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author | msmith <msmith@FreeBSD.org> | 1997-05-22 08:52:23 +0000 |
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committer | msmith <msmith@FreeBSD.org> | 1997-05-22 08:52:23 +0000 |
commit | 9db7cae85cecfe5cc8ddef60eb4824a11de7cc29 (patch) | |
tree | e74e907e13fbe9e45629818c72cd3a96498f74c5 /share/man | |
parent | 8b8b690675bc37aba622ecd7dc1cd4cd90a3ee9b (diff) | |
download | FreeBSD-src-9db7cae85cecfe5cc8ddef60eb4824a11de7cc29.zip FreeBSD-src-9db7cae85cecfe5cc8ddef60eb4824a11de7cc29.tar.gz |
Manpage for the 'wl' Wavelan driver.
Diffstat (limited to 'share/man')
-rw-r--r-- | share/man/man4/man4.i386/wl.4 | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/share/man/man4/man4.i386/wl.4 b/share/man/man4/man4.i386/wl.4 new file mode 100644 index 0000000..a7c5bad --- /dev/null +++ b/share/man/man4/man4.i386/wl.4 @@ -0,0 +1,144 @@ +.\" +.\" Copyright (c) 1996 Michael Smith +.\" 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. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 THE AUTHOR OR CONTRIBUTORS 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. +.\" +.\" $Id$ +.\" +.Dd March 4, 1997 +.Dt ED 4 i386 +.Os FreeBSD +.Sh NAME +.Nm wl +.Nd +NCR Wavelan device driver +.Sh SYNOPSIS +.Cd "device wl0 at isa? port 0x300 net irq ? vector wlintr" +.Sh DESCRIPTION +The +.Nm +driver provides support for the ISA bus AT&T/NCR/Lucent Wavelan +ethernet-like wireless network cards. +.Pp +All card configuration values except for the base address are read from the PSA +(Parameter Storage Area) on the card, which can be configured with the +.Xr wlconfig 8 +program. The base address for the card is set by dipswitches; see the manual +supplied with the card for details. +.Pp +The +.Nm +driver does not accept any flags, however its behaviour can be controlled with +a number of sysctl values: +.Bl -hang -offset indent +.It Em machdep.wl_xmit_delay +On some systems, the driver is too fast for the Wavelan card. This value can be +tweaked to slow the output rate of the driver at the expense of CPU performance. +A value of 200 is believed to be acceptable for 486 systems, while 1000 is +considered adequate for a 166MHz Pentium. +.It Em machdep.wl_xmit_watch +Causes extra debugging messages concerning the state of transmitted packets to +be printed. +.It Em machdep.wl_gather_snr +SNR statistics are gathered. This is not completely implemented yet. +.El +.Sh DIAGNOSTICS +.Bl -diag +.It "wl%d: PSA corrupt (invalid IRQ value)" +The IRQ value in the PSA is illegal. The card will be configured not to generate +any interrupts, ie. it will not work as a network device, however it will be possible +to use +.Xr wlconfig 8 +to reconfigure the IRQ to a sensible value. +.It "wl%d init(): trouble resetting board." +.It "wl%d bldcu(): iscp_busy timeout." +.It "wl%d bldcu(): not ready after reset." +The board failed to respond correctly during reset and configuration. +.It "wl%d: busy?!" +While attempting to queue a packet for transmission, the card claims to +be busy although we were sure it wasn't. +.It "wl%d read(): board is not running." +An attempt was made to read a packet from the card, but we don't think that +it's running. Should never happen. +.It "wl%d read(): Invalid buffer" +The i82586 on the card has corrupted its buffers. +.It "wl%d read(): hwrst trouble." +Having failed to meet expectations, the i82586 on the card is refusing to reset. +.It "wl%d read(): No mbuf nth" +An error occurred allocating mbufs to copy a received packet to. +.It "wl%d ioctl(): board is not running" +The interface was marked as DOWN but still RUNNING. Harmless. +.It "wlack() int bits disappeared : %04x != int_type %04x" +While acknowledging an interrupt, some of the interrupt sources on the i83586 +went away. +.It "wl%d: xmt intr but not busy, CU %04x" +A transmit interrupt occurred but we are not expecting one. +.It "wl%d: xmt intr but ac_status == 0" +A transmit interrupt occurred but there is no status to indicate that one should +have been generated. +.It "wl%d: xmt aborted" +The transmission of a packet was aborted. +.It "wl%d: no CTS" +A packet was not transmitted because the CTS input to the i82586 went away. +.It "wl%d: DMA underrun" +The DMA hardware on the Wavelan card failed, causing an outgoing packet to be +lost. +.It "wl%d: xmt deferred" +Transmission of a packet was deferred to avoid other traffic. +.It "wl%d: heart beat" +The i82586 thought it heard a heartbeat signal. This usually means that there's +someone else transmitting at the same time. +.It "wl%d: too many collisions" +A packet was aborted because too many collisions occurred trying to send it. +.It "wl%d RCV: !OK %x" +A receive operation did not complete OK. +.It "wl%d: slow accepting xmit" +The i82586 on the card is taking a long time to accept a transmit command. +.It "wl%d: i82586 Self Test failed!" +Diagnostics on the i82586 failed. +.It "wl%d: %s failed; status = %d, inw = %x, outw = %x" +A command to the i82586 failed. +.It "wl%d wlack(): board not accepting command." +The card is not responding to an interrupt acknowledge. +.El +.Sh CAVEATS +The cards are known to lose transmit interrupts under heavy load. Ajust the +machdep.wl_xmit_delay parameter to avoid this. +.Pp +On one test link, packet loss was significant enough to causes major lagging. +.Sh BUGS +The +.Nm +driver is very old and has been hacked on by many people. The i82586 is an +odd and funky device. The two are not necessarily a good mix. +.Sh SEE ALSO +.Xr wlconfig 8 , +.Xr netintro 4 , +.Xr ifconfig 8 +.Sh HISTORY +The +.Nm +device driver was written/ported for Mach by Anders Klemets, ported to BSD/OS +by Richard Morris, to FreeBSD 2.1 by Jim Binkley and to FreeBSD 2.2 by Michael +Smith. It has not appeared in any FreeBSD releases yet. + |