From patchwork Sun Sep 18 05:22:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Simmons X-Patchwork-Id: 12979330 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from pdx1-mailman-customer002.dreamhost.com (listserver-buz.dreamhost.com [69.163.136.29]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 19209C6FA86 for ; Sun, 18 Sep 2022 05:23:15 +0000 (UTC) Received: from pdx1-mailman-customer002.dreamhost.com (localhost [127.0.0.1]) by pdx1-mailman-customer002.dreamhost.com (Postfix) with ESMTP id 4MVbmy5x93z1yD9; Sat, 17 Sep 2022 22:23:14 -0700 (PDT) Received: from smtp3.ccs.ornl.gov (smtp3.ccs.ornl.gov [160.91.203.39]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by pdx1-mailman-customer002.dreamhost.com (Postfix) with ESMTPS id 4MVbmB74htz1yDM for ; Sat, 17 Sep 2022 22:22:34 -0700 (PDT) Received: from star.ccs.ornl.gov (star.ccs.ornl.gov [160.91.202.134]) by smtp3.ccs.ornl.gov (Postfix) with ESMTP id 17A178F16; Sun, 18 Sep 2022 01:22:17 -0400 (EDT) Received: by star.ccs.ornl.gov (Postfix, from userid 2004) id 14B74E8B94; Sun, 18 Sep 2022 01:22:17 -0400 (EDT) From: James Simmons To: Andreas Dilger , Oleg Drokin , NeilBrown Date: Sun, 18 Sep 2022 01:22:12 -0400 Message-Id: <1663478534-19917-23-git-send-email-jsimmons@infradead.org> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1663478534-19917-1-git-send-email-jsimmons@infradead.org> References: <1663478534-19917-1-git-send-email-jsimmons@infradead.org> Subject: [lustre-devel] [PATCH 22/24] lnet: allow direct messages regardless of peer NI status X-BeenThere: lustre-devel@lists.lustre.org X-Mailman-Version: 2.1.39 Precedence: list List-Id: "For discussing Lustre software development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Serguei Smirnov , Lustre Development List MIME-Version: 1.0 Errors-To: lustre-devel-bounces@lists.lustre.org Sender: "lustre-devel" From: Serguei Smirnov If check_routers_before_use is enabled, the router needs to be pinged before it is used, which is not possible because its NIs are assumed to be down at start-up. Don't prevent discovery of the router in this case. This change allows non-routed traffic to peer NIs with "down" status. WC-bug-id: https://jira.whamcloud.com/browse/LU-16106 Lustre-commit: 3345a8a54e89c342a4ce ("LU-16106 lnet: allow direct messages regardless of peer NI status") Signed-off-by: Serguei Smirnov Reviewed-on: https://review.whamcloud.com/48355 Reviewed-by: Frank Sehr Reviewed-by: Chris Horn Reviewed-by: Oleg Drokin Signed-off-by: James Simmons --- net/lnet/lnet/lib-move.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/lnet/lnet/lib-move.c b/net/lnet/lnet/lib-move.c index 3c9602e..a8a5ddb 100644 --- a/net/lnet/lnet/lib-move.c +++ b/net/lnet/lnet/lib-move.c @@ -597,6 +597,10 @@ void lnet_usr_translate_stats(struct lnet_ioctl_element_msg_stats *msg_stats, if (lnet_msg_is_response(msg)) return false; + /* always send non-routed messages */ + if (!msg->msg_routing) + return false; + /* assume peer_ni is alive as long as we're within the configured * peer timeout */