Re: IPWireless 3G PCMCIA Network Driver and GPL

[Ben Martel <benm@symmetric.co.nz>]

Y'all,

I have had a look at the changes to the 2.6.1{6,7} kernel to do with the 
buffering and I think that this driver will benefit greatly from the 
changes away from the flip/flop scheme.

When Steve and I originally wrote the driver it always seemed to be 
limited throughput wise, due to the inefficient char handling it did.

Good luck in the 'hacking it for 2.6.1{6,7} department' let me know if I 
can help at all :)

BTW: Can someone tell me the version that you are changing - I may have 
a later version that fixes a problem with the V2 PCMCIA cards from 
IPWireless/T-Mobile.

   ~benm

Patrick McFarland wrote:
> On Friday 23 June 2006 09:53, Alan Cox wrote:
> > Ar Gwe, 2006-06-23 am 15:21 +0200, ysgrifennodd Charles Majola:
> > > Alan, can you please give me pointers on the tty changes since 2.6.12?
> > The newest kernels have a replacement set of tty receive functions that
> > use a new buffering system.
> >
> > http://kerneltrap.org/node/5473
> >
> > covers the changes briefly. The internals of the buffering changes are
> > quite complex because Paul did some rather neat things with SMP locking
> > but the API is nice and simple.
> >
> > Its fairly easy to express the old API in terms of the new one if you
> > are doing compat wrappers as well
>
> Actually, its rather neat that something as 'simple' as tty still gets heavily 
> hacked on every once in awhile.

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