xref: /linux/drivers/misc/vmw_vmci/vmci_resource.h (revision 6ed7ffddcf61f668114edb676417e5fb33773b59)
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_ */
60