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authorStephen Rothwell <sfr@canb.auug.org.au>2007-10-11 14:59:54 +1000
committerPaul Mackerras <paulus@samba.org>2007-10-11 20:40:48 +1000
commit8251b4c481bca72568e9c1042ea11189838e5f6d (patch)
tree41991f93aec12592885ac33a5312dcf4024ebe5f /include
parent7465ce0db310d2fa29f721da7e3aacd1dad7090f (diff)
downloadop-kernel-dev-8251b4c481bca72568e9c1042ea11189838e5f6d.zip
op-kernel-dev-8251b4c481bca72568e9c1042ea11189838e5f6d.tar.gz
[POWERPC] iSeries: Move viodasd probing
This way we only have entries in the device tree for disks that actually exist. A slight complication is that disks may be attached to LPARs at runtime. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-powerpc/iseries/vio.h47
1 files changed, 47 insertions, 0 deletions
diff --git a/include/asm-powerpc/iseries/vio.h b/include/asm-powerpc/iseries/vio.h
index 2555dfd..f9ac0d0 100644
--- a/include/asm-powerpc/iseries/vio.h
+++ b/include/asm-powerpc/iseries/vio.h
@@ -51,6 +51,51 @@
*/
#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;
@@ -133,6 +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;
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