releases/4.8.5/pci-mark-atheros-ar9580-to-avoid-bus-reset.patch

   1 From 8e2e03179923479ca0c0b6fdc7c93ecf89bce7a8 Mon Sep 17 00:00:00 2001
   2 From: Maik Broemme <mbroemme@libmpq.org>
   3 Date: Tue, 9 Aug 2016 16:41:31 +0200
   4 Subject: PCI: Mark Atheros AR9580 to avoid bus reset
   5
   6 From: Maik Broemme <mbroemme@libmpq.org>
   7
   8 commit 8e2e03179923479ca0c0b6fdc7c93ecf89bce7a8 upstream.
   9
  10 Similar to the AR93xx and the AR94xx series, the AR95xx also have the same
  11 quirk for the Bus Reset.  It will lead to instant system reset if the
  12 device is assigned via VFIO to a KVM VM.  I've been able reproduce this
  13 behavior with a MikroTik R11e-2HnD.
  14
  15 Fixes: c3e59ee4e766 ("PCI: Mark Atheros AR93xx to avoid bus reset")
  16 Signed-off-by: Maik Broemme <mbroemme@libmpq.org>
  17 Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
  18 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  19
  20 ---
  21  drivers/pci/quirks.c |    1 +
  22  1 file changed, 1 insertion(+)
  23
  24 --- a/drivers/pci/quirks.c
  25 +++ b/drivers/pci/quirks.c
  26 @@ -3198,6 +3198,7 @@ static void quirk_no_bus_reset(struct pc
  27  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset);
  28  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0032, quirk_no_bus_reset);
  29  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset);
  30 +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0033, quirk_no_bus_reset);
  31
  32  static void quirk_no_pm_reset(struct pci_dev *dev)
  33  {