Re: sungem - ifconfig eth0 mtu 1300 -> oops

[Benjamin Herrenschmidt]

On Tue, 2004-06-22 at 10:04, Jeff Garzik wrote:
> Chris Friesen wrote:
> > Just a quick question.  Does the sungem chip support jumbo frames?  I'd 
> > like to use MTU of 9000 to make large local transfers more efficient, 
> > but it didn't seem to work last time I checked.
> 
> 
> Are you 100% certain you configured the other side to support jumbo?
> 
> Jumbo frames are non-standard, and sometimes require configuring MTU on 
> the switch or remote network card (if directly connected).

Well, it's not enabled in the driver I think, or at least it wasn't last
time I looked. Dave told me the chip fifo's are too small to do anything
useful with jumbo frames.

Ben.


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