Intel GigE and copper PHY supported?

[Simon L. Nielsen]

On 2003.05.06 10:07:03 -0700, Jin Guojun [NCS] wrote:
> joe mcguckin wrote:
> 
> > I'd like to use the TYAN Trinity GC-SL motherboard with on-board GigE
> > (copper). Does anyone know if this is supported? Has anyone used this board
> > with 4.X?
> >
> > Thanks,
> 
> Do not have direct use of this motherboard. We have some similar M/Bs
> from SuperMicro (same chipset and same GigE NICs).
> 
> General M/B performance is good. The GigE is not too pleasure.
> The Incoming TCP is about 350 Mb/s, and out going TCP is only 270,
> which is limited by interrupt (98% CPU -- 2.8 GHz -- used for interrupt).
> Either the driver or the Intel NIC is not functioning properly, but we do not
> have time to investigate.

If this the chips a using the em(4) driver you can try turning on
interrupt coalation (or whatever Intel calls it). It can (AFAIR) only be
done by modifying sys/dev/em/if_em.h. Just note the warning about why it
was disabled.

-- 
Simon L. Nielsen
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