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