[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: SMP-DS20 (DP264) beginner problems



On Wed, Jan 11, 2006 at 01:35:19PM +0100, Bernd Petrovitsch wrote:
> On Wed, 2006-01-11 at 02:31 -0800, Steve Langasek wrote:
> [...]
> > On Wed, Jan 11, 2006 at 11:05:15AM +0100, Bernd Petrovitsch wrote:
> > > I installed Debian/Sarge + Updates on a SMP-DS20 (DP264).
> > > The problems encountered:
> > > - The 2.6.8 (IIRC) Kernel-Packages don't work - especially the SCSI
> > >   drivers couldn't be loaded so the (only) disk is not found.
> > >   With the 2.4 (don't remember the exact version) SMP version,
> > >   everything works fine.
> > 
> > What SCSI controller is this?
> 
> ----  snip  ----
> Chip sym53c875, device id 0xf, revision id 0x4
> On PCI bus 1, device 4, function 0, IRQ 23
> Min. period factor 12, Wide SCSI BUS
> Max. started commands 1022, max. commands per LUN 64
> ----  snip  ----
> 
> It's an ordinary PCI-Card since I've been told that the two onboard
> controllers are known dead/defunct/b0rken.

I'm using a 53c895 and it works just fine if I choose
CONFIG_SCSI_SYM53C8XX_2. Tested with 2.6.8.1 and above. I've had
problems with the old driver (I guess it was CONFIG_SCSI_SYM53C8XX) but
always about 'wrong' detection of bus speeds, e.g. Fast-20 instead of
Fast-40 and LVD instead of SE.
Are you sure it's a driver issue? Maybe the 2.4 driver was just more
tolerant towards faulty termination and cabling.

Btw, I've set DMA addressing mode to 1TB (1), default tagged command
queue depth to 16 and maximum number of queued commands to 128. Maybe
that helps.

Regards,

Falko



Reply to: