Subject: Re: no luck with Adaptec SCSI controller in 2.4.X
From: David A. Gatwood (dgatwood@apple.com)
Date: Fri Oct 12 2001 - 12:29:01 MDT
On Friday, October 12, 2001, at 11:13 AM, Kevin B. Hendricks wrote:
>>>> Perhaps the drive
>>>> will function correctly if tagged queing is disabled for it. You
>>>> can do this only for target 1 with the "tag_info" option. There may
>>>> also be firmware updates for this drive.
>
> Okay I used tag_info as you directed and set the Quantum Fireball drive
> to
> use a maximum tag depth of 8 (like the old driver used) and everything
> seems to work fine.
>
> So can you point me to where in your driver code the depth of the tagged
> queueing is dynamically determined? I would like to play around a bit
> with the driver code to see if I can tell if the Quantum Fireball is
> simply spitting back bogus info or and if so what?
IIRC, early Fireball models reported support for TCQ and didn't even
support it. This from discussions on the NetBSD forums a few years
back. I wouldn't be surprised if the drive were reporting wrong
info.... From what I gather, Quantum's high end drives were pretty
decent, but I have a stack of dead Fireballs to prove that their low end
drives weren't.... :-|
Later,
David
This archive was generated by hypermail 2a24 : Fri Oct 12 2001 - 11:40:05 MDT