Re: Re: Gigabit ethernet support of ppc440gx in 2.6 and 2.4

Hi Eugene:

Does the TCP/IP Acceleration Hardware of 440GX have been supported in official 2.6 kernel?
How about the CPU utilization when you get 900+Mb/s? Since we want to do something such as simple datas codec at the same time.

Regards,

Lonsn
 

On Wed, Feb 15, 2006 at 02:08:52PM +0800, ????????? wrote:

quoted

We want to get a data rate of 600Mbits/s over gigabit ethernet of ppc440gx.
How about the status of support to ppc440gx GigE in Linux kernel?
Which kernel version should we select? 2.6 or 2.4?

GigE support for 440GX is in official 2.6. Patch for 2.4 is available 
at http://kernel.ebshome.net. If you don't feel comfortable dealing 
with kernel patches, I'd recommend 2.6

Effective Ethernet throughput highly depends on packet size. For some 
small packet sizes 600Mb/s is theoretically impossible over GigE.

I achieved 900+ Mb/s TCP throughput with my driver (packets around 4K 
long) and using sendfile(2) based test application.

-- 
Eugene