Subject: Re: no luck with Adaptec SCSI controller in 2.4.X
From: Kevin B. Hendricks (khendricks@ivey.uwo.ca)
Date: Fri Oct 12 2001 - 10:38:28 MDT
Hi Justin,
On October 12, 2001 12:22, Justin T. Gibbs wrote:
> >Here is what dmesg says:
> >
> >SCSI subsystem driver Revision: 1.00
> >ahc_pci:1:2:0: Reading SEEPROM...done.
> >ahc_pci:1:2:0: internal 50 cable not present
> >ahc_pci:1:2:0: external cable not present
>
> What is your real cable configuration? This implies that we found
> *no* cables on the card. I'm sure that is not correct. Can you also
> tell me the exact markings on the card? I'd like to fix the cable
> detection logic.
This card is the Adaptec PCI card that apples shipped (ships?) as part of
it Build-To-Order process. The card is identified as an Adaptec 2930CU
and it has the following numbers (taken from Open Firmware)
1686806-04
Rom # 4.0
rev. 3
The card has no internal cables connected. It is used to drive provide
external scsi support. Apple installed the card and it ships with a
converter to convert it to the db 25 like connector previously used by
Apple for its scsi devices.
> From the messages file, it appears that the timing out device is
> simply not bothering to complete commands it has accepted. We
> abort these stuck commands successfully and even try them again,
> but the device won't cooperate. This appears to be your Quantum
> Fireball - a drive with a very spotty history.
Never a day of trouble with it under Mac or Linux up till the point I used
the new driver. Still works fine under the old aic7xxx driver.
> 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.
Can you be more specific about how to use the "tag_info" option. Where is
this option set (in the driver source code?) Or is it passed to the kernel
liek the aic7xxx=verbose option. If the latter, what syntax should I be
using so that I can test that option.
Thanks for you time with it. I really apreciate it.
Kevin
This archive was generated by hypermail 2a24 : Fri Oct 12 2001 - 09:47:37 MDT