include/uapi/rdma/rdma_user_rxe.h

   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 */