]> git.itanic.dy.fi Git - linux-stable/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 03:40:06 +0000 (23:40 -0400)
commitdfd742cecf233b6b4a1d903a9c64f1b4bf04f1da
treebc1257fdfed6ccb2f648bb25f5aaf56e87ca3489
parent8d3cd03ce36cf9673ce0625d648184b2fab25853
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