From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2A71FC433E0 for ; Thu, 2 Jul 2020 00:35:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0DBB120672 for ; Thu, 2 Jul 2020 00:35:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726161AbgGBAfa (ORCPT ); Wed, 1 Jul 2020 20:35:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60048 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726093AbgGBAfa (ORCPT ); Wed, 1 Jul 2020 20:35:30 -0400 Received: from shards.monkeyblade.net (shards.monkeyblade.net [IPv6:2620:137:e000::1:9]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3774CC08C5C1; Wed, 1 Jul 2020 17:35:30 -0700 (PDT) Received: from localhost (unknown [IPv6:2601:601:9f00:477::3d5]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id A713314D45696; Wed, 1 Jul 2020 17:35:29 -0700 (PDT) Date: Wed, 01 Jul 2020 17:35:28 -0700 (PDT) Message-Id: <20200701.173528.2292418258068703456.davem@davemloft.net> To: rao.shoaib@oracle.com Cc: netdev@vger.kernel.org, linux-rdma@vger.kernel.org, ka-cheong.poon@oracle.com, david.edmondson@oracle.com Subject: Re: [PATCH v1] rds: If one path needs re-connection, check all and re-connect From: David Miller In-Reply-To: <20200701192338.11695-1-rao.shoaib@oracle.com> References: <20200701192338.11695-1-rao.shoaib@oracle.com> X-Mailer: Mew version 6.8 on Emacs 26.3 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Wed, 01 Jul 2020 17:35:29 -0700 (PDT) Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: rao.shoaib@oracle.com Date: Wed, 1 Jul 2020 12:23:38 -0700 > From: Rao Shoaib > > In testing with mprds enabled, Oracle Cluster nodes after reboot were > not able to communicate with others nodes and so failed to rejoin > the cluster. Peers with lower IP address initiated connection but the > node could not respond as it choose a different path and could not > initiate a connection as it had a higher IP address. > > With this patch, when a node sends out a packet and the selected path > is down, all other paths are also checked and any down paths are > re-connected. > > Reviewed-by: Ka-cheong Poon > Reviewed-by: David Edmondson > Signed-off-by: Somasundaram Krishnasamy > Signed-off-by: Rao Shoaib Applied.