Commit 516fbb48 authored by Jan Höppner's avatar Jan Höppner Committed by Heiko Carstens
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s390/tape: Remove unused command definitions 



Quite a few command definitions are either not used or don't exist for
3490 tape devices on Virtual Tape Servers (VTS). Cleanup the list, which
makes it easier to understand what commands are actually implemented by
the driver. The lists below outline the exact reason for the removal.
Description for existing commands are adapted to reflect the removal of
support for old device types.

The following commands don't exist in VTS for 3490 devices and are
unused:
INVALID_00              0x00
DIAG_MODE_SET		0x0B
FORCE_STREAM_CNT	0xEB
LOOP_WRITE_TO_READ	0x8B
MODE_SET_C3		0xC3
MODE_SET_CB		0xCB
MODE_SET_D3		0xD3
NEW_MODE_SET		0xEB
RELEASE			0xD4
REQ_TRK_IN_ERROR	0x1B
RESERVE			0xF4
SET_DIAGNOSE		0x4B

The following command definitions are not used:
CONTROL_ACCESS		0xE3
PERF_SUBSYS_FUNC	0x77
READ_BACKWARD		0x0C
READ_BUFFER		0x12
READ_BUFF_LOG		0x24
READ_CONFIG_DATA	0xFA
READ_DEV_CHAR		0x64
READ_MESSAGE_ID		0x4E
READ_SUBSYS_DATA	0x3E
SENSE_GROUP_ID		0x34
SENSE_ID		0xE4
SET_GROUP_ID		0xAF
SET_INTERFACE_ID	0x73
SET_TAPE_WRITE_IMMED	0xC3
SUSPEND			0x5B
SYNC			0x43

Signed-off-by: default avatarJan Höppner <hoeppner@linux.ibm.com>
Reviewed-by: default avatarJens Remus <jremus@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
parent 28da74c2

drivers/s390/char/tape_std.h

+5 −33
Original line number Diff line number Diff line
@@ -19,53 +19,25 @@ 
/*

 * The CCW commands for the Tape type of command.

 */

#define INVALID_00		0x00	/* Invalid cmd */

#define BACKSPACEBLOCK		0x27	/* Back Space block */

#define BACKSPACEFILE		0x2f	/* Back Space file */

#define DATA_SEC_ERASE		0x97	/* Data security erase */

#define ERASE_GAP		0x17	/* Erase Gap */

#define FORSPACEBLOCK		0x37	/* Forward space block */

#define FORSPACEFILE		0x3F	/* Forward Space file */

#define FORCE_STREAM_CNT	0xEB	/* Forced streaming count # */

#define NOP			0x03	/* No operation	*/

#define READ_FORWARD		0x02	/* Read forward */

#define REWIND			0x07	/* Rewind */

#define REWIND_UNLOAD		0x0F	/* Rewind and Unload */

#define SENSE			0x04	/* Sense */

#define NEW_MODE_SET		0xEB	/* Guess it is Mode set */

#define WRITE_CMD		0x01	/* Write */

#define WRITETAPEMARK		0x1F	/* Write Tape Mark */



#define ASSIGN			0xB7	/* 3420 REJECT,3480 OK	*/

#define CONTROL_ACCESS		0xE3	/* Set high speed */

#define DIAG_MODE_SET		0x0B	/* 3420 NOP, 3480 REJECT */

#define LOCATE			0x4F	/* 3420 REJ, 3480 NOP */

#define LOOP_WRITE_TO_READ	0x8B	/* 3480 REJECT */

#define MODE_SET_DB		0xDB	/* 3420 REJECT,3480 OK */

#define MODE_SET_C3		0xC3	/* for 3420 */

#define MODE_SET_CB		0xCB	/* for 3420 */

#define MODE_SET_D3		0xD3	/* for 3420 */

#define READ_BACKWARD		0x0C	/* */

#define READ_BLOCK_ID		0x22	/* 3420 REJECT,3480 OK */

#define READ_BUFFER		0x12	/* 3420 REJECT,3480 OK */

#define READ_BUFF_LOG		0x24	/* 3420 REJECT,3480 OK */

#define RELEASE			0xD4	/* 3420 NOP, 3480 REJECT */

#define REQ_TRK_IN_ERROR	0x1B	/* 3420 NOP, 3480 REJECT */

#define RESERVE			0xF4	/* 3420 NOP, 3480 REJECT */

#define SENSE_GROUP_ID		0x34	/* 3420 REJECT,3480 OK */

#define SENSE_ID		0xE4	/* 3420 REJECT,3480 OK */

#define READ_DEV_CHAR		0x64	/* Read device characteristics */

#define SET_DIAGNOSE		0x4B	/* 3420 NOP, 3480 REJECT */

#define SET_GROUP_ID		0xAF	/* 3420 REJECT,3480 OK */

#define SET_TAPE_WRITE_IMMED	0xC3	/* for 3480 */

#define SUSPEND			0x5B	/* 3420 REJ, 3480 NOP */

#define SYNC			0x43	/* Synchronize (flush buffer) */

#define UNASSIGN		0xC7	/* 3420 REJECT,3480 OK */

#define PERF_SUBSYS_FUNC	0x77	/* 3490 CMD */

#define READ_CONFIG_DATA	0xFA	/* 3490 CMD */

#define READ_MESSAGE_ID		0x4E	/* 3490 CMD */

#define READ_SUBSYS_DATA	0x3E	/* 3490 CMD */

#define SET_INTERFACE_ID	0x73	/* 3490 CMD */

#define ASSIGN			0xB7	/* Assign */

#define LOCATE			0x4F	/* Locate Block */

#define MODE_SET_DB		0xDB	/* Mode Set */

#define READ_BLOCK_ID		0x22	/* Read Block ID */

#define UNASSIGN		0xC7	/* Unassign */



#define SENSE_COMMAND_REJECT		0x80

#define SENSE_INTERVENTION_REQUIRED	0x40