Messages in this thread | | | Date | Fri, 2 Nov 2007 19:12:27 +0200 | From | Muli Ben-Yehuda <> | Subject | Re: [PATCH -mm 0/3] convert IOMMUs to use iova |
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On Sat, Nov 03, 2007 at 02:05:39AM +0900, FUJITA Tomonori wrote:
> This patchset convert the PPC64 IOMMU to use the iova code for free > area management. > > The IOMMUs ignores low level drivers' restrictions, the maximum > segment size and segment boundary. > > I fixed the former: > > http://thread.gmane.org/gmane.linux.scsi/35602 > > The latter makes the free area management complicated. I'd like to > convert IOMMUs to use the iova code (that intel-iommu introduced) > for free area management and enable iova to handle segment boundary > restrictions, rather than fixing all the IOMMUs' free area > management,
In general it sounds like a great idea, but have you looked at what impact this has on the performance of the IO path?
Cheers, Muli - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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