Subject: Re: Adaptec SATA RAID 2410SA driver (PR kern/30456)
To: Scott Long <scottl@samsco.org>
From: D'Arcy J.M. Cain <darcy@NetBSD.org>
List: tech-kern
Date: 06/30/2005 09:56:01
On Wed, 29 Jun 2005 21:35:43 -0600
Scott Long <scottl@samsco.org> wrote:
> > Sure, but then you are truncating it to 32-bits.  That is probably 
> > not  what is intended by the code (note I haven't read this code
> > yet).
> 
> I moderized this a couple of years ago in the FreeBSD driver.  You are
> correct that the logic needs to be changed to use an index instead of
> a pointer.  Unfortunately, the firmware thinks that it has magic
> knowledge of this being a pointer, so a little bit of extra work is
> involved.  You might also want to consider implementing the fast
> reponse bit, which abuses this field some more.  I'm happy to answer
> questions.

Do you have any pointers to programming this device?  I tried following
the FreeBSD code but without knowing what it is trying to do it is
difficult.

-- 
D'Arcy J.M. Cain <darcy@NetBSD.org>
http://www.NetBSD.org/