From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Borkmann Subject: [PATCH net-next v2 0/4] tcp: receive-side per route dctcp handling Date: Mon, 31 Aug 2015 15:58:43 +0200 Message-ID: Cc: fw@strlen.de, netdev@vger.kernel.org, Daniel Borkmann To: davem@davemloft.net Return-path: Received: from www62.your-server.de ([213.133.104.62]:34935 "EHLO www62.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752085AbbHaN6x (ORCPT ); Mon, 31 Aug 2015 09:58:53 -0400 Sender: netdev-owner@vger.kernel.org List-ID: Original cover letter: Currently, the following case doesn't use DCTCP, even if it should: - responder has f.e. cubic as system wide default - 'ip route congctl dctcp $src' was set Then, DCTCP is NOT used if a DCTCP sender attempts to connect from a host in the $src range: ECT(0) is set, but listen_sk is not dctcp, so we fail the INET_ECN_is_not_ect sanity check. We also have to examine the dst used for the SYN/ACK reply to make this case work. In order to minimize additional cost, store the 'ecn is must have' information is the dst_features field. The set targets -next instead of -net since this doesn't seem to be a serious bug and to give the change more soak time until it hits linus tree. v1 -> v2: - Addressed Dave's feedback, not exposing any bits to user space - Added patch 3 to reject incorrect configurations - Rest as is, rebased and retested Thanks! Daniel Borkmann (3): net: fib6: reduce identation in ip6_convert_metrics fib, fib6: reject invalid feature bits tcp: use dctcp if enabled on the route to the initiator Florian Westphal (1): net: fib: move metrics parsing to a helper include/net/dst.h | 6 ++++ include/net/tcp.h | 2 +- include/uapi/linux/rtnetlink.h | 11 +++--- net/core/rtnetlink.c | 6 ++++ net/ipv4/fib_semantics.c | 77 ++++++++++++++++++++++++++---------------- net/ipv4/tcp_cong.c | 9 +++-- net/ipv4/tcp_input.c | 7 ++-- net/ipv6/route.c | 39 ++++++++++++--------- 8 files changed, 101 insertions(+), 56 deletions(-) -- 1.9.3