]> git.karo-electronics.de Git - linux-beck.git/commit
PCI: Increase IBM ipr SAS Crocodile BARs to at least system page size
authorDouglas Lehr <dllehr@us.ibm.com>
Wed, 20 Aug 2014 23:26:52 +0000 (09:26 +1000)
committerBjorn Helgaas <bhelgaas@google.com>
Tue, 16 Sep 2014 22:29:16 +0000 (16:29 -0600)
commit9fe373f9997b48fcd6222b95baf4a20c134b587a
treebed6934c694600e638ce3cd5ef1dae08b5f7968d
parente0d1b6b77ced59d852d38fcf9a8a0a1c40c84cee
PCI: Increase IBM ipr SAS Crocodile BARs to at least system page size

The Crocodile chip occasionally comes up with 4k and 8k BAR sizes.  Due to
an erratum, setting the SR-IOV page size causes the physical function BARs
to expand to the system page size.  Since ppc64 uses 64k pages, when Linux
tries to assign the smaller resource sizes to the now 64k BARs the address
will be truncated and the BARs will overlap.

Force Linux to allocate the resource as a full page, which avoids the
overlap.

[bhelgaas: print expanded resource, too]
Signed-off-by: Douglas Lehr <dllehr@us.ibm.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Milton Miller <miltonm@us.ibm.com>
CC: stable@vger.kernel.org
drivers/pci/quirks.c