* tape device driver for 3480/3490E/3590 tapes.
*
* S390 and zSeries version
- * Copyright (C) 2001,2002 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ * Copyright (C) 2001,2005 IBM Deutschland Entwicklung GmbH, IBM Corporation
* Author(s): Carsten Otte <cotte@de.ibm.com>
* Tuan Ngo-Anh <ngoanh@de.ibm.com>
* Martin Schwidefsky <schwidefsky@de.ibm.com>
+ * Stefan Bader <shbader@de.ibm.com>
*/
#ifndef _TAPE_H
#include <asm/ccwdev.h>
#include <asm/debug.h>
#include <asm/idals.h>
-#include <linux/config.h>
#include <linux/blkdev.h>
#include <linux/kernel.h>
#include <linux/module.h>
TAPE_REQUEST_QUEUED, /* request is queued to be processed */
TAPE_REQUEST_IN_IO, /* request is currently in IO */
TAPE_REQUEST_DONE, /* request is completed. */
+ TAPE_REQUEST_CANCEL, /* request should be canceled. */
};
/* Tape CCW request */
/* Block Frontend Data */
struct tape_blk_data
{
+ struct tape_device * device;
/* Block device request queue. */
request_queue_t * request_queue;
spinlock_t request_queue_lock;
/* Block dev frontend data */
struct tape_blk_data blk_data;
#endif
+
+ /* Function to start or stop the next request later. */
+ struct delayed_work tape_dnr;
};
/* Externals from tape_core.c */
extern int tape_do_io(struct tape_device *, struct tape_request *);
extern int tape_do_io_async(struct tape_device *, struct tape_request *);
extern int tape_do_io_interruptible(struct tape_device *, struct tape_request *);
+extern int tape_cancel_io(struct tape_device *, struct tape_request *);
void tape_hotplug_event(struct tape_device *, int major, int action);
static inline int