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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>
This commit is contained in:
Alex Williamson 2016-03-24 13:03:49 -06:00 committed by Bjorn Helgaas
parent 9735a22799
commit 8bcf4525c5
1 changed files with 33 additions and 0 deletions
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33
drivers/pci/quirks.c
View File

@ -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;