linux-kernel - Re: [PATCH 1/1] scsi: retrieve cache mode using ATA

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Date:	Tue, 13 Dec 2011 12:53:02 +0400
From:	James Bottomley <James.Bottomley@...senPartnership.com>
To:	Namjae Jeon <linkinjeon@...il.com>
Cc:	Amit Sahrawat <amit.sahrawat83@...il.com>,
	Nam-Jae Jeon <namjae.jeon@...sung.com>,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] scsi: retrieve cache mode using ATA_16 if normal
 routine fails

On Tue, 2011-12-13 at 09:20 +0900, Namjae Jeon wrote:
> > This whole patch looks like a layering violation.  Why not just update
> > the SAT layer to translate the MODE SENSE correctly?
> Would plz you explain more ? I didn't clearly understand your point yet.

The ATA layer does translation for SCSI commands.  Just translate the
mode sense correctly to use IDENTIFY word 85.  It's a smaller patch and
no need for any changes in SCSI.

Actually, looking at it, it seems to be correct ... why is it not
working for you?

James


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