On Thu, 20 Jan 2000, Arno Verhoeven wrote about, Re: Can't get packet length over
338 bytes when using SCC card.:
> Richard Adams wrote:
> >
> > Arno, you need to edit /usr/src/linux/drivers/net/hamradio/scc.c at line
> > nr. 141 in kernel 2.2.14 and increase the buffsize accordingly.
> >
> > > Has anybody seen the same, and possible have a sollution for this
> > > problem?
> >
> > Yes it does not work like it used to, i had the same problem with 512 MTU.
> >
>
> Richard,
>
> Just to make sure I understand correctly...
>
> Does this mean that if I set a buffer size in z8530drv.conf, that this
> has not an affect on the driver. And that changing the same value in the
> source does work?
Using z8530drv-3.x i belive you cant set any buffers at all in the config
file.
> I've tried changing the buffersize in z8530drv.conf but this did not
> have the desired effect.
Ah!, then you must have seen that when sccinit is issued it does state that
buffers are no longer a configurable option.
Seeing that you are using 2.2.x kernels i presume you are using
z8530drv-3.x. That you did not mention in your origanal post.
What i am more interested in is what you are using for a trx, what sort of
card with or without opto couplers, and on what freq, the lap is planned.??
Maybe you could send me a personal in Dutch.??
Once more if you edit the scc.c file and rebuild the kernel and/or module
then 512 bytes should work.
I did do that with 2.2.13 but i did not test it too much, now i changed to
2.2.14 and forgot to edit scc.c so i just changed the MTU back to 256.
I will however compile a new kernel and actualy try 1500 as mtu, i am the
sysop of PI1GOE so i can change what i want on both ends.
I send you a personal later with my findings.
>
> 73, Arno pe1icq
--
Regards Richard
[EMAIL PROTECTED]
http://people.zeelandnet.nl/pa3gcu/
