From owner-freebsd-net@FreeBSD.ORG Sun May 4 22:07:14 2008 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B122D1065675 for ; Sun, 4 May 2008 22:07:14 +0000 (UTC) (envelope-from oleksandr@samoylyk.sumy.ua) Received: from mail.telesweet.net (news.telesweet.net [194.110.252.16]) by mx1.freebsd.org (Postfix) with ESMTP id 6733D8FC16 for ; Sun, 4 May 2008 22:07:13 +0000 (UTC) (envelope-from oleksandr@samoylyk.sumy.ua) Received: from localhost (localhost [127.0.0.1]) by mail.telesweet.net (Postfix) with ESMTP id B16E9B829; Mon, 5 May 2008 01:07:11 +0300 (EEST) X-Virus-Scanned: by Telesweet Mail Virus Scanner X-Spam-Flag: NO X-Spam-Score: -1.44 X-Spam-Level: X-Spam-Status: No, score=-1.44 tagged_above=-999 required=5 tests=[ALL_TRUSTED=-1.44] Received: from [10.0.0.109] (pigeon-work.telesweet [10.0.0.109]) by mail.telesweet.net (Postfix) with ESMTP id 37566B825; Mon, 5 May 2008 01:07:10 +0300 (EEST) Message-ID: <481E338D.6040706@samoylyk.sumy.ua> Date: Mon, 05 May 2008 01:07:09 +0300 From: Oleksandr Samoylyk User-Agent: Thunderbird 2.0.0.12 (X11/20080227) MIME-Version: 1.0 To: mike@sentex.net References: <481C84B7.6020205@samoylyk.sumy.ua> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-net@freebsd.org Subject: Re: Troubles with em on FreeBSD 7 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 04 May 2008 22:07:14 -0000 mike@sentex.net wrote: > > A new version of the em drivers went into the tree Friday. > >> dev.em.0.%desc: Intel(R) PRO/1000 Network Connection Version - 6.7.3 > > dev.em.0.%desc: Intel(R) PRO/1000 Network Connection 6.9.0 > dev.em.0.%driver: em > dev.em.0.%location: slot=0 function=0 > dev.em.0.%pnpinfo: vendor=0x8086 device=0x108c subvendor=0x15d9 > subdevice=0x108c class=0x020000 > dev.em.0.%parent: pci13 > dev.em.0.debug: -1 > dev.em.0.stats: -1 > dev.em.0.rx_int_delay: 0 > dev.em.0.tx_int_delay: 66 > dev.em.0.rx_abs_int_delay: 66 > dev.em.0.tx_abs_int_delay: 66 > dev.em.0.rx_processing_limit: 100 I tried both: - new drivers: 6.9.0 - rx_processing_limit: 100 Result the same :( > Also, post some of the stats. Do a > sysctl -w dev.em.1.stats=1 > to all of your em nics em0: Excessive collisions = 0 em0: Sequence errors = 0 em0: Defer count = 0 em0: Missed Packets = 434970 em0: Receive No Buffers = 290593 em0: Receive Length Errors = 0 em0: Receive errors = 0 em0: Crc errors = 0 em0: Alignment errors = 0 em0: Collision/Carrier extension errors = 0 em0: RX overruns = 2929 em0: watchdog timeouts = 0 em0: XON Rcvd = 0 em0: XON Xmtd = 0 em0: XOFF Rcvd = 0 em0: XOFF Xmtd = 0 em0: Good Packets Rcvd = 64182304 em0: Good Packets Xmtd = 84277659 em0: TSO Contexts Xmtd = 832 em0: TSO Contexts Failed = 0 em1: Excessive collisions = 0 em1: Sequence errors = 0 em1: Defer count = 0 em1: Missed Packets = 0 em1: Receive No Buffers = 0 em1: Receive Length Errors = 0 em1: Receive errors = 0 em1: Crc errors = 0 em1: Alignment errors = 0 em1: Collision/Carrier extension errors = 0 em1: RX overruns = 0 em1: watchdog timeouts = 0 em1: XON Rcvd = 0 em1: XON Xmtd = 0 em1: XOFF Rcvd = 0 em1: XOFF Xmtd = 0 em1: Good Packets Rcvd = 62431510 m1: Good Packets Xmtd = 55466567 em1: TSO Contexts Xmtd = 0 em1: TSO Contexts Failed = 0 > And are you using gigabit or fastE. If fastE, try disabling TSO as > some people have said they have problems with it at 100Mb. I'm on GgE. Disabling TSO doesn't help as well. -- Oleksandr Samoylyk OVS-RIPE