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Date:      Thu, 19 Aug 1999 09:08:30 -0700 (PDT)
From:      Robert Swindells <swindellsr@genrad.co.uk>
To:        sean@dreamfire.net
Cc:        stable@freebsd.org
Subject:   Re: AMD PCnet 10/100 PCI usability
Message-ID:  <19990819160830.3385015024@hub.freebsd.org>
In-Reply-To: <37BB59D0.72484081@dreamfire.net> (message from Sean-Paul Rees on Wed, 18 Aug 1999 18:11:44 -0700)

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>I have a PCnet 10/100 adapter built onto my motherboard (PC Server 325),
>and FreeBSD picks it up as "lnc1." The damned thing got 3-4k/sec
>transfers at the most. It appeared to not be negotiating with the hub
>correctly. 

Yup, they can fail to autonegotiate.

>It looks like I'm going to need a second ethernet in that particular
>machine to run NATD for a DSL. Is anybody getting decent performance
>with that adapter in a similar configuration? I'd like to save $50.

They work fine when the settings match the hub. Interrupt overhead is
fairly low too, better than NE2000 clones anyway.

We really need to add if_media support to the driver. I got some way
through doing it for 2.2.8 but then the driver in -CURRENT diverged
too much. I have now upgraded to 3.2-STABLE so I'll take another look
at it.

The alternative is to force the chip into half-duplex mode in the driver.

Robert



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