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,
  24                 struct ibv_device_attr *dev_attr);
  25void rdma_rm_fini(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
  26                  const char *ifname);
  27
  28int rdma_rm_alloc_pd(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
  29                     uint32_t *pd_handle, uint32_t ctx_handle);
  30RdmaRmPD *rdma_rm_get_pd(RdmaDeviceResources *dev_res, uint32_t pd_handle);
  31void rdma_rm_dealloc_pd(RdmaDeviceResources *dev_res, uint32_t pd_handle);
  32
  33int rdma_rm_alloc_mr(RdmaDeviceResources *dev_res, uint32_t pd_handle,
  34                     uint64_t guest_start, uint64_t guest_length,
  35                     void *host_virt, int access_flags, uint32_t *mr_handle,
  36                     uint32_t *lkey, uint32_t *rkey);
  37RdmaRmMR *rdma_rm_get_mr(RdmaDeviceResources *dev_res, uint32_t mr_handle);
  38void rdma_rm_dealloc_mr(RdmaDeviceResources *dev_res, uint32_t mr_handle);
  39
  40int rdma_rm_alloc_uc(RdmaDeviceResources *dev_res, uint32_t pfn,
  41                     uint32_t *uc_handle);
  42RdmaRmUC *rdma_rm_get_uc(RdmaDeviceResources *dev_res, uint32_t uc_handle);
  43void rdma_rm_dealloc_uc(RdmaDeviceResources *dev_res, uint32_t uc_handle);
  44
  45int rdma_rm_alloc_cq(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
  46                     uint32_t cqe, uint32_t *cq_handle, void *opaque);
  47RdmaRmCQ *rdma_rm_get_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle);
  48void rdma_rm_req_notify_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle,
  49                           bool notify);
  50void rdma_rm_dealloc_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle);
  51
  52int rdma_rm_alloc_qp(RdmaDeviceResources *dev_res, uint32_t pd_handle,
  53                     uint8_t qp_type, uint32_t max_send_wr,
  54                     uint32_t max_send_sge, uint32_t send_cq_handle,
  55                     uint32_t max_recv_wr, uint32_t max_recv_sge,
  56                     uint32_t recv_cq_handle, void *opaque, uint32_t *qpn,
  57                     uint8_t is_srq, uint32_t srq_handle);
  58RdmaRmQP *rdma_rm_get_qp(RdmaDeviceResources *dev_res, uint32_t qpn);
  59int rdma_rm_modify_qp(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
  60                      uint32_t qp_handle, uint32_t attr_mask, uint8_t sgid_idx,
  61                      union ibv_gid *dgid, uint32_t dqpn,
  62                      enum ibv_qp_state qp_state, uint32_t qkey,
  63                      uint32_t rq_psn, uint32_t sq_psn);
  64int rdma_rm_query_qp(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
  65                     uint32_t qp_handle, struct ibv_qp_attr *attr,
  66                     int attr_mask, struct ibv_qp_init_attr *init_attr);
  67void rdma_rm_dealloc_qp(RdmaDeviceResources *dev_res, uint32_t qp_handle);
  68
  69RdmaRmSRQ *rdma_rm_get_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle);
  70int rdma_rm_alloc_srq(RdmaDeviceResources *dev_res, uint32_t pd_handle,
  71                      uint32_t max_wr, uint32_t max_sge, uint32_t srq_limit,
  72                      uint32_t *srq_handle, void *opaque);
  73int rdma_rm_query_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle,
  74                      struct ibv_srq_attr *srq_attr);
  75int rdma_rm_modify_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle,
  76                       struct ibv_srq_attr *srq_attr, int srq_attr_mask);
  77void rdma_rm_dealloc_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle);
  78
  79int rdma_rm_alloc_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t *cqe_ctx_id,
  80                          void *ctx);
  81void *rdma_rm_get_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t cqe_ctx_id);
  82void rdma_rm_dealloc_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t cqe_ctx_id);
  83
  84int rdma_rm_add_gid(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
  85                    const char *ifname, union ibv_gid *gid, int gid_idx);
  86int rdma_rm_del_gid(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
  87                    const char *ifname, int gid_idx);
  88int rdma_rm_get_backend_gid_index(RdmaDeviceResources *dev_res,
  89                                  RdmaBackendDev *backend_dev, int sgid_idx);
  90static inline union ibv_gid *rdma_rm_get_gid(RdmaDeviceResources *dev_res,
  91                                             int sgid_idx)
  92{
  93    return &dev_res->port.gid_tbl[sgid_idx].gid;
  94}
  95void rdma_dump_device_counters(Monitor *mon, RdmaDeviceResources *dev_res);
  96
  97#endif
  98