Re: [NET] net driver updates

[Jeff Garzik <jgarzik@pobox.com>]

Daniel Egger wrote:
> On 06.04.2004, at 17:30, Jeff Garzik wrote:
> 
>> * Francois work on r8169, epic100, sis190: PCI DMA, NAPI, other minor 
>> fixes and cleanups
> 
> 
> r8169 seems to work though it is not even a tad bit faster
> than plain 2.6.5.

Francois is still trying to fix all the vendor-created bugs, so 
performance is a secondary consideration.

RTL8169 is a nice chipset, though.  Robert Ollsson had some nice pktgen 
numbers for it, IIRC.


> Those cards are really driving me nuts. Between two r8169 cards, one
> on Athlon with kernel 2.4.24, one on Athlon with 2.6.5 or 2.4.24, I
> get 90Mbit/s in one direction and 39Mbit/s in the other using iperf and
> TCP. With iperf and UDP they deliver 100Mbit/s resp. 230Mbit/s depending
> on the direction. Crosschecking with my PowerBook (OS X) shows that I can
> get 844Mbit/s (UDP) or 572Mbit/s (TCP) to one host and 844Mbit/s (UDP) but
> only 88Mbit/s (TCP) to the other.
> 
> The environment is switched and changing cables and/or ports doesn't
> improve the results.
> 
> Ideas? (Yeah, I'll get Intel NICs RSN...)

Yeah -- I plan to kill r8169, and use 8139cp.c to drive it instead :)

	Jeff