Re: [PATCH 1/5] m68k/atari: EtherNAT - change number of Atari interrupts to make room for EtherNAT interrupts

[Michael Schmitz <schmitzmic@googlemail.com>]

Hi Geert,
> See attached - the 3.3.0-ethernat patches implement switching over to 
> the mainstream 91Cx driver (card detected on my Falcon, link brought 
> up but not detected by the driver due to hardware problems). The 
> 3.3.0-atari-cleanup-num-irqs.diff sets the number of interrupt sources 
> to 141 on Atari, setting the number of VME sources back to 16 so we 
> don't accidentially trash memory contiguous with the free_vme_irq bitmap.
>
> For some reason, I have to set NUM_ATARI_SOURCES to 141 to actually 
> get interrupt source 140 to register. Off-by-one error somewhere in 
> the generic interrupt code I'd think, but I've not been able to spot 
> it. (Just increasing the number of interrupts that are registered by 
> atari_init_IRQ results in 'unexpected interrupt from 112' until the 
> cows come home. And yes, it happens in ARAnyM, too.)
>
> That pretty much wraps it up for EtherNEC and EtherNAT - EtherNEC is 
> fully tested by me, EtherNAT needs testing on Christian's Falcon or by 
> someone else with fully functional hardware. Next project : SCSI, SCC 
> serial, or what?...
Forgot to add my Signed-off-by - I guess the same arguments apply here 
as Paul raised them for ne.c. Do you want a new patch set based on 
current m68k?

Cheers,

  Michael