linux-kernel - Re: [PATCH] target: Handle ATA_PASS_THROUGH

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Date:	Wed, 16 May 2012 08:38:09 +0100
From:	James Bottomley <James.Bottomley@...senPartnership.com>
To:	mc@...ux.vnet.ibm.com
Cc:	target-devel@...r.kernel.org,
	"Nicholas A. Bellinger" <nab@...ux-iscsi.org>,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
	Stefan Hajnoczi <stefanha@...ux.vnet.ibm.com>
Subject: Re: [PATCH] target: Handle ATA_PASS_THROUGH_16 passthrough

On Wed, 2012-05-16 at 13:33 +0800, mengcong wrote:
> The cdrecord uses ATA_PASS_THROUGH_16 command while burning CDs
> with a SATA CD-ROM. This patch adds support to it so that PSCSI 
> CD-ROM passthrough works with the cdrecord.
> 
> Signed-off-by: Cong Meng <mc@...ux.vnet.ibm.com>
> ---
[...]
> diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
> index f34a5a8..f6dcd25 100644
> --- a/include/scsi/scsi.h
> +++ b/include/scsi/scsi.h
> @@ -116,6 +116,7 @@ struct scsi_cmnd;
>  #define PERSISTENT_RESERVE_IN 0x5e
>  #define PERSISTENT_RESERVE_OUT 0x5f
>  #define VARIABLE_LENGTH_CMD   0x7f
> +#define ATA_PASS_THROUGH_16   0x85
>  #define REPORT_LUNS           0xa0
>  #define SECURITY_PROTOCOL_IN  0xa2
>  #define MAINTENANCE_IN        0xa3

We already have this: they're called ATA_16 (and ATA_12) in this very
file.

James


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