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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 00941C43381 for ; Fri, 8 Mar 2019 23:25:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C87FD20684 for ; Fri, 8 Mar 2019 23:25:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726670AbfCHXZq (ORCPT ); Fri, 8 Mar 2019 18:25:46 -0500 Received: from shards.monkeyblade.net ([23.128.96.9]:41490 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726094AbfCHXZp (ORCPT ); Fri, 8 Mar 2019 18:25:45 -0500 Received: from localhost (unknown [IPv6:2601:601:9f80:35cd::d71]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 034C01479C97C; Fri, 8 Mar 2019 15:25:44 -0800 (PST) Date: Fri, 08 Mar 2019 15:25:44 -0800 (PST) Message-Id: <20190308.152544.1392696861540820759.davem@davemloft.net> To: brodie.greenfield@alliedtelesis.co.nz Cc: stephen@networkplumber.org, kuznet@ms2.inr.ac.ru, yoshfuji@linux-ipv6.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, chris.packham@alliedtelesis.co.nz, luuk.paulussen@alliedtelesis.co.nz Subject: Re: [PATCH 0/2] Make ipmr queue length configurable From: David Miller In-Reply-To: <20190307045729.14972-1-brodie.greenfield@alliedtelesis.co.nz> References: <20190307045729.14972-1-brodie.greenfield@alliedtelesis.co.nz> X-Mailer: Mew version 6.8 on Emacs 26.1 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-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Fri, 08 Mar 2019 15:25:45 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Brodie Greenfield Date: Thu, 7 Mar 2019 17:57:27 +1300 > We want to have some more space in our queue for processing incoming > multicast packets, so we can process more of them without dropping > them prematurely. It is useful to be able to increase this limit on > higher-spec platforms that can handle more items. > > For the particular use case here at Allied Telesis, we have linux > running on our switches and routers, with support for the number of > multicast groups being increased. Basically, this queue length affects > the time taken to fully learn all of the multicast streams. > > Changes in v3: > - Corrected a v4 to v6 typo. This is a new feature, and therefore net-next material. The net-next tree is closed, please resubmit when it opens back up.