include/rdma/ib_smi.h

   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
  45 struct 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                        __constant_htons(0x8000)
  67
  68 /* Subnet management attributes */
  69 #define IB_SMP_ATTR_NOTICE                      __constant_htons(0x0002)
  70 #define IB_SMP_ATTR_NODE_DESC                   __constant_htons(0x0010)
  71 #define IB_SMP_ATTR_NODE_INFO                   __constant_htons(0x0011)
  72 #define IB_SMP_ATTR_SWITCH_INFO                 __constant_htons(0x0012)
  73 #define IB_SMP_ATTR_GUID_INFO                   __constant_htons(0x0014)
  74 #define IB_SMP_ATTR_PORT_INFO                   __constant_htons(0x0015)
  75 #define IB_SMP_ATTR_PKEY_TABLE                  __constant_htons(0x0016)
  76 #define IB_SMP_ATTR_SL_TO_VL_TABLE              __constant_htons(0x0017)
  77 #define IB_SMP_ATTR_VL_ARB_TABLE                __constant_htons(0x0018)
  78 #define IB_SMP_ATTR_LINEAR_FORWARD_TABLE        __constant_htons(0x0019)
  79 #define IB_SMP_ATTR_RANDOM_FORWARD_TABLE        __constant_htons(0x001A)
  80 #define IB_SMP_ATTR_MCAST_FORWARD_TABLE         __constant_htons(0x001B)
  81 #define IB_SMP_ATTR_SM_INFO                     __constant_htons(0x0020)
  82 #define IB_SMP_ATTR_VENDOR_DIAG                 __constant_htons(0x0030)
  83 #define IB_SMP_ATTR_LED_INFO                    __constant_htons(0x0031)
  84 #define IB_SMP_ATTR_VENDOR_MASK                 __constant_htons(0xFF00)
  85
  86 struct 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
 122 static inline u8
 123 ib_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 */