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=-3.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,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 EA57AC43381 for ; Wed, 27 Mar 2019 16:56:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C0D5B206C0 for ; Wed, 27 Mar 2019 16:56:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727777AbfC0Q4h (ORCPT ); Wed, 27 Mar 2019 12:56:37 -0400 Received: from metis.ext.pengutronix.de ([85.220.165.71]:53255 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727172AbfC0Q4h (ORCPT ); Wed, 27 Mar 2019 12:56:37 -0400 Received: from dude02.hi.pengutronix.de ([2001:67c:670:100:1d::28] helo=dude02.lab.pengutronix.de) by metis.ext.pengutronix.de with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1h9Bqt-0005Ol-F4; Wed, 27 Mar 2019 17:56:35 +0100 Received: from mkl by dude02.lab.pengutronix.de with local (Exim 4.89) (envelope-from ) id 1h9Bqr-0000A6-Lq; Wed, 27 Mar 2019 17:56:33 +0100 From: Marc Kleine-Budde To: netdev@vger.kernel.org Cc: davem@davemloft.net, linux-can@vger.kernel.org, kernel@pengutronix.de, Dave Taht , Jamal Hadi Salim , Cong Wang , Jiri Pirko Subject: [RFC] net: sch_generic: fq_codel vs pfifo_fast Date: Wed, 27 Mar 2019 17:56:30 +0100 Message-Id: <20190327165632.10711-1-mkl@pengutronix.de> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::28 X-SA-Exim-Mail-From: mkl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: netdev@vger.kernel.org Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hello, on CAN networking hardware we (the CAN community) experience a lot silent, unwanted frame drops inside the kernel. (See first patch for details.) So here's a patch series to keep pfifo_fast as default scheduler for CAN hardware by default. Consider this as an RFC. Regards, Marc