tree 7189116b48efd57b2de74cc924d39fc885cf4d9e
parent 7dcca30a32aadb0520417521b0c44f42d09fe05c
author Chris Leech <christopher.leech@intel.com> 1173376653 -0800
committer Dan Williams <dan.j.williams@intel.com> 1184193543 -0700

ioatdma: Push pending transactions to hardware more frequently
Every 20 descriptors turns out to be to few append commands with
newer/faster CPUs.  Pushing every 4 still cuts down on MMIO writes to an
acceptable level without letting the DMA engine run out of work.

Signed-off-by: Chris Leech <christopher.leech@intel.com>