[PATCH] PCI: add MSI INTX_DISABLE quirks for AR8161/AR8162/AR8171/AR8172/E210X

[Wei Yang]

On Fri, Mar 08, 2013 at 02:55:16AM +0800, xiong wrote:
>From: "Huang,Xiong" <xiong at qca.qualcomm.com>
>
>following PCIe Devices with revision lower than 0x18 have this bug:
>
> AR8161(1091)/AR8162(1090)/AR8171(10A1)/AR8172(10A0)/E210X(E091).
>
>Signed-off-by: Huang,Xiong <xiong at qca.qualcomm.com>

Reviewed-by: Wei Yang <weiyang at linux.vnet.ibm.com>

>---
> drivers/pci/quirks.c | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
>
>diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
>index 0369fb6..4273a2d 100644
>--- a/drivers/pci/quirks.c
>+++ b/drivers/pci/quirks.c
>@@ -2594,6 +2594,14 @@ static void quirk_msi_intx_disable_ati_bug(struct pci_dev *dev)
> 		dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
> 	pci_dev_put(p);
> }
>+static void quirk_msi_intx_disable_qca_bug(struct pci_dev *dev)
>+{
>+	/* AR816X/AR817X/E210X MSI is fixed at HW level from revision 0x18 */
>+	if (dev->revision < 0x18) {
>+		dev_info(&dev->dev, "set MSI_INTX_DISABLE_BUG flag\n");
>+		dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
>+	}
>+}
> DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
> 			PCI_DEVICE_ID_TIGON3_5780,
> 			quirk_msi_intx_disable_bug);
>@@ -2643,6 +2651,16 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1073,
> 			quirk_msi_intx_disable_bug);
> DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1083,
> 			quirk_msi_intx_disable_bug);
>+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1090,
>+			quirk_msi_intx_disable_qca_bug);
>+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1091,
>+			quirk_msi_intx_disable_qca_bug);
>+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a0,
>+			quirk_msi_intx_disable_qca_bug);
>+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a1,
>+			quirk_msi_intx_disable_qca_bug);
>+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0xe091,
>+			quirk_msi_intx_disable_qca_bug);
> #endif /* CONFIG_PCI_MSI */
>
> /* Allow manual resource allocation for PCI hotplug bridges
>-- 
>1.7.11.7
>
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-- 
Richard Yang
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