From: Dongdong Liu <[email protected]> commit 72f2ff0deb870145a5a2d24cd75b4f9936159a62 upstream.
The PCIe Root Port in Hip06/Hip07 SoCs advertises an MSI capability, but it cannot generate MSIs. It can transfer MSI/MSI-X from downstream devices, but does not support MSI/MSI-X itself. Add a quirk to prevent use of MSI/MSI-X by the Root Port. [bhelgaas: changelog, sort vendor ID #define, drop device ID #define] Signed-off-by: Dongdong Liu <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Reviewed-by: Gabriele Paoloni <[email protected]> Reviewed-by: Zhou Wang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/pci/quirks.c | 1 + include/linux/pci_ids.h | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 83ad32b07cc39..eeb771ecda15b 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1623,6 +1623,7 @@ static void quirk_pcie_mch(struct pci_dev *pdev) DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_HUAWEI, 0x1610, quirk_pcie_mch); /* diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 1af616138d1dc..5547f1a0f83b2 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -2496,6 +2496,8 @@ #define PCI_DEVICE_ID_KORENIX_JETCARDF2 0x1700 #define PCI_DEVICE_ID_KORENIX_JETCARDF3 0x17ff +#define PCI_VENDOR_ID_HUAWEI 0x19e5 + #define PCI_VENDOR_ID_NETRONOME 0x19ee #define PCI_DEVICE_ID_NETRONOME_NFP3200 0x3200 #define PCI_DEVICE_ID_NETRONOME_NFP3240 0x3240 -- 2.25.1
