Commit 8e2e0317 authored Aug 09, 2016 by Maik Broemme Committed by Bjorn Helgaas Aug 18, 2016

PCI: Mark Atheros AR9580 to avoid bus reset



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: c3e59ee4 ("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+

parent 29b4817d

drivers/pci/quirks.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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)
		{

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