hw/rdma/rdma_backend_defs.h

   1 /*
   2  *  RDMA device: Definitions of Backend Device structures
   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 RDMA_BACKEND_DEFS_H
  17 #define RDMA_BACKEND_DEFS_H
  18
  19 #include "qemu/thread.h"
  20 #include "chardev/char-fe.h"
  21 #include <infiniband/verbs.h>
  22 #include "contrib/rdmacm-mux/rdmacm-mux.h"
  23 #include "rdma_utils.h"
  24
  25 typedef struct RdmaDeviceResources RdmaDeviceResources;
  26
  27 typedef struct RdmaBackendThread {
  28     QemuThread thread;
  29     bool run; /* Set by thread manager to let thread know it should exit */
  30     bool is_running; /* Set by the thread to report its status */
  31 } RdmaBackendThread;
  32
  33 typedef struct RdmaCmMux {
  34     CharBackend *chr_be;
  35     int can_receive;
  36 } RdmaCmMux;
  37
  38 typedef struct RdmaBackendDev {
  39     RdmaBackendThread comp_thread;
  40     PCIDevice *dev;
  41     RdmaDeviceResources *rdma_dev_res;
  42     struct ibv_device *ib_dev;
  43     struct ibv_context *context;
  44     struct ibv_comp_channel *channel;
  45     uint8_t port_num;
  46     RdmaProtectedGQueue recv_mads_list;
  47     RdmaCmMux rdmacm_mux;
  48 } RdmaBackendDev;
  49
  50 typedef struct RdmaBackendPD {
  51     struct ibv_pd *ibpd;
  52 } RdmaBackendPD;
  53
  54 typedef struct RdmaBackendMR {
  55     struct ibv_pd *ibpd;
  56     struct ibv_mr *ibmr;
  57 } RdmaBackendMR;
  58
  59 typedef struct RdmaBackendCQ {
  60     RdmaBackendDev *backend_dev;
  61     struct ibv_cq *ibcq;
  62 } RdmaBackendCQ;
  63
  64 typedef struct RdmaBackendQP {
  65     struct ibv_pd *ibpd;
  66     struct ibv_qp *ibqp;
  67     uint8_t sgid_idx;
  68     RdmaProtectedGSList cqe_ctx_list;
  69 } RdmaBackendQP;
  70
  71 typedef struct RdmaBackendSRQ {
  72     struct ibv_srq *ibsrq;
  73     RdmaProtectedGSList cqe_ctx_list;
  74 } RdmaBackendSRQ;
  75
  76 #endif