From patchwork Sun Oct 14 18:55:26 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Simmons X-Patchwork-Id: 10640791 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3E71E13AD for ; Sun, 14 Oct 2018 18:56:05 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E9CCE291F2 for ; Sun, 14 Oct 2018 18:56:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DB613293CC; Sun, 14 Oct 2018 18:56:04 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from pdx1-mailman02.dreamhost.com (pdx1-mailman02.dreamhost.com [64.90.62.194]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 8F09828B9F for ; Sun, 14 Oct 2018 18:56:04 +0000 (UTC) Received: from pdx1-mailman02.dreamhost.com (localhost [IPv6:::1]) by pdx1-mailman02.dreamhost.com (Postfix) with ESMTP id 03D3C21FB47; Sun, 14 Oct 2018 11:55:49 -0700 (PDT) X-Original-To: lustre-devel@lists.lustre.org Delivered-To: lustre-devel-lustre.org@pdx1-mailman02.dreamhost.com Received: from smtp3.ccs.ornl.gov (smtp3.ccs.ornl.gov [160.91.203.39]) by pdx1-mailman02.dreamhost.com (Postfix) with ESMTP id 9756421F20E for ; Sun, 14 Oct 2018 11:55:37 -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 CD8172237; Sun, 14 Oct 2018 14:55:34 -0400 (EDT) Received: by star.ccs.ornl.gov (Postfix, from userid 2004) id C87D32A5; Sun, 14 Oct 2018 14:55:34 -0400 (EDT) From: James Simmons To: Andreas Dilger , Oleg Drokin , NeilBrown Date: Sun, 14 Oct 2018 14:55:26 -0400 Message-Id: <1539543332-28679-5-git-send-email-jsimmons@infradead.org> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1539543332-28679-1-git-send-email-jsimmons@infradead.org> References: <1539543332-28679-1-git-send-email-jsimmons@infradead.org> Subject: [lustre-devel] [PATCH 04/10] lustre: lnd: use less CQ entries for each connection 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: Alexey Lyashkov , Lustre Development List MIME-Version: 1.0 Errors-To: lustre-devel-bounces@lists.lustre.org Sender: "lustre-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Alexey Lyashkov Currently we have a 2 work requests chains per transfer. It mean OFED stack will generate only 2 events if transfer will faild. Reduce number CQ entries to avoid extra resource consumption. Signed-off-by: Alexey Lyashkov WC-bug-id: https://jira.whamcloud.com/browse/LU-9810 Seagate-bug-id: MRP-4508 Reviewed-on: https://review.whamcloud.com/28279 Reviewed-by: Dmitry Eremin Reviewed-by: Doug Oucharek Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-off-by: James Simmons --- drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h index a6008ea..cd64cfb 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h @@ -142,7 +142,9 @@ struct kib_tunables { #define IBLND_SEND_WRS(c) \ ((c->ibc_max_frags + 1) * kiblnd_concurrent_sends(c->ibc_version, \ c->ibc_peer->ibp_ni)) -#define IBLND_CQ_ENTRIES(c) (IBLND_RECV_WRS(c) + IBLND_SEND_WRS(c)) +#define IBLND_CQ_ENTRIES(c) \ + (IBLND_RECV_WRS(c) + 2 * kiblnd_concurrent_sends(c->ibc_version, \ + c->ibc_peer->ibp_ni)) struct kib_hca_dev;