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From: Bjorn Helgaas <helgaas@kernel.org>
To: Alex Williamson <alex.williamson@redhat.com>
Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-nvme@lists.infradead.org
Subject: Re: [PATCH v3 3/3] PCI: Intel DC P3700 NVMe delay after FLR quirk
Date: Thu, 9 Aug 2018 14:35:53 -0500
Message-ID: <20180809193553.GD113140@bhelgaas-glaptop.roam.corp.google.com> (raw)
In-Reply-To: <20180724101849.36f635eb@t450s.home>

On Tue, Jul 24, 2018 at 10:18:48AM -0600, Alex Williamson wrote:
> On Tue, 24 Jul 2018 10:14:46 -0600
> Alex Williamson <alex.williamson@redhat.com> wrote:
> 
> > Add a device specific reset for Intel DC P3700 NVMe device which
> > exhibits a timeout failure in drivers waiting for the ready status to
> > update after NVMe enable if the driver interacts with the device too
> > quickly after FLR.  As this has been observed in device assignment
> > scenarios, resolve this with a device specific reset quirk to add an
> > additional, heuristically determined, delay after the FLR completes.
> > 
> > Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
> > ---
> >  drivers/pci/quirks.c |   22 ++++++++++++++++++++++
> >  1 file changed, 22 insertions(+)
> 
> I forgot to link the bz in this one, if this somehow becomes the final
> version, please add:
> 
> Link: https://bugzilla.redhat.com/show_bug.cgi?id=159265

Corrected link to: https://bugzilla.redhat.com/show_bug.cgi?id=1592654

      reply index

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-24 16:14 [PATCH v3 0/3] PCI: NVMe reset quirks Alex Williamson
2018-07-24 16:14 ` [PATCH v3 1/3] PCI: Export pcie_has_flr() Alex Williamson
2018-07-24 16:14 ` [PATCH v3 2/3] PCI: Samsung SM961/PM961 NVMe disable before FLR quirk Alex Williamson
2018-07-24 19:53   ` Minwoo Im
2018-07-24 20:09     ` Alex Williamson
2018-07-24 16:14 ` [PATCH v3 3/3] PCI: Intel DC P3700 NVMe delay after " Alex Williamson
2018-07-24 16:18   ` Alex Williamson
2018-08-09 19:35     ` Bjorn Helgaas [this message]

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