From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael Chan" Subject: Re: [Bugme-new] [Bug 14685] New: 2.6.30 -> 2.6.31: very high number of RX dropped in bnx2 Date: Mon, 30 Nov 2009 09:44:53 -0800 Message-ID: <1259603093.14964.79.camel@nseg_linux_HP1.broadcom.com> References: Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: "'Andrew Morton'" , "netdev@vger.kernel.org" , "bugzilla-daemon@bugzilla.kernel.org" , "bugme-daemon@bugzilla.kernel.org" To: "Krzysztof Oledzki" Return-path: Received: from mms3.broadcom.com ([216.31.210.19]:1127 "EHLO MMS3.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753284AbZK3R4i (ORCPT ); Mon, 30 Nov 2009 12:56:38 -0500 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: On Mon, 2009-11-30 at 07:33 -0800, Krzysztof Oledzki wrote: > # ethtool -S eth0|egrep "(rx_bcast_packets|rx_mcast_packets| > rx_fw_discards)" > rx_mcast_packets: 2806 > rx_bcast_packets: 790016 > rx_fw_discards: 790016 This tells me that all the dropped packets are occurring in the iSCSI ring. We have recently enabled iSCSI in the kernel and you probably don't have the userspace components to handle the iSCSI ring. All broadcast packets are also received in the iSCSI ring and they are all dropped in this case without the userspace components. Networking is not affected. If you rmmod the bnx2i and cnic drivers, the drop counter should stop counting. We have newer firmware that will not include dropped iSCSI packets in the networking counters. It should appear in the 2.6.33 kernel time-frame. Thanks.