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Date: Tue, 23 Oct 2007 18:18:54 -0700 From: "Nelson, Shannon" <shannon.nelson@...el.com> To: "Andrew Morton" <akpm@...ux-foundation.org> Cc: <linux-kernel@...r.kernel.org>, "Williams, Dan J" <dan.j.williams@...el.com> Subject: RE: [PATCH] I/OAT: Add support for version 2 of ioatdma device >From: Andrew Morton [mailto:akpm@...ux-foundation.org] >On Fri, 19 Oct 2007 00:20:25 -0700 >Shannon Nelson <shannon.nelson@...el.com> wrote: > >> Add support for version 2 of the ioatdma device. This device handles >> the descriptor chain and DCA services slightly differently: >> - Instead of moving the dma descriptors between a busy and >an idle chain, >> this new version uses a single circular chain so that we >don't have >> rewrite the next_descriptor pointers as we add new >requests, and the >> device doesn't need to re-read the last descriptor. >> - The new device has the DCA tags defined internally >instead of needing >> them defined statically. >> Andrew, Thank you for your time and the review comments. I'll attend to the details and repost. sln - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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