1 /* 2 * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 33 #ifndef RDMA_USER_RXE_H 34 #define RDMA_USER_RXE_H 35 36 #include <linux/types.h> 37 38 union rxe_gid { 39 __u8 raw[16]; 40 struct { 41 __be64 subnet_prefix; 42 __be64 interface_id; 43 } global; 44 }; 45 46 struct rxe_global_route { 47 union rxe_gid dgid; 48 __u32 flow_label; 49 __u8 sgid_index; 50 __u8 hop_limit; 51 __u8 traffic_class; 52 }; 53 54 struct rxe_av { 55 __u8 port_num; 56 __u8 network_type; 57 struct rxe_global_route grh; 58 union { 59 struct sockaddr _sockaddr; 60 struct sockaddr_in _sockaddr_in; 61 struct sockaddr_in6 _sockaddr_in6; 62 } sgid_addr, dgid_addr; 63 }; 64 65 struct rxe_send_wr { 66 __u64 wr_id; 67 __u32 num_sge; 68 __u32 opcode; 69 __u32 send_flags; 70 union { 71 __be32 imm_data; 72 __u32 invalidate_rkey; 73 } ex; 74 union { 75 struct { 76 __u64 remote_addr; 77 __u32 rkey; 78 } rdma; 79 struct { 80 __u64 remote_addr; 81 __u64 compare_add; 82 __u64 swap; 83 __u32 rkey; 84 } atomic; 85 struct { 86 __u32 remote_qpn; 87 __u32 remote_qkey; 88 __u16 pkey_index; 89 } ud; 90 struct { 91 struct ib_mr *mr; 92 __u32 key; 93 int access; 94 } reg; 95 } wr; 96 }; 97 98 struct rxe_sge { 99 __u64 addr; 100 __u32 length; 101 __u32 lkey; 102 }; 103 104 struct mminfo { 105 __u64 offset; 106 __u32 size; 107 __u32 pad; 108 }; 109 110 struct rxe_dma_info { 111 __u32 length; 112 __u32 resid; 113 __u32 cur_sge; 114 __u32 num_sge; 115 __u32 sge_offset; 116 union { 117 __u8 inline_data[0]; 118 struct rxe_sge sge[0]; 119 }; 120 }; 121 122 struct rxe_send_wqe { 123 struct rxe_send_wr wr; 124 struct rxe_av av; 125 __u32 status; 126 __u32 state; 127 __u64 iova; 128 __u32 mask; 129 __u32 first_psn; 130 __u32 last_psn; 131 __u32 ack_length; 132 __u32 ssn; 133 __u32 has_rd_atomic; 134 struct rxe_dma_info dma; 135 }; 136 137 struct rxe_recv_wqe { 138 __u64 wr_id; 139 __u32 num_sge; 140 __u32 padding; 141 struct rxe_dma_info dma; 142 }; 143 144 #endif /* RDMA_USER_RXE_H */ 145