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PCI: Disable MSI for HiSilicon Hip06/Hip07 Root Ports

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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 <liudongdong3@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Gabriele Paoloni <gabriele.paoloni@huawei.com>
Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
This commit is contained in:
Dongdong Liu 2017-02-03 15:02:07 -06:00 committed by Bjorn Helgaas
parent 4788316f74
commit 72f2ff0deb
2 changed files with 3 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/pci/quirks.c
View file

@ -1634,6 +1634,7 @@ 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);
/*

2
include/linux/pci_ids.h
View file

@ -2516,6 +2516,8 @@
#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