contrib/rdmacm-mux/rdmacm-mux.h

   1 /*
   2  * QEMU paravirtual RDMA - rdmacm-mux declarations
   3  *
   4  * Copyright (C) 2018 Oracle
   5  * Copyright (C) 2018 Red Hat Inc
   6  *
   7  * Authors:
   8  *     Yuval Shaia <yuval.shaia@oracle.com>
   9  *     Marcel Apfelbaum <marcel@redhat.com>
  10  *
  11  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  12  * See the COPYING file in the top-level directory.
  13  *
  14  */
  15
  16 #ifndef RDMACM_MUX_H
  17 #define RDMACM_MUX_H
  18
  19 #include "linux/if.h"
  20 #include <infiniband/verbs.h>
  21 #include <infiniband/umad.h>
  22 #include <rdma/rdma_user_cm.h>
  23
  24 typedef enum RdmaCmMuxMsgType {
  25     RDMACM_MUX_MSG_TYPE_REQ   = 0,
  26     RDMACM_MUX_MSG_TYPE_RESP  = 1,
  27 } RdmaCmMuxMsgType;
  28
  29 typedef enum RdmaCmMuxOpCode {
  30     RDMACM_MUX_OP_CODE_REG   = 0,
  31     RDMACM_MUX_OP_CODE_UNREG = 1,
  32     RDMACM_MUX_OP_CODE_MAD   = 2,
  33 } RdmaCmMuxOpCode;
  34
  35 typedef enum RdmaCmMuxErrCode {
  36     RDMACM_MUX_ERR_CODE_OK        = 0,
  37     RDMACM_MUX_ERR_CODE_EINVAL    = 1,
  38     RDMACM_MUX_ERR_CODE_EEXIST    = 2,
  39     RDMACM_MUX_ERR_CODE_EACCES    = 3,
  40     RDMACM_MUX_ERR_CODE_ENOTFOUND = 4,
  41 } RdmaCmMuxErrCode;
  42
  43 typedef struct RdmaCmMuxHdr {
  44     RdmaCmMuxMsgType msg_type;
  45     RdmaCmMuxOpCode op_code;
  46     union ibv_gid sgid;
  47     RdmaCmMuxErrCode err_code;
  48 } RdmaCmUHdr;
  49
  50 typedef struct RdmaCmUMad {
  51     struct ib_user_mad hdr;
  52     char mad[RDMA_MAX_PRIVATE_DATA];
  53 } RdmaCmUMad;
  54
  55 typedef struct RdmaCmMuxMsg {
  56     RdmaCmUHdr hdr;
  57     int umad_len;
  58     RdmaCmUMad umad;
  59 } RdmaCmMuxMsg;
  60
  61 #endif