Tejun Heo wrote:
ATAPI DMA just doesn't work reliably on pata_ali. The IDE driver can do it but for some mysterious reason, pata_ali can't. This patch disables it by default and makes the driver whine during initialization. "pata_ali.atapi_dma" parameter is added so that user can bypass the workaround. Signed-off-by: Tejun Heo <htejun@xxxxxxxxx> --- I just had another run with pata_ali. I tried various things w/o any success. I just can't see what's the difference between alim15x3 and pata_ali. I again tried to make the command issue path of pata_ali + libata behave virtually identical to alim15x3 but it just didn't work. :-( :-( :-( drivers/ata/pata_ali.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+)
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