diff options
| author | Jacob McDonnell <jacob@jacobmcdonnell.com> | 2026-04-25 14:02:27 -0400 |
|---|---|---|
| committer | Jacob McDonnell <jacob@jacobmcdonnell.com> | 2026-04-25 14:02:27 -0400 |
| commit | 6d8bdc65446a704d0750217efd05532fc641ea7d (patch) | |
| tree | 8ae6d698b3c9801750a8b117b3842fb369872a3a /static/openbsd/man4/wb.4 | |
| parent | 2f467bd7ff8f8db0dafa40426166491d7f57f368 (diff) | |
docs: OpenBSD Man Pages Added
Diffstat (limited to 'static/openbsd/man4/wb.4')
| -rw-r--r-- | static/openbsd/man4/wb.4 | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/static/openbsd/man4/wb.4 b/static/openbsd/man4/wb.4 new file mode 100644 index 00000000..2329854e --- /dev/null +++ b/static/openbsd/man4/wb.4 @@ -0,0 +1,157 @@ +.\" $OpenBSD: wb.4,v 1.21 2013/07/16 16:05:49 schwarze Exp $ +.\" +.\" Copyright (c) 1997, 1998 +.\" Bill Paul <wpaul@ctr.columbia.edu>. 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: wb.4,v 1.2 1998/12/05 09:31:25 rnordier Exp $ +.\" +.Dd $Mdocdate: July 16 2013 $ +.Dt WB 4 +.Os +.Sh NAME +.Nm wb +.Nd Winbond W89C840F 10/100 Ethernet device +.Sh SYNOPSIS +.Cd "wb* at pci?" +.Cd "amphy* at mii?" +.Sh DESCRIPTION +The +.Nm +driver provides support for PCI Ethernet adapters and embedded +controllers based on the Winbond W89C840F Fast Ethernet controller chip. +This includes the TRENDnet TE100-PCIE and various other cheap boards. +The 840F should not be confused with the 940F, which is +an NE2000 clone and only supports 10Mbps speeds. +.Pp +The Winbond controller uses bus master DMA and is designed to be +a DEC "tulip" work-alike. +It differs from the standard DEC design +in several ways: the control and status registers are spaced 4 +bytes apart instead of 8, and the receive filter is programmed through +registers rather than by downloading a special setup frame via +the transmit DMA engine. +Using an external PHY, the Winbond chip +supports both 10 and 100Mbps speeds in either full or half duplex. +.Pp +The +.Nm +driver supports the following media types: +.Bl -tag -width full-duplex +.It autoselect +Enable autoselection of the media type and options. +This is only supported if the PHY chip attached to the Winbond controller +supports NWAY autonegotiation. +The user can manually override +the autoselected mode by adding media options to the appropriate +.Xr hostname.if 5 +file. +.It 10baseT +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: +.Bl -tag -width full-duplex +.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 "wb0: couldn't map memory" +A fatal initialization error has occurred. +.It "wb0: couldn't map interrupt" +A fatal initialization error has occurred. +.It "wb0: watchdog timeout" +The device has stopped responding to the network, or there is a problem with +the network connection (cable). +.It "wb0: no memory for rx list" +The driver failed to allocate an mbuf for the receiver ring. +.It "wb0: 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. +.El +.Sh SEE ALSO +.Xr amphy 4 , +.Xr arp 4 , +.Xr ifmedia 4 , +.Xr intro 4 , +.Xr netintro 4 , +.Xr pci 4 , +.Xr hostname.if 5 , +.Xr ifconfig 8 +.Sh HISTORY +The +.Nm +device driver first appeared in +.Fx 3.0 . +.Ox +support first appeared in +.Ox 2.5 . +.Sh AUTHORS +The +.Nm +driver was written by +.An Bill Paul Aq Mt wpaul@ctr.columbia.edu . +.Sh BUGS +The Winbond chip seems to behave strangely in some cases when the +link partner switches modes. +If, for example, both sides are set to 10Mbps half-duplex, and the other end +is changed to 100Mbps full-duplex, the Winbond's receiver suddenly starts +writing trash all over the RX descriptors. +The +.Nm +driver handles this by forcing a reset of both the controller +chip and attached PHY. +This is drastic, but it appears to be the only way to recover properly from +this condition. |
