Patch "PCI: Limit config space size for Netronome NFP6000 family" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

PCI: Limit config space size for Netronome NFP6000 family

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
pci-limit-config-space-size-for-netronome-nfp6000-family.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: "Jason S. McMullan" <[email protected]>
Date: Wed, 30 Sep 2015 15:35:07 +0900
Subject: PCI: Limit config space size for Netronome NFP6000 family

From: Jason S. McMullan <[email protected]>

commit 9f33a2ae59f24452c1076749deb615bccd435ca9 upstream.

The NFP6000 has an erratum where reading/writing to PCI config space addresses above 0x600 can cause the NFP to generate PCIe completion timeouts.

Limit the NFP6000's config space size to 0x600 bytes.

---
 drivers/pci/quirks.c |   11 +++++++++++
 1 file changed, 11 insertions(+)

@@ -287,6 +287,17 @@ static void quirk_citrine(struct pci_dev
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM,	PCI_DEVICE_ID_IBM_CITRINE,	quirk_citrine);
 
+/*
+ * This chip can cause bus lockups if config addresses above 0x600
+ * are read or written.
+ */
+static void quirk_nfp6000(struct pci_dev *dev)
+{
+	dev->cfg_size = 0x600;
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME,	PCI_DEVICE_ID_NETRONOME_NFP6000,	quirk_nfp6000);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME,	PCI_DEVICE_ID_NETRONOME_NFP6000_VF,	quirk_nfp6000);
+
 /*  On IBM Crocodile ipr SAS adapters, expand BAR to system page size */
 static void quirk_extend_bar_to_page(struct pci_dev *dev)
 {

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/pci-limit-config-space-size-for-netronome-nfp6000-family.patch queue-4.4/pci-support-pcie-devices-with-short-cfg_size.patch queue-4.4/pci-add-netronome-vendor-and-device-ids.patch