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Date:      Mon, 04 Mar 1996 17:05:34 -0800
From:      David Greenman <davidg@Root.COM>
To:        Clary Harridge <clary@s4.elec.uq.edu.au>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: SMC EtherPower pci bus FDX transfer rate problem 
Message-ID:  <199603050105.RAA19135@Root.COM>
In-Reply-To: Your message of "Tue, 05 Mar 1996 10:33:40 %2B1000." <199603050033.KAA25040@s4.elec.uq.edu.au> 

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>Further to my previous mail on the topic
>
>	 FreeBSD / samba transfer rate problem
>
>I find that my problem is due poor performace from
>the SMC EtherPower 10BaseT PCI Ethernet adapter that is in our
>samba server. This is a Full Duplex card which connects, via UTP,
>to a Kalpana Etherswitch running in full duplex mode.

   The 'de' driver doesn't currently support full duplex mode.

>Transfer rates are of the order of 10 Kbyte/sec. I would expect it to
>be at least 450 Kbyte/sec, as I can achieve that with a 16 bit ISA bus
>SMC 8013EPC.
>
>Has anyone used the SMC EtherPower successfully together with the
>`de' device driver (for the Digital Equipment DC21040)?

   Yes, of course. That's what we were using in wcarchive before changing to
an SMC 9332 (100Mbps, DC21140).

>Is the `de' device driver capable of driving the SMC EtherPower 
>in full duplex mode?

   No.

-DG

David Greenman
Core-team/Principal Architect, The FreeBSD Project



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