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authorMike Miller (OS Dev) <mikem@beardog.cca.cpqcorp.net>2006-09-30 23:27:23 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-01 00:39:20 -0700
commit00988a3514bbc0cce781c067cf52559741d88b80 (patch)
treee0a844ecd9351c67dd9e73e8e6aafd064fa43137 /drivers/block/cciss_cmd.h
parent82b0547cfae1fb2ee26cad588f6d49a347d24740 (diff)
[PATCH] cciss: support for >2TB logical volumes
Add support for logical volumes >2TB. All SAS/SATA controllers support large volumes. Signed-off-by: Mike Miller <mike.miller@hp.com> Cc: Jens Axboe <axboe@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/block/cciss_cmd.h')
-rw-r--r--drivers/block/cciss_cmd.h33
1 files changed, 28 insertions, 5 deletions
diff --git a/drivers/block/cciss_cmd.h b/drivers/block/cciss_cmd.h
index 53fea549ba8..4af7c4c0c7a 100644
--- a/drivers/block/cciss_cmd.h
+++ b/drivers/block/cciss_cmd.h
@@ -118,11 +118,34 @@ typedef struct _ReadCapdata_struct
BYTE block_size[4]; // Size of blocks in bytes
} ReadCapdata_struct;
-// 12 byte commands not implemented in firmware yet.
-// #define CCISS_READ 0xa8 // Read(12)
-// #define CCISS_WRITE 0xaa // Write(12)
- #define CCISS_READ 0x28 // Read(10)
- #define CCISS_WRITE 0x2a // Write(10)
+#define CCISS_READ_CAPACITY_16 0x9e /* Read Capacity 16 */
+
+/* service action to differentiate a 16 byte read capacity from
+ other commands that use the 0x9e SCSI op code */
+
+#define CCISS_READ_CAPACITY_16_SERVICE_ACT 0x10
+
+typedef struct _ReadCapdata_struct_16
+{
+ BYTE total_size[8]; /* Total size in blocks */
+ BYTE block_size[4]; /* Size of blocks in bytes */
+ BYTE prot_en:1; /* protection enable bit */
+ BYTE rto_en:1; /* reference tag own enable bit */
+ BYTE reserved:6; /* reserved bits */
+ BYTE reserved2[18]; /* reserved bytes per spec */
+} ReadCapdata_struct_16;
+
+/* Define the supported read/write commands for cciss based controllers */
+
+#define CCISS_READ_10 0x28 /* Read(10) */
+#define CCISS_WRITE_10 0x2a /* Write(10) */
+#define CCISS_READ_16 0x88 /* Read(16) */
+#define CCISS_WRITE_16 0x8a /* Write(16) */
+
+/* Define the CDB lengths supported by cciss based controllers */
+
+#define CDB_LEN10 10
+#define CDB_LEN16 16
// BMIC commands
#define BMIC_READ 0x26