87 lines
3.3 KiB
Groff
87 lines
3.3 KiB
Groff
.\" $NetBSD: esh.4,v 1.10 2008/04/30 13:10:54 martin Exp $
|
|
.\"
|
|
.\" Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" This code is derived from software contributed to The NetBSD Foundation
|
|
.\" by Kevin Lahey of the Numerical Aerospace Simulation Facility,
|
|
.\" NASA Ames Research Center.
|
|
.\"
|
|
.\" 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
.\" ``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 FOUNDATION OR CONTRIBUTORS
|
|
.\" 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 January 28, 1998
|
|
.Dt ESH 4
|
|
.Os
|
|
.Sh NAME
|
|
.Nm esh
|
|
.Nd RoadRunner-based HIPPI interfaces device driver
|
|
.Sh SYNOPSIS
|
|
.Cd "esh* at pci? dev ? function ?"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
device driver supports the Essential Communications RoadRunner-based
|
|
HIPPI interfaces. With some modifications, the driver could be
|
|
made to support the Gigabit Ethernet card based on the same chip.
|
|
.Pp
|
|
The driver supports both a normal network interface and a raw
|
|
HIPPI Framing Protocol (HIPPI-FP) device.
|
|
The HIPPI-FP interface is accessed via the
|
|
.Pa /dev/esh Ns Sy N/ulp Ns Sy N
|
|
set of devices. There are 255 available Upper Layer Protocols
|
|
in FP; these are selectable via the various device entries.
|
|
.Pp
|
|
HIPPI is an 800-megabit/sec networking technology which supports
|
|
extremely large packet sizes. In order to efficiently use this
|
|
network, the kernel should be configured with extra mbufs, and
|
|
the default socket buffer size should be increased to at least
|
|
192KB, regardless of the expected bandwidth-delay product of the
|
|
network.
|
|
.Pp
|
|
HIPPI ARP is not widely used, and the
|
|
.Nx
|
|
stack does not support it
|
|
(yet). In order to define the mappings between IP addresses and
|
|
ifields (the HIPPI MAC addresses), the administrator must make
|
|
link-layer entries in the routing table using the
|
|
.Xr route 8
|
|
command:
|
|
.Bd -unfilled -offset indent
|
|
route add -interface 129.99.154.101 -llinfo -link esh0:3.0.0.65
|
|
.Ed
|
|
.\" .Sh OPTIONS
|
|
.Sh MEDIA SELECTION
|
|
Media selection is not yet supported for this device.
|
|
.\" .Sh DIAGNOSTICS
|
|
.Sh SEE ALSO
|
|
.Xr intro 4 ,
|
|
.Xr pci 4 ,
|
|
.Xr eshconfig 8 ,
|
|
.Xr ifconfig 8 ,
|
|
.Xr route 8
|
|
.Sh BUGS
|
|
The card must be tuned for proper and efficient DMA operation.
|
|
The appropriate values vary based on the system.
|
|
The
|
|
.Xr eshconfig 8
|
|
program is used for this.
|