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Date: Wed, 24 Nov 2010 17:47:22 +0100
From: Christoph Hellwig <hch@lst.de>
Subject: Re: [Qemu-devel] Re: [PATCH 0/5]
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To: Stefan Hajnoczi <stefanha@gmail.com>
Cc: Kevin Wolf <kwolf@redhat.com>, qemu-devel <qemu-devel@nongnu.org>, "Nicholas A. Bellinger" <nab@linux-iscsi.org>, Gerd Hoffmann <kraxel@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Hannes Reinecke <hare@suse.de>

On Wed, Nov 24, 2010 at 01:38:59PM +0000, Stefan Hajnoczi wrote:
> I don't know the Linux SCSI stack, so some basic questions for you :).
> 
> With scsi-generic I can send SCSI commands to a device.  How is bsg
> different?  The bsg code looks cleaner than sg but they both boil down
> to issuing SCSI requests using the Linux block layer AFAICT.

It's basically a new version of the sg driver with additional features,
and also dropping some old legacy features.