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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
2/*
3 * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
4 *
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenIB.org BSD license below:
10 *
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
13 * conditions are met:
14 *
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 * SOFTWARE.
32 */
33
34#ifndef RDMA_USER_RXE_H
35#define RDMA_USER_RXE_H
36
37#include <linux/types.h>
38#include <linux/socket.h>
39#include <linux/in.h>
40#include <linux/in6.h>
41
42union rxe_gid {
43 __u8 raw[16];
44 struct {
45 __be64 subnet_prefix;
46 __be64 interface_id;
47 } global;
48};
49
50struct rxe_global_route {
51 union rxe_gid dgid;
52 __u32 flow_label;
53 __u8 sgid_index;
54 __u8 hop_limit;
55 __u8 traffic_class;
56};
57
58struct rxe_av {
59 __u8 port_num;
60 __u8 network_type;
61 __u16 reserved1;
62 __u32 reserved2;
63 struct rxe_global_route grh;
64 union {
65 struct sockaddr_in _sockaddr_in;
66 struct sockaddr_in6 _sockaddr_in6;
67 } sgid_addr, dgid_addr;
68};
69
70struct rxe_send_wr {
71 __aligned_u64 wr_id;
72 __u32 num_sge;
73 __u32 opcode;
74 __u32 send_flags;
75 union {
76 __be32 imm_data;
77 __u32 invalidate_rkey;
78 } ex;
79 union {
80 struct {
81 __aligned_u64 remote_addr;
82 __u32 rkey;
83 __u32 reserved;
84 } rdma;
85 struct {
86 __aligned_u64 remote_addr;
87 __aligned_u64 compare_add;
88 __aligned_u64 swap;
89 __u32 rkey;
90 __u32 reserved;
91 } atomic;
92 struct {
93 __u32 remote_qpn;
94 __u32 remote_qkey;
95 __u16 pkey_index;
96 } ud;
97 /* reg is only used by the kernel and is not part of the uapi */
98 struct {
99 union {
100 struct ib_mr *mr;
101 __aligned_u64 reserved;
102 };
103 __u32 key;
104 __u32 access;
105 } reg;
106 } wr;
107};
108
109struct rxe_sge {
110 __aligned_u64 addr;
111 __u32 length;
112 __u32 lkey;
113};
114
115struct mminfo {
116 __aligned_u64 offset;
117 __u32 size;
118 __u32 pad;
119};
120
121struct rxe_dma_info {
122 __u32 length;
123 __u32 resid;
124 __u32 cur_sge;
125 __u32 num_sge;
126 __u32 sge_offset;
127 __u32 reserved;
128 union {
129 __u8 inline_data[0];
130 struct rxe_sge sge[0];
131 };
132};
133
134struct rxe_send_wqe {
135 struct rxe_send_wr wr;
136 struct rxe_av av;
137 __u32 status;
138 __u32 state;
139 __aligned_u64 iova;
140 __u32 mask;
141 __u32 first_psn;
142 __u32 last_psn;
143 __u32 ack_length;
144 __u32 ssn;
145 __u32 has_rd_atomic;
146 struct rxe_dma_info dma;
147};
148
149struct rxe_recv_wqe {
150 __aligned_u64 wr_id;
151 __u32 num_sge;
152 __u32 padding;
153 struct rxe_dma_info dma;
154};
155
156struct rxe_create_cq_resp {
157 struct mminfo mi;
158};
159
160struct rxe_resize_cq_resp {
161 struct mminfo mi;
162};
163
164struct rxe_create_qp_resp {
165 struct mminfo rq_mi;
166 struct mminfo sq_mi;
167};
168
169struct rxe_create_srq_resp {
170 struct mminfo mi;
171 __u32 srq_num;
172 __u32 reserved;
173};
174
175struct rxe_modify_srq_cmd {
176 __aligned_u64 mmap_info_addr;
177};
178
179#endif /* RDMA_USER_RXE_H */