linux-kernel - Re: [PATCH] Quirk to support Marvell 88SE91xx SATA controllers with Intel IOMMU.

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Message-ID: <CAJtEV7bvPORPoXgQY2OahNVMj+SY5z=xxQ=nueX7=kLVfpyF_A@mail.gmail.com>
Date:	Mon, 4 Mar 2013 09:35:13 +0800
From:	Andrew Cooks <acooks@...il.com>
To:	Justin Piszcz <jpiszcz@...idpixels.com>
Cc:	Joerg Roedel <joro@...tes.org>, YingChu <xjtuychu@...mail.com>,
	Chu Ying <gm.ychu@...il.com>,
	Alex Williamson <alex.williamson@...hat.com>,
	"bhelgaas@...gle.com" <bhelgaas@...gle.com>,
	David Woodhouse <dwmw2@...radead.org>,
	"open list:INTEL IOMMU (VT-d)" <iommu@...ts.linux-foundation.org>,
	open list <linux-kernel@...r.kernel.org>,
	"open list:PCI SUBSYSTEM" <linux-pci@...r.kernel.org>
Subject: Re: [PATCH] Quirk to support Marvell 88SE91xx SATA controllers with
 Intel IOMMU.

On Sat, Mar 2, 2013 at 7:18 AM, Justin Piszcz <jpiszcz@...idpixels.com> wrote:
>
> Against a clean 3.7.10 (from ftp.kernel.org)
>
> # patch -p1 <
> ../patch/RFC-Fix-Intel-IOMMU-support-for-Marvell-88SE91xx-SATA-controllers..
> patch
> patching file drivers/iommu/intel-iommu.c
> patching file drivers/pci/quirks.c
> Hunk #1 succeeded at 3230 (offset 3 lines).
> patching file include/linux/pci.h
> # pwd
> /usr/src/linux-3.7.10
>

I've downloaded and patched the 3.7.10 tarball and still get the same
output I got before; different output from yours. I'm not sure the
patch is complete or applying correctly, are you?
Could you please check whether the patch you're applying is the same
as the attached file?

> Full dmesg with the patch applied: (but with IOMMU off)
> http://home.comcast.net/~jpiszcz/20130301/dmesg-full.txt
>
> Full dmesg (as much as possible through netconsole with IOMMU on)
> http://home.comcast.net/~jpiszcz/20130301/dmesg-iommu-on.txt
>
> Let me know if anything else is needed, thanks.

I think some important error messages might have been lost here.

You captured a complete dmesg at
https://home.comcast.net/~jpiszcz/20121128/dmesg.txt
with iommu on. Are you still able to get the same with 3.7.10 if you
exclude this patch, or has something else changed?

a.

Download attachment "marvell_ghost_funcs.patch" of type "application/octet-stream" (7298 bytes)