From 3a4986abaaff615bd1277cedd1b4e68e66ae9c7c Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Fri, 11 Dec 2015 11:30:12 +0900 Subject: [PATCH] PCI: Limit config space size for Netronome NFP4000 commit c2e771b02792d222cbcd9617fe71482a64f52647 upstream. Like the NFP6000, the NFP4000 as an erratum where reading/writing to PCI config space addresses above 0x600 can cause the NFP to generate PCIe completion timeouts. Limit the NFP4000's PF's config space size to 0x600 bytes as is already done for the NFP6000. The NFP4000's VF is 0x6004 (PCI_DEVICE_ID_NETRONOME_NFP6000_VF), the same device ID as the NFP6000's VF. Thus, its config space is already limited by the existing use of quirk_nfp6000(). Signed-off-by: Simon Horman Signed-off-by: Bjorn Helgaas Signed-off-by: Ben Hutchings --- drivers/pci/quirks.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 3f523c050a8f9..bc4147bfe0ad0 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -296,6 +296,7 @@ static void quirk_nfp6000(struct pci_dev *dev) { dev->cfg_size = 0x600; } +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP4000, quirk_nfp6000); 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); -- 2.47.3