Messages in this thread | | | From | "Christian Brunner" <> | Date | Thu, 18 Sep 1997 10:00:21 +0200 (MET DST) | Subject | Re: IDE Ultra DMA patch |
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I wonder if:
"Ultra DMA TX patch" + "Generic DMA patch" = "Generic Ultra DMA patch"
However I don't have any "Ultra" hardware (not even an Ultra Sparc .-( ), so I can't test it. But I won't be surprised if this would work, too. Except for some of those printk lines in this patch, which I suspect to produce "random numbers" on the screen with non-Intel chips.
Bye, Christian
On Wed, 17 Sep 1997, Kim-Hoe Pang wrote:
> > Hi, > > This patch will enable Ultra DMA data transfer protocol on the IDE > interface in the Intel TX motherboard. This patch is against 2.1.55 > kernel. Use the BIOS setup to enable the IDE drive for UDMA. > If all go well, look for status message in the "dmesg" output. > If UDMA is not enabled in the BIOS, then the patch will select the > normal dma transfer mode for the IDE interface. > To disable the DMA mode, use "hdparm -d0 /dev/hdx". > > Note on UDMA: don't expect to see a 2x boost in the disk transfer > rate. In fact the increase is only about 5 to 10 % for the current > generation drive. The instantaneous transfer however, as seen on a logic > analyser, does meet the spec. of 60ns/word. > > > Kim-Hoe
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