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From: "Leon Woestenberg" <leon.woestenberg@gmail.com>
To: "James Bottomley" <James.Bottomley@hansenpartnership.com>
Cc: "Andrew Morton" <akpm@linux-foundation.org>,
	LKML <linux-kernel@vger.kernel.org>,
	"FUJITA Tomonori" <fujita.tomonori@lab.ntt.co.jp>,
	"Tejun Heo" <tj@kernel.org>
Subject: Re: pci_map_sg() does not coalesce adjacent physical memory? x86
Date: Tue, 18 Nov 2008 10:37:21 +0100	[thread overview]
Message-ID: <c384c5ea0811180137l2f82147eqb0af68baac9ed4b2@mail.gmail.com> (raw)
In-Reply-To: <1226985689.3403.20.camel@localhost.localdomain>

Hello all,

On Tue, Nov 18, 2008 at 6:21 AM, James Bottomley
<James.Bottomley@hansenpartnership.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@gmail.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

  reply	other threads:[~2008-11-18  9:37 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-17 21:54 Leon Woestenberg
2008-11-18  3:15 ` Andrew Morton
2008-11-18  5:21   ` James Bottomley
2008-11-18  9:37     ` Leon Woestenberg [this message]
2008-11-19  5:19   ` FUJITA Tomonori
2008-11-19  6:22     ` Leon Woestenberg
2008-11-19  6:58       ` FUJITA Tomonori
2008-11-19  7:05         ` FUJITA Tomonori
2008-11-19  7:58         ` FUJITA Tomonori
2008-11-19  9:45           ` Leon Woestenberg
2008-11-19 10:05             ` Tejun Heo

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