Stability of MPC5200 FEC

[Asier Llano Palacios]

El sáb, 11-02-2006 a las 16:28 +0100, Sylvain Munaut escribió:
> Asier Llano Palacios wrote:
> Did you ever observe that behavior on a lite5200 ?
> What is 'long uptime' and do you have sustained transfer during that
> period ? (To try reproduice the problem).

Weeks uptime. We don't work with the lite5200 for so long time, but our
board is based on a lite5200, and the FEC configuration is exactly
equal.

> Also, what are the 'symptoms' ? (anything in dmesg ?)

FEC doesn't work at all, everything else works. If using a console I
execute 'ifconfig eth0 down && ifconfig eth0 up <IP>' the fec starts
working again.
I haven't reproduced it directly, but a partner and a customer. I'll try
to reproduce this behaviour myself and bring back more information.

> I haven't touched the FEC code much except to remove the
> aligment code (newer bestcomm microcode doesn't require alignement of
> the skb). 
> 
> You can send me the driver/net/fec_mpc52xx and arch/ppc/syslib/bestcomm
> you're using, I'll tell you if there was major changes.

I've sent to you the patches that I extracted from your kernel source
tree some time ago.
I have all the patches until the 1.2161 one. But I've only sent to you
the ones related to the FEC and the bestcomm.


-- 
Asier Llano Palacios
ZIV I+D Smart Energy Networks
Dpto. Ingeniería de Desarrollo.

ZIV, Aplicaciones y Tecnología.
Parque Tecnológico, 210
48170 ZAMUDIO (Bizkaia)

E-mail: a.llano at ziv.es
Tlfno: 944037400 
 
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