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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 23:42:11 -0400
commit8a1a4c7aa10452bba98a52434cf165ee45d0f362 (patch)
tree9e02340e66a4e07a23b41b891c92b52ad0a7c29e
parent1935e8370a462eb381b4ca2497ab8c8ac5c938c0 (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 2a05f7b5c396..b3e63f567c56 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);