Jens Axboe wrote:
Saw the posts on this the other day and had a few spare hours to play
with this. Works for me, with and without DMA (didn't test mult mode,
but that should work fine too).
Test with caution though, it's changing the ide code so could eat your
data if there's a bug there... Most clever OS's don't use lba48 even for
lba48 capable drives, unless the device is > 2^28 sectors and the
current request is past that (but they could be taking advantage of the
larger transfer size possible, in which case lba48 will be used even for
low sectors...).
Thank you for the patch ! At least two details should be corrected
before I can apply it:
1) Each duplicated IDE register acts as a 2 byte FIFO, so the logic you
added in the write function should be modified (the regs_written field
is not needed).
2) The read back logic should be implemented (HOB bit in the device
control register).
Fabrice.
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