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 */