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authorEric Dumazet <edumazet@google.com>2018-11-11 09:11:31 -0800
committerDavid S. Miller <davem@davemloft.net>2018-11-11 13:59:21 -0800
commit48872c11b77271ef9b070bdc50afe6655c4eb9aa (patch)
treecebc970abf4ab61ae117ef21b18a3b967eb9a481 /drivers/net/ethernet/intel/i40e
parenttcp: tsq: no longer use limit_output_bytes for paced flows (diff)
downloadlinux-dev-48872c11b77271ef9b070bdc50afe6655c4eb9aa.tar.xz
linux-dev-48872c11b77271ef9b070bdc50afe6655c4eb9aa.zip
net_sched: sch_fq: add dctcp-like marking
Similar to 80ba92fa1a92 ("codel: add ce_threshold attribute") After EDT adoption, it became easier to implement DCTCP-like CE marking. In many cases, queues are not building in the network fabric but on the hosts themselves. If packets leaving fq missed their Earliest Departure Time by XXX usec, we mark them with ECN CE. This gives a feedback (after one RTT) to the sender to slow down and find better operating mode. Example : tc qd replace dev eth0 root fq ce_threshold 2.5ms Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/intel/i40e')
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