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(parent: 7dcca30) | patch
ioatdma: Push pending transactions to hardware more frequently
authorChris Leech <christopher.leech@intel.com>
Thu, 8 Mar 2007 17:57:33 +0000 (09:57 -0800)
committerDan Williams <dan.j.williams@intel.com>
Wed, 11 Jul 2007 22:39:03 +0000 (15:39 -0700)
commit000725d56a196e72dc22328324c5ec5506265736
tree7189116b48efd57b2de74cc924d39fc885cf4d9etree | snapshot (tar.gz zip)
parent7dcca30a32aadb0520417521b0c44f42d09fe05ccommit | diff
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>
drivers/dma/ioatdma.c diff | blob | blame | history