[PATCH] s390: 64 bit diag250 support
Add support for diag 250 access to dasd devices for 64 bit kernels. In
addition fix detach/attach for diag disks. The VM control block needs to get
recreated by a call to mdsk_init_io.
Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
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>
diff --git a/drivers/s390/block/dasd_diag.h b/drivers/s390/block/dasd_diag.h
index a0c38e3..b26eb28 100644
--- a/drivers/s390/block/dasd_diag.h
+++ b/drivers/s390/block/dasd_diag.h
@@ -6,7 +6,7 @@
* Bugreports.to..: <Linux390@de.ibm.com>
* (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
*
- * $Revision: 1.6 $
+ * $Revision: 1.7 $
*/
#define MDSK_WRITE_REQ 0x01
@@ -19,6 +19,18 @@
#define DEV_CLASS_FBA 0x01
#define DEV_CLASS_ECKD 0x04
+#define DASD_DIAG_LC_INT_CODE 132
+#define DASD_DIAG_LC_INT_STATUS 133
+#define DASD_DIAG_LC_INT_PARM_31BIT 128
+#define DASD_DIAG_LC_INT_PARM_64BIT 4536
+#define DASD_DIAG_CODE_31BIT 0x03
+#define DASD_DIAG_CODE_64BIT 0x07
+
+#define DASD_DIAG_RWFLAG_ASYNC 0x02
+#define DASD_DIAG_RWFLAG_NOCACHE 0x01
+
+#define DASD_DIAG_FLAGA_FORMAT_64BIT 0x80
+
struct dasd_diag_characteristics {
u16 dev_nr;
u16 rdc_len;
@@ -32,35 +44,106 @@
u8 rdev_features;
} __attribute__ ((packed, aligned(4)));
+struct dasd_diag_cms_label {
+ u8 label_id[4];
+ u8 vol_id[6];
+ u16 version_id;
+ u32 block_size;
+ u32 origin_ptr;
+ u32 usable_count;
+ u32 formatted_count;
+ u32 block_count;
+ u32 used_count;
+ u32 fst_size;
+ u32 fst_count;
+ u8 format_date[6];
+ u8 reserved1[2];
+ u32 disk_offset;
+ u32 map_block;
+ u32 hblk_disp;
+ u32 user_disp;
+ u8 reserved2[4];
+ u8 segment_name[8];
+} __attribute__ ((packed));
+
+#ifdef CONFIG_ARCH_S390X
+#define DASD_DIAG_FLAGA_DEFAULT DASD_DIAG_FLAGA_FORMAT_64BIT
+
+typedef u64 blocknum_t;
+typedef s64 sblocknum_t;
+
+struct dasd_diag_bio {
+ u8 type;
+ u8 status;
+ u8 spare1[2];
+ u32 alet;
+ blocknum_t block_number;
+ u64 buffer;
+} __attribute__ ((packed, aligned(8)));
+
+struct dasd_diag_init_io {
+ u16 dev_nr;
+ u8 flaga;
+ u8 spare1[21];
+ u32 block_size;
+ u8 spare2[4];
+ blocknum_t offset;
+ sblocknum_t start_block;
+ blocknum_t end_block;
+ u8 spare3[8];
+} __attribute__ ((packed, aligned(8)));
+
+struct dasd_diag_rw_io {
+ u16 dev_nr;
+ u8 flaga;
+ u8 spare1[21];
+ u8 key;
+ u8 flags;
+ u8 spare2[2];
+ u32 block_count;
+ u32 alet;
+ u8 spare3[4];
+ u64 interrupt_params;
+ u64 bio_list;
+ u8 spare4[8];
+} __attribute__ ((packed, aligned(8)));
+#else /* CONFIG_ARCH_S390X */
+#define DASD_DIAG_FLAGA_DEFAULT 0x0
+
+typedef u32 blocknum_t;
+typedef s32 sblocknum_t;
+
struct dasd_diag_bio {
u8 type;
u8 status;
u16 spare1;
- u32 block_number;
+ blocknum_t block_number;
u32 alet;
u32 buffer;
} __attribute__ ((packed, aligned(8)));
struct dasd_diag_init_io {
u16 dev_nr;
- u16 spare1[11];
+ u8 flaga;
+ u8 spare1[21];
u32 block_size;
- u32 offset;
- u32 start_block;
- u32 end_block;
- u32 spare2[6];
+ blocknum_t offset;
+ sblocknum_t start_block;
+ blocknum_t end_block;
+ u8 spare2[24];
} __attribute__ ((packed, aligned(8)));
struct dasd_diag_rw_io {
u16 dev_nr;
- u16 spare1[11];
+ u8 flaga;
+ u8 spare1[21];
u8 key;
u8 flags;
- u16 spare2;
+ u8 spare2[2];
u32 block_count;
u32 alet;
u32 bio_list;
u32 interrupt_params;
- u32 spare3[5];
+ u8 spare3[20];
} __attribute__ ((packed, aligned(8)));
-
+#endif /* CONFIG_ARCH_S390X */