1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
2 /* This file is part of the Emulex RoCE Device Driver for
3  * RoCE (RDMA over Converged Ethernet) adapters.
4  * Copyright (C) 2012-2015 Emulex. All rights reserved.
5  * EMULEX and SLI are trademarks of Emulex.
6  * www.emulex.com
7  *
8  * This software is available to you under a choice of one of two licenses.
9  * You may choose to be licensed under the terms of the GNU General Public
10  * License (GPL) Version 2, available from the file COPYING in the main
11  * directory of this source tree, or the BSD license below:
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions
15  * are met:
16  *
17  * - Redistributions of source code must retain the above copyright notice,
18  *   this list of conditions and the following disclaimer.
19  *
20  * - 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 distribution.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
28  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
31  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
32  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
33  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
34  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35  *
36  * Contact Information:
37  * linux-drivers@emulex.com
38  *
39  * Emulex
40  * 3333 Susan Street
41  * Costa Mesa, CA 92626
42  */
43 
44 #ifndef OCRDMA_ABI_USER_H
45 #define OCRDMA_ABI_USER_H
46 
47 #include <linux/types.h>
48 
49 #define OCRDMA_ABI_VERSION 2
50 #define OCRDMA_BE_ROCE_ABI_VERSION 1
51 /* user kernel communication data structures. */
52 
53 struct ocrdma_alloc_ucontext_resp {
54 	__u32 dev_id;
55 	__u32 wqe_size;
56 	__u32 max_inline_data;
57 	__u32 dpp_wqe_size;
58 	__aligned_u64 ah_tbl_page;
59 	__u32 ah_tbl_len;
60 	__u32 rqe_size;
61 	__u8 fw_ver[32];
62 	/* for future use/new features in progress */
63 	__aligned_u64 rsvd1;
64 	__aligned_u64 rsvd2;
65 };
66 
67 struct ocrdma_alloc_pd_ureq {
68 	__u32 rsvd[2];
69 };
70 
71 struct ocrdma_alloc_pd_uresp {
72 	__u32 id;
73 	__u32 dpp_enabled;
74 	__u32 dpp_page_addr_hi;
75 	__u32 dpp_page_addr_lo;
76 	__u32 rsvd[2];
77 };
78 
79 struct ocrdma_create_cq_ureq {
80 	__u32 dpp_cq;
81 	__u32 rsvd; /* pad */
82 };
83 
84 #define MAX_CQ_PAGES 8
85 struct ocrdma_create_cq_uresp {
86 	__u32 cq_id;
87 	__u32 page_size;
88 	__u32 num_pages;
89 	__u32 max_hw_cqe;
90 	__aligned_u64 page_addr[MAX_CQ_PAGES];
91 	__aligned_u64 db_page_addr;
92 	__u32 db_page_size;
93 	__u32 phase_change;
94 	/* for future use/new features in progress */
95 	__aligned_u64 rsvd1;
96 	__aligned_u64 rsvd2;
97 };
98 
99 #define MAX_QP_PAGES 8
100 #define MAX_UD_AV_PAGES 8
101 
102 struct ocrdma_create_qp_ureq {
103 	__u8 enable_dpp_cq;
104 	__u8 rsvd;
105 	__u16 dpp_cq_id;
106 	__u32 rsvd1;	/* pad */
107 };
108 
109 struct ocrdma_create_qp_uresp {
110 	__u16 qp_id;
111 	__u16 sq_dbid;
112 	__u16 rq_dbid;
113 	__u16 resv0;	/* pad */
114 	__u32 sq_page_size;
115 	__u32 rq_page_size;
116 	__u32 num_sq_pages;
117 	__u32 num_rq_pages;
118 	__aligned_u64 sq_page_addr[MAX_QP_PAGES];
119 	__aligned_u64 rq_page_addr[MAX_QP_PAGES];
120 	__aligned_u64 db_page_addr;
121 	__u32 db_page_size;
122 	__u32 dpp_credit;
123 	__u32 dpp_offset;
124 	__u32 num_wqe_allocated;
125 	__u32 num_rqe_allocated;
126 	__u32 db_sq_offset;
127 	__u32 db_rq_offset;
128 	__u32 db_shift;
129 	__aligned_u64 rsvd[11];
130 };
131 
132 struct ocrdma_create_srq_uresp {
133 	__u16 rq_dbid;
134 	__u16 resv0;	/* pad */
135 	__u32 resv1;
136 
137 	__u32 rq_page_size;
138 	__u32 num_rq_pages;
139 
140 	__aligned_u64 rq_page_addr[MAX_QP_PAGES];
141 	__aligned_u64 db_page_addr;
142 
143 	__u32 db_page_size;
144 	__u32 num_rqe_allocated;
145 	__u32 db_rq_offset;
146 	__u32 db_shift;
147 
148 	__aligned_u64 rsvd2;
149 	__aligned_u64 rsvd3;
150 };
151 
152 #endif	/* OCRDMA_ABI_USER_H */
153