diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/scsi/scsi.h | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index 8cbd95d04f3a..e35064db0b06 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -12,13 +12,20 @@ /* - * SCSI command lengths + * SCSI command lengths */ extern const unsigned char scsi_command_size[8]; #define COMMAND_SIZE(opcode) scsi_command_size[((opcode) >> 5) & 7] /* + * SCSI device types + */ + +#define MAX_SCSI_DEVICE_CODE 14 +extern const char *const scsi_device_types[MAX_SCSI_DEVICE_CODE]; + +/* * SCSI opcodes */ @@ -311,6 +318,42 @@ struct scsi_lun { #define SCSI_MLQUEUE_DEVICE_BUSY 0x1056 #define SCSI_MLQUEUE_EH_RETRY 0x1057 +/* + * Use these to separate status msg and our bytes + * + * These are set by: + * + * status byte = set from target device + * msg_byte = return status from host adapter itself. + * host_byte = set by low-level driver to indicate status. + * driver_byte = set by mid-level. + */ +#define status_byte(result) (((result) >> 1) & 0x1f) +#define msg_byte(result) (((result) >> 8) & 0xff) +#define host_byte(result) (((result) >> 16) & 0xff) +#define driver_byte(result) (((result) >> 24) & 0xff) +#define suggestion(result) (driver_byte(result) & SUGGEST_MASK) + +#define sense_class(sense) (((sense) >> 4) & 0x7) +#define sense_error(sense) ((sense) & 0xf) +#define sense_valid(sense) ((sense) & 0x80); + + +#define IDENTIFY_BASE 0x80 +#define IDENTIFY(can_disconnect, lun) (IDENTIFY_BASE |\ + ((can_disconnect) ? 0x40 : 0) |\ + ((lun) & 0x07)) + +/* + * SCSI command sets + */ + +#define SCSI_UNKNOWN 0 +#define SCSI_1 1 +#define SCSI_1_CCS 2 +#define SCSI_2 3 +#define SCSI_3 4 + /* * Here are some scsi specific ioctl commands which are sometimes useful. |