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Date:      Tue, 20 Jun 2000 10:41:14 +0200
From:      Graham Wheeler <gram@cequrux.com>
To:        Olaf Hoyer <ohoyer@fbwi.fh-wilhelmshaven.de>
Cc:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: PCI Plug 'n' Pray and old BIOSes
Message-ID:  <a97a100b2dcde23932f05f1e2214dba1@cequrux.com>
References:  <4.1.20000620001700.00a487c0@mail.rz.fh-wilhelmshaven.de>

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Olaf Hoyer wrote:
> 
 Hi!
> 
> The card normally should act and behave at least as a normal NE2000 clone (ed0)
> But as stated before, you might have to jumper it into the mobo.

Yes, that was the problem. I managed to find the manual and discovered
it had been jumpered as non-PnP (not by me; I inherited this machine a
couple of years back to use as a PPP dialer and had an ISA NIC in it
until now).

> Also the PCI latency is IMHO too high.
> Try setting it at around 40.

That will affect the throughput of the NIC, or its reliability? Or both?
I'm not too concerned if its just throughput, because (horror!) it has
only ancient 16450 UARTs (one byte FIFO) on the multi-I/O card which are
driving a 56k modem. I think its a very positive reflection on FreeBSD
that despite this antique UART, which is being driven at 115200 baud,
the PPP connection works very reliably and with pretty good throughput
(there are the odd silo overflow log messages, but they don't seem to be
a real problem). In fact this ancient 486 with 16Mb RAM is doing a fine
job as a web cache, print and mail server. 

-- 
Dr Graham Wheeler                        E-mail: gram@cequrux.com
Director, Research and Development       WWW:    http://www.cequrux.com
CEQURUX Technologies                     Phone:  +27(21)423-6065
Firewalls/VPN Specialists                Fax:    +27(21)424-3656


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