1/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
2/*
3 * Broadcom NetXtreme-E RoCE driver.
4 *
5 * Copyright (c) 2016 - 2017, Broadcom. All rights reserved.  The term
6 * Broadcom refers to Broadcom Limited and/or its subsidiaries.
7 *
8 * This software is available to you under a choice of one of two
9 * licenses.  You may choose to be licensed under the terms of the GNU
10 * General Public License (GPL) Version 2, available from the file
11 * COPYING in the main directory of this source tree, or the
12 * BSD license below:
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 *
18 * 1. Redistributions of source code must retain the above copyright
19 *    notice, this list of conditions and the following disclaimer.
20 * 2. Redistributions in binary form must reproduce the above copyright
21 *    notice, this list of conditions and the following disclaimer in
22 *    the documentation and/or other materials provided with the
23 *    distribution.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
27 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
32 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
33 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
34 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
35 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 *
37 * Description: Uverbs ABI header file
38 */
39
40#ifndef __BNXT_RE_UVERBS_ABI_H__
41#define __BNXT_RE_UVERBS_ABI_H__
42
43#include <linux/types.h>
44#include <rdma/ib_user_ioctl_cmds.h>
45
46#define BNXT_RE_ABI_VERSION	1
47
48#define BNXT_RE_CHIP_ID0_CHIP_NUM_SFT		0x00
49#define BNXT_RE_CHIP_ID0_CHIP_REV_SFT		0x10
50#define BNXT_RE_CHIP_ID0_CHIP_MET_SFT		0x18
51
52enum {
53	BNXT_RE_UCNTX_CMASK_HAVE_CCTX = 0x1ULL,
54	BNXT_RE_UCNTX_CMASK_HAVE_MODE = 0x02ULL,
55	BNXT_RE_UCNTX_CMASK_WC_DPI_ENABLED = 0x04ULL,
56	BNXT_RE_UCNTX_CMASK_DBR_PACING_ENABLED = 0x08ULL,
57};
58
59enum bnxt_re_wqe_mode {
60	BNXT_QPLIB_WQE_MODE_STATIC	= 0x00,
61	BNXT_QPLIB_WQE_MODE_VARIABLE	= 0x01,
62	BNXT_QPLIB_WQE_MODE_INVALID	= 0x02,
63};
64
65struct bnxt_re_uctx_resp {
66	__u32 dev_id;
67	__u32 max_qp;
68	__u32 pg_size;
69	__u32 cqe_sz;
70	__u32 max_cqd;
71	__u32 rsvd;
72	__aligned_u64 comp_mask;
73	__u32 chip_id0;
74	__u32 chip_id1;
75	__u32 mode;
76	__u32 rsvd1; /* padding */
77};
78
79/*
80 * This struct is placed after the ib_uverbs_alloc_pd_resp struct, which is
81 * not 8 byted aligned. To avoid undesired padding in various cases we have to
82 * set this struct to packed.
83 */
84struct bnxt_re_pd_resp {
85	__u32 pdid;
86	__u32 dpi;
87	__u64 dbr;
88} __attribute__((packed, aligned(4)));
89
90struct bnxt_re_cq_req {
91	__aligned_u64 cq_va;
92	__aligned_u64 cq_handle;
93};
94
95struct bnxt_re_cq_resp {
96	__u32 cqid;
97	__u32 tail;
98	__u32 phase;
99	__u32 rsvd;
100};
101
102struct bnxt_re_resize_cq_req {
103	__aligned_u64 cq_va;
104};
105
106struct bnxt_re_qp_req {
107	__aligned_u64 qpsva;
108	__aligned_u64 qprva;
109	__aligned_u64 qp_handle;
110};
111
112struct bnxt_re_qp_resp {
113	__u32 qpid;
114	__u32 rsvd;
115};
116
117struct bnxt_re_srq_req {
118	__aligned_u64 srqva;
119	__aligned_u64 srq_handle;
120};
121
122struct bnxt_re_srq_resp {
123	__u32 srqid;
124};
125
126enum bnxt_re_shpg_offt {
127	BNXT_RE_BEG_RESV_OFFT	= 0x00,
128	BNXT_RE_AVID_OFFT	= 0x10,
129	BNXT_RE_AVID_SIZE	= 0x04,
130	BNXT_RE_END_RESV_OFFT	= 0xFF0
131};
132
133enum bnxt_re_objects {
134	BNXT_RE_OBJECT_ALLOC_PAGE = (1U << UVERBS_ID_NS_SHIFT),
135	BNXT_RE_OBJECT_NOTIFY_DRV,
136};
137
138enum bnxt_re_alloc_page_type {
139	BNXT_RE_ALLOC_WC_PAGE = 0,
140	BNXT_RE_ALLOC_DBR_BAR_PAGE,
141	BNXT_RE_ALLOC_DBR_PAGE,
142};
143
144enum bnxt_re_var_alloc_page_attrs {
145	BNXT_RE_ALLOC_PAGE_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
146	BNXT_RE_ALLOC_PAGE_TYPE,
147	BNXT_RE_ALLOC_PAGE_DPI,
148	BNXT_RE_ALLOC_PAGE_MMAP_OFFSET,
149	BNXT_RE_ALLOC_PAGE_MMAP_LENGTH,
150};
151
152enum bnxt_re_alloc_page_attrs {
153	BNXT_RE_DESTROY_PAGE_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
154};
155
156enum bnxt_re_alloc_page_methods {
157	BNXT_RE_METHOD_ALLOC_PAGE = (1U << UVERBS_ID_NS_SHIFT),
158	BNXT_RE_METHOD_DESTROY_PAGE,
159};
160
161enum bnxt_re_notify_drv_methods {
162	BNXT_RE_METHOD_NOTIFY_DRV = (1U << UVERBS_ID_NS_SHIFT),
163};
164#endif /* __BNXT_RE_UVERBS_ABI_H__*/
165