include/uapi/rdma/rdma_user_rxe.h

   1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
   2 /*
   3  * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
   4  *
   5  * This software is available to you under a choice of one of two
   6  * licenses.  You may choose to be licensed under the terms of the GNU
   7  * General Public License (GPL) Version 2, available from the file
   8  * COPYING in the main directory of this source tree, or the
   9  * OpenIB.org BSD license below:
  10  *
  11  *     Redistribution and use in source and binary forms, with or
  12  *     without modification, are permitted provided that the following
  13  *     conditions are met:
  14  *
  15  *      - Redistributions of source code must retain the above
  16  *        copyright notice, this list of conditions and the following
  17  *        disclaimer.
  18  *
  19  *      - Redistributions in binary form must reproduce the above
  20  *        copyright notice, this list of conditions and the following
  21  *        disclaimer in the documentation and/or other materials
  22  *        provided with the distribution.
  23  *
  24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  28  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  29  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  30  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  31  * SOFTWARE.
  32  */
  33
  34 #ifndef RDMA_USER_RXE_H
  35 #define RDMA_USER_RXE_H
  36
  37 #include <linux/types.h>
  38
  39 union rxe_gid {
  40         __u8    raw[16];
  41         struct {
  42                 __be64  subnet_prefix;
  43                 __be64  interface_id;
  44         } global;
  45 };
  46
  47 struct rxe_global_route {
  48         union rxe_gid   dgid;
  49         __u32           flow_label;
  50         __u8            sgid_index;
  51         __u8            hop_limit;
  52         __u8            traffic_class;
  53 };
  54
  55 struct rxe_av {
  56         __u8                    port_num;
  57         __u8                    network_type;
  58         struct rxe_global_route grh;
  59         union {
  60                 struct sockaddr         _sockaddr;
  61                 struct sockaddr_in      _sockaddr_in;
  62                 struct sockaddr_in6     _sockaddr_in6;
  63         } sgid_addr, dgid_addr;
  64 };
  65
  66 struct rxe_send_wr {
  67         __u64                   wr_id;
  68         __u32                   num_sge;
  69         __u32                   opcode;
  70         __u32                   send_flags;
  71         union {
  72                 __be32          imm_data;
  73                 __u32           invalidate_rkey;
  74         } ex;
  75         union {
  76                 struct {
  77                         __u64   remote_addr;
  78                         __u32   rkey;
  79                 } rdma;
  80                 struct {
  81                         __u64   remote_addr;
  82                         __u64   compare_add;
  83                         __u64   swap;
  84                         __u32   rkey;
  85                 } atomic;
  86                 struct {
  87                         __u32   remote_qpn;
  88                         __u32   remote_qkey;
  89                         __u16   pkey_index;
  90                 } ud;
  91                 struct {
  92                         struct ib_mr *mr;
  93                         __u32        key;
  94                         int          access;
  95                 } reg;
  96         } wr;
  97 };
  98
  99 struct rxe_sge {
 100         __u64   addr;
 101         __u32   length;
 102         __u32   lkey;
 103 };
 104
 105 struct mminfo {
 106         __u64                   offset;
 107         __u32                   size;
 108         __u32                   pad;
 109 };
 110
 111 struct rxe_dma_info {
 112         __u32                   length;
 113         __u32                   resid;
 114         __u32                   cur_sge;
 115         __u32                   num_sge;
 116         __u32                   sge_offset;
 117         union {
 118                 __u8            inline_data[0];
 119                 struct rxe_sge  sge[0];
 120         };
 121 };
 122
 123 struct rxe_send_wqe {
 124         struct rxe_send_wr      wr;
 125         struct rxe_av           av;
 126         __u32                   status;
 127         __u32                   state;
 128         __u64                   iova;
 129         __u32                   mask;
 130         __u32                   first_psn;
 131         __u32                   last_psn;
 132         __u32                   ack_length;
 133         __u32                   ssn;
 134         __u32                   has_rd_atomic;
 135         struct rxe_dma_info     dma;
 136 };
 137
 138 struct rxe_recv_wqe {
 139         __u64                   wr_id;
 140         __u32                   num_sge;
 141         __u32                   padding;
 142         struct rxe_dma_info     dma;
 143 };
 144
 145 #endif /* RDMA_USER_RXE_H */