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authorMaciej Sosnowski <maciej.sosnowski@intel.com>2009-02-26 05:05:17 -0500
committerDan Williams <dan.j.williams@intel.com>2009-03-04 18:04:40 -0500
commit5de22343b2303b278ab562e5d166ffe306566d30 (patch)
tree6c48b83e1dc60afb6d22d3afc74058bbcfaa87d7 /drivers/dma/ioatdma_hw.h
parent2b8a6bf896ef47cc7d84c503079cc7b99789f9fa (diff)
I/OAT: set tcp_dma_copybreak to 256k for I/OAT ver.3
Upcoming server platforms from Intel based on the Nehalem performance have significantly improved CPU based copy performance. However, the DMA engine can still be effective at higher I/O sizes for TCP traffic and at this time copybreak should be set to 256k for TCP traffic only. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma/ioatdma_hw.h')
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