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: Jan Höppner <hoeppner@linux.ibm.com>
Reviewed-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

diff --git a/drivers/s390/char/tape_std.h b/drivers/s390/char/tape_std.h
index 580241866d9edc6dce848e15e0b38ecc73c4a14d..c2da50a6a1330b58469a7261b1fdacd714661627 100644 (file)
--- a/drivers/s390/char/tape_std.h
+++ b/drivers/s390/char/tape_std.h
@@ -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