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VMCI: resource object implementation.

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VMCI resource tracks all used resources within the vmci code.

Signed-off-by: George Zhang <georgezhang@vmware.com>
Acked-by: Andy king <acking@vmware.com>
Acked-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
George Zhang
2013-01-08 15:55:07 -08:00
committed by Greg Kroah-Hartman
parent 06164d2b72
commit bc63dedb7d
2 changed files with 288 additions and 0 deletions
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59
drivers/misc/vmw_vmci/vmci_resource.h Normal file
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/*
* VMware VMCI Driver
*
* Copyright (C) 2012 VMware, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation version 2 and no later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#ifndef _VMCI_RESOURCE_H_
#define _VMCI_RESOURCE_H_
#include <linux/vmw_vmci_defs.h>
#include <linux/types.h>
#include "vmci_context.h"
enum vmci_resource_type {
VMCI_RESOURCE_TYPE_ANY,
VMCI_RESOURCE_TYPE_API,
VMCI_RESOURCE_TYPE_GROUP,
VMCI_RESOURCE_TYPE_DATAGRAM,
VMCI_RESOURCE_TYPE_DOORBELL,
VMCI_RESOURCE_TYPE_QPAIR_GUEST,
VMCI_RESOURCE_TYPE_QPAIR_HOST
};
struct vmci_resource {
struct vmci_handle handle;
enum vmci_resource_type type;
struct hlist_node node;
struct kref kref;
struct completion done;
};
int vmci_resource_add(struct vmci_resource *resource,
enum vmci_resource_type resource_type,
struct vmci_handle handle);
void vmci_resource_remove(struct vmci_resource *resource);
struct vmci_resource *
vmci_resource_by_handle(struct vmci_handle resource_handle,
enum vmci_resource_type resource_type);
struct vmci_resource *vmci_resource_get(struct vmci_resource *resource);
int vmci_resource_put(struct vmci_resource *resource);
struct vmci_handle vmci_resource_handle(struct vmci_resource *resource);
#endif /* _VMCI_RESOURCE_H_ */