Tribblix: manual page: scsi_get_device_type

SCSI_GET_DEVICE_TYPE_STRING(9F) Kernel Functions for Drivers

NAME

scsi_get_device_type_string - look up per-device-type, returning
matching information string

SYNOPSIS

#include <sys/scsi/scsi.h>

char *scsi_get_device_type_string(char *prop_name,
dev_info_t *dip, struct scsi_device *devp);

INTERFACE LEVEL

illumos DDI specific (illumos DDI).

PARAMETERS

prop_name
Name of string array property that contains a list of
paired device-type information.

dip
Pointer to the device info node for this HBA driver.

devp
Pointer to a scsi_device(9S) structure of the target.

DESCRIPTION

The scsi_get_device_type_string() function looks up the prop_name
property, which can be specified in the HBA's driver.conf(5)file.
This property allows specification of per-device-type information.
The syntax for prop_name in a driver.conf(5) file is:

The formal syntax is:

prop_name = <duplet> [, <duplet> *];

where:

<duplet> := "<vid+pid>", "<information"

The string <vid+pid> is returned by the device on a SCSI inquiry
command. This string can contain any character in the range
0x20-0x7e. Characters such as double quote (") or single quote ('),
which are not permitted in property value strings, are represented by
their octal equivalent (for example, \042 and \047). Trailing spaces
can be truncated.

For example:

scsi_vhci_failover_override =
"STK FLEXLINE 400", "f_asym_lsi",
"SUN T4", "f_tpgs";;

The scsi_get_device_type_string() function searches the list of
duplets for a matching INQUIRY string. If a match is found,
scsi_get_device_type_string returns a copy of the <information>
string. The meaning of the returned <information> string is
determined by the caller.

RETURN VALUES

scsi_get_device_type_string() returns a copy of the matching
<information> string, or if no match is found, NULL is returned.
When a non-NULL value is returned, the caller is responsible for
freeing the <information> string via:

kmem_free(info, strlen(info) + 1);

CONTEXT

This function can be called from kernel or interrupt context.