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| author | Dongdong Liu <liudongdong3@huawei.com> | 2017-02-03 15:02:07 -0600 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2020-06-29 20:07:59 -0400 |
| commit | 5e3d9f68f76a316a90387bc37d767d67a7a17658 (patch) | |
| tree | d3ca314d559f08ace2dc0284bb55ebd3018243c2 | |
| parent | e04cbde43abe9a2c94716fd35f634a4867fbe6bd (diff) | |
| download | linux-5e3d9f68f76a316a90387bc37d767d67a7a17658.tar.gz linux-5e3d9f68f76a316a90387bc37d767d67a7a17658.tar.bz2 linux-5e3d9f68f76a316a90387bc37d767d67a7a17658.zip | |
PCI: Disable MSI for HiSilicon Hip06/Hip07 Root Ports
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 <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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/pci/quirks.c | 1 | ||||
| -rw-r--r-- | include/linux/pci_ids.h | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 83ad32b07cc3..eeb771ecda15 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 1af616138d1d..5547f1a0f83b 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 |