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authorAlex Williamson <alex.williamson@redhat.com>2016-03-24 13:03:49 -0600
committerBjorn Helgaas <bhelgaas@google.com>2016-04-19 16:17:59 -0500
commit8bcf4525c5d43306c5fd07e132bc8650e3491aec (patch)
treec59efd4944da4423e935e706a1d5b05c6fd8b42a /drivers/pci
parent9735a22799b9214d17d3c231fe377fc852f042e9 (diff)
downloadlinux-8bcf4525c5d43306c5fd07e132bc8650e3491aec.tar.bz2
PCI: Mark Intel i40e NIC INTx masking as broken
All of the i40e (XL710/X710) 10/20/40GbE NICs lack support for indicating INTx is asserted via the interrupt bit in the PCI status register. The DisINTx bit in the command register is functional, causing these devices to be incorrectly detected as supporting INTx masking. Quirk them to properly indicate no INTx masking support. Device IDs copied from i40e_devids.h. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: John Ronciak <john.ronciak@intel.com> CC: Jesse Brandeburg <jesse.brandeburg@intel.com>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/quirks.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 8e678027b900..e248c2aad000 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3150,6 +3150,39 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_REALTEK, 0x8169,
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MELLANOX, PCI_ANY_ID,
quirk_broken_intx_masking);
+/*
+ * Intel i40e (XL710/X710) 10/20/40GbE NICs all have broken INTx masking,
+ * DisINTx can be set but the interrupt status bit is non-functional.
+ */
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1572,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1574,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1580,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1581,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1583,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1584,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1585,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1586,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1587,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1588,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1589,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x37d0,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x37d1,
+ quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x37d2,
+ quirk_broken_intx_masking);
+
static void quirk_no_bus_reset(struct pci_dev *dev)
{
dev->dev_flags |= PCI_DEV_FLAGS_NO_BUS_RESET;