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(parent: c004ce5) | 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 20:50:38 +0000 (12:50 -0800)
committeradsharma@los-vmm.sc.intel.com <adsharma@los-vmm.sc.intel.com>
Mon, 15 Aug 2005 20:50:38 +0000 (12:50 -0800)
commitf04c4b32acf1d249113cc9e38606089000e22a55
tree83b183d099973b382c17370945c34bfdc65b40f5tree | snapshot
parentc004ce577213e5ba00d8d6ec9573bb9200207dcccommit | 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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