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 <[email protected]> wrote: > > On Sun, 29 Jun 2014, Jesse Osiecki wrote: > >> On Sun, Jun 29, 2014 at 1:41 AM, Finn Thain <[email protected]> >> 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. > > -- -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: https://lists.debian.org/caa_7s_hgkry3ejk88+6yxguk4u3rsnr7kgwewufpm4koazn...@mail.gmail.com
