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authorStefan Bader <shbader@de.ibm.com>2005-07-27 22:45:04 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-07-28 03:26:05 +0400
commit4111796d89b8cfa36054d65d9858460b5ec0e8c7 (patch)
treef42f2822983882f391a99414d98a572cbc330f77 /drivers/s390/char/tape.h
parent6bb0e01081c2ca585b5e145783fea53bb0589786 (diff)
downloadlinux-4111796d89b8cfa36054d65d9858460b5ec0e8c7.tar.xz
[PATCH] s390: channel tape fixes
Tape driver fixes: - Added deferred condition handling to tape driver core. - Added ability to handle busy conditions. - Code cleanup. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/s390/char/tape.h')
-rw-r--r--drivers/s390/char/tape.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/s390/char/tape.h b/drivers/s390/char/tape.h
index d04e6c2c3cc1..01d865d93791 100644
--- a/drivers/s390/char/tape.h
+++ b/drivers/s390/char/tape.h
@@ -3,10 +3,11 @@
* 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
@@ -111,6 +112,7 @@ enum tape_request_status {
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 */
@@ -237,6 +239,9 @@ struct tape_device {
/* Block dev frontend data */
struct tape_blk_data blk_data;
#endif
+
+ /* Function to start or stop the next request later. */
+ struct work_struct tape_dnr;
};
/* Externals from tape_core.c */