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 #define BNXT_RE_CHIP_ID0_CHIP_NUM_SFT		0x00
48 #define BNXT_RE_CHIP_ID0_CHIP_REV_SFT		0x10
49 #define BNXT_RE_CHIP_ID0_CHIP_MET_SFT		0x18
50 
51 enum {
52 	BNXT_RE_UCNTX_CMASK_HAVE_CCTX = 0x1ULL,
53 	BNXT_RE_UCNTX_CMASK_HAVE_MODE = 0x02ULL,
54 };
55 
56 enum bnxt_re_wqe_mode {
57 	BNXT_QPLIB_WQE_MODE_STATIC	= 0x00,
58 	BNXT_QPLIB_WQE_MODE_VARIABLE	= 0x01,
59 	BNXT_QPLIB_WQE_MODE_INVALID	= 0x02,
60 };
61 
62 struct bnxt_re_uctx_resp {
63 	__u32 dev_id;
64 	__u32 max_qp;
65 	__u32 pg_size;
66 	__u32 cqe_sz;
67 	__u32 max_cqd;
68 	__u32 rsvd;
69 	__aligned_u64 comp_mask;
70 	__u32 chip_id0;
71 	__u32 chip_id1;
72 	__u32 mode;
73 	__u32 rsvd1; /* padding */
74 };
75 
76 /*
77  * This struct is placed after the ib_uverbs_alloc_pd_resp struct, which is
78  * not 8 byted aligned. To avoid undesired padding in various cases we have to
79  * set this struct to packed.
80  */
81 struct bnxt_re_pd_resp {
82 	__u32 pdid;
83 	__u32 dpi;
84 	__u64 dbr;
85 } __attribute__((packed, aligned(4)));
86 
87 struct bnxt_re_cq_req {
88 	__aligned_u64 cq_va;
89 	__aligned_u64 cq_handle;
90 };
91 
92 struct bnxt_re_cq_resp {
93 	__u32 cqid;
94 	__u32 tail;
95 	__u32 phase;
96 	__u32 rsvd;
97 };
98 
99 struct bnxt_re_qp_req {
100 	__aligned_u64 qpsva;
101 	__aligned_u64 qprva;
102 	__aligned_u64 qp_handle;
103 };
104 
105 struct bnxt_re_qp_resp {
106 	__u32 qpid;
107 	__u32 rsvd;
108 };
109 
110 struct bnxt_re_srq_req {
111 	__aligned_u64 srqva;
112 	__aligned_u64 srq_handle;
113 };
114 
115 struct bnxt_re_srq_resp {
116 	__u32 srqid;
117 };
118 
119 enum bnxt_re_shpg_offt {
120 	BNXT_RE_BEG_RESV_OFFT	= 0x00,
121 	BNXT_RE_AVID_OFFT	= 0x10,
122 	BNXT_RE_AVID_SIZE	= 0x04,
123 	BNXT_RE_END_RESV_OFFT	= 0xFF0
124 };
125 
126 #endif /* __BNXT_RE_UVERBS_ABI_H__*/
127