net_dma 339 B

12345678
  1. What: tcp_dma_copybreak sysctl
  2. Date: Removed in kernel v3.13
  3. Contact: Dan Williams <[email protected]>
  4. Description:
  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.