On Thu, Sep 14, 2006 at 08:46:07AM -0700, [EMAIL PROTECTED] wrote: > On Thu, Sep 14, 2006 at 05:39:08PM +0200, Ingo Oeser wrote:
> > Is it possible to have the maximum value right from the start? > > May I tune it somewhere to be the maximum from the start? > This will (if I recall) increase transmit latency. It's a fine line. You > might tune it up, but this fallback path probably should not be removed.. Yes, raising the limit there will increase transmit latency since it causes the chip to wait for more data to be DMAed before it begins pushing the frame out. I guess the dropped packet could be worked around by resubmitting the dropped packet when we reconfigure the chip, though obviously that's not ideal. It would be interesting to understand what caused this to start happening. The main change in natsemi itself between 2.6.13.4 and 2.6.16.27 is the introduction of NAPI although it could be some other change causing PCI bandwidth to become more scarce. -- "You grabbed my hand and we fell into it, like a daydream - or a fever." - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
