e1000e: disable Early Receive DMA on ICH LOMs
authorBruce Allan <bruce.w.allan@intel.com>
Fri, 16 Dec 2011 00:46:27 +0000 (00:46 +0000)
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>
Fri, 27 Jan 2012 02:19:49 +0000 (18:19 -0800)
commit79d4e9087a6ecd6bf2103bf378bf8e0d79278b5a
treecd04c963a2bb63de88cf79681f6061bc7024cd57
parenta7563f342db6490e66dbf2c8a50577a72a158c9a
e1000e: disable Early Receive DMA on ICH LOMs

Internal stress testing with jumbo frames shows the reliability of ICH9 and
ICH10D devices is improved in certain corner cases by disabling the Early
Receive feature. To reduce the performance impact caused by disabling this
feature, the packet buffer sizes and relevant flow control settings are
modified accordingly.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
drivers/net/ethernet/intel/e1000e/e1000.h
drivers/net/ethernet/intel/e1000e/ich8lan.c
drivers/net/ethernet/intel/e1000e/netdev.c