Hi,
On Wednesday 13 February 2008, Borislav Petkov wrote:
> On Tue, Feb 12, 2008 at 10:39:22PM +0100, Bartlomiej Zolnierkiewicz wrote:
>
> Hi Bart,
>
> > I think that this _really_ should be done _after_ unifying ATAPI handling
> > [*].
> > Otherwise you will be making some of the same changes to the _three_ copies
> > of (more or less) identical code and more importantly we will have to delay
> > unification after _all_ drivers are converted to rq->cmd[] (+ lets not
> > forget
> > that I'll have more changes to review ;).
> >
> > (*) please take a closer look at *_issue_pc(), *_transfer_pc() and
> > *_pc_intr()
> > in ide-{floppy,tape,scsi} (the useful hint is that after making these
> > functions free of references to device driver specific objects/functions
> > we can use drive->media == ide_{floppy,tape,scsi} checks for handling
> > not yet fully unified / media type specific code).
>
> I started working on probably the easiest unification we could do: unify all
> the
> pc->flags defines and move them in a header where all drivers can use them.
> This
Yep.
> raises an architectural design question: The way i see it, the generic ATAPI
> handling
> is going to be sort of "serving" functionality to the drivers using ATAPI. Do
> we want
> all this functionality to go to ide.{h,c} or we want specific atapi.{h,c}
> files that
> contain only this unified functionality, or whatever else. In general, how is
> this
> generic layer going to be distributed among headers/.c files and what do we
> want there?
>
> /me tends to think that special headers/files, small and easy to manage and
> modular, have more advantages in this case but this is just me. After we've
> decided on that, the rest of the issues will resolve by themselves/get easier
> to
> tackle.
I think that:
drivers/ide/ide-atapi.c
include/linux/ide.h
should be fine for now...
Moving code around is trivial so we can always fixup before pushing upstream.
Thanks,
Bart
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