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| author | Eric Dumazet <edumazet@google.com> | 2014-09-25 07:17:49 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-09-28 17:27:36 -0400 |
| commit | 5804283d7cb1da46485950d545dd7869137dcda5 (patch) | |
| tree | ba4656cb940b502838058edbf81d15cf147d0171 /net/core | |
| parent | a8404ce5ae7a6054322afb5aa77cefe3ad54475e (diff) | |
| download | blackbird-op-linux-5804283d7cb1da46485950d545dd7869137dcda5.tar.gz blackbird-op-linux-5804283d7cb1da46485950d545dd7869137dcda5.zip | |
mlx4: exploit skb->xmit_more to conditionally send doorbell
skb->xmit_more tells us if another skb is coming next.
We need to send doorbell when : xmit_more is not set,
or txqueue is stopped (preventing next skb to come immediately)
Tested with a modified pktgen version, I got a 40% increase of
throughput.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
0 files changed, 0 insertions, 0 deletions
