Tribblix: manual page: scsi

SCSI_INQUIRY(9S) Data Structures for Drivers SCSI_INQUIRY(9S)

NAME

scsi_inquiry - SCSI inquiry structure

SYNOPSIS

#include <sys/scsi/scsi.h>

INTERFACE LEVEL

illumos DDI specific (illumos DDI).

DESCRIPTION

The scsi_inquiry structure contains 36 required bytes, followed by a
variable number of vendor-specific parameters. Bytes 59 through 95,
if returned, are reserved for future standardization. This structure
is part of scsi_device(9S) structure and typically filled in by
scsi_probe(9F).

STRUCTURE MEMBERS

Lines that start with an 'X' will be deleted before submission;
they are being classified as unstable at this time.

uchar_t inq_dtype; /* Periph. qualifier, dev. type */
uchar_t inq_rmb :1; /* Removable media */
uchar_t inq_qual :7; /* Dev. type qualifier */
uchar_t inq_iso :2; /* ISO version */
uchar_t inq_ecma :3; /* EMCA version */
uchar_t inq_ansi :3; /* ANSII version */
uchar_t inq_aenc :1; /* Async event notif. cap. */
uchar_t inq_trmiop :1; /* Supports TERMINATE I/O PROC msg */
uchar_t inq_normaca :1; /* setting NACA bit supported */
uchar_t inq_hisup :1; /* hierarchical addressing model */
uchar_t inq_rdf :4; /* Response data format */
uchar_t inq_len /* Additional length */
uchar_t inq_sccs :1; /* embedded storage array */
Xuchar_t inq_acc :1; /* access controls coordinator */
uchar_t inq_tpgse :1; /* explicit asymmetric lun access */
uchar_t inq_tpgsi :1; /* implicit asymmetric lun access */
Xuchar_t inq_3pc :1; /* third-party copy */
Xuchar_t inq_protect :1; /* supports protection information */
uchar_t inq_bque :1; /* basic queueing */
uchar_t inq_encserv :1; /* embedded enclosure services */
uchar_t inq_dualp :1; /* dual port device */
uchar_t inq_mchngr :1; /* embedded/attached to medium chngr */
uchar_t inq_addr16 :1; /* SPI: supports 16 bit wide SCSI addr */
uchar_t inq_wbus16 :1; /* SPI: Supports 16 bit wide data xfers */
uchar_t inq_sync :1; /* SPI: Supports synchronous data xfers */
uchar_t inq_linked :1; /* Supports linked commands */
uchar_t inq_cmd_que :1; /* Supports command queueing */
uchar_t inq_sftre :1; /* Supports Soft Reset option */
char inq_vid[8]; /* Vendor ID */
char inq_pid[16]; /* Product ID */
char inq_revision[4]; /* Revision level */
uchar_t inq_clk :2; /* SPI3 clocking */
uchar_t inq_qas :1; /* SPI3: quick arb sel */
uchar_t inq_ius :1; /* SPI3: information units */

inq_dtype identifies the type of device. Bits 0 - 4 represent the
Peripheral Device Type and bits 5 - 7 represent the Peripheral
Qualifier. The following values are appropriate for Peripheral Device
Type field:

DTYPE_DIRECT
Direct-access device (for example, magnetic
disk).

DTYPE_SEQUENTIAL
Sequential-access device (for example, magnetic
tape).

DTYPE_PRINTER
Printer device.

DTYPE_PROCESSOR
Processor device.

DTYPE_WORM
Write-once device (for example, some optical
disks).

DTYPE_RODIRECT
CD-ROM device.

DTYPE_SCANNER
Scanner device.

DTYPE_OPTICAL
Optical memory device (for example, some optical
disks).

DTYPE_CHANGER
Medium Changer device (for example, jukeboxes).

DTYPE_COMM
Communications device.

DTYPE_ARRAY_CTRL
Array controller device (for example, RAID).

DTYPE_ESI
Enclosure services device.

DTYPE_RBC
Simplified direct-access device.

DTYPE_OCRW
Optical card reader/writer device.

DTYPE_BRIDGE
Bridge.

DTYPE_OSD
Object-based storage device.

DTYPE_UNKNOWN
Unknown or no device type.

DTYPE_MASK
Mask to isolate Peripheral Device Type field.

The following values are appropriate for the Peripheral Qualifier
field:

DPQ_POSSIBLE
The specified peripheral device type is currently
connected to this logical unit. If the target cannot
determine whether or not a physical device is
currently connected, it uses this peripheral
qualifier when returning the INQUIRY data. This
peripheral qualifier does not imply that the device
is ready for access by the initiator.

DPQ_SUPPORTED
The target is capable of supporting the specified
peripheral device type on this logical unit.
However, the physical device is not currently
connected to this logical unit.

DPQ_NEVER
The target is not capable of supporting a physical
device on this logical unit. For this peripheral
qualifier, the peripheral device type shall be set
to DTYPE_UNKNOWN to provide compatibility with
previous versions of SCSI. For all other peripheral
device type values, this peripheral qualifier is
reserved.

DPQ_VUNIQ
This is a vendor-unique qualifier.

DPQ_MASK
Mask to isolate Peripheral Qualifier field.

DTYPE_NOTPRESENT is the peripheral qualifier DPQ_NEVER and the
peripheral device type DTYPE_UNKNOWN combined.

inq_rmb, if set, indicates that the medium is removable.

inq_qual is a device type qualifier.

inq_iso indicates ISO version.

inq_ecma indicates ECMA version.

inq_ansi indicates ANSI version.

inq_aenc, if set, indicates that the device supports asynchronous
event notification capability as defined in SCSI-2 specification.

inq_trmiop, if set, indicates that the device supports the TERMINATE
I/O PROCESSmessage.

inq_normaca, if set, indicates that the device supports setting the
NACA bit to 1 in CDB.

inq_hisip, if set, indicates the SCSI target device uses the
hierarchical addressing model to assign LUNs to logical units.

inq_rdf, if set, indicates the INQUIRY data response data format:
"RDF_LEVEL0" means that this structure complies with the SCSI-1 spec,
"RDF_CCS" means that this structure complies with the CCS pseudo-
spec, and "RDF_SCSI2" means that the structure complies with the
SCSI-2/3 spec.

inq_len, if set, is the additional length field that specifies the
length in bytes of the parameters.

inq_sccs, if set, indicates the target device contains an embedded
storage array controller component.

inq_acc, if set, indicates that the logical unit contains an access
controls coordinator (this structure member will be deleted before
submission. It is being classified as unstable at this time).

inq_tpgse, if set, indicates that implicit asymmetric logical unit
access is supported.

inq_tpgsi, if set, indicates that explicit asymmetric logical unit
access is supported.

inq_3pc, if set, indicates that the SCSI target device supports
third-party copy commands (this structure member will be deleted
before submission. It is being classified as unstable at this time).

inq_protect, if set, indicates that the logical unit supports
protection information (this structure member will be deleted before
submission. It is being classified as unstable at this time).

inq_bque, if set, indicates that the logical unit supports basic task
management.

inq_encserv, if set, indicates that the device contains an embedded
enclosure services component (ses(4D)).

inq_dualp, if set, indicates that the SCSI target device supports two
or more ports.

inq_mchngr, if set, indicates that the SCSI target device supports
commands to control an attached media changer.

inq_addr16, if set, indicates that the device supports 16-bit wide
SCSI addresses.

inq_wbus16, if set, indicates that the device supports 16-bit wide
data transfers.

inq_sync, if set, indicates that the device supports synchronous data
transfers.

inq_linked, if set, indicates that the device supports linked
commands for this logical unit.

inq_cmdque, if set, indicates that the device supports tagged command
queueing.

inq_sftre, if reset, indicates that the device responds to the RESET
condition with the hard RESET alternative. If this bit is set, this
indicates that the device responds with the soft RESET alternative.

inq_vid contains eight bytes of ASCII data identifying the vendor of
the product.

inq_pid contains sixteen bytes of ASCII data as defined by the
vendor.

inq_revision contains four bytes of ASCII data as defined by the
vendor.

inq_clk clocking of the SPI3 target port.

inq_gas the SPI3 target port supports quick arbitration and
selection.

inq_ius the SPI3 target device supports information unit transfers.

NAME

SYNOPSIS

INTERFACE LEVEL

DESCRIPTION

STRUCTURE MEMBERS

SEE ALSO