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NTB: Default to CPU memcpy for performance
authorDave Jiang <dave.jiang@intel.com>
Tue, 19 May 2015 20:52:04 +0000 (16:52 -0400)
committerJon Mason <jdmason@kudzu.us>
Sat, 4 Jul 2015 18:09:24 +0000 (14:09 -0400)
commite934c37d37ea768defadd6d057af84b2567e2e45
tree6dbde672b790ffab2d8a784ed7cbab349afc1307tree | snapshot
parent6fd5603cbc2c0f18fbfc55303e5b3c704a4e3d71commit | diff
NTB: Default to CPU memcpy for performance

Disable DMA usage by default, since the CPU provides much better
performance with write combining.  Provide a module parameter to enable
DMA usage when offloading the memcpy is preferred.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
drivers/ntb/ntb_transport.c diff | blob | history
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