpu_to_be16(0x0020)
  82#define IB_SMP_ATTR_VENDOR_DIAG                 cpu_to_be16(0x0030)
  83#define IB_SMP_ATTR_LED_INFO                    cpu_to_be16(0x0031)
  84#define IB_SMP_ATTR_VENDOR_MASK                 cpu_to_be16(0xFF00)
  85
  86struct ib_port_info {
  87        __be64 mkey;
  88        __be64 gid_prefix;
  89        __be16 lid;
  90        __be16 sm_lid;
  91        __be32 cap_mask;
  92        __be16 diag_code;
  93        __be16 mkey_lease_period;
  94        u8 local_port_num;
  95        u8 link_width_enabled;
  96        u8 link_width_supported;
  97        u8 link_width_active;
  98        u8 linkspeed_portstate;                 /* 4 bits, 4 bits */
  99        u8 portphysstate_linkdown;              /* 4 bits, 4 bits */
 100        u8 mkeyprot_resv_lmc;                   /* 2 bits, 3, 3 */
 101        u8 linkspeedactive_enabled;             /* 4 bits, 4 bits */
 102        u8 neighbormtu_mastersmsl;              /* 4 bits, 4 bits */
 103        u8 vlcap_inittype;                      /* 4 bits, 4 bits */
 104        u8 vl_high_limit;
 105        u8 vl_arb_high_cap;
 106        u8 vl_arb_low_cap;
 107        u8 inittypereply_mtucap;                /* 4 bits, 4 bits */
 108        u8 vlstallcnt_hoqlife;                  /* 3 bits, 5 bits */
 109        u8 operationalvl_pei_peo_fpi_fpo;       /* 4 bits, 1, 1, 1, 1 */
 110        __be16 mkey_violations;
 111        __be16 pkey_violations;
 112        __be16 qkey_violations;
 113        u8 guid_cap;
 114        u8 clientrereg_resv_subnetto;           /* 1 bit, 2 bits, 5 */
 115        u8 resv_resptimevalue;                  /* 3 bits, 5 bits */
 116        u8 localphyerrors_overrunerrors;        /* 4 bits, 4 bits */
 117        __be16 max_credit_hint;
 118        u8 resv;
 119        u8 link_roundtrip_latency[3];
 120};
 121
 122static inline u8
 123ib_get_smp_direction(struct ib_smp *smp)
 124{
 125        return ((smp->status & IB_SMP_DIRECTION) == IB_SMP_DIRECTION);
 126}
 127
 128#endif /* IB_SMI_H */
 129
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