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    SubjectRe: [PATCH] 2.5.8 IDE 36
    The common thing I use byteswap for is to mount my tivo (kernel 2.1.x)
    drives on my PC (2.4/5.x). those drives are byteswapped throughout the
    entire drive, including the partition table.

    It sounds as if you are removing this capability, am I misunderstaning you
    or is there some other way to do this? (and duplicating the drive to use
    dd to byteswap is not practical for 100G+)

    David Lang

    On Tue, 16 Apr 2002, Martin Dalecki wrote:

    > Vojtech Pavlik wrote:
    > > On Tue, Apr 16, 2002 at 09:05:21AM +0200, Martin Dalecki wrote:
    > >
    > >>Tue Apr 16 01:02:47 CEST 2002 ide-clean-36
    > >>
    > >>- Consolidate ide_choose_drive() and choose_drive() in to one function.
    > >>
    > >>- Remove sector data byteswpapping support. Byte-swapping the data is supported
    > >> on the file-system level where applicable. Byte-swapped interfaces are
    > >> supported on a lower level anyway. And finally it was used inconsistently.
    > >
    > >
    > > Are you sure about this? I think file systems support LE/BE, but not
    > > byteswapping because of IDE being LE on a BE system.
    >
    > I'm sure about this. For the following reasons:
    >
    > 1. The removed functionality affected only sector data transfers.
    >
    > 2. The following code for interfaces with byte swapped BUS setups
    > still remains intact:
    >
    > #if defined(CONFIG_ATARI) || defined(CONFIG_Q40)
    > if (MACH_IS_ATARI || MACH_IS_Q40) {
    > /* Atari has a byte-swapped IDE interface */
    > insw_swapw(IDE_DATA_REG, buffer, bytecount / 2);
    > return;
    > }
    > #endif
    >
    > And indeed as you show - there was confusion about this issue
    > throughout the whole driver, since the taskfile_in(out)
    > functions where basically just the byteswapped variants and
    > where not uses consistently.
    >
    > -
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