From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net-next] net_sched: sch_fq: add dctcp-like marking
Date: Sun, 11 Nov 2018 13:59:36 -0800 (PST)
Message-ID: <20181111.135936.548398364245184169.davem@davemloft.net>
References: <20181111171131.24115-1-edumazet@google.com>
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From: Eric Dumazet <edumazet@google.com>
Date: Sun, 11 Nov 2018 09:11:31 -0800

> 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>

Applied, thanks Eric.