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    SubjectRe: [PATCH] libata: remove experimental tag on PATA drivers
    El Fri, 13 Nov 2009 18:25:15 +0000
    Alan Cox <> escribió:

    > > - ATAPI DMA is still broken
    > Not experimental as we default to not doing ATAPI DMA. Glancing over the
    > code I notice the ALI C2/C3 workaround probably wants adding to the old
    > driver as it can do nasty things otherwise. (See the reset function in
    > the pata_ali driver)

    FWIW I have a Motherboard with Ali chipset and have been using ATAPI DMA
    (forcing it via proc) without issues since the DMA was disabled by default.

    lspci -v
    IDE interface: ALi Corporation M5229 IDE (rev c7) (prog-if 8a [Master SecP PriP])
    Subsystem: ASRock Incorporation Device 5229
    Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 21
    [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [disabled] [size=8]
    [virtual] Memory at 000003f0 (type 3, non-prefetchable) [disabled] [size=1]
    [virtual] Memory at 00000170 (32-bit, non-prefetchable) [disabled] [size=8]
    [virtual] Memory at 00000370 (type 3, non-prefetchable) [disabled] [size=1]
    I/O ports at ff00 [size=16]
    Capabilities: <access denied>
    Kernel driver in use: pata_ali
    Kernel modules: ata_generic


    > Alan
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