hw.ata.atapi_dma in 5.4-RELEASE-p1
Holger Kipp
hk at alogis.com
Sun May 22 11:09:23 PDT 2005
On Sun, May 22, 2005 at 08:29:58AM -0700, Janet Sullivan wrote:
> I am unable to get my DVD or CD drives out of PIO4 mode on two machines.
> One has an ICH3 controller, the other is Nforce2 based.
>
> When I put hw.ata.atapi_dma="1" in /boot/loader.conf and reboot, I'm
> still stuck in PIO4. What am I doing wrong?
Have you tried something like
atacontrol mode 1 UDMA6 UDMA6
to change the mode to the highest values possible?
I have
katrin# atacontrol info 1
Master: acd0 <HL-DT-ST DVDRAM GSA-4163B/A102> ATA/ATAPI revision 5
Slave: acd1 <HL-DT-ST RW/DVD GCC-4120B/2.01> ATA/ATAPI revision 0
katrin# atacontrol info 0
Master: ad0 <SAMSUNG SP1614N/TM100-30> ATA/ATAPI revision 7
Slave: ad1 <SAMSUNG SP0802N/TK100-24> ATA/ATAPI revision 7
with
katrin# atacontrol mode 1
Master = UDMA33
Slave = PIO4
after boot and end up with
katrin# atacontrol mode 1 UDMA6 UDMA6
Master = UDMA33
Slave = WDMA2
Usually I only use acd0, so I didn't care (real life runs
at a higher priority <g> right now).
Regards,
Holger
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