drivers/infiniband/sw/rxe/rxe_param.h

   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
  37 static 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. */
  54 static 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 */
  62 enum rxe_device_param {
  63         RXE_MAX_MR_SIZE                 = -1ull,
  64         RXE_PAGE_SIZE_CAP               = 0xfffff000,
  65         RXE_MAX_QP                      = 0x10000,
  66         RXE_MAX_QP_WR                   = 0x4000,
  67         RXE_MAX_INLINE_DATA             = 400,
  68         RXE_DEVICE_CAP_FLAGS            = IB_DEVICE_BAD_PKEY_CNTR
  69                                         | IB_DEVICE_BAD_QKEY_CNTR
  70                                         | IB_DEVICE_AUTO_PATH_MIG
  71                                         | IB_DEVICE_CHANGE_PHY_PORT
  72                                         | IB_DEVICE_UD_AV_PORT_ENFORCE
  73                                         | IB_DEVICE_PORT_ACTIVE_EVENT
  74                                         | IB_DEVICE_SYS_IMAGE_GUID
  75                                         | IB_DEVICE_RC_RNR_NAK_GEN
  76                                         | IB_DEVICE_SRQ_RESIZE
  77                                         | IB_DEVICE_MEM_MGT_EXTENSIONS
  78                                         | IB_DEVICE_ALLOW_USER_UNREG,
  79         RXE_MAX_SGE                     = 32,
  80         RXE_MAX_SGE_RD                  = 32,
  81         RXE_MAX_CQ                      = 16384,
  82         RXE_MAX_LOG_CQE                 = 15,
  83         RXE_MAX_MR                      = 256 * 1024,
  84         RXE_MAX_PD                      = 0x7ffc,
  85         RXE_MAX_QP_RD_ATOM              = 128,
  86         RXE_MAX_RES_RD_ATOM             = 0x3f000,
  87         RXE_MAX_QP_INIT_RD_ATOM         = 128,
  88         RXE_MAX_MCAST_GRP               = 8192,
  89         RXE_MAX_MCAST_QP_ATTACH         = 56,
  90         RXE_MAX_TOT_MCAST_QP_ATTACH     = 0x70000,
  91         RXE_MAX_AH                      = 100,
  92         RXE_MAX_SRQ                     = 960,
  93         RXE_MAX_SRQ_WR                  = 0x4000,
  94         RXE_MIN_SRQ_WR                  = 1,
  95         RXE_MAX_SRQ_SGE                 = 27,
  96         RXE_MIN_SRQ_SGE                 = 1,
  97         RXE_MAX_FMR_PAGE_LIST_LEN       = 512,
  98         RXE_MAX_PKEYS                   = 64,
  99         RXE_LOCAL_CA_ACK_DELAY          = 15,
 100
 101         RXE_MAX_UCONTEXT                = 512,
 102
 103         RXE_NUM_PORT                    = 1,
 104
 105         RXE_MIN_QP_INDEX                = 16,
 106         RXE_MAX_QP_INDEX                = 0x00020000,
 107
 108         RXE_MIN_SRQ_INDEX               = 0x00020001,
 109         RXE_MAX_SRQ_INDEX               = 0x00040000,
 110
 111         RXE_MIN_MR_INDEX                = 0x00000001,
 112         RXE_MAX_MR_INDEX                = 0x00040000,
 113         RXE_MIN_MW_INDEX                = 0x00040001,
 114         RXE_MAX_MW_INDEX                = 0x00060000,
 115         RXE_MAX_PKT_PER_ACK             = 64,
 116
 117         RXE_MAX_UNACKED_PSNS            = 128,
 118
 119         /* Max inflight SKBs per queue pair */
 120         RXE_INFLIGHT_SKBS_PER_QP_HIGH   = 64,
 121         RXE_INFLIGHT_SKBS_PER_QP_LOW    = 16,
 122
 123         /* Delay before calling arbiter timer */
 124         RXE_NSEC_ARB_TIMER_DELAY        = 200,
 125 };
 126
 127 /* default/initial rxe port parameters */
 128 enum rxe_port_param {
 129         RXE_PORT_GID_TBL_LEN            = 1024,
 130         RXE_PORT_PORT_CAP_FLAGS         = RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP,
 131         RXE_PORT_MAX_MSG_SZ             = 0x800000,
 132         RXE_PORT_BAD_PKEY_CNTR          = 0,
 133         RXE_PORT_QKEY_VIOL_CNTR         = 0,
 134         RXE_PORT_LID                    = 0,
 135         RXE_PORT_SM_LID                 = 0,
 136         RXE_PORT_SM_SL                  = 0,
 137         RXE_PORT_LMC                    = 0,
 138         RXE_PORT_MAX_VL_NUM             = 1,
 139         RXE_PORT_SUBNET_TIMEOUT         = 0,
 140         RXE_PORT_INIT_TYPE_REPLY        = 0,
 141         RXE_PORT_ACTIVE_WIDTH           = IB_WIDTH_1X,
 142         RXE_PORT_ACTIVE_SPEED           = 1,
 143         RXE_PORT_PKEY_TBL_LEN           = 64,
 144         RXE_PORT_PHYS_STATE             = IB_PORT_PHYS_STATE_POLLING,
 145         RXE_PORT_SUBNET_PREFIX          = 0xfe80000000000000ULL,
 146 };
 147
 148 /* default/initial port info parameters */
 149 enum rxe_port_info_param {
 150         RXE_PORT_INFO_VL_CAP            = 4,    /* 1-8 */
 151         RXE_PORT_INFO_MTU_CAP           = 5,    /* 4096 */
 152         RXE_PORT_INFO_OPER_VL           = 1,    /* 1 */
 153 };
 154
 155 #endif /* RXE_PARAM_H */