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| author | Dongdong Liu <liudongdong3@huawei.com> | 2017-04-04 19:32:33 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-04-12 12:42:12 +0200 |
| commit | 8f24ffc2f9a062a12dbde35dca0ed167758a908c (patch) | |
| tree | 8a86f43b0583aea003d910144d5ab425c162a4b0 | |
| parent | f2d9c08fc9b28c050f21e0a3e22d92ed6eaa5bf5 (diff) | |
| download | talos-obmc-linux-8f24ffc2f9a062a12dbde35dca0ed167758a908c.tar.gz talos-obmc-linux-8f24ffc2f9a062a12dbde35dca0ed167758a908c.zip | |
PCI: Disable MSI for HiSilicon Hip06/Hip07 Root Ports
[ Upstream commit 72f2ff0deb870145a5a2d24cd75b4f9936159a62 ]
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: Sasha Levin <alexander.levin@verizon.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 c04df55bfe10..ae9bd926bad8 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -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); /* diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 73dda0edcb97..a4f77feecbb0 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -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 |
