Re: sonic_init: failed, status=0
Finn,
I bought what appeared to be a good card (I took the risk on it, it
was only $8) and it should be here soon. I'd be glad to work on some
of those issues. Assuming I have ethernet up and running in a day here
that is haha. I can let you know, and then we can talk about what I
might be able to take on?
Best,
Jesse Osiecki
919-792-8579
jessejosiecki.com
On Tue, Jul 1, 2014 at 12:45 AM, Finn Thain <fthain@telegraphics.com.au> wrote:
>
> On Sun, 29 Jun 2014, Jesse Osiecki wrote:
>
>> On Sun, Jun 29, 2014 at 1:41 AM, Finn Thain <fthain@telegraphics.com.au> wrote:
>> >
>> > But if I were you, I would try to get an actual Nat. Semi. SONIC card.
>> > The old smc9194 driver does not do DMA, it copies packets to and from
>> > the card one word at a time. The macsonic driver has DMA and does
>> > zero-copy I/O. It will be much faster and much less taxing on scarce
>> > CPU cycles.
>> Those are hard to get, but it would solve everything. I'm tempted to
>> find the smc9194 driver and rewrite it
>
> The code is here (linux-2_2 branch):
> http://linux-mac68k.cvs.sourceforge.net/viewvc/linux-mac68k/linux-mac68k/drivers/net/smc9194.c?view=log&pathrev=linux-2_2
>
> If you switch to the 2.4 (MAIN) branch, you'll see there's no
> nubus/comm-slot support in smc9194.c (same on kernel.org), so this work
> probably never got pushed anywhere (though there once was another CVS, now
> lost).
>
>> as half of the reason I got into m68k was that it would force me to work
>> outside my comfort zone (building an Ethernet driver would certainly
>> qualify).
>
> Well, there are more important issues that might also take you out of your
> comfort zone:
>
> - Xorg crashes with ADB mice (regression)
> - kswapd bug (regression)
> - coldfire VDSO support needs porting to m68k
>
> These are just the tip of the iceberg. My own long to-do list does not
> include the above issues, though others may be working on them (?)
>
> My to-do list has no bugs to fix relating to your particular hardware, but
> I have a suspicion that your Mac has a SWIM III floppy disk controller
> (and if so it should probably be using the powermac floppy driver).
>
> Working on this stuff is easier with faster hardware (e.g. SONIC and DMA).
> Some jobs can be tackled in aranym.
>
>> Before I make moves on the driver, do you know off the top of your head
>> the reason that there is no DMA in the smc9194 driver?
>
> No, not off the top of my head. Perhaps the chip can't do DMA operations?
> I'd need to dig up a datasheet.
>
> --
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