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authorSimon Horman <simon.horman@netronome.com>2015-12-11 03:30:12 +0100
committerBjorn Helgaas <bhelgaas@google.com>2016-01-16 00:30:40 +0100
commitc2e771b02792d222cbcd9617fe71482a64f52647 (patch)
tree9ac0c180f1b061038d572e76570f177a8b0407bb /drivers/pci
parentPCI: Add Netronome NFP4000 PF device ID (diff)
downloadlinux-c2e771b02792d222cbcd9617fe71482a64f52647.tar.xz
linux-c2e771b02792d222cbcd9617fe71482a64f52647.zip
PCI: Limit config space size for Netronome NFP4000
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 <simon.horman@netronome.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/quirks.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 83e93d7ca4b9..8b13b41257b8 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -295,6 +295,7 @@ 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);