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
12static 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. */
29static 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 */
37enum 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 */
115enum 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 */
136enum 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