PCI: quirk disable MSI on via vt3351

The Via VT3351 APIC does not play well with MSI and unleashes a flood
of APIC errors when MSI is used to deliver interrupts.  The problem
was recently exposed when the atl1 network device driver, which enables
MSI by default, stimulated APIC errors on an Asus M2V mainboard, which
employs the Via VT3351.
See http://bugzilla.kernel.org/show_bug.cgi?id=8472 for additional
details on this bug.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 49379821c9d4e8dc6dd28bd9c48b5d0012530cf7..01d8f8a8843c5c064250f09af7396a1e3aa7cdd0 100644 (file)
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1640,6 +1640,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCN
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000_PCIX, quirk_disable_all_msi);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
 
 /* Disable MSI on chipsets that are known to not support it */
 static void __devinit quirk_disable_msi(struct pci_dev *dev)

diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index c4a14c6e8542952d43070c0fe2657d87e4ad10ff..02cf0cd7e2452572ca8395a8324236f1136f978d 100644 (file)
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1292,6 +1292,7 @@
 #define PCI_DEVICE_ID_VIA_P4M890       0x0327
 #define PCI_DEVICE_ID_VIA_VT3324       0x0324
 #define PCI_DEVICE_ID_VIA_VT3336       0x0336
+#define PCI_DEVICE_ID_VIA_VT3351       0x0351
 #define PCI_DEVICE_ID_VIA_8371_0       0x0391
 #define PCI_DEVICE_ID_VIA_8501_0       0x0501
 #define PCI_DEVICE_ID_VIA_82C561       0x0561