LXR linux/drivers/infiniband/sw/rxe/rxe

   1/*
   2 * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
   3 * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved.
   4 *
   5 * This software is available to you under a choice of one of two
   6 * licenses.  You may choose to be licensed under the terms of the GNU
   7 * General Public License (GPL) Version 2, available from the file
   8 * COPYING in the main directory of this source tree, or the
   9 * OpenIB.org BSD license below:
  10 *
  11 *     Redistribution and use in source and binary forms, with or
  12 *     without modification, are permitted provided that the following
  13 *     conditions are met:
  14 *
  15 *      - Redistributions of source code must retain the above
  16 *        copyright notice, this list of conditions and the following
  17 *        disclaimer.
  18 *
  19 *      - Redistributions in binary form must reproduce the above
  20 *        copyright notice, this list of conditions and the following
  21 *        disclaimer in the documentation and/or other materials
  22 *        provided with the distribution.
  23 *
  24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  31 * SOFTWARE.
  32 */
  33
  34#ifndef RXE_PARAM_H
  35#define RXE_PARAM_H
  36
  37static inline enum ib_mtu rxe_mtu_int_to_enum(int mtu)
  38{
  39        if (mtu < 256)
  40                return 0;
  41        else if (mtu < 512)
  42                return IB_MTU_256;
  43        else if (mtu < 1024)
  44                return IB_MTU_512;
  45        else if (mtu < 2048)
  46                return IB_MTU_1024;
  47        else if (mtu < 4096)
  48                return IB_MTU_2048;
  49        else
  50                return IB_MTU_4096;
  51}
  52
  53/* Find the IB mtu for a given network MTU. */
  54static inline enum ib_mtu eth_mtu_int_to_enum(int mtu)
  55{
  56        mtu -= RXE_MAX_HDR_LENGTH;
  57
  58        return rxe_mtu_int_to_enum(mtu);
  59}
  60
  61/* default/initial rxe device parameter settings */
  62enum rxe_device_param {
  63        RXE_FW_VER                      = 0,
  64        RXE_MAX_MR_SIZE                 = -1ull,
  65        RXE_PAGE_SIZE_CAP               = 0xfffff000,
  66        RXE_VENDOR_ID                   = 0,
  67        RXE_VENDOR_PART_ID              = 0,
  68        RXE_HW_VER                      = 0,
  69        RXE_MAX_QP                      = 0x10000,
  70        RXE_MAX_QP_WR                   = 0x4000,
  71        RXE_MAX_INLINE_DATA             = 400,
  72        RXE_DEVICE_CAP_FLAGS            = IB_DEVICE_BAD_PKEY_CNTR
  73                                        | IB_DEVICE_BAD_QKEY_CNTR
  74                                        | IB_DEVICE_AUTO_PATH_MIG
  75                                        | IB_DEVICE_CHANGE_PHY_PORT
  76                                        | IB_DEVICE_UD_AV_PORT_ENFORCE
  77                                        | IB_DEVICE_PORT_ACTIVE_EVENT
  78                                        | IB_DEVICE_SYS_IMAGE_GUID
  79                                        | IB_DEVICE_RC_RNR_NAK_GEN
  80                                        | IB_DEVICE_SRQ_RESIZE
  81                                        | IB_DEVICE_MEM_MGT_EXTENSIONS,
  82        RXE_MAX_SGE                     = 32,
  83        RXE_MAX_SGE_RD                  = 32,
  84        RXE_MAX_CQ                      = 16384,
  85        RXE_MAX_LOG_CQE                 = 15,
  86        RXE_MAX_MR                      = 2 * 1024,
  87        RXE_MAX_PD                      = 0x7ffc,
  88        RXE_MAX_QP_RD_ATOM              = 128,
  89        RXE_MAX_EE_RD_ATOM              = 0,
  90        RXE_MAX_RES_RD_ATOM             = 0x3f000,
  91        RXE_MAX_QP_INIT_RD_ATOM         = 128,
  92        RXE_MAX_EE_INIT_RD_ATOM         = 0,
  93        RXE_ATOMIC_CAP                  = 1,
  94        RXE_MAX_EE                      = 0,
  95        RXE_MAX_RDD                     = 0,
  96        RXE_MAX_MW                      = 0,
  97        RXE_MAX_RAW_IPV6_QP             = 0,
  98        RXE_MAX_RAW_ETHY_QP             = 0,
  99        RXE_MAX_MCAST_GRP               = 8192,
 100        RXE_MAX_MCAST_QP_ATTACH         = 56,
 101        RXE_MAX_TOT_MCAST_QP_ATTACH     = 0x70000,
 102        RXE_MAX_AH                      = 100,
 103        RXE_MAX_FMR                     = 0,
 104        RXE_MAX_MAP_PER_FMR             = 0,
 105        RXE_MAX_SRQ                     = 960,
 106        RXE_MAX_SRQ_WR                  = 0x4000,
 107        RXE_MIN_SRQ_WR                  = 1,
 108        RXE_MAX_SRQ_SGE                 = 27,
 109        RXE_MIN_SRQ_SGE                 = 1,
 110        RXE_MAX_FMR_PAGE_LIST_LEN       = 512,
 111        RXE_MAX_PKEYS                   = 64,
 112        RXE_LOCAL_CA_ACK_DELAY          = 15,
 113
 114        RXE_MAX_UCONTEXT                = 512,
 115
 116        RXE_NUM_PORT                    = 1,
 117
 118        RXE_MIN_QP_INDEX                = 16,
 119        RXE_MAX_QP_INDEX                = 0x00020000,
 120
 121        RXE_MIN_SRQ_INDEX               = 0x00020001,
 122        RXE_MAX_SRQ_INDEX               = 0x00040000,
 123
 124        RXE_MIN_MR_INDEX                = 0x00000001,
 125        RXE_MAX_MR_INDEX                = 0x00040000,
 126        RXE_MIN_MW_INDEX                = 0x00040001,
 127        RXE_MAX_MW_INDEX                = 0x00060000,
 128        RXE_MAX_PKT_PER_ACK             = 64,
 129
 130        RXE_MAX_UNACKED_PSNS            = 128,
 131
 132        /* Max inflight SKBs per queue pair */
 133        RXE_INFLIGHT_SKBS_PER_QP_HIGH   = 64,
 134        RXE_INFLIGHT_SKBS_PER_QP_LOW    = 16,
 135
 136        /* Delay before calling arbiter timer */
 137        RXE_NSEC_ARB_TIMER_DELAY        = 200,
 138};
 139
 140/* default/initial rxe port parameters */
 141enum rxe_port_param {
 142        RXE_PORT_STATE                  = IB_PORT_DOWN,
 143        RXE_PORT_MAX_MTU                = IB_MTU_4096,
 144        RXE_PORT_ACTIVE_MTU             = IB_MTU_256,
 145        RXE_PORT_GID_TBL_LEN            = 1024,
 146        RXE_PORT_PORT_CAP_FLAGS         = RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP,
 147        RXE_PORT_MAX_MSG_SZ             = 0x800000,
 148        RXE_PORT_BAD_PKEY_CNTR          = 0,
 149        RXE_PORT_QKEY_VIOL_CNTR         = 0,
 150        RXE_PORT_LID                    = 0,
 151        RXE_PORT_SM_LID                 = 0,
 152        RXE_PORT_SM_SL                  = 0,
 153        RXE_PORT_LMC                    = 0,
 154        RXE_PORT_MAX_VL_NUM             = 1,
 155        RXE_PORT_SUBNET_TIMEOUT         = 0,
 156        RXE_PORT_INIT_TYPE_REPLY        = 0,
 157        RXE_PORT_ACTIVE_WIDTH           = IB_WIDTH_1X,
 158        RXE_PORT_ACTIVE_SPEED           = 1,
 159        RXE_PORT_PKEY_TBL_LEN           = 64,
 160        RXE_PORT_PHYS_STATE             = 2,
 161        RXE_PORT_SUBNET_PREFIX          = 0xfe80000000000000ULL,
 162};
 163
 164/* default/initial port info parameters */
 165enum rxe_port_info_param {
 166        RXE_PORT_INFO_VL_CAP            = 4,    /* 1-8 */
 167        RXE_PORT_INFO_MTU_CAP           = 5,    /* 4096 */
 168        RXE_PORT_INFO_OPER_VL           = 1,    /* 1 */
 169};
 170
 171#endif /* RXE_PARAM_H */
 172