• Albert Lee's avatar
    pdc202xx_new: Enable ATAPI DMA · 362ebd83
    Albert Lee authored
    [ bart: the ressurection of 2 years old patch which slipped thru the cracks
      (thanks to Sergei Shtylyov for finding it) ]
    These is the patch to turn on pdc202xx_new for ATAPI DMA.  When testing, it
    works fine without the (request_bufflen % 256) workaround as needed in libata.
    ide-scsi filters out (pc->request_transfer % 1024) and use PIO, so the pdc202xx
    ATAPI DMA problem is avoid.  Both ide-cd and ide-scsi won't hit the ATAPI DMA
    problem on pdc202xx_new.
    Signed-off-by: default avatarAlbert Lee <albertcc@tw.ibm.com>
    Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
pdc202xx_new.c 18.4 KB