]> git.hungrycats.org Git - linux/commit
PCI: Limit config space size for Netronome NFP4000
authorSimon Horman <simon.horman@netronome.com>
Fri, 11 Dec 2015 02:30:12 +0000 (11:30 +0900)
committerSasha Levin <alexander.levin@verizon.com>
Sat, 3 Sep 2016 03:42:11 +0000 (23:42 -0400)
commit8a1a4c7aa10452bba98a52434cf165ee45d0f362
tree9e02340e66a4e07a23b41b891c92b52ad0a7c29e
parent1935e8370a462eb381b4ca2497ab8c8ac5c938c0
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>
drivers/pci/quirks.c