From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751877AbbCAFaN (ORCPT ); Sun, 1 Mar 2015 00:30:13 -0500 Received: from shards.monkeyblade.net ([149.20.54.216]:37000 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750953AbbCAFaJ (ORCPT ); Sun, 1 Mar 2015 00:30:09 -0500 Date: Sun, 01 Mar 2015 00:30:07 -0500 (EST) Message-Id: <20150301.003007.247806713909808067.davem@davemloft.net> To: jaedon.shin@gmail.com Cc: f.fainelli@gmail.com, pgynther@google.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3] net: bcmgenet: fix throughtput regression From: David Miller In-Reply-To: <1425091706-5811-1-git-send-email-jaedon.shin@gmail.com> References: <1425091706-5811-1-git-send-email-jaedon.shin@gmail.com> X-Mailer: Mew version 6.6 on Emacs 24.4 / Mule 6.0 (HANACHIRUSATO) 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-4.5.7 (shards.monkeyblade.net [149.20.54.216]); Sat, 28 Feb 2015 21:30:08 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jaedon Shin Date: Sat, 28 Feb 2015 11:48:26 +0900 > This patch adds bcmgenet_tx_poll for the tx_rings. This can reduce the > interrupt load and send xmit in network stack on time. This also > separated for the completion of tx_ring16 from bcmgenet_poll. > > The bcmgenet_tx_reclaim of tx_ring[{0,1,2,3}] operative by an interrupt > is to be not more than a certain number TxBDs. It is caused by too > slowly reclaiming the transmitted skb. Therefore, performance > degradation of xmit after 605ad7f ("tcp: refine TSO autosizing"). > > Signed-off-by: Jaedon Shin > Signed-off-by: Florian Fainelli Applied.