From mboxrd@z Thu Jan  1 00:00:00 1970
From: Oliver Neukum <oliver@neukum.org>
Subject: Re: [linux-usb-devel] Re: Unaligned scatter-gather buffers and usb-storage
Date: Wed, 19 Nov 2003 14:01:34 +0100
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References: <20031110095914.B22518@beaverton.ibm.com> <20031118143720.A6411@beaverton.ibm.com> <20031119084729.GA1106@suse.de>
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To: Jens Axboe <axboe@suse.de>, Patrick Mansfield <patmans@us.ibm.com>
Cc: Alan Stern <stern@rowland.harvard.edu>, Douglas Gilbert <dougg@torque.net>, SCSI development list <linux-scsi@vger.kernel.org>, USB development list <linux-usb-devel@lists.sourceforge.net>


> > You could add a scsi_host fields or bits specifying alignment
> > restrictions, and enforce them as needed in upper level drivers.
> 
> The queue already has such a restriction embedded, see bio_map_user()
> and queue_dma_alignment().

Very well, as far as sd and sr are concerned, but it doesn't help for
sg and st, does it?

	Regards
		Oliver