1.\" $NetBSD: enic.4,v 1.7 2017/02/18 22:39:00 wiz Exp $ 2.\" 3.\" Copyright (c) 2001, 2010 The NetBSD Foundation, Inc. 4.\" 5.\" This file is derived from work contributed by Microsoft Corporation. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.Dd February 17, 2017 29.Dt ENIC 4 30.Os 31.Sh NAME 32.Nm enic 33.Nd eMIPS ExtensibleNIC Ethernet interface driver 34.Sh SYNOPSIS 35.Cd "enic* at ebus0 addr ?" 36.Sh DESCRIPTION 37The 38.Nm 39interface provides access to an 40.Tn Ethernet 41network via the eMIPS builtin 42.Tn eNIC 43(Extensible Network Interface Controller - Ethernet) interface. 44.Pp 45Each of the host's network addresses 46is specified at boot time with an 47.Dv SIOCSIFADDR 48.Xr ioctl 2 . 49The 50.Nm 51interface employs the Address Resolution Protocol (ARP) described in 52.Xr arp 4 53to dynamically map between Internet and 54.Tn Ethernet 55addresses on the local network. 56.Pp 57Multicast Ethernet frames are unconditionally received and must be 58filtered in software. 59.Sh HARDWARE 60.Ss emips 61The 62.Tn ENIC 63interface is present on the BEE3 and Xilinx XUP boards. 64The interface speed is wired at 1Gbps. 65.Sh DIAGNOSTICS 66.Bl -diag 67.It "enic%d: enic_put: no mem?" 68The driver could not allocate a transmit buffer, packet was not sent. 69.It "enic%d: internal error" 70This and other messages are indicative of bad hardware or software 71driver coding errors. 72.El 73.Sh SEE ALSO 74.Xr arp 4 , 75.Xr emips/intro 4 , 76.Xr ifmedia 4 , 77.Xr inet 4 , 78.Xr ifconfig 8 79.Sh HISTORY 80.Nm 81driver first appeared in 82.Nx 6.0 . 83