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Message-ID: <c384c5ea0811180137l2f82147eqb0af68baac9ed4b2@mail.gmail.com> Date: Tue, 18 Nov 2008 10:37:21 +0100 From: "Leon Woestenberg" <leon.woestenberg@...il.com> To: "James Bottomley" <James.Bottomley@...senpartnership.com> Cc: "Andrew Morton" <akpm@...ux-foundation.org>, LKML <linux-kernel@...r.kernel.org>, "FUJITA Tomonori" <fujita.tomonori@....ntt.co.jp>, "Tejun Heo" <tj@...nel.org> Subject: Re: pci_map_sg() does not coalesce adjacent physical memory? x86 Hello all, On Tue, Nov 18, 2008 at 6:21 AM, James Bottomley <James.Bottomley@...senpartnership.com> wrote: > On Mon, 2008-11-17 at 19:15 -0800, Andrew Morton wrote: >> (cc's added) >> >> On Mon, 17 Nov 2008 22:54:33 +0100 "Leon Woestenberg" <leon.woestenberg@...il.com> wrote: >> > pci_map_sg() does not coalesce the scattergather list for me on x86. >> In which kernel version(s)? > 2.6.24 for x86, and 2.6.27 for powerpc. Sorry, this is a bogus report: I tried to isolate the scattergather implementation, thereby the dev pointer got NULL, which results in different dma_ops. I am bringing a freshly written driver upstream 'altpciechdma' for the Altera FPGA PCI Express Chaining DMA reference design. Will probably appear in staging RSN. Thanks for the help, -- Leon -- 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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