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PCI: Add VPD function 0 quirk for Intel Ethernet devices

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commit 7aa6ca4d39edf01f997b9e02cf6d2fdeb224f351 upstream.

Set the PCI_DEV_FLAGS_VPD_REF_F0 flag on all Intel Ethernet device
functions other than function 0, so that on multi-function devices, we will
always read VPD from function 0 instead of from the other functions.

[bhelgaas: changelog]
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Alexander Duyck <alexander.h.duyck@redhat.com>
[bwh: Backported to 3.2:
 - Put the class check in the new function as there is no
   DECLARE_PCI_FIXUP_CLASS_EARLY(
 - Adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Zefan Li <lizefan@huawei.com>
This commit is contained in:
Mark Rustad 2015-07-13 11:40:07 -07:00 committed by Zefan Li
parent dc7e2fb68c
commit f5289af2c5
1 changed files with 9 additions and 0 deletions
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9
drivers/pci/quirks.c
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@ -1883,6 +1883,15 @@ static void __devinit quirk_netmos(struct pci_dev *dev)
DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID,
PCI_CLASS_COMMUNICATION_SERIAL, 8, quirk_netmos);
static void quirk_f0_vpd_link(struct pci_dev *dev)
{
if ((dev->class >> 8) != PCI_CLASS_NETWORK_ETHERNET ||
!dev->multifunction || !PCI_FUNC(dev->devfn))
return;
dev->dev_flags |= PCI_DEV_FLAGS_VPD_REF_F0;
}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_f0_vpd_link);
static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
{
u16 command, pmcsr;