1.\" $OpenBSD: jme.4,v 1.3 2009/06/05 06:05:06 naddy Exp $ 2.\" 3.\" Copyright (c) 2008 Jonathan Gray <jsg@openbsd.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: June 5 2009 $ 18.Dt JME 4 19.Os 20.Sh NAME 21.Nm jme 22.Nd JMicron JMC250/JMC260 10/100/Gigabit Ethernet device 23.Sh SYNOPSIS 24.Cd "jme* at pci?" 25.Cd "jmphy* at mii?" 26.Sh DESCRIPTION 27The 28.Nm 29driver supports PCI Express Ethernet adapters based on the JMicron 30JMC260 10/100 and JMC250 10/100/Gigabit Ethernet chips. 31.Pp 32The 33.Nm 34driver supports IPv4 receive IP/TCP/UDP checksum offload, IPv6 35receive TCP/UDP checksum offload and VLAN tag insertion and 36stripping. 37.Pp 38The following 39.Ar media 40types are supported: 41.Pp 42.Bl -tag -width autoselect -compact 43.It Cm autoselect 44Enable autoselection of the media type and options. 45.It Cm 10baseT 46Set 10Mbps operation. 47.It Cm 100baseTX 48Set 100Mbps (Fast Ethernet) operation. 49.It Cm 1000baseT 50Set 1000Mbps (Gigabit Ethernet) operation (some models only). 51.El 52.Sh SEE ALSO 53.Xr arp 4 , 54.Xr ifmedia 4 , 55.Xr intro 4 , 56.Xr jmphy 4 , 57.Xr netintro 4 , 58.Xr pci 4 , 59.Xr hostname.if 5 , 60.Xr ifconfig 8 61.Sh HISTORY 62The 63.Nm 64device driver first appeared in 65.Ox 4.5 . 66.Sh AUTHORS 67.An -nosplit 68The 69.Nm 70driver was written by 71.An Pyun YongHyeon 72for 73.Fx 74and ported to 75.Ox 76by 77.An Jonathan Gray 78.Aq jsg@openbsd.org . 79