1/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
2/*
3 * Copyright(c) 2018 Intel Corporation.
4 *
5 */
6
7#ifndef TID_RDMA_DEFS_H
8#define TID_RDMA_DEFS_H
9
10#include <rdma/ib_pack.h>
11
12struct tid_rdma_read_req {
13	__le32 kdeth0;
14	__le32 kdeth1;
15	struct ib_reth reth;
16	__be32 tid_flow_psn;
17	__be32 tid_flow_qp;
18	__be32 verbs_qp;
19};
20
21struct tid_rdma_read_resp {
22	__le32 kdeth0;
23	__le32 kdeth1;
24	__be32 aeth;
25	__be32 reserved[4];
26	__be32 verbs_psn;
27	__be32 verbs_qp;
28};
29
30struct tid_rdma_write_req {
31	__le32 kdeth0;
32	__le32 kdeth1;
33	struct ib_reth reth;
34	__be32 reserved[2];
35	__be32 verbs_qp;
36};
37
38struct tid_rdma_write_resp {
39	__le32 kdeth0;
40	__le32 kdeth1;
41	__be32 aeth;
42	__be32 reserved[3];
43	__be32 tid_flow_psn;
44	__be32 tid_flow_qp;
45	__be32 verbs_qp;
46};
47
48struct tid_rdma_write_data {
49	__le32 kdeth0;
50	__le32 kdeth1;
51	__be32 reserved[6];
52	__be32 verbs_qp;
53};
54
55struct tid_rdma_resync {
56	__le32 kdeth0;
57	__le32 kdeth1;
58	__be32 reserved[6];
59	__be32 verbs_qp;
60};
61
62struct tid_rdma_ack {
63	__le32 kdeth0;
64	__le32 kdeth1;
65	__be32 aeth;
66	__be32 reserved[2];
67	__be32 tid_flow_psn;
68	__be32 verbs_psn;
69	__be32 tid_flow_qp;
70	__be32 verbs_qp;
71};
72
73/*
74 * TID RDMA Opcodes
75 */
76#define IB_OPCODE_TID_RDMA 0xe0
77enum {
78	IB_OPCODE_WRITE_REQ       = 0x0,
79	IB_OPCODE_WRITE_RESP      = 0x1,
80	IB_OPCODE_WRITE_DATA      = 0x2,
81	IB_OPCODE_WRITE_DATA_LAST = 0x3,
82	IB_OPCODE_READ_REQ        = 0x4,
83	IB_OPCODE_READ_RESP       = 0x5,
84	IB_OPCODE_RESYNC          = 0x6,
85	IB_OPCODE_ACK             = 0x7,
86
87	IB_OPCODE(TID_RDMA, WRITE_REQ),
88	IB_OPCODE(TID_RDMA, WRITE_RESP),
89	IB_OPCODE(TID_RDMA, WRITE_DATA),
90	IB_OPCODE(TID_RDMA, WRITE_DATA_LAST),
91	IB_OPCODE(TID_RDMA, READ_REQ),
92	IB_OPCODE(TID_RDMA, READ_RESP),
93	IB_OPCODE(TID_RDMA, RESYNC),
94	IB_OPCODE(TID_RDMA, ACK),
95};
96
97#define TID_OP(x) IB_OPCODE_TID_RDMA_##x
98
99/*
100 * Define TID RDMA specific WR opcodes. The ib_wr_opcode
101 * enum already provides some reserved values for use by
102 * low level drivers. Two of those are used but renamed
103 * to be more descriptive.
104 */
105#define IB_WR_TID_RDMA_WRITE IB_WR_RESERVED1
106#define IB_WR_TID_RDMA_READ  IB_WR_RESERVED2
107
108#endif /* TID_RDMA_DEFS_H */
109