Re: [PATCH net-next] tcp: allow TLP in ECN CWR

2017-12-13 Thread David Miller
From: Yuchung Cheng Date: Mon, 11 Dec 2017 15:42:53 -0800 > From: Neal Cardwell > > This patch enables tail loss probe in cwnd reduction (CWR) state > to detect potential losses. Prior to this patch, since the sender > uses PRR to determine the cwnd in CWR state, the combination of > CWR+PRR pl

[PATCH net-next] tcp: allow TLP in ECN CWR

2017-12-11 Thread Yuchung Cheng
From: Neal Cardwell This patch enables tail loss probe in cwnd reduction (CWR) state to detect potential losses. Prior to this patch, since the sender uses PRR to determine the cwnd in CWR state, the combination of CWR+PRR plus tcp_tso_should_defer() could cause unnecessary stalls upon losses: PR