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 tasklet 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 */ 157