LXR qemu/hw/rdma/rdma

   1/*
   2 * RDMA device: Definitions of Resource Manager functions
   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_RM_H
  17#define RDMA_RM_H
  18
  19#include "qapi/error.h"
  20#include "rdma_backend_defs.h"
  21#include "rdma_rm_defs.h"
  22
  23int rdma_rm_init(RdmaDeviceResources *dev_res, struct ibv_device_attr *dev_attr,
  24                 Error **errp);
  25void rdma_rm_fini(RdmaDeviceResources *dev_res);
  26
  27int rdma_rm_alloc_pd(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
  28                     uint32_t *pd_handle, uint32_t ctx_handle);
  29RdmaRmPD *rdma_rm_get_pd(RdmaDeviceResources *dev_res, uint32_t pd_handle);
  30void rdma_rm_dealloc_pd(RdmaDeviceResources *dev_res, uint32_t pd_handle);
  31
  32int rdma_rm_alloc_mr(RdmaDeviceResources *dev_res, uint32_t pd_handle,
  33                     uint64_t guest_start, size_t guest_length, void *host_virt,
  34                     int access_flags, uint32_t *mr_handle, uint32_t *lkey,
  35                     uint32_t *rkey);
  36RdmaRmMR *rdma_rm_get_mr(RdmaDeviceResources *dev_res, uint32_t mr_handle);
  37void rdma_rm_dealloc_mr(RdmaDeviceResources *dev_res, uint32_t mr_handle);
  38
  39int rdma_rm_alloc_uc(RdmaDeviceResources *dev_res, uint32_t pfn,
  40                     uint32_t *uc_handle);
  41RdmaRmUC *rdma_rm_get_uc(RdmaDeviceResources *dev_res, uint32_t uc_handle);
  42void rdma_rm_dealloc_uc(RdmaDeviceResources *dev_res, uint32_t uc_handle);
  43
  44int rdma_rm_alloc_cq(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
  45                     uint32_t cqe, uint32_t *cq_handle, void *opaque);
  46RdmaRmCQ *rdma_rm_get_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle);
  47void rdma_rm_req_notify_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle,
  48                           bool notify);
  49void rdma_rm_dealloc_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle);
  50
  51int rdma_rm_alloc_qp(RdmaDeviceResources *dev_res, uint32_t pd_handle,
  52                     uint8_t qp_type, uint32_t max_send_wr,
  53                     uint32_t max_send_sge, uint32_t send_cq_handle,
  54                     uint32_t max_recv_wr, uint32_t max_recv_sge,
  55                     uint32_t recv_cq_handle, void *opaque, uint32_t *qpn);
  56RdmaRmQP *rdma_rm_get_qp(RdmaDeviceResources *dev_res, uint32_t qpn);
  57int rdma_rm_modify_qp(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
  58                      uint32_t qp_handle, uint32_t attr_mask,
  59                      union ibv_gid *dgid, uint32_t dqpn,
  60                      enum ibv_qp_state qp_state, uint32_t qkey,
  61                      uint32_t rq_psn, uint32_t sq_psn);
  62int rdma_rm_query_qp(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
  63                     uint32_t qp_handle, struct ibv_qp_attr *attr,
  64                     int attr_mask, struct ibv_qp_init_attr *init_attr);
  65void rdma_rm_dealloc_qp(RdmaDeviceResources *dev_res, uint32_t qp_handle);
  66
  67int rdma_rm_alloc_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t *cqe_ctx_id,
  68                          void *ctx);
  69void *rdma_rm_get_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t cqe_ctx_id);
  70void rdma_rm_dealloc_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t cqe_ctx_id);
  71
  72#endif
  73