Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932169AbaGIXoX (ORCPT ); Wed, 9 Jul 2014 19:44:23 -0400 Received: from shards.monkeyblade.net ([149.20.54.216]:34628 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751442AbaGIXoV (ORCPT ); Wed, 9 Jul 2014 19:44:21 -0400 Date: Wed, 09 Jul 2014 16:44:20 -0700 (PDT) Message-Id: <20140709.164420.157865201153845876.davem@davemloft.net> To: mugunthanvnm@ti.com Cc: netdev@vger.kernel.org, linux-api@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [net-next PATCH v2 0/3] Broadcast/Multicast rate limit via Ethtool Coalesce From: David Miller In-Reply-To: <1404890050-4020-1-git-send-email-mugunthanvnm@ti.com> References: <1404890050-4020-1-git-send-email-mugunthanvnm@ti.com> X-Mailer: Mew version 6.5 on Emacs 24.1 / 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]); Wed, 09 Jul 2014 16:44:21 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Mugunthan V N Date: Wed, 9 Jul 2014 12:44:07 +0530 > A system/cpu can be loaded by a hacker with flooding of broadcast or > multicast packets, to prevent this some Ethernet controllers like CPSW > provide a mechanism to limit the broadcast/multicast packet rate via > hardware limiters. This patch series enables this feature via > Ethtool Coalesce. This is pretty bogus if you ask me. What is the difference from accepting a high rate of unicast packets? I say it is no different. Therefore, this feature makes no sense to me at all. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/