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.\" Common Development and Distribution License ("CDDL"), version 1.0.
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.\" 1.0 of the CDDL.
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.\" Copyright (c) 2017, Joyent, Inc.
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.Dd Apr 18, 2017
.Dt SCSI_HBA_IPORT_UNIT_ADDRESS 9F
.Os
.Sh NAME
.Nm scsi_hba_iport_unit_address
.Nd Get the unit address of an iport
.Sh SYNOPSIS
.In sys/scsi/scsi.h
.Ft "char *"
.Fo scsi_hba_iport_unit_address
.Fa "dev_info_t *dip"
.Fc
.Sh INTERFACE LEVEL
.Sy Evolving -
This interface is still evolving in illumos.
API and ABI stability is
not guaranteed.
.Sh PARAMETERS
.Bl -tag -width Fa
.It Fa dip
Pointer to
.Vt dev_info
structure.
.El
.Sh DESCRIPTION
The
.Fn scsi_hba_iport_unit_address
function is used to obtain the unit address of an iport.
For more information on iports, see
.Xr iport 9 .
.Pp
This function can be used to determine whether or not a device node in
the tree is an iport.
If the device node corresponds to an iport, then
the unit address used when it was created either through
.Xr scsi_hba_iport_register 9F
or
.Xr scsi_hba_iportmap_iport_add 9F
will be returned.
.Sh CONTEXT
The
.Fn scsi_hba_iport_unit_address
function may be called in
.Sy user ,
.Sy kernel ,
or
.Sy interrupt
context.
.Sh RETURN VALUES
If
.Fa dip
is an iport, then the unit address string the device was registered with
is returned.
Otherwise,
.Dv NULL
is returned.
.Sh SEE ALSO
.Xr iport 9 ,
.Xr iportmap 9 ,
.Xr scsi_hba_iport_register 9F ,
.Xr scsi_hba_iportmap_iport_add 9F