Re: Issue with AHCI driver

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Update:

We got Fedora 2.6.25-14 build running.  It recognizes our card.  It identifies our device but at some point after that we die.  Using an analyzer we found that the problem is due to a buffer alignment issue.

Our card is a prototype and currently under development.  It currently only supports memory buffers that are quadword aligned.  We are dying because we get a buffer for a subsequent identify command that is on a dword boundary.  That is the problem we need to solve next.

We know we need to change our hardware and we will do that.  However, is there a way during driver init to specify quadword buffer alignment so we can continue our testing with Linux?

Thanks again for all your help - we really appreciate it.
Bob H.

-----Original Message-----
>From: Tejun Heo <tj@xxxxxxxxxx>
>Sent: Aug 6, 2008 7:15 PM
>To: the4hoffmans@xxxxxxxxxxxxx
>Cc: Jeff Garzik <jgarzik@xxxxxxxxx>, linux-ide@xxxxxxxxxxxxxxx, blward@xxxxxxxxxx
>Subject: Re: Issue with AHCI driver
>
>the4hoffmans@xxxxxxxxxxxxx wrote:
>> which would you recommend?  We tried 2.6.24.7 and saw problems...
>
>The latest one 2.6.26.2.  Hmmm.. IIRC 2.6.24.7 should have the class
>code matching tho.  Anyways, please give a shot at 2.6.26.2.
>
>-- 
>tejun

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