From patchwork Thu Jan 21 17:16:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Simmons X-Patchwork-Id: 12037153 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 ADB41C433E0 for ; Thu, 21 Jan 2021 17:17:29 +0000 (UTC) Received: from pdx1-mailman02.dreamhost.com (pdx1-mailman02.dreamhost.com [64.90.62.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6624C23A57 for ; Thu, 21 Jan 2021 17:17:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6624C23A57 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lustre-devel-bounces@lists.lustre.org Received: from pdx1-mailman02.dreamhost.com (localhost [IPv6:::1]) by pdx1-mailman02.dreamhost.com (Postfix) with ESMTP id 9DD9321FD95; Thu, 21 Jan 2021 09:17:22 -0800 (PST) Received: from smtp4.ccs.ornl.gov (smtp4.ccs.ornl.gov [160.91.203.40]) by pdx1-mailman02.dreamhost.com (Postfix) with ESMTP id 1BE3121FBB4 for ; Thu, 21 Jan 2021 09:17:11 -0800 (PST) Received: from star.ccs.ornl.gov (star.ccs.ornl.gov [160.91.202.134]) by smtp4.ccs.ornl.gov (Postfix) with ESMTP id 525B91008062; Thu, 21 Jan 2021 12:17:05 -0500 (EST) Received: by star.ccs.ornl.gov (Postfix, from userid 2004) id 5194A1B49D; Thu, 21 Jan 2021 12:17:05 -0500 (EST) From: James Simmons To: Andreas Dilger , Oleg Drokin , NeilBrown Date: Thu, 21 Jan 2021 12:16:41 -0500 Message-Id: <1611249422-556-19-git-send-email-jsimmons@infradead.org> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1611249422-556-1-git-send-email-jsimmons@infradead.org> References: <1611249422-556-1-git-send-email-jsimmons@infradead.org> Subject: [lustre-devel] [PATCH 18/39] lnet: Introduce lnet_recovery_limit parameter X-BeenThere: lustre-devel@lists.lustre.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "For discussing Lustre software development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Chris Horn , Lustre Development List MIME-Version: 1.0 Errors-To: lustre-devel-bounces@lists.lustre.org Sender: "lustre-devel" From: Chris Horn This parameter controls how long LNet will attempt to recover an unhealthy interface. Defaults to 0 to indicate indefinite recovery. This maintains the current behavior. HPE-bug-id: LUS-9109 WC-bug-id: https://jira.whamcloud.com/browse/LU-13569 Lustre-commit: a2e61838f8de89 ("LU-13569 lnet: Introduce lnet_recovery_limit parameter") Signed-off-by: Chris Horn Reviewed-on: https://review.whamcloud.com/39716 Reviewed-by: Amir Shehata Reviewed-by: Serguei Smirnov Reviewed-by: Oleg Drokin Signed-off-by: James Simmons --- include/linux/lnet/lib-lnet.h | 1 + net/lnet/lnet/api-ni.c | 5 +++++ 2 files changed, 6 insertions(+) diff --git a/include/linux/lnet/lib-lnet.h b/include/linux/lnet/lib-lnet.h index d349f06..927ca44 100644 --- a/include/linux/lnet/lib-lnet.h +++ b/include/linux/lnet/lib-lnet.h @@ -476,6 +476,7 @@ struct lnet_ni * extern unsigned int lnet_numa_range; extern unsigned int lnet_health_sensitivity; extern unsigned int lnet_recovery_interval; +extern unsigned int lnet_recovery_limit; extern unsigned int lnet_peer_discovery_disabled; extern unsigned int lnet_drop_asym_route; extern unsigned int router_sensitivity_percentage; diff --git a/net/lnet/lnet/api-ni.c b/net/lnet/lnet/api-ni.c index 03473bf..322b25d 100644 --- a/net/lnet/lnet/api-ni.c +++ b/net/lnet/lnet/api-ni.c @@ -112,6 +112,11 @@ static int recovery_interval_set(const char *val, MODULE_PARM_DESC(lnet_recovery_interval, "Interval to recover unhealthy interfaces in seconds"); +unsigned int lnet_recovery_limit; +module_param(lnet_recovery_limit, uint, 0644); +MODULE_PARM_DESC(lnet_recovery_limit, + "How long to attempt recovery of unhealthy peer interfaces in seconds. Set to 0 to allow indefinite recovery"); + static int lnet_interfaces_max = LNET_INTERFACES_MAX_DEFAULT; static int intf_max_set(const char *val, const struct kernel_param *kp); module_param_call(lnet_interfaces_max, intf_max_set, param_get_int,