1 files changed, 35 insertions, 5 deletions

diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h
index eecfa776db15..ad45bcac3ce4 100644
--- a/drivers/s390/block/dasd_eckd.h
+++ b/drivers/s390/block/dasd_eckd.h
@@ -38,8 +38,11 @@
 #define DASD_ECKD_CCW_RELEASE            0x94
 #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_PFX                0xE7
+#define DASD_ECKD_CCW_PFX_READ           0xEA
 #define DASD_ECKD_CCW_RSCK               0xF9
 
 /*
@@ -123,7 +126,9 @@ struct DE_eckd_data {
         unsigned long long ep_sys_time; /* Ext Parameter - System Time Stamp */
         __u8 ep_format;        /* Extended Parameter format byte       */
         __u8 ep_prio;          /* Extended Parameter priority I/O byte */
-        __u8 ep_reserved[6];   /* Extended Parameter Reserved          */
+        __u8 ep_reserved1;     /* Extended Parameter Reserved          */
+        __u8 ep_rec_per_track; /* Number of records on a track         */
+        __u8 ep_reserved[4];   /* Extended Parameter Reserved          */
 } __attribute__ ((packed));
 
 struct LO_eckd_data {
@@ -144,11 +149,37 @@ struct LO_eckd_data {
         __u16 length;
 } __attribute__ ((packed));
 
+struct LRE_eckd_data {
+        struct {
+                unsigned char orientation:2;
+                unsigned char operation:6;
+        } __attribute__ ((packed)) operation;
+        struct {
+                unsigned char length_valid:1;
+                unsigned char length_scope:1;
+                unsigned char imbedded_ccw_valid:1;
+                unsigned char check_bytes:2;
+                unsigned char imbedded_count_valid:1;
+                unsigned char reserved:1;
+                unsigned char read_count_suffix:1;
+        } __attribute__ ((packed)) auxiliary;
+        __u8 imbedded_ccw;
+        __u8 count;
+        struct ch_t seek_addr;
+        struct chr_t search_arg;
+        __u8 sector;
+        __u16 length;
+        __u8 imbedded_count;
+        __u8 extended_operation;
+        __u16 extended_parameter_length;
+        __u8 extended_parameter[0];
+} __attribute__ ((packed));
+
 /* Prefix data for format 0x00 and 0x01 */
 struct PFX_eckd_data {
         unsigned char format;
         struct {
-                unsigned char define_extend:1;
+                unsigned char define_extent:1;
                 unsigned char time_stamp:1;
                 unsigned char verify_base:1;
                 unsigned char hyper_pav:1;
@@ -158,9 +189,8 @@ struct PFX_eckd_data {
         __u8 aux;
         __u8 base_lss;
         __u8 reserved[7];
-        struct DE_eckd_data define_extend;
-        struct LO_eckd_data locate_record;
-        __u8 LO_extended_data[4];
+        struct DE_eckd_data define_extent;
+        struct LRE_eckd_data locate_record;
 } __attribute__ ((packed));
 
 struct dasd_eckd_characteristics {