Date: Sun, 8 Jun 2003 22:45:04 +0100
From: Hugo Mills <hugo-lkml@carfax.org.uk>
To: Alan Cox <alan@redhat.com>
Cc: Samuel Flory <sflory@rackable.com>, linux-kernel@vger.kernel.org,
       linux-ide@vger.kernel.org, andre@linux-ide.org
Subject: Re: [PATCH][RFC] Add support for Adaptec 1210SA (was: Re: SiI3112 (Adaptec 1210SA): no devices)
Message-ID: <20030608214504.GA5754@carfax.org.uk>
Mail-Followup-To: Hugo Mills <hugo-lkml@carfax.org.uk>,
	Alan Cox <alan@redhat.com>, Samuel Flory <sflory@rackable.com>,
	linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org,
	andre@linux-ide.org
References: <20030607175637.GA1266@carfax.org.uk> <200306071802.h57I2Yb07842@devserv.devel.redhat.com>
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On Sat, Jun 07, 2003 at 02:02:34PM -0400, Alan Cox wrote:
> >    I've assumed that it's exactly like a SiI3112 in making these
> > changes. The kernel now recognises the device, and I can (e.g.) run
> > cfdisk. However, any read or write on the disk causes huge delays, and
> > these:
> 
> Its clearly clos in that it works in PIO although DMA is failing

   Given that there appear to be problems with DMA in the plain SiI
driver, would it be worth my while waiting until those are sorted out
before continuing?

> >    I don't have the knowledge to determine whether this is similar to
> > the SiI3112 problems people have been having elsewhere, or if it's a
> 
> It is

   That's good to know.

> >  Model=ST3120026AS, FwRev=3.05, SerialNo=3JT059GT
> 
> According to the info I have that drive should be working ok

   I recall Andre Hedrick commenting apparently disparagingly on the
80Gb version of the Seagate drives[1], although I don't get the errors
seen in that post.

> This is a very good starting point anyway

   What would be the next steps in getting this thing working?  Should
I try to obtain the board/chip specifications from Adaptec? Or start
poking stuff into arbitrary registers? :)

   Hugo.

[1] http://marc.theaimsgroup.com/?l=linux-kernel&m=105013509721375&w=2

-- 
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
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