LXR linux/drivers/misc/vmw_vmci/vmci

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * VMware VMCI Driver
   4 *
   5 * Copyright (C) 2012 VMware, Inc. All rights reserved.
   6 */
   7
   8#ifndef VMCI_DOORBELL_H
   9#define VMCI_DOORBELL_H
  10
  11#include <linux/vmw_vmci_defs.h>
  12#include <linux/types.h>
  13
  14#include "vmci_driver.h"
  15
  16/*
  17 * VMCINotifyResourceInfo: Used to create and destroy doorbells, and
  18 * generate a notification for a doorbell or queue pair.
  19 */
  20struct vmci_dbell_notify_resource_info {
  21        struct vmci_handle handle;
  22        u16 resource;
  23        u16 action;
  24        s32 result;
  25};
  26
  27/*
  28 * Structure used for checkpointing the doorbell mappings. It is
  29 * written to the checkpoint as is, so changing this structure will
  30 * break checkpoint compatibility.
  31 */
  32struct dbell_cpt_state {
  33        struct vmci_handle handle;
  34        u64 bitmap_idx;
  35};
  36
  37int vmci_dbell_host_context_notify(u32 src_cid, struct vmci_handle handle);
  38int vmci_dbell_get_priv_flags(struct vmci_handle handle, u32 *priv_flags);
  39
  40bool vmci_dbell_register_notification_bitmap(u64 bitmap_ppn);
  41void vmci_dbell_scan_notification_entries(u8 *bitmap);
  42
  43#endif /* VMCI_DOORBELL_H */
  44