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
rxe_mtu_int_to_enum(int mtu)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. */
eth_mtu_int_to_enum(int 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 */
157