OpenBSD-4.6/share/man/man4/osiop.4

.\"	$OpenBSD: osiop.4,v 1.9 2009/02/17 22:33:37 miod Exp $
.\"	$NetBSD: osiop.4,v 1.2 2001/09/22 01:44:55 wiz Exp $
.\"
.\" Copyright (c) 2001 Izumi Tsutsui.  All rights reserved.
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.Dd $Mdocdate: February 17 2009 $
.Dt OSIOP 4
.Os
.Sh NAME
.Nm osiop
.Nd Symbios/NCR 53C710 SCSI driver
.Sh SYNOPSIS
.Cd "osiop* at gsc? irq 9                  " Pq "hppa"
.Cd "osiop0 at mc0 offset 0x47000 ipl 2    " Pq "mvme68k"
.Cd "osiop0 at pcctwo0 offset 0x47000 ipl 2" Pq "mvme68k/mvme88k"
.Cd "scsibus* at osiop?"
.Sh DESCRIPTION
The
.Nm
driver provides support for the
.Tn Symbios/NCR
53C710
.Tn SCSI
controller chip.
.Pp
The
.Tn Symbios/NCR
53C700
.Tn SCSI
controller is handled by the
.Xr oosiop 4
driver, while the
.Tn Symbios/NCR
53C8xx
.Tn PCI
.Tn SCSI
host adapters are handled by the
.Xr siop 4
driver.
.Sh CONFIGURATION
The
.Nm
driver supports the following
.Sy flags
for use in
.Xr config 8
files:
.Pp
.Bl -tag -compact -width "bits 8-15:"
.It bits 0-7 :
disable disconnect/reselect for the corresponding
.Tn SCSI
target
.It bits 8-15 :
disable synchronous negotiation for
.Tn SCSI
target
.It bits 16 :
disable DMA interrupts
.El
.Pp
.Qq Target
is synonymous with
.Tn SCSI
ID number.
.Pp
Note that
.Tn SCSI
tape drives should be allowed to perform disconnect/reselect or performance
will suffer.
.Sh SEE ALSO
.Xr cd 4 ,
.Xr ch 4 ,
.Xr intro 4 ,
.Xr oosiop 4 ,
.Xr scsi 4 ,
.Xr sd 4 ,
.Xr siop 4 ,
.Xr ss 4 ,
.Xr st 4 ,
.Xr uk 4
.Pp
.Pa http://www.lsilogic.com/
.Sh HISTORY
The
.Nm
driver first appeared in
.Nx 1.6 .
.Pp
The original
.Tn NCR
53C710
driver appeared in
.Nx 1.0
amiga port, and
.An Izumi Tsutsui Aq tsutsui@ceres.dti.ne.jp
modified the driver and made it machine-independent.