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
 14static 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. */
 31static 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 */
 39enum 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 */
129enum 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 */
150enum 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 */