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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 515E9C433FF for ; Thu, 8 Aug 2019 19:14:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 20616214C6 for ; Thu, 8 Aug 2019 19:14:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1565291697; bh=xAKeC1Ay7OyxgDDNdrMmEq8ZYbemYt/h0OLCkvugigg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=0bRGUH7qJ+eeIiHUtGcoC3l+6mLUDVsX5RPt08eFagANZUSR1fN7HzgnGabHuxtOw xVeeYPpLi5GRT4kvEuipbG44veQE1cyJLZKbp5RRvnYIJMRUhQrNx7pC4yX4Dh3Vxl qm/BUswLLhG7glxVp7HdpkcMlAcMBgiG5LRd2I+A= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404318AbfHHTHq (ORCPT ); Thu, 8 Aug 2019 15:07:46 -0400 Received: from mail.kernel.org ([198.145.29.99]:41550 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404734AbfHHTHp (ORCPT ); Thu, 8 Aug 2019 15:07:45 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0766F21882; Thu, 8 Aug 2019 19:07:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1565291264; bh=xAKeC1Ay7OyxgDDNdrMmEq8ZYbemYt/h0OLCkvugigg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kppK8OQWshod7DEpogYyBT5kNfqWONtN926bAb7vdSKY/U0qjHZIIPXyB0WnBR9Av L2E+DOFd0lBpVAqUJiB1Vj94ETORYVxTGLQ3zYtKWPzO8hOigShqKBUAnLWezO6Q1o 9toshc9BeyOMV+q/0WdzKycwbqwlYWFVx7Q+XpiQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Petr Machata , Ido Schimmel , "David S. Miller" Subject: [PATCH 5.2 50/56] mlxsw: spectrum_buffers: Further reduce pool size on Spectrum-2 Date: Thu, 8 Aug 2019 21:05:16 +0200 Message-Id: <20190808190455.242734555@linuxfoundation.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190808190452.867062037@linuxfoundation.org> References: <20190808190452.867062037@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Petr Machata [ Upstream commit 744ad9a357280d03d567538cee7e1e457dedd481 ] In commit e891ce1dd2a5 ("mlxsw: spectrum_buffers: Reduce pool size on Spectrum-2"), pool size was reduced to mitigate a problem in port buffer usage of ports split four ways. It turns out that this work around does not solve the issue, and a further reduction is required. Thus reduce the size of pool 0 by another 2.7 MiB, and round down to the whole number of cells. Fixes: e891ce1dd2a5 ("mlxsw: spectrum_buffers: Reduce pool size on Spectrum-2") Signed-off-by: Petr Machata Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c @@ -437,8 +437,8 @@ static const struct mlxsw_sp_sb_pr mlxsw MLXSW_SP1_SB_PR_CPU_SIZE, true, false), }; -#define MLXSW_SP2_SB_PR_INGRESS_SIZE 38128752 -#define MLXSW_SP2_SB_PR_EGRESS_SIZE 38128752 +#define MLXSW_SP2_SB_PR_INGRESS_SIZE 35297568 +#define MLXSW_SP2_SB_PR_EGRESS_SIZE 35297568 #define MLXSW_SP2_SB_PR_CPU_SIZE (256 * 1000) /* Order according to mlxsw_sp2_sb_pool_dess */