1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2/* Copyright (C) 2018-2025, Advanced Micro Devices, Inc */
3
4#ifndef IONIC_ABI_H
5#define IONIC_ABI_H
6
7#include <linux/types.h>
8
9#define IONIC_ABI_VERSION 1
10
11#define IONIC_EXPDB_64 1
12#define IONIC_EXPDB_128 2
13#define IONIC_EXPDB_256 4
14#define IONIC_EXPDB_512 8
15
16#define IONIC_EXPDB_SQ 1
17#define IONIC_EXPDB_RQ 2
18
19#define IONIC_CMB_ENABLE 1
20#define IONIC_CMB_REQUIRE 2
21#define IONIC_CMB_EXPDB 4
22#define IONIC_CMB_WC 8
23#define IONIC_CMB_UC 16
24
25struct ionic_ctx_req {
26 __u32 rsvd[2];
27};
28
29struct ionic_ctx_resp {
30 __u32 rsvd;
31 __u32 page_shift;
32
33 __aligned_u64 dbell_offset;
34
35 __u16 version;
36 __u8 qp_opcodes;
37 __u8 admin_opcodes;
38
39 __u8 sq_qtype;
40 __u8 rq_qtype;
41 __u8 cq_qtype;
42 __u8 admin_qtype;
43
44 __u8 max_stride;
45 __u8 max_spec;
46 __u8 udma_count;
47 __u8 expdb_mask;
48 __u8 expdb_qtypes;
49
50 __u8 rsvd2[3];
51};
52
53struct ionic_qdesc {
54 __aligned_u64 addr;
55 __u32 size;
56 __u16 mask;
57 __u8 depth_log2;
58 __u8 stride_log2;
59};
60
61struct ionic_ah_resp {
62 __u32 ahid;
63 __u32 pad;
64};
65
66struct ionic_cq_req {
67 struct ionic_qdesc cq[2];
68 __u8 udma_mask;
69 __u8 rsvd[7];
70};
71
72struct ionic_cq_resp {
73 __u32 cqid[2];
74 __u8 udma_mask;
75 __u8 rsvd[7];
76};
77
78struct ionic_qp_req {
79 struct ionic_qdesc sq;
80 struct ionic_qdesc rq;
81 __u8 sq_spec;
82 __u8 rq_spec;
83 __u8 sq_cmb;
84 __u8 rq_cmb;
85 __u8 udma_mask;
86 __u8 rsvd[3];
87};
88
89struct ionic_qp_resp {
90 __u32 qpid;
91 __u8 sq_cmb;
92 __u8 rq_cmb;
93 __u8 udma_idx;
94 __u8 rsvd[1];
95 __aligned_u64 sq_cmb_offset;
96 __aligned_u64 rq_cmb_offset;
97};
98
99struct ionic_srq_req {
100 struct ionic_qdesc rq;
101 __u8 rq_spec;
102 __u8 rq_cmb;
103 __u8 udma_mask;
104 __u8 rsvd[5];
105};
106
107struct ionic_srq_resp {
108 __u32 qpid;
109 __u8 rq_cmb;
110 __u8 udma_idx;
111 __u8 rsvd[2];
112 __aligned_u64 rq_cmb_offset;
113};
114
115#endif /* IONIC_ABI_H */
116

source code of linux/include/uapi/rdma/ionic-abi.h