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authorstephen hemminger <stephen@networkplumber.org>2017-08-09 17:46:11 -0700
committerDavid S. Miller <davem@davemloft.net>2017-08-11 14:00:06 -0700
commit8b5327975ae171ca54dfd93e6c042d1292945867 (patch)
treecd8b705218c823951c0ae228dfff43651f9ad9f3 /tools/perf/scripts
parentea5a32c00bcacce1d8ac834a70a82f95a1c79425 (diff)
downloadcachepc-linux-8b5327975ae171ca54dfd93e6c042d1292945867.tar.gz
cachepc-linux-8b5327975ae171ca54dfd93e6c042d1292945867.zip
netvsc: allow controlling send/recv buffer size
Control the size of the buffer areas via ethtool ring settings. They aren't really traditional hardware rings, but host API breaks receive and send buffer into chunks. The final size of the chunks are controlled by the host. The default value of send and receive buffer area for host DMA is much larger than it needs to be. Experimentation shows that 4M receive and 1M send is sufficient. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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