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authorSimon Horman <simon.horman@netronome.com>2015-12-11 11:30:12 +0900
committerSasha Levin <alexander.levin@verizon.com>2016-09-02 23:40:06 -0400
commitdfd742cecf233b6b4a1d903a9c64f1b4bf04f1da (patch)
treebc1257fdfed6ccb2f648bb25f5aaf56e87ca3489
parent8d3cd03ce36cf9673ce0625d648184b2fab25853 (diff)
PCI: Limit config space size for Netronome NFP4000
[ Upstream commit c2e771b02792d222cbcd9617fe71482a64f52647 ] 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> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
-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 e31e04b4b8f4..5d8c049fe503 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);