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SubjectRe: Oops with 3c59x module (3com 3c595 NIC)
Henning P. Schmiedehausen wrote:
> Jeff Garzik <jgarzik@pobox.com> writes:
>
>
>>pci-skeleton.c and several of Don's drivers actually do do something
>>else on TxUnderrun, twiddle DMA burst settings:
>
>
>> if ((intr_status & TxUnderrun)
>> && (np->tx_config & TxThresholdField) !=
>>TxThresholdField) {
>> long ioaddr = dev->base_addr;
>> np->tx_config += TxThresholdInc;
>> writel(np->tx_config, ioaddr + TxMode);
>> np->stats.tx_fifo_errors++;
>> }
>
>
>>I wonder how feasible it is to do that on 3c59x hardware?
>
>
> I wonder whether this is not a layer violation. Shouldn't there be
> some sort of API call to do this?


that's unlikely because this operation is incredibly hardware-specific.

Jeff



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