• Jeff Garzik's avatar
    libata/IDE: remove combined mode quirk · 8cdfb29c
    Jeff Garzik authored
    Both old-IDE and libata should be able handle all controllers and
    devices found using normal resource reservation methods.
    This eliminates the awful, low-performing split-driver configuration
    where old-IDE drove the PATA portion of a PCI device, in PIO-only mode,
    and libata drove the SATA portion of the /same/ PCI device, in DMA mode.
    Typically vendors would ship SATA hard drive / PATA optical
    configuration, which would lend itself to slow (PIO-only) CD-ROM
    For Intel users running in combined mode, it is now wholly dependent on
    your driver choice (potentially link order, if you compile both drivers
    in) whether old-IDE or libata will drive your hardware.
    In either case, you will get full performance from both SATA and PATA
    ports now, without having to pass a kernel command line parameter.
    Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
c3000_defconfig 26.6 KB