From: "Huang,Xiong" <xiong@xxxxxxxxxxxxxxxx>
PCI devices of AR8161/AR8162/AR8171/AR8172 which revision lower than
0x18 have this bug.
Signed-off-by: Huang,Xiong <xiong@xxxxxxxxxxxxxxxx>
---
drivers/pci/quirks.c | 35 +++++++++++++++++++++++++++++++++++
include/linux/pci_ids.h | 4 ++++
2 files changed, 39 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 0369fb6..bf31d72 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -2594,6 +2594,29 @@ 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)
+{
+ static u16 qca_eth_devid[] = {
+ PCI_DEVICE_ID_AR8161,
+ PCI_DEVICE_ID_AR8162,
+ PCI_DEVICE_ID_AR8171,
+ PCI_DEVICE_ID_AR8172};
+ struct pci_dev *p;
+ int i;
+
+ /* AR816X/AR817X MSI is fixed at HW level from revision 0x18 */
+ for (i = 0; i < ARRAY_SIZE(qca_eth_devid); i++) {
+ p = pci_get_device(PCI_VENDOR_ID_ATTANSIC,
+ qca_eth_devid[i],
+ NULL);
+ if (!p)
+ return;
+
+ if (p->revision < 0x18)
+ dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
+ pci_dev_put(p);
+ }
+}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_TIGON3_5780,
quirk_msi_intx_disable_bug);
@@ -2643,6 +2666,18 @@ 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,
+ PCI_DEVICE_ID_AR8161,
+ quirk_msi_intx_disable_qca_bug);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC,
+ PCI_DEVICE_ID_AR8162,
+ quirk_msi_intx_disable_qca_bug);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC,
+ PCI_DEVICE_ID_AR8171,
+ quirk_msi_intx_disable_qca_bug);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC,
+ PCI_DEVICE_ID_AR8172,
+ quirk_msi_intx_disable_qca_bug);
#endif /* CONFIG_PCI_MSI */
/* Allow manual resource allocation for PCI hotplug bridges
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index f11c1c2..7e171fb 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2438,6 +2438,10 @@
#define PCI_VENDOR_ID_ATTANSIC 0x1969
#define PCI_DEVICE_ID_ATTANSIC_L1 0x1048
#define PCI_DEVICE_ID_ATTANSIC_L2 0x2048
+#define PCI_DEVICE_ID_AR8161 0x1091
+#define PCI_DEVICE_ID_AR8162 0x1090
+#define PCI_DEVICE_ID_AR8171 0x10A1
+#define PCI_DEVICE_ID_AR8172 0x10A0
#define PCI_VENDOR_ID_JMICRON 0x197B
#define PCI_DEVICE_ID_JMICRON_JMB360 0x2360
--
1.7.11.7
--
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