diff options
| author | Mike Miller (OS Dev) <mikem@beardog.cca.cpqcorp.net> | 2006-09-30 23:27:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-01 00:39:20 -0700 |
| commit | 00988a3514bbc0cce781c067cf52559741d88b80 (patch) | |
| tree | e0a844ecd9351c67dd9e73e8e6aafd064fa43137 /drivers/block/cciss_cmd.h | |
| parent | 82b0547cfae1fb2ee26cad588f6d49a347d24740 (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.h | 33 |
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 |