On Wed, Nov 19 2003, Oliver Neukum wrote:
> 
> > > 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?

They both have a queue through the scsi device structure. But you could
put the value someplace else if you wanted.

-- 
Jens Axboe



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