3 files changed, 13 insertions, 0 deletions

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index d378478612fb..ea48e969a12e 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -24,6 +24,17 @@
 #include <linux/acpi.h>
 #include "pci.h"
 
+/* The Mellanox Tavor device gives false positive parity errors
+ * Mark this device with a broken_parity_status, to allow
+ * PCI scanning code to "skip" this now blacklisted device.
+ */
+static void __devinit quirk_mellanox_tavor(struct pci_dev *dev)
+{
+        dev->broken_parity_status = 1;  /* This device gives false positives */
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor);
+
 /* Deal with broken BIOS'es that neglect to enable passive release,
    which can cause problems in combination with the 82441FX/PPro MTRRs */
 static void __devinit quirk_passive_release(struct pci_dev *dev)
diff --git a/include/linux/pci.h b/include/linux/pci.h
index b9eb9b021d6a..91c37750cd34 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -162,6 +162,7 @@ struct pci_dev {
         unsigned int    is_busmaster:1; /* device is busmaster */
         unsigned int    no_msi:1;       /* device may not use msi */
         unsigned int    block_ucfg_access:1;    /* userspace config space access is blocked */
+        unsigned int    broken_parity_status:1; /* Device generates false positive parity */
 
         u32             saved_config_space[16]; /* config space saved at suspend time */
         struct hlist_head saved_cap_space;
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index bcfe9d4f56ae..3d197cdcfa3a 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1946,6 +1946,7 @@
 
 #define PCI_VENDOR_ID_MELLANOX          0x15b3
 #define PCI_DEVICE_ID_MELLANOX_TAVOR    0x5a44
+#define PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE     0x5a46
 #define PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT 0x6278
 #define PCI_DEVICE_ID_MELLANOX_ARBEL    0x6282
 #define PCI_DEVICE_ID_MELLANOX_SINAI_OLD 0x5e8c