.\" $NetBSD: esh.4,v 1.2 1998/05/17 16:46:06 kml 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. .\" 3. All advertising materials mentioning features or use of this software .\" must display the following acknowledgement: .\" This product includes software developed by the NetBSD .\" Foundation, Inc. and its contributors. .\" 4. Neither the name of The NetBSD Foundation nor the names of its .\" contributors may be used to endorse or promote products derived .\" from this software without specific prior written permission. .\" .\" 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 NetBSD .Sh NAME .Nm esh .Nd device driver RoadRunner-based HIPPI interfaces .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 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 NetBSD 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 .Pp .\" .Sh OPTIONS .Sh MEDIA SELECTION Media selection is not yet supported for this device. .\" .Sh DIAGNOSTICS .Sh BUGS The card must be tuned for proper and efficient DMA operation. The appropriate values vary based on the system. The eshconfig(8) program is used for this. .Sh SEE ALSO .Xr eshconfig 8 , .Xr ifconfig 8 , .Xr intro 4 , .Xr route 8 , .Xr pci 4