At 04:40 PM 6/7/00 -0700, Mike Smith wrote:
>>
>> Running a Dlink quad card (570TX) in 100Mb/s full dup mode the driver
>> complains about underruns for awhile and then ultimately sets
>> store_and_forward which seems to make it work.
>>
>> Is there a way to force this easily? It seems that it should certainly be
>> the default if full dup 100 mode is detected as the other settings fail
>> quite easily on rather trivial activities.
>>
>> should this card be used with the if_dc or if_de driver? Both seem to probe
>> it successfully, although both drivers have the same (annoying) underrun
>> problem (that wasnt a problem or at least not screen-verbalized in 3.4).
>
>Transmit underrun is usually caused by another peripheral hogging the PCI
>bus; either a poorly configured card with an excessive latency value, or
>a misconfigured card (due to BIOS bugs), or a card that otherwise ignores
>the PCI latency rules, or a system with too many busy busmaster cards.
I'm well aware of that but it doesnt really help.
I suspect that the onboard PCI bridge chip is slowing things a bit...the
bottom line is that doing a simple transfer with nothing else going on
causes the failures...which is precisely why I want to set it by default.
Dennis
>
>> Dennis
>> Emerging Technologies, Inc.
>>
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>> ---------
>>
>>
>>
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>
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