dca: disable dca on IOAT ver.3.0 multiple-IOH platforms
authorSosnowski, Maciej <maciej.sosnowski@intel.com>
Thu, 16 Sep 2010 06:02:26 +0000 (06:02 +0000)
committerDavid S. Miller <davem@davemloft.net>
Sat, 18 Sep 2010 03:08:21 +0000 (20:08 -0700)
commit4e8cec269dd9e823804141f25ce37c23e72d3c12
tree1271fd6bab1aeda1254b8d6a48d8dcd2a25e87f2
parentf0f9deae9e7c421fa0c1c627beb8e174325e1ba7
dca: disable dca on IOAT ver.3.0 multiple-IOH platforms

Direct Cache Access is not supported on IOAT ver.3.0 multiple-IOH platforms.
This patch blocks registering of dca providers when multiple IOH detected with IOAT ver.3.0.

Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/dca/dca-core.c