[S390] dasd: Add support for raw ECKD access.

Normal I/O operations through the DASD device driver give only access
to the data fields of an ECKD device even for track based I/O.
This patch extends the DASD device driver to give access to whole
ECKD tracks including count, key and data fields.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h
index 5051f374cbcb..4a688a873a77 100644
--- a/drivers/s390/block/dasd_eckd.h
+++ b/drivers/s390/block/dasd_eckd.h
@@ -37,11 +37,13 @@
 #define DASD_ECKD_CCW_WRITE_KD_MT        0x8d
 #define DASD_ECKD_CCW_READ_KD_MT         0x8e
 #define DASD_ECKD_CCW_RELEASE            0x94
+#define DASD_ECKD_CCW_WRITE_FULL_TRACK   0x95
 #define DASD_ECKD_CCW_READ_CKD_MT        0x9e
 #define DASD_ECKD_CCW_WRITE_CKD_MT       0x9d
 #define DASD_ECKD_CCW_WRITE_TRACK_DATA   0xA5
 #define DASD_ECKD_CCW_READ_TRACK_DATA    0xA6
 #define DASD_ECKD_CCW_RESERVE            0xB4
+#define DASD_ECKD_CCW_READ_TRACK         0xDE
 #define DASD_ECKD_CCW_PFX                0xE7
 #define DASD_ECKD_CCW_PFX_READ           0xEA
 #define DASD_ECKD_CCW_RSCK               0xF9