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
12 struct 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
21 struct 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
30 struct 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
38 struct 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
48 struct tid_rdma_write_data {
49 __le32 kdeth0;
50 __le32 kdeth1;
51 __be32 reserved[6];
52 __be32 verbs_qp;
53 };
54
55 struct tid_rdma_resync {
56 __le32 kdeth0;
57 __le32 kdeth1;
58 __be32 reserved[6];
59 __be32 verbs_qp;
60 };
61
62 struct 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
77 enum {
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
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.