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