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Diffstat (limited to 'drivers/s390/block/dasd_diag.h')
-rw-r--r--drivers/s390/block/dasd_diag.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/s390/block/dasd_diag.h b/drivers/s390/block/dasd_diag.h
new file mode 100644
index 000000000000..a0c38e303979
--- /dev/null
+++ b/drivers/s390/block/dasd_diag.h
@@ -0,0 +1,66 @@
+/*
+ * File...........: linux/drivers/s390/block/dasd_diag.h
+ * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
+ * Based on.......: linux/drivers/s390/block/mdisk.h
+ * ...............: by Hartmunt Penner <hpenner@de.ibm.com>
+ * Bugreports.to..: <Linux390@de.ibm.com>
+ * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
+ *
+ * $Revision: 1.6 $
+ */
+
+#define MDSK_WRITE_REQ 0x01
+#define MDSK_READ_REQ 0x02
+
+#define INIT_BIO 0x00
+#define RW_BIO 0x01
+#define TERM_BIO 0x02
+
+#define DEV_CLASS_FBA 0x01
+#define DEV_CLASS_ECKD 0x04
+
+struct dasd_diag_characteristics {
+ u16 dev_nr;
+ u16 rdc_len;
+ u8 vdev_class;
+ u8 vdev_type;
+ u8 vdev_status;
+ u8 vdev_flags;
+ u8 rdev_class;
+ u8 rdev_type;
+ u8 rdev_model;
+ u8 rdev_features;
+} __attribute__ ((packed, aligned(4)));
+
+struct dasd_diag_bio {
+ u8 type;
+ u8 status;
+ u16 spare1;
+ u32 block_number;
+ u32 alet;
+ u32 buffer;
+} __attribute__ ((packed, aligned(8)));
+
+struct dasd_diag_init_io {
+ u16 dev_nr;
+ u16 spare1[11];
+ u32 block_size;
+ u32 offset;
+ u32 start_block;
+ u32 end_block;
+ u32 spare2[6];
+} __attribute__ ((packed, aligned(8)));
+
+struct dasd_diag_rw_io {
+ u16 dev_nr;
+ u16 spare1[11];
+ u8 key;
+ u8 flags;
+ u16 spare2;
+ u32 block_count;
+ u32 alet;
+ u32 bio_list;
+ u32 interrupt_params;
+ u32 spare3[5];
+} __attribute__ ((packed, aligned(8)));
+