.\" $OpenBSD: mx.4,v 1.5 1999/06/29 02:43:13 jason Exp $ .\" .\" Copyright (c) 1997, 1998 .\" Bill Paul . All rights reserved. .\" .\" 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 Bill Paul. .\" 4. Neither the name of the author nor the names of any co-contributors .\" may be used to endorse or promote products derived from this software .\" without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD .\" 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. .\" .\" $FreeBSD: mx.4,v 1.4 1999/05/28 18:43:19 wpaul Exp $ .\" .Dd November 5, 1998 .Dt MX 4 .Os .Sh NAME .Nm mx .Nd Macronix 98713/98715/98725 fast ethernet device driver .Sh SYNOPSIS .Cd "mx* at pci? dev ? function ?" .Sh DESCRIPTION The .Nm mx driver provides support for PCI ethernet adapters and embedded controllers based on the Macronix 98713, 98713A, 98715, 98715A and 98725 fast ethernet controller chips. This includes the NDC Communications SOHOware SFA110, the SVEC PN102-TX fast ethernet card, and various other adapters. The .Nm mx driver also supports the Lite-On 82c115 PNIC II chip, which is actually similiar in design to the Macronix 98715A with the addition of wake on LAN support. Supported PNIC II cards include the LinkSys LNE100TX Version 2. .Pp The Macronix chips use bus master DMA and are designed to be DEC 'tulip' workalikes. The original 98713 had an MII bus for controlling an external PHY; however, the 98713A and up use an internal transceiver with NWAY support. The Macronix parts are advertised as being register compatible with the DEC 21x4x controllers. All of the Macronix controllers support both 10 and 100Mbps speeds in either full or half duplex. .Pp The .Nm driver supports the following media types: .Pp .Bl -tag -width xxxxxxxxxxxxxxxxxxxx .It autoselect Enable autoselection of the media type and options. The user can manually override the autoselected mode by adding media options to the appropriate .Pa /etc/hostname.mxX file. .It 10baseT/UTP Set 10Mbps operation. The .Ar mediaopt option can also be used to select either .Ar full-duplex or .Ar half-duplex modes. .It 100baseTX Set 100Mbps (fast ethernet) operation. The .Ar mediaopt option can also be used to select either .Ar full-duplex or .Ar half-duplex modes. .El .Pp The .Nm driver supports the following media options: .Pp .Bl -tag -width xxxxxxxxxxxxxxxxxxxx .It full-duplex Force full duplex operation .It half-duplex Force half duplex operation. .El .Pp Note that the 100baseTX media type is only available if supported by the adapter. For more information on configuring this device, see .Xr ifconfig 8 . .Sh DIAGNOSTICS .Bl -diag .It "mx%d: couldn't map memory" A fatal initialization error has occurred. .It "mx%d: couldn't map interrupt" A fatal initialization error has occurred. .It "mx%d: watchdog timeout" The device has stopped responding to the network, or there is a problem with the network connection (cable). .It "mx%d: no memory for rx list" The driver failed to allocate an mbuf for the receiver ring. .It "mx%d: no memory for tx list" The driver failed to allocate an mbuf for the transmitter ring when allocating a pad buffer or collapsing an mbuf chain into a cluster. .It "mx%d: chip is in D3 power state -- setting to D0" This message applies only to adapters which support power management. Some operating systems place the controller in low power mode when shutting down, and some PCI BIOSes fail to bring the chip out of this state before configuring it. The controller loses all of its PCI configuration in the D3 state, so if the BIOS does not set it back to full power mode in time, it won't be able to configure it correctly. The driver tries to detect this condition and bring the adapter back to the D0 (full power) state, but this may not be enough to return the driver to a fully operational condition. If you see this message at boot time and the driver fails to attach the device as a network interface, you will have to perform second warm boot to have the device properly configured. .Pp Note that this condition only occurs when warm booting from another operating system. If you power down your system prior to booting .Ox , the card should be configured correctly. .El .Sh SEE ALSO .Xr arp 4 , .Xr netintro 4 , .Xr ifconfig 8 .Rs .%T Macronix 98713/A, 98715/A and 98725 data sheets .%O http://www.macronix.com .Re .Rs .%T Macronix 98713/A and 98715/A app notes .%O http://www.macronix.com .Re .Sh HISTORY The .Nm device driver first appeared in .Fx 3.0 . .Ox support first appeared in .Ox 2.5 . .Sh AUTHOR The .Nm driver was written by .An Bill Paul Aq wpaul@ctr.columbia.edu . .Sh BUGS The Macronix application notes claim that in order to put the chips in normal operation, the driver must write a certian magic number into the CSR16 register. The numbers are documented in the app notes, but the exact meaning of the bits is not. .Pp The 98713A seems to have a problem with 10Mbps full duplex mode. The transmitter works but the receiver tends to produce many unexplained errors leading to very poor overall performance. The 98715A does not exhibit this problem. All other modes on the 98713A seem to work correctly.