From mboxrd@z Thu Jan 1 00:00:00 1970 From: Xin Long Subject: Re: [PATCH net-next 00/13] sctp: refactor MTU handling Date: Fri, 27 Apr 2018 18:04:11 +0800 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Cc: network dev , linux-sctp@vger.kernel.org, Vlad Yasevich , Neil Horman To: Marcelo Ricardo Leitner Return-path: Received: from mail-io0-f194.google.com ([209.85.223.194]:45356 "EHLO mail-io0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932415AbeD0KEM (ORCPT ); Fri, 27 Apr 2018 06:04:12 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: On Fri, Apr 27, 2018 at 3:58 AM, Marcelo Ricardo Leitner wrote: > Currently MTU handling is spread over SCTP stack. There are multiple > places doing same/similar calculations and updating them is error prone > as one spot can easily be left out. > > This patchset converges it into a more concise and consistent code. In > general, it moves MTU handling from functions with bigger objectives, > such as sctp_assoc_add_peer(), to specific functions. > > It's also a preparation for the next patchset, which removes the > duplication between sctp_make_op_error_space and > sctp_make_op_error_fixed and relies on sctp_mtu_payload introduced here. > > More details on each patch. > > Marcelo Ricardo Leitner (13): > sctp: remove old and unused SCTP_MIN_PMTU > sctp: move transport pathmtu calc away of sctp_assoc_add_peer > sctp: remove an if() that is always true > sctp: introduce sctp_assoc_set_pmtu > sctp: introduce sctp_mtu_payload > sctp: introduce sctp_assoc_update_frag_point > sctp: remove sctp_assoc_pending_pmtu > sctp: introduce sctp_dst_mtu > sctp: remove sctp_transport_pmtu_check > sctp: re-use sctp_transport_pmtu in sctp_transport_route > sctp: honor PMTU_DISABLED when handling icmp > sctp: consider idata chunks when setting SCTP_MAXSEG > sctp: allow unsetting sockopt MAXSEG > > include/net/sctp/constants.h | 5 ++-- > include/net/sctp/sctp.h | 52 ++++++++++++++------------------------ > include/net/sctp/structs.h | 2 ++ > net/sctp/associola.c | 60 +++++++++++++++++++++++--------------------- > net/sctp/chunk.c | 12 +-------- > net/sctp/output.c | 28 ++++++++------------- > net/sctp/socket.c | 43 ++++++++++++++----------------- > net/sctp/transport.c | 37 ++++++++++++++------------- > 8 files changed, 105 insertions(+), 134 deletions(-) > > -- > 2.14.3 > Series Reviewed-by: Xin Long