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Message-ID: <1452287726.29599.230.camel@redhat.com>
Date: Fri, 08 Jan 2016 14:15:26 -0700
From: Alex Williamson <alex.williamson@...hat.com>
To: Bjorn Helgaas <helgaas@...nel.org>,
Tim Sander <tim@...eglstein.org>
Cc: linux-kernel@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>,
linux-pci@...r.kernel.org
Subject: Re: [PATCH] PCI: Add quirk for Lite-On IT Corp. / Plextor M6e PCI
Express
On Fri, 2016-01-08 at 14:49 -0600, Bjorn Helgaas wrote:
> [+cc Alex]
>
> On Mon, Jan 04, 2016 at 05:47:14PM +0100, Tim Sander wrote:
> > Hi
> >
> > Please consider this patch for the next release. It won't recognize
> > my Plextor
> > M6e PCIE disk without it. Please cc as i am not on the list.
> >
> > Signed-off-by: Tim Sander <tim@...eglstein.org>
> >
> > PCI: Add quirk for Lite-On IT Corp. / Plextor M6e PCI Express SSD
> > [Marvell 88SS9183] (rev 14)
>
> Alex?
Aside from the style issues you've already commented on, I'll give a
thumbs up to quirking this device. Thanks,
Alex
> Please use a subject line that matches the other similar commits:
>
> 247de694349c PCI: Add function 1 DMA alias quirk for Marvell 9120
> c2e0fb966ad8 PCI: Add function 1 DMA alias quirk for HighPoint
> RocketRaid 642L
> cc346a4714a5 PCI: Add function 1 DMA alias quirk for Marvell
> devices
>
> > ---
> > drivers/pci/quirks.c | 4 ++++
> > include/linux/pci_ids.h | 3 +++
> > 2 files changed, 7 insertions(+)
> >
> > diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> > index 7e32730..93ec5a02 100644
> > --- a/drivers/pci/quirks.c
> > +++ b/drivers/pci/quirks.c
> > @@ -3620,6 +3620,10 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TTI,
> > 0x0642,
> > DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_JMICRON,
> > PCI_DEVICE_ID_JMICRON_JMB388_ESD,
> > quirk_dma_func1_alias);
> > +/* https://bugzilla.kernel.org/show_bug.cgi?id=42679 */
>
> Thanks for the link. There are 126 comments on that bugzilla so far,
> so it'd be nice to have a more specific pointer. I'm guessing 117
> might be the relevant one, so:
>
> https://bugzilla.kernel.org/show_bug.cgi?id=42679#c117
>
> > +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_LITE_ON,
> > + PCI_DEVICE_ID_PLEXTOR_M6E,
> > + quirk_dma_func1_alias);
> >
> > /*
> > * Some devices DMA with the wrong devfn, not just the wrong
> > function.
> > diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
> > index d9ba49c..01d8041 100644
> > --- a/include/linux/pci_ids.h
> > +++ b/include/linux/pci_ids.h
> > @@ -2501,6 +2501,9 @@
> >
> > #define PCI_VENDOR_ID_ASMEDIA 0x1b21
> >
> > +#define PCI_VENDOR_ID_LITE_ON 0x1c28
> > +#define PCI_DEVICE_ID_PLEXTOR_M6E 0x0122
>
> Since these constants are only used in one place, don't add them to
> pci_ids.h (see comment at the top of this file). Just use the hex
> constants directly in the quirk and include the vendor/device names
> in
> the comment.
>
> > #define PCI_VENDOR_ID_CIRCUITCO 0x1cc8
> > #define PCI_SUBSYSTEM_ID_CIRCUITCO_MINNOWBOARD 0x0001
> >
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