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 
45 #define BNXT_RE_ABI_VERSION	1
46 
47 struct bnxt_re_uctx_resp {
48 	__u32 dev_id;
49 	__u32 max_qp;
50 	__u32 pg_size;
51 	__u32 cqe_sz;
52 	__u32 max_cqd;
53 	__u32 rsvd;
54 };
55 
56 /*
57  * This struct is placed after the ib_uverbs_alloc_pd_resp struct, which is
58  * not 8 byted aligned. To avoid undesired padding in various cases we have to
59  * set this struct to packed.
60  */
61 struct bnxt_re_pd_resp {
62 	__u32 pdid;
63 	__u32 dpi;
64 	__u64 dbr;
65 } __attribute__((packed, aligned(4)));
66 
67 struct bnxt_re_cq_req {
68 	__aligned_u64 cq_va;
69 	__aligned_u64 cq_handle;
70 };
71 
72 struct bnxt_re_cq_resp {
73 	__u32 cqid;
74 	__u32 tail;
75 	__u32 phase;
76 	__u32 rsvd;
77 };
78 
79 struct bnxt_re_qp_req {
80 	__aligned_u64 qpsva;
81 	__aligned_u64 qprva;
82 	__aligned_u64 qp_handle;
83 };
84 
85 struct bnxt_re_qp_resp {
86 	__u32 qpid;
87 	__u32 rsvd;
88 };
89 
90 struct bnxt_re_srq_req {
91 	__aligned_u64 srqva;
92 	__aligned_u64 srq_handle;
93 };
94 
95 struct bnxt_re_srq_resp {
96 	__u32 srqid;
97 };
98 
99 enum bnxt_re_shpg_offt {
100 	BNXT_RE_BEG_RESV_OFFT	= 0x00,
101 	BNXT_RE_AVID_OFFT	= 0x10,
102 	BNXT_RE_AVID_SIZE	= 0x04,
103 	BNXT_RE_END_RESV_OFFT	= 0xFF0
104 };
105 
106 #endif /* __BNXT_RE_UVERBS_ABI_H__*/
107