[PATCH 3.16.y-ckt 011/133] PCI: Add VPD function 0 quirk for Intel Ethernet devices

From: Luis Henriques
Date: Wed Sep 30 2015 - 06:37:23 EST

3.16.7-ckt18 -stable review patch. If anyone has any objections, please let me know.


From: Mark Rustad <mark.d.rustad@xxxxxxxxx>

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@xxxxxxxxx>
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Acked-by: Alexander Duyck <alexander.h.duyck@xxxxxxxxxx>
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
drivers/pci/quirks.c | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 6948f2379e16..91181b5ff437 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1883,6 +1883,15 @@ static void quirk_netmos(struct pci_dev *dev)

+static void quirk_f0_vpd_link(struct pci_dev *dev)
+ if (!dev->multifunction || !PCI_FUNC(dev->devfn))
+ return;
+ dev->dev_flags |= PCI_DEV_FLAGS_VPD_REF_F0;
+ PCI_CLASS_NETWORK_ETHERNET, 8, quirk_f0_vpd_link);
static void quirk_e100_interrupt(struct pci_dev *dev)
u16 command, pmcsr;
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