sw/rxe/rxe_param.h

   1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
   2 /*
   3  * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
   4  * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved.
   5  */
   6
   7 #ifndef RXE_PARAM_H
   8 #define RXE_PARAM_H
   9
  10 #include <uapi/rdma/rdma_user_rxe.h>
  11
  12 #define DEFAULT_MAX_VALUE (1 << 20)
  13
  14 static inline enum ib_mtu rxe_mtu_int_to_enum(int mtu)
  15 {
  16         if (mtu < 256)
  17                 return 0;
  18         else if (mtu < 512)
  19                 return IB_MTU_256;
  20         else if (mtu < 1024)
  21                 return IB_MTU_512;
  22         else if (mtu < 2048)
  23                 return IB_MTU_1024;
  24         else if (mtu < 4096)
  25                 return IB_MTU_2048;
  26         else
  27                 return IB_MTU_4096;
  28 }
  29
  30 /* Find the IB mtu for a given network MTU. */
  31 static inline enum ib_mtu eth_mtu_int_to_enum(int mtu)
  32 {
  33         mtu -= RXE_MAX_HDR_LENGTH;
  34
  35         return rxe_mtu_int_to_enum(mtu);
  36 }
  37
  38 /* default/initial rxe device parameter settings */
  39 enum rxe_device_param {
  40         RXE_MAX_MR_SIZE                 = -1ull,
  41         RXE_PAGE_SIZE_CAP               = 0xfffff000,
  42         RXE_MAX_QP_WR                   = DEFAULT_MAX_VALUE,
  43         RXE_DEVICE_CAP_FLAGS            = IB_DEVICE_BAD_PKEY_CNTR
  44                                         | IB_DEVICE_BAD_QKEY_CNTR
  45                                         | IB_DEVICE_AUTO_PATH_MIG
  46                                         | IB_DEVICE_CHANGE_PHY_PORT
  47                                         | IB_DEVICE_UD_AV_PORT_ENFORCE
  48                                         | IB_DEVICE_PORT_ACTIVE_EVENT
  49                                         | IB_DEVICE_SYS_IMAGE_GUID
  50                                         | IB_DEVICE_RC_RNR_NAK_GEN
  51                                         | IB_DEVICE_SRQ_RESIZE
  52                                         | IB_DEVICE_MEM_MGT_EXTENSIONS
  53                                         | IB_DEVICE_MEM_WINDOW
  54                                         | IB_DEVICE_FLUSH_GLOBAL
  55                                         | IB_DEVICE_FLUSH_PERSISTENT
  56 #ifdef CONFIG_64BIT
  57                                         | IB_DEVICE_MEM_WINDOW_TYPE_2B
  58                                         | IB_DEVICE_ATOMIC_WRITE,
  59 #else
  60                                         | IB_DEVICE_MEM_WINDOW_TYPE_2B,
  61 #endif /* CONFIG_64BIT */
  62         RXE_MAX_SGE                     = 32,
  63         RXE_MAX_WQE_SIZE                = sizeof(struct rxe_send_wqe) +
  64                                           sizeof(struct ib_sge) * RXE_MAX_SGE,
  65         RXE_MAX_INLINE_DATA             = RXE_MAX_WQE_SIZE -
  66                                           sizeof(struct rxe_send_wqe),
  67         RXE_MAX_SGE_RD                  = 32,
  68         RXE_MAX_CQ                      = DEFAULT_MAX_VALUE,
  69         RXE_MAX_LOG_CQE                 = 15,
  70         RXE_MAX_PD                      = DEFAULT_MAX_VALUE,
  71         RXE_MAX_QP_RD_ATOM              = 128,
  72         RXE_MAX_RES_RD_ATOM             = 0x3f000,
  73         RXE_MAX_QP_INIT_RD_ATOM         = 128,
  74         RXE_MAX_MCAST_GRP               = 8192,
  75         RXE_MAX_MCAST_QP_ATTACH         = 56,
  76         RXE_MAX_TOT_MCAST_QP_ATTACH     = 0x70000,
  77         RXE_MAX_AH                      = (1<<15) - 1,  /* 32Ki - 1 */
  78         RXE_MIN_AH_INDEX                = 1,
  79         RXE_MAX_AH_INDEX                = RXE_MAX_AH,
  80         RXE_MAX_SRQ_WR                  = DEFAULT_MAX_VALUE,
  81         RXE_MIN_SRQ_WR                  = 1,
  82         RXE_MAX_SRQ_SGE                 = 27,
  83         RXE_MIN_SRQ_SGE                 = 1,
  84         RXE_MAX_FMR_PAGE_LIST_LEN       = 512,
  85         RXE_MAX_PKEYS                   = 64,
  86         RXE_LOCAL_CA_ACK_DELAY          = 15,
  87
  88         RXE_MAX_UCONTEXT                = DEFAULT_MAX_VALUE,
  89
  90         RXE_NUM_PORT                    = 1,
  91
  92         RXE_MIN_QP_INDEX                = 16,
  93         RXE_MAX_QP_INDEX                = DEFAULT_MAX_VALUE,
  94         RXE_MAX_QP                      = DEFAULT_MAX_VALUE - RXE_MIN_QP_INDEX,
  95
  96         RXE_MIN_SRQ_INDEX               = 0x00020001,
  97         RXE_MAX_SRQ_INDEX               = DEFAULT_MAX_VALUE,
  98         RXE_MAX_SRQ                     = DEFAULT_MAX_VALUE - RXE_MIN_SRQ_INDEX,
  99
 100         RXE_MIN_MR_INDEX                = 0x00000001,
 101         RXE_MAX_MR_INDEX                = DEFAULT_MAX_VALUE >> 1,
 102         RXE_MAX_MR                      = RXE_MAX_MR_INDEX - RXE_MIN_MR_INDEX,
 103         RXE_MIN_MW_INDEX                = RXE_MAX_MR_INDEX + 1,
 104         RXE_MAX_MW_INDEX                = DEFAULT_MAX_VALUE,
 105         RXE_MAX_MW                      = RXE_MAX_MW_INDEX - RXE_MIN_MW_INDEX,
 106
 107         RXE_MAX_PKT_PER_ACK             = 64,
 108
 109         RXE_MAX_UNACKED_PSNS            = 128,
 110
 111         /* Max inflight SKBs per queue pair */
 112         RXE_INFLIGHT_SKBS_PER_QP_HIGH   = 64,
 113         RXE_INFLIGHT_SKBS_PER_QP_LOW    = 16,
 114
 115         /* Max number of interations of each work item
 116          * before yielding the cpu to let other
 117          * work make progress
 118          */
 119         RXE_MAX_ITERATIONS              = 1024,
 120
 121         /* Delay before calling arbiter timer */
 122         RXE_NSEC_ARB_TIMER_DELAY        = 200,
 123
 124         /* IBTA v1.4 A3.3.1 VENDOR INFORMATION section */
 125         RXE_VENDOR_ID                   = 0XFFFFFF,
 126 };
 127
 128 /* default/initial rxe port parameters */
 129 enum rxe_port_param {
 130         RXE_PORT_GID_TBL_LEN            = 1024,
 131         RXE_PORT_PORT_CAP_FLAGS         = IB_PORT_CM_SUP,
 132         RXE_PORT_MAX_MSG_SZ             = 0x800000,
 133         RXE_PORT_BAD_PKEY_CNTR          = 0,
 134         RXE_PORT_QKEY_VIOL_CNTR         = 0,
 135         RXE_PORT_LID                    = 0,
 136         RXE_PORT_SM_LID                 = 0,
 137         RXE_PORT_SM_SL                  = 0,
 138         RXE_PORT_LMC                    = 0,
 139         RXE_PORT_MAX_VL_NUM             = 1,
 140         RXE_PORT_SUBNET_TIMEOUT         = 0,
 141         RXE_PORT_INIT_TYPE_REPLY        = 0,
 142         RXE_PORT_ACTIVE_WIDTH           = IB_WIDTH_1X,
 143         RXE_PORT_ACTIVE_SPEED           = 1,
 144         RXE_PORT_PKEY_TBL_LEN           = 1,
 145         RXE_PORT_PHYS_STATE             = IB_PORT_PHYS_STATE_POLLING,
 146         RXE_PORT_SUBNET_PREFIX          = 0xfe80000000000000ULL,
 147 };
 148
 149 /* default/initial port info parameters */
 150 enum rxe_port_info_param {
 151         RXE_PORT_INFO_VL_CAP            = 4,    /* 1-8 */
 152         RXE_PORT_INFO_MTU_CAP           = 5,    /* 4096 */
 153         RXE_PORT_INFO_OPER_VL           = 1,    /* 1 */
 154 };
 155
 156 #endif /* RXE_PARAM_H */