net_dma

1What:		tcp_dma_copybreak sysctl
2Date:		Removed in kernel v3.13
3Contact:	Dan Williams <dan.j.williams@intel.com>
4Description:
5	Formerly the lower limit, in bytes, of the size of socket reads
6	that will be offloaded to a DMA copy engine.  Removed due to
7	coherency issues of the cpu potentially touching the buffers
8	while dma is in flight.