Adaptec recent decision

[Justin T. Gibbs]

In article <35AFBC24.9B69256A at silcon.com> you wrote:
> So what has/will-be the effect of the recent Adaptec decision to release
> documentation and hardware to the free software community in order to
> produce quality drivers? Have they done it?

Yes, they have been quite a bit more forthcoming with information than
in the past.  I've even received information from the engineering department
about bug errata that isn't published anywhere else.

> It seems like almost everyone running the aic7xxx drivers under linux
> 2.0.33-2.0.35 has trouble (including me with my plain vanilla AHA-2940
> in an SMP box) and I'm hoping that someone will get some good info from
> Adaptec so we can get a stable effective driver, so I can use my
> scanner...

All of the information is available including a driver that is very
stable under FreeBSD:

FreeBSD 3.0-CURRENT #32: Tue Jul 14 21:11:37 MDT 1998
    gibbs at narnia.plutotech.com:/a/perforce/src/sys/compile/NARNIA
ahc0: <Adaptec 2940 Ultra2 SCSI adapter> rev 0x00 int a irq 15 on pci0.9.0
ahc0: aic7890/91 Wide Channel A, SCSI Id=7, 32/255 SCBs
da1 at ahc0 bus 0 target 1 lun 0
da1: <QUANTUM XP34550S LYK8> Fixed Direct Access SCSI2 device 
da1: 20.0MB/s transfers (20.0MHz, offset 31), Tagged Queueing Enabled
da1: 4341MB (8890760 512 byte sectors: 255H 63S/T 553C)
da0 at ahc0 bus 0 target 0 lun 0
da0: <SEAGATE ST34572W 0718> Fixed Direct Access SCSI2 device 
da0: 40.0MB/s transfers (20.0MHz, offset 15, 16bit), Tagged Queueing Enabled
da0: 4340MB (8888924 512 byte sectors: 255H 63S/T 553C)
da2 at ahc0 bus 0 target 3 lun 0
da2: <QUANTUM VIKING II 4.5WLS 3506> Fixed Direct Access SCSI2 device 
da2: 80.0MB/s transfers (40.0MHz, offset 31, 16bit), Tagged Queueing Enabled
da2: 4350MB (8910423 512 byte sectors: 255H 63S/T 554C)
changing root device to da0s2a

The largest factor affecting the Linux driver is the brain damage
in the Linux SCSI layer.  You can't blame the current situation on
Adaptec.

--
Justin

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