drivers/misc/vmw_vmci/vmci_resource.h

   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_RESOURCE_H_
  17 #define _VMCI_RESOURCE_H_
  18
  19 #include <linux/vmw_vmci_defs.h>
  20 #include <linux/types.h>
  21
  22 #include "vmci_context.h"
  23
  24
  25 enum vmci_resource_type {
  26         VMCI_RESOURCE_TYPE_ANY,
  27         VMCI_RESOURCE_TYPE_API,
  28         VMCI_RESOURCE_TYPE_GROUP,
  29         VMCI_RESOURCE_TYPE_DATAGRAM,
  30         VMCI_RESOURCE_TYPE_DOORBELL,
  31         VMCI_RESOURCE_TYPE_QPAIR_GUEST,
  32         VMCI_RESOURCE_TYPE_QPAIR_HOST
  33 };
  34
  35 struct vmci_resource {
  36         struct vmci_handle handle;
  37         enum vmci_resource_type type;
  38         struct hlist_node node;
  39         struct kref kref;
  40         struct completion done;
  41 };
  42
  43
  44 int vmci_resource_add(struct vmci_resource *resource,
  45                       enum vmci_resource_type resource_type,
  46                       struct vmci_handle handle);
  47
  48 void vmci_resource_remove(struct vmci_resource *resource);
  49
  50 struct vmci_resource *
  51 vmci_resource_by_handle(struct vmci_handle resource_handle,
  52                         enum vmci_resource_type resource_type);
  53
  54 struct vmci_resource *vmci_resource_get(struct vmci_resource *resource);
  55 int vmci_resource_put(struct vmci_resource *resource);
  56
  57 struct vmci_handle vmci_resource_handle(struct vmci_resource *resource);
  58
  59 #endif /* _VMCI_RESOURCE_H_ */