Re: [PATCH AUTOSEL 3.18 13/98] PCI: Mark Atheros AR9580 to avoid bus reset

Tom Psyborg
2018-10-25T20:33:19Z

On 25/10/2018, Sasha Levin <sashal@kernel.org> wrote:
> From: Maik Broemme <mbroemme@libmpq.org>
>
> [ Upstream commit 8e2e03179923479ca0c0b6fdc7c93ecf89bce7a8 ]
>
> 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>
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
> CC: stable@vger.kernel.org # v3.14+
> Signed-off-by: Sasha Levin <sashal@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 9e86ace95832..0b75b47a5329 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -3081,6 +3081,7 @@ 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);
>
> #ifdef CONFIG_ACPI
> /*
> --
> 2.17.1
>
>

Hi

You should CC this to linux-wireless list too