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>

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 502275c..7743cd5 100644 (file)
--- 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 */

diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 2950223..381fc00 100644 (file)
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2541,6 +2541,7 @@
 #define PCI_DEVICE_ID_NETRONOME_NFP3200        0x3200
 #define PCI_DEVICE_ID_NETRONOME_NFP3240        0x3240
 #define PCI_DEVICE_ID_NETRONOME_NFP4000        0x4000
+#define PCI_DEVICE_ID_NETRONOME_NFP5000        0x5000
 #define PCI_DEVICE_ID_NETRONOME_NFP6000        0x6000
 #define PCI_DEVICE_ID_NETRONOME_NFP6000_VF     0x6003