1.\" Copyright 2014 Garrett D'Amore <garrett@damore.org> 2.\" Redistribution and use in source and binary forms, with or without 3.\" modification, are permitted provided that the following conditions 4.\" are met: 5.\" 1. Redistributions of source code must retain the above copyright 6.\" notice, this list of conditions and the following disclaimer. 7.\" 2. Redistributions in binary form must reproduce the above copyright 8.\" notice, this list of conditions and the following disclaimer in the 9.\" documentation and/or other materials provided with the distribution. 10.\" 11.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS 12.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 13.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 14.\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 15.\" COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 16.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 17.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 18.\" USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 19.\" ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 20.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 21.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE 22.\" 23.Dd "Jan 10, 2020" 24.Dt ELXL 4D 25.Os 26.Sh NAME 27.Nm elxl 28.Nd 3Com Etherlink XL device driver 29.Sh SYNOPSIS 30.Pa /dev/elxl 31.Sh DESCRIPTION 32The 33.Nm 34driver provides support for the 3Com Etherlink XL 35family of Ethernet and Fast Ethernet PCI controllers. 36These are often known by their part numbers, most often 3c905 or 3c900 variants. 37.Lp 38The 3c905 devices generally support some form of 100 Mbps Ethernet, 39whereas the 3c900 devices usually only support 10 Mbps. 40Some devices support legacy media such as 10BASE-15, 10BASE-2, and even 4110BASE-FL. 42. 43Where applicable, the devices support auto-negotiation, both full and 44half duplex, etc. 45They also support full size MTUs (1500 bytes), even when used with VLANs. 46. 47.Lp 48The device driver supports the 49.Xr ieee802.3 7 50properties, which can be configured with 51.Xr dladm 8 . 52.Lp 53In addition, for devices with multiple external media ports, the driver 54supports a driver-specific 55.Xr dladm 8 56property called 57.Sy media , 58which can take one of the following values, depending on the available 59media options on the device: 60.Lp 61.Bl -tag -compact -offset indent -width Sy 62.It Sy mii 63Media Independent Interface (MII), also 100BASE-TX 64.It Sy tp-hdx 6510 Mbps twisted pair, half-duplex 66.It Sy tp-fdx 6710 Mbps twisted pair full-duplex 68.It Sy fx-hdx 69100BASE-FX (fiber), half-duplex 70.It Sy fx-hdx 71100BASE-FX (fiber), full-duplex 72.It Sy bnc 7310BASE-2 74.Pq BNC, aka Dq thin-net 75.It Sy aui 7610BASE-15 77.Pq aka Dq thick-net 78.It Sy fl-hdx 7910BASE-FL (fiber), half-duplex 80.It Sy fl-fdx 8110BASE-FL (fiber), full-duplex 82.El 83.Lp 84The specific media options available can be queried with the 85device-specific 86.Sy available_media 87.Xr dladm 8 88property. 89.Sh FILES 90.Bl -tag -width /dev/elxl 91.It Pa /dev/elxl 92Special character device. 93.El 94.Sh SEE ALSO 95.Xr dlpi 4P , 96.Xr pci 5 , 97.Xr ieee802.3 7 , 98.Xr dladm 8 , 99.Xr ifconfig 8 100.Rs 101.%T IEEE 802.3: Ethernet 102.%Q IEEE Standards Association 103.Re 104