[PATCH] PCI: Mark Atheros AR9580 to avoid bus reset

[PATCH] PCI: Mark Atheros AR9580 to avoid bus reset

[Maik Broemme]

Similar to the AR93xx and the AR94xx series, the AR95xx also have the
same quirk for the Bus Reset. It will lead to instant system reset if
the device is assigned via VFIO to a KVM VM. I've been able reproduce
this behavior with a MikroTik R11e-2HnD.

Fixes: c3e59ee4e766 ("PCI: Mark Atheros AR93xx to avoid bus reset")
Signed-off-by: Maik Broemme <mbroemme@libmpq.org>
CC: stable@vger.kernel.org
---
 drivers/pci/quirks.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 37ff015..7d82189 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3198,6 +3198,7 @@ static void quirk_no_bus_reset(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0032, quirk_no_bus_reset);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0033, quirk_no_bus_reset);
 
 static void quirk_no_pm_reset(struct pci_dev *dev)
 {
-- 
2.9.2

Re: [PATCH] PCI: Mark Atheros AR9580 to avoid bus reset

[Bjorn Helgaas]

[+cc Chris, Alex]

On Tue, Aug 09, 2016 at 04:41:31PM +0200, Maik Broemme wrote:
> Similar to the AR93xx and the AR94xx series, the AR95xx also have the
> same quirk for the Bus Reset. It will lead to instant system reset if
> the device is assigned via VFIO to a KVM VM. I've been able reproduce
> this behavior with a MikroTik R11e-2HnD.
> 
> Fixes: c3e59ee4e766 ("PCI: Mark Atheros AR93xx to avoid bus reset")
> Signed-off-by: Maik Broemme <mbroemme@libmpq.org>
> CC: stable@vger.kernel.org

Applied to pci/virtualization for v4.9, thanks!

> ---
>  drivers/pci/quirks.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> index 37ff015..7d82189 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -3198,6 +3198,7 @@ static void quirk_no_bus_reset(struct pci_dev *dev)
>  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset);
>  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0032, quirk_no_bus_reset);
>  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset);
> +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0033, quirk_no_bus_reset);
>  
>  static void quirk_no_pm_reset(struct pci_dev *dev)
>  {
> -- 
> 2.9.2
> 
> --
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