[POWERPC] iSeries: Move viodasd probing

[cascardo/linux.git] / include / asm-powerpc / iseries / vio.h

diff --git a/include/asm-powerpc/iseries/vio.h b/include/asm-powerpc/iseries/vio.h
index 7e3a469..f9ac0d0 100644 (file)
--- a/include/asm-powerpc/iseries/vio.h
+++ b/include/asm-powerpc/iseries/vio.h
@@ -1,5 +1,4 @@
 /* -*- linux-c -*-
- *  drivers/char/vio.h
  *
  *  iSeries Virtual I/O Message Path header
  *
@@ -52,6 +51,116 @@
  */
 #define VIO_MAX_SUBTYPES 8
 
+#define VIOMAXBLOCKDMA 12
+
+struct open_data {
+       u64     disk_size;
+       u16     max_disk;
+       u16     cylinders;
+       u16     tracks;
+       u16     sectors;
+       u16     bytes_per_sector;
+};
+
+struct rw_data {
+       u64     offset;
+       struct {
+               u32     token;
+               u32     reserved;
+               u64     len;
+       } dma_info[VIOMAXBLOCKDMA];
+};
+
+struct vioblocklpevent {
+       struct HvLpEvent        event;
+       u32                     reserved;
+       u16                     version;
+       u16                     sub_result;
+       u16                     disk;
+       u16                     flags;
+       union {
+               struct open_data        open_data;
+               struct rw_data          rw_data;
+               u64                     changed;
+       } u;
+};
+
+#define vioblockflags_ro   0x0001
+
+enum vioblocksubtype {
+       vioblockopen = 0x0001,
+       vioblockclose = 0x0002,
+       vioblockread = 0x0003,
+       vioblockwrite = 0x0004,
+       vioblockflush = 0x0005,
+       vioblockcheck = 0x0007
+};
+
+struct viocdlpevent {
+       struct HvLpEvent        event;
+       u32                     reserved;
+       u16                     version;
+       u16                     sub_result;
+       u16                     disk;
+       u16                     flags;
+       u32                     token;
+       u64                     offset;         /* On open, max number of disks */
+       u64                     len;            /* On open, size of the disk */
+       u32                     block_size;     /* Only set on open */
+       u32                     media_size;     /* Only set on open */
+};
+
+enum viocdsubtype {
+       viocdopen = 0x0001,
+       viocdclose = 0x0002,
+       viocdread = 0x0003,
+       viocdwrite = 0x0004,
+       viocdlockdoor = 0x0005,
+       viocdgetinfo = 0x0006,
+       viocdcheck = 0x0007
+};
+
+struct viotapelpevent {
+       struct HvLpEvent event;
+       u32 reserved;
+       u16 version;
+       u16 sub_type_result;
+       u16 tape;
+       u16 flags;
+       u32 token;
+       u64 len;
+       union {
+               struct {
+                       u32 tape_op;
+                       u32 count;
+               } op;
+               struct {
+                       u32 type;
+                       u32 resid;
+                       u32 dsreg;
+                       u32 gstat;
+                       u32 erreg;
+                       u32 file_no;
+                       u32 block_no;
+               } get_status;
+               struct {
+                       u32 block_no;
+               } get_pos;
+       } u;
+};
+
+enum viotapesubtype {
+       viotapeopen = 0x0001,
+       viotapeclose = 0x0002,
+       viotaperead = 0x0003,
+       viotapewrite = 0x0004,
+       viotapegetinfo = 0x0005,
+       viotapeop = 0x0006,
+       viotapegetpos = 0x0007,
+       viotapesetpos = 0x0008,
+       viotapegetstatus = 0x0009
+};
+
 /*
  * Each subtype can register a handler to process their events.
  * The handler must have this interface.
@@ -69,6 +178,8 @@ extern void vio_set_hostlp(void);
 extern void *vio_get_event_buffer(int subtype);
 extern void vio_free_event_buffer(int subtype, void *buffer);
 
+extern struct vio_dev *vio_create_viodasd(u32 unit);
+
 extern HvLpIndex viopath_hostLp;
 extern HvLpIndex viopath_ourLp;
 
@@ -123,8 +234,32 @@ enum viorc {
        viorc_openRejected = 0x0301
 };
 
-struct device;
+/*
+ * The structure of the events that flow between us and OS/400 for chario
+ * events.  You can't mess with this unless the OS/400 side changes too.
+ */
+struct viocharlpevent {
+       struct HvLpEvent event;
+       u32 reserved;
+       u16 version;
+       u16 subtype_result_code;
+       u8 virtual_device;
+       u8 len;
+       u8 data[VIOCHAR_MAX_DATA];
+};
+
+#define VIOCHAR_WINDOW         10
 
-extern struct device *iSeries_vio_dev;
+enum viocharsubtype {
+       viocharopen = 0x0001,
+       viocharclose = 0x0002,
+       viochardata = 0x0003,
+       viocharack = 0x0004,
+       viocharconfig = 0x0005
+};
+
+enum viochar_rc {
+       viochar_rc_ebusy = 1
+};
 
 #endif /* _ASM_POWERPC_ISERIES_VIO_H */