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
rxe_mtu_int_to_enum(int mtu)12 static inline enum ib_mtu rxe_mtu_int_to_enum(int mtu)
13 {
14 if (mtu < 256)
15 return 0;
16 else if (mtu < 512)
17 return IB_MTU_256;
18 else if (mtu < 1024)
19 return IB_MTU_512;
20 else if (mtu < 2048)
21 return IB_MTU_1024;
22 else if (mtu < 4096)
23 return IB_MTU_2048;
24 else
25 return IB_MTU_4096;
26 }
27
28 /* Find the IB mtu for a given network MTU. */
eth_mtu_int_to_enum(int mtu)29 static inline enum ib_mtu eth_mtu_int_to_enum(int mtu)
30 {
31 mtu -= RXE_MAX_HDR_LENGTH;
32
33 return rxe_mtu_int_to_enum(mtu);
34 }
35
36 /* default/initial rxe device parameter settings */
37 enum rxe_device_param {
38 RXE_MAX_MR_SIZE = -1ull,
39 RXE_PAGE_SIZE_CAP = 0xfffff000,
40 RXE_MAX_QP = 0x10000,
41 RXE_MAX_QP_WR = 0x4000,
42 RXE_DEVICE_CAP_FLAGS = IB_DEVICE_BAD_PKEY_CNTR
43 | IB_DEVICE_BAD_QKEY_CNTR
44 | IB_DEVICE_AUTO_PATH_MIG
45 | IB_DEVICE_CHANGE_PHY_PORT
46 | IB_DEVICE_UD_AV_PORT_ENFORCE
47 | IB_DEVICE_PORT_ACTIVE_EVENT
48 | IB_DEVICE_SYS_IMAGE_GUID
49 | IB_DEVICE_RC_RNR_NAK_GEN
50 | IB_DEVICE_SRQ_RESIZE
51 | IB_DEVICE_MEM_MGT_EXTENSIONS
52 | IB_DEVICE_ALLOW_USER_UNREG,
53 RXE_MAX_SGE = 32,
54 RXE_MAX_WQE_SIZE = sizeof(struct rxe_send_wqe) +
55 sizeof(struct ib_sge) * RXE_MAX_SGE,
56 RXE_MAX_INLINE_DATA = RXE_MAX_WQE_SIZE -
57 sizeof(struct rxe_send_wqe),
58 RXE_MAX_SGE_RD = 32,
59 RXE_MAX_CQ = 16384,
60 RXE_MAX_LOG_CQE = 15,
61 RXE_MAX_MR = 256 * 1024,
62 RXE_MAX_PD = 0x7ffc,
63 RXE_MAX_QP_RD_ATOM = 128,
64 RXE_MAX_RES_RD_ATOM = 0x3f000,
65 RXE_MAX_QP_INIT_RD_ATOM = 128,
66 RXE_MAX_MCAST_GRP = 8192,
67 RXE_MAX_MCAST_QP_ATTACH = 56,
68 RXE_MAX_TOT_MCAST_QP_ATTACH = 0x70000,
69 RXE_MAX_AH = 100,
70 RXE_MAX_SRQ = 960,
71 RXE_MAX_SRQ_WR = 0x4000,
72 RXE_MIN_SRQ_WR = 1,
73 RXE_MAX_SRQ_SGE = 27,
74 RXE_MIN_SRQ_SGE = 1,
75 RXE_MAX_FMR_PAGE_LIST_LEN = 512,
76 RXE_MAX_PKEYS = 1,
77 RXE_LOCAL_CA_ACK_DELAY = 15,
78
79 RXE_MAX_UCONTEXT = 512,
80
81 RXE_NUM_PORT = 1,
82
83 RXE_MIN_QP_INDEX = 16,
84 RXE_MAX_QP_INDEX = 0x00020000,
85
86 RXE_MIN_SRQ_INDEX = 0x00020001,
87 RXE_MAX_SRQ_INDEX = 0x00040000,
88
89 RXE_MIN_MR_INDEX = 0x00000001,
90 RXE_MAX_MR_INDEX = 0x00040000,
91 RXE_MIN_MW_INDEX = 0x00040001,
92 RXE_MAX_MW_INDEX = 0x00060000,
93 RXE_MAX_PKT_PER_ACK = 64,
94
95 RXE_MAX_UNACKED_PSNS = 128,
96
97 /* Max inflight SKBs per queue pair */
98 RXE_INFLIGHT_SKBS_PER_QP_HIGH = 64,
99 RXE_INFLIGHT_SKBS_PER_QP_LOW = 16,
100
101 /* Max number of interations of each tasklet
102 * before yielding the cpu to let other
103 * work make progress
104 */
105 RXE_MAX_ITERATIONS = 1024,
106
107 /* Delay before calling arbiter timer */
108 RXE_NSEC_ARB_TIMER_DELAY = 200,
109
110 /* IBTA v1.4 A3.3.1 VENDOR INFORMATION section */
111 RXE_VENDOR_ID = 0XFFFFFF,
112 };
113
114 /* default/initial rxe port parameters */
115 enum rxe_port_param {
116 RXE_PORT_GID_TBL_LEN = 1024,
117 RXE_PORT_PORT_CAP_FLAGS = IB_PORT_CM_SUP,
118 RXE_PORT_MAX_MSG_SZ = 0x800000,
119 RXE_PORT_BAD_PKEY_CNTR = 0,
120 RXE_PORT_QKEY_VIOL_CNTR = 0,
121 RXE_PORT_LID = 0,
122 RXE_PORT_SM_LID = 0,
123 RXE_PORT_SM_SL = 0,
124 RXE_PORT_LMC = 0,
125 RXE_PORT_MAX_VL_NUM = 1,
126 RXE_PORT_SUBNET_TIMEOUT = 0,
127 RXE_PORT_INIT_TYPE_REPLY = 0,
128 RXE_PORT_ACTIVE_WIDTH = IB_WIDTH_1X,
129 RXE_PORT_ACTIVE_SPEED = 1,
130 RXE_PORT_PKEY_TBL_LEN = 1,
131 RXE_PORT_PHYS_STATE = IB_PORT_PHYS_STATE_POLLING,
132 RXE_PORT_SUBNET_PREFIX = 0xfe80000000000000ULL,
133 };
134
135 /* default/initial port info parameters */
136 enum rxe_port_info_param {
137 RXE_PORT_INFO_VL_CAP = 4, /* 1-8 */
138 RXE_PORT_INFO_MTU_CAP = 5, /* 4096 */
139 RXE_PORT_INFO_OPER_VL = 1, /* 1 */
140 };
141
142 #endif /* RXE_PARAM_H */
143