Document presto(4)

3 files changed, 74 insertions, 3 deletions

diff --git a/share/man/man4/man4.sparc/Makefile b/share/man/man4/man4.sparc/Makefile
index 92958a1d44a..954a13f3cdd 100644
--- a/share/man/man4/man4.sparc/Makefile
+++ b/share/man/man4/man4.sparc/Makefile
@@ -1,10 +1,10 @@
-#	$OpenBSD: Makefile,v 1.30 2003/03/09 02:39:27 miod Exp $
+#	$OpenBSD: Makefile,v 1.31 2003/04/13 23:15:46 miod Exp $
 #	from: @(#)Makefile	8.2 (Berkeley) 2/16/94
 
 MAN=	agten.4 audioamd.4 audiocs.4 autoconf.4 be.4 bwtwo.4 cgtwo.4 \
 	cgthree.4 cgfour.4 cgsix.4 cgeight.4 cgtwelve.4 cgfourteen.4 \
 	daadio.4 esp.4 fd.4 fga.4 ie.4 intro.4 le.4 led.4 magma.4 mem.4 \
-	openprom.4 pnozz.4 qe.4 qec.4 scf.4 si.4 spif.4 sw.4 tctrl.4 \
+	openprom.4 pnozz.4 presto.4 qe.4 qec.4 scf.4 si.4 spif.4 sw.4 tctrl.4 \
 	tcx.4 tvtwo.4 vigra.4 xbox.4 xd.4 xy.4 zs.4 zx.4
 MLINKS=	fd.4 fdc.4 \
 	fga.4 fvme.4 \
diff --git a/share/man/man4/man4.sparc/intro.4 b/share/man/man4/man4.sparc/intro.4
index 458e8495c32..48dc8872d70 100644
--- a/share/man/man4/man4.sparc/intro.4
+++ b/share/man/man4/man4.sparc/intro.4
@@ -1,4 +1,4 @@
-.\"     $OpenBSD: intro.4,v 1.32 2003/03/10 11:35:06 jmc Exp $
+.\"     $OpenBSD: intro.4,v 1.33 2003/04/13 23:15:46 miod Exp $
 .\"	$NetBSD: intro.4,v 1.5 1998/02/06 06:07:00 perry Exp $
 .\"
 .\" Copyright (c) 1996 Jonathan Stone.
@@ -154,6 +154,8 @@ Magma serial/parallel communication boards.
 Sun Open boot PROM (what became IEEE 1275) configuration driver.
 .It Xr pnozz 4
 Weitek Power9100 frame buffer found on Tadpole SPARCbook 3GS and 3GX.
+.It Xr presto 4
+Prestoserve NVRAM.
 .It Xr qe 4
 Quad 10BaseT SBus Ethernet controller.
 .It Xr qec 4
diff --git a/share/man/man4/man4.sparc/presto.4 b/share/man/man4/man4.sparc/presto.4
new file mode 100644
index 00000000000..ea8d1182bfc
--- /dev/null
+++ b/share/man/man4/man4.sparc/presto.4
@@ -0,0 +1,69 @@
+.\"	$OpenBSD: presto.4,v 1.1 2003/04/13 23:15:46 miod Exp $
+.\" Copyright (c) 2003, Miodrag Vallat
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+.\" DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+.\" ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd April 13, 2003
+.Dt PRESTO 4 sparc
+.Os
+.Sh NAME
+.Nm presto
+.Nd Prestoserve battery-backed memory
+.Sh SYNOPSIS
+.Cd presto* at sbus? slot ? offset ?
+.Sh DESCRIPTION
+The
+.Tn Legato
+Prestoserve NVRAM cards
+used to be part of the
+.Dq NFS accelerator
+product, which used the cards memory as an NFS-dedicated cache, increasing
+performance of NFS servers exporting filesystem as NFS protocol, version 2.
+.Pp
+The
+.Nm
+driver does not attempt to achieve such a behaviour, which is questionable
+with the advent of NFS protocol, version 3.
+.Pp
+Instead, it will provide direct access to the NVRAM, as a block device.
+.Sh FILES
+.Bl -tag -width /dev/rprestoXXXXX -compact
+.It Pa /dev/presto Ns Ar u Ns Ar p
+block mode Prestoserve card number
+.Ar u ,
+partition
+.Ar p
+.It Pa /dev/rpresto Ns Ar u Ns Ar p
+raw mode Prestoserve card number
+.Ar u ,
+partition
+.Ar p
+.El
+.Sh SEE ALSO
+.Xr intro 4 ,
+.Xr disklabel 5 ,
+.Xr MAKEDEV 8 ,
+.Xr disklabel 8
+.Sh BUGS
+The NVSIMM flavour, designed for SPARCstation models 10 and 20, is not
+supported yet.