]> git.ipfire.org Git - thirdparty/kernel/stable.git/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)
committerJiri Slaby <jslaby@suse.cz>
Wed, 21 Sep 2016 11:40:08 +0000 (13:40 +0200)
commit49fa4f820dafe9c552a62a2f13001972396ff5fb
tree0ce5b8b2b9474a361768793d2a892a41e7daa197
parentb15280aa98e3faeb780a03ecbee8f77ac3e96080
PCI: Limit config space size for Netronome NFP4000

commit c2e771b02792d222cbcd9617fe71482a64f52647 upstream.

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: Jiri Slaby <jslaby@suse.cz>
drivers/pci/quirks.c