Displaying 1 result from an estimated 1 matches for "ata_dma_limit".
2013 Feb 01
1
stable/9: Force ada1 to UDMA-33
...-ribbon cable), but the
frame isn't compatible with that. By default, FreeBSD
negotiates UDMA-100, and the console starts to fill with
ICRC errors.
In the past, I used a patch to ata-all.c that enabled the
following entry in loader.conf to force the disk to UDMA-33,
so it worked fine:
hw.ata.ata_dma_limit="2"
But with the "new world", that doesn't work anymore.
What is the proper way with ATA_CAM and ada(4) to force a
P-ATA disk to a lower UDMA mode?
Best regards
Oliver
PS: Excerpt from dmesg ...
atapci0: <VIA 8235 UDMA133 controller> port 0x1f0-0x1f7,0x3f6,0x17...