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Date:      Thu, 16 Nov 2000 14:37:55 +0100 (MET)
From:      Helge Oldach <Helge.Oldach@atosorigin.com>
To:        Thierry.Herbelot@alcatel.fr
Cc:        freebsd-stable@freebsd.org, wpaul@osd.bsdi.com
Subject:   Re: lnc and pcn drivers for an ancient HP PC
Message-ID:  <200011161337.OAA08143@galaxy.de.cp.philips.com>
In-Reply-To: <C1256996.005C8FDE.00@frmta003.netfr.alcatel.fr> from "Thierry.Herbelot@alcatel.fr" at "Nov 13, 2000  5:50:58 pm"

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Thierry.Herbelot@alcatel.fr:
>I had some troubles using the embedded "AMD PCNet/PCI" NIC of an
>ancient HP PC

Me too, but different trouble:

This is also a HP box with a built-in pcn0 Ethernet. The NIC has two
UTP connectors, one labelled "10" the other (surprise! :-)) "100". This
machine is connected to a 10baseT UTP hub.

The "10" connector does not work at all. Whether connected to the hub
or not the link never comes up. Only the link LED near the connector is
lit, but it has no effect.

Maybe the "10" connector is tied to the serial interface while the "100"
connector uses MII?

The "100" connector works - even with the 10baseT hub. (Parallel flood
pings result in a few packet losses but no errors.) But the NIC gets a
decent link *only* if during probing the UTP is *not* (!) connected. In
that case it says:

pcn0: <AMD PCnet/PCI 10/100BaseTX> port 0xf8e0-0xf8ff mem 0xfedfb800-0xfedfb81f irq 11 at device 11.0 on pci0
pcn0: Ethernet address: 00:60:b0:f3:6b:b7
miibus0: <MII bus> on pcn0
nsphy0: <DP83840 10/100 media interface> on miibus0
nsphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto

however if the port remains connected during boot the last line reads

nsphy0:  no media present

This is rather odd. The system is a quite recent
FreeBSD 4.2-BETA #0: Thu Nov 16 05:19:57 CET 2000

Helge


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