From owner-freebsd-net@FreeBSD.ORG  Thu Mar  8 04:17:09 2012
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: net@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 00747106566B;
	Thu,  8 Mar 2012 04:17:09 +0000 (UTC)
	(envelope-from egrosbein@rdtc.ru)
Received: from eg.sd.rdtc.ru (eg.sd.rdtc.ru [IPv6:2a03:3100:c:13::5])
	by mx1.freebsd.org (Postfix) with ESMTP id 5D1D78FC0A;
	Thu,  8 Mar 2012 04:17:08 +0000 (UTC)
Received: from eg.sd.rdtc.ru (localhost [127.0.0.1])
	by eg.sd.rdtc.ru (8.14.5/8.14.5) with ESMTP id q284H4FK020539;
	Thu, 8 Mar 2012 11:17:04 +0700 (NOVT)
	(envelope-from egrosbein@rdtc.ru)
Message-ID: <4F5832C0.8070409@rdtc.ru>
Date: Thu, 08 Mar 2012 11:17:04 +0700
From: Eugene Grosbein <egrosbein@rdtc.ru>
User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; ru-RU;
	rv:1.9.2.13) Gecko/20110112 Thunderbird/3.1.7
MIME-Version: 1.0
To: pyunyh@gmail.com
References: <4F5608EA.6080705@rdtc.ru>	<20120307202914.GB9436@michelle.cdnetworks.com>	<4F571870.3090902@rdtc.ru>	<20120308034345.GD9436@michelle.cdnetworks.com>	<4F578FE1.1000808@rdtc.ru>
	<20120308190628.GB13138@michelle.cdnetworks.com>
In-Reply-To: <20120308190628.GB13138@michelle.cdnetworks.com>
Content-Type: text/plain; charset=KOI8-R
Content-Transfer-Encoding: 8bit
Cc: marius@freebsd.org, yongari@freebsd.org,
	"net@freebsd.org" <net@freebsd.org>
Subject: Re: suboptimal bge(4) BCM5704 performance in RELENG_8
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 08 Mar 2012 04:17:09 -0000

09.03.2012 02:06, YongHyeon PYUN пишет:

>>>>> Show me the output of "sysctl dev.bge.0.stats".
>>>>
>>>> # sysctl dev.bge.0.stats
>>>> dev.bge.0.stats.FramesDroppedDueToFilters: 0
>>>> dev.bge.0.stats.DmaWriteQueueFull: 84072
>>>> dev.bge.0.stats.DmaWriteHighPriQueueFull: 0
>>>> dev.bge.0.stats.NoMoreRxBDs: 0
>>>> dev.bge.0.stats.InputDiscards: 0
>>>> dev.bge.0.stats.InputErrors: 30
>>>> dev.bge.0.stats.RecvThresholdHit: 745400662
>>>> dev.bge.0.stats.DmaReadQueueFull: 2020586592
>>>> dev.bge.0.stats.DmaReadHighPriQueueFull: 0
>>>> dev.bge.0.stats.SendDataCompQueueFull: 0
>>>> dev.bge.0.stats.RingSetSendProdIndex: 2832885493
>>>> dev.bge.0.stats.RingStatusUpdate: 899990835
>>>> dev.bge.0.stats.Interrupts: 899990835
>>>> dev.bge.0.stats.AvoidedInterrupts: 0
>>>> dev.bge.0.stats.SendThresholdHit: 0
>>>> dev.bge.0.stats.rx.ifHCInOctets: 491268800
>>>> dev.bge.0.stats.rx.Fragments: 234
>>>> dev.bge.0.stats.rx.UnicastPkts: 1977202324
>>>> dev.bge.0.stats.rx.MulticastPkts: 0
>>>> dev.bge.0.stats.rx.FCSErrors: 341
>>>   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>> You have multiple FCS and Input errors. Check signal
>>> quality(i.e. UTP cable).
>>
>> OTOH, should not bge(4) for such errors increase "Ierrs" counters
>> that shows netstat -i?
>>
> 
> You're right.  I checked the code and noticed that old
> controllers(BCM570[0-4]) do not report these errors.
> Would you try attached patch and let me know whether it corrects
> statistics counter?  The patch also will show more information like
> whether the controller runs in PCI mode or not as well as showing
> frequency of PCI clock speed.

I've applied the patch. Now dmesg shows:

bge0: <HP NC7782 Gigabit Server Adapter, ASIC rev. 0x002100> mem 0xfdf70000-0xfdf7ffff irq 25 at device 2.0 on pci2
bge0: CHIP ID 0x00002100; ASIC REV 0x02; CHIP REV 0x21; PCI-X 66 MHz

I'll watch on Ierrs counter.

Eugene Grosbein