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authorJakub Kicinski <jakub.kicinski@netronome.com>2018-08-15 02:48:50 +0300
committerBjorn Helgaas <bhelgaas@google.com>2018-08-15 03:10:14 +0300
commit2538fb89b8f4ee9e1c1759cfb3c7989d9ef1f6e7 (patch)
tree8987dfceedcc741a1cf8849d6a4a38702ea9f759 /drivers/pci
parent6eaf2781137842429c447bb491402b231df8a0f1 (diff)
downloadlinux-2538fb89b8f4ee9e1c1759cfb3c7989d9ef1f6e7.tar.xz
PCI: Limit config space size for Netronome NFP5000
Like the NFP4000 and NFP6000, the NFP5000 as an erratum where reading/ writing to PCI config space addresses above 0x600 can cause the NFP to generate PCIe completion timeouts. Limit the NFP5000's PF's config space size to 0x600 bytes as is already done for the NFP4000 and NFP6000. The NFP5000's VF is 0x6003 (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: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Tony Egan <tony.egan@netronome.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 502275c092ae..7743cd56b89a 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -460,6 +460,7 @@ static void quirk_nfp6000(struct pci_dev *dev)
}
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_NFP5000, 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 */