LXR linux/drivers/misc/vmw_vmci/vmci

   1/*
   2 * VMware VMCI Driver
   3 *
   4 * Copyright (C) 2012 VMware, Inc. All rights reserved.
   5 *
   6 * This program is free software; you can redistribute it and/or modify it
   7 * under the terms of the GNU General Public License as published by the
   8 * Free Software Foundation version 2 and no later version.
   9 *
  10 * This program is distributed in the hope that it will be useful, but
  11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13 * for more details.
  14 */
  15
  16#ifndef VMCI_DOORBELL_H
  17#define VMCI_DOORBELL_H
  18
  19#include <linux/vmw_vmci_defs.h>
  20#include <linux/types.h>
  21
  22#include "vmci_driver.h"
  23
  24/*
  25 * VMCINotifyResourceInfo: Used to create and destroy doorbells, and
  26 * generate a notification for a doorbell or queue pair.
  27 */
  28struct vmci_dbell_notify_resource_info {
  29        struct vmci_handle handle;
  30        u16 resource;
  31        u16 action;
  32        s32 result;
  33};
  34
  35/*
  36 * Structure used for checkpointing the doorbell mappings. It is
  37 * written to the checkpoint as is, so changing this structure will
  38 * break checkpoint compatibility.
  39 */
  40struct dbell_cpt_state {
  41        struct vmci_handle handle;
  42        u64 bitmap_idx;
  43};
  44
  45int vmci_dbell_host_context_notify(u32 src_cid, struct vmci_handle handle);
  46int vmci_dbell_get_priv_flags(struct vmci_handle handle, u32 *priv_flags);
  47
  48bool vmci_dbell_register_notification_bitmap(u32 bitmap_ppn);
  49void vmci_dbell_scan_notification_entries(u8 *bitmap);
  50
  51#endif /* VMCI_DOORBELL_H */
  52