It means two things:

(a) There is a bug in drivers/ide/pci/pdc202xx_new.c:init_hwif_pdc202new(),
    hwif->autodma shouldn't be set to 0 or "idex=dma" parameter won't work.

(b) If you don't use autodma you have to tune desired mode _explicitly_ first,
    because most of ->ide_dma_check() implementations (for pdc202xx_new.c
    it is pdcnew_config_drive_xfer_rate()) check for hwif->autodma.

--bart

On Saturday 29 of November 2003 02:52, John Goerzen wrote:

On Fri, Nov 28, 2003 at 02:00:55PM +0100, Bartlomiej Zolnierkiewicz wrote:

quoted

My mistake, it should have been -Xudma5 :-).

I tried the ide2=dma in the kernel and then:

hdparm -d 1 -u 1 -X 69 /dev/hde

That did seem to solve the problem.  Output of hdparm after that
command:

pi:~# hdparm /dev/hde

/dev/hde:
 multcount    = 16 (on)
 IO_support   =  0 (default 16-bit)
 unmaskirq    =  0 (off)
 using_dma    =  1 (on)
 keepsettings =  0 (off)
 readonly     =  0 (off)
 readahead    =  8 (on)
 geometry     = 19929/255/63, sectors = 320173056, start = 0

What does that mean?