From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: [PATCH] tcp: add SYN/data info to TCP_INFO Date: Sat, 20 Oct 2012 09:50:20 +0200 Message-ID: <1350719420.13333.344.camel@edumazet-glaptop> References: <1350695684-26962-1-git-send-email-ycheng@google.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: davem@davemloft.net, ncardwell@google.com, edumazet@google.com, hkchu@google.com, netdev@vger.kernel.org To: Yuchung Cheng Return-path: Received: from mail-we0-f174.google.com ([74.125.82.174]:39848 "EHLO mail-we0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752532Ab2JTHuY (ORCPT ); Sat, 20 Oct 2012 03:50:24 -0400 Received: by mail-we0-f174.google.com with SMTP id t9so607904wey.19 for ; Sat, 20 Oct 2012 00:50:23 -0700 (PDT) In-Reply-To: <1350695684-26962-1-git-send-email-ycheng@google.com> Sender: netdev-owner@vger.kernel.org List-ID: On Fri, 2012-10-19 at 18:14 -0700, Yuchung Cheng wrote: > Add a bit TCPI_OPT_SYN_DATA (32) to the socket option TCP_INFO:tcpi_options. > It's set if the data in SYN (sent or received) is acked by SYN-ACK. Server or > client application can use this information to check Fast Open success rate. > > Signed-off-by: Yuchung Cheng > --- Acked-by: Eric Dumazet