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
42 union rxe_gid {
43 __u8 raw[16];
44 struct {
45 __be64 subnet_prefix;
46 __be64 interface_id;
47 } global;
48 };
49
50 struct 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
58 struct rxe_av {
59 __u8 port_num;
60 __u8 network_type;
61 __u8 dmac[6];
62 struct rxe_global_route grh;
63 union {
64 struct sockaddr_in _sockaddr_in;
65 struct sockaddr_in6 _sockaddr_in6;
66 } sgid_addr, dgid_addr;
67 };
68
69 struct rxe_send_wr {
70 __aligned_u64 wr_id;
71 __u32 num_sge;
72 __u32 opcode;
73 __u32 send_flags;
74 union {
75 __be32 imm_data;
76 __u32 invalidate_rkey;
77 } ex;
78 union {
79 struct {
80 __aligned_u64 remote_addr;
81 __u32 rkey;
82 __u32 reserved;
83 } rdma;
84 struct {
85 __aligned_u64 remote_addr;
86 __aligned_u64 compare_add;
87 __aligned_u64 swap;
88 __u32 rkey;
89 __u32 reserved;
90 } atomic;
91 struct {
92 __u32 remote_qpn;
93 __u32 remote_qkey;
94 __u16 pkey_index;
95 } ud;
96 /* reg is only used by the kernel and is not part of the uapi */
97 struct {
98 union {
99 struct ib_mr *mr;
100 __aligned_u64 reserved;
101 };
102 __u32 key;
103 __u32 access;
104 } reg;
105 } wr;
106 };
107
108 struct rxe_sge {
109 __aligned_u64 addr;
110 __u32 length;
111 __u32 lkey;
112 };
113
114 struct mminfo {
115 __aligned_u64 offset;
116 __u32 size;
117 __u32 pad;
118 };
119
120 struct rxe_dma_info {
121 __u32 length;
122 __u32 resid;
123 __u32 cur_sge;
124 __u32 num_sge;
125 __u32 sge_offset;
126 __u32 reserved;
127 union {
128 __u8 inline_data[0];
129 struct rxe_sge sge[0];
130 };
131 };
132
133 struct rxe_send_wqe {
134 struct rxe_send_wr wr;
135 struct rxe_av av;
136 __u32 status;
137 __u32 state;
138 __aligned_u64 iova;
139 __u32 mask;
140 __u32 first_psn;
141 __u32 last_psn;
142 __u32 ack_length;
143 __u32 ssn;
144 __u32 has_rd_atomic;
145 struct rxe_dma_info dma;
146 };
147
148 struct rxe_recv_wqe {
149 __aligned_u64 wr_id;
150 __u32 num_sge;
151 __u32 padding;
152 struct rxe_dma_info dma;
153 };
154
155 struct rxe_create_cq_resp {
156 struct mminfo mi;
157 };
158
159 struct rxe_resize_cq_resp {
160 struct mminfo mi;
161 };
162
163 struct rxe_create_qp_resp {
164 struct mminfo rq_mi;
165 struct mminfo sq_mi;
166 };
167
168 struct rxe_create_srq_resp {
169 struct mminfo mi;
170 __u32 srq_num;
171 __u32 reserved;
172 };
173
174 struct rxe_modify_srq_cmd {
175 __aligned_u64 mmap_info_addr;
176 };
177
178 #endif /* RDMA_USER_RXE_H */