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PCI: Limit config space size for Netronome NFP5000

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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 <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Tony Egan <[email protected]>
This commit is contained in:
Jakub Kicinski 2018-08-14 16:48:50 -07:00 • committed by Bjorn Helgaas
commit 2538fb89b8
2 changed files with 2 additions and 0 deletions
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1
drivers/pci/quirks.c
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@ -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 */