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(parent: 5ad6c78) | patch
Enable multi-word DMA mode 2 for the PIIX3 chipset
authoradsharma@los-vmm.sc.intel.com <adsharma@los-vmm.sc.intel.com>
Mon, 15 Aug 2005 20:28:07 +0000 (12:28 -0800)
committeradsharma@los-vmm.sc.intel.com <adsharma@los-vmm.sc.intel.com>
Mon, 15 Aug 2005 20:28:07 +0000 (12:28 -0800)
commitba0b7b0bd806c66136d6ae51081879a494d98257
tree6d1bad6e9febfc0ac52b267819601c149e349809tree | snapshot
parent5ad6c78d0d25bc1fce3e89f3827853c582a169c1commit | diff
Enable multi-word DMA mode 2 for the PIIX3 chipset

Without this patch, Linux PIIX3 driver would see ultra DMA and get confused
and ended up disabling DMA.

With the patch, we're able to see 3x increase in disk read throughput.

Signed-off-by: Winston Wang <winston.l.wang@intel.com>
Signed-off-by: Arun Sharma <arun.sharma@intel.com>
tools/ioemu/hw/ide.c diff | blob | history
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