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review.shift-gmbh.com / SHIFTPHONES / mainline / linux / 705d84a366cfccda1e7aec1113a5399cd2ffee7d / . / include / rdma / tid_rdma_defs.h
blob: 08fe47c7ad2c4c2f076ced418dab6084f1f9ae32 [file] [log] [blame]
Kaike Wan742a3822019-01-23 19:30:40 -0800[diff] [blame]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
Kaike Wanc098bbb2019-01-23 21:48:28 -0800[diff] [blame]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
Kaike Wan742a3822019-01-23 19:30:40 -0800[diff] [blame]73/*
74 * TID RDMA Opcodes
75 */
76#define IB_OPCODE_TID_RDMA 0xe0
77enum {
Kaike Wanc098bbb2019-01-23 21:48:28 -0800[diff] [blame]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,
Kaike Wan742a3822019-01-23 19:30:40 -0800[diff] [blame]82 IB_OPCODE_READ_REQ = 0x4,
83 IB_OPCODE_READ_RESP = 0x5,
Kaike Wanc098bbb2019-01-23 21:48:28 -0800[diff] [blame]84 IB_OPCODE_RESYNC = 0x6,
85 IB_OPCODE_ACK = 0x7,
Kaike Wan742a3822019-01-23 19:30:40 -0800[diff] [blame]86
Kaike Wanc098bbb2019-01-23 21:48:28 -0800[diff] [blame]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),
Kaike Wan742a3822019-01-23 19:30:40 -0800[diff] [blame]91 IB_OPCODE(TID_RDMA, READ_REQ),
92 IB_OPCODE(TID_RDMA, READ_RESP),
Kaike Wanc098bbb2019-01-23 21:48:28 -0800[diff] [blame]93 IB_OPCODE(TID_RDMA, RESYNC),
94 IB_OPCODE(TID_RDMA, ACK),
Kaike Wan742a3822019-01-23 19:30:40 -0800[diff] [blame]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 */
Kaike Wanc098bbb2019-01-23 21:48:28 -0800[diff] [blame]105#define IB_WR_TID_RDMA_WRITE IB_WR_RESERVED1
Kaike Wan742a3822019-01-23 19:30:40 -0800[diff] [blame]106#define IB_WR_TID_RDMA_READ IB_WR_RESERVED2
107
108#endif /* TID_RDMA_DEFS_H */