Re: 3c59x.c

Jean-Francois Micouleau (Jean-Francois.Micouleau@utc.fr)
Wed, 27 Nov 1996 19:36:48 +0100 (MET)

On Wed, 27 Nov 1996, Phillip Dillinger wrote:
> Hi,
>
> Does anyone know about bus mastering on the 3com 3c59x or 3c900 cards? When
> I enable bus mastering in the driver, as opposed to PIO, the data rate
> delivered to the card goes way down. As far as I can see, the kernel is
> taking about 10ms waiting for the DMA to finish for each transfer. I have
> heard of other people getting close to 100Mbps on this card, but either due
> to my kernel, 2.0.23, or my hardware, a Fugu P100, the bus mastering does
> not seem to work right.

you're not the only one having problems, on a busy ppro, I receive
' eth0: Transmitter access conflict.' message 10 times every minute with
a 3c590, 8K vortex card. Sometimes the machine is totally hang on the
network side. The only solution is to ifconfig eth0 down and up to kick up
the 3c590.

If anybody have clues ...

>
> Any help or info is greatly appreciated.
>
> Sincerely, Phillip Dillinger
> .,
>

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: Jean Francois Micouleau : Email: jfm@utc.fr :
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