Re: Oops with 3c59x module (3com 3c595 NIC)

[Jeff Garzik]

Henning P. Schmiedehausen wrote:
> Jeff Garzik <[e-mail]> 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