#define COMMAND_SIZE(opcode) scsi_command_size[((opcode) >> 5) & 7]
/*
- * SCSI device types
+ * Special value for scanning to specify scanning or rescanning of all
+ * possible channels, (target) ids, or luns on a given shost.
*/
-
-#define MAX_SCSI_DEVICE_CODE 14
-extern const char *const scsi_device_types[MAX_SCSI_DEVICE_CODE];
+#define SCAN_WILD_CARD ~0
/*
* SCSI opcodes
#define FORMAT_UNIT 0x04
#define READ_BLOCK_LIMITS 0x05
#define REASSIGN_BLOCKS 0x07
+#define INITIALIZE_ELEMENT_STATUS 0x07
#define READ_6 0x08
#define WRITE_6 0x0a
#define SEEK_6 0x0b
#define READ_10 0x28
#define WRITE_10 0x2a
#define SEEK_10 0x2b
+#define POSITION_TO_ELEMENT 0x2b
#define WRITE_VERIFY 0x2e
#define VERIFY 0x2f
#define SEARCH_HIGH 0x30
#define PERSISTENT_RESERVE_IN 0x5e
#define PERSISTENT_RESERVE_OUT 0x5f
#define REPORT_LUNS 0xa0
+#define MAINTENANCE_IN 0xa3
#define MOVE_MEDIUM 0xa5
+#define EXCHANGE_MEDIUM 0xa6
#define READ_12 0xa8
#define WRITE_12 0xaa
#define WRITE_VERIFY_12 0xae
#define WRITE_LONG_2 0xea
#define READ_16 0x88
#define WRITE_16 0x8a
+#define VERIFY_16 0x8f
#define SERVICE_ACTION_IN 0x9e
/* values for service action in */
#define SAI_READ_CAPACITY_16 0x10
+/* values for maintenance in */
+#define MI_REPORT_TARGET_PGS 0x0a
+/* Values for T10/04-262r7 */
+#define ATA_16 0x85 /* 16-byte pass-thru */
+#define ATA_12 0xa1 /* 12-byte pass-thru */
/*
* SCSI Architecture Model (SAM) Status codes. Taken from SAM-3 draft
#define RESERVATION_CONFLICT 0x0c
#define COMMAND_TERMINATED 0x11
#define QUEUE_FULL 0x14
+#define ACA_ACTIVE 0x18
+#define TASK_ABORTED 0x20
-#define STATUS_MASK 0x3e
+#define STATUS_MASK 0xfe
/*
* SENSE KEYS
* - treated as TYPE_DISK */
#define TYPE_MEDIUM_CHANGER 0x08
#define TYPE_COMM 0x09 /* Communications device */
-#define TYPE_ENCLOSURE 0x0d /* Enclosure Services Device */
#define TYPE_RAID 0x0c
+#define TYPE_ENCLOSURE 0x0d /* Enclosure Services Device */
+#define TYPE_RBC 0x0e
#define TYPE_NO_LUN 0x7f
+/* Returns a human-readable name for the device */
+extern const char * scsi_device_type(unsigned type);
+
/*
* standard mode-select header prepended to all mode-select commands
*/
struct ccs_modesel_head {
- u8 _r1; /* reserved */
- u8 medium; /* device-specific medium type */
- u8 _r2; /* reserved */
- u8 block_desc_length; /* block descriptor length */
- u8 density; /* device-specific density code */
- u8 number_blocks_hi; /* number of blocks in this block desc */
- u8 number_blocks_med;
- u8 number_blocks_lo;
- u8 _r3;
- u8 block_length_hi; /* block length for blocks in this desc */
- u8 block_length_med;
- u8 block_length_lo;
+ __u8 _r1; /* reserved */
+ __u8 medium; /* device-specific medium type */
+ __u8 _r2; /* reserved */
+ __u8 block_desc_length; /* block descriptor length */
+ __u8 density; /* device-specific density code */
+ __u8 number_blocks_hi; /* number of blocks in this block desc */
+ __u8 number_blocks_med;
+ __u8 number_blocks_lo;
+ __u8 _r3;
+ __u8 block_length_hi; /* block length for blocks in this desc */
+ __u8 block_length_med;
+ __u8 block_length_lo;
};
/*
* ScsiLun: 8 byte LUN.
*/
struct scsi_lun {
- u8 scsi_lun[8];
+ __u8 scsi_lun[8];
};
/*
#define EXTENDED_SDTR 0x01
#define EXTENDED_EXTENDED_IDENTIFY 0x02 /* SCSI-I only */
#define EXTENDED_WDTR 0x03
+#define EXTENDED_PPR 0x04
+#define EXTENDED_MODIFY_BIDI_DATA_PTR 0x05
#define SAVE_POINTERS 0x02
#define RESTORE_POINTERS 0x03
#define DISCONNECT 0x04
#define INITIATOR_ERROR 0x05
-#define ABORT 0x06
+#define ABORT_TASK_SET 0x06
#define MESSAGE_REJECT 0x07
#define NOP 0x08
#define MSG_PARITY_ERROR 0x09
#define LINKED_CMD_COMPLETE 0x0a
#define LINKED_FLG_CMD_COMPLETE 0x0b
-#define BUS_DEVICE_RESET 0x0c
-
+#define TARGET_RESET 0x0c
+#define ABORT_TASK 0x0d
+#define CLEAR_TASK_SET 0x0e
#define INITIATE_RECOVERY 0x0f /* SCSI-II only */
#define RELEASE_RECOVERY 0x10 /* SCSI-II only */
-
+#define CLEAR_ACA 0x16
+#define LOGICAL_UNIT_RESET 0x17
#define SIMPLE_QUEUE_TAG 0x20
#define HEAD_OF_QUEUE_TAG 0x21
#define ORDERED_QUEUE_TAG 0x22
+#define IGNORE_WIDE_RESIDUE 0x23
+#define ACA 0x24
+#define QAS_REQUEST 0x55
+
+/* Old SCSI2 names, don't use in new code */
+#define BUS_DEVICE_RESET TARGET_RESET
+#define ABORT ABORT_TASK_SET
/*
* Host byte codes
#define DID_PASSTHROUGH 0x0a /* Force command past mid-layer */
#define DID_SOFT_ERROR 0x0b /* The low level driver just wish a retry */
#define DID_IMM_RETRY 0x0c /* Retry without decrementing retry count */
+#define DID_REQUEUE 0x0d /* Requeue command (no immediate retry) also
+ * without decrementing the retry count */
#define DRIVER_OK 0x00 /* Driver status */
/*
* host_byte = set by low-level driver to indicate status.
* driver_byte = set by mid-level.
*/
-#define status_byte(result) (((result) >> 1) & 0x1f)
+#define status_byte(result) (((result) >> 1) & 0x7f)
#define msg_byte(result) (((result) >> 8) & 0xff)
#define host_byte(result) (((result) >> 16) & 0xff)
#define driver_byte(result) (((result) >> 24) & 0xff)
#define sense_error(sense) ((sense) & 0xf)
#define sense_valid(sense) ((sense) & 0x80);
+/*
+ * default timeouts
+*/
+#define FORMAT_UNIT_TIMEOUT (2 * 60 * 60 * HZ)
+#define START_STOP_TIMEOUT (60 * HZ)
+#define MOVE_MEDIUM_TIMEOUT (5 * 60 * HZ)
+#define READ_ELEMENT_STATUS_TIMEOUT (5 * 60 * HZ)
+#define READ_DEFECT_DATA_TIMEOUT (60 * HZ )
+
#define IDENTIFY_BASE 0x80
#define IDENTIFY(can_disconnect, lun) (IDENTIFY_BASE |\
((lun) & 0x07))
/*
- * SCSI command sets
+ * struct scsi_device::scsi_level values. For SCSI devices other than those
+ * prior to SCSI-2 (i.e. over 12 years old) this value is (resp[2] + 1)
+ * where "resp" is a byte array of the response to an INQUIRY. The scsi_level
+ * variable is visible to the user via sysfs.
*/
#define SCSI_UNKNOWN 0
#define SCSI_1 1
#define SCSI_1_CCS 2
#define SCSI_2 3
-#define SCSI_3 4
+#define SCSI_3 4 /* SPC */
+#define SCSI_SPC_2 5
+#define SCSI_SPC_3 6
/*
* INQ PERIPHERAL QUALIFIERS
/* Used to obtain the PCI location of a device */
#define SCSI_IOCTL_GET_PCI 0x5387
+/* Pull a u32 out of a SCSI message (using BE SCSI conventions) */
+static inline __u32 scsi_to_u32(__u8 *ptr)
+{
+ return (ptr[0]<<24) + (ptr[1]<<16) + (ptr[2]<<8) + ptr[3];
+}
+
#endif /* _SCSI_SCSI_H */
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