RE: [PATCH] Optionally disable QAS in MPT Fusion spi driver

[Andrew Patterson <andrew.patterson@hp.com>]

On Thu, 2006-06-15 at 09:21 -0700, James Bottomley wrote:
> On Thu, 2006-06-15 at 09:31 -0600, Moore, Eric wrote:
> > James said it was okay for having this done in lld, instead
> > of transport.  I'm sure both me and Andrew would be happy 
> > the same if the transport handled this.  
> > Is that possible for you to look into this, or James?
> 
> Before we go the lld route, could someone just assure me this is a
> fusion specific problem.  Andrew, could you attach the same drives to
> another QAS LLD, like aic79xx and verify the problem doesn't recur?

We can only reproduce this problem at a specific site which we no longer
have access to.  At that site, we had problems with both HP OEM'd Maxtor
and Fujitsu drives.  I also don't have any other u320 cards to try this
on other than Fusion.  Eric? Have you been able to reproduce this
problem on Linux at LSI?

> 
> If it's something drive specific, we probably need more of a blacklist
> in the spi transport class.

My guess is this is a drive/fusion interaction problem. 

Andrew